Detailed History of Ghostscript versions 8.xx

Table of contents

This document is a record of changes in Ghostscript releases numbered 8.xx. For earlier versions, see the the history documents:

History of Ghostscript versions 7.n
History of Ghostscript versions 6.n
History of Ghostscript versions 5.n
History of Ghostscript versions 4.n
History of Ghostscript versions 3.n
History of Ghostscript versions 2.n
History of Ghostscript versions 1.n

For other information, see the Ghostscript overview.

Version 8.71 (2010-02-10)

This is the second release in the stable 8.7x series. It features improved handling of fonts, nesting and color fixes with transparency objects, reduced memory footprint for the halftone cache, as well as improvements to the pxl output devices, and the usual number of bug and robustness fixes.

New in this release is an experimental project file for Microsoft Visual Studio. This wraps the normal nmake build, and makes it easier for developers to get started building Ghostscript with that compiler.

Support for tiff file output is now provided using the libtiff implementation rather than our more limited native code as in previous releases. There is also a new 'tiffsep1' output device which produces halftoned separations at 1 bit-per-pixel, in contrast to the 'tiffsep' device which produces 8 bit-per-pixel plates.

Support for using FreeType as a type rasterizer has been greatly improved. We do not recommend its use as of this release, but it is much more functional than previously and our intent is that it will become the default in a future release.

The graphics library has been updated to provide more accurate scan conversion of vector art including fixes to dash behavior, transparent stroked paths, thick stroked paths, radial shadings, xps cap handling, "pie" joins, degenerate beziers, improved handling of dropouts in thin strokes and better thin axis-aligned strokes.

For a list of open issues, or to report problems with this release, please visit bugs.ghostscript.com.

Incompatible changes

No recorded incompatible changes.

Changelog

2010-02-09T16:13:39.643382Z Ralph Giles

Clean up some typos in the release notes, and mention the reduced memory
footprint of the halftone cache from r10006.

[doc/News.htm]

2010-02-08T22:10:30.586772Z Ralph Giles

Update the change logs for the second 8.71 release candidate.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

2010-02-08T22:03:22.755385Z Ralph Giles

Add some notes on what's new in the 8.71 release.

[doc/News.htm]

2010-02-08T20:06:58.778484Z Ralph Giles

Update the the release dates for the second 8.71 release candidate.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 base/gscdef.c man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Fonts.htm doc/Ps2ps2.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp man/font2c.1 man/gsnd.1 base/version.mak man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2010-02-08T17:35:32.033134Z Robin Watts

Update Visual Studio solutions to use the DEVSTUDIO= form of makefile
invocation, rather than MSVC_STUDIO=8 version. This should isolate the
solution/projects entirely from the version of visual studio in use.

Simplify the ReadMe.txt file accordingly.

Take the opportunity to add the resource files to the list in the
ghostscript.vcproj file. This makes no difference to the project in
terms of building, but enables easy navigation/editing of files
within VS.

[/trunk/ghostpdl/win32/ReadMe.txt /trunk/ghostpdl/win32/xps.vcproj ghostscript.vcproj /trunk/ghostpdl/win32/pcl.vcproj /trunk/ghostpdl/win32/svg.vcproj /trunk/ghostpdl/win32/language_switch.vcproj]

2010-02-08T16:45:47.345828Z Ken Sharp

Fix (pdfwrite) bug #691101 (part 2 of 2)

The revisions 10474 and 10476 were intended to address an indeterminism but actually
introduced a fairly serious regression. The code was changed to return any error value
from the glyph_info method before testing the members of the 'info' structure passed to
the method. Previously one of the member could be examined when an error had meant that
the member was still uniinitialised.

However, these revision missed the fact that the glyph_info method can return a
'rangecheck' error when they require a CDevProc to be executed. Because the error code
was tested before checking for a CDevProc, the pdfwrite code never executed the
CDevproc.

This resulted in a (very) few regressions, this is because the PDF interpreter uses
a CDevProc to alter the widths of glyphs if a /W array is present in a PDF file.

The code now initialises the member of the structure to 0, which we then test before
checking the return code. If we need to run a CDevProc we now do so.

Part 2 of this commit explains some further issues with CDevProcs.

[base/gdevpdtt.c]

2010-02-08T16:45:18.598274Z Ken Sharp

Fix (pdfwrite) bug #691101 (part 1 of 2)

The revision 10603 fixed a number of issues relating to FontMatrix and descendant fonts
of CIDFonts. However part of the fix, in CIDWProc, used 'currentfont' to address the
font dictionary instead of 'currentdict', as is done in the rest of the routine.

For rendering devices this works well, but for pdfwrite the two dictionaries are not 
the same, and this causes PostScript errors.

This error was initially hidden by the revisions 10474 and 10476 which inadvertently 
caused all CDevProc routines not to execute when using pdfwrite.

This patch alters the CIDWProc to use currentdict instead of currentfont, there are no
differences with rendering devices but with pdfwrite this causes the CDevProc to 
execute properly, eliminating a number of errors (when the faulty revisiions 10474
and 10476 are rolled back)

[Resource/Init/pdf_font.ps]

2010-02-04T17:47:57.663462Z Lars Uebernickel

Changed MaxStripSize for TIFF devices to default to 8 KB.

This is necessary, because libtiff keeps a whole strip in memory at a time,
which resulted in very large buffers for big files.  Support of MaxStripSize for
all TIFF devices which didn't have it before was also added.

[base/gdevtifs.c base/gdevtifs.h tiff/libtiff/tif_config.vc.h base/gdevtsep.c doc/Devices.htm base/gdevtfnx.c base/gdevtfax.c]

2010-02-04T03:38:54.455593Z Ralph Giles

Update change logs for the 8.71 release candidate.

[doc/Changes.htm doc/History8.htm doc/Details8.htm doc/Details.htm]

2010-02-03T22:46:15.528358Z Ralph Giles

Remove the list of open bugs.

It's grown long enough to be unhelpful to track explicitly in each release.

[doc/News.htm]

2010-02-03T22:42:50.644387Z Ralph Giles

Update release date for the 8.71 release candidate.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 base/gscdef.c man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Fonts.htm doc/Ps2ps2.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp man/font2c.1 man/gsnd.1 base/version.mak man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2010-02-03T22:39:42.033100Z Ralph Giles

Document the location of the new vcproj file, and exclude it from the
extraneous files test.

[doc/Develop.htm toolbin/tests/check_dirs.py]

2010-02-03T22:29:34.129817Z Ralph Giles

Bump the copyright date for the windows metadata.

[psi/dwsetup.rc psi/winint.mak]

2010-02-02T22:48:55.363996Z Ralph Giles

Update our included copy of the libpng source to 1.2.42.

[libpng]

2010-02-02T22:45:55.167908Z Ralph Giles

Remove the in-tree copy of the libpng source to make way for a newer release.

[libpng]

2010-02-02T19:30:15.986507Z Ralph Giles

Update jbig2dec with the 0.11 release source.

[jbig2dec/aclocal.m4 jbig2dec/jbig2_metadata.c jbig2dec/install-sh jbig2dec/jbig2.c jbig2dec/mkinstalldirs jbig2dec/jbig2_image.c jbig2dec/configure jbig2dec/Makefile.in jbig2dec/jbig2_text.c jbig2dec/jbig2_metadata.h jbig2dec/jbig2_priv.h jbig2dec/depcomp jbig2dec/compile jbig2dec/jbig2dec.c jbig2dec/config.guess jbig2dec/jbig2_refinement.c jbig2dec/ltmain.sh jbig2dec/config.sub jbig2dec/README jbig2dec/jbig2_halftone.c jbig2dec/config.h.in jbig2dec/jbig2_segment.c jbig2dec/configure.ac jbig2dec/jbig2dec.1 jbig2dec/CHANGES jbig2dec/COPYING jbig2dec/Makefile.am jbig2dec/missing jbig2dec/jbig2_page.c]

2010-02-02T18:14:37.922390Z Hin-Tak Leung

Set rc.exe location according to MSSDK variable - fix build problem with windows 7 SDK - bug 691062.

[psi/msvc32.mak]

2010-02-02T07:23:57.821537Z Alex Cherepanov

Re-implement optional content support to avoid dependence on proper nesting
of optional content and q..Q blocks. Check for the visibility flag and skip
most graphic operations when needed. Skip test rendering operations by
installing nullpage device to minimize changes in a rather complicated code.
Bug 691076, customers 531, 850.

[Resource/Init/pdf_ops.ps Resource/Init/pdf_main.ps Resource/Init/pdf_draw.ps]

2010-02-01T19:41:49.001947Z Ray Johnston

Fix Windows UninstallString registry entry to use " " around the path and
uninistgs.exe so that (the usual) spaces in the path don't cause problems.
Thanks to Stefan Kanthak for pointing this out.

[psi/dwinst.cpp]

2010-02-01T00:02:04.763835Z Alex Cherepanov

Patch font resource category for CET testing to always return the font
memory usage as unknown (-1) to avoid differences between hosts.
Bug 691057.

[Resource/Init/gs_cet.ps]

2010-01-31T20:30:13.616671Z Alex Cherepanov

Use the sum of local and global VM usage for the value reported by
"/Font resourcestatus". This gives better estimation of memory consumption
and makes the result independent of the global state when the font was
loaded. With this patch CET case 23-33.PS shows different values for
"/Font resourcestatus".

[Resource/Init/gs_res.ps]

2010-01-31T00:46:38.360004Z Alex Cherepanov

Add a check whether the current layer is visible to Do operator.
This is a first step to replace implementation that relies on installation
of an non-rendering output device (nullpage) with an implementation
that uses direct checks. Bug 691059.

[Resource/Init/pdf_draw.ps]

2010-01-30T20:25:19.240406Z Alex Cherepanov

Fix 'undefined' error in 29-07C.PS CET test file that was happening because
.selectmedia procedure in gs_setpd.ps was building an error information
dictionary ('<failed>' in its comment) with many keys those doesn't exist in
<request> dictionary, such as /LeadinEdge or /InsertSheet.  This draws the
policy 0 procedure (line 544) to 'get' non-existant keys from <merged>
dictionary. Thanks to Masaki Ushizaka for the patch. Bug 691065.

[Resource/Init/gs_setpd.ps]

2010-01-30T06:50:14.586165Z Alex Cherepanov

Preserve /F and /BS attributes of /Link annotation during PDF to PDF
conversion. Thanks to Ken for the patch. Bug 691092, customer 1.

[Resource/Init/pdf_main.ps]

2010-01-29T21:40:45.586239Z regression

Added highres option to clusterpush.pl (opposite of lowres).

[toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl]

2010-01-28T21:43:37.243405Z Marcos H. Woehrmann

Fixed typo in clusterpush.pl.

[toolbin/localcluster/clusterpush.pl]

2010-01-28T19:34:19.913293Z regression

Added a new option to clusterpush.pl: lowres.  This option can appear
anywhere on the comand line and signals the local cluster regression to
only run lowres (72 and 75 dpi) output, for example:

  clusterpush.pl pcl lowres

or

  clusterpush.pl lowres "gs pcl" henrys

Note that this will fail if we ever hire an engineer with the name lowres
or use that as an internal product name.  Also, there currently aren't
any 75 dpi baseline md5sums for the pcl product, so until the next pcl
svn commit it doens't make sense to run with this option.

Also added partial support for generating bitmaps with changes and running them through bmpcmp.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl]

2010-01-28T15:18:36.842224Z Robin Watts

Squash a warning about %d and size_t spotted by Marcos. Thanks.

[toolbin/bmpcmp.c]

2010-01-28T15:13:05.688649Z Robin Watts

Fix free of incorrect pointer in bmpcmp.
Also tweak pnm reading so that no seeks are used, so we can use the

  bmpcmp < (zcat foo.pnm.gz)  < (zcat bar.pnm.gz) ...

trick if required (bmps still seek!).

[toolbin/bmpcmp.c]

2010-01-28T14:44:22.110825Z Ken Sharp

Remove accidental stupid inclusion of a C++ style comment ....

[psi/zfapi.c]

2010-01-28T14:32:52.354649Z Ken Sharp

Fix (FAPI)

Bit complex here. The FAPI code needs to tell the font rendering engine how much to
scale the font in order to get properly sized bitmaps. It does this by looking at the 
FontMatrix, comparing it with the 'original' FontMatrix and determining the scale from
there. 

The problem is that the 'original' FontMatrix was being retrieved from a copy of the 
font stored when it is defined, intended for use by pdfwrite. When we define a font we
check to see if it has an /OrigFont entry, and simply use the one which is present if
we do.

This causes us problems if we make a new scaled font by taking an existing font and 
changing its FontMatrix. We don't write the new FontMatrix into the OrigFont dict, and
so when we come to determine the font scale we divide the FontMatrix by the 'original'
stored matrix. This effectively results in any scale factor built into the FotnMatrix
being applied twice, once by FreeType because the FontMatrix isn't the default, and 
once by the FAPI when it divides the FotnMatrix by the original.

I didn't want to modify the OrigFont entry, as that would probably break pdfwrite, so
I've modified the FAPI code to take a copy of the FontMatrix at the time the font is
defined and store it in its own structure. We then use this to determine how much to
scale the font by dividing the current FontMatrix by the matrix at the time the font
was defined.

This fixes my hand-crafter test file and improves the output of Bug687615.ps and 
two_encodings.ps. The output is now the correct size, but the spacing is wrong in 
bug687615.ps and many glyphs are missing from two_encodings.ps.

[psi/fapi_ft.c psi/zfapi.c psi/ifapi.h psi/fapiufst.c]

2010-01-27T19:08:07.958712Z Robin Watts

Updated version of bmpcmp.c to support maxdiffs parameter. Also, bitmaps
are output numbered 00000, 00001, etc rather than 0, 1, etc to tidy
directory listings.

Updated htmldiff.pl file to cope with the rejigged number formats.

[toolbin/bmpcmp.c toolbin/htmldiff.pl]

2010-01-27T14:55:55.064385Z Robin Watts

Introduce new gs_currentdevicecolor function (and inline macro version) to
retrieve the current device color from the graphics state. Use this in the
2 places in pl that require it. This restricts all the knowledge of the
way colors are stored in the graphics state to being within the gs code.

This is done as a precursor to the work to support 2 color's in the graphics
state to enable a branch to be taken on gs only.

Regression tests predict 128 changes, but local testing with htmldiff.pl shows
none.

[base/gscolor2.c base/gscolor2.h /trunk/ghostpdl/pl/plchar.c /trunk/ghostpdl/pl/pldraw.c base/gzstate.h]

2010-01-26T01:15:46.612807Z Michael Vrhel

Fix for memory leak reported in bug 690754.  The memory leak occurred when processing xps transparency files.  The softmask group buffer was not being deallocated properly.  We now properly deallocate an old soft mask buffer that will no longer be used when new one is coming in to replace it.  There should not be any rendering differences with this commit.

[base/gdevp14.c]

2010-01-24T17:27:38.965229Z Robin Watts

Fix problems with htmldiff.pl introduced when introducing iframes mode.
(Javascript wasn't working, image source was incorrect).

[toolbin/htmldiff.pl]

2010-01-24T16:20:43.098277Z Robin Watts

Correct some errors in htmldiff.pl. Firstly, perl doesn't have true/false,
so use 0/1. Secondly, move framenum increment out of if where I'd incorrectly
put it before, resulting in everything going into the same dir unless iframes
were used.

[toolbin/htmldiff.pl]

2010-01-23T17:42:47.176361Z Robin Watts

Updated htmldiff; neater output structure - each files diffs go into their
own subdirectory. Option to use iframes to avoid regenerating the html
twice. Config file include now uses ENV{"HOME"} rather than ~ to work on
Mac OS.

[toolbin/htmldiff.pl]

2010-01-22T17:46:02.036283Z Till Kamppeter

"cups" output device: Reallocate memory for raster data only if the size of the bitmap has changed, to avoid data getting messed up by unneeded reallocation. This should finally fix bug #691029.

[cups/gdevcups.c]

2010-01-22T09:01:28.663933Z Ken Sharp

Fix (pswrite)

The pswrite device only partially implemented the 'file per page' output model. It
closed the output file and the bbox device, but did not open a new output file or
reopen the bbox device, leading to potential crashes later when the pswrite device
tried to access the bbox device.

This patch reopens the bbox device, and opens a new output file, at the end of every
page when we are outputting one file per page. The problem is that this will emit an
empty EPS after the last page is completed. Fixing this would mean delaying opening the
output file until we had received a marking operation. That's more work than we want
to do on this device, so this is being left as an issue.

[base/gdevps.c]

2010-01-21T03:04:21.383005Z Hin-Tak Leung

adding the tiff directory to the list of files to zip up during a windows build. Thanks Gennadiy Tsarenkov or the report and patch. Fixes bug 691069

[psi/winint.mak]

2010-01-20T19:07:01.585691Z Till Kamppeter

Fixed handling of back sides when duplex printing via the CUPS Raster output device. With PostScript as input format the y-axis of the back sides was often flipped (bug #691029).

[cups/gdevcups.c]

2010-01-20T18:11:39.888031Z Michael Vrhel

This commit is a fix for bug 691021 which had quantized (unsmooth) shading artifacts when transparency was present.

The primary changes to the code are:

The adaptive (non-fixed) smoothness method is now used in the shading code when transparency is present.  Previously there was a check put in place and if there was transparency a fixed amount of smoothing was enforced.

The color cache used in the shading code was updated to use the color information in the transparency device that is contained in the imager state.  This object is initialized with either the target device when there is no transparency or with the PDF14 device when there is transparency.  In this way, the proper color information is used by the cache.

The shading code makes use of the member variables comp_shift and comp_bits in the color_info member variable of the target device.  This information is now properly updated in the PDF14 device as the transparency group color space changes.

A clist change was also required for proper XPS rendering of gradients.  When it has a gradient with a transparency component, the XPS code first creates a soft mask group and draws the alpha shading.  It then creates a transparency group to draw the color components portion of the shading.  When the transparency group is popped, is is composed using the soft mask buffer which is the XPS opacity shading.  When we are going through the clist writer, the writer will end up drawing the shadings for both the opacity component and the color component with trapezoid fills.  Later, during the clist reading and execution of the trapezoid filling, a clipping device is created.  This device is created with the color info properties of the target device, which in our case is a PDF14 device.  The clipping device is first created during the soft mask group.  This group has color information associated with a grey device since it is just a single channel (the XPS alpha channel).  Later, the same clipping device is used when we are doing the trapezoid filling during the transparency group fills.  The problem is that the color information of the target device may have changed, for example if the transparency color group is RGB or CMYK.  We need to test for that and update the color info for the clipping device. 

There are several regression test files that are affected by this commit.  I looked at all of them. Changes appear to be progressions or visually unnoticeable.  Files are

Bug688807.pdf
Bug689918.pdf
Bug690115.pdf
Bug690206.pdf
Bug690535.pdf
Bug690709.pdf
CATX1101.pdf
CATX4135.pdf
CATX5233.pdf
CATX6508.pdf
CATX9004.pdf
IA3Z0302.pdf
IA3Z0303.pdf
as well as most of the fts_##xx.xps tests.

[base/gscicach.h base/gxshade6.c base/gdevp14.c base/gdevp14.h base/gxshade.c base/gscicach.c base/gxclrast.c base/gxshade.h]

2010-01-19T21:38:16.998845Z Hin-Tak Leung

adding comment about possible future rewrite with XGetPixel() ; no code change

[base/gdevx.c]

2010-01-19T15:48:57.559895Z Robin Watts

Attempt to fix bug 691030, regression with thin lines. This regression was
caused by revision 10391, where I pulled the rectangle special cases into
line with the more general case. Sadly, the more general case appears to be
wrong in the way it rounds lines lying on integer values.

The fix is to correct the rounding in the general case, and to keep the
rectangle special cases in line with this. Unfortunately this produces
unacceptable results with the PCL interpreter.

We therefore commit a compromise solution, whereby we make the code do the
'correct' thing (or what we believe the correct thing is) for postscript,
and leave operation alone for the other languages. We spot this by examining
the fill_adjust values. This seems to works, with the minor problem that we
still see some changes in PCL due to it sometimes using non-zero fill_adjust
to thicken lines. A visual check shows the diffs to be reasonable.

Expected Differences: MANY. But extensively checked with htmldiff and they
seem OK.

[base/gxdevcli.h base/gdevtxtw.c base/gdevtrac.c base/gdevbbox.c base/gdevmem.c base/gdevnfwd.c base/gdevddrw.c base/gxstroke.c]

2010-01-19T11:18:24.072283Z Robin Watts

Move ghostscript.vcproj from win32 to gs directory, and adjust solution file
accordingly. This serves 2 purposes; firstly, the solution now correctly
supports tag jumping (that is, the ability to click on a warning or error
and jump to that line in the file). The second is that the ghostscript
project now lives in the ghostscript directory, and hence may be usable by
people wanting to build *just* ghostscript, rather than ghostscript as a
component of GhostPDL.

Update ReadMe.txt to reflect this change, and document a known problem.

No expected differences.

[/trunk/ghostpdl/win32/ghostscript.vcproj /trunk/ghostpdl/win32/ReadMe.txt ghostscript.vcproj /trunk/ghostpdl/win32/GhostPDL.sln]

2010-01-18T11:28:29.454584Z Ken Sharp

Addendum to revision 10615. Use the *y* scale factor for computing the vertical character
advance, not the x scale which the previous commit used. Also note that the text of the
previous log said:

"as a parameter to zchar_set_cache to set the horizontal advance"

That should, of course, read vertical advance.

[psi/zfapi.c]

2010-01-18T11:16:55.954810Z Ken Sharp

Fix (FAPI - FreeType). The current FAPI implementation for FreeType ignores any vertical
advance defined in a glyph. This causes type 1 glyphs defined with an sbw (not hsbw) 
which have a vertical advance as well as, or instead of, a horizontal advance to not
advance the current point correctly.

There is a separate issue with FreeType which does not return the correct vertical 
advance which will be addressed in a separate patch.

This patch adds the vertical advance to the metrics structure and uses it as a 
parameter to zchar_set_cache to set the horizontal advance in GS for the glyph.

[psi/fapi_ft.c psi/zfapi.c psi/ifapi.h]

2010-01-18T08:41:20.191771Z Ken Sharp

Fix (FAPI). The code to 'serialise' a CFF font (that is to convert the internal GS
representation back to a stream resembling a disk font) was seriously broken when writing
a local Subrs DICT.

The offset to the Subrs DICT is stored in the Private DICT as an offset from the
start of  the Private DICT. This means it depends on the length of the Private DICT,
but the Private DICT includes that offset, so the length of the Private DICT is
dependent on the size of the offset (CFF integers use between 1 & 5 bytes depending
on their value).

The normal method for dealing with this is a process of refinement; assume that a 1 byte
representation will suffice, calculate the size of the DICT, see if that size can be 
represented in 1 byte. If not assume a 2 byte representation, recalculate the size
of the DICT, see if it can be represented in 2 bytes and so on.

It looks like the code was intended to do this, but it was in fact seriously broken
and ended up incrementing an integer for size of DICT until it became negative, and
then stored a negative (and incorrect) offset to the Subrs.

Replaced the code with a simple for loop surrounding a switch.

[psi/write_t2.c]

2010-01-14T16:38:45.881264Z Ken Sharp

Fix the syntax error accidentally committed in revision 10608 which prevented
Ghostscript from building.

[base/gdevpdtw.c]

2010-01-14T16:25:03.707208Z Ken Sharp

Fix (pdfwrite) Bug #691058 "Incorrect embedding of CIDToGIDMap for CIDFontType 2".

Previously we would embed a CIDToGIDMap for a CIDFontType 2 font (TrueType outlines) if
the font had a non-identity CIDToGIDMap, or if we were producing PDF/A output.

However the spec (PDF 1.7, Section 5.6, "Glyph Selection in CIDFonts') says that we
should *always* embed a CIDToGIDMap if the font is embedded, and never if the font is
not. 

This patch modified the CIDToGIDMap production so that we ignore the production of PDF/A
files, and instead check whether the font is being embedded. If it is being embedded
then we create a CIDToGIDMap, if it is not, then we don't.

[base/gdevpdtw.c]

2010-01-14T02:24:19.739891Z Masaki Ushizaka

Fix two warnings introduced in rev. 10603.  Signed/unsigned incompatibility.

[base/gschar0.c]

2010-01-13T21:04:09.482842Z regression


General cleanup and minor improvements of the local cluster code:
  changed timeout values
  keep logs of machine status messages
  change previous md5sum cache size
  better differentiate pdfwrite vs bitmap output errors

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/readlog.pl toolbin/localcluster/build.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2010-01-12T21:42:28.034208Z Robin Watts

Fix overallocation in bmpcmp.c that was causing out of memory errors.

[toolbin/bmpcmp.c]

2010-01-12T20:22:32.464302Z Robin Watts

Updated bmpcmp.c and htmldiff.pl. bmpcmp.c now outputs metadata about each set
of difference bitmaps (which page, bbox etc). htmldiff.pl now reads that
metadata and outputs that into the file. Some javascript hackery is used to
display the device coords of the point under the mouse pointer.

Finally, if the $parallel option is set, htmldiff will fork jobs in parallel
to try to make better use of multicore machines.

[toolbin/bmpcmp.c toolbin/htmldiff.pl]

2010-01-12T09:49:58.118243Z Masaki Ushizaka

Fix for bug #690834 & #687832

Bug #690834: text garbled in PS viewer; PDF works
 - Fixed to concatenate CIDFont FDArray font's FontMatrix when running under 'cshow' or 'glyphshow'.
 - Fixed to use correct FDArray font when concatenate its FontMatrix.
 - Changed the meaning of 'fstack.items[n].index' to keep track of FDArray font and FontMatrix.
 - Reverted the rev. 5613 which was a fix for bug #687832.
Bug #687832: (PDF interpreter) : CID Font in PDF
 - Fixed the interpretaion of W/W2/DW/DW2 value from glyph space (wrong) to 1000th of text space (correct).

Applying this patch makes some one dot differences on text in 19 files of LocalCluster test. (List is in Bugzilla #687832 comment #9).

[base/gxchar.c Resource/Init/pdf_font.ps base/gdevpdtc.c base/gschar0.c base/gxtext.h]

2010-01-11T12:08:26.301794Z Ken Sharp

Bug #691044 ""

Another problem caused by a corrupt compressed data stream, resulting in garbage data
being sent to the TrueType interpreter.

Caused when the TT interpreter is given an argument of 0 to the MINDEX operator. Rather
than flag this as an error I've chosen to simply return. This is because it seems that
a value of 0 is actually legal (stupid, but legal), and simply leaves the stack
unchanged.

[base/ttinterp.c]

2010-01-10T15:51:48.168326Z Alex Cherepanov

Don't use operator 'execute' because it resets the /command attribute
in $error dictionary. Use '.execute pop' instead. Keep 'execute' as an
operator for backward compatibility. Thanks to dakka.akka@gmail.com
for analysis of the bug. Bug 691050.

[toolbin/smoke.ps Resource/Init/gs_init.ps]

2010-01-09T23:59:33.690907Z Robin Watts

Updated version of bmpcmp. Now loads bmp, pgm, pbm, ppm files. Diffs are
always written as bmps though.

No expected differences.

[toolbin/bmpcmp.c]

2010-01-09T16:01:24.458674Z Ken Sharp

Fix a Coverity warning. We were potentially passing a NULL pointer to a routine which
would unconditionally dereference it. Fixed by taking no action if the pointer is NULL.

[base/gsgdata.c]

2010-01-08T01:17:24.694675Z Ray Johnston

Add documentation on the limitations of -sstdout=_____ where users expected
_all_ stdout I/O to be redirected, not just PS writing to stdout. Bug 691037.

[doc/Use.htm]

2010-01-07T10:53:36.539549Z Robin Watts

Changes to the MSVC makefiles to prepare for the prototype vs2005 solution
file. Firstly, we introduce an SBR symbol; if this is set when invoking the
makefile, we add a new flag to the C compiler (held in SBRFLAGS) to cause
the generation of the browse data for each source file. Next, we introduce a
new bsc build target to combine those .sbr files into appropriate .bsc ones.
The final change is enable debug builds to put their builds into debugobj
rather than obj directories.

With luck, this should cause no differences for anyone other than me.

[/trunk/ghostpdl/common/msvc_top.mak /trunk/ghostpdl/language_switch/pspcl6_msvc.mak /trunk/ghostpdl/svg/svg_msvc.mak base/msvccmd.mak /trunk/ghostpdl/xps/xps_msvc.mak psi/msvc32.mak base/msvclib.mak /trunk/ghostpdl/main/pcl6_msvc.mak]

2010-01-07T10:31:53.862753Z Ken Sharp

Update the example file. The old file used a single 'charpath pathbbox' to determine the
height of the text. It then used the 'scale' operator to draw larger text.

If the path was fixed to pixel boundaries, and the point size was low (default 15
points) this could lead to a small error which was magnified by the cumulative scale
operations.

This led to significant differences when using the FreeType font code, as it seems to 
return a hinted path which is bounded by pixel co-ordinates, unlike the regular GS
code.

The altered code scales the font and recalculates the height of the text each time
giving more accurate results. In addition a minimum size has been introduced (50 points)
for the calculation of the text height. Together these result in much closer output.

[examples/alphabet.ps]

2010-01-06T11:19:01.103028Z Ken Sharp

Fix bug #691043 "Vulnerability report : Ghostscript gs_type2_interpret null ptr
dereference (Segmentation Fault)". The problem appears to be caused by a corrupt
compressed data stream which results in garbage font data being sent to the type 2 and
under some conditions the type 1, font interpreters.

As noted these font interpreters are normally coded to be intolerant of faults, and
do not normally perform much error checking. As a result badly formed (or as in this
case, garbage) fonts can cause serious problems.

Although the null dereference is the cause of the error, this is actually caused by
interpreting the data as a font, and decrementing the font instruction pointer below
the bottom of the instruction stack. 

The patch here adopts the suggestion from the original bug reporter of checking the
pointer before the dereference, but in addition adds some checking when the
instruction pointer is decremented to see that it does not descend past the bottom of
the stack. This is because tests showed that it was possible to reach this point with
a non-NULL pointer, which was still invalid and caused a segmentation violation.

In addition the free_glyph routine has been modified to check the pgd (pointer to 
glyph data) parameter is non-NULL, and that its 'procs' member is non-NULL, before
attempting to call the free procedure. This fault was exposed by selecting the pdfwrite
device.

Although improved this is not a comprehensive fix, there are other locations where the
font instruction pointer may be incremented past the top, or decremented past the
bottom, of the instruction stack. However the FreeType font interpreter correctly
detects the problems without causing a crash, so I don't think we should expend too
much effort on rewriting our current font code to cope.

[base/gsgdata.c base/gstype1.c base/gstype2.c base/gxtype1.c]

2010-01-05T15:57:58.786575Z Ken Sharp

Revert code introduced in revision 10578. This code is no longer required since the
test in the FreeType code, which this code evaded, is no longer present when built
using the incremental interface.

[psi/fapi_ft.c]

2010-01-05T00:52:07.186738Z Alex Cherepanov

Remove duplicate call to errwrite() introduced by the rev. 10568.
Thanks to Henry for spotting this.

[base/gsmisc.c]

2010-01-04T15:09:22.066340Z Ken Sharp

Add a comment to explain the arbitrary choice of value for num_glyphs in revision 10578.

[psi/fapi_ft.c]

2010-01-04T09:27:21.029560Z Ken Sharp

FreeType interface fix. When using the incremental interface to FreeType (which in fact
we always use), Ghostscript is responsible for locating and passing the glyph
description data to FreeType, and so we don't bother to track certain kinds of data
in the FreeType structure.

However, even when using the incremental interface, FT still tests some of this data, in
particular it tests the requested glyph index against the reported number of glyphs
in the font, and aborts if the index is too large.

This patch simply sets the num_glyphs member of the FT_face structure to a large number
(65534) so that the internal FreeType test is successful, and we don't have to bother
with the record-keeping that would be required to keep this member updated when fonts
change.

[psi/fapi_ft.c]

2010-01-03T01:07:12.832443Z Alex Cherepanov

Fix error recovery code that messed up operand stack trying to break out
of post table processing when the offset to the glyph name is beyond the
table length. Bug 690837.

[Resource/Init/gs_ttf.ps]

2010-01-02T18:48:40.508429Z Alex Cherepanov

Remove description of -dIgnoreTTEncoding flag from the documentation.

[doc/Use.htm]

2010-01-02T18:45:15.635704Z Alex Cherepanov

Implement symbolic glyph mapping as described in PDF 1.7. Use it for TrueType
fonts with symbolic flag set or having no encoding entry.
The flag -dIgnoreTTEncoding is removed because symbolic fonts always do this
now and non-symbolic fonts should never ignore encoding.
Bug 691035, customer 220.

The new spec includes cmap 3,0 in the supported list. We discovered this
before but didn't use cmap 3,0 as a first choice. PDF 1.7 is not clear about
the choice between symbolic and non-symbolic branches. Current algorithm
is based on a few experiments with AR 8.

The patch causes rendering differences in comparefiles/keyboard.pdf
A few undefined characters change from boxes to empty space.
Current rendering of undefined characters in Ghostscript doesn't match
Adobe Acrobat and should be revised.

[Resource/Init/pdf_font.ps Resource/Init/gs_ttf.ps]

2009-12-30T17:30:30.315764Z Alex Cherepanov

Remove C++ comments (//) and commented out code because this is not compatible
with old compilers and breaks our coding standard. Comments were introduced
by rev. 9664 and 9778. Bug 691032.

[contrib/gdevcd8.c psi/iscannum.c]

2009-12-30T15:06:40.609490Z Alex Cherepanov

Add a check whether the entry in post table of TrueType font crosses
the end of the table. Fill the rest of the table with /.notdef and
continue. Bug 691031.

[Resource/Init/gs_ttf.ps]

2009-12-29T22:18:01.420560Z Alex Cherepanov

Use safer function vsnprintf() instead of vsprintf() for error reporting.
Truncate long messages, issue a warning, and continue. Bug 690829.

[base/lib.mak base/gsmisc.c base/stdio_.h]

2009-12-29T01:17:48.171480Z Alex Cherepanov

Remove stage 2 from seticcspace() and a corresponding PS procedure because
it's no longer needed. Since rev. 10563 the string data source is converted
to reusable stream without a call-out. Bug 690828.

[psi/zcolor.c Resource/Init/gs_cspace.ps]

2009-12-28T07:03:59.416178Z Alex Cherepanov

Don't use long and buggy call-out process to convert a string to a
reusable stream. Do it in 3 lines of C code. Bug 690828.

DETAILS:
The patch fixes string data source handling but leaves most of call-out
machinery in place. Clean-up will be done as anoter commit to separate
material and cosmetic changes.

[psi/zcolor.c psi/zfrsd.c psi/zfrsd.h psi/int.mak]

2009-12-27T15:58:42.012990Z Alex Cherepanov

Assume /FirstChar is 0 and /LastChar is 255 when they are not defined, and
issue a warning. Bug 691022.

[Resource/Init/pdf_font.ps]

2009-12-27T15:35:32.126971Z Alex Cherepanov

Consider fonts without font stream and with wrong or missing /Subtype
attribute as Type 1 fonts. Bug 691023.

[Resource/Init/pdf_font.ps]

2009-12-26T22:21:45.513158Z Alex Cherepanov

Fix a compile error on UN*X platforms introduced by the previous commit
(rev. 10558).

[base/gp_psync.c]

2009-12-26T20:05:44.539107Z Alex Cherepanov

Fix a Coverity warning about checking after dereferencing.
In this case dereferencing means &((foo *)0)->bar, which is harmless.

[base/gp_psync.c]

2009-12-26T18:32:35.542626Z Alex Cherepanov

Move checking gstate for 0 immediately after allocation. Fix a Coverity
warning about checking after dereferencing.

[base/gsstate.c]

2009-12-26T18:22:04.265168Z Alex Cherepanov

Don't dereference a pointer before checking it for NULL. Fix a Coverity
warning about checking after dereferencing.

[base/gxdhtserial.c]

2009-12-26T01:35:11.234623Z Alex Cherepanov

Include stdlib.h for a prototype for abs().

[base/gdevpdtt.c]

2009-12-26T01:13:12.801372Z Alex Cherepanov

Fix a case where a pointer is first dereferenced and then checked for 0.

[base/ttobjs.c]

2009-12-26T00:48:30.642019Z Alex Cherepanov

Clear Coverity warnings about unreachable code. Fix incorrect error
processing in some contributed drivers. Also remove a spurious *.orig file.

[contrib/lips4/gdevl4v.c.orig contrib/lips4/gdevl4v.c contrib/eplaser/gdevescv.c contrib/lips4/gdevl4r.c]

2009-12-24T00:33:05.486056Z Ray Johnston

Fix detection for nearing/passing command list buffer limit to allow for
the condition when the pointer is past the limit (which is NOT the end
of the buffer, but is only a warning). Change this variable name to
'warn_limit' to avoid confusion with the 'limit' used in most other
buffer management areas, such as streams. Bug 691016.

[base/gxclrast.c]

2009-12-23T21:12:34.206998Z Robin Watts

Add new assert_.h header file. Convert existing code to use it.

[contrib/gdevcd8.c /trunk/ghostpdl/pl/pldebug.h base/assert_.h contrib/pcl3/eprn/mediasize.c contrib/lips4/gdevlprn.h contrib/pcl3/eprn/eprnrend.c]

2009-12-22T23:32:30.888745Z regression

Remove -dNOOUTERSAVE and related commands from command line and optionally
read in list of fast to process files (so that long commands can be
processed first).

[toolbin/localcluster/build.pl]

2009-12-21T16:03:38.968428Z Ken Sharp

Fix (pdfwrite) Bug #691009 "Regression: 14-01.PS fails with pdfwrite". revision 10297,
a fix for pdfwrite involving composite fonts with type 3 descendants, did not check a
return value. This could cause a segment fault later, if a type 0 font was invalid.

The Genoa file 14-01.ps specifically runs tests with invalid type 0 fonts to check the
behaviour under error conditions and appears to be the only test file we have which
does this.

[base/gdevpdtt.c]

2009-12-21T07:20:23.809940Z Ralph Giles

Revert c10520 which causes problems with the MSVC build.

$(CC_) enforces 'ansi' C under msvc32.mak, disabling any Microsoft
extensions. This often causes problems with 3rd party libraries
which try to take advantage of those extensions.

This means that the -fPIC flag is again not propagated in the GCC
build; this is just to unbreak the build until I can test a different
solution which works on both platforms.

[base/libtiff.mak]

2009-12-20T19:54:00.274659Z Alex Cherepanov

Fix a Coverity warning: comparing array against NULL is not useful.

[base/gxclthrd.c]

2009-12-20T19:43:10.432199Z Alex Cherepanov

Fix a Coverity warning about an expression with undefined order of evaluation.

[contrib/gdevbjca.c]

2009-12-20T18:54:08.195262Z Alex Cherepanov

Fix a Coverity warning about an expression with undefined order of evaluation.

[contrib/pcl3/eprn/eprnrend.c]

2009-12-20T14:24:39.934442Z Alex Cherepanov

Fix Coverity warnings about unchecked return code.

[base/gxchar.c]

2009-12-20T06:52:50.539169Z Alex Cherepanov

Fix Coverity warnings about unchecked return code.

[base/gsptype1.c]

2009-12-19T17:14:09.025653Z regression

Minor improvements:

skip.lst is now processed by compare.pl instead of build.pl, so tests
to be skipped will be run, just not reported.

Store the archive count in the md5sum.archive so the report email will
be accurate.

Treat indeterminate errors (mostly timeouts) the same as indeterminate
md5sums (i.e. report them below the fold).

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/cachearchive.pl toolbin/localcluster/compare.pl]

2009-12-19T01:16:49.970378Z Alex Cherepanov

Fix an array overrun in zsethalftone5() caused by an unchecked error code
when the number of colorants exceeds the current implementation limit;
throw a /limitcheck error instead. Also fix an unrelated Coverity warning
about unchecked return value from dict_int_param(). Bug 691001.

[psi/zht2.c]

2009-12-18T22:24:19.154314Z Ralph Giles

Update some obsolete gs_throw() calls. Bug 691010.

This code seemed to be using an early version of the gs_throw() error
reporting macros, passing an undefined -997 error code, a redundant
__func__ error message, and expecting the macro to break flow control.

This commit updates it to the modern version's behaviour.

[base/gdevdbit.c]

2009-12-18T21:14:17.100541Z Ralph Giles

Add a missing header to ensure delaration and definition match
for mem_mono_strip_copy_rop(). Fixes a warning in the gcc build.

[base/lib.mak base/gdevmr1.c]

2009-12-18T18:32:46.014514Z Ralph Giles

Add .libs and autom4te.cache to the exclude list for clusterpush.

Builds which generate .deps directories also generally create the
other two. The autom4te.cache files aren't necessarily large but
aren't appropriate to copy to another system since they represent
details of the local build environment.

[toolbin/localcluster/clusterpush.pl]

2009-12-18T16:24:12.002354Z Marcos H. Woehrmann

Added .deps to the exclude list for clusterpush.pl.

[toolbin/localcluster/clusterpush.pl]

2009-12-18T07:04:10.684226Z Ralph Giles

Add graphics library support for raster operations and extended halftone
methods to the default gcc build.

This allows ghostpcl to build linked against the default 'so' build of
the gs library. On my Linux x86_64 this increases the size of the library
by 29K. While significant, I prefer this to the maintenance burden of
the two different configurations.

[base/Makefile.in]

2009-12-18T06:37:02.606724Z Ralph Giles

Derive the libtiff compiler line from $(CC_) instead of $(CC) so
the common flag set is propagated.

Without this, additional options, like XCFLAGS=-fPIC aren't used when
compiling the libtiff source files.

[base/libtiff.mak]

2009-12-18T05:23:14.353404Z Henry Stiles

Export the the type 42 component parser procedure for pcl, no expected
differences.

[base/gxfont42.h base/gstype42.c]

2009-12-18T01:38:29.130442Z Ralph Giles

And the 'nogc' allocator to the default gcc build.

This allows ghostxps to build linked against the default 'so' build of
the gs library, simplifying some build options. The code size increase
is negligible.

[base/Makefile.in]

2009-12-17T20:14:08.344945Z Robin Watts

Fix for bug 690620. Original patch from HenryS. This adjusts rectangular
fills to more closely match that used by Acrobat v8.

DETAILS:

This patch updates the rectangle rendering to follow the mathematical
description of scan conversion more closely. It also includes special case
code to emulate the peculiarities of Adobe Acrobat 8.

A specific test is used to ensure that zero width/height clips are handled
correctly. I am not entirely convinced that relying on the inner bbox is
mathematically correct, but in the tests I've done (see clipbug.ps on the
bug, it seems to be enough to match Acrobat).

[base/gsdps1.c]

2009-12-17T18:13:48.602966Z regression

Cache the previous revisions crc values to improve compare.pl performance.

Also remove the no longer needed splitjobs.pl from the repository.

[toolbin/localcluster/splitjobs.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/cachearchive.pl toolbin/localcluster/compare.pl]

2009-12-17T17:57:14.753910Z Robin Watts

Update the arguments passed to ghostscript by htmldiff.pl so that they
more closely match those used by the localcluster.

DETAILS

localcluster uses "-dNOOUTERSAVE -dJOBSERVER -c false 0 startjob pop -f"

The use of -dJOBSERVER changes the output given for some of the ps3cet files
due to having different stack contents at the outer level.

This seems to eliminate most of the differences between htmldiff results
and local cluster results. Those that remain seem to be caused by differences
in the output of devices (htmldiff uses bmp, wheras the localcluster uses
pgm/pbm/etc).

One minor point; the use of -dJOBSERVER is defined in doc/Use.htm
to require input to be supplied via stdin. I originally wrote the code to
do this, but it seems this gives problems on Windows for some files
(for reasons that are beyond my comprehension at this time). Accordingly,
I've swapped back to supplying the filenames on the command line and
everything seems to be fine.

If this presents a problem on platforms other than windows, simply
edit the value of $redir as shown at the top of the file and redirection
will be used. If this turns out to be necessary, it may be possible to
automate this.

[toolbin/htmldiff.pl]

2009-12-17T15:24:07.353413Z regression

Minor cleanup/improvement of local cluster code.

DETAILS:

compare.pl: ignore missing archive directory

clustermaster.pl: rather than pausing 60 seconds after the first compile
error is detected wait until all nodes report compile fail or 60 seconds
has elapsed.  in the former case don't bother to send abort to nodes.

build.pl: add support for skip.lst (lists specific tests to skip)

add tests_private/customer_tests to test lists

force tests_private/customer_tests to be dispatached earlier
in the run (some of these tests take a long time and often
the regression run is waiting for one or more to be completed).

clusterpush.pl:  remove cluster_command.run before syncing

run.pl: more intelligently report compile fails.

save the previous non-user build of gs to be used for the following user
builds that don't build gs (previously whatever gs build as last build
was used).

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2009-12-16T18:46:20.783419Z Robin Watts

Fix for incorrect bbox test in bmpcmp.

bmpcmp would correctly assess the changed region, but then incorrectly accept
changes restricted to a single row or column as not being changes at all.

DETAILS:

This resolves most of the differences between the results given by htmldiff.pl
and those given by the regression cluster. Some remain, but they are due (I
think) to a) different invocations of ghostscript, or b) differences in
device output (pgmraw vs bmp16m).

[toolbin/bmpcmp.c]

2009-12-16T18:33:40.102435Z Robin Watts

Broken fix for incorrect bbox test in bmpcmp; please ignore this revision
and use 10507 instead.

bmpcmp would correctly assess the changed region, but then incorrectly accept
changes restricted to a single row or column as not being changes at all.

[toolbin/bmpcmp.c]

2009-12-16T17:40:49.399642Z Robin Watts

Improved version of htmldiff.pl: New HTML file started every 100 or so sets
of image differences (configurable). This should stop browsers grinding to a
halt. Improved reporting of conversion errors.

[toolbin/htmldiff.pl]

2009-12-15T22:14:58.866880Z Alex Cherepanov

Increase the limit on the number of color components to 12. A file with
9 components has been found in the wild, add 3 more for a small reserve.
Bug 691002.

[base/gsccolor.h]

2009-12-15T14:34:56.554574Z Alex Cherepanov

Fix a botched use of references where a pointer to a reference in a
PostScript VM was used as a temporary variable. Bug 690828.

[psi/zcolor.c]

2009-12-15T09:55:23.729025Z Ken Sharp

Fix (FAPI) : Silence a compiler warning

Details
Flagged by Marcos, the variable 'ep' was unused and raised a gcc warning.

[psi/zfapi.c]

2009-12-13T01:31:59.081596Z Alex Cherepanov

Accept ASCII85 stream that ends with bare '~' in PDF files for compatibility
with Acrobat Reader. Add /PDFRules ASCII85Decode filter parameter to select
between PS and PDF logic. Bug 690976, customer 870.

[base/sa85d.h Resource/Init/pdf_base.ps base/sa85d.c psi/zfdecode.c]

2009-12-12T23:05:18.157328Z Ray Johnston

Fix RasterOp texture rendering from uninitialized memory (past end of buffer)
when the texture was 'expanded' and the unexpanded texture had repitions in y.
Bug 690299.

DETAILS:

The expansion was only needed if the device color space was RGB, but not 8 bit.
This doesn't really give valid output anyway for RasterOps, but at least
we no longer reference past buffer bounds (see the 'trow' calculation in
gdevmr8n.c).

[base/gdevdrop.c]

2009-12-12T22:39:17.759602Z regression

Added abort option to clusterpush.pl (i.e. 'clusterpush.pl abort') to
abort current job and remove any jobs queued for a user (it is possible
to abort/remove jobs for other users, but I'll leave that undocumented).

Also partially added support for mupdf regression testing.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl]

2009-12-12T18:25:25.212987Z regression

Added --max-size=2500000 to avoid sending very large files.

Divide queueing and syncing into two steps, so that it's possible
to ^C if you decide the files being transmistted are incorrect.

[toolbin/localcluster/clusterpush.pl]

2009-12-12T03:46:55.487466Z Hin-Tak Leung

Coverity warning #4475, uninitialized value

[base/gdevpxut.c]

2009-12-12T03:45:55.759446Z Hin-Tak Leung

Coverty warning #1158, unchecked return values

[base/gdevpx.c]

2009-12-12T03:45:13.363455Z Hin-Tak Leung

Coverity warning #2555, removing unused header

[base/gdevpx.c]

2009-12-12T03:43:49.383201Z Hin-Tak Leung

treat depth 15 the same as depth 16 in get_bits_rectangle()

It looks to be 'just work' (or no worse than depth 16) by treating depth 
15 the same as depth 16 in get_bits_rectangle. The pcl files in the original report
works now; but a pxl file shows some visual artifects (and different one) at depth
15, 16 and will be filed separately.

This fix fix bug 690328 (make X11 device continue for those pcl files; caveate 
visual artefacts for at least one pxl file)

[base/gdevx.c doc/Devices.htm]

2009-12-12T00:28:26.868635Z Ray Johnston

Fix hang condition due to pointer comparison, bug 690638.

DETAILS:

The clist buffer management mostly checked the amount of data in the buffer
by computing the difference between the limit and the current pointer. This
patch fixes the places that computed a new pointer of the desired amount
plus the current pointer and compared to the limit. If this overflowed
the register, then the sum was less than the (unsigned) limit pointer.

[base/gxclrast.c]

2009-12-11T19:18:57.300388Z Alex Cherepanov

Fix incorrect calculation of the operand stack base (pdfemptycount) in PDF
interpreter, which caused incorrect processing of scn operator. Bug 690977.

[Resource/Init/pdf_draw.ps]

2009-12-10T03:29:32.317033Z regression

Removed bitrgb and pgmraw from pcl regression tests.

Fixed a bug where failed compiles would cause a job restart loop.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/run.pl]

2009-12-09T17:24:34.115310Z Ken Sharp

Fix (pdfwrite) : regressions with revision 10474

Details
Revision 10474 unexpectedly caused a number of regressions resulting in unreadable
PDF files. This revision changes the way we deal with the indeterminacy caused by 
not checking the return value. In this case if the return value is an error we *set*
the members field of the gs_glyoh_info struct to 0 and allow the code to test the
value

[base/gdevpdtt.c]

2009-12-09T15:32:27.320916Z Ken Sharp

Fix (pdfwrite) : Unchecked return value causing indeterminisms

Details
Bug #690762 ""
Reported and investigated by Marcos using Valgrind. The return value from a glyph_info
method was not checked before accessing the members of the 'gs_glyph_info' structure. If
an error occurred the fields of the structure were potentially not initialised, leading
to indeterminate results.

Modified to check the return value properly.

[base/gdevpdtt.c]

2009-12-08T16:09:01.319365Z Ken Sharp

Fix (FAPI) : Handle Type 42 fonts with CharStrings dictionaries with real PS glyphs

Details
The FAPI code regarded a Type42 font which contained a CharStrigns dictionary where the
contents of the dictionary were not simply integers but actual glyph descriptions to be
an invalid font. Regular Ghostscript, Jaws and Acrobat Distiller happily accept such
bizarre fonts and correctly render the glyphs in them, even the PostScript ones.

Modified FAPI to execute the glyph descriptions in this case rather than raising an
error.

[psi/zfapi.c]

2009-12-08T07:52:26.208006Z Ralph Giles

Revert remaining changes to the clusterpush script inadvertently 
included in r10461. This version is now identical with the version
in r10435. In particular, the more sophisticated gs/ghostpdl detection
which works for branches and custom-named directories is restored.

[toolbin/localcluster/clusterpush.pl]

2009-12-08T07:41:12.811962Z Ralph Giles

Update local cluster documentation to reference the 'regression' account
instead of 'marcos' and other minor cleanup.

[toolbin/localcluster/setupcluster toolbin/localcluster/clusterpush.pl toolbin/localcluster/readme toolbin/localcluster/clusterpush.txt]

2009-12-08T07:25:03.670058Z Ralph Giles

Use the new 'regression' username in the clusterpush script.

This corrects what looks like an inadvertent commit of an older version
in r10461.

[toolbin/localcluster/clusterpush.pl]

2009-12-08T06:31:51.930815Z Alex Cherepanov

Fix a Coverity warning. Don't assign a value to a variable if it isn't used.

[psi/imainarg.c]

2009-12-08T03:33:05.781180Z Alex Cherepanov

Fix Coverity warnings caused by a recurring error in opvp driver where
'if (i > sizeof(foo)/sizeof(*foo)) ...' was used to prevent out-of-bounds
access to foo[i] .

[contrib/opvp/gdevopvp.c]

2009-12-08T03:32:18.888688Z regression

Improve the node failure job reallocation logic.

Details

Since the cluster jobs are now distributed to the cluster nodes in
batches a node failure no longer requires a job restart.  Instead the
jobs that had been sent to the failed node are put back into the pending
queue and sent to the remaining node(s).

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2009-12-08T00:42:59.473070Z Alex Cherepanov

Fix a Coverity warning. Avoid a FILE pointer leak in an unlikely
case when gs_main_init2() fails.

[psi/imainarg.c]

2009-12-07T15:49:53.218004Z Ken Sharp

Fix (FAPI) : Ignore some TrueType faults

Details
The file Bug689516.pdf contains TrueType fonts with problems, one of the fonts has 
multiple fatal errors:

1) GLYF and LOCA tables contain more than NumGlyphs glyphs, and some of these
glyphs are used.
2) At least one glyph uses more points than the declared maxPoints value.
3) The FPGM is invalid.

Acrobat ignores these but elides the glyphs with problems, GS's internal TT rendering
engine issues a warning and also elides these glyphs.

Modified the FreeType FAPI code to catch certain classes of error and emit slightly
different, possibly slightly more informative, warnings, and continue, ignoring the
faulty glyph(s).

[psi/fapi_ft.c]

2009-12-07T05:46:36.982240Z Alex Cherepanov

Fix a Coverity warning. Add missing assignment to 'code' variable. The later
use of 'code' in the conditional expression indicates that this was the
author's intention.

[base/gsfont.c]

2009-12-06T19:12:08.897785Z Alex Cherepanov

Fix a Coverity warning. Add missing assignment to 'code' variable. The later
use of 'code' in the conditional expression indicates that this was the
author's intention.

[base/gxttfb.c]

2009-12-06T14:55:58.088044Z Alex Cherepanov

Fix a Coverity warning. Check the return code from sget_variable_uint()
in image4 serialization.

[base/gximage4.c]

2009-12-06T02:21:36.356914Z Alex Cherepanov

Fix a Coverity warning and improve readability. Don't define a local variable
with the same name as a function argument.

[psi/ziodevsc.c]

2009-12-06T00:56:38.018707Z Alex Cherepanov

Fix a Coverity warning and improve portability. Don't access sequential
members of a structure as an array.

[psi/zht1.c]

2009-12-05T23:10:32.160743Z Alex Cherepanov

Fix a Coverity warning. Change the logic in obj_cvs() to handle all possible
combinations and avoid a potential SEGV.

[psi/iutil.c]

2009-12-05T19:21:42.203093Z Alex Cherepanov

Fix a Coverity warning and a potential SEGV caused by a wrong pointer
checked for NULL after memory allocation.

[psi/zfcid1.c]

2009-12-05T17:27:01.175245Z Alex Cherepanov

Fix a Coverity warning. Remove dead and commented out code that didn't
change since April 2000, rev 324.

[psi/zfcmap.c]

2009-12-04T15:52:08.152428Z Ken Sharp

Fix (FAPI) : empty glyphs causing problems after revision 10434

Details
As noted by SaGS in the thread for bug 690448, the revision for 10434 does not 
properly cater for 0 length glyphs, and instead makes such glyphs the same as the next
(in GLYF table) non-empty glyph.

Also as pointed out by SaGS, the glyph length is already calculated so we don't need to
repeat the performance with the LOCA table anyway. Modified the code to use the 
pre-calculated glyph lengths instead of recalculating them incorrectly.

[psi/zfapi.c]

2009-12-04T15:38:03.727531Z Ken Sharp

Fix (FAPI) : TT tables > 64Kb not read properly.

Details
If, while reading a TrueType table for serialisation, we ran off the end of an sfnts
string, we switch to the next string, and carry on reading the data. However, we did not
update the destination pointer leading to corruption of the already processed data and 
general corruption of the table.

We now update the destination pointer before continuing to write data to it.

[psi/zfapi.c]

2009-12-04T03:51:10.377640Z Alex Cherepanov

Rearrange JP2 color space processing code to facilitate experiments with
enumerated color spaces.

[Resource/Init/pdf_draw.ps]

2009-12-04T00:33:04.330450Z Robin Watts

Extend ghostscript graphics library with the capability to handle different
start, end and dash caps.

The existing gs_setlinecap function sets all 3 caps in lockstep, so no change
with current code. New functions gs_setlinestartcap, gs_setlineendcap,
gs_setlinedashcap set the different cap styles.

The dashing code now leaves segment notes in the output path to inform the
choice of which caps to use. The stroking code is updated to honours these
notes.

gxclpath.c and gdevvec.c assume that all caps are the same as start_cap.
Check that this is valid.

[base/gsstate.c base/gxclpath.c base/gxline.h base/gxpdash.c base/gxpath.h base/gdevpdtt.c base/gsline.c base/gdevvec.c base/gdevpdfg.c base/gsline.h base/gxstroke.c base/gxclrast.c]

2009-12-03T19:21:12.315688Z Marcos H. Woehrmann

I missed a file that should have been part of the r10440 commit.

[toolbin/localcluster/clusterpull.sh]

2009-12-03T19:14:12.694527Z Alex Cherepanov

Fix a Coverity warning by removing redindant checks. The 'pie' pointer cannot
be null here because it is dereferenced earlier.

[psi/zimage.c]

2009-12-03T17:30:38.929684Z Robin Watts

Remove stray (incorrect) initialisation. This removes a "removing const"
warning.

[base/gdevpdfe.c]

2009-12-03T16:18:00.535689Z Marcos H. Woehrmann

Improved cluster reliability (automatically reset stale nodes, move
watchdog from cron to run.pl, check for periodic transfer, etc.).

[toolbin/localcluster/clustermonitor.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/run.pl]

2009-12-03T06:08:39.915454Z Ray Johnston

Add argument list and 'minst' address to -Z: debugging report to assist in tracking
cluster test logs (to see which, if any, jobs start but don't finish).

[psi/imain.c psi/imainarg.c]

2009-12-03T00:02:30.276576Z Hin-Tak Leung

send images with Interpolate=true back to gx_default.

comparefiles/148-01.ps have a few Type 1 images with
<<Interpolate true>> are not rendered with Interpolate.

Since pxlcolor/pxlmono cannot do Interpolate within, 
and has no code to do such thing, the correct solution 
is simply detect such images and use gx_default_*. Fixes bug 690970.

[base/gdevpx.c]

2009-12-02T19:57:05.281734Z Marcos H. Woehrmann

Improved logic in clusterpush.pl to detect if running from a gs or ghostpdl director.

[toolbin/localcluster/clusterpush.pl]

2009-12-02T14:20:41.078998Z Ken Sharp

Fix (FAPI): error in revision 10433

Details
Accidentally committed a version where the calculation of the initial offset to test
against was the end of the LOCA table, instead of the theoretical maximum size of the
GLYF table.

[psi/zfapi.c]

2009-12-02T14:13:44.401916Z Ken Sharp

Fix (FAPI) : FAPI code not expecting unsorted LOCA/GLYF tables

Details
The FAPI code needs to copy the GLYF data, to do this it needs to know how long the 
data is. The only way to do this is to consult the LOCA table which gives the offset
to each glyph in the GLYF table. Subtracting the start of the glyph from the start of
the next glyph in the GLYF table gives the length.

The existing code assumed that the GLYF (and therefore LOCA) tables was ordered, that is
that glyph 1 followed glyph 0 and so on. There is no such restriction, glyphs can
appear in any order, so the simple subtraction caused incorrect glyph lengths, which
could lead to truncation of the data and caused errors.

We now pick up the offset of the glyph we want from the LOCA table, and then search the 
entire table to find the glyph whose offset is nearest (but after) the offset of the
glyph we want.

[psi/zfapi.c]

2009-12-02T07:00:16.393155Z Ray Johnston

Fix vertical positioning of interpolated images that caused images to be moved
down, possibly past the end of the band. An extra multiplication by -1 was the
culprit. Bug 690885, customers 531 and 850.

[base/gxiscale.c]

2009-12-01T19:39:06.587717Z Robin Watts

Fix dropouts seen with thin lines by using the method described in bug 687721,
namely, that of extending the trapezoids filled by a small triangular region
at each end.

Local cluster testing shows 66 changes, of which only 20 or so are real.
Of these, most are clearly improvements, and the rest are neutral.

[base/gdevddrw.c]

2009-12-01T19:10:35.168567Z Ralph Giles

Update the clustermonitor cgi script to read the new combined queue 
file for pending jobs.

[toolbin/localcluster/clustermonitor.cgi]

2009-12-01T19:08:27.833775Z Ralph Giles

Update the clustermonitor cgi script to return regression results.

This makes use of the CGI module to parse an optional 'report' query
parameter, which if present, returns a specific regression result
instead of the default json dashboard status. Current it only supports
svn jobs, not custom runs submitted through the clusterpush script.

Also cleans up the the paths to use a $clusteroot variable for the 
prefix.

[toolbin/localcluster/clustermonitor.cgi]

2009-12-01T18:36:08.279176Z Robin Watts

Factor out the miter checking code into a single function rather than having it
repeated 3 times.

Add a test to the extracted code to spot the case where the cdelta's are too
small to be reliably used to calculate the correct miter point. In such cases
revert to using the raw vectors suitably scaled.

Testing reports 69 changes in the regression files, none of which can be
reproduced locally. This fixes bug 690098.

[base/gxstroke.c]

2009-12-01T18:08:58.973794Z Alex Cherepanov

Fix a Coverity warning and a potential array overrun in obj_cvp().

[psi/iutil.c]

2009-12-01T16:04:36.569081Z Marcos H. Woehrmann

Another clusterpush.pl change that was lost, should have been part of r10421.

[toolbin/localcluster/clusterpush.pl]

2009-12-01T15:37:15.738865Z Marcos H. Woehrmann

Fixed localcluster/clusterpush.pl to work with casper3.

[toolbin/localcluster/clusterpush.pl]

2009-12-01T09:02:10.394257Z Marcos H. Woehrmann

All local cluster jobs are now queued (instead of just user jobs).
This eliminates a race condition that could have occured if the
ghostpdl/ghostscript repository is updated after the cluster master
initiates a cluster run but before the nodes perform the svn update.
As a side-effect of this change svn commit jobs are not longer given
priority over user jobs.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl]

2009-12-01T03:40:54.743929Z Alex Cherepanov

Fix a Coverity warning about unchecked negative return and a possible
access to an array at a negative position.

[psi/zupath.c]

2009-11-30T23:37:23.019948Z Michael Vrhel

Fix for bug 690218.   If the SeparationOrder was specified, then we should only allocate buffer space for those colorants.  See devn_put_params for details on this.  Right now, the PDF14 device will always include CMYK.  A future optimization is to be able to NOT have those included in the bufferallocations if we don't specify them.  In that case it would then be possible to output 8 separations at a time without using compressed color.  Note that if SeparationOrder is not specified, the number of colorants used in the pdf14 device buffer allocations is equal to the number of colorants in the document up to a maximum of 64.

[base/gstrans.c]

2009-11-30T23:12:19.025235Z Marcos H. Woehrmann

Change from batch job distribution system to polled system.

[toolbin/localcluster/splitjobs.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl]

2009-11-30T22:57:24.661785Z Ray Johnston

Fix for segfault when image 'clues' are accessed during a GC after a
restore has erased (set to zero) the contents. Bug 690915.

DETAILS:

As described in gx_image_free_enum comment, the penum may not be freed if
it is at a higher (outer) save level, so the contents (including the
"clues" are zeroed, but the ENUM in image_enum_enum_ptrs (gxipixel.c)
did not check for this. This was indeterministic since it depended on
when the GC scan ran.

[base/gxipixel.c]

2009-11-30T20:34:48.913220Z Henry Stiles

Remove an unnecessary diagnostic debug printf which should not have
been checked in.  No expected differences.

[base/gsalloc.c]

2009-11-30T16:40:08.309112Z Henry Stiles

New procedure to dump memory chunks with less detail.  This will be
used by the non garbage collecting client languages to print memory
leak information at the end of jobs.  No expected differences.

[base/gsalloc.c]

2009-11-30T09:05:26.245478Z Ken Sharp

Fix (FAPI): Can't handle FontBBox as 't_mixedarray'

Details
The FAPI code extracts the entries in the FontBBox, but only catered for the internal
GS 't_array' or 't_shortarray' types, we can also get the 't_mixedarray' type.

[psi/zfapi.c]

2009-11-30T02:47:11.189285Z Hin-Tak Leung

updating begin_image and fill_mask to cope with white/black+transparent

Apparently not all black/white+transparent uses the copy_mono code path, which
has been recently updated to do white-on-mask. There are two other ways
black/white+transparent can pass through pxl - in begin_image() (as part of an
RGB/Gray image with an alpha channel) which is most of the files in bug
690947, and fill_mask() which has no known cases yet.

Note the new addition to fill_mask() and begin_image() is not identical to that
in copy_mono() in the case of the drawing color being white - fill_mask() and
begin_image() both try to draw white on the blacks of a black/white mask and
transparent on the white, whereas copy_mono() draws white on the white and draw
transparent on the opposite (set to black but really transparent), so the
source is inverted in fill_mask() and begin_image() compared to copy_mono().

[base/gdevpx.c]

2009-11-30T02:41:19.062276Z Hin-Tak Leung

set ROP to paint through character glyphs (pattern tiles).

Apparently complete pattern tiles are sent as a character in a custom symbol
font (rather than small rectangles for incomplete tiles), thus allowing re-use.
The code set the fill color but never set ROP to "paint with brush color" thus
glyphs appears as black. This patch set the ROP3 operation to paint through
complete pattern tiles. Fixes bug 690949, also some of the problems in bug
690585 (for ghostpdl).

[base/gdevpx.c]

2009-11-30T02:36:44.876347Z Hin-Tak Leung

fix typo introduced in r5556

It appears that 'r5556: Added macros for assertions' introduced a typo.
There is no known effect from this typo, except possibly stroke color 
not being set where it should.

[base/gdevpx.c]

2009-11-30T02:30:52.552359Z Hin-Tak Leung

another ID to name update

[doc/AUTHORS]

2009-11-30T02:29:45.556262Z Hin-Tak Leung

avoid setting join to invalid value; issue found in bug 690585

[base/gdevpx.c]

2009-11-29T02:43:31.722821Z Ray Johnston

Fix to correct mask offsets (bit order) for big_endian as well as sharing this
array for the various devices. Bug 690954.

[base/gdevtsep.c]

2009-11-28T10:59:10.646748Z Ken Sharp

Fix (FAPI) : segmentation violation with Multiple Master fonts

Details
When extracting the $Blend procedure from a Multiple Master font, if the procedure
contained a name object, there was a typo which used an uninitialised variable
instead of the extracted name element to convert the name to a string.

Fixed by using the correct name object instead

[psi/zfapi.c]

2009-11-28T04:39:43.983110Z Marcos H. Woehrmann

Changes to accomodate the transition from casper2 to casper3.

[toolbin/localcluster/clustermonitor.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/clusterpull.sh toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl]

2009-11-27T19:15:08.980517Z Ray Johnston

Fix dereference of NULL when target device passed to gx_forward_put_params
was NULL. This occurred with the standalone 'bbox' device.

[base/gdevnfwd.c]

2009-11-27T19:07:02.726122Z Ray Johnston

Fix for Device N capable device segfaults (psdcmyk, tiffsep, tiffsep1, ...) that use
the gdevdevn.c parameter handling. A 'restore' could free up separation names but
the pointers in the device were unchanged. Bug 690956.

[base/gdevdevn.c]

2009-11-27T14:19:19.911778Z Ken Sharp

Fix (FAPI) : invalid fonts resulting in errors

Details
The files Adobe Garamond CE.pdf, Bauhaus CE.pdf and Futura CE.pdf alll contain subset CFF
fonts, and use the same (ecaron) glyph. In all three cases the font uses the deprecated
'SEAC' endchar construction and in all three cases at least one component glyph is not
present in the font.

Probably the producer didn't realise the component glyphs were required amd did not 
include them in the subset.

As a result the FAPI code properly rasied an error, sicne the required glyph is not 
presemt. Adobe Acrobat (of course) ignores the error and simply elides the missing 
glyph. Regular Ghostscript has at some time been coded to do the same and emit a 
warning.

For compatibility this 'feature' has been implemented in  the FAPI interface.

[psi/fapi_ft.c]

2009-11-27T00:55:09.262519Z Robin Watts

Part 2 of commit 10391. Reinitroduce special cases in a way that doesn't change
the output. A clustertest shows 33 differences overall, but testing of those
files on my local machine shows them all to be identical.

This fixes bug 687666.

[base/gdevddrw.c]

2009-11-26T20:48:31.400887Z Robin Watts

First of a 2 part commit, fixing the special case horizontal/vertical
rectangle code in the thin line code in gdevddrw.c, as it doesn't match
the general case. This will cause many differences in the regression tests.

Part 2 will commit a fixed version that will hopefully show none.

[base/gdevddrw.c]

2009-11-26T16:53:25.042900Z Ken Sharp

Removed commented out code that should not have been left behind in revision 10389

[psi/zfapi.c]

2009-11-26T16:44:03.688193Z Ken Sharp

Fix (FAPI) : intermittent crashes with TrueType fonts

Details
The sfnts reader code in the FAPI module maintains a pointer to a string from an array
of strings (the /sfnts array). It then used the offset member to point along the string
to the current byte within it. When reading multiple bytes, it checks there is
sufficient data by checking ptr+offset against the size of the string. However the code
did not increment the offset member after reading multiple bytes, instead it incremented
the actual pointer. This completely bypassed the size checking, which could cause a
crash depending on the memory layout. This was only likely to happen with fonts with
very large TrueType tables (ie those not conforming to Type 42 recommendations
regarding string sizes, see tech note 5012)

Altered the code to always increment the offset rather than the pointer so that size
checking works properly.

[psi/zfapi.c]

2009-11-26T10:18:15.394246Z Ken Sharp

Fix (FAPI) : Incorrect GID supplied to font interpreter for CIDFonts with TT outlines

Details
CIDFonts use a CID, for CIDFonts with TrueType outlines the font contains a CIDToGIDMap
entry which is used to convert the CID into a TrueType Glyph ID (GID). We were not using
the data, which resulted in us passing the CID directly to the font interpreter, which
caused the wrong glyph to be extracted, or failures to occur because the GID was larger
than the number of glyphs in the font.

The type 42 font code in GS converts the CIDToGIDMap into a CIDMap entry, we now use
this to convert the CID into a correct GID for the font interpreter to use.

[psi/zfapi.c]

2009-11-26T10:13:00.448002Z Ken Sharp

Fix (FAPI) : CIDFonts not working with fonts containing a CDevProc

Details
When calling zchar_set_cache we always used the glyph name as one of the arguments,
this argument was later pushed onto the stack for use by a CDevProc if required. The 
problem is that with CIDFonts the name is always a null object and we should actually 
be supplying the CID to the procedure.

Modified the call to zchar_set_cache when we have a CIDFont to supply the CID instead 
of the name

[psi/zfapi.c]

2009-11-26T07:13:02.012525Z Marcos H. Woehrmann

Report enhancments as a separate category in the the weekly bug aging report.  Closes bug 690524.

[toolbin/bugsByEngineer.pl]

2009-11-26T00:47:35.579155Z Robin Watts

Fix for bug 688655: stroking of wide curves with high curvature would
previously have left strange effects under the curve, and had nasty
flattening artifacts on the outside of joins.

Here we alter the stroking logic to spot that line segments come from curves
and we render using round joins both above and below the curve.

This gives us correct rendering of tests/ps/jointest.ps for the first time.

This causes about 4000 diffs. I've generated a huge number of them locally
and they all seem to be the odd pixel changed do to rounding. Where differences
are larger I've convinced myself that the difference is correct.

[base/gxstroke.c]

2009-11-25T19:59:11.063393Z Henry Stiles

Remove the string list implementation from the "nogc" allocator.  This
makes the implementation much simpler and there was little or no
performance improvement with the string lists.  Also this file has
been cleaned up of archaic comments about VMS, compiler support
comments, pragmas, etc.  No expected differences.

[base/gsnogc.c]

2009-11-24T16:51:12.328850Z Robin Watts

Fix for bug 690938. Revert revision 10294, an attempt to fix a valgrind bug,
and instead initialise the bbox of paths to the maximally invalid bbox.

As soon as any point is added to the bbox, we'll get a valid bbox. Note that
the "bbox_set" flag does NOT mean "the bbox is valid", it instead means "the
bbox has been set, as per the setbbox postscript operator".

[base/gxpath.c base/gxpath2.c base/gxpath.h]

2009-11-24T12:31:17.678731Z Robin Watts

In revision 10351 I commited a partial fix for Bug 690531 that added a new
method for stroking a path. Due to a silly mistake on my part when stroking
paths with round caps, we could occasionally fail due to a confusion over
which caps to use.

Ralph reported this issue as bug 690639. The error is fixed here, but this
doesn't solve all the rendering problems. Investigations continuing.

[base/gxstroke.c]

2009-11-24T08:36:27.174072Z Lars Uebernickel

Don't use sed's extended regular expression syntax in configure.ac.

GNU and Mac OS X have different command line options to enable them and since
it was only used once, it's easier to simply use the standard regexp format.

[base/configure.ac]

2009-11-24T01:31:19.408746Z Ralph Giles

Implement JBIG2Decode generic regions using TPGDON.

Closes bug 690791.

[jbig2dec/jbig2_generic.c]

2009-11-23T17:35:16.098214Z Ray Johnston

Fix for segfault reported in 690880 with separation devices. The is_open flag
was not being properly maintained when put_params resulted in a target device
closing due to DeviceN color state changing.

DETAILS:

The check in zputdeviceparams relied on code > 0 or the width or height change
in order to determine that the device needed to be reinitialized. The put_params
forwarding needed to check if the target device closed (such as when DeviceN
parameters changed) and return code=1 to trigger the device reinitialization.

Also the forwarding of close_device needed to make sure and set is_open=false
if it called the target device procedure directly instead of using gs_closedevice
(which takes care of this detail).

[base/gdevp14.c base/gdevnfwd.c]

2009-11-23T02:44:56.504420Z Marcos H. Woehrmann

Report pdfwrite differences separately from other differences.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/compare.pl]

2009-11-22T23:46:21.529560Z Ray Johnston

Add description of the tiffsep1 device. It was mentioned in the previous update,
but the basic device characteristics were missing.

[doc/Devices.htm]

2009-11-22T20:09:44.171077Z Lars Uebernickel

Added a -sCompression parameter to all TIFF devices.

This parameter sets the compression scheme of the resulting file and can take
the values 'none', 'crle', 'g3', 'g4', 'lzw', and 'pack'.  crle, g3, and g4
only work for 1-bit devices.  For tiffsep, it sets the compression scheme of
the separation files, the composite cmyk file is always saved uncompressed.

Libtiff supports many more compression formats (e.g. jpeg, deflate).  Adding
them to this implementation is trivial.

doc/Devices.htm documents the parameter further.

[base/gdevtifs.c base/gdevtifs.h base/gdevtsep.c doc/Devices.htm base/gdevtfnx.c base/gdevtfax.c]

2009-11-21T09:44:54.242928Z Ken Sharp

Fix (pdfwrite) : problems with type 3 fonts and glyphshow

Details
Bug #690738 "pdfwriter garbles/omits glyphs"
Bug #690836 "Bug during eps to pdf conversion"
Bug #690882 "ps2pdf mangles type 3 fonts"

Revision 9804 modified pdfwrite to try and make text in type 3 bitmap fonts, derived
from PCL input, more likely to produce a PDF file with searchable text. Part of the 
change was to try and group multiple glyphs together into a single string instead of
emitting them as single glyphs.

Unfortunately that was an optimisation too far. There is no way currently to tell the
difference between a type 3 font which has been converted into a bitmap, one which
started as a bitmap, and one where the CharProc has been captured (PostScript). We do
however store bitmap and outline glyphs in different fonts, the problem arose if we
converted a CharProc to a bitmap, and then stored a CharProc, the code did not realise
that we had switched fonts and tried to use the bitmap font for both.

This occurs because matplotlib defines all its fonts as type 3, applies an Encoding 
to them, but never uses it, instead showing all glyphs with a glyphshow operation.
This makes it difficult for pdfwrite to assemble an output type 3 font with a valid
Encoding, and PDF doesn't support glyphshow. In this case if we find that the glyphshow
uses a glyph which is not in the font's Encoding (eg /multiply) we end up producing a
bitmapped glyph instead.

Ideally we would capture the CharProc, but doing so would be very difficult in this case
for a very minor benefit. Instead I've chosen to remove this optimisation.

Previously we would emit text something like:

x y moveto
(ABC) show

Now we do:

x y moveto
(A) show
x1 y1 moveto
(B) show
x2 y2 moveto
(C) show

There seem to be no differences in the test suite with PostScript and PDF files, 
probably because no files apart from matplotlib use glyphshow in this demented fashion.
However, this does result in a large number of PCL test files exhibiting very small
differences with text, especially at low resolution, due to tiny shifts in position.

[base/gdevpdts.c]

2009-11-20T20:09:26.637666Z Ray Johnston

Fix segfaults in tiffsep and tiffsep1 -- After TIFFCleanup, need to set the tiff
structure pointer to NULL to prevent later use. Fix separation file name logic
to substitute a harmless '_' character for characters that cause file system
action ('/'. '\' and ':').

Set default compression for tiffsep output 'gray' pages to LZW and default for
tiffsep1 to G4. While not strictly backwards compatible, any competent tiff
reader will be able to handle this.

[base/gdevtsep.c]

2009-11-20T18:10:12.230365Z Ralph Giles

Skip JBIG2Decode generic regions using TPGDON.

We don't yet implement this, and discarding the data is better than
proceeding with the incorrect decoding proceedures, which generally
just produce noise. Work-around for bug 690791.

[jbig2dec/jbig2_generic.c]

2009-11-19T20:17:02.559183Z Ray Johnston

Fix for segfault reported in bug 690927 and two of the segfaults of bug 690880.

DETAILS:

The pdf14_compressed_encode_color (and _decode_) assumed that the device was
a pdf14_device and directly accessed the devn_params using that structure offset,
but when filling gradients the device was the target device (a gx_device_printer
subclass) so the pointer was wrong.

The primary change is in base/gxblend1.c and uses the device's ret_devn_params
procedure (if possible). If the proc is NULL, or if it returns NULL, then and
only then use the devn_params structure assuming that the device is a pdf14
variant (usually pdf14cmykspot or pdf14clistcmykspot).

A check for this is performed in DEBUG builds in case this expected invariant
is ever violated. In order for the check to be made simpler, the names of all
of the devices were changed to all start with "pdf14" (some were PDF14).

[base/gdevp14.c base/gxblend1.c]

2009-11-19T16:48:11.876622Z Robin Watts

Fix stupid typo: ; for , - pointed out by tor. Sorry everyone.

[base/gspath.h]

2009-11-19T13:56:18.594001Z Robin Watts

Fix for Bug 690531, excessive slowdown while rendering a complex stroked
path with anti-aliasing.

The problem is caused by the gs filling code grinding to a halt under the
weight of an extremely complex path produced by stroking an already complex
path and then filling it all at once.

This change can be seen as a workaround in that it does not change the
filling code at all (this may be considered in future after the freetype
changes have gone in), but instead adds a new mechanism for stroking that
produces (broadly) equivalent strokes which happen to fill more easily.

[base/gxpath2.c base/gxpath.h base/gxstroke.c]

2009-11-19T00:09:15.456317Z Ralph Giles

Replace only the initial definition of the gs executable
in the script wrappers.

It is possible to change the name of the compiled gs executable; this is
generally used to distinguish multiple installed versions. In r5212 a
sed command was added to the unix build scripts to rewrite the name of
the gs executable embedded in the various wrapper scripts so that they
would call the corresponding version.

This was broken in r8107 where an extra clause was added to have the
wrapper scripts prefer the gs executable in their local directory
over any in the path. Unfortunately the sed command rewrites both
attempts to set GS_EXECUTABLE.

This commit only rewrites the specific assignment of the default name.
Thanks to Vince Dean for suggesting the fix. Bug 686863.

[base/unixinst.mak]

2009-11-18T04:46:21.000840Z Alex Cherepanov

Handle optional content following the default viewing optional content
configuration dictionary. Skip invisible XObjects and render invisible
parts of content streams to nulldevice. Bug 690633, customer 1110.

[Resource/Init/pdf_ops.ps Resource/Init/pdf_main.ps Resource/Init/pdf_draw.ps]

2009-11-17T22:26:38.187446Z Lars Uebernickel

Call libtiff's configure script when configuring ghostscript.

This also removes the (now) unnecessary tiff config files from the repository,
which fixes build problems on compilers where headers are always first searched
in the current directory.

[tiff/libtiff/tif_config.h tiff/libtiff/tiffconf.h base/configure.ac]

2009-11-17T20:10:20.126305Z Lars Uebernickel

Use TIFFCleanup instead of TIFFClose in all tiff devices, as the fd is already
closed in gp_prn_close.

[base/gdevtifs.c base/gdevtsep.c base/gdevtfax.c]

2009-11-17T18:01:22.576735Z Marcos H. Woehrmann

Several small changes to the local cluster code:

clusterpush.pl - you can now specify what products to test via the command line. 

e.g. clusterpush.pl gs
     clusterpush.pl 'svg pcl'

By default all products ('gs','pcl','xps','svg') are tested.

compare.pl - no longer report not changed non-value return codes.

build.pl - remove all pcl tests except for 600 dpi/banded and most svg tests.
no longer randomize jobs (helps with the indeterminisms and improves load balancing).

clustermaster.pl - changes to support new clusterpush.pl options and improvement in the
load balancing algorithm.

run.pl - add support for semaphore to insure only on copy is run at a time
(currently disabled pending additional testing).

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2009-11-17T15:45:42.467605Z Ken Sharp

Fix (TT font substitution) : Incorrect Widths applied to CIDFont glyphs from PDF file

Details
Bug #690876 "Spacing issues with mixed asian/roman characters"

The PDF interpreter applies the /Widths array from a PDF CIDFont by applying a custom
CDevProc to alter the width of the glyph before it is cached. This procedure relies
on the CID of the glyph being correct, as this is the index into the Widths array.

This works correctly for genuine (embedded or from disk) CIDFonts. However, if we use
a disk-based TrueType font as a substitute for a missing CIDFont, the integer which gets
passed into the CDevProc routine is the TrueType glyph ID (GID). This is because the
CID from the CIDKeyed instance must be converted into a GID for us to consult the font.
Using the GID instead of the CID results in incorrect widths being applied.

This conversion happens in PostScript and the original CID is not available at the time
CDevProc is executed.

Since this only affects substitution of fonts its arguable that the CDevProc is useless
in its original intent anyway. 

This patch detects a CIDFont being replaced by a TrueType font by checking the font
type is type 11 (CIDFont with TT outlines), that the font dictionary contains a key
called /File (has been read from disk) and that the font_name and key_name strings
are different (substituted font).

In this case we ignore the CDevProc routine, and simply use the original widths from 
the TrueType font. The widths won't be the same as requested by the job, but then 
neither are the glyphs. For this job, because the widths of the TrueType glyphs are
sensible, the result is an improvement in the output.

[psi/zcharout.c]

2009-11-16T17:01:59.813716Z Ken Sharp

Details
After revision 8465 it is no longer possible for
show_state_setup in gxchar.c to alter the value of 'can_cache' but a comment in 
gx_default_text_begin still said that it may do so.

Removed the misleading comment.

[base/gxchar.c]

2009-11-16T16:48:21.437679Z Ken Sharp

Fix (TT fonts) : regression with TrueType fonts

Details:
Bug #690642 "conversion to PDF aborts after 800 pages"
Bug #690921 "Regression: /invalidaccess in --run-- starting with r9897"

The patch for #690642 was an interim fix which was known to have flaws and was supposed
to be revisited to fix them. Unfortunately a file appeared which exhibited an attempt to
put a key in a read-only dictionary before this was done.

This patch resolves both issues by removing the need for a temporary key (hence we no
longer write into a read-only dictionary) and also removes some ugliness (and slight
performance penalty) by not creating a dict from the stack, patching the dict, and
loading its contents back to the stack.

[Resource/Init/pdf_font.ps Resource/Init/gs_ttf.ps]

2009-11-14T18:20:52.369823Z Robin Watts

Bug fix for Bug 688604, "incorrect rendering of a returning curve".

The code currently in ghostscript checks for the bbox of a beziers control
points being of zero width/height and to avoid a division by zero just chooses
not to subdivide this curve. This is wrong in some cases.

The fix here is a cheap and cheerful one; in the case where one dimension is
zero and the other isn't, we basically do the same calculation as would be
done in the two dimensional case, but just with a one dimensional distance
as input.

This causes various diff; all look good in my tests.

[base/gxpcopy.c]

2009-11-13T00:16:47.523271Z Robin Watts

This patch fixes Bug 688269, by making ghostscript use pie joins rather than
round ones when stroking in non CPSI_mode.

This produces 3000 or so bitmap diffs, but after leaving my machine running
all night generating lots of diffs for me to examine this morning, they all
look like stray pixel changes (i.e. differences caused by rounding).

[base/gxstroke.c]

2009-11-11T17:42:22.705154Z Robin Watts

Final msvc makefile changes to make ghostPDL targets build with the new
libtiff stuff.

[/trunk/ghostpdl/svg/svg_msvc.mak base/gs.mak]

2009-11-11T15:50:28.792827Z Lars Uebernickel

Changed all tiff devices to use libtiff.

Affected Devices are tiffgray, tiff12nc, tiff24nc, tiff32nc, tiffsep, tiffsep1,
tiffcrle, tiffg3, tiffg32d, tiffg4, tifflzw, and tiffpack.  Also, two new
devices: tiff48nc and tiff64nc (16 bits per component rgb and cmyk respectively)
have been added.

Libtiff 3.9.2 is included in the source tree as tiff/.  It is possible to link
to the system's libtiff by passing --with-system-libtiff to configure.  Passing
--without-system-libtiff will force the build to use the in-source version. By
default, the newer library (based on TIFFLIB_VERSION in tiffvers.h) is used.

[tiff/libtiff/tif_predict.c tiff/contrib/addtiffo/tif_ovrcache.c tiff/html/images/bali.jpg tiff/libtiff/tif_predict.h tiff/man/tiffdither.1 tiff/contrib/addtiffo/tif_ovrcache.h tiff/libtiff/tiffconf.h tiff/libtiff/tif_apple.c tiff/html/v3.7.1.html tiff/html/v3.5.7.html tiff/test/check_tag.c tiff/man tiff/contrib/iptcutil/iptcutil.c tiff/html/addingtags.html tiff/contrib/dbs/tiff-palette.c tiff/html/man/TIFFbuffer.3tiff.html tiff/html/index.html tiff/contrib/win_dib/Tiffile.cpp base/gdevtifs.c base/gxcmap.c tiff/config/install-sh tiff/man/TIFFReadRGBATile.3tiff base/gdevtifs.h tiff/html/man/tiffsplit.1.html tiff/html/man/TIFFPrintDirectory.3tiff.html tiff/contrib/tags/xtif_dir.c tiff/contrib/stream/README tiff/contrib/acorn/SetVars tiff/contrib/mac-mpw/mactrans.c tiff/contrib/mfs/mfs_file.c tiff/test/short_tag.c tiff/tools/fax2tiff.c tiff/config/depcomp tiff/html/man/TIFFReadScanline.3tiff.html tiff/contrib/tags tiff/contrib/ras/Makefile.am tiff/libtiff/tif_aux.c tiff/libtiff/tif_packbits.c tiff/libtiff/tif_zip.c tiff/html/v3.5.4.html tiff/man/TIFFbuffer.3tiff tiff/contrib/mac-cw tiff/contrib/acorn/Makefile.am tiff/html/man/TIFFmemory.3tiff.html tiff/html/v3.5.6-beta.html tiff/m4/ltsugar.m4 tiff/tools/ycbcr.c tiff/html/man/TIFFRGBAImage.3tiff.html tiff/man/TIFFWriteRawStrip.3tiff tiff/html/v3.4beta007.html tiff/libtiff/tif_unix.c tiff/html/man/tiffinfo.1.html tiff/html/man/tiffset.1.html tiff/tools/rasterfile.h tiff/html/man/TIFFFlush.3tiff.html tiff/man/tiffdump.1 tiff/contrib/dbs/tiff-rgb.c tiff/contrib/dbs/Makefile.in tiff/html/man/fax2tiff.1.html tiff/contrib/mac-cw/mkg3_main.c tiff/contrib/win_dib/Makefile.in tiff/configure.com tiff/html/man/TIFFReadRGBAStrip.3tiff.html tiff/html/man/sgi2tiff.1.html tiff/tools/tiff2ps.c tiff/html/v3.5.1.html tiff/html/intro.html tiff/libtiff/tif_atari.c tiff/html/v3.8.0.html tiff/contrib/dbs/README tiff/config tiff/libtiff/tiffiop.h tiff/html/internals.html tiff/html/images/cover.jpg tiff/html/build.html tiff/libtiff/tiffconf.h.in tiff/html/man/TIFFWarning.3tiff.html tiff/contrib/mac-cw/metrowerks.note tiff/man/TIFFReadEncodedStrip.3tiff tiff/man/tiff2bw.1 tiff/HOWTO-RELEASE tiff/man/tiff2pdf.1 tiff/man/tiffsplit.1 tiff/html/man/TIFFcodec.3tiff.html tiff/man/bmp2tiff.1 tiff/html/v3.4beta016.html tiff/tools/fax2ps.c tiff/html/libtiff.html tiff/html/v3.4beta028.html tiff/html/man/tiffmedian.1.html tiff/html/man/TIFFWriteRawTile.3tiff.html tiff/man/TIFFError.3tiff tiff/tools/tiffmedian.c tiff/man/rgb2ycbcr.1 tiff/libtiff/uvcode.h tiff/html/images/dave.gif tiff/man/TIFFWriteEncodedStrip.3tiff tiff/html/man/Makefile.in tiff/contrib/dbs/xtiff/Makefile.am tiff/config/config.sub tiff/libtiff/Makefile.vc tiff/libtiff/tif_fax3.c tiff/man/TIFFWarning.3tiff tiff/tools/tiffgt.c tiff/man/TIFFWriteScanline.3tiff tiff/html/v3.9.2.html tiff/SConstruct tiff/contrib/tags/Makefile.am tiff/contrib/acorn/install tiff/libtiff/tif_fax3.h tiff/contrib/pds/tif_pdsdirwrite.c tiff/contrib/mac-mpw/Makefile.am tiff/man/TIFFcodec.3tiff tiff/man/tiffsv.1 tiff/html/Makefile.am tiff/contrib/mac-mpw/tools.make tiff/html/images/oxford.gif tiff/html/man/TIFFsize.3tiff.html tiff/contrib/iptcutil/Makefile.in tiff/html/man/TIFFReadEncodedTile.3tiff.html tiff/contrib/ras/tif2ras.c tiff/configure tiff/html/images/note.gif tiff/contrib/mfs/README tiff/html/man/tiff2bw.1.html tiff/config/mkinstalldirs tiff/libtiff/tif_jpeg.c psi/msvc32.mak tiff/test/Makefile.am tiff/html/man/TIFFGetField.3tiff.html tiff/m4/ltoptions.m4 tiff/html/man/TIFFReadRGBATile.3tiff.html tiff/libtiff/libtiff.def tiff/contrib/tags/listtif.c tiff/man/raw2tiff.1 tiff/html/v3.7.0beta.html tiff/tools/tiffdump.c tiff/html/man/TIFFWriteEncodedTile.3tiff.html tiff/man/ppm2tiff.1 tiff/html/v3.6.0.html tiff/contrib/addtiffo/Makefile.vc base/unix-gcc.mak tiff/man/TIFFDataWidth.3tiff tiff/contrib/mfs/Makefile.in tiff/contrib/pds/Makefile.in tiff/tools/Makefile.am tiff/contrib/dbs/tiff-bi.c tiff/contrib/iptcutil/test.iptc tiff/man/TIFFcolor.3tiff tiff/html/man/TIFFWriteScanline.3tiff.html tiff/man/tiff2rgba.1 tiff/contrib/addtiffo tiff/contrib/acorn/convert tiff/html/v3.4beta034.html tiff/tools/tiff2pdf.c tiff/port/libport.h tiff/html/man/TIFFSetDirectory.3tiff.html tiff/man/tiff2ps.1 base/devs.mak tiff/tools/bmp2tiff.c tiff/contrib/iptcutil/test.txt tiff/RELEASE-DATE tiff/contrib/iptcutil tiff/html/man/TIFFReadTile.3tiff.html tiff/test/strip.c tiff/man/libtiff.3tiff tiff/libtiff/tif_win32.c tiff/html/v3.7.2.html tiff/libtiff/tif_ojpeg.c tiff/html/contrib.html tiff/build/Makefile.am tiff/html/man/tiffcmp.1.html tiff/html/man/TIFFClose.3tiff.html tiff/html/man/TIFFquery.3tiff.html tiff/html/TIFFTechNote2.html tiff/html/images/ring.gif tiff/test tiff/libtiff/tif_config.h-vms tiff/html/v3.4beta031.html tiff/contrib/mfs tiff/contrib/win_dib/tiff2dib.c tiff/man/TIFFswab.3tiff tiff/html/images/Makefile.in tiff/contrib/mac-mpw/libtiff.make tiff/contrib/mac-cw/mac_main.c tiff/man/thumbnail.1 tiff/libtiff/tiff.h tiff/port/lfind.c tiff/libtiff/Makefile.in tiff/contrib/mac-cw/mac_main.h tiff/libtiff/tif_strip.c tiff/tools/raw2tiff.c tiff/html/v3.5.5.html tiff/TODO tiff/man/TIFFWriteTile.3tiff tiff/tools/ppm2tiff.c tiff/port/strcasecmp.c tiff/man/TIFFReadEncodedTile.3tiff tiff/html/man/tiffdither.1.html tiff/tools/sgisv.c tiff/contrib/tags/xtiffiop.h tiff/man/tiffmedian.1 tiff/libtiff/tif_config.h.in tiff/contrib/addtiffo/addtiffo.c tiff/html/images/quad.jpg tiff/html/images/warning.gif tiff/html/man/tiffsv.1.html tiff/html/images/cat.gif tiff/man/tiffcp.1 tiff/man/tiffcrop.1 tiff/man/TIFFReadRGBAStrip.3tiff tiff/libtiff/tif_version.c tiff/ChangeLog base/gdevtfnx.c tiff/test/long_tag.c tiff/port/Makefile.am tiff/man/TIFFSetField.3tiff tiff/man/Makefile.in tiff/libtiff/tif_swab.c tiff/build tiff/contrib/addtiffo/Makefile.in tiff/html/v3.5.2.html tiff/configure.ac tiff/html/man/TIFFWriteEncodedStrip.3tiff.html tiff/html/v3.8.1.html tiff/contrib/stream/Makefile.am tiff/man/TIFFmemory.3tiff tiff/man/TIFFsize.3tiff tiff/Makefile.am tiff/contrib/Makefile.am tiff/html/images tiff/autogen.sh base/winlib.mak tiff/libtiff/tif_jbig.c tiff/man/tiffinfo.1 tiff/libtiff/tif_extension.c tiff/html/images/smallliz.jpg tiff/port/strtoul.c tiff/html/man/TIFFReadEncodedStrip.3tiff.html tiff/html/man/fax2ps.1.html base/configure.ac tiff/VERSION tiff/contrib/mac-cw/Makefile.script tiff/man/TIFFWriteEncodedTile.3tiff tiff/html/v3.4beta029.html tiff/contrib/mac-cw/Makefile.in tiff/man/ras2tiff.1 tiff/libtiff/t4.h tiff/README tiff/contrib/README tiff/html/man/tiff2ps.1.html tiff/contrib/tags/maketif.c tiff/contrib/win_dib/README.tiff2dib tiff/html/man/rgb2ycbcr.1.html tiff/contrib/mac-mpw/BUILD.mpw tiff/html/man/tiffgt.1.html tiff/html/man/TIFFReadDirectory.3tiff.html base/gxdevice.h tiff/libtiff/tif_warning.c tiff/html/v3.7.0alpha.html tiff/tools/tiffcmp.c tiff/html/images/strike.gif tiff/contrib/stream/tiffstream.cpp tiff/contrib/ras/README tiff/html/man/TIFFcolor.3tiff.html tiff/tools/tiffset.c tiff/contrib/dbs/xtiff tiff/contrib/pds/tif_pdsdirread.c tiff/contrib/stream tiff/contrib/tags/xtiffio.h tiff/html/man/tiffcrop.1.html tiff/tools/tiffcrop.c tiff/port/dummy.c tiff/contrib/mac-mpw/port.make tiff/man/TIFFReadRawTile.3tiff tiff/html/man/TIFFtile.3tiff.html tiff/html/v3.6.1.html tiff/libtiff/tif_fax3sm.c tiff/html tiff/contrib/ras/Makefile.in tiff/libtiff/tif_close.c tiff/libtiff/tif_luv.c tiff/man/gif2tiff.1 tiff/html/man/libtiff.3tiff.html tiff/libtiff/tif_config.h tiff/contrib/pds/tif_imageiter.c tiff/man/TIFFPrintDirectory.3tiff tiff/contrib/dbs/Makefile.am tiff/libtiff/tif_flush.c tiff/contrib/win_dib/Makefile.am tiff/contrib/acorn/Makefile.in tiff/contrib/pds/tif_imageiter.h tiff/tools/Makefile.vc tiff/html/v3.4beta035.html tiff/contrib/stream/tiffstream.h tiff/libtiff/mkg3states.c tiff/tools/tiffinfo.c tiff/tools/tiffsplit.c tiff/contrib/pds tiff/contrib/win_dib/README.Tiffile tiff/man/TIFFReadDirectory.3tiff tiff/html/v3.9.0beta.html tiff/tools tiff/tools/rgb2ycbcr.c tiff/tools/ras2tiff.c tiff/html/images/cramps.gif tiff/m4/libtool.m4 tiff/html/v3.7.3.html tiff/html/tools.html tiff/COPYRIGHT base/libtiff.mak tiff/man/TIFFReadRGBAImage.3tiff tiff/contrib/win_dib/Makefile.w95 tiff/libtiff/tif_thunder.c tiff/html/man/TIFFReadRawStrip.3tiff.html tiff/man/fax2ps.1 tiff/libtiff/tif_lzw.c tiff/man/TIFFSetDirectory.3tiff tiff/html/man/TIFFReadRGBAImage.3tiff.html tiff/contrib/acorn/Makefile.acorn tiff/libtiff/tif_color.c tiff/m4 tiff/man/TIFFGetField.3tiff tiff/html/v3.4beta032.html tiff/libtiff/tif_win3.c tiff/html/man/TIFFWriteDirectory.3tiff.html tiff/contrib/ras tiff/libtiff/SConstruct tiff/man/sgi2tiff.1 tiff/html/man/Makefile.am tiff/contrib/iptcutil/README tiff/libtiff/tif_dirwrite.c tiff/build/README tiff/libtiff/tif_dirinfo.c tiff/libtiff/tif_write.c tiff/config/compile tiff/man/tiffgt.1 tiff/libtiff/tif_tile.c tiff/README.vms tiff/html/misc.html tiff/html/v3.7.0.html tiff/man/tiffcmp.1 tiff/libtiff/tif_open.c tiff/contrib/iptcutil/Makefile.am tiff/test/strip_rw.c tiff/contrib/dbs/xtiff/Makefile.in tiff/libtiff/tiffconf.vc.h tiff/contrib/win_dib tiff/man/tiffset.1 tiff/contrib/tags/Makefile.in tiff/libtiff/tif_config.wince.h tiff/tools/gif2tiff.c tiff/contrib/mac-mpw/Makefile.in tiff/contrib/dbs/xtiff/README tiff/libtiff/tiffio.h tiff/html/Makefile.in tiff/tools/tiff2rgba.c tiff/html/man/tiffcp.1.html tiff/contrib/mfs/Makefile.am tiff/contrib/acorn/ReadMe tiff/contrib/pds/Makefile.am tiff/man/TIFFstrip.3tiff tiff/html/man/TIFFswab.3tiff.html tiff/test/Makefile.in tiff/html/v3.5.3.html tiff/html/man/TIFFSetField.3tiff.html tiff/contrib/dbs/xtiff/patchlevel.h tiff/html/v3.8.2.html tiff/html/man/TIFFOpen.3tiff.html tiff/contrib/dbs/xtiff/xtifficon.h tiff/libtiff/tiffconf.wince.h tiff/port/getopt.c tiff/html/images/info.gif tiff/port/Makefile.vc tiff/contrib/addtiffo/tif_overview.c tiff/tools/tiffdither.c tiff/tools/pal2rgb.c tiff/html/images.html tiff/libtiff/tif_dumpmode.c tiff/html/man/TIFFWriteTile.3tiff.html tiff/aclocal.m4 tiff/config/missing tiff/html/man tiff/libtiff/tif_dir.c tiff/tools/Makefile.in tiff/Makefile.vc tiff/port tiff/html/man/tiff2pdf.1.html tiff/libtiff/tif_dir.h tiff/html/v3.4beta018.html tiff/html/man/tiff2rgba.1.html tiff/libtiff/tif_msdos.c base/gdevfax.c tiff/html/man/index.html tiff/contrib/dbs/tiff-grayscale.c tiff/contrib/dbs/xtiff/xtiff.c tiff/html/images/jim.gif base/gdevfax.h tiff/libtiff/tif_print.c tiff/tools/sgi2tiff.c tiff/man/TIFFOpen.3tiff tiff/contrib tiff tiff/contrib/mac-mpw tiff/config/ltmain.sh tiff/contrib/mac-cw/README tiff/tools/thumbnail.c tiff/libtiff/tiffio.hxx tiff/man/TIFFReadRawStrip.3tiff tiff/html/man/ppm2tiff.1.html tiff/contrib/acorn/cleanlib tiff/man/TIFFRGBAImage.3tiff tiff/html/images/back.gif tiff/libtiff/tif_read.c tiff/libtiff/tif_stream.cxx tiff/man/TIFFWriteDirectory.3tiff tiff/libtiff/tif_codec.c tiff/build/Makefile.in tiff/html/images/Makefile.am tiff/contrib/mac-cw/version.h tiff/test/ascii_tag.c tiff/libtiff/tif_pixarlog.c tiff/man/TIFFReadTile.3tiff tiff/libtiff/Makefile.am tiff/html/man/TIFFWriteRawStrip.3tiff.html tiff/contrib/tags/README tiff/libtiff/tif_error.c tiff/man/TIFFtile.3tiff tiff/nmake.opt tiff/libtiff/tif_compress.c tiff/libtiff/tiffvers.h tiff/html/man/TIFFError.3tiff.html tiff/html/man/tiffdump.1.html tiff/html/man/ras2tiff.1.html tiff/man/TIFFClose.3tiff tiff/man/TIFFquery.3tiff base/Makefile.in tiff/html/man/raw2tiff.1.html tiff/html/v3.9.1.html tiff/html/man/TIFFReadRawTile.3tiff.html tiff/m4/lt~obsolete.m4 tiff/html/man/pal2rgb.1.html tiff/libtiff/tif_dirread.c tiff/contrib/mac-mpw/top.make tiff/man/TIFFFlush.3tiff tiff/html/v3.7.0beta2.html tiff/man/TIFFWriteRawTile.3tiff tiff/html/v3.4beta024.html tiff/contrib/pds/README tiff/man/fax2tiff.1 tiff/libtiff/tif_getimage.c tiff/man/Makefile.am tiff/html/v3.4beta036.html tiff/man/TIFFReadScanline.3tiff doc/Devices.htm tiff/contrib/addtiffo/Makefile.am tiff/tools/tiffcp.c tiff/html/images/jello.jpg tiff/contrib/mac-mpw/README tiff/config/config.guess tiff/test/test_arrays.c tiff/contrib/acorn base/gs.mak tiff/man/pal2rgb.1 tiff/html/man/thumbnail.1.html tiff/libtiff/tif_acorn.c tiff/test/test_arrays.h tiff/html/man/TIFFstrip.3tiff.html tiff/html/v3.7.4.html tiff/port/Makefile.in tiff/html/bugs.html tiff/contrib/dbs base/gdevtfax.c tiff/contrib/addtiffo/README tiff/contrib/stream/Makefile.in tiff/html/man/TIFFDataWidth.3tiff.html tiff/libtiff tiff/contrib/mac-cw/Makefile.am tiff/contrib/ras/ras2tif.c tiff/libtiff/tif_next.c tiff/html/man/gif2tiff.1.html tiff/contrib/Makefile.in tiff/Makefile.in tiff/html/v3.4beta033.html tiff/html/support.html tiff/libtiff/tif_config.vc.h tiff/m4/ltversion.m4 tiff/tools/tiff2bw.c base/gdevtsep.c tiff/html/document.html tiff/m4/acinclude.m4]

2009-11-11T15:01:20.119636Z Hin-Tak Leung

silent two compiler warnings for casting from const to non-const introduced by r10313

[base/gdevpx.c]

2009-11-11T14:53:05.840060Z Hin-Tak Leung

partly reverting r8576, and other file-size improvements.

After r10313, it becomes possible to revert r8576 (which was
a work-around to bug 688992, but increases file-sizes in some cases). 
It is also found that r8576 is in fact more efficient for 
small rasters; so it is only partly reverted. In two other places where
write_image_data() is called, switching to gx_default_copy_* for single-line
images/masks is likely to work well also. 

This fixes bug 690857, where 12-07C.PS uses a lot of 1-bit images,
and shrinks the file size by a factor of 4. 

There are a total of 4 places where write_image_data() is called
(copy_mono/copy_color/fill_masks/image_write_rows) - the 4th does
not use the data_bit field, nor is it likely to be called
with small rasters; so it is left unmodified.

[base/gdevpx.c]

2009-11-11T14:26:17.282201Z Till Kamppeter

The cups_map_cmyk() function applied density corrections to RGB values. They can only get applied to CMYK values. Fixed by applying the cupsDensity correction before converting CMYK to RGB.

[cups/gdevcups.c]

2009-11-11T13:53:23.399755Z Hin-Tak Leung

handles the case of data_bit being multiple of 8.

Try to handle the case of data_bit being multiple of 8 This fixes 690862,
and also make it possible to revert r8576 (which was a work-around to 
bug 688992, but increases file-size) to fix bug 690857 (file-size issue).

Non-multiple of 8 are not handled, but by-passed at the callers'.

[base/gdevpx.c]

2009-11-11T13:52:23.912583Z Alex Cherepanov

Increase the size of the initial buffer in the scanner dynamic area to accept
the string of maximum valid size. Protect the buffer from overflow when the
scanner state is saved during reading of a name that exceed max name length.
Bug 690902.

[psi/iscan.c psi/int.mak psi/iscan.h]

2009-11-11T13:37:03.631859Z Hin-Tak Leung

caching SetPen/SetBrush Null calls

For some test files (the PS3 CET set), the pxlcolor/pxlmono code
emits a lot of setpen/setbrush nulls. There is no need to set it again
if the printer already got a previous setpen/brush null. So this patch
caches the null/non-null state of both pen and brush in the
driver and not re-issue set nulls if the last set was a null.

This only gives about 5% file size saving for the test file I wrote it
for. Part of the fix to bug 690857.

[base/gdevpx.c]

2009-11-11T09:51:26.353930Z Ken Sharp

Fix (pdfwrite) : correct introduced regression 

Details
Bug #690906 "Regression: Several PostScript CET files hang pdfwrite"
Revision 10297 failed to check the return value from next_char_glyph for composite fonts
because the fact that an error return was possible was hidden inside a macro.

Adding error return checking resolves the problem

[base/gdevpdtt.c]

2009-11-10T20:44:18.431838Z Hin-Tak Leung

fix (signed 16-bit)0 problem with r10267, and separate signed/unsigned numbers.

r10267 'write signed 16-bit integers properly' contains a mistake with ">" 
(should be ">=") - it puts (signed 16-bit)0 as 32768. Historically, 
the old code does 16-bit integers unsigned eventually. This current change 
also separate signed and unsigned numbers. Apologies.

[base/gdevpxut.h]

2009-11-09T23:41:11.015200Z Hin-Tak Leung

implements white on mask (and added black on mask) in copy_mono.

This adds white on mask as mask=black and (D & ~S) | S . 
Black on mask is treated specially as (S & D). Fixes bug 688372
(which uses white on mask) and 690830 (which uses black on mask)
and 690025 (which uses both white on mask and black on mask).

[base/gdevpx.c]

2009-11-09T20:55:30.861525Z Hin-Tak Leung

reverting r8733, which was a faulty fix to bug 688372.

reverting most of r8733 (except the two debug statements), which was
a faulty fix to bug 688372. The faulty fix seems to be the source of
bug 690861 and 690868. The correct fix to 688372 to follow.

[base/gdevpx.c]

2009-11-09T20:20:51.490553Z Hin-Tak Leung

purge cached palette whenever color space changes.

The current pxlmono/pxlcolor code caches colorspace and palette calls
and not re-transmitting them if it hasn't changed since the last time
they were set. Whenever the color space changes, the current palette
should be purged, and a new palette should be (re-)transmitted to
the printer the next time an indexed colored image is sent.
This fixes bug 690859.

[base/gdevpx.c]

2009-11-09T18:42:04.818284Z Alex Cherepanov

Buffer mask data source in a reusable stream when needed for type 3 image with
separate data sources. Check all possible combinations of data source types and
fix a bunch of bugs in the code that handles cases untested before. Bug 688389.

[Resource/Init/gs_ll3.ps]

2009-11-09T16:04:58.791370Z Ken Sharp

Fix (pdfwrite) : type 0 fonts with type 3 descendants could confuse pdfwrite by using
stringwidth

Details
Bug #690875 "Ghostscript locks up writing PDF file"
There is code in gdev_pdf_text_begin which skips caching of type 3 glyphs when using
stringwidth. This prevents glyphs becoming bitmapped and ensures that pdfwrite and
the glyph cache are coherent.

The code did not check for composite fonts using type 3 descendants. In this case if a
job used some glyphs for stringwidth, then later used at least one of those glyphs and
one glyph not previously encountered in a single string pdfwrite would enter an
endless loop.

pdfwrite would notice that a glyph was not marked as 'used' in its internal cache, and
exit pdf_text_process to run the outline for the first glyph. GS would note that the
first glyph was already cached (from the stringwidth) and move on to the next glyph.
GS would render that glyph, pdfwrite would capture it and mark that character code as
used.

On returning to pdf_text_process the first glyph should be marked as used now, but it
was not, so pdfwrite would once again exit and the loop would repeat.

Fixed by checking string using composite fonts to see if any glyph used a type 3
descendant, and disabling caching if it does.

[base/gdevpdtt.c]

2009-11-09T14:19:54.384020Z Robin Watts

Adding comment as suggested by Hin-Tak to document why we need a particular
header file.

[base/gdevpx.c]

2009-11-09T14:15:32.309537Z Robin Watts

Fix to devs.mak: PXL requires a runlength compression function from PCL, so
correctly add the dependency to the makefile.

This issue was seen when building using macosx.mak on a Snow Leopard Macbook.

Maybe in future if codesize is an issue we should pull this function out to a
separate file.

[base/devs.mak]

2009-11-08T00:40:19.198456Z Robin Watts

Fix for valgrind problem in bug 690864.

We were scaling the bbox of a path even when the bbox had never been set.
The fix is to respect the bbox_set flag.

[base/gxpath2.c]

2009-11-07T17:31:12.980350Z Alex Cherepanov

Adobe Acrobat considers the use of clip operation on new path a no-op.
Check this and don't clip when there's no path. Bug 690891.

DETAILS:
Besides the change in clipping, this patch reverts the code that preserves
current point position after fill operations and interferes with new path
detection. Reverted code predates source control and its purpose is not clear.
Perhaps, it was an attempt to avoid nocurrentpoint errors, which are now
trapped and handled.

[Resource/Init/pdf_ops.ps]

2009-11-07T02:31:37.642669Z Ray Johnston

Save and restore the graphics state around the dummy fill that was added in
rev 10284 in order to make sure that pages have at least one fill_path call.
The 'copypage' operator does not perform initgraphics so the FTS test that
expected the graphics state to be unperturbed by copypage would fail.
Bug 690894. Thanks to Alex for spotting the cause of the regression.

[base/gsdevice.c]

2009-11-06T20:40:48.453064Z Robin Watts

Fix for bug 690890. We always use the CPSI_mode version of the gs_strokepath
code (when executing strokepath or ustrokepath postscript operators). This
means we better match acrobat.

This frees us to optimise the non CPSI_mode version so as to produce simpler
stroked paths with the same outlines. This should allow us to be faster in
the non strokepath cases.

[base/gxpaint.c base/gspath.h base/gxpaint.h /trunk/ghostpdl/xps/xpspath.c base/gspaint.c base/gxstroke.c base/gxclrast.c]

2009-11-06T14:23:40.138345Z Alex Cherepanov

Clamp coordinates when the path is scaled up for anti-alias rendering.
Leave 1000pt slack at the edge because the path drawing routines can't
handle values close to the edge of the representable space. Bug 690864.

[base/gxpath2.c]

2009-11-05T23:35:59.860092Z Robin Watts

Update htmldiff.pl to cope with svg files (and pdfwrite svg files).
Also update the invocation of .PS files to use gs_cet.ps

[toolbin/htmldiff.pl]

2009-11-05T22:24:30.858232Z Ray Johnston

This is the initial commit of the 'tiffsep1' device code that emits
separation files as 1-bit per pixel TIFF files, a separate file for
each separation. This is a CMYK plus Spot color device, and the
number of separations (spot colors) supported depends on the gdevdevn.h
setting of USE_COMPRESSED_ENCODING. By default this is true as long as
the sizeof(gx_color_index) is >= 8, so up to GX_DEVICE_COLOR_MAX_COMPONENTS
layers can be generated (current default 64). Without compressed color
encoding, then only 8 total (C, M, Y, K and 4 spot colors) can be
supported.

Files are named with the separation layer in ( ), e.g. x(Black).tif if
the OutputFile is 'x.tif'. Since no composite CMYK is generated, the
base file is deleted ('x.tif' in the example).

DETAILS:

This device uses a hook of the 'fill_path' device call to collect the
threshold arrays from the imager state. In case a file does not perform
a 'fill' operations, the gsdevice.c code does a dummy fill of an empty
path to allow the 'sep1_fill_path' code to convert the 'order' into
threshold arrays.s

The 'open' and 'put_params' device functions are modified to make sure
that if the clist device is being used, the 'sep1_fill_path' proc will
be re-hooked (the clist initialization overwrites some procs including
the 'fill_path' proc). The sep1_fill_path then forwards to whatever
fill_path proc was set by the gdev_prn_open or put_params.

A later commit will move the 'thresholds_from_order' function to another
common file (probably gsht1.c) and change it to generate a threshold
array of type 'gs_threshold_halftone' with NULL transfer and closure
functions. This function is in gdevtsep.c now since it is the only
device that needs it (for now) and development was easier with all
changes more or less localized (at least non-trivial ones).

The make files are modified so that the 'tiffsep1' device is included
by default (where the tiffsep device is included).

The actual halftoning is done using 32-bit writes of the dithered line
since testing showed this to be 27% faster (although more complex).

Note that the compressed color encoding (the current default) is about
half the throughput compared to direct encoding. Users that are sensitive
to performance (who isn't) and that only need 8 or less total colors
(CMYK plus 4 spot colors) will want to turn compressed color encoding
off.

[base/gsdevice.c psi/os2.mak base/bcwin32.mak base/openvms.mak base/watcw32.mak base/Makefile.in base/gdevtsep.c base/configure.ac base/unix-gcc.mak base/unixansi.mak psi/msvc32.mak base/macos-mcp.mak base/devs.mak]

2009-11-05T17:01:01.144368Z Marcos H. Woehrmann

Add support for only testing only langauges which were affected by a commit.

[toolbin/localcluster/splitjobs.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/readlog.pl toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2009-11-05T08:14:47.560103Z Hin-Tak Leung

updating the internal graphic state as in the else part; 2nd half of fix to bug 690853

[base/gdevpx.c]

2009-11-03T23:43:48.930105Z Ralph Giles

Fix a const propagation warning.

Also remove some trailing whitespace.

[base/gdevp14.c]

2009-11-03T23:43:47.356550Z Ralph Giles

Remove some unused variables from the PDF 1.4 compositor device,
fixing several warnings. Also cleans up some formatting.

[base/gdevp14.c]

2009-11-03T23:43:45.299604Z Ralph Giles

Move some static prototypes from gdevp14.h to gdevp14.c.

These two functions, internal to gdevp14.c, need forward prototypes
but where declared in the public header, causing gcc warnings when
the declarations where included in other source files.

[base/gdevp14.c base/gdevp14.h]

2009-11-03T17:54:36.738828Z Hin-Tak Leung

revert to PXL 1.1 - it is possible some old printers dislike PXL 2.1 header

[base/gdevpxut.c]

2009-11-03T16:59:25.556772Z Alex Cherepanov

Fix a line split without the '\' at the end of the line. By some reason gmake
tolerates this but MSVC nmake doesn't. Bug 690886, customer 661.

[base/lib.mak]

2009-11-03T14:39:04.429643Z Hin-Tak Leung

Use SetPageScale and SetPageOrigin to work around 16-bit limit in paths.

This is a similar but more extensive change to the last (16-bit limit in 
SetCursor), which use SetpageScale to make path co-ordinates fit within 
16-bit. In so doing some paths can become inaccurate if one of the
points are not large; so SetPageOrigin is used to shift to one such point
before the scaling. This is the last part to fix bug 690858 and bug 690860 .

[base/gdevpx.c]

2009-11-03T14:06:53.986640Z Hin-Tak Leung

Use SetPageScale to work around 16-bit limit in SetCursor.

Here SetPageScale is used so that large cursor co-ordinates can fit 
within 16-bit signed integer limit. This fixes bigpath.ps in
bug 690855, and also fixes some of the problems seen in bug 690858 and 
bug 690860.

[base/gdevpx.c]

2009-11-03T13:54:22.932026Z Hin-Tak Leung

new SetPageScale/Unset utility routine before the fix to bug 690858

[base/gdevpx.c]

2009-11-03T13:50:17.551314Z Hin-Tak Leung

new SetPageOrigin utility routine before the fix to bug 690858

[base/gdevpx.c]

2009-11-03T13:41:54.478161Z Hin-Tak Leung

fixes age-old typo.

This appears to be a typo - the gray conversion code is doing
out = (red + green + next_red) instead of (red + green + blue).

[base/gdevpx.c]

2009-11-03T13:36:48.031673Z Hin-Tak Leung

write signed 16-bit integers properly.

The pxl utlity code has never been able to write negative numbers as 
signed 16-bit integers properly. This fixes bug 690863 primarily, and also 
some of the problems seen in bug 690858, file  CATX8874.pdf mentioned 
in bug 690859, and part of the problems in bug 690860.

[base/gdevpxut.h base/gdevpxut.c]

2009-11-03T13:20:30.378093Z Hin-Tak Leung

Do rounding of co-ordinates rather than clipping.

This set of change tries to calculating the co-ordinates more accurately by
doing rounding of fractional parts instead of clipping off the fractional 
parts. This is part of the fix to bug 690869. Also needs -r1200 to work 
for the intended purpose of matching with ppmraw output.

[base/gdevpx.c]

2009-11-03T13:14:51.306299Z Hin-Tak Leung

Tightening the standard media size matching.

Drop the tolerance to 0.05 from 5/72 of an inch.
One of the test files is 36-pixels @r600 within a standard size.
Fixes bug 690866.

[base/gdevpxut.c]

2009-11-03T12:59:24.143346Z Hin-Tak Leung

flush stream data in close_device().

For a whole set of postscript files (the ps3cet set), the close_device() 
finalizer code is called before the PXL output is flushed. This causes 
the PJL job footer to be outputted in the middle of the last portion of 
PXL output, thus corrupting the PXL data. Adding a flush fixes this problem. 
Fixes one of the many problems in bug 690858.

[base/gdevpx.c]

2009-11-03T12:50:17.079568Z Hin-Tak Leung

Removes two redundant SetBrushSource black

The two SetBrushSourcewas introduced by:

r8732: marcos - Add support to pxlcolor and pxlmono for 24 bpp images.

After r8732, whenever one tries to output an image, the brush color is reset to
black. This affects later drawings that relies on a non-black brush color being
set previously and still considered being active. Fixes bug 690853.

[base/gdevpx.c]

2009-11-03T06:21:49.323464Z Ralph Giles

Add missing return type and static scope to the definitions of
pdf14_push/pop_transparency_state. Fixes a gcc warning.

[base/gdevp14.c]

2009-11-03T05:27:32.955847Z Ralph Giles

Include the implicitly required headers for gxpcolor.h in gdevp14.h.

This declares dev_color_proc_save_dc and related function pointers
before use, correcting a serious gcc warning and fixing compilation
on AIX 5.3 TL 8 SP2. Bug 690883.

[base/lib.mak base/gdevp14.h]

2009-11-02T17:36:56.958032Z Alex Cherepanov

When a stream error occurs, Ghostscript sometimes print a spurious "Additional
information" line containing uninitialized data as part of the error message.
Initialize error_string in s_init_state to fix this. Thanks to
Michael Constant for the patch. Bug 690874.

[base/stream.c]

2009-11-02T16:24:35.721695Z Marcos H. Woehrmann

Add psdcmyk to regression testing (currently only at 72/75 dpi).

[toolbin/localcluster/build.pl]

2009-11-02T05:21:28.471147Z Marcos H. Woehrmann

Quiet Ubuntu 9.10 gcc/ld warning:

./obj/gdevpsft.o: In function `T.107':
gdevpsft.c:(.text+0x992): warning: memset used with constant zero length parameter; this could be due to transposed parameters

[base/gdevpsft.c]

2009-11-01T23:36:17.798485Z Ray Johnston

Fix for indeterminism from psdcmyk and any other devices that use rgb_cs_to_spotn_cm
or other gx_cm_color_map_procs that don't set all color_info->num_components elements
of the "frac out[]" array. Fix for Bug 690713.

DETAILS:

All of the cmap_***_direct and cmap_***_halftoned functions in gxcmap.c called into
the corresponding device's color mapping proc (supplied by the dev_proc
get_color_mapping_proc) for that color space, but it is not a requirement (invariant)
that those functions set all 'num_components' elements of the array, and some did
not (such as the rgb_cs_to_spotn_cm function mentioned above.

[base/gxcmap.c]

2009-11-01T22:47:33.338243Z Alex Cherepanov

Fix a typo in a recently committed patch (rev. 10246) that broke a branch 
that handles Type 3 images with string data source in the image and file data
source in the mask. Bug 690451, customer 200.

[Resource/Init/gs_ll3.ps]

2009-11-01T19:50:29.144138Z Alex Cherepanov

Consider '0000000000 00000 n' as a free entry, issue a warning, and continue
processing xref table. Files with this error, generated by Quartz PDFContext
are getting increasingly common. Bug 690873.

[Resource/Init/pdf_main.ps]

2009-11-01T18:32:50.921078Z Alex Cherepanov

Implement support of large resource dictionaries. Store XObject dictionaries
that exceed 65534 elements as arrays of dictionaries. Increase default operand
stack limit to 300000 elements. Bug 690778, customers 850, 531.

[Resource/Init/gs_init.ps Resource/Init/pdf_main.ps Resource/Init/pdf_base.ps]

2009-11-01T15:40:28.684192Z Marcos H. Woehrmann

Always allocate pcl and xps jobs to i7 and i7a along with xps jobs (splitjobs.pl).

Fix race condition when machine goes down during regression (clustermaster.pl).

Repeated timeouts on a machine now cause it to abort the run and report this (run.pl and readlog.pl).

[toolbin/localcluster/splitjobs.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/readlog.pl toolbin/localcluster/run.pl]

2009-10-30T01:25:56.717628Z Alex Cherepanov

Work around a requirement of .image3 operator to have image and mask data
sources to be of the same type. Convert the data sources to the same type
on PostScript level. Bug 690850, customer 870.

[Resource/Init/gs_ll3.ps]

2009-10-29T02:07:58.374375Z Ray Johnston

Fix for clist setcolor when compressed color encoding is used which is the
default build case for the tiffsep and psdcmyk and others . Bug 690851.

DETAILS:

The compressed color encoding always uses 64 bit (sizeof(gx_color_index)).
The (num_components * 8) is not the correct depth (number of bits) for color
encoding in the clist. This patch detects (at run time) that compressed
color encoding is using by examining the 'my_encode_color' procedure since
there is no direct way to determine if compressed color encoding is being
used.

[base/gdevp14.c]

2009-10-27T18:13:49.866447Z Hin-Tak Leung

Adding all the commit ids ever found in svn log to the AUTHORS file.

For those I don't know the real name of, the id was duplicated as the name.
This should make it easier for somebody who wants to fill in the info.

[doc/AUTHORS]

2009-10-27T17:44:51.858107Z Hin-Tak Leung

Adding my commit id<->name mapping to the AUTHORS file

Apparently this file is used by split_changelog.py for
building the History files.

[doc/AUTHORS]

2009-10-27T17:28:17.755993Z Hin-Tak Leung

Declare binary communications explicitly for IJS, where the default behavior
isn't clear for non-MS-VC compilers.

This makes the IJS code works correctly when compiled by mingw or borland.
It also fixes some issue for Watcom. Watcom-compiled client
still seems to be buggy (as in not inter-operating with the others).
Closes bug 688714.

[ijs/ijs_client_example.c ijs/ijs_exec_win.c ijs/unistd_.h ijs/ijs_server.c]

2009-10-27T17:21:38.456605Z Hin-Tak Leung

Reset color space to eRGB just in case a previous fill/stroke
had set it to eGray. Fixes 688320.

[base/gdevpx.c]

2009-10-27T17:02:59.376757Z Hin-Tak Leung

Implements DeltaRow compression as an option, plus updated user documentation.

The new compression scheme is activated by -dCompressMode=3. 
1=RLE is still the default, and under some conditions:
1-pixel-high image (which does not compress well with DeltaRow) and out
of memory conditions (noCompression can run without allocating
memory), specifying -dCompressionMode=3 will still use the current RLE code.
These are documented in comments.

[base/gdevpx.c doc/Devices.htm base/gdevpxut.c]

2009-10-27T16:53:05.423045Z Hin-Tak Leung

custom media size patch + bug fix.

This implements the CustomMediaSize as discussed; on the way I also found an
old bug with the pxl utility code which was just written but not used (until
now). See comments within. Fixes bug 690827.

[base/gdevpxut.h base/gdevpxut.c]

2009-10-27T16:13:23.571814Z Robin Watts

Fix for bug 690831.

The test file uses a radial shading, where the final circle almost contains
the initial one, with 'extension' at the end selected.

Our code incorrectly fills the final extended circle, causing us to wipe out
all the correct fading we've done to that point.

The fix is to recognise whether we are moving 'inwards' or 'outwards', and only
to fill in the 'inwards' case.

This fixes the original issue, and causes no visible regressions.

[base/gxshade1.c]

2009-10-27T15:54:05.886068Z Robin Watts

Make htmldiff.pl output resolution information in html file.

[toolbin/htmldiff.pl]

2009-10-27T04:31:04.180870Z Michael Vrhel

Fix so that the monochrome devices do not use the non-separable blending 
operations that are used for RGB devices. This was the source of an 
indeterminism in Bug 690477. Thanks to Marcos for the detailed bug 
information.
 
DIFFERENCES EXPECTED:
  
None. Apparently no other files use the non-separable luminosity 
blending.

[base/gdevp14.c]

2009-10-26T00:20:11.207073Z Robin Watts

bmpcmp.c: Fix bounding box calculation that could cause SEGV.

[toolbin/bmpcmp.c]

2009-10-26T00:19:31.018870Z Robin Watts

Make htmldiff.pl output TITLEs for each IMG saying the source file, page,
resolution, and whether it's the candidate or reference image.

[toolbin/htmldiff.pl]

2009-10-25T12:39:53.222871Z Robin Watts

Fix for bug 687295; force transparent stroking to construct the entire path
before stroking it, thus eliminating nasty effects where edges overlap.

[base/gxstroke.c]

2009-10-23T20:17:15.860218Z Robin Watts

Another couple of tweaks to bmpcmp.c: Avoid producing bitmaps that have no
changes in (from pages with well separated changes).
Shrink bbox of bitmaps where possible.

[toolbin/bmpcmp.c]

2009-10-23T19:22:10.011416Z Robin Watts

Tweaks to bmpcmp.c.
 * 'Small' differences are shown in green, large differences in red.
 * Don't print an error message when no differences found, as the script
   does this better (and we are only looking at a page at a time).

[toolbin/bmpcmp.c]

2009-10-23T19:20:18.949144Z Robin Watts

Tiny tweak to htmldiff.pl script; now lists files which it failed to find 
changes in at the end.

[toolbin/htmldiff.pl]

2009-10-23T19:13:36.932446Z Robin Watts

Fix bounding box adjustments that were causing rendering glitch in bug 687295.

[base/gdevp14.c]

2009-10-23T07:17:56.276513Z Ralph Giles

Use document.domain instead of a hardwired value for the AJAX cgi 
request. This allows the dashboard page to function on both the 
ghostscript.com and the www.ghostscript.com server aliases.

[toolbin/localcluster/dashboard.html]

2009-10-22T18:28:22.955248Z Ralph Giles

Revert the changes from r10210. This was experimental code accidentally 
committed with an unrelated log message.

[base/gxfcache.h base/gxistate.h base/gsfont.c base/gsistate.c]

2009-10-22T18:24:04.424606Z Ralph Giles

Correct a tranposed digit in the A4Small imageable area in
the ghostpdf ppd. Bug 690814.

[lib/ghostpdf.ppd]

2009-10-22T18:23:57.528033Z Ralph Giles

Add display of the pending 'clusterpush' job queue to the dashboard.

Runs to check commits to the central repository preempt clusterpush
jobs, but it is still useful to see the queue when several jobs are
waiting.

Because we now have more than two elements, we replace the entire
'status' div element, rather than trying to find and replace each
sub-element within the div.

[base/gxfcache.h base/gxistate.h base/gsfont.c base/gsistate.c]

2009-10-22T09:44:43.697488Z Ken Sharp

Fix (pdfwrite) : Unchecked return value from pdf_write_spot_function

Details
Bug # 690796 "Invalid Halftone objects in PDF (negative object references)"

Two fixes, firstly the return value from pdf_write_spot_function() was not being
checked in pdf_write_spot_halftone. We now check the value and return an error if
required.

Secondly when unable to write a spot function because of the num_bits required we were
returning a rangecheck error. This was hidden by the failure to check the return value
noted above. The problem is that rangecheck is a special case return when called via
gdev_pdf_fill_path() and causes it to assume transparency is involved and use a
different fill method. We actually want an error so instead of returning rangecheck
we no return limitcheck instead.

[base/gdevpdfg.c]

2009-10-22T07:01:27.775454Z Michael Vrhel

Fix mistype of which procs to set to when we change the color space for a transparency group.  If we are running with a separation device with spot colors then we need to use the compressed encoding and decoding.  This fixes bug 690816.

DIFFERENCES EXPECTED:

None since it will only show up for separation devices.

[base/gdevp14.c]

2009-10-21T18:09:25.061089Z Ralph Giles

Add display of the pending 'clusterpush' job queue to the dashboard.

Runs to check commits to the central repository preempt clusterpush
jobs, but it is still useful to see the queue when several jobs are
waiting.

Because we now have more than two elements, we replace the entire
'status' div element, rather than trying to find and replace each
sub-element within the div.

[toolbin/localcluster/clustermonitor.cgi toolbin/localcluster/dashboard.html]

2009-10-21T18:09:23.409841Z Ralph Giles

Add a dashboard html page displaying the status of the local cluster.

This page retrieves the status information from the clustermonitor.cgi
script and parses it in javascript, constructing an html display. It
updates every five seconds.

This dashboard is currently installed as http://ghostscript.com/regression/

[toolbin/localcluster/dashboard.html]

2009-10-21T18:09:20.856618Z Ralph Giles

Add a cgi version of the clustermonitor script.

This is a perl cgi script which returns similar information to the
clustermonitor.pl terminal-based dashboard in a json structure for
easy parsing from javascript or other remote applications.

[toolbin/localcluster/clustermonitor.cgi]

2009-10-21T03:50:46.157782Z Michael Vrhel

Reintegration of gs_extendgraphic branch into trunk.  This fixes bug690777.pdf.  The main purpose of this commit is to relay information about q and Q operations (extended graphic state push and pops) to the pdf14 compositor.  The reason this is needed is that the softmask is part of the extended graphic state.

DIFFERENCES EXPECTED:

Bug688807.pdf has a minor progression.  Bug688159.pdf and Bug689509.pdf also reported differences but I could not see any using cmpi.  Also, we may need to take a look at the XPS output.  It was unclear to me which were regressions and which were indeterministic.

DETAILS:

The following example (as well as bug690777) drove the need for this commit.

Consider a transparency group that covers an entire page and let there be a 
soft mask that is set as part of a graphic state.  Let there be 2 bands in 
this clist and let the soft mask bounding box be such that it intersects band 
1 and band 2.   Currently, there will be  a Push Transparency Soft Mask and an 
End Transparency Soft Mask compositor action added into the clist for BOTH 
bands.  Now, let there be a transparency group that is drawn only into band 
one. There will be a Push Transparency group and End Transparency group into 
band 1.  Now let there be a Q followed by a transparency group that is drawn 
only in band 2.  What should happen, is that the soft mask should no longer be 
present due to the Q operation.  Unfortunately, in the current architecture, 
there is no compositor action to let band 2 know that the soft mask is not 
valid to use.

Another example is a case were we set a graphic state with a softmask, which 
will introduce the Push Transparency Soft Mask and an End Transparency Soft 
Mask compositor actions.  Follow this by a q operation. Set another graphic 
state, with another softmask.  This introduces another Push Transparency Soft 
Mask and an End Transparency Soft Mask compositor action.  During the clist 
reader stage the maskbuffer for our pdf14 context will be the last soft mask 
that was specified. Now on the writer side do a Q and draw.  What should occur 
is that the first transparency softmask should be active.  Unfortunately, this 
information is not communicated through the clist AND the old soft mask buffer 
has been lost.

The primary issue in these examples, is that we need to detect and store in 
the clist graphic state changes that occur and have an impact on our 
transparency state.

To solve this problem, the following is proposed:

1) At the PDF interpreter level for the /q and /Q operators, check if the page 
uses transparency. If it does, then execute a .pushextendedgstate for /q and 
a .popextendedgstate for /Q.

2) Add zpushextendedgstate and zpopextendedgstate commands in the c code. 
These operations will respectively execute a gs_push_transparency_state and a 
gs_pop_transparency_state during the clist writer process.  Deep in the 
graphics library there will also be gx_push_transparency_state and 
gx_pop_transparency_state.  These are executed during the clist reader side.

4) Two new device procedures were added related to the transparency state.
(push_transparency_state and pop_transparency_state).  These were added at
the end of the device procs for backward compatibility with older devices.

4) A change to the pdf14 ctx stack such that the maskbuffers are a 
stack.   In fact, they are now reference counted since they can be multiple
copies (actually pointers to the same data buffer) in the mask buffer stack.

5) A flag xstatepending was added to the graphic state to communicate when a softmask transparency
group pop had occurred.  In that case, we need to keep track of the q and Q 
operations.  Otherwise, they are ignored early in the process to reduce the
number of compositor actions.

In addition fixes were made to the background content handling (BC) of the soft mask.
Now the softmask bounding box is the same as the parent group unless the BC value
is white which would indicate that the BC will not have any effect on areas drawn outside
the softmask group bounding box.  Changes were made in the code that computes the band range for the 
softmask group.

[base/gdevrops.c base/gxclimag.c base/gxistate.h base/gdevdflt.c base/gdevbbox.c base/gxcomp.h psi/ztrans.c base/gxclipm.c base/gsovrc.c base/gdevpdft.c /trunk/gs base/gxclip2.c base/gxdevcli.h base/gdevp14.c Resource/Init/pdf_ops.ps base/gxclist.c base/gdevp14.h base/gstrans.c base/gstrans.h base/gxclip.c]

2009-10-21T01:18:51.593536Z Marcos H. Woehrmann

Allow for newly added regression files to produce errors (compare.pl).

Fixed missing nice on some commands (build.pl).

Fixed spurious error message when running svn commit regression  (run.pl).

Reordered code so that the user regression queue is updated even while a regression run is in progress (clustermaster.pl).

Initial check-in (clustermonitor.pl).

[toolbin/localcluster/clustermonitor.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/build.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2009-10-21T01:11:47.945166Z Marcos H. Woehrmann

Perform rsync based on checksum, not mod-time & size.

[toolbin/localcluster/clusterpush.pl]

2009-10-20T23:10:13.904636Z Marcos H. Woehrmann

Modififed clusterpush.pl to print out the rsync status messages
(there should probably be a command line option to disable this).

[toolbin/localcluster/clusterpush.pl]

2009-10-20T21:28:46.305832Z Marcos H. Woehrmann

Report build failures with more detail.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/readlog.pl toolbin/localcluster/build.pl toolbin/localcluster/run.pl]

2009-10-20T19:17:09.055802Z Hin-Tak Leung

Handles images rotated by 90/-90/180 degree as high level object.

This change implement rotated image as a high-level object by
emitting a PXL rotation intruction, draw the image with rotated
user co-ordinate, then the reverse PXL rotation. Fixes bug 690733.

[base/gdevpx.c]

2009-10-20T16:53:11.304991Z Robin Watts

Fix for bug 690805.

If a dash pattern exactly fits into the path to be stroked, a 0 length dash
note is emitted, with (0,0) tangents. This causes an extra cap to be put on
the path when rendering, causing stray marks.

The fix is to recognise the case when we are about to emit a dash note with
no useful information in the note (i.e. if udx and udy are 0, then don't
emit the dash note). This leaves the renderer free to make it's own decision.

Examination of the bitmaps shows that all the differences are in fact
improvements. The following files are identified by the localcluster as
being differences, but no differences are found in local testing:

tests_private/pcl/pcl5efts/fts.1140.pdf.pkmraw.600.0 pcl i7 i7
tests_private/pcl/pcl5efts/fts.1140.pdf.ppmraw.600.0 pcl i7 imac
tests_private/pcl/pcl5efts/fts.1140.pdf.ppmraw.75.0 pcl macpro macpro
tests_private/pcl/pcl5efts/fts.2380.pdf.ppmraw.600.0 pcl macpro i7
tests_private/ps/ps3cet/09-36.PS.pbmraw.300.0 gs i7 snow
tests_private/ps/ps3cet/09-36.PS.pbmraw.300.1 gs snow i7
tests_private/ps/ps3cet/09-36.PS.pdf.pkmraw.300.0 gs i7a i7
tests_private/ps/ps3cet/09-36.PS.pdf.ppmraw.300.0 gs snow i7a
tests_private/ps/ps3cet/09-36.PS.pgmraw.300.0 gs macpro i7a
tests_private/ps/ps3cet/09-36.PS.pgmraw.300.1 gs macpro snow
tests_private/ps/ps3cet/09-36.PS.pkmraw.300.0 gs i7a i7
tests_private/ps/ps3cet/09-36.PS.pkmraw.300.1 gs i7 WZIM
tests_private/ps/ps3cet/09-36.PS.ppmraw.300.0 gs macpro i7
tests_private/ps/ps3cet/09-36.PS.ppmraw.300.1 gs i7 i7a
tests_private/ps/ps3cet/11-21.PS.pbmraw.300.0 gs i7a i7
tests_private/ps/ps3cet/11-21.PS.pbmraw.300.1 gs i7 i7a
tests_private/ps/ps3cet/11-21.PS.pdf.pkmraw.300.0 gs snow snow
tests_private/ps/ps3cet/11-21.PS.pdf.ppmraw.300.0 gs i7 i7
tests_private/ps/ps3cet/11-21.PS.pgmraw.300.0 gs macpro i7a
tests_private/ps/ps3cet/11-21.PS.pgmraw.300.1 gs i7 snow
tests_private/ps/ps3cet/11-21.PS.pkmraw.300.0 gs i7 i7a
tests_private/ps/ps3cet/11-21.PS.pkmraw.300.1 gs macpro WZIM
tests_private/ps/ps3cet/11-21.PS.ppmraw.300.0 gs macpro i7a
tests_private/ps/ps3cet/11-21.PS.ppmraw.300.1 gs macpro macpro
tests_private/ps/ps3cet/11-28.PS.pbmraw.300.0 gs i7 i7a
tests_private/ps/ps3cet/11-28.PS.pbmraw.300.1 gs snow snow
tests_private/ps/ps3cet/11-28.PS.pdf.pkmraw.300.0 gs i7 macpro
tests_private/ps/ps3cet/11-28.PS.pdf.ppmraw.300.0 gs i7a snow
tests_private/ps/ps3cet/11-28.PS.pgmraw.300.0 gs i7a i7
tests_private/ps/ps3cet/11-28.PS.pgmraw.300.1 gs i7a macpro
tests_private/ps/ps3cet/11-28.PS.pkmraw.300.0 gs snow macpro
tests_private/ps/ps3cet/11-28.PS.pkmraw.300.1 gs i7 snow
tests_private/ps/ps3cet/11-28.PS.ppmraw.300.0 gs macpro i7
tests_private/ps/ps3cet/11-28.PS.ppmraw.300.1 gs macpro i7
tests_private/xps/xpsfts-a4/fts_43xx.xps.bitrgb.72.0 xps macpro imac

[base/gxpdash.c]

2009-10-20T16:18:29.688093Z Robin Watts

Simple .bmp image differ/slicer, for use with htmldiff.pl.

[toolbin/bmpcmp.c]

2009-10-20T16:13:56.684584Z Robin Watts

Simple perl script to produce html+images from regression lists as produced
by localcluster regression tests.

[toolbin/htmldiff.pl]

2009-10-20T07:59:42.576899Z Ken Sharp

Fix (ps2write) : Allow use of /Indexed colour spaces in PostScript output.

Details
Although opdfread.ps has always contained code to handle /Indexed colour spaces,
ps2write has never emitted any. This is because it is always executed with a PDF
CompatabilityLevel of 1.2, and PDF 1.2 doesn't support Indexed colour spaces.

PostScript, however, does and it seems unreasonable to deny the use of these spaces
when we are emitting PostScript.

This code checks to see if we are emitting PostScript when comparing the compatibility 
level to see if Indexed spaces are allowed, and permits /Indexed for PostScript.

This change did, however, expose a number of flaws in the opdfread code when handling
Indexed spaces. These are all due to the fact that an Indexed space can use an existing
space as its base, and this can lead to multiple attempts to resolve or flatten the 
underlying space.

FunctionToProc is altered to check it has been passed a function dictionary to convert
and to ignore the operation if not.

SubstitutePDFColorSpace allows for CIEBasedA and CIEBasedABC spaces, which may be the
result of a prior substitution.

ResolveArrayElement checks the element to see if it is passed a procedure containing
an integer followed by a procedure, before executing the procedure. This is because a
colour space which has already been resolved may have a procedural look up and 
executing that disturbs the stack.

DecodeArrays generated an incorrect Decode array for Indexed colour spaces.

[base/gdevpdfc.c Resource/Init/opdfread.ps]

2009-10-19T20:24:53.770533Z Ralph Giles

Print a warning when invoking the 'so' unix makefile targets from pmake.

Details:

The make included in freebsd 7.0 appears to have trouble matching or 
collapsing target paths of the form ./bin/../sobin/gsc as GSSOC_XENAME 
expands to in the recursive shared build make invocation. GNU make works 
fine on the same platform.

Note that we use the @ prefix to hide the command output, which may also 
be a gmake-ism, but it works on freebsd 7.0.

[base/unix-dll.mak]

2009-10-17T18:59:06.072895Z Alex Cherepanov

Finish implementation of ColorSpace extraction from JPX streams. RGB,
Gray, and ICC-based color spaces are extracted and passed to PDF interpreter.
Palette colors need no further processing in PDF interpreter because
they are expanded on C level. Bug 690207.

[Resource/ColorSpace/sGray Resource/ColorSpace/sRGB Resource/Init/pdf_draw.ps]

2009-10-16T14:02:04.066085Z Ken Sharp

Fix (ps2write) : Problems with type 3 fonts causing errors

Details
Typo in the /NotDef function, used as a /.notdef glyph i type 3 fonts emitted by
ps2write. There was a 'o setlinewidth' which should be a '0 setlinewidth'.

[Resource/Init/opdfread.ps]

2009-10-16T07:22:24.989326Z Ken Sharp

Fix (ps2write) : Pattern colour spaces broken

Details
The CheckPattern routine in opdfread.ps insisted that a Pattern should contain a /Type
key in the pattern dicitonary and a value of /Pattern. The spec says this key is
optional and GS does not write it. This meant that all Pattern colour spaces failed
when checked by opdfread, and therefore the output of ps2write did not work.

The code now checks if a Type key is present before checking its value, and does not
fail if it is not present.

[Resource/Init/opdfread.ps]

2009-10-14T09:15:43.246903Z Marcos H. Woehrmann

Initial checkin of script to gather performance data based on revision.

[toolbin/performance.pl]

2009-10-13T07:16:32.913558Z Ken Sharp

Fix (ps2write) : Problem with TrueType /.notdef encoding

Details
Bug #690809 "ps2write problem with some TrueType fonts"

When building a CharStrings dictionary, to map from glyph names to GIDs, the code would
start by correctly encoding /.notdef at GID 0. However the InverseEncoding path through
the code could then re-encode /.notdef at a different GID. This could lead to the file
failing to work.

Now check the glyph name and, if it is /.notdef, do not re-encode it.

[Resource/Init/opdfread.ps]

2009-10-12T02:27:21.732148Z Alex Cherepanov

Add sRGB and a similar one-component color space for the upcoming patch
that will extract color space information from JP2 stream. Bug 690207.

[Resource/ColorSpace/sGray Resource/ColorSpace/sRGB]

2009-10-08T01:53:10.398646Z Alex Cherepanov

Fix a long-standing bug in ps2ascii conversion that caused concatenation of
the lines within a paragraph. Bug 690806.

[lib/ps2ascii.ps]

2009-10-06T11:44:51.043694Z Alex Cherepanov

Skip non-PDF files during enumeration of embedded file streams in PDF
portfolio. Bug 690422, customer 531.

[Resource/Init/pdf_main.ps]

2009-10-06T08:22:42.843465Z Ken Sharp

Fix (pdfwrite) : Undo escapement of PostScript strings when writing XMP metadata for
PDF/A

Details
Bug #690471 "Parantheses escaped in xmp metadata"

Technically this is covered in gs/doc/ps2pdf.htm under -sDSCEncoding which states that 
the default behaviour is simply to copy the data directly to the file with no
translation.

However it seems unreasonable not to at least undo the PostScript escapement which we 
must have in order to set the PostScript string and which will cause PDF/A
verification failures if we don't.

Modified the default case (which does not convert to Unicode) to undo the escapement
only.

[base/gdevpdfe.c]

2009-10-06T07:33:33.759516Z Ken Sharp

Fix (pdfwrite) : The PDFACompatibilityPolicy switch was being overwritten by PDFA on
setpagedevice

Details
Bug #690803
The PDFA switch is stored in the page device dictionary, and the device member is reset
from the stored setting on each setpagedevice. This was defeating the 
PDFACompatibilityPolicy setting which tried to disable PDF/A production when the input
could not be converted to a compliant PDF/A file.

Because the PostScript value is subject to save and restore, its all but impossible to
alter the PostScript saved value. So added a new device member 'AbortPDFAX' which can
only be set from C. This is set when non-compliant input is detected and prevents the
emission of (currently) PDF/A file (may add PDF/X in future). It does this by resetting
the device PDFA member every time the device parameters are set.

[base/gdevpdfm.c base/gdevpdfx.h base/gdevpdfp.c base/gdevpdfb.h]

2009-10-05T16:07:19.389735Z Ralph Giles

Correct typos in the MacOS X linker options. Bug 690783.

[base/unix-dll.mak]

2009-10-05T09:27:44.398728Z Ken Sharp

Fix (pdfwrite) : incomplete submission #10124

Details
Somehow in the confusion of IP address changes and local cluster regression tests I
managed to only commit a partial fix for issue #690767. The missing line of code is
in this patch.

[base/gdevpdtd.c]

2009-10-05T07:10:40.648039Z Ken Sharp

Fix (pdfwrite) : Improve symbolic font detection

Details
Bug #690767 "Problems with PDFA"

Revision 9944 altered the way that we detect whether a font is symbolic or not. This 
involved several changes; fixing existing broken code, adding /.notdef detection and
attempting to check encoded positions of glyphs before deciding a font was non-symbolic.

The encoding position test was incorrect for TrueType fonts, however, leading to some
fonts being needlessly declared as symbolic. This patch moves the encoding test to the
font descriptor assembly, which is the correct place to test it.

While this resolves the customer issue, it is not a complete solution. A truly symbolic
TrueType font would still be written as a symbolic font and when creating PDF/A files
there are strict limitations on the form of TrueType fonts. In particular they must only
contain a single CMAP table. Because we do not completely generate TrueType fonts for
embedding, but copy some tables, we cannot meet this restriction.

This will continue to be a potential problem until the TrueType font embedding code is
rewritten properly.

[base/gdevpdtd.c base/gdevpdtw.c base/gdevpdtd.h]

2009-10-05T01:37:52.593906Z Alex Cherepanov

Fix incorrect calculation of the page size in cljet5 driver that returned the
size in inches instead of points causing /rangecheck in .installpagedevice .
Bug 690799, customer 870.

[base/gdevclj.c]

2009-10-04T12:42:07.575694Z Alex Cherepanov

Fix SEGV caused by unknown %device% prefix. Add missing check for return code
during lib path parsing. Thanks to Piotr Strzelczyk for the patch. Bug 690800.

[psi/zfile.c]

2009-10-03T16:41:07.412223Z Alex Cherepanov

Silently ignore point displacement request when the point number is out of
valid range. This patch has been backported from FreeType2. Bug 690795.

[base/ttinterp.c]

2009-10-02T23:59:45.611838Z Marcos H. Woehrmann

Lots of general code cleanup.
Fixed termination of long jobs on some systems.
Added explicit detection of seg faults with pdfwrite.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/readlog.pl toolbin/localcluster/build.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2009-10-02T22:34:36.678844Z Ralph Giles

Update the Adobe-CNS1 CMap resource to supplement 6.

[Resource/CMap/Adobe-CNS1-6 Resource/CMap/ETHK-B5-V Resource/CMap/HKscs-B5-V Resource/CMap/UniCNS-UTF32-V Resource/CMap/ETHK-B5-H Resource/CMap/HKscs-B5-H Resource/CMap/UniCNS-UTF16-V Resource/CMap/UniCNS-UTF32-H Resource/CMap/UniCNS-UTF8-V Resource/CMap/UniCNS-UTF16-H Resource/CMap/UniCNS-UTF8-H]

2009-10-01T14:27:36.870724Z Ray Johnston

Fix for segfault when peekstring requests more data than remains in a
%rom% file. Bug 690697.

DETAILS:

The EOFC was not being set correctly, so a subsequent operation would have
cursor.r values that were invalid. Refer to the invariant in the documentation
in stream.h for the stream_s structure:

     s->position represents the stream position as of the beginning of the
     buffer, so the current position is s->position + (s->srptr + 1 - s->cbuf).

Note that we must not return EOFC when reading exactly the remaining number of
bytes in a file since this will result in the stream being closed. PCL relies
on the stream remaining open after reading the number of bytes in the file.

[base/gsiorom.c]

2009-10-01T03:28:46.061833Z Marcos H. Woehrmann

Clusterpush.pl now tests all languages.
Added error checking to builds.
Disabled pgmraw testing for xps.

[toolbin/localcluster/splitjobs.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/readlog.pl toolbin/localcluster/build.pl toolbin/localcluster/run.pl]

2009-10-01T01:22:52.434995Z Masaki Ushizaka

A quick dirty hack to enable reading of wts plane files (wts_plane_x) on 64 bit machines.  Wts plane files contain a image of little endian 32 bit specific structure with a pointer, and was preventing wtsimdi device to run on 64 bit machines.
Tested on little endian 32 and 64 bit machines.  Should not change anything on 32 bit machines with current wts plane files.  Hope to work on big endian machines but not tested.
Bug #690710.

[base/gswts.c]

2009-09-30T00:56:07.061280Z Marcos H. Woehrmann

First cut at a working clusterpush.pl (complete with documentation!).

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/clusterpush.txt]

2009-09-29T00:18:30.610000Z Alex Cherepanov

Force out-of-range values of color mask to the valid range by calculating
bitwise 'and' with the maximum color value. Experiments show that this is what
AR does. Earlier code mapped out-of-range values to the nearest valid value.
Bug 690786, customer 531.

[Resource/Init/pdf_draw.ps]

2009-09-28T22:07:08.267973Z Alex Cherepanov

Draw a smooth curve through the points of Ink annotation. The algorithm Adobe
uses is unpublished but our curve is close enough to Adobe when the points
follow a smooth path. For random points the curve is different but looks
more logical than Adobe's. Bug 690758, customer 580.

[psi/int.mak Resource/Init/pdf_draw.ps psi/zpdfops.c]

2009-09-28T18:40:49.994854Z Ralph Giles

Fix some broken documentation links. Bug 690787.

[doc/Develop.htm doc/Commprod.htm]

2009-09-28T17:16:24.723655Z Ralph Giles

Also set the correct media type on the documenation style sheet.

[doc/gs.css]

2009-09-28T17:14:43.100223Z Ralph Giles

Set a text/html media type on the html documentation so it can
be served directly out of svn.

[doc/History7.htm doc/Projects.htm doc/History8.htm doc/Use.htm doc/Readme.htm doc/Deprecated.htm doc/Source.htm doc/Install.htm doc/Changes.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm doc/Commprod.htm doc/Release.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm doc/Ps2ps2.htm doc/Fonts.htm doc/Develop.htm doc/Ps2pdf.htm doc/Helpers.htm doc/Psfiles.htm doc/Lib.htm doc/Hershey.htm doc/News.htm doc/Details8.htm doc/Make.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm doc/index.html doc/History3.htm doc/Ps2epsi.htm doc/History4.htm doc/Details.htm doc/History5.htm doc/History6.htm]

2009-09-28T12:28:27.246472Z Alex Cherepanov

Fix line endings and a corresponding file attribute in a recently added file.

[psi/zpdfops.c]

2009-09-28T05:30:56.923097Z Marcos H. Woehrmann

Added clusterpush.pl.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/clusterpull.sh toolbin/localcluster/build.pl toolbin/localcluster/clusterpush.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2009-09-26T05:34:48.796753Z Ralph Giles

Revert the change to EOF handling in the romfs iodevice. It fixed the 
segfault, but broken compiled-in font access on PCL. Bug 690697.

[base/gsiorom.c]

2009-09-25T23:16:42.622069Z Ralph Giles

Improve EOF detection with the romfs iodevice. Fixes a segfault
loading shorter resources. Patch from Alex Cherepanov, bug 690697.

Details:

Resources are loaded using the --run-- operator, which looks into
the first 1023 bytes of the file to check for PDF, etc. It calls
.peekstring which uses s->end_status to detect the end of the file,
but s_block_read_process() didn't set it, allowing repeated reading
of the same block and the file position to run off the end of the
buffer. This was the cause of the segfault.

We now use '>=' instead of '==' when checking the file position to
avoid the overrun, and raise the EOF flag when the last block of the
file is read. This can be done because the whole block is always
decompressed and copied to the stream buffer.

[base/gsiorom.c]

2009-09-25T14:55:13.694603Z Ken Sharp

Fix (pdfwrite) : Remove limit on images in patterns when creating later versions of PDF

Details
There was a fixed limit of 64Kb on images used by Pattern colour spaces in early
versions of Acrobat (presumably using a string for storage). This limit does not apply
from Acrobat 5 onwards so the size test has been amended to also consider the version
of PDF being produced before raising an error.

[base/gdevpdfv.c]

2009-09-25T14:19:13.610976Z Ray Johnston

Fix for transparency problem, caused by the alpha parameters in the ExtGState
in the PDF interpreter (dictstack) not being maintained properly.
Bug 690770 for customer #1110. Thanks to Michael Vrhel for analyzing the PDF
to find the area that the PDF interpreter was mishandling.

DETAILS:

The ExtGState is kept as values in the dictionaries on the dictstack and are
sent to the graphics library as needed using '.set***alpha' operators. The
CA and ca values were properly set to 1 in the graphics library when the Do
operator was used to execute Form or Image objects, but the corresponding
FillConstantAlpha and StrokeConstantAlpha values were not being set in the
ExtGState so any operations in a Form that set the values in the graphics
library from the ***ConstantAlpha values in the ExtGState could set them
to incorrect values.

[Resource/Init/pdf_draw.ps]

2009-09-25T09:12:10.671327Z Ken Sharp

Fix (pdfwrite) : Stricter checking when converting type 4 to type 1 masked image

Details
Bug #690704 "Regression: seg fault with pdfwrite"

pdfwrite was performing an optimisation to convert type 4 masked images, which are only
supported in PDF 1.3 and above, into type 1 masked images which are supported in all 
versions.

However the test was faulty, assuming that a one bit per component image was always
suitable. If the image had multiple components the result was incorrect and when the
input was from PCL could lead to errors.

[base/gdevpdfi.c]

2009-09-25T01:29:07.733105Z Ralph Giles

Update the CMap resources with the new, open source versions of
the files for the Identity, Adobe-CNS1, Adobe-GB1, Adobe-Japan1,
Adobe-Japan2 and Adobe-Korea1 CMap resources.

Aside from the copyright and license header change and a bump to the
minor CMapVersion field, these versions incorporate the following
changes over our previous set of CMap resources:

     Identity-H has many new ranges,
     UniGB-UTF8-H  bumped to supplement 5,
     UniGB-UTF16-H bumped to supplement 5,
     UniGB-UTF32-H has some character updates.

These are still copyright Adobe, but now allow modification and require
attribution on binaries. Previously they were licensed only for verbatim
redistribution.

[Resource/CMap/78-H Resource/CMap/Hojo-H Resource/CMap/UniHojo-UCS2-V Resource/CMap/90pv-RKSJ-H Resource/CMap/CNS2-H Resource/CMap/RKSJ-H Resource/CMap/78-V Resource/CMap/KSCpc-EUC-H Resource/CMap/Hojo-V Resource/CMap/90pv-RKSJ-V Resource/CMap/CNS2-V Resource/CMap/Hiragana Resource/CMap/GBT-EUC-H Resource/CMap/Roman Resource/CMap/RKSJ-V Resource/CMap/HKdlb-B5-H Resource/CMap/UniKS-UTF32-H Resource/CMap/KSCpc-EUC-V Resource/CMap/UniHojo-UTF8-H Resource/CMap/Adobe-Korea1-0 Resource/CMap/UniKS-UCS2-H Resource/CMap/Adobe-Korea1-1 Resource/CMap/Adobe-Korea1-2 Resource/CMap/GBT-EUC-V Resource/CMap/78-RKSJ-H Resource/CMap/UniJISX02132004-UTF32-H Resource/CMap/HKdlb-B5-V Resource/CMap/HKgccs-B5-H Resource/CMap/83pv-RKSJ-H Resource/CMap/UniKS-UTF32-V Resource/CMap/UniJIS2004-UTF16-H Resource/CMap/EUC-H Resource/CMap/UniHojo-UTF32-H Resource/CMap/UniHojo-UTF8-V Resource/CMap/UniGB-UCS2-H Resource/CMap/HKscs-B5-H Resource/CMap/HKm471-B5-H Resource/CMap/90msp-RKSJ-H Resource/CMap/UniKS-UCS2-V Resource/CMap/78-RKSJ-V Resource/CMap/HKgccs-B5-V Resource/CMap/UniJISX02132004-UTF32-V Resource/CMap/GBpc-EUC-H Resource/CMap/Add-H Resource/CMap/UniJIS2004-UTF16-V Resource/CMap/Adobe-GB1-0 Resource/CMap/B5pc-H Resource/CMap/KSC-EUC-H Resource/CMap/Adobe-GB1-1 Resource/CMap/EUC-V Resource/CMap/UniHojo-UTF32-V Resource/CMap/Adobe-GB1-2 Resource/CMap/Adobe-GB1-3 Resource/CMap/UniGB-UCS2-V Resource/CMap/HKscs-B5-V Resource/CMap/HKm471-B5-V Resource/CMap/Adobe-GB1-4 Resource/CMap/90msp-RKSJ-V Resource/CMap/Adobe-GB1-5 Resource/CMap/UniCNS-UTF32-H Resource/CMap/GBpc-EUC-V Resource/CMap/Add-V Resource/CMap/B5pc-V Resource/CMap/Ext-RKSJ-H Resource/CMap/KSC-EUC-V Resource/CMap/Hojo-EUC-H Resource/CMap/UniJISPro-UCS2-V Resource/CMap/GBT-H Resource/CMap/UniKS-UTF8-H Resource/CMap/GBK-EUC-H Resource/CMap/UniCNS-UTF32-V Resource/CMap/Ext-RKSJ-V Resource/CMap/Hojo-EUC-V Resource/CMap/UniGB-UTF8-H Resource/CMap/Adobe-Japan1-0 Resource/CMap/GBT-V Resource/CMap/UniKS-UTF8-V Resource/CMap/UniJIS2004-UTF8-H Resource/CMap/Adobe-Japan1-1 Resource/CMap/GBK-EUC-V Resource/CMap/UniKS-UTF16-H Resource/CMap/Adobe-Japan1-2 Resource/CMap/Adobe-Japan1-3 Resource/CMap/Adobe-Japan1-4 Resource/CMap/Adobe-Japan1-5 Resource/CMap/90ms-RKSJ-H Resource/CMap/Adobe-Japan1-6 Resource/CMap/UniJIS-UTF32-H Resource/CMap/GB-EUC-H Resource/CMap/H Resource/CMap/UniGB-UTF8-V Resource/CMap/B5-H Resource/CMap/UniJIS2004-UTF8-V Resource/CMap/UniKS-UTF16-V Resource/CMap/UniJIS-UCS2-H Resource/CMap/90ms-RKSJ-V Resource/CMap/UniHojo-UTF16-H Resource/CMap/V Resource/CMap/UniJIS-UTF32-V Resource/CMap/GB-EUC-V Resource/CMap/KSC-H Resource/CMap/UniJISPro-UTF8-V Resource/CMap/B5-V Resource/CMap/Katakana Resource/CMap/HKdla-B5-H Resource/CMap/UniJIS-UCS2-V Resource/CMap/Identity-H Resource/CMap/UniHojo-UTF16-V Resource/CMap/GBKp-EUC-H Resource/CMap/KSC-V Resource/CMap/GBK2K-H Resource/CMap/UniCNS-UTF16-H Resource/CMap/UniGB-UTF32-H Resource/CMap/HKdla-B5-V Resource/CMap/Identity-V Resource/CMap/UniCNS-UCS2-H Resource/CMap/GBKp-EUC-V Resource/CMap/GBK2K-V Resource/CMap/UniCNS-UTF16-V Resource/CMap/UniGB-UTF32-V Resource/CMap/Adobe-CNS1-0 Resource/CMap/UniJIS-UTF8-H Resource/CMap/Adobe-CNS1-1 Resource/CMap/Adobe-CNS1-2 Resource/CMap/Adobe-CNS1-3 Resource/CMap/UniCNS-UCS2-V Resource/CMap/Adobe-CNS1-4 Resource/CMap/GB-H Resource/CMap/Adobe-CNS1-5 Resource/CMap/Adobe-Japan2-0 Resource/CMap/KSCms-UHC-H Resource/CMap/Add-RKSJ-H Resource/CMap/UniJISX0213-UTF32-H Resource/CMap/UniJIS-UTF8-V Resource/CMap/UniJIS-UTF16-H Resource/CMap/GB-V Resource/CMap/KSCms-UHC-HW-H Resource/CMap/KSCms-UHC-V Resource/CMap/HKm314-B5-H Resource/CMap/Add-RKSJ-V Resource/CMap/UniJISX0213-UTF32-V Resource/CMap/UniJIS-UTF16-V Resource/CMap/UniCNS-UTF8-H Resource/CMap/KSCms-UHC-HW-V Resource/CMap/UniJIS-UCS2-HW-H Resource/CMap/HKm314-B5-V Resource/CMap/Hankaku Resource/CMap/ETen-B5-H Resource/CMap/ETenms-B5-H Resource/CMap/UniCNS-UTF8-V Resource/CMap/NWP-H Resource/CMap/CNS1-H Resource/CMap/WP-Symbol Resource/CMap/UniJIS-UCS2-HW-V Resource/CMap/UniGB-UTF16-H Resource/CMap/78-EUC-H Resource/CMap/ETen-B5-V Resource/CMap/ETenms-B5-V Resource/CMap/NWP-V Resource/CMap/CNS1-V Resource/CMap/UniGB-UTF16-V Resource/CMap/78-EUC-V Resource/CMap/CNS-EUC-H Resource/CMap/ETHK-B5-H Resource/CMap/Ext-H Resource/CMap/KSC-Johab-H Resource/CMap/78ms-RKSJ-H Resource/CMap/UniJIS2004-UTF32-H Resource/CMap/GBTpc-EUC-H Resource/CMap/CNS-EUC-V Resource/CMap/ETHK-B5-V Resource/CMap/Ext-V Resource/CMap/KSC-Johab-V Resource/CMap/78ms-RKSJ-V Resource/CMap/UniHojo-UCS2-H Resource/CMap/UniJIS2004-UTF32-V Resource/CMap/UniJISPro-UCS2-HW-V Resource/CMap/GBTpc-EUC-V]

2009-09-23T01:42:55.789973Z Alex Cherepanov

Implement rendering of PDF Ink annotation without appearance stream. PDF
Spec doesn't say how to connect points in the annotation. This version uses
simple lineto operation but Acrobat uses curves for smoother look. 
Bug 690758, customer 580.

DETAILS:
The drawing of the line through the given points is implemented in C as a
custom operator to facilitate further improvements.

[psi/int.mak psi/zpdfops.c Resource/Init/pdf_draw.ps]

2009-09-22T19:19:22.702941Z Marcos H. Woehrmann

Fixed bug in automatic speed tuning of local cluster nodes and modified build process to make use of fixed parallel makefiles.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/run.pl toolbin/localcluster/compare.pl]

2009-09-22T16:53:51.759845Z Marcos H. Woehrmann

Local cluser regression changes:

Enabled minimal XPS and SVG testing.
Improved error reporting (errors and timeouts are now differentiated as are input errors vs. pdfwrite produced pdf file reading errors.

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/readlog.pl toolbin/localcluster/build.pl toolbin/localcluster/compare.pl]

2009-09-21T19:38:30.162606Z Ray Johnston

Correct placement of declaration to allow wts devices to compile on MSVC.

[base/gdevwts.c]

2009-09-21T15:10:25.830219Z Ken Sharp

Fix (type 1 parser) : Correct logical flaw in SEAC parsing

Details
Bug #690720 "Regression: pdfwrite generates bad pdf files from PostScript files"

The Type 1 font routine to detect SEAC (Single Encoding Accented Character) glyphs and
return the component glyphs, 'gs_type1_piece_codes' made a faulty assumption that a
SEAC glyph was purely composed of two components and that any glyph with a path
construction operation could not be a SEAC.

This restriction is, unfortunately, not documented in the spec. The Genoa test file
16-10.ps includes a font with SEAC glyphs which also contain path construction
operations. The failure to properly detect the SEAC was causing pdfwrite not to emit 
the component glyphs when subsetting fonts, resulting in PDF files containing invalid
fonts.

Fixing this then revealed that the reduced type 1/type 2 font interpreter used for
detecting SEAC glyphs did not properly handle a number of type 2 instructions. This
patch also adds support for hstemhm, vstemhm, hintmask and cntrmask. 

Because we do not have a full featured CFF parser in C yet, it was not possible to add
full support for the callgsubr operator (global subroutines are apparently not available
to the reduced interpreter). If the relevant gsubr contained the endchar for the glyph,
then this causes the interpreter to fail as we cannot process the subr.

Since SEAC operations are deprecated in type 2 fonts, and a gsubr completion of a SEAC
is extremely unlikely, I've chosen to return when a callgsubr is encountered and treat
the glyph as not being a SEAC. This may need to be revised in future.

[base/gxtype1.c]

2009-09-19T17:17:32.098742Z Marcos H. Woehrmann

Normalize machine times so the fastest machine is 1 rather than the average machine.

[toolbin/localcluster/clustermaster.pl]

2009-09-19T02:22:31.474412Z Marcos H. Woehrmann

Added the machine name to log output and check for matching md5sum in last N regression runs (to try to deal with indeterminisms).

[toolbin/localcluster/clustermaster.pl toolbin/localcluster/readlog.pl toolbin/localcluster/build.pl toolbin/localcluster/compare.pl]

2009-09-18T23:07:41.949391Z Ralph Giles

Remove an unncessary keyword substitution flags from the Adobe CMaps.

These files don't have an RCS/SVN version header, so the substitution
could only cause problems. In the case of the two Identity-UTF16 CMap
files which are owned by Artifex and do have version headers, I've 
reduced the substitutions to just the 'Id' keyword to match the rest of 
the source.

[Resource/CMap/78-H Resource/CMap/GB-RKSJ-H Resource/CMap/Hojo-H Resource/CMap/CNS06-RKSJ-H Resource/CMap/Adobe-Japan1-90pv-RKSJ Resource/CMap/Adobe-CNS1-UCS2 Resource/CMap/GBK-EUC-UCS2 Resource/CMap/UniHojo-UCS2-V Resource/CMap/CNS2-H Resource/CMap/90pv-RKSJ-H Resource/CMap/Adobe-Japan1-UCS2 Resource/CMap/RKSJ-H Resource/CMap/78-V Resource/CMap/Hojo-V Resource/CMap/KSCpc-EUC-H Resource/CMap/TCVN-RKSJ-H Resource/CMap/90pv-RKSJ-V Resource/CMap/CNS2-V Resource/CMap/UCS2-ETen-B5 Resource/CMap/Hiragana Resource/CMap/GBT-EUC-H Resource/CMap/Roman Resource/CMap/RKSJ-V Resource/CMap/HKdlb-B5-H Resource/CMap/KSCpc-EUC-V Resource/CMap/Adobe-Japan1-H-Host Resource/CMap/UniHojo-UTF8-H Resource/CMap/CNS05-RKSJ-H Resource/CMap/CNS15-RKSJ-H Resource/CMap/UCS2-GBK-EUC Resource/CMap/Adobe-Korea1-0 Resource/CMap/Adobe-Korea1-1 Resource/CMap/GBT-EUC-V Resource/CMap/Adobe-Korea1-2 Resource/CMap/78-RKSJ-H Resource/CMap/HKdlb-B5-V Resource/CMap/HKgccs-B5-H Resource/CMap/83pv-RKSJ-H Resource/CMap/KSC2-RKSJ-H Resource/CMap/Adobe-CNS1-H-Mac Resource/CMap/EUC-H Resource/CMap/UniHojo-UTF32-H Resource/CMap/UniHojo-UTF8-V Resource/CMap/Adobe-CNS1-B5pc Resource/CMap/UniGB-UCS2-H Resource/CMap/90msp-RKSJ-H Resource/CMap/Adobe-GB1-GBpc-EUC Resource/CMap/Adobe-Japan1-H-CID Resource/CMap/HKm471-B5-H Resource/CMap/HKscs-B5-H Resource/CMap/GBT-RKSJ-H Resource/CMap/78-RKSJ-V Resource/CMap/ETen-B5-UCS2 Resource/CMap/HKgccs-B5-V Resource/CMap/UCS2-90ms-RKSJ Resource/CMap/GBpc-EUC-H Resource/CMap/Add-H Resource/CMap/B5pc-H Resource/CMap/Adobe-GB1-0 Resource/CMap/EUC-V Resource/CMap/Adobe-GB1-1 Resource/CMap/KSC-EUC-H Resource/CMap/UniHojo-UTF32-V Resource/CMap/Adobe-GB1-2 Resource/CMap/UniGB-UCS2-V Resource/CMap/Adobe-GB1-3 Resource/CMap/HKscs-B5-V Resource/CMap/HKm471-B5-V Resource/CMap/Adobe-GB1-4 Resource/CMap/90msp-RKSJ-V Resource/CMap/90pv-RKSJ-UCS2C Resource/CMap/Adobe-GB1-5 Resource/CMap/CNS04-RKSJ-H Resource/CMap/UniCNS-UTF32-H Resource/CMap/GBpc-EUC-V Resource/CMap/KSCpc-EUC-UCS2C Resource/CMap/Add-V Resource/CMap/B5pc-V Resource/CMap/Ext-RKSJ-H Resource/CMap/KSC-EUC-V Resource/CMap/Hojo-EUC-H Resource/CMap/UCS2-GBpc-EUC Resource/CMap/GBT-H Resource/CMap/GBK-EUC-H Resource/CMap/UniCNS-UTF32-V Resource/CMap/UCS2-B5pc Resource/CMap/Adobe-GB1-H-Mac Resource/CMap/KSCms-UHC-UCS2 Resource/CMap/Ext-RKSJ-V Resource/CMap/Hojo-EUC-V Resource/CMap/UniGB-UTF8-H Resource/CMap/UCS2-90pv-RKSJ Resource/CMap/Adobe-Japan1-0 Resource/CMap/GBT-V Resource/CMap/Adobe-Japan1-1 Resource/CMap/GBK-EUC-V Resource/CMap/Adobe-Japan1-2 Resource/CMap/Adobe-GB1-H-Host Resource/CMap/Adobe-Japan1-3 Resource/CMap/CNS03-RKSJ-H Resource/CMap/Adobe-Japan1-4 Resource/CMap/Adobe-Japan1-5 Resource/CMap/90ms-RKSJ-H Resource/CMap/Adobe-Japan1-6 Resource/CMap/Adobe-Korea1-KSCms-UHC Resource/CMap/UCS2-KSCpc-EUC Resource/CMap/Adobe-Japan1-PS-H Resource/CMap/GB-EUC-H Resource/CMap/H Resource/CMap/UniGB-UTF8-V Resource/CMap/B5-H Resource/CMap/Adobe-GB1-GBK-EUC Resource/CMap/Adobe-CNS1-H-CID Resource/CMap/90ms-RKSJ-V Resource/CMap/GBpc-EUC-UCS2C Resource/CMap/UniHojo-UTF16-H Resource/CMap/B5pc-UCS2 Resource/CMap/KSC-H Resource/CMap/Adobe-Japan1-PS-V Resource/CMap/GB-EUC-V Resource/CMap/B5pc-UCS2C Resource/CMap/Adobe-CNS1-ETenms-B5 Resource/CMap/B5-V Resource/CMap/Katakana Resource/CMap/HKdla-B5-H Resource/CMap/Identity-H Resource/CMap/UniHojo-UTF16-V Resource/CMap/CNS02-RKSJ-H Resource/CMap/GBKp-EUC-H Resource/CMap/KSC-V Resource/CMap/GBK2K-H Resource/CMap/UniCNS-UTF16-H Resource/CMap/HKdla-B5-V Resource/CMap/UniGB-UTF32-H Resource/CMap/Adobe-GB1-UCS2 Resource/CMap/Identity-V Resource/CMap/UniCNS-UCS2-H Resource/CMap/GBKp-EUC-V Resource/CMap/GBK2K-V Resource/CMap/Adobe-GB1-H-CID Resource/CMap/UniCNS-UTF16-V Resource/CMap/UniGB-UTF32-V Resource/CMap/Adobe-CNS1-0 Resource/CMap/Adobe-CNS1-1 Resource/CMap/Adobe-CNS1-2 Resource/CMap/Adobe-CNS1-H-Host Resource/CMap/Adobe-CNS1-3 Resource/CMap/UniCNS-UCS2-V Resource/CMap/GB-H Resource/CMap/Adobe-CNS1-4 Resource/CMap/Adobe-CNS1-5 Resource/CMap/CNS01-RKSJ-H Resource/CMap/Adobe-Japan2-0 Resource/CMap/KSCms-UHC-H Resource/CMap/Add-RKSJ-H Resource/CMap/GB-V Resource/CMap/KSCms-UHC-HW-H Resource/CMap/HKm314-B5-H Resource/CMap/KSCms-UHC-V Resource/CMap/Add-RKSJ-V Resource/CMap/UniCNS-UTF8-H Resource/CMap/KSCms-UHC-HW-V Resource/CMap/Adobe-Korea1-H-Mac Resource/CMap/HKm314-B5-V Resource/CMap/90pv-RKSJ-UCS2 Resource/CMap/Hankaku Resource/CMap/ETenms-B5-H Resource/CMap/ETen-B5-H Resource/CMap/UniCNS-UTF8-V Resource/CMap/KSCpc-EUC-UCS2 Resource/CMap/CNS1-H Resource/CMap/NWP-H Resource/CMap/Hojo-RKSJ-H Resource/CMap/UniGB-UTF16-H Resource/CMap/78-EUC-H Resource/CMap/ETenms-B5-V Resource/CMap/ETen-B5-V Resource/CMap/Adobe-Korea1-UCS2 Resource/CMap/Adobe-Korea1-KSCpc-EUC Resource/CMap/CNS1-V Resource/CMap/NWP-V Resource/CMap/90ms-RKSJ-UCS2 Resource/CMap/UniGB-UTF16-V Resource/CMap/78-EUC-V Resource/CMap/KSC-RKSJ-H Resource/CMap/Adobe-Japan1-90ms-RKSJ Resource/CMap/CNS-EUC-H Resource/CMap/ETHK-B5-H Resource/CMap/Ext-H Resource/CMap/CNS07-RKSJ-H Resource/CMap/KSC-Johab-H Resource/CMap/Adobe-Korea1-H-Host Resource/CMap/78ms-RKSJ-H Resource/CMap/GBTpc-EUC-H Resource/CMap/HK-RKSJ-H Resource/CMap/GBpc-EUC-UCS2 Resource/CMap/CNS-EUC-V Resource/CMap/ETHK-B5-V Resource/CMap/Ext-V Resource/CMap/KSC-Johab-V Resource/CMap/Adobe-Japan1-H-Mac Resource/CMap/UCS2-KSCms-UHC Resource/CMap/78ms-RKSJ-V Resource/CMap/UniHojo-UCS2-H Resource/CMap/GBTpc-EUC-V Resource/CMap/Adobe-Korea1-H-CID]

2009-09-18T23:01:07.032292Z Ralph Giles

Remove spurious executable bits on Adobe CMap files.

[Resource/CMap/Adobe-GB1-4 Resource/CMap/Adobe-Japan1-4 Resource/CMap/Adobe-Korea1-2 Resource/CMap/Adobe-CNS1-3]

2009-09-17T16:25:00.274251Z Henry Stiles

Fixes 690719 and many other unreported issues associated with the
wtsimdi device.  The default strip_copy_rop musn't be used, the clist
code will constant fold raster operations before determining if a
contone buffer is needed to render the band, the same optimizations
must be used when the clist is being played back and rendered, the
default strip_copy_rop does not (by design) have these optimizations.
I don't know the intent of the cryptic comment above the section where
the procedure override occurred.  

There are too many problems with the wtsimdi device to enumerate code
test file differences of the change, preliminary visual testing of the
wtsimdi device output is needed first.

[base/gdevwts.c]

2009-09-17T02:36:44.475667Z Marcos H. Woehrmann

Added a very quick and dirty hack to look for the link.icc and wts_plane_[0..3] files in /usr/local/lib/ghostscript if they cannot be found in the current directory.

[base/gdevwts.c]

2009-09-14T20:07:32.166692Z Alex Cherepanov

Fix a botched pointer comparison which fails if the pointer difference
overflows the signed integer range. Patch from Mark Davies with
changes. Bug 689711.

[base/gscencs.c]

2009-09-12T17:00:10.219852Z Marcos H. Woehrmann

Fixed typo in comment that was generating groff warning.

[psi/zfunc.c]

2009-09-10T17:41:10.637172Z Ralph Giles

Add gc enumeration to the two string members of the svgwrite device
structure. Fixes a segfault with large input sets. Bug 690757.

Note that this requires a new suffix enumerator macro, since the
two strings case wasn't previously covered.

[base/gsstruct.h base/gdevsvg.c]

2009-09-10T01:13:48.915848Z Ralph Giles

Call paperinit() and paperdone() when using the libpaper api calls
as apparently required by the API. However, these calls do nothing
in the current libpaper implementation (version 1.1.23).

Also, return the name given by defaultpapername() if systempapername()
does not return a result. This is an indicated path in the libpaper
documentation and example code, although again, the the 1.1.23
implementation calls defaultpapername() from systempapername() as
the fallback.

[base/gp_upapr.c]

2009-09-09T22:17:51.567693Z Michael Vrhel

Fix for bug 690534.  

DETAILS:

We now handle the softmask BC entry properly.  This background color is to be composited with the drawings into the softmask.  We now properly initialize the softmask buffer to have this compositing occur.  If we are outside the softmask bounding box then the luminance of the background color is used as the softmask value.  This fixes several rendering issues.

DIFFERENCES EXPECTED:

Bug690027.pdf  PROGRESSION
Bug688807.pdf  PROGRESSION
Bug690170a.pdf PROGRESSION
Bug690170.pdf  PROGRESSION

Bug690022.pdf  I would like a second opion on this one.  It looks like there may be a minor regression.  I am doing the commit anyway due to the large number of progressions with this fix.

[base/gdevp14.c base/gxblend1.c]

2009-09-09T06:21:02.373936Z Michael Vrhel

A fix for the rendering issue that occurred with bug 689581 after fixing the rangecheck error.  This should fix 689581.

DETAILS:

The rendering problem is evident when rendering the simplified file in 689581.   When going to a sep device, the softmask gray scale image is encoded using the compressed encoding function defined for the pdf14_CMYKspot_procs pdf14 device.  The decoder for the CMYKspot device is set to cmykspot_pdf14_procs.  Unfortunately, when the color procs are set for the softmask decode (based upon the softmask CMYK color space) the decoder was set to cmyk_pdf14_procs which resulted in an improper decode of the color values for the softmask.  The fix is to detect the presence of the separation case and make sure that the decoding procs are assigned appropriately.

DIFFERENCES EXPECTED:

None in the normal regression tests.  There could be some differences with sep devices when processing softmasks.

[base/gdevp14.c]

2009-09-09T01:25:59.649343Z Alex Cherepanov

Skip everything before 'begincodespacerange' in regulat CMap stream to avoid
PostScript errors in CMap headers. PDF interpreter doesn't need any data from
the header. See rev. 9240 for the bug 689842 that did the same for ToUnicode
CMap files. Bug 690737, customer 580.

[Resource/Init/pdf_font.ps]

2009-09-08T22:54:10.281044Z Michael Vrhel

Change to avoid having a rangecheck error occur when the softmask group colorspace is a pattern.   This keeps us from having the error occur with bug 689581 however there is still a rendering issue when we go to a sep device.  I have that narrowed down and hopefully will have fixed soon. 

DIFFERENCES EXPECTED   

None on the regression files.

[base/gstrans.c]

2009-09-08T17:58:20.444720Z Michael Vrhel

Removal of line that had the custom pdf14 prototype device used as the initial device for the CMYKSpot pdf14 device.

DIFERENCES EXPECTED:

None.

[base/gdevp14.c]

2009-09-07T20:25:11.850252Z Ralph Giles

Restore -dynamiclib to the MacOS framework build line.

I though the LDFLAGS_SO in unix-dll.mak would provide this in the
previous commit, but they do not.

Also rationalize the use use of SOPREF in macos-fw.mak.

[base/macos-fw.mak]

2009-09-07T20:10:46.938357Z Ralph Giles

Move the value passed to -install_name for the framework build
into unix-dll.mak to avoid also passing it when trying to link
the client where it conflicts.

[base/macos-fw.mak base/unix-dll.mak]

2009-09-07T19:51:20.071990Z Ralph Giles

Also update header source directories in the framework build.

[base/macos-fw.mak]

2009-09-07T19:13:21.625118Z Ralph Giles

Update the path to dxmain.c in the MacOS framework build.

This was omitted during the source tree split, when dxmain.c moved
into psi/. Bug 690394.

[base/macos-fw.mak]

2009-09-03T18:00:06.616356Z Marcos H. Woehrmann

Initial checkin of the local cluster scripts.

[toolbin/localcluster/setupcluster toolbin/localcluster/splitjobs.pl toolbin/localcluster/clustermaster.pl toolbin/localcluster/clusterpull.sh toolbin/localcluster/readlog.pl toolbin/localcluster/build.pl toolbin/localcluster/readme toolbin/localcluster/run.pl toolbin/localcluster toolbin/localcluster/compare.pl]

2009-09-02T16:18:07.841097Z Henry Stiles

The static initialization for memory structure types was not complete,
in some cases, failing to initialize the procedure data.  I suspect
this is harmless but didn't take the time to track down each use of
the faulty macros.

[base/gsstruct.h]

2009-09-01T18:55:55.532790Z Ralph Giles

Set a mime-type property on the new pdf documentation file so svn 
doesn't attempt to generate textual diffs for it.

[doc/Color_Architecture.pdf]

2009-09-01T18:10:02.037482Z Michael Vrhel

Changes to color architecture document based upon comments from Miles.

[doc/Color_Architecture.tex doc/figures/Overview.eps doc/Color_Architecture.pdf]

2009-09-01T16:59:40.570903Z Michael Vrhel

Addition of color architecture document (PDF) and its latex source and eps figures to document folder.

[doc/Color_Architecture.tex doc/figures/XPS_Integer_Gray_RGB_Image.eps doc/figures/Overview.eps doc/figures/XPS_DeviceN.eps doc/figures/PDF_Render.eps doc/figures/XPS_Render.eps doc/figures doc/figures/XPS_Vector_Color.eps doc/figures/XPS_RGB_Image_Float.eps doc/figures/PS_Spec.eps doc/Color_Architecture.pdf doc/figures/PS_Render.eps doc/figures/PDF_Spec.eps doc/figures/Ghost.eps]

2009-09-01T14:09:38.072790Z Ken Sharp

Fix (pdfwrite) : quiet a compiler warning

Details
Cast a long int to an unsigned int to prevent a compiler warning on a debug print 
operation.

[base/gdevpdtc.c]

2009-09-01T14:02:26.307800Z Ken Sharp

Fix (pdfwrite) : Remove some unused variables

Details
Flagged by the gcc compiler as unused, removed two variables.

[base/gdevpdfd.c]

2009-09-01T13:31:15.405830Z Ken Sharp

Fix (pdfwrite) : Minor compiler warning

Details
remove_table was not declared static, leading to a 'missing prototype' warning from the
compiler.

[base/gdevpsft.c]

2009-09-01T13:29:34.736595Z Ken Sharp

Fix : Minor compiler warnings

Details
subst_CID_on_WMode_enum_ptrs was not declared static leading to (benign) prototype
warnings. Also subst_CID_on_WMode_finalize was declared as returning an int, but
finalize procedures must be void.

[base/gsfcid.c]

2009-09-01T07:42:38.080497Z Ken Sharp

Fix (pdfwrite) : Silence Coverity warning

Details
The result of sscanf was not checked to see if at least one match was found. This is
benign because the data was initialised to 0 anyway. However it allows us an opportunity
to note the invalid annotation, which we now do.

[base/gdevpdfm.c]

2009-08-31T17:00:13.229845Z Ralph Giles

Pass the full CFLAGS to CCAUX in the autoconf build, instead of just
GCFLAGS. This propagates target-defining options which are typically
set in XCFLAGS to build utilities so that, for example, -m32 results
in the correct sizes in arch.h.

Note that this may complicate cross-compiles. In theory CCAUX has
separate, simpler flags because of this, but there are also several
examples in the documentation of using XCFLAGS this way, so this
seems to the the safer approach at this time.

The dynamic flags for the separate x11 devices module are also
passed through XCFLAGS but they do not harm other than cluttering
the command line.

[base/Makefile.in]

2009-08-28T17:22:50.739244Z Henry Stiles

New attributes required to fix 690736, the actual fix will be in the
next commit to PCL XL.  We can't update the trees simultaneously.

[base/gdevpxat.h]

2009-08-26T20:03:31.773651Z Alex Cherepanov

Work around a bug in PDF generated by "PdfWrapper v1.00" that sometimes
writes "." instead of "0." in content stream. Bug 690730.

[Resource/Init/pdf_draw.ps]

2009-08-25T08:18:02.437396Z Ken Sharp

Fix (pdfwrite) : Write ToUnicode CMaps with 2-byte code space ranges and keys

Details
Bug #690722 "Problem with the font embedding logic"

The existing ToUnicode CMap code wrote a ToUnicode CMap the same as a regular CMap, so
the code space ranges and keys could be arbitrary lengths depending on the number
of codes and their values. This appeared to be correct per the PDF Reference and the
CMap specification.

However, buried in technical note 5411, the 'ToUnicode Mapping File Tutorial' is a 
single reference:

"the following “codespacerange” definition, without exception, shall always be
used: 1 begincodespacerange  <0000> <FFFF>endcodespacerange"

This means that ToUnicode CMaps must be treated specially to ensure that they always
have 2 byte code space ranges and keys.

Modified the single allocation of ToUnicode CMaps so that it always specifies a 2
byte range.

[base/gdevpdte.c]

2009-08-21T19:40:48.371802Z Ray Johnston

Add check for NOTRANSPARENCY in patternusestransparency since this is also used
by resolvepattern in pdf_draw.ps. If this flag is set, but the pdf14 device is
not active, "unregistered" error occurs. Bug 690727 for customer 531.

[Resource/Init/pdf_main.ps]

2009-08-21T05:19:49.329915Z Alex Cherepanov

Ghostscript caches pattern instances in the pattern dictionary. This patch
doesn't cache anything in the null pattern dictionary because it's read-only.
Bug 690725.

[Resource/Init/pdf_ops.ps]

2009-08-19T16:22:08.241617Z Alex Cherepanov

Process embedded files as a portable collection only when /Collection
attribute is defined in the document root. Bug 690709.

DETAILS:
Collection atribute is marked in the spec as optional because a PDF file
need not to be a portable collection but every collection has /Collection
attribute.

[Resource/Init/pdf_main.ps]

2009-08-19T06:04:51.856837Z Ray Johnston

Simplify / reduce the ht rendering logic to remove the special cases where
the cache had 1 level per tile (which should now be the usual case) and the
case where there is only one tile (which means that the tile is 1Mb).

The special case handling of these cases does not result in any performance
improvement with the modern (1Mb) cache size and thus this is a code
simplification.

[base/gxht.c]

2009-08-19T06:00:39.095541Z Ray Johnston

Adjust ht cache allocation to a size that will actually be used by the
cache logic. The changes allow for replicating tiles along the width axis
up to a ulong multiple that optimizes tile blitting in the mem device
logic. Addresses bug 690693 by reducing the memory used from > 1Gb to
< 200 Mb. As noted in the comments to that bug, there still may be some
optimizations remaining.

DETAILS:
Reduces the allocation from over 1Gb for Special Test C1 of 09-40.PS to less
than 200Mb by reducing the ht cache size to what will actually be used. The
code in gxht.c initializes the cache limits the 'rep_count' to 8*sizeof(ulong)
so any more than that per tile (1+width*height) will not be used.

Debug code in gxht.c (gx_ht_init_cache) to check:

   if ( rep_count != (8 * sizeof(ulong)) )
       dprintf("non_optimal ht cache size\n");

never detected a different value, so the ht cache size should be optimal
with this patch -- neither too much nor too little allowed for the most
efficient width repetition. This was tested at a variety of resolutions from
72 to 1600 with several files that defined screens and also checked with
'stocht.ps' that the maximum ht cache size was chosen to fit. Also the cluster
regression shows no differences (I'd have been surprised if it did).

Note that the above test is _not_ part of the patch since it was only used for
evaluation.

Also see rev 8526.

[base/gsht.c]

2009-08-18T20:41:17.764580Z Ray Johnston

Add 'used' and 'max_used' information to the -Za output. This is handy for
investigating memory usage and only affects a debug build when -Za (or -ZA)
is used.

[base/gsmalloc.c]

2009-08-17T22:13:01.172961Z Henry Stiles

Improve diagnostics for detecting problems with virtual memory spaces
(see bug #688333).  The vm space id was not initilialized for all
allocations.  This change reduce the list from hundreds down to tens of
entries for a very simple postscript job.

[base/gsalloc.c]

2009-08-15T03:02:03.213076Z Alex Cherepanov

Fix rendering artifacts in interpolated images caused by intermediate bit 
buffer not reset when data get flushed to output buffer. Bug 689566.

[base/gsbitops.h]

2009-08-14T04:12:58.692182Z Alex Cherepanov

Remove code that tries to pause at the end of the .PFB binary data in an
attempt to keep from reading beyond the end of the encrypted data, sometimes
misidentifying the end of the actual data, and stopping early. Bug 465936.

DETAILS:
Since the eexec operator specifies that one never reads more than 256 bytes
ahead, and since the pad bytes are given in the text portion of a .PFB file,
in hexadecimal, there is no need to go to extra lengths to avoid reading
(too far) past the end of the eexec data. Thanks to Paul Vojta and Ray
Johnston for the path.

[base/seexec.c base/sfilter.h psi/zmisc1.c]

2009-08-14T00:33:11.113850Z Alex Cherepanov

Change literal /FontBBox array into executable one for better compatibility
with legacy software. QuarkXPress 3.31, idraw, and some versions of dvips
assume that /FontBBox is executable. Bugs 690683, 687120, customer 460.

[Resource/Font/URWPalladioL-BoldItal Resource/Font/NimbusSanL-Bold Resource/Font/NimbusRomNo9L-Medi Resource/Font/URWChanceryL-MediItal Resource/Font/CenturySchL-Roma Resource/Font/NimbusMonL-Bold Resource/Font/NimbusSanL-BoldItal Resource/Font/NimbusRomNo9L-MediItal Resource/Font/URWGothicL-Demi Resource/Font/URWBookmanL-DemiBold Resource/Font/NimbusRomNo9L-Regu Resource/Font/URWGothicL-Book Resource/Font/NimbusSanL-ReguCond Resource/Font/URWBookmanL-Ligh Resource/Font/CenturySchL-Bold Resource/Font/NimbusRomNo9L-ReguItal Resource/Font/URWBookmanL-DemiBoldItal Resource/Font/NimbusMonL-ReguObli Resource/Font/NimbusSanL-ReguCondItal Resource/Font/CenturySchL-Ital Resource/Font/URWPalladioL-Roma Resource/Font/CenturySchL-BoldItal Resource/Font/URWBookmanL-LighItal Resource/Font/NimbusSanL-BoldCond Resource/Font/NimbusSanL-BoldCondItal Resource/Font/NimbusMonL-BoldObli Resource/Font/URWGothicL-DemiObli Resource/Font/NimbusSanL-Regu Resource/Font/URWPalladioL-Bold Resource/Font/NimbusMonL-Regu Resource/Font/URWGothicL-BookObli Resource/Font/NimbusSanL-ReguItal Resource/Font/URWPalladioL-Ital]

2009-08-13T19:04:34.663531Z Alex Cherepanov

In hex form of eexec stream, break out of reading loop and try to interpret
the accumulated data when a whitespace character is encountered. Skip whitespace
characters when the control returns to /eexecDecode filter. Bug 689577.

DETAILS:
Normally, eexec stream is followed by a large number of 0's to compensate
for read-ahead effects. The code fragment that Adobe Acrobat uses to prevent
re-distilling of the file has no trailing 0's at all. This patch tries to guess
the end of eexec stream after every whitespace character.

[base/sstring.c base/seexec.c base/sfilter.h base/strimpl.h]

2009-08-13T14:58:04.684321Z Ken Sharp

(empty)

[base/gdevpdfm.c base/gdevpdfc.c base/gdevpdft.c base/gdevpdfu.c base/gdevpdfv.c base/gdevpdfg.c base/gdevpdfi.c]

2009-08-13T07:57:02.889637Z Ken Sharp

Fix (pdfwrite) : Check pointer before dereferencing

Details
Bug #690704 "Regression: seg fault with pdfwrite"

The pdfwrite mask image handling assumed that if certain conditions were met then an
image related to text, and attempted to use a stored text enumerator. It did not,
however, check the stored pointer before dereferencing it.

Added a check to see the pointer is non-NULL before deciding that the image refers to
text.

[base/gdevpdfb.c]

2009-08-12T07:09:40.485630Z Ken Sharp

Fix (pdfwrite): Writing invalid numbers for linecap and linejoin parameters

Details:
bug #690691: "setlinecap"

pdfwrite was emitting the linecap and linejoin values directly from the graphics
state to the output PDF file. However the GS graphics state also supports the
additional PCL linecap and linejoin values, which are not supported in PDF. This
resulted in PDF files with illegal values.

Modified the code to replace tringle linecaps with round linecaps, triangle line
joins with miter joins and none joins with bevel joins. These are not correct but
are reasonable solutions for now. We should degenerate 'none' joins into a 
sequence of discrete paths.

Also added future protection by converting unknown values of linecap into butt
line caps and unknown values of linejoin into miter line joins. In both cases
a debug warning is emitted.

[base/gdevpsdu.c]

2009-08-11T15:47:12.926634Z Alex Cherepanov

Stop processing of embedded Type 1 font as soon as operator eexec returns.
Skip the trailer that may be truncated or corrupted. Bug 690701, customer 780.

[Resource/Init/pdf_font.ps]

2009-08-11T15:10:57.046923Z Henry Stiles

The debugging code to dump an allocator crashed when printing
references, also add a convenience function so it can be easily called
from the debugger and a reminder in ilocate.  All debugging changes,
no expected differences.

[base/gxalloc.h psi/ilocate.c base/gsalloc.c]

2009-08-11T04:11:32.968611Z Alex Cherepanov

Reorder a logical expression in bbox device to avoid evaluation of
uninitialized part. Fix a Purify warning.

[base/gdevbbox.c]

2009-08-10T23:29:24.006231Z Henry Stiles

Adds a new memory device constructor
(gs_make_mem_device_with_copydevice) to replace gs_make_mem_device and
fixes several device reference counting problems (leaks) which
affected all the the client languages.  No expected visual
differences.

[base/gdevdrop.c base/gxpcmap.c base/gxdevmem.h base/gdevmem.c]

2009-08-10T18:52:21.508883Z Henry Stiles

Add a new memory device constructor which uses copydevice.

[base/lib.mak base/gxdevmem.h base/gdevmem.c]

2009-08-07T18:29:05.729614Z Ralph Giles

Propagate LDFLAGS to the shared library gs client link command lines
in the the autoconf build. Bug 690695.

[base/unix-dll.mak]

2009-08-07T14:08:57.827147Z Ken Sharp

Fix a benign type cast warning from MSVC 2008 by explicitly casting the glyph name.

[base/gdevpdtd.c]

2009-08-07T13:54:04.799461Z Ken Sharp

Inadvertently left a line commented out (with a C++ style comment!) which should have
been removed. Apologies all round.

[base/gdevpdtd.c]

2009-08-07T13:46:58.208375Z Ken Sharp

Fix (pdfwrite) : Embedded TrueType fonts not correctly flagged as Symbolic

Details
Bug #690688 "-dSubsetFonts=false produces incorrect PDF file"

The method Acrobat uses to select glyphs from TrueType fonts is arcane and dependent
on the setting of the Symbolic/non-symbolic flags. When we subset a font the encoding
is always created incompatible with StandardEncoding, and so we mark the font as
Symbolic.

However, if we embed the entire font, we try to decide if its symbolic or not. To do
this we check the names of all the used glyphs to see if they are in StandardEncoding
and if they all are we start by assuming the font is *not* symbolic (there are other
checks).

However, there were a number of problems with this check. Firstly the reverse encoding 
which is used to do the work does not contain the .notdef glyph, which *should* have
meant that all fonts were incorrectly marked as symbolic. The only reason it didn't
is because the return value from the routine gs_c_decode was checked against 
gs_no_glyph to see if it failed to match. But gs_c_decode actually returns GS_NO_CHAR
in this case.

So the test was incorrect, and never correctly detected that a glyph was not in 
StandardEncoding.

The test is also insufficient, in addition to being present in the font, the glyph must
also be encoded at the correct position in StandardEncoding, the font in this job 
contains glyphs whose names are all in StandardEncoding, but they are not encoded at the
normal positions, so the font *should* be marked symbolic.

This patch skips the test for the .notdef glyph, correctly checks the return value
from gs_c_decode, and adds the test against the encoding position.

[base/gdevpdtd.c]

2009-08-06T17:14:10.510938Z Michael Vrhel

Fix for bug 690670.  Softmask color space was incorrectly getting set to DeviceN when the color space was undefined for the group and the output device was a separation device.

DETAILS:

For a transparency group, this method is OK as we blend the individual channels as defined in the PDF spec.  For a mask, this is not OK, since we have to map to luminosity and the mapping from the process + spot colors to luminosity is not defined.  Solution is to use the concrete space of the current space of the imager state for the softmask for this situation.  

DIFFERENCES EXPECTED:

None

[base/gstrans.c]

2009-08-05T22:12:58.428110Z Marcos H. Woehrmann

Reverts r8510, r8511, r8513, r8597.  

Details

This is a fix for bug 690396; a customer bug involving a clipping path
combined with a shading fill.  The original changes were a minor (20%)
optimization that was a non customer performance enhancement.

[base/gsptype2.c base/gsptype2.h base/gximask.c base/gxfill.c]

2009-08-04T01:32:50.525295Z Henry Stiles

Fixes a regression with revision 5219, the log for this revision says:

  "Valid memory pointer used create a tile_clip device instead of
  NULL"

Unfortunately the tile clip device is created on the c stack and
should not get a non null memory pointer.  Later in gxcht.c this same
device memory pointer is used to get a gs id, maybe this was the real
motivation for the change.  We now use the device halftone memory
pointer and the device is initialized with a NULL memory pointer as
expected.

[base/gxcht.c base/gxp1fill.c]

2009-08-03T03:09:50.293548Z Alex Cherepanov

Add missing initialization of the path rule member during setting up
the stack-allocated clipping path structure. Fix a Purify warning.

[base/gxcpath.c]

2009-08-02T23:55:26.536287Z Alex Cherepanov

Remove a line that has no effect other than causing frequent Purify warning
and puzzling the reader.

[base/ttfmain.c]

2009-08-02T23:50:02.458497Z Alex Cherepanov

Fully initialize CFD stream state. Fix a Purify warning in 23-12B.PS and
stop printing wild core instead of error messages.

[base/scfx.h]

2009-08-02T23:16:26.642637Z Alex Cherepanov

Fix all remaining MSVC warning other than C4018 or C4244 that have little
value and should be suppressed. Bug 690660.

[base/gdevp14.c psi/zcid.c base/gdevpdti.h base/gxacpath.c base/gxpcolor.h libpng/pngwio.c]

2009-08-01T03:14:53.314562Z Alex Cherepanov

Fix a common Purify warning; skip calculations with uninitialized values
during processing an empty glyph, such as /space .

[base/gxhintn.c]

2009-08-01T03:02:47.627968Z Alex Cherepanov

Swap transposed code fragments in image interpolation logic. Old code missed
some optimizations and could cause wrong rendering. Clear a Purify warning
about uninitialized memory access running 148-11.ps.

[base/gxiscale.c]

2009-08-01T02:46:33.092104Z Alex Cherepanov

Fix yet another case of missing dereference of indirect objects. Bug 690675.

[Resource/Init/pdf_draw.ps]

2009-08-01T02:41:03.067359Z Alex Cherepanov

Fix processing of -dUseCropBox that was broken by the rev. 9805.
Old code messed up the operand stack when -dUseCropBox was requested but no
/CropBox attribute was in the PDF file. Bug 690676, customer 330.

[Resource/Init/pdf_main.ps]

2009-08-01T00:31:06.505318Z Ralph Giles

Remove a reference to the obsolete AFPL license text.

[doc/Release.htm]

2009-08-01T00:31:04.401366Z Ralph Giles

Remove an unnecessary header file.

[psi/int.mak psi/igc.c]

2009-08-01T00:27:25.216685Z Ralph Giles

Bump version after the 8.70 release.

[base/gscdef.c base/version.mak Resource/Init/gs_init.ps doc/News.htm]

2009-07-31T18:06:12.135189Z Ralph Giles

Update changelogs and open bug numbers for 8.70 final.

[doc/History8.htm doc/News.htm doc/Details8.htm]

Version 8.70 (2009-07-31)

This is the first release in a new stable series of Ghostscript releases. The GhostPDL release number has been set to 8.70 as well, to make it easier to identify corresponding releases.

This release fixes a large number of issues with transparency, especially as it interacts with color space conversion, mask contexts and patterns. There have also been a number of significant fixes to font handling, especially when generating PDF. And there are numerous robustness, correctness and performance improvements.

New generic Esc/Page devices, eplmono and eplcolor were added to the contrib directory. A new cdnj500 device was added to support the HP DesignJet 500.

The licensing of the Free version of the core Ghostscript code has been changed to GPLv3 or later. Previously, the core code was GPLv2 only. Ghostscript can now be used with GPLv3 applications, and can no longer be used with applications that are GPLv2-only.

This release also includes security fixes addressing CVE-2009-0583 and CVE-2009-0792.

The following bugs were open at the time of release:

226943, 430175, 465936, 493348, 535932, 567421, 578865, 614298, 626295, 686853, 686865, 687084, 687095, 687146, 687193, 687257, 687271, 687280, 687295, 687297, 687327, 687375, 687414, 687475, 687492, 687514, 687520, 687536, 687561, 687593, 687608, 687630, 687650, 687666, 687674, 687677, 687695, 687697, 687702, 687715, 687721, 687728, 687731, 687775, 687780, 687782, 687793, 687796, 687805, 687887, 687903, 687904, 687915, 687931, 687950, 687981, 687983, 688007, 688022, 688024, 688026, 688036, 688042, 688064, 688081, 688130, 688166, 688184, 688187, 688204, 688210, 688215, 688227, 688267, 688269, 688280, 688288, 688312, 688318, 688320, 688333, 688361, 688363, 688372, 688386, 688387, 688389, 688395, 688413, 688436, 688437, 688440, 688448, 688475, 688483, 688495, 688528, 688533, 688539, 688540, 688542, 688557, 688565, 688580, 688581, 688604, 688605, 688616, 688617, 688627, 688636, 688638, 688647, 688651, 688655, 688673, 688699, 688709, 688710, 688714, 688731, 688757, 688777, 688797, 688818, 688829, 688843, 688845, 688846, 688871, 688872, 688926, 688933, 688942, 688949, 688969, 688978, 688990, 688994, 688999, 689003, 689011, 689013, 689025, 689031, 689032, 689040, 689044, 689046, 689048, 689057, 689076, 689077, 689078, 689093, 689094, 689098, 689133, 689137, 689145, 689150, 689153, 689161, 689167, 689184, 689188, 689195, 689199, 689222, 689224, 689236, 689247, 689248, 689252, 689253, 689278, 689279, 689283, 689289, 689290, 689308, 689331, 689335, 689340, 689341, 689376, 689378, 689392, 689396, 689418, 689419, 689421, 689423, 689439, 689450, 689451, 689456, 689460, 689484, 689487, 689489, 689490, 689498, 689500, 689502, 689506, 689507, 689512, 689518, 689522, 689546, 689549, 689554, 689557, 689560, 689566, 689577, 689581, 689584, 689585, 689591, 689592, 689595, 689598, 689601, 689606, 689616, 689625, 689627, 689636, 689641, 689653, 689658, 689663, 689670, 689674, 689681, 689682, 689684, 689689, 689690, 689691, 689697, 689698, 689704, 689705, 689709, 689710, 689711, 689715, 689721, 689725, 689726, 689734, 689737, 689741, 689756, 689759, 689761, 689767, 689772, 689775, 689778, 689781, 689786, 689792, 689793, 689794, 689799, 689801, 689805, 689808, 689823, 689836, 689840, 689853, 689856, 689858, 689859, 689860, 689861, 689862, 689868, 689869, 689870, 689871, 689878, 689883, 689885, 689910, 689915, 689916, 689917, 689928, 689930, 689933, 689937, 689938, 689939, 689940, 689941, 689942, 689943, 689947, 689950, 689951, 689957, 689969, 689972, 689974, 689980, 689986, 689991, 689996, 689997, 690003, 690005, 690007, 690009, 690020, 690024, 690025, 690026, 690029, 690033, 690036, 690043, 690053, 690054, 690061, 690066, 690068, 690069, 690073, 690083, 690084, 690085, 690093, 690094, 690098, 690110, 690119, 690125, 690126, 690131, 690132, 690137, 690143, 690146, 690160, 690162, 690171, 690176, 690180, 690182, 690191, 690192, 690199, 690200, 690207, 690208, 690212, 690214, 690216, 690224, 690226, 690229, 690235, 690241, 690246, 690249, 690250, 690251, 690253, 690261, 690262, 690265, 690268, 690275, 690278, 690281, 690282, 690285, 690290, 690293, 690294, 690296, 690297, 690299, 690320, 690322, 690324, 690325, 690328, 690329, 690333, 690339, 690340, 690345, 690346, 690351, 690356, 690360, 690366, 690369, 690375, 690384, 690392, 690393, 690394, 690396, 690398, 690406, 690409, 690412, 690413, 690415, 690417, 690419, 690428, 690429, 690435, 690436, 690441, 690442, 690444, 690445, 690446, 690448, 690451, 690453, 690455, 690462, 690466, 690468, 690469, 690470, 690471, 690473, 690476, 690477, 690479, 690482, 690485, 690486, 690487, 690490, 690496, 690497, 690499, 690504, 690506, 690508, 690519, 690524, 690526, 690530, 690531, 690534, 690535, 690536, 690537, 690538, 690541, 690543, 690544, 690545, 690549, 690551, 690552, 690553, 690554, 690556, 690557, 690559, 690560, 690561, 690562, 690563, 690564, 690565, 690566, 690567, 690568, 690569, 690570, 690571, 690572, 690573, 690575, 690578, 690580, 690581, 690585, 690594, 690595, 690596, 690598, 690600, 690601, 690602, 690603, 690604, 690605, 690606, 690607, 690610, 690612, 690615, 690617, 690620, 690621, 690622, 690626, 690627, 690630, 690631, 690633, 690636, 690638, 690639, 690641, 690642, 690643, 690646, 690649, 690650, 690651, 690652, 690653, 690658, 690661, 690664, 690665, 690667, 690668, 690669, 690670, 690671, 690673, 690674, 690675, 690676.

Incompatible changes

The size of PostScript integers has been limited to 32 bits. Previously they used the C long type resulting in 64 bits of precision on LP64 systems (like Linux on x86_64). As of this release all platforms match the recommended implementation limits in the specification.

Changelog

2009-07-31T17:56:00.606748Z Ralph Giles

Bump release date for the final 8.70.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Fonts.htm doc/Ps2ps2.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp man/font2c.1 man/gsnd.1 base/version.mak man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2009-07-30T22:33:02.933395Z Ralph Giles

Update the release notes for the licensing change.

[doc/History8.htm doc/News.htm doc/Details8.htm]

2009-07-30T22:31:07.319480Z Ralph Giles

Relicense GPL Ghostscript under the GPLv3 or later.

[doc/COPYING LICENSE]

2009-07-28T19:46:52.330831Z Ralph Giles

Update change logs for 8.70rc1.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

2009-07-28T19:35:06.647161Z Ralph Giles

Update release version and date for 8.70rc1.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 base/gscdef.c man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Fonts.htm doc/Ps2ps2.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2009-07-28T19:30:52.619540Z Ralph Giles

Document the cat.ps utility.

[doc/Psfiles.htm]

2009-07-28T19:11:13.726309Z Ralph Giles

Add release notes for 8.70rc1.

[doc/News.htm]

2009-07-28T18:20:58.792176Z Alex Cherepanov

Change the operand types of encode_binary_token() to match the
the type of PostScript integers in the ref structure. Bug 690660.

[psi/iscanbin.c psi/btoken.h]

2009-07-28T17:16:43.839663Z Ralph Giles

Bump the release number to 8.70.

The numerous transparency and smask fixes justify a new minor number.

[base/version.mak Resource/Init/gs_init.ps doc/News.htm]

2009-07-28T16:55:34.923668Z Alex Cherepanov

Fix incorrect right shift on 64-bit platforms. PLRM defines bitshift operator
as a logical shift. On 64-bit platform, the integer operand was promoted to
64-bit long value, shifted, and assigned back to 32-bit int, effectively
emulating the sign extension.

[psi/zrelbit.c]

2009-07-28T16:49:26.940894Z Ralph Giles

Work around problems with XInitImage and large rasters.

Patch from Russ Cox, fixes Bugs 689547 and 689561.

Details:

The patch sets bitmap_pad, and passes 0 for bytes_per_line in
cases were current xorg can correctly generate a value. Russ writes:

I have tracked down the problem, and it appears to be a bad interaction
between
gs and recent sanity checking in the X library.

In particular, sometimes x_copy_image in gdevx.c gets called with wide
widths but narrow raster values.  Even though the raster is apparently
wrong, the X graphics operations would work okay with that value.  But
new versions of X11 have various checks in XInitImage, one of which is
that the raster is greater than or equal to the width of the image times
the depth.

To see that this diagnosis is correct, replacing the call to XInitImage
with a call to _XInitImageFuncPtrs (which is just XInitImage without the
sanity checking) makes gs start working.  But of course
_XInitImageFuncPtrs is not a public interface function and thus probably
not the best fix.  Replacing the "bytes_per_line = raster" with
"bytes_per_line = 0" (which makes X compute the value from width and
depth) works fine in the zoom levels that would otherwise crash but
causes the previously-working zoom levels to shear the image (or worse),
presumably because the "obvious" raster is not the right one at those
levels.

Also, the new XInitImage also requires bitmap_pad be set always.

The patch below also fixes the problem -- I can run "gv pprof.ps" at all
zoom levels, and I can also zoom into regular documents.

Perhaps it is not the right fix -- perhaps the actual bug is that
x_copy_image is being called with a bad raster value in the first place.
But it does work.

[base/gdevx.c]

2009-07-28T16:20:51.749226Z Ken Sharp

Fix (pdfwrite): Excessive redefinitions of CIDFonts causing memory exhaustion

Details:
bug #690642: "conversion to PDF aborts after 800 pages"

When instantiating a CIDFont with TrueType outlines, the TrueType interpretation code
tries to name the font using the name table from the TrueType font. If there is no name
table (as is the case for CIDFonts with TT outlines) it instead uses the XUID as the
name.

The XUID is incremented on every use, this means that each time the font is instantiated
(up to once per page when the job is PDF) we create a new CIDFont with a new name.
pdfwrite is unable to determine that these are all in fact the same original font, and
creates many fonts in the output file, eventually leading to memory exhaustion.

This change creates a new key in the current dictionary '/PDFCIDFontName', while
processing a CIDFont with TrueType outlines for a PDF file, which is the same as the
CIDFont BaseFont name. Since PDF can only have one descendant font per CIDFont this
should not cause name collisions. To avoid interference with PostScript the key is
removed from the current dictionary after use.

In the TrueType interpreter, if we are handling a CIDRFont then after loading the TT
tables we check to see if /PDFCIDFontName is defined. If it is we use it to replace the
/FontName and /CIFontName values. This means we only ever create the font with a single
name, which avoids the confusion with pdfwrite.

With this change pdfwrite only emits a single font and, usefully, it has the same name
as the font in the original PDF file.

[Resource/Init/pdf_font.ps Resource/Init/gs_ttf.ps]

2009-07-28T07:48:19.388013Z Ralph Giles

Add bounds checking to various icclib functions.

Based on a set of patches by Jan Lieskovsky at Red Hat,
addressing CVE-2009-0583 and CVE-2009-0792.

Details:

Various _get_size and _write methods in icclib 2.01 were vulnerable to
integer overflow from corrupt or malicious profile data. This commit
makes a number of changes to address this.

First, it enforces bounds checking on array indicies generated through
tag data lookup or floating point calculations, either throwing an error
or clamping, depending on the context.

Second, it converts a number of malloc(nelement*size) calls into
calloc(nelements, size), passing responsibility for overflow control
to the standard library. This works on recent glibc, MacOS 10.4 (at
least) and MSVC 2005 (at least; I believe MSVC 6 doesn't check for
overflow). Systems which overcommit memory allocations generally also
lazily zero pages, so the performance implications of an overflow in
calloc() resulting in a huge allocation (or the same happening at the
request of corrupt or malicious ICC profile data) are not as bad as
might appear relative to the original malloc(). From the other side,
multi-processing systems must often zero pages delivered to malloc
anyway to prevent information leakage.

On top of Jan's patches, this commit uses a fallback for SIZE_MAX, a
stdint.h define which isn't available on all platforms (notably MSVC),
and changes a number error message to match the malloc->calloc changes.

It fixes a serious bug where the new error checking code incorrectly
rejected valid profiles with an MLUT but no black point tag.
icc_get_luobj() always tried to load the black point tag, and if it
wasn't found, icc_read_tag() would set an error flag, which was later
picked up in icmLut_read() by the check added for the results of
icmLut_get_size(). Since the black point tag is optional, and icclib
already substitutes a default (0,0,0) black point if none is contained
in the profile, we just reset the error condition within
icc_get_luobj(). vtm2k.pdf is a good testfile for this issue.

Likewise, the length of lookup tables was limited to 100 points, as a 
resource consumption constraint, but the spec allows LUTs with up
to 255 points. Bug690495.pdf from the regression suite triggered
this problem.

Thanks to Michael Vrhel for these last two fixes.

[icclib/icc.c]

2009-07-27T16:59:50.188520Z Till Kamppeter

Update of the Esc/Page laser printer drivers from Epson and Avasys, new output devices "eplmono" and "eplcolor", and new media types.

[contrib/contrib.mak contrib/eplaser/gdevescv.h base/configure.ac contrib/eplaser/gdevescv.c]

2009-07-27T00:30:35.025070Z Marcos H. Woehrmann

The fill adjustment change in r9882 was too great; this rev changes it to 0.3 (from the original 0.25).

[base/gsstate.c]

2009-07-24T19:03:05.883160Z Ray Johnston

Add some debug that can be handy in tracing memory usage with the chunk manager.
This code has not effect on non-debug builds.

[base/gsmchunk.c]

2009-07-24T14:21:19.243209Z Ken Sharp

Fix (pdfwrite) : Incorrect table in /Unicode /Decoding Resource

Details
Bug #690648 "many incorrectly encoded Latin Extended-A characters"

The job in this issue contains a subset incrementally downloaded TrueType font where
the Encoding is such that the first glyph encountered is encoded at character
position 1, the second at position two and so on. In addition there is no
GlyphNames2Unicode dictionary.

pdfwrite tries, whenever possible, to write a ToUnicode CMap into the output PDF file
which allows Acrobat and other consumers to copy and paste text using Unicode values.
Since there is no Unicode information in the file, and the Encoding is distinctly 
non-standard, we fall all the way back to using the glyph names as a last ditch
attempt to generate the Unicode information.

This relies on the /Unicode /decoding resource, it seems that many glyphs in this
resource were (and possibly still may be) encoded at the wrong Unicode code points. 
This patch fixes the glyphs raised in the bug report, there may be others.

[Resource/Decoding/Unicode]

2009-07-23T17:34:17.505092Z Henry Stiles

Temporarily address bug #690646 with a fatter fill adjustment default.
This will only affect tests with resolutions less than 150 dpi.  The
change makes superfluous code in gs_init.ps which initializes the
default fill adjust to .5 iff the resolution is greater than or equal
to 150 dpi.

[base/gsstate.c]

2009-07-22T21:09:42.692668Z Michael Vrhel

The commits provides proper transparency support for fills with patterns that contain transparency. This is a merge of the pattern_trans branch into the trunk. 

DETAILS:

When a pattern contains a transparency, it should be blended with the underlying objects according to the current extended graphic state settings (e.g. knockout, blend mode etc).  Prior to this commit, patterns with transparency behaved always as knockout fills.  This fixes Bug 690467 and fixes issues for files that contain transparency patterns in the regression suite when using the pbm output device.
When a transparency is present in a pattern, a pdf14 device is pushed.  Pattern accumulation will then occur in the transparency buffer.  When the accumulation completes, the buffer that is created is no longer passed to the pattern tile object gx_pattern_trans_t through pdf14_put_image, but instead the buffer and various details about the buffer are placed in the existing planar form into a new member of gx_pattern_trans_t called ttrans.  
When a  path is to be filled with the pattern, we will be in pdf14_fill_path.  If the color to fill with is of type pattern1_color, then we will do a call to pdf14_tile_pattern_fill which pushes a transparency group the size of the path that we are filling, in the base color space of the tile.  We decompose the path to a rectangle list which is then filled using gx_trans_pattern_fill_rect.  If the fill is simple, i.e. if the tile step size and tile size are the same, then a straight forward non-overlapping fill of the rectangle occurs.  Otherwise a more complex filling occurs where the tiles may overlap.  If the tiles overlap, then blending will need to occur.  Optimizations were implemented to avoid blending if it is not required.  In addition, memcpy was used for the inner loop filling (rows) when dealing with the non overlapped case.  Going from planar data in the tile buffer to planar data in the transparency group that we are filling is much more efficient then switching between planar to chunky and back to planar like we would have had to do if we had used pdf14_put_image and stored the tile data in the buffer that is used for the nontransparency case.  Once the fill completes, the transparency group is popped, which will perform the appropriate blending with the parent group in the proper color space.
Currently it is not allowed to have the transparency tile stored as a clist.  Instead the tile is always stored in the ttrans object.  It would probably be worthwhile to fix this at some point.  When we are doing clist processing, code was added to write  (gx_dc_pattern_trans_write_raster) and read (gx_dc_pattern_read_trans_buff) the ttrans object to and from the clist.  

DIFFERENCES EXPECTED:

tests_private/comparefiles/Bug688631.pdf (pbmraw 600dpi) tests_private/comparefiles/Bug688728a.pdf (pbmraw 600dpi) tests_private/comparefiles/Bug688728b.pdf (pbmraw 600dpi)
tests_private/comparefiles/Bug689422.pdf (ppmraw 600dpi)
tests_private/comparefiles/Bug689422.pdf (pkmraw 600dpi)
tests_private/comparefiles/Bug688728.pdf (pbmraw 600dpi)

[psi/zpcolor.c base/gdevp14.c base/gsptype1.c base/lib.mak base/gdevp14.h base/gxpcmap.c base/gsptype1.h psi/int.mak base/gxpcolor.h base/gxcolor2.h /trunk/gs base/gxp1fill.c]

2009-07-21T13:43:27.037336Z Ken Sharp

Enhancement (pdfwrite) : Add a new switch 'PDFACompatibilityPolicy to control PDF/A
creation when encountering invalid content.

Details
Bug #690500 "gs 8.63. Option dPDFA generating no pdf/a compliant files because of F
key." 

In the reported issue the input PDF file contains a Link annotation with no /F (Flags)
key defined. PDF/A states that only annotations with the 'Print' bit of the Flags field
are permitted. pdfwrite was emitting the annotation, thus creating an invalid PDF/A
file.

The new switch PDFCompatibilityPolicy allows the user to select the behaviour for these
kinds of events. The value defaults to 0, where the behaviour matches Acrobat, the file
is created, but is not PDF/A compliant, a warning to this effect is given. When set to
1, the content will be omitted, resulting in a compliant PDF/A file, a warning is
given for each piece of omitted content. Values other than 0 or 1 are treated as 0 and
a warning is given that the value is not understood.

Currently only implemented for annotations, it is expected this will be extended over
time.

[base/gdevpdfm.c base/gdevpdfx.h base/gdevpdfp.c doc/Ps2pdf.htm base/gdevpdfb.h]

2009-07-21T04:50:01.508924Z Alex Cherepanov

Add output buffer alignment code to one of the image handling branches
where it was omitted. Fix a SEGV on Sparc platform that cannot access
misaligned data. Bug 690613.

[base/gxiscale.c]

2009-07-20T05:10:46.340795Z Alex Cherepanov

Unobfuscate image scaling code: remove dead code, expand macros and typedefs.
All changes are algorithmically equivalent.

[base/siscale.c]

2009-07-19T03:58:54.979499Z Alex Cherepanov

Fix a typo in compile time flag that prevented GNU libiconv to emulate
system libiconv and caused link errors on the systems that use GNU headers
but system libraries. Bug 690123.

[contrib/opvp/gdevopvp.c]

2009-07-17T15:19:24.111289Z Alex Cherepanov

Initialize bit accumulator in LZW encoder to clear a Purify warning about
using an uninitialised value in an expression. The value itself is unimportant
because all bits that may affect the result are shifted out.

[base/slzwe.c]

2009-07-17T14:00:35.203729Z Alex Cherepanov

Fix processiong of numeric entry in /W2 array. Bug 690635.

[Resource/Init/pdf_font.ps]

2009-07-15T13:07:48.754703Z Ken Sharp

Fix (pdfwrite): Crash with font errors.

Details:
bug #690505: "Regression: More issues with pdfwrite and various nightly regression
files"

The font 'encode_char' method can return a 0 error code, but set the returned glyph
name to 'gs_no_glyph' to indicate that a glyph could nto be found in a valid font.

pdfwrite was then trying to get the glyph information for the 'gs_no_glyph' glyph, which
caused a crash in dict_index. Fixed by detecting the gs_no_glyph and returning an error.

[base/gdevpdte.c]

2009-07-14T03:35:22.419126Z Alex Cherepanov

Switch the order of an assignment and condition to fix (harmless) reading of
uninitialized memory. Clear a Purify warning.

[base/gxhintn.c]

2009-07-13T01:50:06.521945Z Ray Johnston

Add a couple of utilities for extracting Fonts and ICC Profiles from a
PDF. I had these laying around and the need for these comes up from 
time to time. See the top of each PostScript file for usage.

DETAILS:

It is the responsibility of creators of PDF's to not embed fonts that
are identified as not to be embedded. Ghostscript (as of rev 8603)
respects the TrueType FSType FontInfo.

The copyright and license of fonts and ICC profiles in a PDF will
still be in force. Any knowledgeable user can use Ghostscript
(or many other tools) to extract this information. We provide this
utility mostly to provide the 'source' for GPL'ed fonts as required
by fonts. Fonts are programs and distribution requires distribution
of 'source', so this lets users get the source and (using a font
editor) modify the font. See bug 690533 (if you must).

[toolbin/extractICCprofiles.ps toolbin/extractFonts.ps]

2009-07-11T17:49:45.436921Z Ralph Giles

Change the GPL Ghostscript license to GPLv2 or later, instead of GPLv2-only.

[LICENSE]

2009-07-09T13:09:11.914398Z Alex Cherepanov

Don't take empty string for an answer when searching 'name' table in TrueType
font because some MS fonts have empty strings for platform IDs MS doesn't
use. Bug 690611, customer 0.

[Resource/Init/gs_ttf.ps]

2009-07-09T05:59:44.622957Z Henry Stiles

Remove ad hoc code to draw thin rectangles.  It appears this code is
obsolete with respect to the current fill code.  Many fills adjusted
with this code will actually render without enlargement.  Differences
noted in the following files were insignificant or improvements.

comparefiles/012-05.ps
comparefiles/013-05.ps
comparefiles/067a_unc-stroke.pdf
comparefiles/298-09.ps
comparefiles/321-09.ps
comparefiles/86554321.pdf
comparefiles/Bug687603.ps
comparefiles/Bug687724.pdf
comparefiles/Bug687840.pdf
comparefiles/Bug687901.ps
comparefiles/Bug688485.pdf
comparefiles/Bug688631.pdf
comparefiles/Bug688807.pdf
comparefiles/Bug689083.pdf
comparefiles/Bug689516.pdf
comparefiles/Bug689842.pdf
comparefiles/Bug689918.pdf
comparefiles/Bug689978.pdf
comparefiles/Bug690115.pdf
comparefiles/Bug690206.pdf
comparefiles/Bug690395.pdf
comparefiles/Clarke-Tate-Manns-Chinese.ai
comparefiles/H00216q.pdf
comparefiles/LMG-40-7161-RU-DUC-01.pdf
comparefiles/Testform.v1.0.2.pdf
comparefiles/WD0010L0.pdf
comparefiles/annots.pdf
comparefiles/bug_687457.pdf
comparefiles/bulletin.pdf
comparefiles/knight.pdf
comparefiles/messenger.pdf
comparefiles/messenger16.pdf
comparefiles/p2b-100.pdf
comparefiles/z400454b01d4-1.pdf
pdf/PDFIA1.7_SUBSET/CATX2140.pdf
pdf/PDFIA1.7_SUBSET/CATX5233.pdf
pdf/PDFIA1.7_SUBSET/CATX9004.pdf
pdf/PDFIA1.7_SUBSET/CATX9214.pdf
pdf/PDFIA1.7_SUBSET/CATX9558.pdf
pdf/PDFIA1.7_SUBSET/IA3Z0005.pdf
pdf/PDFIA1.7_SUBSET/IA3Z0302.pdf
pdf/PDFIA1.7_SUBSET/IA3Z1351.pdf
pdf/PDFIA1.7_SUBSET/IA3Z3225.pdf
pdf/PDFIA1.7_SUBSET/IA3Z3356.pdf
pdf/PDFIA1.7_SUBSET/IA3Z3359.pdf
pdf/PDFIA1.7_SUBSET/IA3Z3519.pdf
pdf/PDFIA1.7_SUBSET/IA3Z3778.pdf
pdf/PDFIA1.7_SUBSET/IA3Z4373.pdf
pdf/PDFIA1.7_SUBSET/IA3Z4663.pdf
ps/ps3cet/11-01.PS
ps/ps3cet/11-26C.PS
ps/ps3cet/12-05.PS
ps/ps3cet/13-01.PS
ps/ps3cet/13-02.PS
ps/ps3cet/13-03.PS
ps/ps3cet/13-10.PS
ps/ps3cet/13-12.PS
ps/ps3cet/13-13.PS
ps/ps3cet/13-15.PS
ps/ps3cet/13-16.PS
ps/ps3cet/13-17.PS
ps/ps3cet/13-18.PS
ps/ps3cet/13-19.PS
ps/ps3cet/13-20.PS
ps/ps3cet/13-22.PS
ps/ps3cet/13-26.PS
ps/ps3cet/13-27.PS
ps/ps3cet/13-28.PS
ps/ps3cet/13-29.PS
ps/ps3cet/14-08.PS
ps/ps3cet/23-25.PS
ps/ps3cet/29-03.PS

[base/gxpaint.c base/gxcpath.c base/gxttfb.c base/gdevtrac.c base/gxacpath.c base/gxpaint.h base/gdevbbox.c base/gdevpdfd.c base/gxshade.c base/gxfill.c base/gxstroke.c base/gxclrast.c]

2009-07-09T00:28:02.323867Z Alex Cherepanov

Set default color and colorspace for colored pattern stream that relies on
default values; keep the color unset as required for uncolored pattern.
Bug 690609, customer 531.

[Resource/Init/pdf_draw.ps]

2009-07-08T14:18:43.038306Z Henry Stiles

This patch is a continuation of revision 9842, to derive the fill
adjustment parameter from the graphics state and not assume the value
is 1/2.  Interestingly, the patch seems to result in improvements for
postscript in several regression test files.  For example cet file
13-13.ps page 3 appears to improve the clipping of the large (W)
character.  Previously the (W) character obscured the line on the top
border of the page, now the line is visible.  Unfortunately the non
banded result is still wrong and with the fix does not match the
banded output.  Analysis of this issue is incomplete and ongoing.

[base/gxclrast.c]

2009-07-08T13:56:15.311074Z Ken Sharp

Fix (CID fonts): The fallback when totally failing to find a character code in a CMap
sets the CID to 0 (/.notdef) but failed to select a descendant font.

Details:
bug #690372 "Error: /undefined in %Type0BuildGlyph"

The PDF file is fundamentally flawed, the font uses the /Identity-H CMap for a font, but
the font uses single bytes for each character code, where the CMap expects 2 bytes for
every character code.

The font code falls back to using CID 0 (the /.notdef equivalent), but failed to select
a descendant font before returning. Because no descendant was selected GS was attempting
to extract the glyph from the type 0 font, which has no glyphs, and therefore failed 
with an undefined error.

The code has been modified to select a descendant font before continuing under these 
conditions.

[base/gschar0.c]

2009-07-08T06:02:40.134274Z Ray Johnston

Fix for segfault caused by dereference of a stale pointer (pgs->dev_color).
Bug 690519 detected with pkmraw during regression testing.

DETAILS:

If a GC was run during a pattern accum in the PS interpreter, the pgs->dev_color
structure could be moved. This was not tracked, probably because the dev_color
was assumed to be "dynamic". The fix performs gx_unset_dev_color during the
pattern_paint_cleanup (in zpcolor.c). This minimal change is all that is needed
since only the PS interpreter runs a "real" GC that moves structures.

[psi/zpcolor.c]

2009-07-06T17:20:39.998539Z Henry Stiles

The fill adjustment associated with the clipping path should be
derived from the graphics state, not set to the constant 1/2.  This
change results in many improvement for pcl which uses center of pixel
(fill adjust == 0) rendering.  It should result in no change for
postscript or pdf at high resolution, but we do expect many difference
at lower resolutions, where fill adjust is set to 1/4.  In the latter
case postscript and pdf paint with fill adjust set to 1/4 while
clipping paths are created with a fill adjustment of 1/2 which is
incorrect.

[base/lib.mak base/gxacpath.c]

2009-07-06T08:51:30.498667Z Ken Sharp

Fix (graphics library) : Conversion to base colour space of an /Indexed colour space was
not catering for spaces with a string lookup instead of a procedural lookup.

Details
Bug #690587 "setcolorspace + currentgray crashes GS 8.64"

The conversion from a colour in an indexed space to its alternate assumed a procedural
lookup and failed badly if the space had a string lookup.

[psi/zcolor.c]

2009-07-04T22:45:06.512463Z Alex Cherepanov

Add a check for a null value of SMask attribute in ExtGState. This also works
for invalid SMask reference, which is already converted to null.
Bug 690597, customer 870.

[Resource/Init/pdf_draw.ps]

2009-07-03T21:59:49.616755Z Ray Johnston

Fix for crash when tiles are outside printable areas seen with bug 690558.

DETAILS:

The 'fit_copy' macro adjusts the x, y, w, and h values, but since this is
a procedural macro and the 'FOR_RUNS' macro (also procedural) declares
local variables, for 'C' the 'FOR_RUNS ... END_RUNS' needs to be in
a block. The only real changes are the additions of 'fit_copy()'.

[base/gxclip2.c]

2009-07-03T09:27:02.706358Z Ken Sharp

Enhancement (TrueType fonts): Add support for Adobe's use of Identity CMap in PDF files,
when substituting a TrueType font, mapped as a CIDFont from disk, for a missing CIDFont.

Details:
bug #688515 "Need method to map CIDFonts to TrueType fonts when Ordering is Identity"
This issue also covers issues #689499, #688813, #689623 and #690483. 

When using a native TrueType font from disk as a replacement for a CIDFont, GS needs a
way to convert the character code used in the input file (either PostScript or PDF) into
a TrueType glyph ID (GID). 

When the TrueType font is declared (in cidfmap), the CSI entry contains an Ordering, this is concatenated with the CMAP declared in the actual TrueType font. This
information is used to create a CIDDecoding resource, certain  combinations (defined in
.CMapChooser) create CIDDecoding resources 'on the fly'.

A CIDDecoding resource simply maps a character code directly to a GID. Normally this
resource, when automatically created, is manufactured by converting the character code
to an internal code (using the declared CMap from cidfmap) and then converting the 
internal code to a GID using the TrueType CMAP table. Most often the internal code
is a Unicode code point.

The investigation in 688515 makes it clear that when we have an Identity CMap in a
PDF file the character code should be treated as the GID. This makes it very easy for 
us to construct a CIDDecoding resource, its a simple one-to-one. Unfortunately the 
existing machinery relies upon a CMap, and there is already a mapping for 
Identity.Symbol (An Identity CMap with a font whose CMAP table is a Symbol table).
We don't want to break this existing functionality, so the new code adds an entry
in .CMapChooser for Identity.Unicode (only to avoid errors) and then in the 
function which actually loads the TT font (load_sfnts in gs_cidtt.ps) we check
specifically for an Identity.Unicode Decoding. If we find one then we call a new
routine to create an Identity mapping (CIDMap) from character code to GID.

[psi/zcid.c psi/icid.h Resource/Init/gs_ciddc.ps Resource/Init/gs_cidtt.ps psi/zfcid1.c]

2009-07-02T00:38:01.021625Z Till Kamppeter

Use "Perceptual" as render intent for the presentation quality setting in the "cdnj500" (HP DesignJet) driver.

[contrib/gdevcd8.c]

2009-06-30T00:06:33.029648Z Alex Cherepanov

Extract all documents from PDF collection to temporary files and process them
in the order they are listed in the /Names array. Bug 690422, customer 531.

[Resource/Init/pdf_main.ps]

2009-06-29T12:33:28.939766Z Ken Sharp

gs_ciddc.ps is now in Resource/Init, not in lib as was stated in the documentation.

[doc/Language.htm]

2009-06-29T09:33:50.558685Z Ken Sharp

Enhancement (pdfwrite & ps2write) : Optionally convert Separation and DeviceN spaces to their alternate space.

Detalis:
bug #690582 "Disabel /Separation and /DeviceN colour space preservation"

When creating a colour space for output, allow the user to insist that Separation and
DeviceN spaces be converted to their alternate space.

[base/gdevpdfx.h base/gdevpdfp.c doc/Ps2pdf.htm base/gdevpdfc.c base/gdevpdfb.h]

2009-06-26T12:42:29.607606Z Alex Cherepanov

Look into JPX stream to get color space and color depth when it is omitted
from the image dictionary. Bug 690518, customer 850.

DETAILS:
This is a minimal implementation that intentionally uses device dependent
color spaces instead of device-independent ones for full backward
compatibility.

[Resource/Init/pdf_base.ps Resource/Init/pdf_draw.ps]

2009-06-23T22:24:57.094170Z Michael Vrhel

Fix for bug690546.  Problem was caused by double application of opacity for knockout fills.  The opacity was being applied in the alpha value and in the opacity value.  The alpha value is the product of the shape and opacity and can be used directly.

[base/gdevp14.c]

2009-06-23T07:24:50.757746Z Ken Sharp

Fix (pdfwrite) : Update 'where_used' in case object is used across pages

Details
Bug #690056 "Error with embedded image in generated PDF: XObject not found"

Pdfwrite tries to detect reuse of objects, and only emit a single copy when this occurs.
However on return from pdf_substitute_resource several places do not set the
'where_used' field. If the object is used on a different page to the one where it is 
defined, this causes it not to be listed in the page Resources.

Update two of the places where this occurs to resolve the problem.

[base/gdevpdft.c]

2009-06-22T11:22:48.383638Z Russell Lang

Add the Windows installer manifest when building with Visual Studio 2008.

[psi/msvc32.mak]

2009-06-22T07:41:34.716284Z Ken Sharp

Fix a technically uninitialised variable (Coverity warning).

[base/gdevpdti.c]

2009-06-22T07:41:01.524464Z Ken Sharp

Fix a minor Coverity warning about implicit function declarations.

[base/gdevpdfb.c]

2009-06-21T21:22:33.385661Z Russell Lang

Add manifest files to the Windows setup and uninstall programs,
to force Windows Vista to run them as Administrator.
Bug 690510.

[psi/dwsetup_x64.manifest psi/dwuninst_x64.manifest psi/dwsetup_x86.manifest psi/dwuninst_x86.manifest]

2009-06-21T04:38:47.415879Z Russell Lang

Remove support for cross compiling of Win64 ghostscript on
Windows 32-bit using Visual Studio .NET 2003 with a 
Win64 compatible DDK.
Ghostscript for Win64 must now be built on 64-bit Windows,
to assist with compiled resources. 
Visual Studio 2005 and 2008 are currently supported for 64-bit.

[doc/Make.htm base/msvccmd.mak psi/msvc32.mak]

2009-06-21T04:23:05.005351Z Russell Lang

Add manifest files to the Windows setup and uninstall programs,
to force Windows Vista to run them as Administrator.

[doc/Develop.htm psi/msvc32.mak]

2009-06-20T17:29:39.375319Z Alex Cherepanov

Add TrimBox support and a corresponding -dUseTrimBox option. Bug 690547.

[Resource/Init/pdf_main.ps doc/Use.htm]

2009-06-19T12:14:20.778442Z Ken Sharp

Fix (pdfwrite) : Make type 3 bitmap font text-searchable if possible

Details
Bug #690430 "PCL to PDF creates non-searchable text with incorrect font bbox"

There were several changes which needed to be made here, in particular

1) Prevent the PDF text routines updating the text state when using type 3 bitmap
   fonts, as this caused each glyph to be emitted individually.

2) Change the way bitmap glyphs are recorded and drawn, previously each glyph origin
   was the top of the glyph, which meant that different height glyphs had effectively
   differing baselines. The need to shift y position caused glyphs to appear on 
   different PDF 'lines', which prevented searching

3) Hone some internal heuristics which prevented large kerning values and caused glyphs 
   to be placed individually.

[base/gdevpdti.h base/gdevpdfx.h base/gdevpdts.c base/gdevpdfb.c base/gdevpdt.h base/gdevpdti.c]

2009-06-19T10:53:11.324517Z Ken Sharp

Add a couple of missing initialisers to the PDF device structure. Spotted this problem while working on another issue.

[base/gdevpdfb.h]

2009-06-18T22:06:41.250732Z Marcos H. Woehrmann


Add A5 to the list of PCL output paper sizes.  Thanks to peter.berndts@oce.com for the patch.

Fixes bug 690532.

[base/gdevpcl.h base/gdevpcl.c]

2009-06-18T05:16:48.708579Z Ralph Giles

Handle 4-bit grayscale JPXDecode images.

This is a minimal patch to fix bug 690174.

The file has a JPXDecode stream with 4 bits per component. The image
dictionary has the correct matching /BitsPerComponent and /ColorSpace
keys, but the stream filter was returning the pixel data as the low
nibble in 8 bit pixels.

This is a minimal fix: if the first component of the data is 4 bpc,
divide the stride in half, then in copy_row_gray, pack two pixels
per byte when returning the data.

[base/sjpx.c]

2009-06-17T03:25:25.702690Z Alex Cherepanov

Fix memory corruption caused by long names. The length of name in the scanner
buffer may exceed the maximum name size and should be checked. Bug 690523.

[psi/iscan.c]

2009-06-17T02:17:49.344749Z Alex Cherepanov

Fix detection of extra Q operators in the page contents stream, which never
worked before. Remove some level 1 rudiments and comment the code.
Bug 690540, customer 750.

[Resource/Init/pdf_ops.ps]

2009-06-16T22:05:41.362092Z Henry Stiles

Add a graphics library rom file system variable.  For now this will be
used to hold the icc and wts files associated with the wtsimdi device.
No expected differences.

[base/lib.mak]

2009-06-14T22:57:22.467309Z Michael Vrhel

Fix for access violation that can occur when processing PS files with spot colors into a sep device.

DIFFERENCES EXPECTED:
None

DETAILS:
Number of separations was being obtained from page_spot_colors but should be obtained from separations.num_separations.  This was causing the elements of map_comp_to_sep[comp_num] to not be properly initialized for later use in tiffsep_print_page.

[base/gdevtsep.c]

2009-06-13T14:33:18.520606Z Alex Cherepanov

Export t1_glyph_equivalence table, which provides alternative glyph names.
Modify pf2afm.ps to disable glyph aliasing and generate AFM files that
match the font. Bug 689014.

[Resource/Init/gs_type1.ps lib/pf2afm.ps]

2009-06-13T01:20:00.314754Z Marcos H. Woehrmann

Add yet another _NMAKE_VER check (9.00.30729.01) to msvc32.mak to
detect MSVC_VERSION 9 (there has be a better way of doing this).
This surpresses a couple of warnings for each cl invocation but
shouldn't effect the build.

[psi/msvc32.mak]

2009-06-10T13:10:31.212563Z Ken Sharp

Fix (pdfwrite): Bug in pdfmark processing

Details
Bug #690525 "hyperlinks in pdf off by one page since revision 9779"

Revision 9779 fixed a problem when a DOCVIEW pdfmark did not specify a /Page or View to
open the file on. This caused an extra page reference to be created, which caused an
invalid xref to be created.

This was fixed by altering the page count, but this caused real DEST pdfmarks not to
work properly under some conditions.

Restored the page count, and used the presence of either a /Page or /View pdfmark to
generate a page number, if neither is present no page number is created. This fixes
both issues.

[base/gdevpdfm.c]

2009-06-09T03:32:01.703357Z Henry Stiles

Changed to use memset when filling white and black lines of a
rectangle.  This provides about a 10% speedup over copying a byte at a
time when printing long jobs where a significant amount of time is
spent whitening the page, this improvement was observed on a 2.53 GHz
Intel Core 2 Duo (Mac OS X) and we expect similar results on other
platforms.  No expected changes, the code is functionally equivalent.

[base/gdevwts.c]

2009-06-08T18:16:29.884697Z Ray Johnston

Provide for filling zero width areas to prevent dropout in some strange stroked
characters. This seems to be the intent of the code, and definitely conforms to
the PS PLRM, but the PDF Reference Manual says zero width fills may or may not
be filled (although Adobe Acrobat does). This is not (yet) enabled by default,
but is provided to simplify regression analysis and for customer 531, bug 690466.

DETAILS:

The original code in gxfill.c seems quite strange in that usually it will fill
horizontal areas sue to the 'adjust_above' and 'adjust_below', but depending
on the coordinate, this would sometimes NOT include the horizontal segment.

The change to gxfilltr.h adds vertical segments when PSEUDO_RASTERIZATION
is in the 'template' (as before) as well as when FILL_ADJUST is in the
'template' and the 'adjust' left and right values are > 0.

[base/gxfilltr.h base/gxfill.c]

2009-06-08T03:10:40.894198Z Henry Stiles

Previously we identified a banding device by checking if its
get_bits_rectangle procedure was the same as the procedure used in the
constant procedure declarations gs_clist_device_procs.  This
conditional has not been correct since the multi-threaded code, the
get_bits_rectangle() procedure is overridden with a new procedure
get_bits_rectangle_mt() and all devices were detected as non-banding.
We change the procedure checked to be open_device and don't expect
this to be overridden, but the code is still somewhat awkward.

The broken conditional resulted in non deterministic behavior in the
wtsimdi device, indirectly causing the complexity array to be
uninitialized.

[base/gdevprn.c]

2009-06-05T12:52:53.651342Z Ken Sharp

Fix (pdfwrite) : Bug with DOCVIEW pdfmark handling

Details
bug #690514 "PageMode DOCVIEW pdfmarks result in broken PDF file"

Using the the /PageMode DOCVIEW pdfmark without using another DOCVIEW pdfmark
which directly references a page (eg specifying the page to open on via /Page)
results in a spurious extra entry in the xref table, referencing the first page
object.

This is caused by the pdfwrite routine 'pdfmark_make_dest' which calls
'pdfmark_page_number'. If there is no specified /Page in the pdfmark, then a new
page reference for the 'next' page is allocated in the xref table, using the
location of the current page. This is the source of the spurious entry.

Note that the DOCVIEW code seems to assume that there be at most one /Page or /View
pdfmark in the array.

Fixed by decrementing the page count in pdfmark_page_number if the string being
parsed for a page number is empty.

[base/gdevpdfm.c]

2009-06-05T05:55:54.211001Z Alex Cherepanov

Switch to 32-bit PostScript integers on 64 bit platform. Bug 690474.

[psi/iparam.c psi/zfile.c psi/zfunc4.c psi/zcontrol.c psi/ibnum.c psi/ztype.c psi/zdict.c psi/iscannum.c psi/idparam.c psi/zfcid0.c psi/ibnum.h psi/zdps.c psi/zmath.c psi/iscanbin.c psi/iutil.c psi/iref.h psi/iscan.c psi/idebug.c psi/zstack.c psi/ziodev.c psi/zarith.c base/gsalloc.c psi/zgeneric.c]

2009-06-05T04:25:51.460104Z Alex Cherepanov

Validate /Border attribute of annotations. Following AR, use invisible border
when /Border value is incorrect. Bug 690509.

[Resource/Init/pdf_main.ps Resource/Init/pdf_draw.ps]

2009-05-31T02:50:09.248528Z Alex Cherepanov

Current PDF font loader fails when Type 1 font executes 'restore' at the end
of the file and discards all the collected data. The patch breaks the check
for /UniqueID in the font to force a branch without 'restore'. Bug 690502.

[Resource/Init/pdf_font.ps]

2009-05-30T00:22:20.429756Z Ray Johnston

Fix the file stream opening logic so that when the open failed, it did not leave
buffers and other structures up to the GC for collection. This only affected PS
and PDF, but happened on files that needed fonts that were not immediately in the
Fontmap. This resulted in up to on the files from bug 690422.

DETAILS:

Since the file streams were allocated in 'system' VM, and the 'limit' was not
set when the vmthreshold was set, this "leak" could result in excessive GC
colletion operations.

[base/sfxcommon.c base/stream.c]

2009-05-29T14:02:04.750188Z Ken Sharp

Fix (Graphics library) : Inappropriate testing of shading co-ordinates

Details
The Gouraud free-form mesh shading code was testing to see if the Xmin and Xmax
co-ordinates of the Decode array were the same, and flagging an error if so. The spec
does not say this is an error and Acrobat happily displays the PDF. In addition there
was no test against Ymin and Ymax, so the test has been removed

[base/gsshade.c]

2009-05-29T06:48:44.622628Z Ralph Giles

Update the included copy of jbig2dec with the 0.10 release.

This merges changed made to the version of the gs tree with upstream
fixes, including the buffer overrun fix for CVE-2009-0196. See
CHANGES for a more complete summary.

[jbig2dec/aclocal.m4 jbig2dec/config_win32.h jbig2dec/sha1.c jbig2dec/jbig2_metadata.c jbig2dec/jbig2_image_pbm.c jbig2dec/install-sh jbig2dec/jbig2.c jbig2dec/jbig2_generic.h jbig2dec/jbig2_image.c jbig2dec/configure jbig2dec/Makefile.in jbig2dec/jbig2_metadata.h jbig2dec/jbig2.h jbig2dec/jbig2_priv.h jbig2dec/jbig2_image_png.c jbig2dec/jbig2_image.h jbig2dec/depcomp jbig2dec/compile jbig2dec/jbig2dec.c jbig2dec/os_types.h jbig2dec/config.h jbig2dec/configure.ac jbig2dec/jbig2_arith.c jbig2dec/jbig2_symbol_dict.c jbig2dec/jbig2_arith.h jbig2dec/jbig2_page.c jbig2dec/jbig2_symbol_dict.h jbig2dec/jbig2_arith_int.c jbig2dec/jbig2_hufftab.h jbig2dec/jbig2_huffman.c jbig2dec/jbig2_text.c jbig2dec/jbig2_arith_int.h jbig2dec/jbig2_text.h jbig2dec/jbig2_huffman.h jbig2dec/jbig2_mmr.c jbig2dec/jbig2_refinement.c jbig2dec/jbig2_arith_iaid.c jbig2dec/jbig2_mmr.h jbig2dec/memcmp.c jbig2dec/test_jbig2dec.py jbig2dec/jbig2_arith_iaid.h jbig2dec/config.h.in jbig2dec/jbig2_segment.c jbig2dec/Makefile.am jbig2dec/missing jbig2dec/jbig2_generic.c]

2009-05-25T13:38:00.787533Z Ken Sharp

Fix (colour handling): improper handling of ICCBased space with a /Alternate ICCBased
    space

Details:
bug #690495 "Error: /typecheck in --@0x1007f6f0--"

It is technically possible (apparently) for a PDF file to contain an ICCBased space
which has an /Alternate space which is also an ICCBased space. The existing
validation code assumed this would not be the case and reused a reference if the
latter space had no /Alternate in order to select an appropriate final Alternate.

This led to the latter ICCBased space being replaced by the selected default space,
which meant we had fewer spaces than expected when actually setting the space.

Fixed by inserting the selected appropriate default space into the ICC dictionary as
an /Alternate and revalidating the modified space.

[psi/zcolor.c]

2009-05-24T10:16:57.483100Z Ralph Giles

Fix an uninitialized variable warning in FAPI_do_char.

Details:

Previously the local variable 'code' was used for incidental return 
value checks, but *also* to set cr.is_glyph_index in in the CID font 
case. This is because cid_to_TT_charcode() returns 1 on success, but
if it can't find a character code for the given cid, it sets the
character code to zero and returns zero itself to indicate failure.

Zero makes more sense as a glyph id (.notdef) than as a character
code, so in this case it's appropriate to set is_glyph_index based
on this. The other paths which set 'code' all deal with truetype
fonts, so the default success value of zero is also correct.

However, there were in theory code paths where code was never set,
and so is_glyph_index was being set from an unitialized value; thus
the gcc warning. And the double-use of the variable 'code' was hard
to read. This commit adds a separate boolean to track whether we've
found a character code or not and sets cr.is_glyph_index based on
that.

[psi/zfapi.c]

2009-05-23T19:11:37.254849Z Ralph Giles

Remove an unnecessary duplicate typedef. Coverity issue 4183.

[base/gdevp14.h]

2009-05-23T19:02:08.125913Z Ralph Giles

Remove an unnecessary header include.

Coverity issue 2497.

[base/lib.mak base/sjpx.c]

2009-05-23T18:37:21.743759Z Ralph Giles

Remove some unused variables.

I've left one, the subarray_index, since it may be intended for future 
development. The others were all trivial.

[psi/zfapi.c]

2009-05-23T16:59:58.327296Z Ralph Giles

Correct a cut-and-paste error in r9742.

The blend values array logic for multiple master fonts was writing
integer element values with a floating point specifier. These are
normally floats, which is probably why the error wasn't noticed in
testing. Flagged by Coverity as issue 4326.

[psi/zfapi.c]

2009-05-23T15:36:33.756259Z Alex Cherepanov

Trap /ioerror and load the font by name when embedded font stream is
unreadable. Bug 690492.

[Resource/Init/pdf_font.ps]

2009-05-22T09:11:26.614602Z Ralph Giles

Remove a duplicate gs_memory_t structure member from the trace device.

In r8803 the image_enum memory pointer was moved from the various
subclasses into the common portion of the structure (the superclass).
In oversight, that change was not make to gdevtrac.c, breaking
compilation because of the now-duplicate member name. This went
unnoticed until now because the trace device isn't part of any
standard build.

Note that I've only fixed the compile error. I have not verified
that the trace device still functions properly.

[base/gdevtrac.c]

2009-05-22T09:03:35.793845Z Ralph Giles

Correct a typo in the unused gsparam2.c.

This was broken in r2849, but went unnoticed because the parameter
api rewrite was never developed further. This file isn't part of
any standard build.

[base/gsparam2.c]

2009-05-21T23:46:45.296083Z Marcos H. Woehrmann


Minor changes for Luratech decoders command line options.

[base/Makefile.in]

2009-05-21T19:16:25.645959Z Ralph Giles

Update documentation with the new location for dmmain.

[doc/Develop.htm]

2009-05-21T19:13:36.537944Z Ralph Giles

Move the Classic MacOS gsapi client example code to psi, where it more 
properly belongs.

[base/dmmain.r base/dmmain.c psi/dmmain.r psi/dmmain.c]

2009-05-21T19:11:13.444391Z Ralph Giles

Comment improvement in the font api implementation.

[psi/zfapi.c base/gxfapiu.c base/gxfapiu.h]

2009-05-21T12:40:07.902153Z Till Kamppeter

The "ps2write" output device produces PostScript which is not DSC-conforming, so do not advertize it as DSC-conforming with a "%!PS-Adobe-..." magic string. Use "%!" instead. Otherwise the "pstops" CUPS filter cannot handle this output (Ubuntu bug #377011).

[base/gdevpdfu.c]

2009-05-20T22:33:12.105223Z Till Kamppeter

pstoraster did not work when called with an input file name as the 6th command line argument.

[cups/pstoraster.in]

2009-05-20T22:30:48.432212Z Till Kamppeter

Fixed recognition of page size via /cupsPageSizeName. All page sizes were considered custom sizes if /cupsPageSizeName was not set.

[cups/gdevcups.c]

2009-05-20T12:17:22.906937Z Tor Andersson

Reformat code to improve readability and fix messed up tab/space indentation. Also removed the m_ prefix on struct fields.

[psi/fapi_ft.c]

2009-05-19T22:57:04.259848Z Alex Cherepanov

When /Length attribute is incorrect, PDF interpreter removes it from the
stream dictionary. Add support of missing /Length attribute to the pattern
handling code. Bug 690488.

[Resource/Init/pdf_draw.ps]

2009-05-16T15:29:35.814286Z Alex Cherepanov

Bind all procedures in ps2ai.ps to prevent errors caused by redefined
operators, such as redefinition of 'length' as a number in
examples/colorcir.ps. Bug 690484.

[lib/ps2ai.ps]

2009-05-15T12:13:25.677962Z Ken Sharp

Fix (FAPI) : FAPI doesn't support Multiple Master fonts

Details
The FAPI code manufactures a stream containing font data for the benefit of FreeType.
However, when manufacturing a type 1 font stream it did not account for the possibility
of a Multiple Master font (or instance of a MM font). This caused FreeType to generate
an error when trying to process glyphs using MM operations.

Extended the existing code to manufacture the WeightVector array, $Blend procedure,
BlendDesignMap array, BlendDesignPositions array and BlendAxisTypes array if present
in the original font.

[psi/zfapi.c psi/ifapi.h psi/write_t1.c]

2009-05-13T23:37:28.142726Z Alex Cherepanov

Consider PDF files that has /StmF attribute but no /CF attribute as having
ARC4 encryption. Bug 690478.

[Resource/Init/pdf_sec.ps]

2009-05-12T20:22:11.794604Z Marcos H. Woehrmann

Removed reference to obsolete file (lwf_jp2_geo.h) that has been merged into lwf_jp2.h.

[base/lwf_jp2.mak]

2009-05-12T10:10:53.385307Z Ken Sharp

Fix (ps2write) : Crash caused when converting large shading to image.

DETAILS :

Bug 690475 "ps2write" segfaults on PDF file of CUPS test suite".

When converting a shading to an image for PostScript output, and the resulting image is
large (> 512Kb), the code attempts to select an appropriate compression filter. As part
of doign this it probes the colour space in an attempt to determine what kind of space
it is. However this doesn't work when we have created the image ourselves, as tehre is
no associated imager state to probe the colour space resulting in a crash.

Modified the compression selection code to not probe the space if there is no imager
state.

[base/gdevpsdi.c]

2009-05-11T15:19:46.521973Z Ken Sharp

Fix (FAPI) : Type 2 fonts with local Subrs fail

Details
Type 2 (CFF) fonts may have both local and global subroutines. Normally fonts will only
contain a global set, while FontSet fonts may contain both a global set, and a local set
per font.

The FAPI code, when converting an internal GS representation back into a CFF stream,
incorrectly conflated the local and global Subrs into a single GSubrs (global subrs)
dict. Additionally it pushed the local subrs first. The result of this is that glyphs
using a callgsubr operator retrieved the subroutine, and glyphs using a callsubr would
fail because no local Subrs were defined.

Extended the FAPI code to retrieve the local and global subrs separately, to write a
local /Subrs dict if required, and to correctly calculate the /Subrs offset and store
it in the font Private dict when a /Subrs dict is present.

[psi/zfapi.c psi/ifapi.h psi/write_t2.c]

2009-05-10T20:56:12.436440Z Henry Stiles

Fill in omitted paper sizes as part of fixing bug #689677.  Thanks to
Jeffrey Vance for providing several of these paper dimensions.  No
regression differences are expected.

[base/gdevpxen.h]

2009-05-10T16:44:00.640518Z Marcos H. Woehrmann

Use 32 bits for fixed coordinates even on 64 bit cpus.

Details:

The fixed coordinate system used to be dependent on the size of a long.
On x86_64 and other 64 bit systems this was 8 bytes but 4 bytes on other
systems. 

Fixes Bug 690434.

[base/gxfixed.h]

2009-05-10T02:59:01.912309Z Ray Johnston

Fix regression caused by the changes to make PCL work. Bug 690463.

DETAILS:

The primary culprit was that the 'iblock' calculation didn't work if the
entire 'cbuf' wasn't empty. The token scanner sometimes refilled when there
was still data in the buffer. The 's_block_read_seek' also needed to make
sure that the cursor.r ptr and limit (srptr and srlimit) is set correctly
before loading the block at the new position. Tested with PCL and PS on
the cluster (and of coures on my Windows machine).

[base/gsiorom.c]

2009-05-08T13:13:26.891026Z Ken Sharp

Fix : Windows drag&drop has a fixed path limit of 80 characters.

Details
Bug #690461 "ghostscript can't handle files with long name-paths"

The real issue is that the drag-and-drop interface had a fixed buffer of 80
characters, and was unable to process files beyond that limit.

It looks like the original code was from some boiler plate sample. Updated the code
to use the DragQeryFiles API call to find the length of the full path specification
and then malloc a buffer to hold it. Although we would never normally use the system
malloc call, this should not be a problem in the Windows-specific code.

[psi/dwtext.c psi/dwimg.c]

2009-05-07T15:45:58.755801Z Ken Sharp

Fix PostScript interpreter : ICC colour space could cause crash

Details
Bug 690472 "ghostscript crashes on pdf file"

The code to parse the /Range from an ICC profile stores the data in an array of floats.
However, when the Range data was present, the values were incorrectly stored at array
locations twice the proper index.

This could lead to buffer overflow which in this case corrupted the ICC dictionary being
used, causing a crash.

Surprisingly this did not come up in testing.

[psi/zcolor.c]

2009-05-07T13:06:10.554451Z Ken Sharp

Fix (FAPI) : FAPI doesn't handle Encoding arrays of type mixed_array

Details
It seems that fonts can sometimes have a 't_mixedarray' Encoding array, odd but true.
The FAPI code assumed that Encodings would either be t_array or t_shortarray. Altered
the code to allow for t_mixedarray as well.

[psi/zfapi.c]

2009-05-07T12:46:25.039496Z Ken Sharp

Fix (FAPI) : FAPI fails when FontBBox is missing

Details
(see also rev 9692) The FAPI code attempts to modify the FontBBox in the font
dictionary after rebuilding a font with a non-GS font renderer. If the FontBBox is
missing this creates an error condition. This is generally correct, FontBBox is a 
mandatory entry in a font dictionary.

However, the code can be called to define a (PDF) type1C font, a CFF font, and it is
possible (Bug689740.pdf) that the top DICT does not contain a FontBBox. In this case
we should inherit the FontBBox from the FontDescriptor in the PDF file, but we don't
have a mechanism to do that. 

Since PDF isn't a programming language the scope for using the FontBBox is pretty
limited, so for now I've chosen to ignore the error.

[psi/zfapi.c]

2009-05-05T10:40:10.582721Z Ken Sharp

The revision 9699 to quiet a Coverity warning incorrectly tested a char * instead of a
char ** for NULL.

[base/gdevpdtc.c]

2009-05-05T10:28:48.253152Z Ken Sharp

revision 9714 reformatted a test in a way which left dead code behind. Put the test
back as it was, there was no functional difference anyway, this was just done for
investigative purposes.

[psi/zfapi.c]

2009-05-04T10:59:18.106139Z Till Kamppeter

Removed "cupsEvenDuplex" PPD keyword handling from the "cups" output device again. This keyword is already handled by the pstops and pdftopdf CUPS filters.

[cups/gdevcups.c]

2009-05-02T03:12:55.350064Z Alex Cherepanov

Commit .h file missed by the previous revision. Bug 690318, customer 631.

[base/gdevtifs.h]

2009-05-02T00:38:13.087492Z Ray Johnston

Supprt -dBigEndian=[true | false] so that the TIFF can be optimized for a
target host on a machine of another 'endian' byte orientation. This is a
mostly worthless change since the raster data doesn't change (only 16 or
32-bit values have endian issues). Thanks to wendyst2 at gmail.com for
this fix. Bug #690318.

[base/gdevtifs.c base/gdevtsep.c base/gdevtfnx.c base/gdevtfax.c]

2009-05-02T00:03:15.297730Z Ray Johnston

Add an 'IODevice' aware layer for filesystem enumeration 'gs_enumerate_*'
which needs to be used whenever the file is not known to be on the default
iodev (%os% by default). Use this in the PDL parser to open fonts so that
COMPILE_INITS=1 does not need the fonts on the disk.

The default PXL/PCL builds now use COMPILE_INITS=1.

Fixes bug #690367.

DETAILS:

The %rom%ttfonts/ path is placed BEFORE the built-in paths in pjparse.c,
but NOTE: the PCLFONTSOURCE environment variable will still supersede
the internal paths including %rom%ttfonts.

[base/gxiodev.h base/gsiorom.c base/gsiodev.c]

2009-05-01T03:39:24.695161Z Alex Cherepanov

Check for unbalanced q/Q operators in content streams of PDF forms.
Add missing Q when needed and issue a warning. Bug 690449, customer 870.

[Resource/Init/pdf_draw.ps]

2009-04-30T18:34:49.698412Z Michael Vrhel

Fix for case when blending color space of soft mask is not specified.

DETAILS:

When the blending color space for the soft mask is not specified, the blending color space is set to UNKNOWN.  This is later resolved when the compositor action is handled.  In this case, the parents color space or the device color space is used for blending.  The code was in place 
to do this for a transparency group that did not have a defined color space but not for a soft mask. This caused bug 690457 with gxps which should now be resolved.

[base/gdevp14.c base/gstrans.c]

2009-04-30T13:14:10.674985Z Ken Sharp

Fix (FAPI): Incremental Type 42 font with GlyphDirectory & missing glyphs fails

Details
The FAPI code assumed that the routine to extract glyph data from sfnts would always
work when a GlyphDirectory is present, and used glyf + loca if this routine failed, 
assuming that this meant there was no GlyphDirectory. However, the test file
Bug687845.ps contains a type 42 incrementally downloaded font which uses a
GlyphDirectory and also attempts to access glyphs which aren't defined in the
GlyphDirectory.

This caused the code to try and use the loca and glyf tables, which aren't present,
which caused an error.

Modified the FAPI code to return a glyph length of 0 when we have a GlyphDirectory but
no defined glyph. This causes GS to render nothing, which matches the regular result as
well as the action of Acrobat.

[psi/zfapi.c]

2009-04-30T11:15:04.348733Z Till Kamppeter

Adde support for the "*APDuplexRequiresFlippedMargin:" PPD keyword to the "cups" output device, fixed also the margin handling for custom paper sizes.

[cups/gdevcups.c]

2009-04-30T10:41:48.084860Z Till Kamppeter

Fixed unprintable margin handling of the "cups" output device.

[cups/gdevcups.c]

2009-04-29T18:02:50.832175Z Ralph Giles

Whitespace, line length and C-style improvements to gscolorbuffer.[ch].

These files tend to use 8 spaces instead of tabs; I haven't corrected
many of these.

[base/gscolorbuffer.c base/gscolorbuffer.h]

2009-04-29T17:02:43.113835Z Ralph Giles

Remove a documentation reference to the gsindent script, which was
removed in r8455.

[doc/C-style.htm]

2009-04-29T16:56:02.841961Z Ralph Giles

Always initialize the color_remap function pointer.

Details:

NULL here means a straight memcpy, and the first case statement set
that explicitly as a fallback. However, the second did not, so it
was possible to reach the check on line 204 without initializing
color_remap.

[base/gscolorbuffer.c]

2009-04-29T16:39:58.702496Z Ralph Giles

Set native line endings and keyword substitution on gscolorbuffer.[ch].

[base/gscolorbuffer.c base/gscolorbuffer.h]

2009-04-29T11:27:38.521368Z Marcos H. Woehrmann

Fixed compiler warning about /* within comment.

[base/gdevp14.c]

2009-04-28T22:11:03.867873Z Ralph Giles

Remove the unused including of gxlum.h in the inferno device.

The luminance weighting contants aren't used in the inferno driver.

[base/gdevifno.c base/contrib.mak]

2009-04-28T22:06:04.042908Z Ralph Giles

Remove the stdlib.h include from the inferno device.

This is no longer needed since the malloc/free calls were replaced
with gs allocator calls in r9687.

[base/gdevifno.c]

2009-04-28T18:41:43.426030Z Till Kamppeter

"cups" output device: Added support for "cupsEvenDuplex" PPD keyword.

[cups/gdevcups.c]

2009-04-28T16:44:09.981559Z Till Kamppeter

"cups" output device: Added support for the new "*cupsBackSide:" PPD keyword, fixed "*cupsFlipDuplex:" for landscape documents.

[cups/gdevcups.c]

2009-04-28T15:10:49.837556Z Alex Cherepanov

Take measures against Type 1 fonts that do 'systemdict begin' and
bypass all our font loading tricks. Bug 690450, customer 870.

[Resource/Init/pdf_font.ps]

2009-04-28T13:31:02.272975Z Ken Sharp

Ensure the pointer to standard cmap names is properly initialised before dereferencing
it. This is only to silence Coverity, the pointer is initialised to a static array and so
should never be invalid.

[base/gdevpdtc.c]

2009-04-28T13:23:46.582627Z Ken Sharp

Correct a potential buffer overrun. This looks like an oversight, the maximum size is
properly calculated taking the buffer length and data size into account, and used to
copy the data, but the trailing 0x00 (C string terminator) was written using the data
size without checking for a buffer overrun.

Warning from Coverity.

[base/gstype42.c]

2009-04-28T13:16:17.700417Z Ken Sharp

Check return value from cos_dict_put_key when writing document metadata. Warning from Coverity.

[base/gdevpdfe.c]

2009-04-28T09:04:10.426584Z Ken Sharp

Fix (pdfwrite) : Enlarge the hardcoded threshold for subsetting True Type fonts.

DETAILS :
Patch and log supplied by Leonardo.

Bug 689236 "pdfwrite disregards -dSubsetFont= with TrueType". 

This fixes the valid part of the bug, which is related
to not-subsetting True Type fonts. The supplied example
exceeds the hardcoded constant of 500 glyphs,
so the font was always subset. Here we enlarge
the threshold to a more reasonable value. Note it doesn't
affect regular runs with "standard" distiller parameters.

ref# leo2079.

[base/gdevpdtb.c]

2009-04-27T16:24:33.581172Z Ken Sharp

Fix (FAPI) : FAPI fails when FontBBox is a packed array

Details
The FPAI code attempts to modify the FontBBox in the font dictionary after rebuilding a
font with a non-GS font renderer. However it assumed that the FontBBox would always be a regular array, capable of handling real numbers.

Some fonts have FontBBox arrays which only contain small integers, and which are 
therefore stored as packed arrays (t_shortarray in GS). This was cuasing the FAPI code
to throw an error.

Modified the code to replace the packed array with a full array before filling in the
new values, if the original array was packed.

[psi/zfapi.c]

2009-04-27T16:02:10.792862Z Till Kamppeter

Let "cups" output device take into account page size names.

The "cups" output device has selected the page size for determining
the margins only by the size and not by the name. So it was not
possible to have different page size entries with the same size and
different margins in the PPD, for example for fullbleed. This is fixed
now.

Fix done after a report from the HPLIP team on the OpenPrinting Summit
2009.

[cups/gdevcups.c]

2009-04-27T06:25:19.306977Z Alex Cherepanov

Fix 2 oversights in AES decryption code: (1) add enumeration of ctx member in
AES state. Unmovable blocks are still garbage collected and need enumeration;
(2) use correct names to access /CFM attribute in PDF file.
Bug 688958, customers 870, 850, 531.

[base/saes.h Resource/Init/pdf_sec.ps]

2009-04-24T17:39:56.201358Z Ralph Giles

Replace malloc with gs_alloc_bytes in the inferno device.

Details:

The inferno device allocates an image writer struct in initwriteimage,
and later frees it when a null buffer is passed to writeimageblock.

We prefer to use gs_alloc_bytes instead of calling system malloc
because it respects memory contraints requested by the client. Note
however that the w pointer is local to inferno_print_page and not
traceable. This is fine and the structure doesn't have a lifetime
outside that function. If it did, it would need to be stored and
enumerated in inferno_device.

Note that this requires modifying the two utility functions to take
a memory pool pointer.

[base/gdevifno.c]

2009-04-24T17:39:54.075505Z Ralph Giles

Dynamically allocate the inferno line buffer.

Previously, the scanline buffer was a 16k stack allocation. We still
reject bitmaps larger than that because of format limitations (so large
jobs above 300 dpi often fail with the inferno device) but now we
only allocate as much storage as needed, and on the heap instead of
the stack.

[base/gdevifno.c]

2009-04-24T14:10:48.907852Z Ken Sharp

Enahncement (FAPI) : Allow FAPI to work with pdfwrite.

DETAILS :

FreeType could not be used with pdfwrite for any purpose, even to render
fonts for bitmap fallback. This seems overly pessimistic. 

This patch allows FAPI font rendering engines to work with pdfwrite, this 
will mean the FAPI interface is used for the selected types of font (see 
FAPI for documentation) including CharString decoding and especially 
rendering to bitmaps for type 3 font fallback.

In general pdfwrite uses its own routines to write and convert font types as
required, but it does not render any kind of font data, so if it is unable
to handle a font type it relies on the graphics library to render the glyph
to a bitmap, which is then stored in a type 3 font.

The FAPI code checks the device parameters to see if 'EmbedFontObjects' is 
true, and does not attempt to use the FAPI for fonts if it is. So firstly we
alter the device parameters in pdfwrite to set this to false.

The FAPI code was assuming that the text enumerator it received would always
be a 'show' enumerator, and extracted a pointer to the graphics state from it.
Of course if the device is pdfwrite then the text enumerator will instead be 
a pdf_text_enum. Modified the code to check the object type of the enumerator
and use the pointer to the imager state (checking it is a st_gs_state type)
if this is not a show enumerator. Also only update the 'cc' fields in the 
enumerator if this is a show enumerator.

Note that because the CharString and font validation is handled by the font
rendering engine, it may differ from the GS engine regarding the validity
of fonts.

[psi/zfapi.c base/gdevpdfp.c]

2009-04-24T01:06:32.141706Z Ralph Giles

Allocate the inferno device's color cube dynamically.

DETAILS:

The inferno device generates a color cube on device open, ostensibly
to speed up the palette mapping. Previously this was stored in a
global array, adding 16 or 32 KB to the constant memory footprint
of ghostscript.

Instead, this commit allocates the color cube dynamically, storing
a pointer to it in the inferno_device structure. A custom structure
descriptor is added, and propagated through the new prn_device
construction macros, so it can be traced by the garbage collector.

In this way, the memory is only used when the inferno device is active.

[base/gdevifno.c]

2009-04-24T01:06:30.215529Z Ralph Giles

Add a new prn_device_stype_body() construction macro.

Previously, all the printer device structures assumed there were no
additional pointer members in any subclass, and always installed the
st_device_printer structure descriptor. This may account for why so
few devices bother with point enumeration. Or perhaps it's the other
way around.

In any case, this commit adds two new construction macros for
filling in device structure templates: prn_device_stype_body and
prn_device_margins_stype_body. These take an additional argument,
the address of the subclass structure descriptor, after the device
name, and propagate it to the std_device_full_body_type macros.

[base/gdevprn.h]

2009-04-24T01:06:28.058835Z Ralph Giles

Comment out the prototype for a commented out function in the inferno driver.

Fixes a gcc warning.

[base/gdevifno.c]

2009-04-24T01:06:25.015250Z Ralph Giles

Add a prototype for init_p9color() in the inferno driver.

Fixes a warning on gcc.

[base/gdevifno.c]

2009-04-24T01:06:22.357332Z Ralph Giles

Remove trailing whitespace in the inferno driver.

[base/gdevifno.c]

2009-04-22T19:51:30.624349Z Michael Vrhel

Allow inline images in pdfwrite.

DETAILS:  

This had been disabled during the softmask branch work.  With the fix that Ray did to avoid having softmask images to be processed outside the 3X code with an extra softmask group, we can re-enable this.  From a test that Ken did we need the ability to do in-line to avoid creating large files in certain cases with pdfwrite.

[base/gdevpdfi.c]

2009-04-21T15:01:01.102780Z Ken Sharp

Initialise a couple of structure members to avoid a Coverity warning.

[base/gdevpdfg.c]

2009-04-21T07:55:30.518210Z Ken Sharp

Add a check for a NULL pointer before using it. In fact this should not be possible
but it silences another Coverity warning.

[base/gdevpdtc.c]

2009-04-20T19:35:15.102625Z Michael Vrhel

Add missing gscolorbuffer.c and gscolorbuffer.h that should have been in soft mask branch merge.  See previous commit message for differences and details.

[base/gscolorbuffer.c base/gscolorbuffer.h]

2009-04-20T19:16:24.907829Z Michael Vrhel

This is a merge of the smask_work branch into the trunk.  The merge fixes issues related to missing soft masks, improperly rendered soft masks and transparency group color spaces.  It addresses a number of bugs including 688728 689422 689512 689931 688601 689968 690958 690115 690157 and 690170.    

DETAILS:
This commit is a compilation of changes that occurred in the smask_work SVN branch.  That branch was created with rev 9134 on Oct 8 2008.  The final commit to that branch was with rev.  9665.  For extreme details on the changes in this commit, you can review the commit messages within that branch.
Soft masks:  The basic architecture for the soft mask remains in place; where by the soft mask is composed with the popping of the transparency group.  In performing soft mask operations, the current code pushes a soft mask, which creates a new buffer.  This buffer is then rendered into.  Once the soft mask drawing is completed, the soft mask is popped.  This operation moves the soft mask buffer into the mask buffer of the parent transparency group.  When that transparency group is popped, it should be composed with its parent layer, while being adjusted with the soft mask buffer values.  If there was never a transparency group that was popped following the soft mask, then the soft mask would not be applied.  The solution to this issue involved changes in pdfdraw.ps that forced the creation of a transparency group when one had not yet been created if a soft mask push was to occur.  When this extra group is popped, the soft mask will then be applied.  The PDF interpreter knows that a SMask exists in the ExtGstate when 'SoftMask' is not null. Since the ExtGState elements are part of the top dict, the 'begin' .. 'end'  part of the 'q' and 'Q' operators, respectively, take care of keeping the SoftMask current.  When a transparency group is executed, the SoftMask is set to null since the SMask saved in the pdf14 'maskbuf' element will be applied during the blending when the transparency group is popped.
Soft masks are now drawn in the specified group color space.  Previously, the soft mask was drawn in the target device color space and then the K channel for the CMYK case or the R channel for the RGB case were used as the soft mask luminance channel.   Now the mapping from the DeviceRGB or DeviceCMYK to a luminance component is performed as specified by the PDF specification.  If the color space is CIE based, the base device space is used.  This CIE case does not follow the PDF specification but does follow what occurs with Acrobat Reader.    Previously the code carried around the soft mask buffer as an RGB or CMYK buffer.  It is now represented by a gray buffer.
Transparency groups: Color space changes for transparency groups are now followed.  Previously, the target device color space was always used for blending.  Now the proper color space is used, with the exception of ICC and other CIE based spaces.  For those spaces the base device color space is used.  The ICC and CIE based spaces will be addressed when the ICC branch is merged.  Changing the current code to do forward and backward mappings with the ICC color spaces is beyond the work scope of the smask_work branch.    In the presence of nested transparency groups, the parent color space can be different than the child color space.  When the child is popped, its contents are now converted from the child’s color space to the parent’s color space.  Note that if the output device is a separation device, the transparency group color space is ignored and the blending is performed amongst the channels, which can be numerous if there are many spot colors.  Also note that for soft mask groups, the alternate tint transform is always used for spot colors.
To achieve these fixes, a number of changes besides those already mentioned above were required.  These include:
A dynamic update of the pdf14 device colorinfo value based upon the color space of the current transparency group.  This information is used often in deciding how to encode and decode the color data.  In the case of the clist writer and reader, the code often ends up forwarding certain operations to the target device in which case we no longer would have the colorinfo of the pdf14 device.  The solutions to this problem required the addition of a clist_color_info member value to the clist writer device.  This value is updated in the same manner that the pdf14 device will be updated during the clist reader phase thereby ensuring the proper color information is written and read.  Also required was the addition of a trans_device item to the imager state.  This was needed due to the fact that the clist writer forwards its fill path command to the target device.  In the shading code, if we have a DeviceN color space we eventually get back to pdf14_cmap functions, assuming we have a RGB or CMYK target device.  These cmap functions should make use of the clist device to map to the proper blending color space NOT the target device color space.  In the current code, the cmap functions can only see the target device and the imager state hence the solution to add trans_device to the imager state.  This is only used during clist writing and assigned during the clist writers PDF14 fill path at which point it is assigned the address of the clist writer device.  During the PDF14 cmap functions, if the trans_device is not NULL in the imager state we use that device's color mapping procs instead of the target device color mapping procs.  In this approach, we maintain access to the transparency group color space and its procedures through the imager state.  Finally, shading fills should NOT occur in the device color space when we are within a transparency group with a different color space.  To avoid this issue a boolean named has_transparency was added to the imager state.  Now if we find that we are in a transparency group during the shading fills, then the is_linear_color_applicable operation will return a false and the target color space is not used for blending.
To maintain the changing pdf14 color space information in the presence of nested groups, parent_color_info_procs was added to the already nested pdf14_buf_s where the new pdf14_parent_color_t contains the information related to the parent’s color space.   This handles the nesting of color information for the clist reader.  For the clist writer, pdf14buf is always NULL.  For this case, a pointer to a pdf14_parent_t was added to pdf14_device_s.  A stack was created and the color information is pushed on and popped off the stack as the transparency groups are pushed and popped during the clist writer phase.  
Changes were also required in pdfdraw.ps to handle the case when a transparency group does NOT define a color space.  In this case, the parent’s group color space (or the target device color space if we are at the first level) should be used.
In the presence of a monochrome target device, the previous code PDF14 device was still pushing an RGB buffer initially.  This is now changed and a monochrome buffer is created. 
There was much confusion in the code relating to the number of colors, separations, spot colors, and process colors.  This became clear when looking at a file that had over 100 colorants. GX_DEVICE_COLOR_MAX_COMPONENTS defines the max number of different colors that we currently encode.  This should include both the process colors and the spot colors.  Many parts of the code looked at these colors differently. Some portions of the code treated the number of spot colors and/or separations as having a range to GX_DEVICE_COLOR_MAX_COMPONENTS, while other parts include the process color AND the spot colors in that range.   The changes here ensure that GX_DEVICE_COLOR_MAX_COMPONENTS defines the max number for all process and spot colors.  
The current code did not recognize patterns with transparency in PDF.  Now, the presence of transparency in a pattern is detected.  If a transparency component is found, the pdf14 compositor is installed.    
Finally, pdf_draw.ps was modified so that when an image is encountered with a softmask (/doimagesmask) AND the output device is pdfwrite then we do avoid the DoImage that is used to fill the softmask buffer for the pdf14 device.  The pdfwrite device will obtain the maskdata as part of image3x.  Previously, the mask image was at times being placed in-line for the pdfwrite device during the DoImage that is associated with storing the softmask buffer in the pdf14device.  In the old flow, the SMask image was effectively being processed twice.

[psi/zcolor.c base/gxclimag.c base/gxpcmap.c base/gdevdevn.c psi/ztrans.c base/gsovrc.c base/gdevpdft.c base/gxblend1.c base/gxcie.h /trunk/gs base/gxshade6.c base/gxclpath.c base/gsptype1.c base/gsccolor.h base/gsptype1.h base/gsistate.c base/gximag3x.c base/gscspace.c base/gxclutil.c base/lib.mak base/gxistate.h base/gscspace.h Resource/Init/pdf_main.ps psi/int.mak Resource/Init/pdf_draw.ps psi/zpcolor.c base/gxdevcli.h Resource/Init/pdf_ops.ps base/gdevp14.c base/gxclrect.c base/gxclist.c base/gdevp14.h base/gdevtsep.c base/gxdcolor.c base/gstrans.c base/gxclist.h base/gstparam.h base/gxblend.c base/gstrans.h base/gdevpdfi.c base/gxblend.h]

2009-04-20T17:44:20.115590Z Till Kamppeter

Added "cdnj500" device to support HP DesignJet 500 (patch from Timur Maximov).

[contrib/gdevcd8.c contrib/contrib.mak base/configure.ac]

2009-04-20T15:59:07.741446Z Ken Sharp

Update revision 9658 to silence a second Coverity warning and potential dereference of
a NULL pointer. Should still be impossible and is definitely an error condition.

[base/gdevpdtc.c]

2009-04-20T15:54:38.325839Z Ken Sharp

Add a check to ensure a font pointer is valid before dereferencing it. This should 
always be the case, but its worth checking to avoid a crash and should silence a Coverity
warning.

[base/gdevpdtc.c]

2009-04-20T15:43:56.142408Z Ken Sharp

initialise first_visit in the gs_cpath_enum structure with a dummy value. This will be
overwritten when the enumerator actually starts, this is only to silence a warning
from Coverity.

[base/gxcpath.c]

2009-04-20T14:59:33.677002Z Ken Sharp

Initialise a member of a struct to silence a Coverity warning. The warning about use of
an uninitialised variable is actually bogus, the value is copied, but not otherwise used.

[base/gdevpdfg.c]

2009-04-20T14:31:15.938087Z Ken Sharp

Check the length of the 'binary mode' file access string before strcat'ing it, to 
prevent a potential (but not actual) buffer overflow. Silences a Coverity warning.

[base/gdevpdf.c]

2009-04-20T14:27:28.365570Z Ken Sharp

Reformat a conditional sprintf to silence a Coverity warning.

[base/gdevpdfu.c]

2009-04-20T12:38:51.604664Z Ken Sharp

Fix (colour) : Ensure /UseCIEColor sets for initial space correctly.

Details
bug #690432 "/UseCIEColor not working with default colour space"

The change to process colour and colour space in C instead of in PostScript overlooked 
code in gs_setpd.ps  which interacts badly with an optimisation.

The optimisation skips changing colour space if its the same as the current space. But
if /UseCIEColor has changed value we must not skip the change. This was achieved 
previously by only skipping the change if UseCIEColor was false, and setting the space
to something other than DeviceGray in gs_setpd.ps.

We take advantage of the same trickery by always setting the space to something other
than DeviceGray in gs_setpd.ps, in the knowledge that initgraphics will switch the 
current space back to DeviceGray. Because the spaces don't match we will process the
change, getting the correct result for UseCIEColor.

[Resource/Init/gs_setpd.ps]

2009-04-20T12:07:28.372687Z Alex Cherepanov

Some broken TrueType 1 fonts may declare more tables than they actualy have.
Use .peekstring instead of for readstring for resding the font directory to
avoid positioning non-seekable input stream past the 1st table data.
Bug 690423, customer 580.

[Resource/Init/gs_ttf.ps]

2009-04-20T06:56:10.039816Z Ken Sharp

Fix (pdfwrite) : Work aroung wrong numGlyphs.

DETAILS :
Patch and log supplied by Leonardo.

Bug 690047 "Incorrect cmap generated by pdfwrite".

If a source True Type font defines numGlyphs lesser then
the actually defined number of glyphs,
the old code writes an incorrect True Type header with
wrong offsets to subtables.

Since in nowadays the number of glyphs may be increased
due to font merging, we decided to write the extended subtables
with a bigger number of glyphs. See comments in code.
See enlarged_numGlyphs and related code portions.
The original numGlyphs is kept unchanged for easier debugging.

For an easier debugging added checks into psf_write_truetype_data
for comparing actual subtable offsets with ones written
into the True Type header. The new structure subtable_positions
works for that.

Also improved a printing in gs_type42_font_init.
The old code can print occasional garbage beyond the font name end.
 
ref# leo2077.

[base/gstype42.c base/gdevpsft.c]

2009-04-18T22:07:42.659183Z Ray Johnston

Improve the documentation related to the %rom% file system, searching when the
executable is built with COMPILE_INITS=1 (the current default on most platforms)
and the (mostly deprecated) older methods for compiling Type 1 fonts and Halftone
into threshold arrays.

[doc/Use.htm doc/Make.htm]

2009-04-17T08:16:45.715059Z Ken Sharp

Change #include of stdlib.h to use angle bracket form to avoid local path searches.

[base/gdevpdfj.c]

2009-04-17T00:32:26.343700Z Ralph Giles

Remove unnecessary includes of gserrors.h in the jpeg stream module.

Fixes two coverity warnings.

[base/lib.mak base/sjpegd.c base/sjpege.c]

2009-04-16T16:00:34.882286Z Ken Sharp

Fix (pdfwrite): Ignore missing side bearing/width in type 1 fonts.

Details:
Bug #689573: "glyphs with no (h)sbw cause error with pdfwrite".

Fonts which contain glyphs that do not begin with a sbw or hsbw operator are
technically invalid, but Acrobat Distiller, and other PostScript rips, ignore
the error and render the glyph with a side bearing and width of 0.

Modified the type 1 font code and the type 1 to type 2 (CFF) conversion code
to assume that such glyphs have a width and side bearing of 0 and are not a
cause for error.

[base/gstype1.c base/gxtype1.c base/gdevpsfx.c]

2009-04-15T20:08:27.661663Z Alex Cherepanov

Some broken Type 1 fonts define some of the attributes in the external scope
instead of defining them in the font dictionary. The patch tries to pick
the keys from the external scope and put them back to the font dictionary.
Bug 690418, customer 1110.

[Resource/Init/pdf_font.ps]

2009-04-15T19:18:47.976886Z Henry Stiles

On modern processors the c library's memset is usually faster than our
custom inline coding.  At least, using memset on recent windows, mac,
and linux platforms is appreciably faster for very long simple jobs
where erasing the page is significant relative to total job time.
Using the library's memcpy needs more investigation, it does not seem
to have significant impact on performance and also results in many
regressions which we haven't checked.

[base/gdevm24.c]

2009-04-15T06:50:51.933830Z Alex Cherepanov

Detect /Pages node without /Kids and bail out early. The code that tries
to determine the number of pages in the document takes such node as a /Page
node, which causes very long search for the last page. Bug 690389.

[Resource/Init/pdf_main.ps]

2009-04-14T04:56:06.103942Z Alex Cherepanov

Write color to the clip list even when it has no variable data, as in
[/Separation/None ...]. Fix a bug introduced by r. 8770 that causes rendering
of invisible objects with the last visible color. Bug 690395, customer 330.

[base/gxclpath.c]

2009-04-13T07:39:20.206752Z Ken Sharp

Silence some Coverity warnings (reasonable warnings, but not actually problems).

[base/gdevpdfj.c base/gdevpdtb.c base/gdevpdfe.c]

2009-04-13T07:31:25.084782Z Ken Sharp

Fix a typo in a comment.

[base/gdevpdtt.c]

2009-04-11T12:20:22.013355Z Alex Cherepanov

Repair broken PDF files created by "OKI HotKey" that misspell "endobj"
as "enbobj". Bug 690397.

[Resource/Init/pdf_base.ps]

2009-04-11T04:59:50.073474Z Ray Johnston

Fix for crash on 18-02B in clist code. The clist cbuf (on the stack) would
write past the end of the buffer are polluting the next varaible on the
stack (data_bits). Fixes 690399.

DETAILS:

This problem was introduced with r8712 (leonardo). The return value for
gx_dc_pattern_read_raster should be the number of bytes consumed, but in some
(rare) cases it would return 0, causing a later contamination of a byte past the
end of a buffer on the stack, polluting another value. The effect would be
dependent on the 'endian-ness' since only one byte was overwritten.

Also 'protection' for this condition was added in top_up_cbuf to prevent
future problems.

[base/gsptype1.c base/gxclrast.c]

2009-04-10T17:36:04.582061Z Ralph Giles

Remove the reference to needing to compile in pdfwrite, which is 
confusing to casual users. The pdfwrite device is part of all the
default builds.

[doc/Ps2pdf.htm]

2009-04-09T13:57:24.013138Z Ken Sharp

Fix (pdfwrite) : Omitted to write CIDToGIDMap when it was Identity, even if writing PDFA

Details
When writing CIDFontType2 fonts we should emit a CIDToGIDMap entry, which we do. However
if the map is the identity then we are permitted to omit it. Unless, of course, we are
writing a PDF/A compliant file, in which case we must write /Identity.

[base/gdevpdtw.c]

2009-04-09T08:44:23.319707Z Ken Sharp

Accidentally removed the prototype for pdf_document_metadata. Restored.

[base/gdevpdfg.h]

2009-04-09T08:37:55.568580Z Ken Sharp

Fix (pdfwrite): remove unused code for Font metadata.

Details:
Bug #690391: "PDF/A support generates invalid object references to font metadata".

The code for writing font metadata in PDF/A output was temporarily disabled
to fix problems with PDF/A output. 

It seems Acrobat cannot be persuaded to validate any file containing font
Metadata as PDF/A compliant, and Distiller cannot be persuaded to create
a PDF file containing font metadata.

The code has now been permanently removed.

[base/gdevpdfg.h base/gdevpdtb.c base/gdevpdfe.c]

2009-04-08T21:11:18.174166Z Ray Johnston

The massive 'DeviceN' commit (r2925) broke this. The correct b_w w_b
palette should not rely on color_info.polarity, but instead needs to
be determined from the value of color black. Inverted if black is not
0. Bug 690314 for customer #661.

DETAILS:

In page buffer mode, the 'palette' was set up during the first ht painting
operation from gdevmr1.c. This code was only used in clist mode when making
the 'buffer device' for the band.

[base/gdevmem.c]

2009-04-07T16:07:22.605043Z Ken Sharp

Removed the function pdf_color_space, which simply called pdf_color_space_named, with
two additional fixed parameters, NULL and 0.

Because these two function called each other Coverity seemed unable to deal with the
recursion and logged numerous STACK_USE errors. Also, its much easier to follow a single
function when debugging.

[base/gdevpdfk.c base/gdevpdfg.h base/gdevpdfb.c base/gdevpdfc.c base/gdevpdft.c base/gdevpdfv.c base/gdevpdfg.c base/gdevpdfi.c]

2009-04-07T10:20:02.752832Z Ken Sharp

Fix (ps2epsi): rounding problems calculating bbox.

Details:
Bug #688500 "ps2epsi produces too-narrow bounding box (2)".

Text and linework rendered at low resolution can differ by a few pixels from
that rendered at higher resolution because of serifs, miters etc. The ps2epsi 
script rendered the job at low resolution and used that both to calculate the 
bounding box, as well as for the epsi preview. This could lead to small errors 
if the job was re-rendered at a higher resolution

The new approach is to use the bbox device in Ghostscript to calculate a more
accurate bounding box. This has meant altering the scripts for all the
operating systems.

Also, the ps2epsi.bat file did not work correctly under Windows Vista. A
new 'cat.ps' file has been added to gs/lib. This uses the %infile% and
%outfile% environment variables and concatenates the two files together.
This only affects the Windows batch file.

[lib/ps2epsi lib/ps2epsi.ps lib/ps2epsi.cmd lib/cat.ps lib/ps2epsi.bat]

2009-04-06T15:30:47.928660Z Ken Sharp

Fix (pdfwrite): Incorrect handling of short images with subsampling.

Details:
bug #690350 "Conversion to pdf of a color pcl file generated by pjxl300 
gsview 4.9 driver"

The PCL file consists of a single large image covering the page. However,
the PCL interpreter calls 'process_zero_rows' (rtraster.c) which has the
side effect (sometimes at least) of closing the image and restarting it.

Pdfwrite already has code to handle a short image like this, it replaces
the image dictionary /Height value with the number of rows of data
actually received. However, if subsampling is enabled, this can be
incorrect, some of the rows of received data may have been discarded.

Altered pdf_end_image_binary to check if subsampling is taking place and
if it is to calculate the subsample factor and divide the number of rows
of data received by the subsample factor before storing as the new /Height.

[base/gdevpdfj.c]

2009-04-06T13:48:44.630941Z Alex Cherepanov

Skip Identity /TR function in soft mask dictionary on PostScript level instead
of passing {} to .begintransparencymaskgroup because ref_function() only
accepts function made of data and operator %execfunction. Bug 690379.

[Resource/Init/pdf_draw.ps]

2009-04-04T16:36:15.613476Z Alex Cherepanov

Revert initial /PolicyNotFount to 1. The previous value, 7, introduced by ESP
Ghostscript merger (rev. 8026) was non-standard and handled by Ghostscript
like 0. Fix '/undefined in --setpagedevice--' error in CUPS mode
(-dNOMEDIAATTRS) when setpagedevice request has unsupported keys. Bug 690376.

[Resource/Init/gs_setpd.ps]

2009-04-04T10:10:56.584771Z Ken Sharp

Enhancement (pdfwrite) : Allow pdfwrite to produce multiple copies of pages. New flag
        'DoNumCopies' added.

Details
Bug #690355 : "pdfwrite ignores the "#copies" setting in PostScript input"

The pdfwrite device follows the behaviour of Acrobat Distiller and ignores the /#copies
and /NumCopies settings in PostScript. This is at least partly because these can't be
expected to work properly with Destination annotations specifying a page as the
destination (eg Link or Outline annotations).

However CUPS (and potentially other PDF workflow applications) may have no way of
determining that application-produced PostScript requires multiple copies to be 
printed, after the file has been converted to PDF.

For the benefit of such applications a new flag 'DoNumCopies' has been added, if 
present then pdfwrite will duplicate each page in the output as many times as the 
/#copies or /NumCopies current setting.

There is currently no provision for reordering the pages, the duplicates follow the 
original immediately in page order.

[base/gdevpdfx.h base/gdevpdf.c base/gdevpdfp.c doc/Ps2pdf.htm base/gdevpdfu.c]

2009-03-31T15:21:50.984238Z Ken Sharp

Another case of the return value from pdf_attached_font_resource not being checked.

[base/gdevpdtt.c]

2009-03-31T15:17:52.100598Z Ken Sharp

Revision 9604 left an uninitialised variable being used. Moved usage beyond initialisation.

[psi/zfapi.c]

2009-03-31T14:59:18.448263Z Ken Sharp

Check the return value from pdf_attached_font_resource to silence a Coverity warning.

[base/gdevpdtt.c]

2009-03-31T14:52:09.178132Z Ken Sharp

Check the return value from pdf_open_docuemnt to fix a Coverity warning.

[base/gdevpdfu.c]

2009-03-31T14:41:29.436551Z Ken Sharp

Remove some unused code relating to embedding font metadata in PDF files.

[base/gdevpdfe.c]

2009-03-31T14:33:47.297209Z Ken Sharp

Remove unused variable 'glyph_index' from FAPI_do_char (gcc warning)

[psi/zfapi.c]

2009-03-31T14:30:14.712906Z Ken Sharp

Remove a bunch of unused headers to silence Coverity warnings.

[base/gdevpdfj.c psi/zfapi.c base/gdevpdfm.c base/gdevpdfo.c base/gdevpdtb.c base/gdevpdfp.c base/gdevpdtc.c base/gdevpdfr.c base/gdevpdte.c base/gdevpdtf.c base/gdevpdfu.c base/gdevpdti.c base/gdevpsfm.c base/gdevpdf.c base/gdevpsf2.c base/gdevps.c]

2009-03-31T14:01:20.321673Z Ken Sharp

Fix (pdfwrite): Incorrect handling of type 1 counter control hints.

Details:
bug #690349 "corrupt PDF is generated out of PostScript-file with asian fonts"

When converting type 1 outlines to type 2 outlines, we were not catering for
OtherSubrs 12 or 13 (counter control hints) in the first pass over the font.
These operators take a large number of arguments, and these were being left 
on the font operand stack. This quickly resulted in a stack overflow and an 
invalidfont error. We now remove the operands from the stack when we encounter 
them.

In addition, the code for writing CIDFontType0 fonts which called the conversion
routine was not checking the return value, and carried on trying to embed the font
anyway.

[base/gdevpsf2.c base/gdevpsfx.c]

2009-03-30T16:26:53.447317Z Ken Sharp

Fix (fonts): Potential dereference of NULL pointer.

Details
Flagged by Coverity, the FAPI code used op_show_find to get the text enumerator, but
did not check the return value, which can be NULL for a failure. Later the enumerator
is dereferenced, potentially causing a crash. This is actually almost certainly
impossible since this is a finish routine and the enumerator is known to have existed
previously, but its good to be safe.

[psi/zfapi.c]

2009-03-28T23:47:38.237280Z Alex Cherepanov

Recognize composite fonts and process descendant fonts according to
-dShowEmbeddedFonts flag. Bug 690363.

[toolbin/pdf_info.ps]

2009-03-28T21:03:25.515606Z Alex Cherepanov

Accept a string (instead of a name) as a possible /FontName value in
FontDescriptor. Recover broken PDF file generated by "MapForm". Bug 690365.

[Resource/Init/pdf_font.ps]

2009-03-28T19:32:04.398772Z Alex Cherepanov

Ignore /XObject attribute if it's not a dictionary. Recover broken
PDF file generated by "Allegro Design Publisher". Bug 690364, customer 870.

[Resource/Init/pdf_main.ps]

2009-03-26T13:46:29.711009Z Ken Sharp

Fix (pdfwrite) : NeverEmbed/AlwaysEmbed not working properly.

DETAILS :

Patch and Log supplied by Leonardo.

Bug 689610 "Possible /NeverEmbed vs /AlwaysEmbed problem"
The root of the problem is that (1) empty arrays did not work,
and (2) existing values of the parameters (before setdistillerparams)
were not properly accounted for in setdistillerparams.
 

In the old code, PS and C parts of "embed" parameters implementation
are inconsistent each to another and to the documentation. Replacing both with the
right logic defined in the Adobe Distiller Parameters specification.
The comment in gdevpsdp.c line 81 is kept as the basic interface definition.

Note: in the old code param_read_embed_array could not distinguish empty array from
no array,  but it is important for the Adobe logic.
Also psdf_put_embed_param parameters did not correspond  to the documentation in
gdevpsdp.c ln 81.

ref# leo2073.

[Resource/Init/gs_pdfwr.ps base/gdevpsdp.c]

2009-03-25T13:00:06.154261Z Till Kamppeter

Fixes in the "cups" (CUPS Raster) output device driver:

Fixed segmentation fault due to missing definition of get_color_comp_index() function. Used dummy function gx_error_get_color_comp_index() now (bug 690338).

Updated some (currently not used) functions to the current internal API of Ghostscript.

Made pre-initialization of device data structure complete.

[cups/gdevcups.c]

2009-03-25T05:14:39.001280Z Alex Cherepanov

Don't apply mapped transfer function to the uninitialised buffer. Old code
had no effect other than causing Valgrind warnings. Bug 688908.

[base/gsht1.c]

2009-03-25T05:01:11.445938Z Alex Cherepanov

When CCITTEncode'd stream is not properly terminated and used as an embedded
image, the filter may consume 'E' from 'EI'. Change PDF interpreter to accept
'I' as a synonym to 'EI'. Bug 690300, customer 353.

[Resource/Init/pdf_draw.ps]

2009-03-24T17:07:50.052635Z Ken Sharp

Remove some #ifdef code and some C++ style comments from the FreeType bridge code.

[psi/fapi_ft.c]

2009-03-24T15:55:25.161400Z Ken Sharp

Fix (fonts) : Sheared/rotated text incorrect with FreeType bridge

Details
The FreeType code uses a different order for the transformation matrix elements, we
were sending the matrix in PostScript order, resulting in incorrect transformations.

[psi/fapi_ft.c]

2009-03-23T15:19:13.060013Z Ken Sharp

Fix (pdfwrite) : Wrong page orientation with italic font.

DETAILS :

Patch and log message submitted by Leonardo.

Bug 689574 "italic/oblique fonts produce incorrect page orientation". 

Replacing text orientation recognition trick with a right math.

ref# leo2072.

[base/gdevpdtt.c]

2009-03-23T14:14:38.656422Z Ken Sharp

Fix (fonts) : Coverity warning

Details:
Move a NULL pointer check so that it is performed before dereferencing the pointer.
Warning flagged by Coverity.

[psi/zfapi.c]

2009-03-23T13:48:49.969966Z Ken Sharp

Fix (pdfwrite) : Skip OpenType tables EBDT, EBLC, EBSC.

DETAILS :

Patch and log message submitted by Leonardo.

This fixes the large size of the PDF output reported in
Bug 689209 "ps2pdf doesn't subset embedded bitmaps".
The patch skips Open Type tables that are not required by
the PDF specification.

A better fix would be subsetting EBDT, EBLC, EBSC
(probably what the user wants), but we have not enough
examples for testing all possible formats of those tables.
Also it will be necessary to compact the glyph index space
and re-index subglyphs, otherwise the subclassed EBLC
is still too big. In general subsetting TrueType fonts is still
a future goal.

[base/gdevpsft.c]

2009-03-23T09:40:03.808902Z Ken Sharp

Fix (fonts): Allow copying TT descandants of CIDFonts with no name table.

Details:
bug #690348 "Error "/invalidfont" when generating PDF"

The PDF file for this contains an embedded TrueType font, configured as a CIDFont, and
the TT name table is empty (not missing, but empty). This is probably technically
illegal.

However, we don't actually require the name table, or other font information, when
copying these fonts for pdfwrite, so we simply ignore this error in this case.

[base/gxfcopy.c]

2009-03-22T04:43:07.001485Z Alex Cherepanov

Initialize Jbig2TextRegionParams.sbrat even when it is not used in
calculations because it's included in error messages causing Valgrind
warnings.

[jbig2dec/jbig2_text.c]

2009-03-20T08:26:50.704630Z Ken Sharp

Fix (pswrite) : extra '%' output in DSC comment

Details:
bug #690347 "pswrite device generates %%%%BeginPageSetup"

Revision 9396 moved the emission of the %%PageBoundingBox comment, but due to an
oversight caused the %%BeginPageSetup comment to be emitted with too may '%' characters.

[base/gdevpsu.c]

2009-03-19T21:19:31.945883Z Alex Cherepanov

Allocate a file name string returned by .tempfile independently of the
file object. Don't free the file name string when the file is closed.
Fix a Valgrind warning and potential SEGV.

[psi/zfile.c]

2009-03-19T17:01:34.362845Z Ken Sharp

Fix (fonts): Uninitialised variables in FreeType bridge.

Details:
bug #690344 "FreeType bridge produces lots of 'clipping glyph' warnings"

The FreeType bridge code failed to initialise some member variables of a structure when
retrieving glyph metrics, leading to spurious warnings.

[psi/fapi_ft.c]

2009-03-19T16:40:12.949694Z Ken Sharp

Fix (fonts): PaintType 2 fonts not working.

Details:
bug #689826 "FT_BRIDGE crashes with CID fonts"

The initial problem is that a required table, TT_cmap, was NULL, and was not tested
by the CID decoding module before attempting to use it.

Further investigation revealed a fair number of problems surrounding this are. The 
problems stem from the use of a native TrueType font on disk to replace a CIDFont (not 
from an actual CIDFont as the summary suggests). When using a CIDFont the character
code is mapped to a CID using the CMap and the CID is directly used to extract the 
glyph program from the font's CharStrings dictionary.

With a TrueType font that is not sufficient, TrueType fonts use Glyph IDs (GID) and
have a completely different method of mapping the encodings. We attempt to handle this
by converting the CID to a Unicode value, and then use the TT Unicode CMAP subtable to
convert the Unicode value to a GID.

With GS' own font handling this works, because we extract the CMAP subtable and carry
it around in the font. WHen using FreeType this is not done, and so the conversion
fails.

Modified the FAPI interface to create a new method 'check_cmap_for_glyph' which will
allow us to interrogate the TT CMAP subtable from the FAPI server. Copied sections of
CID decoding from zcid.c to zfapi.c in order to perform the same checks as our own 
code and use the correct Unicode value.

[psi/fapi_ft.c psi/zfapi.c psi/ifapi.h psi/fapiufst.c]

2009-03-19T16:10:19.044766Z Ken Sharp

Fix (fonts): PaintType 2 fonts not working.

Details:
bug #690343 "Fonts with PaintType 2 (outline) not working with FreeType bridge"

The FAPI code seems to assume that it will always get an 'e_limitcheck' error when no
raster is available. This seems to be true for glyphs too large to cache, but is not
the case when the font is intended to be an outline. In this case there is no raster, 
but the error return is not e_limitcheck.

Rather than rely on an error value, modified the code so that if the font has a 
non-zero PainType, we assume that we only have an outline.

[psi/zfapi.c]

2009-03-19T15:59:50.732428Z Ken Sharp

Fix (fonts): Crash caused by missing tests.

Details:
bug #690342 "GPF/segment violation using FreeType bridge"

When using a TrueType font to substitute for a CIDFont, there is no BuildCHar, and so
trying to resolve the name will fail, resulting in a GPF. Fixed by testing the name
objects before attempting to resolve them.

[psi/zfapi.c]

2009-03-19T01:48:02.632278Z Henry Stiles

Fix 689822, the previous code did not free the palette associated with
an indexed color space to remain backward compatible wih pcl and
pclxl.  The previous setup, before 8928, allowed the clients to manage
the table for memory.  The commented out code in this module was a
workaround until we fixed the pcl clients.

[base/gscolor2.c]

2009-03-18T22:58:18.105967Z Ralph Giles

Backslash-escape nested parentheses in ps strings.

This isn't necessary with the gs scanner, but is considered good practice.
Thanks to Ray Johnston for raising the issue.

[Resource/Init/pdf_draw.ps]

2009-03-18T21:58:18.821466Z Ralph Giles

Correct diction in unbalanced q/Q warnings.

[Resource/Init/pdf_ops.ps Resource/Init/pdf_main.ps Resource/Init/pdf_draw.ps]

2009-03-15T22:42:53.413236Z Alex Cherepanov

Add hagaki (Japanese postcard) paper size to the list of known paper sizes
because this format is widely used in Japan and popular PAPERSIZE option
takes a paper name. Bug 690213.

[doc/Use.htm Resource/Init/gs_statd.ps]

2009-03-14T05:44:00.168304Z Ray Johnston

Fix chunk_resize_object to retain the old data and add gs_debug['A'] debug
printing.

[base/gsmchunk.c]

2009-03-13T00:19:17.919125Z Ralph Giles

Correct some comment typos in the icclib wrapper.

Also removes trailing whitespace.

[base/gsicc.c]

2009-03-12T19:43:29.615649Z Ray Johnston

Fix Segfault in the 'resize_object' of the chunk memory wrapper.

DETAILS:

A typical (unfortunately) instance of using (part of) an object after
it has been freed.

[base/gsmchunk.c]

2009-03-12T13:32:23.551227Z Alex Cherepanov

Remove code that has no effect other than moving uninitialized data around
and causing Coverity warning.

[psi/iutil2.c]

2009-03-12T00:18:03.727459Z Marcos H. Woehrmann

Fixed typo introduced in r9545.

[base/gdevp14.c]

2009-03-11T22:00:55.007444Z Ray Johnston

Set the log_op (ROP) to a straightforward value when doing the pdf14 put_image
ignoring the input imager state log_op. Bug 690321.

DETAILS:

The rev 8170 alludes to doing something to prevent a similar problem (bug
689186: see DETAILS comment #2 in the log message), but this was NOT the
correct solution. When writing the transparency buffer to the target device
in the pdf14 POP_DEVICE using the "put_image" proc, we really need to use
a ROP that simply allows us to copy the image in 'normal' mode i.e. use
rop3_default.

The state of the low bits of the clist_playback_band imager_state.log_op is
rather arbitrary at the end of the band and not relevant to the put_image
operation.

[base/gdevp14.c]

2009-03-11T13:46:33.591266Z Alex Cherepanov

Move a variable declaration to the outer block to prevent out-of-scope access
and a corresponding Coverity warning.

[psi/idict.c]

2009-03-11T12:51:21.059563Z Alex Cherepanov

Propagate error code from gs_path_enum_next() upstream in operator
.getpath . Fix a Coverity warning.

[psi/zupath.c]

2009-03-10T00:07:03.756709Z Ralph Giles

Add the soclean and debugclean targets to distclean. Bug 690263.

[base/Makefile.in]

2009-03-07T22:59:15.942227Z Alex Cherepanov

Increase operand stack to 100000 elements and change stack overflow handling.

DETAILS:
Following Adobe implementation, copy only a few top elements of the stack
to the corresponding element of the $error dictionary when the stack
overflows. Adobe copies up to 500 top elements, we copy up to 65535. This
feature enables Ghostscript to have maximum stack sizes larger than 65535.
The maximum operand stack size is set to 100000 to match Adobe interpreters.
The large stack size is needed for some PDF files that construct large
dictionaries using << ... >> operators. Bug 690307, customer 850.

[Resource/Init/gs_init.ps psi/interp.c]

2009-03-07T21:46:16.367445Z Till Kamppeter

Let pdftoraster CUPS filter not be build with CUPS < 1.2 and allow suppressing build of pdftoraster via command line option (needed for Mac OS X).

[cups/cups.mak base/Makefile.in base/configure.ac]

2009-03-05T09:56:07.987614Z Ralph Giles

Look for the 'cmap' table in the font dictionary and use it when mapping
a cid to a character code when using the FAPI bridge.

This replaces a segfault with an invalid font error. Bug 689826.

Details:

This clause in FAPI_do_char() was explicitly calling
cid_to_TT_charcode() with a NULL TT_cmap argument, which that function
dereferenced, causing a segfault. As far as Ken and I can tell, that
function can't do anything useful without the cmap table from the
underlying font, so it makes the most sense the resolve the segfault
this way.

However, the ps library code doesn't set this key in the font
dictionary, so for now this just replaces the segfault with an
/invalidfont in --.FAPIBuildGlyph-- error. We could continue
silently by ignoring the mapping if the cmap isn't available down
in TT_char_code_from_CID_no_subst() in which case that font just
would not render as part of the document. We expect to fix this on
the postscript side, so I felt this was a better course for now.

[psi/zfapi.c]

2009-03-04T13:27:07.376818Z Ken Sharp

Fix the FreeType bridge code for outlines (result of charpath). 

The previous code assumed that co-ordinates returned by FT were in a 16.16 fixed
precision format, whereas they are actually in a 26.6 form. Rescale the 26.6 to 16.16
before returning to FAPI so that the conversion into GS co-ordinates works correctly.

[psi/fapi_ft.c]

2009-03-03T16:23:24.892806Z Ken Sharp

Fix (colour): Faulty error handling

Details:
bug #690312 "gs stalls, never returns on attached figure"

The job causes the 'base' (Gray, RGB, CMYK) colour code to be executed with a completely
full stack, which causes a stackoverflow because this routine needs to push the colour
space name onto the operand stack.

However, the operand stack wasn't being checked until after the continuation procedure 
had been pushed onto the execution stack, so after the error handling, we returned to
the continuation procedure, but without an appropriate operand stack. This caused a
loop to run without bounds.

Fixed by checking the operand stack beforesetting up the execution stack for the
continuation and aborting if it is full. Desk checking revealed another potential case
of the same problem, fixed in the same patch.

[psi/zcolor.c]

2009-03-02T19:54:01.945423Z Ray Johnston

Add mention of 'vewrgb.ps'. See the source for usage.

[doc/Psfiles.htm]

2009-03-02T19:47:28.992085Z Ralph Giles

Update copyright header and file metadata for viewrgb.ps.

[lib/viewrgb.ps]

2009-03-02T18:45:32.781041Z Ray Johnston

Add support for BITS=2, remove left over debugging messages. Note that
this has only been tested for BITS=1, BITS=2, BITS=8. BITS=4 is not
supported (Indexed color space is limited to palette of 4096 colors).

[lib/viewrgb.ps]

2009-03-02T17:44:22.371407Z Ray Johnston

Add a utility to view bitrgb files (derived from viewcmyk.ps)

[lib/viewrgb.ps]

2009-03-02T06:13:02.641888Z Alex Cherepanov

When /JBIG2Decode filter takes /.jbig2globalctx parameter and retains a
pointer to it, the filter must not be allocated in global memory if the
parameter is local. Bug 690308.

[psi/zfjbig2.c]

2009-02-28T00:03:41.220730Z Ralph Giles

Remove a continued line in a makefile variable.

Solaris 'make' doesn't like this. Bug 690311.

[psi/psromfs.mak]

2009-02-26T04:07:56.132242Z Ray Johnston

Fix for access to potentially uninitialized memory in gx_hld_get_gstate_ptr
when called with an imager_state that is on the stack (as it is when this
is called from the clist). Valgrind spotted this. See coment #5 in Bug
690299.

DETAILS:

The previous method of checking the object type depended on access BEFORE
the pointer. This was (margnially) OK for allocated objects, but NOT OK
when the structure is stack based.

[base/gsstate.c base/gxclist.c base/gxistate.h base/gdevvec.c base/gxhldevc.c]

2009-02-26T03:51:58.114906Z Ray Johnston

Add some documentation on a useful debugging PS operator and it's C code hook.

[doc/Language.htm]

2009-02-23T19:17:44.665816Z Marcos H. Woehrmann


Change the maxval value for pkm and pkmraw files from 1 to 255.

Details:

Some programs (notably Adobe Photoshop through at least CS4) do not
correctly read PPM files that have a maxval!=255, displaying them
as all black (technically not entirely black, but with pixels set
to 0 or 1).  

This change causes Ghostscript to set maxval to 255 and scale the
output bitmap to 0..255.  Because PBM doesn't pack pixels in the
PPM raw format the output file size will not change; PPM files will
up to double in size (previously each pixel used 6 bytes, "1 1 1 ",
now each pixel uses up to 12 bytes, "255 255 255 ").

[base/gdevpbm.c]

2009-02-23T11:35:26.753646Z Ken Sharp

Fix (ps2write)

Details
The Debug flag for the new 'center pages' switch was incorrectly spelled as PDFR_DEBUG1 instead of PDFR_DEBUG.

[Resource/Init/opdfread.ps]

2009-02-21T20:59:34.903436Z Ralph Giles

Update the msvc build of the freetype bridge for the new link scheme.

This commmit fixes some errors in the earlier untested update. In addition, the earlier FT_LIB (singular) makefile variable is resurrected for the msvc build only. It is necessary because the freetype project file embeds the release number of build variant in the library filename. If FT_LIB is not set it defaults to the multi-threaded debug build of the 2.3.8 release. Obviously this should be changed when building a binary for release, or against a different version of the freetype library.

[base/winlib.mak doc/Make.htm]

2009-02-20T23:17:14.675067Z Ralph Giles

Replace the hardcoded reference to the FreeType library subpaths with a
more direct specification of compile and link flags.

The msvc build is untested.

Details:

Previously, the top level makefile was supposed to define a path to the
freetype source directory, along with the platform-specific library
filename extension. From this the ft bridge makefile section generated
specific references for include paths and the library. This only worked
with a specific version of the library.

This commit removes the variable for passing the library extension,
and relies on the top-level makefile to provide the link commands,
passed in the FT_LIBS variable. Such link commands are generally
platform-specific anyway, so FT_LIB_EXT was redundant. Likewise,
the include path specifiers must be part of the FT_CFLAGS variable.

Previously, FT_LIBS was called FT_LIB. We generally use _LIB for a
single library name. Having the plural LIBS is more common for an
actual link command, which may include flags and other libraries
which are dependencies. This variable is used in the second way.

The build documentation is also updated to reflect the new scheme,
and mention the incremental font support, which seems to be disabled
in most builds.

[base/winlib.mak doc/Make.htm psi/int.mak]

2009-02-20T23:17:10.859552Z Ralph Giles

Add some missing dependencies to the interpreter makefile.

Strangely, these don't help ensure arch.h is built before write_t2.c.

[psi/int.mak]

2009-02-20T23:17:08.595733Z Ralph Giles

Replace 'Free Type' with 'FreeType' in the build documentation.

[doc/Make.htm]

2009-02-20T23:17:05.547619Z Ralph Giles

Update freetype includes to the currently recommended scheme.

Details:

In freetype2, the recommended method of including the headers is to
include <ft2build.h>, depending on a -I line on the compiler's command
line to select the particular location for this, usually something like
$(INCLUDE_DIR)/freetype/

This header defines macros which expand to includes for particular
features, depending on how the particular freetype instance being
built is configured.

This means that we can't have explicit dependencies on the headers we
use, so those references are also removed. This has a side effect of
making it much easier to link with a system version of freetype.

However, the fapi_ft bridge requires freetype's incremental fonts
feature, which seems not to be enabled by default.

[psi/fapi_ft.c psi/int.mak]

2009-02-20T19:10:04.104225Z Alex Cherepanov

Check that gs_init.ps can be found at $(GenericResourceDir)Init/gs_init.ps
Issue a warning if this file cannot be found. Bug 690289.

[Resource/Init/gs_res.ps]

2009-02-19T18:53:21.845051Z Ralph Giles

Update our internal copy of the libpng source to the 1.2.35 release.

[libpng]

2009-02-19T18:52:24.164375Z Ralph Giles

Move the libpng source out of the way for an upgrade.

[libpng]

2009-02-19T17:13:36.155519Z Ray Johnston

Fix for segfault reported as bug 690051 caused by the assumption that the architecture
had 32-bit integers. Thanks to Wendy for the patch.

[base/gdevsgi.h base/gdevsgi.c]

2009-02-17T20:40:38.935981Z Alex Cherepanov

Remove obsolete information from Use.htm. Ghostscript now accepts PDF from
standard input and, since rev. 610 flushpage occurs even with -dNOPROMPT .

[doc/Use.htm]

2009-02-16T20:00:17.223054Z Ralph Giles

Set native eol-style on the jasper library source. Bug 690292.

[jasper/src/libjasper/include/jasper/jas_types.h jasper/src/libjasper/jpc/jpc_cs.c jasper/src/libjasper/mif/mif_cod.h jasper/src/libjasper/pgx/pgx_enc.c jasper/src/libjasper/bmp/bmp_cod.c jasper/src/libjasper/jpc/jpc_cs.h jasper/src/libjasper/ras/ras_dec.c jasper/src/libjasper/pgx/pgx_enc.h jasper/src/libjasper/bmp/bmp_cod.h jasper/src/libjasper/base/jas_version.c jasper/src/libjasper/jpc/jpc_qmfb.c jasper/src/libjasper/ras/ras_cod.c jasper/src/libjasper/base/jas_iccdata.c jasper/src/libjasper/base/jas_seq.c jasper/src/libjasper/jpg/jpg_val.c jasper/src/libjasper/jpc/jpc_qmfb.h jasper/src/libjasper/jpc/jpc_fix.h jasper/src/libjasper/jpc/jpc_tagtree.c jasper/src/libjasper/ras/ras_cod.h jasper/src/libjasper/pgx/pgx_dec.c jasper/src/libjasper/jpc/jpc_tagtree.h jasper/src/libjasper/base/jas_getopt.c jasper/src/libjasper/jpc/jpc_mqenc.c jasper/src/libjasper/include/jasper/jas_getopt.h jasper/src/libjasper/jpg/jpg_dummy.c jasper/src/libjasper/jpc/jpc_bs.c jasper/src/libjasper/include/jasper/jas_init.h jasper/src/libjasper/jpc/jpc_enc.c jasper/src/libjasper/base/jas_string.c jasper/src/libjasper/base/jas_malloc.c jasper/src/libjasper/include/jasper/jas_string.h jasper/src/libjasper/include/jasper/jas_malloc.h jasper/src/libjasper/jpc/jpc_mqenc.h jasper/src/libjasper/pgx/pgx_cod.c jasper/src/libjasper/jpc/jpc_bs.h jasper/src/libjasper/jpc/jpc_t1enc.c jasper/src/libjasper/jpc/jpc_enc.h jasper/src/libjasper/jpg/jpg_enc.c jasper/src/libjasper/pgx/pgx_cod.h jasper/src/libjasper/jpc/jpc_t1enc.h jasper/src/libjasper/jpg/jpg_enc.h jasper/src/libjasper/include/jasper/jas_version.h jasper/src/libjasper/include/jasper/jas_seq.h jasper/src/libjasper/jpc/jpc_mqdec.c jasper/src/libjasper/include/jasper/jas_math.h jasper/src/libjasper/base/jas_stream.c jasper/src/libjasper/jpc/jpc_flt.h jasper/src/libjasper/jpc/jpc_dec.c jasper/src/libjasper/include/jasper/jas_stream.h jasper/src/libjasper/base/jas_icc.c jasper/src/libjasper/jpc/jpc_mqdec.h jasper/src/libjasper/jpc/jpc_t1dec.c jasper/src/libjasper/jpc/jpc_dec.h jasper/src/libjasper/pnm/pnm_enc.c jasper/src/libjasper/jpg/jpg_dec.c jasper/src/libjasper/jp2/jp2_enc.c jasper/src/libjasper/jpc/jpc_mqcod.c jasper/src/libjasper/jpc/jpc_t1dec.h jasper/src/libjasper/pnm/pnm_enc.h jasper/src/libjasper/base/jas_tvp.c jasper/src/libjasper/jpc/jpc_mqcod.h jasper/src/libjasper/jpc/jpc_t1cod.c jasper/src/libjasper/jpc/jpc_cod.h jasper/src/libjasper/jpc/jpc_t2enc.c jasper/src/libjasper/jpc/jpc_util.c jasper/src/libjasper/jpc/jpc_t1cod.h jasper/src/libjasper/jpc/jpc_t2enc.h jasper/src/libjasper/jpc/jpc_util.h jasper/src/libjasper/jpg/jpg_cod.h jasper/src/libjasper/jpc/jpc_mct.c jasper/src/libjasper/include/jasper/jas_image.h jasper/src/libjasper/include/jasper/jas_debug.h jasper/src/libjasper/pnm/pnm_dec.c jasper/src/libjasper/jpc/jpc_mct.h jasper/src/libjasper/include/jasper/jas_config_win32.h jasper/src/libjasper/jpc/jpc_math.c jasper/src/libjasper/jp2/jp2_dec.c jasper/src/libjasper/jpg/jpg_jpeglib.h jasper/src/libjasper/jpc/jpc_math.h jasper/src/libjasper/jp2/jp2_dec.h jasper/src/libjasper/base/jas_cm.c jasper/src/libjasper/include/jasper/jas_icc.h jasper/src/libjasper/include/jasper/jas_cm.h jasper/src/libjasper/jpc/jpc_t2dec.c jasper/src/libjasper/pnm/pnm_cod.c jasper/src/libjasper/base/jas_init.c jasper/src/libjasper/jp2/jp2_cod.c jasper/src/libjasper/include/jasper/jas_config.h jasper/src/libjasper/jpc/jpc_t2dec.h jasper/src/libjasper/pnm/pnm_cod.h jasper/src/libjasper/jp2/jp2_cod.h jasper/src/libjasper/bmp/bmp_enc.c jasper/src/libjasper/include/jasper/jas_tvp.h jasper/src/libjasper/jpc/jpc_t2cod.c jasper/src/libjasper/bmp/bmp_enc.h jasper/src/libjasper/jpc/jpc_t2cod.h jasper/src/libjasper/base/jas_image.c jasper/src/libjasper/base/jas_debug.c jasper/src/libjasper/include/jasper/jas_fix.h jasper/src/libjasper/ras/ras_enc.c jasper/src/libjasper/include/jasper/jasper.h jasper/src/libjasper/ras/ras_enc.h jasper/src/libjasper/jpc/jpc_tsfb.c jasper/src/libjasper/bmp/bmp_dec.c jasper/src/libjasper/jpc/jpc_tsfb.h jasper/src/libjasper/mif/mif_cod.c]

2009-02-16T19:58:09.175955Z Ralph Giles

Convert a jasper source file to unix line endings. Bug 690292.

[jasper/src/libjasper/jpc/jpc_qmfb.c]

2009-02-14T00:46:58.521562Z Ralph Giles

Don't strip dynamic driver modules when linking them.

This is better done at the install or packaging stages if space is a 
concern.

Also, propagate LDFLAGS to the link command line. This may or may not be 
what you want, but is more likely to help helpful than not.

After a patch by Kevin Pyle. Bug 690288. Originally Gentoo bug 215913.

[base/devs.mak]

2009-02-13T09:22:34.492616Z Ken Sharp

Fix (TrueType interpreter): Ignore a 'faulty font' condition

Details:
bug #689760 "Missing characters: Failed to interpret TT instructions"

The font in question is technically invalid. The problem occurs in function 1 of the
FPGM table:

	00069: PUSHB[2]              0    21 
	00072: JMPR       
	00073: ABS        
	00074: DUP        
	00075: ROLL       
	00076: RCVT       
	00077: DUP        
	00078: ROLL       
	00079: SUB        
	00080: ABS        
	00081: PUSHB[1]             50 
	00083: LT         
	00084: IF         
	00085: SWAP       
	00086: EIF        
	00087: POP        
	00088: ROUND[Black] 
	00089: PUSHB[1]             64 
	00091: MAX        
	00092: ENDF       

The JMPR (jump relative) instruction is intended to resume execution at the ENDF
instruction, but the number of bytes is miscounted, falling of the end of the function.
I suspect some TT interpreters catch this by spotting the fact that the IP is past the
end of the function.

We don't seem to be able to check if we've fallen off a function, because we don't store
function lengths, so this code works around the problem by checking the opcode after we
apply the JMPR but befopre resuming execution. If the opcode is *not* ENDF, but the 
preceding opcode was, assume that we have a counting problem, and move the IP back one
instruction.

Also applied the same work around to JROT and JROF instructions.

[base/ttinterp.c]

2009-02-12T21:07:53.759360Z Alex Cherepanov

Limit the length of a buffer string for CCITTFaxEncode compression in
Type 32 font to 65535. Old code used worst case estimation (5x expansion)
that exceeded maximum string size for large glyphs. Bug 690286.

[Resource/Init/gs_typ32.ps]

2009-02-11T20:35:13.542448Z Henry Stiles

Revert the last change which was completely wrong.  The system does
not support depth 3 as Ray pointed out.  As it turns out the depth is
corrected so there is no difference in output between the two
configurations.

[base/gdevbit.c]

2009-02-11T19:37:42.026795Z Henry Stiles

The default bitrgb device prototype specified a depth of 4 instead of
3.  This change will break all regression tests that use bitrgb
(hopefully).

[base/gdevbit.c]

2009-02-11T15:41:25.950909Z Ken Sharp

Fix (TrueType interpreter): Ignore a 'faulty font' error

Details:
bug #689471 "Error in Processing Type42 Charstrings"

The font in question is missing a glyph in the GLYF table, which is used 
as a component by a composite glyph. A later instruction then tries to access 
a non-existent point (probably defined in the missing component), which causes
an error.

FreeType 1 and 2 both ignore this error unless pedantic_hinting is set, other
TrueType interpreters behave similarly.

Modified the code in Ins_MIAP to ignore errors of this type, and continue.

[base/ttinterp.c]

2009-02-10T19:55:40.527955Z Ralph Giles

Move some components of the freetype bridge to the interpreter source 
directory.

These should have been put there in the source tree reorganization.

[base/write_t1.c base/wrfont.c base/write_t2.c psi/write_t1.c psi/wrfont.c psi/write_t2.c base/write_t1.h base/wrfont.h base/write_t2.h psi/write_t1.h psi/wrfont.h psi/write_t2.h]

2009-02-10T17:38:02.642910Z Marcos H. Woehrmann

Make the font cache determinstic.

Details:

Previously the font cache order was based on the value of the pair
pointer.  On some (most?) computers this resulted in the cache being
filled in a deterministic way but not on the the cluster used for
regression testing.  The cache fill order is important because it
affects which entries are removed when the cache is full which
matters because re-rendered glyphs can differ from the cached
rendering (a separate bug, 690281, has been opened for this issue).

Fixes bugs 690232 and 690233.

[base/gxfcache.h base/gsfont.c base/gxccman.c]

2009-02-10T11:56:30.899368Z Ken Sharp

Fix (graphics library): Rotated/skewed text not anti-aliased

Details:
bug #688032 "Rotated text is not antialiased."

A specific test in 'show_set_scale' disabled oversampling of text if it was
rotated or skewed. Testing indicates that anti-aliasing does provide some improvement 
in text, even when it is rotated or skewed, so this test has been removed.

Also removed the compile-time option to not cache rotated glyphs by removing the
#define CACHE_ROTATED_CHARS and the test against it in show_state_setup. This allowed
the removal of the routine 'is_matrix_good_for_caching'.

[base/gxchar.c]

2009-02-10T02:17:30.702347Z Ralph Giles

Propagate LDFLAGS when linking the pdftoraster utility. Bug 690279.

Also, move the cups link libraries to the end of the command line
for tools that require dependency order.

[cups/cups.mak]

2009-02-09T22:18:20.864249Z Ralph Giles

Protect some printf-like calls in the pcl3 output device from spurious
format specifiers. This eliminates a security-related gcc warning.

Details:

I believe the previous code was actually safe. However, this approach is
more robust. If any of the string buffers passed to errprintf() happened
to contain a format specifier (like %d) an out of bounds stack reference
could result.

This allows the default build to complete with -Werror=format-security,
which the Mandriva linux distribution is reported to be using.

[contrib/pcl3/eprn/gdeveprn.c contrib/pcl3/src/gdevpcl3.c]

2009-02-09T22:18:18.594295Z Ralph Giles

Have gs_throw_code() print the corresponding error string literally to
avoid interpretation of spurious format specifiers. This removes a
security-related gcc warning.

Details:

The previous code was safe. gs_(re)throw_code() called gs_errstr() to
convert the code to a printable string, and these contain no format
specifiers. However, the new method is more robust, and allows
compilation with -Werror=format-security which Madriva is reportedly
using by default.

[base/gserror.h]

2009-02-09T00:32:35.099915Z Alex Cherepanov

Add a reference to doc/Use.htm#CIDFontSubstitution to the message about
CIDFont substitution based on registery and ordering data. Bug 690102.

[Resource/Init/pdf_font.ps]

2009-02-08T06:05:54.380114Z Alex Cherepanov

Correct handling of the operand stack overflow requires one more element than
the normal case. The maximum operand stack size has been reduced by 1 element
relatively to the size set by rev. 6889 for the bug 688764. Bug 690209.

[Resource/Init/gs_init.ps]

2009-02-06T19:17:54.834304Z Ray Johnston

Fix for 0 length files from the bit*** devices when -dLastLine was not set.
The LastLine now defaults to the last line of the page (height-1). Bug 690217.
Thanks to Piotr Strzelczyk for spotting this.

DETAILS:

Note that this prevents output of a single line at the top (line 0), but this
was mostly just for testing to emulate custom devices that only call 'get_bits'
on less than all of the lines which had the potential to confuse the thread
lookahead prediction logic in the multi-threaded rendering case.

[base/gdevbit.c]

2009-02-05T13:29:10.275517Z Ken Sharp

New feature (pswrite): Center pages on output, new switch -dCenterPages

Details:
bug #690100 "Enhancement request: create centered output when reading PDF"

Added a new switch to the collection of media handling controls supported by ps2write. The new CenterPages switch will center the output image on the media, regardless of the size of the media (if the output is larger than the media it will be truncated, but the image will still be centered on the media).

This switch is compatible with the RotatePages control, but not with SetPageSize or FitPages. Like the other switches it can be set as an argument to ps2write when creating a PostScript file (which fixes the result) or it can be supplied to the consuming interpreter in some fashion.

Updated ps2ps2.htm with the new details.

[doc/Ps2ps2.htm base/gdevpdfx.h base/gdevpdfp.c Resource/Init/opdfread.ps base/gdevpdfu.c]

2009-02-04T08:45:21.899308Z Ken Sharp

Fix (pdfwrite): Limit on CIDFont size too low

Details:
bug #688736 "ps2pdf does not work on these files"

The 'remaining' issue in these files is the 'error -15' problem. This is caused when writing out a subset CIDFont, and the subset grows to be a large font in its own right.

The way that CFF fonts are written, there is interaction between certain parts. The offset of various tables depends on the size of the Top Dict, but the Top Dict contains the offsets of the CharStrings and the CharSet, so its size is partially dependent on those offsets....

The code in psf_write_cid0_font() initially assigns large values (0x7fffff) to the offsets, then iterates over the data quickly converging on a suitable size of offset, which allows calculation of the Top Dict. 

The problem was that 0x7fffff was too small for the offset of the Font Dict, (which comes after the CharStrings) if the CharStrings table was very large (~8MB). While this is probably adequate in 'real life', because its unlikely a real job would contain so many different glyphs, it is simple to solve by increasing the original 'guess' from 0x7fffff to 0x1ffffff (~32MB), which should be enough for any font.

[base/gdevpsf2.c]

2009-02-04T08:44:40.067265Z Ken Sharp

Fix (pswrite): Incorrect A3 page size

Details:
bug #690259 "A3 pagesize pointsize definition wrong in gdevpsu.c"

The definition of the A3 paper size was 842 by 1190 in psw_write_page_header(). The definitions elsewhere in GS have a height of 1191 (which is closer to the ISO metric paper size).

Modified the page height to be 1191, also modified the media matching code so that it allows +/- 5 points when matching media.

Thanks to Roland Friedwagner for debugging the problem and supplying a patch, and to Alex Cherepanov for suggesting the media matching.

[base/gdevpsu.c]

2009-02-04T03:39:35.058845Z Alex Cherepanov

Keep reading the data sources until all of them reach EOF instead of bailing
out when the first one reaches EOF. Different data sources can use different
compression techniques and buffer sizes. The mask in masked images also has
different length than other streams.
Bug 690237, customer 850.

[psi/zimage.c]

2009-02-03T23:56:30.290105Z Alex Cherepanov

Add one more header type to the list of possible CFF headers.
Bug 690256, customer 210.

[Resource/Init/pdf_font.ps]

2009-02-03T19:23:42.937693Z Ralph Giles

Bump version number and product name after the 8.64 release.

[base/gscdef.c base/version.mak Resource/Init/gs_init.ps doc/News.htm]

2009-02-03T17:03:41.696119Z Ralph Giles

Update release date and change logs for the 8.64 release.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 base/gscdef.c man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Fonts.htm doc/Ps2ps2.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp man/font2c.1 man/gsnd.1 base/version.mak man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2009-02-02T19:13:01.319812Z Ralph Giles

Update change logs and release date for 8.64rc3.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/Changes.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp man/font2c.1 man/gsnd.1 base/version.mak man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Details.htm doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2009-02-02T08:58:11.805173Z Ray Johnston

Fix broken bbox device caused by the 'fillpage' commit of rev 9288. This
resolves bug 690260 and other cases where the bbox was all 0's.

DETAILS:

When the 'RECT_IS_PAGE' check was removed, the BBOX_INIT_BOX function was
invoked unconditionally MUCH too often, leading to an empty bbox (0's)
which also caused the x11 device to not update many areas from the under-
lying image24 buffer to the screen. The 'BBOX_INIT_BOX' should only be
needed when the params change the geometry or when 'fillpage' is done.

[base/gdevbbox.c]

Version 8.64 (2009-02-02)

This is the fifth scheduled release in the stable Ghostscript 8.6x series.

Approximately 100 bugs have been fixed since the 8.63 release.

Of particular note in this release are improvements to overprint and spot color support in documents with transparency, improvements to PDF and PS output, proper handling of PDF-specific text rendering modes and support for reading AES-encrypted PDF documents.

Also improved is handling of CJK text, especially in vertical writing modes, memory footprint processing some files at high resolution and support for using the system's default paper size on unix.

The interpreter's handling of color spaces has been moved from PostScript code to C.

A number of the included printer drivers and cups wrappers have been updated to support a PDF-based workflow. Also fixed are several long-standing bugs in the pcl drivers with respect to duplex, resolution and paper tray selection.

The following bugs were open at the time of the last release:

226943, 430175, 465936, 493348, 535932, 578865, 614298, 626295, 686853, 686865, 687011, 687084, 687095, 687146, 687193, 687257, 687271, 687280, 687295, 687297, 687303, 687327, 687375, 687414, 687475, 687492, 687514, 687520, 687536, 687561, 687593, 687608, 687630, 687650, 687666, 687674, 687677, 687695, 687697, 687702, 687715, 687721, 687728, 687731, 687775, 687780, 687782, 687793, 687796, 687805, 687850, 687887, 687903, 687904, 687915, 687931, 687950, 687981, 687983, 688007, 688022, 688024, 688026, 688032, 688036, 688042, 688061, 688064, 688081, 688130, 688166, 688184, 688187, 688204, 688210, 688215, 688227, 688267, 688269, 688280, 688288, 688312, 688318, 688320, 688333, 688342, 688361, 688363, 688372, 688386, 688387, 688389, 688395, 688413, 688436, 688437, 688440, 688448, 688473, 688475, 688483, 688495, 688500, 688515, 688528, 688533, 688539, 688540, 688542, 688557, 688565, 688580, 688581, 688601, 688604, 688605, 688607, 688616, 688617, 688627, 688636, 688638, 688647, 688651, 688655, 688673, 688699, 688708, 688709, 688710, 688714, 688728, 688731, 688736, 688757, 688777, 688797, 688818, 688829, 688843, 688846, 688871, 688872, 688908, 688918, 688919, 688926, 688933, 688942, 688949, 688958, 688969, 688978, 688990, 688994, 688999, 689003, 689011, 689013, 689025, 689028, 689031, 689032, 689040, 689044, 689046, 689048, 689057, 689060, 689070, 689076, 689077, 689078, 689081, 689093, 689094, 689098, 689133, 689137, 689145, 689150, 689153, 689161, 689167, 689174, 689184, 689188, 689195, 689198, 689199, 689209, 689222, 689224, 689236, 689247, 689248, 689252, 689253, 689278, 689279, 689280, 689283, 689289, 689290, 689295, 689308, 689331, 689335, 689340, 689341, 689361, 689370, 689376, 689378, 689392, 689396, 689418, 689419, 689421, 689422, 689423, 689438, 689439, 689450, 689451, 689456, 689460, 689471, 689484, 689487, 689489, 689490, 689498, 689500, 689502, 689506, 689507, 689512, 689518, 689522, 689546, 689547, 689549, 689554, 689557, 689560, 689561, 689563, 689566, 689571, 689573, 689574, 689581, 689584, 689585, 689591, 689592, 689595, 689598, 689601, 689606, 689610, 689616, 689623, 689625, 689627, 689632, 689636, 689641, 689653, 689657, 689658, 689663, 689670, 689674, 689681, 689682, 689684, 689689, 689690, 689691, 689697, 689698, 689704, 689705, 689709, 689710, 689711, 689715, 689721, 689725, 689726, 689727, 689734, 689737, 689741, 689747, 689752, 689756, 689759, 689760, 689761, 689767, 689769, 689772, 689775, 689778, 689781, 689786, 689792, 689793, 689794, 689799, 689801, 689805, 689808, 689817, 689822, 689823, 689826, 689835, 689836, 689840, 689853, 689856, 689858, 689859, 689860, 689861, 689862, 689868, 689869, 689870, 689871, 689878, 689883, 689885, 689910, 689915, 689916, 689917, 689928, 689929, 689930, 689931, 689933, 689937, 689938, 689939, 689940, 689941, 689942, 689943, 689947, 689950, 689951, 689952, 689957, 689968, 689969, 689972, 689974, 689980, 689986, 689991, 689996, 689997, 690003, 690005, 690006, 690007, 690009, 690020, 690022, 690024, 690025, 690026, 690029, 690033, 690036, 690043, 690047, 690051, 690053, 690054, 690056, 690057, 690058, 690061, 690066, 690068, 690069, 690073, 690083, 690084, 690085, 690093, 690094, 690098, 690100, 690102, 690110, 690115, 690119, 690123, 690125, 690126, 690131, 690132, 690137, 690143, 690146, 690157, 690160, 690162, 690170, 690171, 690174, 690176, 690180, 690182, 690183, 690184, 690185, 690189, 690191, 690192, 690199, 690200, 690203, 690207, 690208, 690209, 690212, 690213, 690214, 690216, 690218, 690224, 690225, 690226, 690229, 690230, 690232, 690233, 690234, 690235, 690237, 690238, 690239, 690241, 690246, 690247, 690248, 690249, 690250, 690251, 690253, 690256, 690259, 690261, 690262, 690263, 690264.

Incompatible changes

In this release the C source files have been split into two new directories. Interpreter source files are now in psi and the graphics library and output devices are now in base. Previously everything was in src. This may cause problems with existing references in external build files or when applying patches generated against an older version.

The compiled in font set in Resource/Fonts has been updated to the version from the 8.11 release. This is the same set which was recommended prior to the 8.63.

Changelog

2009-02-02T08:58:11.805173Z Ray Johnston

Fix broken bbox device caused by the 'fillpage' commit of rev 9288. This
resolves bug 690260 and other cases where the bbox was all 0's.

DETAILS:

When the 'RECT_IS_PAGE' check was removed, the BBOX_INIT_BOX function was
invoked unconditionally MUCH too often, leading to an empty bbox (0's)
which also caused the x11 device to not update many areas from the under-
lying image24 buffer to the screen. The 'BBOX_INIT_BOX' should only be
needed when the params change the geometry or when 'fillpage' is done.

[base/gdevbbox.c]

2009-02-02T08:52:01.582216Z Ray Johnston

Revert the patch of 9314 that caused a problem with the Ubuntu bug 160203
(https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/160203). This
patch appears to be a fix for a much older (~2004) version of gs and should
not be needed as of rev 8161 that resolved segfaults when there is a NULL
get_color_mapping_procs pointer. The mapping of 'black' and 'white' is
needed to properly allow for non-white painting in the bbox device to
avoid 0 0 0 0 BoundingBox.

[base/gdevbbox.c]

2009-01-30T21:10:55.690493Z Russell Lang

Add the default papersize module to the OS/2 build.

[psi/os2.mak]

2009-01-27T23:04:37.869301Z Ralph Giles

Update the directory listing the license for the source code
reorganization.

[LICENSE]

2009-01-27T22:40:23.384111Z Ralph Giles

Update internal copyright string.

[base/gscdef.c]

2009-01-27T21:00:23.120021Z Ralph Giles

Update changelogs and release dates for 8.64rc2.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/Changes.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp man/font2c.1 man/gsnd.1 base/version.mak man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Details.htm doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2009-01-27T20:50:54.789641Z Ralph Giles

Update the release notes for 8.64rc2.

The x11alpha issue has been worked around.

Add some comments from Till Kamppeter.

[doc/News.htm]

2009-01-27T20:43:39.460217Z Ralph Giles

Fix fillpage in the x11alpha device.

This reverts an incorrect code change which prevented the fillpage
method of the x11alpha device from clearing the buffer. Bug 690255.

Details:

In r9288, a new fillpage method was added. This is a stub in printer
devices, but is overridden to detect page flushes in some high
level devices. That commit included incomplete changes to gdevxini.c
which didn't compile. Alex suggested a fix in 690202, which was
committed as r9294 after approval from the author of 9288. This was
what broke page clearing in the x11alpha device.

This commit removes the changes both commits made to the x11 devices and
restores gdevxini.c to its state prior as of r9287.

[base/gdevxini.c]

2009-01-27T20:43:37.567128Z Ralph Giles

Update documentation on the COMPILE_INITS makefile variable.
In particular, it's normally no longer 0.

Thanks to Ken Sharp for pointing this out.

[base/gs.mak]

2009-01-27T20:43:33.967975Z Ralph Giles

Escape significant characters when generating html changelog entries.

[toolbin/split_changelog.py]

2009-01-27T00:18:29.136711Z Ralph Giles

Remove $(GS_LIB)\Resource directory from the search path in the msvc 
build to shadowing the compiled in version.

GS_LIB is set in the Windows registery by the installer, but it does not 
currently install a duplicate copy of the Resource tree in the 
filesystem. Having this directory in the search path caused Ghostscript 
to use it for Resource lookup to the exclusion of the %rom% version, and 
since the files weren't installed there, Ghostscript would error out in 
the initialization phase.

Files like cidfmap and available fonts can still be overridden by 
putting them in $(GS_LIB)\lib and $(GS_LIB)\fonts.

Patch from Russell Lang.

[psi/dwsetup.cpp]

2009-01-26T19:25:28.295228Z Ralph Giles

Update changelogs for 8.64rc1.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

2009-01-26T18:59:39.072673Z Ralph Giles

Release notes for 8.64rc1.

[doc/News.htm]

2009-01-26T18:05:53.102397Z Ralph Giles

Propagate release number and date to the documentation.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Fonts.htm doc/Ps2ps2.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2009-01-26T18:04:16.208144Z Ralph Giles

Bump release numbers and copyright dates for 8.64rc1.

[base/gscdef.c base/version.mak doc/News.htm psi/dwsetup.rc psi/winint.mak doc/Release.htm]

2009-01-26T18:02:43.525231Z Ralph Giles

Work around an issue with comment parsing in the pre.tcl release script.

My tclsh seems to be broken.

[toolbin/pre.tcl]

2009-01-26T18:02:41.107170Z Ralph Giles

Update the pre.tcl release script for the new source locations.

[toolbin/pre.tcl]

2009-01-26T18:02:37.633990Z Ralph Giles

Update the pre.tcl release script for the new gs_init.ps location.

The essential ps library files were moved from lib to Resource/Init for
clarity and simpler behavior with compile-inits.

[toolbin/pre.tcl]

2009-01-26T17:33:36.155851Z Ken Sharp

Fix (pswrite): Incorrect PageBoundingBox comment location

Details:
The new %%PageBoundingBox comment was being emitted between a %%BeginPageSetup and %%EndPageSetup comment pair, which was causing it to be ignored by CUPS.

Moved the bounding box in front of the page setup comment

[base/gdevpsu.c]

2009-01-26T17:16:47.546837Z Ken Sharp

Yet more tidying up in the batch file. Adds release builds to the solution, better directory handling, a usage comment in the batch file and, if invoked without parameters, a usage printout for the user.

[toolbin/msvcxml.bat]

2009-01-25T06:59:45.428302Z Ralph Giles

Make the GS_SPLIT_LIBS configure function only recognize -l at the start 
of an argument, to avoid false positives from hyphens inside linker 
arguments. Bug 690254.

[base/configure.ac]

2009-01-24T09:31:46.808669Z Ken Sharp

This batch file, to generate a MSVC solution for building GS, was invalidated by the source re-organisation, and the inclusion of the resources in a ROM file system.

Fixed various aspects so that it now works again, basically.

[toolbin/msvcxml.bat]

2009-01-24T09:05:50.373013Z Ken Sharp

Add a check when comparing clip paths to see if both are NULL. Silences a Coverity warning and one day might conceivably prevent a crash.

[base/gdevpdfd.c]

2009-01-23T22:53:02.093705Z Ralph Giles

Convert 24 bit RGB data to grayscale when printing in monochrome with
eplaser device. Previously the RGB data was sent as is, resulting in
a stretched and truncated page image.

Patch from Olaf Meeuwissen. Bug 690252.

[contrib/eplaser/gdevescv.c]

2009-01-23T19:04:40.484432Z Alex Cherepanov

Continue the the fix from rev. 9384, plug 2 more ways that caused multiple
inclusion of page objects into the linearized file. Bug 690140, customer 932.

[lib/pdfopt.ps]

2009-01-23T03:10:05.467096Z Ralph Giles

Use the page parameters set on the X11 device when called by Ghostview.

This patch allows gv to control the output page parameters, overriding
document and gs default settings. Since it has been tested in the
Debian distribution and is contingent on being wrapped by the viewer,
I consider it low risk.

Original patch by William Bader. Bug 688943.

[base/gdevxini.c]

2009-01-22T13:53:18.843673Z Ken Sharp

Initialise two uninitialised variables. Not thought to be a real problem, but worth making certain. Flagged by Coverity.

[base/gdevpsf1.c base/gdevpsfx.c]

2009-01-22T13:15:07.920292Z Ken Sharp

Check the return value of gdev_prepare_stroke. Another warning from Coverity.

[base/gdevps.c]

2009-01-22T02:53:01.653019Z Alex Cherepanov

Fix multiple inclusion of page objects referenced from beads array.
Bug 690140, customer 932.

[lib/pdfopt.ps]

2009-01-22T01:48:31.483983Z Ray Johnston

Fix for Segfault with tiffsep devics when a file has more than 64 spot colors
and uses transparency. Clean up indentations to C-style. Problem seen with
Bug 690157.

DETAILS:

The number of channels needed in the pdf14 device is one greater than the
number of separations, to allow for the alpha channel (gxblend.h) and the
'comps' variable needs to be at a gx_color_index size to avoid truncation.

Note that the output from tiffsep and psdcmyk is still incorrect -- there
is a gray background in the black channel that is not expected. Also, the
color swatches defined as Alternate colors do not appear in the output,
only the Separations and the device (process) colors.

Also note that this does not address comment #5 from bug 690157 since the
default behavior when the maximum number of separations is reached is to
silently use the Alternate color.

This patch is primarily designed to cure the segfault (buffer OOB) issue.

[base/gdevp14.c base/gxblend.h]

2009-01-22T01:17:35.554315Z Alex Cherepanov

Check for and skip null objects (and other junk) in the /Anots array.
Bug 690244.

[Resource/Init/pdf_main.ps]

2009-01-21T15:34:55.892148Z Ken Sharp

Add a couple of error return checks which were missing. Picked up by Coverity.

[psi/zcolor.c psi/zicc.c]

2009-01-19T11:13:05.930829Z Ken Sharp

Revision 8951 missed an important part of the fix for pswrite, emitting a %%PageBoundingBox for each
page of the output.

[base/gdevpsu.c]

2009-01-19T09:47:56.340575Z Ken Sharp

Fix (pswrite): %%BoundingBox comment geenration
   (ps2write): media selection and %%BoundingBox generation

Details:
bug #690236 "Ghostscript is not able to convert PDF to PostScript 
maintaining the input document's page sizes"

The pswrite bug is actually in the consuming applications, which are unable to 
process the media selection requests in the pswrite output and instead use DSC
comments to select the media. pswrite attempts to use the bbox deice to generate a
%%BoundingBox comment, but because this is a high-level device, no marks are made, so 
the BoundingBox is 0 0 0 0. 

Fixed by using the media size instead if this case is detected.


ps2write did not generate a %%BoundingBox, or any other DSC comment at all, because it
does not produce DSC PostScript (there is a request to address this already #690064).
Also the media selection in the ps2write output is disabled by default, forcing users
to find some means to set particular keys in userdict on the target device.

Fixed by emitting a %%BoundingBox equal to the media size of the first page (NB as
this is not DSC, other pages will be selected incorrectly if this is all the
application uses). Also allow the use of the /SetPageSize, /RotatePages and /FitPages
keys during ps2write processing to emit a PostScript file with these keys already
set, thus allowing media selection to take place without further user intervention.

[doc/Ps2ps2.htm base/gdevpdfx.h base/gdevpsu.c base/gdevpdfp.c base/gdevpdfu.c base/gdevpdfb.h]

2009-01-18T19:57:58.223740Z Alex Cherepanov

Fix SEGV in 'inferno' device caused by insufficient memory allocation. Pass
correct device type to prn_device_body() macro. thanks to Wendy for the patch.

[base/gdevifno.c]

2009-01-16T18:38:48.474888Z Ken Sharp

Fix (pdfwrite): Invalid metadata for PDF/A output

Details:
bug #690046 "Ghostscript doesn't produce valid PDF/A-1B files"

Now that we have an example file, the remaining issues are resolved:

1) The recommended tags for font metadata in the ISO spec are not present in the XMP schema, resulting in Acrobat preflight complaining. Distiller does not (and never has, apparently) write font metadata for PDF/A files, and the spec says only that files 'should' contain metadata. For now we disable writing font metadata to match Distiller.

2) When converting TrueType fonts into CIDFonts, for PDF/A compatability, we must also write a CIDSet resource. The code was creating and initialising a table containing an explicit 256 entries, but the CIDSet resource was writing as many entries as there are glyphs in the base font. If this was larger we wrote uninitialised data to the CIDSet. Altererd to create and initialise a table the size of the number of glyphs in the base font.

[base/gdevpdtd.c base/gdevpdfe.c]

2009-01-16T05:03:44.102465Z Ralph Giles

Move the font api bridge implementations to the psi directory.

Bug 690231, fixes the language switch build with ufst.

These are referenced from int.mak and depend on interpreter-level 
headers. So while the font api should be part of the graphics library, 
these files actually belong in the interpreter.

[psi/fapi_ft.c base/fapiufst.c psi/fapiufst.c base/fapi_ft.c]

2009-01-15T15:22:39.193218Z Ken Sharp

Update a comment to say why the minimum file size is 4KB

[lib/pdfopt.ps]

2009-01-15T15:20:15.993430Z Ken Sharp

Fix (pdfopt): Minimum optimised file size changed in Acrobat 9

Details:
bug #690210 "Inconsistent "fast web view' results"

It seems Acrobat 9 will decide that any file less than 4Kb in size is not optimised for fast web view, regardless of content. Previous versions of Acrobat insisted on a minimum of 1Kb.

[lib/pdfopt.ps]

2009-01-15T09:16:00.166572Z Ken Sharp

Fix (pdfwrite)

Details:
revision 9346 sets the about member of the XMP metadata to empty ("") unconditionally, this should only be done when writing PDF/A files.

[base/gdevpdfe.c]

2009-01-15T07:52:13.786371Z Alex Cherepanov

Fix compilation on Windows NT, which doesn't define LOCALE_IPAPERSIZE.

[base/gp_wpapr.c]

2009-01-14T22:58:56.327548Z Ralph Giles

Check for a null target_info in bbox_image_end_image before
trying to free it. Fixes bug 680019.

[base/gdevbbox.c]

2009-01-14T11:15:24.692365Z Igor Melichev

Fix (graphics) : Redundant patterns in clist (continued 7).

DETAILS :

Bug 690228 "pcl6 regression".

Don't write a pattern in the short form (just tile id)
to the "all bands" list if some bands don't store same tile id.
Otherwise those bands would be confused and try to call pattern_load,
which is not supported while a clist playback.

[base/gxclpath.c]

2009-01-13T22:17:21.104569Z Alex Cherepanov

Return 0 when accessing Type1C font table out of range or the table is too
short and display a warning if possible. Bug 690050, customer 353.

DETAILS:
Old code smashed the stack when operator read was unsuccessful and failed
shortly afterwards. New code tolerates PDF files produced by 'Exstream
Dialogue', which have Type1C fonts with overlapping tables, which Ghostscript
shortens to non-overlapping length. Thanks to Ray for the origimal patch.

[Resource/Init/gs_cff.ps]

2009-01-13T18:38:37.869412Z Ray Johnston

Revert .outputattrkeys to the list prior to rev 8026 to fix problems with
Duplex introduced with that change. Bug 690041.

[Resource/Init/gs_setpd.ps]

2009-01-12T19:33:58.722824Z Ralph Giles

Fix a gcc warning in gxshade6.c.

When VD_TRACE is not defined, vdtrace.h defines most of its operations
as DO_NOTHING, but with was not done for vd_restore and vd_disable,
causing compiler warnings in gxshade6.c, where vd_disable is called
as the sole body of an if() statement.

Bug 690204.

[base/vdtrace.h]

2009-01-12T16:51:59.689070Z Ken Sharp

Fix (pdfwrite): Invalid metadata for PDF/A output

Details:
bug #690046 "Ghostscript doesn't produce valid PDF/A-1B files"

This does not, unfortunately, address some of the issues raised in the bug report,
without a sample PostScript file to work from these cannot currently be addressed.

However, there were significant problems with the XMP metadata being written:
1) The rdf attribute 'about' has changed, it is no longer recommended to use a UUID,
it should be left empty or formatted as a URI. Altered to empty.
2) The Adobe parser does not like mix and match of attributes and properties, if we
are setting properties, we can't use (at least some) attributes.
3) The preferred schema namespace prefix for the XMP basic schema is now 'xmp' not
'xap'.
4) Date syntax was incorrect for GMT. XMP specifies *either* 'Z' *or* +/-hh:mm. We
were writing 'Z00:00' (that is, both alternatives).

Also added support for the /Subject and /Keywords elements of the Document Info
dictionary, if these are present, as per the patch from Florian Haenel.

[base/gdevpdfe.c]

2009-01-10T22:11:18.954264Z Till Kamppeter

Add "-sstdout=%stderr" to scripts that call gs so that they don't corrupt their own output when outputing to stdout (Thanks to Dan Sheridan (djs at adelard dot com), Ubuntu bug #314439).

[lib/eps2eps lib/ps2pdfwr lib/ps2ps lib/ps2ps2 lib/dvipdf]

2009-01-09T08:53:40.554994Z Till Kamppeter

Added support for GNU Hurd (patch from Debian package).

[base/configure.ac]

2009-01-09T00:28:18.396434Z Ray Johnston

Correct very minor typo.

[Resource/Init/pdf_base.ps]

2009-01-08T21:28:55.852108Z Till Kamppeter

Small correction on ./configure magic for libpaper.

[base/configure.ac]

2009-01-08T12:51:35.348058Z Till Kamppeter

Added auto-detection for libpaper to the configure script

[base/configure.ac]

2009-01-08T12:43:28.851914Z Igor Melichev

Fix (TT font handler) : Wrong glyph posiitions with vertical writing mode (continued).

DETAILS :

Bug 689304 "improper handling of vertical japanese text".

This is fourth partial patch for the bug 689304.
It adds a code for processing CoverageFormat2,
which is used by IPAfont00203.

Besides that, in the old CoverageFormat1 code
subst.GlyphCount was used instead cov.GlyphCount . 
It didn't cause a problem because (we guess)
normally they are equal.

The field CoverageFormat2::RangeRecord is renamed into 
RangeArray to avoid possible conflict with same name for
a structure type. Rather it is a correct C,
we're not sure that all compilers accept it with no warning.

[base/gstype42.c]

2009-01-08T09:17:18.162362Z Russell Lang

Automatically select the default paper size from the locale
on the Windows platform, and make provision for doing this
on Linux.

DETAILS:
This adds a new platform function gp_defaultpapersize and a new 
operator .defaultpapersize.
In order of priority, the paper size is set from PAPERSIZE,
DEFAULTPAPERSIZE, .defaultpapersize, or the compiled in
device paper size.

It has been tested on Windows 98, XP and Vista.

[base/openvms.mmk base/lib.mak base/gp_paper.c doc/Use.htm doc/Develop.htm base/unix-aux.mak base/macos-mcp.mak psi/zmisc.c psi/os2.mak base/winlib.mak base/watclib.mak base/gp.h Resource/Init/gs_init.ps base/openvms.mak base/gp_upapr.c base/gp_wpapr.c doc/Language.htm]

2009-01-08T08:04:41.159684Z Russell Lang

Fix stackunderflow when specified PAPERSIZE is unknown.
Ghostscript will now use the device default page size when
PAPERSIZE is unknown.

[Resource/Init/gs_init.ps]

2009-01-07T17:36:55.528046Z Michael Vrhel

Fix for overprinting with transparency.  This fixes bugs related to the lack of overprint support when there is transparency present in the file. 

DETAILS: Previously if a sep device is used when processing a file that contains both transparency and overprinting, the overprinted colors would blow away the other sep colors.  In this commit, there was one fix to improper geometry in pfd14_cmykspot_put_image.  The remaining changes involved 1) passing overprint compositor actions to the pdf14 device, which occurs during the clist reading phase (in pdf14_create_compositor)  2) adding over_print and overprint mode to the pdf14 clist parameters (this follows the same process that is currently done for text knockout, blend mode etc) and 3) adding the actual fill support in pdf14_mark_fill_rectangle. 

EXPECTED DIFFERENCES:  In the regression tests Bug688631.pdf and Bug690206.pdf will have slight differences due to the blending of spot colors when the color space is subtractive. This matches what is seen in AR.

[base/gdevp14.c base/gdevp14.h base/gstrans.h]

2009-01-07T08:33:14.825057Z Ken Sharp

Fix (PDF Interpreter): Default Unicode decoding clashing with ToUnicode CMap

Details:
bug #690190 "Problem with -dProvideUnicode"

The ProvideUnicode switch creates a (read only) default Unicode decoding resource, presumably to use as a default ToUnicode Cmap when creating PDF files.

This interferes with PDF files which contain a real ToUnicode CMap, as the resource is read only and so cannot be updated with the content of the ToUnicode CMap.

Fixed by checking to see if the GlyphNamesToUnicode dictionary is writeable, and if it is not, creating a new one, when processing a ToUnicode CMap.

[Resource/Init/pdf_font.ps]

2009-01-06T14:38:01.194845Z Ken Sharp

Fix (pdfwrite): Missing glyphs in CIDFont causing errors.

Details:
Bug #690139: "Regression: Error writing PDF file: Missing glyph CID=0 in Bug689614.pdf".

When we find that a string in a PDF file uses a glyph which is not present in the current CIDFont we substitute the .notdef glyph (CID=0). However, if we do not have a width for the .notdef (this is the first missing glyph) we proceed to get one, and then attempt to run the CDevProc for the font.

This, unfortunately, attempts to use the original (missing) glyph, and so fails with a rangecheck error. Added a check to catch this condition and skip the CDevProc and caching.

Also improved the error message slightly.

[base/gdevpdtc.c]

2009-01-06T14:11:30.802229Z Igor Melichev

Fix (PDF interpreter) : A more explanatory message when a CID font is missing.

DETAILS :

Bug 688770 "/undefinedresource in --findresource--".

The patch prints which CID font is missing,
and a better explanation about CID font substitution and
about the related exit with error.

[Resource/Init/pdf_font.ps]

2009-01-05T17:17:01.015629Z Marcos H. Woehrmann

Removed old code that failed in 2009.

[toolbin/bugsByEngineer.pl]

2009-01-05T14:02:04.227069Z Till Kamppeter

Added examples of PostScript files with CJK text

[examples/cjk examples/cjk/all_ag1.ps examples/cjk/iso2022.ps examples/cjk/all_aj1.ps examples/cjk/all_aj2.ps examples/cjk/all_ak1.ps examples/cjk/gscjk_ac.ps examples/cjk/iso2022v.ps examples/cjk/gscjk_ag.ps examples/cjk/gscjk_aj.ps examples/cjk/all_ac1.ps examples/cjk/article9.ps examples/cjk/gscjk_ak.ps]

2009-01-05T10:34:13.766328Z Till Kamppeter

Accidentally committed an obsolete patch. Reverted.

[base/gdevxini.c]

2009-01-04T20:20:47.824575Z Till Kamppeter

Fix sigbus/segfaults on sparc, hppa, etc. Debian bug 453903.

See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=453903 for details.

[psi/store.h]

2009-01-04T20:15:19.267170Z Till Kamppeter

Improved man pages of ps2pdf.

[man/ps2pdf.1 man/de/ps2pdf.1]

2009-01-04T20:13:28.072664Z Till Kamppeter

Fixed syntax error in gs.css.

[doc/gs.css]

2009-01-04T20:11:57.725211Z Till Kamppeter

Assorted script fixes.

[lib/ps2epsi lib/dumphint lib/dvipdf]

2009-01-04T20:07:04.350954Z Till Kamppeter

Fix insecure script in toolbin.

[toolbin/pre.tcl]

2009-01-04T20:05:41.434499Z Till Kamppeter

Typo fixes in "gs" man page.

[man/gs.1]

2009-01-04T20:03:38.607601Z Till Kamppeter

Fix segfault in X device when page size changes.

[base/gdevxini.c]

2009-01-04T20:01:10.696570Z Till Kamppeter

Adjust the margins for Epson dot matrix printer drivers

[base/gdevepsn.c]

2009-01-04T19:58:54.777417Z Till Kamppeter

Fix a problem with Brother 7x0 GDI, contributed to Debian by B. Janssen.

[base/gdevhl7x.c]

2009-01-04T19:57:07.064594Z Till Kamppeter

Fix segmentation fault on -sDEVICE=bbox, contributed to Debian by Yaroslav Halchenko.

Original issue reported in
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=250290 and
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=254877

[base/gdevbbox.c]

2009-01-03T22:45:50.335886Z Michael Vrhel

Debug raw dumping code that I have found useful in my debug of transparency and overprint issues.  

DETAILS : Open images with Photoshop in the raw format with the dimensions given in the file name.

EXPECTED DIFFERENCES :  None

[base/gxblend.c base/gxblend.h]

2009-01-03T19:51:08.451624Z Igor Melichev

Fix (graphics) : Incorrect bounds for clipping list.

DETAILS :

Bug 690060 "Regression: ball not round in Altona_Visual_1v2a_x3.pdf"

The bug persists since the repository was created. 
The revision 8020 brought an attempt to fix it,
but really it just replaced one wrong code with another wrong one.
Coding the right formula now.

[base/gxcpath.c]

2009-01-01T05:34:09.090806Z Alex Cherepanov

Continue to access the stream while reading a string (sgets()) until the
string is filled, EOF is reached, or an error occurs. Don't return after
first partial read. Bug 690152.

DETAILS:
Old code did this only for 1-byte reads, which commonly occur during
reading stdin one byte at a time. Repeated reading is now extended to
reads of any size.

[base/stream.c]

2008-12-30T18:58:17.371540Z Igor Melichev

Fix (garbager) : Wrong object marks when the object is freed by a garbager callback.

DETAILS :

Debugged on Vista x64 with running a 32 bits debug build of revision 9299 
with this command line :

..\..\gs-hd\bin\gswin32c.exe -IF:\AFPL\gs-hd\Resource\Init;f:\afpl\fonts -Z$?@ -r300 
       -dMaxBitmap=1000000  -dNOOUTERSAVE -sDEVICE=ppmraw -sOutputFile=out.ppm -dBATCH 
       -dNOPAUSE "H:\AuxFiles\CompareFiles\084-01.ps"  

1. The main change (gsalloc.c) :

The bug persists since the repository was created. 
When an object is freed after the garbager marking phase and before the
relocation phase, the heap consistency check misrecognizes it
as a free object pointed from an useful object. It happens because
the smark field was left unchanged ("marked") but the object status 
changed to 'freed', which must be unmarked.

In the test case such thing happens when a names subtable is freed
with this stack :
    i_free_object()  Line 721
    name_free_sub()  Line 541
    name_scan_sub()  Line 582
    names_trace_finish()  Line 416
    gs_gc_reclaim()  Line 371 

The patch resets the mark whenever i_free_object is called,
so that any freed object automatically becomes unmarked.
We could do it more delicate with checking whether a garbager
is on stack with a new special flag in gs_ref_memory_t,
but we don't see enough reasons for such complex check.

2. Minor change (igc.c) : 

Provide a right operand when gs_abort is called from  
gc_objects_set_reloc. The old code crashed due to dereferencing NULL.

[psi/igc.c base/gsalloc.c]

2008-12-29T18:25:08.338456Z Marcos H. Woehrmann

Script to print out open customer/P1/regression bugs by engineer.

Usage:  bugsByEngineer.pl >report.txt

[toolbin/bugsByEngineer.pl]

2008-12-29T06:43:42.727931Z Michael Vrhel

Fix for Bug 689895.  gx_put_blended_image_cmykspot was improperly inverting the alpha channel.

[base/gxblend1.c]

2008-12-28T16:03:29.366807Z Alex Cherepanov

Use a proper destructor to free a file stream when access to the file is not
permitted in the safe mode, not just close the file and drop the rest of the
file structure. Bug 689975.

[psi/zfile.c]

2008-12-26T07:25:31.122671Z Alex Cherepanov

Fix 3 last cases of missing prototypes in MS Windows build.

[base/lib.mak psi/int.mak psi/zfcid1.c base/gxblend1.c base/gdevddrw.c]

2008-12-26T04:48:20.570500Z Alex Cherepanov

Remove the last 2 unused variables from Ghostscript code base.

[psi/dwtrace.c base/gdevdjet.c]

2008-12-24T20:33:22.470682Z Alex Cherepanov

Fix a buffer overflow in base font writer module of pdfwrite defice.
Allocate sufficient buffer for the worst case. Bug 690211.

[base/gdevpdtb.c]

2008-12-24T15:36:40.083208Z Ken Sharp

Fix (pdfwrite): Image with SMask fails when inside transparency group.

Details:
Bug #690139: "Regression: pdfwrite creates empty file".

The PDF Interpreter internally surrounds SMask images with an extra transparency group definition. If emitted to PDF this is invalid and causes Acrobat to complain. This was fixed in revision 6878 (bug 688767) by adding an extra parameter  'Image_with_SMask' to the dictionary.

The pdfwrite code checks for the existence of this in the group, and if present (and true) skips the transparency group begin. It also sets a flag in the device, to skip the end of the group as well.

However, the flag is only reset when a new transparency group is begun. If the SMask was nested inside a group then the flag remained set, causing the 'end' for all enclosing groups to be skipped as well. This caused empty output or, in extreme cases, a 'rangecheck' error in discardtransparencygroup, because we overflowed an internal stack.

We now set the device flag to false after we have skipped an end group.

[base/gdevpdft.c]

2008-12-23T09:05:30.676239Z Ken Sharp

Fix (pdfwrite): DSC comments interfering with Page Tree Orientation.

Details:
Bug #689922 "Rotation issues with pdfwrite and multiple operations".

When writing out a PDF file, pdfwrite adds /Rotate keys to individual pages, and if the document is gnerally rotated (eg landscape) will set a /Rotate key in the pages treee. This causes all pages which do not have their own value to inherit this as a default.

Unfortunately, the page tree code uses the same logic as the individual page, whch honours DSC '%%Orientation' and '%%ViewingOrientation' comments. If the last file processed contained one of these, this would become the default for all pages, regardless of their actual orientation. This would cause pages to be inappropriately rotated.

Fixed by clearing the DSC information before writing the orientation for the page tree, by this time all the pages that require it have already been written with their own value.

[base/gdevpdf.c]

2008-12-21T14:34:29.309508Z Igor Melichev

Fix (PS interpreter) : The operator 'gstate' leaked memory.

DETAILS :

Bug 689849 "gstate leaks memory"

The old code of gsave executes 'ref_save' without a clear reason. 
The patch disables it with #if 0.
For a while we keep the old code for an easier
understanding of an unexpected behavior difference, if any.

[psi/zdps1.c]

2008-12-21T07:46:52.896538Z Alex Cherepanov

Implement Algorithm 8.1 from PDF 1.6 Reference. Map /BBox of the appearance
stream transformed by /Matrix onto the annotation rectangle.
Bug 690195, customer 770.

[psi/zmatrix.c psi/int.mak Resource/Init/pdf_draw.ps]

2008-12-19T16:50:41.185072Z Ken Sharp

Fix: Problem with /DeviceN [/All].

Details:
Bug #690177 "Separation names become operator names.".

/DeviceN [/All] is technically illegal, but is allowed by Acrobat. We convert this to a /Separation /All colour space for compatibility. An error in the processing of this kind of space led to a string object being used in place of a name object to create the named space.

This led to 'peculiar' plate names instead of 'All', which caused no problems when rendering to CMYK (the alternate is used and sets all inks). However if rendering to a device with additional spot plates not alll plates would be marked as they should be for a /All space. Also pdfwrite produced incorrectly named plates in the output PDF file.

[psi/zcolor.c]

2008-12-19T01:53:18.887063Z Ralph Giles

Warn when the JPX ColorSpace key workaround is activated.

Details:

We don't use pdfformaterror because this is our failing, not the files.
But we call stderrprint to generate the output so it doesn't mangle
device output on stdout.

Suggested by Ray Johnston.

[Resource/Init/pdf_draw.ps]

2008-12-19T01:53:17.038875Z Ralph Giles

Assume unlabled JPXDecode streams are 8 bit DeviceRGB.

This is a work-around for bugs 688159, 689058 and 689509.

Details:

The PDF spec allows the ColorSpace and BitsPerComponent keys of a
JPXDecode filtered image dictionary to be left out, in which case
the interpreter is expected to obtain this information by examining
the stream.

This change does not implement that, but in most cases the image
is RGB, and 8 bits per component; assuming this format allows
correct rendering of all wild files we've seen of this type.

[Resource/Init/pdf_draw.ps]

2008-12-18T23:37:32.655756Z Alex Cherepanov

Change accessors to cmap data to support cmap subtables exceeding 64K-1 bytes.
Bug 690206, customer 870.

[Resource/Init/gs_ttf.ps]

2008-12-16T18:35:55.343539Z Ralph Giles

Fix a typo in commit r9288 which broke the X11 device build. Bug 690202.

Patch by Alex Cherepanov.

[base/gdevxini.c]

2008-12-16T17:52:13.417519Z Ralph Giles

Add the CVS directory to the romfs exclusion list. Bug 690205.

Details:

Currently the mkromfs script just includes the entire file tree under
Resource/ but the presence of any extraneous directories there confuses
the enumeration machinery. We have a exclusion for the .svn directory
so builds out of svn work, but apparently some people have a CVS mirror?

Anyway, it isn't difficult to add an additional exclusion for CVS
metadata. This isn't an issue for git, darcs or mercurial because they
keep all their repository data in the top-level directory.

[base/lib.mak]

2008-12-15T17:15:06.646171Z Ken Sharp

Enhancement (pdfwrite): Add support for the fillpage method.

Details:
The new fillpage device method can be used to detect occurences of erasepage more reliably (and probably more cheaply in performance terms) than the previous checks in the fill_rectangle methods. 

Removed the old code which checked the rectangle size against the page size, the colour against white, and the transparency stack depth, from the fill_rectangle methods. Added a new routine gdev_pdf_fillpage to implement the new fillpage device method.

[base/gdevpdfx.h base/gdevpdfd.c base/gdevpdfb.h]

2008-12-13T20:05:37.951803Z Igor Melichev

Enhancement (graphics) : Implement new device virtual method 'fillpage'.

DETAILS :

The new method improves the handling of 'erasepage' and 'fillpage'
for high level devices, bbox device. Also it is a preparation for
optimizing 'erasepage' for printer devices as for bug 690131.

When erasing a page, the old code passes fill_rectangle through
the device interface. However some devises need to recognize it
as a special high level operation and distinguish from an usual
rectangle filling. The old code implemented some trics for that.
This patch replaces the tricks with a strong logic for bbox device.
The pdfwrite device to be improved separately.

The old function gx_fillpage is now splitted into two parts,
one of which works before the device interface, and another one
after it. The second one looks as a default implementation
for the 'fillpage' device virtual method. Forwarding devices
implement new function gx_forward_fillpage.

[base/gdevrops.c base/gdevdflt.c base/gdevbbox.c base/gxcldev.h base/gxclipm.c base/gsovrc.c base/gxdevice.h base/gdevnfwd.c base/gspaint.c base/gdevddrw.c base/gxclip2.c base/gdevprn.h base/gdevp14.c base/gxdevcli.h base/gxclrect.c base/gdevxini.c base/gxclist.c base/gxclist.h base/gxclip.c base/gxclrast.c]

2008-12-13T16:54:17.751950Z Igor Melichev

Fix (graphics) : Redundant patterns in clist (continued 6).

DETAILS :

This is a further improvement for the bug 690133
"Regression: Ghostscript takes up all disk space when rendering eog or GIMP PDF output in 1200 dpi".
Also it is a preparation for a partial fix for the bug 690131 "Optimize consecutive setpagedevice". 

The last partch appears syntactically incorrect, now fixing.

[base/gxclpath.c]

2008-12-13T12:55:14.082194Z Igor Melichev

Fix (graphics) : Redundant patterns in clist (continued 5).

DETAILS :

This is a further improvement for the bug 690133
"Regression: Ghostscript takes up all disk space when rendering eog or GIMP PDF output in 1200 dpi".
Also it is a preparation for a partial fix for the bug 690131 "Optimize consecutive setpagedevice". 

The last partch wrongly distributed the saved pattern id for all bands
when writing a non-pattern color to all bands.
We believe it never happens the current revision with reasonable banding settings,
but fix fix it for code consistency and for avoiding problems
with further revisions.

[base/gxclpath.c]

2008-12-13T11:14:54.029422Z Igor Melichev

Fix (graphics) : Redundant patterns in clist (continued 4).

DETAILS :

This is a further improvement for the bug 690133
"Regression: Ghostscript takes up all disk space when rendering eog or GIMP PDF output in 1200 dpi".
Also it is a preparation for a partial fix for the bug 690131 "Optimize consecutive setpagedevice". 

This patch passes the coverage rectangle of a graphic element
for a better computation in cmd_put_drawing_color of the size 
would be consumed while serializing a color to clist
with copying to all covered bands.
When we need to force writing to all bands,
we pass a NULL instead the coverage rectangle.

[base/gxclpath.c base/gxclimag.c base/gxclrect.c base/gxclpath.h base/gxcldev.h]

2008-12-13T10:18:02.260144Z Ken Sharp

Fix (pdfwrite): Fonts with unusual FontMatrix generating incorrect FontBBox.

Details:
bug #689879 "wrong FontBBox in PDF file"

Fonts other than type 3 may not have a FontMatrix in PDF, these fonts are assumed to be on a 1000x1000 design grid. Most fonts already are, and embedded TrueType fonts are already catered for, but some unusual fonts have a non-standard (not [0.001 0 0 0.001 0 0]) FontMatrix. The matrix is accounted for when scaling the font, so the Tf operator is correct in the page content stream, but the FontBBox was calculated using the unscaled glyph outline.

We now scale the font outline into a 1000x1000 design grid before calculating the bounding box, so that the FontBBox entry will be correct.

[base/gdevpdtd.c]

2008-12-13T10:13:47.692668Z Ken Sharp

Fix (pdfwrite): Tidy up code.

Details:
Tidy up some code for bug #690118; When writing TrueType hmtx/vmtx, define a new function put_short which is functionally identical to put_ushort but doesn't truncate the sign bit. Use this instead of put_ushort when the value to be written may be negative. Add 0.5 to the floating point calculations and floor() the result so that we get the nearest approximation to the float when writing out the short.

A small number of files exhibit a number of single pixel differences in position or rendering of glyphs with this change. In all cases comparing the rendered result of the new PDF file with the rendered result of the original file shows no differences, so I consider these to be progressions.

[base/gdevpsft.c]

2008-12-10T19:10:43.669416Z Ralph Giles

Set standard properties on pdf_main.ps. Bug 690198.

[Resource/Init/pdf_main.ps]

2008-12-10T07:29:39.713832Z Igor Melichev

Fix (PDF interpreter) : Avoid extra erasepage, part 1.

DETAILS :

This is the first partial fix for the 
bug 690131 "Optimize consecutive setpagedevice".

The PDF interpreter calls extra setpagedevice for initializing the number of spot colors.
First it happens in pdfshowpage_setpage, and we merge that call
with another one that sets other multiple page parameters. 
Second in pdfshowpage_finish we replace it with .setpagedevice, 
which doesn't call .postinstall that calls erasepage.

[Resource/Init/pdf_main.ps]

2008-12-09T17:30:40.898715Z Marcos H. Woehrmann


Fix for weird math issue under AIX that cause problems in glpyh spacing when
writing type42 fonts for ps2write and pdfwrite.

This fixes bug 690118.

Details:

For reasons that I don't undertand under AIX (ushort) (double * double)
produces a 0 if the first double is > -1 and < 0 (and the sum is < -1).
Presumably the cast happens before the multiplication, but this isn't
reasonable and doesn't occur on other operating systems, even running
the same version of gcc.  Temporarily assigning the sum to a float and
then casting to a ushort resolves the problem.

The temporary assignment should be removed by the optimizer, so there
shouldn't be a performance hit (I did check, the optimized code is still
correct under AIX).

[base/gdevpsft.c]

2008-12-09T08:45:20.654566Z Ken Sharp

Fix (pdfwrite): regression with type 3 fonts using show charpath stroke combinations.

Details:
bug #690196 "regression: file for bug 689687"

The recent changes for text rendering modes caused a regression with Quark's type 3 font for special text effects, when optimising a show followed by charpath stroke into a single 'Tj' with a text rendering mode of 2 in the resulting PDF file.

Fixed by ceasing to treat type 3 fonts specially and applying the same optimisation as for other font types. A couple of other Quark files exhibit very small differences, comparing these to the rendered output of the original files the new result seems closer to the original. (ie a progression)

Also resolved a compiler warning.

[base/gdevpdtc.c base/gdevpdfd.c]

2008-12-09T08:01:43.121661Z Igor Melichev

Fix (graphics) : Redundant patterns in clist (continued 3).

DETAILS :

Bug 690133 "Regression: Ghostscript takes up all disk space when rendering eog or GIMP PDF output in 1200 dpi".

When filling a path with a pattern, the old code
stores the pattern to all bands that are covered with the path.
If the pattern is represented with a long clist, 
it consumes too big memory for the page clist.

If the pattern is big, the new code writes it 
to the "all bands" list instead replicating it to bands. 
Therefore the overall memory is smaller.

The decision about storing a pattern to "all bands"
should also depend on the number of bands.
This patch doesn't account that because current data flows
don't pass the number of bands to the point where
the decision must be taken. It may need a further improvement.

The threshold for "big" pattern is arbitrary set to 1Mb.
It may need an improvement also. It's another threshold 
than one for representing a pattern as a raster or a clist.

[base/gxclpath.c base/gxclutil.c base/gxcldev.h]

2008-12-09T07:58:55.697280Z Igor Melichev

Fix (graphics) : Redundant patterns in clist (continued 2).

DETAILS :

This patch is important for the bug Bug 690133 
"Regression: Ghostscript takes up all disk space when rendering eog or GIMP PDF output in 1200 dpi",
but it is not restricted with its case.

When writing a pattern color to a band,
the old code uses the "saved color" structure
for remembering which color has been stored for the band.
In the case of pattern it stores the client's pattern id.
However it doesn't provide enough resolution because
a client's pattern may be instantiated with various CTMs.
The new code uses the pattern tile id to distinguish the pattern instances.

We're not sure why saved color structure stores the client's pattern id only.
It should be so for pdfwrite, but need to check whether other
cases are possible. Therefore the current change is kind of hackish.
See comment in code.

[base/gxclpath.c]

2008-12-08T08:17:55.714566Z Ken Sharp

Fix (pdfwrite): Large type 1 or 2 fonts caused errors with text.

Details:
bug #690144 "Files render properly with gs, but are misformatted in ps2pdf"

Revision 8235 added support to pdfwrite for type 0 fonts with type 1 or type 2 (CFF) descendant fonts, emitting these as subsets of the original instead of rendering the glyphs and embedding type 3 fonts with bitmap images. This results in better quality and smaller files.

However type 1 or 2 fonts which are too large for an arbitrary Ghostscript limit (> 65537 glyphs) can not be copied. This 'should' have fallen back to the old mechanism, but some data had been altered which led to this failing.

The fix for this comprises 3 parts:

1) Mmodified scan_cmap_text to save the data we modify for subsetting, and restore it if pdf_obtain_font_resource_unencoded fails, which then falls back to the 'default' type 3 mechanism (in case of future problems in this area). 

2) Increased the limit of glyphs (for type 1 or 2 fonts) in gs_copy_font. Added a new parameter 'max_reserved_glyphs'. If this is -1 then we reserve enough space for the number of glyphs in the original font. Otherwise we reserve space for the specified maximum. This limit only applies to font type 1 or 2, and is used by pdfwrite to avoid making excessively large font copies.

3) Modified pdf_base_alloc so that if the font is large (and is not one of the standard 13 fonts), we don't allocate a complete copy for our 'subset', we only allocate as many glyphs as will fit in a standard Encoding, 256, plus  one for the required .notdef making 257 in total. We also avoid making a second 'complete' copy of the font, because we will never write the complete font.

[base/gdevpdtb.c base/gxfcopy.c base/gdevpdtc.c base/gxfcopy.h]

2008-12-05T07:39:06.671710Z Alex Cherepanov

Check the whole Decode array to detect special cases of identity and inverse
decoding. Previous test analyzed every channel separately and misidentified
decoding arrays like [0 1 1 0 0 1]. Bug 690178.

[base/gxipixel.c]

2008-12-05T04:44:51.989860Z Alex Cherepanov

Adds special, tolerant to singular matrix processing, to the case when
ImageMatrix is differs from the CTM by the translation vector only, which
happens in cached character rendering. The patch clears PostScript errors
during text rendering with singular CTM. Bug 690179, customer 870.

[base/gxipixel.c base/gsimage.c base/gxccache.c]

2008-11-29T14:33:26.712726Z Alex Cherepanov

Ignore /ToUnicode attribute when it points to an object other then a stream.
Bug 680138.

[Resource/Init/pdf_font.ps]

2008-11-29T12:27:04.428583Z Till Kamppeter

The pstopxl CUPS filter did not remove its temporary file.

[cups/pstopxl.in]

2008-11-27T15:05:37.010932Z Ken Sharp

Fix (pdfwrite): more issues with PDF Text rendering modes.

Details:
Bug #689692 Colour and linewidth is not set correct for text with rendermode STROKE
and FILLSTROKE
Bug #Bug690025 pxlmono driver prints some glyphs as squares when the input is PostScript generated by Ghostscript

This follows on from revision 9196 and further addresses problems with PDF text rendering modes. Fundamentally the problem is that the PDF text matrix (Tm) should not affect the stroke width. However PostScript only has one transformation matrix, so when we get a Tm, the PDF interpreter modifies the CTM accordingly. This alters the (effective) stroke width, resulting in incorrect output.

This patch modifies the CTM before executing a stroke in modes 2 & 6, and for mode 1 modifies the stroke width by calculating what it would have been if the CTM were the identity at the time the text block began. Since pdfwrite emits text in an identity CTM, this corrects the problem.

The pdfwrite code for combining show/charpath/stroke operations into a single text rendering mode has been modified to expect the CTM to be correct, and to utilise it, when emitting the combined operation.

[Resource/Init/pdf_ops.ps base/gdevpdts.c base/gdevpdfd.c base/gdevpdts.h base/gdevpdfg.c]

2008-11-27T05:20:05.725774Z Alex Cherepanov

Use the same name (/PDFType3Untitled) for all Type 3 fonts without /FontName
attribute. PDF interpreter doesn't need unique names and the previous attempt
to generate unique names didn't work. Bug 689358.

[Resource/Init/pdf_font.ps]

2008-11-27T01:58:54.354925Z Alex Cherepanov

Restore language level after loading pdfwrite.ps for consistency and
compatibility with PS utilities. Also pick a few nits that may cause errors
if some of start-up files ever loaded in level 1 mode. Thanks to SaGS
for the patch. Bug 688151.

[lib/pdfwrite.ps Resource/Init/gs_dpnxt.ps Resource/Init/gs_cff.ps]

2008-11-25T17:19:23.759068Z Till Kamppeter

Fixed paper tray selection for the PCL 4/5/5e drivers (bug 690182). Works fine now with "-dMediaPosition=..." and for all possible trays. Needs review to see whether it does not break anything else.

[base/gdevdjet.c]

2008-11-24T23:04:21.969628Z Alex Cherepanov

Skip everything before 'begincodespacerange' in ToUnicode CMap stream
to avoid PostScript errors in CMap headers. PDF interpreter doesn't
need any data from the header. Bug 689842, customer 870.

[Resource/Init/pdf_font.ps]

2008-11-24T19:15:04.507271Z Till Kamppeter

Fixed input tray selection support in the PCL-XL drivers ("pxlmono"/"pxlcolor"), fixes on CUPS filter and PPDs to make input tray selection actually work.

[base/gdevpx.c cups/pstopxl.in cups/pxlmono.ppd cups/pxlcolor.ppd]

2008-11-24T11:01:42.358113Z Till Kamppeter

Made the CUPS filters and PPDs for PCL-XL also work with PDF as input data format

[cups/pstopxl.in cups/pxlmono.ppd cups/pxlcolor.ppd]

2008-11-23T20:36:12.040586Z Igor Melichev

Fix (CID font emulation) : CID from another writing mode rendered a wrong glyph (continued)

DETAILS :

This improve3s the second partial fix for Bug 689304  
"improper handling of vertical japanese text", related to Comment #30, #31. 

The revision 9213 appears buggy.
When a SubstCID resource is not available,
the stack balance is broken.

[Resource/Init/gs_cidtt.ps]

2008-11-21T14:24:21.693040Z Till Kamppeter

The "cups" output device was logging way to much in CUPS' debug logging mode. Moved some logging to debug2.

[cups/gdevcups.c]

2008-11-21T05:31:10.447898Z Alex Cherepanov

Add a check for bogus '>>' after 'endstream' to recover files generated 
by 'Kroll Background Screening'. Bug 690161.

[Resource/Init/pdf_base.ps]

2008-11-20T21:11:09.954526Z Alex Cherepanov

Move validation of the page tree after installation of the decryption handler
because access to encrypted xref streams needs decryption. Fix regression
introduced by the rev. 8933. Bug 690175.

[Resource/Init/pdf_main.ps]

2008-11-20T19:31:36.700423Z Ralph Giles

Add AES support to the pdf interpreter.

This commit adds convenience wrappers around the aes stream
implementation to pdf_sec.ps, and calls them when appropriate,
based on the crypt filter methods defined in the file Trailer's
Encrypt dictionary. Bug 688958.

It also includes comment and whitespace cleanup.

[Resource/Init/pdf_sec.ps]

2008-11-17T19:43:47.727833Z Alex Cherepanov

Add missing initialization of read_id field in reusable streams.

DETAILS:
This error was detected by Valgrind. I don't have any samples where this fix
affects the output.

[psi/zfrsd.c]

2008-11-17T10:41:13.803460Z Ken Sharp

Fix (pdfwrite): Not considering all glyphs in a string when noting first/last character

Details:
Bug 690166: extra space after apostrophe when distilled
Revision 8235 added support for type 0 fotns with type 1 or 2 descendants, this required using pdf_adjust_first_last_char so that we correctly noted the used glyphs, and stored their widths.

An oversight in calling the function resulted in only the first glyph in the string being considered.

[base/gdevpdtc.c]

2008-11-16T14:47:49.851717Z Igor Melichev

Fix (PS interpreter) : Eliminate unuseful transfer of left side bearing to type42_finish.

DETAILS :

This change is algorithmically equivalent.

type42_finish never uses lsb data that could be passed to it via
operand stack from some clients. This patch removes those data
and related arguments of some C functions.

[psi/zchar42.c psi/zchar42.h psi/zchar.c]

2008-11-16T12:15:46.619814Z Igor Melichev

Fix (TT font handler) : Wrong glyph posiitions with vertical vcriting mode.

DETAILS :

Bug 689304 "improper handling of vertical japanese text".

This is third partial patch for the bug 689304.
The old formulas were obtained impirically and don't
give the right result. The new ones are coded with a better understanding
of the problem. See comments in code for more details. 

Rather the patch closes the bug, we want to do some additional
equivalent changes for cleaning the code. Another patch coming soon.

[psi/zchar42.c]

2008-11-15T14:07:27.807825Z Ken Sharp

Fix PS interpreter: issues with ICCBased spaces

Details:
Bug #690169 Regression: seg fault reading  Bug689830.pdf, Bug689831.pdf, and annots.pdf

The 9218 revision to restore the 'optional' nature of the Alternate in ICCBased colour spaces was unfortunately incomplete. This led to us trying to set a 'null' colour space when a PDF file had a damaged and unusable ICC specification.

We now use the technique specified in the PDF Reference, take the value of 'N' from the space and use that to select an appropriate alternate, when one is not specified.

[psi/zcolor.c]

2008-11-13T14:23:05.749468Z Alex Cherepanov

Skip null entries in /Annots array. Bug 690161.

[Resource/Init/pdf_main.ps]

2008-11-13T02:02:49.620374Z Ray Johnston

Revert 8.63 behavior where the /Alternate key/value pair in ICCBased param dictionaries
is optional. Bug 690165 for customer 850.

DETAILS:

This allows:

[ /ICCBased << /N 3 /DataSource (srgb.icc) (r) file >> ] setcolorspace

to work, where srgb.icc is the path to an 'input' ICC color profile.

Until Ghostscript has support for ICC profiles throughout, this is useful to
allow for setting the Resource/ColorSpace/Default*** colorspaces (or
defining the ColorSpace resources) using ICC profiles.

[psi/zcolor.c]

2008-11-10T19:01:57.531817Z Igor Melichev

Fix (clist writer) : A crash when transparent object appears over the page top.

DETAILS :

Bug 690149 "PDF-file can not be converted".

The transparency compositor cropping caused an attempt to
Write to a non-existing band over the page top.
This patch skips writing such compositor commands.

[base/gxclimag.c]

2008-11-09T20:38:08.817663Z Igor Melichev

Fix (CID font emulation) : CID from another writing mode rendered a wrong glyph (part 2).

DETAILS :

This change fixes the previous change's commitment error.
This log message describes the union of the 2 changes.

This is a second partial fix for Bug 689304
"improper handling of vertical japanese text", related to Comment #30, #31.

When emulating a CID font with an Open Type font, a CID is first
mapped to an OpenType encoding and then to a glyph index.
However OpenType provides same character codes for glyph variants,
which render differently depending on writing mode.
The glyph '(' is an example.

This patch works for OpenType fonts only, which provide a GSUB for vertical 
writing mode.
It is not working for True Type collections with no GSUB.
They need a further improvement.

The patch assumes that all interpreters initialize a Type 42 font with 
zeroing all its fields.
Postscript interpreter does so since a long ago, but we're not sure about 
others.
They may need an improvement.

1. Define a new resource category SubstCID (Resource/Init/gs_ciddc.ps).

2. Provide a tool for generating resources for that category 
(toolbin/GenSubstCID).

3. Provide resources for various orderings (Resource/SubstCID/CNS1-WMode,
Resource/SubstCID/GB1-WMode, Resource/SubstCID/Japan1-WMode, 
Resource/SubstCID/Korea1-WMode).

4. When loading a TrueType or OpenType font for a CID font emulation, 
associate an
appropriate SubstCID resource to it (Resource/Init\gs_cidtt.ps).
(We do associate the resource with TrueType hoping that some
True Type fonts may provide GSUB).

5. Define a new structure gs_subst_CID_on_WMode_s for storing that 
information
for the graphics library (base\gxfcid.h), and its garbager descriptor 
(base/gsfcid.c).
Since it may duplicate for several fonts, it is shared and 
reference-counted.

6. The new function get_subst_CID_on_WMode loads the resource data for the 
graphics library
in psi\zfcid1.c . Note it is implemented for PS interpreter only.

7. Generalized gs_type42_substitute_glyph_index_vertical with providing a 
CID in base/gstype42.c
and made it be a virtual function of gs_font_type42 (base/gxfont42.c).
We're not sure how other interpreters initialize the font, so
we're checking it for NULL for safety and use 
gs_type42_substitute_glyph_index_vertical
as a default implementation.

8. font11_substitute_glyph_index_vertical is another implementation of that 
function, which
accounts gs_subst_CID_on_WMode_s data for providing a right glyph depending 
on WMode.
Rather a SubstCID resource provides a substitution, currently
we only use the fact that a CID is substituted, and never use
the substituting CID. Nevertheless we prefer to define and store the 
resource
in the complete form for possible improvements in future (zfcid1.c).

9. release_subst_CID_on_WMode automatically releases the resource data
when all fonts (that use it) are released.

10. Added SubstCID to the ROM file system in psi/psromfs.mak .

11. Minor unrelated fix : propagate errors from gs_font_notify_register for 
(7) in base/gstype42.c .

[psi/zchar42.c Resource/Init/gs_ciddc.ps Resource/Init/gs_cidtt.ps psi/int.mak psi/zfcid1.c psi/zfont42.c]

2008-11-09T19:09:30.285684Z Igor Melichev

Fix (CID font emulation) : CID from another writing mode rendered a wrong 
glyph (part 1).
This revision is incomplete due to a commitment error. Please use next 
revision.

DETAILS :

This is a second partial fix for Bug 689304
"improper handling of vertical japanese text", related to Comment #30, #31.

When emulating a CID font with an Open Type font, a CID is first
mapped to an OpenType encoding and then to a glyph index.
However OpenType provides same character codes for glyph variants,
which render differently depending on writing mode.
The glyph '(' is an example.

This patch works for OpenType fonts only, which provide a GSUB for vertical 
writing mode.
It is not working for True Type collections with no GSUB.
They need a further improvement.

The patch assumes that all interpreters initialize a Type 42 font with 
zeroing all its fields.
Postscript interpreter does so since a long ago, but we're not sure about 
others.
They may need an improvement.

1. Define a new resource category SubstCID (Resource/Init/gs_ciddc.ps).

2. Provide a tool for generating resources for that category 
(toolbin/GenSubstCID).

3. Provide resources for various orderings (Resource/SubstCID/CNS1-WMode,
Resource/SubstCID/GB1-WMode, Resource/SubstCID/Japan1-WMode, 
Resource/SubstCID/Korea1-WMode).

4. When loading a TrueType or OpenType font for a CID font emulation, 
associate an
appropriate SubstCID resource to it (Resource/Init\gs_cidtt.ps).
(We do associate the resource with TrueType hoping that some
True Type fonts may provide GSUB).

5. Define a new structure gs_subst_CID_on_WMode_s for storing that 
information
for the graphics library (base\gxfcid.h), and its garbager descriptor 
(base/gsfcid.c).
Since it may duplicate for several fonts, it is shared and 
reference-counted.

6. The new function get_subst_CID_on_WMode loads the resource data for the 
graphics library
in psi\zfcid1.c . Note it is implemented for PS interpreter only.

7. Generalized gs_type42_substitute_glyph_index_vertical with providing a 
CID in base/gstype42.c
and made it be a virtual function of gs_font_type42 (base/gxfont42.c).
We're not sure how other interpreters initialize the font, so
we're checking it for NULL for safety and use 
gs_type42_substitute_glyph_index_vertical
as a default implementation.

8. font11_substitute_glyph_index_vertical is another implementation of that 
function, which
accounts gs_subst_CID_on_WMode_s data for providing a right glyph depending 
on WMode.
Rather a SubstCID resource provides a substitution, currently
we only use the fact that a CID is substituted, and never use
the substituting CID. Nevertheless we prefer to define and store the 
resource
in the complete form for possible improvements in future (zfcid1.c).

9. release_subst_CID_on_WMode automatically releases the resource data
when all fonts (that use it) are released.

10. Added SubstCID to the ROM file system in psi/psromfs.mak .

11. Minor unrelated fix : propagate errors from gs_font_notify_register for 
(7) in base/gstype42.c .

[Resource/SubstCID/CNS1-WMode base/gxfcid.h Resource/SubstCID base/lib.mak Resource/SubstCID/GB1-WMode Resource/SubstCID/Japan1-WMode base/gsfcid.c base/gxfont42.h psi/psromfs.mak base/gstype42.c toolbin/GenSubstCID.ps Resource/SubstCID/Korea1-WMode]

2008-11-07T18:49:34.403723Z Ralph Giles

Remove a duplicate typedef for stream_arcfour_state.

Details:

The duplicate (opaque pointer) typedef in gdevpdfx.h was
redundant and any users that dereferenced members or allocated
the struct on the stack already included sarc4.h.

I believe the idea here was just to hide the structure details
from some hypothetical user of the pdf_crypt api. However, the
stream state structure should either be opaque, with only the
typedef in sarc4.h or it should be public and using it requires
sarc4.h. The duplication isn't justified in either case.

Since stream state structures generally are public so they can
be stack-allocated, we decided to remove the duplicate typedef.

Also adds a missing dependency to the makefile.

Issue originally reported by the coverity hfa checker.

[base/gdevpdfx.h base/devs.mak]

2008-11-06T23:51:27.600449Z Marcos H. Woehrmann

Updates to nightly regressions to allow them to run under Mac OS X.  

Details:

Change uname parameters from '-m -o' to '-m -s'
Don't appened ".db" to filename when opening database.
Replace sendmail python function with call to /usr/bin/sendmail.
Archive daily rasters.
Change location of gscdef.c from src to base.
Call time from /usr/local/bin (/usr/bin/time doesn't take -f option).

Note that some of these changes are not compatible with peeves.

[toolbin/tests/make_baselinedb.py toolbin/tests/gscheck_raster.py toolbin/tests/testdiff.py toolbin/tests/compare_checksums.py toolbin/tests/gscheck_pdfwrite.py toolbin/tests/build_revision.py toolbin/tests/check_dirs.py toolbin/tests/compare_checksumdb.py toolbin/tests/gsconf.py toolbin/tests/get_baseline_log.py toolbin/tests/run_nightly.py toolbin/tests/gstestgs.py toolbin/tests/run_regression.py toolbin/tests/update_baseline.py]

2008-11-06T23:30:55.150402Z Marcos H. Woehrmann

Stopped generating 600 dpi raster files when running make_missing since they were never being tested.

[toolbin/tests/gsparamsets.py]

2008-11-06T23:27:54.191464Z Marcos H. Woehrmann

Made some messages prettier.

[toolbin/tests/testdiff.py]

2008-11-06T23:25:02.686517Z Marcos H. Woehrmann

Fixed typo.

[toolbin/tests/update_baseline.py]

2008-11-06T20:13:19.335714Z Igor Melichev

Fix (graphics) : A missed dependency in makefile.

[base/lib.mak]

2008-11-06T20:04:26.632073Z Igor Melichev

Fix (clist interpreter) : A faster procesing without a preliminary clearing of the band buffer.

DETAILS :

The preliminary cleaning of the buffer appears unuseful because erasepage
in the clist code performs same function.

[base/gxclread.c]

2008-11-06T19:09:39.284217Z Ralph Giles

Remove an unused variable.

[base/gdevpdtt.c]

2008-11-06T19:09:37.330669Z Ralph Giles

Add a missing include for pdf_prepare_stroke().

[base/gdevpdts.c base/devs.mak]

2008-11-05T20:41:22.951927Z Ralph Giles

Remove psromfs.mak from ugcclib.mak.

This makefile is ostensibly for the graphics library only.

[base/ugcclib.mak]

2008-11-05T20:41:06.620266Z Ralph Giles

Add -lpthread to ugcclib.mak. It is now required by sync=posync.

[base/ugcclib.mak]

2008-11-05T08:26:19.980667Z Ken Sharp

Fix (pdfwrite): several issues with PaintType 2 (stroked fonts) and PDF Text rendering modes.

Details:
Bug #690136 Differences in character stroke width
Bug #689970 major artefacts in pdfwriter output
Bug #688267 Ghostscript need native PDF graphic state
Bug #689654 pdfwrite ignores font /PaintType 1
Bug #689692 Colour and linewidth is not set correct for text with rendermode STROKE
and FILLSTROKE

The current implementation of text rendering modes has some problems. I've been able to address most of these in this patch by:

1) Making the charpath detection slightly less picky. This picks up more instances of filled text followed by 'charpath stroke', combining correctly into a PDF text  rendering mode.

2) Relaxing the criteria for detecting a Tr mode involving stroking.

3) Removing some spurious scaling, and applying a better scale factor when using stroked fonts (Paint Type 2).

There are still problems with this code, and they are insuperable in the current architecture of pdfwrite/PDF interpreter. Specifically; Text render mode 6 (fill, stroke and clip) doe snot work properly, text which is stroked using a linewidth set  outside the text block, and with a non-identity CTM and non-identity text matrix  results in incorrect stroke widths.

This will need to be addressed further under bug #688267, which is an enhancement. In the meantime this patch significantly improves the current implementation. Note; bug #689692 is still slightly incorrect with this patch, though improved. Bug #690025 is unchanged (still incorrect).

[base/gdevpdts.c base/gdevpdtt.c]

2008-11-04T05:07:32.360011Z Alex Cherepanov

Add support for indirect objects in /W and /W2 entries in the CIDFont
dictionary. Bug 690151.

[Resource/Init/pdf_font.ps]

2008-11-04T03:33:52.379523Z Alex Cherepanov

Export (i.e. don't undefine) runpdfpagerange procedure for the benefit
of PDF manipulation utilities. Bug 690153.

[Resource/Init/pdf_main.ps]

2008-11-03T06:26:32.640021Z Alex Cherepanov

Fix a bug in object stream handling that sometimes dropped incremental
updates. Bug 690141.

DETAILS:
An incremental update can replace only some of the objects in the
object stream. Old code didn't check xref tables and resolfed all 
unresolved objects from the stream. Once resolved, an object is no
longer accessed through xref.

[Resource/Init/pdf_base.ps]

2008-11-03T04:28:51.792909Z Ray Johnston

Fix Floating Point excpetion caused by improper initializer of a private device
structure subclassed (in the klunky C ghostscript fashion) from the gx_device_printers_s
structure. Restructure a macro in base/gdevprn.h to help prevent similar bit rot in the
future.  Bug 690122.

DETAILS:

The problem was with devices that use the contrib/lips4/gdevlprn.h header
files. The lp_duplex_device_body_rest_ and lp_device_body_rest_ macros that
initialized the prn_device structure 'common' elements were out of date with
respect to the revision in the gx_device_printer_s structure made for the
multi-threaded rendering. The num_render_threads_requested integer was added.

I restructured the prn_device_body_rest2_ in base/gdevprn.h so that the
contrib/lips4/gdevlprn.h initialization macro could use this to minimize the
likelihood of bit rot in the future.

I did a search for other devices that might have the same problem and did not
find them (although I may have missed them).

[base/gdevprn.h contrib/lips4/gdevlprn.h]

2008-10-28T03:15:52.084170Z Alex Cherepanov

Don't assume that the top of the dictionary stack is writable or can be made
writable by allocating a new PDF graphic state. The latter cannot be done in
pdfinflt.ps and similar clients. This patch replaces my previous fix (r. 9124)
for the bug 690088. Bug 690134.

[Resource/Init/pdf_base.ps]

2008-10-28T00:43:49.468966Z Alex Cherepanov

Ignore named encodings for known symbolic fonts. Bug 690135, customer 580.

DETAILS:
Acrobat reader appears to know that /WinAnsiEncoding is not compatible with
Wingdings2. The patch looks up the font name in a table to determine whether
the font is symbolic because corresponding /Flags attribute is unreliable.

[Resource/Init/pdf_font.ps]

2008-10-27T21:53:17.877952Z Ralph Giles

Update the documentation reference to psromfs.mak.

This file moved from base to psi in r9126.

[doc/Develop.htm]

2008-10-25T04:34:30.742669Z Michael Vrhel

Fix for bug 690103.  This issue was introduced with r8868 where spatial interpolation in the source color space was introduced.  The part that was missing in that commit was to handle the case where we had 8 bit image data that was non CIE based and NOT encoded with [0 1] .

DETAILS:

This patch was tested with forced interpolation on a set of files that are known to have issues with interpolation. It performed properly on those and on the customer's bug file. 

The part that was missing in the old code was the case where we have encoded
(not [0 1]) nonindexed 8 bit image data that is not CIE based.	For this case,
it was not getting properly decoded prior to interpolation.

[base/lib.mak base/gscspace.h base/gxiscale.c base/gscspace.c]

2008-10-24T14:51:44.819826Z Igor Melichev

Fix (TT font handler) : Properly process a broken TTC header.

DETAILS :

Bug 690105 "seg fault reading pcl file"

1. Check for TTC version header and print error if it is unknown.
2. Fixing the formatting according to C-style.htm .

[base/gstype42.c]

2008-10-23T04:33:29.326096Z Marcos H. Woehrmann

Make gx_sort_ht_order() deterministic.

DETAILS:

The gx_sort_ht_order() routine sorts the halftone mask values.
These values are often the same and qsort() does not guarantee the
order of equal elements.  However, the order appears to be significant
for the output (differences in the nightly regression are seen on
different computers).  And it's also possible that this indeterminism
is part of the cluster regression problem.

This revision sorts equal masks by index value.

DIFFERENCES EXPECTED:

Some of the pbmraw or pkmraw nightly regressions may have minor
differences in the dithering pattern.

[base/gsht.c]

2008-10-23T04:28:42.566180Z Marcos H. Woehrmann

Changed decleration of det from float to double in gs_matrix_invert().  

DETAILS:

On peeves the results of gs_matrix_invert() change depending on
whether or not compiler optimization is enabled if det is declared
as a float.  I believe this is due to the optimized code never
storing the det value so it never get shortened to a float; by
declaring it as a double the unoptimized code should act the same.

[base/gsmatrix.c]

2008-10-21T18:09:59.854984Z Ralph Giles

Fix a makefile dependency which should have been added in r8872.

[base/lib.mak]

2008-10-21T16:26:09.248809Z Igor Melichev

Fix (PS intetreter) : Crash in garbager when resetting marks in names table.

DETAILS :

Bug 690129 "MSVC8 x64 debug build crashes in names_trace_finish"

1. The real bug : the old code sometimes removes an element from nt->sub table with name_scan_sub,
and then resets marks in the element that has same table index. 
If the removed element is the last one,
it tryes to process an uninitialised element and crashes indeterministically.
The new variable save_count works for that.
The bug persisted since the repository was created.

2. Minor change : an optimization : The old code checked twice
for the loop exit condition. To fix it we changed the type of
the variable 'i' and changed the loop condition.

[psi/iname.c]

2008-10-21T10:35:52.809111Z Ken Sharp

Fix (pdfwrite): Conversion of PaintType 0 fonts to text rendering mode
1 sometimes produced incorrect stroke width.

Details:
Bug #690116 "StrokeWidth of outline font too small"

pdfwrite converts fonts with a PaintType of 0 (outline fonts) to a normal
font, but sets the text rendering mode to 1. The calculation of the 
required stroke width was insufficient in some cases.

[base/gdevpdts.c base/gdevpdtt.c base/gdevpdts.h]

2008-10-19T20:32:03.940940Z Alex Cherepanov

Search for 'startxref' instead of '%%EOF' in PDF recovery code because
'%%EOF' is mangled more ofthen than 'startxref'. Bug 690071, customer 384.

[Resource/Init/pdf_rbld.ps]

2008-10-19T01:23:28.662366Z Alex Cherepanov

Extend the size of the array for procedures scheduled for binding in DELAYBIND
mode to 2000. Prevent an overflow when 3rd party code (such as Ubuntu CJKV
patch) binds many new procedures. Bug 690124.

[Resource/Init/gs_init.ps]

2008-10-18T10:52:42.057112Z Till Kamppeter

Fixed bug #690032: bjc600/bjc800 drivers do not work with PDF input

[base/gdevcdj.c]

2008-10-18T03:11:41.445457Z Alex Cherepanov

Fix a bug in a new reusable stream implementation introduced in rev. 8810.
Take into account unread data left in the stream buffer before refilling
the buffer. Bug 690090, customers 384, 581, 661.

[psi/zfrsd.c]

2008-10-17T22:58:21.764880Z Ralph Giles

Update properties for cups driver files.

[cups/pstoraster.in cups/pdftoraster.c cups/pstopxl.in cups/pxlmono.ppd cups/cups.mak cups/gdevcups.c cups/pxlcolor.ppd]

2008-10-17T22:57:38.635737Z Till Kamppeter

Use $(PDFTORASTER_XE) for path to compiled pdftoraster binary

[cups/cups.mak]

2008-10-17T21:46:27.567328Z Till Kamppeter

Put new files under MIT license,

[cups/pdftoraster.c cups/pdftoraster.convs]

2008-10-17T20:50:06.903656Z Igor Melichev

Fix (clist writer) : Wrong compositor cropping when a shading is entirely clipped out (continued).

DETAILS :

Bug 690106 "Regression: /unregistered in --run--" 

The recent patch for the subject is not sufficient because
an empty clipping condition cannot be anticipated in the clist writer.
To fix it we introduce a new flag gx_device_clist_writer_s::cropping_saved
especially for clist_fill_path to know whether it was called recursively
for passing an untrivial clipping path for a shading. The cropping must be restored
in the outer call iff it is set.

[base/gxclpath.c base/gxclist.c base/gxclist.h]

2008-10-17T20:27:04.052662Z Till Kamppeter

Added Ghostscript-based pdftoraster filter

[cups/pdftoraster.c cups/cups.mak cups/pdftoraster.convs]

2008-10-17T16:49:58.474885Z Till Kamppeter

Fixed several bugs, like crash if input is PDF (bug #690101), duplex not working, ...

[cups/gdevcups.c]

2008-10-17T13:44:34.259593Z Alex Cherepanov

Consider /Identity CMap compatible with any CIDFont /Ordering. Bug 690120.

[Resource/Init/gs_cidcm.ps]

2008-10-17T09:31:35.914027Z Ken Sharp

Fix (pdfwrite): ICCBased color spaces in input PDF files, /Alternate space converted to
ICCBased in output PDF file.

Details:
Bug #690038 "Regression: ghostscript cannot read ghostscript produced PDF file."

The PDF interpreter always runs with (in effect) /UseCIEColor set to true. This converts
process spaces to CIE color spaces, which are emitted in the PDF as ICCBased color
spaces when using pdfwrite/ps2write.

However, for ICCBased color spaces this caused the /Alternate space of the ICCBased
space to become another ICCBased space, which is legal but silly, and caused the GS PDF
interpreter problems.

Modified the alternate space extraction routines so that they can use the UseCIE flag in
the color handling code to prevent the base space being  substituted with a CIE space,
when the parent space is an ICCBased space.

Also discovered in passing that zfsample.c and zfunc4.c use zcolor.h but the makefile
did not have dependencies for them. Fixed.

[psi/zcolor.c psi/zfunc4.c psi/zcolor.h psi/int.mak psi/zfsample.c]

2008-10-15T17:47:00.008618Z Ray Johnston

Switch file I/O of 'opdfread.ps' to 'strmio' that supports the %rom% file system
as well as the default (%os%) file system. Bug 690074.

[base/gdevpdfu.c base/devs.mak]

2008-10-15T07:06:40.437422Z Ken Sharp

Revision 9154 accidentally left a temporary C++ style comment in place.

[psi/zicc.c]

2008-10-15T04:51:30.597312Z Michael Vrhel

Fix for bug 689961.

There was a problem with the testing to determine if a color space mapping was linear within a triangle and along a line.  The old code assumed the number of components was the same in the client and device color space.  In general this is not true, especially if we have a DeviceN color space with one color and a CMYK output device, which was the test case given.

[base/gscspace.c]

2008-10-15T01:32:43.847670Z Ralph Giles

Exclude local repository files from other version control systems
from clusterpush.

[toolbin/clusterpush.sh]

2008-10-15T01:32:39.731625Z Ralph Giles

Read git commit names if an svn revision number isn't available.

[toolbin/clusterpush.sh]

2008-10-15T01:32:33.815878Z Ralph Giles

Update the clusterpush script for the new source locations.

Previously we copied the baseline from the last ghostpcl run on the
cluster, but since the ghostpdl tree moved to the public repository it
runs in an updating directory like gs.

Also, compare return codes numerically instead of as a string.

[toolbin/clusterpush.sh]

2008-10-14T18:27:24.066580Z Ken Sharp

Fix (PS interpreter): .seticcspace leaving operand on stack.

Details:
Bug #690039 "failure to read ICC profiles generated by  
Adobe Photoshop Version 7 and 9".

ICC profiles in PostScript comments are handled by the comment 
parsing code in gs_icc.ps, using the .seticcspace operator. After
the recent change to handle colour in 'C' rather than PostScript,
the .seticcspace operator was not removing its argument from the 
operand stack.

This led to the comment processing for other purposes (specifically
pdfwrite in this case) generating errors, as the stack had been disturbed.

Altered the 'seticc' routine (called by .seticcspace) to remove the
operand from the stack. Also required altering the C colour processing
to increment the operand stack and pass the operand that way, when 
calling seticc for PDF interpretation.

[psi/zcolor.c psi/zicc.c]

2008-10-13T21:03:48.526048Z Till Kamppeter

Make Duplex with the "pxlcolor" and "pxlmono" drivers work (standard command line options "-dDuplex" and "-dTumble").

[base/gdevpx.c]

2008-10-12T06:38:18.212672Z Alex Cherepanov

Remove spurious un-definition of GlobalSubrs attribute during loading of
OpenType CFF fonts as CIDFont resources. Bug 690113, customer 1110.

[Resource/Init/gs_cff.ps]

2008-10-10T08:51:42.858031Z Ken Sharp

The update for opdfread.ps in revision 8706 missed a required routine 'putu32'.

Details:
putu32, used to update the offsets of TrueType tables in the TrueType header, uses
putu16, which was accidentally omitted. This (oddly) didn't seem to cause a problem with
testing but did for the customer. Added the missing routine.

[Resource/Init/opdfread.ps]

2008-10-09T19:48:14.487705Z Alex Cherepanov

Scale widget annotations in x and y directions to fit the BBox of the
appearance stream into the annotation rectangle. Old code considered
y direction only. Bug 690109.

DETAILS:
This implementation is mainly based on the experiments with AR5.

[Resource/Init/pdf_draw.ps]

2008-10-09T17:53:10.358436Z Ray Johnston

Increase stack size to allow GS to run on older NT versions. Thanks to Alex
for pointing this out.

[psi/dw32c.def]

2008-10-08T15:03:58.878575Z Ray Johnston

Increase stack size to allow GS to run on older NT versions. Thanks to Alex
for pointing this out.

[psi/dwmain32.def]

2008-10-08T13:40:55.237034Z Ken Sharp

Log:
Fix: ps2write. Very large TrueType fonts (>64Kb), when converted to Type 42
fonts for use in PostScript, must contain an /sfnts entry, which is an
array of strings comprising the TT font. There are restrictions on where
the original data is split to form the strings, which ps2write was not
honouring.

DETAILS:
Bug #690044 "Printer error (49,4C02) with ps2write output"
Bug #690012 "Error with ps2write output ps file when Unicode font is used"
Bug #690030 "Issue with NeverEmbed flag with ps2write device for some of the fonts"

There are five changes made to opdfread.ps in order to fix these problems:

1) The VM allocation mode used by opdfread is now local throughout, where 
   previously it was global. Judging by the number of local hacks, this 
   has frequently caused problems in the past.

2) There was a problem if a Font Descriptor contained neither a FontFile
   nor a FontFile2 entry. This was due to not embedding fonts, but caused
   the code to enter an infinte loop looking for one or the other.

3) After encountering the 'xref' in the PDF file, the code simply
   flushed the input file. This could potentially cause a problem if the
   EOF was not signalled back to the interpreter. This was theorised to
   be one of the issues, and fixed in passing, even though it was not
   in fact causing a problem.

4) The sfnts array is now built up from strings which follow the rules
   laid out in the Type 42 Font Format specification (tech note 5012)
   In particular the glyf table is now split on glyph boundaries. This
   only seems to cause problems for Adobe interpreters.

5) The 'post' table processing was modified to use an array of strings
   instead of a single string, if the table was >64Kb.

[Resource/Init/opdfread.ps]

2008-10-08T07:43:52.342922Z Igor Melichev

TT fonts : An initial implementation of GSUB.

DETAILS :

This is a partial fix for bug 689304  
"improper handling of vertical japanese text".
It works for brackets and punctuation signs orientation
when a vertical CJK text is painted with an 
Open Type font that defines a GSUB table.

The curent implementation always chooses a Format 1 
substitution table that substitutes single glyphs to single glyphs.
It doesn't account LangSys and feature tables.
Such logic is owned from the CJK patch attached to the bug 689304.
It may need further improvements.

Opposite to CJK group we implement it in C to allow
to it to work for other interpreters besides Postscript.

Interpreters may need to add an explicit call to 
the new function gs_type42_substitute_glyph_index_vertical
to involve the new functionality. This happens due to
a compatibility to PS interpreter that needs to call
the new function from the interpreter code rather than from
the graphics library.

See comments in code for more details.

[psi/zchar42.c base/gxfont42.h base/gstype42.c Resource/Init/gs_ttf.ps]

2008-10-08T05:56:27.963219Z Ray Johnston

Fix Windows stack overflow when NumRenderingThreads > 0. This was identified
during testing for bug 690108 (see comments, #1 and #2). This is a work around
as it does not address the excessive stack usage, but does work around the
problem by throwing memory at it. Bug 690198.

[base/gp_wsync.c]

2008-10-07T20:05:58.844384Z Ray Johnston

Restore function of NumRenderingThreads > 0 that was inadvertently disabled
by previous commit to this module.

DETAILS:
The segfault was fixed by making sure that the clist structure was initialized
as a 'reader', but this included setting ymin=0, which meant that the following
test for crdev->render_threads == NULL always reverted to single threaded
rendering.

Note that this also will return the error if "clist_close_writer_and_init_reader"
returns an error value (<0), which is consistent with the behavior of the
clist_get_bite_rectangle function (NumRenderingThreads==0).

[base/gxclthrd.c]

2008-10-05T17:51:25.414873Z Ray Johnston

Fix SEGV when NumRenderingThreads > 0 caused by improper clist reader phase
initialization. Bug #690108.

DETAILS:
Make sure that the clsit device is initialized to 'reader' mode before checking
the 'render_threads' element of the reader device. Prevents a SEGV when the
corresponding element of the 'writer' device structure was non-zero at the end
of the page since the render_threads table will not have been allocated and
some other (invalid) pointer would be used instead.

[base/gxclread.c base/gxclthrd.c]

2008-10-02T19:33:22.695690Z Ralph Giles

Move psromfs.mak to the interpreter source tree.

This file defines variables used by lib.mak, but the resources are all 
related to the ps interpreter, so it makes more sense to keep it there.
It is only included by top-level makefiles, so this doesn't violate
the dependency boundary.

[psi/os2.mak base/bcwin32.mak base/ugcclib.mak base/psromfs.mak psi/psromfs.mak base/macosx.mak base/watcw32.mak base/Makefile.in base/unix-gcc.mak base/unixansi.mak ijs/unix.mak psi/msvc32.mak base/macos-mcp.mak]

2008-09-30T19:01:35.905183Z Ray Johnston

Clean up a few coverity gripes (nothing important)

[base/gxclthrd.c]

2008-09-27T01:39:36.090759Z Alex Cherepanov

Set the temporary value of PDFDEBUG flag using 'gput' procedure instead of
'def' because initial PDF graphic state is represented by a read-only
dictionary. Bug 690088.

[Resource/Init/pdf_base.ps]

2008-09-25T23:48:03.662203Z Alex Cherepanov

Process invalid PDF operator QBT as Q BT .
Bug 690089, customer 384.

[Resource/Init/pdf_draw.ps]

2008-09-25T13:36:55.133901Z Igor Melichev

Fix (printer devices) : Allow retries for raster buffer allocation when BufferSpace is default.

DETAILS :

Bug 690055 "seg fault at higher resolutions". 

1. The old code implements a branch with increasing the buffer space
when a clist writer initialization fails with limitcheck and
the buffer size is default.
However the clist writer initialization never returns limitcheck,
it does return rangecheck instead. I guess the bug is in the
retry condition so I change it to rangecheck.

2. When the buffer space size is not default,
the old code crashes while setpagedevice,
if the device was opened. The clist initialization
returns with an inconsistent clist writer state 
and the device still has is_open flag set.
The new code resets is_open if the clist writer initialization
fails while setpagedevice.    

Thanks to Ray for participation.

[base/gxclist.c base/gdevprn.c]

2008-09-25T10:10:03.369546Z Igor Melichev

Fix (clist writer) : Wrong compositor cropping when a shading is entirely clipped out.

DETAILS :

Bug 690078 "clist error in fts_41xx.xps and fts_39xx.xps".

clist_fill_path implements a special processing of a clipping path for shadings.
It falls back to gx_default_fill_path, which accounts both filling path and clipping patch.
Doing so, gx_default_fill_path passes the clipping path to the clist writer
as a high level object with calling clist_fill_path with a NULL color.

However the 2 calls to clist_fill_path differently processed the
case of the empty clipping : the first call did not return immediately
and restored the compositor cropping interval after returning from gx_default_fill_path, 
but the second call does return immediately and did not save the interval before
the clipping path is written. Thus the interval was restored to a wrong state 
that occasionally left from a preceeding filling operation.

This patch moves the check for empty clipping ahead the main
processing in clist_fill_path, so that the 2 calls do same thing
about the skipping of an empty clipping.

[base/gxclpath.c]

2008-09-24T11:07:46.268855Z Ralph Giles

Initial support for aes decryption streams.

Details:

This adds an AESDecode filter to the interpreter which wraps the
new aes stream implementation.

[psi/zfaes.c psi/int.mak]

2008-09-24T11:07:43.989804Z Ralph Giles

Initial support for aes decryption streams.

Details:

This adds support for compiling the xyssl aes implementation added
in r8870, and a stream library wrapper which calls it.

Note that while an s_aes_set_key() procedure is provided to set a
key in an allocated stream state, it merely stores the key, and the
actual allocation of the aes_context structure and initialization
with the key happen the first time the stream's process() method is
called.

This is because a typical call to filter_read() in the interpreter
binding will end up memcpy()ing this to its own separately allocated
stream state. This preserves any static initialization performed by
the caller, such as passing in the key, but the xyssl aes_context
structure includes an internal pointer, and this is not updated when
the state is copied.

The internal pointer provides an indirect reference to support optional
storage of the sbox in secure memory. We're not using this feature, so
we could remove it, or update the pointer ourselves when our process()
method is first called. However, working around the issue by delaying
all opaque initialization until the stream is working is more robust.

[base/saes.c base/lib.mak base/saes.h]

2008-09-23T18:57:30.153977Z Igor Melichev

Fix (PS interpreter) : Incorrect data in garbager descriptor for reusable stream state.

DETAILS :

The bug was introduced in rev 8810.
It defines a wrong offset for a relocating pointer.
The reason is an inaccurate copy-and-replace coding.
Fortunately the offset pointed to a static data pointer,
which the garbager filtered out with an error message.

[psi/zfrsd.c]

2008-09-22T10:56:52.199700Z Ken Sharp

Remove a number of no longer required includes from the source, and update the makefile to remove the dependencies.

Local regression testing shows no differences, local builds correctly generate executable.

[base/gdevpdfm.c base/gdevpsdp.c base/gdevpdt.c base/gdevpdfo.c base/gdevpdf.c base/gdevpsdu.c base/gdevpdfd.c base/gdevpdfu.c base/gdevpdfv.c base/gdevpsdi.c base/gdevpdfg.c base/devs.mak]

2008-09-19T23:31:25.043936Z Ralph Giles

Fix a double fclose().

fuzzy_diff_images() doesn't open the files it reads from, so it should
not close them when cleaning up. The caller takes care of this on line
764, right after calling fuzzy_diff_images().

[toolbin/tests/fuzzy.c]

2008-09-19T21:45:10.190751Z Ralph Giles

Correct two typos in error message strings.

[toolbin/tests/fuzzy.c]

2008-09-19T21:45:09.139047Z Ralph Giles

Move the freport initizialization out of fuzzy_diff_images() to silence
a gcc uninitialized variable warning.

[toolbin/tests/fuzzy.c]

2008-09-19T21:45:08.203062Z Ralph Giles

Remove trailing whitespace.

[toolbin/tests/fuzzy.c]

2008-09-19T21:45:06.338528Z Ralph Giles

Fix a gcc warning. Bug 690054.

Details:

The gs_note_error() macro can't be called like a normal function. In
non-debug builds it reduces to its argument, generating an empty
statement. Placing it after a return or on the right hand side of an
assignment prevents this warning.

[base/gdev8510.c]

2008-09-19T16:22:32.262870Z Ralph Giles

Include our math_.h wrapper instead of math.h.

Details:

We have header_.h wrappers for most system headers which include various 
platform-specific #ifdef trees to ensure the symbols we use are defined.

Except for some of the bootstrap code, these wrappers should always be 
used instead of the system headers.

[psi/zcolor.c psi/int.mak]

2008-09-19T16:08:02.308202Z Ralph Giles

Also remove gscolor1.h from the zcolor.c dependency list.

[psi/int.mak]

2008-09-19T13:44:55.520555Z Ken Sharp

Remove gscolor1.h. We no longer use gs_setcmykcolor here and so this header is not required.

[psi/zcolor.c]

2008-09-19T00:01:51.675092Z Ralph Giles

Use a portable path separator in gs.mak.

[base/gs.mak]

2008-09-18T23:55:26.486186Z Ralph Giles

Remove a spurious $(_I) and add use portable $(D_)...$(_D) for defines
as needed by the openvms build. Bug 690084.

[base/libpng.mak base/devs.mak]

2008-09-18T23:50:07.487730Z Ralph Giles

Fix typos in third-party library paths introduced in r6514. Bug 690084.

[base/openvms.mmk]

2008-09-18T23:31:16.150062Z Ralph Giles

Additional leading space characters before colons in makefiles. Bug 690084.

[base/lib.mak contrib/contrib.mak]

2008-09-18T20:32:08.326447Z Ralph Giles

Space makefile colons for the benefit of VMS. Bug 690084.

OpenVMS supports a basic makefile syntax, but requires a space on both 
sides of the dependency colon. We try to maintain this in our 
cross-platform makefiles.

[contrib/contrib.mak base/contrib.mak base/devs.mak]

2008-09-18T18:23:22.617130Z Ralph Giles

Move time_.h to the top of the include list.

[base/mkromfs.c]

2008-09-18T00:37:45.093298Z Ralph Giles

The SunPro compiler doesn't handle variable length arrays in structs.

Bug 689079. Patch from Jon Peatfield.

[contrib/opvp/opvp.h]

2008-09-18T00:37:43.189925Z Ralph Giles

Clean up whitespace in the opvp device source.

[contrib/opvp/opvp.h contrib/opvp/gdevopvp.c]

2008-09-18T00:37:41.259902Z Ralph Giles

Fix: default to MITER line joins in the opvp device. Bug 689079.

The previous default was BUTT, which is a line cap, not a join. This
looks like it was a cut-and-paste error. Patch from Jon Peatfield.

[contrib/opvp/gdevopvp.c]

2008-09-18T00:37:38.655050Z Ralph Giles

Fix: don't treat char as unsigned in the opvp device. Bug 690079.

[contrib/opvp/gdevopvp.c]

2008-09-18T00:12:11.086491Z Ralph Giles

Enable jasper assembly optimizations with _MSC_VER instead of _WIN32 so the MSVC-specific inline code won't be passed to gcc in mingw builds.

Bug 690070.

[jasper/src/libjasper/jpc/jpc_qmfb.c]

2008-09-16T00:29:06.813229Z Ralph Giles

Remove an inadvertent semicolon in gs_throw_code, added in r9037.

[base/gserror.h]

2008-09-14T12:20:56.043501Z Alex Cherepanov

Allocate missing FontInfo dictionary in a matching global or local memory and
use .forceput to override read-only status of the font directory. Bug 690063.

[Resource/Init/pdf_font.ps]

2008-09-13T20:22:25.237944Z Ralph Giles

Move the dxmain.c and dxmainc.c front ends to the interpreter source 
directory.

[base/dxmain.c psi/dxmain.c base/unix-dll.mak base/dxmainc.c psi/dxmainc.c]

2008-09-12T08:05:54.684727Z Ken Sharp

The CIEBasedDEF/DEFG colour space validation did not insist that the dictionary contain a
/Table entry, which is a required entry. It also did not limit the numeric values in the
/Table array to integers, reals are not allowed.

[psi/zcolor.c]

2008-09-11T16:03:58.760444Z Ray Johnston

Add support for passing the requested number of copies through to the PXL
output file. Tested on an actual HP printer.

[base/gdevpx.c]

2008-09-10T21:35:24.802228Z Ralph Giles

Change two more printf(%x) uses with pointers to use %p.

Update copyright.

[base/gxclmem.c]

2008-09-10T21:33:26.724052Z Ray Johnston

Replace non-standard %P with %p for pointer printing.

[base/gxclmem.c]

2008-09-09T21:00:54.348833Z Ralph Giles

Ask gcc to warn about declarations beyond the start of a block.

[base/configure.ac]

2008-09-09T20:31:37.982033Z Ralph Giles

Move variable declarations to the top of blocks in the fontconfig 
support code.

Also fixes a gcc warning about passing int 0 instead of NULL to 
terminate an argument list.

[base/gp_unix.c]

2008-09-09T18:45:27.627887Z Ralph Giles

Add a space to the product name between the family and release names.

[base/gscdef.c]

2008-09-09T17:48:26.542519Z Ralph Giles

Move some interpreter headers from base to psi.

These were missed in the original merge of the reorganization patch.
Also, add missing makefile dependencies for these new headers.

[base/zcolor.h base/zicc.h psi/zcolor.h psi/zicc.h base/zcie.h psi/zcie.h psi/int.mak]

2008-09-09T14:33:31.847337Z Ken Sharp

Henry's coverage test revealed that a couple of 'belt and braces' checks in the RGB->HSB
conversion were impossible to trigger. Removed those checks.

[psi/zcolor.c]

2008-09-06T09:57:38.114441Z Ken Sharp

Address some more issues raised by Coverity. Check return values in some places which were
not previously checked, initialise some variables, and remove some dead code.

Local regression testing of pdfwrite shows no differences.

[base/gdevpdtd.c base/gdevpdtt.c base/gdevpdte.c base/gdevpdtf.c base/gdevpdfe.c base/gdevpdtw.c base/gdevpdti.c]

2008-09-04T15:46:56.923276Z Igor Melichev

Fix : Divide gdevp14.c into 2 modules.

DETAILS :

This change is syntactically equivalent.
The purpose is to minimize dependencies between projects.
The new module gxblend1.c keeps color blending algorithms moved from gdevp14.

[base/gdevp14.c base/lib.mak base/gdevp14.h base/gxblend.c base/gxblend1.c base/gdevdevn.h base/gxblend.h]

2008-09-04T14:06:17.707413Z Igor Melichev

Fix (graphics) : Preovide a right check for incorrect call to pdf14_pop_transparency_group.
 
DETAILS :

This patch doesn't change behavior with regular runs.
In hypothetic cases, when .entransparencygroup is called with no
L
due to unreferencin null pointer.

[base/gdevp14.c]

2008-09-04T10:05:54.831940Z Ken Sharp

More minor issues reported by Coverity. An unchecked return code from cos_dict_find_c_key,
and some dead code.

[base/gdevpdfm.c]

2008-09-04T10:04:10.193139Z Ken Sharp

A couple of issues detected by Coverity. Firstly an error condition could lead to a file being
left open. Secondly a call to pdf_restore_viewer_state which didn't check the return value.

[base/gdevpdfu.c]

2008-09-04T10:02:04.794387Z Ken Sharp

More very minor dead code removal, again as noted by Coverity.

[base/gdevpdtb.c]

2008-09-04T10:01:12.562540Z Ken Sharp

Remove some dead code from cmap handling, as noted by Coverity.

[base/gdevpdtc.c]

2008-09-04T09:59:11.733313Z Ken Sharp

Check the return code from pdf_write_resource_objects when closing a page. Fixes Coverity
warning.

[base/gdevpdf.c]

2008-09-03T20:49:13.486158Z Ray Johnston

Add protection for the "finish" exit point for potential (no longer exists
since rev 9062) case when f==NULL when code >= 0. Belt and suspenders couldn't
hurt to improve maintainability (prevent future problems). Original problem
reported by Coverity analysis.

[base/gxclmem.c]

2008-09-03T12:20:27.869178Z Igor Melichev

Fix : gcc compiler warnings (continued).

DETAILS :

Repair a file broken due to Far 1.70 editor glitch on Vista.

[psi/zfunc4.c]

2008-09-03T11:42:35.783010Z Igor Melichev

Fix : gcc compiler warnings.

DETAILS :

This patch fixes only those ones which either were approved or belong to my ownership.

[base/gxclread.c base/gxpcopy.c base/gxclpage.c psi/zfunc4.c base/gxclutil.c base/gxclmem.c base/lib.mak base/gxiscale.c base/gxclmem.h base/gdevpdtd.c psi/int.mak psi/zfsample.c base/gdevpdte.c base/gximage1.c base/gsovrc.c base/gdevprn.c base/gxstroke.c psi/zfunc.c base/gspath1.c base/gxshade6.c psi/zfrsd.c base/gxclpath.c psi/zfunc.h psi/igcstr.c base/mkromfs.c base/gstype42.c base/gdevdsha.c base/gxfill.c base/gxclrast.c]

2008-09-02T18:37:07.959806Z Till Kamppeter

Fixed small bug in the patch to add a PJL command for setting the resolution to
the pxlmono/pxlcolor drivers (rev 9060).

[base/gdevpxut.c]

2008-09-02T09:06:41.787945Z Till Kamppeter

Let pxlmono/pxlcolor drivers add resolution setting to the PJL header. Printers need the PJL command to set the resolution (see bug 689230). Now the printing resolution can be easily controlled with the "-r" command line option.

[base/gdevpxut.c]

2008-09-01T17:03:20.988497Z Alex Cherepanov

Fix incorrect error code test in the calculator function validation
procedure.

[psi/zfunc4.c]

2008-09-01T16:53:43.689721Z Ken Sharp

Resolve another gcc compiler warning. The test was incorrect, now it is correctly taking the
text render mode into account.

Local regression testing shows no differences.

[base/gdevpdts.c]

2008-09-01T08:49:44.722693Z Ken Sharp

Fix a warning from older versions of gcc. Spotted by Russell Lang when doing OS/2 build. 
Oddly, newer versions of gcc don't spot this, even though the code was technically
redundant.

Also remove some commented out code that should not have been present, and fix a couple
of warnings produced by recent versions of gcc regarding unused local variables and code.

Local regression testing exhibits no differences.

[base/gdevpdtt.c]

2008-08-31T00:28:20.047781Z Russell Lang

Add a makefile target for a Windows source zip file, 
used in building a release.

[psi/winint.mak]

2008-08-30T23:23:04.017387Z Alex Cherepanov

Make PDF interpreter run our /Install procedure after the user's procedure
because: (1) PDF interpreter caches the CTM, (2) the user's procedure may
replace CTM by calling setmatrix. Bug 689914, customer 770.

[Resource/Init/pdf_main.ps]

2008-08-30T14:07:29.736170Z Igor Melichev

Fix (PS interpreter) : Wrong dependencies in makefile.

[psi/int.mak]

2008-08-30T13:38:27.563236Z Russell Lang

Fix gcc warning on OS/2.

[base/gdevdsp.c]

2008-08-30T13:31:29.235544Z Russell Lang

Fix the OS/2 build after the source reorganization.
Remove the os2pm device and the old DLL interface for OS/2, 
to avoid direct links from the graphics library into the 
PS interpreter.

[base/gp_os2.c base/os2.mak psi/dpmain.c psi/gsos2.def base/gsos2.icx doc/Develop.htm psi/gsos2.rc base/pcwin.mak base/dpmain.c base/gsos2.def psi/os2.mak base/mkromfs.c base/gsos2.rc psi/gsdllos2.h psi/gsos2.icx base/gp_os2fs.c base/gdevpm.c psi/gsdll2.def base/devs.mak]

2008-08-29T19:47:13.384972Z Ralph Giles

Update the Visual Studio project file generator for
the new source locations. Untested.

[toolbin/msvcxml.bat]

2008-08-29T18:46:21.860372Z Ralph Giles

Split the source tree into two new directories.

PSSRC files are now in 'gs/psi'.
GLSRC files are now in 'gs/base'.

This is to facilitate build modularization and merging in the ghostpdl 
tree.

NOTE: msvc32.mak is now in psi, not src.

[/trunk/ghostpdl/language_switch/pspcl6_msvc.mak /trunk/ghostpdl/main/pcl6_gcc.mak src /trunk/ghostpdl/tools/check_deps.py doc/Develop.htm psi /trunk/ghostpdl/svg/svg_gcc.mak /trunk/ghostpdl/xps/xps_msvc.mak /trunk/ghostpdl/main/pcl6_msvc.mak /trunk/ghostpdl/doc/ghostpdl.tex /trunk/ghostpdl/psi/psitop.c doc/API.htm doc/Issues.htm /trunk/ghostpdl/svg/svg_msvc.mak /trunk/ghostpdl/language_switch/pspcl6_gcc.mak doc/Make.htm doc/Drivers.htm base autogen.sh doc/Release.htm doc/C-style.htm /trunk/ghostpdl/doc/ghostpdl.txt /trunk/ghostpdl/xps/xps_gcc.mak]

2008-08-28T19:47:00.816950Z Ralph Giles

Replace 3d with 3rd in the documentation and regularize '3(r)d party' as 
'third-party'. Bug 690004.

[doc/Use.htm doc/Lib.htm]

2008-08-28T02:40:07.463083Z Ralph Giles

Use the new gs_rethrow_code() macro in svgwrite.

[src/gdevsvg.c]

2008-08-28T02:40:06.379728Z Ralph Giles

Add gs_throw_code() and gs_rethrow_code() macros for use in situations
where the normal error string does not fit or is redundant.

[src/gserror.h]

2008-08-28T02:40:04.423296Z Ralph Giles

Fix some code style issues in the svgwrite device.

We can't use gs_note_error() as we were because it returns the error
code which generates an empty statement warning with gcc. Use gs_throw()
instead for now.

[src/gdevsvg.c]

2008-08-28T00:36:33.257400Z Ralph Giles

Update warnings policy; we agreed to fix all warnings.

[doc/C-style.htm]

2008-08-28T00:03:40.520992Z Ralph Giles

Document the motivation for a source style item.

Details:

There has been some controvesy over the rule that single-statement 
bodies of control structs must be on their own line. Specifically:

  if (code < 0)
    return code;

instad of:

  if (code < 0) return code;

despite the latter being less obtrusive for common error checks.

Several developers have requested this because it allows setting a 
breakpoint directly on the return statement instead of a conditional 
return on the conditional line, or a breakpoint at the return inside
the single source line. This is therefore a practical issue, not just
one of readability and style.

[doc/C-style.htm]

2008-08-27T17:27:24.986727Z Ralph Giles

Fix more html conformance problems with the documentation.

[doc/Ps2ps2.htm doc/Fonts.htm doc/Use.htm doc/Ps2pdf.htm doc/Develop.htm doc/Deprecated.htm doc/Install.htm doc/API.htm doc/Issues.htm doc/Make.htm doc/Drivers.htm doc/Release.htm doc/C-style.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm]

2008-08-27T02:57:23.718740Z Ralph Giles

Remove Humor.htm.

The joke has gotten old, and blogs are a better medium for this sort of 
thing.

[doc/Humor.htm doc/Readme.htm]

2008-08-27T02:16:43.113337Z Ralph Giles

Remove the obsolete HTML style guidelines.

We no longer expect readers to look at the raw html in a text editor. 
Documentation should declare its format specification and conform to it, 
attempting to match local style where appropriate.

[doc/Htmstyle.htm doc/Readme.htm]

2008-08-27T02:14:10.447789Z Ralph Giles

Replace the awkward <b><tt> construction with css-styled <code> elements.

[doc/History7.htm doc/Fonts.htm doc/Projects.htm doc/Ps2ps2.htm doc/Use.htm doc/Readme.htm doc/Develop.htm doc/Ps2pdf.htm doc/Deprecated.htm doc/Source.htm doc/Helpers.htm doc/Psfiles.htm doc/Lib.htm doc/Install.htm doc/Htmstyle.htm doc/API.htm doc/gs.css doc/DLL.htm doc/Make.htm doc/Drivers.htm doc/Unix-lpr.htm doc/Commprod.htm doc/C-style.htm doc/Ps-style.htm doc/Release.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm doc/Ps2epsi.htm]

2008-08-26T21:50:26.926408Z Ralph Giles

Cast away signed/unsigned char warnings in gdevsvg.

Patch from Igor Melichev. Also cleaned up some trailing whitespace.

[src/gdevsvg.c]

2008-08-26T21:40:55.546109Z Ralph Giles

Remove references to bits64 from the source style documentation. It is 
superceeded by the stdint types.

[doc/C-style.htm]

2008-08-26T15:59:38.718117Z Igor Melichev

Fix (PDF interpreter) : Implementing a temporary option for development needs of images with soft mask. 

DETAILS :

It doesn't chamge the behavior for regular runs.
The new temporary option is for development purpose only.
It will be removed after the complete implementation of images with soft mask is done.

[Resource/Init/pdf_draw.ps]

2008-08-26T15:31:03.416051Z Igor Melichev

Fix (PDF interpreter) : A wrong comment about procedure operands for is_big_mask .

DETAILS :

It changes a comment only.

[Resource/Init/pdf_draw.ps]

2008-08-26T07:02:55.610521Z Igor Melichev

Fix (graphics) : Scanline algorithm missed pixels at horizontal boundaries.

DETAILS :

Bug 689402 "Regression: differences in dina3_watermark.pdf".

The defect looks as an unimplemented branch.
which persists since Ghostscript 8.00 released on Decebmer 2002
or longer. We could get a similar problem when runnung Bug687832.pdf
with Ghostscript 7.04 (it can't handle dina3_watermark.pdf),
and our reading of its code shows that the problem presents in it.
So the problem is really antique.
 
The bottom of the problem is that fill adjustment was not applied 
to some horizontal segments. Due to that some pixel centers are not covered 
when they must be.

[src/gxfillsl.h]

2008-08-23T16:39:21.950258Z Alex Cherepanov

Fix 6 Coverity warings about local variables hiding function arguments
by renaming local variables.

[src/gsbitops.c]

2008-08-23T01:05:47.610764Z Russell Lang

Remove reference from Windows image window code back to PostScript interpreter,
to allow the image window code to be used with non-interpreter builds.

[src/dwimg.h src/winint.mak src/dwmain.c src/dwmain.rc doc/Develop.htm src/dwmainc.c src/dwmain.h src/dwimg.c src/dwres.h]

2008-08-22T16:34:36.763761Z Ralph Giles

Move the dw source files from GLSRC to PSSRC. Items in GLSRC shouldn't 
depend on items in PSSRC. This is in preparation for the code 
reorganization.

Details:

A number of these files, dwtext, dwtrace, and with some modifications 
dwimg don't actually have PSSRC dependencies, but it's easier to keep 
all the files built by winint.mak there for now. They can be moved back
into the base library later when they're useful for other builds.

[src/winint.mak]

2008-08-22T01:13:28.560292Z Ralph Giles

Remove an unnecesary iapi.h include.

[src/winint.mak src/dwimg.c]

2008-08-22T01:11:24.167807Z Ralph Giles

Remove trailing whitespace.

[src/dwimg.h src/dwimg.c]

2008-08-21T23:26:24.907412Z Ralph Giles

Add a missing return value check. Coverity issue 1847.

[src/zcolor.c]

2008-08-21T22:55:00.562927Z Ralph Giles

Correct a double free introduced in r9005.

[src/gp_unix_cache.c]

2008-08-21T21:51:24.194924Z Ralph Giles

Remove trailing whitespace.

[src/ztrans.c]

2008-08-21T08:35:09.363063Z Ken Sharp

Submission for revision 9008 initialised the wrong 'pfn' variable. 

Details:
Accidentally changed the use in 'zbuildfunction' instead of 'buildfunction'. Correcting.

[src/zfunc.c]

2008-08-21T08:33:31.319105Z Ken Sharp

Fix some more Coverity warnings

Details:
Two places where a return value (from names_ref) was not being checked, one inadvertent
piece of dead code (duplicating a previous error check) and one genuine case of a variable
which could potentially be used uninitialsed.

[src/zcolor.c]

2008-08-21T08:28:49.451522Z Ken Sharp

Silence an 'uninitialised variable' warning from Coverity.

Details:
Function initialisation is a bit round about. We pass a function pointer to
make_sampled_function, which assigns it to a local variable. That variable is passed to
gs_function_Sd_init, which immediately zeros it....

Since the pointer is never actually used, setting it to NULL should silence the warning.

[src/zfunc.c]

2008-08-20T23:58:43.536642Z Ralph Giles

Replace an abs() call with our any_abs() macro. Also remove an 
unnecessary math_.h include.

Details:

A call to abs() was added in r8942. Technically the prototype for this 
is in stdlib.h, but it's a built-in in most compilers so this didn't 
raise a warning. We do include stdlib.h elsewhere, usually for qsort() 
or malloc(), but abs() is only called from comment pseudo code; in 
practice the any_abs() macro or fabs() from math.h are used instead.
Because this isn't in an inner loop, speed isn't important, so we prefer 
the macro to a system header include for consistency.

Sine the beginning of repository history, gdevbit.c has included math.h, 
but I don't see any math library calls now, so it as been removed.

[src/gdevbit.c src/devs.mak]

2008-08-20T23:22:49.144680Z Ralph Giles

Check for and propagate failures to find matching component indexes in 
jpx streams.

[src/sjpx.c]

2008-08-20T22:09:49.649774Z Ralph Giles

Further cleanups to the unix persistent cache error handling.

[src/gp_unix_cache.c]

2008-08-20T21:32:28.795836Z Ralph Giles

Fix memory and file handle leaks in the unix persistent cache error 
handling. Also document that it is not re-entrant.

[src/gp_unix_cache.c]

2008-08-20T19:46:20.907096Z Ralph Giles

Remove trailing whitespace.

[src/gp_unix_cache.c]

2008-08-20T19:09:44.615235Z Ralph Giles

Add a cast in svgwrite to be explicit that we're only using the lower 24 
bits of the color index.

[src/gdevsvg.c]

2008-08-20T18:26:10.369143Z Ralph Giles

Fix __func__ on the default (non-C99) gcc build.

Details:

__func__ is a variable in C99. The earlier __FUNCTION__ is a magic 
preproccessor define in MSVC 7 and later, so the #if defined() clause 
enabled it. However, in GCC it is a magic string literal instead and so 
this clause did not enable it. Therefore we add an explicit check for 
the appropriate GCC version and define the same substitution for that 
compiler.

[src/gserror.h]

2008-08-20T01:54:36.820847Z Ralph Giles

Add the svgwrite device to the default windows build.
Bug 690028.

[src/msvc32.mak]

2008-08-19T04:07:40.862102Z Ralph Giles

Remove the jasper dependency from jpxtopdf. It's straightforward to 
parse the image header ourselves.

[toolbin/jpxtopdf.c]

2008-08-17T12:31:25.491176Z Alex Cherepanov

Fix a bug in error checking code introduced in the rev. 8996 in pamcmyk32
device. Bug 689583.

[src/gdevpbm.c]

2008-08-17T06:19:35.130662Z Alex Cherepanov

Check return values from all stdio functions in all pnm drivers and propagate
error codes upwards. Bug 689583.

[src/gdevpbm.c]

2008-08-17T01:19:23.099945Z Alex Cherepanov

Add one more NMAKE version recognized as MSVC 7.
Bug 689816, customer 351.

[src/msvc32.mak]

2008-08-16T04:18:20.474141Z Alex Cherepanov

Work around a bug in a PDF file produced by "Nitro PDF Driver". Assume invalid
operator '-' to be a number 0. Bug 690012,

[Resource/Init/pdf_main.ps]

2008-08-16T02:00:51.387588Z Alex Cherepanov

Fix parsing of large embedded TrueType fonts by ps2write header: (1) read the
file into multiple strings for sfnts array. (2) use multiple reads to skip
over large parts of the file. Also modify Type42 font reader to allow TrueType
objects to span sfnts string boundaries. Bug 690012.

[src/gxttfb.c Resource/Init/opdfread.ps]

2008-08-14T17:54:06.399403Z Alex Cherepanov

Use GNU iconv.h header in compatibility mode unless we link with GNU libiconv.
This is needed for compiling gs with gcc under HP-UX 11.11.

DETAILS:
gdevopvp.c uses some basic functionality from iconv library but none of GNU
extensions. So the native implementation is searched first.

GNU header uses different names in the library and defines some macros to map
iconv* names to GNU libiconv* names.

gcc looks for GNU version of iconv.h first, which requires a compatibility
flag to link with the native libraries.

So the compatibility flag is set when iconv* functions are not found but
libiconv* functions are found.

[src/configure.ac contrib/opvp/gdevopvp.c]

2008-08-13T01:56:36.856132Z Ray Johnston

Update the fonts to those that the nightly and cluster regressions have
been using all along. The -Ifonts in the regression script was causing
the contents of Resource/Font to be ignored. These fonts are the std-8.11
version.

Note we probably next need to move to the newer version of these fonts
with the metrics fixed, but this is a first step.

DETAILS:
These are files that were part of the distribution 8.11 files that really
can't live in the Resource/Font directory since some applications or
test files will enumerate (with 'resourceforall') the directory and will
get errors if files are there that are not fonts.
___________________________________________________________________________
				README:
This is release 1.0.7pre22 of Valek Filippov's improved versions of the URW
type 1 font collection, repackaged for distribution with Ghostscript.

Cyrillized free URW fonts.

These fonts were made from the free URW fonts distributed with ghostcript.
There are NO changes in the latin part of them (I hope).
Cyrillic glyphs were added by copying suitable latin ones
and painting oulines of unique cyrillic glyphs in same style as the others.
For all modification pfaedit was used.
The license for result is (of course) same as for original fonts,
i.e. GPL with an exception that you can put these fonts in your own non-GPLed
documents. (Looks like LGPL from my point of view =).

The "sources" of these fonts in the native pfaedit format are available
at ftp://ftp.gnome.ru/fonts/sources

The great font editor pfaedit is available at http://pfaedit.sf.net.
That page also includes some links to fonts created by
George Williams -- the author of pfaedit.

Acknowledgements:
I would like to thank George Williams, the pfaedit's author and developer.
He is the most bug-reporter/feature-requester friendly developer
I ever saw in my not so short life. At some moment in the future
I must write a book about him: "George Williams and my best experience
in bug-reporting." George also greatly helped me bug-hunting these fonts,
explained to me some very important things about fonts and font design,
quickly adopted pfaedit to my needs (or pointed me to The Right Place in
documentation where I found better way of doing things).

I would like to thank Alexey Novodvorsky (aka AEN), who
pointed me to pfaedit and George Williams' fonts, explained
The Task to me. He is also one of the main participators in the
development of Sysiphus -- free repository of free software.
I didn't loose my time for compiling/installing and supporting
my linux box coz I used the result of Sysiphus developers' works.

I would like to thank Sergey Vlasov, who tested these fonts and reported
about bugs. Also he help me to make some bug-reports to George about
pfaedit bugs.

I would like Dmitry 40in, who did big QA for some font outlines, drawn some glyphs,
and explain some The Truths for me.

I would like to thank Vlad Harchev (aka hvv), who
proofread this text for me.

Also I have to thank RMS for GPL and URW for releasing the fonts
under it.

Thank you very much!
Valek Filippov frob@df.ru
(C)opyLeft 2001
______________________________________________________________________________________
				TODO:
- fix all missed glyphs.
- change suitable glyphs with references.
- improve bearings of glyphs (thanks Dmitry 40in who pointed me to this)
- improve outlines of some cyrillic glyphs 
______________________________________________________________________________________
				Changelog:
2002-11-22  Valek Filippov  <frob@df.ru>

    Fixed bug that broke printing from QT.
    
2002-11-16  Valek Filippov  <frob@df.ru>

   Fixed some cyrillic (russian) glyphs in NimbusMono.
   NimbusMono Ascend/Descend were changed to match the visible
   size of the other font if same point-size is used.

2002-10-12  Valek Filippov  <frob@df.ru>

   Regenerated coz I screwed up UIDs.
   Partly applied Owen Tailor tweaks.
   (Really GWW changed pfaedit autohinter after OT sugggestion,
   so other OT tweaks are aoutomade by pfaedit)
   
2002-08-17  Valek Filippov  <frob@df.ru>

    Regenerated from 9-aug pfaedit version.
    Mostly for testing of new cubic->quad bezier conversion.

2002-07-22  Valek Filippov  <frob@df.ru>

    Regenerated from 22-07 pfaedit version.
    I still haven't enough time for correct serbian glyphs from Danilo
    integration =(

2002-05-19  Valek Filippov  <frob@df.ru>

    Regenerated from 18-05 pfaedit version.
    Restored original UIDs.
    Made otf versions again =)

2002-03-06  Valek Filippov  <frob@df.ru>

    Added pfms. Forced using of original kerning.
    d* and s* files were missed (fixed now).

2002-03-04  Valek Filippov  <frob@df.ru>

    Improved Bookman and Gothic. All fonts were regenerated
    (fix 'Delta', improved hinting). pfms are temporary excluded.

2002-02-03  Valek Filippov  <frob@df.ru>

    Improved Bookman Light/DemiBold. At 2002-01-07 I put
    non latest version of Chancery -- fixed.

2002-01-18  Valek Filippov  <frob@df.ru>

    All fonts regenerated again, coz AEN found bug in names translation.
    NimbusRomNo9-Regu greatly improved. NimbusRomNo9-Bold, NimbusSans{Cond}-{Regu,Bold}
    partially improved.

2002-01-07  Valek Filippov  <frob@df.ru>

    Bookman improved. Chancery added.

2002-01-04  Valek Filippov  <frob@df.ru>

    All fonts were regenerated.
    TTF-instructions were improved, some non-russian cyrillic
    fixed, "fi" and "fl" ligatures ligaturized where were not.
    Implemented some changes that Dmitry suggested,
    NimbusMono-Regular is partially made by him.
    Added COPYING. Generated pfm-files.
    Added fonts.dir and fonts.scale from gnu-gs-fonts.
    
2001-12-14  Valek Filippov  <frob@df.ru>

    Full tarball was made.

    NimbusRomNo9 regenerated. Added 'numero sign',
    'infinity' and 'Omega' (in Regu -- by Dmitry 40in).
    OTF versions removed until the best time.
    Dmitry supposed that URW'd presented 'beta'-version
    of fonts to community, coz bearings for original URW
    are not perfect. 1st attempt to fix it.  

2001-12-12  Valek Filippov  <frob@df.ru>

    Schoolbook extended to 'val3' and regenerated.
    Palladio extended to 'val3' and regenerated.
    Bookman extended to 'val3' and regenerated.
    Gothic extended to 'val3' and regenerated.
    Some glyphs still missed.       

    NimbusMono regenerated with modern pfaedit
    (bug with xterm fixed). Some 0x4** glyphs fixed.
    Added "number sign" and "infinity". Thanks to
    Dmitry 40in and Anton Zinoviev who criticized me
    about it. 

2001-12-08  Valek Filippov  <frob@df.ru>

    Added updated version of NimbusSansCond.
    Changes same like for NimbusSans
    (except: otf version not added).
    
2001-12-07  Valek Filippov  <frob@df.ru>

    Added updated version of NimbusMono.
    (Lat Ext-A, full 0x400 except 'glagolic', some chars are still
     missed; ttf hinting regenerated; otf version added;
     'Cyr De, de, L, l, Ch, ch' fixed).

2001-12-06  Valek Filippov  <frob@df.ru>

    Added updated version of NimbusSans.
    (Lat Ext-A, full 0x400 except 'glagolic', some chars are still
     missed; ttf hinting regenerated; otf version added;
     'Cyr De, de, L, l, Ch, ch' fixed).
    
2001-12-05  Valek Filippov  <frob@df.ru>

    Kern pairs from original URW had missed at the 11-nov version.
    Added OpenType version of fonts.

2001-11-11  Valek Filippov <frob@df.ru>
    
    NimbusRomanNo9
    Regular: added all uni0400 (except ancient cyrillic /glagolic?/).
             04bc-04bf, 04a8-9, 04d8, 04da still missed.
	     added all glyphs from Lat Ext-A (uni0100-017F) that was missed
	     in original URW (45 glyphs).
	     Most of accented chars and part of cyrillics changed
	     with references.
	     TTF hinting regenerated with modern PfaEdit.
    Bold: same but also missed 0494, 04a6, 04c3
    Italic, BoldItalic: same but missed many non-russian cyrillics.
______________________________________________________________________________________
				README.tweaks
Nimbus Sans L Regular, Nimbus Mono L Regular, Nimbus Mono L Oblique
all come from a more recent version of the cyrillic URW fonts.

The hints on Nimbus Sans Regular have been modified in the
following ways:

25 June 2002

 - Added ghost hint to the top of 4 to keep it from being
   taller than the other digits.
 - Reduced the width of the left stem hint for H to 83
   (probably no real differences)
 - Changed the StemSnapV values from [78 85 94] to [78 83 92]
   (and fixed up StdVW accordingly)
   This corresponds to the values in the font (which are 83/93
   for lower case and upper case stems) better and makes
   the width-88 stems on M and N snap to to upper case 
   widths not lower-case widths.

29 June 2002

 - Removed odd vertical stem hints (width of horizontal
   stems) from f, F, t, E, yen sign, fi ligature, 
   fl ligature, AE ligature, R, Lstroke, OE ligature,
   lstroke, E" variants, t, variants, Eth, Dstoke, etc.
 - Fixed hints on 1 to be two ghost hints instead of one
   hint the height of the font
 - fix bottom stem of u to have integer coordinates
 - fixed hints on |
 - fixed hints on inverted exclamation mark

The hints on Nimbus Mono L Oblique have been modified in the
following ways:

 - Removed vertical stem hints from horizontal serifs on
   roman characters.
  
Owen Taylor

[Resource/Font/URWPalladioL-BoldItal Resource/Font/NimbusSanL-Bold Resource/Font/NimbusRomNo9L-Medi Resource/Font/Dingbats Resource/Font/URWChanceryL-MediItal Resource/Font/CenturySchL-Roma Resource/Font/NimbusMonL-Bold Resource/Font/NimbusRomNo9L-MediItal Resource/Font/NimbusSanL-BoldItal Resource/Font/URWGothicL-Demi Resource/Font/StandardSymL Resource/Font/URWBookmanL-DemiBold Resource/Font/NimbusRomNo9L-Regu Resource/Font/URWGothicL-Book Resource/Font/NimbusSanL-ReguCond Resource/Font/CenturySchL-Bold Resource/Font/URWBookmanL-Ligh Resource/Font/NimbusRomNo9L-ReguItal Resource/Font/URWBookmanL-DemiBoldItal Resource/Font/NimbusMonL-ReguObli Resource/Font/NimbusSanL-ReguCondItal Resource/Font/CenturySchL-Ital Resource/Font/URWPalladioL-Roma Resource/Font/CenturySchL-BoldItal Resource/Font/URWBookmanL-LighItal Resource/Font/NimbusSanL-BoldCond Resource/Font/NimbusSanL-BoldCondItal Resource/Font/NimbusMonL-BoldObli Resource/Font/URWGothicL-DemiObli Resource/Font/NimbusSanL-Regu Resource/Font/URWPalladioL-Bold Resource/Font/NimbusMonL-Regu Resource/Font/NimbusSanL-ReguItal Resource/Font/URWGothicL-BookObli Resource/Font/URWPalladioL-Ital]

2008-08-12T23:44:53.919723Z Ray Johnston

Remove 'Actual Fonts' references in the Fontmap that connected the URW FontName
to an 8.3 filename that we no longer use.

[Resource/Init/Fontmap.GS]

2008-08-12T21:04:38.048281Z Ray Johnston

Move opdfread.ps to Resource/Init since this is needed by the 'ps2write' device.

[lib/opdfread.ps Resource/Init/opdfread.ps]

2008-08-12T14:42:02.961911Z Ken Sharp

Fix: Genoa file renders incorrectly with current color code

Details:
A typo in the DeviceGray code used an array of doubles instead of floats, causing incorrect
values to be returned by currenthsbcolor.

[src/zcolor.c]

2008-08-12T13:41:08.386171Z Ken Sharp

Yet another minor change in the color work.

The test file 'foo0-ge-64k.pdf' demonstrated an error with NChannel processing. The old
PostScript based code simply ignored errors when setting the NChannel Colorant spaces, we
now do the same.

[src/zcolor.c]

2008-08-12T09:17:56.269901Z Ken Sharp

Another small change to the color code. The issue Michael has been looking at (#689950)
uses a DeviceN space with an NChannel Colorants dictionary. A mistake in the NChannel
parameter checking meant that the Colorants were never evaluated.

[src/zcolor.c]

2008-08-12T07:37:45.162884Z Igor Melichev

Fix (PS interpreter) : Wrong glyph positions with CIDFontType 2 WMode 1.

DETAILS :

Bug 688058 "Vertical Japanese characters shift upper right direction". 
Bug 689559 "centerline of vertical CJK text is wrong when external TrueType CJK font is used.". 

The old code wrongly computes glyph positions when a CIDFontType 2 WMode 1
font has no metrics and includes vmtx. The patch properly computes
the V vector using top side bearing and font bounding box.
See comments in code.

This patch fixes the glyph positions and closes the original bugs, 
but we still observe other 2 problems with the 688058 test case :

1. 2 characters are substitutes with hollow boxes.
2. pdfwrite generates a PDF with a wrong glyph positions.

Opened bugs 690006, 690007 for them.

[src/zchar42.c]

2008-08-12T07:35:33.506225Z Igor Melichev

Fix (TT interpreter) : AVector bug workaround was wrong.

DETAILS :

Bug 689820 "rendering of embbeded font with very low quality".

The problem may happens only when a glyph is bigger than [-UnitsPerEm*2, UnitsPerEm*2].
The old code includes a workaround for an antique AVBector bug.
However for detecting it the old code supplied a glyph bbox 
with a wrong coordinate representation (scale).

The test case supplies a glyph, in which some points have x-coordinate
greater than UnitsPerEm*2, so the workaround
converted all curves into lines. 

The patch provides the right bbox data.

[src/ttfmain.c]

2008-08-12T07:31:19.650883Z Igor Melichev

Fix (graphics) : A clist-based pattern supplied a wrong clipping box.

DETAILS :

Bug 689851 "Portions of output missing".

The test document paints an imagemask with a pattern 1 color, 
which contains a Type 1 image, which represents the graphics 
that one can view there.

The pattern appears so big as Ghostscript converts it into a clist.
When rendering the inner image to the clist,
It calls get_clipping_box to know whether the image portion
falls inside the painting area. But the old code
appears to use a wrong implementation of the get_clipping_box method, 
which was inherited from the page clist writer and retrieves the page size.
Here we need the pattern cell size instead the page size.
The patch sets up the right implementation for get_clipping_box.

[src/gxpcmap.c src/gximask.c]

2008-08-12T01:49:02.711432Z Alex Cherepanov

Fix single '~' expansion in generic POSIX persistent-cache implementation.

[src/gp_unix_cache.c]

2008-08-12T01:31:32.498041Z Alex Cherepanov

Fix a potential crash after failed memory allocation in RAM-based command list.

[src/gxclmem.c]

2008-08-12T00:53:52.298682Z Alex Cherepanov

Fix a typo in get_data() macro used by PDF 1.4 composition devices
because the typo caused dependency on the side effect order.

[src/gdevp14.c]

2008-08-11T23:01:09.304118Z Alex Cherepanov

Add a missing break statement after 16-bit Burn blending mode case.

[src/gxblend.c]

2008-08-11T19:11:45.049525Z Ralph Giles

Clean up the configure help entries for optional features.

[src/configure.ac]

2008-08-11T18:58:27.188200Z Ralph Giles

Don't run configure if autoconf failed to regenerate it.

[autogen.sh]

2008-08-11T18:31:30.295468Z Ralph Giles

Add a --disable-cairo option to block linking to libcairo for packagers.
Bug 689999.

[src/configure.ac]

2008-08-11T15:10:06.472831Z Ken Sharp

Further to the PostScript color work, clear up a couple of warnings which exhibit using gcc
on Linux, but not MSVC.

[src/zfunc.c src/zfunc4.c]

2008-08-11T14:16:18.397362Z Ken Sharp

Move the interpretation of PostScript (and PDF) color spaces from PostScript into C. 

DETAILS:
This has required a large number of changes, there are a few new .c or .h files, a
number of PostScript files have been removed, and a few others simplified. A few
documentation '.htm' files have also been modified to reflect these changes.

[src/int.mak src/zpcolor.c src/zicc.c Resource/Init/gs_devn.ps src/zcssepr.c Resource/Init/gs_cspace.ps src/zcie.c src/zicc.h src/zcie.h src/zcspixel.c Resource/Init/gs_lev2.ps Resource/Init/gs_ciecs3.ps Resource/Init/gs_sepr.ps src/zcolor.c src/ifunc.h src/zfunc4.c src/zcsdevn.c src/zcolor.h Resource/Init/gs_patrn.ps src/zfsample.c doc/Develop.htm src/zfunc.c Resource/Init/gs_ll3.ps src/zcsindex.c doc/Psfiles.htm Resource/Init/gs_icc.ps Resource/Init/gs_devpxl.ps src/gscolor2.h Resource/Init/gs_init.ps Resource/Init/gs_devcs.ps Resource/Init/gs_indxd.ps Resource/Init/gs_ciecs2.ps]

2008-08-11T12:19:24.825877Z Ken Sharp

Change the description for the -dNOCIE switch, since it wasn't apparently clear enough
which device spaces were substituted for which CIEBased spaces.

[doc/Use.htm]

2008-08-08T05:39:21.132225Z Ralph Giles

Re-add pdf_draw.ps which was dropped in r8954, since the CET regression
requires it.

[Resource/Init/pdf_draw.ps]

2008-08-08T04:22:38.494595Z Ray Johnston

Massive commit discussed before the freeze to move the PostScript initialization
files to Resource/Init. This obviates the need for geninit when COMPILE_INITS=1.
A followup change will enhance mkromfs to allow it to 'strip' comments and white
space from PostScript input files somewhat reducing the compressed storage needed
for the files in Resource/Init. All files mentioned in int.mak with 'ADDMOD ...
-ps ...' are included as well as those that would have been included via gs_init.ps
%% Replace lines.

Builds tested on Windows and Cygwin for the various executables (gs, pcl6, pspcl6
and gxps).

The default LIBPATH and GenericResourceDir are adjusted accordingly.

[Resource/Init/gs_typ32.ps /trunk/ghostpdl/main/pcl6_gcc.mak Resource/Init src/cfonts.mak lib/gs_dbt_e.ps Resource/Init/gs_dscp.ps lib/gs_statd.ps lib/gs_fapi.ps Resource/Init/gs_devn.ps Resource/Init/gs_agl.ps lib/cidfmap src/iccinit0.c lib/gs_epsf.ps lib/gs_dpnxt.ps lib/pdf_draw.ps lib/gs_icc.ps lib/gs_diskf.ps src/all-arch.mak Resource/Init/gs_fapi.ps lib/gs_init.ps lib/pdf_font.ps lib/gs_ciddc.ps lib/gs_diskn.ps src/ccfont.h lib/pdf_base.ps Resource/Init/gs_dps.ps lib/gs_sym_e.ps lib/gs_btokn.ps Resource/Init/xlatmap Resource/Init/gs_epsf.ps lib/gs_resmp.ps Resource/Init/gs_init.ps src/gs.mak src/wmin.mak lib/gs_wan_e.ps src/Makefile.in Resource/Init/gs_indxd.ps Resource/Init/gs_cidtt.ps src/macos-mcp.mak Resource/Init/gs_img.ps lib/gs_type1.ps lib/pdf_cslayer.ps Resource/Init/gs_setpd.ps lib/gs_dps1.ps Resource/Init/gs_mgl_e.ps src/psromfs.mak lib/gs_lev2.ps lib/gs_pdf_e.ps Resource/Init/gs_fonts.ps src/icfontab.c Resource/Init/gs_mex_e.ps Resource/Init/gs_ttf.ps lib/gs_pdfwr.ps Resource/Init/gs_std_e.ps lib/gs_cidfn.ps /trunk/ghostpdl/common/msvc_top.mak src/geninit.c src/bcwin32.mak src/imain.c Resource/Init/pdf_cslayer.ps lib/gs_ll3.ps lib/Fontmap Resource/Init/gs_dps1.ps src/iccinit1.c Resource/Init/gs_lev2.ps lib/gs_css_e.ps lib/gs_ccfnt.ps Resource/Init/gs_l2img.ps lib/gs_frsd.ps Resource/Init/gs_cet.ps lib/gs_devpxl.ps lib/gs_trap.ps Resource/Init/FCOfontmap-PCLPS2 src/macosx.mak Resource/Init/gs_patrn.ps Resource/Init/pdf_main.ps lib/gs_ciecs2.ps Resource/Init/gs_res.ps Resource/Init/gs_il1_e.ps lib/gs_cidcm.ps lib/gs_cmap.ps src/openvms.mmk lib/gs_typ32.ps Resource/Init/gs_frsd.ps Resource/Init/gs_mro_e.ps Resource/Init/gs_devpxl.ps Resource/Init/gs_devcs.ps Resource/Init/gs_trap.ps Resource/Init/gs_ciecs2.ps Resource/Init/gs_fntem.ps lib/gs_cspace.ps lib/gs_agl.ps Resource/Init/gs_cmap.ps Resource/Init/gs_typ42.ps Resource/Init/gs_cidfm.ps Resource/Init/pdf_rbld.ps src/int.mak lib/pdf_sec.ps src/msvclib.mak src/imainarg.c /trunk/ghostpdl/main/pcl6_msvc.mak Resource/Init/gs_cff.ps Resource/Init/gs_cspace.ps lib/gs_dps.ps src/msvc32.mak src/unix-gcc.mak lib/xlatmap Resource/Init/pdf_sec.ps src/zfile.c lib/pdf_ops.ps Resource/Init/gs_dbt_e.ps Resource/Init/gs_statd.ps lib/gs_indxd.ps lib/gs_cidtt.ps lib/gs_dps2.ps src/unixansi.mak lib/gs_img.ps Resource/Init/cidfmap lib/gs_setpd.ps Resource/Init/gs_dpnxt.ps Resource/Init/gs_icc.ps lib/gs_mgl_e.ps Resource/Init/gs_diskf.ps Resource/Init/pdf_ops.ps src/winint.mak lib/gs_fonts.ps Resource/Init/gs_ciddc.ps Resource/Init/pdf_font.ps Resource/Init/gs_dps2.ps Resource/Init/gs_diskn.ps lib/gs_mex_e.ps lib/gs_ttf.ps lib/gs_std_e.ps Resource/Init/pdf_base.ps lib/gs_resst.ps Resource/Init/gs_sym_e.ps Resource/Init/gs_btokn.ps src/wctail.mak lib/Fontmap.GS src/watclib.mak /trunk/ghostpdl/language_switch/pspcl6_msvc.mak lib/gs_sepr.ps lib/gs_ciecs3.ps lib/gs_l2img.ps Resource/Init/gs_resmp.ps lib/gs_cet.ps Resource/Init/gs_wan_e.ps src/iccfont.c lib/FCOfontmap-PCLPS2 lib/gs_patrn.ps lib/pdf_main.ps Resource/Init/Fontmap.GS Resource/Init/gs_type1.ps lib/gs_res.ps lib/gs_il1_e.ps /trunk/ghostpdl/language_switch/pspcl6_gcc.mak Resource/Init/gs_ciecs3.ps Resource/Init/gs_sepr.ps lib/gs_mro_e.ps Resource/Init/gs_pdf_e.ps lib/gs_devcs.ps src/openvms.mak Resource/Init/gs_pdfwr.ps Resource/Init/gs_cidfn.ps src/watcw32.mak lib/gs_fntem.ps Resource/Init/Fontmap Resource/Init/gs_ll3.ps Resource/Init/gs_css_e.ps src/os2.mak lib/gs_cidfm.ps lib/gs_typ42.ps lib/pdf_rbld.ps src/ugcclib.mak lib/gs_dscp.ps lib/gs_devn.ps lib/gs_cff.ps Resource/Init/gs_cidcm.ps]

2008-08-08T04:03:54.625369Z Ray Johnston

Fix 'rangecheck in showpage' with NumRenderingThreads>0 if the lines requeested do
not range from 0 forward or height-1 backwards. Bug from customer 531 and 850.
Also fix problems with reversion to non-multithreaded rendering with file and memory
based BAND_LIST_STORAGE.

DETAILS:

The 'clist_get_band_from_thread' logic had a known deficiency if the device did not
request lines ranging from the top or bottom of the page. The fix assumes that the
normal direction is from line 0 forward unless the first line requested is the last
line of the page, setting the lookahead_direction. If a request is made for a band
other than the next one in the expected direction, the lookahead_direction is 
reversed and threads are started for the requested band and the bands following in
the new direction. This effectively recovers from an incorrect guess, but since
there is no limit on the number of times that the recovery is performed, also allows
for lines/bands to be requested in arbitrary order.

The customer uses a custom device, but the 'bit' devices were recently enhanced
with -dFirstLine= and -dLastLine= parameters to allow testing.

The re-opening of the clist files was changed to use 'a+' to avoid erasing the
file if multi-threaded rendering was shut down (clist_teardown_render_threads),
and rendering was reverted to single threaded mode.

The memory based clist (BAND_LIST_STORAGE=memory) was supplemented to better
track re-opening and allow for 'a' mode and avoid memory leak of the original
'base' named memfile structure. The customers mentioned above also use the
BAND_LIST_STORAGE=memory for performance reasons (realizing a 10% gain in
throughput over file based clist).

[src/gxclmem.c src/gxclthrd.c src/gxclmem.h]

2008-08-07T19:20:04.322235Z Igor Melichev

Fix (graphics) : Redundant patterns in clist (continued),

DETAILS :

Bug 689995 "segfault with 09-34.PS"

1. (the bug fix) A recent patch doesn't account patterns with no tile,
which represent an empty pattern.  
This change inserts checks for empty tiles
and process them with no optimization (redundantly), 
because they are small and are not cached.
See comments in code.

2. pcls->band_complexity.uses_color accummulated a pattern address bits instead
a real data. This bug was introduced when serializing colors to clist.
nevertheless this bug has no visible effect because 'pure' is overlayed with 
a tile address, which can't be equal to 0 or 0xffffff.
So formally this part of the change is algorithmically equivalent,
but it is important for redability. 

Note that when serializing a pattern to clist, 'uses_color' is not properly
computed and needs further development. see new bug 689997.

Minor change : removed the second call to gs_dc_get_pattern_id for a faster code.

[src/gsptype1.c src/gxclpath.c]

2008-08-07T05:20:08.759100Z Alex Cherepanov

A pointer to allocated memory was used before checking it for 0. This bug
was discovered by Klocwork static code analyzer.

[src/scfd.c]

2008-08-07T00:02:14.784953Z Ralph Giles

Add the PSSRC dir to the includes of contrib devices that depend on
the ps interpreter so they can be build when that directory is different
from src.

[contrib/contrib.mak]

2008-08-07T00:02:13.283150Z Ralph Giles

Use graphics library instead of interpreter error codes in the gomni
device.

[contrib/gomni.c]

2008-08-06T19:57:07.199634Z Ralph Giles

Remove references to malloc/free memory management not used since r8192.

[src/lib.mak src/gsncdummy.c]

2008-08-06T19:51:21.189161Z Ralph Giles

Remove trailing whitespace.

[src/gsncdummy.c]

2008-08-06T19:49:05.961384Z Ralph Giles

Use graphics library instead of interpreter-level rangecheck errors.

[src/gsncdummy.c]

2008-08-06T18:28:20.524086Z Ray Johnston

Add a capability to select the first and last line to be emitted to the
output file. This was needed to support some customers (531 and 850) that
do something similar in their devices. Adds -dFirstLine=# and -dLastLine=#
to this device. Line numbers are from 0 to height-1, and may be in reverse
order. Probably not much use other than testing, but it doesn't hurt if it
is there.

[src/gdevbit.c]

2008-08-06T07:22:26.679682Z Igor Melichev

Fix (graphics) : Redundant patterns in clist.

DETAILS :

Bug 689865 "clist stores redundant patterns".

The change is pretty simple because the clist reader already implememnts
a pattern cache. We just add pattern id to gx_clist_state
and provide a short format (just the id) when writing and reading
a pattern color to/from clist at second time. A new function gs_dc_get_pattern_id
allows to access the pattern id through closures of color elements.

Note it remembers up to 2 pattern ids for a band
(one for the specific band, and another for "all bands").
A better way would be to remember all patterns cached for a band,
but it would need to save all cached ids individually for each band while clist writing.
We don't want to enlarge the clist writer storage now.

Minor change : Some dependencies of gxclpath.c were missed in makefile.

[src/gsptype1.c src/lib.mak src/gsptype1.h src/gxcldev.h src/gxclpath.c]

2008-08-06T06:24:44.864622Z Igor Melichev

Fix (graphics) : Memory leak from Indexed color space.

DETAILS :

Bug 689990 "pcl6.exe crash with gs revision 8928".

This change partially unwinds the revision 8928 change
and reopens the bug 89822 "Memory leaks during rendering clist."
See comment in code.

[src/gscolor2.c]

2008-08-05T20:44:34.621109Z Ralph Giles

Move pointer dereferences to after the NULL check.

[src/ttobjs.c]

2008-08-03T17:54:46.281366Z Alex Cherepanov

Detect and reject PDF files with circular references in the page tree.
Avoid an infinite loop. Bug 689954.

[lib/pdf_main.ps]

2008-08-03T17:23:40.990280Z Ralph Giles

Update ignore list for the ijs directory.

[ijs]

2008-08-03T17:17:10.771824Z Ralph Giles

Clean up the cairo minimum version check introduced in r8929.

[src/configure.ac]

2008-08-03T16:30:42.166329Z Igor Melichev

Fix (graphics) : A slow stroking with big patterns.

DETAILS :

Bug 689966 "c329.bin hang with bitcmyk in clist code".


1. The stroking algorithm includes a branch for a 'faster' rasterizing
with an idempotential color. That branch paints each stroke independently of others.
However that branch doesn't apply an optimization for big patterns,
which the general filling algorithm implements. It caused the too slow rendering,
because a clist-based pattern is played back for each parallelogram.
This change disables the 'faster' srtoking with big patterns,
so that the faster filling algorithm works fine for stroking.

2. Revert the revision 8851 change, which was a temporary workaround for the problem,
The default value for MAX_PATTERN_BITMAP_SIZE is now restored back to 1Mb.

[src/lib.mak src/gxpcmap.c src/gxstroke.c]

2008-08-03T15:47:58.770546Z Alex Cherepanov

Cairo device requires at least v. 1.2.0 of the Cairo library to build.

[src/configure.ac]

2008-08-03T12:26:41.949878Z Igor Melichev

Fix (graphics) : Memory leak from Indexed color space.

DETAILS :

Bug 689822 "Memory leaks during rendering clist."

The finalize function doesn't release 'table,
which is allocated when use_proc == 1.

Minor change : improved a debug printing in gsmchunk.c :
A meanful name is better than an unknown address.

[src/gsmchunk.c src/gscolor2.c]

2008-08-03T12:25:39.705021Z Alex Cherepanov

Give a name to a continuation operator %ztoken_continue to avoid printing
its address, which varies between builds and causes spurious regression
reports.

[src/ztoken.c]

2008-08-03T07:49:59.678670Z Russell Lang

Fix the OS/2 build, which was broken because it was trying to use the 
Windows synchronisation code.  
While OS/2 does support thread synchronsation, there is no ghostscript 
implementation for the OS/2 platform, and no interest in writing one.

[src/os2.mak]

2008-08-02T15:10:41.076927Z Alex Cherepanov

Replace a conditional expression with an 'if' statement. The former
requires a prototype for mkstemp64() that is not available on AIX.

[src/gp_unifs.c]

2008-08-01T21:43:44.587346Z Ralph Giles

Document needing to remove autom4te.cache from the jasper directory.

[doc/Release.htm]

2008-08-01T21:43:42.361706Z Ralph Giles

We can no longer run the full build with -dBufferSpace=100000. The
minimum to complete the smoke test seems to be around 120000, but
use 200000 as future insurance.

[doc/Release.htm]

2008-08-01T20:57:40.076512Z Alex Cherepanov

Reduce heap size limit (/Zm) on MSVC6 to fix internal compiler error
when COMPILE_INITS=1.

[src/msvccmd.mak]

2008-08-01T20:55:00.712414Z Ralph Giles

Add a mapping of commit ids to author names.

This is used by split_changelog.py to do the replacement when building 
the History files. The changes to that script to make use of this file
were inadvertently included in r8917.

[doc/AUTHORS]

2008-08-01T20:22:16.068978Z Ralph Giles

Bump the version and product name post-release.

[doc/News.htm toolbin/split_changelog.py lib/gs_init.ps src/gscdef.c src/version.mak]

2008-08-01T18:08:18.641815Z Ralph Giles

Update change logs for the 8.53 release.

[doc/Changes.htm doc/History8.htm doc/Details8.htm doc/Details.htm]

Version 8.63 (2008-08-01)

This is the fourth scheduled release in the stable Ghostscipt 8.6x series. It corresponds to the 1.53 release of GhostPDL.

Approximately 238 bugs have been fixed since version 8.62. Of particular note are robustness and performance improvements with large files, invalid PDF, and font handling.

The major new feature of this release is multithreaded rendering. This can be requested by passing -dNumRenderingThreads=n on the command line. The input document is first parsed, and then each page is split into n bands which are rendered concurrently. This can provide a significant reduction in processing time on multi-core systems.

Images are now always interpolated in their source colorspace. This improves correctness for XPS documents and avoids bypassing the custom color management callbacks for interpolated images. Interpolation and color management are both expensive operations, so this affects performance with large images. The effect can be positive or negative depending on the file and the target resolution. If performance is a problem, we suggest running with -dNOINTERPOLATION.

Support for OpenPrinting Vector devices has been upgraded to version 1.0.

There are two new devices in this release, both experimental. Behdad Esfahbod has contributed a cairo output device which uses the cairo graphics library to generate PDF, SVG, EPS, or PNG files, based on the requested filename extension. The svgwrite device directly outputs Scalable Vector Graphics, the W3C XML vector graphics format. Both support only vector art at this point; text and images will not be represented efficiently.

The following bugs were open at the time of release:

226943, 430175, 465936, 493348, 535932, 578865, 614298, 626295, 686747, 686853, 686865, 687000, 687011, 687084, 687095, 687146, 687193, 687257, 687271, 687280, 687295, 687297, 687303, 687327, 687375, 687414, 687475, 687492, 687514, 687520, 687536, 687561, 687593, 687608, 687630, 687650, 687666, 687674, 687677, 687695, 687697, 687702, 687715, 687721, 687728, 687729, 687731, 687775, 687780, 687782, 687793, 687796, 687805, 687850, 687887, 687903, 687904, 687915, 687931, 687950, 687957, 687981, 687983, 688007, 688022, 688024, 688026, 688032, 688036, 688042, 688058, 688061, 688064, 688066, 688081, 688095, 688129, 688130, 688151, 688159, 688166, 688184, 688187, 688204, 688207, 688210, 688215, 688227, 688267, 688269, 688280, 688288, 688312, 688318, 688320, 688333, 688342, 688359, 688361, 688363, 688372, 688378, 688386, 688387, 688389, 688395, 688413, 688436, 688437, 688440, 688448, 688473, 688475, 688483, 688495, 688500, 688515, 688528, 688533, 688539, 688540, 688542, 688557, 688565, 688573, 688580, 688581, 688588, 688601, 688604, 688605, 688616, 688617, 688619, 688627, 688636, 688638, 688647, 688651, 688653, 688655, 688673, 688696, 688697, 688699, 688708, 688709, 688710, 688714, 688717, 688728, 688731, 688736, 688739, 688757, 688770, 688774, 688777, 688778, 688797, 688818, 688829, 688843, 688846, 688871, 688872, 688876, 688908, 688918, 688919, 688923, 688926, 688933, 688942, 688943, 688949, 688952, 688958, 688969, 688976, 688978, 688986, 688990, 688994, 688999, 689003, 689011, 689013, 689022, 689025, 689028, 689031, 689032, 689040, 689044, 689046, 689048, 689057, 689058, 689060, 689070, 689076, 689077, 689078, 689080, 689081, 689093, 689094, 689098, 689116, 689128, 689129, 689130, 689133, 689137, 689145, 689146, 689148, 689150, 689153, 689154, 689161, 689167, 689174, 689184, 689188, 689195, 689198, 689199, 689209, 689222, 689224, 689230, 689236, 689247, 689248, 689252, 689253, 689264, 689278, 689279, 689280, 689283, 689289, 689290, 689295, 689304, 689305, 689308, 689313, 689331, 689335, 689340, 689341, 689358, 689361, 689363, 689370, 689376, 689378, 689392, 689396, 689402, 689418, 689419, 689421, 689422, 689423, 689431, 689438, 689439, 689444, 689450, 689451, 689456, 689460, 689462, 689463, 689471, 689484, 689487, 689489, 689490, 689498, 689500, 689502, 689506, 689507, 689509, 689512, 689518, 689521, 689522, 689546, 689547, 689549, 689554, 689557, 689559, 689560, 689561, 689563, 689566, 689567, 689571, 689573, 689574, 689581, 689583, 689584, 689585, 689591, 689592, 689595, 689598, 689601, 689606, 689610, 689616, 689618, 689623, 689625, 689627, 689628, 689632, 689636, 689641, 689652, 689653, 689654, 689657, 689658, 689663, 689666, 689669, 689670, 689674, 689681, 689682, 689684, 689689, 689690, 689691, 689692, 689697, 689698, 689702, 689704, 689705, 689709, 689710, 689711, 689715, 689716, 689721, 689722, 689725, 689726, 689727, 689729, 689734, 689737, 689741, 689747, 689752, 689756, 689758, 689759, 689760, 689761, 689767, 689769, 689772, 689773, 689775, 689778, 689781, 689786, 689789, 689790, 689792, 689793, 689794, 689799, 689801, 689805, 689808, 689816, 689817, 689820, 689822, 689823, 689826, 689834, 689835, 689836, 689840, 689842, 689849, 689850, 689851, 689853, 689856, 689858, 689859, 689860, 689861, 689862, 689865, 689868, 689869, 689870, 689871, 689872, 689877, 689878, 689879, 689880, 689881, 689883, 689885, 689890, 689891, 689895, 689901, 689902, 689903, 689904, 689905, 689909, 689910, 689914, 689915, 689916, 689917, 689922, 689923, 689928, 689929, 689930, 689931, 689933, 689935, 689937, 689938, 689939, 689940, 689941, 689942, 689943, 689947, 689950, 689951, 689952, 689954, 689955, 689957, 689961, 689966, 689968, 689969, 689970, 689972, 689974, 689975, 689980.

Incompatible changes

The maximum number of color components has been reduced to 8 (from 252) as a performance improvement. Eight is the largest number commonly used and the largest number for which we support continuous tone images. Users with special needs can restore the previous behavior by setting the GS_CLIENT_COLOR_MAX_COMPONENTS preprocessor symbol to the required number of components at compile time.

The -Z: debugging option now uses 'realtime' instead of 'usertime' when reporting timing information on unix-like systems. This has always been the case on windows-like systems.

Obsolete makefiles for the DesqView environment have been removed.

Changelog

2008-08-01T17:53:17.331788Z Ralph Giles

Bump the product name an date for the 8.63 release.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm src/gscdef.c doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 src/version.mak man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2008-07-31T21:06:50.284451Z Ralph Giles

Update change logs for 8.63rc3.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/Changes.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 src/version.mak man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Details.htm doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2008-07-29T20:35:41.916113Z Ray Johnston

Fix problem with NumRenderingThreads>0 with devices that request data from
the bottom up such as the 'bmp*' devices. Bug 689985.

[src/gxclthrd.c]

2008-07-29T19:11:31.677116Z Alex Cherepanov

Add support to NULL pointers in t_structs or t_astructs objects to execstack
operator. Thanks to Ken for the analysis. Bug 689535.

DETAILS:
The issue is to do with devices handling patterns as high-level objects, which
is why it affects pdfwrite (which can handle patterns itself) but not regular
rendering. In zpcolor.c, pattern_paint_prepare(), there are two control paths,
one for devices which handle patterns as high-level objects, and one for
devices which don't. If the device can't handle high level objects, we install
a pattern accumulation device.

In this case, the flag internal_accum is set, we create the pattern accumulator
device and open it:

    if (internal_accum) {
	gs_memory_t *storage_memory = gstate_pattern_cache(pgs)->memory;

	pdev = gx_pattern_accum_alloc(imemory, storage_memory, pinst,
"pattern_paint_prepare");
	if (pdev == 0)
	    return_error(e_VMerror);
	code = (*dev_proc(pdev, open_device)) ((gx_device *) pdev);
...
...
}

Later the two control paths rejoin and we put some objects on the execution
stack:

    push_mark_estack(es_other, pattern_paint_cleanup);
    ++esp;
    make_istruct(esp, 0, pdev);

Now notice that we construct the structure on esp using pdev, but we *don't*
create pdev if we can handle patterns, so its left as NULL and we end up
pushing an empty t_struct.

Leo's question in comment 10 is whether this is legal, the answer appears to be
yes, but its debatable. 

In pattern_paint_finish we do this:

    gx_device_forward *pdev = r_ptr(esp - 1, gx_device_forward);

    if (pdev != NULL) {
	gx_color_tile *ctile;
	int code = gx_pattern_cache_add_entry((gs_imager_state *)igs,
					  pdev, &ctile);

That is, if the structure *isn't* NULL we do something with it, we ignore it if
it is NULL. Either way we then do this:

    esp -= 3;

Removing all the objects from the execution stack that we added. Notice that
the structure we pushed onto the execution stack isn't actually 'executed', its
just data used by the pattern handler.

Now, all this works just fine in normal practice, however the job here uses a
CIEBased colour space, and being from an Adobe application it tries to set the
ColorRendering. Since we don't implement a ColorRendering resource category,
this causes an error (handled in a stopped context).

The default error handler uses execstack, and this is where the actual error
finally occurs, because execstack can't handle the empty structure.

[src/zcontrol.c]

2008-07-29T18:06:37.196198Z Ralph Giles

Update change logs for 8.63rc2.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/Changes.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 src/version.mak man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Details.htm doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2008-07-29T11:01:11.006826Z Russell Lang

Allow compilation with Microsoft Visual Studio 2008 (VC 9.0).
Include lib files in the Windows installer when using COMPILE_INITS=1.

[src/winint.mak src/msvc32.mak]

2008-07-28T22:23:04.128314Z Michael Vrhel

Fix for Bug 689983.  This was introduced with the source space interpolation code.  Fixes indexing direction in source data when we have indexed data, interpolation and a negative xx value in the geometric transformation.

[src/gxiscale.c]

2008-07-28T20:44:43.542926Z Ralph Giles

Update change logs for 8.63rc1.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

2008-07-28T19:41:25.163173Z Ralph Giles

Fix a syntax error from r8548.

This wasn't noticed because double.dev isn't part of the default build.

[src/zdouble.c]

2008-07-28T18:58:41.634974Z Ralph Giles

Update release date and product name for 8.63rc1.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm src/gscdef.c doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 src/version.mak man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2008-07-28T18:55:01.811159Z Ralph Giles

Update news for 8.63rc1.

[doc/News.htm]

2008-07-28T12:01:51.595271Z Alex Cherepanov

Fix extraction of the default subfile from PDF file collection on save
level 0. Export the file name as a PS name from PDF interpreter instance
to protect the name from restore. Bug 689981.

DETAILS:
Exporting this value as a global composite object doesn't work when PDF
interpreter runs on the save level 0. If we ever implement processing of
multiple files from PDF collection the interface will need some changes.

[lib/pdf_main.ps]

2008-07-28T10:10:53.373341Z Igor Melichev

Fix (clist writer) : Improve the logic about zero tile id.

DETAILS :

Thanks to Peter for participation. See comment in code.

[src/gxclrect.c]

2008-07-28T07:52:42.264750Z Igor Melichev

Fix (printer) : A check for buffer space overflow was dramatically overestimated.

DETAILS :

In the old code :

    new_height < max_ulong/(mem_space + (new_height * pdf14_trans_buffer_size))

Where pdf14_trans_buffer_size is (raster * NUM_PDF14_BUFFERS).

equivalent to :

    
    new_height * (mem_space + (new_height * (raster * NUM_PDF14_BUFFERS))) < max_ulong


equivalent to :

    new_height * mem_space + new_height * new_height * raster * NUM_PDF14_BUFFERS < max_ulong


So it counts new_height quadratically, but it must be the linear multiple by the raster.

Debugged with the test case of the bug 689982.
It creates a 15Mb raster, but could not switch off the banding
even with -dMaxBitmap=1000000000 .

[src/gdevprn.c]

2008-07-27T21:06:38.633515Z Igor Melichev

Fix (shading) : Empty clipping was entirely lost.

DETAILS :

Bug 689982 "A wrong shading raster".

The old code doesn't account that gx_cpath_from_rectangle
may normalize the given rectangle.

[src/gxfill.c]

2008-07-27T19:10:02.737363Z Ralph Giles

Metadata updates for the new zfile header.

[src/zfile.h doc/Develop.htm]

2008-07-27T16:07:30.174721Z Ray Johnston

Remove (complete) duplication of the contents. Cosmetic change only.

[src/zfile.h]

2008-07-27T16:01:28.177923Z Igor Melichev

Fix (clist) : Skip writing unuseful data with linear color triangle.

DETAILS :

This fixes a minor problem what was discovered while working on 
bug 689918 "Ghostscript 8.62 and 8.63 segmentation fault".

cmd_write_trapezoid_cmd wrote an unused data to clist when 
processing a linear color triangle. The variables ybot, ytop are never used
while a clist interpretation. In same time the data are not initialized
in that case, so they imply an indeterministic content and length of the clist.

[src/gxclrast.c src/gxclrect.c]

2008-07-27T09:38:42.451745Z Igor Melichev

Fix (True Type font loader) : Can't work around unsorted 'loca' when 'loca' is not loaded.

DETAILS :

Bug 689893 "Regression: CID font emulation is broken." 

A work around against unsorted 'loca' and its recent improvements
assume that 'loca' presents in sfnts. It is not true
when a CID font is emulated with a True Type disk font,
because in that case the font machinery delay loading
'loca' and 'glyp' elements until a real request from a document.
For more details see comments added in code.

[src/bfont.h src/zfcid1.c src/gstype42.c src/zfont42.c]

2008-07-27T09:29:37.311275Z Igor Melichev

Fix (PDF interpreter) : A temporary work around huge images with a soft mask.

DETAILS :

Bug 689080 "PDF Crash with Transparency at 2880 dpi".

 
This is a temporary workaraound for the problem,
see comment in code.

With this patch the test case doesn't crash,
but it needs  -dBufferSpace=500000000 to complete in 15 minutes
on Core 2 Duo 2.4 MHz with debug build.
The test case is pretty big anyway - it generates a 4.2 gigapixel raster.

Thankls to Ray for obtaining the buffer space from a device.

I think the old code is incorrect because it looks applying the
mask two times : first when installing a mask buffer with
.begintransparencymaskimage in doimagesmask, and second time when
processing a Type 103 image in C code. The raster difference
is likely caused by that. I don't perform a deeper analyzis,
because it's a temporary fix which needs to be replaced soon.
All that is written in this paragraph are not sure,
because there is no time for a deeper analyzis before 8.63 release.
When we'll complete Type 103 images (with rasterizing after clist
and with a proper handling in pdfwrite), .begintransparencymaskimage
will likely go away.

[lib/pdf_draw.ps]

2008-07-27T07:03:42.852634Z Russell Lang

When building the Windows installer with COMPILE_INITS=1, 
do not include the Resource and lib initialization files as
separate files in the installer zip archive.

[src/winint.mak]

2008-07-27T02:52:11.521293Z Alex Cherepanov

Fix direct access to a subfile in the %rom% file system by reusable
stream. Bug 689976, customers 661, 580.

DETAILS:
1. Open the source file of the reusable stream as a general stream,
   rather than an os-based file stream.
2. Take into account file_offset member when accessing the stream.

[src/zfile.h src/gsiorom.c src/int.mak src/zfrsd.c src/zfile.c]

2008-07-25T22:51:14.900519Z Russell Lang

Change Windows installer to remove "GPL Ghostscript Fonts" target.
Ghostscript now includes fonts in the Resource directory, 
and no longer needs the fonts previously installed in 
"C:\Program Files\gs\fonts".

[src/dwsetup.rc src/winint.mak src/dwsetup.h src/dwsetup.cpp]

2008-07-25T01:10:39.451286Z Alex Cherepanov

Use reusable stream when the data stream of type 0 function doesn't fit into
a string. Bug 689978, customer 770.

[lib/pdf_draw.ps]

2008-07-24T17:28:51.809318Z Ralph Giles

Fix source style warnings from the nightly regression.

[src/aes.h doc/Develop.htm toolbin/clusterpush.sh]

2008-07-24T02:06:07.385871Z Michael Vrhel

Clean up of // comment in code and debug ifdef that should have been removed for r8868

[src/gxiscale.c]

2008-07-24T00:42:06.095459Z Ralph Giles

Change the XYSSL AES implementation to better match our conventions.

[src/aes.h src/aes.c]

2008-07-24T00:42:04.729720Z Ralph Giles

Change the XYSSL AES implementation to build in isolation.

[src/aes.c]

2008-07-24T00:42:02.863201Z Ralph Giles

Replace Brian Gladman's AES implementation with a no-advertising BSD
version from XYSSL 0.9. Used with permission of Christophe Devine.

[src/aes.h src/aes.c]

2008-07-24T00:42:01.337493Z Ralph Giles

Fix some compile problems in Brian Gladman's AES implementation
and disable 'on the fly keying' routines we don't need.

[src/aes.h src/aes.c]

2008-07-23T23:29:39.935990Z Michael Vrhel

Fix for Bug 689246.  When performing interpolation, the interpolation is now performed in the source colorspace as opposed to the device space.  Custom color callback is no longer bypassed by direct concretization as it was previously.

DETAILS:

Previous code would take device color 8 bit values and do the interpolation.  That portion of the code is the same.   For cases where we have nondevice color the handling is now different.  Indexed colors are mapped to their base space and interpolated.  This is followed by a remap operation.  Device independent colors are interpolated followed by a remap operation.  

Note that for cases where there is a significant enlargement occurring and we are not in a device color space, there can be a performance cost due to current inefficiencies in our color remapping operations.  This can be costly if you have a CMYK CRD MLUT for example.  There is currently a project underway to improve the efficiency of the color flow.  For the current time, if this is an issue, improved speed can be achieved by invoking -dNOINTERPOLATION

[src/lib.mak src/gxiscale.c src/gxcolor2.h src/gximage.h src/gscindex.h src/gscolor2.c]

2008-07-23T22:52:50.086155Z Ray Johnston

Fix possible use of uninitialized variable 'mem_space'. Compute the value
when no-transparency is in effect prior to adding in the space needed for
transparency. Thanks to Michael Vrhel for spotting this.

[src/gdevprn.c]

2008-07-23T21:55:21.014656Z Igor Melichev

Fix (graphics) : Write tile id into a pattern clist (continued).

DETAILS :

Bug 689818 "Regression: Test file imagemask-with-pattern.ps fails with banding and pbmraw ".

The last patch appears incomplete, now fifing it.

[src/gxclrast.c]

2008-07-22T21:03:07.709088Z Ray Johnston

Turn off the NOISY 'VERBOSE' setting by default.

[src/rinkj/rinkj-epson870.c]

2008-07-22T18:32:34.998275Z Ray Johnston

Change the default GS_CLIENT_COLOR_MAX_COMPONENTS to 8 (down from 252).
This improves the performance for files with many images. This limits
the number of DeviceN components and the number of separations that
can be generated in the default build and causes 'limitcheck' errors
on CET tests that attempt to set a 250 component DeviceN space.

THIS IS NOT BACKWARDS COMPATIBLE, but the change in ths single file
so this can readily be rebuilt by customers that need more components
or anyone that demands conformance to this implementation dependent
result on the CET. Note that not all Adobe implementations support
250 components as CPSI does.

Currently only the tiffsep and psdcmyk devices can generate more than
8 separations, and then only when USE_COMPRESSED_ENCODING is used to
fit more than 8 components in a 64-bit color value.

This partly reverts rev 7159.

[src/gsccolor.h]

2008-07-22T14:23:25.922113Z Ken Sharp

Fix (pdfwrite): limit checking of CIDfonts for 'fixed width' property.

Details:
Bug 689963 "Infinite loop converting PostScript to PDF"

In fact the loop is not infinite, but it does take a long time. When checking to see if a
font is non-proportional, ie all glyphs have the same width, and the font is a CIDFont, we
did not stop testing when the CID exceeded the maximum CID in the font instance. Instead
we continued to the full CID range (0xffffffff). Because the TrueType code returns a
default for missing glyphs if the font was truly non-proportional then it would take a
long time to search the entire range.

(zfcid1.c): In z11_enumerate_glyph, check the requested CID against the CIDCount for the
font. Return a rangecheck if we exceed it.

I believe only pdfwrite uses this code currently.

[src/zfcid1.c]

2008-07-22T06:24:14.072316Z Igor Melichev

Fix (graphics) : Write tile id into a pattern clist.

DETAILS :

Bug 689818 "Regression: Test file imagemask-with-pattern.ps fails with banding and pbmraw ".

The old code doesn't write a tile id when writing the tile to clist,
because the clist interpreter doesn't use tile id.
This causes a failure after we implemented clist-based patterns.
While playing back a pattrn clist to a page clist writer device, 
the clist writer does need a tile id
for choosing an entry of an internal hash table.

Actually the failure happens due to a strange check 
"tile->id != gx_no_bitmap_id" in 
clist_strip_tile_rectangle in gxclrect.c ln 479.
It is not clear what it was intended for.
When a tile id is zerfo, the check skips writing tile size to clist,
so that a zerodevide happens during the clist playback.
 
We decided to provide meanful ids 
because the clist writer needs them anyway.
Fixing the check to be a subject of a separate patch
(if a fix is really necessary).

This patch simply writes tile id when the clist
is for a pattern. A new nacro IS_CLIST_FOR_PATTERN(cdev)
Defines the condition for that. 
Some internal functions change prototypes
with adding a new boolean argument for_pattern to know
whether a clist is for a pattern.

[src/gxclbits.c src/gxclist.h src/gdevprn.c src/gxclrast.c]

2008-07-21T23:23:13.534369Z Ralph Giles

Update the license statement for Kevin Hartig's hana fonts.

They are now under the SIL Open Font License 1.1 with reserved font
names Calligraphic-Hiragana and Calligraphic-Katakana.

See Bug 688674 for the relicensing declaration.

[lib/Fontmap.GS]

2008-07-21T20:22:21.005889Z Ray Johnston

Remove obsolete and probably non-working support for ancient DesqView (DOS
multi-taksing). This probably should have been dropped when we dropped 16-bit
support.

[src/dvx-tail.mak src/dvx-gcc.mak src/dvx-head.mak]

2008-07-21T18:55:31.311238Z Alex Cherepanov

Wrap string data source into a procedure when /ImscaleDecode filter is
installed, to ensure repeated reading of the string when the imagemask
needs more data than has the string. Allocate new composite objects
with the same global status as old ones. Bug 689889, customer 330.

[lib/gs_img.ps]

2008-07-18T20:53:54.538069Z Ray Johnston

Fix for Seg fault caused by wrap around of an unsigned long. Seen at 600 dpi
to pkmraw with Bug689369.pdf and -dBufferSpace=32000000.

DETAILS:

While the pdf14_trans_buffer_size was small enough, the mem_space calculation
would wrap around.

[src/gdevprn.c]

2008-07-17T20:11:52.225244Z Ray Johnston

Increase the default threshold for using the (much slower) pattern clist accumulator.
The 32Mb threshold is tolerable for most host systems and this can be modified during
the build with -DMAX_PATTERN_BITMAP_SIZE=___ (possibly using the makefile XCFLAGS).

Only embedded systems may want to set this to a smaller value.

This is a temnporary workaround for bug 689966. Improving the performance of the
pattern clist accumulator will be considered a future enhancement.

[src/gxpcmap.c]

2008-07-17T05:51:19.136291Z Ray Johnston

Update documentation to describe multi-threaded rendering (NumRenderingThreads)
and improve the documentation about the clist/banding parameters and the effect
on performance. Addresses issues raised in bug 689668.

[doc/Use.htm doc/Language.htm]

2008-07-17T02:34:01.869133Z Ralph Giles

Write pure white as a background in the pngalpha device. Bug 689934.

Details:

Russell Lang reports this caused problems originally, but it seems to 
work now, so reverting the behaviour per his request.

[src/gdevpng.c]

2008-07-16T17:19:29.238633Z Igor Melichev

Fix (transparency) : A mask buffer could left unreleased due to banding.

DETAILS :

Bug 689944 "Reference to free object".

See comment in code.

[src/gdevp14.c]

2008-07-16T15:00:17.682927Z Alex Cherepanov

Ignore out-of-range UniqueID in embedded Type 1 PDF fonts. Bug 689973.

[lib/pdf_font.ps]

2008-07-15T20:29:13.383262Z Ralph Giles

Remove the obsolete pnga device. Bug 689971.

This was a test framework used in the development of the PDF 1.4
compositor. It's no longer used.

[src/devs.mak src/gdevpnga.c]

2008-07-15T13:27:29.996709Z Alex Cherepanov

Cache the pattern instance in the PDF pattern object to prevent reprated
pattern instantiation and improve performance. Bug 689896, customer 531.

[lib/pdf_ops.ps]

2008-07-14T18:53:40.636598Z Marcos H. Woehrmann


Allows the Epson AcuLaser device output to be sent to a pipe (closes bug 689953).

Thanks to j@uriah.heep.sax.de (Joerg Wunsch) for the patch.

[contrib/eplaser/gdevescv.c]

2008-07-13T22:06:19.770532Z Henry Stiles

Rop devices now require access to an allocator instance.  Fixes crash
in running pxl fts file T326.BIN with a halftoning device.  The bug
was reported by a potential customer and a bugzilla report was never
filed.

[src/gdevrops.c]

2008-07-12T01:43:13.151852Z Alex Cherepanov

Use /.notdef instead of null in the array of PostScript names of TTF glyphs.
This saves the trouble of checking for null values and fixes a case where
a null entry slipped through. Bug 689962, customer 384.

[lib/gs_ttf.ps]

2008-07-11T23:10:56.624279Z Ralph Giles

Restore the 2_fracs image class to the psl2lib device.

It was inadvertently removed in r8828.

[src/lib.mak]

2008-07-11T23:10:55.549110Z Ralph Giles

Make the search for the most recent ghostpcl revision more robust.
Thanks to Henry Stiles for the extra quoting idea.

[toolbin/clusterpush.sh]

2008-07-11T21:10:49.148153Z Ralph Giles

Merge clusterpush changes from the ghostpcl tree.

[toolbin/clusterpush.sh]

2008-07-11T18:00:13.808434Z Ralph Giles

Check return codes of remote commands and abort if there's a problem.

Previously we continued which could confusingly return the wrong
regression report at the end if the connection drops while waiting
for the run to complete.

[toolbin/clusterpush.sh]

2008-07-11T05:06:07.316809Z Alex Cherepanov

TrueType instruction definitions (IDEF) are addressed by a single byte index. 
So there cannot be mode than 256 different instructions. Nevertheless, a
request a for larger array for instruction definitions should not be a fatal
error. Bug 689960, customer 330.

[src/ttobjs.c]

2008-07-10T23:36:00.202299Z Ralph Giles

Add the so build directories to the clusterpush exclude list.

[toolbin/clusterpush.sh]

2008-07-10T23:35:56.971501Z Ralph Giles

Move the interpolation image class from the ps2 dev to the core graphics
library so it is available to all languages.

[src/lib.mak]

2008-07-10T17:00:39.840394Z Ralph Giles

Documentation update: we support Separation, DeviceN and a number of PDF 1.7 features.

[doc/Language.htm]

2008-07-09T22:59:00.503580Z Alex Cherepanov

Use '%PDF-' instead of '%PDF-1.' to recognize PDF files because PDFsharp 0.8.2
generates '%PDF-0.0' and Acrobat accepts this. Bug 689949, customer 384.

[lib/pdf_main.ps]

2008-07-07T14:17:54.881290Z Ken Sharp

Update the documentation for the NOCIE switch, noting that this also affects the CIEBasedDEF
and CIEBasedDEFG spaces, substituting DeviceRGB and DeviceCMYK for the CIE spaces.

[doc/Use.htm]

2008-07-07T13:43:38.233194Z Ken Sharp

Fix warnings from the JPX decoder when using Visual Studio 9.

Details:
A compiler warning was disabled if the MSVC_VERSION variable was exactly 8, changed to
>7 so that it is also disabled for later versions of the compiler

[src/msvccmd.mak]

2008-07-07T08:56:59.749169Z Ken Sharp

Fix (pdfwrite): Images ina DeviceN space with more than 60 inks caused a crash.

Details:
Bug #689864 "Regression: 09-34.PS core dumps with pdfwrite"

When emitting an image, using the Flate encoder, the number of colorants in 
the DeviceN space was not checked against the maximum permitted. Since the 
encoder uses a fixed buffer whose size depends on the maximum number of inks, this
could cause a write beyond the end of the buffer.

(spngpx.h) Increase the maximum number of colorants to 256
(spngp.c) Return error if the number of colorants in the space
          exceeds the maximum permitted.

I can't check the generated PDF file, as no PDF reader seems able to open a PDF 
file with more than 32 inks, the architectural limit in the current version 
of Acrobat.

[src/spngpx.h src/spngp.c]

2008-07-06T00:45:19.690811Z Ray Johnston

Fix address/value problem. How this ever seemed to work, who knows.
Thanks to Matthias Kilian for this patch.

[src/gdevwts.c]

2008-07-04T20:35:41.686667Z Alex Cherepanov

Fix a bug in the error recovery code that handles invalid font streams.
Bug 689936, customer 661.

[lib/pdf_font.ps]

2008-07-04T18:20:44.681886Z Ralph Giles

Parse common color space keys in JPXDecode filtered images and pass them
to the filter, allowing JPX-encoded CMYK images to display properly.
Fixes bug 688807.

DETAILS:

The fundamental issue is that the jasper library does not support the
ISO 15444-2 (JPX) extensions to the JP2 format for handling full ICC
and CMYK color spaces. So while the the PDF image dictionary and the
JPX streams both specify a CMYK ICC profile describing the image, jasper
ignores the extended colr boxes and marks the image as sRGB + an unknown
component, just based on it having three or more components. Our stream
implementation used this information and tried to return RGB pixels when
the graphics library expected CMYK, causing errors or hangs.

Jasper should be amended to handle these extensions. However, since in
PDF a color space in the image's stream dictionary overrides what is in
the stream, I felt implementing the override was the more useful
resolution.

This patch doesn't handle all color spaces, just Device* and ICCBased,
which are the most common. In the case of ICCBased spaces, we try to
look up the alternate, and use that if it is a Device* space; otherwise
we guess based on the number of components.

[src/zfjpx.c src/sjpx.c]

2008-07-03T18:25:55.494578Z Ralph Giles

Clean up the state machine in s_jpxd_process.

DETAILS:

The state machine didn't always respect the calling conventions for
filter process routines, and could return '0' (more input needed) when
'last' was true (no more input exists).

Also, the jas_stream member of the filter state isn't currently
necessary and has been moved to s_jpxd_decode_image(). Originally
it was envisioned that the jas_stream could seek on the filter's
source ghostscript stream and so would need a longer lifetime than
we're currently using. This has now been simplified to a local variable.

[src/sjpx.c src/sjpx.h]

2008-07-03T18:25:54.527696Z Ralph Giles

Fix a hang in s_jpxd_process. Bug 688807.

DETAILS:

The problem file contains a CMYK JPX stream, which jasper does not
recognize, treating it as sRGB with an extra component. This causes
us to try an return 3-component data, and end up looping forever if
only a fraction of the expected pixel is available at the end of a
line.

Check for this event and return an error instead.

[src/sjpx.c]

2008-07-03T18:25:52.592596Z Ralph Giles

Remove trailing whitespace from the jpx stream implementation.

[src/sjpx_luratech.h src/sjpx.c src/sjpx.h src/sjpx_luratech.c]

2008-07-03T13:03:11.896225Z Igor Melichev

Fix (clist writer) : Indeterminizm writing a degenerate curve.

DETAILS :

Bug 689911 Shifting raster data, Windows MSVC 8 non-debug build. 

In function cmd_put_path the variable 'prev' was wrongly localized 
in the loop body when need to save/pass data from the previous cycle.
It worked fine with debug build, because the compiler 
always commits variables to RAM for debug purpose. 
With release build the variable 'prev' never changes 
because formally speaking the program never uses its value
after it is initialized.

The bug persists since the repository was created on March 9 2000.
The old behavior may be indeterministic.

With MSVC8 the effect is occasionaly visible when a degenerate curve
{x y x y x y x y} is written into clist. 
See the simplified test case attached to the bug report.

[src/gxclpath.c]

2008-07-01T10:22:25.835951Z Igor Melichev

Fix (clist writer) : The maximal compositor command size was wrong.

DETAILS :

Bug 689927 "rangecheck in c_pdf14trans_write() causing 'unregistered' error". 

The bug was introduced in revision 8587.
See comments in code.
Thanks to Ray and Marcos for participation.

[src/gstparam.h src/gdevp14.c]

2008-06-30T23:56:04.281753Z Ralph Giles

Document the output filename behavior of ps2pdf in the manpage.
Bug 689920.

[man/ps2pdf.1]

2008-06-30T18:15:51.663545Z Ralph Giles

Add a missing header dependency.

[src/lib.mak]

2008-06-30T00:05:40.080596Z Alex Cherepanov

Add one more way to store data of the reusable stream: an array of strings.
Read the input stream into an array of strings during reusable stream
construction and use the array directly as a data storage.
Bug 689476, customer 190.

[src/int.mak src/gxshade.c lib/gs_frsd.ps src/zfrsd.c]

2008-06-28T14:53:32.570212Z Alex Cherepanov

Make /?dblacute and /?hungarumlaut glyph names equivalent in Type 1 fonts.
Add a missing glyph when the font is loaded if another glyph is defined.
Bug 689014, customer 580.

[lib/gs_type1.ps]

2008-06-26T19:17:37.366443Z Alex Cherepanov

Use extended name table by default and adjust the settings to have
up to 1M names of up to 1K characters long. Bug 689913.

[src/inamedef.h src/inameidx.h src/inamestr.h]

2008-06-25T16:18:57.687888Z Marcos H. Woehrmann

Fixed compile for Linux.

[contrib/opvp/gdevopvp.c]

2008-06-24T14:16:29.258940Z Igor Melichev

Fix (graphics) : Clean image enumerator before releasing it.

DETAILS :

Bug 688845 "Segmentation Fault on EPS 2 PDF conversion", comment #38.

Adobe Illustrator creates a Postscript document, 
in which an image data procedure executes 'save',
and the corresponding 'restore' appears after the image end.
DCue to that the image enumerator is freed at a higher save level than
it was allocated, so that gs_free_object works idle. 
Nevertheless pointers must not in the structure,
because they may point to blocks already released
by the client's subclass method for end_image.
Leaving them uncleaned caused a real crash in the garbager - see bug 688845.

The patch defines the new function gs_image_free_enum,
which is intendend for a safe releasing of an image enumerator
from Postscript interpreter.
It cleans the entire subclassed enumerator,
including all possible pointers created by subclasses.
All end_image implementations,
which may be called from Postscript interpreter,
must call this function for releasing image enumerators.

The 'memory' pointer moved from subclasses to gx_image_enum_common.
We believe that in the old code all subclasses define and initialize it.

Working on this patch we suspected memory leaks 
from image enumerators with some devices.
Particularly we suspect that subclasses if gx_device_vector
(pdfwrite, ps2write, etc.) never release image enumerators (not sure).
This patch does not do any attempt to re[pair such leaks, 
because we want the new code doesn't
change the behavour too much in order to simplify the testing.
A work on leaks to be done separately.

[src/gxiparam.h src/gxidata.c src/gsimage.h src/gdevvec.c src/gximage.h src/gximag3x.c src/gdevplnx.c src/devs.mak src/gdevvec.h src/gdevpdfi.c src/gxclimag.c src/lib.mak src/gdevpx.c src/gdevtrac.c src/gdevbbox.c src/gximage1.c src/gximage3.c]

2008-06-22T06:43:28.997699Z Ralph Giles

Rename the svg device to svgwrite to avoid conflict with the SVG interpreter.

The device is still selected as -sDEVICE=svg, just the name used internally
has been changed.

[src/Makefile.in src/gdevsvg.c src/devs.mak]

2008-06-21T14:06:00.424638Z Igor Melichev

Fix (TT interpreter) : A work around a wrong maxPoints.

DETAILS :

Bug 689907 "problem reading PDF: Failed to interpret TT instructions in font 80000001".

The test csae embeds a TT font subset with an incorrect maxPoints.
This is a simple work around that.

[src/ttobjs.c]

2008-06-16T16:12:37.522247Z Marcos H. Woehrmann

Updated to latest versions of files from ftp://ftp.oreilly.com/pub/examples/nutshell/cjkv/adobe/aj16.tar.Z

Closes bug 689735.

[Resource/CMap/UniJIS2004-UTF32-H Resource/CMap/UniJIS2004-UTF16-H Resource/CMap/UniJIS2004-UTF8-H Resource/CMap/UniJISX0213-UTF32-H Resource/CMap/UniJIS-UTF32-H Resource/CMap/UniJIS-UTF16-H Resource/CMap/UniJIS-UTF8-H Resource/CMap/UniJISX02132004-UTF32-H]

2008-06-11T16:24:24.671679Z Michael Vrhel

Undoing change introduced in rev 8794.  This change will need to occur after Bug 689889 is handled.   rev 8749 introduced 37 differences in the regression.

[src/simscale.c]

2008-06-10T20:37:05.090668Z Michael Vrhel

For bug 689888.  This fixes the hang in the while loop.  If end of file occurs during the reading of the stream it is passed along by the filter.  However, proper output does not occur due to a different issue.  Another bug was opened related to this postscript noncompliance of string reading reuse in imaging operators.  See 689889.

[src/simscale.c]

2008-06-09T23:02:50.347013Z Ralph Giles

Add a modified version of the clusterpush script from the ghostpcl tree.

[toolbin/clusterpush.sh]

2008-06-09T13:46:08.406410Z Alex Cherepanov

Use a dictionary (instead of an array) to represent cmap table in
a TrueType font because the array cannot accept fonts that have both
0x0 and 0xFFFF codes. Bug 689136, customer 870.

[src/icid.h src/zfcid1.c lib/gs_ttf.ps src/zcid.c]

2008-06-09T07:33:57.606022Z Igor Melichev

Fix (stroking) : Prevent unpainted gaps between neighbour strokes that could appear due to stroke adjustment.

DETAILS :

Bug 687974 "pdf file has banding with ghostscript but not with acrobat". 

The test case includes a gradient, which is represented
as a set of paralel strokes. Due to stroke widths equals to fractional pixels, 
stroke adjustment shifts some of them so that
an unpainted gap appears between strokes and the gradient looks striped.
Note the test document is created with Quark Express 4.11 .

This patch implements a hewristic recognizer for parallel contacting strokes
and suppresses stroke adjustment for them. See comments in code 
for more details.

Note that the recognizer data are associated with a device but they
are not a device property. We store them in a device structure because
we haven't got an associated structure in the graphic state,
and we don't want to introduce one now against extra complexity
with memory management. Also the recognizer code
Appears to be distributed along multiple functions and we would like
to apply a better incapsulation. Nevertheless the encapsulation
would cause CPU time expense for multiple small function calls
unless we create new macros. So commonly we're unhappy of
this code but we don't see a better solution.

Also note that the recognizer data is copied from/to clipper
device when the stroking algorithm installs and deinstalls a clipper.
So the data actually is not a property of a device.
Also they're not a part of graphic state because they must live
across gsave/grestore (the test case requires so).

[src/gsimage.c src/gstext.c src/gxdevice.h src/gdevbit.c src/gspaint.c src/gxclip.c src/gxstroke.c src/gxdevcli.h]

2008-06-05T21:52:58.268146Z Ralph Giles

Remove the executable property from the included fonts.

[Resource/Font/URWPalladioL-BoldItal Resource/Font/NimbusRomNo9L-Medi Resource/Font/NimbusSanL-Bold Resource/Font/Dingbats Resource/Font/URWChanceryL-MediItal Resource/Font/CenturySchL-Roma Resource/Font/NimbusMonL-Bold Resource/Font/URWGothicL-Demi Resource/Font/NimbusSanL-BoldItal Resource/Font/NimbusRomNo9L-MediItal Resource/Font/StandardSymL Resource/Font/URWBookmanL-DemiBold Resource/Font/NimbusRomNo9L-Regu Resource/Font/URWGothicL-Book Resource/Font/NimbusSanL-ReguCond Resource/Font/CenturySchL-Bold Resource/Font/URWBookmanL-Ligh Resource/Font/NimbusRomNo9L-ReguItal Resource/Font/URWBookmanL-DemiBoldItal Resource/Font/NimbusMonL-ReguObli Resource/Font/NimbusSanL-ReguCondItal Resource/Font/CenturySchL-Ital Resource/Font/URWPalladioL-Roma Resource/Font/CenturySchL-BoldItal Resource/Font/URWBookmanL-LighItal Resource/Font/NimbusSanL-BoldCond Resource/Font/NimbusSanL-BoldCondItal Resource/Font/NimbusMonL-BoldObli Resource/Font/URWGothicL-DemiObli Resource/Font/NimbusSanL-Regu Resource/Font/URWPalladioL-Bold Resource/Font/NimbusMonL-Regu Resource/Font/URWGothicL-BookObli Resource/Font/NimbusSanL-ReguItal Resource/Font/URWPalladioL-Ital]

2008-06-05T00:26:20.566472Z Alex Cherepanov

Replace incorrect FontMatrix in CFF CIDFont with a most common value to
recover a PDF file that Acrobat 8 manages to shows correctly. Bug 688517.

[lib/gs_cidfn.ps]

2008-05-31T00:57:34.917939Z Alex Cherepanov

Add work-around for PDF files that misspell 'endobj' as 'endjobj'. Bug 689876.

[lib/pdf_base.ps]

2008-05-30T20:25:17.430208Z Alex Cherepanov

Dom't interpret ^D (0x04) as a self-delimeted character in PDF mode because
PDF doesn't need this hack. Bug 689875.

[src/iscan.c]

2008-05-28T21:52:03.844656Z Igor Melichev

Fix (True Type font loader) : Work around incorrect numGlyphs (continued).

DETAILS :

Bug 689516 "problem reading PDF: Failed to interpret TT instructions (ref 7814)".
Bug 689866 "Regression: with TrueType fonts (possibly related to loca); file Bug688467.ps" 

The last patch appears to cause a conflict with the revision 5707 change.
which introduced a hewristic for reapring fonts with unsorted loca.
When sortinmg the full loca (including glyphs behind numGlyps), the test cases
of bugs 688467 and 688461 cause overlapping glyphs,
so that the hewristic gives a wrong glyph length.

This patch improves the hewristic with checking the glyph length
obtained from the unsorted loca, and replaces it only if it looks incorrect.
f
which may need further adjustments.

[src/gstype42.c]

2008-05-28T18:16:26.144495Z Ralph Giles

Correct properties.

[src/sidscale.h src/sjbig2_luratech.h src/sjpx_luratech.h src/sidscale.c src/sjbig2_luratech.c src/sjpx_luratech.c]

2008-05-28T16:04:01.772433Z Marcos H. Woehrmann

Changed crlf to lf.

[src/sidscale.h src/sidscale.c]

2008-05-28T02:38:35.559910Z Alex Cherepanov

Fix a typo introduced in the rev. 8146 that prevented running PDF files from
stdin. Bug 689847.

[lib/pdf_main.ps]

2008-05-28T00:27:23.734030Z Michael Vrhel

Fix to enable proper custom color callback when indexed images with ICC profiles are used.  Bug 689863.

[src/lib.mak src/gscolor2.h src/gxcie.h src/gsciemap.c src/gscolor2.c]

2008-05-27T20:12:08.164024Z Michael Vrhel

Addition of debug code to dump embedded ICC profiles for external analysis.

[src/gsicc.c]

2008-05-27T17:07:40.221072Z Alex Cherepanov

Enable printafm to emit a comment with UniqueID, that may be of some use when
investigating versions of fonts used. Thanks to Michail Vidiassov for the
patch. Bug 688610.

[lib/printafm.ps]

2008-05-26T19:04:05.563476Z Ralph Giles

Work around broken JBIG2Decode streams created by several versions of
Xerox WorkCentre. Bugs 689841 and 689852.

In these streams, a segment data length field is written as -1
expecting the decoder to infer it from the length of the remaining
data.

[jbig2dec/jbig2_page.c]

2008-05-25T07:28:53.119264Z Igor Melichev

Fix : MSVC warnings.

DETAILS :

Removed an extra debug printing that prints an unutialized variable.

[src/gdevpx.c]

2008-05-25T07:23:38.027951Z Igor Melichev

Fix (True Type font loader) : Work around incorrect numGlyphs.

DETAILS :

Bug 689516 "problem reading PDF: Failed to interpret TT instructions (ref 7814)".

The bug report supplies a PDF document, which embeds a TT font
with a too small numGlyphs. The loca table contains more glyphs and 
they are referenced in a text. The font is incorrect, but Acrobat handles the document.

This patch checks whether there are glyphs behind numGlyphs and 
extends numGlyphs to cover them. Also improved error handling in ttfmain.c .

Besides that, now we print a warning about an incorrect numGlyphs
in release build. The olkd code did with debug buil only.
I believe that users need to know whether a font is broken, and that
its rendering is hewristic.

[src/gstype42.c src/ttfmain.c]

2008-05-25T05:45:15.665594Z Alex Cherepanov

Revert the rev. 8509 because it is not needed after rev. 8774 but interferes
with FONTPATH search and memory font resources. Bug 689637.

DETAILS:
Since embedded PDF fints are now not registered as resources, there's no
need to distinguish between disk and memory font resources. Embedded fonts
bypass resource machinery; non-embedded fonts are loaded by name.

[lib/pdf_font.ps src/zfont.c]

2008-05-25T04:28:23.450067Z Alex Cherepanov

Continue the changes started by the rev. 8772. Remove one more definefont from
embedded TrueType font loader. Bug 689644, customer 243.

[lib/gs_ttf.ps]

2008-05-25T02:17:14.504731Z Alex Cherepanov

Change all shell scripts to treat a single dash '-' as a positional
parameter rather than an option. Bug 689846.

[lib/eps2eps lib/ps2ps lib/dumphint lib/ps2ps2 lib/dvipdf lib/pdfopt]

2008-05-23T05:05:20.013100Z Alex Cherepanov

Use embedded PDF fonts directly. Don't define them as resources and look them
up later by the name. Leave findfont operator for fetching non-embedded fonts
only, which are now unaffected by embedded fonts. Bugs 689510, 689514 from
customer 700.

DETAILS:
CIDFont resources should be handled in a similar way but this part
is not yet implemented.

[lib/pdf_font.ps lib/pdf_ops.ps]

2008-05-23T00:13:50.314402Z Ralph Giles

Implement sync_output as cairo_flush. Patch from Behdad Esfahbod.

[src/gdevcairo.c]

2008-05-22T18:06:22.983939Z Igor Melichev

Enhancement (graphics) : Delay applying type 1 raster patterns until clist interpretation (continued 4).

DETAILS :

The old code assumes that a pattern always fits into the clist writer buffer.
However ppmraw -r400 176-01.ps violates this assumption.
This patch implements a subdivision of a pattern into slices,
each of which is smaller than the buffer size.

1. The new function cmd_get_buffer_space retrives maximal available space
   in the clist writer buffer (gxclutil.c).

2. cmd_put_drawing_color now implements a cycle for slicing big patterns.
   Each slice writes to clist as a separate clist instruction (gxclpath.c).

3. gx_dc_pattern_write_raster drops the constraint that the pattern
   fits into a single buffer (gsptype1.c).

4. The clist interpreter is enhanced with composing a pattern from slices
   (gxclrast.c).

[src/gsptype1.c src/gxcldev.h src/gxclrast.c src/gxclpath.c src/gxclutil.c]

2008-05-22T09:52:18.876353Z Igor Melichev

Enhancement (graphics) : Delay applying type 1 raster patterns until clist interpretation (continued 3).

DETAILS :

Bug 689856 "Regression: 09-34.PS core dumps when banding".

Uninitialized fields in device color after restoring a pattern from clist.
Debugged with
..\..\gs-hd\bin\gswin32c.exe -IF:/AFPL/gs-hd/lib;f:\afpl\fonts -r300 -K1000000 -dMaxBitmap=10000 -dNOPAUSE -dBATCH -sDEVICE=pbmraw -sOutputFile=cur.ppm H:\AuxFiles\CET\09-34.PS

[src/gsptype1.c]

2008-05-21T19:46:53.581581Z Ray Johnston

Change parameters to gdev_prn_allocata_mesmory to explicit width and height to work
around a (suspected) bug in gdev_prn_allocate when new_width and new_height are 0
and the page has transparency. That issue will be adddressed separately.
Crash with multi-threaded rendering reported by customer #850.

[src/gxclthrd.c]

2008-05-21T19:46:47.112573Z Ralph Giles

In r8765 we concluded GS_IMAGE_MAX_PLANES was the same as
MAX_COMPONENTS. Make this change permanent by removing the
MAX_PLANES define entirely.

[src/gsimage.c src/zimage.c src/gxiparam.h src/gdevbbox.c src/gxidata.c src/gximage.c src/gsiparam.h src/gxclimag.c]

2008-05-21T19:46:43.711424Z Ralph Giles

Remove the lowercase "compatibility" versions of the GS_IMAGE_MAX_*
macros.

[src/zimage.c src/gdevtxtw.c src/gsimage.c src/gxiparam.h src/gxidata.c src/gximage.c src/dxmainc.c src/gdevpdtv.c src/gdevpdfb.h src/gdevpdtv.h src/macsystypes.h src/gdevmacttf.h src/gp_mac.h src/gxclimag.c src/iimage.h src/gxsamplp.h src/gdevmacxf.c src/gdevmac.c src/gsiparam.h src/gdevmac.h]

2008-05-21T19:05:31.529144Z Ray Johnston

Reduce the GS_IMAGE_MAX_PLANES to a sane number. The image cannot have more
planes than the number of CLIENT_COLORS we support (plus 1 for alpha).
This cures a stack overflow seen with the multi-threaded rendering on
Windows.

[src/gsiparam.h]

2008-05-21T18:27:42.905572Z Michael Vrhel

Fix for 689811.  Enables custom color callback when banding of images is occurs.

DETAILS:
This was a simple fix which puts the callback structure address into gslib_ctx instead of in the graphic state.  This fixes the customer's issue.  The postscript interface for custom color remains as it was with this commit.  Soon, in the future, we will be changing to a C API interface.  There does remain an issue with respect to object type tagging.  If high level images occur with banding, the object type is different than if there was no banding.  Opening a new bug in regard to this.

[src/gsnamecl.h src/gslibctx.c src/gxcmap.c src/iapi.c src/gslibctx.h src/gsncdummy.c src/gsciemap.c src/gscspace.c src/gsicc.c src/gscdevn.c src/gsnamecl.c src/gscie.c]

2008-05-21T18:13:13.037917Z Ralph Giles

Credit Behdad in the source.

[src/gdevcairo.c]

2008-05-21T13:42:08.542151Z Igor Melichev

Fix (Type 1 hinter) : The missed flex hewristic malfunctioned.

DETAILS :

Bug 689821 "SegFault in gxhintn.c".

The old code is buggy with a wrong index advance along a cyclic buffer range.

[src/gxhintn.c]

2008-05-21T10:12:14.199391Z Igor Melichev

Enhancement (graphics) : Delay applying type 1 raster patterns until clist interpretation (continued 2).

DETAILS :

Bug 689848 "C stack overflow on Windows and hang on linux 176-01.ps".

A patch from Ray, which eliminates an infinite recursion in the clist writer.
A further improvement is coming soon about noodling the big data 
while copying a pattern into a page clist.

[src/gxclutil.c]

2008-05-21T06:46:41.280250Z Ray Johnston

Ensure that the chunk wrapper is used on the non_gc allocator since doing GC
on chunks will be disastrous. This is protection only and causes no difference
since the only current client of the chunk wrapper is the multi-threaded clist
rendering which wraps non_gc_memory.

[src/gsmchunk.c]

2008-05-21T06:40:14.466289Z Ray Johnston

Upon one of our engineer's request, clean up the MSVC warning about use of an
uninitialized variable.

[src/gxclthrd.c src/gxclist.h src/gxclread.c]

2008-05-21T06:35:34.826889Z Ray Johnston

Add some missing information for the clist multi-threaded rendering files and
the chunk memory wrapper. This cleans up (som of) the nightly regression nags.

[doc/Develop.htm]

2008-05-21T01:37:08.729158Z Ralph Giles

Fix the autoconf build when libcairo isn't available.

The device properly disabled in r8752.

[src/configure.ac]

2008-05-21T01:26:49.215021Z Ralph Giles

Set properties on the new cairo device source file.

[src/gdevcairo.c]

2008-05-21T01:24:45.439819Z Ralph Giles

Whitespace cleanup. Also comment out the warning about setlogop; this
isn't important for most documents.

[src/gdevcairo.c]

2008-05-21T01:24:44.147836Z Ralph Giles

Don't compare a NULL extension string.

[src/gdevcairo.c]

2008-05-21T01:24:42.046903Z Ralph Giles

Rename the cairo device parameter CairoSurface to CairoOption.

Better handling of libcairo errors.

Add (untested) support for passing a libcairo context pointer
through the CairoContext device parameter for rendering to a
client drawable.

Details:

CairoSurface was renamed with the expectation that it will in
the future take additional options that might not be surface
specific. Also, the CairoSurface name was chosen with the idea
that a client could pass a pointer to an already allocated
cairo_surface_t, but it's just as easy to pass the result
of calling cairo_create() on such a surface as a context
pointer. Therefore we've added CairoContext and renamed the
old CairoSurface parameter to CairoOptions.

The new command line would be:

 gs -sDEVICE=cairo -sCairoOptions=ps -o - test.ps

to set the output format to ps.

[src/gdevcairo.c]

2008-05-21T01:24:40.923940Z Ralph Giles

Protect the use of pkg-config for libcairo.

[src/configure.ac]

2008-05-21T01:24:38.762206Z Ralph Giles

New 'cairo' output device using the libcairo graphics library.
Patch by Behdad Esfahbod.

Details:

This output device uses the LGPL cairo library to create file output in
a variety of formats. Currently supported are png, svg, pdf, ps, eps.

The output format can be specified with the CairoSurface device
parameter. If this parameter isn't set, the device will guess
based on the filename extension given in OutputFile. Thus, these
two command lines are equivalent:

gs -sDEVICE=cairo -sCairoSurface=svg -o tiger.svg examples/tiger.eps
gs -sDEVICE=cairo -o tiger.svg examples/tiger.eps

Other output formats are selected like so:

gs -sDEVICE=cairo -o tiger.png examples/tiger.eps
gs -sDEVICE=cairo -o tiger.pdf examples/tiger.eps
gs -sDEVICE=cairo -o tiger.ps examples/tiger.eps

Only vector drawing is implemented at this point; images and text are
handled by fallback and will not give compact results. The resolution
for rasterization is set by the -r parameter as usual.

[src/Makefile.in src/configure.ac src/gdevcairo.c src/devs.mak]

2008-05-20T20:34:52.772461Z Ray Johnston

Add double inclusion protection to cure nag from nightly regression.

[src/gsmchunk.h src/gxclthrd.h]

2008-05-20T16:18:40.306550Z Ray Johnston

Clean up properties to get rid of nightly regression warnings.

[src/gsmchunk.c src/gxclthrd.c src/gsmchunk.h src/gxclthrd.h src/gdevsvg.c]

2008-05-20T00:52:25.121469Z Alex Cherepanov

Consider Index object in CFF font as empty if the offset element size is
incorrect. Bug 689854, customer 580.

DETAILS:
The rationale behind this decision is that the index is, probably,
not used when it is malformed but the file survives in the wild.

[lib/gs_cff.ps]

2008-05-19T14:47:52.443966Z Igor Melichev

Enhancement (graphics) : Delay applying type 1 raster patterns until clist interpretation (continued).

DETAILS :

Bug 689807 "segfault with 09-34.PS".

The last patch for the subject appears incomplete.
This one allows to write and read null patterns.
Debugged with 09-34.PS .

[src/gsptype1.c]

2008-05-17T21:33:47.003946Z Alex Cherepanov

Permit opening of temporary files in the safe mode. Fix /invalidaccess
error during interpretation of PDF 1.7 file collections in the safe mode.
Bug 689847.

[lib/pdf_main.ps src/zfile.c]

2008-05-17T12:58:01.814886Z Alex Cherepanov

Ignore annotation appearance stream when it has a wrong type i.e. not a
dictionary. Bug 689839.

[lib/pdf_main.ps lib/pdf_base.ps lib/pdf_draw.ps]

2008-05-17T01:02:02.764582Z Alex Cherepanov

Replace various access techniques to PDF annotations with 'knownoget'
in preparation to fix the bug 689839.

[lib/pdf_draw.ps]

2008-05-16T23:34:14.372367Z Ralph Giles

Add support for linecap/join and miterlimit.

[src/gdevsvg.c]

2008-05-16T12:48:24.645580Z Alex Cherepanov

Use PDFScanRules to scan ToUnicode CMap. Fix a case where CMap stream has
a name starting with 2 slashes that should not be parsed as an immediately
evaluated name. Bug 689642, customer 870.

[lib/pdf_font.ps lib/pdf_base.ps]

2008-05-16T00:05:42.149140Z Ralph Giles

Accumulate imaging state changes and write a new group only when
drawing. Add support for the linewidth parameter. We're pretty
close to properly handling tiger and other vector-only files.

[src/gdevsvg.c]

2008-05-16T00:05:41.073469Z Ralph Giles

Correct stroke and fill attribute overrides based on the path type.

Also includes some whitespace cleanup.

[src/gdevsvg.c]

2008-05-16T00:05:40.066267Z Ralph Giles

Store clipping rectangles as a clip path and ignore other non-drawing
paths.

[src/gdevsvg.c]

2008-05-15T21:24:13.840635Z Ralph Giles

Set the document size and scale based on the page size and resolution
from the device parameters.

[src/gdevsvg.c]

2008-05-15T21:24:12.705572Z Ralph Giles

Return proper negative error codes on allocation failure.

Also some minor formatting.

[src/gdevsvg.c]

2008-05-15T21:24:11.342484Z Ralph Giles

Be explicit about clearing the current fill or stroke color when
none is set.

[src/gdevsvg.c]

2008-05-15T16:17:48.102316Z Michael Vrhel

Fix for previous commit.  I had the wrong version number test in the define.

[jbig2dec/config_win32.h]

2008-05-15T16:12:17.999197Z Michael Vrhel

Minor change in JBIG configuration file related to using Visual Studio Version 9 (2008).  stdio.h has a definition for vsnprintf which conflicts with the define in config_win32.h

[jbig2dec/config_win32.h]

2008-05-15T00:00:24.616940Z Marcos H. Woehrmann

Improve white-on-mask drawing mode.

Details:

This patch is provided by Hin-Tak (see bug 688372); his comments:

This is a patch which I have created, to make the pxlmono/pxlcolor driver
bebaves much better in the white-on-mask situation, without breaking
normal drawing.

I haven't quite work out all the details nor understand the
reverse-mask-draw code properly yet, but this patch improves the situation
a great deal, to the point all the icons are shown correctly except for
having its background draw solid white rather than transparent

[src/gdevpx.c]

2008-05-14T23:49:09.954483Z Marcos H. Woehrmann


Add support to pxlcolor and pxlmono for 24 bpp images.

Details:

Previous to this revision the pxlcolor and pxlmono devices would revert
to using gx_default_begin_image() when bits_per_pixel==24, resulting
in very large images.  Now the image data is written directly into the
pxl stream.  In the case of pxlmono the image is converted to 8 bpp via
the lum_*_weight values from gxlum.h.

[src/gdevpx.c]

2008-05-13T19:52:08.912983Z Ralph Giles

Fix an incorrect curveto coordinate.

[src/gdevsvg.c]

2008-05-13T18:47:23.939753Z Ralph Giles

Disable drawing in the SVG output device after the first output_page call.

Even for single-page output we receive an erasepage fill after the showpage
from gdevvec, which overwrites whatever we've drawn. This should be avoided
in a more sophisticated way (ideally in the superclass) but this method is
helpful for current development.

[src/gdevsvg.c]

2008-05-13T18:47:23.279847Z Ralph Giles

Support setting stroke and fill colors.

[src/gdevsvg.c]

2008-05-13T18:47:21.967012Z Ralph Giles

Import the current state of the svg driver. Doesn't work.

[src/Makefile.in src/gdevsvg.c src/devs.mak]

2008-05-13T03:58:10.005759Z Alex Cherepanov

Reduce generation of garbage and the time spent on garbage collection by
placing gstate into the 2nd element of the patterm implementation array
in Adobe compatibility mode only. Ghostscript doesn't use this gstate
at all. Bug 689488.

[lib/gs_lev2.ps src/zmisc.c]

2008-05-11T17:00:17.181464Z Alex Cherepanov

Fix a bug that leaves a junk value on the stack for every empty row on the
page during execution of a redefined showpage. Bug 689832.

DETAILS:
The bug was introduced in rev. 2602 and stayed undetected for a while because
most files don't depend on the contents of the operand stack after executing
showpage.

[lib/ps2epsi.ps]

2008-05-10T22:02:03.546959Z Alex Cherepanov

Ignore OutputIntent attribute if it is not an array; recover a broken PDF file.
Bug 689831.

[lib/pdf_main.ps]

2008-05-09T16:44:54.615805Z Ray Johnston

Fix missing dependency that caused builds that included the 'bmpa' devices
to fail because the locking memory code wasn't included. Currently PCL
builds still had the bmpa devices included, so they failed.

[src/lib.mak]

2008-05-09T14:00:44.027651Z Ralph Giles

uncodes 33 and 34 repeat a zero code length symbol id, not the previous
symbol like runcode 32. Bug 689824.

Thanks to Justin Greer for the fix.

[jbig2dec/config.h jbig2dec/configure jbig2dec/jbig2_text.c]

2008-05-09T04:12:01.814716Z Alex Cherepanov

Reject incorrect ICC profile that has 0 offset in one of the tags
and use alternate color space. Bug 689830.

[icclib/icc.c]

2008-05-09T02:18:14.475665Z Ray Johnston

This is the "final" merge of the mtrender (multi-threaded clist rendering)
branch into the trunk. The default behavior is still the same, i.e., the
clist rendering is done in the same thread as the parsing (main thread).

The 'gsmalloc' memory allocator now ALWAYS uses a mutex to lock accesses
in case it is used by a multi-threaded client. This was determined to
result is less than 1% performance hit on a single threaded client.

Refer to the log messages on the mtrender branch for details on the
design of the multi-threaded clist rendering, but the summary is that
-dNumRenderingThreads=# (default 0) determines the number of background
threads REQUESTED for rendering bands. If the platform doesn't support
threads, or if there is an error starting the threads from the clist_
get_bits_rectangle_mt hook, single threaded rendering will be used.

The number of threads may be less than the requested number if the
number of bands is less than the request, or if there is an error
setting up threads (as many as can be created, up to the request will
be used). The -Z: debug switch emits status messages indicating how
many threads are requested (-dNumRenderingThreads) and the number that
is actually used.

Many files show little if any improvement with multi-threaded clist
rendering since they are dominated by the clist writing time, or by
the time required to write the output. No files seen to date show a
performance hit greater than aobut 3%. Setting NumRenderingThreads
to a count higher than the number of CPU cores available does not
seem to help or hurt much, but there is overhead (per page) with
starting threads and allocating band buffers, so a very large count
is not productive.

The best performance seen on an Intel Core 2 Duo system, on a
particular file is about a 75% performance improvement (completing
the page in 57% of the single threaded time). This time did not
include writing a file (output to /dev/null).

In order to prevent memory mutex (locking) contention from slowing
down multi-threaded clist rendering, each thread uses a 'chunk'
wrapper on NON-GC the non-gc memory allocator. Each chunk allocator
is thread-safe/instantiated, so the locking only occurs on chunk
allocations to the wrapped (target) memory allocator.

The 'BAND_LIST_STORAGE=mmeory' option has been supplemented to allow
multiple concurrent threads to read the clist 'memfile'.

The "autoconf" files (configure.ac and Makefile.in) have been improved
to hook the 'posix' pthreads if available, so linux and Mac OS/X will
be able to support the multi-threaded clist rendering.

[src/gxclist.c src/gsmemlok.c src/gsmchunk.c src/gxclthrd.c src/gxclist.h src/configure.ac src/gsmchunk.h src/gxclthrd.h src/gxclread.c src/lib.mak src/gxclmem.c src/gxclmem.h src/gsmalloc.c src/Makefile.in src/gdevprn.c src/gsmalloc.h src/gdevprn.h]

2008-05-08T21:47:07.355557Z Ray Johnston

Use 'realtime' instead of 'usertime' for -Z: timing information. On some
systems (Windows) these are equivalent, but on linux, 'usertime' is the
time for the current thread which interferes with timing collection on
different threads (multi-threaded rendering did not include any time for
the threads). INCOMPATIBLE CHANGE, but this is only debug info.

[src/imain.c]

2008-05-08T21:28:30.163536Z Ray Johnston

Allow some compile time constants that affect performance to be set as
/D compiler flags (via XCFLAGS makefile macro).

MAX_BITMAP_PATTERN_SIZE controls when the clist pattern accumulator is used,
and on machines with a decent amount of RAM, the default of 1 Mb is too
small and causes the slower clist method to be used too often. Setting this
to 32 Mb is probably better on hosts.

The GS_CLIENT_COLOR_MAX_COMPONENTS default of 252 is needed for Adobe CPSI
compatibility and for RIPS that want to use a large number of DeviceN
colorants, but this increases the size of some allocations and slows down
performance and is much too large for printers. Setting this to 6 or 8 is
probably plenty.

[src/gxpcmap.c src/gsccolor.h]

2008-05-08T20:09:32.433652Z Ray Johnston

Fix MSVC warning -- mismatched type.

[src/zchar42.c]

2008-05-08T19:56:33.932490Z Ray Johnston

Fix gcc warnings, unused variables and type mismatch, implicit declaration.

[src/gximask.c src/gp_unix.c]

2008-05-08T19:35:26.683268Z Ray Johnston

Clean up gcc compiler warnings for unused 'st' and no prototype for
gx_pattern_cache_free (from gxpcolor.h).

[src/gxclrast.c]

2008-05-08T19:10:40.329127Z Ray Johnston

Add support for recursive mutex on posix. Multiple threads that perform
'locking' before calling an object's finalize need this to prevent
deadlock if the finalize calls 'free'. This protection is standard on
Windows, but PTHREAD_MUTEX_RECURSIVE attribute is not available on
many systems.

The method, using pthread_self and pthread_equal, was extracted from
a web information page and tested on linux.

NB: The multi-threaded clist rendering no longer needs this since
the 'chunk' memory wrapper calls the 'finalize' function without
locking, so the deadlock no longer occurs.

[src/gp_psync.c]

2008-05-08T18:56:10.922303Z Ray Johnston

Fix memory leak observed with DEBUG=1 build on mtrender branch. The
'levels' and 'bit_data' of halftones were being leaked when halftones
were set by the clist reader.

DETAILS:

Since the 'dht.rc' was filled with 0's, the rc.memory would cause the
gx_imager_dev_ht_install to copy the order (mem_diff would be true).
The gx_ht_copy_ht_order would make a copy, but the one passed in
was never freed. Since the 'src' component information was cleared
during the install, gx_ht_read_and_install needs to save a copy of
the components so that the orders can be released.

[src/gxdhtserial.c]

2008-05-08T18:40:31.637800Z Ray Johnston

Fix compiler warning due to missing prototype for strncmp.

[src/zchar42.c src/int.mak]

2008-05-07T21:07:53.236295Z Igor Melichev

Enhancement (graphics) : Delay applying type 1 raster patterns until clist interpretation.

DETAILS :

Bug 689579 "Ghostscript generates a very, very large temporary file".

The old code converts pattern fills into lots of constant color rectangles while writing to clist.
The new code writes pattern data to clist and apply pattern during the clist playback.
So here we complete the change started in revision 8655.

New functions gx_dc_pattern_write_raster, gx_dc_pattern_read_raster
implement color serialization for raster patterns.
The old function gx_dc_pattern_write got minor changes about buffer localization.

Minor chabge (gxclimag.c, gxclpath.c, gxclrect.c) : Propagated error codes.

Also fixed a bug occasionally found in gxclrast.c . 
It caused a crash in some unusual conditions.

[src/gsptype1.c src/gxclrast.c src/gxclpath.c src/gxclimag.c src/gxclrect.c]

2008-05-07T21:02:16.625138Z Igor Melichev

Fix (graphics) : Wrong pattern phase when pattern applies to a band with non-zero origin.

DETAILS :

The old code computes pattern phase modulo rep_width, rep_height.
It appears wrong when pattern step is much bigger than the pattern bbox.
Really the bbox determines the painting area as rep_width, rep_height,
but the phase to be computed modulo pattern step.
Besides that, the old code aplies a wrong sign, which is oposite to a band offset.

This bug has no effect with Postscript interpreter, because 
currently patterns never apply after banding,
but it will change with the next patch.
With no banding the phase is always zero.

Other interpreters may need additional improvements
(we suspect they are bug-to-bug compatible).

[src/gsptype1.c]

2008-05-07T09:15:27.593615Z Igor Melichev

Fix (graphics) : Imprecise pattern phase with negative cell origins (continued).

DETAILS :

The old code inaccurately converts floats to integers.
The problem here is that (int)-0.13 == 0 but the math wants -1.
It causes a 1 pixel bias with negative coordinates when argument is not integer.
This isn't a first time when we fix a bug of this kind,
and likely this one is not the last.

This change is important for bug 689579.

Debugged with the following commands :

gswin32c.exe -dMaxBitmap=22000000  -r300 -dNOPAUSE -dBATCH-sDEVICE=ppmraw -sOutputFile=cur-b.ppm 245-07.ps
gswin32c.exe -dMaxBitmap=100000000 -r300 -dNOPAUSE -dBATCH-sDEVICE=ppmraw -sOutputFile=cur-n.ppm 245-07.ps

They must render same raster, but they didn't.

[src/gxp1fill.c]

2008-05-07T06:25:34.508384Z Alex Cherepanov

Repait yet another broken PDF file that abbreviates /Indexed to /I
in the color space array. Bug 689815.

[lib/pdf_draw.ps]

2008-05-06T20:59:54.208603Z Alex Cherepanov

Fix and simplify implementation of operator Q. Collecting the path with
the current ctm and re-playing it with the restored ctm transforms the
path exactly as PDF needs. Bug 689812.

[lib/pdf_ops.ps]

2008-05-05T19:51:17.293996Z Ray Johnston

Eliminate leaks caused by lost 'maskbuf' elements. Only the uppermost
maskbuf is (currently) used by the pop_transparency_group that applies
the mask, but the chain of maskbuf->maskbuf elements was never freed.
This also improves performance (at least for the test case of bug
689534). Customer #870.

[src/gdevp14.c]

2008-05-02T20:13:50.255816Z Igor Melichev

Fix (graphics) : Imprecise pattern phase with negative cell origins.

DETAILS :

The old code inaccurately converts floats to integers.
The problem here is that (int)-0.13 == 0 but the math wants -1.
It causes a 1 pixel bias with negative coordinates when argument is not integer.
This isn't a first time when we fix a bug of this kind,
and likely this one is not the last.

This change is important for bug 689579.
Here is a test for debugging it :

<<
  /PaintType 1
  /PatternType 1
  /TilingType 1
  /BBox [0 0 60 60]
  /XStep 40
  /YStep 60
  /star
  { gsave
    0 12 moveto
    4
    { 144 rotate
      0 12 lineto
    } repeat
    closepath
    fill
    grestore
  }
  /PaintProc
  { begin
    1 0 0 setrgbcolor
    15 15 translate
    star
    0 0 1 setrgbcolor
    30 30 translate
    star
    0 1 0 setrgbcolor
    -30 0 translate
    star
    30 -30 translate
    star
    end
    %.break
  } 
>>
[1 0 0 1 0 0]
makepattern
/Star4 exch def

/Pattern setcolorspace
Star4 setcolor

clippath pathbbox 
exch pop 30 exch
4 copy = = = =
rectfill

showpage

The old code gives different rasters for this test while banded and unbanded rendering.

[src/gxp1fill.c]

2008-05-02T08:07:50.475340Z Ken Sharp

The revision 8621 which reinstated the comments, and updated encs2c.ps to generate them,
placed the Id line in the wrong position relative to the licence and summary comments.

[toolbin/encs2c.ps src/gscedata.h src/gdevpdtv.c src/gdevpdtv.h src/gscedata.c]

2008-05-02T02:19:57.012115Z Ralph Giles

Remove the testing instructions and file index.

This was mostly obsolete, and the automated tests are fairly complete now.

[doc/Testing.htm doc/Readme.htm toolbin/tests/check_docrefs.py]

2008-05-02T01:42:14.506521Z Ralph Giles

Fix various code policy warnings.

[toolbin/msvcxml.bat src/gdevdjet.c src/aes.h toolbin/memory.py src/aes.c]

2008-04-30T19:06:59.803995Z Ralph Giles

Fix some warnings.

[src/gsncdummy.c]

2008-04-30T04:51:02.115275Z Michael Vrhel

Fixed issue with NULL pointer in gsncdummy.c when ICC color space was used in custom color callback.  Also, made the object based coloring an option define and fixed minor header issues.

[src/lib.mak src/gxcmap.c src/gsncdummy.c src/gscspace.c src/gscdevn.c src/gsnamecl.c]

2008-04-30T01:35:18.247997Z Ralph Giles

Fix some warnings.

[src/gdevp14.c]

2008-04-29T06:34:17.581619Z Michael Vrhel

Fix for bug 689806 which was introduced when fixing bug 689803.  The current bug was related to a CIELAB image with a colorspace ICC profile (LAB to LAB).  The image data was incorrectly being normalized between 0 and 1 (float). It is now properly normalized to the range of the CIELAB ICC space.  There still exists an issue with this file as absolute colorimetry should be used.  This is the source of the current difference between AR and GS.  However, the image is no longer black now but should match the GS result prior to rev 8664.

[src/lib.mak src/gxicolor.c]

2008-04-29T00:31:25.778368Z Alex Cherepanov

Make pf2afm utility friendlier to Windows users: check for .pfa or .pfb
extensions case-insensitively and accept backslash as a path separator.
Bug 689804.

[lib/pf2afm.ps]

2008-04-28T17:48:26.844493Z Alex Cherepanov

Refine calculation of di member of a trap_line structure to avoid integer
overflow when the source operands are big. Bug 689448.

[src/gdevddrw.c]

2008-04-28T16:26:35.071571Z Ralph Giles

Fix a minor header dependency skew.

[src/int.mak src/gsicc.c]

2008-04-28T06:47:28.650051Z Michael Vrhel

Undo accidental commitment of ENABLE_CUSTOM_COLOR_CALLBACK (has callback) code.

[src/gsicc.c]

2008-04-28T05:20:54.026239Z Alex Cherepanov

Implement spacial handling of transfer functions during Gray to CMYK
conversion: ignore transfer functions for non-black components. Bug 688360.

DETAILS:
On this topic, section 7.3 of PRLM-3rd (page 494) says:
"Note: When the current color space is DeviceGray and the output device's
native color space is DeviceCMYK, the interpreter uses only the gray transfer 
function. ... This special case exists for compatibility with existing
applications." There is a similar comment in section 6.3 of the PDF 1.6
spec. (page 456).

[src/lib.mak src/gxcmap.c src/gxcspace.h src/gscspace.c src/gxdevcli.h]

2008-04-27T15:21:10.051210Z Alex Cherepanov

Check the error code early. Fix a SEGV in PDF file with invalid ICC profile
that was introduced by the rev. 8664.

[src/zicc.c]

2008-04-26T04:35:56.962801Z Michael Vrhel

Fix for bug#689803.  Set bounds correctly when input data is LAB and color also includes a colorspace source profile (e.g. LAB to LAB).

[src/int.mak src/gsicc.c src/zicc.c]

2008-04-23T14:06:11.166309Z Igor Melichev

Fix (graphics) : Convert imagemask into a clipping path when painting a big pattern.

DETAILS :

Bug 689440 "PostScript file generates infinitely large temp file".

In the past we implemented a conversion of imagemask intoi a clipping path 
for a faster painting a shading color. Now we do same for big type 1 patterns.

1. Enhanced the condition in gximask.c for passing big patterns.

2. In gximask.c filter out degenerate rectangles, 
   which can't be painted with gx_device_color_fill_rectangle.

3. Set a pure black color in gsimage.c, 
   because patterns can't convert with gx_device_black.

4. In gxacpath.c added the default copy_mono method 
   to the clip list accumulator device in order to handle 
   imagemask with the pure color set by (3).

5. In gximask.c added a proper setup of device width and height
   to clip list accummulator, because gx_default_copy_mono needs them.

6. In gximask.c gx_device_retain is now called on errors.
   The old code does not call it, and we think it caused memory leaks
   in some rare cases.

This patch changes the behavior with shadings, because the old code paints
imagemask with the shading color to clip list accummulator.
The new code does with pure black, so that now the clipping is not
restricted with the shading area or the shading BBox.
But we believe that the final result should be same 
and the performance should be some faster.

Note we keep the call to gx_dc_pattern2_clip_with_bbox_simple
in gx_image_fill_masked_end rather now it is always idle.
Doing so for the case if this change will need undoing for shadings.

The new code doesn't use the writing of big patterns into clist,
which was done with recent revision 8655. 
That change appears unneccessary for this particular bug. 
However we want to keep it in HEAD branch because it may be useful 
for further impeovements when imagemask produces a too big clipping list.

This patch causes a minor raster difference with Bug688396.pdf .
Delaying it for better times.

[src/gsimage.c src/gxacpath.c src/gsptype1.h src/gximask.c]

2008-04-23T00:30:10.271302Z Alex Cherepanov

Since we always write a complete "classic" xref, the Trailer may need to be
adjusted: (1) remove keys that pertain to xref-streams and hybrid-xref PDFs;
(2) if it's a PDF stream, turn it into a PDF dict by removing keys used for
PDF streams (both standard and GS-specific), and the executable attribute.
Thanks to SaGS for the patch. Bug 688152.

[lib/pdfwrite.ps lib/pdfopt.ps]

2008-04-22T17:18:03.467843Z Ralph Giles

Set native line endings on gsnamecl. This should remedy patch-portability problems.

[src/gsnamecl.h src/gsnamecl.c]

2008-04-21T14:53:38.640663Z Igor Melichev

Enhancement (graphics) : Delay applying big patterns until page clist interpretation.

DETAILS :

This is a preparation for fixing 
the bug 689440 "PostScript file generates infinitely large temp file".

The old code decomposes the imagemask into rectangles,
each of which decomposed the pattern color into a huge list of rectangles.
See more about the old code in Comment #11 of the bug 689440.
Now we delay the decomposition until the page clist playback.

This patch reduces the clist file size for the bug 689440
from 355GB to an acceptable size of 316Mb. A further shortening
is possible as explained in (5) below. But the rasterization time is still
unacceptably long - more than 48 hours. It will be improved
in a next step with converting imagemask with pattern color
into a painting of a pattern color with a mask clip device.

1. The old functions gx_dc_pattern_write, gx_dc_pattern_read actually 
are generic functions for multiple color types,
which simply return an error. Renamed them into 
gx_dc_cannot_write, gx_dc_cannot_read.

2. Implemented new gx_dc_pattern_write, gx_dc_pattern_read for clist-based patterns.
They copy pattern clist data to/from page clist. Currently this code
doesn't try to compress the data, but probably we'll need to do that.

3. Changed a condition in gxclimag.c to pass imagemask
with a clist-based pattern color to clist writer.
Also moved some checks to provide image matrix to be computed
when the new condition is true.

4. Added more functions into gxclist.c, gxclist.h for accessing 
data of a clist-based pattern.

5. gx_dc_pattern_read now constructs pattern cache and stores the
clist-based pattern "tile" to it. The clist reader releases the cache before exiting a band.
We will need an optimization agains redundant writing of patterns into page clist.
This necessary optimization to be done in a next step.

6. Propagated error codes in gxclread.c, gdevfax.c for easier debugging.

7. Improved debug printing in gxp1fill.c to designate
recursive calls to clist interpreter when a clist-based pattern
in interpreted while a page clist playback.

8. Added new accessors into gxpcmap.c, which are needed 
to access pattern cache while a page clist interpretation.

9. Updated dependencies in makefiles. 

10. Fixed the dependenco of gxdcolor.c on gxdevcli_h, which was missed before this change.

11. Added the pattern color type into the list in gxdcolor.c,
because now we need to write it into clist. An old comment
reads that it was not included against unuseful reference to 
pattern stuff in a Postscript Language Level 1 build.
The reference now appears, and this is unfortunate.
We think that level 1 builds are not important in nowadays.
On necessity it may be improved in a separate change.

[src/gsptype1.c src/lib.mak src/gsptype2.c src/gxclist.c src/gxpcmap.c src/gsptype1.h src/gxdcolor.c src/gxclist.h src/gxpcolor.h src/gdevfax.c src/gxdcolor.h src/gxp1fill.c src/gxclrast.c src/gxclread.c src/gxclimag.c]

2008-04-21T11:58:27.801424Z Russell Lang

Change the name of a utility used to build Windows distribution so it doesn't 
get treated as a setup program by Windows Vista.
Change reference to obsolete doc/Public.htm to doc/COPYING.
Allow makefile to recognise a later patch of the Microsoft Visual Studio 2005 
make utility.

[src/winint.mak src/msvc32.mak]

2008-04-20T23:40:49.333141Z Alex Cherepanov

Ignore DSC comments in nested EPS files and data blocks. Thanks to
William Bader for the patch. Bug 689791.

RIFFERENCES:
None

[src/zdscpars.c]

2008-04-20T04:51:21.386273Z Alex Cherepanov

Skip bogus endobj operators inside the object stream.
Bug 689795, customer 870.

RIFFERENCES:
None

[lib/pdf_base.ps]

2008-04-19T18:26:31.622080Z Ray Johnston

Fix a problem when the default transfer function of the target printer
is not in global space. Seen with Konica Minolta (QMS PostScript).
Fixes 'invalidaccess' error caused by attempting to store a 'local'
currentcolortransfer into a 'global' array. NB: The 'cp2g' will then
convert the array to global which is needed to store into InitialExtGState.

[lib/opdfread.ps]

2008-04-19T18:18:34.484562Z Ray Johnston

Add diagnostic information for start of rendering (Outputpage start) so that
parsing as well as rendering time can be observed with -Z: (gs_debug[':'])

[src/zdevice.c]

2008-04-19T12:48:15.825215Z Alex Cherepanov

Fix PDF transmuting utilities. Remove '#' from the list of characters that
may occur in PDF names unescaped. Bug 689770.

[lib/pdfwrite.ps]

2008-04-19T04:49:20.031557Z Alex Cherepanov

Add recognition of abbreviated filter names to the PDF inflation utility.

[toolbin/pdfinflt.ps]

2008-04-19T03:43:21.791168Z Alex Cherepanov

Implement loading of OpenType CFF font as a CIDFont resource in PDF reader.
Bug 689763, customers 531, 850.

DETAILS:
PDF can use OpenType font with ordinary CFF data as a CIDFont. Such a font is
referenced by /CIDFontType2 and may have /CIDToGIDMap table. The following
changes have been done to support this usage.

- A flag that forces CIDFont generation was added to CFF font loader.
- When the flag is on, CFF font is converted to a Type 9 CIDFont.
- The FontSet resource is returned by the value from the font loader
  because it can be of either Font or CIDFont type,
- Since CIDMap has no effect on CIDFont Type 9, CIDToGIDMap is interpreted
  by PDF reader to modify GlyphDirectory to the same effect.
- Unused CIDMap is no longer generated for CIDFontType2 objects that are not
  TrueType CIDFont resources.

[lib/pdf_font.ps lib/gs_cff.ps lib/pdf_ops.ps]

2008-04-17T17:40:05.253185Z Ralph Giles

Use -O0 with the autoconf debug build instead of -O which seems to
hide some symbols.

[src/Makefile.in]

2008-04-17T17:31:57.458743Z Ralph Giles

Allow the ENABLE_CUSTOM_COLOR_CALLBACK preprocessor macro to be set
from the compiler command line.

[src/gsnamecl.h]

2008-04-15T04:47:24.255743Z Alex Cherepanov

Repair broken CFF CIDFont stream generated by "Exstream Dialogue Version
6.2.004m (DBCS)". Bug 689753, customer 353.

DETAILS:
1. The CFF stream has a single Private DICT block but refers to it twice.
New version caches the DICT block that correspond to the Private stream.

2. The operands of ROS operator are too small and correspond to some random
values from the standard string table. The patch doesn't attempt to find
the right values nut converts the fetched names to strings to avoid a
typecheck error during resource handling.

[lib/gs_cff.ps]

2008-04-14T22:57:22.422088Z Michael Vrhel

Fixed Colorspace enumeration order for debug printing.

[src/gscspace.h]

2008-04-10T23:43:36.714953Z Ralph Giles

Increase the static command and path buffers in echogs to deal with
longer build paths. Bug 689788.

[src/echogs.c]

2008-04-10T22:08:20.215716Z Ralph Giles

Use the correct GEN directory references. Bug 689788.

[src/jbig2.mak src/jasper.mak]

2008-04-10T07:38:46.911876Z Ken Sharp

Fix (PDF interpreter): Improve omission of .notdef glyphs.

Details:
Bug #689757 "Extra square characters rendering PDF file".

Improvement to change 8217, makes the test for .notdef more
specific at Igor's suggestion.

Now matches exactly the string ".notdef" or strings beginning
".notdef~GS~" in order to include any .notdef modified by the
PDF interpreter when it appears multiple times in an Encoding.

[src/zchar42.c]

2008-04-10T05:43:43.466565Z Igor Melichev

Enhancement (graphics) : Generalize prototypes of color serialization methods for big color data.

DETAILS :

This is a preparation for fixing 
the bug 689440 "PostScript file generates infinitely large temp file".

The old serialization methods assume that color data can fit into a small buffer.
Now we want to drop this constraint to allow to write big patterns into clist.
See comment in code for details.

This change is algorithmically equivalent.
This patch adds a new argument to color serialization methods.
For a while the new actual parameter is always 0,
and the (untrivial) methods check for it.

[src/gsptype1.c src/gxwts.c src/gxcht.c src/gxdcolor.c src/gxdcolor.h src/gxclrast.c src/gxclpath.c src/gxht.c]

2008-04-09T15:28:45.087056Z Ken Sharp

Fix (PDF interpreter): Optionally omit rendering of /.notdef glyphs
from TrueType fonts.

Details:
Bug #689757 "Extra square characters rendering PDF file".

When rendering glyphs in a TrueType font, and the glyph is not present
in the font, GS (correctly) draws the /.notdef glyph (or glyph ID 0)
instead. Under some conditions, however, Acrobat does not do so, but
does leave a 'gap' apparently corresponding to the width of the
original glyph (if a /Widths array is present), or the width of the
/.notdef glyph.

Exactly what causes Acrobat to do this is unclear. In the thread for
bug 687929 it was suggested that Acrobat was substituting a standard
font with a /.notdef defined as an empty glyph. However changing the
font name had no effect.

Using a pdfwrite-produced PDF file, if I remove the symbolic flag
from the font, and any direct reference to /.notdef in the Encoding
/Differences array, then Acrobat does not display the /.notdef 
glyph. However, starting with a Distiller-produced PDF file, and
either altering the font to symbolic, or adding a direct /.notdef
to the Encoding, or both, makes no difference, Acrobat still does
not render the /.notdef glyph.

The behaviour of Acrobat is probably technically incorrect, but
we need to attempt to render files similarly, if at all possible.
However, since the appearance of a /.notdef is usually indicative
of an error, this has been made optional.

We can't substitute a space glyph for the /.notdef as has been
suggested, because we can't guarantee the existence of a space glyph
(eg Arabic, which has no space) and can't guarantee that the space
makes no marks even if present.

However, we still want to apply the Width of the glyph, so that
spacing works out correctly, if we simply skip the /.notdef glyph
then words may collide, as in the case of the file for this bug.
This means we must run the glyph through the text routines, as the
width is applied there.

A new user parameter '/RenderTTNotdef' controls whether glyphs
named /.notdef in a TrueType font should be rendered or not. This
is also controlled by a systemdict parameter /RENDERTTNOTDEF. The
PDF interpreter will set the user parameter to the same value as
the systemdict parameter, allowing this to be controlled from the
GS command line.

The user parameter defaults to 'true' which renders TrueType /.notdef
glyphs (so that these are properly rendered in PostScript), the 
RENDERTTNOTDEF systemdict parameter defaults to 'false', which is
used by the PDF interpreter to set the user parameter, and therefore
disables rendering of TT /.notdef glyphs in PDF files.

[lib/pdf_main.ps src/icontext.c src/zchar42.c doc/Use.htm src/icstate.h src/zusparam.c lib/gs_init.ps]

2008-04-09T06:16:50.593621Z Alex Cherepanov

Avoid a spurious warning "CS/cs (setcolorspace) operand not a name".
Acept array values for /CS attribute. Bug 689738.

[lib/pdf_draw.ps]

2008-04-08T21:55:08.170308Z Ralph Giles

We no longer have any outstanding port requests. Bug 689745.

[doc/Projects.htm]

2008-04-06T21:42:34.379385Z Alex Cherepanov

Use operator .execn to keep the operand stack size and .pdfcount value
consistent during /BuildChar execution. Operator scn depends on the correct
value of .pdfcount. Bug 688796.

[lib/pdf_font.ps]

2008-04-06T07:53:33.800999Z Alex Cherepanov

Fix PDF empty stack count (pdfemptycount) in the tiling pattern. Operator
scn depends on the correct value of pdfemptycount. This bug was introduced
in the rev. 8308. Bug 689776.

[lib/pdf_draw.ps]

2008-04-04T11:30:17.034942Z Till Kamppeter

Added the new files of OpenPrinting Vector 1.0.

[contrib/opvp/opvp_0_2_0.h contrib/opvp/opvp.h]

2008-04-04T11:28:22.909246Z Till Kamppeter

Updated the OpenPrinting Vector driver interface ("opvp", "oprp") to version 1.0.

[contrib/opvp/opvp_media.def contrib/opvp/opvp_common.h contrib/opvp/gdevopvp.c]

2008-04-04T08:53:57.893326Z Ken Sharp

Fix (pdfwrite): Incorrect cmap aubtables written for 'non-symbolic' TrueType
 fonts, when PDF/A output is enabled.

Details:
Bug #689754 "Substituting .notdef for "german umlauts" when generating PDFA".

Normally when writing TrueType fonts GS emits 'symbolic' TrueType fonts, and
correctly outputs both a 1,0 and 3,0 cmap subtable (with appropriate character
offsets, see section 5.5.5 of recent PDF specs).

However, when PDF/A output is enabled, and the TT font to be output only
contains glyphs from the Adobe Latin set, and these are ordered in
accordance with that set, then we emit a 'non-symbolic' TT font. (For PDF/A
we do not emit 'symbolic' fonts, if the font is not 'non-symbolic' then we
write a CIDFont instead.)

However, when writing the non-symbolic font, we continued to write the same
cmap subtables. Acrobat does not use the 3,0 subtable with non-symbolic fonts,
and falls back to the Mac Roman (1,0) subtable instead. For many glyphs this
works correctly, but if the font is WinAnsi compliant, and the glyph is one
of those for which the character position differs between Mac and Windows,
then the glyph cannot be found by Acrobat.

By writing a 3,1 (Windows Unicode) cmap subtable we can ensure this does not
happen, as Acrobat will use this in preference to the 1,0 subtable.

(gdevpsf.h) Add a new TrueType writing control flag WRITE_TRUETYPE_UNICODE_CMAP
 This is used to control whether we write a 3,0 or 3,1 cmap subtable.

(gdevpdtb.c) When setting options for TrueType font writing, if we are
 writing PDF/A, then set the new flag so we get a 3,1 Unicode subtable.

(gdevpsft.c) Create new boilerplate for a type 6 Mac Roman subtable,
 followed by a type 4 Windows Unicode subtable. Create a new routine
 'write_unicode_cmap_6' which uses the new boilerplate to write this
 kind of subtable. In write_cmap, check if we have been asked to write a
 Unicode cmap subtable, and use the new routine if so. Do not bias the
 character codes if writing a Unicode table.

[src/gdevpdtb.c src/gdevpsft.c src/gdevpsf.h]

2008-04-04T08:39:33.625568Z Ken Sharp

Fix (pdfwrite): code tidy up.

Details:
Bug #689712 "macro expanded unnecessarily and undocumented .h file".

No functional changes, merely code reordering and tidying up.

(encs2c.ps) Modified to write the current license boilerplate and a
 small additional comment referring developers to this file should they
 wish to modify the generated files. Modify the output to gdevpdtv.c
 to #include gdevpdtv.h.

(gscedata.h)
(gscedata.c)
(gdevpdtv.c)
(gdevpdtv.h) Update with output from modified encs2c.ps

(gdevpdtf.h) Remove the 'gs_private_st_basic..' macro, thus preventing
  its unnecessary expansion and inclusion in several .c files.

(gdevpdtb.c) Move the macro 'gs_private_st_basic(st_pdf_base_font...'
  into this module, where it is actually used.

[toolbin/encs2c.ps src/gdevpdtb.c src/gscedata.h src/gdevpdtv.c src/gdevpdtf.h src/gdevpdtv.h src/gscedata.c]

2008-04-04T01:02:17.399302Z Ralph Giles

Add the rinkj driver to the default autoconf build under "ETS" devices.

It's not intended for production use, but this will help prevent
bit rot. Related to bug 689780.

[src/configure.ac]

2008-04-04T01:02:16.708266Z Ralph Giles

Minimal changes to gdevrinkj.c so that it compiles. As far as I can tell,
the version in source control has never worked.

[src/gdevrinkj.c]

2008-04-04T01:02:16.013247Z Ralph Giles

Include stdlib.h for malloc and free in the rinkj device. Bug 689780.

[src/rinkj/rinkj-byte-stream.c]

2008-04-01T00:28:17.665464Z Alex Cherepanov

Fix incorrect scanline length calculation in 1 bit/component images on pswrite
and epswrite devices. The bug was introduced in rev. 8233.
Bug 689771, customer 73.

[src/gdevps.c]

2008-03-31T23:53:28.505732Z Ralph Giles

Don't override the memory pointer set by the client when initializing 
the luratech jpx decoder.

[src/sjpx_luratech.c]

2008-03-31T23:08:41.231868Z Ralph Giles

Do not invoke the s_jpxd_template set_defaults method if it is null.
Fixes bug 689743, whose attachment segfaults with the luratech decoder
for which this method is not implemented.

[src/zfjpx.c]

2008-03-31T23:00:55.454967Z Igor Melichev

Fix (graphics) : Stroke width was wrong for short segments.

DETAILS :

Bug 689742 "Nearly missing dotted lines with anisotropic resolution".

Rather the bug title mentions anisotropic rendering, 
the problem appears with isotropic one as well.
The bottom of the problem is that the function width_is_thin
used the dash longitude to know its direction,
which gives an incorrect (zero) result 
for vertical segments of zero length.

That method became obsolete since revision 7706,
which intorduced the precise dash direction is a special data field.
Using it now for the right computation of the width.

[src/gxstroke.c]

2008-03-28T16:30:25.778081Z Igor Melichev

Fix (graphics) : rectfill applied a wrong path adjustment.

DETAILS :

Bug 689361 "Text has white stripes and missing parts at 100 dpi".

Ghostsctript applies path adjustment as an implementation of
"any part of pixel inside" filling rule. 
However it was wrong for rectfill :
the lower adjustment was too wide, causing extra pixels to paint
when the lower coordinate of the rectangle falls to pixel center.
Besides that, the X adjustment was applied to Y axis.

[src/gsdps1.c]

2008-03-28T06:36:49.751300Z Alex Cherepanov

Improve detection of transparency usage. Search for transparency featires in
the resource chain of annotattion appearance streams.
Bug 689764, customer 531.

[lib/pdf_main.ps]

2008-03-27T08:37:58.577822Z Ken Sharp

Fix (pdfwrite): endstream/endobj not always emitted PDF/A compliant.

Details:
Bug #689755 "Keywords endstream and endobj not always preceded by EOL when generating".

The PDF/A specification mandates that the endstream and endobj operators
are always preceded by an EOL character (in the spec, EOL = carriage return,
linefeed, or carriage return/linefeed pair). 

(gdevpdfb.c)
(gdevpdfu.c)
(gdevpdti.c) Ensure all endstream operators are preceded by a '\n' if we
 are producing PDF/A.
(gdevpdfo.c) Add '\n' to the end of array and dictionary objects in
 cos_array_write and cos_dict_write, if we are producing PDF/A. This
 ensures that endobj is always preceded by a EOL as other object types
 already conform.

[src/gdevpdfo.c src/gdevpdfb.c src/gdevpdfu.c src/gdevpdti.c]

2008-03-26T14:02:02.746186Z Ken Sharp

Fix (vector device): Operation order could result in failure to
apply clipping.

Details:
Bug #689469 "Incorrect clipping operation in vector output".

From the patch supplied by Osamu Mihara. In gdev_vector_stroke_path and
gdev_vector_fill_path, clipping was performed after a number of other
operations. If these failed, the clipping was not applied, apparently
causing problems for some devices (eg OpenPrinting Vector Printer).

(gdevvec.c) Execute the clip operation before other operations to ensure
 that the clip is applied, even if the later operations fail.

[src/gdevvec.c]

2008-03-25T05:26:24.097873Z Alex Cherepanov

PDF font descriptor may be shared between CID and simple fonts. We cache the
font object in the font descriptor dictionary. To prevent collision, use
different keys to store font and CIDFont objects. Improve the fix for the
bug 689301.

[lib/pdf_font.ps]

2008-03-24T20:02:07.895385Z Igor Melichev

Fix (clist writer) : Smaller tiles for strip_copy_rop (continued).

DETAILS :

The old code sometimes tried to write a degenerate rectangles to clist.
It happened since revision 8581 due to inaccurate coding.
Should fix ghostpcl regression happened on March 23, 2008 .

[src/gxclimag.c src/gxclrect.c]

2008-03-24T04:17:47.859439Z Alex Cherepanov

Equivalent transformation of the PDF font handler to improve readability
in preparation for the PDF font overhaul.

[lib/pdf_font.ps]

2008-03-23T07:50:43.652322Z Igor Melichev

Fix (vector device): %pipe% IO device being opened as seekable (continued).

DETAILS :

Revision 8602 caused an MSVC warning, which is now fixed.

[src/gdevvec.c]

2008-03-22T21:55:00.988313Z Igor Melichev

Fix (clist writer) : Smaller tiles for strip_copy_rop.

DETAILS :

Bug 689588 "Unexpected InternalOverflow in ReadImage".

When strip_copy_rop recieves a big tile, it is being subdivided into line tiles
to fit into the clist buffer. However the line tile can be too big as well.
The new code narrows the line tile with the size of the rectangle to be painted.
For details see comments added into gxclrect.c .

Minor change (gdevddrw.c, gdevmr8n.c) Added visual trace commands for easier debugging.

[src/lib.mak src/gdevddrw.c src/gdevmr8n.c src/gxclrect.c]

2008-03-21T05:07:53.304009Z Igor Melichev

Fix (Windows application) : Provide a better visual trace support interface for use with other interpreters.

DETAILS :

This minor change doesn't change any behavior.

[src/dwtrace.h src/dwtrace.c]

2008-03-20T10:20:17.499008Z Ken Sharp

Fix (pdfwrite): pdfwrite embedded TrueType/Type 42 fonts which
specifically forbid embedding.

Details:
Bug #689693 "GS embeds licensed fonts when generating PDF".

For Type 42 fonts, in order to prevent embedding fonts with license
restrictions we need to retrieve and honour the /FSType key if present
in the FontInfo dictionary of the font.

We also need to check the embedding status of TrueType fonts read from disk
in a similar fashion to Type 42 fonts downloaded in the course of the job.

Finally, when writing a TrueType font to a PDF file, we need to preserve any
existing embedding rights by setting fstype appropriately in the OS/2 table.
It is possible to permit font embedding even when the embedding rights
are non zero and we should preserve these.

(gxfont.h) Add a new parameter, EmbeddingRights, and a new flag
	     FONT_INFO_EMBEDDING_RIGHTS, to the gs_font_info structure.

(zfont.c) In zfont_info, if we request the EmbeddingRights, and the font has
          a FontInfo dictionary, retrieve the FSType if present.

(gdevdtf.c) When determining whether a font may be embedded, retrieve the
          font info, check the 'members' structure member after retrieving font info
          to see if the EmbeddingRights member has been updated. Assume embedding
          allowed if the member has not been updated.

(gxfont42.h) Add a new member os2_offset to the gs_type42_data structure, to allow
           us to read from the OS/2 table later.

(gstype42.c) In gs_type42_font_init, when reading the TrueType Table directory, store
           the offset to the OS/2 table.

           In gs_truetype_font_info, if the caller has requested the embedding rights
           and they haven't already been retrieved from an FSType entry in the
           FontInfo dictionary, get the OS/2 table and pull the fstype value from there.

(gdevpsft.c) When writing a TrueType font, and we don't have an OS/2 table to
             copy (appears to always be the case), check to see if we have any
             embedding rights information in the original font, and preserve it if so
             by setting the fstype entry in the OS/2 table.

[src/gxfont42.h src/zfont.c src/gdevpdtt.c src/gstype42.c src/gdevpsft.c src/gdevpdtf.c src/gxfont.h]

2008-03-19T10:09:21.671968Z Ken Sharp

Fix (vector device): %pipe% IO device being opened as seekable.

Details:
Bug #689428 "‘gs -sOutputFile=%pipe%cat’ doesn't work".

Based on the patch supplied by Dan Villiom Podlaski Christiansen. 

(gsdevice.c) in gx_device_open_output_file, if the parsed out iodevice
 is '%pipe%', then open the output 'file' non-seekable.

(gdevvec.c) Not strictly related, but gdev_vector_open_file_options could
 use 'fclose' on a stream opened with gx_device_open_output_file. Altered
 to use gx_device_close_output_file instead.

[src/gdevvec.c src/gsdevice.c]

2008-03-16T22:25:13.694561Z Alex Cherepanov

Handle TT fonts that have short post table with less than 256 glyphs.
Pad the generated Encoding vector with /.notdef glyphs.
Bug 689515, customer 700.

[lib/gs_ttf.ps]

2008-03-15T23:59:48.788786Z Alex Cherepanov

Work around a bug in the PS interpeter by not using nulldevice in the PDF
interpreter where it isn't really needed. Bug 689751.

DETAILS:
PS interpreter seems to fall into an infinite loop running charpath when
the font is composite and the curent device is nulldevice.

[lib/pdf_ops.ps]

2008-03-14T05:40:11.023910Z Marcos H. Woehrmann

Fixed duplexing for ljet3d and ljet4d devices; thanks to karsten@sengebusch.de for the changes.

Fixes bug 687531.

No regressions expected, since neither device is tested by the regression suite.

[src/gdevdjet.c src/gdevdljm.c]

2008-03-13T07:18:46.618081Z Igor Melichev

Fix (graphics) : A bug in the pattern color serialization.

DETAILS :

Patch from Alex mentioned in the bug 689731 and unrelated to that bug.

[src/gsptype1.c]

2008-03-12T22:32:03.336468Z Igor Melichev

Fix (graphics) : Optimize filling a path with a shading color (continuewd 3).

DETAILS :

Bug 689748 "gs segfaults".

An unitialized variable since rev 8510.
We had no test files for that branch, now got one.

[src/gxfill.c]

2008-03-11T18:32:33.104151Z Ray Johnston

Fix MSVC makefile for the 'Big console mode EXE' case when COMPILE_INITS=1. Also
minor cleanup to gs.mak 'clean' target and redundant dependency in ugcclib.mak.
MSVC build problem noted by customer #531.

[src/ugcclib.mak src/gs.mak src/msvc32.mak]

2008-03-10T02:18:38.654568Z Alex Cherepanov

When the font has no /FontBBox but provides character width through /Metrics
dictionary, use them instead of the calculated width. The old code did so only
when both the width and side bearings were defined. Bug 689740, customer 353.

[src/zchar1.c]

2008-03-09T13:34:51.534239Z Igor Melichev

Fix (transparency) : Transparency compositor device recreation was incorrect.

DETAILS :

This problem was apparently detected when working on another problem.
The pdf14_recreate_clist_device code was wrong.
Regularly we never call that function, because
PDF interpreter creates the transparency compositor device once per page.
Nevertheless we store the right code since it is debugged.

[src/gdevp14.c]

2008-03-07T13:39:35.783627Z Igor Melichev

Fix (bbox device) : box_fill_path needs as path for shfill.

DETAILS :

Since revision 8017 the function gs_shfill includes a branch for 
a faster handling of the Postscript operator shfill,
which does not provide a path to fill. It uses the clipping path instead.
The bbox device appears to be incompatible with that optimization.
This patch adds a special branch to bbox device to handle a shading fill
with no path.

Please note that since revision 8017 the call 
dev_proc(dev, pattern_manage)(dev, gs_no_id, NULL, pattern_manage__shfill_doesnt_need_path) 
must return a proper information about the device's fill_path method. 
In most case it is doe with the default implementation gx_default_pattern_manage, 
but the bbox device ises gx_forward_pattern_manage instead, 
which appears wrong for bbox_fill_path. We decided to add an optomized branch 
rather than apply the slow general method.

[src/gdevbbox.c]

2008-03-07T09:42:38.021120Z Ralph Giles

Correct a default return value. Follow on to Bug 689569.

Also rename a variable to match the jbig2dec version of the same call.

[src/sjbig2_luratech.c]

2008-03-05T23:35:50.165171Z Igor Melichev

Fix (clist) : Some transparency compositor commands don't need CTM.

DETAILS :

The old code writes CTM with each transparency compositor command.
Actually it is only needed with begin_transparency_grup and 
begin_transparency_mask. So we can skip CTM with
when writing other commands to shorten the clist file.

Note clist reader now sets zero CTM when reading transparency
compositor command with no CTM. We believe it is useful because
subsequent graphics objects need to restore CTM of a containing group.

See also comments added in code.

[src/gdevdbit.c src/gdevp14.c]

2008-03-04T20:56:48.308882Z Igor Melichev

Fix (clist) : Crop transparency commands while clist writing, step 4.

DETAILS :

This provides a right group bounding box for transparency masks.
Instead that the old code used the container's group bbox,
which may be much bigger causing a performance leak.

[src/gdevp14.c]

2008-03-03T20:16:06.744980Z Igor Melichev

Fix (images) : Revert an unintentional change to siscale.c .

DETAILS :

When doing the revisoon 8530, a macro was expanded in siscale.c 
for a debug purpose. This change was committed by error,
reverting it now.

[src/siscale.c]

2008-03-03T16:01:12.306842Z Igor Melichev

Fix (clist) : Crop transparencsy commands while clist writing, step 3.

DETAILS :

This really crops transparency compositor commands with bands 
that are covered by the transparency bbox.

Actually the statement above has one exception. When a transparency bbox
covers more that 2/3 of all bands, we still write the commands to 
the "all bands" list for a shorter clist file. We noticed that 
the clist playback time strongly depends on the file size.

1. The new method gs_composite_type_procs_t::get_cropping
replies what bands are covered by the compositor. 
When it gives a non-trivial result, clist_create_compositor
writes the compositor command to those bands,
which are covered with the cropping (Exception :
if too many bands are covered, it writes the command to
the "for all bands" list).

2. Since some bands skip some compositor commands,
while clist reading the association of masks to groups 
becomes more complex. Before this patch each group
was associates with the mask, which was created immediately
before it at same transparency stack level. 
After this patch some groups may be skipped, so that
clist reader may recieve extra masks, because masks are
still use the container's group bbox. For skipping such extra masks
we provide a numeric identifier of a mask, which is named mask_id.
Here is how it works :

2.1. All masks recieve serial numbers (mask_id) while clist writing.
2.2. Each mask command is written with its mask_id.
2.3. Each group command is writen with mask_id, 
     which belongs to the mask that is assocuated with the group.
2.4. While clist playback pdf14_pop_transparency_group checks whether
     the mask amd the group have same mask_id. If not, the mask is extra
     and it must be droped.
2.5. Note the old assiciation logic is still working,
     and it may skip some masks as well.
2.6. If the rasterization happens with no clist, mask_id is always zero.
     In this case the old logics is only working.
     Maybe we'll provide non-zero values someday.
2.7. See comments in code for more details.

3. The method gs_composite_type_procs_t::clist_compositor_write_update
is now some generalized. Before this patch it only updates the clist writer state
with the compositor features. With this patch it also adds 
some information from the clist writer state to the compositor parameters.
Particularly it provides mask_id to the compositor command.
Thus now it updates *both* clist writer and the compositor parameters
to comply each another. For a while, in order to simplify the patch,
the compositor argument is still 'const'. Will need to fix someday.

4. Now we need to save mask_id in a stack that reflects the
transparency nesting. The cropping stack, which was introduced
in the last patch, now works for that. To provide that
we add mask_id to clist_writer_cropping_buffer_s,
and use clist_writer_push_no_cropping to save amsk_id
over inner groups. 

5. state_update(ctm) in c_pdf14trans_clist_write_update is replaced
with code, which updates CTM from the transparency compositor command.
The old code is not fully correct, because it takes CTM from the imager state,
rather we havn't got prcatical cases when it gives a wrong result.

6. drop_compositor_queue now calls adjust_ctm for compositors being dropped.
The old code is incorrect because it can miss a CTM update when 
a compositor sets some CTM and later a non-compositor object
sets same CTM. In this case the clist writer skips the second CTM on writing,
and skipping the first in the clist reader will miss the CTM completely.
We haven't got practical cases for that.

7. Improved some debug printing.

[src/gxclist.c src/gdevdflt.c src/gdevp14.h src/gstrans.c src/gsalphac.c src/gxclist.h src/gxcomp.h src/gsovrc.c src/gstparam.h src/gstrans.h src/gxclrast.c src/gdevp14.c src/gxclpath.c src/gxclimag.c]

2008-03-03T11:57:42.307384Z Igor Melichev

Fix (clist) : Crop transparencsy commands while clist writing, step 2.

DETAILS :

This is a preparation to the next step.

The patch introduces a transparency stack for clist writer,
which saves cropping when entering a transparency group,
and restores when exiting it. The cropping is being narrowed
with transparency group's bounding box.

[src/gxclist.c src/gxcldev.h src/gxclist.h src/gdevp14.c src/gxclpath.c]

2008-03-03T11:42:33.253339Z Igor Melichev

Fix (clist) : Crop transparencsy commands while clist writing, step 1b.

DETAILS :

Removing non-ascii chars that was not detected by MSVC.

[src/gdevp14.c]

2008-03-03T10:13:01.196997Z Igor Melichev

Fix (clist) : Crop transparencsy commands while clist writing, step 1a.

DETAILS :

The last commitment is incomplete, now fixing.

[src/gxclist.h]

2008-03-03T10:11:27.428498Z Igor Melichev

Fix (clist) : Crop transparencsy commands while clist writing, step 1.

DETAILS :

This is a preparation to the next step.
In general, the behavior doesn't change, 
but implementation details differ.

The old code maitains a flag cropping_by_y in the clist writer,
which triggers a cropping of objects by the Y axis.
The old code isn't perfect, because 
it first crops by [cdev->cropping_min, cdev->cropping_max],
and then by [0, cdev->height].

In the new code we unite both croppings into a single one.
For doing that we remove the flag, and provide 
the right interval [cdev->cropping_min, cdev->cropping_max]
in any case. Initially it is [0, cdev->height},
and it is narrowed when a shading bbox is set.
To restore the initial cropping after the shading
is complete, we maintain 2 new fields 
save_croping_min and save_cropping_max.

So now the cropping mechanizm does not depend
on shading, and clients may set a croping when they need. 
We'll use this feature in the next patch.

[src/gxclist.c src/gdevp14.c src/gxclpath.c src/gxclimag.c src/gxclrect.c]

2008-03-03T04:03:51.374416Z Marcos H. Woehrmann


Fix for compression always falling back to no compression in
pclxl_write_image_data(), bug 689732.

Details:

After much tracing of srle.c and gdevpx.c I believe this bug is in
the portion of s_RLE_process() that looks ahead in order to be able
to optimally compress the data.  Rather than attempting to modify the
function and probably breaking something else I'm taking the 99% solution
and just calling s_RLE_process with last set to true instead of false.
This disables the look ahead feature, presumably making the compression
very slightly suboptimal but at least now it works.

This change results in pxl files that are significantly smaller than
before (i.e. the test file associated with bug 689595 is reduced in size
from 1.1 megs to 387k).

[src/gdevpx.c]

2008-03-03T02:57:05.472235Z Ray Johnston

Fix properties

[src/psromfs.mak src/gsromfs0.c]

2008-03-03T01:17:09.063617Z Marcos H. Woehrmann

Fall back to using gx_default_copy_mono() in pclxl_copy_mono() if data_x!=0.

Details:

Fixes bug 688992.  Will increase the size of the generated PXL file in some cases; a better solution would be to modify the pclxl_write_image_data()function to handle data_x!=0.

Expected regressions:

None, pxlmono isn't covered in the regression suite.

[src/gdevpx.c]

2008-03-01T10:18:20.389016Z Ken Sharp

Fix (pdfwrite): problems with type 3 fonts executing 'show'.

Details:
Bug #689685 "OpenType font incorrectly converted to PDF".

The File is from Quark XPress and contains a type 3 font which
executes a 'show' and a 'charpath stroke' with a glyph from a type
1 font. Further, it executes a 'charpath' on this type 3 glyph.

Pdfwrite was unaware, when processing the 'show' that this was
inside a charpath operation, and emitted the shown glyph.

Modified pdfwrtite to be aware that a charpath is in operation, and
to have the graphics library handle any show operations.

(gdevpdfx.h) Add a new flag 'type3charpath' to the gx_device_pdf
  structure.

(gdevpdfb.h) Add an initialiser for the type3charpath flag (also for
  the last_charpath_op which was missed in that change)

(gdevpdtt.c) In gdev_pdf_text_begin, if type3charpath is true, go
straight to the default text processing. Otherwise, check to see
if this is a type 3 font, and the operation is 'charpath'. If so
then create a pdfwrite text enumerator to process the text.

In pdf_text_process, if we have a type 3 font, the operation is charpath
and type3charpath is false, set it to true and go straight to the 
default text handler. When the enumerator is completed, if type3charpath
is true, set it to false.

In pdf_text_process, while handling text, do not start accumulating a
charparoc if type3charpath is set.

Finally, in pdf_text_set_cache, if type3charpath is set, simply execute
the standard cache routine.

[src/gdevpdfx.h src/gdevpdtt.c src/gdevpdfb.h src/gdevpdti.c]

2008-03-01T10:15:02.847745Z Ken Sharp

Fix (pdfwrite): problems with type 3 fonts executing 'show'.

Details:
Bug #689687 "Regression: pdfwrite DEVICE produces bad text".

The File is from Quark XPress and contains a type 3 font which
executes a 'show' and a 'charpath stroke' with a glyph from a type
1 font.

The code for revision 8265 converts these into a '2 Tr' in the
PDF file. However, I missed the case of this occuring inside a font,
resulting in much too large a strokewidth being set. This code takes
account of the font matrix.

NB there is still a potential problem. There is no way currently to tell
the difference between a charproc which explicitly sets a stroke width
and one which inherits it from the prevailing graphics state. Currently
we will write a font which always emits the stroke width at the time
the font was first used. There is no simple way to address this, we
could set the stroke width to an invalid value during the course of a type
3 glyph, and check it before emitting the stroke, but this is dangerous.

However, this seems unlikely to be a real problem in practice, since altering
the stroke width outside the font might result in unpredictable widths
dependent on the point size. I have chosen not to open a bug for the
possible condition at this time.

(gdevpdfd.c) gdev_pdf_stroke_path, if we are converting to a PDF text
rendering mode, and are inside a type 3 font glyph description, take the
font matrix into account when calculating the strokewidth.

[src/gdevpdfd.c]

2008-03-01T01:42:04.749356Z Ralph Giles

Bump the revision after the 8.62 release.

[doc/News.htm lib/gs_init.ps src/gscdef.c src/version.mak]

Version 8.62 (2008-02-29)

This version is the next in our line of scheduled semi-annual releases.

There were approximately 55 bugs fixed since version 8.61. Some fixes and improvements of note were:

COMPILE_INITS=1 was broken in 8.61 and now works as expected.

Fonts are now distributed in the Resource/Font directory and will be included in the executable if COMPILE_INITS=1

The tiffsep device was fixed for using more than 8 colorants.

Shadings, overprinting and transparency were optimized and are substantially faster than in 8.61, particularly for large format or high resolution rendering when using the 'clist' banding mode.

Changes were made to prevent near unbounded growth in memory usage and corresponding performance problems on a few test cases.

The 'pdfwrite' device was improved to fix some compatibility issues with PDF/A and to improve some font embedding and other issues.

The 'ht_ccsto.ps' Stochastic Threshold array was completely changed to be more useful. The values in the threshold array were inverted, so the number of 'light' colors was limited and using it generally caused prints that were too dark.

The 'runpdfbegin', 'dopdfpages' and 'runpdfend' PostScript pseudo-operators that were inadvertently removed in 8.61 were restored. This also restored the functionality of toolbin/pdf_info.ps to display PDF creator stats, fonts used and page sizes.

The halftone tile cache sizes and cache effectiveness were improved to help the performance when tiling with large cells or threshold arrays.

The following bugs were open at the time of release:

465936, 578865, 626295, 686747, 686853, 687011, 687146, 687257, 687271, 687280, 687295, 687327, 687514, 687520, 687531, 687608, 687650, 687674, 687677, 687695, 687697, 687702, 687721, 687728, 687729, 687796, 687805, 687814, 687850, 687903, 687904, 687957, 687974, 688007, 688022, 688026, 688032, 688036, 688042, 688058, 688061, 688064, 688066, 688075, 688081, 688095, 688129, 688130, 688151, 688152, 688159, 688166, 688184, 688187, 688207, 688215, 688227, 688239, 688269, 688280, 688288, 688317, 688318, 688320, 688333, 688342, 688358, 688359, 688360, 688361, 688363, 688372, 688378, 688386, 688387, 688389, 688395, 688413, 688427, 688428, 688436, 688437, 688440, 688446, 688475, 688483, 688500, 688515, 688517, 688528, 688533, 688539, 688540, 688542, 688543, 688557, 688580, 688581, 688588, 688601, 688604, 688605, 688610, 688615, 688616, 688619, 688627, 688636, 688638, 688646, 688651, 688653, 688655, 688673, 688674, 688696, 688699, 688709, 688710, 688714, 688717, 688728, 688736, 688739, 688757, 688770, 688774, 688778, 688796, 688797, 688807, 688811, 688813, 688815, 688829, 688843, 688846, 688876, 688908, 688918, 688919, 688926, 688928, 688933, 688942, 688943, 688952, 688958, 688969, 688976, 688986, 688990, 688992, 688999, 689003, 689011, 689013, 689014, 689022, 689025, 689028, 689031, 689040, 689044, 689046, 689048, 689057, 689058, 689080, 689081, 689090, 689093, 689094, 689098, 689111, 689116, 689128, 689129, 689130, 689133, 689136, 689137, 689138, 689145, 689146, 689148, 689150, 689153, 689154, 689159, 689161, 689164, 689172, 689174, 689181, 689184, 689195, 689198, 689206, 689209, 689210, 689222, 689224, 689230, 689236, 689246, 689247, 689248, 689252, 689253, 689264, 689279, 689280, 689281, 689283, 689289, 689290, 689291, 689304, 689305, 689308, 689313, 689331, 689335, 689340, 689341, 689343, 689358, 689361, 689363, 689364, 689367, 689370, 689373, 689376, 689378, 689396, 689402, 689412, 689418, 689419, 689422, 689428, 689431, 689438, 689439, 689440, 689444, 689445, 689448, 689450, 689451, 689456, 689460, 689462, 689463, 689469, 689471, 689476, 689484, 689487, 689488, 689489, 689490, 689498, 689499, 689500, 689502, 689507, 689509, 689510, 689512, 689514, 689515, 689516, 689518, 689521, 689522, 689532, 689534, 689535, 689538, 689542, 689543, 689546, 689547, 689549, 689552, 689554, 689557, 689559, 689560, 689561, 689563, 689566, 689567, 689573, 689574, 689579, 689581, 689583, 689585, 689588, 689591, 689592, 689595, 689598, 689601, 689606, 689607, 689609, 689610, 689618, 689621, 689623, 689627, 689628, 689632, 689636, 689637, 689641, 689649, 689652, 689653, 689654, 689657, 689658, 689659, 689663, 689666, 689668, 689669, 689673, 689674, 689675, 689676, 689677, 689681, 689682, 689684, 689685, 689687, 689689, 689690, 689691, 689692, 689693, 689697, 689698, 689699, 689702, 689704, 689705, 689709, 689710, 689711, 689712, 689713, 689715, 689716, 689721, 689722, 689723, 689725, 689727.

Incompatible changes

Not strictly a compatibility issue, but the default URW (GPL) fonts are now distributed in the Resource/Font/ path which can increase the number of file handles open for PostScript that opens all of the resources. Also the size of the %rom% rom file system within the executable when using COMPILE_INITS=1 is larger by the amount needed for the fonts.

Also not strictly incompatible, but some alternate fixed-point code was stripped out, so FPU_TYPE and other FPU related makefile macros are gone or don't cause any difference in the code generated. Also the 'USE_ASM' macro was removed, since we expect modern compilers to do sufficient optimization.

Some old (deprecated) "helper" scripts were removed: gsindent, gssubst, many2pdf.tcl, and pre.

The unused 'cmap' (special color mapping) and 'ropc' devices were removed from the distribution.

The 'ht_ccsto.ps' Stochastic Threshold array was completely changed to be more useful. The values in the threshold array were inverted, so the number of 'light' colors was limited and using it generally caused prints that were too dark. This is an improvement, but incompatible in that anyone using it previously would see much different grays/ colors.

The SYSTEM_CONSTANTS_ARE_WRITABLE compile time define was removed as was the "EXTEND_NAMES" makefile macro (still accessible using a compiler flag define).

Changelog

2008-02-29T23:59:31.476236Z Ray Johnston

Fix typo that caused unbalanced 'q' 'Q' operators in PDF's (caused by
rev 8501). Bug 689728.

[src/gdevpdfi.c]

2008-02-29T22:27:59.143965Z Ralph Giles

Release notes for the 8.62 release. Thanks to Ray Johnston for compiling these.

[doc/News.htm]

2008-02-29T20:49:04.253927Z Ralph Giles

Remove some C++ style comments.

[src/siscale.c src/gdevijs.c]

2008-02-29T20:49:02.503198Z Ralph Giles

Add some new files to the documentation tree.

[doc/Develop.htm]

2008-02-29T20:47:52.884152Z Ralph Giles

Update product name, copyright and release dates.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Deprecated.htm doc/Source.htm man/ps2epsi.1 doc/Install.htm src/gscdef.c doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm src/version.mak man/gs.1 src/dwsetup.rc man/pf2afm.1 doc/Fonts.htm doc/Ps2ps2.htm man/printafm.1 doc/Develop.htm doc/Ps2pdf.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 src/winint.mak doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Make.htm doc/Details8.htm doc/Testing.htm doc/Unix-lpr.htm doc/Ps-style.htm doc/C-style.htm doc/History1.htm doc/History2.htm man/gslp.1 doc/History3.htm man/wftopfa.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 man/ps2ps.1 doc/History5.htm doc/History6.htm]

2008-02-29T18:53:14.162723Z Ray Johnston

Add default FontResourceDir needed when COMPILE_INITS=1 is used so
that the fonts from Resource/Font in the distribution directory that
are built into %rom%Resource/Font/ will be found.

[src/iccinit1.c]

2008-02-29T08:13:08.227205Z Ray Johnston

Fix COMPILE_INITS=1. Note the next commit to the PCL tree will combine
with this one, but we can't commit to both trees atomically.

DETAILS:

Tested with Windows and linux. Needs OS/2 testing. Other build systems
may have bit rotted, and I don't hav them to test. Some of the changes
here are to allow working with a PCL or XPS only build where the PS
interpreter is not used/needed.

I noticed that the default systemparam value for FontResourceDir isn't
getting et to %rom%Resource/Font/ as it should, but GenericResourceDir
_is_ being initialized correctly to %rom%Resource/ which is _NOT_
fixed by this commit.

[src/openvms.mak src/psromfs.mak src/macosx.mak src/int.mak src/watcw32.mak src/dvx-gcc.mak src/unixansi.mak src/msvclib.mak src/unixlink.mak src/os2.mak src/lib.mak src/bcwin32.mak src/ugcclib.mak src/gsromfs0.c src/Makefile.in src/msvc32.mak src/unix-gcc.mak src/unix-aux.mak src/macos-mcp.mak src/watclib.mak]

2008-02-28T14:56:32.629339Z Alex Cherepanov

Attempt to repair invalid embedded TT fonts without cmap table.
Bug 689707, customer 531.

DETAILS:
1. Use identity cmap if it is missing from the TT file. Set an unknown
   language ID to activate post table processing.

2. To avoid false rejection during the validation of post table run the
   validator only on the TT files generated by an utility that is known
   to write broken post tables.

[lib/gs_ttf.ps]

2008-02-27T19:36:18.181168Z Igor Melichev

Fix (clist interpreter) : Improve transparency performance, step 4a.

DETAILS :

Bug 689708 "Long processing time of PDF file"
Bug 689714 "Severe performance penalty for PDF transparency through to clist"

The last patch is incomplete due to a commitment failure.
The patch completely removes .inittransparencymask because it is noop.

With the test case of the bug 689708 at 144 dpi 
with default band size it reduces
the temp file size from 64.8Meg to 36.5 Meg,
and speeds up the rendering in 11 times.

With the test case of the bug 689714 at 144 dpi
with default band size it reduces
the temp file size from 12.0Meg to 3.3 Meg,
and speeds up the rendering in 11 times.

The speed factor depends on resolution.

[lib/pdf_draw.ps lib/pdf_ops.ps]

2008-02-27T19:22:57.279403Z Igor Melichev

Fix (clist interpreter) : Improve transparency performance, step 4.

DETAILS :

Bug 689708 "Long processing time of PDF file"
Bug 689714 "Severe performance penalty for PDF transparency through to clist"

The patch completely removes .inittransparencymask because it is noop.

With the test case of the bug 689708 at 144 dpi 
with default band size it reduces
the temp file size from 64.8Meg to 36.5 Meg,
and speeds up the rendering in 11 times.

With the test case of the bug 689714 at 144 dpi
with default band size it reduces
the temp file size from 12.0Meg to 3.3 Meg,
and speeds up the rendering in 11 times.

The speed factor depends on resolution.

[src/gstrans.c src/ztrans.c src/gdevpdft.c src/gstrans.h src/gdevp14.c]

2008-02-27T18:39:31.036262Z Igor Melichev

Fix (clist interpreter) : Improve transparency performance, step 3.

DETAILS :

This is a preparation for fixing bug 689708 "Long processing time of PDF file"
The last patch appears incomplete, now fixing.

[src/gxistate.h]

2008-02-27T00:47:37.036819Z Marcos H. Woehrmann

Added setting of fill_rule in pclxl_endpath().

DETAILS:

The pclxl_endpath() function checked if a clip_rule needed to be set but not a fill_rule.

This is a fix for bug 689665.

[src/gdevpx.c]

2008-02-27T00:08:22.308407Z Igor Melichev

Fix (clist interpreter) : Improve transparency performance, step 2.

DETAILS :

This is a preparation for fixing bug 689708 "Long processing time of PDF file"
The last patch appears incomplete due to a missed dependence in makefile.
Now we see the mask pointer was used but it was always NULL.

[src/lib.mak src/gxistate.h src/gsistate.c src/gdevpdfg.c]

2008-02-26T23:14:40.608304Z Igor Melichev

Fix (clist interpreter) : Improve transparency performance, step 1.

DETAILS :

This is a preparation for fixing bug 689708 "Long processing time of PDF file"
It completely removes the mask pointer field from gs_transparency_source_s.
No idea what it was defined for. Nobody uses it.

[src/gstrans.c src/gstrans.h]

2008-02-26T07:12:49.848447Z Alex Cherepanov

Change the decimal separator in generated strings to '.' effectively selecting
a C numeric locale without calling any locale functions. Bug 689624.

DETAILS:
For most clients Ghostscript is a library. We cannot set C locale before
sprintf() and reset it afterwards because this may affect other threads.

[src/spprint.c src/zdouble.c]

2008-02-25T16:10:43.614503Z Alex Cherepanov

Remove a space betveen -f and a file name to prevent parsing of the file name
that starts with '-' as an options. Bug 689682.

[lib/ps2pdfxx.bat]

2008-02-25T05:48:45.219666Z Alex Cherepanov

Add a check for null value. Since rev. 6956 following Adobe implementation
Ghostscript doesn't accept null as a key in dictionary look-up. Bug 689696.

[lib/pdf2dsc.ps]

2008-02-25T04:20:47.177440Z Alex Cherepanov

When the values of the color key mask exceed the valid range clip them to the
nearest valid values and continue. Don't discard the mask as we did before.
Bug 689717, customer 580.

[lib/pdf_draw.ps]

2008-02-24T09:21:54.361457Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image (continued 8).

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"
Ghostscript Bug 689686 "siscale.c contrast degradation"

Accurately compute pixel center coordinates when applying the interpolation filter.
See comment in code. When scale=1, the offsets mutually eliminate.
Also the old code missed a bit when computing center_denom/2 in integers.

[src/siscale.c]

2008-02-24T03:37:03.979896Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image (continued 7).

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"
Ghostscript Bug 689720 "Hang with -dDOINTERPOLATE caused by rev 8530 changes"

An expression for HeightOut missed 'abs' with recent patch.
Thanks to Ray for pointing it out.

[src/gxiscale.c]

2008-02-24T02:58:34.824461Z Alex Cherepanov

Fix link errors in the file descriptor-based implementation of file streams.
Move function used by both fd and stdio implementations to a separate file
and compile it in both versions. Bug 688918.

DETAILS:
Although the patch fixes link errors, pdfwrite and other devices,
use stdio functions directly and generate incorrect documents in fd version.

[src/lib.mak src/sfxstdio.c src/sfxcommon.c]

2008-02-24T01:12:18.214936Z Alex Cherepanov

Add definitions of some C99 types missing from old versions of Cygwin.

[src/stdint_.h]

2008-02-23T22:26:01.799844Z Ray Johnston

Fix typo that caused Cygwin build to fail if 'fontconfig' package was present.

[src/configure.ac]

2008-02-22T20:18:08.422807Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image (continued 6).

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"
Ghostscript Bug 689718 "Regression: differences in FIG3.eps".

1. siscale.c : The revision 8529 patch part 4 tried to represent 'ceil' with rational 
arithmetics. But when downsampling the argument still uses a floating
number WidthIn, so we still need 'ceil'. 
This patch converts the formula back to floats, 
assuming that double precision is enough for precise result 
because source image size usually is smaller than 2^24.

The wrong rational representation of 'ceil' caused an array element index 
to fall outside the array. Debugged with FIG3.eps.

2. Improved debug printing and visual trace.

[src/gsimage.c src/lib.mak src/gxiscale.c src/siscale.c src/gdevm24.c]

2008-02-22T10:29:49.290734Z Igor Melichev

Fix (FAPI) : Embedded fonts didn't work (continued).

DETAILS :

A condition for querying a glyph in GlyphDirectory was wrong.
Debugged with buttons.pdf from Karen.

[src/zfapi.c]

2008-02-22T10:09:30.542153Z Igor Melichev

Fix (FAPI) : Embedded fonts didn't work.

DETAILS :

Embedded Type 42 FAPI support was broken since
Revision 7107 Sun Oct 15 17:19:45 2006 UTC (16 months, 1 week ago)
due to premature binding.

[lib/gs_typ42.ps]

2008-02-20T21:02:48.212097Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image (continued 5).

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"

This is a further improvement to image placement precision.
Debugged with a.pdf .

The old code provides insufficientg precision when computing 
transformation matrix for an image. This computation
include matrix inversion and matrix miltiplication.
The old code uses floats and causes a visible shift of subimages with banding.
The new code uses double precision.

We didn't test how it relates to the revision 7026 change, 
which dectreased the matrix precision for CPSI compatibility.
It should be a separate job.

In the new gsmatrix.c code we simply duplicate old code fragments
and replace types for double. We don't want to define a template
for now. Will see after the code passes enough practical work.

Besides that, in gxidata.c replaced fixed2int_pixround
with fixed2int_pixround_perfect. It is not related to a.pdf,
but we believe it is an useful change.

In gxipixel.c the patch replaces dda_advance with a repeated dda_next.
The old code appears implrecise due to loosing fraction pixels.
It eliminates a 1 pixel difference with Bug688789.pdf .

Minor changes : inserted debug printing and visual trace.

[src/lib.mak src/gsmatrix.c src/gximono.c src/gxidata.c src/gsmatrix.h src/gdevm24.c src/gxipixel.c]

2008-02-18T20:28:59.836803Z Ralph Giles

Propagate the new method argument change introduced in r8528 to the wts
device so that it compiles again.

[src/gdevwts.c]

2008-02-17T23:36:50.588580Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image (continued 4).

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"

This patch doesn't change the algorithm.
It only removes tracks of dead development branches.

[src/gxiscale.c src/siscale.c src/gxipixel.c]

2008-02-17T23:25:47.528293Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image (continued 3).

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"

1. The macro fixed2int_pixround returns a mathematically incorrect
result with negative half-integer arguments.
For example fixed2int_pixround(-2.5) = -3 when the math gives -2.
We guess it was designed for positive page coordinates only,
but later it was applied to objects with negative coordinates.
Particularly, an image can start outside the page with a negative coordinate,
and fixed2int_pixround causes distorsions with banding.

We do not update fixed2int_pixround for backward compatibility 
of other parts of the algorithm. Instead that the patch defines 
a mew macro fixed2int_pixround_perfect, and applies it to
images with Interpolate=true. (gxfixed.h, gxipixel.c, gxiscale.c).

2. Added gx_image_enum_s::yi0 to provide entire image origion in the page.
This value does not depend on band size, so it gives more stability -
see below. (gximage.h).

3. Added entire image sizes to stream_image_scale_params_s
for source image and scaled image. These values do not depend on band size
and provide more stability - see how they are used in siscale.c. 
(sisparam.h, gxiscale.c).

4. (siscale.c) calculate_contrib now computes the filter kernel center
with global (page) coordinates of the image, using the right macro 
fixed2int_pixround_perfect and with the rational arithmetics
instead floats. It gives the kernel center position relatively to source image
with no dependence on the band size.  Also improved the debug printing
about that.

5. In siscale.c we keep track of some experiments done while
developing the patch. We need to save them to history because they're not trivial.
See comments in code. We'll remove them from trunk with a separate patch.

[src/lib.mak src/gxiscale.c src/gxfixed.h src/siscale.c src/sisparam.h src/gximage.h src/gxipixel.c]

2008-02-17T22:32:15.427994Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image (continued 2).

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"

This patch does not change the algorithm,
except adding a debug printing with y coordinate of an image rectangle
in the page coordinate systems. It allows to compare
image fragments, which fall to verious bands depending on band size.

We could wrap the definition of gx_device_memory_s::band_y 
and all access to it with #ifdef DEBUG,
but we don't want to reduce the readability and because
memory and the CPU time expense is too small.

[src/gxclist.c src/gxdevbuf.h src/gxdevmem.h src/gdevppla.c src/gdevmem.c src/gdevbmpa.c src/gdevprn.c src/gdevppla.h src/gdevm24.c src/gxclread.c src/gdevpng.c src/gdevprn.h src/gdevijs.c]

2008-02-17T03:59:45.216145Z Ray Johnston

Fix for regressions introduced with rev 8526. Some resolutions of CMYK, 1-bit
per component devices that had CMYK colors and Gray colors had strange dithers.
Bug 689706.

DETAILS:

The previous changes missed changing the cache index logic in gx_render_ht_1_level,
If the cache had been set with one of the other routines, gx_render_ht_default or
gx_dc_ht_binary_load_cache, then gx_render_ht_1_level would be inconsistent.

EXPECTED DIFFERNCES:

This is expected to resolve the regressions from rev 8527 with pkmraw on:

035-01.ps
119-28.ps
1_2001.pdf
Altona-Testsuite_p2_S_x3.pdf
Altona_Measure_1v1.pdf
Altona_Visual_bb_1v1_x3.pdf
Altona_Visual_sb_1v1_x3.pdf
BEST8-99-Path.fh7.pdf
BW0696FOLD1FRONT.pdf
Bug687489.ps
Bug687724.pdf
Bug687832.pdf
Bug687840.pdf
Bug688308.ps
Bug688822.eps
Bug689269.ps
Clarke-Tate-Manns-Chinese.ai
H00216q.pdf
Original.pdf
S2_Digitalproof-Forum_x3k.pdf
a.pdf
besttest.pdf
cmyk.pdf
foo.pdf
knight.pdf
test.pdf
time1.pdf

[src/gxht.c]

2008-02-14T08:34:56.225081Z Ray Johnston

Improve Halftone tile cache efficiency. Make default cache large enough
on default 32-bit (LARGE) configuration to allow for > 256 cache tiles
when using the 'ht_ccsto.ps' 167x167 Threshold array. Change cache
lookup logic to eliminate collisions when the number of cache slots
exceeds the number of levels (the normal case). Remove duplicated
ht cache default size #defines and normalize the names to end in
_size (to imply size in bytes) and be consistent with other similar
function/macro names.

DETAILS:

When we have more cache slots than the number of levels, we can use
the 'b_level' directly and don't lookup based on the 'number of bits'
(level). This ELIMINATES collisions and on customer 661's benchmarks
resulted in up to 40% performance improvement for some files with
no performance degradation on any when running a large threshold
array based halftone (as the customer does).

The previous -Z. behavior is retained, although small cache sizes
are of questionable value, and this is sort of confusing since a
small memory build will use the same cache size with and without
-Z.

[src/gshtscr.c src/gzht.h src/gsht.c src/gdevprna.c src/gxht.c]

2008-02-12T20:30:17.540929Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image (continued).

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"

This is another partial fix for the bug 687345 for portrait images with Interpolate=true.
Debugged with CET 148-13.

1. The old code inprecisely computes the scaling factor
when interpolating images with Mitchel filter.
The computation was done with the subimage rectangle,
which is different for different bands.
The new code always computes the scale from the entire image rectangle,
which's size is same for all bands.

2. New fields are inserted into gx_image_enum_s and stream_image_scale_params_s
to provide data delivery for (1).

3. In calculate_contrib in siscale.c the variable input_index
is renamed into starting_output_index for a better reflection of its semantics.

4. In calculate_contrib in siscale.c the new variable dst_offset_fraction
is added for a preciser positioning of the filter center,
when it fails between device pixel rows. The old code missed fractional
pixels when stepping to a next band. The expression for its value 
was created empirically, so it may need further improvements.

5. Inserted visual trace instructions for easier debugging.

6. Improved the debug trace printing.

[src/gxdda.h src/lib.mak src/gxiscale.c src/siscale.c src/sisparam.h src/gximage.h src/gxipixel.c]

2008-02-12T19:03:19.125442Z Ralph Giles

Document the need to update the current documentation snapshot.

[doc/Release.htm]

2008-02-09T02:30:31.322331Z Ralph Giles

Clamp the number components read from the ICC DataSource array to the 
number actually allocated to avoid buffer overflow. CESA-2008-001.

[src/zicc.c]

2008-02-09T00:55:38.575949Z Ralph Giles

Include 12 and 16 bit image support as part of the core graphics 
library. Bug 689688.

Details:

Previously, the core graphics library defaulted to including the 
'no12bit' and 'no16bit' modules, which contained stubs. These modules
were replaced by full implementations when the psl2lib (12 bit) and 
pdfread (16 bit) modules were included.

We now consider this build-time flexibility redundant. The extra code is 
not large and the default build generally includes it as these images 
are part of all the newer page description languages. We therefore 
include the unpack routines directly in libcore and remove the 
noi1xbit modules entirely.

[src/lib.mak src/int.mak]

2008-02-07T09:33:22.506379Z Ken Sharp

Fix (pdfwrite): problems with unusual PDF text rendering modes.

Details:
Bug #689596 "Generated PDF loses an image from original".

Although the PDF interpreter stores both stroke and fill colours,
there is no way to pass both these colours to the graphics library.
The PostScript graphics state may only contain a single colour, and the
device interface only allows for a single colour to be passed.

The old code set the text rendering mode, and assumed that if the
current device was pdfwrite this would be sufficient. However the
need to set both colours causes this to fail.

Modified the pdf_ops to set a show/colour/charpath/stroke combination
instead. The existing code will spot text followed by a charpath of
the same text and collapse it back.

A number of other problems with text rendering modes were also addressed
at the same time, but in a less than optimal fashion. This patch
is a temporary fix while an enhancement is coded to better address
the problem.

(gdevpdts.c) pdf_render_mode_uses_stroke, was checking for render mode
not 0 (fill). Altered to check against the actual stroking modes.

(gdevpdtt.c) pdf_update_text_state was setting the text rendering mode
to 0 (fill) under most conditions. Altered this to set the mode from
the graphics state, unless the current font PaintType is 2 (stroke),
and the render mode is 0, in which case set render mode to 1 (stroke).

(pdf_ops.ps) Modify setshowstate to provide better methods of implementing
various text rendering modes to pdfwrite. Rendering is unaffected by
this change.

[src/gdevpdts.c src/gdevpdtt.c lib/pdf_ops.ps]

2008-02-04T22:18:08.283584Z Igor Melichev

Fix (images) : Improve coordinate precision when scaling an image.

DETAILS :

Ghostscript Bug 687345 "Image interpolation problem at a band boundary"

This is a partial fix for the bug 687345 for images with Interpolate=false.
Actually it is related to scaling raher than interpolation.

1. gx_image_enum_begin performed inaccurate coordinate computations,
which caused a different image bias for different bands
due to a wrong coordinate rounding.
The patch replaces it with a better code,
which provides same bias for all bands and for unbanded rendering.
But we're not sure that image placement is now perfect,
because the initial rounding looks strange.
We keep the initial rounding to be compatible with the old code
to minimize raster differences and easier visual analyzis.
For a while we keep the old code in #if 0 because
it may be useful for next patch.

2. image_render_frac contains optimized branches for the case when
image's axes are parallel to page's axes.
Those optimized branches convert parallelograms into rectangles,
except for the last parallelogramm in the chunk.
It caused the last parallelogram to shift in 1 pixel relatively 
to the rectangles. This patch adds the optimized branch
for the last parallelogram, so that all image parts
are now placed with same rounding. It avoids rendering artifacts
with 148-05.ps and many other tests. Note that the patch does not fix
the rectangle shift from parallelograms,
so probably it still contain another bug,
which may need a separate fix.

3. While working on this patch we noted that update_strip
doesn't correctly preserve the fractional part for
dda.strip and dda.pixel . We include a track of that experiment
in the new code in #if 0 section for further development.
See comment in code.

4. Inserted visual trace commands for easier debugging.

[src/lib.mak src/gxidata.c src/gdevddrw.c src/gdevm24.c src/gxclread.c src/gxi12bit.c src/gxipixel.c]

2008-02-03T17:54:23.256452Z Alex Cherepanov

Modify pdf_info utility to match the changes in PDF interpreter interface.
Bug 689680.

[toolbin/pdf_info.ps]

2008-02-01T22:05:51.322620Z Igor Melichev

Fix (graphics) : Interpolated images were shifed in a half of source pixel.

DETAILS :

Bug 687039 "Interpolated images looks strange on Win32 display device".

1. The old code maps the center of the [0,0]th source pixel
   to the output image origin. However Adobe maps 
   the source pixel's corner to the output origin.
   This patch compensates the shift when computing the
   filter kernel position - see '0.5' when computing 'center'.

2. When the filter kernel scans partially outside the source image,
   the math requires to extrapolate source data somenow
   to fill the kernel. However the old code performs some strange
   computation, which we're not sure what for.
   It looks as a rudiment of wrapping the source image
   like a thorus. Well, it's an useful math for periodic patterns,
   but not for single images. Since we never apply siscale.c to 
   patterns, we replace this code portion with a simpler one,
   which duplicates pixels at image boundaries.
   See attachment to the bug to prove that Adobe does so.

[src/siscale.c]

2008-01-31T22:20:32.934182Z Ray Johnston

Fix ColorValues parameter problem when device has total number of bits (depth)
of more than 31 bits, resulting in a "rangecheck" (-15) error.

DETAILS:

The default get_params would not return -1 for values too large for 32 bits,
but the default put_params tested for this. The rangecheck would show up
on 32-bit devices, such as tiff32nc when running:
   "currentpagedevice setpagedevice"
Note that the value returned for ColorValues was platform dependent since
it previously set ColorValues to 1<<depth, but 1<<32 is not -1 on any
platform (that I know of).

[src/gsdparam.c]

2008-01-29T17:02:50.720617Z Igor Melichev

Fix (graphics) : Optimize filling a path with a shading color (continued 2).

DETAILS :

Bug 688970 "(shadings) Optimize filling a path with a shading color".

A minor code cleanup : Removing code portions that became unused.

[src/gsptype2.c src/gsptype2.h src/gximask.c src/gxfill.c]

2008-01-29T12:41:42.337727Z mpsuzuki

Fix (TT): Ignore broken post 2.0 table generated by "Windows Type 1 Installer".

DETAILS:

This is the second fix for bug 689495, that is quite specific
to a TrueType font generated by "Windows Type 1 Installer".

"Windows Type 1 Installer" makes a TrueType font including broken
post table in format 2.0. Previous fix (SVN revision 8351) just
ignores such broken post table, and ISOLatin1Encoding is used
for fallback. When such TrueType font is combined with WinAnsiEncoding,
some glyph names (exists only in WinAnsiEncoding) cannot be resolved.

The post table format 2.0 uses 2 maps to assign a glyph name to
TrueType glyph index: the first map is from TrueType glyph index
to glyph name index (glyphNameIndex[] array), the second map is
from glyph name index to glyph name string (names[] Pascal string
array). The broken post table generated by "Windows Type 1 Installer"
seems to use name[] array by TrueType glyph index directly, and
the glyphNameIndex[] array has unreliable values.

This patch sets /.broken_post when the post table is broken (the
detection of broken post table is same with SVN revision 8351),
then use names[] array by TrueType glyph index when /.broken_post
is set.

[lib/gs_ttf.ps]

2008-01-29T11:54:50.007576Z Igor Melichev

Fix (graphics) : Optimize filling a path with a shading color (continued).

DETAILS :

Bug 688970 "(shadings) Optimize filling a path with a shading color".

A minor code cleanup : prepare to eliminate gx_dc_pattern2_clip_with_bbox.

[src/gximask.c]

2008-01-28T23:02:59.180158Z Igor Melichev

Fix (graphics) : Optimize filling a path with a shading color.

DETAILS :

Bug 688970 "(shadings) Optimize filling a path with a shading color".

When filling a path with a shading color, the old code
first intersects the the clipping path with the path,
then intersects the result with the shading BBox.
However the intermediate result frequently appears to be 
a big list of rectangles, so the second intersection is slow.

This patch accounts that the clipping path and shading BBox
frequently are rectangles, which are easier to intersect with
no converting to paths. Also the shading box is always a quadrangle,
so intersecting it early gives a smaller intermediate result.
Therefore we first intersect the clipping path with the shading BBox,
then with the path.

This patch keeps the old code within #if #endif
until the full regression testing is passed on the server.
Also would like to eliminate the old complicated function 
gx_dc_pattern2_clip_with_bbox, which is still called from elswhere.

[src/gsptype2.c src/gsptype2.h src/gxfill.c]

2008-01-28T10:31:45.187261Z mpsuzuki

Fix: ignore the embedded font resource when PDF interpreter resolves
     the unembedded font resource.

DETAILS:

Some PDF generators (e.g. Microsoft Office 2007 add-on to export the
documents to PDF format) emits incompatible font objects with same
resource name. The sample PDF in bug 689637 includes 2 "Times New
Roman" font objects: one is embedded CID-keyed TrueType for Cyrillic
glyphs, another is unembedded WinAnsiEncoding TrueType (possibly for
empty page header or footer). When PDF interpreter resolves latter
unembedded "Times New Roman", external font resource should be used
(Adobe Reader does so). But current Ghostscript uses former embedded
"Times New Roman", because the sample PDF includes "Times New Roman"
without randomization prefix.

To avoid the confusion between embedded and unembedded fonts with
same name, pfont->is_resource flag (=0 embedded, =1 unembedded)
is checked during font object resolution. Even if a cached font
object with same name is found, it is ignored if it is embedded
font. To execute this check in PostScript space (pdf_font.ps),
new operator ".isregisteredfont" is introduced. This patch assumes
that embedded font object in PDF is resolvable by tracking the
indirect object references. If a PDF assumes name-based resolution
of embedded font object (without indirect object), it may be
rendered by external font resource. At present, we don't have
such sample.

By this patch, bug 689637 is fixed.

[lib/pdf_font.ps src/zfont.c]

2008-01-28T09:58:54.861949Z mpsuzuki

Fix (TT): Fix a bug in /getinterval_from_stringarray

DETAILS:

getinterval_from_stringarray is a procedure defined to
extract a substring from long table of TrueType font.
When a table is too long to fit into 16bit-length string
object in PostScript, gs_ttf.ps split the table into
the array of strings. When getinterval_from_stringarray
is requested to extract a string which starts in one
member and ends in following member, it returns a string
that only the content of the first member is copied.
There was a wrong conditional that made the substring
extraction aborted. It was fixed to return the correct
substring.

By this fix, bug 689593 (IPA font 2007 edition cannot
be parsed correctly) is closed.

[lib/gs_ttf.ps]

2008-01-28T08:50:10.139318Z Igor Melichev

Fix (clist & transparency) : Improve the compositor queue logic (continued).

DETAILS :

The last commit is incomplete due to human error.
Please don't use the last revision.

Bug 689492 "Ghostscript uses a large amount of memory", part 2.

This patch fixes the missed shadow of a text, which is mentioned 
in the Comment #8 of the bug report.

1. Added macros for configuring visual trace for easier debugging.
2. The idle transparency bufer allocation condition was wrong. 
   The patched code allocated ;esser buffers.
3. Found more cases when a mask needs to be released.
4. The old code immediately executes idle masks.
   It caused a wrong order for compositor execution
   with images that have a soft mask.
   With the test case the image's mask was executed before 
   the group that containing the image.
   It caused a premature releasing of a mask,
   which preceeeds the group and must noy be released.

   The new code delays the execution of idle masks
   after all containing groups are executed,
   so that the queue is now longer and stores all masks.
   We beleive that's not harmful, because
   transparency queue elements are pretty small and
   work for hos based applications only.

   The new function mark_as_idle works for the new logic.
   Few aother functions are enhanced with a smarter
   processing of the idle flag.
5. Improved comments for the compositor queue logic.

[src/gdevp14.c]

2008-01-28T08:45:21.850870Z Igor Melichev

Fix (clist & transparency) : Improve the compositor queue logic.

DETAILS :

Bug 689492 "Ghostscript uses a large amount of memory", part 2.

This patch fixes the missed shadow of a text, which is mentioned 
in the Comment #8 of the bug report.

1. Added macros for configuring visual trace for easier debugging.
2. The idle transparency bufer allocation condition was wrong. 
   The patched code allocated ;esser buffers.
3. Found more cases when a mask needs to be released.
4. The old code immediately executes idle masks.
   It caused a wrong order for compositor execution
   with images that have a soft mask.
   With the test case the image's mask was executed before 
   the group that containing the image.
   It caused a premature releasing of a mask,
   which preceeeds the group and must noy be released.

   The new code delays the execution of idle masks
   after all containing groups are executed,
   so that the queue is now longer and stores all masks.
   We beleive that's not harmful, because
   transparency queue elements are pretty small and
   work for hos based applications only.

   The new function mark_as_idle works for the new logic.
   Few aother functions are enhanced with a smarter
   processing of the idle flag.
5. Improved comments for the compositor queue logic.

[src/gxclrast.c]

2008-01-26T13:21:27.618379Z Igor Melichev

Fix (transparency) : Memory leak after an image with soft mask.

DETAILS :

Bug 689492 "Ghostscript uses a large amount of memory".

When a PDF command stream executes "/d1 gs /d2 gs" where d1 and d2 both define an 
untrivial SMask (not important whether they are same mask or different masks),
the second mask replaces the first one, and the first one to be released.

When a transparent group includes an image with a soft mask 
(this case happens in the test document for the bug), the image's soft mask must 
*temporary* replace the groups soft mask, and the first mask must not 
be released.

The old code does not distinguish these cases, assuming that 
a mask buffer is being released after rendering a group with it.
Due to that some mask buffers were never released,
causing a memory leak with banded rendering,
because the clist interpreter doesn't run the garbager.

A simpler case for demonstrating the leak could be created with 
"/d1 gs /d2 gs" as explained above.

The patch defines a new bool gs_transparency_mask_params_s::replacing, 
gx_transparency_mask_params_s::replacing and gs_pdf14trans_params_s::replacing
for passing the necessary information through old interfaces.
Note that as usual we cannot change the device interface for 
an easier passing of this info, because we need to maintain
the compatibility with 3d party devices.

Using the 'replacing' flag, pdf14_push_transparency_mask either replaces
the old mask buffer, or creates a new one as a temporary substitution for
an image with a soft mask. In the second case the group mask is
saved in the last transparency stack element in the field 
buf->maskbuf. After rendering the image's group 
the function pdf14_pop_transparency_group restores 
the saved mask buffer, as it was set in the transparency context
before starting the image's mask. For more details see
comments added into gdevp14.c .

[src/gstrans.c src/ztrans.c src/gstparam.h src/gstrans.h src/gdevp14.c]

2008-01-25T08:17:16.431601Z Igor Melichev

Fix (Font renderer) : Horizontal metrics sometimes applied with WMode 1 fonts.

DETAILS :

Bug 689464 "Japanese font writing direction (vertical ?)".
Bug 689646 "vertical text rendered by external CIDFontType0 flows horizontal".

1. When a descendent font of a type 0 CID font has zero FontBBox,
   use the FontBBox of the CID font. This is another case when
   a 3d party software generates a font with zero FontBBox.
   We believe that such font data is incorrect, 
   but this patch provides a simple workaround.

2. When FontBBox to be used to compute Metrics2,
   don't obtain sbw from type 1 glyph descriptions.
   The old code does so causing the horizontal metrics
   to be used when rendering a WMode 1 font. 

3. The case (2) appears to have an exception,
   when the font has CDevProc. In this case 
   we do need sbw from the glyph description
   to provide arguments for CDevProc.
   See alse the comment added to code.

Note that Type 1 font renderer now depends on some knowledge about type 0 CID font.
But this dependence does not break the configurability
because only an .h file is included into the Type 1 font renderer.

[src/int.mak src/zchar1.c]

2008-01-23T21:13:16.354024Z Igor Melichev

Fix (clist & transparency) : Inconsisting compressed color index info.

DETAILS :

Bug 689626 "Segmentation Fault using 'bit' device to clist.".

The bug was put while the custom color callback merge in revision 7795.
The color index information to be passed to the clist writer
after restoring the color information to the clist writer.
Before restoring it is set to a blending space,
which may be incompatible with the target device's color index type.

I'm unable to test this patch fully
due to no test cases for antrivial spot colors with transparency.

[src/gdevp14.c]

2008-01-23T18:33:35.648405Z Igor Melichev

Fix (DSC parser) : Avoid a structure type name duplicate.

DETAILS :

The old name cmd_list_s is also defined in gxclist.h .
It confused MSVC debugger while tracing gxclutil.c for bug 689626.

[src/zdscpars.c]

2008-01-23T18:12:27.956590Z Igor Melichev

Fix (patterns) : The clipping was wrong with antrivial pattern matrix (continued).

DETAILS :

Bug 687196 "Incorrect pattern processing from Adobe test file pattyp1.ps".
This is a partial fix for the bug, which fixes vector devices only.
It closes the bug with the last patch applied.

The old code set identity matrix for a pattern dstream accummulation.
It appears incompatible with Type 2 pattern handler, which assumes
the default page matrix. This patch changes the matrix and improves
the pattern stream accumulator with accounting the default page scale.

[src/gdevpdfi.c src/zpcolor.c]

2008-01-23T18:09:49.970130Z Igor Melichev

Fix (patterns) : The clipping was wrong with antrivial pattern matrix.

DETAILS :

Bug 687196 "Incorrect pattern processing from Adobe test file pattyp1.ps".
This is a partial fix for the bug, which fixes raster devices only.

1. The old code always sets a canonic rectangular clipping,
   which is wrong with rotated or skewed matrices.

   Note the patch resets path in the pattern's graphic state.
   It is not done in the old code, so it may cause raster diferences.
   But it is required in PLRM chapter 8 by the definition of 'makepattern'.

2. Adjust the pattern matrix to pixel grid.
   After doing the change (1) the clipping area appears too small for some cases.
   It happens because the tile origin falls at fractional pixels,
   The new code causes a massive raster difference, which actually is minor
   (a shift of some pattern instances in 1 pixel).

   Note that PLRM requires to adjust pattern matrix in the definition of 'makepattern',
   but doesn't explain how to.

3. In compute_inst_matrix perform computations in 'float'
   because the matrix is represented with 'float'.

4. (miror change) Expanded the 'mat' macro for easier debugging with MSVC.

[src/gsptype1.c]

2008-01-23T16:49:51.344351Z Ken Sharp

Fix (pdfwrite): Wrong format string for pprintg.

Details:
Bug #689661 "pdfwrite : Incorrect sprintf format".

(gdevpdfu.c) The new function, 'pdf_write_font_bbox_float,
added in revision 8360, used the wrong format string (%f
instead of %g) to write the font BBox.

[src/gdevpdfu.c]

2008-01-23T13:30:39.283039Z Igor Melichev

Fix (shadings) : A memory deallocation problem.

DETAILS :

Bug 689660 "memory deallication problems with shadings".

The old code used pdev->memory for temporary storing 
an intersection of clipping path with shading bbox.
This is the global memory space.
However if the intersection is trivial,
the path of the clipping path is copied from the 
original clipping path, which is allocated in the local memory space.
Later it causes a freeing of path segments to a wrong memory space.

This patch chooses the original clipping path's memory space
when the clipping path is available, and the global space otherwise.

[src/lib.mak src/gsptype2.c]

2008-01-23T13:23:09.676697Z Till Kamppeter

Added HP's KRGB patch for improved control of true black text printing on color printers with HPIJS. Bug #689065 (Ubuntu LP: #69905) is fixed in this updated version of the patch.

[src/gdevijs.c]

2008-01-21T20:59:55.657274Z Igor Melichev

Fix (save/restore) : Remove gs_ref_memory_s::inherited.

DETAILS :

It is not used since revision 5250.

[src/gxalloc.h src/igc.c src/gsalloc.c src/isave.c]

2008-01-20T22:23:07.686290Z Igor Melichev

Fix (save/restore) : Do not create invisible save levels.

DETAILS :

Invisible save levels is a rudiment of old code.
gs_ref_memory_s::scan_limit effectively work instead them 
since revision 6706 committed on April 14 2006.

We're not sure what gs_ref_memory_s::inherited works for.
Keeping it updated for a while, and don't remove the 
old code for reference. Note the maintanence of gs_ref_memory_s::inherited
in the new code is not fully equivalent to old code.

[src/isave.c]

2008-01-20T09:56:15.017727Z Ralph Giles

Only report the ICC Profile colorspace when the jasper library's debug 
level is above zero. Bug 689662.

[jasper/src/libjasper/jp2/jp2_dec.c]

2008-01-20T09:21:15.660626Z Igor Melichev

Fix (save/restore) : Compact the changes list against big memory leak.

DETAILS :

Bug 689536 "Memory leak reading PostScript file (PMR 53877).".

The old implementation includes an optimization agains a big CPU time expense
in 'save' and 'restore' for sedtting and resetting l_mark flags.

Normally, when executing 'save', the memory manager needs
to reset l_new marks for objects modified or allocated at the last save level,
so that their further modification on the next save level to be saved
in the changes list. When executing 'restore' these flags to be set 
to prevent redundant save.

When the last save level includes many allocations, 
the number of scanned objects is big and it causes a significant
time expense. A long ago Ghostscript implements an optimization,
which shorten the scanned list against the big time expense.
However the shortening causes redundant saving.

The redundant saving itself isn't harmful because
it happens seldon and spends a small memory.
However if a redundant save element points to a reference to
a newly allocated array or dictionary, the array or dictionary
can't be garbage collected. When a client executes such allocation and 
same reference modification multiple times, all allocated arrays
and dictionaries persist in memory, causing a significant memory leak.

This patch compacts the saved change list whem a significant memory 
allocation is accummulated since last save or since last compacting.
The new field gs_ref_memory_s::total_scanned_after_compacting
works for counting allocated elements. The new function 
drop_redundant_changes performs the compacting. See comments in its code.

The threshold for starting drop_redundant_changes is choosen arbitrary. 
It must not be too small, because the CPU time expense
optimization wouldn't be effective. Also it can't be too big,
because the memory leak recovery would not be effective.
This patch sets it to about 1600000 objects,
which is an experimental trade-of.

Note that this patch reduces the memory leak but doesn't
eliminate it to zero, because more data may be allocated
after the last filtering.

We could implement a filtering within the garbager rather 
than withis save/restore. Actually it wouldn't change 
the behavior to much, because the threshold would be still needed 
against the CPU time expense, It happens because the scanning
deals with array or dictioanr elements rather than with
whole aggregates. Also we don't want to complicate the garbager.

Note that the arbitrary threshold is bigger than neccessary
for the simplified test case included into the bug report.
Due ti that the leak elimination does not happen with this test.
For the compacting to take place the sequence "NEWJOB Z"
to be repeated 90 times rather than 40 in the supplied test. 
The customer's test does demonstrate the leak reducing.

[src/gxalloc.h src/gsalloc.c src/isave.c]

2008-01-18T21:50:38.830947Z Alex Cherepanov

Explicitly close CMap files opened during CMap-CIDFont font enumeration.
On certain systems file handles were used up before GC freed inaccessible
handles causing PostScript errors. Bug 689594.

[lib/gs_cidcm.ps]

2008-01-18T06:17:02.734368Z Alex Cherepanov

Add redefinition of setpagedevice to ps2epsi utility to support PS files
that call setpagedevice. Bug 689650.

[lib/ps2epsi lib/ps2epsi.ps lib/ps2epsi.cmd lib/ps2epsi.bat]

2008-01-17T13:50:43.754302Z Igor Melichev

Fix (clist interpreter) : Skip idle compositors, step 6.

DETAILS :

Enabling visual trace for buffer backdropping.

[src/gdevp14.c]

2008-01-17T13:47:11.707889Z Igor Melichev

Fix (visual trace) : Add a single pixels painting operation.

DETAILS :

This patch doesn't change the algorithm.
It only enhances debuging instrument.
The new instrument will be used for debugging the clist logics about transparency masks.

[src/vdtrace.h src/vdtrace.c src/dwtrace.c]

2008-01-17T13:37:19.476394Z Igor Melichev

Fix : Cygwin/gcc warnings.

[src/gdevcgm.c src/int.mak src/gstrans.c src/gdevpdfe.c src/gdevbit.c src/devs.mak src/gxclread.c src/gscdevn.c src/gscie.c src/gxclutil.c src/lib.mak src/gdevp2up.c src/gxclmem.c src/gdevdflt.c src/gdevpdtd.c src/gxcomp.h src/gsovrc.c src/gdevprn.c src/gscsepr.c src/genarch.c src/ztoken.c src/gdevp14.c]

2008-01-17T03:16:02.921192Z Alex Cherepanov

Comment-only change: remove obsolete reference to MS-DOS limitations and 
mention that PDF interpreter passes un-escaped font names to PS level.
Bug 689651.

[lib/Fontmap.GS]

2008-01-17T03:12:45.266699Z Alex Cherepanov

Remove the warning about non-embedded TrueType fonts in PDF files because it
confuses users but seems to have little effect on the main producer of
non-conforming files.

[lib/pdf_main.ps lib/pdf_font.ps]

2008-01-16T23:35:48.055065Z Ralph Giles

Unbreak the build.

[src/gdevp14.c]

2008-01-16T22:55:42.290132Z Igor Melichev

Fix (clist interpreter) : Skip idle compositors, step 5.

DETAILS :

This really skips compositors which don't paint anything.

Compositor parameter list structures are extended with a new boolean field 'idle'.
These fields pass information whether something was painted to a compositor.
We choosen this way for passing this info because 
(1) we can't change the device inteface with new function arguments, and 
(2) we need to pass it through the device chain
(for example, when a clipper is installed onth the overprint device).

This patch only affects the transparency and the overprint.
Other compositors (gsalphac.c, gxropc.c) behave as before. 
They may need further improvements.

This patch does not fix the bug 689492.
That fix may be done either before or after this one,
but in any case the patches need to adopt each to another.

The new compositor virtual method is_closing
checks whether a current compositor command
closes an older command, and finds the opening command.
Now we provide untrivial implementations for transparency and overprint compositors.
Would like to define an enum for return values of is_closing.

The old device method create_compositor now passes the 'idle' parameter via 
gs_composite_s structure. By default it is false and the behaviour
is same as before. But the clist interpreter is modified
to provide true value when a compositor doesn't paint anything.
To compute this flag the compositor queue now works with its full power.
Note we changed the queue representation with a bilikned list.

This patch entroduces the concept of 'friendly operations'
for compositor operations. These are those operations, which
may interchange with compositor installation/deinstallation.
One example is halftone operations, which always affect
the device below the compositor device, i.e. the target device
of the compositor device. The new compositor virtual method
is_friendly is implemented in an intrivial way for the
transparency compositor especially to exchange with halftone
operations while queueing clist operations.
This especially helps to delay the pdf14 device installation
so that it may completely annihilate with its deinstallation
if nothing is painted through the compositor in a band.

Overprint and transparency compositor implementations
are changed with checking the idle flag.
If it is set, they don't perform neither color blending, nor
raster buffer allocation. Note the pdf14 device maintains the buffer stack
as before, but the allocation of buffers may be skipped.
It saves significant time from cleaning up raster buffers when they are idle.

This patch may need further improvements for the case when
different compositor types are mixed in one queue. 
We could not fully test it due to absence of practical tests.

Another useful improvement would be to convert 
"0 .inittransparencymask 1 .inittransparencymask dict .setblendparams"
into a single command. It would simplify the compositor queue logic.
Also we think that the name .inittransparencymask doesn't reflect the function purpose.
Will improve someday.

We're not sure whether this patch correctly works with idle masks.
We could not debug it due to no practical cases.
Possibly idle mask will need an additional effort to skip 
the group painting to the band.

Also disabled cmd_put_halftone in c_pdf14trans_clist_write_update -
see comment in code.

Monor change : Inserted a visual trace support for transparency buffers.

[src/lib.mak src/zdict.c src/gdevdflt.c src/gdevp14.h src/gstrans.c src/gsalphac.c src/gxcomp.h src/gsovrc.c src/gstparam.h src/gstrans.h src/gxclrast.c src/gsovrc.h src/gdevp14.c]

2008-01-09T00:36:30.938192Z Marcos H. Woehrmann

Fixed umlauts (maybe, am having trouble testing the results).

[man/de/pdf2dsc.1]

2008-01-09T00:24:50.313955Z Marcos H. Woehrmann

Corrected man page (thanks to Peter Dyballa).

[man/de/pdf2dsc.1]

2008-01-09T00:00:59.719986Z Alex Cherepanov

Add unmodified byte-oriented AES encryption code by Brian Gladman. These
files serve as a reference point. They are not yet included into any
project nor can be compiled by some of the compilers we support.

[src/aes.h src/aes.c]

2008-01-07T20:58:40.018332Z Ralph Giles

Remove the obsolete gconfigv.h.

[src/lib.mak toolbin/msvcxml.bat src/openvms.mak src/unix-end.mak src/gs.mak src/std.h src/gscdefs.h src/macos-mcp.mak src/openvms.mmk src/os2.mak src/wctail.mak src/winlib.mak]

2008-01-07T20:58:36.882379Z Ralph Giles

Remove EXTEND_NAMES from the top level makefiles.

There is a fallback to the default value of 0 in inameidx.h so there
is no change in the default behaviour. The extended name table can
still be activated by defining EXTEND_NAMES on the compiler command
line or changing the source directly.

[toolbin/msvcxml.bat src/openvms.mak src/unix-end.mak src/gs.mak doc/Use.htm src/int.mak src/macosx.mak src/Makefile.in src/inameidx.h src/unix-gcc.mak src/macos-mcp.mak src/openvms.mmk src/os2.mak src/wctail.mak src/winlib.mak]

2008-01-07T18:43:02.811990Z Henry Stiles

Deprecate USE_FPU, no changes expected.

[src/gxchar.c src/openvms.mak src/unix-end.mak src/gsjmorec.h src/macosx.mak src/dvx-gcc.mak src/gxfarith.h src/msvccmd.mak src/siscale.c src/unixansi.mak src/gsmisc.c src/msvclib.mak src/gsfemu.c src/os2.mak src/openvms.mmk src/lib.mak src/bcwin32.mak src/ugcclib.mak src/gscie.h src/Makefile.in src/unix-gcc.mak src/gxfixed.h src/msvc32.mak src/macos-mcp.mak src/wccommon.mak src/wctail.mak src/winlib.mak src/watclib.mak]

2008-01-02T23:58:44.056429Z Alex Cherepanov

Re-export runpdfbegin, dopdfpages, and runpdfend procedures, which turned out
to be used by 3rd party programs. Partly revert the rev. 8325.

[lib/pdf_main.ps]

2008-01-02T13:10:59.547816Z Ken Sharp

Fix (pdfwrite): Tidy up after the prior patch, 
algorithmically this is the same as before.

Details:
Bug #689597 "PDF created with NoEmbed has wrong BaseFont name".

gdevpdtb.c, gdevpdtf.c, gdevpdtf.h, remove the redundant
routine pdf_choose_font_name.

gdevpdtb.c, gdevpdtd.c, gdevpdtf.c, gdevpdtb.h, modify the
function pdf_base_font_alloc to remove the redundant
argument 'orig_name', we always use the original font name
now.

[src/gdevpdtb.c src/gdevpdtd.c src/gdevpdtf.c src/gdevpdtb.h src/gdevpdtf.h]

2008-01-01T20:44:52.186969Z Alex Cherepanov

Don't ignore xref stream in a hybrid  "classic xref" + "stream xref" file
as PDF 1.5-compatible should do. Thanks to SaGS for the patch. Bug 688282.

[lib/pdf_main.ps]

2008-01-01T14:28:30.927323Z Alex Cherepanov

Replace clearly invalid generation numbers out of 0..65535 range with 0 during
rebuilding of xref table. Bug 689634.

[lib/pdf_rbld.ps]

2008-01-01T01:30:52.687921Z Ralph Giles

Remove the SYSTEM_CONSTANTS_ARE_WRITABLE compile-time define.

Details:

This was added so a particular application could rewrite the product name,
version, etc. after loading the library. We're not aware of anyone still
using the feature, and if so they can just change the source, which is
more appropriate in any case.

Also, remove USE_ASM from the msvc project file.

[toolbin/msvcxml.bat src/openvms.mak src/unix-end.mak src/gs.mak src/gscdefs.h src/openvms.mmk src/os2.mak src/wctail.mak src/winlib.mak src/gscdef.c]

2007-12-31T22:46:50.849681Z Alex Cherepanov

Add a flag that marks PDF text rendering mode 3 to avoid confusion with other
non-rendering text operations such as stringwidth. This avoids unnecessary 
calculation of the current point, which fails when the CTM is singular. This
patch continues conservative approach to the text rendering modes started in
rev. 4006. Bug 689614, customer 384.

[src/gxchar.c src/gstext.c src/gstext.h]

2007-12-31T19:06:52.216061Z Ray Johnston

Correct polarity of the stochastic threshold array so that the images are
not too dark.

DETAILS:

The original conversion from the threshold array provided by CalComp had
the threshold values inverted so that the implicit linearization was
inverted, making images much too dark. This correction provides reasonable
results on printers. Fine tuning of transfer functions can be used for
specific printers.

[lib/ht_ccsto.ps]

2007-12-31T18:07:59.109475Z Ralph Giles

Remove the USE_ASM build flag.
    
Details:
   
It was originally added to support vga mode setting, and has been 
used for a few minor optimizations since. We don't believe these 
are worth the trouble with modern compilers, so it is removed to 
simplify configuration management.

[src/unix-end.mak src/openvms.mak src/watcw32.mak src/gdevpcfb.c doc/Develop.htm src/msvccmd.mak src/iutilasm.asm src/gsmisc.c src/msvclib.mak src/dvx-head.mak src/devs.mak src/os2.mak src/openvms.mmk src/unixhead.mak src/lib.mak src/bcwin32.mak src/winint.mak src/gdevegaa.asm src/msvc32.mak src/gdevsvga.c src/gsutil.c src/wccommon.mak src/wctail.mak src/winlib.mak]

2007-12-31T06:10:33.027699Z Alex Cherepanov

Don't try to obtain the bounding box of a glyph when FontBBox is invalid and
CTM is singular. Set an empty box and consider it valid. The bounding box is
not used when the CTM is singular. Bug 689614, customer 384.

[src/zchar1.c]

2007-12-29T02:53:21.940078Z Ralph Giles

Remove the ARCH_CAN_SHIFT_FULL_LONG define and its derivatives. Bug 689611.

Details:

This was only used in one place, in an attempt to support
non-portable code. However this caused problems with recent
gcc's which optimized the test one way and the code in gxshade.c
another. We're therefore removing it entirely and just using
portable code.

[src/std.h src/gxshade.c src/gxbitops.h src/genarch.c]

2007-12-27T22:28:36.610626Z Ralph Giles

Add -Wundef to the autoconf build.

There have been a number of problems related to missing defines lately.

[src/configure.ac]

2007-12-22T19:13:20.335131Z Ralph Giles

Correction to the refcount documentation.

Our allocator can't double free, but attempting to trace a freed pointer
can confuse things, possibly resulting in a segfault or other
misbehaviour.

[src/gsrefct.h]

2007-12-22T02:05:40.922995Z Ralph Giles

Also remove gdevcmap from the documentation.

[doc/Develop.htm]

2007-12-22T02:05:36.008019Z Ralph Giles

Include gconfigv.h in std.h so defines like USE_FPU are more
consistently defined.

[src/lib.mak src/gscie.h src/std.h src/gdevpcfb.c src/gxfarith.h src/siscale.c src/gsmisc.c src/gdevsvga.c src/devs.mak src/sidscale.c src/gxpcopy.c]

2007-12-22T00:19:36.075695Z Ralph Giles

Document the behaviour of the reference count macros.

[src/gsrefct.h]

2007-12-22T00:10:05.865239Z Ralph Giles

Remove the unused cmap device.

[src/lib.mak src/ugcclib.mak src/gslib.c src/gdevcmap.c src/gdevcmap.h]

2007-12-21T19:58:19.459173Z Ralph Giles

Further update the graphics library unit test and build. The gslib test 
executable builds and works now.

[src/ugcclib.mak src/gslib.c]

2007-12-21T19:56:07.995361Z Ralph Giles

Construct romfs.dev in the graphics library's gen directory instead of 
the ps interpreter's so building just the library is possible.

[src/gs.mak]

2007-12-21T10:31:00.226023Z Ken Sharp

Fix (jbig2dec): The global data stream for a JBIG2 image in a PDF
file was being released, and the data freed by the garbage collector,
before the data was used.

Details: Bug #689568 and #689569. Uses the patch supplied by Alex
in thread for #689569, implements Ralph's comments about the structure 
naming. Does not attempt to change the memory allocator. This slightly
modified patch also works with the Luratech decoder.

sjbig2.h, sjbig2_luratech.h; make the global data structure 
s_jbig2_global_data_t public. Store the structure in the 
stream decoder state.

sjbig2.c, sjbig2_luratech.c; store a pointer to the global
data structure. 

sjbig2_luratech.c; don't reset the pointer during initialisation!

zfjbig2.c; Pass the global pointer to the stream decoder for
release in the finalize routine.

[src/sjbig2_luratech.h src/zfjbig2.c src/sjbig2.c src/sjbig2.h src/sjbig2_luratech.c]

2007-12-21T00:15:53.911110Z Ralph Giles

Remove some old helper scripts.

They aren't used much and we no longer wish to maintain them.

[toolbin/many2pdf.tcl toolbin/pre toolbin/gssubst toolbin/gsindent]

2007-12-21T00:11:54.376327Z Ralph Giles

Make pre.tcl more robust in creating temporary files.

Also update the copyright header and fix a bug in an error handler.

[toolbin/pre.tcl]

2007-12-19T06:25:41.308572Z Alex Cherepanov

Ignore operator readonly when it is applied to a wrong type inside an
embedded Type 1 font. Bug 689617, customer 580.

[lib/pdf_font.ps]

2007-12-19T06:22:22.816836Z Alex Cherepanov

Treat the text after empty ASCII block in PFB stream as ASCII sub-stream
terminated by 0x80 character, a presumed header of the next block.
Bug 689617, customer 580.

[src/sfilter1.c]

2007-12-19T00:25:08.107768Z Ralph Giles

Update the graphics library unit tests for recent code changes.

[src/gslib.c]

2007-12-18T10:03:07.564012Z Ken Sharp

Fix (pdfwrite): Font Descriptors for fonts not embedded, due to
EmbedAllFonts=false, did not preserve the original font name.

Details:
Bug #689597 "PDF created with NoEmbed has wrong BaseFont name".

(gdevpdtd.c) pdf_font_descriptor_alloc, do not use the 'embed'
status to determine whether to use the font or key name. Always
use the font name.

pdf_compute_font_descriptor. Remove the simplistic test for
symbolic. In the loop retrieving glyph information, check to see 
if the glyph name is present in ISO Latin 1. If not, the font is
symbolic.

[src/gdevpdtd.c]

2007-12-18T10:02:09.815887Z Ken Sharp

Fix (pdfwrite): PDFXTrimBoxToMediaBoxOffset used the supplied data
incorrectly.

Details:
Bug #689578 "PDFXTrimBoxToMediaBoxOffset".

Patch supplied by Adam Augusta.

(gdevpdf.c) pdf_write_page. When using the PDFXTrimBoxToMediaBoxOffset
data, we need to subtract the bottom right offset from the MediaBox
not add it, the trim box must lie inside the media (see Acrobat 7.0
distiller parameters manual, pp. 102-103).

[src/gdevpdf.c]

2007-12-18T03:40:36.305448Z Ralph Giles

Remove the unused composite_rop device.

DETAILS:

This was an attempt to implement PCL raster operations as an interposed 
device which first rendered to an intermediate buffer and them 
composited with the underlying device buffer, similar to how the
"PDF 1.4 Transparency" device works.

While this would be a nice approach, allowing raster operations to 
function in more color spaces, it was never completed, and presents
a maintenance burden for ongoing clist improvements. We are therefore
removing it. It can be reinstated later as a starting point for further 
development if needed.

[src/lib.mak src/gsropc.c src/gsropc.h doc/Develop.htm src/gxropc.h]

2007-12-17T21:33:35.320044Z Igor Melichev

Fix (transparency) : Providing a right nested masks logic (continued).

DETAILS :

The revision 8439 missed an initializer.

[src/gdevp14.c]

2007-12-17T07:28:22.397599Z Alex Cherepanov

Improve outline pdfmarks produced by the pdf interpreter. Add page number and view
values. Thanks to Leon Bottou for the patch. Bug 689599.

[lib/pdf_main.ps]

2007-12-16T15:38:09.417159Z Igor Melichev

Fix (clist interpreter) : Improving debug trace about compositors.

DETAILS :

This only improves a debug printing.
The algorithm isn't changed.

This change simplifies the debug trace analysis with
using C function names as event marks in the trace.
Also return_error is now not used when c_pdf14trans_write
is called for estimating the buffer size.

[src/gdevp14.c]

2007-12-16T01:37:56.744199Z Alex Cherepanov

Don't skip space characters after eexec in embedded PDF fonts but
continue to do so in other cases. Bug 689615.

[src/seexec.c src/sfilter.h lib/pdf_font.ps src/zmisc1.c doc/Language.htm]

2007-12-14T19:51:01.706015Z Alex Cherepanov

Work around a GCC 4.2.1 bug on PowerPC that generates incorrect code in the
release build affecting scanning of binary tokens containing floating point
numbers. Bug 689586.

[src/ibnum.c]

2007-12-14T18:40:31.738291Z Marcos H. Woehrmann

Added casts to sprintf debugging statements (thanks for Michael Rutter for finding these).

[contrib/eplaser/gdevescv.c]

2007-12-14T18:31:39.938693Z Alex Cherepanov

Align the pointer to gx_clist_state array in gx_device_clist_writer device to
the natural boundary to avoid misaligned memory access and bus errors on ARM
processors. Bug 689600.

[src/gxclist.c]

2007-12-12T20:29:44.002303Z Igor Melichev

Fix (transparency) : Providing a right nested masks logic.

DETAILS :

This redoes the change 8340 without extra assumptions.
See comments in code.

[src/gdevp14.h src/gdevp14.c]

2007-12-12T19:58:31.269810Z Igor Melichev

Fix (transparency) : Unwinding the nested masks logic.

DETAILS :

The patch 8340 appears to be optimized for a particular case,
in which a call to pdf14_push_transparency_group
"will have been preceded by pdf14_push_transparency_mask ... pdf14_pop_transparency_mask".
This assumption is not true in general, when the clist interpreter
skips idle groups (either with incoming improvement or 
with using the band complexity array).

This patch unwinds the change 8340 and the dependent change 8342.
It also simplifies the garbager descriptor for pdf14_buf_s.

The nested mask problem is now reopen,
but we intend to close it shortly with a different patch.

[src/gdevp14.h src/gdevp14.c]

2007-12-12T19:00:44.753250Z Igor Melichev

Fix (clist interpreter) : Skip idle compositors, step 4.

DETAILS :

gs_pdf14trans_s doesn't need a reference counting.
Actually it was never used, so removing it should be
algorithmically equivalent.

[src/gsropc.c src/gsalphac.c src/gxcomp.h src/gsovrc.c src/gdevp14.c]

2007-12-11T23:47:18.340705Z Ray Johnston

Fix for SEGV when more than 4 colorants used with psdcmyk device.
Bug 689457 for customer #460.

DETAILS: 

Apparently the psdcmyk device never got updated with the ret_devn_params proc
as did the tiffsep device.

[src/gdevpsd.c]

2007-12-11T21:27:02.763129Z Ralph Giles

Store the posix persistent cache's last modified line as an unsigned 
long to avoid portability problems when reading and writing. Bug 689604.

DETAILS:

Previously we used time_t directly, but read and wrote it to the 
filesystem using the %ld printf format specifier, which is wrong
on systems where long int and time_t are different widths. Instead
we stort it as an unsigned long int, coercing the return value of
time(). This will be a year 2038 problem on systems with 32 bit longs, 
but seems the better option for portability now. There is no cast,
so the compiler should warn if this loses precision.

[src/gp_unix_cache.c]

2007-12-11T16:54:05.187153Z Marcos H. Woehrmann

Replaced C++ comments with C comments (// -> /* */).

[imdi/imdi.c imdi/imdi_tab.c imdi/imdi_gen.c imdi/cctiff.c]

2007-12-11T08:29:58.454613Z Ken Sharp

Fix (jbig2dec): Missing support for decoding multiple symbols
from a symbol dictionary, when using refinement/aggregation.

Details:
Bug #688945 "jbig2dec FATAL ERROR decoding image: aggregate
coding with REFAGGNINST=2 (segment 0x03)".

Improved the previous patch. We need to have a symbol dictionary
which contains all the original symbols, plus all the symbols decoded
so far, for the refinement/aggregation. Previously we created this
anew for each symbol, this patch creates the dictionary once at
the start of the dictionary decoding, and releases it when decoding
is complete.

Also releases the Huffman tables (if used), which was missed
in the previous patch.

[jbig2dec/jbig2_symbol_dict.c]

2007-12-10T22:11:05.461373Z Tor Andersson

Update to previous commit. Add pdf14_buffer maskbuf pointer to GC structures.

[src/gdevp14.c]

2007-12-10T20:27:11.787298Z Alex Cherepanov

Fix a compilation error on Tru64's native cc, which doesn't tolerate spaces
between -I and the directory. Thanks to M. Rutter for the patch. Bug 689602

[contrib/contrib.mak]

2007-12-10T16:13:26.551663Z Tor Andersson

Pick up the transparency mask buffer when a new transparency group is pushed rather than when it is popped. Solves memory leaks and incorrect rendering when transparency groups are nested.

[src/gdevp14.h src/gdevp14.c]

2007-12-10T09:45:03.624134Z Ken Sharp

Fix (jbig2dec): Missing support for decoding multiple symbols
from a symbol dictionary, when using refinement/aggregation.

Details:
Bug #688945 "jbig2dec FATAL ERROR decoding image: aggregate
coding with REFAGGNINST=2 (segment 0x03)".

Added missing support. When decoding a symbol dictionary, using
refinement/aggregation, and decoding multiple symbols, we need
to use text region decoding (single symbols use refinement
region decoding, already implemented).

This required making the text region decoding procedure available
to the symbol dictionary decoding routine, and correctly
initialising the parameters.

(jbig2_text.h) New include file. The 'Jbig2TextRegionParams'
structure and Jbig2RefCorner enum have been moved here from
jbig2_text.c, and a prototype for 'jbig2_decode_text_region'
created.

Added pointers for the adaptive arithmetic decoder tables to the
Jbig2TextRegionParams structure, as these tables must now be passed
to the decoder routine (see below) rather than initialised in it.

(jbig2_text.c) Modified the 'jbig2_decode_text_region' routine to
take the arithmetic decoder state or data stream (for Huffman
decoding) as a parameter. When being called from the symbol
dictionary decoder we must use the current decoder state; removed
the initialisation of the decoder state, this is passed as a
parameter Removed the initialisation of the adaptive arithmetic
decoder tables, these are now passed as part of the
Jbig2TextRegionParams structure.

Modified 'jbig2_parse_text_region' to create and initialise the
arithmetic decoder state (or data stream for Huffman). If
using adaptive arithmetic encoding, create and initialise the
tables.Required now that these are parameters to the text
region decoder.

(jbig2_symbol_dict.c) 'jbig2_decode_symbol_dict', when we
encounter refinement/aggregation with REFAGGNINST > 1, instead of
flagging an error create a Jbig2TextRegionParams structure (if
not already present), initialise the arithmetic decoder tables, and
call the text region decoder to create the bitmap. If we already
have a Jbig2TextRegionParams structure (because we have already
decoded a symbol this way) just use it as the argument to the
text region decoder.

[jbig2dec/jbig2_text.c src/jbig2.mak jbig2dec/jbig2_symbol_dict.c jbig2dec/jbig2_text.h]

2007-12-09T06:33:00.168945Z Alex Cherepanov

Use a smaller buffer for eexecDecode filter to avoid consumption of the data
that follow a short (and incorrect) run of 0's in PS files generated by
Adobe Acrobat from PDF files with usage restrictions. Bug 689577

DETAILS:
The buffer size of 132 has been selected from a middle of small window that
fixes the bug but doesn't cause regession in comparefiles/fonttest.pdf.
Detection of EOF after seing a run of 0's is worth to note as an alternative.

[src/seexec.c]

2007-12-08T13:57:53.015953Z Ken Sharp

Update the MSVC makefile to work with Visual Studio 2005 (nmake version 8). 
Should still be OK with MSVC 6.

[jbig2dec/msvc.mak]

2007-12-07T23:39:06.271814Z Igor Melichev

Fix (clist interpreter) : Skip idle compositors, step 3.

DETAILS :

The clist writer writes the 'create compositor' operation to all bands,
including ones that are not covered by a transparency.
It does so because this operation changes the number of color components.

When rendering a specific band, it frequently happens that a compositor
is created and then immediately destroyed. Such thing happens outside 
the transparency bbox, and within the transparency bbox if
the band has no transparent objects. When compositor is created,
it allocates a big raster buffer and cleans it. 
Due to that we observe a significant CPU time expence
when running the test case of the bug 689155.

This patch is a preparation for further improvements.
This patch includes CTM into pdf14 compositor params
(see changes to c_pdf14trans_read, c_pdf14trans_write, clist_create_compositor).
The result should be same as the old code, but the algorithm is different.
The old code wrote CTM as a separate command before cmd_opv_ext_create_compositor.
The new code does not, and in many cases compositor commads 
immediately follow each another.

The last fact changes the behavior of the compositor queue :
before this patch it consisted of 1 element maximum,
but after it the queue becomes longer (up to 10 elements
with SoftMaskGroup.pdf). A bug is fixed in the queue logic 
in gxclrast.c ln 1355.

The queue is still immediately executed
when a non-compositor command appears in the input stream.
An annihilation of neighbour idle compositors will be a next step.

Minor changes:

- added a new method adjust_ctm to gs_composite_type_procs_t.
- added type checks with composite_*_proc macros to all compositor types.
- dependencies were broken for gdevp14.c in lib.mak .

[src/lib.mak src/gsropc.c src/gdevdflt.c src/gxclpath.h src/gxcldev.h src/gsalphac.c src/gxcomp.h src/gsovrc.c src/gstrans.h src/gxclrast.c src/gdevp14.c src/gxclpath.c src/gxclimag.c src/gxclutil.c]

2007-12-05T23:39:42.529355Z Igor Melichev

Fix (clist interpreter) : Skip idle compositors, step 2.

DETAILS :

The clist writer writes the 'create compositor' operation to all bands,
including ones that are not covered by a transparency.
It does so because this operation changes the number of color components.

When rendering a specific band, it frequently happens that a compositor
is created and then immediately destroyed. Such thing happens outside 
the transparency bbox, and within the transparency bbox if
the band has no transparent objects. When compositor is created,
it allocates a big raster buffer and cleans it. 
Due to that we observe a significant CPU time expence
when running the test case of the bug 689155.

This patch is a preparation for further improvements.
The change is algorithmically equivalent.
It implements a compositor queue for a delayed applying of compositors.
Nevertheless currently the compositors are still applied immediately 
due to stubs in is_null_compositor_op, is_closing_compositor.

[src/gxcomp.h src/gxclrast.c]

2007-12-05T16:40:41.424504Z Igor Melichev

Fix (clist interpreter) : Skip idle compositors, step 1.

DETAILS :

The clist writer writes the 'create compositor' operation to all bands,
including ones that are not covered by a transparency.
It does so because this operation changes the number of color components.

When rendering a specific band, it frequently happens that a compositor
is created and then immediately destroyed. Such thing happens outside 
the transparency bbox, and within the transparency bbox if
the band has no transparent objects. When compositor is created,
it allocates a big raster buffer and cleans it. 
Due to that we observe a significant CPU time expence
when running the test case of the bug 689155.

This patch is a preparation for further improvements.
The change is algorithmically equivalent.
I simply divides read_create_compositor into 2 ones :
the first one just reads the instruction,
and the second one applies it. 
Also did a mionor code cleanup.

[src/gxclrast.c]

2007-12-05T00:08:50.583846Z Till Kamppeter

Let CUPS filters use buffered input to Ghostscript via '-_', to work around bug #689577.

[cups/pstoraster.in cups/pstopxl.in]

2007-12-03T21:31:16.528843Z Henry Stiles

Replace the "tricky" unit_frac macro with a normal function call.  The
macro produced a false positive in valgrind and seems to cause
incorrect code generation on gcc 4.1.2 with optimization but we did
not study it in detail.  The change should be equivalent to the
previous code, reviewed by Ralph Giles.

[src/gxcmap.c src/gxcmap.h src/gscsepr.c src/gscdevn.c]

2007-12-03T20:07:05.165284Z Igor Melichev

Fix (shadings) : Optimize fill_linear_color_scanline with analitic computation of the color change position.

DETAILS :

Debugged with the test case of the bug 689155.

This optimizes slightly changing gradients.
It speeds up the test case from 6 hours to 5 hours.

The old code in gx_default_fill_linear_color_scanline 
recomputes color for each pixel.
The new code checks whether neighbour pixels have same color,
and if so it finds the color change position 
with solving a linear equation, 
and fills entire constant color interval 
without computing color for each pixel.

The linear equation is solved with 64 bits arithmetics.
We would like to create a 32bits algorithm someday.
We think it is possible with rounding colors to 16 bits
and restricting a run length with 15 bits. 
Note it must not accummulate rounding errors,
so it needs to compute from the run start at each iteration.
So if the scanline is wide, first split it into smaller ones
by coordinates, then break each subscanline into runs by color changes.

[src/gdevdsha.c]

2007-11-30T22:13:49.581001Z L. Peter Deutsch

Add a tool that analyzes logs produced by gs -Z67, producing a report of
memory leaks.

[toolbin/memory.py]

2007-11-30T06:43:47.688763Z L. Peter Deutsch

Adds the base font address to the -Zm tracing output.

[src/gsfont.c]

2007-11-30T06:43:12.449891Z L. Peter Deutsch

Fixes bug: -Z89 produced slightly mangled output (-Z9 output inserted in the
middle of a line of -Z8 output).

[src/igcref.c]

2007-11-30T00:45:53.632689Z Ray Johnston

Add URW fonts to the Resource/Font directory. These will be included when
COMPILE_INITS=1. Fontmap.GS still references the disk file name so that
the disk file based fonts can still be used if they are available.

[Resource/Font/URWPalladioL-BoldItal Resource/Font/NimbusRomNo9L-Medi Resource/Font/NimbusSanL-Bold Resource/Font/Dingbats Resource/Font/URWChanceryL-MediItal Resource/Font/CenturySchL-Roma Resource/Font Resource/Font/NimbusMonL-Bold Resource/Font/URWGothicL-Demi Resource/Font/NimbusSanL-BoldItal Resource/Font/NimbusRomNo9L-MediItal Resource/Font/StandardSymL Resource/Font/URWBookmanL-DemiBold Resource/Font/NimbusRomNo9L-Regu Resource/Font/URWGothicL-Book Resource/Font/NimbusSanL-ReguCond Resource/Font/CenturySchL-Bold Resource/Font/URWBookmanL-Ligh Resource/Font/NimbusRomNo9L-ReguItal Resource/Font/URWBookmanL-DemiBoldItal Resource/Font/NimbusMonL-ReguObli Resource/Font/NimbusSanL-ReguCondItal Resource/Font/CenturySchL-Ital Resource/Font/URWPalladioL-Roma Resource/Font/CenturySchL-BoldItal Resource/Font/URWBookmanL-LighItal Resource/Font/NimbusSanL-BoldCond Resource/Font/NimbusMonL-BoldObli Resource/Font/NimbusSanL-BoldCondItal Resource/Font/URWGothicL-DemiObli Resource/Font/NimbusSanL-Regu Resource/Font/URWPalladioL-Bold Resource/Font/NimbusMonL-Regu Resource/Font/URWGothicL-BookObli Resource/Font/NimbusSanL-ReguItal Resource/Font/URWPalladioL-Ital]

2007-11-29T21:39:53.584646Z Igor Melichev

Fix (shadings) : Optimize path manipulations for shading fill (continued).

DETAILS :

Debugged with the test case of the bug 689155.

A long ago the graphics library converted the sfill clipping into a path.
It was improved with revision 8017 with introducing 
a device response for pattern_manage__shfill_doesnt_need_path.
However the revision 8017 appears incomplete : 
it missed the related change to the clist writer device
and to pdf14 device. This patch fixes it.

This patch causes a progression for the problem
known as bug 689338 "Raster depends on bands".
With banded rendering some shadings are now painted some wider,
and the raster appears equal to one from unbanded rendering.
It happens because the old code doesn't convert shfill clipping
into a path when no banding, and does convert when banding.
The new code does not convert in both cases.

[src/gdevp14.c src/gxclpath.c src/gxclrect.c]

2007-11-29T01:42:16.432740Z L. Peter Deutsch

Remove obsolete variables dstderr and estderr; repair tracing code in
igcstr.c that would cause a crash if -Z5 was used.

[src/interp.c src/gdebug.h src/igcstr.c]

2007-11-28T20:04:34.791598Z Ray Johnston

Add the 'pamcmyk32' (previously the 'pam' device) to all default builds.
This will be used for regression testing of 32-bit CMYK.

DETAILS:

The 'pam' device is retained, but not included in the default builds,
in case anyone was using this. The 'pamcmyk32' name was created as
more descriptive.

[src/bcwin32.mak src/openvms.mak src/ugcclib.mak src/macosx.mak src/watcw32.mak src/dvx-gcc.mak src/msvc32.mak src/unix-gcc.mak src/gdevpbm.c src/unixansi.mak src/macos-mcp.mak src/devs.mak src/os2.mak]

2007-11-28T19:47:48.435055Z Ralph Giles

Document the jasper build file version skew menioned in Bug 689570.

[doc/Release.htm]

2007-11-28T18:46:55.924792Z Ray Johnston

Fix #defines when USE_COMPRESSED_ENCODING == 0 so that the number of
components, separable/linear and encode/decode values are correct.
Also add checking for TIFF file larger than max_long.

[src/gdevtsep.c]

2007-11-28T18:39:59.435918Z Ray Johnston

Fix CIEBasedA problem, add DeviceGray and DeviceRGB support to this utility.

DETAILS:

This isn't used by Ghostscript, but is a useful utility for 'running' a
CIE colorspace conversion to see the intermediate and final results.

[lib/docie.ps]

2007-11-27T22:58:40.032075Z Ralph Giles

Also install gdevdsp.h in the unix so build. This header contains the
callback definitions for the "display" device. Bug 689576.

[src/unix-dll.mak]

2007-11-27T20:43:09.836338Z Ralph Giles

Update the regression code license headers with the current contact
address.

[toolbin/tests/dump_checksum.py toolbin/tests/cmpi.py toolbin/tests/gscheck_testfiles.py toolbin/tests/dump_checksum_plus.py toolbin/tests/check_source.py toolbin/tests/gssum.py toolbin/tests/gscheck_all.py toolbin/tests/dump_checksum_raw.py toolbin/tests/make_two_pdfversions toolbin/tests/check_all.py toolbin/tests/rasterdb.py toolbin/tests/gsutil.py toolbin/tests/gscheck_fuzzypdf.py toolbin/tests/revert_pdfbaseline toolbin/tests/build_revision.py toolbin/tests/compare_checksumdb.py toolbin/tests/gsconf.py toolbin/tests/revert_baseline toolbin/tests/update_baseline.py toolbin/tests/make_baselinedb.py toolbin/tests/gscheck_raster.py toolbin/tests/gsparamsets.py toolbin/tests/gstestutils.py toolbin/tests/compare_checksums.py toolbin/tests/check_dirs.py toolbin/tests/update_specific toolbin/tests/run_nightly.py toolbin/tests/gstestgs.py toolbin/tests/myoptparse.py toolbin/tests/run_regression.py toolbin/tests/get_baselines.py toolbin/tests/make_two_versions toolbin/tests/testdiff.py toolbin/tests/gscheck_pdfwrite.py toolbin/tests/make_testdb.py toolbin/tests/check_comments.py toolbin/tests/check_docrefs.py toolbin/tests/get_baseline_log.py]

2007-11-27T20:43:07.921159Z Ralph Giles

Change the regression scripts to rewrite the product as
"GPL Ghostscript".

[toolbin/tests/build_revision.py toolbin/tests/update_specific]

2007-11-27T18:11:10.542532Z Igor Melichev

Fix (graphics) : Improving the setoverprint logic.

DETAILS :

Debugged with the test case of the bug 689155.

This eliminates unnecessary calls of dx_device::procs.create_compositor.
In the test case the oprator 'show' calls gs_save and gs_restore
and the latter performs unnecessary call to gs_do_set_overprint
due to overprint is set at page start. It causes a significant CPU time expense 
while clist interpretation.

We're not sure why the old code is such,
we change it as we think correct.
Will see the regression test results.
A local test gave no differences.

[src/gsstate.c]

2007-11-23T09:23:06.243419Z Ken Sharp

Fix (pdfwrite): Fonts containing glyphs with no sbw or hsbw
instruction caused pdfwrite to crash.

Details:
Bug #689544 "Segmentation fault writing PDF file".

The job contains a number of fonts apparently converted from 
TrueType to type 1. The /.notdef glyph in every case consists
only of an endchar instruction. Techincally invalid since the 
specification says the first instruction must be either an sbw
or hsbw instruction.

This causes a crash because gs_type1_glyph_info didn't create
a path before interpreting the glyph. If we encountered a path
operation before a sbw instruction we attempted to write to the 
non-existent path.

(gxtype1.c), gs_type1_glyph_info, create a path for the type 1
interpreter to work with. Make it a bbox_accumulator so we don't
allocate memory for path segments.

(gdevpsfu.c), psf_check_outline_glyphs, if we get an invalidfont
error return from the font's 'glyph_info' procedure, don't exit
immediately. Check each glyph, and only return an error if 
there are no good glyphs.

[src/gxtype1.c src/gdevpsfu.c]

2007-11-22T02:46:59.719550Z Ralph Giles

Correct Id line and double-include protection warnings.

[src/ConvertUTF.h toolbin/tests/check_source.py src/expat.mak]

2007-11-22T01:03:46.485805Z Ralph Giles

Update the run_nightly regression script to rewrite the product
name to GPL Ghostscript instead of AFPL Ghostscript. Also, include
quotation marks in the optional part of the regex so we work when
GS_PRODUCT is set to another macro and does not include a literal
string, as it does at release time.

[toolbin/tests/run_nightly.py]

2007-11-22T00:54:03.544607Z Ralph Giles

Correct a format string error in the PDF 1.4 spot color name generation.

[src/gdevp14.c]

2007-11-22T00:54:01.468513Z Ralph Giles

Update release procedure documentation.

[doc/Release.htm]

2007-11-21T22:42:03.178745Z Ralph Giles

Bump the version number and date after the 8.61 release.

[doc/News.htm lib/gs_init.ps src/gscdef.c src/version.mak]

2007-11-21T20:07:08.596302Z Ralph Giles

Update changelogs and release date for the second 8.61 candidate.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/Changes.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 src/version.mak man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Testing.htm doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm doc/Details.htm doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 man/ps2ps.1 doc/History5.htm doc/History6.htm]

Version 8.61 (2007-11-21)

This is the second release in the Ghostscript 8.6x stable series. It contains a number of bug fixes and improvements.

The following bugs were open at the time of the last release:

226943, 430175, 465936, 493348, 535932, 578865, 614298, 626295, 686747, 686853, 686865, 687011, 687039, 687084, 687095, 687146, 687193, 687196, 687257, 687271, 687280, 687295, 687297, 687303, 687327, 687342, 687345, 687375, 687414, 687475, 687492, 687514, 687520, 687531, 687536, 687561, 687593, 687608, 687630, 687650, 687666, 687674, 687677, 687695, 687697, 687702, 687715, 687721, 687728, 687729, 687731, 687775, 687780, 687782, 687793, 687796, 687805, 687814, 687850, 687887, 687903, 687904, 687907, 687915, 687931, 687950, 687957, 687974, 687981, 687983, 688007, 688022, 688024, 688026, 688032, 688036, 688042, 688058, 688061, 688064, 688066, 688075, 688081, 688095, 688129, 688130, 688151, 688152, 688159, 688166, 688184, 688187, 688204, 688207, 688210, 688215, 688227, 688239, 688267, 688269, 688280, 688282, 688288, 688312, 688317, 688318, 688320, 688333, 688342, 688358, 688359, 688360, 688361, 688363, 688372, 688378, 688386, 688387, 688389, 688395, 688413, 688427, 688428, 688436, 688437, 688440, 688446, 688448, 688468, 688473, 688475, 688483, 688490, 688495, 688500, 688515, 688517, 688528, 688533, 688539, 688540, 688542, 688543, 688557, 688565, 688573, 688580, 688581, 688588, 688601, 688604, 688605, 688610, 688615, 688616, 688617, 688619, 688627, 688636, 688638, 688643, 688646, 688647, 688651, 688653, 688655, 688673, 688674, 688696, 688697, 688699, 688708, 688709, 688710, 688711, 688714, 688717, 688728, 688731, 688736, 688739, 688757, 688770, 688774, 688777, 688778, 688796, 688797, 688806, 688807, 688811, 688813, 688815, 688818, 688829, 688843, 688845, 688846, 688871, 688872, 688876, 688908, 688918, 688919, 688923, 688926, 688928, 688933, 688942, 688943, 688945, 688949, 688952, 688958, 688969, 688970, 688976, 688978, 688986, 688990, 688992, 688994, 688999, 689003, 689011, 689013, 689014, 689022, 689025, 689028, 689031, 689032, 689040, 689044, 689046, 689048, 689057, 689058, 689060, 689065, 689070, 689076, 689077, 689078, 689080, 689081, 689090, 689093, 689094, 689098, 689103, 689107, 689111, 689116, 689128, 689129, 689130, 689133, 689136, 689137, 689138, 689145, 689146, 689148, 689150, 689153, 689154, 689155, 689159, 689161, 689164, 689167, 689172, 689174, 689181, 689184, 689188, 689195, 689198, 689199, 689206, 689209, 689210, 689222, 689224, 689230, 689236, 689241, 689246, 689247, 689248, 689252, 689253, 689264, 689266, 689278, 689279, 689280, 689281, 689283, 689289, 689290, 689291, 689295, 689304, 689305, 689306, 689308, 689313, 689331, 689335, 689338, 689340, 689341, 689343, 689356, 689358, 689361, 689363, 689364, 689367, 689369, 689370, 689373, 689376, 689378, 689389, 689392, 689396, 689402, 689412, 689418, 689419, 689421, 689422, 689423, 689428, 689431, 689438, 689439, 689440, 689444, 689445, 689448, 689450, 689451, 689456, 689457, 689460, 689461, 689462, 689463, 689464, 689469, 689471, 689472, 689473, 689476, 689482, 689484, 689487, 689488, 689489, 689490, 689492, 689498, 689499, 689500, 689502, 689506, 689507, 689509, 689510, 689512, 689514, 689515, 689516, 689518, 689521, 689522, 689525, 689528, 689532, 689533, 689534, 689535, 689536, 689538, 689542, 689543, 689544, 689546, 689547, 689549, 689550, 689552, 689554, 689557, 689558, 689559, 689560, 689561, 689563, 689566, 689567, 689568, 689569.

Incompatible changes

The default device on unix-oriented builds was temporarily switched to the bbox device in the 8.60 release. In the 8.61 release, the default was changed again to the x11alpha device, if X11 support is available, and otherwise falls back to the bbox device.

Changelog

2007-11-21T19:44:40.574652Z Ralph Giles

Revert the change to using an environment variable for the MSVC LIBPATH. 

Details:

This wasn't effective in addressing the problem and could cause 
additional trouble if the environment isn't configured. The changes
in r8394 should properly address the issue of quote interpretation
with MSVC6.

[src/msvc32.mak]

2007-11-21T06:10:53.144641Z Henry Stiles

Check that a device halftone exists before writing it.  Fixes
segmentation fault in xps.  No differences expected.

[src/gdevp14.c]

2007-11-21T05:57:23.672501Z Ray Johnston

Fix compiler flag conflict for non-debug build (seen when switching
PCL6 build to default to non-debug default). Changes /ZI to /Zi.

[src/msvccmd.mak]

2007-11-20T18:36:58.009554Z Ray Johnston

Fix broken MSVC 6 build issue caused by change in src/msvccmd.mak that puts
a LIBPATH into the link command line. MSVC linker can't handle spaces in the
LIBPATH even if within " ". We use an environment variable set by Microsoft
MSVC 6 'vcvars32.bat' instead. This can be manually set if needed.

[src/msvc32.mak]

2007-11-20T11:42:22.623309Z Ken Sharp

Batch file to create MSVC solution and projects.

Usage:
msvcxml gs obj\ld.tr > ghostscript.sln

This is the first attempt, and very poor.

[toolbin/msvcxml.bat]

2007-11-19T23:57:46.396323Z Ralph Giles

Change the product name for the release.

[src/gscdef.c]

2007-11-19T23:56:28.975783Z Ralph Giles

Update changelogs for release.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

2007-11-19T20:36:07.538187Z Igor Melichev

Fix (transparency) : Wrong background color of a soft mask group.

DETAILS :

Bug 689531 "Regression: PDF file has undesired extra gray object.".

The old code used the 0th component of the background color
instead its gray equivalent.  The bug was introduced when 
working on bug 687176.

[src/gdevp14.c]

2007-11-19T20:24:07.302766Z Ralph Giles

Update documentation timestamps for 8.61.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Testing.htm doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2007-11-19T20:23:39.904096Z Ralph Giles

Remove the verification checks for PVERSION and JVERSION, which we no 
longer use.

[toolbin/pre.tcl]

2007-11-19T20:15:45.795513Z Ralph Giles

Add new files to the documentation.

[doc/Develop.htm doc/Psfiles.htm]

2007-11-19T20:15:43.672566Z Ralph Giles

Update release notes and date for 8.61.

[doc/News.htm src/version.mak]

2007-11-18T22:50:36.855233Z Alex Cherepanov

Normalize weigts in the Mitchell filter and use proper rounding to ensure
that the constant value is not changed by the filter.
Bug 689556, customer 581.

[src/siscale.c]

2007-11-18T16:48:41.008511Z Igor Melichev

Fix (clist interpreter) : Transparency caused a wrong color depth.

DETAILS :

Bug 689520 Regression: 1bpp and grayscale output broken.

The clist interpreter clist_playback_band maintains 2 devices :
the clist reader and target. The clist reader device stores
private interpreter's data. However using a device structure
for this purpose is pretty confusing, because the target 
device may have same device fields with different values.
Particularly while processing a transparency, the target device
chage to a transparency buffer device, 
which may have a different number of color components.

The problem happens due to the clist interpreter used
a wrong device to obtain the number of color components.
This patch changes the code with taking color components 
from the target device. 

Now we don't try to analyze all other access to the clist device -
it should be a subject of a separate job. 
Therefore the code may need further improvements.
The right way would be to define a special structure for the clist interpreter, 
and to drop the clist reader device at all.

[src/gxclrast.c]

2007-11-18T09:30:55.737640Z Russell Lang

Remove incorrect and unnecessary gtk+ separation code. Fixes bug 689541.

[src/dxmain.c]

2007-11-18T06:07:20.783700Z Igor Melichev

Fix (clist) : Improving the debug printing.

DETAILS :

This patch only inserts some debug trace printing about the pdf14 compositor.
The old code is confusing due to mapping an obsolete instruction to "set_color[*]".

[src/gxclpath.h]

2007-11-18T05:30:55.503323Z Igor Melichev

Fix (clist) : Improving the debug printing.

DETAILS :

This patch only inserts some debug trace printing about the pdf14 compositor.
The old code generates a confusing trace due to missing an important information.

[src/gstrans.c src/gdevp14.c]

2007-11-16T21:39:22.306411Z Ray Johnston

Fix dependency problems that caused obj/gs_init.ps to be missed. Also fix a
typo that caused CMap files to be missing.

DETAILS:

This method of putting the gs_init.ps dependency down in lib.mak require
us to get gs_init.ps. This hack was discussed with Ralph and is an
alternative to adding a dependency to all of the top level makefiles.
The dummy gs_init.ps is only made when we are NOT including the PS
interpreter (PSI_INCLUDED) since we need the real one for the language
switch build. Note that the dummy file doesn't get added to the %rom%
file system since PS_ROMFS_ARGS is empty if int.mak is not included.

[src/lib.mak src/int.mak]

2007-11-16T21:14:31.380613Z Ralph Giles

Correct typos and spelling errors in the change log. Bug 688940.

[doc/History8.htm]

2007-11-16T08:11:05.046465Z Igor Melichev

Fix (clist) : Providing clist instruction ids and offsets to debug trace (continued 2).

DETAILS :

The last patch (rev 8365) appears incorrect and causes crashes with halftoning devices.

The problem happens due to gx_device_clist_reader::offset_map 
has been initialized too early in clist_reader_init. 
At that moment the device is still a clist writer, 
but the field offset_map belongs to clist reader. 
Due to gx_device_clist_s is a union, the field overlaps band_range_list.head,
and the letter was prematurely reset. It caused some commands were not written
to clist file while the page closes. With the test case (pbmraw -r300 012-01.ps)
it missed cmd_opv_ext_put_halftone and did not miss cmd_opv_ext_put_drawing_color
with color index type == ht_binary. It caused the crash in gx_dc_ht_binary_readdue to 
pis->dev_ht was not set. (cmd_opv_ext_put_halftone does set, but it was missed).

The log message of the revision 8365 reads :
"This change is algorithmically equivalent for release build."
This statement is false due to the premature initialization of 
gx_device_clist_reader::offset_map.
This patch fixes that with removing its initialization from 
clist_reader_init. A subsequent call to clist_render_init initializes it.

The last patch was made buggy due to the function name 
clist_reader_init does not properly reflects its finction.
This patch fixes the naming.

Also provided more stability in gxht.c with a check for NULL pointer.

[src/gxclread.c src/gxht.c]

2007-11-16T02:10:56.107493Z Ralph Giles

Update the makefile for current pkgconfig macros.

[ijs/Makefile.am]

2007-11-16T01:52:09.559298Z Ralph Giles

Don't generate build files for the ijs package when building. Since this 
is distinct from 'make dist' the results are not optimal Bug 689425.

[doc/Release.htm]

2007-11-15T07:22:43.143761Z Igor Melichev

Fix (clist) : Providing clist instruction ids and offsets to debug trace (continued).

DETAILS :

The last patch appears incorrect for the debug build 
and causes crashes sometimes. Not sure why local testing didn't detect that.

This change is algorithmically equivalent for release build.
In the debug build it fixes problems of the last patch.

1. Offset map could be prematurely released by the garbager
(It could cause a crash. Not sure why the local test didn't detect it).
A new pointer gx_device_clist_reader::offset_map prevents that.
Added it to the garbager descriptor and provided its initialization.

2. buffer_segment_index can fail with returning a negative index.
Checked that and propagated error codes.

4. Besides top_up_cbuf, the buffer topping up also happens 
with calling memmove when reading bitmap data. 
Added calls to top_up_offset_map for accounting that.

5. See comment in top_up_offset_map about the improved invariant.

6. The prototupe of top_up_cbuf is changed with passing the error code.
Due to that the variable 'cbp' is droped the 'register' modifier.
We believe it won't cause a visible slowdown because
modern compilers are smart enough.

7. Do not maintain offset_map when -ZL is not specified.
It saves some CPU time with debug build.

[src/gxclist.c src/gxcldev.h src/gxclist.h src/gxp1fill.c src/gxclrast.c src/gxclread.c src/gxclpage.c src/gxclutil.c]

2007-11-14T23:03:22.440437Z Ralph Giles

Remove an obsolete include.

[src/gendev.c]

2007-11-14T22:06:13.972530Z Ray Johnston

Refactor the gs int.mak and lib,mak to simplify building COMPILE_INITS=1 without PS (PCL
only build). Make sure gs/src/ugcclib.mak does conditional assignment of COMPILE_INITS

[src/lib.mak src/ugcclib.mak src/int.mak]

2007-11-14T22:04:53.375824Z Ray Johnston

Fix number of macro arguments that showed an error when FPU_TYPE=-1 (no FPU)

[src/gsciemap.c]

2007-11-14T18:37:45.596510Z Igor Melichev

Fix (clist) : Providing clist instruction ids and offsets to debug trace.

DETAILS :

This change is algorithmically equivalent for release build.
In the debug build it only adds a new debug printing.

Let clist segment is consecutive instuctions buffered for same band.

1. gx_device_clist_writer::ins_count counts clist segments.

2. cmd_prefix_s::id is the number of clist segment that it belongs to.

3. stream_band_read_state_s::offset_map stores a table for mapping
clist segments' buffer offsets to clist file offsets.

4. s_band_read_init_offset_map, s_band_read_dnit_offset_map,  
clist_file_offset, top_up_offset_map maintain the table.

5. Inserted a debug printing into gxclutil.c, gxclrast.c .

[src/gxclist.c src/gxcldev.h src/gxclist.h src/gxclrast.c src/gxclread.c src/gxclutil.c]

2007-11-14T18:09:02.242685Z Igor Melichev

Fix (clist) : A preparation for providing clist instruction ids and offsets to debug trace.

DETAILS :

We would like this change to be algorithmically equivalent,
but the proof is too complex. Therefore we commit it separately
in order to check for raster differences.

1. Inserted a new field into cmd_prefix_s.
For now this field is never used, but it changes memory allocation.
Due to that the bufferring in the clist writer goes slightly different.
Particularly it may cause new effects while restarting failed instructions.

2. Early return from top_up_cbuf when the stream is over.
The new code does not top up the last portion of the data stream.
It shouldn't be important for the reader, but we can't proove for sure.
This change is necessary because we want to add more fields to gx_clist_state_s,
and the new fields would be invalid after s_close resets stream::state.
See the next patch for details.

[src/gxclist.h src/gxclrast.c]

2007-11-14T02:22:53.263144Z Ralph Giles

Add support for passing EXPAT_CFLAGS from the top-level makefile.
Passing -DHAVE_MEMMOVE is required in the unix build.

[src/expat.mak]

2007-11-14T02:06:05.012311Z Ralph Giles

Remove spurious executable bits.

[expat/MANIFEST expat/conftools/expat.m4 expat/tests/benchmark/benchmark.c expat/lib/internal.h expat/COPYING expat/Changes expat/lib/utf8tab.h expat/tests/runtestspp.cpp expat/tests/runtests.c expat/lib/expatw_static.dsp expat/lib/libexpat.def expat/amiga/include/proto/expat.h expat/tests/README.txt expat/xmlwf/xmlfile.c expat/xmlwf/xmlfile.h expat/xmlwf/ct.c expat/lib/Makefile.MPW expat/xmlwf/codepage.c expat/vms/descrip.mms expat/xmlwf/codepage.h expat/bcb5/elements.bpf expat/lib/amigaconfig.h expat/amiga/expat_lib.c expat/bcb5/elements.bpr expat/lib/expat.h expat/win32/README.txt expat/conftools/get-version.sh expat/doc/valid-xhtml10.png expat/examples/outline.dsp expat/xmlwf/readfilemap.c expat/bcb5/outline.mak expat/lib/xmlrole.c expat/amiga/launch.c expat/bcb5/expat_static.mak expat/lib/xmlrole.h expat/lib/winconfig.h expat/examples/elements.dsp expat/win32/expat.iss expat/win32/MANIFEST.txt expat/amiga/expat.xml expat/bcb5/outline.bpf expat/expat_config.h.in expat/lib/libexpatw.def expat/lib/expatw.dsp expat/bcb5/expat.mak expat/lib/xmltok.c expat/vms/README.vms expat/tests/benchmark/README.txt expat/bcb5/expat_static.bpf expat/lib/xmltok.h expat/tests/xmltest.sh expat/lib/latin1tab.h expat/bcb5/outline.bpr expat/tests/minicheck.c expat/xmlwf/xmlwf.dsp expat/conftools/PrintPath expat/tests/minicheck.h expat/Makefile.in expat/lib/expat_static.dsp expat/bcb5/libexpat_mtd.def expat/bcb5/expat_static.bpr expat/lib/xmltok_impl.c expat/bcb5/expatw.mak expat/amiga/include/interfaces/expat.h expat/lib/xmltok_impl.h expat/xmlwf/filemap.h expat/bcb5/expatw_static.mak expat/vms/expat_config.h expat/bcb5/expat.bpf expat/xmlwf/xmlwin32url.cxx expat/lib/xmltok_ns.c expat/xmlwf/xmltchar.h expat/doc/reference.html expat/tests/benchmark/benchmark.dsp expat/bcb5/expat.bpr expat/bcb5/xmlwf.mak expat/bcb5/setup.bat expat/lib/xmlparse.c expat/tests/benchmark/benchmark.dsw expat/conftools/install-sh expat/configure.in expat/conftools/libtool.m4 expat/bcb5/expatw.bpf expat/amiga/Makefile expat/bcb5/expatw_static.bpf expat/bcb5/expatw.bpr expat/bcb5/expatw_static.bpr expat/bcb5/xmlwf.bpf expat/lib/expat_external.h expat/configure expat/lib/macconfig.h expat/conftools/ac_c_bigendian_cross.m4 expat/lib/ascii.h expat/amiga/expat_vectors.c expat/conftools/mkinstalldirs expat/bcb5/README.txt expat/amiga/README.txt expat/bcb5/xmlwf.bpr expat/xmlwf/unixfilemap.c expat/doc/xmlwf.sgml expat/bcb5/all_projects.bpg expat/xmlwf/xmlurl.h expat/doc/expat.png expat/amiga/include/inline4/expat.h expat/examples/elements.c expat/expat.dsw expat/amiga/stdlib.c expat/amiga/include/libraries/expat.h expat/lib/iasciitab.h expat/xmlwf/xmlmime.c expat/tests/chardata.c expat/xmlwf/xmlmime.h expat/doc/style.css expat/README expat/tests/chardata.h expat/conftools/config.guess expat/doc/xmlwf.1 expat/conftools/ltmain.sh expat/conftools/config.sub expat/lib/nametab.h expat/bcb5/libexpatw_mtd.def expat/lib/asciitab.h expat/xmlwf/xmlwf.c expat/lib/expat.dsp expat/examples/outline.c expat/xmlwf/win32filemap.c expat/bcb5/elements.mak expat/bcb5/makefile.mak]

2007-11-13T18:57:18.728921Z Igor Melichev

Fix (make) : Could not build for x64 platform with Developer Studio 2005. 

DETAILS :

1. The old code uses the 32 bits compiler for compiling build utilities 
(genarchg, echogs), and then tries to link them with x64 libraries.

2. Developer Studio 2005 doesn't support -ZI 
(debug database for edit end continue) for the x64 platform.

[src/msvccmd.mak]

2007-11-13T10:01:55.069333Z Ken Sharp

Fix (pdfwrite): type 3 fonts with exceedingly small BoundingBox
entries were clamped to 0 or 1.

Details:
Bug #689537 "FontBBox wrong in pdf generated by ps2pdf (breaks
acrobat 8)".

The type 3 font has a FontBBox of [0 0 0.3 0.3]. Because
pdfwrite uses integers to record the font bounding box, this was 
being clampled to [0 0 1 1]. This should not cause a prolem, but
for unknown reasons causes Acrobat 8 to render *very* slowly.

(gdevpdtf.h), 'struct /*type 3*/', alter the FontBBox member from
a gs_int_rect to a gs_rect to preserve floating point box values.

(gdevpdtt.c), pdf_make_font3_resource, copy the font bbox values
instead of floor'ing the lower and ceil'ing the upper values.

(gdevpdfu.c), create a new function 'pdf_write_font_bbox_float'
to write the bbox as floats instead of ints.

(gdevpdfx.h) prototype 'pdf_write_font_bbox_float'

(gdevpdtw.c), pdf_finish_write_contents_type3, use the new
routine to write out a floating point bounding box.

[src/gdevpdfx.h src/gdevpdtt.c src/gdevpdfu.c src/gdevpdtw.c src/gdevpdtf.h]

2007-11-12T08:59:35.891834Z Ken Sharp

Fix (pdfwrite): named objects, created via a pdfmark such as /BP,
could not have their content modified after the object was completed.

DETAILS:
Bug #689104 "Overwriting transformation /Matrix in XObject previously
created with /BP & /EP pdfmarks".

Some pdfmarks, such as /BP create named objects. These can accumulate
information until a matching pdfmark (/EP in this case) completes the
object. When complete, objects were written to the final destination
PDF file. This made it impossible to later modify the object.

(gdevpfm.c) pdfmark_bind_named_object, change the call to
pdf_substitute_resource to defer writing the object to the
destination file, if the object is named. This means the object is still
available for modification until the end of the job. NB if the object
is not named, we still write it immediately, as there is no mechanism
for modifying an unnamed object, nor do we currently have a mechanism
for maintaining a record of unnamed objects.

[src/gdevpdfm.c]

2007-11-10T17:20:49.620638Z Alex Cherepanov

Pre-scan the stream for '{' during the stream length check to avoid reading
to the end of the stream and closing it. Bug 689551, customer 661.

[lib/pdf_base.ps]

2007-11-09T21:18:04.579128Z Ralph Giles

Remove the JVERSION makefile variable.

We only support the current version 6 library, and it seems
unlikely to revise in the the near future. We also include
our own copy of the source now, so it is less important to
support a variety of third party library versions.

[src/openvms.mak src/macosx.mak src/watcw32.mak src/dvx-gcc.mak src/unixansi.mak src/msvclib.mak src/os2.mak src/openvms.mmk src/bcwin32.mak src/ugcclib.mak src/gs.mak src/Makefile.in doc/Make.htm src/msvc32.mak src/unix-gcc.mak src/macos-mcp.mak src/watclib.mak src/jpeg.mak]

2007-11-09T21:15:56.512922Z Ralph Giles

Remove the PNGVERSION makefile variable.
    
We no longer support building older versions of the libpng source,
and now include our own version, so there is no reason to maintain
this.

[src/openvms.mak src/macosx.mak src/watcw32.mak src/dvx-gcc.mak src/unixansi.mak src/msvclib.mak src/os2.mak src/openvms.mmk src/bcwin32.mak src/ugcclib.mak src/gs.mak src/libpng.mak doc/Make.htm src/msvc32.mak src/unix-gcc.mak src/macos-mcp.mak src/all-arch.mak src/watclib.mak]

2007-11-09T21:00:48.139238Z Ralph Giles

Update the top level makefiles with the current libpng version number.

[src/bcwin32.mak src/openvms.mak src/ugcclib.mak src/macosx.mak src/watcw32.mak src/dvx-gcc.mak src/msvc32.mak src/unix-gcc.mak src/unixansi.mak src/macos-mcp.mak src/msvclib.mak src/all-arch.mak src/openvms.mmk src/os2.mak src/watclib.mak]

2007-11-09T20:58:19.833269Z Ralph Giles

Use PNGSRCDIR and PNGVERSION instead of PSRCDIR and PVERSION in
the top level makefiles.

[src/openvms.mak src/macosx.mak src/watcw32.mak src/dvx-gcc.mak src/unixansi.mak src/msvclib.mak src/os2.mak src/openvms.mmk src/bcwin32.mak src/ugcclib.mak src/gs.mak src/libpng.mak src/Makefile.in doc/Make.htm src/msvc32.mak src/unix-gcc.mak src/macos-mcp.mak src/all-arch.mak src/watclib.mak]

2007-11-09T19:54:57.891517Z Ralph Giles

Minor cleanup of the expat makefile.

[src/expat.mak]

2007-11-09T01:14:15.828665Z Ralph Giles

Change the jbig2dec license from GPLv2 to GPLv2 or later.

[jbig2dec/LICENSE]

2007-11-08T07:57:21.838362Z Suzuki Toshiya

Fix: Ignore problematic post table in format 2.0 with ISOLatin1Encoding glyph names.

DETAILS:
Some TrueType fonts converted by "Windows Type 1 Installer" have
problematic post table format 2.0 including MacGlyphEncoding
entries which should be omitted. Such extra entries in the
beginning of glyphName array make /Encoding broken. By checking
if glyph name in post table is predefined one in MacGlyphEncoding,
such problematic post table can be detected. By ignoring such
problematic post table, bug 689495 is fixed.

However, some TrueType fonts designed for Microsoft redefines
MacGlyphEncoding glyph name out of predefined range. To permit
such font, the post table in format 2.0 is checked by
ISOLatin1Encoding which is the cross section of MacGlyphEncoding
and WinAnsiEncoding. ISOLatin1Encoding is enought to fix the
bug 689495.

[lib/gs_ttf.ps]

2007-11-07T07:13:45.310142Z Ralph Giles

Preliminary makefile for the expat third party library.

Can be used to link to the system expat with SHARE_EXPAT=1,
but compiling the source doesn't work on linux in this revision
because of missing configuration defines.

[src/gs.mak src/expat.mak]

2007-11-07T05:04:06.063702Z Ralph Giles

Copy the expat-2.0.1 tag source into the gs tree.

This 3rd party library is needed for XPS and eventually SVG support.

[expat]

2007-11-07T04:19:13.410191Z Alex Cherepanov

Add a skeleton implementation of the text extraction device.
It doesn't do anything useful yet, only prints "Hello world" once per page.

[src/gdevtxtw.c src/bcwin32.mak src/openvms.mak src/macosx.mak src/watcw32.mak src/Makefile.in src/msvc32.mak src/unix-gcc.mak src/unixansi.mak src/macos-mcp.mak src/devs.mak src/os2.mak]

2007-11-02T19:09:03.093400Z Marcos H. Woehrmann

Fix for Bug 689316.

On some systems XInitImage() appears to have
problems with images that are one pixel in height, so
if XInitImage() returns an error call XPutImage() instead.

[src/gdevx.c]

2007-11-02T18:16:45.038692Z Ralph Giles

Document the interaction between a the vector device beginpage method
and gdev_vector_stream() more clearly.

[src/gdevvec.h]

2007-11-01T20:49:28.224038Z Ray Johnston

Make sure that errors are propogated to caller in the WTS device (such
as VMerror). Bug 689511 for customer 951.

DETAILS:

This doesn't really fix the underlying problem seen by the (embedded)
customer where the clist rendering uses a large amount of RAM.

[src/gdevwts.c]

2007-11-01T17:22:45.182105Z Igor Melichev

PS interpreter : Trace the executed operators' names (continued).

DETAILS :

Fix an inaccurate coding of the last patch.

[src/iinit.c]

2007-11-01T16:20:01.816428Z Igor Melichev

PS interpreter : Trace the executed operators' names.

DETAILS :

This change is syntactically equivalent for a default build.
For obtaining the new functionality Ghostscript must be compiled
with a new predefined macro DEBUG_TRACE_PS_OPERATORS.
The new debug switch '!' prints names of operators executed while the interpretation.
Note : Inline operators (which are expanded inside interp.c) are not printed.

[src/iinit.c doc/Use.htm src/int.mak src/iinit.h src/interp.c]

2007-11-01T15:56:22.262417Z Alex Cherepanov

Move a 32K array from the stack to the heap to save stack space.

DETAILS:
Ghostscript is designed to run with 64K stack space for compatibility with
embedded environments. Unlike other MS systems, Windows NT enforces stack
space limit claimed by the application. MSVC 6 run-time uses about 8K
internally and remaining 56K stack was insufficient.

[src/gdevpdfi.c]

2007-10-31T17:01:02.758539Z Ralph Giles

Rewrite gs_getdefaultdevice to avoid allocating memory.

The new version also skips tabs as whitespace and is more robust.

[src/gsdevice.c]

2007-10-31T17:00:59.582623Z Ralph Giles

Add a new GS_DEV_DEFAULT makefile variable for passing a preferred list
of default devices, in order of priority. These are passed through to
the C code, and searched for in gs_getdefaultdevice().

[src/gs.mak src/Makefile.in src/gscdefs.h src/gsdevice.c src/gscdef.c]

2007-10-31T17:00:55.551499Z Ralph Giles

Add Postcript bindings to gs_getdefaultdevice() and use them to set the
default device in the interpreter. Bug 689273.

[doc/Language.htm src/zdevice.c lib/gs_init.ps]

2007-10-31T17:00:51.435508Z Ralph Giles

Add a gs_getdefaultdevice() call and use it when printing the help
message. It just returns the first device as before. Bug 689273.

[src/gsdevice.h src/imainarg.c src/gsdevice.c]

2007-10-30T23:45:46.184301Z Ralph Giles

Add missing dependencies to the contrib device build.

[contrib/contrib.mak]

2007-10-30T19:26:01.651347Z Igor Melichev

Fix (banding) : Improving the debug trace about compositors (continued).

DETAILS :

This change is algorithmically equivalent for release build.
In the debug build it only improves debug printing
with distinguishing gs_ and gx_ operations.

[src/gstrans.c]

2007-10-30T17:47:49.373667Z Igor Melichev

Fix (banding) : Improving the debug trace about compositors.

DETAILS :

This change is algorithmically equivalent for release build.
In the debug build it only adds more debug printing.

1. Added a debug printing for alpha, overprint and rop compositors
when writing/reading from/to clist.

2. (gxclrast.c) When printing a matrix with the 'L' switch,
use global page coordinates as rectangle operations do.
It allows to map reading operatrions to corresponding writeing operations.

[src/gsropc.c doc/Use.htm src/gsalphac.c src/gsovrc.c src/gxclrast.c]

2007-10-30T00:58:44.912591Z Ralph Giles

Add a cast to prevent a warning.

[src/zfjpx.c]

2007-10-28T23:33:59.326612Z Alex Cherepanov

Move "true .setaccuratecurves" to the PDF graphic state initialization
where it belongs. This fix enables accurate curve rendering by GSview
doesn't use some parts of Ghostscript startup code. Bug 688434.

[lib/pdf_main.ps lib/pdf_ops.ps]

2007-10-28T18:22:29.779063Z Ralph Giles

Correct a typo.

[doc/Use.htm]

2007-10-28T17:17:47.899537Z Alex Cherepanov

Change pdf_base.ps::.pdfrun and pdf_sec.ps::.decpdfrun to ensure
"PDFScanRules" == "true" while scanning the PDF, and if necessary revert
it back to "null" before returning. Thanks to SaGS for the patch. Bug 688598.

DETAILS:
The bug is triggered by the construct "//DeviceGray" found in  the sample PDF.
The following command fails with the same error as GSView, and for the
same reason:

    pdfopt.bat media_365163.pdf output.pdf

When Ghostscript interprets a PDF directly, most of the job is done by
LIB\pdf_main.ps::dopdfpages which sets "PDFScanRules" correctly. However,
the initial part of scanning the PDF (trailer dict, ...), and the rebuild
logic scan the PDF with wrong "PDFScanRules". Also GS's own various tools
and GSView don't set/ reset it as needed.

Implementation details:

(A) ".pdfrun" and ".decpdfrun" dinamically construct procedures that do the
real work and immediately execute them. The patch changes  these procedures
to include setting/ restoring "PDFScanRules". If "PDFScanRules" == "true"
already, then "setuserparams" is not called at all, so normally
(when ".[dec]pdfrun" executed during "dopdfpages") there's practically no
impact on performance.

There are also "token" calls outside these 2 procedures, but these calls are
for scanning the xref and "# # obj" lines, which don't contain PDF name
objects.

(B) ".getuserparam" GS-specific operator changed to recognize scanner options
too ("PDFScanRules" and "PDFScanInvNum"). This is needed by ".[dec]pdfrun"
for restoring "PDFScanRules"; also used for an optimization (to omit calling
"setuserparams" when not actually needed).

Note:
    For "Process[DSC]Comment" it returns "true" if a procedure 
    is set, and not the actual procedure. To retrive the 
    procedures (or null if none set), use "currentuserparams". 

(C) ".currentuserparams" is NOT modified, so it does not return scanner
options. If it did, these ended up being put into "userparams" and be
affected by "save"/ "restore" (see the  redefinition of "restore" in
gs_lev2.ps).

[src/itoken.h lib/pdf_base.ps lib/pdf_sec.ps src/zusparam.c src/ztoken.c]

2007-10-28T14:19:46.108672Z Alex Cherepanov

Stop reading the xref+trailer at the closing ">>" because PDF 1.7 Reference
made "startxref" optional in some cases. Thanks to SaGS for thr patch.
Bug 688283.

DETAILS:
The PDF 1.7 Reference, section F.2.3 "First-Page Cross-Reference 
Table and Trailer (Part 3)", 2nd paragraph on page 1031 states:

   "The first-page trailer may optionally end with startxref, an 
    integer, and %%EOF, just as in an ordinary trailer. This 
    information is ignored."

(note the word "optionally"), so in such a case a PDF interpreter 
cannot rely on anything particular (like "startxref"/ "startref"/ 
"xref") to follow the trailer dictionary. Now consider a linearized 
PDF being incrementally updated, and you get that in the general 
case a "previous trailer" may lack the "startxref". Apparently, 
Acrobat does a similar thing when creating hybrid-ref PDFs.

[lib/pdf_main.ps lib/pdf_rbld.ps]

2007-10-27T19:55:00.858126Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 9).

DETAILS :

Bug 689526 "Regression: performance issues with r8118".

This patch clips triangles an trapezoids with band bbox
during the clist playback. The old code spends much time 
for rasterizes parts that fall outside the band,
espcially if the band height is small.

Also fixed an obsolete comment.

[src/gxclrast.c]

2007-10-27T18:55:14.195971Z Alex Cherepanov

Extract and process default PDF file from the PDF collection when
it is defined. Otherwise process the container PDF file.

DETAILS:
The procedure pdf_collection_files can be extended to select other
PDF files from the collection and extract them for processing.

[lib/pdf_main.ps lib/pdf2dsc.ps]

2007-10-26T07:41:30.826491Z Ken Sharp

Fix (pdfwrite): Type 1 CharStrings could be converted to invalid 
type 2 CharStrings if the glyph program used implicit start points 
for subpaths.

DETAILS:
Bug #689055 "pdfwrite creates a bad Type1C font"

If a type 1 CharString used an implicit point, either the initial point 
(0,0) or the point resulting from a closepath, then the type 2 output 
code duplicated this. Unfortunately this is illegal in type 2 CharStrings
where each subpath must begin with one of the 'move' instructions.

(gdevpsfx.c) psf_convert_type1_to_type2, create a new boolean variable
'need_moveto' initialised to true. When we encounter a move operation,
set it to false. When we encounter a closepath, set it back to true.
Thus this variable is always true at the beginning of a subpath, and 
becomes false as soon as a move instruction is encountered.

While converting type 1 CharStrings, whenever the current instruction is 
a line drawing operation, if 'need_moveto' create a move instruction, 
taking account of any pending glyph widths.


This is only performed on the second (conversion) pass through the type 1 
CharSrtring as we don't need to worry about this during the first (hint 
collection) pass.

[src/gdevpsfx.c]

2007-10-26T01:49:56.180182Z Ralph Giles

Merge makeset.tcl into makehist.tcl.

[toolbin/makehist.tcl toolbin/makeset.tcl]

2007-10-26T01:49:54.293117Z Ralph Giles

Remove obsolete release and diff scripts.

[toolbin/3way.tcl toolbin/makefonts.tcl toolbin/maketars.tcl toolbin/makemaster.tcl toolbin/makeset.tcl toolbin/makewin.tcl]

2007-10-26T01:08:04.549848Z Ralph Giles

Document how to use -dTTYPAUSE with -dSAFER. Bug 687988.

[doc/Use.htm]

2007-10-25T22:14:22.288695Z Ralph Giles

Correct some gcc warnings.

[jbig2dec/config.h jbig2dec/jbig2_text.c jbig2dec/jbig2_image.h jbig2dec/jbig2_symbol_dict.c jbig2dec/jbig2_generic.c jbig2dec/jbig2_page.c jbig2dec/jbig2_refinement.c]

2007-10-25T00:30:18.383197Z Ralph Giles

Include an example of how to create non-ASCII font names in the cidfmap.
Bug 688203.

[doc/Use.htm]

2007-10-24T23:32:20.291355Z Ralph Giles

Append the CUPS font directory to the search path. Bug 689334.

[src/configure.ac]

2007-10-24T22:46:28.083133Z Ralph Giles

Add an XCFLAGS macro to the MSVC build to match the variable of the same
name in the unix builds. This is intended mainly for adding preprocessor
defines at make time. Bug 689530.

[src/msvc32.mak]

2007-10-24T22:46:25.428278Z Ralph Giles

Only add XLDFLAGS to LDFLAGS temporarily when checking for the
additional X libraries. Bug 689411.

[src/configure.ac]

2007-10-24T18:39:55.448984Z Ralph Giles

Use the proper build machinery to link to cups.

DETAILS:

Previously, the configure script just appended the output of cups-config
to CFLAGS and LIBS which could confuse other parts of the build. The
LIBS setting was actually ignored by cups.mak which hard coded liking
to cups and cupsimage through the genconf -lib option, although it
depended on it for the search patch if cups was in a non-standard
location.

Instead, we parse the output of cups-config to separate the dependent
libraries and additional search paths if any, and pass those through
to genconf in the intended way. This destroys the order of the link
line, but GNU ld, at least, applies all -L paths to all -l libraries,
so that should not distrurb the build. We pass any extra include paths
in a special variable and use it directly when compiling gdevcups.c to
avoid confusing the search path for other components.

Configure also used to ignore cups-config if it found cups/raster.h in
the current search path. We now prefer cups-config.

[src/Makefile.in src/configure.ac cups/cups.mak]

2007-10-24T18:39:51.211490Z Ralph Giles

Abstract the autoconf build's link line flattening for generic use.

DETAILS:

The Ghostscript build system expects a list of bare library names
for specifying library dependencies through the .dev files to
genconf. The configure script had some code to decompose the usual
unix-style "-lX11 -lXt" link flags returned by AC_PATH_XTRA.

As we've added more optional external libraries to the autoconf
build, this has become a general need, so the code is now abstracted
into an autoconf macro for use elsewhere in the configure script.

[src/configure.ac]

2007-10-24T07:31:09.815969Z Ken Sharp

Fix (pdfwrite) : An integer arithmetic overflow while converting Type 1 CharStrings into Type 2.

DETAILS :

Bug #689106 "Wrong charpath direction in PDF"
Patch from Rolf Becker with minor improvements.

A processing of big integers was implemented in gstype1.c
while rendering a glyph, but it was not implemented
in pdfwrite while converting a Type 1 font into Type 2.
It caused an incorrect glyph outlines embedded into PDF.
This patch factors out the old processing as a new
function gs_type1_check_float and applies it in gdevpsfx.c .
The function prototype is added to gxtype1.h as it needs to be public.

The patch also improves comments in code
because now we understand better what happens in there.
For more details see comments in code.

The change to gstype1.c is algorithmically equivalent
except inserting a new check for overflow in float2fixed.
The new check may fail when the old code
renders an incorrect outline.
We have no practical cases that demonstrate it.

[src/gstype1.c src/gdevpsfx.c src/gxtype1.h]

2007-10-23T03:48:59.052392Z Alex Cherepanov

Handle yet another type of broken PDF generated by Adobe Acrobat 8.1
that lacks startxref operator. Bug 689413, customer 531.

[lib/pdf_main.ps]

2007-10-21T20:49:29.646397Z Alex Cherepanov

Process duplicate entries in PDF 1.5 context stream the same way as
the entries from regular streams: the first entry found (i.e. the last
in the xref chain) takes efferct. Keep rebuilding logic intact, where
the last entry wins. Bug 689513, customer 700.

[lib/pdf_main.ps lib/pdf_rbld.ps]

2007-10-20T23:14:30.016619Z Alex Cherepanov

Check for unbalanced q operators in the pattern stream and add Q as needed.
Bug 689523, customer 870.

[lib/pdf_draw.ps]

2007-10-20T19:14:28.348994Z Alex Cherepanov

Make IGC_PTR_STABILITY_CHECK an independent compile-time flag that can be set
from the command line without editing gxobj.h .

[src/gxobj.h]

2007-10-20T16:34:38.276462Z Alex Cherepanov

Relax ICCBased color space validation. Don't reject correct PDF files that have
ICCBased color space as an alternative color space to another ICCBased color
space. Bug 689524, customer 870.

[lib/gs_icc.ps]

2007-10-20T00:55:55.884848Z Ralph Giles

Pass the CFLAGS obtained for fontconfig from pkg-config separately
to avoid contaminating the general build.

[src/Makefile.in src/configure.ac src/unix-aux.mak]

2007-10-20T00:37:23.775560Z Ralph Giles

Remove a redundant check for pkg-config.

[src/configure.ac]

2007-10-20T00:37:19.682121Z Ralph Giles

Look for fontconfig even if pkg-config doesn't find it.

DETAILS:

Like the comment says, pkg-config isn't universally installed,
so we should not depend on it. If pkg-config isn't available
or doesn't find fontconfig, check for the library and headers
it in the standard locations.

[src/configure.ac]

2007-10-18T18:58:54.836534Z Ralph Giles

Install header files as data, not executables. Bug 689466.

[src/unix-dll.mak]

2007-10-18T00:36:37.403207Z Ralph Giles

Remove a spurious CFLAGS instance from the jasper compile line.

DETAILS:

The definition of CC_ passed from the top level makefile should
already include a copy of the CFLAGS for environment overrides,
so the duplicate copy here was unnecessary.

Furthermore, the second expansion of CFLAGS at the end of the
compiler command line could result in picking up a version of
the jasper headers installed elsewhere in the system instead
of the copy in JASSRC, causing the build to fail on undefined
preprocessor symbols, since upstream doesn't have our error
reporting callback.

[src/jasper.mak]

2007-10-18T00:05:55.933230Z Ralph Giles

Replace our included libpng with the new upstream 1.2.22 release.

[libpng]

2007-10-18T00:01:45.449158Z Ralph Giles

Move the current copy of libpng out of the way for a pending update.

[libpng]

2007-10-17T23:04:50.954798Z Ralph Giles

Avoid memory corruption with broken files.

Patch from the Ubuntu libjasper package.

[jasper/src/libjasper/jpc/jpc_cs.c jasper/src/libjasper/jpc/jpc_dec.c jasper/src/libjasper/jp2/jp2_cod.c]

2007-10-16T07:54:08.209510Z Ken Sharp

ps2write: When encountering font names which contain unfortunate characters
such as white space, or delimiters, emit the name as an escaped string and 
'cvn' instead of a literal name.

DETAILS:
Bug #689420 "Errors with ps2write and special chars in FontName"

Patch from SaGS with some minor improvements.

Fonts whose name contains white space, or delimiter characters (eg /,(,[ etc)
were being written into the type 1 font stream using the name unchanged. This 
causes the resulting PostScript to fail on any PostScript interpreter. The 
exact error varies depending on the placement of the invalid character and 
the following data.

This is now handled by emitting the font name as a string, and using the cvn
operator to convert the string to a name, escaping characters if required. 
Note that both the C portion of the code needs to change, in order to write 
escaped names, and the PostScript prolog in order to undo any name escapement.

1. (gdevpsf1.c) write_font_name, check to see if the font name contains any
   characters which we need to escape. If so, then use the existing routine
   's_PSSE_template.process' to convert the name to an escaped character 
   sequence.

   Update the write_font_name routine so that it optionally writes a name
   to the output. If the name does not need escaping, then simply prepend a
   '/' to make a literal name, otherwise append a 'cvn' to convert the 
   escaped string to a name. When writing out the font header we just need
   the font name as a human readable string. When writing the /FontName
   entry in the font dictionary we need a PostScript name, either a literal
   or a PostScript escaped string converted to a name. (see below)

2. (gdevpsf1.c) psf_write_type1_font, alter the use of write_font_name in two
   places. Firstly to emit the name as part of the font comment, secondly to
   put the name as the value for the /FontName key in the fotn dictionary. In
   the first case we write it as a simple string, in the second as a name.

3. (opdfread.ps) The TypeDameons procedure extracts the FontName from the Font
   dictionary in the body of the job. Since the FontName can now be escaped,
   we need to undo the escapement before defining the font. Firstly we define
   a new procedure 'UnPDFEscape', secondly we call this when dealing with the
   FontName and the BaseFont keys, in order to convert the escaped name back
   to a normal name, so that the font can be found with findfont.

[src/gdevpsf1.c lib/opdfread.ps]

2007-10-16T00:36:28.849878Z Ralph Giles

Don't override the memory set by the caller in the JPXDecode stream.

[src/sjpx.c]

2007-10-16T00:36:27.806530Z Ralph Giles

It's the client's responsibility to call the set_defaults
method on a new stream. Bug 689362.

DETAILS:

The JPXDecode stream implementation was calling set_defaults
from within its own init method, clobbering the colorspace
request passed in through the stream's parameter dictionary.

[src/zfjpx.c src/sjpx.c]

2007-10-15T22:31:54.394164Z Henry Stiles

Error code from clist_decode_segment did not propagate back because
the inner automatic variable code shadowed the outer.

[src/gxclrast.c]

2007-10-15T18:09:18.231759Z Ray Johnston

Prevent C-stack overflow caused by infinite recursion. Related to
previous fix in same function to access the correct target color
procedure.

DETAILS:

Testing with other problem files detected the recursion. The previous
method to access the saved target get_color_comp_index is moved
before either use.

EXPECTED DIFFRENCES:

None.

[src/gdevp14.c]

2007-10-15T13:11:16.778228Z Ken Sharp

pdfwrite: When writing the /CreationDate /ModDate keys in the Info dictionary,
properly write the system local time instead of UTC.

DETAILS:
Bug #688783 "commit 6892 mis-uses the TZ environmental"

A rather lengthy thread, but in essence quite simple. A change to calculate
the system local time as an offset from UTC, and store this information in 
the form described in the PDF Reference (Section 3.8.3 "Dates" on p133 of 
the 1.6 PDF Reference).

The patch uses code supplied by SaGS.

(gdevpdf.c) pdf_initialize_ids, use the C runtime 'time' and 'gmtime' to 
determine the difference between local system time and GMT. Use this to 
calculate the difference (positive, negative, or none) from GMT, and the
number of hours and minutes comprising the difference. Use 'localtime' to
find the local system date and time.

Take all of the information from above, and format the result according to
the specification in the PDF Reference:

(D:YYYYMMDDhhmmssZhh'mm')

Where YYYY=4 digit local time year
        MM=2 digit local time month
        DD=2 digit local time day
        hh=2 digit local time hours (24 hour)
        mm=2 digit local time minutes
        ss=2 digit local time seconds
         Z=offset of local time from UTC
           Z=no difference
           +=local time later than UTC
           -=local time earlier than UTC
       hh'=hours difference between local time and UTC
       mm'=minutes difference between local time and UTC

[src/gdevpdf.c]

2007-10-15T06:43:04.430544Z Marcos H. Woehrmann

Added code to the pxlcolor device (gdevpx.c) to set the color space even
if the test for "portrait transformations" fails.

DETAILS:

The pclxl_begin_image() function performs a rather complicated test to
see if the image transformation can be "handled" (line 1434).  If this
test fails the routine falls through to using gx_default_begin_image().
However, in this case the pcl-xl color space is never set and if
the previous color space was eGray the pcl-xl stream will fail with
ExtraData (because 3 times as much data as expected will be written).
Presumably the inverse is also true, but I don't have a test case for it.

The solution is to call pclxl_set_color_space() in the use_default
case (a possibly more correct solution would be to call
pclxl_set_color_palette()).

[src/gdevpx.c]

2007-10-12T20:22:08.884187Z Ray Johnston

Fix SEGV when clist used with pdf14_cmykspot device.
Bug 689493 for customer #190.

DETAILS:

When the clist is used, the pdf14 device sets the clist color procs
(including get_color_comp_index) to it's own procedures, saving the
actual target procs. When the Separation name is new, we need to use
the saved target procs.

[src/gdevp14.c]

2007-10-12T16:38:07.833396Z Ray Johnston

Fix divide by zero crash. Bug 689493 reported by customer #190.

DETAILS:

When new_width is 0, just use 1 in the test (works well enough
for checking overflow)

[src/gdevprn.c]

2007-10-11T16:36:26.031981Z Ray Johnston

Fix incorrect colors with transparency to cmyk+spot devices (such as tiffsep).
Bug 689494 for customer #190.

DETAILS:

CMYK + Spot colors are subtractive. The blending with the 'bg' color was
inverted, causing very strange colors.

Note that the pdf14_cmykspot_put_image is VERY inefficient and at the
very least should have logic added to write runs of the same color
as a wide rectangle (rather than the current 1x1 pixel rectangles).

[src/gdevp14.c]

2007-10-10T23:02:18.957895Z Igor Melichev

Fix (stroking) : Prevent installing an extra clipper device, step 2.

DETAILS :

Bug 689427 "Superposed clippers".

The last patch doesn't fix the problem when stroking
a path with a shading color.

The new code distinguishes 3 cases :

1. When painting happens through low level device methods
which don't accept a clipping path. It happens inside 
stroke_fill, so the new code passes the clipper device to it.

2. When the painting happens through fill_path, 
which does handle a clipping path. It happens inside
FILL_STROKE_PATH, so the new code doesn't pass the clipper to it,
but passes the clipping path as it worked before the last patch.

3. When the stroking algorithm is called from 'strokepath',
don't need a clipping at all. This case works as before,
but the new code doesn't construct a clipping device.

Minor change : Added a new argument 'dev' to the macro
FILL_STROKE_PATH to simplify the code understanding and debugging.

[src/gxstroke.c]

2007-10-10T18:42:35.474048Z Ralph Giles

Pass the results of calling cups-config to cups.mak from configure 
through the top-level makefile rather than calling cups-config directly, 
so that passing an alternate cups environment to configure works.
Bug 689496.

DETAILS:

This is more consistent, since configure and cups.mak were previously 
calling cups independently. However, setting the cups environment at
the make level my have accidentally worked before; it won't work now.

[src/Makefile.in src/configure.ac cups/cups.mak]

2007-10-10T17:40:38.235834Z Ralph Giles

Turn on keyword substitution on pdf_cslayer.ps. This is the correct fix 
for the issue mentinoed in r8283. Also set native line endings and 
remove some spurious executable properties.

[lib/EndOfTask.ps lib/PDFX_def.ps lib/PDFA_def.ps lib/dumphint.ps lib/pdf_cslayer.ps]

2007-10-10T16:19:23.023493Z Marcos H. Woehrmann

Fixed Id line to make nightly regression run happy.

[lib/pdf_cslayer.ps]

2007-10-10T15:28:26.622499Z Igor Melichev

Fix (stroking) : Prevent installing an extra clipper device.

DETAILS :

Bug 689427 "Superposed clippers".

The old code installs a clipper in gx_stroke_path_only_aux
and then (indirectly) calls gx_general_fill_path
with passing same clipping path. It caused gx_general_fill_path
to install a second clipper with same clipping path.
This patch simply passes down a NULL clipping path.

Minor change : Added a 'pcpath' argument to the macro
FILL_STROKE_PATH for easier understanding and debugging.

[src/gxstroke.c]

2007-10-10T10:13:45.175824Z Igor Melichev

Fix (pdf14 device) : Optimize the buffer backdropping, step 2.

DETAILS :

1. Intersect the backdrop rectangle with the bbox of a real painting to the transparebcy buffer,
which is accummulated from pdf14_fill_rectangle. It reduces the rectangle for a faster blending.
1.1. Removed min_int, max_int from pdf14_buf_new against an integer overflow when computing 
sizes of rectangles.
1.2. Do intersect rectangles in In pdf14_put_image, pdf14_cmykspot_put_image, pdf14_custom_put_image.

2. dump_planar_rgba still could access outside the buffer due to a recent patch is incomplete.

[src/gdevp14.c]

2007-10-10T09:38:32.826812Z Igor Melichev

Fix (pdf14 device) : Optimize the buffer backdropping, step 1.

DETAILS :

This change is algorithmically equivalent.
It only defines some local variables as a preparation to the next change.

[src/gdevp14.c]

2007-10-10T08:59:39.164904Z Igor Melichev

Fix (pdf14 device) : Don't allocate transparency buffer for bands that appear outside the transparency bounding box.

DETAILS :

This is an optimization, which should be algorithmically equivalent.

For bands outside the transparency bounding box the old code
allocated a zero length buffer and performed fake operations with it.

The main change is gdevp14.c ln 550.
Others prevent an access to the buffer when it is not allocated.

Note that in some cases the new check is excessive
because (width <= 0 || height <= 0) normally means no buffer.
We check for (buf->data == NULL) anyway to simplify the sefity proof
and documentation.

[src/gdevp14.c]

2007-10-10T08:12:49.566532Z Igor Melichev

Fix (pdf14 device) : Properly intersect rects when composing transparency buffers (continued 2).

DETAILS :

Bug 689498 "transparency: The buffer backdroping code can write outside bufers.".
Bug 688631 "PDF segfault".

This patch ports the revision 7064 changes from pdf14_put_image to
pdf14_cmykspot_put_image and pdf14_custom_put_image, which were added 
after the revision 7064. They need same improvement, which was mised
due to a development miscoordination.

This change is committed without any testing,
because the author has no test cases which involve
pdf14_cmykspot_put_image and pdf14_custom_put_image.
Possibly they need to build Ghostscript with special options 
and to run the test case of the bug 688631 with special devices.
The bug 689498 is passed to Suport for further processing and testing.

[src/gdevp14.c]

2007-10-09T19:33:27.492485Z Till Kamppeter

On "make soinstall" some files did not get installed.

[src/unix-dll.mak]

2007-10-09T17:02:49.926924Z Igor Melichev

Fix (FAPI / UFST bridge) : A crash when processing an embedded CIDFontType 11.

DETAILS :

Debugged with running the test case of the bug 689471 with FAPI.
Needs an additional change to lib/FAPIconfig for running the test case with FAPI :

- /HookDiskFonts        [1 2 9 11 42]  % FontType values for disk PS fonts to be redirected to FAPI.
- /HookEmbeddedFonts    [1 2 9 11 42]  % FontType values for embedded PS fonts to be redirected to FAPI.
+ /HookDiskFonts        [2 9 11 42]  % FontType values for disk PS fonts to be redirected to FAPI.
+ /HookEmbeddedFonts    [2 9 11 42]  % FontType values for embedded PS fonts to be redirected to FAPI.

because UFST still can't handle embedded Type 1.

This patch passes impl_PCLchId2ptr as p_PCLglyphID2Ptr argument.
We believe it is correct for True Type,
but we're not sure about Type 1,
because Type 1 composite glyphs refer subglyphs 
in an inobvious way - see Type 1 specification.

[src/fapiufst.c]

2007-10-09T08:28:49.108879Z Ken Sharp

pdfwrite: Allow downsampling of images in a /Indexed colour space, provided the
downsampling type is 'subsample'.

DETAILS:
Bug 689265 "PDF created by GS 8.57 is much larger than from competitive creator"

The original job contains several images, including one large one, which are in a 
/Indexed colour space. We can't use average or bicubic downsampling with /Indexed
colour space, because the colours in the space may not be linear. It ought to be
possible to use subsampling though.

Where we previously checked the image colour space and decided to disable downsampling
if the colour space was /Indexed, we now additionally check the downsampling type
and permit it if the type is 'Subsample'.

(gdevpdfi.c) pdf_begin_typed_image, check the downsample type as well as the colour 
space before deciding not to allow downsampling. 

(gdevpdsi.c) psdf_setup_image_filters, check if the colour space is /Indexed before 
deciding which set of image parameters to use (2 places). Also, if we do encounter a
/Indexed space, make the compression filter into Flate to ensure we don't try and use any 
kind of JPEG compression, which may not work properly with Indexed spaces, and in any case
is not the most appropriate type of compression in this situation.

[src/gdevpsdi.c src/gdevpdfi.c]

2007-10-09T00:06:24.193850Z Igor Melichev

Fix (font emulation) : Could not handle unknown Ordering with FAPI.

DETAILS :

Debugged with running the test case of the bug 689471 with FAPI.

[lib/gs_fntem.ps]

2007-10-08T10:05:33.511010Z Ken Sharp

pdfwrite: Alter the AIIM URL emitted when creating PDF/A files.

DETAILS:
Bug #689375 ""

When writing PDF/A files we need to put a URL for the AIIM group in the metadata. Previously we were writing 'http://www.aiim.org/pdfa/ns/id.html' which is what Acrobat 7 does, now we write 'http://www.aiim.org/pdfa/ns/id/' which is what Acrobat 8 does.

(gzpdfe.c) pdf_write_document_metadata change the URL as above.

[src/gdevpdfe.c]

2007-10-08T07:13:32.510990Z Ken Sharp

pdfwrite: when encountering a glyph in a type 3 font for which no Charproc is defined 
emit a simple setcachedevice operation instead of an empty stream.

DETAILS:
Bug #688834 "Undefined characters in Type 3 fonts cause PDF conversion to fail"

The original report, based on an older version of pdfwrite, states that an error occurs with 
pdfwrite when using glyphs from a type 3 font where there is no charproc defined for the
glyphs.

In fact, with the current version of pdfwrite, no error occurs, but the resulting file
causes Acrobat to give warnings and display the result incorrectly. NB other PDF consumers
do not behave this way.

This appears to be caused by pdfwrite emitting an empty stream (length 0), because no charproc 
is captured for the glyph (since it has none). For some reason Acrobat takes exception to this.

A simple solution is to write a stream which is not empty. The sequence '0 0 0 0 0 0 d1'
, a

setcachedevice with arguments all 0, resolves the problem.

(gdevpdtt.c) In pdf_text_process, after capturing a Charproc for a type 3 font, check the length
of the stream. If it is 0 bytes, then emit '0 0 0 0 0 0 d1' and carry on.

[src/gdevpdtt.c]

2007-10-07T18:09:11.121700Z Igor Melichev

Fix (pdfwrite) : Ignore font errors that do not belong to embedded subset.

DETAILS :

Bug 689068 "ps2pdf13 fails with Error: /invalidfont in --ashow--".

The document could successfully rasterize,
but failed with invalidfont when converting to PDF.
It happened due to a missed glyph,
which is not atually used in the doeument.

The patch skips font errors that do not belong to the font subset.
However if the user requests to embed a complete font,
a warning is printed to stderr and the document fails
due to the font error as before the patch.

Changes :

1. gdevpdtb.c : Process a coplete font copy error as explained above.

2. gsfont.c : Ignore missed glyphs when computing the "fixed width" font feature.

[src/gdevpdtb.c src/gsfont.c]

2007-10-04T06:46:54.927607Z Ralph Giles

Revert a change inadvertently included r8257. This broke the MSVC
build, which does not define CC_SHARED.

[src/lib.mak]

2007-10-03T17:37:35.315273Z Ray Johnston

Revert patch 8268 (restoring the FCOfontmap-* files) and add the Encoding/
directory to the RESOURCE_LIST so that it will be include in the %rom%
file system. This is the _real_ fix to bug #689050 and explains why the
symptoms appeared to be related to having Wingdings installed on the
system. Thanks to Henry and Igor in pointing out the incorrect Encoding
used in the previous patch that led me to the actual problem.

[lib/FCOfontmap-PCLPS3 lib/FCOfontmap-PS3 src/int.mak lib/FCOfontmap-PCLPS2]

2007-10-03T04:40:18.040901Z Ray Johnston

Fix FCOfontmap-* files so that Wingdings will be found.
Bug #689050 for customer #951.

[lib/FCOfontmap-PCLPS3 lib/FCOfontmap-PS3 lib/FCOfontmap-PCLPS2]

2007-10-03T00:18:12.256656Z Ralph Giles

Document the .IgnoreNumCopies device parameter. Bug 689491.

[doc/Use.htm doc/Language.htm]

2007-10-02T23:55:30.880679Z Alex Cherepanov

Add extraction of layer information from Illustratir CS2/CS3 PDF files
to the code base but don't run it in the default configuration.

[src/int.mak doc/Develop.htm lib/pdf_cslayer.ps]

2007-10-02T07:31:58.125500Z Ken Sharp

pdfwrite: Convert 'text' followed by 'text charpath stroke' to a single text
operation by using text rendering mode 2.

DETAILS:
Bug #689310 "Offset between text and outline in pdfwrite.dev"

Emitting text, followed by the same text as an argument to charpath, and then stroking the
resulting path previously resulted in a large path being emitted and stroked in the PDF file. 

This is inefficient, but worse the path is not grid fitted, whereas the text is. When
used to stroke the outline of previously rendered text, either in a different colour or to
create a 'bold' effect, the emitted path did not always precisely match the rendered text.

This change is to emit this PostScript construct using the closest available match in PDF, 
which is the text rendering mode. There are two parts to this change, firstly to identify 
when a path is the result of a charpath, and secondly to merge text followed by charpath/stroke
operations into a single operation on output.

1. (gzpath.h) Add a new member 'last_charpath_segment' to the gx_path_s structure. Update the
   path garbage collection code for relocation of new variable.

2. (gxpath.c) Initialise the new member 'last_charpath_segment' to 0 in
   gx_path_init_contents, and also in path_alloc_copy to prevent copies being identified as
   the result of a charpath.

3. (gxchar.c) We need to be able to tell if a path was the result of a charpath. To do this
   we store the final segment of a path in 'last_charpath_segment' of the path
   structure during show_finish, if the current operation was a charpath. See also item 11.

4. (gdevpdfx.h) Add a new member 'last_charpath_op' to the gx_device_pdf_s structure, to
   hold the boolean argument associated with a charpath operation. Also add to the 
   pdf_substream_s structure to allow us to save and restore this value on entry to or
   exit from a PDF substream.

5. (gdevpdti.c) Save and restore the value of last_charpath_op in pdf_enter_substream
   and pdf_exit_substream.

6. (gdevpdfx.h) Add a new member variable 'last_charpath_op' to the 'pdf_substream_save_s' 
   structure to allow us to save and restore the last_charpath_op as noted above.

7. (gdevpdtt.c) During gdev_pdf_text_begin, if the operation is a charpath, check the
   following conditions, if met then store a copy of the charpath boolean variable in 
   a new member of the gx_device_pdf_s structure.
       1. Operation must be a charpath
       2. Current path must be empty (can't handle charpath concatenated to existing path)
       3. The font being used for the current text must be the same as the font used for
          the previous stored (but not yet emitted) text.
       4. The initial point of the text for the charpath must match the initial point of
          the previous stored text.
       5. The text bytes must be the same as the previous stored text.
       6. The point size of the text must match the previous stored text.
   Also, move the calculation of the font point size out of pdf_update_text_state so that
   we can calculate the size in pdf_compare_text_state_for_charpath' defined in 9 below
   without duplicating code.

8. (gdevpdtt.h) Prototype 'pdf_calculate_text_size'

9. (gdevpdts.c) Add a new function 'pdf_compare_text_state_for_charpath' to do the 
   checking noted above. The pdf_text_state_s structure is not defined publicly, so 
   we need code to access its members. Also add a function 'pdf_modify_text_render_mode'
   which will attempt to add a rendering mode (stroke, fill or clip) to existing text
   by updating the existing text rendering mode. Returns 0 if the existing text cannot
   be modified, and we fall back to emitting a path and stroke.

10. (gdevpdts.h) Add prototypes for the functions required in 9.

11. (gdevpdfd.c) In pdf_stroke_path, if the 'last_charpath_op' member of the pdf device
   structure is set, perform some more checks (below) and if passed, set the text render
   mode of the stored text, set the stroke colour, set the line width, and force the stored
   text to be emitted. This conveniently results in a gsave/grestore pair round the
   graphics state changes.
      1. The last charpath operation must have been 'false charpath'
      2. There must be a non-empty path (result of the charpath operation)
      3. The 'last_charpath_segment' stored in the path must match the actual last segment
         in the path. (can't handle path segments added to the result of a charpath)

12. (gdevpdfg.h) Make the pdf_reset_color routine public, as we need to be able to set the 
   colour from pdf_stroke_path.

13. (gddevpdfg.c) We need to be able to set a stroke colour while in a TEXT context,
   previously the routine pdf_reset_color, which emits colours and spaces, immediately
   switched to a STREAM context, which caused pending text to be flushed. pdf_reset_color
   was only called from two places, pdf_set_drawing_color and pdf_set_pure_color. The
   switch to a STREAM context has been moved to these routines, leaving pdf_reset_color to
   actually do the work without worrying about the context.
   It was found necessary to also reproduce some checks before switching context, to
   prevent unnecessary context switches.
   Removed unused local variable 'process_color' from pdf_reset_color.

There is scope for additional enhancement with this code. Presently there is no attempt to
deal with 'charpath gsave fill grestore stroke' constructs, nor to handle clipping paths 
resulting from charpath. There may be other possibilities.

[src/gdevpdfx.h src/gxchar.c src/gdevpdts.c src/gdevpdtt.c src/gzpath.h src/gdevpdfd.c src/gdevpdts.h src/gdevpdfg.c src/gdevpdti.c src/gdevpdtt.h src/gdevpdfg.h src/gxpath.c]

2007-10-01T23:02:53.086636Z Ralph Giles

Have mkromfs use $(GS_INIT) instead of hard-coding gs_init.ps. It was
intended that this be part of r8257.

[src/int.mak]

2007-10-01T23:00:35.110412Z Ralph Giles

Update pkg-config support in the ijs tree.

[ijs/Makefile.am]

2007-10-01T22:59:59.038063Z Ralph Giles

Improve portability in the autoconf build. Solaris doesn't support 'grep 
-q'. Bug 689490.

[src/configure.ac]

2007-10-01T06:26:21.808008Z Suzuki Toshiya

Fix: (TT font handler) : Use given prebuilt_encoding when Apple Roman TrueType cmap subtable is chosen

DETAILS:
As current implementation assumes /prebuilt_encoding[] is
compatible with WinAnsiEncoding when Microsoft UCS2 TrueType
cmap subtable is chosen, current implementation assumes
/prebuilt_encoding[] is same with MacRomanEncoding when
Apple Roman TrueType cmap subtable is chosen.
/prebuilt_encoding[] is completely ignored and the inverse
of MacRomanEncoding is used. Therefore, when Apple Roman
TrueType cmap subtable is chosen but /Encoding is
StandardEncoding or PDFDocEncoding, some characters are
shown by wrong glyphs. This patch uses /prebuild_encoding[]
if it's given, when Apple Roman TrueType cmap subtable is
chosen.

According to PDF Ref 1.7 p. 431, MacRomanEncoding does not
cover all characters in Apple Roman TrueType cmap subtable,
16 characters are missing. To exploit the glyphs as many
as possible via Apple Roman TrueType cmap subtable, this
patch introduces "MacRomanEncodingForTrueType" including
missing 16 characters. By this change, 16 glyphnames
can be exploited via Apple Roman TrueType cmap subtable.

There might be broken TrueType fonts that use the names
in MacRomanEncoding at incompatible 8bit charcode. The
text drawn by such fonts would be broken, the results are
unexpected.

[lib/gs_ttf.ps]

2007-10-01T06:19:18.139797Z Suzuki Toshiya

Fix: Preprocess the glyphnames in prebuilt_encoding by AdobeGlyphList for Microsft UCS2 cmap subtable

DETAILS:
According to PDF Ref 1.7 p. 430, Adobe modern products
always prioritize Microsoft UCS2 TrueType cmap subtable
regardless with /Encoding, as far as the font is declared
as Nonsymbolic by /Flags. For example, even if /Encoding
is MacRomanEncoding, Microsoft UCS2 TrueType cmap subtable
is prioritized than Apple Roman TrueType cmap subtable.
The encoding of Microsoft UCS2 TrueType cmap is not a
superset of MacRomanEncoding, see PDF Ref 1.7 Appendix D.
Current implementation expects the content of /Encoding 
is always compatible with chosen TrueType cmap subtable,
thus unexpected mismatching causes loss of glyph like:
bug 689351 "Content Loss for certain Embedded Type42 Glyphs with gs8.57"

When Microsoft UCS2 TrueType cmap subtable is chosen,
the glyphnames used in /prebuilt_encoding[] should be
preprocessed: the glyphnames changed to the charcode
compatible with Microsoft UCS2 encoding scheme, before
combining with charcode-glyph mapping table in Microsoft
UCS2 TrueType cmap subtable. The preprocessing should
be done by AdobeGlyphList that maps known glyphnames
to UCS2 charcode. The unknown glyphnames are left to
second processing in /.pdfmapchars. This preprocess
fixes bug 689351.

There might be broken TrueType fonts that use the names
in AdobeGlyphList at incompatible UCS2 charcode. The text
drawn by such fonts would be broken, the results are
unexpected.

[lib/gs_ttf.ps]

2007-09-30T19:46:25.258028Z Alex Cherepanov

Add an option that controls rendering of PDF annotations. By default
annotations are rendered as before.

[lib/pdf_main.ps doc/Use.htm]

2007-09-29T05:53:34.943145Z Alex Cherepanov

Following the PDF spec, don't use .notdef glyph in Type 3 font.
.notdef may not be present at all. Bug 689475

[lib/pdf_font.ps]

2007-09-27T23:06:07.081517Z Ralph Giles

Remove the mkromfs code under 'make clean'. Bug 689474.
Also, use the GS_INIT define instead of hard-coding gs_init.ps
as the root of the postscript library code.

[src/lib.mak src/gs.mak]

2007-09-27T20:30:39.973443Z Ralph Giles

Improve shared build support on MacOS X.

[src/configure.ac src/unix-dll.mak]

2007-09-27T20:26:51.405933Z Ralph Giles

Install iapi.h and ierrors.h as part of the soinstall makefile target.
Bug 689466.

[src/macosx.mak src/Makefile.in src/unix-dll.mak src/unix-gcc.mak]

2007-09-27T20:20:46.283268Z Ray Johnston

Prevent BandWidth from being set smaller than the page width. Fixes
crash reported in bug #688734.

[src/gxclist.c]

2007-09-26T09:48:55.994917Z Igor Melichev

Fix (Windows installer) : MSVC can't build dwinst.c .

DETAILS :

A recent patch erroneusly replaced 'private' keyward in a C++ class definition.

[src/dwinst.h]

2007-09-26T04:37:20.025441Z Alex Cherepanov

Fix multiple inclusion of page objects in the optimized PDF file.
Extend special handling of page objects to Annots and AcroForm
object enumeration. Bug 689292, customer 932.

[lib/pdfopt.ps]

2007-09-25T13:31:24.199299Z Ralph Giles

Replace the 'private' define with the now standard C keyword 'static'.          

DETAILS:
                                                                                The compilers we support have supported static for some time now, so            
idiomatic, and removes one of the obstacles to compiling Ghostscript            
as C++.

The patch also removes support for compilation with -dNOPRIVATE, which          
is not longer necessary with modern debuggers.

[src/gdevm48.c src/idstack.c src/gdevmsxf.c src/gdevrinkj.c src/gdevmem.c src/gdevmem.h src/gdevwdib.c src/gxoprect.c src/gdevsunr.c src/zvmem.c src/gdevpdtc.c src/gstrap.c src/gsfcmap1.c src/gxxfont.h src/gswts.c src/gsstate.c src/gdevlbp8.c src/zcsdevn.c src/gdevdm24.c src/zcontext.c src/gxdhtserial.c src/gdevpdts.c src/gdevcljc.c src/iscanbin.c src/gdevmiff.c contrib/gdevlx7.c src/gxclutil.c src/gp_mshdl.c src/zfont.c contrib/japanese/gdevml6.c src/zarray.c src/gxdevcli.h src/gdevpe.c src/zchar42.c src/gsfont0.c src/gscscie.c contrib/lips4/gdevlips.c src/gdevwts.c src/zdfilter.c src/icfontab.c src/zht1.c src/zdevcal.c src/zpcolor.c src/gdevpdfi.c src/zcssepr.c src/sdcparam.c contrib/gdevcd8.c src/bcwin32.mak src/zdps1.c src/gdevokii.c src/gdevpdtd.c src/zcfont.c src/zhsb.c src/gdevprna.c src/zcolor.c src/gxhtbit.c src/sfxfd.c src/zupath.c contrib/lips4/gdevl4v.c src/gdevpdtt.c src/gpmisc.c src/gdevpbm.c src/ireclaim.c src/gdevmrun.c src/gconf.c contrib/japanese/gdevnpdl.c src/zfbcp.c contrib/japanese/gdevmag.c src/gserver.c src/gp_psync.c src/gdevcmap.c src/zht2.c src/gdevpdfj.c src/zfarc4.c src/gp_os2pr.c src/gdevwprn.c src/gdevpsd.c src/gsiomacres.c src/gxclfile.c src/gxpdash.c src/ztrap.c src/gxfilltr.h src/gdevpdte.c src/gdevdevn.c doc/Drivers.htm contrib/japanese/gdevalps.c src/gsgcache.c src/zfile.c src/gdev4693.c src/gsptype1.c src/gxchar.c src/gxclbits.c src/zfcid0.c src/gsfcid2.c src/zgstate.c contrib/gomni.c src/gsalloc.c src/zfontenum.c src/gdevmeds.c src/gdevmpla.c src/gdev4081.c src/gscicach.c src/watclib.mak src/gxclzlib.c src/istack.c src/zfont0.c src/zmath.c src/gdevpdfk.c src/gdevhit.c src/gxclimag.c src/gxhintn1.c src/gxfillts.h src/gdevpdtf.c src/gdevddrw.c src/gschar.c src/gxht.c src/gdevpsfm.c src/sarc4.c src/gdevpsdp.c src/gxcht.c src/gsptype2.c src/gdevpsu.c src/gdevxalt.c src/gdevclj.c src/zvmem2.c src/zfcid1.c src/gstrans.c contrib/gdevln03.c src/gstype2.c src/icontext.c src/zstring.c src/zfont32.c src/gzspotan.c src/gxclip2.c src/gdevdrop.c src/gp_macio.c src/sbhc.c src/scfd.c src/gsdps.c src/zfont1.c src/spngp.c src/gdevcgml.c src/gdevpx.c src/gsmatrix.c src/gdevl256.c src/igcref.c src/zcharx.c src/gxtype1.c src/zdouble.c src/spdiff.c src/gdevcp50.c src/gsmemret.c src/gdevpdtw.c src/gxclip.c src/sfilter1.c src/iname.c src/zmedia2.c src/gxiscale.c src/gxpcmap.c src/gdevnfwd.c src/zcontrol.c src/gdevxcmp.c src/gsfcmap.c src/scfe.c src/zfont2.c src/gdevlj56.c src/gxp1fill.c src/gsciemap.c src/gdevhl7x.c src/zdscpars.c src/gdevos2p.c src/gsparam.c src/gdevpdfm.c src/gp_unix_cache.c src/imain.c src/gdevwpr2.c src/zfilter2.c src/zfont42.c src/zchar.c src/smd5.c src/gdevsun.c src/ztrans.c src/sjpx.c src/zcsindex.c src/gdevrops.c src/gxipixel.c src/zcidtest.c src/sfilter2.c src/gdevijs.c src/gdevsnfb.c src/gdevifno.c src/gscrd.c src/gxmclip.c src/gdevjpx.c src/gdevcslw.c src/zfdctd.c src/zdps.c contrib/gdevhl12.c src/gdevdsp.c src/zmatrix.c src/gdevescp.c src/gsiodev.c src/igc.c src/gdevpipe.c src/msvc32.mak src/gdevmacxf.c src/gsfunc0.c src/gdevsvga.c src/gdevpdti.c src/zdosio.c src/gdevepsn.c src/gsparam2.c src/gdevpsf1.c src/gdevpsds.c src/zfsample.c src/zfdecode.c src/gsstruct.h src/siscale.c src/gxfill.c src/gsdsrc.c src/gximag3x.c src/gxclread.c src/dwtrace.c src/gdevmswn.c src/gdevjpeg.c src/siinterp.c src/gdevbbox.c src/gsdll.c src/gspath1.c src/gdevtfax.c src/gdevpjet.c src/gdevphex.c src/sjpegc.c src/gshtscr.c src/zfdcte.c src/gsnogc.c src/zfcmap.c src/gdevbit.c src/gdevfax.c src/gdevbmpa.c src/gsequivc.c src/gp_wsync.c src/gsdevice.c src/gxclmem.c src/gscparam.c src/gshtx.c src/gdevsj48.c src/gdevpdfo.c src/sdctd.c src/gsmemory.c contrib/japanese/gdevfmlbp.c src/gdevcdj.c src/scfdgen.c src/ttcalc.c src/gdevtknk.c src/gdevpsf2.c src/gxidata.c src/gsroptab.c src/gdevm1.c src/gsistate.c src/os2.mak src/sstring.c src/gscolor2.c src/gxpath.c src/scfparam.c src/gdevupd.c src/interp.c src/gsmalloc.c src/zcrd.c src/ttfmain.c doc/C-style.htm src/gdevm40.c contrib/japanese/dviprlib.c src/gsiodisk.c src/gdevpsim.c contrib/japanese/dviprlib.h src/gdevpcfb.c src/gdevvec.c src/gp_msprn.c src/gdevmgr.c src/sdeparam.c src/gxacpath.c src/gdevpdfp.c src/ziodev.c src/gslib.c src/gdevimgn.c src/gdevvglb.c src/sdcte.c src/gsovrc.c src/gxshade1.c src/gxccache.c src/gdevm32.c src/gxfdrop.c src/gp_unifs.c src/gsparams.c src/gxhintn.c src/gsiorom.c src/gdevbjcl.c src/dvx-gcc.mak src/gdevpsdu.c src/gp_mswin.c src/gdevm2.c src/gspath.c src/gdevwddb.c src/gp_os2.c src/zcolor1.c src/gxpcopy.c src/gdevdjet.c src/gdevstc.c src/ialloc.c src/gxfapiu.c contrib/japanese/gdevlbp3.c src/zpath1.c src/gdevm24.c contrib/eplaser/gdevescv.c contrib/gdevxes.c src/ilocate.c src/gxdcolor.c src/gdevpm.c src/gdevbmp.c src/gschar0.c src/gdevbmpc.c src/zdevice.c src/gscie.c src/gdevsppr.c src/igcstr.c src/gxi16bit.c src/gdevn533.c src/idebug.c src/gsht.c src/gsncdummy.c src/gsfunc3.c src/gdevm16.c src/gdevperm.c src/genconf.c src/zfilter.c src/gstype42.c src/sa85d.c src/sbcp.c src/zcolor2.c src/gdev3b1.c src/gdevtrac.c src/gp_ntfs.c src/gdevatx.c src/zfproc.c src/genht.c src/zgeneric.c src/gs.c src/gxclrect.c src/zdevice2.c src/gsshade.c src/sjbig2.c src/gdevpdfb.c src/gscrdp.c src/msvclib.mak src/sjbig2.h src/gxclrast.c src/gsicc.c src/zcid.c src/zfile1.c src/gdevp2up.c src/zimage3.c src/gdevo182.c src/zarith.c src/gdevpdfr.c src/zcspixel.c src/gximage1.c src/gdevppla.c src/zmisc1.c contrib/gdevop4w.c src/wccommon.mak src/gsfunc4.c src/gxclpath.c src/gxcmap.c src/gxfcopy.c src/gdevpsft.c src/gdevtfnx.c src/gsmisc.c src/gxicolor.c src/zpath.c src/gdevm4.c contrib/opvp/gdevopvp.c src/gxfillsl.h src/zcolor3.c src/gxpageq.c src/gsdparam.c src/gxcpath.c src/gdevprn.c src/gdevlxm.c contrib/japanese/gdevdmpr.c src/gdevcif.c src/gxdevndi.c src/gdevprn.h src/gdevpdfc.c contrib/gdevgdi.c src/gdevabuf.c src/gdevherc.c src/gdevsgi.c src/zcie.c src/gdevsco.c src/stream.c src/gdevdflt.c src/zcharout.c src/gdevepsc.c src/gdev8510.c src/gximage2.c src/srld.c src/zht.c src/zncdummy.c src/gxstroke.c src/gxshade4.c contrib/gdevlx32.c src/zmisc2.c src/iparam.c src/sjpx_luratech.c src/zrelbit.c src/iinit.c src/gdevxini.c src/gxclist.c contrib/japanese/gdevmjc.c src/watcw32.mak src/gxccman.c src/gsalphac.c src/gdevpsfu.c src/gxshade.c contrib/japanese/gdevmjc.h src/gdevlp8k.c src/zfunc.c src/gsclipsr.c src/idict.c src/ttfmemd.c src/gscoord.c contrib/japanese/gdevrpdl.c src/genarch.c src/ztype.c src/gdevxxf.c src/zshade.c src/gdevpdfd.c src/gdevdgbr.c src/gdevmr2n.c src/gdevxcf.c src/gdevcfax.c src/zicc.c src/zchar1.c src/vdtrace.c src/gscdevn.c src/iscan.c src/gsnotify.c src/gdevpdft.c src/gximage3.c src/gdevpsdi.c src/srle.c src/zfilterx.c contrib/gdevlx50.c src/shcgen.c src/zmisc3.c src/zfapi.c src/zfunc4.c contrib/gdevbjc_.c src/gscpixel.c src/ziodev2.c src/gsiodevs.c src/zmisc.c src/gdevplnx.c src/gxttfb.c src/simscale.c src/zfzlib.c src/Makefile.in src/dscparse.c src/gscsepr.c src/gdev3852.c src/iutil2.c src/dscparse.h src/gsimage.c src/gxwts.c src/gstext.c contrib/japanese/gdevj100.c src/msvccmd.mak src/gdevpdfe.c src/gsflip.c contrib/lips4/gdevlprn.c src/gdevadmp.c src/sidscale.c src/zchar2.c src/zdpnext.c src/geninit.c src/zusparam.c src/gdevjbig2.c src/gdevpdfu.c src/gximage4.c contrib/gdevdj9.c src/gxshade6.c src/gdevp14.c contrib/lips4/gdevl4r.c src/dwinst.h src/gdevpdf.c src/macosx.mak src/zpacked.c src/ifont.h src/zfmd5.c src/gp_dosfe.c src/iutil.c src/gdevpng.c src/zrop.c src/zalg.c src/zfjpx.c src/gzpath.h src/sfxstdio.c src/gspaint.c src/sjbig2_luratech.c contrib/japanese/gdev10v.c contrib/gdevmd2k.c src/sjbig2_luratech.h src/gdevccr.c src/gdevdcrd.c src/zbseq.c src/ziodevsc.c src/imainarg.c src/zfrsd.c src/gdevl31s.c src/gdevdjtc.c src/spprint.c src/gdevpcx.c src/zfileio.c src/zbfont.c src/slzwd.c contrib/japanese/gdevespg.c src/unix-gcc.mak src/gdevpdfv.c src/gxpflat.c src/gxifast.c src/zsysvm.c src/gsimpath.c src/gdevx.c contrib/gdevbjca.c src/gsmemlok.c src/sbwbs.c src/gximage.c src/gdevstc4.c src/ziodevs.c src/unixansi.mak src/gdevpsfx.c src/szlibd.c src/gscspace.c src/gdevimdi.c src/gdevdfax.c src/gdevm8.c src/gdevpnga.c src/gsropc.c src/zstack.c src/gsfcid.c src/gsfont.c src/isave.c src/zimage.c src/gdevm64.c src/gdevcgm.c src/zdict.c src/zfimscale.c src/gdevtsep.c src/gsfont0c.c src/iccfont.c src/gsht1.c src/gdevpdfg.c contrib/japanese/gdevp201.c src/gdevps.c src/gspcolor.c src/gxi12bit.c src/gxcllzw.c src/zfjbig2.c src/gdevpdtb.c src/gsdps1.c src/gdevs3ga.c src/slzwe.c src/gshsb.c src/gscolor.c src/smtf.c src/ztoken.c src/gxpaint.c src/x_.h src/gdevtifs.c src/zchar32.c src/seexec.c src/gdevm56.c src/spsdf.c src/gximono.c src/fapiufst.c src/szlibe.c src/gxctable.c src/gp_vms.c src/gp_iwatc.c src/gp_os9.c src/gdevbj10.c src/gxclipm.c src/zpaint.c src/gdevmac.c src/stdpre.h src/iplugin.c contrib/japanese/gdevfmpr.c src/gsgdata.c src/gdevmac.h]

2007-09-24T03:52:18.847453Z Alex Cherepanov

Ignore color operations in uncolored type 3 font in PDF files for
compatibility with Acrobat Reader 6 and higher.
Bug 689302, customer 870.

[src/int.mak lib/pdf_draw.ps src/zchar.c]

2007-09-20T12:15:52.643667Z Igor Melichev

Fix : A crash in garbager after clist playback fails in image.

DETAILS :

This problem was occasionally detected when disk overflow happens with 
the test case of the bug 689440.

device_clist_enum_ptrs, device_clist_reloc_ptrs process
gx_device_clist::writer.clip_path when image_enum_id is not zero.
The clist playback code sets it when processing an image.
We guess it was done to avoid redundant clist writing,
and we think it's not a best way to do that.

If an image processing fails with an error,
the old code  does not reset image_enum_id.
Later (when the interpreter closes) 
the garbager processes gx_device_clist::writer.clip_path .
But in the test case it appears to be a pointer from global memory
to local memory, and its relocation appears wrong.
A crash happens while validating the heap after the relocation.

We're not sure why gx_device_clist::writer.clip_path
needs to be set between image plane data portions,
and why the garbager methods are coded to process it.
We guess all these manipulations are wrong,
and a right way should be to call cmd_check_clip_path
in clist_image_plane_data. 

See also comment in cmd_check_clip_path : 
"The clip path might have moved in memory".
We guess it assumes that the pointer is not relocated
when image_enum_id is zero and the ppointer is set.
We guess it should be regular assumption
for all cases, and the clist device garbager methods
must never process it.

This patch applies a minimal change to prevent the crash,
and does not close other suspections.
The change simply closes the image enumerator
when writing to it ends with an error.

[src/gxclrast.c]

2007-09-20T08:49:49.922199Z Igor Melichev

Fix (pdfwrite) : Allow image encoding filter initialization with no parameters passed from the client.

DETAILS :

Bug 689458 "pdfwrite image crash (pcl and xps)".

The change 6122 doesn't account that some client 
may pass no parameters for filter initialization.
Fixing it now and improve the documentation.

[src/gdevpsdi.c]

2007-09-18T19:11:21.591397Z Ralph Giles

Update the build instructions to reflect current practice of shipping 
all the 3rd party libraries we depend on. Bug 689446.

[doc/Make.htm]

2007-09-18T19:01:34.199941Z Ralph Giles

Correct some documentation errors. Bug 689433.

[doc/Projects.htm lib/ps2pdf.cmd doc/Use.htm lib/ps2pdf.bat doc/Ps2pdf.htm]

2007-09-18T17:32:31.734909Z Ralph Giles

Remove obsolete font encoding and compilation instructions from the 
documentation. Bug 689432.

[doc/Fonts.htm]

2007-09-18T15:41:08.152952Z Igor Melichev

Fix : The interpolation of imagemask must not apply to high resolution images (continued).

DETAILS :

Fixing an inaccuracy in a comment in the last patch.

[lib/gs_img.ps]

2007-09-18T15:33:51.055573Z Igor Melichev

Fix : The interpolation of imagemask must not apply to high resolution images.

DETAILS :

Bug 689249 "Major performance degradation rendering PDF",

The revision 7123 implements a conversion of imagemask 
into a bigger image with a smoother pixel granularity. 
Actually the conversion isn't useful for high resolution images
which map an image pixel into a small number of device pixels.
This patch implements such check and it apparently helps for pdfwrite.

Note it includes an arbitrary threshold,
which may need further adjustment.
See comment in code.

[lib/gs_img.ps]

2007-09-14T10:17:07.152885Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 8).

DETAILS :

Bug 689436 "pattern rendering regression with revision 8095".

Do not write tile phase to clist before trying to write the color.
If the latter fails, the phase may become wrong due to 
overloading cmd_opv_set_tile_phase with tile phase and device halftone phase.

With the test case the old code, when writing a trapezoid to clist, 
first writes halftone phase, then fails to write the pattern color 
and falls back to gx_default_fill_trapezoid.
The latter writes strip_copy_rop with it own phases.
But the clist reader expects strip_copy_rop phase to be written
*after* the tile header, so the reader misses the phase sychronizm.

The fix simply delays writing the phase after the color is written.

[src/gxclpath.c]

2007-09-14T05:23:52.359324Z Alex Cherepanov

Add recognition of a CFF file fith the extended header = <01000C02>.
Bug 689449, customer 1110.

[lib/pdf_font.ps lib/gs_cff.ps]

2007-09-13T08:30:48.823871Z Ken Sharp

Update pdfwrite to handle type 0 fonts with type 1 or type 2 descendant fonts (continued).

DETAILS:
Bug #689212 "irregular baselines - gs pdfwrite changes CFF to Type 3". There are no functional changes, the new code behaves the same as the old. The
temporary buffer allocated in pdf_text_process is used to hold the list of glyph
name indices, and the working buffer of indices for pdf_obtain_font_resource_unencoded,
rather than allocating new memory. This considerably simplifies the clean-up on
error in scan_cmap_text.

1. gdevpdtt.c In pdf_text_process, ensure that enough memory is available in the
   temporary buffer. We need to promote character codes to glyph name indices, so
   we need storage for as many glyph name indices as there were input character
   codes. In addition, we need a temporary buffer of the same size for
   pdf_obtain_font_resource_unencoded (maximum required) so we need to double this amount.

2. Update process_cmap_text to pass the buffer allocated in pdf_text_process, and
   passed as an argument to process_cmap_text, to scan_cmap_text.

3. Alter the definition of scan_cmap_text to take the temporary buffer as an
   argument. Modify the code in scan_cmap_text to use the temporary buffer rather
   than allocating new space. Remove all the code for allocating and especially freeing
   the temporary memory. Some corrections to indenting also performed here.

[src/gdevpdtc.c src/gdevpdtt.c]

2007-09-11T19:29:17.888456Z Igor Melichev

Fix (filling algorithm) : Split big segments before filling a path.

DETAILS :

Bug 689397 "Infinite loop is PS ATS file tp pcxcmyk device."

The old code didn't split big segments due to an inaccurate coding.
It caused a fixed overflow with in a coordinate compitation
and a loop of about 2^30 steps.

[src/gxpcopy.c]

2007-09-10T08:31:42.651229Z Ken Sharp

Update pdfwrite to handle type 0 fonts with type 1 or type 2 descendant fonts.

DETAILS
Bug #689212 "irregular baselines - gs pdfwrite changes CFF to Type 3"

There was previously no code in pdfwrite to handle type 0 fonts with type 1 descendant 
fonts. This caused pdfwrite to 'fall back' to the default implementartion which converts
glyphs to a type 3 bitmap font.

This change is to enable scalable fonts to be embedded in the output. NB it is not 
possible, in PDF, to construct a type 0 font with anything other than CIDFonts as 
descendants, and we must therefore output one or more type 1 fonts to do the job.

1. (gdevpdtt.c) in scan_cmap_text add a case to handle a type 1 descendant font. The main
    work is done in this routine; we create a list of glyph name indices representing 
    each of the input character codes and later we use pdf_obtain_font_resource_unencoded
    and the TEXT_FROM_GLYPHS operation to mark the font usage, and create an 'encoded'
    string for output.

    If font->procs.next_char_glyph returns a glyph name index, then we simply add it to
    our list, if it returns a character code (a CMap can map a character code in the type
    0 font to a character code in a descendant font) then we use the descendant font
    'procs.encode_char' to get a glyph.

    Once we have a complete list of glyphs, we pass it to
    pdf_obtain_font_resource_unencoded to add the glyphs to the encoding, and return a
    string where the character codes match the newly created/modified encoding.

    Finally we pass the encoded string and glyph list to process_text_modify_width, using
    the descendant font.

    A couple of minor points; its possible to change descendant fonts in the middle of a
    string, and we need to cope with that, hence the copying of the last glyph in the list
    when a font_change occurs. Its possible to return a different pdfont if we run out of
    encoding positions in the current one, which can result in multiple type 1 fonts in
    the output.

2. We need to use the function adjust_first_last_char, which was defined private in
   gdevpdte.c, so this has been made public.

3. A prototype for adjust_first_last_char has been added to gdevpdtt.h

4. The function reserve_char_code_in_pdfont was written to handle single glyphs, it can
   now be called with multiple glyphs. The loop for re-using positions in the encoding
   with /.notdef codes didn't use the 'last_reserved_char' argument, which meant that it
   kept returning the same position. To prevent this it now pays attention to the
   'last_reserved_char' argument.

5. Finally, the routine pdf_make_text_glyphs_table_unencoded, which calls
   reserve_char_code_in_pdfont also did not previously expect to be called with multiple
   glyphs. The loop below do_unkown has been modified to use a local variable, instead of
   pdfont->u.simple.last_reserved_char. THis means that, should an error occur, the value
   of pdfont->u.simple.last_reserved_char will not be modified.

[src/gdevpdtc.c src/gdevpdtt.c src/gdevpdte.c src/gdevpdtt.h]

2007-09-09T00:53:12.649192Z Alex Cherepanov

Make pswrite and epswrite devices generate proper line-interleaved image
stream even when they receive several scan lines at once. This happens when
the source image operator takes large strings as multiple data sources.
Bug 688200, customer 632.

[src/gdevps.c]

2007-09-08T22:31:20.200765Z Alex Cherepanov

Declare Ghostscript as _LARGEFILE64_SOURCE program, i.e. request transitional
interface to large file support. Check for mkstemp64() availability specially.

[src/Makefile.in src/configure.ac src/stdpre.h src/gp_unifs.c]

2007-09-08T21:59:54.482448Z Alex Cherepanov

Include our std.h header first to ensure consistent type definitions in
contributed files. This is required on HP-UX with aC++ compiler.

[contrib/gomni.c contrib/pcl3/eprn/pagecount.c contrib/pcl3/src/pclcap.c contrib/gdevlx50.c contrib/opvp/gdevopvp.c contrib/pcl3/eprn/mediasize.c]

2007-09-08T17:05:59.540260Z Till Kamppeter

Reflect in the PPD files that the CUPS support comes with GPL Ghostscript now and not with ESP Ghostscript.

[cups/pxlmono.ppd cups/pxlcolor.ppd]

2007-09-05T19:21:05.959793Z Alex Cherepanov

Replace non-standard function call fdopen64() with fdopen(). The former
is not available on most platforms and not needed anyway because O_LARGEFILE
flag is set earlier in the code. Bug 689175.

[src/gpmisc.c]

2007-09-05T07:54:54.782032Z Suzuki Toshiya

Fix (TT fonts) : Suppress loading trailing data after chosen cmap subtable.

DETAILS:

The current cmap selector/loader tries to load a subtable
for Microsoft platform && UCS2 encoding with anything
in trailer, although only MS+UCS2 subtable is used.
Thus, if the cmap table has several additional subtables
after MS+UCS2 subtable (e.g. multiple 16bit cmap subtable
for Shift-JIS/Big5/GB2312/Wansung/Johab, or very long
32bit subtable in format 8/10/12, or simple junk data),
cmap subtable loader tries to load MS+UCS2 subtable and
trailing garbage, and tries to define /cmaptab for
concatenated string of them. So, rangecheck or limitcheck
error can occur due to too-long string. Typical example
is found in bug 688337 which is caused by TrueType font
including cmap subtable in format 12.

If we restrict the scope to MS+UCS2 subtable, it must
not be greater than 0xFFFF bytes. Because cmap subtable
headers in format 0,2,4,6 define these tables length in
16bit. The cmap parser is fixed to check the subtable
header content and read exact length of chosen subtable,
to exclude trailing garbage.

In addition, /getinterval_from_stringarray has a bug
that appears when the end of requested string just fits
to the gap of member strings. The bug is fixed, too.

By this patch, bug 688337 is fixed.

DIFFERENCE:

None.

[lib/gs_ttf.ps]

2007-09-03T13:19:11.511212Z Alex Cherepanov

Fix reference counting logic for clip stack elements. The reference counter
now shows the number of gstates that point to a given element directly or
indirectly. Bug 689429.

[src/gsclipsr.c src/gsstate.c]

2007-08-31T20:53:42.169700Z Igor Melichev

Fix (graphics library) : Always set HWResolution to clipper device.

DETAILS :

Fixes the bug 689365 
"Clipper device may have a wrong HWResolution".

[src/gxfill.c src/gxclip.c]

2007-08-31T19:09:47.125231Z Igor Melichev

Fix (graphics library) : Distinguish two methods gx_make_clip_device_on_stack, gx_make_clip_device_in_heap.

DETAILS :

This is a preparation for fixing the bug 689365 
"Clipper device may have a wrong HWResolution",
step 2.

This change is algorithmically equivalent.

1. Drop tx, ty,arguments, because they always zero.

2. There are 2 different cases in code:
allocation on stack or in heap.
Now we define them explicitely.

3. Adding the 'target' argument,
and adjust reference counters inside the "in heap" method.
The call to open_device is moved inside the methods.

Note that the old code in some cases calls open_device 
after doing some settings (2 occurances in gxfill.c). 
The new code does before that.
We belirvr it is algorithmically equivalent,
because we checked open_device against using the
data being set there.

[src/gdevbbox.c src/gxcpath.h src/gximask.c src/gxccache.c src/gxfill.c src/gxclip.c src/gxstroke.c src/gxclrast.c src/gdevdbit.c src/gxipixel.c]

2007-08-31T17:22:21.775099Z Igor Melichev

Fix (graphics library) : Expand gx_make_clip_path_device, gx_make_clip_device.

DETAILS :

This is a preparation for fixing the bug 689365 
"Clipper device may have a wrong HWResolution".

This change is algorithmically equivalent.

The old code defines a function gx_make_clip_path_device,
and a macro gx_make_clip_device similar as a small wrappers for 
gx_make_clip_translate_device. This patch expands
and removes them as FOR a standardization.

The 'list' argument of gx_make_clip_translate_device is replaced with
'pcpath' argument, because the old code always extract the list
from pcpath. The extraction is now done inside gx_make_clip_translate_device.

[src/gdevbbox.c src/gxcpath.h src/gximask.c src/gxccache.c src/gxfill.c src/gxclip.c src/gxstroke.c src/gxclrast.c src/gdevdbit.c src/gxipixel.c]

2007-08-31T15:31:06.557286Z Igor Melichev

Fix : Remove the pdfwrite/NODISPLAY nonsense from the documentation.

DETAILS :

That statement was always false.

[doc/Use.htm]

2007-08-31T08:29:55.996410Z Igor Melichev

Fix (pdfwrite) : A wrong encoding of Metadata (continued).

DETAILS :

The revision 8181 added a bug which caused an infinite loop 
with -dPDFA Altona-Testsuite_p2_S_x3.pdf

[src/gdevpdfe.c]

2007-08-31T08:27:16.425671Z Igor Melichev

Fix (pdfwrite) : A crash with incorrect shading.

DETAILS :

Bug 689394  "SEGV with MSVC7 run time checking in Type 7 shading."
See comment in code.

[src/gdevpdfi.c]

2007-08-31T05:43:44.869532Z Igor Melichev

Fix (Type 1 hinter) : Infinite loop in t1_hinter__fix_subglyph_contour_signs.

DETAILS :

Bug 689298 "Infinite loop in t1_hinter__fix_subglyph_contour_signs()".

Well it's a student level error in the algorithm.
Thanks to Alex for the test case with 5 nesting contours.

[src/gxhintn1.c]

2007-08-31T04:47:58.034291Z Igor Melichev

Fix (font rendering) : alloc_char_bits could fall into infinite loop.

DETAILS :

Bug 689036 "infinite loop in char cache logic".

The character cache algorithm assumes that a pointer to
any allocated cached_char instance appears somewhere in ccache.table .
However from the old experience we know that
this obvious invariant appears frequently broken due 
to inaccurate manipulation with cache by clients.
For example, a client sometimes reserves and initializes 
a cached_char instance and then fail due to another error 
before storing the pointer to ccache.table.

In the old code a cycle in alloc_char_bits 
strongly depends on this invariant, 
and therefore it is potentially harmful.
In the past we have got a lot of bugs about it.
Now we restrict the cycle with the cache size.
Changed few function prototypes with returning error
if the invariant is broken.
Note that the graphics library interface changes,
so other interpreters must update the calls to 
alloc_char_bits.

[src/gxchar.c src/gxccman.c src/gxchar.h src/gxccache.c]

2007-08-30T05:53:42.339598Z Igor Melichev

Fix (pdfwrite) : Uninitialized data after converting a Type 42 font into CID font.

DETAILS :

Bug 689399 "PDFA-Option cause gswin32 to crash".

This change is important with -dPDFA only,
and doesn't change the behavior otherwise.
Some font descriptor fields were not initialized.

[src/gdevpdtd.c]

2007-08-30T02:36:52.268008Z Igor Melichev

Fix (pdfwrite) : Properly handle FontMatrix of a Type 3 font.

DETAILS :

Bug 689267 "File converted to PDF displays badly in Acrobat".

Patch from SaGS. His explanation is quoted below.

Part #1: pdfwrite fixes (gdevpdti.c, gdevpdte.c, gdevpdtt.h, gdevpdtt.c :

- Generalize pdfwrite computations for glyph widths and placement, 
  which currently assume an [s 0 0 s tx ty]-type original (= ignoring 
  changes made by makefont & similar) FontMatrix, to work with an 
  arbitrary matrix.

- Fix: the "wy" operand of "d0"/"d1" in Type 3 charproc streams must 
  be zero. Note: other parts of the code already consider wy == 0, 
  and don't need to be changed.

- Remove font_orig_scale() and pdf_font3_scale(), which are not used 
  anymore. Their simple presence is a sign of the assumption that 
  font matrices are simple scalings.

- Minor: remove a dead variable ("int code = 0; ... return code;"). 
  This variable is never changed, because there's another "int code" 
  inside the "for", but it is confusing and takes a lot of research 
  to figure out the behaviour is OK and no usefull error code is 
  lost (it's the 2nd time I stumble against this...)

Notes:
  - All non-Adobe PDF viewers that I tested (Evince/ Fedora 7, 
    Foxit Reader 2.0/ Windows, Jaws PDF Editor 3.5/ Windows, and 
    Ghostscript -r8204) have problems with "weird" font matrices.
    The bug in ghostscript is addressed below.
  - I do have an alternate patch, which "normalises" the 
    FontMatrix, for better viewers compatibility . But this method 
    cannot work when fonts are not embedded: cannot "normalize" 
    something stored in an external file.

 part #2: PDF interpreter fixes (pdf_font.ps, pdf_ops.ps) :

- Force the "wy" parameter of "d0", not only of "d1", in Type 3 
  charproc streams to 0. Comment changed to suggest this is an action 
  is expected to be done as part of enforcing the metrics stored in 
  the PDF (which always imply wy == 0), and not some strange 
  behaviour in Reader.

- A detail in PDF1.7 Ref 5.3.3 "Text Space Details" states that "wy" 
  (or "wx" in WMode 1) must be forced to 0 in PDF text space too, not 
  only in PDF glyph space. To implement this with non-[s 0 0 s tx ty] 
  font matrices, a different method is used: decode "show" strings 
  and extract glyph widths with "cshow", put these into an array, 
  then render the text with "x/yshow".
  - since "wy/x" = 0 in glyph space, the code does not need to use 
    "idtransform", a "div" by "FontMatrix.xx" is sufficient;
  - use a trick (see comment in code) when "FontMatrix.xx" = 0.

CIDFonts are not changed. Those with a "straight" matrix continue to 
work, but there's no improvement if they have a weird "/FontMatrix". 
I think this would require a radical change, and the result will be 
much slower than it is now.

part #3: supplemental ps2write fixes (in opdfread.ps).

- opdfread.ps assumed the FontMatrix is a simple scaling by 0.001;
  generalize the computations to work with an arbitrary matrix.

- Implement a detail of PDF1.7 Ref 5.3.3 "Text Space Details" (nuking 
  the "wy" in text space) if a non-[s 0 0 s tx ty] "/FontMatrix". 
  Similar to the change in the main PDF interpreter, but shorter 
  because opdfread.ps does not handle vertical writing or CID fonts. 

Also "wy" in "d0"/"d1" is already 0 (see patch for pdfwrite), so 
needs no adjustment.

[lib/pdf_font.ps src/gdevpdtt.c src/gdevpdte.c lib/opdfread.ps src/gdevpdti.c src/gdevpdtt.h lib/pdf_ops.ps]

2007-08-29T17:36:36.852840Z Igor Melichev

Fix (TT font handling) : pdfwrite recieved meanless font names.

DETAILS :

Bug 688006 "Font names used with pdfwrite are strange with GS, OK with Adobe Distiller".

This is a continuation for the Revision 5862 change 
made on Wed Apr 20 20:05:41 2005 UTC (2 years, 4 months ago) by ray.

Thanks to Edward for a code sample for accounting font style string.

1. (zbfont.c) When a Postscript file is generated with Adobe printer driver for Windows,
the old code (sinse Revision 5862) extracts OrigFintName 
for building a meanful FontName.
This patch adds an use of OrigFontStyle as suggested by Edward,
so the FontName is created in the form "Arial,Bold".

2. (zfcid1.c) The old code sometimes dropped the good FontName in zbuildfont11 
due to an extra call to get_font_name. Few lines above
the function build_gs_TrueType_font creates the good font name
during an indirect call to sub_font_params, so the call to  
get_font_name is not necesary when OrigFontName presents.
However it is still necessary with regular FontType 11
because they have no FontName and sub_font_params
doesn't use CIDFontName.

3. (zfcid0.c) Applying the (2) change to FontType 9 as for symmetry.
We're tested it a few, but we have no untrivial examples
when a FontType 9 is embedded with OrigFontName.
Maybe (just guessing) ones could be obtained with installing
Adobe Type Library and printing with Adobe printer driver.

4. After doing all above, we unexpectedly detected a regression 
with comparefiles/korea.ps : all Korean glyphs were replaced with
hollow boxes. Analyzing it we found that the document defines a 
composite font with to CIDFontType 2 descendent,
which both appears to be same font. In same time,
the CMap supplies different CIDs for those 2
descendents for a half of code space. While the old code
used meanless unique font names, those 2 descendents
were converted to 2 PDF fonts. When we switched to the meanful name,
which of course is same for both descendents,
pdfwrite tries to merge the descendents.
However doing so it assumed same character mapping
for both descendents.

To fix this problem more changes are done to pdfwrite :

4.1. (gdevpdtf.h) The font descriptor of a type 0 font now stores font_index,
which is the index of its descendent font in the DescendentFonts array
of the source Type 0 font. This happens because in PDF type 0 fonts
always have a single descendent.

4.2. (gdevpdtf.c) Added an initialization for the new field.

4.2. (gdevpdtt.c, gdevpdtt.h) pdf_obtain_parent_type0_font_resource creates
unique type 0 fonts for each descendent in spite of same font name.

4.3 (gdevpdtc.c) pdf_obtain_parent_type0_font_resource needs 
font index as a new argument.

4.4. (gdevpdtt.c) pdf_find_type0_font_resource also takes the new parameter.

With Korea.ps we create 2 font subsets where a single font
would be enough. An optimization may be done with a dynamic
check for encoding conflicts rather than creating another font
for each font index of the CMap. Delaying it for better times.

[src/zfcid0.c src/gdevpdtc.c src/zfcid1.c src/gdevpdtt.c src/zbfont.c src/gdevpdtf.c src/gdevpdtt.h src/gdevpdtf.h]

2007-08-29T09:42:15.384249Z Igor Melichev

Fix (TT font handler) : Place thr True Type interpreter and its data into stable memory (continued 2).

DETAILS :

Bug 688429 "Crash on vmreclaim".

The revision 8209 change is incorrect 
because it effectively frees a memory allocator instance.
Thanks to Henry for pointing this out.

This is the second attempt to fix that...

[src/gxttfb.c]

2007-08-29T09:36:29.695665Z Igor Melichev

Fix (TT font handler) : Place thr True Type interpreter and its data into stable memory (continued).

DETAILS :

Bug 688429 "Crash on vmreclaim".

The revision 8209 change is incorrect 
because it effectively frees a memory allocator instance.
Thanks to Henry for pointing this out.

[src/gxttfb.c]

2007-08-29T07:09:01.667008Z Igor Melichev

Fix (font rendering) : CIDFontType 9 missed PaintType.

DETAILS :

Bug 687970 "PaintType and StrokeWidth ignored with CIDFonts".

To make a decision about filling or stroking,
the old code uses PaintType of the current font,
However with CIDFont 9 it is a Type 1 subsidiary,
which has no PaintType.

The patch implements the 'or' logic for the PaintType of the root font
and the PaintType of the current font. We believe it should 
correctly handle cases when PaintType 2 is set to
a root font or to its descendent. However we have not enough 
practical test cases to test all varuiants.

Particularly, we would like to test a Type 0 font with
2 descendents, each of which is CIDFontType 9
and they have didfferent PaintType.
In such case this patch may need a further improvement.

The desision about filling or stroking a character is done in type1exec_bbox
and in nobbox_finish. The patch also passes a pointer to gs_text_enum_t instance 
to type1exec_bbox to provide the data for the decision.

[src/zfcid0.c src/zchar1.c]

2007-08-28T16:18:27.199037Z Igor Melichev

Fix (pdfwrite) : Uninitialized defaultWidthXwhile while converting a Type 1 font into Type 2.

DETAILS :

Bug 689406 "Valgrind: Uninitialised defaultWidthX in psf_convert_type1_to_type2()".

The last patch appears incomplete and doesn't compile. 
Fixing now.

[src/gdevpsf2.c src/gdevpsf.h src/gdevpsfx.c]

2007-08-28T16:06:12.766158Z Igor Melichev

Fix (pdfwrite) : Uninitialized defaultWidthXwhile while converting a Type 1 font into Type 2.

DETAILS :

Bug 689406 "Valgrind: Uninitialised defaultWidthX in psf_convert_type1_to_type2()".

Thanks to Alex for the problem localization and for the suggested patch.
This change is equivalent to Alex's patch
expect the better documentation. 
See comment in code.

The old code accessed pfont->data.defaultWidthX,
which is never used or initialized elsewhere with a Type 1 font,
because defaultWidthX is a Type 2 feature.

[src/gdevpsfx.c]

2007-08-28T06:34:08.453844Z Ray Johnston

Correct obvious typo in default rgb to cmyk color mapping. It makes
no sense to use the 'g' component to calculate the 'k' for black
generation and undercolorremoval.

[src/gxcmap.c]

2007-08-27T20:44:27.984183Z Igor Melichev

Fix (TT font handler) : Place the True Type interpreter and its data into stable memory.

DETAILS :

Bug 688429 "Crash on vmreclaim".

With the old code gx_ttfReader and ttfInterpreter instances
were prematurely released by 'restore' while 
gs_font_dir and cached_fm_pair instances contain
references to them. Since TT interpreter is a global singleton,
we're safe to store it in stable memory.

[src/gxttfb.c src/gxccman.c]

2007-08-27T01:16:47.532710Z Alex Cherepanov

Change the order of include files to define a macro before it's used.
The undefined macro in the old code passed as a function declaration.

[src/gxshade1.c]

2007-08-27T00:53:59.301536Z Alex Cherepanov

Add HP-UX to the long list of systems that need both time.h and sys/time.h

[src/time_.h]

2007-08-26T23:32:21.633797Z Alex Cherepanov

Cast the pointers to the same type because aC++ compiler cannot compare
pointers of different types.

[contrib/japanese/gdevmjc.c]

2007-08-26T23:24:57.663909Z Alex Cherepanov

Fix a typo in a contributed driver for HP color printers detected by aC++
compiler. Assuming that pointers compare as unsigned values, the fix doesn't
have any run-time effects.

[contrib/gdevcd8.c]

2007-08-23T18:00:19.425565Z Alex Cherepanov

When the same name maps to more than one glyph change the name.
Don't treat /.notdef names specially because glyphs corresponding
to /.notdef names can look different. Bug 689408, customer 770.

DIFFERENCE:
None

[lib/gs_ttf.ps]

2007-08-22T06:38:36.487276Z Suzuki Toshiya

Fix (TT fonts) : Ignore invalid entries in loca table.

DETAILS : 

Some problematic TrueType fonts have loca table that
the offset to a data in glyf table is larger than
the size of glyf table. In previous implementation
since trunk revision 5707 (ghostscript-8.57), when
such invalid entry is found, the font loading procedure
is immediately aborted and invalid font error is
returned. To continue the problematic TrueType object,
the invalid entries of loca tables now are ignored and
the font loading procedure is continued. If all entries
are invalid, the invalid font error is returned.

After the sorting of loca table entries by their values,
the invalid entries with too large offsets are collected
in the end of the sorted loca entries (psortary[]).
By this patch, the sorted loca entries are scanned from
from the end to the beginning, and the number of valid
entry is counted (num_valid_loca_elm). By this number,
the invalid loca entries are initialized to have null
glyph (the data size of glyph is set to 0).

By this patch, bug 689347 is fixed.

[src/gstype42.c]

2007-08-21T22:26:58.681438Z Ralph Giles

Correct more changelog substitution errors. Bug 689388.

[doc/History8.htm doc/Details8.htm]

2007-08-20T17:15:22.306956Z Alex Cherepanov

Fix command list-based devices on 64-bit platforms. Ghostscript always writes
int values to the command list but old code interpreted the bit pattern as a
long int, causing conversion of the negative values to large positive ones.
Bug 689353.

[src/gxclrast.c]

2007-08-20T17:10:51.151066Z Ray Johnston

Use the color lookup cache in wtsimdi_contone_get_bits_rectangle.
This results in a 6% overall performance improvement on the 12
performance test files, and up to a 38% improvement on WW2KA122.prn
Also clean up the MSVC and gcc warnings.  Customer #951.

DETAILS:

There is a note about the allocation of cmyk_buffer relying on
the alignment when using gs_malloc. The note also describes the
method to remove this reliance on the alignment assumption.

[src/gdevwts.c]

2007-08-17T18:50:33.373530Z Ray Johnston

Fix stdint.h related problems with the Cygwin build (gcc 3.4.4)

DETAILS:

There was a workaround for an obsolete version of Cygwin tools that had
u_int32_t (and other types) instead of uint32_t that is standard on linux
and Cygwin stdint.h now. These changes were needed for the PCL, XPS and
language_switch builds -- the gs build worked thanks to autoconf.

[src/unix-gcc.mak src/stdint_.h]

2007-08-17T13:58:12.668319Z Alex Cherepanov

Fully initialize pdf_resource_t object allocated in pdf_alloc_aside()
to avoid a Valgrind warning. Bug 688907.

[src/gdevpdfu.c]

2007-08-17T13:02:19.679286Z Alex Cherepanov

Add missing initialization of txy_fixed_valid field. Since the fixed
coordinates are valid, the patch eliminates possible re-calculation of the
fixed coordinates but doesn't affect the end result. Bug 688914.

[src/gdevpdfv.c]

2007-08-17T04:49:22.864920Z Ray Johnston

This set of changes is an example for users or Artifex customers
that want to intercept the color spaces and perform their own
color space conversion for the CIEBased or ICCBased color spaces,
converting all of these spaces to the PostScript color management
link space "CIE XYZ". There were changes needed to implement this
that transcended the original custom color callback scheme, but
the approach taken is intended to minimize changes to the color
space processing.

Artifex customer #330

DETAILS:

Rather than rely on the hack in gx_cie_to_xyz_alloc that sets the
pis->cie_render to ~0, we establish a separate boolean for this,
cie_to_xyz which indicates that we don't need a CRD (gxistate.h,
gsistate.c, gsciemap.c, gscie.c). Note that the gx_cie_to_xyz_alloc
function is also used in the lab_range function in gdevpdfk.c
to construct an L*a*b* ICC conversion space for the pdfwrite
device.

The 'pclient_color_space_data' is now handled in the ENUM and
RELOC procedures for the gs_color_space base structure shared
by all color spaces (gscspace.c). A side effect of this is that
the pclient_color_space_data structure MUST be allocated with
appropriate GC structure calls an with an appropriate GC type
of macro to identify the structure for the GC and establish
the ENUM and RELOC hooks. This was needed to allow a gs_imager_state
structure to be allocated for the CIE color spaces and to have
both structures to be 'known' to the GC logic.

The CIE_LOAD_CACHE_BODY macro and the gx_install_cie_abc function
are now exported in gscie.h rather than local to gscie.c so that
gsncdummy.c and other custom callback clients can use them.

Finally, the gsncdummy.c module now includes example handling
that allow the graphics library to convert colors to XYZ if
the original color space was one of the CIEBased or ICCBased
spaces. Since CIE XYZ to L*a*b* is a direct conversion, this
allows clients to work with device independent color.

The conversion from XYZ to ICC L*a*b* code exists in gdevpdfk.c
in the function xyz_to_lab() which might be useful enough to
export in the future. For the short term clients can 'clone'
this small function if needed into their own color callback
processing.

Note that -dUseCIEColor (or << /UseCIEColor true >> setpagedevice
PostScript sequence) will mean that all Device* colorspaces also
get mapped through the Default* colorspaces to XYZ (DeviceGray,
DeviceRGB and DeviceCMYK).

[src/gxistate.h src/gscie.h src/gsistate.c src/gsncdummy.c src/gsciemap.c src/gscspace.c src/gscie.c]

2007-08-14T21:28:55.383671Z Ralph Giles

Revert r8187, which is part of the CJKV patch set reverted in r8190.

[src/int.mak]

2007-08-14T20:48:29.233978Z Till Kamppeter

Removed CJK patches.

[examples/cjk src/zchar42.c lib/gs_cidtt.ps src/gxfont42.h src/gstype42.c src/unixinst.mak src/zchar1.c lib/cjkv lib/gs_init.ps]

2007-08-14T18:53:48.875152Z Ralph Giles

Throw an diagnostic error if the wts_plane_* halftone files cannot
be opened. Propagate the error and clean up properly to avoid a 
segfault.

Also #ifdef DEBUG protects some debug printouts to reduce noise.

[src/gdevwts.c src/gdevimdi.c]

2007-08-14T16:18:28.564745Z Ralph Giles

Change the path to the icc link profile to the current working 
directory, the same path used for the wts_* halftone files and
for link.icc in gdevimdi.c. Motivated by simplifying running
the device in regression testing.

[src/gdevwts.c]

2007-08-13T17:07:58.742285Z Ralph Giles

Add the library files from the cjkv to the romfs file list. This 
restores executability of the build with COMPILE_INITS=1 which
was broken by r8185.

[src/int.mak]

2007-08-13T16:00:16.465824Z Till Kamppeter

Fixed DESTDIR support in Koji Otani's CJK patches

[src/unixinst.mak]

2007-08-13T10:08:05.772194Z Till Kamppeter

Added CJK patches from Koji Otani

[src/zchar42.c examples/cjk lib/gs_cidtt.ps src/gxfont42.h src/gstype42.c lib/cjkv/cjkcidcm.ps lib/cjkv/baseutil.ps src/zchar1.c lib/cjkv/cjkvttcf.ps examples/cjk/all_ac1.ps lib/cjkv lib/cjkv/cjkvinit.ps examples/cjk/all_ag1.ps examples/cjk/iso2022.ps examples/cjk/all_aj1.ps examples/cjk/gscjk_ac.ps examples/cjk/all_ak1.ps examples/cjk/all_aj2.ps lib/cjkv/tt11util.ps lib/cjkv/cjkfnmap.ps examples/cjk/gscjk_ag.ps lib/cjkv/tt42util.ps src/unixinst.mak examples/cjk/gscjk_aj.ps examples/cjk/gscjk_ak.ps examples/cjk/article9.ps lib/gs_init.ps]

2007-08-12T17:29:29.699921Z Alex Cherepanov

Use inline and intristic functions to improve the speed of CIE cache set-up.
Bug 689153, customer 850.

[src/gscie.h src/gscie.c]

2007-08-11T03:57:31.402230Z Alex Cherepanov

Change stream keyword handling to accommodate yet another kind of a broken PDF.
Bug 689400, customer 580.

DETAILS:
Valid stream keyword can be followed by (\n) or (\r\n). Invalid PDF files
accepted by Acrobat Reader can insert blank characters or terminate the stream
with (\r). Old code tolerated ( \r) termination, but didn't tolerate ( \r\n).
New code assumes blank characters and (\r) termination at the same time are not
probable and tolerates ( \r\n) or (\r) but not ( \r).

[lib/pdf_base.ps]

2007-08-10T08:15:58.076010Z Henry Stiles

This code change should have been committed in tandem with the change
in revision 8055 (see 8055 log for details).

[src/gxclpath.c]

2007-08-09T18:12:59.257962Z Ray Johnston

Update the testing.cfg.example to match the current (after rev 7854) of
the regression scripts in toolbin/tests. The r7854 had included a
testing.cfg file instead of the example file (see comment for rev 7862).

DETAILS:

I don't really like the difficulty of changing the comparegs directory in
the current way gsconf.py processes the testing.cfg. IMHO, it would make
sense to allow for some of the higher level directory variables to be
used, simplifying changing it for testing from a particular gs checkout
that has been modified. Also having some of the other values able to
be relative to 'root' (for the comparefiles, database, etc.) would be
handy.

A task for later along with better documentation.

[toolbin/tests/testing.cfg.example]

2007-08-08T00:12:49.260263Z Timothy Osborn

Updating CMAP files as per bug report #689386

DETAILS:

See:

ftp://ftp.oreilly.com/pub/examples/nutshell/cjkv/adobe/00README

for more details.

[Resource/CMap/UniJIS2004-UTF16-V Resource/CMap/UniJIS2004-UTF32-H Resource/CMap/UniJIS2004-UTF8-V Resource/CMap/UniJIS2004-UTF16-H Resource/CMap/UniJIS2004-UTF8-H Resource/CMap/ETenms-B5-V Resource/CMap/ETenms-B5-H Resource/CMap/UniCNS-UTF32-H Resource/CMap/UniCNS-UTF16-H Resource/CMap/UniCNS-UTF8-H Resource/CMap/UniJISX02132004-UTF32-V Resource/CMap/UniJIS2004-UTF32-V Resource/CMap/UniJISX02132004-UTF32-H]

2007-08-07T00:40:18.162968Z Alex Cherepanov

Pacify MSVC 7 run time checks. Change the order of condition checking to avoid
returning an uninitialized value. The code is algorithmically equivalent,
except it doesn't assign anything instead of assigning an uninitialized value.
Bug 689387

[src/gdevpdfd.c]

2007-08-05T13:55:26.215718Z Igor Melichev

Fix (pdfwrite) : A wrong encoding of Metadata.

DETAILS :

Bug 689244 "Wrong encoding of title in metadata for PDF/A".

Thanks to mpsuzuki for preliminary analyzis.

1. See the documentation change.
2. gs_pdfwr.ps converts the specified name into a translation table.
   We believe that popolar encodings translate into single Unicode
   characters, so we don't implement Unicode compositions now.
   This may be a subject of further improvements. In this case
   the generated integer array should use a complex format
   for representing the translation table.
3. The translation table is passed to pdfwrite 
   as a new device parameter DSCEncodingToUnicode.
4. When it is specified, gdevpdfe.c performs the translation
   first into UTF-8, then into XML.
5. The new modules ConvertUTF.c, ConvertUTF.h are obtained from
   Unicode Inc.

[src/gdevpdfx.h src/ConvertUTF.c src/gdevpdfp.c doc/Ps2pdf.htm src/ConvertUTF.h src/gdevpdfe.c src/gdevpdfb.h src/devs.mak lib/gs_pdfwr.ps lib/gs_agl.ps]

2007-08-04T21:42:53.446406Z Alex Cherepanov

Change the order of tests to identify fonts with FID attribute that have been
both scaled and copied. Bug 689390

DETAILS:
Prior to this revision Ghostscript mis-recognized such fonts as scaled-only
in build_gs_font() and rejected with /invalidfont during font validation.

[src/zfont.c src/zbfont.c]

2007-08-04T14:30:04.276917Z Alex Cherepanov

Take rendering intent type from the /Intent key of the CRD created by Adobe
ProcSet "Adobe_AGM_Core 2.0 0" and pass it to the graphic state. Bug 689379

[lib/gs_lev2.ps lib/pdf_ops.ps lib/gs_init.ps]

2007-08-03T16:29:44.050173Z Timothy Osborn

Fix for seg fault caused by undersized buffer as reported in bug report #687397

DETAILS:

Although the patch submitted by the reporter did appear to fix the problem,
it was more masking it than fixing it. While the analysis of the problem
being that ss->Items was too small was correct, the real cause was a rounding
problem in siscale.c/contrib_pixels(). The problem did not happen on my Mac,
but was reproduced up on peeves because of differnces in the way the two
systems perform rounding.

[src/siscale.c]

2007-08-03T15:46:03.840774Z Ralph Giles

Correct a substitution script error in the change logs.

[doc/Changes.htm doc/History8.htm doc/Details8.htm doc/Details.htm]

2007-08-02T08:53:09.078741Z Igor Melichev

Fix (transparency in clist) : Write transparent paths and images to clist as high level objcts.

DETAILS :

Bug 689186 "PDF segfaults or exits with no output".

With the test case the old code creates a 2.5Gb clist file, 
because it transformes transparent paths and images into rectangles.
The new code writes them as high level objects,
so that the clist file reduces to 477Mb.

1. (gdevp14.c) The old code appears to provide all necessary
methods for writing paths and images to clist as high level objects,
but doesn't call them. To activate them we simply replace default implementations
with forwarding methods in pdf14_clist_*_device.

2. (gdevp14.c) The old code sets the lop_pdf14 flag to
the clist reader's imager state. Particularly
it may be set when calling p14dev->pdf14_procs->put_image.
It causes gx_image_enum_begin to fail,
and the image silently dissappers from the output.
We fixed it with resetting the flag immediately before
calling p14dev->pdf14_procs->put_image.
A better way would be to synchronize log_op
in clist_create_compositor, but we don't like to
write it to all bands as other compoitor commands do.

3. (gdevp14.h, gdevp14.c) New fields inserted into pdf14_device_t
to provide a synchronization of encode_color, decode_color, get_color_mapping_procs,
get_color_comp_index with changing color_info. Debugged with pkmraw -r300 Bug688631.pdf .
Without them the 1bpc color conversions 
were called from pdf14_cmap_cmyk_direct with an 8bpc color,
causing an almost white page instead blue axial and radial shadings.

4. (gdevm4.c) The old code defines a wrong color_info for mem_mapped4_device.
It defines 3 components instead the correct value 4 (3 colored and 1 gray).

5. (gdevp14.c) During the clist playback the new code does not change color_info
for the clist writer (p14dev->target->color_info). We marked this change
with the comment :
/* Disabled because *p14dev has no forwarding methods during the clist playback. */
We ise #if 0 because we're not sure why the old code does so.
We suspect it was done by a mistake and has no any effect.
#if 0 will keep it for a while.

More possible optimization :

1. Use pdf14_buf::bbox when back dropping a transparency buffer.
2. Use pdf14_buf::rect to restrict bands which set up the transparency compositor.
   Now it is written to all bands.
3. Write text to clist as high level object.

[src/lib.mak src/gdevp14.h src/gdevm4.c src/gdevp14.c]

2007-08-02T04:08:11.471770Z Alex Cherepanov

Pacify Valgrind - initialise both operands of the product. Valgrind considers
a product of 0 and an uninitialized value to be uninitialized. Bug 689384.

[src/gximage3.c]

2007-08-02T01:22:14.242094Z Ralph Giles

Update the interpreter library version number to match the one in 
version.mak. The previous commit just improved the comments.

[lib/gs_init.ps]

2007-08-01T23:56:58.305050Z Ralph Giles

Bump the revision number post release.

[doc/News.htm lib/gs_init.ps src/gscdef.c src/version.mak]

2007-08-01T22:38:01.441981Z Ralph Giles

Correct some cut-and-paste typos in the change log update.

[doc/Changes.htm doc/History8.htm]

2007-08-01T22:10:56.427930Z Ralph Giles

Update change logs and the open bug list or final release.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

Version 8.60 (2007-08-01)

This is a new stable release of the Ghostscript codebase. The most significant change is the merge of drivers and other patches from ESP Ghostscript. This version of Ghostscript work with CUPS and is intended to be a replacement for the Easy Software fork going forward. We extend a special thanks to Till Kamppeter and Mike Sweet for making this happen.

In addition to CUPS support, the ESP merge includes a number of other notable changes. The contrib directory of the GPL Ghostscript source tree now includes a much larger complement of drivers. These are not maintained by Artifex Software, Inc. and are not included in the commercially licensed version, but are of great assistance maintaining support for older printers in Linux distribution. The X11 device is now modularized on Linux and Solaris systems when built with GNU ld, meaning this device is compiled as a separate shared object which can be optionally loaded at runtime, allowing the main binary to work on systems without X client support installed.

This release also includes numerous important bug fixes over the previous stable version, as well as improvements to performance, memory footprint, shading and image handling. We recommend upgrading to all users.

The following bugs were open at the time of release:

226943, 430175, 465936, 493348, 535932, 578865, 610478, 614298, 626295, 686747, 686853, 686865, 687011, 687039, 687084, 687095, 687108, 687146, 687193, 687196, 687257, 687271, 687280, 687295, 687297, 687303, 687327, 687342, 687345, 687346, 687375, 687397, 687414, 687475, 687492, 687514, 687520, 687531, 687536, 687559, 687561, 687593, 687595, 687608, 687630, 687650, 687666, 687674, 687677, 687695, 687697, 687702, 687715, 687721, 687728, 687729, 687731, 687775, 687780, 687782, 687793, 687796, 687805, 687814, 687844, 687850, 687887, 687903, 687904, 687907, 687915, 687931, 687950, 687957, 687970, 687974, 687981, 687983, 687988, 688006, 688007, 688022, 688024, 688026, 688032, 688035, 688036, 688042, 688058, 688061, 688064, 688066, 688075, 688081, 688095, 688129, 688130, 688134, 688151, 688152, 688159, 688166, 688184, 688187, 688200, 688203, 688204, 688207, 688210, 688215, 688227, 688239, 688243, 688267, 688269, 688280, 688282, 688283, 688288, 688312, 688317, 688318, 688320, 688333, 688337, 688342, 688358, 688360, 688361, 688363, 688372, 688375, 688378, 688386, 688387, 688389, 688395, 688413, 688427, 688428, 688429, 688434, 688436, 688437, 688440, 688446, 688448, 688468, 688473, 688474, 688475, 688483, 688490, 688495, 688500, 688515, 688517, 688526, 688528, 688533, 688539, 688540, 688542, 688543, 688557, 688565, 688573, 688580, 688581, 688588, 688598, 688601, 688604, 688605, 688610, 688616, 688617, 688619, 688626, 688627, 688633, 688634, 688636, 688637, 688638, 688643, 688646, 688647, 688651, 688653, 688655, 688673, 688674, 688683, 688696, 688697, 688699, 688708, 688709, 688710, 688711, 688714, 688717, 688728, 688731, 688734, 688736, 688739, 688757, 688762, 688770, 688774, 688777, 688778, 688783, 688796, 688797, 688806, 688807, 688811, 688813, 688815, 688818, 688829, 688830, 688834, 688843, 688845, 688846, 688871, 688872, 688876, 688899, 688903, 688904, 688907, 688908, 688909, 688914, 688915, 688916, 688917, 688918, 688919, 688923, 688926, 688928, 688933, 688940, 688942, 688943, 688945, 688949, 688952, 688958, 688969, 688970, 688976, 688978, 688979, 688981, 688983, 688986, 688990, 688992, 688994, 688999, 689003, 689011, 689013, 689014, 689022, 689025, 689028, 689031, 689032, 689036, 689040, 689044, 689046, 689048, 689050, 689053, 689055, 689057, 689058, 689060, 689065, 689068, 689070, 689076, 689077, 689078, 689080, 689081, 689085, 689090, 689092, 689093, 689094, 689098, 689101, 689103, 689104, 689106, 689107, 689111, 689114, 689115, 689116, 689117, 689127, 689128, 689129, 689130, 689132, 689133, 689136, 689137, 689138, 689145, 689146, 689148, 689150, 689153, 689154, 689155, 689159, 689161, 689164, 689167, 689169, 689172, 689174, 689175, 689181, 689182, 689184, 689186, 689188, 689195, 689198, 689199, 689206, 689209, 689210, 689212, 689222, 689224, 689230, 689232, 689236, 689241, 689242, 689244, 689246, 689247, 689248, 689249, 689252, 689253, 689256, 689264, 689265, 689266, 689267, 689273, 689278, 689279, 689280, 689281, 689282, 689283, 689289, 689290, 689291, 689292, 689294, 689295, 689298, 689302, 689304, 689305, 689306, 689308, 689310, 689313, 689316, 689326, 689327, 689331, 689333, 689334, 689335, 689338, 689339, 689340, 689341, 689343, 689347, 689349, 689350, 689351, 689352, 689353, 689354, 689356, 689358, 689359, 689361, 689362, 689363, 689364, 689365, 689367, 689368, 689369, 689370, 689372, 689373, 689374, 689375, 689376, 689378, 689379, 689380, 689381, 689382, 689384, 689385, 689386.

Incompatible changes

The default device on unix-oriented builds has temporarily switched to the bbox device, and is not the x11 device as in the past. The means that running gs from the commandline with no options will no longer display a file. Specify -sDEVICE=x11alpha instead. The change is a side effect of the X11 modularization patch, and will be remedied in a future release.

Changelog

2007-08-01T21:20:57.253476Z Ray Johnston

Fix problem seen with stcolor device where the get_color_mapping_procs
device proc was NULL, causing SEGV. Bug #689371.

DETAILS:

The fix was local to gdevstc.c. The other modules were changed to
add protection in case other devices (such as all of the new devices
in contrib) don't manage to change the get_color_mapping_procs from
the usual default of NULL in the device structure. Rather than
dprintf or error messages that may be supressed with #if DEBUG.
I elected to use eprintf.

Note that the get_color_mapping_procs is usually set up by gdevdflt
gx_device_fill_in_procs, but there are several cases where we don't
know what to do, so we set the gx_error_get_color_mapping_procs.

The detection in gs_fillpage will usually result in a single error
message then we return gs_error_Fatal (-100).

[src/gdevdflt.c src/gdevstc.c src/gxcmap.c src/gspaint.c]

2007-08-01T19:18:12.034589Z Ralph Giles

Update release date and product name for final release.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm src/gscdef.c doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Testing.htm doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2007-08-01T17:19:50.181574Z Ray Johnston

Fix for gv hang, where an application sends (less than 1023 bytes)
PostScript and expects a response. AppleTalk PAP and some other
interactive viewer front ends may run into this. Bug #689237.

DETAILS:

The autosense is still sort of fragile in that we only process
PostScript immediately without waiting for the .peekstring of
1023 bytes to complete if it begins with "%!" or "%%". The
check for "%%" is needed for gv, conventionally "%!" is more
widely used. Note this really only affects applications using
gs as a process getting data from stdin and expecting immediate
action (response or other processing).

Also note that the %! or %% is only looked for as the first
two characters so that the presence of this in garbage before
an actual PDF won't cause confusion.

[lib/pdf_main.ps]

2007-08-01T04:10:13.989117Z Alex Cherepanov

Fix a misleading typo in an error message: s/UseCUEColor/UseCIEColor/

[src/gdevpdfp.c]

2007-08-01T04:01:06.081994Z Alex Cherepanov

Remove inappropriate PNG_CONST qualifier from a few libpng arrays, where it
adds 2nd const qualifier, which is rejected by MSVC 6. Bug 689383.

[libpng/pngtrans.c libpng/pngerror.c]

2007-07-31T14:19:45.536400Z Alex Cherepanov

Use a correct name for the absolute colorimetric rendering intent. Change the
encoding of the rendering intents in the graphic state to use ICC numbers
from Table 18 (section 6.1.11) instead of the PDF order to reduce re-coding
and confusion. Bug 689377.

[src/gxistate.h lib/pdf_ops.ps src/gsstate.c src/zcolor3.c]

2007-07-31T03:31:13.074828Z Ralph Giles

Update changelogs for the release candidate.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

2007-07-30T20:13:56.963379Z Ralph Giles

Update the libpng version in the top level makefiles to match the new 
1.2.18 source.

[src/bcwin32.mak src/openvms.mak src/ugcclib.mak src/macosx.mak src/watcw32.mak src/dvx-gcc.mak src/msvc32.mak src/unix-gcc.mak src/unixansi.mak src/macos-mcp.mak src/msvclib.mak src/all-arch.mak src/os2.mak src/watclib.mak]

2007-07-30T20:10:59.397769Z Ralph Giles

Include the libpng 1.2.18 source.

[libpng]

2007-07-30T20:09:22.151026Z Ralph Giles

Remove the old included libpng-1.2.16 to make way for the newer release.
This revision will not build!

[libpng]

2007-07-30T20:02:41.610054Z Ralph Giles

Update the release notes for the upcoming release.

[doc/News.htm src/version.mak]

2007-07-29T16:11:45.078740Z Alex Cherepanov

Ignore named actions in PDF link annotations that refer to a page outside
of the document page range. Bug 689286.

[lib/pdf_main.ps]

2007-07-28T16:13:12.033906Z Alex Cherepanov

Fix a bug in the "LastPage" named action handler that pushed an extra operand
to the stack causing "/rangecheck in pdfmark". Thanks to Heiko Oberdiek for
the patch. Bug 688311.

[lib/pdf_main.ps]

2007-07-27T20:14:35.951213Z Ray Johnston

Apply a long pending patch that only affects an ancient 'alphaimage'
operator (Next display PostScript extension). Bug #592160.

DETAILS:

The bug report didn't include a test file, but reading the spec on
this operator found at:

http://objc.toodarkpark.net/AppKit/Functions/PSOperators.html

it seems that the number of components provided does not account
for the alpha channel. The relevant excerpt is:

Synopsis: pixelswide pixelshigh bits/sample matrix datasrc0 [...datasrcn] multiproc ncolors alphaimage -

Renders an image whose samples include an alpha component. This
operator is similar to the standard colorimage operator. However,
note the following:

    * When supplying the data components, alpha is always given
      last-either as the last data source (datasrcn) if the data
      is given in separate vectors, or as the last element in a
      set of interleaved data.

    * The ncolors operand doesn't account for alpha -- the
      value of ncolors is the number of color components only.

This final note is the justification for the patch.

[src/gxipixel.c]

2007-07-27T04:27:36.603967Z Alex Cherepanov

Add a missing member to the initialiser macro for the device structure of
japanese laser printer vector PDLs. Fix a FPE crash. Bug 689366.

[contrib/lips4/gdevlprn.h]

2007-07-25T05:12:45.877915Z Ray Johnston

Revert patch for rev 7904 which caused regressions (bug 689215).
The fix for this will be committed in a following patch that
fixes 688543 and 689364. Fixes bug 689215.

DETAILS:

The root of the problem is that the filled/stroked areas are
too large (from the fill_adjust value). Unfortunately changing
this to fix these problems causes MANY differences that need
to be examined. Initial examination shows many PROGRESSIONS,
i.e., we are closer to Adobe and from 200 files examined so
far, has not caused dropout (which is consistent with the
analysis).

[src/gdevp14.c]

2007-07-24T22:29:24.445810Z Till Kamppeter

Removed duplicate usage of DESTDIR in cups/cups.mak

[cups/cups.mak]

2007-07-24T22:23:34.891503Z Till Kamppeter

Fixed installation of data files from the contrib/ directory

[src/Makefile.in src/configure.ac]

2007-07-24T21:18:53.099055Z Ray Johnston

Fix for the clip mask of images being too wide for the fixed size
buffer. New size wide enough for 54 inches at 2400 dpi. Problem
seen at 600 dpi with AC405122 from the PS ATS for customer #951.

[src/gxmclip.h]

2007-07-24T20:02:20.813265Z Igor Melichev

Fix (shadings) : Decomposition limit could be too small.

DETAILS :

Bug 689225 "Regression: major differences in 470-01.ps in block 470-03".

This patch improves the tolerance of the shading code to 
a wrong device resolution, which can apparently happen 
when installing a clipper device. Thus is closes a symptom,
but the bottom of the problem is left unfixed.
We do so due to incoming scheduled release.
We opened a separate bug 689365 about a wronmg HWResolution of clipper device.

[src/gxshade6.c]

2007-07-17T09:55:56.457439Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 8).

DETAILS :

This fixes (some) gcc warnings in the recently added code (part 2).

[src/lib.mak src/gxclrast.c src/gdevpdfi.c src/gxshade6.c src/gxclpath.c src/gxclrect.c]

2007-07-16T21:35:48.939836Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 6).

DETAILS :

This fixes (some) gcc warnings in the recently added code.

[src/gxclrect.c]

2007-07-16T21:24:42.764396Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 6).

DETAILS :

This is an initial commit for decomposition of linear color triangles
that the target device can't handle while a clist playback.

The new code is not called with practical cases
because currently we have no devices 
with an intrivial implementation of fill_linear_color_triangle.
We commit this code for future if someone will want
to implement that function in hardware with a smaller number of bits.

To force an execution of the new code
one can change this switch in gxclrast.c :

	if 1 /* Disable to debug gx_fill_triangle_small. */

We debugged the new code with setting this switch to 0.
In this case the decomposition code starts, and calls 
fill_linear_color_triangle again with same arguments
(except converting frac31 colors to 'float', 
rather it doesn't miss precision with comparefiles).
This test works fine with comparefiles.
If the device method would request a further decomposition,
an earlier debugged code works, so we didn't test it now
(Testing it with available implementations would require an additional effort
for rejecting regular triangles by the target device).

For more details see comments in code.

Note the clist playback now calls gxshade6.c .

[src/gxshade4.h src/lib.mak src/gxclrast.c src/gxshade6.c src/gxdevcli.h]

2007-07-16T17:39:09.809376Z Ray Johnston

Prevent potential (although unlikely) divide by zero.

[src/gximag3x.c]

2007-07-16T17:25:30.726967Z Ray Johnston

Fix a divide by zero that would show up on linux, but not cygwin.
Seen with 001-01.ps to the x11 device.

[src/gdevmem.c]

2007-07-16T17:06:58.964025Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 5).

DETAILS :

This change is algorithmically equivalent.
It provides methods for decomposition of triangles written to clist.
The purpose is to fix possible gs_error_unregistered in gxclrast.c ln 1498.
The fix itself will be done separately.

[src/gxshade4.h src/gxshade6.c]

2007-07-16T16:58:11.366089Z Alex Cherepanov

Make failed dictionary look-up return /undefined instead of /dictfull.
Bug 689360

[src/idict.c src/zfcid1.c]

2007-07-15T17:27:07.515793Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 4).

DETAILS :

Provide a better compression when writing frac31 values to clist.
The new method is based on fact that fractional color values have many zeros in lower bits.

[src/gxcldev.h src/gxclrast.c src/gxclrect.c src/gxclutil.c]

2007-07-14T19:18:42.392348Z Henry Stiles

Changes from Neil Muller to support tumble duplex in several deskjet
printers (see 687978).  We have done no testing of these changes.

[src/gdevdjet.c src/gdevdljm.c src/gdevdljm.h contrib/gdevhl12.c]

2007-07-13T18:48:05.145075Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 3).

DETAILS :

1. Use fa->clip for a better Y-range for computing which bands are covered with fill_linear_color_triangle.

2. Provide a right raster op for linear color methods. Currently this change isn't
important because shadings don't use untrivial raster ops.

[src/gxclrect.c]

2007-07-13T16:29:03.411589Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued 2).

DETAILS :

This fixes Comment #4 of Bug 689344 "Regression: cmyk output broken with banding".

The revision 8020 of gxfill.h doesn't account a case of pcpath==NULL
in gx_default_fill_path.
However the clist reader does such calls with halftoned colors.

[src/gxfill.c]

2007-07-13T12:07:29.877199Z Igor Melichev

Banding : Extend clist language with trapezoids, linear color trapezoids and linear color triangles (continued).

DETAILS :

This fixes the clist expansion problem for shadings.

The last patch was committed with a wrong revision of gxclrast.c,
which disabled some shading components for development purpose.

[src/gxclrast.c]

2007-07-13T01:10:56.469571Z Alex Cherepanov

Make PDF post-processing utilities tolerant to missing Length attribute in
the strean dictionary. Our PDF parser undefines incorrect Length attributes.

[lib/pdfwrite.ps]

2007-07-12T13:34:24.493291Z Alex Cherepanov

Add a few dummy system parameters for compatibility with Adobe products.
Bug 689272, customer 411.

[lib/gs_lev2.ps]

2007-07-11T21:17:39.855676Z Igor Melichev

Banding : Exten\d clist language with trapezoids, linear color trapezoids and linear color triangles.

DETAILS :

This fixes the clist expansion problem for shadings.

1. New functions clist_fill_linear_color_trapezoid, clist_fill_linear_color_triangle
   provide the writing of shading parts into clist
   without a further decomposition into rectangles.

2. gxclrast.c is enhanced with reading the data from 1.

3. gxfill.c needs a special interaction with the clipper device
   for passing the clipping path as a high level object.
   The new request pattern_manage__handles_clip_path
   checks whether the target device can handle a clipping path.
   The clist writer can, so the graphics library first sends the
   clipping path, and then decomposes the shading into
   trapezoids without installing a clipper device.
   Doing so because clipper device can't handle trapezoids.
   See comments in gxclpath.c, gxfill.c .

4. The clist reader installs a clipper device when processes
   trapezoids and linear color triangles. 
   The new flag clipper_dev_open controls that.

5. A new flag gx_device_clist_writer_s::cropping_by_path 
   controls an additional cropping of shading components,
   which fall outside the shading path's bands.
   See comment in gxclpath.c .

6. R_fill_rect_with_const_color is rewritten with linear color functions,
   because the old implementation creates a rectangle, which is not clipped with
   4,5. It gives an invisible slowdown for unbanded rasters.

There are few things, which need further improvements :

1. A better compression for frac31 values in clist. 
   Such values usually have many zeros in ending bits.

2. Crop bands with ybot, ytop, fa->ystart, fa->yend in
   clist_write_fill_trapezoid.

3. The clist reader must handle cases when linear color functions return 0.
   It must perform a decomposition of areas with calling
   appropriate parts of gxshade6.c . The current code returns error,
   which does not happen in practice.

[src/gxshade4.h src/lib.mak src/gxclist.c src/gxcldev.h src/gxclist.h src/gdevnfwd.c src/gxshade1.c src/gxfill.c src/gxclrast.c src/gxclread.c src/gxshade6.c src/gxclpath.c src/gxdevcli.h src/gxclrect.c]

2007-07-11T00:26:24.274026Z Ralph Giles

Replace to includes of the system stdlib.h for malloc() with malloc_.h. 
Bug 689320.

[src/gxwts.c src/fapi_ft.c]

2007-07-11T00:19:27.467323Z Ralph Giles

Document that we don't make use of the autoconf function tests, or 
implement any fallbacks.

[src/configure.ac]

2007-07-10T23:30:47.849258Z Ralph Giles

Complete support for DESTDIR in staged installs with the unix makefiles. 
Bug 689277.

[src/unix-dll.mak cups/cups.mak src/unixinst.mak]

2007-07-10T23:00:51.455586Z Ralph Giles

Remove unused and inappropriate ps interpreter includes from the windows
polling interface implementation.

[src/gp_mspol.c src/winlib.mak]

2007-07-10T17:14:09.247898Z Till Kamppeter

Fixed bug 689323: bjc600's gs_closedevice breaks get_page_device and causes NumCopies to barf

[src/gdevcdj.c]

2007-07-07T02:59:08.708092Z Alex Cherepanov

Add a shebang line to afmdiff.awk and use more portable option ( -3 ) to
request 3-column listing. Bug 688621.

[lib/afmdiff.awk]

2007-07-06T16:42:18.448176Z Alex Cherepanov

Explicitly bind setscreen, setcolorscreen, and sethalftone pseudo-operators.
When a pseudo-operator is redefined several times, the last definition is
bound in a final sweep over the systemdict but other definitions aren't.
Bug 689254, customer 661.

[lib/gs_dps2.ps lib/gs_ll3.ps]

2007-07-06T12:18:01.891965Z Igor Melichev

Fix : Restoring high level objects in clist.

DETAILS :

This patch is a part of the clist expansion problem.
With Henry's test foo4.ps it reduces the clist size in 10+ times.

The clist expansion problem appears to be caused by an old unintentional
change, which was done 3 years ago within the psdcmyk project.
The revision 5056 effectively disabled a big part of the clist language:
all high level objects (text, images, paths) were written to clist 
as lots of rectangles. Undoing it now because it is incorrect.
Note that this patch doesn't undo other parts of 5056 change.

With enabling high level objects the psdcmyk device becomes broken.
At least it has problems with text when rendering foo4.ps .
We'll open a separate bug about that. 

Rather this fix is a progression, it causes some regressions with
band devices due to other unknown problems.
There are single pixel differences with comparefiles,
which are not visible to users, but they are important
for regression testing. Since the clist size
is a highly important problem now, we commit this fix, 
and open a new bug about raster differences.

[src/gdevprn.c]

2007-07-06T06:50:15.857933Z Igor Melichev

Fix : Improving documentation for gxclpath.c .

DETAILS :

Bug 689317 "A wrong rendering of a path", Comment #3.

The revision 2948 change to gxclpath.c is not properly documented.
This patch stores assumptions, which are necessary for the
change to be correct.

[src/gxclpath.c]

2007-07-06T06:00:17.432528Z Igor Melichev

Fix : A wrong path filling.

DETAILS :

Bug 689317 "A wrong rendering of a path".

gx_path_merge_contacting_contours didn't account implicit closepath
with non-zero length. Due to that the filling algorithm could
recieve a path with a missed segment. It caused some areas
are missed while filling.

This fix is important for restoring high level clist objects,
which were disabled with rev 5056 change to gdevprn.c .

This fix inserts a line segments at the place of implicit closepath
before merging contours.

Minor change : improving documentation about
gx_path_merge_contacting_contours.

[src/gxpcopy.c]

2007-07-05T19:04:29.604836Z Till Kamppeter

Let scripts search Ghostscript (or subscripts) in the same directory where they reside, bug 689318.

[lib/printafm lib/eps2eps lib/pdf2dsc lib/gsbj lib/ps2epsi lib/gsdj lib/dumphint lib/gsnd lib/font2c lib/pdfopt lib/pdf2ps lib/ps2pdf lib/gslj lib/pfbtopfa lib/bdftops lib/ps2pdf12 lib/ps2pdf13 lib/ps2pdf14 lib/gslp lib/wftopfa lib/ps2pdfwr lib/ps2ps lib/pphs lib/pf2afm lib/gsdj500]

2007-07-05T18:12:59.492244Z Timothy Osborn

Fix for bug #689312.

DETAILS:

Ghostscript would fail with "Unrecoverable error, exit code 255" when
PaintType 2 tiling patterns were used in jobs run with GraphicsAlphaBits set
to 2 or 4. Fixed by not returning an error from pattern_accum_get_bits_rectangle
when called for a PaintType 2 pattern and the gx_device_pattern_accum bits
field is NULL as the bits field is only used with PaintType 1 patterns.

[src/gxpcmap.c]

2007-07-05T10:57:00.783595Z Till Kamppeter

Let dvipdf support "-R" option, bug  689328.

[lib/dvipdf]

2007-07-05T10:41:52.033081Z Till Kamppeter

Allow spaces in the input file names for pv.sh, bug 689329.

[lib/pv.sh]

2007-07-05T10:31:06.013010Z Till Kamppeter

Use mktemp in ps2epsi, bug 689324.

[lib/ps2epsi]

2007-07-04T22:52:57.119341Z Ralph Giles

Remove an obsolete cvs housekeeping file.

[toolbin/tests/.cvsignore]

2007-07-04T19:52:15.096425Z Ray Johnston

Fix for local ExtGState values that would caused invalidaccess on
printers or RIPS that have any of blackgeneration, undercolorremoval,
colortransfer or halftone in local VM. Customer #534.

DETAILS:

The 'cp2g' procedures used may be useful elsewhere. The version here
uses only "standard" Level 2 PostScript (it cannot use Ghostscript
extensions). Performance isn't critical since it is only used at
initialization.

[lib/opdfread.ps]

2007-07-04T19:09:09.181743Z Alex Cherepanov

Add a newline to a debug printf. Bug 689330.

[src/gdevdflt.c]

2007-07-04T17:30:44.235393Z Ray Johnston

Fix a typo in the jpeg config that resulted in MAX_ALLOC_CHUNK being
too small (0xfff0). Bug 689321.

DETAILS:

While ARCH_SIZEOF_INT was set to '4', it is done in std.h, not arch.h.
Changing to use ARCH_LOG2_SIZEOF_INT instead since this is defined.

[src/gsjconf.h]

2007-07-04T14:11:22.971272Z Alex Cherepanov

Make sed in pstoepsi correctly work independent of the current locale.
In LC_COLLATE=en_US{,.UTF-8} and a bunch of other locales '~' comes before '!'
when sorting, so you really cannot write !-~ but ~-! in those locales.
Bug 689325.

[lib/ps2epsi]

2007-07-03T18:21:38.196871Z Alex Cherepanov

Make the top dictionary in the file generated by pswrite device writable.
Reportedly, setpagedevice writes to a top directory on an Epson printer.
Bug 689315, attachment 3108.

[src/gdevpsu.c]

2007-07-03T12:00:18.641724Z Alex Cherepanov

Fix a harmless typo, replace bitwise '&' with logical '&&' in a couple of
logical expressions. Bug 689315, attachment 3115.

[src/scfd.c src/gdevps.c]

2007-07-02T08:09:03.552980Z Igor Melichev

Extend the clist language with fill_trapezoid. 

DETAILS :

It saves the clist file size with writing a higher level objects.
The old code expands trapezoids with lots of rectangles.

[src/gxclist.c src/gxclpath.h src/gxcldev.h src/gxclrast.c src/gxclrect.c]

2007-07-01T17:18:18.933670Z Alex Cherepanov

Include the system headers first to avoid name conflict between Cygwin
headers and a Ghostscript macro. This works because (1) we don't use
the affected structure, (2) system header files are protected from double
inclusion. Bug 689276.

[src/zimage.c src/zvmem.c src/int.mak src/zfproc.c src/zfile.c src/ztoken.c]

2007-06-30T23:46:18.087581Z Alex Cherepanov

Compare the type of the object cached in the font descriptot with the expected
type and ignore the cache when the types mismatch. The same descriptor can
refer to Font and CIDFont resources if they happen to have the same name and
are not embedded. Bug 689301, customer 870.

DETAILS:
tx_pdf 12.0.112.500 created quite strange PDF file. The file refers to
Palatino font and Palatino CIDFont through the same font descriptor.
Both the font and CIDFont versions are not embedded. There's no rule in PDF
against merging equal objects from unrelated contexts.

Old code cached the font or CIDFont file in the font descriptor.
Re-using the font descriptor for a different type of the object caused the
wrong object to be retrieved from the cache. In turn, this causes /undefined
error later on.

The patch compares the type of the cached object with the expected type
and ignores the cache when the types mismatch. In our case this results in
an attempt to find Palatino CIDFont resource. Since this resource is not
available, the CMap name is used as a default CIDFont resource name for
the given CMap. In this case, /Adobe-Japan1 /CIDFont resource is searched.
When this resource is available, the file finishes normally. Otherwise the
file fails with /undefinedresource in findresource.

[lib/pdf_font.ps]

2007-06-30T12:25:22.298902Z Alex Cherepanov

Replase setglobal operator with .setglobal in Type 1 font support code to make
it bindable during start-up. Bind other standard executable names in the file.
Bug 689311, customer 411.

[lib/gs_type1.ps]

2007-06-30T06:57:44.535512Z Igor Melichev

Fix : Expanding gxcldev.h macros, part 7.

DETAILS :

This change is algorithmically equivalent.
The purpose is to eliminate gxcldev.h macros
to simplify the debugging of the clist writer methods.

This 7th step removes obsolete contours.

[src/gxclimag.c src/gxclrect.c]

2007-06-30T06:41:55.227485Z Igor Melichev

Fix : Expanding gxcldev.h macros, part 6.

DETAILS :

This change is algorithmically equivalent.
The purpose is to eliminate gxcldev.h macros
to simplify the debugging of the clist writer methods.

This 6th step simplifies the flow control
with removing unuseful goto and labels.
Also it updates the documentation
in gxcldev.h .

[src/gxcldev.h src/gxclpath.c src/gxclimag.c src/gxclrect.c]

2007-06-29T20:44:57.917902Z Henry Stiles

Temporarily disable the band complexity code and use the existing
"color used" code to detect non trivial raster operations.

DETAILS:

The band complexity code is to be removed entirely.  It is not correct
and (apparently) the person who implemented it did not realize there
was code in the system to accomplish the same task.  For now we fill
in the band complexity array with (correct) values from
gdev_prn_colors_used().  We are not removing all of the band
complexity now because there are other banding projects in the works.

[src/gxclread.c]

2007-06-29T20:21:42.242166Z Ray Johnston

Fix optimization for 0 and 0xff (non-dithered) colors in the wtsimdi_copy_mono
routine. Also add a (temporary) change to force color==0 to cmyk=0x000000ff
(only 100% black). This would be done differently if the input color were
tagged RGB where presumably text objects would map. This is a reasonable
temporary approach since copy_mono is used for bitmapped text.

Also remove the "SKIP_OUTPUT" compile time #define and add "output_is_nul"
detection of the OutputFile name being nul: or /dev/null to make it easier
to go back and forth between timing runs (to /dev/null) and runs where we
want to look at the output.

DETAILS:

Both the copy_mono optimizations and the mapping of color 0 can be disabled
by removing (or commenting) the #defines above wtsimdi_copy_mono. These are
on by default.

[src/gdevwts.c]

2007-06-29T15:38:25.753618Z Igor Melichev

Fix : Expanding gxcldev.h macros, part 5.

DETAILS :

This change is algorithmically equivalent.
The purpose is to eliminate gxcldev.h macros
to simplify the debugging of the clist writer methods.

This 5th step eliminates FOR_RECTS and END_RECTS macros.
So now all control flow statements are outside macros.

[src/gxcldev.h src/gxclpath.c src/gxclimag.c src/gxclrect.c]

2007-06-29T14:54:20.698917Z Igor Melichev

Fix : Expanding gxcldev.h macros, part 4.

DETAILS :

This change is algorithmically equivalent.
The purpose is to eliminate gxcldev.h macros
to simplify the debugging of the clist writer methods.

This 4nd step eliminates the general form of
END_RECTS_ON_ERROR. Since it is used at once,
we simply expand it and perform some syntactic
simplifications.

Besides that, 2 new macros RECT_ENUM_INIT
and RECT_STEP_INIT prepare further simplifications.

[src/gxcldev.h src/gxclimag.c]

2007-06-29T09:28:27.467512Z Igor Melichev

Fix : Expanding gxcldev.h macros, part 3.

DETAILS :

This change is algorithmically equivalent.
The purpose is to eliminate gxcldev.h macros
to simplify the debugging of the clist writer methods.

This 3nd step collects local variables
of a rectangle enumerator in a single structure
cmd_rects_enum_s.

In the old code the macro FOR_RECTS modifies
function arguments 'y' and 'height'.
It doesn't comply with C-style.htm .
For fixing that this patch renames
function arguments x,y,width,height with
rx,ry,rwidth,rheight.

[src/gxcldev.h src/gxclpath.c src/gxclimag.c src/gxclrect.c]

2007-06-28T22:16:45.367783Z Ralph Giles

Pass -DHAVE_FONTCONFIG through CAPOPT so the fontconfig patch is 
actually enabled by the autoconf build.

DETAILS:

Previously, it was passed through ACDEFS which we don't currently use. 
This line is getting longer; probably we should move to 
platform-specific config files, and manage the autoconf one with 
autoheader.

[src/Makefile.in src/configure.ac]

2007-06-28T22:08:46.177663Z Ralph Giles

Pass EXTRALIBS when linking mkromfs. This is a hack, but the dependency 
on the gp library pulls in a number of other things, and this seems 
safer for the time being.

[src/unix-aux.mak]

2007-06-27T23:19:42.317364Z Alex Cherepanov

Lower the PDF version searched for transparency features to 1.2 to handle
broken PDF files generated by SPIRIT 14.22. Bug 689288, customer 850.

[lib/pdf_main.ps]

2007-06-27T16:48:22.479129Z Ralph Giles

Enable dynamic driver support on Solaris. Patch from Norm Jacobs, Bug 
689307.

[src/configure.ac]

2007-06-27T01:52:29.856489Z Ray Johnston

Fix an out of bounds buffer write in the wts_load_halftone logic and fine
tune the wts_resolve_one color conversion cache hashing for 4K (the default).
Bug 689255 for customer 951.

DETAILS:

Besides fixing the out of bounds logic, I added a 'bufsize' parameter to the
gs_wts_from_buf logic so that we can detect OOB conditions. Note that the
1+hdr_size+cell_size in gx_ht_read_component_wts is retained by this patch
even though it looks bogus (we want to commit the fix so we can send to a
customer, and will look at this later).

In refining the cache stats in the wtsimdi device, the 'fill_empty' case
and the 'collision' case were split to make sure that the hash is decent,
but even 1M cache hits (on ACDsee.prn) only save about 1.5 seconds (out
of 9 seconds). The hash algorithm for smaller collision rates won't really
matter much.

[src/gswts.h src/gxdhtserial.c src/gdevwts.c src/gswts.c]

2007-06-26T20:43:03.119310Z Igor Melichev

Fix : Expanding gxcldev.h macros, part 2.

DETAILS :

This change is algorithmically equivalent.
The purpose is to eliminate gxcldev.h macros
to simplify the debugging of the clist writer methods.

This 2nd step replaces HANDLE_RECT_UNLESS
with macros that don't include goto or return statements.

Besides that, the pattern :

		if (code < 0) {
		    band_code = code;
		    goto error_in_rect; /* ERROR_RECT(code); */
 		}

is replaced with the smaller one :

		if (code < 0 && SET_BAND_CODE(code))
		    goto error_in_rect;

for a better readability.

Some compilers may claim unreferenced label error_in_rect.
To be fixed in the next step.

[src/gxcldev.h src/gxclimag.c src/gxclrect.c]

2007-06-26T16:25:42.642877Z Igor Melichev

Fix : Expanding gxcldev.h macros, part 1.

DETAILS :

This change is algorithmically equivalent.
The purpose is to eliminate gxcldev.h macros
to simplify the debugging of the clist writer methods.

This first step removes simple macros and optimized macro duplicates.
Removing others to be done in the next step.

Some compilers may claim unreferenced label error_in_rect.
To be fixed in the next step.

[src/gxcldev.h src/gxclpath.c src/gxclimag.c src/gxclrect.c]

2007-06-26T15:58:26.994368Z Till Kamppeter

Replaced the $(install_prefix) from ESP Ghostscript by $(DESTDIR).

[contrib/contrib.mak cups/cups.mak]

2007-06-26T07:08:17.110301Z Ray Johnston

Add logic for a configurable color lookup cache to the wts* devices.
Currently set to 4K (4096 entries). Testing indicates this is a 
reasonable value, adequate for all synthetic/graphics arts pages
and adequate for photos/scanned images.


DETAILS:

The hash function is rather arbitrary, but some experimentation with
more sophisticated hashing doesn't really show much difference since
the color lookup isn't such a high CPU load even on the performance
files which are entirely images. A 4K CLUT achieves 1.4M hits and
even a 64K CLUT size only gets 1.6M hits (out of ~6M pixels) .

[src/gdevwts.c]

2007-06-25T23:56:29.899646Z Ralph Giles

Report the result of the GTK-2.0 configure test. Normalize indentation 
in this section.

[src/configure.ac]

2007-06-23T02:43:31.980612Z Alex Cherepanov

Replace exponential format of a real number with a decimal point format
in PDF writing utilities because PDF doesn't support exponential format.
Bug 689293, customer 932.

[lib/pdfwrite.ps]

2007-06-22T22:05:56.668720Z Till Kamppeter

Small corrections on "./configure" checks for pkg-config.

[src/configure.ac]

2007-06-22T15:44:43.448105Z Till Kamppeter

Added the fontconfig support from ESP Ghostscript

[src/Makefile.in src/configure.ac src/gp_unix.c]

2007-06-20T22:46:08.189858Z Ralph Giles

Clarify the license situation with the ETS patents in the GPL 
distribution.

[src/rinkj/evenbetter-rll.c LICENSE]

2007-06-20T19:46:52.216039Z Ralph Giles

Hack in some support for comparing WX fields with --diff. Incomplete.

[toolbin/afmutil.py]

2007-06-19T16:59:20.420492Z Igor Melichev

Fix : MSVC8 compiler warnings.

DETAILS :

The revision 8075 causes an unuseful type cast.

[src/gsdparam.c]

2007-06-19T16:44:29.490746Z Igor Melichev

Fix (PS interpreter) : "undef" data change was not properly saved.

DETAILS :

Bug 689284 "Abnormal dependence of 'known' on name hash indices".

The "undef" algorithm has an "optimization" branch for packed keys,
which replaces "deleted" elements with "empty" (i.e. unused).
However this data change was not tracked for "restore".
In some rare cases it causes a wrong result for "known", "get", "bind"
and others. Interesting that "dictforall" doesn't miss such keys
when "known" does, but it could enumerate same key several times
with older values.

The bug persists since the repository was created in March 2000.

This change simply saves the changed data for restore.

[src/idict.c]

2007-06-19T11:36:06.688290Z Alex Cherepanov

Add version and revision numbers to %%BeginResource DSC comment generated by
epswrite and pswrite devices. Bug 689285.

[src/gdevpsu.c]

2007-06-19T07:16:20.368343Z Igor Melichev

Fix: Setting a right property on gscicach.c gscicach.h .

[src/gscicach.c src/gscicach.h]

2007-06-19T07:12:43.707003Z Igor Melichev

Fix: Setting a right property on idicttpl.h .

[src/idicttpl.h]

2007-06-19T07:09:42.151414Z Igor Melichev

Fix (PS interpreter) : Replace packed_search_* macros with a template (continued).

DETAILS :

This change is algorithmically equivalent.
The purpose is to improve the debugging technology.
The new variable 'start' allows to observe the value of the starting search index.

[src/idicttpl.h]

2007-06-19T05:51:01.853658Z Igor Melichev

Fix (The filling algorithm) : Improving a condition for visual trace.

DETAILS :

This change affects the debug painting only.
The old code wrongly accounts the case when fill adjustment is set to -1, which means "none".

[src/gxfill.c]

2007-06-19T05:45:58.839755Z Igor Melichev

Fix (PS interpreter) : Replace packed_search_* macros with a template.

DETAILS :

This change is algorithmically equivalent.
The purpose is to improve the debugging technology.
It allows to trace through the packed search code
with Microsoft Developer Studio.

We define a new variable 'wrap'
for reducing 3 macros to a single template.
We believe it shouldn't cause a sensible slowdown.
An alternative is 2 (nested) templates and no new variables.

We noticed that the missing key case is not optimized well.
When the key is missing, the algorithm scans the 
left part of the array 2 times. One time should be enough.
It should be optimized in a separate patch.

[src/idict.c src/idictdef.h src/int.mak src/idicttpl.h doc/Develop.htm src/idstack.c]

2007-06-19T02:39:15.345882Z Alex Cherepanov

Use newly created operator .getpath to implement PDF path handling without
64K limit on the user path imposed by upath, which we had before.
Bug 689123, customer 870.

[lib/pdf_draw.ps doc/Language.htm lib/pdf_ops.ps src/zupath.c]

2007-06-18T17:07:28.482467Z Ray Johnston

Remove the bmpa devices from some builds where it either was left
over (macos-mcp) or snuck back in (configure.ac).

[src/configure.ac src/macos-mcp.mak]

2007-06-18T17:05:33.466587Z Ray Johnston

Fix bmpa and gomni devices to account for changes to mem_*_size
function calling sequences (rev 8056). These were missed since they
were not part of the 'standard' build on most platforms and will
be the 'async' method of gdevprna etc. will be deprecated.

[contrib/gomni.c src/gdevbmpa.c]

2007-06-18T16:37:50.173337Z Timothy Osborn

Need to use maximum of max_gray and max_color to know how many bits are
supported.

DETAILS:

For determining the device color depth, one must check both max_gray and
max_color and use the maximum of the two. For example, with rgb devices
max_gray will be equal to zero. Thanks to Ray for catching my oversite here.

EXPTECTED DIFFERENCES:

None. No alpha bit testing is done in the regression suite.

[src/gsdparam.c]

2007-06-18T15:20:47.700377Z Timothy Osborn

Changing from using log10(x) / Log10(2) to iLog2(x) to compute the base 2 log.

DETAILS:

Making change to conform to gs style.

[src/gsdparam.c]

2007-06-18T06:37:58.394295Z Ray Johnston

Fixes for ulong overflow in memory device buffer sizing that caused
problems with very large (>4Gb on 32-bit machines) page buffer sizes
not invoking clist mode. Also the internal 'mask' image allocation
in ImageType3 would silently wrap around, causing SEGV crashes.

Lastly, the tiff*nc devices are fixed so that they never write to
file when the file will exceed 2Gb (max signed int) since the device
uses 'ftell' to calculate offsets in the file. This last case could
be fixed to use 64 bit file I/O or at least to keep an internal
offset so that multipage tiffs could be > 2Gb as long as each page
was less than 2Gb. Other TIFF devices that compress were not changed
since the probability of overflow is less and we don't want to be
overly agressive about throwing a 'rangecheck' on the basis of the
uncompressed size.

Bugs 688808, 688815 and 689080 for customer 190 (and others).

DETAILS:

The buf_device/bitmap sizing functions now return a success code,
setting the size using a pointer passed as a parameter. A bitmap
that overflows max_ulong now throws gs_error_VMerror so that the
caller can take appropriate recovery action (such as gdevprn using
a clist instead of a page buffer).

The ImageType 3 mask probably needs an internal clist method (such
as was done for the pattern accumulator) to avoid this overflow.

As mentioned above, the TIFF devices, particularly the '*nc' type
(not compressed) could benefit from using 64-bit file I/O calls
for those that want to fill up large hard drives quickly.

[src/gdevdsp.c src/gdevxini.c src/gxclist.c src/gxpcmap.c src/gxccman.c src/gxdevmem.h src/gdevppla.c src/gxmclip.c src/gdevmem.c src/gdevprn.c src/gximag3x.c src/gdevdrop.c]

2007-06-17T17:55:26.407602Z Henry Stiles

Fix 689275.  The slow rop flag was not set to true for ROP 170 (paint
with destination), this is an unexpected problem because it is the
most basic rop that requires setting the "slow rop" flag.  In addition
to fixing the tests in the bug resport The following CETS recorded
differences in automated testing, but only a few have been visually
verified as fixes.

tests/pcl/pcl5ccet/22-13.BIN 
tests/pcl/pcl5ccet/22-20.BIN 
tests/pcl/pcl5ccet/23-11.BIN 
tests/pcl/pcl5ccet/25-04.BIN 
tests/pcl/pcl5ccet/25-05.BIN 
tests/pcl/pcl5ccet/25-06.BIN 
tests/pcl/pcl5efts/fts.2400 
tests/xl/pxlfts2.0/t106.bin 
tests/xl/pxlfts2.0/t202.bin 
tests/xl/pxlfts2.0/t328.bin 
tests/xl/pxlfts3.0/A007.BIN 
tests/xl/pxlfts3.0/A008.BIN 
tests/xl/pxlfts3.0/T106.BIN 
tests/xl/pxlfts3.0/T202.BIN 
tests/xl/pxlfts3.0/T328.BIN 
tests/xl/pxlfts3.0/T336.BIN 
tests/xl/pxlfts3.0/T419.BIN 
tests/xl/pcl6cet/c207.bin 
tests/xl/pcl6cet/c311.bin 
tests/xl/pcl6cet/c313.bin 
tests/xl/pcl6cet/c327.bin 
tests/xl/pcl6cet/c328.bin 
tests/xl/pcl6cet/c419.bin 
tests/xl/pcl6cet/c420.bin 
tests/xl/pcl6cet/c427.bin 
tests/xl/pxlfts/t106.bin 
tests/xl/pxlfts/t202.bin 
tests/xl/pxlfts/t328.bin 
tests/xl/pxlfts/t419.bin 
tests/xl/pcl6cet3.0/C207.bin 
tests/xl/pcl6cet3.0/C311.bin 
tests/xl/pcl6cet3.0/C313.bin 
tests/xl/pcl6cet3.0/C327.bin 
tests/xl/pcl6cet3.0/C328.bin 
tests/xl/pcl6cet3.0/C419.bin 
tests/xl/pcl6cet3.0/C420.bin 
tests/xl/pcl6cet3.0/C427.bin 
tests/xl/pcl6cet3.0/C701.bin 
tests/xl/pcl6cet3.0/C702.bin 
tests/xl/pcl6cet3.0/C704.bin 
tests/customer_tests/Fc707oj2.bin.xl 
tests/customer_tests/Fc70foj3.bin.xl 
tests/customer_tests/cie.out 
tests/customer_tests/circle1.pcl 
tests/customer_tests/fp309oa2.bin 
tests/customer_tests/lj.pcl 
tests/customer_tests/wd309dwf.pcl 
tests/customer_tests/wd30ddwf.pcl

[src/gxclrect.c]

2007-06-17T00:01:02.174467Z Alex Cherepanov

Fix misleading error message from runlibfile0 that always referred to the last
libfile that was ever STARTED, even if it finished and control returned to
another file. Bug 688738.

DETAILS:
Change runlibfile0 to define ".currentfilename" again after the libfile ends.
The  correct value is kept on the exec stack, by constructing and executing a
procedure with the filename bound into it. Thanks to SaGS for the patch.

[lib/gs_init.ps]

2007-06-16T19:24:22.647261Z Timothy Osborn

Fix to limit GraphicsAlphaBits and TextAlphaBits to legal values.

DETAILS:

Bug 688020 reported that when a user set the GraphicsAlphaBits and TextAlphaBits
to values not supported by the current device unexpected images would be
generated. This fix limits the internal values used to those which are supported
by the current output device.

[src/gsdparam.c]

2007-06-15T18:55:34.118706Z Timothy Osborn

Comment change to reflect name change of the module gsncdemo.c to gsncdummy.c

DETAILS:

See above.

[src/gsnamecl.h]

2007-06-14T22:06:25.996646Z Alex Cherepanov

Implement quoting in GS_OPTIONS environment variable. Bug 688965.

DETAILS:
Old code treated quotes in GS_OPTIONS as regular characters
and not used them for quoting spaces. New code distinguish
between a single already parsed argument, retrieved by a previous
call to arg_next() and unparsed list of arguments from GS_OPTIONS.
Thanks to SaGS for the patch.

[src/gsargs.c src/imainarg.c src/gsargs.h]

2007-06-13T23:21:11.020971Z Igor Melichev

Fix (pdfwrite) : A crash when comparing resources of different types.
Bug 689269 for customer 411. Fix by Ray Johnston.

DETAILS :

pdf_find_same_resource assumed same resource type.
However PDF allows for functions to be either array or dictionary.
Need to compare resource types before comparing their contents.

[src/gdevpdfu.c]

2007-06-13T19:21:47.294205Z Ralph Giles

The translib module now depends on crd decoding and cie support.
Patch from Henry Stiles, needed for the gslt build.

[src/lib.mak]

2007-06-13T16:27:33.371102Z Timothy Osborn

This is a fix for regression bug report 689263.

DETAILS:

Some versions of PhotoShop generate documents that place an extra value on the operand stack and tintTransform replaces it - see bug 549307 for details. Also see the test case of bug 689263. Since GS invokes setcolor as a side-effect of setcolorspace, we must prevent Adobe's hack from pop'ing an extra (significant) item from the operand stack when setcolor is invoked from a setcolorspace context.

The previous patch for bug report 688584, which was committed before I was done with it, was too broad and was undoing Adobe's hack whenever setcolor was invoked (from setcolorspace or otherwise). This change also undoes the previous patch, which was the cause of the error:

Error: /rangecheck in --image--

under the conditions specified in bug report 689263.

[lib/gs_devn.ps lib/gs_cspace.ps]

2007-06-13T02:42:04.178728Z Alex Cherepanov

Fix false detection of circular references in the resource chain. Valid PDF
resource references form a directed acyclic graph but the old code was
checking for a tree. Bug 688479.

[lib/pdf_main.ps]

2007-06-12T20:55:18.217413Z Alex Cherepanov

Avoid an invalidaccess error. Skip execstack elements in the execstack_lookup
procedure for which rcheck returns false. Bug 688934.

[lib/gs_resmp.ps]

2007-06-12T17:12:08.917597Z Igor Melichev

Fix : MSVC8 warnings.

[src/gconf.c src/gdevdjet.c]

2007-06-12T02:41:44.494784Z Ralph Giles

Set native line endings.

[src/gsncdummy.c src/gsncdummy.h]

2007-06-12T02:06:18.488766Z Ralph Giles

Remove LDFLAGS and EXTRALIBS from the mkromfs build line. These were 
inadvertently added during the esp merge and are no longer needed.

[src/unix-aux.mak]

2007-06-11T21:58:13.269101Z Alex Cherepanov

Don't leave ccolor.pattern uninitialized for the null pattern because
this field is enumerated by GC. Bug 689002.

[src/gspcolor.c]

2007-06-10T20:12:02.226861Z Alex Cherepanov

Fix processing of very small PDF files ( < 1024 bytes) that was broken by
rev. 7834 that increased the size of look-ahead buffer to 1024 bytes.

[lib/pdf_main.ps]

2007-06-10T05:21:02.102146Z Alex Cherepanov

Add a work-around for malloc(0) returning a 0 pointer - call malloc(1)
instead. Bug 688532, customer 870.

DETAILS:
This behavior was observer on IBM 4.3 and 5.1. IEEE 1003.1 spec,
which is aligned with ISO C, states:
If the size of the space requested is 0, the behavior is implementation-defined:
the value returned shall be either a null pointer or a unique pointer.

malloc(0) happens when libjasper reads optional tags in the embedded ICC
profile. This doesn't happen too frequently and we can afford to allocate
a few extra bytes.

[jasper/src/libjasper/base/jas_malloc.c]

2007-06-10T05:01:41.885957Z Alex Cherepanov

Fix a memory corruption and a SEGV after applying a filter to a closed stream.
Don't replace an closed stream with invalid_file_stream, which is an open,
0-length stream. Bug 688712.

[src/zfilter.c]

2007-06-10T01:51:33.615609Z Alex Cherepanov

Port recent changes in MSVC build to Borland C build. Fix minor compilation
problems in the components that has not been compiled by Borland C before.

DETAILS:
Although nobody seems to use Borland C, having an alternative compiler
on Windows helps to separatr MSVC errors from Microsoft SDK quirks.

[jasper/src/libjasper/include/jasper/jas_types.h jasper/src/libjasper/jpc/jpc_qmfb.c jbig2dec/os_types.h jasper/src/libjasper/include/jasper/jas_config.h src/bcwin32.mak jbig2dec/config_win32.h src/gdevtsep.c src/genarch.c ijs/unistd_.h src/dwuninst.cpp]

2007-06-09T12:08:12.529992Z Alex Cherepanov

Fix incorrect decompression of large files (>= 16M) by JPXDecode filter
on Windows. Don't open the temporary file in text mode.

[jasper/src/libjasper/include/jasper/jas_stream.h]

2007-06-09T00:16:34.537278Z Ralph Giles

The cups-config script can be installed without the libcupsimage headers.
Check for this and disable gdevcups if the required header isn't available.

[src/configure.ac]

2007-06-08T18:12:46.977956Z Ralph Giles

Update the unix persistent cache implementation to use the new md5 namespace.
This file should have been included in r8032.

[src/gp_unix_cache.c]

2007-06-08T18:03:34.577571Z Ralph Giles

Tell svn to ignore the generated cups scripts.

[cups]

2007-06-08T18:02:05.168482Z Ralph Giles

Namespace the interface calls of our md5 implementation to avoid conflict
with other implementations, for example the one exported by libcups on
MacOS X, or one used by a client which also links to gs as a library.

[src/smd5.h src/gdevpdf.c src/gdevpdfu.c src/md5.c src/smd5.c src/md5.h src/md5main.c]

2007-06-07T04:52:46.418386Z Ralph Giles

Remove an unused clean action.

DETAILS:

This was added as part of the x11 device modularization patch, which
doesn't appear to add any generation of _temp_* files. The Desqview
makefile does, and wctail.mak makes such files in the GLOBJ path,
but cleaning these shouldn't be part of this target regardless.

[src/gs.mak]

2007-06-07T04:44:52.072188Z Ralph Giles

Remove generated cups scripts from the repository.

[cups/pstoraster cups/pstopxl]

2007-06-07T04:40:42.736213Z Ralph Giles

Minor cleanup of the CC_SHARED flag specification.

[src/lib.mak src/unix-gcc.mak]

2007-06-07T03:09:16.997726Z Ralph Giles

Add the new CC_SHARED define to other top-level makefiles that include 
the new modular x11 or vga devices. This corrects the build issue with
ghostpcl.

[src/openvms.mak src/ugcclib.mak src/watcw32.mak src/dvx-gcc.mak src/unixansi.mak src/openvms.mmk src/os2.mak]

2007-06-06T22:46:38.753757Z Ralph Giles

Add gomni.c, which was omitted by the EPS branch merge.

[contrib/gomni.c]

2007-06-06T22:03:27.059105Z Till Kamppeter

Finally merged in extra functionality of ESP Ghostscript (from branch "gs-esp-gpl-merger")

[libpng/projects/netware.txt libpng/scripts/makefile.gcmmx libpng/contrib/gregbook/writepng.c src/configure.ac contrib/eplaser libpng/contrib/pngminus/makevms.com libpng/contrib/gregbook/readpng2.c libpng/contrib/gregbook/writepng.h libpng/contrib/gregbook/Makefile.unx libpng/scripts/makefile.msc libpng/scripts/makefile.sgi libpng/contrib/gregbook/readpng2.h libpng/contrib/visupng/VisualPng.dsp libpng/projects/beos/x86-shared.txt libpng/KNOWNBUG src/gdevpx.c src/gdevl256.c libpng/projects/cbuilder5/libpng.readme.txt src/gdevvglb.c libpng/scripts/makefile.watcom libpng/contrib/visupng/VisualPng.dsw libpng/scripts/makefile.nommx libpng/scripts/makefile.linux contrib/chp2200 libpng/scripts/CMakeLists.txt contrib/gdevlx50.c libpng/scripts/makefile.acorn lib/gs_init.ps src/gdevlbp8.c libpng/contrib/pngsuite/basn3p01.png libpng/projects/visualc71/zlib.vcproj contrib/gdevbjc_.c libpng/scripts/makefile.elf libpng/scripts/pngw32.rc contrib/japanese libpng/contrib/gregbook/toucan.png libpng/scripts/makefile.mips libpng/projects/visualc71/libpng.sln contrib/gdevbjc_.h libpng/pngrio.c libpng/contrib/gregbook/makevms.com libpng/contrib/gregbook/rpng-win.c libpng/projects/cbuilder5/libpngstat.bpf src/devs.mak libpng/projects/visualc6 contrib/pcl3 contrib/gdevlx7.c libpng/scripts/libpng.pc-configure.in src/gdevdjet.c contrib/defs.h src/gs.mak libpng/contrib/pngsuite/basn0g02.png libpng/README src/Makefile.in libpng/contrib/pngsuite/basn0g04.png libpng/contrib/gregbook libpng libpng/contrib libpng/projects/cbuilder5/libpngstat.bpr libpng/contrib/pngsuite/basn4a08.png libpng/libpngpf.3 libpng/contrib/pngsuite/basn0g08.png src/unixinst.mak libpng/contrib/pngminus/makefile.tc3 libpng/TODO src/gp_unix.c libpng/scripts/descrip.mms contrib/gdevxes.c libpng/contrib/visupng/VisualPng.ico libpng/scripts/makefile.solaris libpng/projects/cbuilder5/zlib.readme.txt libpng/pngwtran.c src/gdevlj56.c libpng/scripts/makefile.hp64 src/gdevdljm.c contrib/gdevcd8.c libpng/contrib/pngminus/png2pnm.sh libpng/contrib/pngminus/pnm2png.sh libpng/contrib/gregbook/wpng.c libpng/pngnow.png libpng/scripts/makefile.bc32 libpng/contrib/gregbook/README contrib/contrib.mak libpng/projects/visualc71/pngtest.vcproj src/gdevdljm.h libpng/scripts/makefile.vcwin32 contrib/gdevcd8.h contrib/gdevdj9.c libpng/contrib/gregbook/rpng2-win.c libpng/scripts/pngw32.def libpng/projects/beos/x86-static.proj libpng/pngget.c libpng/scripts/makefile.os2 libpng/contrib/pngminus/makefile.std libpng/projects/cbuilder5 libpng/scripts/makefile.sunos libpng/projects/wince.txt libpng/contrib/visupng/cexcept.h libpng/libpng.3 libpng/scripts/makefile.ibmc libpng/contrib/gregbook/rpng2-x.c libpng/pngtrans.c libpng/pngwrite.c libpng/contrib/gregbook/LICENSE libpng/pngset.c libpng/scripts/makefile.dj2 libpng/projects/visualc71/README.txt libpng/LICENSE libpng/projects/visualc71/libpng.vcproj libpng/contrib/visupng/VisualPng.png libpng/png.5 src/gconf.c libpng/pngwutil.c libpng/scripts/makefile.openbsd libpng/scripts/makefile.gcc contrib/md2k_md5k libpng/contrib/visupng/VisualPng.rc libpng/scripts/makevms.com libpng/scripts/libpng.pc.in contrib/gdevmd2k.c libpng/contrib/pngminus/pngminus.sh libpng/pngrtran.c libpng/scripts/makefile.freebsd src/unix-dll.mak contrib/lips4 contrib/gdevhl12.c libpng/scripts/makefile.hpgcc libpng/scripts libpng/scripts/makefile.sco src/lib.mak libpng/scripts/makefile.tc3 libpng/scripts/pngos2.def libpng/contrib/gregbook/Makefile.sgi libpng/contrib/pngminus/README cups libpng/scripts/makefile.vcawin32 libpng/contrib/pngsuite/basn2c16.png libpng/contrib/gregbook/readpng.c libpng/contrib/pngminus src/unix-gcc.mak libpng/contrib/pngsuite/basn6a16.png libpng/pngmem.c libpng/png.c contrib/gdevop4w.c libpng/contrib/gregbook/readpng.h libpng/scripts/makefile.64sunu src/version.mak libpng/contrib/pngsuite/basn3p02.png contrib/opvp libpng/projects/beos/x86-static.txt libpng/scripts/libpng-config-head.in libpng/png.h libpng/contrib/pngsuite/basn3p04.png contrib/gdevbjca.c libpng/contrib/pngsuite/basn3p08.png libpng/pngpread.c libpng/Y2KINFO libpng/scripts/makefile.netbsd libpng/projects/beos/x86-shared.proj libpng/pngwio.c lib/gs_setpd.ps libpng/pngrutil.c libpng/projects/visualc6/libpng.dsp libpng/contrib/pngminus/pnm2png.bat libpng/contrib/gregbook/Makefile.w32 libpng/contrib/pngminus/png2pnm.bat libpng/scripts/makefile.darwin libpng/scripts/makefile.hpux libpng/pngbar.jpg libpng/projects/cbuilder5/libpng.bpf libpng/projects libpng/projects/cbuilder5/libpng.bpg libpng/scripts/makefile.sggcc libpng/contrib/gregbook/rpng-x.c libpng/contrib/pngsuite/basn0g01.png libpng/projects/visualc6/libpng.dsw contrib/uniprint libpng/scripts/makefile.std libpng/contrib/pngsuite libpng/contrib/pngminus/pnm2png.c libpng/contrib/pngminus/png2pnm.c libpng/projects/visualc71/README_zlib.txt libpng/scripts/makefile.32sunu libpng/projects/cbuilder5/libpng.bpr libpng/contrib/pngminus/pngminus.bat 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libpng/scripts/makefile.amiga src/contrib.mak contrib/gdevln03.c libpng/contrib/pngsuite/README libpng/pngbar.png libpng/scripts/makefile.knr libpng/projects/visualc6/pngtest.dsp libpng/scripts/makefile.dec libpng/scripts/libpng.icc libpng/contrib/pngsuite/basn2c08.png src/unix-aux.mak libpng/contrib/pngsuite/basn6a08.png libpng/projects/cbuilder5/libpng.cpp libpng/scripts/makefile.atari libpng/scripts/makefile.cygwin contrib/epson740 libpng/pngtest.c libpng/ANNOUNCE libpng/projects/visualc71 libpng/scripts/smakefile.ppc]

2007-06-05T23:08:49.369051Z Ralph Giles

Remove additional artofcode references and the obsolete Maintain.htm.

[doc/Projects.htm doc/Issues.htm doc/Use.htm doc/Make.htm doc/Readme.htm doc/Testing.htm doc/Develop.htm doc/Maintain.htm]

2007-06-05T23:04:12.844617Z Ralph Giles

Remove artofcode references and update the release process 
documentation.

[doc/Release.htm]

2007-06-05T22:23:38.874733Z Ralph Giles

Update licence headers. Copyright has been transfered from artofcode LLC 
to Artifex Software, Inc.

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src/zfont2.c src/iimage2.h src/gxrplane.h src/gsfcmap.h src/gxp1fill.c src/imemory.h src/gsciemap.c src/dos_.h src/zdscpars.c src/gscdef.c src/gdevwpr2.c src/gxtmap.h src/setjmp_.h src/gsbitcom.c src/zchar.c src/gdevsun.c src/gscrypt1.c doc/Fonts.htm src/gscrypt1.h src/ztrans.c src/dwmainc.c src/gxdht.h src/dvx-head.mak src/zcsindex.c src/zcidtest.c src/gdevrops.c src/gdevpdtx.h src/gdevijs.c src/icolor.h src/stdpn.h src/store.h src/gxfixed.h src/gstypes.h src/gdevjpx.c src/gsserial.c src/string_.h src/gdevcslw.c src/gsjmorec.h src/gsserial.h src/zfdctd.c src/zdps.c src/scanchar.h src/gxpcache.h man/de/pdf2ps.1 src/lib.mak src/gdevdsp.c src/zmatrix.c src/sdctc.c src/gdevdsp.h src/gdevpipe.c src/gspmdrv.rc src/gdevsvga.c src/gdevpdti.c ijs/unistd_.h src/gdevsvga.h src/gdevpdti.h src/gdevepsn.c src/gsparam2.c src/gp_mktmp.c src/stat_.h src/zfsample.c src/zfdecode.c src/gsstruct.h jbig2dec/jbig2_huffman.c src/gximag3x.c src/gsgc.h jbig2dec/jbig2_huffman.h src/gscolor1.c src/gsnamecl.c src/dwtrace.c src/gdevmswn.c src/ierrors.h src/gxfcmap.h src/gdevjpeg.c src/gximag3x.h src/siinterp.c src/gscolor1.h src/gsnamecl.h src/dwtrace.h src/gdevmswn.h src/gdevbbox.c src/siinterp.h src/opdef.h lib/opdfread.ps src/gximask.c src/gdevbbox.h src/iddict.h doc/History2.htm src/gp_stdin.c src/gdevtfax.c src/gdevpjet.c src/gsexit.h src/gendev.c src/gximask.h src/gdevphex.c src/gp.h src/gslparam.h src/ivmspace.h src/gdevtfax.h src/gshtscr.c jbig2dec/jbig2_image_pbm.c src/bench.c src/gsnogc.c ijs/ijs.c src/gdevbmpa.c src/gsnogc.h src/stdio_.h src/tttables.h src/gdevemap.c ijs/ijs.h src/gp_sysv.c jasper/src/libjasper/include/jasper/jas_debug.h src/gsrefct.h src/iastruct.h man/de/dvipdf.1 src/gdevbjc.h src/gdevpsf2.c jbig2dec/jbig2_arith_int.c src/gzht.h doc/Develop.htm src/gxcvalue.h jbig2dec/jbig2_arith_int.h src/sstring.c lib/mkcidfm.ps src/gxpath.c src/scfparam.c src/sstring.h src/gdevupd.c src/iconf.c src/gxpath.h src/interp.c src/zcrd.c src/dwnodll.c src/iconf.h doc/C-style.htm src/gdevm40.c src/dwdll.c src/interp.h man/ps2pdfwr.1 src/dwdll.h src/gsiodisk.c src/sjpegd.c src/gspath2.h src/dvx-tail.mak src/gdevpsim.c src/errors.h src/gp_msprn.c src/gxino12b.c src/gdevmgr.c src/gxacpath.c src/gdevpdfp.c src/gslib.c src/ziodev.c src/gdevmgr.h src/iccinit0.c src/sdcte.c doc/Release.htm src/zfunc0.c src/ifont1.h src/gxccache.c src/gslib.h src/gxmatrix.h src/ifunc.h src/gxfdrop.c src/gp_unifs.c src/gxobj.h src/gxfdrop.h src/gxhintn.c src/gsiorom.c src/isstate.h jbig2dec/jbig2_hufftab.h jbig2dec/jbig2_text.c src/gdevm2.c src/gxhintn.h src/gsiorom.h src/ifilter2.h src/gspath.c src/gdevwddb.c src/gxpcopy.c src/gspath.h src/gscolor3.c src/gdevdjet.c man/gsnd.1 src/gscolor3.h src/gxfapiu.c src/zpath1.c src/rinkj/rinkj-dither.c doc/History3.htm src/gxfapiu.h src/gdevm24.c src/gp_unix.c src/rinkj/rinkj-dither.h src/inamedef.h jbig2dec/config_win32.h src/ilocate.c src/gxdcolor.c src/gdevpm.c src/gscdefs.h src/vmsmath.h src/gscencs.c src/gxdcolor.h src/gzstate.h src/gdevpm.h src/gdevbmpc.c src/gschar0.c Resource/ColorSpace/DefaultRGB src/iht.h src/zdevice.c src/gscie.c src/gscencs.h src/gxi16bit.c src/ifapi.h src/zimage2.c src/gscie.h src/iastate.h src/pipe_.h src/gxbitops.h src/ipacked.h src/gsncdummy.c src/gpsync.h src/gsfunc3.c src/gswin.rc src/gdevperm.c src/gsncdummy.h src/gsccode.h src/gxpath2.c src/gsfunc3.h src/gp_strdl.c src/gxdevbuf.h src/genconf.c src/sa85d.c src/gscsel.h src/openvms.mmk src/sa85d.h src/gp_stdia.c src/zcolor2.c src/gdev3b1.c src/gxttf.h src/ttconf.h src/genht.c src/zgeneric.c man/de/printafm.1 src/gxclrect.c src/gxarith.h src/gsshade.c src/gsshade.h src/msvclib.mak src/gsicc.c src/zcid.c src/dwsetup.cpp src/gdevp2up.c src/dwuninst.rc src/gsicc.h src/gdevpdfr.c src/gdevppla.c src/zmisc1.c src/gdevppla.h src/gsdevmem.c src/wccommon.mak src/gxfcopy.c src/gdevpsft.c src/gxfcopy.h src/gdevtfnx.c src/gsmisc.c src/gxicolor.c src/gdevm4.c src/ldf_jb2.mak src/gxpageq.c src/winint.mak src/gsdparam.c man/ps2pdf.1 doc/Details8.htm doc/Make.htm src/gxpageq.h src/gxdevrop.h src/gsstype.h src/gdevprn.c src/gdevcif.c lib/gs_resst.ps src/gxdevndi.c doc/History4.htm toolbin/tests/check_comments.py src/gdevprn.h src/gxdevndi.h src/iesdata.h src/dxmain.c src/gdevpdfc.c src/iapi.c ijs/ijs_server_example.c src/spngpx.h src/gdevpdfc.h src/gdevherc.c src/iapi.h src/btoken.h src/zcharout.c toolbin/tests/gscheck_fuzzypdf.py src/gdevepsc.c src/gxdevice.h src/gximage2.c src/srld.c src/zht.c src/gxshade4.c src/sjpx_luratech.c src/gxshade4.h src/iinit.c src/watcw32.mak src/gdevstc1.c src/gxbitmap.h src/sjpx_luratech.h src/gxccman.c src/iinit.h src/gsalphac.c src/gxshade.c src/sbtx.h src/zfunc.c src/gsclipsr.c src/gsalphac.h src/gxshade.h src/gsrop.c src/gsclipsr.h src/idict.c src/gxistate.h src/gsrop.h jbig2dec/memcmp.c src/gscoord.c src/idict.h src/gxcolor2.h src/macos_carbon_d_pre.h toolbin/pre.tcl src/gscoord.h src/genarch.c src/gscedata.c doc/Projects.htm src/gxcindex.h src/gscpm.h src/gp_nsync.c src/gscedata.h src/gdevmr2n.c src/gdevdgbr.c src/gdevdsha.c src/zlib.mak src/gdevxcf.c lib/gs_fapi.ps src/gxtext.h src/zchar1.c src/gscdevn.c src/gscdevn.h src/gdevpdft.c src/gdevpsdi.c src/shcgen.c src/gsiparam.h src/zmisc3.c src/zfapi.c src/zfunc4.c src/malloc_.h src/shcgen.h src/gscpixel.c src/gscpixel.h src/gdevplnx.c src/dirent_.h src/gdevplnx.h src/zfzlib.c src/Makefile.in src/gscsepr.c src/iutil2.c doc/History5.htm src/gscsepr.h src/gxwts.c src/gsimage.c src/ipcolor.h src/sjpeg.h src/iutil2.h src/gstext.c src/gxwts.h src/gsimage.h src/msvccmd.mak src/gstext.h src/gdevpdfe.c src/rinkj/rinkj-byte-stream.c src/gsflip.c src/sidscale.c src/rinkj/rinkj-byte-stream.h src/gsflip.h src/sidscale.h src/gdevdljm.c src/zdpnext.c src/geninit.c src/gdevdljm.h src/zusparam.c src/gdevjbig2.c man/pfbtopfa.1 src/gxchrout.c src/gximage4.c src/gxchrout.h src/gxshade6.c src/gxcoord.h jbig2dec/jbig2_page.c src/gdevpdf.c src/macosx.mak src/tttypes.h src/zpacked.c src/gdevstc3.c src/gsparamx.c src/gp_dosfe.c src/iutil.c src/szlibc.c src/gsparamx.h src/gdevpng.c src/iutil.h src/zalg.c src/gzpath.h src/sfxstdio.c src/gxcdevn.h src/sjbig2_luratech.c src/gxropc.h src/gxfcid.h src/gxfont.h src/sjbig2_luratech.h src/gdevccr.c src/mkromfs.c src/gslibctx.c src/gdevdcrd.c src/unix-dll.mak src/gslibctx.h src/zbseq.c src/ziodevsc.c src/gdevdcrd.h man/de/ps2pdf.1 src/gdevl31s.c src/zfrsd.c src/iosdata.h src/gdevdjtc.c src/gdevmacpictop.h src/gxino16b.c src/gdevpcx.c src/gdevpxop.h src/zfileio.c src/slzwd.c src/gdevpdfv.c src/gxpflat.c src/gxifast.c src/dwimg.c src/fapi_ft.c src/zsysvm.c src/gsimpath.c src/dwimg.h src/gdevx.c src/gsmemlok.c lib/gs_cidtt.ps src/gsos2.rc src/gximage.c man/printafm.1 src/gdevx.h src/gsmemlok.h src/ziodevs.c src/unixansi.mak ijs/Makefile.am src/gdevpsfx.c src/gximage.h src/gscspace.c src/gdevmacttf.h src/gdevm8.c src/gdevpnga.c src/gscspace.h src/gsropc.c src/gsxfont.h src/ttfsfnt.h man/pdfopt.1 src/gsjconf.h src/gsfcid.c src/zstack.c src/gsfont.c src/gsropc.h src/gsfont.h lib/gs_ttf.ps src/isave.c doc/History6.htm src/isave.h src/gdevm64.c src/zdict.c jbig2dec/sha1.c src/gxfrac.h src/gx.h src/iccfont.c src/gdevpdfg.c src/png_.h src/gdevps.c src/gxcllzw.c src/gdevpdfg.h src/gxhttile.h doc/API.htm src/gdevpdtb.c src/gsdps1.c src/time_.h src/gdevpdtb.h src/ttfinp.c src/gshsb.c src/pcwin.mak src/vms_x_fix.h src/smtf.c src/ttfinp.h src/x_.h src/gdevtifs.c src/gshsb.h man/pf2afm.1 src/smtf.h src/gdevtifs.h src/gximono.c src/fapiufst.c Resource/Decoding/Latin1 src/szlibe.c src/gxctable.c src/main.h src/gp_vms.c src/gp_iwatc.c src/ugcclib.mak src/gxctable.h src/gdev8bcm.c src/dwsetup.h src/gp_os9.c src/gdevbj10.c src/gxclipm.c src/gdev8bcm.h src/zpaint.c src/stdpre.h src/iplugin.c src/gxclipm.h ijs/ijs_server.c src/gsgdata.c]

2007-06-05T21:28:32.480500Z Igor Melichev

Fix (shadings) : Optimize path manipulations for shading fill (continued 3).

DETAILS :

This patch finaly removes gs_shading_fill_path and its relatives.
Also gx_dc_shading_path_add_box is now private.
This change is algorithmically equivalent.

[src/gsptype2.c src/gsshade.c src/gsptype2.h src/gsshade.h src/gscolor3.c]

2007-06-05T21:10:17.034292Z Igor Melichev

Fix (shadings) : Optimize path manipulations for shading fill (continued 2).

DETAILS :

This is the 2nd step for the elimination of gs_shading_fill_path.
It excludes that function from high level devices.

After the last patch, ps2write is only device that calls gs_shading_fill_path
while converting a shading into an image.
This patch replaces that call with a call to gs_shading_do_fill_rectangle.

This patch also fixes the revision 8017 regression
with the change to gdevpdfi.c .

Minor changes :

1. lcvd_fill_rectangle_shifted_from_mdev appears to be same as lcvd_fill_rectangle_shifted.
   Removing the 1st one.

2. path_scale appears almost same as gx_path_scale_exp2_shared.
   Removing the 1st one.

3. In gdevpdfd.c, when the scale isn't dividing by 4,
   the old code chooses a smaller scale by X.
   The new code dies by Y for a better view.
   It may cause minor differences in raster.
   
4. We're not sure why lcvd_get_clipping_box_from_target was used sometimes.
   It looks incorrect. Replaced with lcvd_get_clipping_box_shifted_from_mdev. 

5. gx_cpath_scale_exp2_shared didn't scale list->xmin, list->xmax.

6. gx_cpath_copy is defined and not used.
   Saving it from a dead branch, because it may be useful in future.

[src/gsptype2.c src/gsshade.c src/gxcpath.c src/gxpath.h src/gdevpdfd.c src/gsshade.h src/gxfill.c src/devs.mak src/gdevpdfi.c]

2007-06-03T22:33:12.851834Z Igor Melichev

Fix (shadings) : Optimize path manipulations for shading fill (continued).

DETAILS :

The last patch breaks 'clippath'. Fixing it now.

[src/gxcpath.c]

2007-05-31T17:25:52.270926Z Igor Melichev

Fix (shadings) : Optimize path manipulations for shading fill.

DETAILS :

This partially improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

While filling a shading, the old code 
converts the clipping path into a path, then 
converts it to a clipping path for intersecting it
with the filling path and with the shading BBox.
These manipulations are neccessary due to the
interface restrictions for gs_shading_fill_path,
which doesn't pass a clipping path.
It causes (1) a bad performance and (2)
a wrong fill adjustment, because the conversion 
of a path to a clipping path and back to path 
is not identity due to fill adjustment.

The new code is a 1st step for the elimination of gs_shading_fill_path.
This patch excludes this function for raster devices.
Excluding it for higth level devices will be a next step.

The new code moves path manipulation outside the
shading color painting. Now all 3 pathes
(the filling path, the clipping patrh, and the shading BBox)
are processed in gxfill.c . The painting 
is done with gs_shading_do_fill_rectangle,
which does not manipulate with pathes.

The patch modifies gx_image_fill_masked_end
to comply with the new inplementation of
gs_shading_do_fill_rectangle when a mask
is converted into a clipping path. 

Another optimization avoids the generation
of a filling path for 'shfill'.
Accorgong to PLRM, shfill deals with clipping path,
but it was converted into a path due to 
internal Ghostscript constraint for the device interface.
When the device implements fill_path with
the default method gx_default_fill_path,
the conversion to a path is not necessary.

To make use of this fact for optimization, the graphics library
needs to know, whether the output device uses the default
function gx_default_fill_path. This patch introduces a new response
for pattern_manage, which is named 'pattern_manage__shfill_doesnt_need_path'.
The device must respond with 1 if it does not need a path.
The patch provides implementations for raster devices and
for forwarding devices. If some device provides an instandard
fill_path method, the optimization won't work for it
(i.e. it will work as before - will recieve a path for shfill)
unless it provides a proper response to pattern_manage__shfill_doesnt_need_path . 

A minor change to gdevpdfb.c fixes a paranoid compiler warning
about a possible use of unubnitialized data.

[src/lib.mak src/gsptype2.c src/gsshade.c src/gxcpath.c src/gdevdflt.c src/gxpath.h src/gdevpdfb.c src/gsptype2.h src/gsshade.h src/gximask.c src/gdevnfwd.c src/gxfill.c src/gxdevcli.h src/gscolor3.c]

2007-05-30T06:05:43.128239Z Ray Johnston

Change built-in compression threshold for memory based clist to
improve performance.

DETAILS:

The (example) compression threshold used with BAND_LIST_STORAGE=memory
is much to small to represent current embedded devices (where we expect
to not have a disk). On one customer's (#951) performance test files,
this change shows an overall 9.2% performance increase, ranging as high
as 20% on one file. For this test suite, even 22M is enough to avoid
compression.

The intent is that the compression threshold be a dynamic value that
uses current "real time" memory available in the printer rather than
some arbitrary fixed value. If the clist writer logic waits for all
potential renderer/reader tasks to stop and free their clist RAM,
then the need to compress becomes even less likely.

[src/gxclmem.c]

2007-05-28T18:47:29.004635Z Ray Johnston

Fix for Segv with psdcmyk device when a job specifies DeviceGray.
Test file 477-04.ps, Bug #689179.

DETAILS:

Thanks for this patch from "fatty" at po'twenty-nine'.lcv.ne.jp (email
mangled to avoid this being harvested for spam.

[src/gdevpsd.c]

2007-05-28T16:58:07.064568Z Alex Cherepanov

Fix indeterministic behavior in fuzzy raster match that can cause premature
exit and miss all the differences. Encountered on GNU+Linux, i686, GCC 4.1.2.

[toolbin/tests/fuzzy.c]

2007-05-28T05:35:14.685193Z Ray Johnston

Primarily fix for wtsimdi problem with wts dithering phase shift at
band boundaries (add band_offset_x, band_offset_y), adding band_offset_x
and band_offset_y to the device structure and corresponding initializer
changes. Also clean up gdevwts.c MSVC warnings, and add a fast check to
gdevbit.c for /dev/null (mirroring a much older change for Windows
"nul:" device) OutputFile that aids in benchmarking. Fixes bug #689245
for customer #951.

DETAILS:

Running with the wtsimdi device at default banding now matches the
results with a single band (the wtsimdi device sets BandingAlways,
so this can only be verified if the -dBandHeight= and -dBufferSpace=
options are set large enough for a full page.

[src/gdevwts.c src/gxdevice.h src/gdevbit.c src/gxclread.c src/gxdevcli.h]

2007-05-28T05:13:25.622030Z Ray Johnston

Change names of some functions so that NOPRIVATE still works.

[src/gdevdevn.c]

2007-05-27T19:15:04.334298Z Ray Johnston

Use standard __WIN32__ predefined macro along with NT to identify
Microsoft compiler based builds.

[imdi/arch.h]

2007-05-27T19:11:52.872937Z Ray Johnston

Add missing default definition of IMDI source. Add conditional
to watcw32.mak to allow build command line override.

[src/openvms.mak src/watcw32.mak]

2007-05-27T19:03:52.349026Z Ray Johnston

Fix missing dependencies for the witsimdi.dev

[src/devs.mak]

2007-05-27T18:51:35.172106Z Igor Melichev

Fix (shadings) : Account inner poles for computing a tensor shading flattening.

DETAILS : 

While computing the neccessary decomposition level by
the parameter u, the old code ony accounted the curvity
of the patch boundary. However tensor patches may have 
a very curved interior with a slightly curved boundary.
This patch improves the raster in such cases.

[src/gxshade6.c]

2007-05-27T17:59:43.657554Z Igor Melichev

Fix : More tolerance for bogus tintTransform.

DETAILS : 

Bug 688584 provides a test case, when tintTransform
replaces an extra value on operand stack. 
It allows to know whether tintTransform is called.
We believe it is an incorrect Postscript,
but the file is created QuarkXPress: pictwpstops filter 1.0,
from customer 582, so we need to be tolerant.

[lib/gs_devn.ps]

2007-05-27T16:39:19.788230Z Igor Melichev

Fix (shadings) : Optimize filling a radial shading extension.

DETAILS : 

This partially improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

The test case includes multiple radial shadings, 
which paint an extansion only.
This patch optimizes the case when the paint area is
strongly inside the radial shading extension.
In this case the shading rasterization is replaced with
painting a pure color.

1. The new function R_fill_rect_with_const_color is the main worker.
2. The old patch_color_to_device_color function is renamed into 
   patch_color_to_device_color_inline.
3. patch_color_to_device_color is made public for R_fill_rect_with_const_color.

[src/gxshade4.h src/gxshade1.c src/gxshade6.c]

2007-05-26T13:13:33.983826Z Alex Cherepanov

Dont't enumerate /Threads attribute when it has null value.
Bug 689250

[lib/pdfopt.ps]

2007-05-24T22:05:57.168544Z Igor Melichev

Fix (shadings) : A bug in tensor patch size formula caused extra or missewd subdivisions.

DETAILS : 

See the formula for L.
Also inserted some debug drawing, which are disabled.

As a secondary effect, this patch may close problems
related to wedge vertex buffer overflow.

[src/gxshade6.c]

2007-05-24T18:46:03.324950Z Igor Melichev

Fix : Remove a redunDan Cobyt definition of gs_error_interrupt.

DETAILS : 

Also fixed MSVC warning in gsncdummy.c .

[src/int.mak src/interp.c src/ierrors.h]

2007-05-24T18:06:57.635194Z Igor Melichev

Fix (shadings) : Reuse shadings while a PDF interpretation.

DETAILS : 

Bug 689211 "PDF interpreter creates redunDan Cobyt shadings".

This partially improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

The test case defines 79 shadings. While interpreting it 
the old code calls zbuildshading2 9600+ times.

1. Improved resolveshading with reusing old shadings (pdf_draw.ps).
2. Improved 'sh' with reusing old shading dictionaries (pdf_draw.ps).
3. Renamed gx_currentciecaches with gx_unshare_cie_caches,
   because the old name does not comply to the function body.
4. Defined a new function gx_currentciecaches.
5. The macro CIE_CHECK_RENDERING is replaced with a new function 
   gx_cie_check_rendering_inline. The new code also checks 
   the consistency of cie_joint_caches with the color space
   by checking the id, and requests refilling the cache if necessary.
   Note it can cause the PS interpreter callout with EncodeLMN, etc.
6. IMPORTANT: The new field gs_shading_params_t::cie_joint_caches
   saves the pointer to gs_state::cie_joint_caches.
   It is used in .shfill - see zshade.c .
   Debugged with Bug688631.pdf .
7. NOTE: *gs_shading_params_t::cie_joint_caches may be left unreleased
   when the shading releases. The garbager will release it.
   This happens with PS interpreter only.
8. NOTE: We do not make cie_joint_caches be a property of color space,
   rather it would look natural. The reason is that this large structure 
   is needed to save with shadings only. Saving it for any color space
   would spend too big RAM.
9. NOTE: Due to historic reason gs_setcolorspace leaves cie_joint_caches
   unchanged. It may cause problems when gx_color_space_needs_cie_caches
   is true. Postscript interpreter has a special workaround for it in
   gs/lib/gs_cspace.ps . Other interpreters may need an additional support
   when they use CIE spaces directly or indirectly. 
   Likely this feature is not properly documented.
10. NOTE: The change to pdf_draw.ps cases an additional RAM expence for
   PDF interpretation. It is caused by saving all built shadings
   until the document finishes. It includes the expence for extra copies of
   cie_joint_caches. The new procedure .free_page_resources frees
   shadings from page Resources after page finishes.
   However this patch does not implement that for 
   other local resources, such as form Resources, etc.
   It may need a further improvement.

[lib/pdf_main.ps src/lib.mak src/gsshade.c src/zshade.c src/gscie.h src/int.mak src/zcrd.c src/gsshade.h src/gxcie.h lib/pdf_draw.ps src/gsciemap.c src/gsicc.c src/gscie.c src/gscolor3.c]

2007-05-23T23:33:45.298718Z Ray Johnston

Change the .ppm output from the wtsimdi device to write a P6 with
a max value of 255 (instead of 1). Some viewers assume a max value
of 255, so the previous output looked all black. A max value of 255
works with all known viewers.

[src/gdevwts.c]

2007-05-23T20:27:42.841035Z Alex Cherepanov

Add support for /UserUnit. Also fix some related bugs that stayed
in the way while testing it. Patch from SaGS.
Bug 688124 from customet 870, bug 688359.

[lib/pdf_main.ps doc/Use.htm lib/pdf_draw.ps]

2007-05-23T18:51:55.128091Z Alex Cherepanov

Fix handling of uncompressed contect streams with incorrect Length parameter
or missing endstream operator. Use operator obj as one more way to detect
the end of the stream. Bug 689239.

[lib/pdf_main.ps lib/pdf_draw.ps]

2007-05-22T20:50:15.623551Z Timothy Osborn

Adding missing header line.

DETAILS:

gsncdummy.c needs to include ierrors.h in order to use errors defined therein.

[src/gsncdummy.c]

2007-05-21T22:08:07.611194Z Ralph Giles

Define IMDISRCDIR in the top level makefiles and pass this through to
the compile lines in devs.mak. This the the correct fix for the issue
addressed in revisions 7970 and 7971.

[src/bcwin32.mak src/ugcclib.mak src/gs.mak src/macosx.mak src/Makefile.in src/dvx-gcc.mak src/msvc32.mak src/unix-gcc.mak src/unixansi.mak src/macos-mcp.mak src/msvclib.mak src/devs.mak src/os2.mak src/watclib.mak]

2007-05-21T15:11:52.121008Z Alex Cherepanov

Fix uninitialized cxs.present as detected By Valgring on Bug687846.ps test file
and nullpage device.

[src/zchar1.c]

2007-05-21T14:48:53.469788Z Till Kamppeter

Corrected imdi path

[src/devs.mak]

2007-05-21T14:38:22.247440Z Till Kamppeter

Made the definitions of IMDISRC and IMDISRCDIR platform-independent and also
working when the source tree is in a directory not named "gs".

[src/devs.mak]

2007-05-21T06:40:28.742110Z Henry Stiles

Back out the changes associated with 7715 and 7773.  This fix is
probably wrong, it only masks an underlying problem by disabling high
level images and it slows down many jobs.  I believe the problem was
misunderstood from the outset but I don't clearly understand the svn
change log, it reads:

   Fix for banding of some images not matching non-banding output.
   Added check for an invariant that the translation matches in the 
   two matrixes used in rendering.  In this case the non-high level image
   path is taken.  A better solution would be to a single matrix, as this will
   increase the display list size for some files.

It is not clear what "single matrix" means.  There is one ctm
associated with the image and one associated with the graphics state,
both must be used by either the high level image code or the default
image machinery.  The change checked that graphics (imager) state ctm
translation components matched the translation components that map
image space to device space.

[src/gxclimag.c]

2007-05-19T17:08:04.593395Z Alex Cherepanov

Remove unused and incorrect definitions of stdin, stdout, stderr buffer sizes.

[src/iminst.h]

2007-05-16T21:04:35.033996Z Igor Melichev

Fix (shadings) : Shorten a radial shading when it is larger than paint area.

DETAILS : 

This partially improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

The test case includes multiple radial shadings, 
which are 100+ times larger than the path bbox.
This patch replaces such shadings with a smaller shading,
which paints the bbox with same color
(a minor color difference is possible due to rounding errors).

See comment in code.

[src/gxshade1.c]

2007-05-16T02:56:12.508768Z Alex Cherepanov

Don't issue a warning for PDF TrueType fonts without /Encoding because
it is optional even for non-symbolic fonts. Bug 689205.

[lib/pdf_font.ps]

2007-05-15T13:12:02.777397Z Alex Cherepanov

Use operator oforce instead of exec to evaluate indirect references to
/OutputIntents members for consistency with the existing code. Bug 689233.

[lib/pdf_main.ps]

2007-05-14T18:51:03.604183Z Ralph Giles

Correct keyword substitution.

[src/gdevwts.c]

2007-05-14T16:36:23.969410Z Igor Melichev

Fix (PDF interpreter) : Failed with an indirect OutputIntents element.

DETAILS : 

Debugged with running debug build of ppmraw with the test file of Bug 689189.
The test case includes this :

	/OutputIntents[1135 0 R]

[lib/pdf_main.ps]

2007-05-14T15:22:29.642029Z Ralph Giles

Revert the gs-esp merge down, as there are still some build issues.

[contrib/gdevmd2k.c contrib/gdevxes.c contrib/gdevgdi.c src/configure.ac contrib/lips4 contrib/eplaser contrib/gdevhl12.c src/gdevlj56.c src/gdevdljm.c src/lib.mak contrib/gdevcd8.c src/gdevpx.c src/gdevl256.c contrib/contrib.mak src/gdevvglb.c src/gdevdljm.h contrib/gdevcd8.h cups src/unix-gcc.mak contrib/gdevdj9.c src/gdevcdj.c src/gdevpxut.c contrib/chp2200 contrib/gdevlx50.c contrib/gdevlx32.c contrib/gdevop4w.c src/gdevpxut.h lib/gs_init.ps src/gdevlbp8.c contrib/gdevbjc_.c contrib/opvp contrib/japanese contrib/gdevbjca.c src/gdevxalt.c contrib/lxm3200-tweaked contrib/gdevbjc_.h contrib/gomni.c src/contrib.mak src/devs.mak lib/gs_setpd.ps contrib/pcl3 contrib/gdevlx7.c contrib/gdevln03.c src/gdevdjet.c src/gconf.c contrib/defs.h src/gs.mak contrib/uniprint src/Makefile.in src/unix-aux.mak contrib/md2k_md5k src/unixinst.mak contrib/epson740 src/gp_unix.c]

2007-05-14T09:34:52.443458Z Till Kamppeter

Merged in extra functionality of ESP Ghostscript (from branch "gs-esp-gpl-merger")

[contrib/gdevmd2k.c contrib/gdevxes.c contrib/gdevgdi.c src/configure.ac contrib/lips4 contrib/eplaser contrib/gdevhl12.c src/gdevlj56.c src/gdevdljm.c src/lib.mak contrib/gdevcd8.c src/gdevpx.c src/gdevl256.c contrib/contrib.mak src/gdevvglb.c src/gdevdljm.h contrib/gdevcd8.h cups src/unix-gcc.mak contrib/gdevdj9.c src/gdevcdj.c src/gdevpxut.c contrib/chp2200 contrib/gdevlx50.c contrib/gdevlx32.c contrib/gdevop4w.c src/gdevpxut.h lib/gs_init.ps src/gdevlbp8.c contrib/gdevbjc_.c contrib/opvp contrib/japanese contrib/gdevbjca.c src/gdevxalt.c contrib/lxm3200-tweaked contrib/gdevbjc_.h contrib/gomni.c src/contrib.mak src/devs.mak lib/gs_setpd.ps contrib/pcl3 contrib/gdevlx7.c contrib/gdevln03.c src/gdevdjet.c src/gconf.c contrib/defs.h src/gs.mak contrib/uniprint src/Makefile.in src/unix-aux.mak contrib/md2k_md5k src/unixinst.mak contrib/epson740 src/gp_unix.c]

2007-05-12T18:25:57.733948Z Alex Cherepanov

Avoid a Valgrind warning about uninitialized memory and fix a potential
memory access violation where look-up of the last value of the interpolation
table caused access past the end of the table.

[src/gscie.h]

2007-05-12T17:09:18.524416Z Alex Cherepanov

Avoid a Valgrind warning and fix an error in debugging statistics collection,
where 0-th element of the table can be used before being assigned a value.

[src/gdevm24.c]

2007-05-12T15:46:44.945538Z Alex Cherepanov

Avoid a Valgrind warning about overlapping argumemts of memcpy().
Don't assign a structure to itself.

[src/gxhintn.c]

2007-05-12T14:55:02.729921Z Alex Cherepanov

Fully initialize stream_jpxd_state structure to avoid Valgrind warnings and
bogus results when the state is printed on error. Bug 688877.

[toolbin/vg_bugs.supp src/sjpx.c]

2007-05-12T10:05:30.414975Z Russell Lang

Recognise another variant of nmake when building for Windows x64 with MSVC 8
Restore documentation about building for Windows 64-bit,
erroneously removed by an earlier commit.

[doc/Make.htm src/msvc32.mak]

2007-05-11T22:29:09.072983Z Ralph Giles

Bump the version number and date after the 8.57 release. We're skipping
to 8.60 for the next release because of some reorganization to the 
source tree and the merge of the ESP Ghostscript patch set, both 
scheduled for the next release.

[doc/News.htm lib/gs_init.ps src/gscdef.c src/version.mak]

2007-05-11T18:51:29.956384Z Ralph Giles

Update release notes and changelog.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

Version 8.57 (2007-05-11)

This is a stable release in the 8.5x series of Ghostscript. In addition to the usual bug fixes, there are specific performance and quality improvements in the areas of patterns, shading and image filtering.

Also new in this release is an implementation of the Well Tempered Screening algorithm in an output device, using Graeme Gill's IMDI library for efficient color mapping.

The following bugs were open at the time of release:

226943, 430175, 465936, 493348, 530011, 535932, 578865, 592160, 610478, 614298, 626295, 686747, 686853, 686865, 687011, 687039, 687084, 687095, 687108, 687146, 687193, 687196, 687257, 687271, 687280, 687295, 687297, 687303, 687327, 687342, 687345, 687346, 687375, 687397, 687414, 687445, 687475, 687484, 687492, 687514, 687520, 687531, 687536, 687559, 687561, 687593, 687595, 687608, 687630, 687650, 687666, 687674, 687677, 687680, 687695, 687697, 687702, 687715, 687721, 687728, 687729, 687731, 687775, 687780, 687782, 687793, 687796, 687805, 687814, 687844, 687850, 687887, 687903, 687904, 687907, 687915, 687931, 687950, 687957, 687960, 687970, 687974, 687978, 687981, 687983, 687988, 688006, 688007, 688020, 688022, 688024, 688026, 688032, 688035, 688036, 688042, 688054, 688058, 688061, 688064, 688066, 688075, 688081, 688095, 688124, 688129, 688130, 688134, 688151, 688152, 688159, 688166, 688184, 688187, 688200, 688203, 688204, 688207, 688210, 688215, 688227, 688239, 688243, 688267, 688269, 688280, 688282, 688283, 688288, 688295, 688311, 688312, 688317, 688318, 688320, 688323, 688332, 688333, 688337, 688339, 688342, 688358, 688359, 688360, 688361, 688363, 688372, 688375, 688378, 688386, 688387, 688389, 688395, 688400, 688410, 688413, 688427, 688428, 688429, 688434, 688436, 688437, 688440, 688446, 688448, 688468, 688473, 688474, 688475, 688477, 688479, 688483, 688490, 688493, 688495, 688500, 688515, 688517, 688518, 688526, 688528, 688532, 688533, 688539, 688540, 688542, 688557, 688565, 688573, 688580, 688581, 688584, 688588, 688598, 688601, 688604, 688605, 688610, 688616, 688617, 688619, 688621, 688626, 688627, 688633, 688634, 688636, 688637, 688638, 688643, 688646, 688647, 688651, 688653, 688655, 688671, 688673, 688674, 688683, 688696, 688697, 688699, 688708, 688709, 688710, 688711, 688712, 688714, 688717, 688728, 688730, 688731, 688734, 688736, 688738, 688739, 688757, 688762, 688770, 688774, 688777, 688778, 688783, 688796, 688797, 688806, 688807, 688808, 688811, 688813, 688815, 688818, 688829, 688830, 688834, 688843, 688845, 688846, 688870, 688871, 688872, 688876, 688877, 688878, 688899, 688903, 688904, 688907, 688908, 688909, 688914, 688915, 688916, 688917, 688918, 688919, 688923, 688926, 688928, 688933, 688934, 688940, 688942, 688943, 688945, 688949, 688952, 688958, 688965, 688969, 688970, 688976, 688977, 688978, 688979, 688981, 688983, 688986, 688990, 688992, 688994, 688999, 689002, 689003, 689011, 689013, 689014, 689022, 689025, 689028, 689031, 689032, 689036, 689040, 689044, 689046, 689048, 689050, 689053, 689055, 689056, 689057, 689058, 689060, 689065, 689068, 689070, 689076, 689077, 689078, 689080, 689081, 689085, 689090, 689092, 689093, 689094, 689098, 689101, 689103, 689104, 689106, 689107, 689111, 689114, 689115, 689116, 689117, 689123, 689127, 689128, 689129, 689130, 689132, 689133, 689136, 689137, 689138, 689145, 689146, 689147, 689148, 689150, 689153, 689154, 689155, 689159, 689161, 689164, 689167, 689169, 689170, 689172, 689174, 689175, 689179, 689181, 689182, 689184, 689186, 689188, 689189, 689195, 689198, 689199, 689205, 689206, 689209, 689210, 689211, 689212, 689215, 689216, 689221, 689222, 689223, 689224, 689225, 689230.

Incompatible changes

There are no known incompatible changes at this point.

Changelog

2007-08-01T21:20:57.253476Z ray

Fix problem seen with stcolor device where the get_color_mapping_procs
device proc was NULL, causing SEGV. Bug #689371.

DETAILS:

The fix was local to gdevstc.c. The other modules were changed to
add protection in case other devices (such as all of the new devices
in contrib) don't manage to change the get_color_mapping_procs from
the usual default of NULL in the device structure. Rather than
dprintf or error messages that may be supressed with #if DEBUG.
I elected to use eprintf.

Note that the get_color_mapping_procs is usually set up by gdevdflt
gx_device_fill_in_procs, but there are several cases where we don't
know what to do, so we set the gx_error_get_color_mapping_procs.

The detection in gs_fillpage will usually result in a single error
message then we return gs_error_Fatal (-100).

[src/gdevdflt.c src/gdevstc.c src/gxcmap.c src/gspaint.c]

2007-08-01T19:18:12.034589Z giles

Update release date and product name for final release.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm man/ps2epsi.1 doc/Install.htm src/gscdef.c doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Testing.htm doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2007-08-01T17:19:50.181574Z ray

Fix for gv hang, where an application sends (less than 1023 bytes)
PostScript and expects a response. AppleTalk PAP and some other
interactive viewer front ends may run into this. Bug #689237.

DETAILS:

The autosense is still sort of fragile in that we only process
PostScript immediately without waiting for the .peekstring of
1023 bytes to complete if it begins with "%!" or "%%". The
check for "%%" is needed for gv, conventionally "%!" is more
widely used. Note this really only affects applications using
gs as a process getting data from stdin and expecting immediate
action (response or other processing).

Also note that the %! or %% is only looked for as the first
two characters so that the presence of this in garbage before
an actual PDF won't cause confusion.

[lib/pdf_main.ps]

2007-08-01T04:10:13.989117Z alexcher

Fix a misleading typo in an error message: s/UseCUEColor/UseCIEColor/

[src/gdevpdfp.c]

2007-08-01T04:01:06.081994Z alexcher

Remove inappropriate PNG_CONST qualifier from a few libpng arrays, where it
adds 2nd const qualifier, which is rejected by MSVC 6. Bug 689383.

[libpng/pngtrans.c libpng/pngerror.c]

2007-07-31T14:19:45.536400Z alexcher

Use a correct name for the absolute colorimetric rendering intent. Change the
encoding of the rendering intents in the graphic state to use ICC numbers
from Table 18 (section 6.1.11) instead of the PDF order to reduce re-coding
and confusion. Bug 689377.

[src/gxistate.h lib/pdf_ops.ps src/gsstate.c src/zcolor3.c]

2007-07-31T03:31:13.074828Z giles

Update changelogs for the release candidate.

[doc/Changes.htm doc/History8.htm doc/News.htm doc/Details8.htm doc/Details.htm]

2007-07-30T20:13:56.963379Z giles

Update the libpng version in the top level makefiles to match the new 
1.2.18 source.

[src/bcwin32.mak src/openvms.mak src/ugcclib.mak src/macosx.mak src/watcw32.mak src/dvx-gcc.mak src/msvc32.mak src/unix-gcc.mak src/unixansi.mak src/macos-mcp.mak src/msvclib.mak src/all-arch.mak src/os2.mak src/watclib.mak]

2007-05-11T17:06:15.247707Z Ralph Giles

Update the product name for release.

[src/gscdef.c]

2007-05-11T17:03:51.074953Z Ralph Giles

Update release date.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm doc/Maintain.htm man/ps2epsi.1 doc/Install.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Testing.htm doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm man/ps2ps.1 doc/Ps2epsi.htm doc/History4.htm man/ps2pdfwr.1 doc/History5.htm doc/History6.htm]

2007-05-11T17:02:29.404037Z Ralph Giles

Update the libpng version listed in the top-level makefiles.

[src/bcwin32.mak src/openvms.mak src/ugcclib.mak src/macosx.mak src/watcw32.mak src/dvx-gcc.mak src/msvc32.mak src/unix-gcc.mak src/unixansi.mak src/macos-mcp.mak src/msvclib.mak src/all-arch.mak src/os2.mak src/version.mak src/watclib.mak]

2007-05-11T16:53:33.148016Z Ralph Giles

Install the libpng 1.2.16 source release.

[libpng]

2007-05-11T16:48:03.952583Z Ralph Giles

Move the included libpng out of the way.

[libpng]

2007-05-11T15:33:41.202626Z Ralph Giles

Correct the keyword substitution property key.

[toolbin/pscet_status.pl]

2007-05-11T13:33:33.031639Z Ralph Giles

Try again to fix the Id keyword line.

[toolbin/pscet_status.pl]

2007-05-11T09:39:41.369263Z leonardo

Fix (shadings) : Removing a dead code from radial shadings.

DETAILS : 

It's a rudiment from an antique annula-based radial shading algorithm.
R_fill_state_t was filled and never used.
This change is algorithmically equivalent.

[src/gxshade1.c]

2007-05-09T21:58:25.788526Z Ralph Giles

Covert gdevwts.c to native line endings and turn on keywork 
substitution.

Also convert a C++-style comment. It looks like this line
can actually be removed.

[src/gdevwts.c]

2007-05-09T21:51:57.598496Z Ralph Giles

Add Id lines and associated properties to some recent script additions.

[toolbin/ocheck.py toolbin/pscet_status.pl]

2007-05-09T21:47:00.539315Z Ralph Giles

Add recent new files to the documenation index.

[doc/Develop.htm src/gscicach.c src/gscicach.h]

2007-05-09T19:55:01.401845Z Alex Cherepanov

Make AcroForm rendering a non-default option because it is not yet 
fully implemented and causes raster differences. Bug 689197.

[lib/pdf_main.ps doc/Use.htm]

2007-05-09T18:45:56.177217Z Ralph Giles

Point to bugzilla instead of the old bug-report email address in the 
help text. Also remove the unused constant defining the address.

[src/imainarg.c]

2007-05-09T15:45:54.143921Z leonardo

Fix (shadings) : The decomposition limit must depend on resolution.

DETAILS : 

This partially improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

The old code limits the decomposition of a shading with 1 pixel.
It gives a good precision for low resolution devices,
such as display with 72dpi. However for high resolution devices the
decomposition limit may be bigger, because tinny parts are not visible.
Now we make it be dependent on the device resolution.
It speeds up the high resolution rendering with quickly varying colors.
The worker formula is :

	decomposition_limit = float2fixed(HWResolution / 72)

With 300 dpi the file "self-intersect2.ps" renders a few worse 
near the self-intersection. It may be visible when viewing the 
ppmraw output with a monitor. We think it's a reasonable tradeof
for the performance. Actually the monitor performs 
a significant zoom when viewing "actual pixels",
because the monitor's resolution is much smaller.
The quality degradation shouldn't be visible with a 300 dpi printer.

[src/gxshade4.h src/gxshade6.c]

2007-05-09T10:12:29.054433Z Till Kamppeter

Protect expression "$Id: ... $" against being replaced by SubVersion (bug #689093).

[doc/gsdoc.el]

2007-05-09T06:37:44.288003Z Marcos H. Woehrmann

Added entries to alias Arial to ArialMT and TimesNewRoman to TimesNewRomanPSMT.  This is useful when running on 
windows.

[lib/Fontmap.GS]

2007-05-09T03:21:39.704394Z Ralph Giles

Temporarily revert the KRGB support patch for the IJS device. There
were some build problems, and also there's a known segfault in some
situations. This will be worked on after the 8.57 release.

[src/gdevijs.c]

2007-05-08T19:47:48.994751Z Ralph Giles

Implement KRGB raster support in the IJS device. Patch from David 
Suffield.

Details:

This patch implements a separate black plane and does simple text and 
line art detection based on the drawing source. This results in cleaner 
output for IJS drivers which support it.

[src/gdevijs.c]

2007-05-08T18:26:47.239521Z Till Kamppeter

Makes ijs/ working with automake 1.10

DETAILS:

This is a pure bug fix, so lets get this into 8.57.

[ijs/autogen.sh]

2007-05-08T18:23:54.589216Z Till Kamppeter

Fixed file properties

[src/version.mak]

2007-05-08T18:13:10.044227Z Till Kamppeter

Back out everything after rev 7909

[contrib/gdevmd2k.c contrib/gdevxes.c contrib/gdevgdi.c src/configure.ac contrib/lips4 contrib/eplaser contrib/gdevhl12.c src/gdevlj56.c ijs/autogen.sh src/gdevdljm.c src/lib.mak contrib/gdevcd8.c src/gdevpx.c src/gdevl256.c contrib/contrib.mak src/gdevvglb.c src/gdevdljm.h contrib/gdevcd8.h contrib/cups src/unix-gcc.mak contrib/gdevdj9.c src/gdevpxut.c src/gdevcdj.c contrib/chp2200 contrib/gdevlx32.c contrib/gdevlx50.c contrib/gdevop4w.c src/gdevpxut.h lib/gs_init.ps src/gdevlbp8.c src/version.mak contrib/opvp contrib/gdevbjc_.c contrib/japanese contrib/gdevbjca.c src/gdevxalt.c contrib/lxm3200-tweaked src/version.mak.in contrib/gdevbjc_.h contrib/gomni.c src/contrib.mak src/devs.mak lib/gs_setpd.ps contrib/pcl3 contrib/gdevlx7.c contrib/gdevln03.c src/gdevdjet.c src/gconf.c contrib/defs.h src/gs.mak contrib/uniprint src/Makefile.in src/unix-aux.mak contrib/md2k_md5k src/unixinst.mak contrib/epson740 src/gp_unix.c]

2007-05-08T17:44:46.931200Z Till Kamppeter

Makes ijs/ working with automake 1.10

[ijs/autogen.sh]

2007-05-08T17:43:12.186735Z Till Kamppeter

Added duples support to the PCL-XL ("pxlmono"/"pxlcolor") output devices

[src/gdevpx.c src/gdevlj56.c src/gdevpxut.c src/gdevpxut.h]

2007-05-08T17:41:29.378446Z Till Kamppeter

Support for the CUPS Raster output device in the lib/*.ps files

DETAILS:

CUPS-related changes, overtaken from ESP Ghostscript:

Define option "-dNOMEDIAATTRS" to turn off the default (but
unimplementable) media selection policies for setpagedevice. This is
used by CUPS to support the standard Adobe media attributes. Without
this option the behavior of Ghostscript stays as before.

Due to the fact that it is not possible to properly implement the
selection policies from a Ghostscript driver, the default policy was
changed to "7" (impose) to avoid numerous problems with printing
within CUPS...

Bug fix:

Martin Lottermoser, author of the "pcl3" driver writes in
contrib/pcl3/doc/gs-mods.txt, section C1:

There is a bug in ghostscript's default configuration for the
undercolour removal and black generation functions. It shows up when
printing PostScript documents using the RGB colour space ("setrgbcolor" or
"sethsbcolor") on a device where the CMYK space is the native colour space;
this is the case for pcl3 if you specify "-sColourModel=CMYK". The bug
results in black being printed as a mixture of cyan, magenta, and yellow.

The bug is simply fixed by replacing the line
   { pop 0 } dup setblackgeneration setundercolorremoval
with the following line:
   {} dup setblackgeneration setundercolorremoval

[lib/gs_setpd.ps lib/gs_init.ps]

2007-05-08T17:30:26.894961Z Till Kamppeter

src/version.mak --> src/version.mak.in (part of build system patch)

[src/version.mak.in src/version.mak]

2007-05-08T17:29:31.725620Z Till Kamppeter

Build system extensions for support of CUPS Raster, OpenPrinting
Vector, X11 driver modularizationm, and for easy selection of drivers

DETAILS:

The build system has all necessary checks added for the additional
drivers (especially for CUPS Raster and OpenPrinting Vector) and has
functionality to easily select the drivers to be built in. Especially
one can also build a Ghostscript with none of the extra drivers from
the contrib/ directory by supplying the option "--disable-contrib" to
"./configure".

Other additional options are "--with-drivers" to select drivers and
"--with-fontpath" to easily add the system's font locations (call the
system's Ghostscript with "gs -h" and add the paths shown in the end
of the output),

"./configure" also auto-detects whether the X drivers can be
modularized.

For correct building of the CUPS filters the definition of the version
number was moved from src/version.mak to ./configure (or
src/configure.ac).

The build rules for Omni are removed from src/contrib.mak, as
gdevomni.c is present in the contrib/ directory. So its build rules
belong into contrib/contrib.mak.

Use "./configure --disable-contrib" to make a Ghostscript without
anything from the contrib/ directory, for example for commercially
licensed distribution.

[src/Makefile.in src/configure.ac src/contrib.mak src/unixinst.mak src/gdevlbp8.c src/version.mak]

2007-05-08T17:16:47.444481Z Till Kamppeter

Conditionals to avoid conflicts with the drivers "bjc880j", "lips2p",
"lips4", and "lips4v" in contrib/

DETAILS:

some data structures in src/gdevlbp8.c got extended for the
above-mentioned drivers. To avoid conflicts the original structures
need to be deactivated. This patch adds the needed conditionals for
that.

[src/gdevlbp8.c]

2007-05-08T16:52:11.701719Z Till Kamppeter

All third-party built-in and Uniprint drivers listed in the OpenPrinting database

DETAILS:

To avoid the users or the distribution package maintainers to patch
Ghostscript for getting support for a certain printer model this patch
contains all known (by OpenPrinting) built-in and Uniprint printer
drivers. So compiling Ghostscript with all these drivers gives a
complete Ghostscript without need of recompilation for adding support
for a printer.

Also the OpenPrinting Vector ("opvp", "oprp") and CUPS Raster output
("cups") are included, to have all the three current interfaces (the
third is the already included IJS) for modular drivers as required by
the upcoming LSB 3.2.

Notes:

Built-in printer drivers for Ghostscript are obsolete. Do not write
any new built-in drivers for Ghostscript. Use the interfaces IJS, CUPS
Raster, or OpenPrinting Vector for your new printer
drivers. Volunteers for moving these third-party drivers into
OpenPrinting Vector modules are welcome.

Do not compile the contrib/ directory for commercial-licensed
distribution of Ghostscript, the licenses of many of these drivers do
not allow this.

[contrib/japanese/doc/gs261j.txt contrib/japanese/dviprlib.h contrib/cups/pxlmono.ppd contrib/japanese/doc/gdevmjc.txt contrib/pcl3/doc/gs-pcl3.ref contrib/eplaser contrib/japanese/doc contrib/japanese/doc/gdevcd8.txt contrib/uniprint/Stc680pl.upp contrib/pcl3/eprn/mediasize.c contrib/pcl3/BUGS contrib/japanese/doc/README.gs550j contrib/pcl3/eprn/mediasize.h contrib/pcl3/ppd/gs-6.50.ppd contrib/pcl3/ppd/gs-pcl3-unspecold.ppd contrib/pcl3/src/contrib.mak-7.00.add contrib/lxm3200-tweaked/LICENSE contrib/lxm3200-tweaked/Z12-Z31-QuickSetup contrib/japanese/dmp_init.ps contrib/pcl3/eprn/pagecount.c contrib/chp2200 contrib/uniprint/Stc740p.upp contrib/gdevlx50.c contrib/lxm3200-tweaked/RELEASE_NOTES contrib/pcl3/src/pcl3opts.c contrib/pcl3/src/gdevpcl3.c contrib/pcl3/eprn/pagecount.h contrib/pcl3/src/pclsize.c contrib/pcl3/ps/margins-LetterRotated.ps contrib/gdevbjc_.c contrib/pcl3/ppd/gs-pcl3-hpdj400.ppd contrib/epson740/printerdb_rh6.0 contrib/japanese contrib/pcl3/src/pclsize.h contrib/gdevbjc_.h contrib/pcl3/ppd/gs-pcl3-hpdjportable.ppd contrib/cups/cups.mak contrib/uniprint/Stc670pl.upp contrib/cups/pxlcolor.ppd contrib/pcl3/ppd/gs-pcl3-hpdj660c.ppd contrib/pcl3 contrib/gdevlx7.c contrib/uniprint/bjc6000a1.upp contrib/pcl3/eprn/eprnrend.c.orig contrib/pcl3/ppd/gs-5.50.ppd contrib/defs.h contrib/pcl3/eprn/eprnparm.c contrib/pcl3/doc/how-to-report.txt contrib/japanese/doc/dj505j.txt contrib/japanese/gdevml6.c contrib/japanese/escp_24.src contrib/japanese/gdevlbp3.c contrib/uniprint/stc740ih.upp contrib/eplaser/gdevescv.c contrib/uniprint/Stc680p.upp contrib/uniprint/s400a1.upp contrib/epson740/upp-HowTo-to-be contrib/gdevxes.c contrib/japanese/gdevj100.c contrib/eplaser/gdevescv.h contrib/lips4/gdevlips.c contrib/japanese/doc/gdevj100.txt contrib/lips4/gdevlprn.c contrib/uniprint/Stc760pl.upp contrib/lips4/gdevlips.h contrib/pcl3/ppd/fonts.ppd contrib/uniprint/Stp870p.upp contrib/uniprint/PM820p.upp contrib/pcl3/ps/dumppdd.ps contrib/pcl3/src/zmedia2.c-6.51.diff contrib/lips4/gdevlprn.h contrib/pcl3/ppd/gs-common.ppd contrib/gdevcd8.c contrib/contrib.mak contrib/pcl3/ppd/gs-pcl3-hpdj1120c.ppd contrib/japanese/doc/cdj880.txt contrib/gdevcd8.h contrib/japanese/dmp_site.ps contrib/cups/gdevcups.c contrib/pcl3/src/contrib.mak-6.50.add contrib/japanese/doc/gdevmd2k.txt contrib/gdevdj9.c contrib/cups/pstoraster contrib/japanese/doc/gdevmag.txt contrib/lips4/gdevl4r.c contrib/lxm3200-tweaked/README contrib/lips4/gdevl4v.c.orig contrib/lips4/gdevl4v.c contrib/pcl3/ps/margins-A4Rotated.ps contrib/pcl3/ppd/gs-pcl3-hpdj540.ppd contrib/pcl3/doc/notes.bbl contrib/epson740/ps-to-printer.fpi_rh5.2 contrib/pcl3/doc/notes.tex contrib/pcl3/README contrib/pcl3/LGPL contrib/pcl3/ppd/gs-6.01.ppd contrib/chp2200/AUTHORS contrib/uniprint/PM760p.upp contrib/opvp/opvp_media.def contrib/uniprint/Stc777pl.upp contrib/uniprint/Stp720pl.upp contrib/japanese/gdevnpdl.c contrib/pcl3/src/contrib.mak-5.50.add contrib/epson740/README contrib/md2k_md5k contrib/pcl3/ps/margins-Env10Rotated.ps contrib/uniprint/PM760pl.upp contrib/uniprint/Stc670p.upp contrib/japanese/gdevmag.c contrib/cups/pstopxl contrib/japanese/gdev10v.c contrib/gdevmd2k.c contrib/cups/pstoraster.in contrib/chp2200/COPYING contrib/pcl3/ppd/gs-pcl3-hpdj510.ppd contrib/uniprint/Stc740pl.upp contrib/lips4 contrib/pcl3/src/zmedia2.c-6.01.diff contrib/gdevhl12.c contrib/pcl3/ppd/gs-pcl3-hpdj550c.ppd contrib/md2k_md5k/README.jis contrib/pcl3/ppd/catppd contrib/japanese/doc/Gdevlips.htm contrib/pcl3/ppd/gs-6.51.ppd contrib/pcl3/doc contrib/pcl3/pcl3.tar.sig contrib/cups contrib/japanese/gdevespg.c contrib/japanese/gdevalps.c contrib/pcl3/NEWS contrib/japanese/doc/gdevml6.txt contrib/gdevop4w.c contrib/pcl3/ppd/README contrib/uniprint/Stc760p.upp contrib/pcl3/eprn/eprnfs.c contrib/opvp contrib/gdevbjca.c contrib/pcl3/ppd/gs-pcl3-hpdj600.ppd contrib/gomni.c contrib/uniprint/Stp720p.upp contrib/pcl3/doc/gs-mods.txt contrib/uniprint/sipixa6.upp contrib/opvp/gdevopvp.c contrib/pcl3/src/zmedia2.c-5.50.diff contrib/pcl3/src/zmedia2.c-6.50.diff contrib/pcl3/ppd/gs-pcl3-hpdj680c.ppd contrib/pcl3/eprn/eprnrend.c contrib/pcl3/ps/margins-A4.ps contrib/pcl3/src/contrib.mak-6.01.add contrib/uniprint contrib/pcl3/src/pcl3opts-de.msg contrib/japanese/doc/djgpp.txt contrib/japanese/gdevdmpr.c contrib/japanese/doc/gdevlbp3.txt contrib/pcl3/doc/pcl3opts.html contrib/japanese/doc/gdevdmpr.txt contrib/japanese/doc/gs261j.euc contrib/chp2200/INSTALL contrib/pcl3/ppd contrib/cups/pstopxl.in contrib/pcl3/src contrib/pcl3/ppd/gs-pcl3-hpdj500c.ppd contrib/uniprint/Stc777p.upp contrib/gdevgdi.c contrib/pcl3/ps/margins-EnvDLRotated.ps contrib/japanese/gdevp201.c contrib/japanese/doc/gdevp201.txt contrib/pcl3/ppd/gs-7.00.ppd contrib/pcl3/ps/margins-Letter.ps contrib/uniprint/bjc6000b1.upp contrib/pcl3/lib/if-pcl3 contrib/pcl3/eprn contrib/opvp/opvp_common.h contrib/cups/pstoraster.convs contrib/pcl3/lib contrib/pcl3/src/pclcap.c contrib/uniprint/Stp870pl.upp contrib/pcl3/doc/gs-pcl3.1 contrib/japanese/gdevfmlbp.c contrib/pcl3/src/contrib.mak-6.51.add contrib/japanese/doc/gdevalps.txt contrib/gdevlx32.c contrib/pcl3/src/pclcap.h contrib/pcl3/src/pclgen.c contrib/pcl3/ps contrib/pcl3/src/pcl3opts-en.msg contrib/uniprint/s400b1.upp contrib/japanese/doc/gdev10v.txt contrib/japanese/gdevmjc.c contrib/epson740/printerdb_rh5.2 contrib/pcl3/ppd/gs-pcl3-hpdj500.ppd contrib/pcl3/src/pclgen.h contrib/lxm3200-tweaked contrib/pcl3/doc/pcl3opts.ref contrib/uniprint/sharp.upp contrib/japanese/gdevmjc.h contrib/pcl3/src/pclscan.c contrib/pcl3/src/zmedia2.c-7.00.diff contrib/pcl3/eprn/gdeveprn.c contrib/pcl3/ps/calign.ps contrib/pcl3/src/pclscan.h contrib/gdevln03.c contrib/pcl3/ppd/gs-pcl3-common.ppd contrib/pcl3/ppd/gs-pcl3-hpdj3xx.ppd contrib/pcl3/eprn/gdeveprn.h contrib/pcl3/lib/example.mcf contrib/pcl3/src/pclcomp.c contrib/pcl3/ppd/gs-pcl3-unspec.ppd contrib/pcl3/ps/levels-test.ps contrib/pcl3/doc/pcl3opts.1 contrib/pcl3/ppd/gs-pcl3-hpdj8xxc.ppd contrib/uniprint/PM820pl.upp contrib/japanese/gdevrpdl.c contrib/epson740 contrib/japanese/doc/gdevfmlbp.txt contrib/pcl3/lib/cups-pcl3 contrib/pcl3/doc/gs-pcl3.html contrib/japanese/gdevfmpr.c contrib/pcl3/doc/reports.txt contrib/japanese/dviprlib.c]

2007-05-08T16:33:45.043492Z Till Kamppeter

Addition of support for some older japanese-market PCL Printers

DETAILS:

Adds the output devices:

dj505j: HP DeskJet 505J
ljet4pjl, lj4dithp: HP LaserJet 4V/4LJ
picty180: NEC PICTY180 (PC-PR101J/180)

This patch was part of ESP Ghostscript for several years and did not
cause any problems there.

[src/gdevdjet.c src/gdevdljm.c src/gdevdljm.h src/contrib.mak src/gdevcdj.c]

2007-05-08T16:26:19.557957Z Till Kamppeter

Modularization of the X11 output devices into dynamic libraries

DETAILS:

This patch allows to compile Ghostscript in a way that the X11 screen
display output devices can be seperated into a dynamically linkable
library, so that these devices can be put in a separate binary package
in Linux distributions. This way the distributions can be installed
with GhostScript and without the X libraries, which is important for
headless print servers.

This feature is only available for Unix with GCC (selected by the
Makefile).

Ghostscript will be compiled without built-in X11 support and with an
extra X11.so file containing the X11 support. One can install
Ghostscript with or without X11.so then, it will always work. It
detects the presence of X11.so automatically and makes the X11 output
devises available if X11.so is present (see "gs -h").

Small disadvantage: With modularized X11 support the "x11" device will
not stay the default one. "bbox" will be the default then. Use "gs
-sDEVICE=x11 ..." then.

This patch is used since mid 2001 in ESP Ghostscript and has never
caused any problems or bugs related to the modularization.

[src/gconf.c src/lib.mak src/gdevl256.c src/gdevxalt.c src/gs.mak src/gdevvglb.c src/Makefile.in src/unix-gcc.mak src/unix-aux.mak src/devs.mak src/unixinst.mak src/gp_unix.c]

2007-05-07T21:53:44.031582Z Ralph Giles

Remove unneeded header references to the interpreter. This file is part 
of the graphics library. Also clean up the dependencies in the makefile.

[src/lib.mak src/gsncdummy.c src/gsncdummy.h]

2007-05-07T21:31:43.787169Z leonardo

Fix (shadings) : Implement a color index cache.

DETAILS : 

This partially improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

This change is algorithmically equivalent.
The old code redundantly converts client colors
to device colors. This patch implements a cache for 
the conversion in the new module gscicach.h .
It works for contone devices only.

For the test case it reduces the number of color conversions 
in 20+ times. However a rocket speeding up is not obtained.

This patch is an experimental one.
We have got an alternative approach,
which is more complicated but works for any device.
The alternative is to pass converted colors through the decomposition recursion.
We commit this now mainly for archiving purpose.
To disable it replace the call to gs_color_index_cache_create with NULL.

[src/gxshade4.h src/lib.mak src/gscicach.c src/gscicach.h src/gxshade6.c]

2007-05-07T19:45:03.500615Z Alex Cherepanov

Trap input errors when reading PDF content streams and issue a warning.
Acrobat Reader silently ignores such errors. Bug 689026, customer 850.

[lib/pdf_base.ps]

2007-05-07T17:42:00.368595Z Timothy Osborn

Fixing a bounding box pixel rounding issue in pdf14_begin_transparency_group.

DETAILS:

The transparency group bounding box calculation was using a different rounding
method than is being used for images. This caused the problem file in bug
report #688543 to display unwanted gray vertical lines to the left and right of
a transparency group. This fix is to use the same "Center-of-pixel Filling Rule"
that is applied to images to avoid this type of problem.

[src/gdevp14.c]

2007-05-07T10:33:00.607664Z leonardo

Fix (functions) : Improving the documentation for make_interpolation_tensor.

[src/gsfunc0.c]

2007-05-07T08:48:12.997512Z leonardo

Documenting how to profile Ghostscript with MSVC6 (continued).

DETAILS :

Fixing a misprint.

It's still a preliminary edition.
A documentation specialist should improve it.

[doc/Develop.htm]

2007-05-07T08:10:13.225741Z leonardo

Documenting how to profile Ghostscript with MSVC6.

DETAILS :

It's a preliminary edition.
A documentation specialist should improve it.

[doc/Develop.htm]

2007-05-05T19:20:34.952465Z Alex Cherepanov

Undefine /Length in the stream dictionary when the value is incorrect to
distinguish streams of 0 and unknown length. Old code re-defined incorrect
length as 0. Bug 689208, customer 770.

[lib/pdf_base.ps toolbin/pdf_info.ps]

2007-05-04T21:23:03.556389Z Timothy Osborn

Minor change to make the source code more accurate.

DETAILS:

A parameter was being moved into the pdf buffer structure under a comment that
indicated the parameter wasn't being used. During my testing for bug #688543
I discovered the parameter was being used. Therefore I moved the line to be
above the comment to better reflect reality.

[src/gdevp14.c]

2007-05-04T04:18:47.247543Z Alex Cherepanov

Move allocation of a large structure from the stack to the heap to avoid
C stack overflow on Windows NT that allocates 12K less of the stack
space than requested by the application. Bug 688998.

[src/gdevpdfp.c lib/pdf_draw.ps]

2007-05-04T00:15:08.895805Z Ray Johnston

Previous version was too aggresive with image interpolation to
1-bit per component (bpc) devices. Now we downsample using the
'special' image filter that prevents dropout on 1bpc devices and
use the "Mitchell" image filter for upscaling to those devices
when the scale factor (in X and Y) is at least 4:1. This prevents
upscaling on 1:1 images as well as near 1:1 where the results
would probably be poor quality.

[src/gxiscale.c]

2007-05-03T15:13:26.865969Z Alex Cherepanov

Avoid a Valgrind warning about ovelapping arguments in memcpy().
Don't assign a structure to itself.

[src/gxhintn.c]

2007-05-02T21:20:41.869528Z leonardo

Fix (shadings) : Extra subdivision of axial and radial shadings.

DETAILS : 

This partially improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

The old code wrongly mapped shading function arguments
fro axial and radial shadings. It caused an
extra subdivision by U when the color function requires
to subdivide by V.

[src/gxshade4.h src/gxshade1.c src/gxshade6.c]

2007-05-02T19:12:52.030634Z leonardo

Fix (shadings) : The color space linearity check didn't account the color precision.

DETAILS : 

This partially improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

Since the color space represents color with precision 1/255,
the shadings code must not try to obtain a better precision.
This patch accounts the color quantum in is_dc_nearly_linear.

[src/gscspace.c]

2007-05-02T18:18:29.002307Z leonardo

Fix (shadings) : Always adjust smoothness according to the minimal color precision.

DETAILS : 

Since the color space represents color with precision 1/255,
the shadings code must not try to obtain a better precision.
However the old code sometimes used the unadjusted value.
This patch defines an uniform way to access the adjusted smoothness.

[src/gxshade6.c]

2007-05-02T12:33:09.355227Z leonardo

Fix (shadings) : Early skip parts that fall outside the clipping box.

DETAILS : 

This improves performance for the test case of 
the bug 689189 "PDF fails with /unregistered in --shfill--".

The patch implements a bbox intersection code pattern to
several decomposition functions. It speeds up those shadings, 
in which the shading area is significantly larger 
than the clipping box.

Rather it speeds up the test case,
it needs a further improvement for shading functions.
A small noize (being lesser than shading smoothness) to be ignored
while a function monotonity check.

Minor changes :
1. In some functions the old bbox intersection code 
   becomes more uniform.
2. bbox_of_points moved up.

[src/gxshade6.c]

2007-05-01T23:55:23.394938Z Alex Cherepanov

Pacify Valgrind. Initialize an uninitialized variable that is used in
conditional expression but doesn't affect the end result. Bug 688910.

[toolbin/vg_bugs.supp toolbin/vg_okay.supp src/gxipixel.c]

2007-05-01T22:51:27.306035Z Alex Cherepanov

Pacify Valgrind. Initialize an uninitialized variable that is used in
calculations but doesn't affect the end result in this case.

[src/gximono.c]

2007-05-01T20:52:58.020607Z leonardo

Fix (shadings) : wedge_vertex_list_elem_buffer overflow.

DETAILS : 

Bug 689189 "PDF fails with /unregistered in --shfill--".

The estimation for wedge_vertex_list_elem_count_max
assumed a division of 1 side per level.
However triangle_by_4 divides 3 sides at once. 
Now we increase the buffer size according to that,
see comment in code for details.
It increases the buffer size from 110K to 220K.

We tried to implement a new function triangle_by_2
to keep the old buffer size,
triangle_by_2 must be the topmost worker for fill_triangle.
This function appears almost same as triangle_by_4,
except it divides the biggest side only.
We discontinued this effort because
we don't like the code duplication,
which only saves 100K of RAM,
and gives lots of minor raster differences.

This patch fixes the failure,
but the performance with the test case appears unsatisfactory.
It sould be a subject of a separate patch.

[src/gxshade6.c]

2007-04-30T19:08:16.584376Z Ray Johnston

Fix typo in 7887. Local regression testing missed this -- was seen in 
nightly run. This was part of the "optimization" in the 4 component
source color case.

[src/gxiscale.c]

2007-04-29T00:34:16.918957Z Ray Johnston

Fix structure problem (this could have caused out-of-bounds access).

[src/gdevwts.c]

2007-04-28T22:17:19.957831Z Ray Johnston

Implementation of a new non-linear image filter that prevents dropout
when images are scaled down to a 1-bit per component device. Bugs
689147 for customer 531 and image quality problem for customer 780.
This filter is used whenever /Interpolate == true (or -dDOINTERPOLATE
command line option is used) and the image is being scaled down on
a 1-bit per component device.

Interpolation throughput of gray or cmyk images is also improved by
a factor of about 2:1 (depending on the data content) even when
the standard Mitchell filter is used. The performance improvement
when using this new filter is even higher since the filter itself
uses less CPU time.

DETAILS:

This filter uses the darkest of the image pixels that are within a
device pixel, rather than the default behaviour which uses the PS
'center of pixel' rule (i.e., whichever image pixel covers the
center of the device pixel is used to color the device pixel).

The center of pixel rule can result in missing narrow black
lines or single dots in patterns when a source image is scaled down.

One side effect of this filter is that narrow white features or
small white areas in patterns can be lost, effectively darkening
the result. For now the customers needing this are not concerned
with small white-on-black areas becoming solid black. Many real
world printers tend to do this anyway due to 'dot gain'.

If we encounter the need for preserving small white areas, we
can change the filter somewhat to prevent this effect.

[src/sidscale.h src/gxdda.h src/lib.mak src/siinterp.c src/gxiscale.c doc/Develop.htm src/sisparam.h src/sidscale.c]

2007-04-28T21:55:23.077958Z Ray Johnston

Add missing comment (brief description line).

[src/gdevwts.c]

2007-04-26T23:46:30.659099Z Ray Johnston

Fix regression tools to remove dependency on PYTHONPATH since
the environment variable method isn't very convenient for those
running local regressions and add those python files from
peeves:/home/regression/python to this directory (under svn).

[toolbin/tests/README toolbin/tests/run_nightly toolbin/tests/myoptparse.py toolbin/tests/main.py]

2007-04-25T20:00:00.200965Z Timothy Osborn

Fix for slow PDF performance reported in bug report #688830.

DETAILS:

The function read_create_compositor was calling top_up_cbuf every time it was
called. For some jobs this caused a large number of relatively large memory
movements in the memmove call of top_up_cbuf. By only calling top_up_buf
when actually necessary, the problem job took approximately 1/2 the time it
did previously.

[src/gstparam.h src/gxclrast.c src/gdevp14.c]

2007-04-25T05:50:33.064031Z leonardo

Fix (TT fonts) : Allow sfnts string breaks inside TT tables.

DETAILS : 

The old code is based on an antique Adobe constraint
"the strings must begin at TrueType table boundaries, or
at individual glyph boundaries within the glyf table".
In novadays many of 3d party software do not follow it.
We're dropping this constraint from GS code
because we tired fixing user problems with it. 

This change is algorithnically equivalent for fonts,
which follow the constraint.

This change replaces ACCESS macro 
(sll 3 definitions through Ghostscript sources)
with a new macro READ_SFNTS, which copies data to a local buffer,
and checks the length of the buffer.
We believe that the performance flaw is not sensible
and it worths the improved stability.
Correspondingly local pointer variables,
which were used with ACCESS macro,
are replaced with local buffers.
Sorry for keeping old names inspite of the popular convention -
we do not want too many changes in a single patch 
to simplify its review.

In some places the new data copying could be eliminated because
the old code already copies the data. 
We do not optimize it now,
becauase we want to simplify the patch review.
We believe that modern compilers can optimize it.

The new code still have few points,
which are based on the antique constraint.
One example is names in name table.
Will do further improvements someday.
The new code signals an error if
the constraint is used and not satisfied
(the old code doesn't with unpredictable result).

[src/gxfcopy.c src/gxfont42.h src/gsfcid2.c src/gstype42.c src/gdevpsft.c]

2007-04-25T03:28:32.022759Z leonardo

Fix (TT fonts) : Allow 'loca' elements to be broken into parts with 'sfnts' strings.

DETAILS : 

Bug 689038 "GS doesn't display T42 font correctly.".

The Type 42 specification reads that 'sfnts' strings must not break TT tables.
Exactly, "the strings must begin at TrueType table boundaries, or
at individual glyph boundaries within the glyf table".
However the test case is another example when a 3d party software 
"LilyPond 2.11.10" doesn't follow this constraint. 
We prefer to handle such font data, 
because we have not enough control for fonts in wild.

The new function gs_type42_read_data is factored out
from the old code of default_get_outline.
Due to that we believe that the change to default_get_outline
is algorithmically equivalent.

This patch does not propagate error codes from
gs_type42_read_data in get_glyph_offset. 
This is done intentionally for keeping the patch simpler, 
and for keeping the behavior closer to the old one. 
It simplifies the regression testing.
Propagating the error codes should be a next step.

[src/gstype42.c]

2007-04-24T16:21:21.866752Z leonardo

Fix (TT fonts) : Could write past len_glyphs array.

DETAILS : 

This is a partial fix for bug 688971 
"huge performace problem (with large TT font?)".
Thanks to SaGS for noticing this problem.

[src/gstype42.c]

2007-04-24T00:16:14.934585Z leonardo

Fix (TT fonts) : Do not consider overlapped glyps while computing glyph length.

DETAILS : 

This is a partial fix for bug 688971 
"huge performace problem (with large TT font?)".
Thanks to SaGS for idea to drop an old hewristic
after a *stable* sorting is applied.
See comment in code.

[src/gstype42.c]

2007-04-23T23:59:01.979981Z Alex Cherepanov

Partly implement AcroForm feature: all fields that provire appearance
streams and text fields with variable text. Bug 687498.

DETAILS:
Although the sample file renders identically to Adobe Acrobat, many things
are not yet coded.
- other types of annotations without appearance streams
- XML formatted text
- multi-line text
- combed text
- right-aligned or centered text with non-0 word and character spacing.

[lib/pdf_main.ps lib/pdf_draw.ps lib/pdf_ops.ps]

2007-04-23T21:46:19.686175Z leonardo

Fix (TT fonts) : A faster computation of glyph lengthes.

DETAILS : 

This is a partial fix for bug 688971 
"huge performace problem (with large TT font?)".
Thanks to SaGS for idea to apply a *stable* sorting algorithm
for computing len_glyphs. See comment in code.

[src/gstype42.c]

2007-04-23T19:31:20.353885Z Henry Stiles

Margin adjustments courtesy of jbrown@cs.ucsd.edu.  We have no way of
testing this change since we do not have a Laserjet II.  Bug #688054.

[src/gdevdjet.c]

2007-04-23T18:04:55.781264Z leonardo

Fix (p*mraw devices) : Removing an incorrect debug printing (continued 2).

DETAILS : 

See comment in code.

[src/gdevpbm.c]

2007-04-23T17:38:16.893357Z leonardo

Fix : Provide alternative char codes in a CIDDecoding resource (continued).

DETAILS : 

Removing an unused variable.

[src/zcid.c]

2007-04-23T13:27:47.091654Z leonardo

Fix : Provide alternative char codes in a CIDDecoding resource.

DETAILS : 

Bug 689168 "Wrong Symbol displayed from MS-PGothic".
See the documentation change.

Note : FAPI implemented this feature with Decoding resource a long ago,
but it was not documented in Language.htm .

The old documentation about CIDDecoding in Language.htm appears incorrect.
The dictionary values were not strings.
They were arrays of integers.

[lib/gs_ciddc.ps doc/Language.htm src/zcid.c]

2007-04-23T06:42:08.584860Z leonardo

Fix (p*mraw devices) : Removing an incorrect debug printing (continued).

DETAILS : 

Revision 7869 fails with any PDF file.
Fixing it now.
See comment in code.

[src/gdevpbm.c]

2007-04-22T22:00:22.158968Z Alex Cherepanov

Fix MSVC 7 warnings about unused variables and unreferenced labels.

[src/zalg.c]

2007-04-22T20:25:22.439569Z leonardo

Implementing high level patterns, step 10.

DETAILS : 

gx_pattern_tile_is_clist crashed with empty tile.
Debugged with CET 09-34.PS .

[src/gxpcmap.c]

2007-04-22T20:19:02.249842Z leonardo

Fix (p*mraw devices) : Removing an incorrect debug printing.

DETAILS : 

Since revision 7795 the debug build of the old code prints "0 strings:" 
to stderr when interpreting any PDF file.
The release code doesn't do that. This printing is not controlled by any option.
Besides that, if a device parameter OutputIntent is specified,
the debug printing code accesses string parts by constant indices 
with no checking the string length, so it causes a potential crash.

Removing this code portion now because (1) we believe that
the debug and release build must generate same stderr by default,
and (2) we need a stable code with no dependence on the OutputIntent value.

Since Use.htm doesn't specify an useful -Z option to control this printing,
we believe that the device must implement anothe device parameter to control it.

[src/gdevpbm.c]

2007-04-22T17:55:56.827285Z leonardo

Implementing the PS operator .sort in C language.

DETAILS : 

This is a partial fix for bug 688971 
"huge performace problem (with large TT font?)".
Patch from SaGS.

The old PS implementation of lib\gs_init.ps::.sort uses a 
slow O(n^2) algorithm. Plus, array indexing operations are lenghty 
in PostScript. It seems to me this was initially written to sort 
the very few "%disk*%" names, so speed was irrelevant. Now, it is 
used to sort 'loca' tables (in some damaged TTFs). 

The patch implements the heap sort algorithm from the programmer's 
bible. This algorithm is guaranteed to be O(n log n) in the worst 
case. Variable's names are those from Knuth's book. Labels denote the 
algorithm's steps.

The implementation retains the maximum generality for the predicate, 
i.e. it can be anything that is able to compare 2 objects on the 
o-stack and leave a bool in their place. The predicate is not 
restricted to what's available to a FunctionType 4 function.

[src/zalg.c src/int.mak lib/gs_init.ps]

2007-04-22T11:50:25.863066Z leonardo

Fix (TT fonts) : A faster seeking through 'sfnts' array.

DETAILS : 

This is a partial fix for bug 688971 
"huge performace problem (with large TT font?)".
Patch from SaGS.

src\zfont42.c::string_array_access_proc() is now caches
the string index used last, and starts the next search from there. 
This info in stored together with the ref to 'sfnts', and 
consists of index of the string (.mru_sfnts_index) and total number 
of data bytes that precede this string (.mru_sfnts_pos).

If passing NULL for the 2 new parameters, string_array_access_proc() 
beheaves at it did before and starts the search from the beginning.

Otherwise it does one of:
- search forward from the mru string (possibly returning data from 
  it, without actually skipping anything), if new position >= 
  current's string starting position;
- search backwards from current string if requested position is in 
  the 2nd half of the fragment before the current string;
- search forward from the beginning if in 1st half.

The old garbager descriptor for gs_type42_data_s assumed
'ref' fields only. Now it is changed to account new fields,
which are not 'ref'.

[src/zfcid1.c src/zbfont.c src/ifont.h src/zfont42.c src/ifont42.h]

2007-04-21T02:33:44.148360Z Alex Cherepanov

Fix all warnings generated by MSVC 6 & 7 except the warnings matching
"C4018|C4244|jbig2dec|jasper" regular expression.

[src/dwimg.h src/lib.mak src/iscannum.c src/windows_.h src/gdevwpr2.c src/gp_mswin.c src/sfxstdio.c src/gdevpdfe.c src/gp_msprn.c src/dwdll.c ijs/unistd_.h src/dwsetup.cpp]

2007-04-19T15:04:51.253884Z Thomas DiGennaro

Integrate make_testdb.py with new environment,
including testing.cfg and python procedures in other scripts.
make_testdb.py supports creation of a testdata.db with checksums
generated by running gs build in HEAD/ and installed in gshead/.

[toolbin/tests/README toolbin/tests/make_testdb toolbin/tests/make_testdb.py]

2007-04-18T00:23:49.202468Z Alex Cherepanov

Fix a few warnings generated by GCC 4.1.2.

[src/gxttfb.c src/gdevpbm.c src/gdevpsdi.c src/gspath1.c src/zchar.c src/ttinterp.c]

2007-04-17T18:39:39.936412Z leonardo

Fix : A bug in device_cpath_accum_enum_ptrs.

DETAILS : 

Bug 689177 Another heap corruption (issue 2).

gx_device_clip::list.head was never enumerated.
The bug was intriduced in rev 7120 (5 months, 3 weeks ago) by leonardo.

[src/gxacpath.c]

2007-04-17T17:57:43.141720Z Ralph Giles

Remove the inadvertently added instance of testing.cfg; it clobbers 
local configs. Changes should instead be made to testing.cfg.example, 
with the expectation that users will copy that to testing.cfg and
edit to suit.

[toolbin/tests/testing.cfg]

2007-04-17T14:28:46.266428Z leonardo

Implementing high level patterns, step 9.

DETAILS : 

This fixes the bug 688396, step 9
It switches on the clist-based implementation of patterns.
We arbitrary set the 1Mb threshold for large patterns.
The threshold is not perfect - see (3) below.

Rather it fixes the bug, we would like to do further improvements someday :

1. Large uncolored patterns are not implemented. Need a color substitution forwarding device.
2. Get rid of non_gc_memory in the pattern clist.
3. For CET tests the choice of image-based or clist-based representation must be smarter than 
   MAX_BITMAP_PATTERN_SIZE threshold. While rendering a small pattern to memory device,
   check whether PaintProc applies another apttern. If so, discard the image and
   convert to the clist representation with running PaintProc at second time.
   Need a special forwarding device for the pattern color detection.
4. When compiled with MAX_BITMAP_PATTERN_SIZE 0,
   a wrong rendering of imagemask inside a pattern stream with ppmraw -r600 245-13.ps, 269-01.ps
5. When compiled with MAX_BITMAP_PATTERN_SIZE 0,
   a wrong rendering of image inside a pattern stream with pkmraw -r600 035-07.ps
6. When compiled with MAX_BITMAP_PATTERN_SIZE 0,
   a minor coordinate difference (+-1 pixel) appeared with pkmraw -r600 244-01.ps
7. When compiled with MAX_BITMAP_PATTERN_SIZE 0,
   the rendeting is slow with pkmraw -r600 245-13.ps, 269-01.ps 
8. (time optimization) clist_init is called twice when creating a clist-based pattern.
9. (time optimization) While a clist playback for a large pattern cell,
   set the bbox for the current clipping path for the clist device,
   to allow a faster skipping of elements outside the bbox.
10. (space optimization) Store pattern stream in the pattern cache memory; properly 
   account the stream size while computing the cache memory usage.
11. (space optimization, 32K per pattern) Purge and free clist buffer 
   (which includes a tile cache) when a clist-based pattern is not active
   between reading and writing. Why the tile cace is a property of a clist object ?
   We would like to have a single global tile cache.

[src/gxpcmap.c]

2007-04-17T14:09:50.996301Z leonardo

Implementing high level patterns, step 8.

DETAILS : 

This is a preparation for fixing the bug 688396, step 8

This change is algorithmically equivalent :
the new behavior is temporarily disabled with 
MAX_BITMAP_PATTERN_SIZE macro.

The revision 7856 appears incorrect in the part 
"Disables tile cache for clist-based patterns.".
As a consequence, the revision 7855 appears incorrect in the part 
"2. Releases the clist buffer when the clist writer completes with a pattern stream.".

This patch fixes that.
It allocates a half of 32K buffer for clist writer stream,
and another half for tile cache.

When building with MAX_BITMAP_PATTERN_SIZE 0,
the clist-based pattern code pased the testing with 
ppmraw -r600 comparefiles 
and pkmraw -r600 comparefiles. 
Rather this testing detected few problems,
we believe that they're not important for the bug 688396.

This code needs further improvements :
1. Large uncolored patterns are not implemented. Need a color substitution forwarding device.
2. Get rid of non_gc_memory in the pattern clist.
3. For CET tests the choice of image-based or clist-based representation must be smarter than 
   MAX_BITMAP_PATTERN_SIZE threshold. While rendering a small pattern to memory device,
   check whether PaintProc applies another apttern. If so, discard the image and
   convert to the clist representation with running PaintProc at second time.
   Need a special forwarding device for the pattern color detection.
4. When compiled with MAX_BITMAP_PATTERN_SIZE 0,
   a wrong rendering of imagemask inside a pattern stream with ppmraw -r600 245-13.ps, 269-01.ps
5. When compiled with MAX_BITMAP_PATTERN_SIZE 0,
   a wrong rendering of image inside a pattern stream with pkmraw -r600 035-07.ps
6. When compiled with MAX_BITMAP_PATTERN_SIZE 0,
   a minor coordinate difference (+-1 pixel) appeared with pkmraw -r600 244-01.ps
7. When compiled with MAX_BITMAP_PATTERN_SIZE 0,
   the rendeting is slow with pkmraw -r600 245-13.ps, 269-01.ps 
8. (time optimization) clist_init is called twice when creating a clist-based pattern.
9. (space optimization) Store pattern stream in the pattern cache memory; properly 
   account the stream size while computing the cache memory usage.
10. (space optimization, 32K per pattern) Purge and free clist buffer 
   (which includes a tile cache) when a clist-based pattern is not active
   between reading and writing. Why the tile cace is a property of a clist object ?
   We would like to have a single global tile cache.

[src/gxclist.c src/gxclbits.c src/gxpcmap.c]

2007-04-17T06:55:36.784240Z leonardo

Implementing high level patterns, step 7.

DETAILS : 

This is a preparation for fixing the bug 688396, step 7.

This patch fixes the Bug 689176  
"Infinite loop in gxpcmap.c ln 680.",
which was introduced with revision 7853
In gx_pattern_cache_add_entry mbits was reset
before revision 7853 when "the pattern completely fills its box",
and it was not after the revision 7853.
Thus the revision 7853 appears not algorithmically equivalent
rathen than expected.

This change restores the correct behavior,
and improves gx_pattern_cache_free_entry
for an easier monitoring of a pattern cell memory size
with a C debugger.

This code needs further improvements :
1. Large uncolored patterns are not implemented.
2. Get rid of non_gc_memory in the pattern clist writer.
3. clist_init is called twice when creating a clist-based pattern.

[src/gxpcmap.c]

2007-04-17T00:25:38.792981Z Timothy Osborn

This is a patch for bug report #689171.

DETAILS:
With this fix, DeviceN colors with a DeviceCMYK base color, will be treated as
DeviceCMYK in regards to overprint.

[src/gscdevn.c]

2007-04-17T00:02:10.771224Z leonardo

Fix : gs_copydevice2 crashed on error.

DETAILS : 

This problem has been occasionally detected while working on large patterns.
If an error happens in finish_copydevice, the function gs_copydevices
first closes the device copy, then releases its stype.
However a device usually provides a finalization method,
which releases stype automatically. Thus it has been released twice,
causing a crash in gs_free_object.

[src/gsdevice.c]

2007-04-16T23:55:59.056841Z leonardo

Implementing high level patterns, step 6.

DETAILS : 

This is a preparation for fixing the bug 688396, step 6.

This change is algorithmically equivalent :
the new behavior is temporarily disabled with 
MAX_BITMAP_PATTERN_SIZE macro.

This patch :
1. Implements the memory cleanup when a clist-based pattern cache entry purges.
2. Disables tile cache for clist-based patterns.
3. Disables the processing of uncolored patterns as large patterns.

This code needs improvements :
2. Large uncolored patterns are not implemented.
3. Get rid of non_gc_memory in the pattern clist writer.

[src/gxclist.c src/gxpcmap.c]

2007-04-16T18:53:12.628313Z leonardo

Implementing high level patterns, step 5.

DETAILS : 

This is a preparation for fixing the bug 688396, step 5.

This change is algorithmically equivalent :
the new behavior is temporarily disabled with 
MAX_BITMAP_PATTERN_SIZE macro.

This patch :
1. Implements the tiling.
2. Releases the clist buffer when the clist writer completes with a pattern stream.
3. Cleans warnings from Cygwin/gcc build.
4. Fixes a compilation error in gxpageq.c .

This code needs improvements :
1. The memory cleanup is not done when the clist-based pattern cache entry purges.
2. Large uncolored patterns work as colored (not tested yet).
3. Get rid of non_gc_memory in the pattern clist writer.

[src/gsptype1.c src/gxpageq.c src/lib.mak src/gxpcmap.c src/gsptype1.h src/gxpcolor.h src/gxfill.c src/gxp1fill.c]

2007-04-16T14:45:42.497063Z Thomas DiGennaro

Checkin the work on regression, search, testfiles.  Mostly Python scripts.
See README files for documentation of use and structure.

[toolbin/tests/dump_checksum.py toolbin/python toolbin/tests/gscheck_testfiles.py toolbin/tests/dump_checksum_plus.py toolbin/tests/update_baseline toolbin/tests/check_source.py toolbin/tests/gssum.py toolbin/tests/gscheck_all.py toolbin/tests/dump_checksum_raw.py toolbin/tests/find_unique_file.py toolbin/tests/rasterdb.py toolbin/tests/gscheck_fuzzypdf.py toolbin/search/README toolbin/testfiles toolbin/search toolbin/tests/get_baselines toolbin/tests/build_revision.py toolbin/tests/run_regression toolbin/tests/compare_checksumdb.py toolbin/tests/gsconf.py toolbin/tests/testdiff toolbin/tests/dump_testdb toolbin/tests/gsvalidate.py toolbin/tests/update_baseline.py toolbin/tests/make_baselinedb.py toolbin/tests/gscheck_raster.py toolbin/tests/update_pdfbaseline toolbin/tests/gsparamsets.py toolbin/tests/validate.py toolbin/tests/gstestutils.py toolbin/tests/compare_checksums.py toolbin/tests/regen_filelist.py toolbin/tests/run_nightly.py toolbin/tests/regen_baseline.py toolbin/tests/gstestgs.py toolbin/tests/run_regression.py toolbin/tests/get_baselines.py toolbin/tests/testdiff.py toolbin/tests/updatelistpdf.py toolbin/tests/gscheck_pdfwrite.py toolbin/tests/updatelist.py toolbin/tests/run_series.py toolbin/tests/get_baseline_log.py toolbin/tests/collate.py toolbin/tests/testing.cfg]

2007-04-16T11:02:19.661421Z leonardo

Implementing high level patterns, step 4.

DETAILS : 

This is a preparation for fixing the bug 688396, step 4.

This change is algorithmically equivalent :
the new behavior is temporarily disabled with 
MAX_BITMAP_PATTERN_SIZE macro.

The patch implements patterns with clist.
The choice between the old and the new implementation
is being controlled with MAX_BITMAP_PATTERN_SIZE macro.
When the pattern tile size is bigger, it writes the pattern
command stream into a clist object, which then
is stored into the pattern cache.
The pattern instantiation is done with the clist playback.

This code needs improvements :
1. It does not perform the tiling. Just renders a single instance of the pattern cell.
2. The memory cleanup is not done when the pattern cache entry purges.
3. Uncolored patterns work as colored.
4. Need to optimize with releaseing the clist buffer when
   the pattern clist writer completes.
5. Get rid of non_gc_memory in the pattern clist writer.

We commit this patch now because we need to merge 
data structures with the "band_complexity_array patch" (see rev 7847).

[src/gxclmem.c src/lib.mak src/gxclist.c src/gxpcmap.c src/gxcldev.h src/gxclmem.h src/gxclist.h src/gxpcolor.h src/gxp1fill.c src/zpcolor.c src/gxclread.c]

2007-04-16T02:50:57.803705Z Alex Cherepanov

Use right capitalization for compiled resources: s/Procset/ProcSet/

[src/openvms.mak src/int.mak src/Makefile.in]

2007-04-16T02:26:14.232909Z Alex Cherepanov

Scan numbers in the range of 2147483648..4294967295 in PDF Encrypt dictionary
as unsigned integers for compatibility with Acrobat Reader.
Bug 689010, customer 870.

[lib/pdf_main.ps src/iscan.c src/iscannum.c src/int.mak src/iscan.h src/iscannum.h src/ztoken.c]

2007-04-15T07:01:59.507361Z Henry Stiles

This fix is associated with closed bug 689139 and was not checked in
when that bug was closed due to a bookkeeping mistake.  It adds
attributes needed to parse the pxl color treatment operator.  There is
no implementation associated with these new attributes so no change is
expected.

[src/gdevpxen.h]

2007-04-15T06:38:02.809649Z Henry Stiles

The paper size was hard coded to A4 instead of using the paper size in the
printer device state.  Thanks to Leif Harcke for the patch.  The HP
and Canon color printer drivers are not tested so there are no
expected regression differences.

[src/gdevcdj.c]

2007-04-15T05:42:43.102974Z Henry Stiles

The range of runcode32 was not correct.  The specification says 3
(not 2) should be added to the run length.  See the JBIG2 spec, Table
29 in section 7.4.3.1.7 (Symbol ID Huffman table decoding).  Fixes
688009 for customer 670.

[jbig2dec/jbig2_text.c]

2007-04-14T14:08:04.439060Z Timothy Osborn

Fix for the band_complexity_array overflow issue. First reported in bug
report #689165. Also encountered by me when running the test file for bug
report #688830.

DETAILS:
The band_complexity_array array of a clist reader device was being statically
allocated with 100 elements. As the requirement is 1 element per band,
jobs requiring more than 100 bands could cause an abnormal termination
of ghostscript or some other failure. The array is now allocated dynamically
with 1 element per band.

[src/lib.mak src/gxclist.c src/gxcldev.h src/gxclist.h src/gdevprn.c src/gxclread.c]

2007-04-11T18:21:07.628832Z Timothy Osborn

Adding src/gsncdummy.[ch] and src/zncdummy.c to the Color Mapping section of Develop.htm

[doc/Develop.htm]

2007-04-11T18:15:35.603892Z Timothy Osborn

Adding svn keywords

[src/gsncdummy.h]

2007-04-11T18:08:02.032998Z Timothy Osborn

Adding svn keywords

[src/gsncdummy.c src/zncdummy.c src/gsncdummy.h]

2007-04-11T15:25:52.638692Z Timothy Osborn

svn newbie mistake. Did not mean to grab the lib folder items.*

[lib/pdf_main.ps lib/pdf_draw.ps lib/pdf_ops.ps lib/pdfopt.ps]

2007-04-11T15:20:44.560137Z Timothy Osborn

gsncdemo.* are now named gsncdummy.*

[lib/pdf_main.ps src/gsncdemo.c lib/pdf_draw.ps lib/pdf_ops.ps lib/pdfopt.ps]

2007-04-10T17:13:41.025532Z leonardo

Implementing high level patterns, step 3.

DETAILS : 

This is a preparation for fixing the bug 688396, step 3.
This change is algorithmically equivalent.
It encapsulates the initialization of gx_device_pattern_accum fields 
inside gx_pattern_accum_alloc, so that its clients must not deal
with a specific type of a pattern accumulation device.

Note: the 2 previous steps has a different title than
"Implementing high level patterns". 
They to be renamed.

[src/gxpcmap.c src/gxpcolor.h src/zpcolor.c]

2007-04-10T06:54:36.984146Z leonardo

Make the memory clist implementation to build always.

DETAILS : 

This is a preparation for fixing the bug 688396, step 2.
The memory clist implementation now builds unconditionally,
because it will be used for large patterns.
The file clist implementation builds if and only if it is requested with 
BAND_LIST_STORAGE=file .
See comment added into lib.mak .
clist_init_io_procs implements the choice.

Minor changes : io_procs are made const.
clist_io_procs_file, clist_io_procs_memory, allocateWithReserve are made local.

[src/gxclmem.c src/lib.mak src/gxclfile.c src/gxclist.c src/gxband.h src/gxclread.c src/gxclio.h]

2007-04-09T20:50:20.646460Z Alex Cherepanov

Interpret PDF PageLabels dictionary and include the labels in %%Page comments
in the PS file. Thanks to Jason McCarty for the patch. Bug 688071.

[lib/pdf2dsc.ps]

2007-04-09T08:54:30.839959Z leonardo

Implementing clist i/o virtual functions.

DETAILS : 

This is a preparation for fixing the bug 688396.
This change is algorithmically equivalent.

The old code defines macros for substituting
memfile_* procs to clist_* procs when 
the makefile option BAND_LIST_STORAGE is set to 'memory'.
Instead that, the new code defines a new structure clist_io_procs_t,
stores the procs into it, and chooses 
an implementation by the module initialization mechanizm.
The new function clist_init_io_procs works for that.

We would like to define the procs as virtual methods
of *clist_file_ptr, but it needs to change the logics
of clist_fopen, clist_fclose with allocating an
auxiliary structure. We would like to make this improvement 
as a separate patch in order to simplify the
regression testing and debugging.

[src/gxclmem.c src/gxpageq.c src/lib.mak src/gxclfile.c src/gxclist.c src/gxclmem.h src/gxpageq.h src/gxclist.h src/gdevprn.c src/gdevprna.c src/gxband.h src/gxclread.c src/gxclio.h src/gxclpage.c src/gxclutil.c]

2007-04-09T03:18:38.528054Z Alex Cherepanov

Remove unused static rendering procedures for 16-bit samples identical to the
corresponding 12-bit procedures. Fix bug 687399.

[src/gxi16bit.c]

2007-04-08T18:45:58.681482Z Alex Cherepanov

Make annotation handler more robust. Ignore annotations without /Subtype
entry and issue a warning.

[lib/pdf_draw.ps]

2007-04-08T18:23:38.107786Z Alex Cherepanov

Increase the size of %stdin buffer to support larger lookahead requests and
look for for %PDF- tag in the first 1024 bytes of the file. Fix bug 687125,

[lib/pdf_main.ps lib/pdf_base.ps src/ziodevs.c src/ziodevsc.c]

2007-04-08T17:55:40.402009Z leonardo

pscet_status.txt : Improving assignments.

[doc/pscet_status.txt]

2007-04-07T20:07:46.466482Z Ray Johnston

Add missing calls needed to properly send data to the printer on
Windows. Thanks to Luke Bakken for this fix. Bug 687250.

DETAILS:

Tested on Windows XP, built with MSVC 8 (Visual Studio 2005).
As Luke writes in the bug comment #5, this patch is derived
from Microsoft documentation at:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/prntspol_93g2.asp

[src/gp_msprn.c]

2007-04-07T01:58:38.533291Z Alex Cherepanov

Make the spot function in the high resolution halftone a readable procedure
to accomodate CET 29-05-01. Move Berthold K.P. Horn's copyright message into
the body of the function to keep them together at all times.

[doc/pscet_status.txt lib/gs_init.ps]

2007-04-06T15:58:56.468981Z Alex Cherepanov

Following Adobe implementation don't restore the operand of --begin--
when it overflows the dictionary stack. Fix CET 20-02-02.

DETAILS:
Implement the approach suggested by L. Peter Deutsch.

- Change the check_dstack macro in dstack.h so it works the same as
  check_estack in estack.h -- i.e., if the current dstack block is full,
  call ref_stack_extend and then only return an error if
  ref_stack_extend fails.
- Change the handling of e_dictstackoverflow in interp.c so it works
  the same as e_execstackoverflow -- i.e., it doesn't try to extend the
  stack.
- Change the implementation of zbegin in zdict.c to work like
  check_dstack. I.e., if the current dstack block is full, call
  ref_stack_extend; if ref_stack_extend returns e_dictstackoverflow, pop
  the operand from the ostack before returning the error code.

With this approach, the interpreter does not have to know anything about
special handling of dictstackoverflow, and the right thing happens in
the special case of the 'begin' operator.

[doc/pscet_status.txt src/zdict.c src/dstack.h src/interp.c]

2007-04-06T10:17:36.503282Z leonardo

Fix : MSVC8 warnings.
Also replaced cumbersome type casts and fixed ambiguous naming in gxclread.c .

[src/gxwts.c src/gswts.c src/gxclread.c]

2007-04-06T04:17:48.623209Z Henry Stiles

make gdevdevn a dependency of the transparency library since it
gdevp14 now depends on it.

[src/lib.mak]

2007-04-06T04:11:32.256255Z Henry Stiles

force the wts device to always band.

[src/gdevwts.c]

2007-04-06T04:11:00.512053Z Alex Cherepanov

Accept a perfectly valid 0-length pattern stream. Work around a strange
restriction on 0-length target string in the readstring operator.
Fix bug 689162.

[lib/pdf_draw.ps]

2007-04-06T02:43:19.702262Z Timothy Osborn

Splitting graphics library from interpreter portion of the sample custom color callback

[src/gsncdummy.c src/zncdummy.c src/gsncdummy.h]

2007-04-06T02:39:31.953398Z Timothy Osborn

Splitting graphics library from interpreter portion of the sample custom color callback

[src/lib.mak src/gsnamecl.h src/int.mak]

2007-04-05T21:34:09.306348Z Ralph Giles

Add #ifdef protection to some new debug printouts for the OutputIntent 
parameter.

[src/gdevpbm.c]

2007-04-05T17:36:43.783101Z Alex Cherepanov

Fix compilation on MSVC 6. Add a best effort simulation of C99 __func__
keyword on older compilers.

[src/lib.mak src/gdevdbit.c src/gserror.h]

2007-04-05T01:29:14.432997Z Henry Stiles

fixes a UMR that was caused by a typo.

[src/gdevwts.c]

2007-04-03T16:08:49.165033Z Stefan Kemper

Committing Raph's wtsimdi device

DETAILS:

-r600 -sDEVICE=wtsimdi does a performance optimized clist reader that either directly halftones 
or uses an intermediate rgb buffer to do non-trivial ROPS correctly then post halftones 
on a per band basis.

Uses icc color profiles to convert to device color.  
Uses wts halftone algorithm.

The device reads in a link icc profile from "link.icc", and WTS
halftone files from wts_plane_[0123]. It generates a ppm file that
can be used to visualize the halftoned file (it is prepared from the
CMYK bits in the procedure write_pkmraw_row in gdevwts.c - if an
actual device is available, that routine should be modified to produce
data for the device).

  This device _does_ switch on a per-band basis between continuous
tone pathways (true branch of the "if" statement in
wtsimdi_create_buf_device) and halftone, based on whether there are
rops. That is the major point of the work.

This is not yet production ready, but is useful for performance and integration work.

Known issues:

1. Banding only, low res non-banding will crash,
the device is intended for printer resolution halftoning, at 600dpi
The halftones are designed for 600dpi.

2. Color profiles and halftone screens are not in romfs,
These need to be copied into the same object/binary directory
that the application is in for now.
./pspcl6 and ./wts_* and ./*.icc in the same directory.
Failure to find these files will crash.

3. Halftone phase not set correctly in halftone band.

4. copy_mono doesn't optimize all-0 and all-1 colors as much as it
should - it can avoid processing the screen at that point.

5. halftone mode implemented only for rgb color model, not CMYK.

6. size of band_colors_used[] array is statically determined

[src/gxwts.c src/gxclist.c src/gxdevbuf.h src/gxwts.h src/gxclist.h src/gxgetbit.h src/gdevwts.c src/gdevdbit.c src/gxbitfmt.h src/gxclread.c src/gdevpng.c src/gxclutil.c src/gxclimag.c src/gxcldev.h src/gdevppla.c src/gdevprn.c src/gdevppla.h src/gswts.c src/gdevprn.h src/gxclpath.c src/gxclrect.c]

2007-04-02T22:34:51.451596Z Alex Cherepanov

Change CET 17-06-02 to AOK. Ghostscript generates correct results
at 300 dpi and above.

[doc/pscet_status.txt]

2007-04-02T21:43:37.719440Z Alex Cherepanov

Change CET 17-04-02 and 17-05-02 to AOK. Ghostscript generates correct results
at 300 dpi and above.

[doc/pscet_status.txt]

2007-04-02T18:25:44.568365Z leonardo

Fix (pdfwrite) : a composite font with a Type 3 descendent and FMapType 2 (continued).

DETAILS :

Patch from SaGS with minor improvements.
Bug 688639 " pdfwrite: a composite font with a Type 3 descendent and FMapType 2".
The last patch deosn't correctly accommodate the code from SaGS.

[src/gdevpdtc.c]

2007-04-01T21:46:50.065374Z leonardo

Fix (pdfwrite) : a composite font with a Type 3 descendent and FMapType 2 

DETAILS :

Patch from SaGS with minor improvements.
Bug 688639 " pdfwrite: a composite font with a Type 3 descendent and FMapType 2".
See comment #13 in the bug report.

[src/gdevpdtc.c]

2007-04-01T19:14:49.835812Z leonardo

Fix (ps2write) : Device initialization problems.

DETAILS :

Patch from SaGS with a minor improvement.
See bug 688856 comments 11,12,13 for details.

[src/gdevpdfx.h src/gdevpdfp.c src/gdevpdfd.c src/gdevpdfb.h lib/gs_pdfwr.ps]

2007-04-01T18:27:55.285455Z leonardo

pscet_status.txt : Closing 11-16-8, which appears eventually fixed; Passing 17-04-2 to Alex.

[doc/pscet_status.txt]

2007-04-01T07:39:25.772162Z Ray Johnston

Fix typo that caused undefined during build.

[src/gdevrops.c]

2007-04-01T07:06:00.179365Z leonardo

Fix : MSVC warnings.

DETAILS :

The custom color callback patch was not accommodated to
the color space reference count patch.

[src/gscie.h src/gscscie.c src/gxcspace.h src/gscsepr.c src/gscspace.c src/gsicc.c src/gspcolor.c src/gscdevn.c src/gscie.c src/gscolor2.c]

2007-03-29T23:26:10.038260Z Alex Cherepanov

Change CET 09-56-03 to OK. Ghostscript matches Tek360 checksum. CPSI-based
PhotoPrint product is wrong again.

[doc/pscet_status.txt]

2007-03-29T00:53:36.234691Z Alex Cherepanov

Don't store part of the state of readhexstring in not yet written bytes
of the target string to avoid the string modification when the operator
fails and the stack is restored. Fix CET 23-20-01.

DETAILS:
Pack the state into a single 32-bit word for the convenience of reusing
the procedures that take a single integer value as a state.

DIFFERENCE:
No other CET or Comparefiles differences.

[doc/pscet_status.txt src/zfileio.c]

2007-03-28T16:03:31.220336Z Alex Cherepanov

Propagate CloseSource or CloseTarget flags to the temporary stream
created by filter_ensure_buffer(). Fix CET 23-12k-02.

DIFFERENCE:
No other CET or Comparefiles differences.

[doc/pscet_status.txt src/zfilter.c]

2007-03-27T22:44:40.516433Z Alex Cherepanov

Change the status of CET 17-01-07, 17-02-06, and 17-02-07 to AOK.
Ghostscript matches Tek and Distiller 5, CPSI is wrong here.

[doc/pscet_status.txt]

2007-03-27T17:39:51.715201Z Alex Cherepanov

Make FontBBox a required attribute in CPSI compatibility mode.
PLRM says that it's a required attribute and recent Adobe interpreters
enforce this. Fix CET 15-11.

[doc/pscet_status.txt src/zchar.c]

2007-03-27T02:55:14.620042Z Alex Cherepanov

Change the status of CET 11-18-6 to AOK. Adobe interpreters have obvious
rendering bugs that are hard to simulate in Ghostscript.

[doc/pscet_status.txt]

2007-03-26T00:36:09.521618Z Alex Cherepanov

Clear a Purify warning. Fix yet another case where a non-0-terminated string
was directly used as a sscanf() argument, causing an access to the wild core.

[src/gdevpdfm.c]

2007-03-25T21:58:01.514677Z Alex Cherepanov

Add a new option for ignoring an Encoding entry of a True Type font dictionary.
Work around the bug 688596.

DETAILS:
This patch provides a workaround for PDF documents that include an incorrect
Encoding entry for a True Type font dictionary. Using the new command line
option -dIgnoreTTEncoding one can force the PDF interpreter to use an encoding
specified in the 'cmap' table of embedded True Type fonts. When it is
specified, the Encoding dictionary is not tested for PDF comformity.

[lib/pdf_font.ps doc/Use.htm]

2007-03-25T20:16:59.028603Z Alex Cherepanov

Clear a Purify warning. Search for the EOD marher not earlier than
the start of the data buffer.

[src/sa85d.c]

2007-03-25T17:47:16.863668Z Alex Cherepanov

Don't check current row position in the mask of the image type 3x
when the mask is not defined. Fix an infinite loop.
Fix the bug 688912, and a part of the bug 689138.

[src/gximag3x.c]

2007-03-25T14:48:19.599692Z Alex Cherepanov

Fix an off-by-one error in the glyph array sorting logic detected by Purify.

[src/gxfcopy.c]

2007-03-25T04:18:56.724059Z Alex Cherepanov

Clear a Valgrind warning. Initialize a buffer overshot area in CCITTFaxDecode
filter. Bug 688905.

[src/scfd.c]

2007-03-24T17:28:22.209822Z Timothy Osborn

Changing C++ comments to C format comments

[src/gdevp14.c]

2007-03-24T16:31:23.728641Z Alex Cherepanov

Fix C++ -style variable definition introduced by the previous commit,
which is not supported by older compilers: MSVC 6, gcc 2.96.

[src/gscspace.c]

2007-03-23T13:56:11.260385Z Timothy Osborn

Custom color hooks code merge

[src/gsimage.c src/gstext.c src/gscscie.c src/gdevtsep.c src/gxdcolor.h src/gsciemap.c src/gsicc.c src/gscdevn.c src/gscie.c lib/pdf_main.ps src/gdevdsp.c src/gdevpsd.c src/lib.mak src/gdevdflt.c src/gsncdemo.c src/gsdps1.c src/gdevdevn.c src/zusparam.c src/gxdevice.h src/gdevdevn.h src/iparam.c src/zfapi.c lib/pdf_ops.ps src/gsstate.c src/gdevp14.c src/gxclist.c src/gxcmap.c src/gsstate.h src/gdevp14.h src/ztrans.c src/gstrans.c src/gxblend.c src/gdevpbm.c src/gstrans.h src/gxclip.c src/gxblend.h src/gscspace.c src/gsnamecl.c src/gdevrops.c src/gscolor2.c src/zcolor3.c src/gdevpnga.c src/gscspace.h src/gxistate.h src/gsnamecl.h src/gsdparam.c src/gdevbbox.c src/gxclipm.c src/gxcie.h src/gdevnfwd.c src/gdevprn.c src/gspaint.c src/gscsepr.c src/gsutil.c src/gxclip2.c src/gxdevcli.h]

2007-03-21T01:48:30.497976Z leonardo

Fix (PDF interpreter, pdfwrite) : Transparently pass unusialrenedering modes.

DETAILS :

Bug 689124 "Converting PDF to PDF makes text non-selectable"

The old code transformed a text with unusual rendering mode
into outlines.

1. When the current device is pdfwrite,
   the new code of PDF interpreter doesn't emulate 
   unusual rendering modes. (Patch from Alex).

2. pdfwrite transparently passes unusual rendering modes.

[src/gdevpdtt.c lib/pdf_ops.ps]

2007-03-19T04:27:34.509606Z Ralph Giles

Correct a typo in the indexed colorspace support for the luratech JPX 
decoder.

[src/sjpx_luratech.h]

2007-03-15T02:13:09.397460Z Alex Cherepanov

Reset the dashed line array at initgraphics. Fix CET 09-28-01.

[doc/pscet_status.txt src/zgstate.c]

2007-03-15T00:49:11.591683Z Ralph Giles

Update an additional version number.

[doc/News.htm]

2007-03-15T00:44:21.345487Z Ralph Giles

Bump the revision number after the 8.56 release.

[doc/News.htm lib/gs_init.ps src/gscdef.c src/version.mak]

Version 8.56 (2007-03-14)

This is a stable release in the 8.5x series of Ghostscript. It contains a numerous bug fixes and improvements. Most significantly, comformance with the Quality Logic CET suite for Postscript has been improved, and a special 'gs_cet.ps' prefix file can be sent with a job to produce output closer to that of the reference implementation.

This is our first release since Ghostscript 8.54. The 8.55 version number was skipped to avoid confusion with a GNU release.

The following bugs were open at the time of this release:

226943, 405501, 430175, 465936, 493348, 530011, 535932, 578865, 592160, 610478, 614298, 626295, 686747, 686853, 686865, 687011, 687039, 687084, 687095, 687108, 687125, 687146, 687193, 687196, 687219, 687229, 687231, 687250, 687257, 687271, 687280, 687295, 687297, 687303, 687316, 687327, 687342, 687345, 687346, 687375, 687397, 687399, 687414, 687445, 687460, 687475, 687484, 687492, 687498, 687514, 687520, 687531, 687536, 687559, 687561, 687593, 687595, 687608, 687630, 687650, 687666, 687674, 687677, 687679, 687680, 687695, 687697, 687702, 687715, 687721, 687728, 687729, 687731, 687775, 687780, 687782, 687793, 687796, 687805, 687814, 687844, 687850, 687863, 687887, 687899, 687903, 687904, 687907, 687915, 687919, 687931, 687950, 687957, 687960, 687970, 687974, 687977, 687978, 687981, 687983, 687988, 688006, 688007, 688009, 688020, 688022, 688024, 688026, 688032, 688035, 688036, 688042, 688054, 688058, 688061, 688064, 688066, 688071, 688072, 688075, 688081, 688095, 688108, 688124, 688129, 688130, 688134, 688151, 688152, 688159, 688166, 688184, 688187, 688200, 688203, 688204, 688207, 688210, 688215, 688225, 688227, 688239, 688243, 688267, 688269, 688274, 688280, 688282, 688283, 688288, 688291, 688295, 688311, 688312, 688317, 688318, 688320, 688323, 688332, 688333, 688337, 688338, 688339, 688342, 688358, 688359, 688360, 688361, 688363, 688372, 688375, 688378, 688383, 688386, 688387, 688389, 688395, 688396, 688400, 688410, 688413, 688425, 688427, 688428, 688429, 688434, 688436, 688437, 688440, 688446, 688448, 688468, 688473, 688475, 688477, 688479, 688483, 688490, 688493, 688495, 688500, 688515, 688517, 688518, 688526, 688528, 688532, 688533, 688539, 688540, 688542, 688543, 688557, 688565, 688573, 688580, 688581, 688584, 688588, 688596, 688598, 688601, 688604, 688605, 688610, 688616, 688617, 688619, 688621, 688626, 688627, 688633, 688634, 688635, 688636, 688637, 688638, 688639, 688643, 688646, 688647, 688651, 688653, 688655, 688671, 688672, 688673, 688674, 688683, 688696, 688697, 688699, 688708, 688709, 688710, 688711, 688712, 688714, 688717, 688728, 688730, 688731, 688734, 688736, 688738, 688739, 688740, 688755, 688757, 688762, 688770, 688777, 688778, 688796, 688797, 688806, 688807, 688808, 688809, 688811, 688813, 688814, 688815, 688818, 688826, 688828, 688829, 688830, 688834, 688843, 688845, 688846, 688856, 688858, 688870, 688871, 688872, 688876, 688877, 688878, 688899, 688903, 688904, 688905, 688906, 688907, 688908, 688909, 688910, 688912, 688914, 688915, 688916, 688917, 688918, 688919, 688920, 688923, 688924, 688925, 688926, 688928, 688933, 688934, 688940, 688942, 688943, 688945, 688949, 688952, 688954, 688958, 688965, 688969, 688970, 688971, 688976, 688977, 688978, 688979, 688981, 688983, 688986, 688990, 688991, 688992, 688994, 688998, 688999, 689001, 689002, 689003, 689010, 689011, 689013, 689014, 689016, 689021, 689022, 689025, 689026, 689028, 689031, 689032, 689036, 689038, 689040, 689041, 689044, 689046, 689048, 689050, 689053, 689055, 689056, 689057, 689058, 689060, 689065, 689068, 689070, 689076, 689077, 689078, 689080, 689081, 689085, 689090, 689092, 689093, 689094, 689098, 689101, 689103, 689104, 689105, 689106, 689107, 689111, 689114, 689115, 689116, 689117, 689122, 689123, 689124, 689126, 689127, 689128, 689129, 689130, 689131, 689132, 689133, 689134, 689136, 689137, 689138.

Incompatible changes

There are no known incompatible changes at this point.

Changelog

2007-03-15T00:02:10.064485Z Ralph Giles

Handle empty log messages.

[toolbin/split_changelog.py]

2007-03-14T21:35:45.571769Z Ralph Giles

Remove romfs.dev from FEATURE_DEVS_ALL. It is no longer optional.

[src/Makefile.in]

2007-03-14T21:15:00.798517Z Ralph Giles

Update revision, dates, and list of open bugs for release.

[doc/History7.htm doc/Projects.htm doc/History8.htm man/dvipdf.1 man/ps2ascii.1 doc/Use.htm doc/Readme.htm doc/Source.htm doc/Deprecated.htm doc/Maintain.htm man/ps2epsi.1 doc/Install.htm src/gscdef.c doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm man/pfbtopfa.1 doc/Release.htm doc/Commprod.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm man/gs.1 src/version.mak src/dwsetup.rc man/pf2afm.1 doc/Ps2ps2.htm doc/Fonts.htm man/printafm.1 doc/Ps2pdf.htm doc/Develop.htm doc/Helpers.htm man/pdf2dsc.1 doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm man/font2c.1 man/gsnd.1 man/pdfopt.1 src/winint.mak doc/News.htm man/pdf2ps.1 man/ps2pdf.1 doc/Testing.htm doc/Make.htm doc/Details8.htm doc/Unix-lpr.htm doc/C-style.htm doc/Ps-style.htm doc/History1.htm doc/History2.htm man/gslp.1 man/wftopfa.1 doc/History3.htm doc/History4.htm man/ps2pdfwr.1 doc/Ps2epsi.htm man/ps2ps.1 doc/History5.htm doc/History6.htm]

2007-03-13T22:40:29.048961Z leonardo

Fix (stroking) : Apply the right math for computing always_thin,

DETAILS :

The old code estimated the line width with 
an empiric formula, which doesn't look well defined.
Replacing it with a right math.
See comment in code.

[src/gxstroke.c]

2007-03-13T22:35:51.420875Z leonardo

Fix (stroking) : Apply the right math for computing always_thin,

DETAILS :

The old code estimated the line width with 
an empiric formula, which doesn't look well defined.
Replacing it with a right math.
See comment in code.

[doc/pscet_status.txt src/gxstroke.c]

2007-03-11T20:47:13.652729Z leonardo

pscet_status.txt : Closing 11-06-5.

[doc/pscet_status.txt]

2007-03-11T17:43:34.501551Z leonardo

Fix (user paths) : Wrong current point after uappend closepath.

DETAILS :

The old code missed the subpath starting point after uappend.
Also removing the code for copying current point from path 
in user path operations, because gs_upmergepath now performs this job fine.

[doc/pscet_status.txt src/gspath.c src/zupath.c]

2007-03-11T16:29:11.261904Z Alex Cherepanov

Rename "ref dash_pattern" to avoid confusion with "float dash_pattern[]".

[src/zgstate.c src/igstate.h]

2007-03-11T13:46:54.105020Z leonardo

Fix : MSVC compiler warnings.

DETAILS :

The patch
http://ghostscript.com/pipermail/gs-cvs/2007-March/007345.html
is incomplete.
More const qualifiers are now removed.

[src/zimage.c src/gxiparam.h src/gxcmap.c src/iimage.h src/gximage.c src/gximage1.c src/gximage3.c src/gsipar3x.h src/gximage4.c src/gxclrast.c src/gximag3x.c src/gdevpdfi.c src/gsiparam.h src/gsiparm3.h src/gsiparm4.h]

2007-03-11T09:10:05.985706Z leonardo

pscet_status.txt : Improving assignments.

[doc/pscet_status.txt]

2007-03-09T20:41:25.398262Z Ray Johnston

Add a utility to dump out information about PDF files. Fix
for customer #259.

DETAILS:

This is intended as an example since most customers will want
specific info, but it also is slightly handy.

We may want to do 'pdf_info' scripts and .bat files in lib/
but these can be added later.

   usage: gs -dNODISPLAY -q -sFile=____.pdf [ options ] toolbin/pdf_info.ps

          where "options" are:
          -dDumpMediaSizes          MediaBox and CropBox for each page
          -dDumpFontsUsed           List fonts used
          -dShowEmbeddedFonts       only meaningful with -dDumpFontsUsed

Sample 'full' output looks like:


examples/annots.pdf has 6 pages.
Title: Microsoft Word - Links.doc
Author: August D. Coby
Creator: ADOBEPS4.DRV Version 4.24
Producer: Acrobat Distiller 4.0 for Windows
CreationDate: D:20000420231130Z
ModDate: D:20040413162329-07'00'

Page 1 MediaBox: [ 612 792 ] CropBox: [ 612 792 ]
Page 2 MediaBox: [ 612 792 ] CropBox: [ 612 792 ]
Page 3 MediaBox: [ 612 792 ] CropBox: [ 612 792 ]
Page 4 MediaBox: [ 612 792 ] CropBox: [ 612 792 ]
Page 5 MediaBox: [ 612 792 ] CropBox: [ 612 792 ]
Page 6 MediaBox: [ 612 792 ] CropBox: [ 612 792 ]

Fonts Used:
ArialMT
IBKJPF+ArialMT
JBAHHI+ArialMT

[toolbin/pdf_info.ps]

2007-03-08T17:24:28.272086Z Raph Levien

Remove unnecessary zeroing out of reference count of indexed color space
map structure. Eliminates warnings when run with -Z?

[src/zcsindex.c]

2007-03-08T00:27:45.225750Z Ray Johnston

Missing (yet another) dependency -- string_.h. It probably was not
a problem.

[src/int.mak]

2007-03-07T21:22:02.986768Z Ralph Giles

Update the makefile with new header dependencies added in r7198.

[src/int.mak]

2007-03-07T20:35:24.409027Z Stefan Kemper

Fix image banding error with high level images ctm.

Fixes ridt91.eps (ppmraw/300dpi/banded)

[src/gxclimag.c]

2007-03-07T00:12:53.750515Z Timothy Osborn

Changed assignment from Igor to Tim for items marked same-as some items already marked OK.

[doc/pscet_status.txt]

2007-03-06T21:40:32.469232Z leonardo

Fix (Type 1 interpreter) : Account the replaced side bearing in setcurrentpoint.

DETAILS :

When the side bearing is replaced with Metrics or Metrics2,
the old code didn't account that while executing setcurrentpoint,
so that further outline poles go to wrong (unreplaced) coordinates.
Fixes CET 16-03-2.

[doc/pscet_status.txt]

2007-03-06T21:37:14.025835Z leonardo

Fix (Type 1 interpreter) : Account the replaced side bearing in setcurrentpoint.

DETAILS :

When the side bearing is replaced with Metrics or Metrics2,
the old code didn't account that while executing setcurrentpoint,
so that further outline poles go to wrong (unreplaced) coordinates.
Fixes CET 16-03-2.

[src/gstype1.c src/gstype2.c src/gxtype1.c src/gxtype1.h]

2007-03-06T19:46:12.663281Z Ralph Giles

Resolve version control Id line issues flagged by the regression run.

[doc/pscet_status.txt src/gxhintn1.c doc/Testing.htm doc/Psfiles.htm lib/jobseparator.ps]

2007-03-06T17:24:58.366068Z leonardo

Fix (TT interpreter) : memory leaks with PCL (continued).

DETAILS :

The last patch doesn't compile with gcc due to a redundsnt typedef.

[src/gxttfb.c]

2007-03-06T14:35:00.233763Z leonardo

Fix (TT interpreter) : memory leaks with PCL.

DETAILS :

1. The old code created gx_ttfMemory instance per font,
   but only the first one is used. Others are leaks.
   The new code create one instance per font directory.
   The new field gs_font_dir::ttm works for that.

2. For proper lock count on memory errors, don't call Context_Destroy 
   if Context_Create was not called.

3. In ttobjs.c don't use exec->current_face for accessing ttfMemory,
   because PCL closes fonts when they are not active
   in the TT interpreter. The new field Execution_Context::memory
   works for that.

[src/gxfcache.h src/gxttfb.c src/gsfont.c src/ttfmemd.c src/ttfmain.c src/ttobjs.c src/ttobjs.h]

2007-03-05T21:50:20.543548Z Raph Levien

Remove stray debug print that was left in previous commit (colorspace
refcount patch).

[src/gscscie.c]

2007-03-05T21:09:35.951840Z Raph Levien

Non-backwards compatible change: use consistent reference count allocation
discipline for color spaces. Previously, color spaces were allocated on
stack, on the heap, as sub-structures within other color space structures,
and were very commonly copied. Reference counting was used for the "params"
block of some, but not all, color spaces, but there were correctness
problems with that logic.

In addition, a number of "const" qualifiers have been removed, because
the action of bumping the reference count on an object is not consistent
with the C semantics of const.

This change is required to resolve problems with enhancement 688924. It
should also help with memory leaks.

Other clients, such as the PCL interpreter, will require changes to be
compatible. For simple device colorspaces, the change to gs_setcmykcolor()
(gscolor1.c) is representative of the code change required.

[src/gsimage.c src/zimage.c src/zshade.c src/gslibctx.c src/gscscie.c src/gdevpdfb.c src/gdevpdfc.c src/gdevpdfg.c src/gxclrast.c src/zpcolor.c src/zicc.c src/gspcolor.c src/gdevps.c src/gdevpdfi.c src/gsicc.c src/gscdevn.c src/zcssepr.c src/gdevpdfk.c src/zcie.c src/gdevpdfg.h src/lib.mak src/gsicc.h src/gscdevn.h src/zcspixel.c src/gsrefct.h src/gdevpsdi.c src/gdevpdfv.c src/zcolor.c src/gscolor.c src/gsiparam.h src/gxshade6.c src/gscssub.c src/gdevp14.c src/gsstate.c src/gxclpath.c src/gsptype1.c src/zcsdevn.c src/gscpixel.c src/gxcmap.c src/gsptype1.h src/icsmap.h src/gsistate.c src/gscpixel.h src/gxshade.c src/gximag3x.c src/zcsindex.c src/gscspace.c src/gscolor1.c src/gscolor2.c src/zcolor2.c src/gscolor3.c src/gscspace.h src/gxistate.h src/gscolor2.h src/gxpcmap.c src/gxcspace.h src/gxcdevn.h src/gxcolor2.h src/gscsepr.c src/gscindex.h src/gscsepr.h]

2007-03-05T17:12:51.517731Z Timothy Osborn

Reassinged shading issues to Igor

[doc/pscet_status.txt]

2007-03-05T05:30:38.914444Z Raph Levien

Make sure that memory for jpeg_decompress_data gets allocated from the
same memory as the stream structure that owns it. Previously, the
stream structure would be allocated in global, and the jddp in stable
local, which is a violation of GC invariants. Fixes bug 689118, which
was a GC crash in the regression file H00216q.pdf.

[src/zfdctd.c]

2007-03-04T21:31:28.032123Z leonardo

pscet_status.txt : Closing 11-24-3 .

[doc/pscet_status.txt]

2007-03-04T18:25:04.375026Z Alex Cherepanov

Fix X mirroring for all color modes of the interpolated image.
The mirroring was missing from non 8 bits/colorant modes resulting
in the mirrored output images.

[src/gxiscale.c]

2007-03-04T17:08:25.140696Z leonardo

Fix (user paths) : Remove the uneven behavior with uappend.

DETAILS :

1. uappend was fixed to ignore the incorrfect placement of ucache 
   in the CPSI compatibility mode. 
   However in contradiction to other user path operators,
   CPSI has no uneven behavior with uappend, 
   so changing upath back to the regular behavior.

2. Don't change current point if uappend fails.
   Likely it was an inaccuracy in a recent patch.

3. Change other user path assignment for more efficiency.

[doc/pscet_status.txt src/zupath.c]

2007-03-04T16:41:00.611078Z Ray Johnston

Free up any previous line_ptrs in a memory (image) device before
allocating new ones. This allows multiple calls to setup_buf_device
without leaking memory (as seen with the PCL allocator that does
not have garbage collection).

[src/gdevprn.c]

2007-03-04T16:37:32.768972Z Ray Johnston

The index file should not be compressed. It is small, and if it ever did
get compressed, it would SEVERELY impact performance since the entire
list gets processed on every band.

[src/gxclist.c]

2007-03-03T03:51:56.270202Z Alex Cherepanov

Fix a stack nix-up that occured when cm operator was used inside BT/ET block.
Bug 688985, customer 580.

[lib/pdf_draw.ps]

2007-03-02T05:55:00.252985Z Henry Stiles

accommodate parsing of undocumented color treatments (689100) which
appear to have no effect.

[src/gdevpxen.h]

2007-03-01T20:17:09.177569Z leonardo

Fix (pdfwrite) : Handle a text with degenerate CTM.

DETAILS :

The old code failed with undefinedresult when writing
a text to output with degenerate CTM. 
The new code writes it somehow to provide searchability.
See comment in code.
Such text is not visible in rendering.
We don't care about 'Tj' optimization
because such cases are rare.

[src/devs.mak]

2007-03-01T20:15:49.273788Z leonardo

Fix (pdfwrite) : Handle a text with degenerate CTM.

DETAILS :

The old code failed with undefinedresult when writing
a text to output with degenerate CTM. 
The new code writes it somehow to provide searchability.
See comment in code.
Such text is not visible in rendering.
We don't care about 'Tj' optimization
because such cases are rare.

[src/gdevpdts.c]

2007-03-01T15:27:39.443405Z leonardo

Fix (graphics) : Imprecise current point after drawing an arc (continued).

DETAILS :

The old code uses 'fixed' representation for an angle of an arc.
It appears insufficiently precise.
The new code performs the angle computations in doubles.
The patch intentionally doesn't change the algorithm.

[doc/pscet_status.txt src/gspath1.c]

2007-03-01T12:50:10.538308Z leonardo

Fix (fuzzy.c) : An incorrect image difference format for multipage files.

DETAILS :

The old code created a single header for the image difference,
which describes the first page only. Further pages were written
with no header. 

Also the output buffer length was incorrect
when pages have different sizes. 
It caused heap corruption.

The new code creates a new file for each page difference.

[toolbin/tests/fuzzy.c]

2007-03-01T02:26:03.339465Z Alex Cherepanov

When a chain of decoding filters encounters EOF, close the last filter in
the chain. This seems to contradict PLRM3 but matches the observed behavior
of Adobe interpreters. Bug 688745, customer 384.

DETAILS:
Contrary to PLRM3, Adobe interpreters close disk files and filters equaly.
Old Ghostscript code was inconsistant and closed the first and the last
filters in the chain, or the last 2 filters depending whether the first file
is a disk file or a filter.

[src/stream.c]

2007-02-28T18:49:49.409416Z leonardo

Fix (fuzzy.c) : Multipage files processed incorrectly.

DETAILS :

When ppmraw writes several pages into a single file, it places a header before 
each image data. The old fuzzy.c does not expect headers, and reads headers as image data. 
This change provodes parsing an own header for each page.

[toolbin/tests/fuzzy.c]

2007-02-28T17:03:28.849858Z Alex Cherepanov

Validate arguments of the operator startjob. Fix CET 31-10-02.

[doc/pscet_status.txt lib/gs_lev2.ps]

2007-02-27T21:11:08.978663Z leonardo

Fix (graphics) : Imprecise current point after drawing an arc.

DETAILS :

1. gs_arc_add_inline took current point from fixed point coords in path. 
   Implementing PRECISE_CURRENTPOINT for it.

2. gs_imager_arc_add made private because it changes the interface
   and none of our interpreters call it.

3. pis->subpath_start is set from arc if a path starts with an arc.

[doc/pscet_status.txt src/gspath1.c src/gspath.h]

2007-02-26T16:24:17.305323Z Alex Cherepanov

Fix indeterministic behavior of fuzzy.c with -w > 1. Initialize the rest of
the window buffer that would be uninitialized before half_win lines is read.

[toolbin/tests/fuzzy.c]

2007-02-25T20:46:03.985068Z Alex Cherepanov

Set upper font cache limit to 1e8 bytes in CPSI compatibility mode.
Fix CET 27-02-01.

[doc/pscet_status.txt src/gsfont.c]

2007-02-25T19:26:44.964185Z Alex Cherepanov

Fix MSVC-specific code added to fuzzy.c in the rev. 7743.

[toolbin/tests/fuzzy.c]

2007-02-25T19:13:16.641987Z Stefan Kemper

Banding fix where triangles where incorrectly detected and rendered
as parallelograms when rendering out of the clist.  Triangles are only used
to fill bevel joins so this occurs infrequently, and the use of fuzzy 
comparisons will hide all but the largest stroke width errors.  

Corrects many pcl CET banding/nobanding differences:
28-01 
28-02
28-03
28-04
28-05
28-06
28-07
28-10
29-01		   
29-02
29-08
29-10
29-11
30-01
30-04
30-16
30-19
30-23
31-01
31-02
31-03
31-04
31-05
31-06
31-07
31-08
31-09
31-10
31-11
32-01
32-02
34-03
36-04
36-05

[src/gxclrast.c]

2007-02-25T13:58:08.233607Z leonardo

Fix (fuzzy.c) : Further improvements.

DETAILS :

1. The old code read past EOF.
   It happens because the EOF condition doesn't appear when reading
   the last byte of a page, which is the last byte of the file.
   Actually EOF happens when attempting to read bytes after the last
   byte of a page. It caused the old code to think that an extra
   page presents at file end, and to perform a dummy comparizon of the extra page
   as it would appear with repeating the last raw of the file.
   Due to that the old code consumes nearly twice CPU time than neccesary.
   Fixed with comparing the file position with the file legth in image_pnm_feof.

2. image_get_rgb_scan_line didn't return an error code when
   insufficient data presents in the file.

3. Optimized fuzzy_diff_images with using memcmp for
   a faster comparizon of rows. Skip the heavy analyzis of differences
   when entire rows are equal.

[toolbin/tests/fuzzy.c]

2007-02-25T05:06:47.526811Z Alex Cherepanov

Clean up pscet_status.txt and add comments to a few entries.

[doc/pscet_status.txt]

2007-02-25T02:09:12.060125Z Alex Cherepanov

In Level 3, operator setscreen takes the value of AccurateScreens from the user
parameter even with the dictionary argument. PLRM p682. Partly fix CET 09-49-02

[doc/pscet_status.txt lib/gs_dps2.ps]

2007-02-24T15:32:48.711895Z Alex Cherepanov

Set /errorinfo to null in the error handler when it undefined.
Fix missing 'null' in CET 09-47c and 09-47j.

[doc/pscet_status.txt lib/gs_init.ps]

2007-02-23T23:03:23.452670Z Ray Johnston

Fix memory leak (PCL) due to extra gstate creation. PS did not leak thanks
to the Garbage Collector.

DETAILS:

If a pattern PaintProc did a gsave/grestore the grestore would detect that
the base graphics state did not have an underlying 'saved' graphics state
and would create one (due to the need for PostScript to always have two
graphics states on this graphics state stack/list). When gx_pattern_load
freed the graphics state it created, the (possible) underlying graphics
state would not get freed. Since the PostScript allocator (that supported
garbage collection) would locate and free the unconnected graphics state
this was not seen with PostScript.

The gs_state_free_chain function was created in case there are other clients
that need this function (pdfwrite ?)

[src/gsstate.h src/gxpcmap.c src/gsstate.c]

2007-02-23T22:05:37.560889Z Alex Cherepanov

Use stricter validation of the pattern dictionary parameters to
match CET 18-02c and 18-02d.

DETAILS:
In particular, don't accept the degenerative matrix, unnormalized, or empty
bounding box. The difference in the operand stack in CET 18-02c is not yet
fixed. Adobe doesn't restore operands of rectfill operator when an error
happen in the PaintProc procedure but Ghostscript does.

[doc/pscet_status.txt lib/gs_lev2.ps src/zpcolor.c lib/pdf_ops.ps]

2007-02-23T18:32:39.440312Z Timothy Osborn

Changed status to AOK for 09-47B-11 Test05 and Test06

[doc/pscet_status.txt]

2007-02-23T17:31:15.655333Z Timothy Osborn

Changed status to AOK for 09-47B-11 Test10 and Test11

[doc/pscet_status.txt]

2007-02-23T17:04:07.479609Z Timothy Osborn

Changed status to AOK for 09-47B-10 Test10 and Test11

[doc/pscet_status.txt]

2007-02-23T13:29:37.822169Z L. Peter Deutsch

Changes the 'token' operator so it does not pop the operand on an
invalidaccess error, for Adobe compatibility.

[src/ztoken.c]

2007-02-22T15:39:15.380404Z Alex Cherepanov

Set bottom limit of 100000 on the font cache size in the compatibility
mode to match Adobe interpreters.  Partial fox for CET 27-07-01.

[doc/pscet_status.txt src/gsfont.c]

2007-02-22T03:10:49.737762Z Alex Cherepanov

Don't include systemdict, globaldict, and userdict into the array of
dictionaries that is pushed to the operand stack on dictstackoverflow.
Partly fix CET 20-02-02.

[doc/pscet_status.txt src/interp.c]

2007-02-22T00:39:53.016232Z Ray Johnston

Previous CPSI_PPM files had been run with a (bogus) RenderingIntent
ProcSet in force that (among other things) redefined the 'show' op
as a procedure. This ProcSet appears to be a method to use different
color matching depending on the type of imaging operation (fill, stroke,
show, image, shfill).

The casper.ghostscript.com:/home/ray/PSLL3/CPSI_PPM directory is now
updated with the results obtained when the RenderingIntent ProcSet is
disabled. The interesting thing is that many pages that CPSI previously
could not render now work (some that did render now do not) and that
GS now matches several more files than previously. 

The status indicates "OK" where GS matches CPSI (close enough) and
removes the 'cpsi missing' where we now have CPSI results available.
Some pages are changed to "DIFF" status and assigned, indicating that
a fix (or an intelligent review) is needed.

Please email me with any questions.

[doc/pscet_status.txt]

2007-02-21T22:16:53.963317Z Alex Cherepanov

Change the parameter validation order in execstack to match CET 20-03.

[doc/pscet_status.txt src/zcontrol.c]

2007-02-21T20:24:45.557583Z Ray Johnston

Fix regression on 124-01.ps. Emulate bizarre Adobe behavior so that the
procedure operand of a 'for' is not executed when BOTH the initial value
and the increment are 0 (or 0.0). Seen with CET 28-07 and FTS 124-01
and verified with custom test file against CPSI.

EXPETECTED DIFFERENCES:

None (this time).

[src/zcontrol.c]

2007-02-21T15:02:42.033266Z Ray Johnston

Fix for language_switch build 'invalidrestore. Allow filter allocation in
systemVM as needed by .runstring and .runstringbegin in gs_init.ps. This 
fixes problem intoduced by rev 7629.

EXPECTED DIFFERENCES.

None. Note that CET 23-12W that was fixed with rev 7629 is OK with this
change since the 'use_space' is not limited by 'save_space'.

[src/zfilter.c]

2007-02-21T14:43:50.287589Z Alex Cherepanov

Make redefined /quit a procedure to match CET 28-10-01.

[doc/pscet_status.txt lib/gs_lev2.ps]

2007-02-21T01:14:19.825556Z Alex Cherepanov

Reclassify CET 23-12W-4 as OK.

[doc/pscet_status.txt]

2007-02-21T00:16:24.688423Z Ray Johnston

Fix CET 28-05-2, Adobe CPSI and Tek do not execute procedure if increment
value is 0. The PLRM does not mention increment value == 0.

EXPECTED DIFFERENCES.

None.

[doc/pscet_status.txt src/zcontrol.c]

2007-02-20T23:54:19.102684Z Alex Cherepanov

Require resource category to be a name in the findresource operator.
Convert 1st operand to a name if it's a string. Fix CET 23-13-04.

[doc/pscet_status.txt lib/gs_res.ps]

2007-02-20T23:35:19.366880Z Alex Cherepanov

Fix CET 20-23-01 - undefine /deviceinfo from systemdict in gs_cet.ps

[doc/pscet_status.txt lib/gs_cet.ps]

2007-02-20T20:54:55.794850Z Alex Cherepanov

Reclassify 20-27-1 as AOK. Contents of $error is device-dependent.

[doc/pscet_status.txt]

2007-02-20T19:38:26.900624Z Ralph Giles

Minor modifications to the parallel job launch script. Take an -r option 
to mark the report with a revision number, and add more stats to the 
output.

[toolbin/tests/run_parallel]

2007-02-20T19:25:10.472981Z Ray Johnston

Update comments on some pages and change some assignments to Alex that
are error message differences. Two more pages resolved.

[doc/pscet_status.txt]

2007-02-20T16:40:21.043788Z Timothy Osborn

Changed status to OK for 09-47I-3 Test11

[doc/pscet_status.txt]

2007-02-20T16:25:41.041973Z Timothy Osborn

Editing change for 09-47B-7, Test01 and Test02

[doc/pscet_status.txt]

2007-02-20T16:23:39.231043Z Timothy Osborn

Changed status to AOK for 09-47B-7, Test01 and Test02

[doc/pscet_status.txt]

2007-02-20T03:55:36.436290Z Alex Cherepanov

Fix CET 29-02 - increment page count after copypage operation.

[doc/pscet_status.txt lib/gs_init.ps]

2007-02-19T20:22:08.118775Z Stefan Kemper

Fix for banding of some images not matching non-banding output.
Added check for an invariant that the translation matches in the 
two matrixes used in rendering.  In this case the non-high level image
path is taken.  A better solution would be to a single matrix, as this will
increase the display list size for some files.

Fixes banding differences in:

035-01.ps
148-11.ps
148.16.ps
1_2001.pdf
455690.pdf
Bug687832.pdf
Bug687840.pdf
a.pdf
adesso4.pdf
bc_02a01_cal.pdf
dave.pdf
file2.pdf
foo.pdf
john_clippedimage.pdf
messenger.pdf
messenger16.pdf
ngnews1.pdf
rotate180.pdf
rotate270.pdf
rotate90.pdf

pcl5ccet/15-03.BIN + ufst

[src/gxclimag.c]

2007-02-19T06:16:13.609799Z Ray Johnston

Change 35_all-6 to OK since regression testing shows that it is now OK.

[doc/pscet_status.txt]

2007-02-19T03:19:41.021316Z Alex Cherepanov

Move redefinition of product, version, revision, and serialnumber in CET
prologue from userdict to systemdict to meet CET 20-15-01.

[doc/pscet_status.txt lib/gs_cet.ps]

2007-02-19T00:38:04.570312Z Alex Cherepanov

Reproduce the algorithm used by Adobe to grow the dictionary
to match CET 20-01-01.

[doc/pscet_status.txt src/idict.c]

2007-02-17T15:55:51.631627Z Alex Cherepanov

Reclassify 20-25-01 as OK because it matches Tek and PhotoPrint is
clearly wrong here.

[doc/pscet_status.txt]

2007-02-17T14:14:09.648281Z Alex Cherepanov

Throw /invalidfont error when glyph 0 is accessed but it is missing from
the type 32 font,

DETAILS:
CET 35_all-12 checks, among other things, how glyphshow operator handles
type 32 fonts without glyph 0. This patch add a check to the BuildGlyph
procedure of type 32 font for the missing 0 glyph that throws /invalidfont
error. The offending command name is retrieved from the text enumeration
structure using a new operator: .getshowoperator

[doc/pscet_status.txt src/zcharx.c src/int.mak src/zfont32.c lib/gs_typ32.ps]

2007-02-16T20:40:10.924118Z leonardo

pscet_status.txt : Improving some assignments.

[doc/pscet_status.txt]

2007-02-16T19:46:05.775757Z Henry Stiles

assign unassigned problems.  Add NF category.  NF means "not fixing"
in the near term.  It should be used if we don't have short term plans
to fix a problem.

[doc/pscet_status.txt]

2007-02-16T19:08:03.918575Z Ralph Giles

Improve the encapsulation of the raster db by adding exists() and 
mtime() methods instead of checking the stored files directly in
the caller.

[toolbin/tests/rasterdb.py toolbin/tests/gscheck_raster.py toolbin/tests/gscheck_pdfwrite.py]

2007-02-16T15:27:49.350851Z leonardo

Fix (stroking) : An imprecise miter limit check. Thanks to
Ray Johnston for analyzing this problem and identifying the type
of fix.

DETAILS :

The old code used cap points for computing the miter tangent.
However cap points do not precisely represent the stroke direction
due a rounding to 'fixed'.

The new code uses the precise stroke direction. The new field
partial_line::vector is used to pass the direction for zero length
dashes.

[doc/pscet_status.txt src/gxstroke.c]

2007-02-16T13:25:42.400099Z Alex Cherepanov

Fix error reporting in CET 35_all-06. Add font type 32 to the check for CIDFont
resources, which was missing from the rev. 7574 patch.

[doc/pscet_status.txt src/zchar.c]

2007-02-16T07:44:07.172841Z leonardo

Fix (type 1 hinter) : An inaccurate estimation of matrix precision.

DETAILS :

The old code doesn't account the Y scale due to a misprint.
It is risky of a fixed overflow while transforming a glyph
to the device space. We didn't detect such glitches in practice.

[src/gxhintn.c]

2007-02-15T10:58:50.217005Z Ralph Giles

Further atomicize the output of the test result lines.

[toolbin/tests/gstestutils.py]

2007-02-15T07:59:50.909402Z leonardo

Fix (type 1 hinter) : An improvement for very small matrices.

DETAILS :

Debugged with this :

/Courier findfont 0.000000000000000000000000000000001 scalefont setfont
72 72 moveto
(ASDFGGH) show
showpage

In fraction_matrix__set the old code computed this->bitshift = 137,
and then 

	this->denominator = 1 << this->bitshift 
	
gave a nonsnse result 512. 
Here is the assembler code for the latter statement built with MSVC8 :

	mov         ecx,dword ptr [eax+14h] 
	shl         edx,cl 

It simply drops higher bytes.
Looks as MSVC compiler bug.

The new code replaces it with strong zero.

[src/gxhintn.c]

2007-02-15T03:43:27.194732Z Alex Cherepanov

Clear the current point in strokepath operator when the original path is empty
to match CET 11-21-07 and 11-28-09.

[doc/pscet_status.txt src/gspaint.c]

2007-02-14T20:47:43.847581Z leonardo

pscet_status.txt : Consider 18-02G-1 as a possible duplicate of 12-01-5.

[doc/pscet_status.txt]

2007-02-14T18:23:43.641152Z Alex Cherepanov

Avoid large memory allocation that can happen when random data are recognized
as a binary object sequence. Add a preliminary syntax check before allocation
of a reference array for a binary object sequence. Bug 688833, customer 1130.

[src/iscanbin.c]

2007-02-14T18:19:39.165881Z Ralph Giles

Updates the the parallel regression running. Construct a report out of 
the log dump, and add a commandline option to run make_testdb instead of 
run_regression.

[toolbin/tests/run_parallel]

2007-02-14T17:31:05.436990Z Henry Stiles

Add analysis from Jan that might be useful in addressing 12-01-05.

[doc/pscet_status.txt]

2007-02-13T21:44:37.122483Z leonardo

Fix (type 1 hinter) : Consider quazi-degenerate CMT as degenerate.

DETAILS :

This improvement is done for PCL tests 18-08.BIN, 18-09.BIN .

[src/gxhintn.c]

2007-02-12T20:12:44.367608Z Timothy Osborn

Changed status to AOK for 09-34-2, 09-34-3, 09-34-7, 09-34-12, 09-34-15, 12-02-18, 12-05-3, 12-07B-10

[doc/pscet_status.txt]

2007-02-12T14:06:50.930532Z Alex Cherepanov

Change the order of allocations because alloc_save_change_alloc() leaves
alloc_change_t structure it allocates in the state that causes SEGV in GC
if where member is not initialized. Bug 688833, customer 1130.

DETAILS:
Allocation of alloc_change_t structure without further initialization happened
when allocation of a new run of references failed. The latter may be easily
triggered by interpretation of random bytes as a binary object sequence.

[src/ialloc.c]

2007-02-12T12:02:52.582461Z leonardo

Fix (interpreter) : Must not remove cshow, kshow procedure operands.

DETAILS :

This improvement is done for CET 13-12-4.

[doc/pscet_status.txt src/zchar.c]

2007-02-12T08:28:32.685785Z leonardo

Fix (interpreter) : Provide a right execution stack on *show errors.

DETAILS :

This improvement is done for CET 13-12-4.
The old code left --%op_show_continue-- on estack when error occors in kshow.

The new code defines a nes field gs_tect_enum_s::enum_client_data,
which stores the initial operator. If an error happens,
op_show_restore puts the initial operator on estack
instead the continuation operator.

Left hand type casts :

	*(op_proc_t *)&penum->enum_client_data = zshow

used to quiet MSVC compiler warnings about function<-->data casts.

[src/gstext.c src/zchar.c src/gxtext.h]

2007-02-11T09:45:31.388669Z leonardo

pscet_status.txt : Improving some inaccurate assignments.

[doc/pscet_status.txt]

2007-02-11T09:00:04.714548Z leonardo

pscet_status.txt : Taking text/character rendering problems 11-07-1, 16-03-2, 16-03-3 .

[doc/pscet_status.txt]

2007-02-09T16:56:36.182205Z Stefan Kemper

Fix logic expression error preventing -dLeadingEdge=[2,3] from running.

[src/gsdparam.c]

2007-02-08T21:07:22.862698Z leonardo

Fix (interpreter) : Early check for degenerate CTM in 'kshow'.

DETAILS :

Debugged with CET 13-12-4.
Note here we don't fix all *show operators,
but provide a minimal change for CPSI compatibility against CET tests
(gstext.c).

Minor change : a misspelled comment in gxchar.c .

[src/gxchar.c src/gstext.c]

2007-02-08T13:33:56.049298Z leonardo

Fix (interpreter) : 'noaccess' must be idempotential operator.

DETAILS :

Debugged with CET 24-09-1.

Also removing an obsolete comment.

Occasionally discovered a regression with 20-15-1.

[doc/pscet_status.txt src/ztype.c]

2007-02-07T21:42:46.099570Z Alex Cherepanov

Check the content of the /Encoding array when the font is created
to detect invalid fonts early and match CET test 16-04-01.

[doc/pscet_status.txt src/zbfont.c]

2007-02-07T17:19:23.733270Z leonardo

Fix (interpreter) : 'definefont', 'show', 'setcachedevice' error inconformity (continued).

DETAILS :

The previous patch has been committed from a wrong revision of ztype.c.

[src/ztype.c]

2007-02-07T16:44:43.843090Z leonardo

pscet_status.txt : Taking 13-12-4 because I fixed a similar problem.

[doc/pscet_status.txt]

2007-02-07T16:30:26.521710Z leonardo

Fix (interpreter) : 'definefont', 'show', 'setcachedevice' error inconformity.

DETAILS :

1. The old code throws different errors than CPSI 
   when a FontMatrix is zero (gstext.c, gxchar.c).

2. With CPSI 'noaccess' trows 'invalidaccess' with read-only dictionaries (ztype.c).

3. 'definefont' must return a read-only object (see PLRM) (gs_fonts.ps).

Debugged with CET 13-13-6, 13-15-3.

[doc/pscet_status.txt src/gxchar.c src/gstext.c lib/gs_fonts.ps src/ztype.c]

2007-02-07T09:39:44.364923Z leonardo

pscet_status.txt : Restoring 09-36-5 as it was in rev 7617.

[doc/pscet_status.txt]

2007-02-07T09:30:56.041828Z leonardo

pscet_status.txt : Restoring 09-36-5 as it was in rev 7617.

[doc/pscet_status.txt]

2007-02-06T11:07:48.194380Z leonardo

Fix (TT font loader) : Removing a dead code.

DETAILS :

This change is algorithmically eauivalent :

    <00030001> .findcmap {
      something1
    } {
      something2
      <00010000> .findcmap {
        something3
      } {
        something4
        <00030001> .findcmap {      %removed
          UNREACHABLE               %removed
        } {                         %removed
          somthing5
        } ifelse                    %removed
      } ifelse
    } ifelse

beacuse something* don't affect .findcmap, and the latter has no side effect .
Actually it dead a long ago.

[lib/gs_ttf.ps]

2007-02-06T09:50:48.237761Z leonardo

Fix (TT font loader) : Account PDF Encoding with embedded symbolic TT fonts 
that include cmap platformID=3 specificID=1 .

DETAILS :

Bug 689083 "PDF embedded TrueType fonts display with wrong characters".

Embedded fonts have symbolic flag and Encoding entry.
In this case PDF 1.6 spec requires to ignore Encoding 
and to create a translation table based on cmap 3.0 or 1.0 .
However the test document does not provide these cmap tables,
so it falls into the "dafault" case (PDF spec 1.6 page 403) :

  "If a character cannot be mapped in any of the ways described above, 
  the results are implementation-dependent."

The old code applied AdobeGlyphList for this case.
It appears different than Acrobat 7 does.
This patch accounts the document's Encoding entry.

Thus the Adobe's implementation dependent behavior appears
to be contradicting to general Adobe's requirement for symbolic fonts.

Please note that ignoring the document's encoding
may give a wrong searchability if the document does not provide ToUnicode.
This one does provide, but we believe that's not general.

[lib/gs_ttf.ps]

2007-02-06T03:26:52.252449Z Alex Cherepanov

Pad short look-up table in the Indexed color space with 0's in PDF documents
when the table comes from a stream. Bug 688987, customer 580.

DETAILS:
Adobe Acrobat 5 detects that the look-up table is short when the table is
a string, unfiltered stream, or ASCIIHexDecode'd stream. When the stream is
FlateDecode'd the length of the decoded data is ignored and the raw memory
in the buffer is used. In most cases it's 0. We pad all streams and pass
strings intact.

[lib/pdf_draw.ps]

2007-02-05T17:21:59.005556Z Ray Johnston

One now AOK, minor cleanup on a few other comments.

[doc/pscet_status.txt]

2007-02-05T16:58:07.399023Z leonardo

Fix (PDF interpreter) : Allow 2-byte ToUnicode CMap for 1-byte fonts.

DETAILS :

Bug 689073 "conversion to PDF fails with rangecheck error".

First, the supplied test case is definitely incorrect.
because it's ToUnicode cmap defines bfchar codes,
which fall outside any code space range defined in the CMap.
Particularly there are 1-byte bfchar codes,
and codespace defines 2-byte codes only.

Second, The PDF spec 1.6. page 472 reads :
"The CMap file must contain begincodespacerange and endcodespacerange
operators that are consistent with the encoding that the font uses. 
In particular, for a simple font, the codespace must be one byte long."
The test case those operators define a 2-byte space for a simple font.

However Adobe handles this document, so we provide a tolerance
for 1-byte fonts. It appears pretty simple : don't substitute
Encoding names for codes over the Encoding length.

Note that codes over the Encoding length appear unuseful
for the test document. In same time they appear consistent 
with codespacerange, so there exist a theoretical possibility that
same CMap is used with another 2-byte font. 
Therefore we keep 2-byte codes intact.

Note that ToUnicode CMap appears unuseful for both
the original and the converted document,
because they use standard glyph names only.
Possibly Adobe don't issue an error due to that.

[lib/pdf_font.ps]

2007-02-04T16:19:41.222295Z leonardo

Fix : MSVC doesn't implement snscanf (continued).

DETAILS :

The last revision doesn't compile with MSVC6,7, 
so this is a better one.
Patch from SaGS.

[src/gp_mswin.c]

2007-02-03T13:30:24.964773Z leonardo

Fix : MSVC doesn't implement snscanf.

DETAILS :

The revision 7672 doesn't compile with Microsoft Visual C++ 2005,
because this compiler doesn't properly define snprintf.

The function snsprintf is a part of the C standard ISO/IEC 9899:1999 (E),
so we decided to define it in the Windows platform-dependent module.
Possibly we'll need a further improvement for other Windows compilers.

Minor change : fixed an MSVC cast warning in iscan.c,
which has been introduced in revision 7672.

[src/iscan.c src/gp_mswin.c src/stdio_.h]

2007-02-03T06:27:14.527305Z L. Peter Deutsch

Updates status to reflect r7672.

[doc/pscet_status.txt]

2007-02-03T06:22:04.579686Z L. Peter Deutsch

Adds an error string and error object to the token scanner state, and an
error object to interpreter contexts, to allow operators to set an arbitrary
object as the "error object" ($error.command) for a PostScript error, and to
allow the token scanner in particular to set special error objects for
syntax errors.  Fixes PS3 CET 23-32-4; partially fixes 21-11-6 and 23-32-2.

[src/icontext.c src/iscan.c src/icstate.h src/interp.c src/iscan.h src/iscanbin.c src/ztoken.c]

2007-02-02T20:29:28.504740Z Ralph Giles

Turn off the strict aliasing warnings in the autoconf gcc build.

Details:

This is slightly dangerous because it can flag real problems the 
optimizer will trip over. However, Ghostscript's method of implementing 
inheritance through macro expansion in structure definitions generates 
hundreds of (not problematic) warnings because the compiler doesn't 
actually trace through to verify that the referenced members are at the 
same offset.

We cannot fix this easily without making the code much more convoluted, 
so in the interests of noticing and fixing other warnings, we've decided
to turn off this particular check.

[src/configure.ac]

2007-02-02T18:54:09.120798Z Alex Cherepanov

Move decryption filter past /SubFileDecode filter installed by
the /resolvestream procedure and remove redundant /SubFileDecode
filter before decryption. The latter didn't handle the case when
the stream length was incorrect. Bug 688722, customer 700.

[lib/pdf_base.ps lib/pdf_sec.ps]

2007-02-02T18:24:56.631552Z leonardo

Fix (FAPI) : A wrong encoding for the font SymbolMT.

DETAILS :

Bug 689049 "ufst fonts not rendering symbol italic greek fonts".

[lib/FCOfontmap-PCLPS3 lib/FCOfontmap-PCLPS2]

2007-02-02T04:47:29.781117Z leonardo

Fix (memory management) : Make the NO_INVISIBLE_LEVELS feature be permanent.

DETAILS :

This change is algorithmically equivalent,
It removes some macros, which are not longer in use.

For details about NO_INVISIBLE_LEVELS see
http://ghostscript.com/pipermail/gs-cvs/2006-April/006467.html
Now we believe that NO_INVISIBLE_LEVELS feature 
has been tested enough (during 10 monthes) to become permanent.

Two obsolete macros alloc_restore_state_step, alloc_forget_save
are expanded and removed.

[src/isave.h src/gxalloc.h src/zvmem.c src/idosave.h src/igcref.c src/igc.c src/ialloc.c src/gsalloc.c src/isave.c]

2007-02-01T19:48:10.557550Z Alex Cherepanov

Generate unique names and create a new Charstrings entries for all
elements of the encoding array that need it. Bug 688613, customer 1110.

DETAILS:
Old code did this only for FirstChar..LastChar range. Other characters were
added when they were missing in FirstChar..LastChar and dropped otherwise.

[lib/pdf_font.ps]

2007-02-01T17:37:59.714396Z leonardo

Fix (memory management) : Propagate error codes from mark_allocated.

DETAILS :

This change is algorithmically equivalent,
except it returns error code rather than crash
when mark_allocated detects a heap damage.

The old code implemented "assert" with emitting a segfault.
However it's not fully portable,
because some platforms may have no memory protection at all.

The core of the change is in mark_allocated.
Others just an interface changes for passing error codes.

[src/isave.h src/zvmem.c src/isave.c]

2007-02-01T03:06:58.503326Z Alex Cherepanov

Bring TrueType font recognition in .loadfontfile procedure up to
the level of resourcefont procedure in the PDF interpreter. Identify
files starting with <00010000>, (true), (typ1), (ttcf) as TrueType
fonts.

[lib/gs_ttf.ps]

2007-02-01T02:09:25.308943Z Alex Cherepanov

Change the status of 09-56-1 to AOK.  /GenericImagesetter and
/AppleMonitor are sample CRD's left in the final product by a sloppy OEM.
Ghostscript doesn't have nor need them.

[doc/pscet_status.txt]

2007-01-31T22:02:34.998982Z Alex Cherepanov

When Tf refers to an unknown resource name, use the resource name as a font
name. This fully recovers the given sample file and avoids fatal PostScript
errors in other cases. Bug 689037.

[lib/pdf_font.ps]

2007-01-31T21:32:33.370701Z leonardo

pscet_status.txt : Updating 09-47K-5.

[doc/pscet_status.txt]

2007-01-31T20:20:51.337129Z leonardo

Fix : gcc warnings.

DETAILS :

The revision 7659 change appears imperfect,
because it caused a new warning.
Thanks for Peter L. Deutsch for pointing this out.

[src/gdevpdfm.c]

2007-01-31T18:27:26.594065Z Ralph Giles

Remove -Wcast-qual since we cannot easily remove many of these 
warnings.

[src/configure.ac]

2007-01-31T12:49:22.229510Z leonardo

Fix : Cygwin/gcc warnings.

[src/gdevpdfm.c src/vdtrace.h src/gxhintn.c src/gdevpdtc.c src/gdevpsf2.c src/gsdps1.c src/gdevbit.c src/sjpx.c src/gxclrast.c src/ttinterp.c src/ttcalc.c src/gxpath.c]

2007-01-31T07:01:37.959449Z L. Peter Deutsch

Fixes a bug in the DCTDecode filter that could cause segvs (bugs 689064,
689065, 689066).  This fix parallels r3097 for DCTEncode.

[src/zfdctd.c]

2007-01-31T00:09:21.445386Z leonardo

Fix (True Type renderer) : Allow TTC format 2.

DETAILS :

Patch from Tor Andersson.

[src/ttfmain.c]

2007-01-30T00:16:34.929061Z L. Peter Deutsch

Documents reduced diffs in 30-07-3 and 30-08-3 (due to -dLOCALFONTS).

[doc/pscet_status.txt]

2007-01-29T10:58:45.949654Z leonardo

Fix (True Type renderer) : Account glyph bbox when setting up the cache device (continued).

DETAILS :

The patch 
http://ghostscript.com/pipermail/gs-cvs/2007-January/007142.html 
appears incomplete. This one fixes that.

[src/zfcid1.c]

2007-01-28T16:53:40.876356Z L. Peter Deutsch

Update 09-56-3.

[doc/pscet_status.txt]

2007-01-27T22:47:05.784106Z L. Peter Deutsch

Marks 13-05-3 as AOK.

[doc/pscet_status.txt]

2007-01-27T22:21:53.454207Z L. Peter Deutsch

Updates 20-14-1 to reflect CPSI/Tek discrepancy (gs is OK).

[doc/pscet_status.txt]

2007-01-27T22:19:38.871909Z L. Peter Deutsch

(empty)

[doc/pscet_status.txt]

2007-01-27T22:16:46.326515Z L. Peter Deutsch

Changes the first argument of the object_type procedure for gs_memory_t
structures from gs_memory_t * to const gs_memory_t *, to clear up a couple
of compiler warnings.

[src/gsmemlok.c src/gsmalloc.c src/gsmemret.c src/gsalloc.c src/iutil.c src/gsmemory.h]

2007-01-27T20:14:52.445142Z L. Peter Deutsch

Fixes two harmless compiler warnings.

[src/iscanbin.c src/sdcparam.c]

2007-01-27T13:53:57.786714Z Alex Cherepanov

Fix a bug, introduced in rev. 7513, that caused /undefined in setpagedevice
when -dNOBIND flag was in effect and a similar bug in restore.

[lib/gs_dps1.ps lib/gs_setpd.ps]

2007-01-26T16:49:00.711282Z Alex Cherepanov

Move image interpolation tweaks from gs_init.ps which runs after pdf_draw.ps
to gs_img.ps which runs before pdf_draw.ps. This way, image operator can be bound
in pdf_draw.ps subject to NOBIND/DELAYBIND flages. Bug 688890, customer 1110.

[lib/gs_img.ps lib/pdf_draw.ps lib/gs_init.ps]

2007-01-26T16:33:54.732615Z Ray Johnston

Fix some gcc compiler warnings.

[src/gsiorom.c]

2007-01-26T16:17:07.791783Z L. Peter Deutsch

Cleans up a couple of compiler warnings.

[src/idstack.c src/isave.c]

2007-01-26T15:07:50.030216Z Alex Cherepanov

Minor clean-up of pscet_status.txt for better parsing.

[doc/pscet_status.txt]

2007-01-26T14:58:58.339198Z L. Peter Deutsch

Updates doc to reflect fixes made by r7642.

[doc/pscet_status.txt]

2007-01-26T01:11:52.301371Z L. Peter Deutsch

Makes FontDirectory (including Local, Global, and Shared) read-only, using
.forceput, .forceundef, and superexec where necessary to modify them.
superexec now affects undef and .setmaxlength as well as put; .dictcopynew
is renamed .forcecopynew and will store into a read-only dictionary, just
like .forceput.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE required for
fixing numerous diffs in the PS3 CET.

[src/zdict.c lib/gs_dps1.ps lib/gs_fonts.ps src/zgeneric.c lib/gs_init.ps]

2007-01-25T11:10:07.381566Z leonardo

pscet_status.txt : Misprints in 11-19-6 .

[doc/pscet_status.txt]

2007-01-25T11:04:35.971950Z leonardo

pscet_status.txt : (1) Updating 11-19-6 related pages, (2) Passing FontDirectory to Peter.

[doc/pscet_status.txt]

2007-01-24T02:19:24.701691Z Ray Johnston

Change some files to OK that match CPSI that hadn't been updated
due to an error in Ray's regressionthe toolchain from a while ago.
(Problems in toolchain have been resolved).

[doc/pscet_status.txt]

2007-01-24T01:54:13.435614Z Ray Johnston

Change some 09- group tests that were incorrectly reviewed to DIFF (until
Igor can determine whether or not they are a GS problem). At the best they
need to be AOK since GS differs from both CPSI and Tek.

Change some others to OK or AOK to reflect recent improvements detected
during regression testing.

[doc/pscet_status.txt]

2007-01-23T13:42:42.135988Z leonardo

Fix (pdfwrite) : A crash when /OUT pdfmark refers to undefined node.

DETAILS :

Bug 688927 "ps2pdf segfaults on inconsistent subordinate Count parameter in bookmark pdfmarks".

The test document is incorrect, but we must not crash with it.

1. Inserted a check into pdfmark_write_outline.
2. Propagated error code from pdfmark_write_outline.
3. With the test case an error message contained a wrong device name (imain.c).

[src/gdevpdfm.c src/imain.c src/gdevpdf.c]

2007-01-22T23:23:20.791601Z L. Peter Deutsch

Fix a problem created by r7629 (invalidaccess with shading patterns with a
file data source).

[lib/gs_ll3.ps]

2007-01-22T15:44:31.388315Z leonardo

Fix (pdfwrite) : Handle an invalid Type 3 font that misses setcharwidth, setcachedevice[2].

DETAILS :

Bug 688895 "ps2pdf aborts with "Error: /unregistered in --show--"".

The test document embeds an invalid Type 3 font : the character /s32 calls neither
setcachedevice nor setcachedevice2 nor setcharwidth. 

PLRM3 page 339 reads :

[beg quote]
BuildGlyph must execute one of the following operators to pass width and
bounding box information to the PostScript interpreter. This must precede 
execution of any path construction or painting operators describing the glyph.

setcachedevice establishes a single set of metrics for both writing modes, and
requests that the interpreter save the results in the font cache if possible.

setcachedevice2 (LanguageLevel 2) establishes separate sets of metrics for 
writing modes 0 and 1, and requests that the interpreter save the results in the font
cache.

setcharwidth passes just the glyph's width (to be used only once), and 
requests that the glyph not be cached. This operator is typically used only if the glyph
description includes operators to set the color explicitly.
[end quote]

Adobe appears to handle such fonts silently in both Postscript and PDF.
This patch provides same behavior. 

The difference from the old code appears pretty small :
the old code set the charproc_accum flag while executing pdf_text_set_cache,
and the new one does when entering the substream.
The new code even more natural.

In the PDF output, for incorrect glyphs the Width array element 
is set to zero, and d0, d1 operators are not written into the charproc.

Printing a warning about the incorrect charproc appears difficult
due to the necessity to suppress redundant messages.
It needs to add a new field into the gs_font structure.
We do not like to modify the general gs_font structure for such small reason.
Postponing this change until it is requested in prcatice.

[src/gdevpdtt.c src/gdevpdti.c]

2007-01-22T14:34:04.454804Z leonardo

Fix : MSVC8 build of revision 7630 crashes in zupath.

DETAILS :

Herre are rules from "INTERNATIONAL STANDARD cISO/IEC ISO/IEC 9899:1999 
(E) Programming languages - C" :

unary-expression: unary-operator cast-expression
cast-expression: unary-expression
unary-expression: postfix-expression
postfix-expression: postfix-expression ++

Thus *pnargs++ analyzes as *(pnargs++) .

[src/zupath.c]

2007-01-22T10:29:52.528717Z leonardo

Fix (PS interpreter) Discontinue the interpretation on interrupt.

DETAILS :

Bug 688817 "Endless 'interrupt in interrupt' with GSAPI".

When a GSAPI client tries to stop GS by returning a negative value 
from the polling callback function, GS enters an infinite loop 
handling cascading "interrupt" exceptions.

Thanks to SaGS for the patch.

[doc/API.htm src/interp.c]

2007-01-22T07:55:43.384402Z Henry Stiles

Changes to reflect Peter's CET report.

[doc/pscet_status.txt]

2007-01-22T03:26:28.018030Z L. Peter Deutsch

Fixes bug: writeobject/printobject didn't zero out the 'unused' fields in
marks and nulls.  (PS3 CET 23-36-2)

[src/zbseq.c lib/gs_btokn.ps src/iscanbin.c]

2007-01-22T02:44:19.583444Z L. Peter Deutsch

Fixes bug (PS3 CET 17-0[1-5]-3): if a user path ended with extra operand
values, they were not popped from the stack.

[src/zupath.c]

2007-01-21T17:53:13.749920Z L. Peter Deutsch

Fixes the ReusableStreamDecode filter so that it allocates the stream in the
correct VM (per the PLRM3), rather than the current VM, even when it is
necessary to read the entire contents of the source into a string.  (PS3 CET
23-12W-2) Also fixes filters in general so that they allocate the stream in
the correct VM, rather than always allocating in local VM if the current VM
is local.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE.

[src/zfilter.c lib/gs_frsd.ps src/zfrsd.c]

2007-01-21T09:36:41.173881Z leonardo

Fix (Type 1 hinter) A crash while recognizing a missed flex.

DETAILS :

Bug 688931 "gs segfaults in t1_hinter__fix_missed_flex".

The old code didn't check whether a contour has
enough poles for flex.

[src/gxhintn.c]

2007-01-21T09:35:30.219957Z leonardo

Unwind 7625 due to wrong log message.

[src/gxhintn.c]

2007-01-21T03:37:46.930537Z Alex Cherepanov

Apply standard font substitutions in lib/pdf_fonts.ps::TTfonts 
only for fonts that are not already known to the PS intrepreter. 
This allows to customize font substitutions via the Fontmap.

The change affects only TrueType fonts that are NOT embedded 
(less portable PDFs, for which GS already gives a warning).
Bug 688901, patch from SaGS.

[lib/pdf_font.ps]

2007-01-20T20:44:36.957513Z leonardo

Fix (pdfwrite) Don't reassign object ID for shared descendent fonts.

DETAILS :

Bug 689054 "pdfwrite : missed object".

The old code erroneusely assigned object ID at second time
when a descendent CID font is shared with several Type 0 fonts.

[src/gxhintn.c]

2007-01-20T18:39:23.028704Z leonardo

Fix (pdfwrite) Don't reassign object ID for shared descendent fonts.

DETAILS :

Bug 689054 "pdfwrite : missed object".

The old code erroneusely assigned object ID at second time
when a descendent CID font is shared with several Type 0 fonts.

[src/gdevpdtf.c]

2007-01-20T12:12:17.802265Z leonardo

pscet_status.txt : Updating 29-05-1.

[doc/pscet_status.txt]

2007-01-20T12:09:37.803100Z leonardo

pscet_status.txt : Updating 29-05-1.

[doc/pscet_status.txt]

2007-01-20T11:33:47.048661Z leonardo

pscet_status.txt : Updating 11-19-6 related pages.

[doc/pscet_status.txt]

2007-01-20T00:40:23.279249Z Alex Cherepanov

Adobe interpreters report simple errors in undefineresource operator but
report more complicated errors in the executable name. We are trying to
reproduce this. CET 23-33.

[doc/pscet_status.txt lib/gs_res.ps]

2007-01-19T14:00:14.789036Z Alex Cherepanov

Adobe interpreters have resourcestatus operator but report errors in the
executable name. We do the same now.

[doc/pscet_status.txt lib/gs_res.ps]

2007-01-19T04:09:50.480586Z L. Peter Deutsch

Updates the PDF interpreter for the change in the 'token' operator (r7616),
which now may or may not pop its operand if an error occurs.

[lib/pdf_base.ps lib/pdf_rbld.ps]

2007-01-18T20:25:30.206946Z leonardo

Provide the CPSI compatibility for strokepath.

DETAILS :

This is 1st of 2 closely related changes to gxstroke.c .
It changes behavior in the CPSI compatibility mode only.
The main workers are stroke_add_compat, stroke_add_initial_cap_compat.

The strokepath contours are always positive rather some
older CPSI versions generate negative ones in some circumstances.
We believe that positive contours only is the correct behavior,
because it complies with other contours such as arcs or
character outlines. Otherwise non-zero winding rule filling
gives an unexpected result when combining various paths in a
single path.

[doc/pscet_status.txt src/gxstroke.c]

2007-01-17T21:10:47.794679Z L. Peter Deutsch

For Adobe compatibility (PS3 CET 23-32), changes the token scanner so that
it pops the source operand from the stack and retains a copy of it
internally.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE: it affects all
callers of scan_token (see src/iscan.h and src/itoken.h), and it also
changes the error behavior of the 'token' operator (the operand is no longer
on the stack if the error is detected during scanning, e.g. syntaxerror).

[src/imain.c src/iscan.c src/itoken.h src/ziodev.c src/interp.c src/iscan.h src/inobtokn.c src/iccfont.c src/iscanbin.c src/imainarg.c src/ztoken.c src/iscanbin.h]

2007-01-17T19:59:36.495603Z Ray Johnston

Fix for (yet another) a PDF file that does not meet Adobe's PDF spec,
but Adobe Reader opens silently. In this case there is an Annotation
that is missing the required /N (Normal Appearance) entry. Bug 689045
for customer 531. Thanks to "SaGS" for this fix.

[lib/pdf_main.ps lib/pdf_draw.ps]

2007-01-17T06:09:38.193145Z L. Peter Deutsch

Removes an unneeded inclusion of interp.h in zfile.c.

[src/int.mak src/zfile.c]

2007-01-17T04:50:36.979684Z Henry Stiles

23-12E-2 fix/analysis from Peter.

[doc/pscet_status.txt]

2007-01-17T03:36:18.909547Z L. Peter Deutsch

Fixes bug (PS3 CET 23-32-4): immediately evaluated names in binary object
sequences were treated as literal (not evaluated).

[src/iscanbin.c]

2007-01-16T17:07:06.634739Z leonardo

Revert strokepath to revision 7213.

DETAILS :

This is 1st of 2 closely related changes to gxstroke.c .

We intend to provide a full CPSI compatibility for
strokepath in the CPSI compatible mode.
Recent chages do not provide it.
Therefore we unwind to the last clean revision,
which we had before starting PS CET compliance.
We will commit a fully different implementation
as the next patch.

This change restores the gxstroke.c revision 7213,
which we had immediately before the 7464 change.
Thus it effectively unwinds the following changes :
Revision 7464 Fri Dec  8 02:22:36 2006 UTC by leonardo 
Revision 7488 Mon Dec 11 00:56:42 2006 UTC by lpd 
Revision 7501 Wed Dec 13 04:15:29 2006 UTC by leonardo 
Revision 7563 Thu Jan  4 18:36:37 2007 UTC by ray 

Rather this change does regress pscet_status.txt,
we don't update pscet_status.txt with this it.
Will update it in the next related patch.

[src/gxstroke.c]

2007-01-16T03:28:39.350220Z Ray Johnston

Fix for regressions introduced with rev 7217 (returning proc as array
rather than packedarray for PS CET 09-33-5.PS. Fixes FTS 050-01.ps and
246-01.ps.

[lib/gs_dps2.ps]

2007-01-15T16:05:00.071592Z leonardo

pscet_status.txt : Updating 16-01-1 and related pages.

[doc/pscet_status.txt]

2007-01-15T11:22:36.413144Z leonardo

Provide the CPSI compatibility for Type1 subglyph placement (continued 3).

DETAILS :

This change is algorithmically equivalent.
It provides a better data naming and documentation.

1. save_lsb is renamed into compound_lsb.
2. Improved some comments.

[src/gstype1.c src/gxtype1.c src/gxtype1.h]

2007-01-15T10:59:56.313683Z leonardo

Provide the CPSI compatibility for Type1 subglyph placement (continued).

DETAILS :

This change is algorithmically equivalent.
It provides a better data naming and documentation.

1. save_asb is renamed into asb.
2. Improved comments for asb_diff, adxy.
3. Used adxy in the overall_x_offset formula in stead save_adxy.
   The letter is a temporary cell for passing seac info across
   the baze glyph.

[src/gstype1.c src/gxtype1.h]

2007-01-15T10:56:38.302709Z leonardo

Provide the CPSI compatibility for Type1 subglyph placement (continued).

DETAILS :

This change is algorithmically equivalent.
It provides a better data naming and documentation.

1. save_asb is renamed into asb.
2. Improved comments for asb_diff, adxy.
3. Used adxy in the overall_x_offset formula in stead save_adxy.
   The letter is a temporary cell for passing seac info across
   the baze glyph.

[src/gxtype1.c]

2007-01-13T18:40:16.945779Z L. Peter Deutsch

Fixes some long-standing data-dependent bugs in the CCITTFaxDecode filter
caused by incorrect initialization.  PS3 CET 23-12E-2.  Also cleans up some
formatting.

[src/scfd.c src/scfe.c src/scfx.h]

2007-01-12T22:15:32.979541Z Russell Lang

Remove old 16-bit Windows code.

[src/gs16spl.c src/gs16spl.rc src/dwmain16.def doc/Develop.htm src/gswin386.rc src/gs16spl.def]

2007-01-12T21:08:02.193820Z Ray Johnston

Mark more files found that had been previously fixed that were still
DIFF. Mark 12-07C-7 OK since it matches Tek hardcopy (no thin lines).

[doc/pscet_status.txt]

2007-01-12T10:23:50.245821Z leonardo

Provide the CPSI compatibility for Type1 subglyph placement.

DETAILS :

Debugged with CET 16-01-1 16-02-1 16-10-1 16-10-2.

The new 'seac' offset formula 'overall_x_offset'
has been empirically derived from placements of
the "round" accent subglyph in the CPSI rendering.

[doc/pscet_status.txt]

2007-01-12T10:23:19.005476Z leonardo

Provide the CPSI compatibility for Type1 subglyph placement.

DETAILS :

Debugged with CET 16-01-1 16-02-1 16-10-1 16-10-2.

The new 'seac' offset formula 'overall_x_offset'
has been empirically derived from placements of
the "round" accent subglyph in the CPSI rendering.

[src/gstype1.c src/gxtype1.c src/gxtype1.h]

2007-01-11T18:55:08.974207Z Ray Johnston

Updates for pages fixed as of rev 7598.

[doc/pscet_status.txt]

2007-01-11T10:52:11.037894Z leonardo

pscet_status.txt : Closing issues which appear fixed with rev 7542.

[doc/pscet_status.txt]

2007-01-11T00:01:03.763372Z L. Peter Deutsch

Changes user paths so that in CPSI mode, setbbox appends a moveto only if
the path is otherwise empty.  Fixes a regression in PS3 CET 11-17 caused by
r7512.

[src/zupath.c]

2007-01-10T20:20:52.346731Z Alex Cherepanov

Adobe interpreters appear to accept sampled images in the pattern
color space using the base color space instead of the pattern space.
We do the same in the compatibility mode to meet CET 12-07a-12.

[doc/pscet_status.txt src/zimage.c src/zimage3.c src/iimage.h src/int.mak src/ztrans.c]

2007-01-10T17:04:22.171453Z leonardo

pscet_status.txt : Assigning the 29-05-1 regression.

[doc/pscet_status.txt]

2007-01-10T14:55:01.076741Z leonardo

pscet_status.txt : Taking assignment for strokepath problems.

[doc/pscet_status.txt]

2007-01-10T14:47:52.238215Z leonardo

Implementing a smart filling rule.

DETAILS :

With CET 16-01.PS CPSI fills some contours with the even-odd rule,
and others with non-zero rule.

We implement a new rule, which counts signed even-odd numbers 
for each contour independently, and then summarizes them.

The new rule works for all characters in CPSI mode only.
Probably we don't need it for True Types,
but currently the filling algorithm doesn't recieve
the information about the font type.
Will do later on necessity.

For a faster result we generate more 4 instances of
TEMPLATE_spot_into_trapezoids, which deal with the smart winding only.

Removing Raph's hack about even-odd filing rule for Type 1 (zchar1.c).
The new rule perfectly works instead that together with
the contour sign adjustment, which was inplemented few days ago.

The new array line_list::windings stores winding numbers per contour.
The macro ADVANCE_WINDING computes the smart winding rule.
We wouild like to optimize it (to get a smaller portable code),
suggestions are welcome.

[doc/pscet_status.txt src/gxfilltr.h src/gxfill.c src/zchar1.c src/gxfill.h]

2007-01-10T02:15:52.050522Z L. Peter Deutsch

Adds some PLRM-required but formerly missing legality checks for binary
object sequences, mostly for the benefit of PS3 CET 23-32-2.

[src/ibnum.h src/iscanbin.c src/ibnum.c]

2007-01-09T23:41:08.403891Z leonardo

Type 1 hinter : Implementing a contour sign normalization, part 6.

DETAILS :

Bug 687826 "some glyphs filled in".
This old bug contains more test cases,
which allowed to improve the algorithm.

1. gx_intersect_small_bars returned a root,
   which appears outside the bar 1. 
2. A wrong index in t1_hinter__intersect_curve_bar. 
3. A wrong index in t1_hinter__contour_intersection.
4. Increased MAX_NORMALIZING_CONTOURS to 5 as in the '%' sign.
6. The check for contours number was wrong in 
   t1_hinter__fix_contour_signs.

[src/gxhintn1.c src/gsmisc.c]

2007-01-09T21:15:01.944411Z leonardo

Type 1 hinter : Implementing a contour sign normalization, part 5.

DETAILS :

Removes bugs from the last patch.
It finaly closes Bug 688947  
"Ghostscript renders font incorrectly (letter 'o' filled in)",
but CET 16-01.PS still has problems.

1. 'e2' was wrong - Debugged with a.pdf .
2. (optimization) Return if no nesting contours.
   nesting_sum works for that.
3. Removed the check "this->subglyph_count <= 1",
   which was entirely wrong.   
4. In zchar1.c restoring Raph's trick about 
    using even-odd filling rule in the CPSI compatible mode.
   It was unintentionally removed by the last patch.
   No, we don't want it to live prmanently,
   but now it's not the right time for removing it.

[src/gxhintn1.c src/zchar1.c]

2007-01-09T18:40:39.016764Z leonardo

Type 1 hinter : Implementing a contour sign normalization, part 4.

DETAILS :

This fixes the bug 688947  
"Ghostscript renders font incorrectly (letter 'o' filled in)".

The new code recognized wrong contour signs
for non-resident Type 1,2,11 fonts
and fix contour signs with reversing wrong contours.

[src/lib.mak src/gxhintn.c src/gxhintn1.c doc/Develop.htm src/gxhintn.h src/zchar1.c]

2007-01-09T18:36:48.563296Z leonardo

Type 1 hinter : Implementing a contour sign normalization, part 3.

DETAILS :

This is continuation of the preparation for fixing the bug 688947  
"Ghostscript renders font incorrectly (letter 'o' filled in)".

This change is algorithmically equivalent.
It factors out gx_intersect_small_bars from the shading code.

[src/lib.mak src/gxfixed.h src/gsmisc.c src/gxshade6.c]

2007-01-09T14:19:27.902081Z L. Peter Deutsch

Fix a typo in the description of 23-12U-1 (which is now fixed).

[doc/pscet_status.txt]

2007-01-09T01:54:00.530728Z L. Peter Deutsch

Changes the token scanner so that ^D is not a self-delimiting character when
scanning a string.  This still treats ^D as a self-delimiting end-of-job
marker when reading from a file, while matching CPSI on PS3 CET 21-11-2.

[src/iscan.c lib/gs_pdfwr.ps]

2007-01-09T01:39:44.244785Z Henry Stiles

Update to reflect Peter's fixes and analyis.  Also reassign color
problems to Raph.

[doc/pscet_status.txt]

2007-01-08T22:02:29.175398Z Ray Johnston

Updates from regressions, Assign some previously unassigned pages,
correct some 'bad entry' lines (seen by the perl script).

Note there have been many pages that had significant differences
previously marked OK, that are now fixed. We may need to recheck
some of the high difference count pages that have no explanation
(such as "matches Tek hardcopy").

[doc/pscet_status.txt]

2007-01-08T20:12:52.623854Z Ray Johnston

Make sure there is a default value (0) for DEBUGSYSM. Fixes an non
debug syntax error seen by nmake.

[src/msvccmd.mak]

2007-01-08T15:04:53.833474Z leonardo

Type 1 hinter : Implementing a contour sign normalization, part 2.

DETAILS :

This is continuation of the preparation for fixing the bug 688947  
"Ghostscript renders font incorrectly (letter 'o' filled in)".

This change is algorithmically equivalent -
the new stuff works idle.
It define necesary data structures and flows
for storing information about subglyphs.
The implementation itself will be a next step.

[src/gstype1.c src/gstype2.c src/gxhintn.c src/gxhintn.h]

2007-01-08T12:50:48.444121Z leonardo

Type 1 hinter : Implementing a contour sign normalization, part 1.

DETAILS :

This is a preparation for fixing the bug 688947  
"Ghostscript renders font incorrectly (letter 'o' filled in)".

Several fonts in wild appear to violate the Type 1
restriction for inner contours to be of negative sign.
They cause a wrong rendering of some glyphs,
such as 'o' in the test case. Rather we consider
those fonts to be incorrect, we need a workaround for them
because this annoying problem appears too frequently.
At last CET 16-01.PS defines such font.

We assume that True Types always have right contours,
because (1) we didn't meet such cases in practice.
We also assume that resident fonts always have right contours,
bvecause resident fonts usually don't come from wild.

Therefore we need 4 working modes for type 1 hinter :
1. "pass_through" : no hinting, no contour adjustment.
   Works for resident fonts of a big size,
   and/or when the target is the path bbox accumulator.
2. "disable_hinting" : no hinting, contour ajdustment is on.
   Works for non-resident Type 1 fonts of a big size,
3. The hinting is enabled, the contour adjustment is disabled.
   Works for not-big non-resident fonts except True Types.
   We want to save CPU time expense from the contour adjustment.
4. The hinting is enabled, the contour adjustment is enabled.
   Works for not-big embedded Type 1 fonts.

This change is algorithmically equivalent.
It define necesary flags and data flows,
which will be used in the implementation.
The implementation itself will be a next step.

[src/gstype1.c src/gstype2.c src/gxhintn.c src/gxhintn.h]

2007-01-08T05:50:33.566930Z L. Peter Deutsch

Cleans up a couple of compiler warnings.

[src/geninit.c]

2007-01-08T04:15:31.387003Z Alex Cherepanov

Change status of CET 12-13-5 to OK. The test works for me. There's no
differences around 30 and 31 in left column or anywhere else. The checksum
matches too.

[doc/pscet_status.txt]

2007-01-07T21:05:45.304456Z Ray Johnston

Update to reflect improvements from rev 7563 (strokepath fix). Thanks to
Tim Osborn for this fix. Minor revision to analysis on some that still have
other problems in addition to the strokepath.

Note that a few pages that should have been classified DIFF had substantial
difference counts due to the strokepath incompatibility. These remain as
OK, but the status line now reads "Fixed by rev 7563."

[doc/pscet_status.txt]

2007-01-07T17:44:41.459825Z leonardo

Fix (shadings) : Ignore a huge BBox.

DETAILS :

Bug 689027 "Error: /rangecheck in --.buildshading2--".

A buggy software "xFlow Normalizer 1.0" created a huge shading BBox.
Adobe appears to ignores it silently.
In this case the clipping box sets a natural extent for the shading.

[src/gsshade.c]

2007-01-07T06:48:38.482771Z Ralph Giles

Code cleanups. Add a license, and move some things into functions. This 
version has not been tested.

[toolbin/tests/run_parallel]

2007-01-07T06:47:46.661532Z Ralph Giles

Check in rough script for launching a parallel regression run on an 
OpenPBS-based cluster queuing system. This script runs 'upnodes' and 
chooses a likely target and job size, generates comparefiles.* and 
testing.cfg.* for each node, then submits the job.

Output is returned as a file in the launch directory 
'run_regression..e<jobid>' when the run is finished.

[toolbin/tests/run_parallel]

2007-01-07T06:42:22.794330Z Ralph Giles

Changes to the regression tools to facilitate parallel runs.

DETAILS:

Add a scratchdir entry to testing.cfg to specify where temporary files
should be created instead of using the current working directory. 

Override various TextTestResult methods to print 'checking...result'
all at once instead of waiting while the job runs to reduce log 
mangling. The old behaviour was helpful behavior in an interactive 
serial run, but not running in batch mode.

If the PBS_NODENUM environment variable is set, use it to select a 
custom testing.cfg.

If PBS_NODENUM is set, only run the source tests when it is zero to
avoid duplicating these.

[toolbin/tests/gscheck_raster.py toolbin/tests/gstestutils.py toolbin/tests/gscheck_pdfwrite.py toolbin/tests/run_regression toolbin/tests/testing.cfg.example toolbin/tests/gsconf.py]

2007-01-06T20:35:32.380662Z leonardo

Fix : 'show' must throw error when the current font is a CID font resource.

DETAILS :

Only 'glyphshow' is allowed when the current font is a CID font resource,
except for a cshow procedure - see comment in op_show_finish_setup.

Debugged with CET 32_all.PS page 14.

[doc/pscet_status.txt src/zchar.c]

2007-01-06T19:16:16.587431Z leonardo

pscet_status.txt : Improve some syntax/analyzis/assignments.

[doc/pscet_status.txt]

2007-01-06T08:01:06.162417Z Ralph Giles

Correct a typo.

[toolbin/tests/check_source.py]

2007-01-06T07:46:31.224903Z Ralph Giles

Exempt the jobseparator scriptlet from the Id line check.

[toolbin/tests/check_source.py]

2007-01-06T07:46:01.131216Z Ralph Giles

Exempt the jobseparator scriptlet from the Id line check.

[lib/jobseparator.ps]

2007-01-06T07:42:52.202240Z Ralph Giles

Add and Id line and appropriate properties to gs_cet.ps.

[lib/gs_cet.ps]

2007-01-05T21:23:35.938833Z leonardo

Fix : Cygwin/gcc warnings.

[src/zimage.c src/gxfcopy.c src/zcharx.c src/int.mak src/ttfmain.c src/gstext.h src/gdevpdti.c]

2007-01-05T20:44:21.517052Z leonardo

Fix (True Type renderer) : Account glyph bbox when setting up the cache device.

DETAILS :

Debugged with CET 34_all.PS page 4.
An embedded True Type font has an incorrect FontBBox :
parts of glyphs appear outside it. Uniting it with
glyph bbox helps. However using glyph bbox only
doesn't work for Dynalab fonts, so this change includes
a voluntary solution which unites FontBBox and glyph bbox.

This patch slightly change the prototypes of 
gs_type42_data_s::get_outline and gs_font_cid2_data_s::get_outline,
and their implementations. We believe that this change
must be compatible, except a case of a wrong walue was passed 
to 'wmode' argument. The PCL group must check that 
it never pass other values than 0 or 1.
In the new code the 'wmode' argument is replaced
with options enum, and other values require a bigger
array for the last argument. See commenmts in code
and the extended implementation in gs_type42_default_get_metrics.

The function zchar42_set_cache has been re4written 
to simplify its understanding. Now it accounts
the glyph bbox. We noticed that the old code 
with WMode 1 set 'w' equal to horizontal width,
which looks incorrect. The new code sets the vertical width.
Also the old code did an unuseful call to get_metrics
when WMode=1 and the vertical metric presents in the font.

The function gs_type42_default_get_metrics has been removed
due to low use. The new code replaces it with pfont->data.get_metrics.
We didn't find calls to it from the PCL code.

[doc/pscet_status.txt src/zchar42.c src/gxfont42.h src/gstype42.c src/gxfcid.h]

2007-01-05T05:19:34.969963Z Henry Stiles

Changes required for gslite release.  The new error macros did not
work with MSVC version 8.  There are still portability issues with
these macros that preclude regular use in ghostscript but they are
used by a few clients that have "looser" portability requirements.
gp_mslib.c (probably dead code) did not compile.

[src/gp_mslib.c src/gserror.h]

2007-01-05T01:53:32.094694Z Alex Cherepanov

Change the status of CET 13-03-04 and 13-12-06 to OK.
Ghostscript matches Tek hardcopy; PhotoPRINT is wrong here.

[doc/pscet_status.txt]

2007-01-05T00:48:11.270570Z Alex Cherepanov

Change the order of argument checking in awidthshow operator. Check that the
character code is in the range 0 to 255 for the base fonts. Fix CET 13-02-05.

[doc/pscet_status.txt src/zchar.c]

2007-01-04T18:36:37.189208Z Ray Johnston

Fix stroke line cap and line join for Adobe compatibility. Fixes PS CET pages:
09-24-2 09-25-2 09-26-2 09-27-3 09-30-3 09-33-3 09-38-2 09-40-23 09-41-2 09-42-5
09-43-5 09-44-5 09-48-2 09-49D-1 09-52-2 09-53-5 09-54-6 09-57-14 11-07-5 11-21-3
11-28-2 13-13-8. Thanks to Timothy Osborn for this fix.

DETAILS:

There is a slight performance impact (6%) so a follow-up change will be developed
that only generates the new style (Adobe compatible) paths when we are doing the
"strokepath" operation, not for normal "stroke".

[src/gxstroke.c]

2007-01-04T15:48:57.600517Z Alex Cherepanov

Change the order of argument checking in widthshow operator. Check that the
character code is in the range 0 to 255 for the base fonts. Fix CET 13-26-04.

[doc/pscet_status.txt src/zchar.c]

2007-01-03T14:39:50.977219Z leonardo

pscet_status.txt : Updating status for 34_all-4.

[doc/pscet_status.txt]

2007-01-03T14:38:47.322215Z leonardo

pscet_status.txt : Updating status for 34_all-4.

[doc/pscet_status.txt]

2007-01-03T10:50:15.001696Z leonardo

pscet_status.txt : Updating status for 38-01-1.

[doc/pscet_status.txt]

2007-01-03T10:30:52.705972Z leonardo

Fix : Adding OrigFont to CIDFont resources for CPSI conformity.

DETAILS :

Debugged with CET 33_all.PS .

[doc/pscet_status.txt lib/gs_cidfn.ps]

2007-01-03T09:58:15.957518Z leonardo

pscet_status.txt : Updating status for 23-36-2.

[doc/pscet_status.txt]

2007-01-03T08:43:12.193598Z leonardo

pscet_status.txt : Fixing some misprints.

[doc/pscet_status.txt]

2007-01-03T08:33:48.854716Z leonardo

pscet_status.txt : Updating status for 21-11-2.

[doc/pscet_status.txt]

2007-01-02T22:03:43.389414Z Ray Johnston

Update with some fixes found during regression of rev 7534.

[doc/pscet_status.txt]

2007-01-02T19:58:30.890285Z Ray Johnston

Fix for yet another broken PDF that AR handles silently, specifically, a
/Count value of 0 for the Pages tree. When the Count is 0, find the page
count by walking the Pages tree. Bug 689008 for customer 580 and 460.

[lib/pdf_main.ps]

2007-01-02T15:05:34.582481Z leonardo

pscet_status.txt : Updating status for 18-02G-1.

[doc/pscet_status.txt]

2007-01-02T15:02:58.997085Z leonardo

pscet_status.txt : Updating status for 18-02G-1.

[doc/pscet_status.txt]

2007-01-02T14:22:21.841353Z leonardo

pscet_status.txt : Updating status for 18-01A-1.

[doc/pscet_status.txt]

2007-01-02T11:36:03.990718Z Russell Lang

Update the Windows INF file to allow the Ghostscript PPD to be
installed on 64-bit Windows.

[lib/ghostpdf.inf]

2007-01-02T10:05:09.465463Z leonardo

pscet_status.txt : Updating status for some files.
Delaying glyph rendering problems because they require 
a deep development. Marking them with "Assign:-".

[doc/pscet_status.txt]

2007-01-02T04:58:50.214832Z Alex Cherepanov

Implement setucacheparams, ucachestatus using MaxUPathItem user parameter
to match CET 27-05-02. The test results mow match Tek 360 hard copy.

[doc/pscet_status.txt lib/gs_dps2.ps lib/gs_lev2.ps]

2007-01-01T10:13:59.639678Z leonardo

pscet_status.txt : Updating status for 14-12-3.

[doc/pscet_status.txt]

2007-01-01T03:55:18.804213Z Alex Cherepanov

CET 13-10-5 is marked as Works for me in rev. 7543

[doc/pscet_status.txt]

2007-01-01T03:00:15.457477Z Russell Lang

Remove documentation about Windows printing to LPT1: because it 
hasn't worked since we ceased to include gs16spl.exe.
Prevent attempts to use -sOutputFile="LPT1:" on Windows because 
it locks up.

[doc/Use.htm src/gp_mswin.c doc/Install.htm]

2006-12-31T22:14:23.520668Z Russell Lang

Remove Windows 16-bit and Win32s printer code.  
Update release year in Windows installer to 2007.

[src/bcwin32.mak src/dwsetup.rc src/winint.mak src/watcw32.mak src/gp_mswin.c src/gp_msprn.c]

2006-12-31T17:50:40.948265Z leonardo

Fix : Early check a text to font compatibility.

DETAILS :

Running CET 14-03.PS page 2, CPSI trows a rangechek with no painitng charaters.
However Ghostscript performs the check immediately before
rendering a character. If the check fails in a middle of the text,
the preceding charaters are painted. 

The new code scans entire text before rendering a character.
We do so in CPSI compatibility mode only,
because we don't want a performance flaw for
dual scanning in the Ghostscript native mode.

1. gs_text_size is renemed into gs_text_count_chars 
   for a better reflection of its semantics.

2. The check in zyshow is made conditional
   depending on CPSI_mode. This is an improvement
   for the last patch, which is not related to 
   the current problem (zcharx.c).

3. Inserted the text scanning into op_show_finish_setup
   (zchar.c).

4. After we did all bove, 14-01.PS got cycled in alloc_char_in_chunk.
   This effect occasionally depends on 1-3 because 
   they change the cache memory map.
   Fixed with inserting the call to gx_free_cached_char into gxchar.c .

5. gs_text_count_chars was implemented with gs_text_begin,
   which appears too heavy for the simple text decomposition.
   Particularly it caused a proiblem with stringwidth,
   because gs_text_begin establishes an extra save level
   for stringwidth. The new code calls gs_text_enum_init 
   instead gs_text_begin. Due to that gs_text_count_chars 
   is moved to gxchar.c, which defines default_text_procs privately.

[doc/pscet_status.txt src/gxchar.c src/gstext.c src/zcharx.c src/zchar.c]

2006-12-30T22:58:47.430654Z Ralph Giles

Record the regression run time in the nightly report.

[toolbin/tests/run_nightly]

2006-12-30T13:31:18.340006Z leonardo

Fix : Don't check type of extra width elements with yshow.

DETAILS :

CET 13-29.PS page 2 defines a longer width array
then the text requires, and CPSI silently ignores extra elements.
So yshow needs to compute exact number of characters 
to know how many elements to load and type check.

The new function gs_text_size is factored out from the
recently added code so that zcharx.c can share it.

Minor change : Improving a comment in gspaint.c,
with another issue recently discovered.
It's not related to the yshow problem.

[doc/pscet_status.txt src/gstext.c src/zcharx.c src/gstext.h src/gspaint.c]

2006-12-30T11:50:34.673289Z Alex Cherepanov

Updating status for 11-20-9

[doc/pscet_status.txt]

2006-12-30T11:06:55.417315Z leonardo

pscet_status.txt : Updating status for 13-23-1.

[doc/pscet_status.txt]

2006-12-30T10:40:18.858942Z leonardo

pscet_status.txt : Updating status for 10-15-2 (final).

[doc/pscet_status.txt]

2006-12-30T09:08:31.731942Z leonardo

pscet_status.txt : Updating status for 10-15-2.

[doc/pscet_status.txt]

2006-12-30T06:15:56.641068Z Ray Johnston

Note some pages that now have no differences as detected during
regression testing.

[doc/pscet_status.txt]

2006-12-29T20:59:39.890840Z leonardo

Fix : The CPSI compatibility for 'clippath' starting point.
pscet_status.txt : A better classification for strokepath problems.

DETAILS :

Debugged with :
CET 13-22.ps page 6, the item much13;
CET 11-11.PS page 6, the item much13
See comment in code.

[doc/pscet_status.txt src/gsdps1.c]

2006-12-28T13:08:56.928281Z leonardo

pscet_status.txt : Passing more problems to ray since they have same reason - 
either strokepath ending point, or clippath starting point.
For details see comments added into pscet_status.txt .

[doc/pscet_status.txt]

2006-12-28T09:51:38.919829Z leonardo

pscet_status.txt : Changing assignment for 13-22-6 cash25 as discussed with Ray.

[doc/pscet_status.txt]

2006-12-27T18:27:55.782637Z leonardo

Fix : 'clippath' didn't set the current point.

DETAILS :

The bug has been introduced when we implemented the current point in 'double'.
It caused an inconsistent result when 'show' follows 'clippath',
because 'show' still uses pgs->ppath->position.
Debugged with CET 13-22.ps page 6, the item much13. 

We would like to avoid the usage of pgs->ppath->position,
but currently we nave no time for a complete analyzis.
Delaying it for better times. See bug 689031.

[src/gspath.c]

2006-12-27T11:59:15.544173Z leonardo

pscet_status.txt : A better analyzis for 13-20-6, 13-22-6.

[doc/pscet_status.txt]

2006-12-26T05:29:37.040603Z Alex Cherepanov

Calculate the old bounding box using the function that takes into account the
bounding box set by setbbox operator.

DETAILS:
This patch doesn't affect any reported bugs, CET test or regression test files.
Before the patch the following (correct) program didn't run on Ghostscript:
0 0 moveto 0 0 1000 1000 setbbox 100 100 105 105 setbbox 0 0 moveto 100 100 lineto

[doc/pscet_status.txt src/gsdps1.c]

2006-12-25T18:11:49.235030Z Alex Cherepanov

Record the fact that 11-13-4 works in rev. 7527.

[doc/pscet_status.txt]

2006-12-25T07:43:44.555732Z leonardo

pscet_status.txt : A better analyzis for recent regression, assigning to the author.

[doc/pscet_status.txt]

2006-12-24T11:46:11.723531Z leonardo

Fix (font renderer) : Expand the Type 3 character box to negative coordinates.

DETAILS :

setcachedevice, setcachedevice defines a box for clipping a character image.
According to Postscript specification, "If any marks fall outside this
bounding box, the result is unpredictable." (See PLRM3 page 659).

Some CET tests defines a Type 3 characters, which have the bbox
[0 0 1000 1000] and then execute "10 10 1000 1000 rectstroke" for 
painting the character. Some parts of that rectangle fall slightly 
outside the box, but both CPSI and Tek paint them.

When caching a character, the old Ghostscript code expands the character box to
increasing coordinates. It allows to paint charater elements,
which fall slightly outside the box. However the old code doesn't
expand to negative (decreesing) direction, causing an asymmetric behavior.
For example in CET 13-18.PS a Type 3 charater missed its elements
depending on the device initial matrix : with display device
the character doesn't miss elements, but with ppmraw device 
(which has initial matrix with mapping Y upside down)
the character missed a horizontal line, which with 600dpi falls to 
t5he pixel coordinate Y=-1.

This patch provides the box expansion in all 4 directions.
Rather the problem happens mainly with Type 3 fonts
the patch changes the behavior for all font types.

Note : Some characters may occupy a bigger space in the cache,
so the memory map changes.

Note2 : We're not sure why the old code expands the box
in 2 pixels. Likely 1 pixel is a strong expansion, 
and another one compensates an inaccurate rounding.
We don't change it now to minimize raster differences.

[doc/pscet_status.txt src/gxchar.c]

2006-12-24T08:31:52.050751Z leonardo

pscet_status.txt : A better analyzis for few problems.
Note some regressions appeared.

[doc/pscet_status.txt]

2006-12-22T19:59:43.737163Z Ray Johnston

Properly handle ASCII85EncodePages=true for the Contents streams. This was
not implemented previously. Bug #689030 for customer #1.

[src/gdevpdfu.c]

2006-12-21T17:10:15.748193Z leonardo

pscet_status.txt : A better analyzis for few problems.

[doc/pscet_status.txt]

2006-12-21T01:15:17.469745Z Ralph Giles

Remove Copying.htm from the documentation. It is no longer relevant now 
that the tree is GPL.

[doc/Copying.htm doc/Readme.htm doc/Release.htm]

2006-12-20T04:44:43.534483Z leonardo

pscet_status.txt : An improved analysis for few problems.

[doc/pscet_status.txt]

2006-12-20T04:38:57.997599Z leonardo

pscet_status.txt : An improved analysis for few problems.

[doc/pscet_status.txt]

2006-12-18T23:03:42.655320Z Raph Levien

Fix: Don't read past end of input image stream in simscale.c. Fixes
bug #689029.

[src/simscale.c]

2006-12-18T17:56:27.005565Z leonardo

Fix (TrueType renderer) : Always access metrics via get_metrics callback.

DETAILS :

This change is important for PCL interpreter.
Some PCL downloadable fonts have no hmtx, vmtx tables
and define glyph metrics externally.
Likely we missed this functionality when attached
the TrueType bytecode interpreter from FreeType.

For both Postscript and PCL the new code is not equivalent 
to old one when processing a composite glyph
with grid fitting. For each subglyph, the old code sets phantom points
with the subglyph's metrics. The new code does with the glyph's metrics. 
We believe that the old code was not correct because its grid fitting 
can wrongly account the placement of a subglyph in the main glyph.
Rether we didn't find a practical case when it happens.

We can't directly access the font's get_metrics callback from ttfmain.c,
therefore we introduce an intermediate callback ttfReader::get_metrics.
It happens because TrueType bytecode interpreter doesn't compile
with Ghostscript headers.

[src/gxttfb.c src/ttfmain.c src/ttfoutl.h]

2006-12-18T05:00:00.292210Z leonardo

Fix  : Removing a dead code about USE_ttfReader.

DETAILS :

USE_ttfReader was introduced for PCL needs due to a poor design.
Novadays PCL code doesn't use it - sets always true.

[src/gxfcopy.c src/gxccman.c src/gxfont42.h src/gstype42.c src/zfont42.c]

2006-12-17T13:56:52.138834Z leonardo

Fix (shadings) : A fixed overflow happened while computing a color (continued).
THIS IS INCOMPATIBLE CHANGE : The device virtual method 
fill_linear_color_scanline now restores the semantics, 
which was defined before revision 7510. 
In other words, this incompatible change reverts 
the recent incompatible change.

DETAILS :

Debugged with CET 12-14O.PS SpecialTestJ02Test12.

A scanline gradient could overflow because 
the pixel span may be few wider than the spot span
due to pixel rounding.
To prevent the overflow, we base the color proportion
on the last pixel inside the span.
See comments in code.

We decided to remove "half color values"
(which were introduced in revision 7510)
from the device interface because 
they bring an extra complexity.

[src/gdevdsha.c src/gdevddrw.c]

2006-12-17T00:26:30.159180Z Russell Lang

Remove obsolete references to Windows 3.1 and Win32s.

[doc/Use.htm doc/Make.htm doc/Source.htm doc/Install.htm]

2006-12-16T22:02:38.700510Z Ray Johnston

Add a simple (one line) file that can be used bwtween files on the command line
or files run with the 'run' operator to execute the systemdict version of the
^D (ctrl-D) action to end an encapsulated job and start a new one.

This is needed since some PS files redefine <04> to a no-op (such as the PS CET
and the PSCRIPT5 Windows driver). This can be used with or without -dJOBSERVER,
but <04> is a no-op unless -dJOBSERVER is used.

[lib/jobseparator.ps]

2006-12-16T20:41:10.316519Z Ray Johnston

Fix setpagedevice /Install procedure handling so that a error from the Install
will restore the previous (presumably correct) Install and apply the Policies
for the error handling. Also fix the .execinstall so that the plumbing will
leave a predictable number of elements on the stack in case of an error.
Bug #689020 for customer #661.

DETAILS:

The .execinstall needed fixing since it could leave one extra element on the
operand stack, but sometimes it would not. The oparray_cleanup of the error
handling _would_ restore the op stack to the point where .execinstall was
invoked, but at that point, the procedure operand was part of the old stack
count. This meant that if the Install procedure pushed something on the op
stack before getting the error, it would be there after the 'stopped', but
if it didn't push anything, the stacks would be the same as if the exec was
OK.

By duplicating the procedure prior to the exec in .execinstall, we insure
that there will always be that value on the stack when stopped returns
'true'. Normal execution doesn't change and will pop the extra value created
by the 'dup'.

EXPECTED DIFFERENCE:

None.

[lib/gs_setpd.ps]

2006-12-15T18:08:57.832104Z L. Peter Deutsch

Fixes several user path problems: upath didn't signal nocurrentpoint for
empty paths in CPSI mode; appending an empty user path didn't set current
point in CPSI mode. (PS3 CET 13-27-3, 13-28-4, 13-29-3)

[src/zupath.c]

2006-12-15T18:06:08.730263Z L. Peter Deutsch

Fixes bug: gs_upmergepath didn't propagate the imager state current_point
members.

[src/gspath.c]

2006-12-15T01:58:02.667973Z leonardo

Fix (shadings) : A fixed overflow happened while computing a color.
THIS IS INCOMPATIBLE CHANGE : The device virtual method 
fill_linear_color_scanline now gets half color values 
as the gradient parameters.

DETAILS :

Debugged with CET 12-14O.PS SpecialTestJ02Test12.

A scanline gradient could overflow because 
the pixel span may be few wider than the spot span
due to pixel rounding.
Rather the expansion is always pretty small, it could cause
an int32_t overflow when storing the right limit pixel color
(which actually is never riched, because the filling algorithm
never paints the right boundary). However it caused a wrong
result in some cases.

See comments in code.

[doc/pscet_status.txt src/gdevdsha.c src/gdevddrw.c]

2006-12-14T21:40:07.608049Z leonardo

Fix (shadings) : Align coordinate data and color data to byte boundary (continued).

DETAILS :

Debugged with CET 12-14O.PS page 2.
The recent patch for the subject appears incomplete.
After debugging with more tests (ShadingType 5), 
the parameter align_color_data appears always false and goes away.

[doc/pscet_status.txt src/gxshade.c src/gxshade4.c src/gxshade.h]

2006-12-14T20:24:33.168948Z Ray Johnston

Mark some fixes detected in regression run (exact fix rev unknown -- probably
from lpd). Note that 23-12W-2 now has only a single difference.

[doc/pscet_status.txt]

2006-12-14T19:40:32.852985Z L. Peter Deutsch

For Adobe compatibility, makes 'show'-type operators signal nocurrentpoint
immediately, rather than when rendering the first character, if there is no
current point. (PS3 CET 13-27-3, 13-28-4, 13-29-3, and possibly others)

[src/gstext.c]

2006-12-14T16:28:49.465661Z leonardo

Fix (pdfwrite) : Improve the handling of SMask.

DETAILS :

The old code writes "/SMask 0 0 R" when a GState with no SMask
folows another with SMask.

Bug 689023 "regression fails with /rangecheck in --run--".
Debugged with Bug688631.pdf .

[src/gdevpdfg.c]

2006-12-14T15:50:54.428992Z L. Peter Deutsch

Changes {x,y,xy}show to check at the beginning whether the widths array is
large enough, rather than detecting this on the fly, for Adobe
compatibility. (PS3 CET 13-27-3, 13-28-4, 13-29-3)

[src/gstext.c]

2006-12-14T13:54:09.094929Z leonardo

Fix (Resource machinery) : Place temporary 'resourceforall' data into the local VM.

DETAILS :

This is an improved version of the 7449 change, 
which has been unwinded in the revision 7487,

The old code placed them into global VM,
rather some their elements may be in local VM.
Fixes the cash06 diff in PS3 CET 30-07-3.

Thanks to L. Peter Deutsch for locating the wrong code parts.

[lib/gs_resmp.ps lib/gs_res.ps lib/gs_cidcm.ps]

2006-12-13T21:18:20.233553Z L. Peter Deutsch

Fixes bug: if the source of a ReusableStreamDecode filter was a string, the
filter did not appear to be closed after executing closefile.  (PS3 CET
23-12W-6)

[src/stream.c]

2006-12-13T07:31:41.174327Z Henry Stiles

reassignments to Peter.

[doc/pscet_status.txt]

2006-12-13T04:15:29.131303Z leonardo

Fix (stroking) : The CPSI compatibility about the strokepath starting point (continued).

DETAILS :

The last patch allocates an insufficient buffer for gs_join_triangle.
It caused a wrong resiult with PCL.

[src/gxstroke.c]

2006-12-13T01:45:35.876588Z Ralph Giles

Add recent new source files to the documentation.

[doc/Develop.htm doc/Psfiles.htm]

2006-12-13T01:06:05.344921Z leonardo

Fix : Line join was missed at 'closepath'.

DETAILS :

Debugged with CET 12-12.PS page 10.

[src/gxpdash.c]

2006-12-13T00:58:41.577412Z leonardo

Fix : A CPSI compatibility for 'rectstroke'.

DETAILS :

Debugged with CET 12-12.PS page 8, 10.

PLRM doesn't specify the contour starting point for 'rectstroke'
when the rectangle width and/or height is negative.
CPSI and the old Ghostscript appear to produce different results, 
which is important with dashing. The patch provides the CPSI
compatibility when CPSI_mode is true.

[doc/pscet_status.txt]

2006-12-13T00:26:05.505126Z Ralph Giles

Reenable the jpxparmfix call, after making it check specifically for a 
JPXDecode filter. Adding a ParmDict to filters that don't take 
parameters caused problems with some PDF files. Bug 688869.

[lib/pdf_base.ps]

2006-12-12T10:22:38.092916Z Russell Lang

Windows documentation updates.

[doc/API.htm doc/Install.htm]

2006-12-12T06:26:11.719558Z L. Peter Deutsch

Fix some misspellings ("schedulled"), and remove a duplicate .undef.

[lib/gs_init.ps]

2006-12-12T04:25:21.491153Z leonardo

Fix : A CPSI compatibility for 'rectstroke'.

DETAILS :

Debugged with CET 12-12.PS page 8, 10.

PLRM doesn't specify the contour starting point for 'rectstroke'
when the rectangle width and/or height is negative.
CPSI and the old Ghostscript appear to produce different results, 
which is important with dashing. The patch provides the CPSI
compatibility when CPSI_mode is true.

[doc/pscet_status.txt src/gsdps1.c]

2006-12-12T02:43:40.792357Z L. Peter Deutsch

Fixes bug: the ReusableStreamDecode filter treated Intent values other than
0..3 as errors, rather than as equivalent to 0. PS3 CET 23-12V-1

[src/zfrsd.c]

2006-12-11T20:28:37.478193Z Ray Johnston

Mark as OK two pages fixed by rev 7489. Note that improvements were made on
the following: 23-12G-1, 23-12L-1, 23-12M-1, 23-12N-1, 23-12O-1, 23-12P-1.

There were no regressions on the PS CET as a result of rev 7489 changes to
the filter pipeline handling.

[doc/pscet_status.txt]

2006-12-11T17:30:53.980862Z L. Peter Deutsch

Fixes bug: the PNG predictor filters produced incorrect data for the last
pixel of each row.  (The encoder and decoder had matching bugs, so
encode+decode produced the correct result!)  Fixes a diff in PS3 CET
23-12U-1.

[src/spngp.c]

2006-12-11T04:48:55.149758Z L. Peter Deutsch

Raises the maximum value of Colors for PNG and PDiff filters from 16 to 60,
to prevent rangechecks in some PS3 CET 23-12{L,M,N,O,P}.

[src/zfdecode.c src/spngpx.h src/spdiffx.h]

2006-12-11T01:28:57.882333Z L. Peter Deutsch

Fixes bug: closing a filter pipeline with more than one adjacent temporary
stream (such as a compression filter with a predictor whose target was a
procedure) failed to flush all intermediate buffers, causing failures in PS3
CET 23-12*.  NOTE: This code (stream.c:swritebuf) is extremely delicate.
Regression checking is essential!

[src/stream.c]

2006-12-11T00:56:42.572973Z L. Peter Deutsch

Removes 3 compilation warnings.

[src/gxpath.h src/gxstroke.c]

2006-12-10T20:25:51.293218Z Stefan Kemper

This is a reversion to r7448
The 7449 commit created a regression where the 
language switch build wouldn't initialize.

[lib/gs_resmp.ps lib/gs_res.ps lib/gs_cidcm.ps]

2006-12-10T19:50:24.509997Z Henry Stiles

Updates from Peter.

[doc/pscet_status.txt]

2006-12-10T09:52:06.915864Z leonardo

A better analyzis for 12-12.PS .

[doc/pscet_status.txt]

2006-12-09T08:54:37.108427Z Russell Lang

Partial fix for bug 687981, changing the PPD only for Windows 2k/XP.
The INF changes for Windows 95 etc. are not included in this change.

[lib/ghostpdf.ppd]

2006-12-09T08:42:56.477752Z leonardo

Update CET test status for 12-08A-5, 12-08A-6, 12-11-4.

[doc/pscet_status.txt]

2006-12-09T08:32:28.403891Z leonardo

Fix : A wrong 'frac' color comparison caused an incorrect 12 and 16 bpc image rendering.

DETAILS :

Debugged with CET 12-07C.PS page 15 and disassembling gxi12bit.obj .

The old code wrongly computed how many 'long' values are needed to store 4 'frac' values. 
When sizeof(long)==4 and sizeof(short)==2 it gives 1.
However the right answer is 2.
Due to that the old code thinks that 'frac' colors are equal 
when they differ in 3d or 4th component.

[doc/pscet_status.txt]

2006-12-09T08:09:19.842018Z Russell Lang

Change Windows installer release date to 2006 and update disk space
requirements.

[src/dwsetup.rc]

2006-12-09T08:03:44.150164Z Russell Lang

Fix bug 688749 silent/unattended uninstaller.
Add silent uninstall option to MS-Windows ghostscript uninstaller.
Reformatted part of the code to make it match the GSview uninstaller,
on which it was based.  For a silent uninstall, use
  uninstgs.exe "path\to\uninstal.txt" -q

[src/dwuninst.cpp]

2006-12-09T07:39:00.107617Z leonardo

Fix : A wrong 'frac' color comparison caused an incorrect 12 and 16 bpc image rendering.

DETAILS :

Debugged with CET 12-07C.PS page 15 and disassembling gxi12bit.obj .

The old code wrongly computed how many 'long' values are needed to store 4 'frac' values. 
When sizeof(long)==4 and sizeof(short)==2 it gives 1.
However the right answer is 2.
Due to that the old code thinks that 'frac' colors are equal 
when they differ in 3d or 4th component.

[src/gxi16bit.c src/gxi12bit.c]

2006-12-09T06:17:34.671935Z Alex Cherepanov

Following PLRM 3 handle instances of CIDFont resource in findfont, 
definefont and undefinefont. Partly fix CET 32_all, 33_all, 34_all, 25_all.

[doc/pscet_status.txt lib/gs_res.ps]

2006-12-09T05:04:05.073394Z Russell Lang

Fix bug 688932 mswinpr2 doesn't clear temporary files.
Unwanted temporary file was being recreated during page output.  
We now delete the temporary file when the device is closed.

[src/gdevwpr2.c]

2006-12-09T04:24:39.562906Z Russell Lang

Fix bug 688930 mswinpr2 allocates wrong memory size for DEVMODE.
A printer DEVMODE structure is usually bigger than sizeof(DEVMODE)
due to printer private extra data.  Allocate the correct size
DEVMODE to include this private data.
Remove old Windows 3.1 and Win32s code.

[src/gdevwpr2.c]

2006-12-09T00:14:28.954169Z Alex Cherepanov

Validate the argument of execuserobject and undefineuserobject before trying to
access UserObjects (which may be undefined) to match CET 31-03 and 31-11.

[doc/pscet_status.txt lib/gs_dps2.ps]

2006-12-08T23:08:31.381404Z Alex Cherepanov

Report /rangecheck instead of /limitcheck from defineuserobject when the index
exceeds 65535 to match CET 31-02.

[lib/gs_dps2.ps]

2006-12-08T22:23:13.575044Z Alex Cherepanov

Report /rangecheck instead of /limitcheck from defineuserobject when the index
exceeds 65535 to match CET 31-02.

[doc/pscet_status.txt lib/gs_dps2.ps]

2006-12-08T21:47:01.938606Z Russell Lang

Change MS-Windows installer to identify itself as GPL not AFPL Ghostscript.

[src/dwsetup.rc src/winint.mak src/gp_wgetv.c src/dwsetup.def src/dwuninst.def src/dwreg.c src/dwsetup.cpp src/dwuninst.cpp]

2006-12-08T21:45:06.679656Z leonardo

Update CET test status for 12-04-5.

[doc/pscet_status.txt]

2006-12-08T19:31:55.276122Z Ray Johnston

Disable the jpxparmfix at the point of invocation since it causes many
PDF files to fail with /undefined in --run--.

[lib/pdf_base.ps]

2006-12-08T18:27:14.429697Z Alex Cherepanov

CET 31-01-08 and 31-01-09 expect the last defined idiom instance to be
effective when several of them match. PLRM says it's undefined.

[doc/pscet_status.txt]

2006-12-08T15:30:10.567087Z Alex Cherepanov

Increase maximum depth of the procedure matching in idiom recognition
to meet CET 31-01-05 and Adobe implementations.

[doc/pscet_status.txt src/zmisc3.c]

2006-12-08T14:38:26.687662Z Tor Andersson

Fix some errors in the TTC table parsing.

[src/gstype42.c]

2006-12-08T12:00:09.393817Z leonardo

Fix : Wrong current point after uappend.

DETAILS :

Debugged with CET 11-22.PS page 1.

PLRM doesn't clearly specify what should be the current point after uappend,
but very likely it is the last point of the appended path.
CPSI does so, and we follow it.

[doc/pscet_status.txt src/zupath.c]

2006-12-08T04:03:13.743254Z Alex Cherepanov

CET 20-01-2 is re-classified AOK; CPSI modifies the content of the array
arguments, if any, when operator >> fails. Ghostscript matches Tek and
Distiller 5. This is a bug in CPSI we don't want to reproduce.

[doc/pscet_status.txt]

2006-12-08T02:22:36.640014Z leonardo

Fix (stroking) : The CPSI compatibility about the strokepath starting point.

DETAILS :

Debugged with CET 11-21.PS page 10.

PLRM doesn't specify a starting point for strokepath result.
Now we choose same point as CPSI does.
It appears important if a further drawing depends on current point,
and/or when a dashing is applied to strokepath.

We don't keep the old algorithm because it is not useful.
Supporting two modes (the CPSI compatible mode and the GS native mode)
would be too complicated with no good reason.

[doc/pscet_status.txt src/gxstroke.c]

2006-12-08T00:31:05.623591Z Alex Cherepanov

CET 13-20-2 is re-classified OK; The CPSI-based PhotoPRINT SE product
has CSL installed and cannot be used as a reference here.

[doc/pscet_status.txt]

2006-12-07T17:27:20.192504Z Alex Cherepanov

CET 11-13-4 fails because Ghostscript upath doesn't detect
nocurrentpoint condition.

[doc/pscet_status.txt]

2006-12-07T17:17:35.743899Z L. Peter Deutsch

Fixes bug: makepattern didn't create all of its structures in local VM.
(two diffs in PS3 CET 30-07-3)

[lib/gs_lev2.ps]

2006-12-07T15:56:26.139005Z Alex Cherepanov

Fix MIN_INTVAL handling in the operator mul. CET 25-13.

[doc/pscet_status.txt src/zarith.c]

2006-12-06T23:48:07.446016Z Ralph Giles

Copy the /ColorSpace key (if any) from a stream dictionary into the
DecodeParms, so the JPXDecode filter implementation can access it.

Pass this key through the JPXDecode filter implementation when
the ColorSpace is Indexed to the underlying jasper implementation,
requesting that it return raw palette indexes instead of the
fully decoded image. This is necessary when the overriding PDF image
colorspace is itself paletted.

Bug 688869 for customer 531.

[src/int.mak src/sjpx_luratech.h src/zfjpx.c lib/pdf_base.ps src/sjpx.c src/sjpx.h]

2006-12-06T23:40:57.941542Z Ralph Giles

Raise the debugging level required for reporting the raw decode option key.

[jasper/src/libjasper/jp2/jp2_dec.c]

2006-12-06T23:13:19.707391Z Ralph Giles

Update the product name to GPL Ghostscript. File omitted from r7447.

[src/gscdef.c]

2006-12-06T22:25:01.101686Z Ralph Giles

Add a 'raw' option key to jp2_decode() to pass the raw palette
data back to the client without applying the included palette
for indexed images or otherwise remapping the data. Required
for Colorspace override when embedded in PDF documents.
Partial fix for bug 688869.

[jasper/src/libjasper/jp2/jp2_dec.c jasper/src/libjasper/jpc/jpc_dec.c]

2006-12-06T22:23:19.182804Z Ralph Giles

Change the included license text to refer to the GPL.
Omitted from r7446.

[LICENSE]

2006-12-06T22:01:38.950715Z Alex Cherepanov

All failures in CET 24-13-3 are caused by writable FontDirectory.

[doc/pscet_status.txt]

2006-12-06T19:59:48.793585Z Alex Cherepanov

Modify gs to match 12-14c test case:
- check that the function domain covers all of the shading domain.
- do this test early - before checking other parameters.
- tweak error handling in shfill on PostScript level to match the test.

[doc/pscet_status.txt src/zshade.c lib/gs_ll3.ps src/zfunc.c src/zfunc3.c src/ifunc.h]

2006-12-06T01:33:52.778741Z L. Peter Deutsch

Fixes bug: currentcolorscreen attempted to copy a screen procedure even if
it wasn't readable.

[lib/gs_dps2.ps]

2006-12-05T14:51:16.744559Z Ray Johnston

Change pages fixed by Peter detected in last regression run as improvements.

[doc/pscet_status.txt]

2006-12-05T04:16:20.081512Z L. Peter Deutsch

Changes the initial halftone screen procedure from a packedarray to an
array, to pacify PS3 CET 09-49D.

[lib/gs_init.ps]

2006-12-05T03:28:09.927677Z L. Peter Deutsch

Fixes bugs: many places in the implementation of resourceforall did not
always create temporary objects in local VM, which is necessary because some
of their elements may be in local VM.  Fixes the cash06 diff in PS3 CET
30-07-3.

[lib/gs_resmp.ps lib/gs_res.ps lib/gs_cidcm.ps]

2006-12-04T22:25:49.788684Z Ray Johnston

Close some 'setflat' issues as AOK where GS is close, but better at each
resolution. Now that CPSI implements setflat, the differences in Adobe
implementations justifies GS differing (slightly) as well. Cases where
GS is worse (less smooth) than CPSI and Tek still need analysis.

Reassign 09-24-2 group of problems to Ray.

[doc/pscet_status.txt]

2006-12-04T21:41:08.335595Z Ralph Giles

Update the product name to "GPL Ghostscript" and bump the version number
for the upcoming release to avoid confusion with the GNU 8.55 release.

[lib/gs_init.ps src/version.mak]

2006-12-04T21:17:43.624240Z Ralph Giles

Remove the APFL and add the GPL to reflect our now-GPL development practice. For the record, this tree has been GPL licensed since the 8.54 release, but this is now explicit.

[doc/Readme.htm doc/Public.htm doc/Commprod.htm doc/COPYING doc/gs-vms.hlp]

2006-12-04T18:17:42.359489Z Ray Johnston

Mark a few other tests as "OK" after CPSI fixed to implement 'setflat'.
and add a note to a timing dependent output.

[doc/pscet_status.txt]

2006-12-04T17:34:45.126523Z Ray Johnston

Mark some 'setflat' issues as OK. I will be replacing some of the CPSI
output after "unlocking" setflat (so that CPSI implements, rather than
ignoring setflat). Also remove (*JS) that didn't mean anything. Update
explanation on 30-01-1 from Peter.

[doc/pscet_status.txt]

2006-12-04T15:16:22.671661Z Alex Cherepanov

Accept packed arrays for the /Size element of the shading dictionary and
everywhere else where dict_int_array_param() is called. CET 31-01-06

[doc/pscet_status.txt src/idparam.c src/zimage3.c src/zfsample.c src/idparam.h src/zfunc.c src/zfunc0.c src/zfilterx.c]

2006-12-03T16:02:51.520019Z L. Peter Deutsch

For Adobe compatibility (PS3 CET 23-07 and 23-13-5), changes findresource,
defineresource, undefineresource, and resourcestatus so that errors
occurring within these operators, except for a possible initial
stackunderflow, report the (executable) operator name, rather than the
operator object, as the command a.k.a. error object.

[lib/gs_res.ps]

2006-12-03T15:52:19.386596Z Alex Cherepanov

Avoid floating point division by 0. Catch the case when all components
of the matrix equal to 0.

[src/gxhintn.c]

2006-12-03T15:52:07.896094Z L. Peter Deutsch

For Adobe compatibility (PS3 CET 09-56-1), changes findcolorrendering so
that errors report /findcolorrendering, not --findcolorrendering--, as the
command a.k.a. error object.

[lib/gs_lev2.ps]

2006-12-02T07:24:01.485014Z L. Peter Deutsch

Fixes bug: save objects are simple in LL1 and LL2, but composite in LL3, so
restore must treat save objects on the stack differently depending on the
languagelevel.  (PS3 CET 30-04-2, and some file in the PS2 tests, actually
care about this.)

[src/isave.h src/zvmem.c]

2006-12-02T06:34:29.338937Z L. Peter Deutsch

Fixes two bugs related to PS3 CET 23-07-1: Failure to find a resource
category signalled undefinedresource rather than undefined (PLRM3 bottom of
p. 105), and always reported --findresource-- as the error command rather
than the correct one.

[lib/gs_res.ps src/interp.c lib/gs_init.ps]

2006-12-01T23:17:00.226511Z Tor Andersson

Add an argument to select a specified subfont to gs_type42_font_init. This argument is only used for truetype collection (TTC) font files.

[src/gxfcopy.c src/gxfont42.h src/gstype42.c src/zfont42.c]

2006-12-01T01:34:22.593578Z L. Peter Deutsch

Corrects an error in a comment (BitsPerComponent should be Colors).

[src/spdiff.c]

2006-12-01T00:27:39.971017Z Ralph Giles

Recommit changes from r7237 so we have continuous history.

Fixes and analysis from Peter.

[doc/pscet_status.txt]

2006-12-01T00:22:19.531380Z Ralph Giles

Recommit changes from r7235 so the file has continuous history.

A couple of reassignments and fixes from Peter.  See the diffs for details.

[doc/pscet_status.txt]

2006-12-01T00:19:02.366674Z Ralph Giles

Replace pscet files with copies linked to imported history.

[doc/pscet_status.txt toolbin/pscet_status.pl]

2006-12-01T00:16:33.505703Z Ralph Giles

Move pscet files out of the way to make room for versions with history.

[doc/pscet_status.txt toolbin/pscet_status.pl]

2006-11-30T22:52:33.785536Z Henry Stiles

fixes and analysis from Peter.

[doc/pscet_status.txt]

2006-11-30T21:01:19.024704Z L. Peter Deutsch

Fixes a bug that could cause a SEGV when reading binary token arrays on
systems where sizeof(ref) > 8 (e.g. 64-bit systems).

[src/iscanbin.c]

2006-11-30T20:41:53.369215Z Henry Stiles

Move the cet bug list and the script for tallying bug statistics from
the pscet_status.txt file to the public release.  Also includes a
couple of reassignments and fixes from Peter.  See the diffs for
details.

[doc/pscet_status.txt toolbin/pscet_status.pl]

2006-11-30T17:30:17.006076Z L. Peter Deutsch

Fixes bug: setcolorrendering returned CRD names as strings rather than names.

[lib/gs_lev2.ps]

2006-11-30T17:11:55.853083Z L. Peter Deutsch

Fixes bug: In case of an error, setvmreclaim and setvmthreshold reported an
error in setuserparams rather than the correct operator.

[lib/gs_lev2.ps]

2006-11-30T07:48:31.178531Z L. Peter Deutsch

Fixes bug: printobject and writeobject didn't signal an /undefined error if
currentobjectformat was 0.

[lib/gs_btokn.ps]

2006-11-30T05:38:43.886406Z Raph Levien

Match arbitrary-seeming CPSI behavior (when CPSImode is set) regarding
incorrect ucache placement causing typechecks with some but not all
upath operations. Fixes 11-28-5 and improves 11-22-3.

[src/zupath.c]

2006-11-29T01:33:19.060235Z leonardo

Fix (pdfwrite) : Don't write min_int as XHeight.

DETAILS :

Bug 689009 "Ghostscript generated pdf/a file has an XHeight of -2147483648". 

The old code doesn't check whether XHeight is successfully computed for the font.
However some font subsets simply have no characters for its computation.
In this case the old algorithm writes min_int, which works
for internal needs of the algorithm. We believe that using zero
instead min_int is safe because fonts usually place characters over the base line.
If all chars appear below the base line, the zero value 
won't be written due to the logics for default values in 
write_FontDescriptor_common.

Thanks to Marcos for the perfect bug localization.

[src/gdevpdtd.c]

2006-11-28T00:46:03.167492Z Raph Levien

Silently accept incorrect ucache placement in CPSI compatibility mode.
Fixes CET 11-23-3 and (partly) 11-24-3 and 11-25-3.

[src/zupath.c]

2006-11-27T23:56:22.186441Z Raph Levien

Reverses order of subpaths in gx_path_copy_reversed, which is the
implementation of the reversepath operator. PLRM3 says that the order
of subpaths is unspecified, but CPSI reverses them, while old GS had
them in the same order as the original path. Fixes CET 11-05-6, 11-14-5,
11-22-7, and 11-28-11.

[src/gxpath2.c]

2006-11-27T23:21:36.941749Z leonardo

Fix (pdfwrite) : A wrong font substitution for glyph variations.

DETAILS :

Bug 688967 "Problem with converting PS file with barcode font to PDF".

The old code doesn't check for possible encoding conflict
when sharing a charproc from another font. The current font could already
have another charcproc for same char code.

[src/gdevpdti.c]

2006-11-26T05:51:17.751153Z Ray Johnston

Fixes for CET's. Halftone dummy lpi and angle are real for Adobe. Also
setdash must return typecheck for wrong type top operand even if there
is no second operand (09-36-3).

[lib/gs_init.ps]

2006-11-24T21:53:27.264413Z Ray Johnston

Return 'undefinedresult' rather than 'rangecheck' for MININT / -1 to match
Adobe CPSI and Tek on CET 25-09

[src/zarith.c]

2006-11-24T21:18:42.311047Z Ray Johnston

Fix typo in previous commit (commit from a non-working directory after testing on
another system).

[src/zarith.c]

2006-11-24T21:13:30.086309Z Ray Johnston

Check for rangecheck condition BEFORE doing the divide. Prevent FP exception
on MSVC-6/x86. Fixes problem causing CET 25-09.ps to abort.

[src/zarith.c]

2006-11-23T19:01:20.626083Z leonardo

Fix : Skip images outside the clipping path.

DETAILS :

Bug 689000 "Ghostscript generates very large PDF file compared to Distiller".


1. New functions gx_cpath_rect_visible, is_image_visible
   check whether the image is entirely clipped out.

2. A new flag gx_image_enum_common_s::skipping stores that fact.

3. If so happens, interpreter checks whether the image
   has string datasources only. Such images may be safely skipped 
   from the interpretation (zimage.c).

Note : This optimization works for ImageType 1 only - see comment 
in is_image_visible. Unfortunately We have no time to improve this now. 
Need to analyze why does gs_image2_t need a floating size of the source image.

[src/gsimage.c src/lib.mak src/zimage.c src/gxiparam.h src/gxcpath.c src/gxpath.h src/gximage.c]

2006-11-23T15:01:16.838484Z Alex Cherepanov

Trap errors from setpattern implementation and re-throw them as
setpattern errors. Fix CET 09-47c-01.

[lib/gs_lev2.ps]

2006-11-23T14:14:38.062916Z Alex Cherepanov

Throw rangecheck when nocurrentpoint is detected during a user path
appending to the current path. This improves error reports from
CET 11-22, 11-24, 11-25, 11-27, 11-28.

DETAILS:
With this fix committed Ghostscript matches Distiller 5 but CPSI and Tek
ignore most of the errors in user path.

[src/zupath.c]

2006-11-22T20:22:57.190253Z Ray Johnston

Read the JBIG2 Global Context from the stream as an array of strings to
create the correct size bytestring for .jbig2makeglobalctx. Bug 689005
for customer 870.

DETAILS:

The /Length element of the the stream dict is the uncomressed size.
This example used FlateDecode on the Global context (which is sort of
dumb because except for the headers, most of the symbol dict is already
compressed -- in this case it saved a whole 36 bytes = 0.2%).

Tested with a smaller string (2000 instead of 60000) since the test
file only needed 18654 bytes.

[lib/pdf_base.ps]

2006-11-22T19:56:29.243165Z leonardo

Fix (shadings) : Radial shadings sometimes missed Extend.

DETAILS :

Debugged with CET 09-47I.PS SpecialTestH08Test06.

The old code wrongly computed parameter range for the extent,
when there exist 2 tangenting circles. 
In this case the visible part of the extent prolongues to the farest circle.
The old code restricts the extent with the nearest circle.

[src/gxshade1.c]

2006-11-22T02:03:00.217845Z Ray Johnston

Fix 09-33-5 -- return the screen procedure as an array instead of packedarray.

[lib/gs_dps2.ps]

2006-11-22T01:26:37.628128Z Ray Johnston

Fix for 09-29-1 -- force result from BG, UCR procs to always be a real.

[lib/gs_devcs.ps]

2006-11-21T21:16:21.705841Z Ray Johnston

Fix stackunderflow on 09-13.ps caused by mistake in rev 7124.

DETAILS:

Detected as a regression on the PS CET files.

[lib/gs_cspace.ps]

2006-11-21T20:21:34.907928Z Ray Johnston

Fix for ILLEGAL (\000) (r) file case seen with 23-09.ps

[src/sfxstdio.c]

2006-11-19T14:36:42.834356Z leonardo

Fix (filling) : Very long lines sometimes painted in a wrong direction.

DETAILS :

Debugged with CET 11-14.PS : (next 3E9 dup moveto 1 dup lto fini) .

A fixed overflow happened in gxstroke.c .
To work around it we subdivide long segments into 2 parts
before applying the stroking algorithm.

1. The hew function gx_path_has_long_segments checks for long segments.
2. The function gx_path_copy_reducing now breaks long segments into 2 parts. 
3. gxstroke.c is changed to apply (1) and (2).
4. Note that (2) also affects the filling algorithm, 
   rather it is not related to the test case.
   It had problems with long segments also,
   at least gx_default_fill_trapezoid must not be called with 
   very long setgments, because it computes coordinate differences.

[src/gxpath.h src/gzpath.h src/gxpflat.c src/gxstroke.c src/gxpcopy.c]

2006-11-18T21:44:30.894785Z leonardo

Fix (filling) : Very long lines were missed sometimes.

DETAILS :

1. The flattening iterator subdivided very long lines into 2 segments
   against a fixed overflow. It appears not sufficient due to an
   unrelated code optimization. The new code does in 4 segments (gxpflat.c).
   See comments in code.

2. When finding a path's Y-minimum, the old code didn't account that
   most parts of a segment may fall outside Y-band (gxfill.c).

Debugged with CET 11-11.PS : (next 10 10 moveto 3E9 3E9 lineto fini) .

[src/gxfill.c src/gxpflat.c]

2006-11-18T01:50:21.560089Z leonardo

Fix (shadings) : Align coordinate data and color data to byte boundary.

DETAILS :

Debugged with CET 09-47K.PS SpecialTestJ02Test05 and
09-47K.PS SpecialTestJ02Test05 
The old code didn't align to byte boundary.
PLRM requires to align "each vertex data" to byte boundary.

Howebver PLRM doesn't clearly explains, what does "each vertex data" mean.
We make GS to be compatible to CPSI with CET tests.
From these tests we know that it wants to align color data when there is no flag,
and to align the flag only, when it presents. Actually we also align
whenever a vertex ends, because it looks reasonable.

We didn't find practical tests for all cases allowed by PLRM,
so this logick may need a further improvement.

[src/gxshade.c src/gxshade4.c src/gxshade.h src/gxshade6.c]

2006-11-17T23:58:38.951291Z leonardo

Fix (shadings) : Restrict shading function data with the shading function Domain.

DETAILS :

1. Restricts the function argument data (CET 09-47M.PS, SpecialTestL04Test04);
   CPSI appears to restrict shading function data with no warning.
   The old code throws a rangecheck.

2. Restricts color data with the color space Domain for triangle mesh shadings.
   The old code did not. Changing it to work same as for patch shadings.

[src/gxshade.c src/gxshade4.c]

2006-11-17T05:28:16.982839Z Alex Cherepanov

Validate the argument of setcolorspace before trying to process it.
Catch errors from setcolorspace and re-throw them from shfill.
Fix CET 12-14d.

[lib/gs_ll3.ps lib/gs_cspace.ps]

2006-11-16T16:45:12.812952Z Alex Cherepanov

Return a read-only dictionary from currenthalftone.
Partial fix for CET 09-12-01.

[lib/gs_dps2.ps]

2006-11-16T15:33:00.738256Z Alex Cherepanov

Pass the arrays with correct attributes to setdash and setcolortransfer
in gs_cet.ps to match Tek printer. Fix CET 09-07, 09-08, 09-22.

[lib/gs_cet.ps]

2006-11-16T11:12:36.928665Z leonardo

Fix (functions) : Provide a tolerance for insuffitient Domain elements 
(CPSI compatibility mode only).

DETAILS :

This change has no effect without "true .setCPSImode".
When it is executed, the missed Domain elements are padded with zeros,
extra elements are silently ignored.
Patch from Alex inproved by Leo.

[src/zfunc3.c]

2006-11-16T10:38:44.129650Z leonardo

Fix : A minor bug in the visual trace code.

[src/vdtrace.c]

2006-11-15T23:59:58.494757Z Ray Johnston

Remove deprecated cs_get_default_color (an editting mistake).
Thanks to Dan Coby for spotting this.

[lib/gs_ciecs3.ps]

2006-11-15T16:17:19.366589Z Ray Johnston

Return 60.0 0.0 as Adobe dummy values with Halftone dict (real not int)
Fixes 09-05-6

[lib/gs_dps2.ps]

2006-11-15T16:15:30.494892Z Ray Johnston

Set the correct default value for CIEBasedDEF and CIEBasedDEFG colorspaces.
PLRM p. 233 states value is to be as close to 0.0 as is valid in RangeDEF[G].
Fixes 09-03-3

[lib/gs_ciecs3.ps lib/gs_cspace.ps]

2006-11-15T16:12:42.807313Z Ray Johnston

Return real instead of int from tint transform as Adobe does. Fixes 09-02-2

[lib/gs_sepr.ps]

2006-11-14T10:08:04.014362Z leonardo

Fix (shadings) : A non-contiguous color function could cause infinite recursion,

DETAILS :

It didn't check the quadrangle size when dividing it by a big color difference.

[src/gxshade6.c]

2006-11-13T21:12:10.733371Z leonardo

Fix (shadings) : Don't fill ShadingType 1 when the region is outside the function domain.

DETAILS :

Debugged with 09-47G-1.PS SpecialTestF02Test01 .
The old code returned rangecheck when it must not paint anything except Background.
It happened due to an attempt to check the function monotonity outside its domain.

[src/gxshade1.c]

2006-11-13T19:05:22.830209Z Ray Johnston

Prevent 'repeat' extension from sneaking into FunctionType 4 of PDF's we
create.

DETAILS:

When the device is 'pdfwrite' we don't allow the 'repeat' control operator
in FunctionType 4 functions. The 'check_psc_function' will return a
rangecheck error if this is attempted. We don't need to worry about other
devices such as ps2write since it doesn't emit DeviceN tint transforms
(the only way we can currently get the 'repeat' operator into a PSC
function). To prevent indexing past the end of op_names in calc_put_ops,
we throw a rangecheck if one ever sneaks in.

Note that in theory, since we the opdfread uses the full PS interpreter
to process FunctionType 4, we *could* handle 'repeat', but the calc_put_ops
will prevent that (for now).

Note that this means that attempting to convert 09-31.ps or 09-34.ps into
PDF will not succeed in generating the FunctionType 4, and will throw a
rangecheck in the tint transform when trying to generate a sampled function
that is too large. All other devices, including ps2write, will show the
correct result since the FunctionType 4 tint transform is interpreted in
Ghostscript (which handles its own 'repeat' extension).

[src/gsfunc4.c src/zfunc4.c]

2006-11-13T17:05:42.548481Z leonardo

Fix (shadings) : Remove colors from C stack, part 10.

DETAILS :

The patch
http://ghostscript.com/pipermail/gs-cvs/2006-November/006955.html
appears wrong in the part 1.
This patch fixes that.

[src/gxshade6.c]

2006-11-13T16:38:14.371701Z leonardo

Fix (shadings) : Remove colors from C stack, part 9.

DETAILS :

Removing unuseful comments.

[src/gxshade6.c]

2006-11-13T16:32:10.419581Z leonardo

Fix : Cygwin/gcc warnings.

DETAILS :

Missed a function prototype.

[src/int.mak src/zfile1.c]

2006-11-13T16:22:51.306913Z leonardo

Fix (shadings) : Remove colors from C stack, part 8.

DETAILS :

Fixing Cygwin/gcc warnings.

[src/gxshade6.c]

2006-11-13T16:10:41.692230Z leonardo

Fix (shadings) : Remove colors from C stack, part 7.

DETAILS :

This is the 7th step of fixing the bug 688955 
"64K stack overflows with shadings".
This change is algorithmically equivalent.
We hope this is the last step, which closes the bug.

1. Optimize reserve_colors_inline;
2. Remove 'assert'.
3. Disable the consistency check in release_colors_inline for faster sesult and smaller code.
4. Provide a consistency check at end of a shading fill in term_patch_fill_state.

[src/gxshade4.h src/gxshade1.c src/gxshade4.c src/gxshade6.c]

2006-11-13T15:34:00.738868Z leonardo

Fix (shadings) : Remove colors from C stack, part 6.

DETAILS :

This is the 6th step of fixing the bug 688955 
"64K stack overflows with shadings".
This change is algorithmically equivalent.

1. Remove the color_stack_ptr0 argument from various functions.
2. Rename the color_stack_ptr1 variable into color_stack_ptr.

[src/gxshade4.h src/gxshade1.c src/gxshade4.c src/gxshade6.c]

2006-11-13T14:42:19.588343Z leonardo

Fix (shadings) : Remove colors from C stack.

DETAILS :

This is the 5th step of fixing the bug 688955 
"64K stack overflows with shadings".

Cigwin/gcc yields warning for the last patch,
some of which may be harmful.

[src/gxshade6.c]

2006-11-13T14:32:07.933998Z leonardo

Fix (shadings) : Remove colors from C stack.

DETAILS :

This is the 4th step of fixing the bug 688955 
"64K stack overflows with shadings".
This change is algorithmically equivalent.

Providing a color stack pointer field in the shading fill state structure.
When some colors are reserved, we advance the color stack pointer.
A new function release_colors work for releasing them.

This patch inserts some asserts, which to be removed soon.

[src/gxshade4.h src/gxshade1.c src/gxshade4.c src/gxshade6.c]

2006-11-13T11:18:36.886321Z leonardo

Fix (shadings) : Remove colors from C stack.

DETAILS :

This is the 3nd step of fixing the bug 688955 
"64K stack overflows with shadings".
This change is algorithmically equivalent.

1. New functions reserve_colors_inline, reserve_colors work with
   the color stack in heap. 

2. Currently the color stack pointer is saved at each
   recursion level for simplifying the debugging.
   We intend t move it later to the shading fill state structure.
   Currently it is passed via most function calls as a new argument.

3. In automatic data the colors change type
   from a structure to pointer.

4. Since we want to keep colors be constant while 
   the heavy decompositioin recursion, we made
   the local color pointers point to const data.
   Therefore a new argument is added to some functions,
   which construct colors and therefore need
   a non-conmst access. Thise changes are commented with
   "providing a non-const access".

5. Minor change : cs_is_linear changes the 1st argument type to 'const'
   (gscspace.c, gxcspace.h).

[src/gxshade4.h src/gxcspace.h src/gxshade.c src/gxshade1.c src/gxshade4.c src/gscspace.c src/gxshade.h src/gxshade6.c]

2006-11-13T11:04:18.319919Z leonardo

Fix (shadings) : A better average color when filling a triangle.

DETAILS :

Due to a misprint, the old code wrongly computed the average color 
from 3 colors of triangle vertices.

Minor change : pfs->color_stack_limit is int rather than a pointer,
so NULLL isn't a good initilizer.

[src/gxshade6.c]

2006-11-12T22:18:04.834342Z Ray Johnston

Add 'repeat' as an pseudo-operator for FunctionType 4. Needed for PS CET
09-31 and 09-34 that use it in the tint transform for DeviceN with 110 and
250 components.

DETAILS:

Since Type 4 functions are a PDF feature, extending the control operators
to include 'repeat' doesn't create any PS incompatibility.

[src/gsfunc4.h src/gsfunc4.c src/opextern.h src/zfunc4.c src/zcontrol.c]

2006-11-10T12:18:42.454752Z Alex Cherepanov

Return floating point values for some cases of currentgray, currentrgb, and
currentcmyk operator that are implemented in PostScript.
Fix CET 09-10.ps, 09-19.ps.

[lib/gs_patrn.ps lib/gs_cspace.ps]

2006-11-09T20:05:09.172995Z leonardo

Fix : Cygwin/gcc warnings

[src/gxccman.c src/gdevbit.c src/devs.mak]

2006-11-09T19:25:53.845531Z leonardo

Fix : Provide a single color stack for entire shading.

DETAILS :

This is the 2nd step of the preparation for fixing 
the bug 688955 "64K stack overflows with shadings".
This change is algorithmically equivalent.

1. Ading fields into patch_fill_state_t for representing a color stack in heap.

2. Initialize and finalize them in gxshade6.c . 
   Currently they work idle.

3. Provide a single patch_fill_state_t instance for all
   meshes/patches of a shgading (gxshade1.c). 
   It allows to handle a single color stack 
   for all meshes/patches of a shading.

3. Document the shortened color representation in gxshade4.h .

Most subclasses of shading_fill_state_common are now rudiments,
but we keep them for a while to minimize the patch.
Note A_fill_state_s is not longer a subclass of it.

[src/gxshade4.h src/gxshade1.c src/gxshade4.c src/gxshade6.c]

2006-11-09T02:28:13.502287Z Alex Cherepanov

Trap errors from findfont, etc. and re-throw them as selectfont errors.
Partial fix fot CET 13-16.ps

[lib/gs_dps1.ps]

2006-11-09T01:54:18.338382Z Alex Cherepanov

Change the order of argument checking in kshow operator.
Partial fix fot CET 13-12.ps

[src/zchar.c]

2006-11-09T01:11:30.297156Z Alex Cherepanov

Following Adobe example accept 1-component multiple data sources in imahemask.
Match CET 12-08b.ps

[src/zimage.c]

2006-11-08T20:01:48.930089Z Ray Johnston

A couple of minor additions to match CPSI. Mostly just to show customers
that these are device specific values they may want to set themselves.

[lib/gs_cet.ps]

2006-11-08T17:59:48.588441Z leonardo

Fix (shadings) : Improving radial gradients.

DETAILS :

The old code has a bug when painting an extent for an obtuse cone.
Then filling the wider extent, it also painted the extent near the apex.
It happened due to a trick with representing the view of the constant color cone
with triangles. This problem is visible with 09-47I.PS page 7 Test11.

Another problem relates to the representation of circles with
2d order besiers. The old code did not account the approximation error of
the representation, causing a "stair" between the extent and the cone.
The stair may be visible when painting a big cone with a sloped tangent.

These two problems were introduced with Revision 2524 
on Apr 18 08:12:56 2002 UTC by jeong. When the "new" shading
algorithm was implemented 2+ years ago,
they were not noticed and has been ported to the "new" algorithm.

This patch paints the extent as a regular annulus
concatenated with a circle, which "closes" the wider extent.
The circle is taken so that its tangent points fall outside 
the view rectangle. The "closing" circle is necessary because the
annulus may be thinner than the view rectangle.

[src/gxshade1.c]

2006-11-08T16:13:35.888122Z Alex Cherepanov

Make UniqueID error reporting match Adobe's. Partial fix for 13-05.PS.

[src/idparam.c]

2006-11-08T13:36:18.319314Z leonardo

Fix : Rearrange gs_client_color_s to allow saving RAM from color components.

DETAILS :

This is a preparation for fixing the bug 688955 "64K stack overflows with shadings".
See comments in cope.

[src/gsccolor.h]

2006-11-08T12:55:36.512197Z Alex Cherepanov

Set errorinfo for Background key in shading dictionary. Clear some
issurs detected by CET 09-47G.PS and 09-47H.PS.

[src/zshade.c]

2006-11-08T12:30:45.541199Z leonardo

Fix (shadings) : Improving radial gradients.

DETAILS :

1. Extend was missed sumetimes due to a wrong formula in R_outer_circle.
2. Must paint nothing when both radii are zero.

[src/gxshade1.c]

2006-11-07T23:30:31.983202Z Ralph Giles

Prepend $(DESTDIR) to unix 'make install' paths for the convenience of 
packagers. This assumes make will substitute an empty string for 
undefined makefile variable, but this is a widespread convention.
Bug 688948.

[src/unixinst.mak]

2006-11-07T19:49:18.274457Z Ralph Giles

Remove the deprecated ps2write.bat, which does not work. ps2ps2.bat is 
the correct script to invoke. Bug 688977.

[lib/ps2write.bat]

2006-11-07T18:52:46.763208Z Ray Johnston

Turn on CPSI mode for CET runs. This mode uses the CPSI cmyk_to_rgb
conversion and 'eofill' for Type1 characters.s

DETAILS:

This improves the difference count for 250 pages and only increases
the difference count for 6 pages. I've reviewed all regressions and
the changes are not important. Of the 250 pages that are improved,
The 250 improvements will be analyzed and those that were DIFF or
AOK will be changed to OK if they now match closely enough.

[lib/gs_cet.ps]

2006-11-07T15:55:45.038514Z Alex Cherepanov

Use standard vector product formula to decide whether the 2 tangent lines
in arct operator are collinear. Fix CET 11-03.

[src/gspath1.c]

2006-11-07T12:52:11.415127Z leonardo

Fix (gs_cet.ps) : Patch 'setsmoothing' for a better view of shadings in CET tests (continued).

DETAILS :

Fixing a misprint in the last patch.

[lib/gs_cet.ps]

2006-11-07T12:46:34.330897Z leonardo

Fix (gs_cet.ps) : Patch 'setsmoothing' for a better view of shadings in CET tests.

DETAILS :

CET tests execute "1 setsmoothing", which allows a 100% color error
while a shading rasterization. We patch 'setsmoothing' to make
the shadings be painted with the default smoothing.
It appears closer to what CPSI does.

[lib/gs_cet.ps]

2006-11-07T03:50:09.475944Z Alex Cherepanov

Adjust error reporting from sethalftone to match CET 09-40.
Fix an error in sethalftone redefinition. Halftone can read from
the current file; sethalftone cannot be redefined as { pop } .

[lib/gs_dps2.ps lib/gs_ll3.ps]

2006-11-07T01:13:42.489161Z Alex Cherepanov

Fix CET 09-32:
Adjust error reporting from setcolorrendering to match the test.
Make TransformPQR a required parameter, as specified by the PLRM.

[lib/gs_lev2.ps src/zcrd.c src/zcie.c]

2006-11-06T18:58:56.541927Z leonardo

Fix (shadings) : The monotonoty check for Stitching function was wrong.

DETAILS :

It partially fixes 09-47D.PS and other tests.

1. The function itself didn't set the non-monotonic dimension mask.
2. The shading code erroneusely exchanged dimensions when checking the color monotonoty.

[src/gsfunc3.c src/gxshade6.c]

2006-11-06T12:33:12.321244Z Alex Cherepanov

Partialy fix CET 13-05:
- Trap errors in definefont procedure and re-throw them as definefont errors.
- Throw "invalidaccess in definefont" error for the no-access font dictionary
  instead of invalidfont that happens without the check. 
- Silently ignore invalid /FID attribute.

[lib/gs_fonts.ps lib/gs_res.ps src/zbfont.c]

2006-11-05T04:14:18.656525Z Alex Cherepanov

Adjust error reporting from findfont procedure to match Distiller and CET
13-06.PS.tek360 . The PhotoPrint product is clearly wrong here leaving
a few objects on the stack besides the arguments when findfont fails.

[lib/gs_res.ps]

2006-11-05T03:00:15.616716Z Alex Cherepanov

Adjust error reporting from findencoding procedure to match Adobe.
Make "null ... findresource" throw /typecheck instead of /undefinedresource .
Fix CET 13-06.PS

[lib/gs_res.ps]

2006-11-04T17:05:22.998270Z Alex Cherepanov

Change attributes of the array form of the device color spaces.
Fix a bug in HSB to RGB conversion introduced in rev. 7124.
Simplify equality testing of color spaces: names match corresponding
array forms, all other match when color space arrays are equal.
Accept float value as a color value for an indexed color space.
Fixes CET 09-06.PS and many other test cases.

[lib/gs_indxd.ps lib/gs_cspace.ps]

2006-11-04T15:23:19.316020Z Alex Cherepanov

Fix error reporting for setdevparams operator, CET 27-08.

[lib/gs_lev2.ps src/ziodev2.c]

2006-11-04T14:11:05.665517Z Alex Cherepanov

Accept negative value for MinFontCompress user parameter and silently
substitute with 0. Intercept setuserparams errors and re-throw them as
setcacheparams errors. Partial fix for CET 27-07.ps.

[lib/gs_lev2.ps src/gsfont.c src/zusparam.c]

2006-11-04T05:59:16.045180Z Ray Johnston

Increase the number of DeviceN components we can handle to at least
250 (which is needed by CET 09-03, 09-06, ...). Both GS_CLIENT_COLOR_MAX_COMPONENTS
and MAX_VSTACK depth are needed since we use Type 4 functions to handle DeviceN colors.

[src/gsccolor.h src/gsfunc4.c]

2006-11-04T05:51:14.333525Z Ray Johnston

Make the Device color spaces arrays instead of packedarrays for Adobe
compatibility. CET 09-03, 09-06 and others.

[lib/gs_cspace.ps]

2006-11-04T04:02:22.614110Z Alex Cherepanov

Accept negative argument for setcachelimit operator and silently substitute
with 0. Intercept setuserparams errors and re-throw them as setcachelimit
errors. Fix CET 27-06.ps.

[lib/gs_lev2.ps src/gsfont.c src/zusparam.c]

2006-11-03T20:47:10.212392Z Raph Levien

Fix: Change /.OrigFont key to /OrigFont to match (undocumented) Adobe
behavior. Fixes CET 15-04-1 et al and 16-08-1. Note: test file
Bug687615.ps depends on old undocumented behavior, but has been patched
in the comparefiles repository.

[lib/gs_fonts.ps src/gdevpdtt.c src/zbfont.c]

2006-11-03T20:43:13.567715Z Raph Levien

Fix: Fixes clipsave/cliprestore nested with gsave operations. Correct
behavior is to save clipstack into saved gstate, and clear the clipstack
in the current graphics state, as clarified in PLRM3. Fixes 450-01.ps and
CET 09-54-2 et al, and 11-06-2.

[src/gsstate.c]

2006-11-03T19:20:58.328736Z Alex Cherepanov

Make arcto and arct operators throw undefinedresult when the start point
or the end point is the same as the center making calculation of the
tangent impossible. Fix CET 11-04.ps.

[src/gspath1.c]

2006-11-03T06:28:15.169508Z Ray Johnston

Fix some typo's editting blunders. No code change.

[src/gsmisc.c src/zmisc.c]

2006-11-03T05:45:05.987701Z Ray Johnston

Implement dynamic configuration of previous compile options that are needed
for CPSI compatibility running the PS CET.

DETAILS:

While a 'state' variable to control this is preferred to a global, the
gs_device or gs_imager_state is not propagated through all of the color
functions. For example, the place where USE_ADOBE_CMYK_RGB was used with
#if to select the color, even though there was a 'pis', it was called
with NULL at times. Default will remain the same as the current gs.

The other option controlled with .setCPSImode is the Type 1 fill method.
While eofill is the Adobe spec method needed for CPSI compatibility, 
the w.n. 'fill' method is needed for some Type1's created from TT fonts
that don't properly handle inadvertent crossings (and other bad fonts).

The "true .setCPSImode" will be added to the lib/gs_cet.ps to improve
CET CPSI compatibility.

PCL is not affected since it does not have CMYK colors and doesn't handle
Type1 fonts.

[src/gsmisc.c src/zmisc.c src/zchar1.c src/gxdcconv.c]

2006-11-02T19:42:47.894000Z leonardo

Fix (imagemask) : An optimization for imagemask with a shading color, continued 2.

DETAILS :

Cygwin/gcc warnings in the last patch.

[src/lib.mak src/gspcolor.h src/gximask.c]

2006-11-02T19:19:23.740183Z leonardo

Fix (imagemask) : An optimization for imagemask with a shading color, continued.

DETAILS :

This is a performance fix for 09-47D-3 .
It is a similar optimization as a recent one for imagemask, 
rather this one applies to different cases, which are not directly related to 
to Postscript operator imagemask. The cases are :
- filling a cached character with a shading color;
- filling a FAPI character with a shading color;
- rendering an imagemask while a clist playback (for future. 
  currently never happens with shadings).

This patch adds new modules gximask.c and gximask.h,
which factor out the common code for the mentioned cases.
The code is taken from the last patch for imagemask,
with minor restructurization.

The new function gx_image_fill_masked must be called
from the graphics librari instead a direct call
to the device virtual method fill_mask. 
It checks for the shading color and inserts the clipping device,
which represents the mask. 

Note that the clipping device always decompose a shading color,
so inserting the clipping device before it won't cause a problem.
However it needs some care when rendering to a high level device.

The clip accumulator device had no fill_mask virtual method.
This patch adds the default implementation 
for the proper work of gx_image_fill_masked.

[src/gsimage.c src/lib.mak src/gxacpath.c src/int.mak src/gximask.c src/gxccache.c src/gzcpath.h src/gxclrast.c src/gximask.h src/zfapi.c]

2006-11-01T21:18:41.176742Z leonardo

Fix : When filling a path with a shading, the filling rule was missed. 

DETAILS :

1. Unwing the rev 7114 patch due to a significant slowdown
   for filling a path with a shading (gxfill.c).

2. A minor change to gxfill.c : removed a redundant assignment to fo.lop .

3. The old code always used the non-zero winding rule,
   because gx_cpath_to_path misses the winding rule
   when called from gx_default_fill_path.
   See commet in code.
   This is the real fix for the problem.

4. pcpath->rule sometimes was not initialized when pcpath->path_valid is true (gxcpath.c)

We don't like that gx_default_fill_path creates a big clipping path,
which then converts into a path, which then is being intersected 
with a rectangle and/or parallelogram(the shading BBox) in gs_shading_fill_path.
The biggest time expence in this chain is the sorting a lot of 
rectangles when gx_cpath_intersect_path_slow applies the filling
algorithm to compute the intersection. In many cases the 
the rectangle is simply the bounding box of the path,
but it still needs the clipping path planarization, because 
the "planarized" property isn't stored in the path structure.

We tried to optimize against it, but didn't succeed with no raster differences.
Delaying that optimization for better times.
Due to a short time frame we need to make this patch smaller and simpler.

[src/gxcpath.c src/gxfill.c]

2006-11-01T19:58:48.174934Z Ray Johnston

Add prototypes for _ftelli64 and _fseeki64 for MSVC 6 builds. Allows
> 2Gb clist when building with MSVC 6. Bug 688394 for customer 330.

DETAILS:

Even though the functions are in the run time library (at least with
service pack 6), they aren't documented and aren't in the include
files. Without the prototypes, the functions are presumed to return
and 'int' so the sign gets extended for offsets > 0x7ffffff.

Tested with customer's file at 180dpi where the clist size gets up
to 2.7Gb.

[src/gp_mswin.c]

2006-11-01T04:31:35.972287Z Henry Stiles

This file should have been included in the previous checkin.  gs is
now an external repository and changes have to be checked in
explicitly.

[src/gdevpxop.h]

2006-11-01T01:05:01.781266Z Alex Cherepanov

Change order of operand checking in setfileposition to match CET 23-28.ps

[src/zfileio.c]

2006-11-01T00:44:39.318388Z Alex Cherepanov

Make resourcestatus throw typecheck when resource category is not a name.
Partial fix for CET 23-26.ps, page 4.

[lib/gs_res.ps]

2006-10-31T23:21:22.115009Z Alex Cherepanov

Change the order of argument checking in renamefile operator and the error
code returned for renaming bare devices such as (%stdin) to match CET 23-23.ps

[src/gsfname.c src/zfile.c]

2006-10-31T21:30:03.431760Z Alex Cherepanov

Change the order of argument testing in readline operator to match CET 23-22.ps

[src/zfileio.c]

2006-10-31T21:00:30.566372Z L. Peter Deutsch

Fixes a bug: 'bind' would affect non-writable ordinary arrays, rather than
doing nothing per the PLRM.  ('bind' still affects packed arrays, per the
PLRM.)  Fixes a discrepancy in PS3 CET 31-01-2.

[src/zmisc.c]

2006-10-31T20:58:38.108340Z L. Peter Deutsch

Fixes a bug that caused certain 1-operand math operators to return typecheck
rather than stackunderflow if the stack was empty.  Fixes a discrepancy in
PS3 CET 25-05-1.

[src/iutil.c]

2006-10-31T17:36:29.458383Z Alex Cherepanov

Change the order of argument checking for readstring operator to satisfy CET
23-21.ps . In general, CET prefers other errors over stack underflow when
there is a choice. Ghostscript was originally designed to do the opposite.

[src/zfileio.c]

2006-10-31T04:29:18.220326Z L. Peter Deutsch

Makes 0 0 exp return 1.0 rather than signalling undefinedresult, to match
Adobe interpreters.  Fixes a discrepancy in PS3 CET 25-07-1.

[src/zmath.c]

2006-10-30T22:20:55.924215Z Alex Cherepanov

Fully check an setcolor operand before trying to access a new one to match
CET 09-30 and 09-48 error reporting. Down, not across.

[lib/gs_cspace.ps]

2006-10-30T21:57:56.999671Z Ray Johnston

Tolerate some missing keys in a CMap (previously we only allowed for missing
CMapName). Missing /CodeMap and /CIDSystemInfo now tolerated for PS CET 23-25
and others.

DETAILS:

Note a CMap with missing CodeMap can't really be used. It is just accepted
for CPSI compatibility.

[lib/gs_cmap.ps]

2006-10-30T21:53:44.580966Z Ray Johnston

Remove Localization Resource since CPSI doesn't define this. PS CET 23-25
and others.

[lib/gs_cet.ps]

2006-10-30T21:47:51.298314Z leonardo

Fix : Don't replace FDArray for a built CIDFontType 0.

DETAILS :

Debugged with 32_all.PS .

The old code didn't check whether a CIDFontType 0 is being built
at second time and erroneusely replaced FDArray in it.
It causes FDArray to be prematurely released with "restore"
when the font is not, causing a heap inconsistency.

This quick fix avoids the FDArray replacement.
However it leaves some work for the garbager.
A better fix should perform a better cleanup -
see comment in code. Delaying it for better times.

[src/zfcid0.c]

2006-10-30T18:20:09.692598Z Alex Cherepanov

Fix decoding of the indexed color space in the smooth shading.
Adjust error codes to satisfy CET 12-14a, 12-14b 12-14e, 12-14f, 12-14g
Change gs_errorinfo_put_pair() to take char* instead of byte* a
more common type and move all errorinfo-related functions to idparam.c
because they are most often used with dictionary parameter functions.

[src/zimage.c src/idparam.c src/zshade.c src/int.mak src/interp.c lib/gs_ll3.ps src/idparam.h src/gxshade.c src/interp.h]

2006-10-30T14:54:34.519781Z Stefan Kemper

Comment change.

gsargs::arg_push_string changes the parsing algorithm to parse on 
spaces.  This is a side effect of changing the depth of the arg_list.  
Currently only the postscript -c option uses this parsing scheme.
 
No Differences.

[src/gsargs.h]

2006-10-27T11:49:01.166620Z leonardo

Fix : MSVC warning.

DETAILS :

char** --> char*
Don't know how it compiles with various compilers.
In any case it was definitely wrong.

[src/gsiorom.c]

2006-10-27T00:04:16.218261Z Alex Cherepanov

Don't modify the destination string of cvs and cvrs operators on
failure. Change the returned error codes to suit the CET tests
24-05.PS and 24-06.PS .

DETAILS:
Adobe enterpreters have a bug when "1234556789 10 ( ) cvrs"
restores the stack as "123456789 ( ) ( )" Ghostscript doesn't have
this bug, which is affects 24-05.PS checksums.

[src/zfileio.c src/iutil.c src/iutil.h src/ztype.c]

2006-10-26T23:10:05.159422Z Raph Levien

Fix: make out-of-bounds string DataSource reads return 0 bytes, rather 
than UMR. Spec calls for /rangecheck, but CPSI silently returns garbage. 
Improves 09-47B page 12 (focus on test 6), but exact match to CPSI is
probably not feasible.

[src/gsdsrc.c]

2006-10-26T22:14:01.743778Z leonardo

Fix (TT font reader) : Obtain Unicode codes from Encoding glyph names of a special format.

DETAILS :

Bug 688946 "Problem reading PDF file with Arabic font".

We think we observe an undocumented Adobe feature.
This patch has no strong theoretic foundation.
It is created empirically.

An embedded True Type font has no some glyph names in its 'post' table,
but they present in Encoding Differences. 
The glyph names look as uniXXXX where XXXX is 4 hexadecimal digits.
The corresponding character codes can't be translated into
glyph indices neither with AdobeGlyphList, nor with 'post',
nor by the identity or another simple mapping to Unicode.

We conclude that Adobe recognizes such names and
obtains Unicode codes from them, and then translates
them with 'cmap'. We think it is only possible correct method for
the supplied test case. This patch implements it.

1. Passed Encoding as prebuilt_encoding for symbolic fonts (pdf_font.ps).

2. When a symbolic font has an Unicode 'cmap',
   account glyph names from its Encoding (the change to .pdfcharkeys in gs_ttf.ps)
   while composing CharStrings.

3. Modified .addglyph with conversion of uniXXXX names into Unicode codes.

4. The new mapping is allowed only with cmap 3.1.
   Debugged with Bug688467.ps .

[lib/pdf_font.ps lib/gs_ttf.ps]

2006-10-26T08:26:31.673716Z leonardo

Fix : Specialize the build_char function argument type (continued).

DETAILS :

Removing another cast related to the last patch
(An MSVC warning).

[src/lib.mak src/gxfcopy.c]

2006-10-26T07:53:20.323680Z leonardo

Fix : Specialize the build_char function argument type.

DETAILS :

The ghostpcl project yielded a potentially harmful
warning about a type cast. It occurs a cast from 
a class to subclass. We could not provide a dynamic check in there,
so we analyzed why it needs such cast. The reason appears 
an inaccurate design in the graphics library, and we fix it now.

[src/gxchar.c src/gstext.c src/gxfcopy.c src/gxfont.h]

2006-10-26T07:07:58.608985Z leonardo

Fix : MSVC warning in the last patch.

DETAILS :

Fixed an inaccurate type cast.

[src/interp.c]

2006-10-26T05:36:39.854227Z L. Peter Deutsch

Fix: /bind load printed --.bind-- rather than --bind--. Partly fixes a
discrepancy in PS3 CET 31-01-2.

[lib/gs_ll3.ps]

2006-10-26T04:39:35.686300Z L. Peter Deutsch

Replace inexact decimal literals in the HSB<->RGB algorithms with more exact
computed values, so that (e.g.) 0.2 1 1 sethsbcolor currenthsbcolor returns
0.2 1 1.  Fixes problems in PS3 CET 09-41-4.

[lib/gs_cspace.ps]

2006-10-26T01:03:53.154097Z Raph Levien

Implementation of imagemask scaling. Fixes CET 09-24 page 3 and many 
other instances of the interpolated "turkey" bitmap. This implementation
mostly matches Adobe, but differs in one bit; further analysis of the
Adobe algorithm would be necessary to make it match 100%.

[src/lib.mak src/zfimscale.c src/simscale.c src/int.mak lib/gs_img.ps src/simscale.h]

2006-10-25T17:01:48.042147Z Alex Cherepanov

Add a routine to create and store [/key any] array in $error.errorinfo for
better conformance with Adobe PS interpreters. This routine will be called
from many places that reports errors in dictionary parameters. Use the new
routine to fix one case of error reporting in the inage operator.
Bug 688956.

[src/zimage.c src/int.mak src/interp.c src/interp.h]

2006-10-25T12:10:09.905326Z Alex Cherepanov

Normalize bounding box retrieved from PostScript BBox parameter in the
shading dictionary because Adobe interpreters accept denormalized box.
Bug 688937, customer 200.

[src/zshade.c]

2006-10-24T15:13:03.211241Z leonardo

Fix (imagemask) : An optimization for imagemask with a shading color.

DETAILS :

This is a partial performance fix for 09-47L.PS .
It fixes the biggest performance flaw,
but a further optimization is still wanted.

The patch converts the image into a clipping path and then
renders entire shading at once through the clipping path.
The old code rendered entire shading color many times for 
each rectangle of the mask.

1. The clip list accumulator device is made publicly accessible.

2. Provided a garbager descriptor for clip list accumulator device structure. 

3. When an imagemask needs to render with a shading color,
gs_image_begin_typed replaces the target device with 
the clip list accumulator device.

4. To provide a correct work of (3),
inserted a hook into gx_dc_pattern2_fill_rectangle,
which forwards the operation back to the device method.
It is done because normally that function calls
copy_mono with imagemak. Instead that, we need to accumulate 
rectangles for the clipping path.

5. Introduced a new signal pattern_manage__is_cpath_accum,
which is used to detect the clip path accumulator device
under a forwarding device. Such case happens in (4)
when it renders a cached character with a shading color.

6. gs_image_cleanup performs the main work for rendering
the shading color through the clipping path.
Note that we need to pass the device color to it,
therefore it gets a new gs_state argument.
(Well, one may think that it can be passed 
in a new field of gs_image_enum.
Actually that's not safe because an erroneus Postscript program 
can change the current graphic state and
release the old one. After that the pointer
will point to the released structure and
cause a heap inconsistency).

[src/gsimage.c src/gsptype1.c src/lib.mak src/zimage.c src/gsptype2.c src/gxcpath.c src/gxacpath.c src/gsimage.h src/gxcpath.h src/gxccache.c src/gzacpath.h src/gdevpdfi.c src/gxdevcli.h]

2006-10-24T12:22:14.551224Z Tor Andersson

A conditionally compiled mechanism to allow cached characters
to be locked out from eviction. A cached character has a reference
count, which if non-zero will prevent the cache slot to be evicted.

This is needed for the GSLite API.

[src/gxfcache.h src/gxccman.c]

2006-10-23T11:17:11.666646Z leonardo

Fix : Repair the character cache logics with persistent cache entries (continued).

DETAILS :

Cygwin/gcc yielded unpleasant warnings.

[src/gxfcache.h src/gxccman.c src/gxstroke.c]

2006-10-22T18:58:27.280592Z L. Peter Deutsch

Fixes bug: xshow/yshow/xyshow checked the length of the widths array
incorrectly, and the outcome of the check was ignored.  Partially fixes a
discrepancy in PS3 CET 13-27/28/29.

[src/gxchar.c src/gstext.c src/gstext.h]

2006-10-22T17:58:51.962128Z L. Peter Deutsch

Fixes bug: the user path operators didn't check encoded user paths to make
sure that the operand string/array and operator string allowed read access.
Partially fixes a discrepancy in PS3 CET 13-29-3.

[src/ibnum.c src/zupath.c]

2006-10-21T22:38:11.960157Z L. Peter Deutsch

Changes exec, stopped, and .stopped so that if the object to be executed is
noaccess and executable, the invalidaccess error occurs with the object
still on the operand stack.  Fixes an Adobe incompatibility in PS3 CET
28-14-1.

[src/zcontrol.c]

2006-10-20T01:12:42.025502Z Raph Levien

FIX: Fixes CET 18-02A p4 and others. Optimization for filling shadings
by installing a clipper device with the path, and rendering complex 
color through it, does not produce correct results when fill rule is
eofill. This patch simply disables the optimization in the case of
eofill. We should probably look at why the optimized code produces
incorrect results, as that may affect correctness of eoclip, not to
mention the performance issues.

[src/gxfill.c]

2006-10-18T13:32:51.500333Z Ray Johnston

Fix error returned from currentdevparams. Fixes PS LL3 CET 27-03. Thanks
to Noriyuki Matsushima for this patch.

[src/ziodev2.c]

2006-10-18T07:01:10.427208Z Dan Coby

Fix for 688880 Encrypted PDF can not be processed.

DETAILS:

The problem file specifies both V = 1 and and a Length = 128
bits in the encryption dict.  This is contradictory since page 93 of
the PDF 1.6 spec says that if V = 1 then the key length should be
40 bits.

This change ignores the the Length value if V = 1.  This matches the
observed behavior with Adobe Acrobat 7.0.

[lib/pdf_sec.ps]

2006-10-17T13:33:02.347582Z leonardo

Fix (gs_main_finit) : Provide a right finalization for the language switch project.

DETAILS :

It needs to finalize 
without closing the output device
and without closing the graphics library and files,
because other interpreters may work with them
after the Postscript interpreter closes.

[src/imain.c]

2006-10-16T15:30:51.595142Z leonardo

Fix (memory management) : Restore the memory wrapper code consistency.

DETAILS :

It was broken during the ghostpcl project merging :

1. The USE_RETRY_AND_LOCKING_MEMORY_WRAPPERS code was inconsistent.
2. The !USE_RETRY_AND_LOCKING_MEMORY_WRAPPERS code caused 
   a MSVC compiler warning due to an inaccurate type cast.

[src/gsmalloc.c]

2006-10-16T15:08:20.540609Z leonardo

Fix : Repair the character cache logics with persistent cache entries.

DETAILS :

Important character caching problems have occasionally detected
while merging with the ghostpcl branch :

1. The ttfReader never released in PCL when a font has a valud XUID.

1.1. The new function gs_clean_fm_pair_attributes,
     is called when a font is being released by 'restore',
     but its cached characters continue to live in the cache.
     This function releases those font-matrix pair attributes,
     which may point to the font. When the font has 
     True Type data, it releases ttfReader and ttfFont.

1.2. The function gs_purge_font_from_char_caches
     is now called from gs_font_finalize,
     which is called from 'restore' and from the garbager.
     It allows gs_clean_fm_pair_attributes to be called
     from 'restore'. Note that when it is called from
     the garbager, it works idle because the method
     'free' is disabled while the garabarer runs
     for same allocator.

1.3. The new flag gs_font::is_cached prevents a redundant
     work of gs_purge_font_from_char_caches,
     when it is called from font_restore and from
     gx_font_finalize. Therefore the argument of 
     gs_purge_font_from_char_caches is now non_const.

1.4. With the new code, cached characters
     for fonts with valid XUIDs persist 
     across a document/job end. They may be reused
     when a next document/job renders same font-matrix .
     There is no way to purge cache between jobs 
     besides destructing entire cache and allocating it anew.

1.5. The new function gs_purge_font_from_char_caches_completely
     is coded for those clients, which 
     don't need the feature 1.4.

1.6. Clients (such a PCL interpreter) must immediately call
     gs_purge_font_from_char_caches or
     gs_purge_font_from_char_caches_completely,
     whenever they release a font immediately.
   
2. Cached characters were dropped from cache on 'restore'
   while a font has a valid XUID and can appear again afrer 'restore'.
   It happened because the old code called gs_purge_font_from_char_caches
   from font_restore due to its cache elements point to
   the font's XUID, which is being released.

2.1. Copy the XUID to a stable memory in gx_add_fm_pair.

2.2. Release it in gs_purge_fm_pair.

2.3. Disable the related code portion in font_restore.

2.4. The new function gx_attach_tt_interpreter
     is factored out from gx_add_fm_pair.
     Now it is also called from gx_lookup_fm_pair
     (with an intermediate function gx_provide_fm_pair_attributes)
     when a persistent pair is being associated with 
     a new font having same XUID.

[src/gxfcache.h src/gsfont.c src/gxccman.c src/zfont.c src/gxccache.c src/gxfont.h]

2006-10-16T12:50:05.195523Z leonardo

Fix (Resource machinery) : Improve working with ROM file system.

DETAILS :

1. Consider %iodevice% paths as absolute when combining a resource file name (gs_res.ps).
2. A minor code cleanup : Remove gp_file_name_combine_patch
   (an algorithmically equivalent change).
3. A minor code cleanup : Improve zfile_name_is_absolute
   (an algorithmically equivalent change).

[lib/gs_res.ps src/zfile.c src/zfile1.c]

2006-10-15T17:19:45.555905Z Ray Johnston

Fix for bug 688929 -- Genoa test 412-01.ps defines a couple of Type 42 fonts
without anything in the 'sfnts'. This hack switches it to a Type 3. This is
harmless for normal files since the check is quick and is only executed when
fonts are loaded.

[lib/gs_typ42.ps]

2006-10-13T01:14:58.600115Z leonardo

Fix (FAPI) : Restore the functionality and the documentation, which were broken with commitments 6998 7077 7078.

DETAILS :

1. The reentrant UFST was not tested yet.
2. We noticed a problem with -dTextAlphaBits=4, which to be fixed separately.

[src/fapiufst.c src/gxfapiu.c src/gxfapiu.h]

2006-10-13T00:02:34.922456Z leonardo

Fix (clist) : CCITTFaxDecode consumed extra byte.

DETAILS :

Debugged with ghostpcl ppmraw -r216 c327.bin .

This patch is based on my understanding of the problem,
which was obtained within a short time frame.
Therefore I'm, not sure that all statements of this comment
are necessarily correct.

The old code didn't write the EOD sequence for CCITTFax data.
Such behavior was designed many years ago in order to write 
a smaller clist output. A year ago the CCITTFaxDecode filter 
was improved with a workaround for an incorrect behavior of 
Adobe Acrobat, which writes an EOD when it is not required 
(see the gs revision 6123).
The workaround looks ahead for EOD and consumes it if it appears.

However doing that improvement, nobody took care about the
clist reader, which didn't write EOD and catenates other data
after CCITTFax data. If the subsequent data occasionally look as EOD,
they are erroneusely consumed by CCITTFaxDecode, 
and the clist reader continues with a wrong position.
It caused unpredictable behavoir and stochastic crashes.

This patch forces writing the CCITTFax EOD for clist. 
Maybe it's not the best fix, but it is what we can do
within the short time frame.

[src/gxclutil.c]

2006-10-11T21:12:53.047803Z leonardo

Fix (spot analyzer) : Clean pointers when closing.

DETAILS :

This is a minor code cleanup.
The garbager never deals with those pointers.
We clean them just against a heedache for those,
who reads that code.

[src/gzspotan.c]

2006-10-11T20:06:11.668976Z leonardo

Fix (memory manager) : gs_heap_free_object could break itself.

DETAILS :

See comment in code.
Debugged with ghostpcl 18-21.BIN .

[src/gsmalloc.c]

2006-10-11T18:50:08.977036Z Ray Johnston

Fix 'bound_0_1' procedure to return 'real' rather than 'int'.
Fixes CET 09-02.PS

[lib/gs_cspace.ps]

2006-10-11T18:12:10.866136Z Stefan Kemper

removing c++ comment.

Warning changes to gsmalloc.c have broken the -K set max heap usage option.

[src/gsmalloc.c]

2006-10-11T05:54:04.315501Z Ray Johnston

Add gs_cet.ps to the %rom%lib/ directory so that it will be found without
problems when running the PS CET conformance which needs this file.

Later we might remove it from the %rom%lib/ but it doesn't really take up
much space and it will prevent 'file not found' failures.

[src/int.mak]

2006-10-11T02:57:22.469112Z Ray Johnston

Initial version of 'startup' file to configure Ghostscript to match the
Adpbe CPSI to run CET tests.

[lib/gs_cet.ps]

2006-10-10T22:43:56.823756Z Stefan Kemper

Commenting out the memory wrappers retrying and locked.
This will obviously cause concern and testing for gs, 
on the other hand it simplifies the memory allocations
and removes some significant issues with memory cleanup
when multiple jobs are run together in a language switch
environment.

[src/gsmalloc.c]

2006-10-10T18:16:22.525231Z leonardo

Fix (PS interpreter) : Dont print "Returning error -102." that is not an error.

DETAILS :

The debug build printed "Returning error -102.".
-102 == e_InterpreterExit is not an error.
Don't print the confusing message.

[src/interp.c]

2006-10-10T18:00:19.925286Z leonardo

Fix (stroking) : Zero lengh dashes have been missed, part 2.

DETAILS :

1. Unwinding the revision 7094 change.

2. Fixing an antique bug, which persists since the repository was created.
   When computing the orientation of an isolated zero length stroke
   (near the code "const segment *end = psub->last;"),
   the old code erroneusely takes the direction to
   the last point of the previous subpath. 
   With recent changes it caused a wrong longitude adjustment
   for some PCL documents.
   Documented the right invariant in new comment.

3. The flag zero_length was wrong when a non-zero
   length segment follows a zero length segment.

4. Zero length strokes were missed with dot_length != 0
   and a non-trivial dash pattern (gxpdash.c, lib.mak).
   It's another case when PCL could miss dots.

[src/lib.mak src/gxpdash.c src/gxstroke.c]

2006-10-10T10:03:37.323396Z leonardo

Provide a handling of true Unicode fonts.

DETAILS :

Bug 688897 "Unicode fonts in Postscript" for the customer #130.

1. Define a new Ordering = Unicode for handling Unicode character sets.

2. Define a new Registry = Artifex for distinguishing those
   character sets from other Postscript vendors, 
   which do not define such character sets yet.

3. Define a new Identity-UTF16-H CMap for identity mapping
   from Unicode UTF16 to CIDs with the Unicode character set.

4. As a part of CIF font emulation with True Types,
   add the Unicode.Unicode entry to the .CMapChooser table,
   which actually is an identity translation (gs_ciddc.ps).

6. Extend the gs/lib/cidfmap syntax with handling
   Registry = Artifex (gs_fntem.ps).

7. Force embedding Artifex CMap into PDF (gsfcmap.c).

8. Account the knowledge that an Artifex Unicode CMap
   may be used for generating a ToUnicode CMap (zfcmap.c).

9. Document all that in gs/doc .

10. Bug: range.size was not initialized when creating
   an identity ToUnicode CMap (gsfcmap.c).

A PDF generated with this patch appears
not searchable with Adobe Acrobat,
and it cannot extract the text properly.
Not sure why. Likely it's another Adobe bug.

[Resource/CMap/Identity-UTF16-V lib/gs_ciddc.ps Resource/CMap/Identity-UTF16-H doc/Use.htm src/gdevpdtc.c src/gsfcmap.c src/zfcmap.c lib/gs_fntem.ps]

2006-10-06T18:53:35.444836Z Stefan Kemper

Stepping on Igor's stroke code fully expecting him to review it.
This is the copy of the stroke code Igor originally gave the PCL team.

The code it is replacing loses data and produces stray lines.

[src/gxstroke.c]

2006-10-06T16:54:37.190610Z Ray Johnston

Change to make color values be 'real' instead of sometimes 'integer' types
for PS CET 09-02 and MANY other pages.

DETAILS:

Since this is at the PS level, not the graphics lib, it shouldn't affect
PCL.

Note that 09-02 still shows a single instance of '0' instead of '0.0'.
I am continuing to track that down.

[lib/gs_devcs.ps src/zcolor.c]

2006-10-06T15:25:15.662720Z Stefan Kemper

Merge from pcl tree.

The freeing of the rop_dev and clip_dev in an image enum now 
unhooks forwarding devices prior to freeing otherwise there 
are memory leaks.

The rational behind the direct frees used here verses 
the more normal reference counting of graphic library objects 
has apparently been lost.

[src/gxidata.c]

2006-10-06T15:20:13.457027Z Stefan Kemper

Removing incorrect unsetting of device color when the device isn't a 
bit tagging device.  The bit tagging code shouldn't affect other devices.

[src/gspaint.c]

2006-10-06T15:18:10.804229Z Stefan Kemper

Changing a logging error into a return error that will be ignored later.

This makes the -Z# debugging output more usable.

[src/gdevdflt.c]

2006-10-06T15:16:00.887988Z Stefan Kemper

Merge changes from pcl tree.

PSI_INCLUDED is used to signal that gs is not at the top of the system but
rather is part of a language switching build.

In this case the outputing of pages and management of the device is not 
completely under postscript's control.

[src/zdevice.c]

2006-10-06T15:12:52.976332Z Stefan Kemper

Merge fix from pcl tree, 
writing a display list with a contone device seg faulted.

[src/gxclimag.c]

2006-10-06T14:08:05.588652Z Stefan Kemper

Restore code that is required for raster ops.

[src/gxdcolor.c]

2006-10-05T01:45:56.126213Z Alex Cherepanov

Pacify Valgrind. Copy a non 0-terminated PS string to a local buffer to avoid
scanning past the end of the string. Bug 688882.

[src/gdevpdfr.c]

2006-10-05T01:09:35.392689Z Alex Cherepanov

Following Acrobat Reader 5, ignore everything outside of begincmap..endcmap
Bug 688812, customer 170.

[lib/pdf_font.ps]

2006-10-05T01:00:55.479409Z Alex Cherepanov

Avoid the operand stack overflow. Construct CharStrings ductionary without
.dicttomark operator. Bug 688802, customer 130.

[lib/gs_ttf.ps]

2006-10-05T00:47:54.384597Z Alex Cherepanov

Use correct transformation matrix for calculating the current point movement
for PDF text rendering mode 3. Bug 688756, customer 700.

[lib/pdf_ops.ps]

2006-10-04T13:29:44.744703Z Alex Cherepanov

Fix a reference to an incorrect bug number in toolbin/vg_bugs.supp

[toolbin/vg_bugs.supp]

2006-10-04T12:30:21.555827Z Alex Cherepanov

Fix off-by-one error in the PDF font subset prefix generator that
mixed in an uninitialised byte when the object size was odd.
This error caused indeterministic PDF generation and Valgrind warnings.
Bug 688911.

[src/gdevpdtb.c toolbin/vg_bugs.supp]

2006-10-04T11:09:21.389337Z Alex Cherepanov

Use open_device procedure to identify the type of the device instead of the
standard gs_object_type() because gs_cpath_accum_device is allocaded on
the stack i.e. has no block header with a descriptor but has dev->memory set
like a heap-allocated device. Bug 688874.

[src/gxfill.c src/gzspotan.c src/gzspotan.h]

2006-10-03T18:08:37.387486Z leonardo

Fix (pdfwrite) : Pacify Valgrind with not touching an uninitialized data.

DETAILS :

Bug 688873 "pdfwrite :Valgrind reports uninitialized data".

The old code checked penum->text.x_widths, penum->text.y_widths
and shifted them forth and back when they are uninitialized.
It was not harmful because those pointers were not defererenced.
Also space.s_char was checked when unitialized. 
In those cases it should not be accessed.

[src/gdevpdtc.c src/gdevpdte.c]

2006-10-03T00:31:14.024018Z Ralph Giles

Port additional UFST initialization changes from ghostpcl trunk.

[src/fapiufst.c]

2006-10-02T23:26:12.368734Z Ralph Giles

Port UFST-related changes from the ghostpcl tree, r2472 to r2532. This
introduces gx_UFST_init() and _fini() functions, and make both PCL and 
PS ufst initialization use these functions instead of calling ufst
directly, so that the same ufst config is shared between the two.

Also, update the copyright headers, and defined a needed enum entry for 
UFST MicroType fonts.

[src/gxfapiu.c src/gxfapiu.h src/gxftype.h]

2006-10-02T23:21:05.393683Z Ralph Giles

Set normal eol and keyword substitution flags.

[src/gxfapiu.c src/gxfapiu.h]

2006-10-02T19:02:30.811324Z Ralph Giles

Make gs_image_common_init() a proper public function since it is called 
by the PCL interpreter.

[src/gsimage.c src/gsimage.h]

2006-10-02T14:10:53.409280Z Stefan Kemper


Add boolean USE_ttfReader to gs_type42_font_init()
In general this is always set true.  If this is set false the caller
will disable the attachment of ttfReader for dynalab ttf font hinting 
and the caller is expected to do all the gs_type42 font initialization
that was required prior to the addition of ttfReader to the code. 

Add an early out from gs_type42_font_init() that bypasses some table 
generation that isn't needed when USE_ttfReader is false.  Pulling the
return statement here will reenable this code and is harmless except for 
some small memory leaks.

Currently only the PXL downloaded ttf fonts use the false case init,
to render fonts with UFST not with FAPI ufst.

NO expected pdf or ps or pcl differences since the code path is identical.

[src/gxfcopy.c src/gxccman.c src/gxfont42.h src/gstype42.c src/zfont42.c]

2006-09-28T05:56:04.096363Z Ralph Giles

Add an error callback to the example jasper applications. Previously they
always failed (or succeeded) silently.

DETAILS:

The fprintf() calls were replaced with jas_eprintf() in this code along
with everywhere else, but no actual callback was installed, so the 
applications weren't able to give any feedback at all. So we now provide
a simple callback that just passes the message on to stderr as is appropriate
for a library client.

[jasper/src/appl/imgcmp.c jasper/src/appl/jasper.c jasper/src/appl/jasper_sdl.c jasper/src/appl/imginfo.c jasper/src/appl/jiv.c]

2006-09-27T20:37:41.367020Z Ralph Giles

Duplicate JPX image channels if the cmap box has multiple references to
satisfy the expectations of later parsing. Bug 688869.

DETAILS:

A paletted jpx image must contain a 'cmap' box that describes how to
build the output image channel by channel out of some combination of
decoded image components, which can be used either directly, or mapped
through a component of the included palette.

Previously, jasper created a new image component whenever a palette 
mapping was satisfied, but did nothing when the cmap specified a decoded
component was meant to be used directly. This created two problems: first
the cmap value was ignored, so if the direct mapping output channels were
in a different order from the decoded components, the would not be marked
correctly. Second, if multiple channels were mapped from the single decoded
component, this was not recorded and the image passed up from the decoder
would be "missing" a channel because component lookups don't go through
the decoded cmap table.

As I read the specification, we should really be creating a completely new
image by applying the cmap data to the decoded image. However, for PDF we
need access to the raw indexed image component before palette application,
and just duplicating directly references components within the same image
is a less invasive change.

[jasper/src/libjasper/jp2/jp2_dec.c jasper/src/libjasper/base/jas_image.c jasper/src/libjasper/include/jasper/jas_image.h]

2006-09-25T21:50:55.223674Z Ralph Giles

Correct a typo in the previous revision.

[src/configure.ac]

2006-09-25T21:45:34.607229Z Ralph Giles

Have the configure script check for fopen64 before using it.
Bug 688394.

DETAILS:

We use this as a shorthand to check for the marked *64() stdio
calls, and based on that define HAVE_FILE64, which is used in 
the unix platform code to select whether to call the marked
or normal FILE code when _LARGEFILE64_SOURCE is not defined.

This is required on MacOS X which does not provide fopen64()
and friends (or O_LARGEFILE) but nevertheless implements 
reasonable large file support with the normal routines on 
32-bit architectures without defining _LARGEFILE*_SOURCE.

The result should be the same with the autoconf build on
architectures where the previous code worked, including 
linux and cygwin. When building manually without passing
-DHAVE_FILE64, or on platforms that don't provide the 
marked 64-bit versions, we will now fall back to the 
vanilla functions, and so the bug may re-occur there. This
is better than failing to link on such platforms, which
was the previous behavior.

[src/Makefile.in src/configure.ac src/gp_unifs.c]

2006-09-24T23:50:46.301070Z Alex Cherepanov

Fix calculation of the PDF font subset prefix. This change has little effect,
except enabling previously unreachable code and generating different prefixes
in some cases.

[src/gdevpdtb.c]

2006-09-24T13:22:31.256099Z Alex Cherepanov

New version of vg_bugs.supp for the recent Valgrind and gcc. This file covers
all bugs detected on the regression test suite except the bugs in the system calls
and CRTL, which are difficult to suppres in the platform-independet way.

[toolbin/vg_bugs.supp]

2006-09-22T17:42:33.433152Z Alex Cherepanov

Change s/stream/strm/ to fix a MSVC 6 warning: C4224: nonstandard extension
used: formal parameter 'stream' was previously defined as a type.

[src/gp_iwatc.c src/gp_macio.c src/gp_mswin.c src/gp_os2.c src/gp_unifs.c src/gp.h src/gp_vms.c]

2006-09-22T00:51:32.310174Z leonardo

Fix : Cygwin/gcc warnings.

[src/gdevpdtt.c src/gdevpdtw.c src/devs.mak]

2006-09-21T20:24:01.154825Z leonardo

Fix (pdfwrite) : Don't use sscanf on a non 0-terminated PS strings.

DETAILS :

This redoes the revision 7062 change due to MSVC compiler warning.

The old code has 2 unpleasant hings :
1. MSVC yelds a warning about breaking 'const'.
2. It assumes no spaces at end of a serialized pdfmark argument value.

The new code should be clean.

[src/gdevpdfm.c]

2006-09-21T19:21:48.437020Z leonardo

Fix (pdf14 device) : Properly intersect rects when composing transparency buffers (continued).

DETAILS :

Bug 688631 "PDF segfault".

The old code supposed : the higher buffer, the smaller rect.
Not shure why. The test sample includes the opposite case.

Tha last patch for the subject appears incomplete.

[src/gdevp14.c]

2006-09-21T12:36:25.384099Z leonardo

Fix (pdfwrite) : Wrinting a PDF/A, convert True Type fonts into CIDFontType2 (continued 2).

DETAILS :

This completes the fix the bug 688790  
"pdfwrite : The PDF/A conversion needs to re-encode texts".

Adobe PDF/A preflight tool appears to check whether all glyphs
in the font have corresponding entries in W, W2 or Width array.
This includes unused glyphs and .notdef .
This patch implements creating a W array element for
.notdef when a Type 42 font is being converted into CIDFontType2.

Besides that, before this patch, when converting a Type 42 into
CIDFontType2, the W array was not written at all,
because pdf_write_embedded_font did not know about the conversion.
Adding a new argument to it for passing that information.

[src/gdevpdtb.c src/gxfcopy.c src/gdevpdtd.c src/gdevpdtt.c src/gdevpdtb.h src/gdevpdtw.c src/gxfcopy.h]

2006-09-20T18:26:17.744657Z Alex Cherepanov

Fix Valgrind warnings: (1) don't use sscanf on a non 0-terminated PS strings.
Temporaty replace the last character of the string with '\0' before scanning.
(2) Don't assign a structure to itself. Check for this case and skip the
assignment. Bug 688890.

[src/gdevpdfm.c src/gshtscr.c src/gdevprn.c]

2006-09-20T12:01:04.572458Z leonardo

Fix : pdfinflt.ps didn't work with some files.

DETAILS :

This is a minimal change for my current need.
This patch relates to the bug 687796, but doesn't fix it.

[toolbin/pdfinflt.ps]

2006-09-19T23:48:03.361024Z Ralph Giles

Correct a typo that cause jpx decoding to fail for all files.

[jasper/src/libjasper/jp2/jp2_dec.c]

2006-09-19T23:45:43.473583Z Ralph Giles

Propagate error messages from the jasper library.

[src/lib.mak src/sjpx.c]

2006-09-19T19:40:20.717813Z leonardo

Fix (pdfwrite) : Wrinting a PDF/A, convert True Type fonts into CIDFontType2 (continued).

DETAILS :

This is a partial fix the bug 688790  
"pdfwrite : The PDF/A conversion needs to re-encode texts".

This is a code restructurization against missed function prototypes.
The change is algorithmically equivalent.

[src/gdevpdtf.c src/gdevpdtw.c src/gdevpdtf.h src/gdevpdtw.h]

2006-09-19T18:59:10.571301Z leonardo

Fix (pdfwrite) : Wrinting a PDF/A, convert True Type fonts into CIDFontType2.

DETAILS :

THis is a partial fix the bug 688790  
"pdfwrite : The PDF/A conversion needs to re-encode texts".

PDF/A doesn't allow True Type fonts with Encoding Differences.
Therefore we convert such fonts into CIDFontType2.
The main work is done with 2 functions :
pdf_convert_truetype_font_descriptor and
pdf_convert_truetype_font.
See comments in code about the conversion algorithm.

Minor change (gdevpdtw.c) : The old code always compressed CIDToGIDMap.
The new code does dependently on the CompressFonts distiller parameter.
Except that, for a non-PDFA run the code change should be equivalent.

Now the font conversion works, but Adobe preflight tool
reports missed glyphs by unknown reason.
Will need a separate patch for that.

[src/gdevpdfx.h src/gdevpdtd.c src/gdevpdtf.c src/gdevpdtw.c src/gdevpdfb.h src/gdevpdtf.h]

2006-09-19T16:08:49.517323Z Alex Cherepanov

Work around a bug in the image operator, which doesn't always restore the
operand stack when it fails.
Bugs  688532, 688646, 688672, 688736, 688740, 688899.

[lib/pdf_draw.ps]

2006-09-19T09:55:25.954073Z leonardo

Fix (pdfwrite) : Uninitialized variables.

DETAILS :

1. ps_encoding_index sometimes was not initialized in gdevpdtt.c .
   Bug 688898 "ps2pdf segfaults in gdevpdtt.c: pdf_reserve_char_code_in_pdfont ()".

2. Cygwin/gcc reports a possibly uninitialized variable in gdevpdfu.c .
   Actually the compiler is not enough clever.

3. Removed unused variables in gdevpdtt.c .

[src/gdevpdtt.c src/gdevpdfu.c]

2006-09-19T08:20:45.476798Z leonardo

Fix (pdfwrite) : Generalize pdf_finish_font_descriptors (continued).

DETAILS :

This is a preparation for the bug 688790  
"pdfwrite : The PDF/A conversion needs to to re-encode texts".
The last patch appears incomplete.
This adds the pdf_resource_type_t parameter to pdf_finish_resources,
and defines pdf_convert_truetype_font_descriptor for future implementation.

This change is algorithmically equivalent.

[src/gdevpdtd.c src/gdevpdtf.c src/gdevpdfu.c src/gdevpdtw.c src/gdevpdtd.h src/devs.mak src/gdevpdtf.h]

2006-09-19T07:12:54.902919Z leonardo

Fix (pdfwrite) : Generalize pdf_finish_font_descriptors.

DETAILS :

This is a preparation for the bug 688790  
"pdfwrite : The PDF/A conversion needs to to re-encode texts".
It generalizes pdf_finish_font_descriptors to
pdf_finish_resources. Also define a stub for
pdf_convert_truetype_font.

This change is algorithmically equivalent.

[src/gdevpdtd.c src/gdevpdfu.c src/gdevpdtw.c src/gdevpdtd.h]

2006-09-19T03:55:34.654291Z Ralph Giles

Add the PDF/A and PDF/X prefix source files to the installed library 
file list. Bug 688861.

[src/unixinst.mak]

2006-09-19T02:33:01.156102Z Ralph Giles

Add a few new files to the unix makefile installation target. In 
particular, opdfread.ps is needed by the ps2write device. We also
install the new ps2ps2 convenience script for invoking it. Bug 688861.

[lib/ps2ps2 src/unixinst.mak]

2006-09-19T02:21:59.699240Z Ralph Giles

Correct a broken link. Fixes bug 688896.

[doc/Ps2pdf.htm]

2006-09-16T02:31:46.612720Z Alex Cherepanov

Change s/steram/stream/ introduced in rev. 7040 and causing compile errors
on old versions of MSVC. Bug 688893.

[src/gp_mswin.c src/gdevpdfi.c]

2006-09-14T17:29:56.804569Z Alex Cherepanov

Copy a non 0-terminated PS string to a local buffer to avoid scanning past
the end of the string. Also fix a few compiler warnings.
Bug 688882.

[src/gdevpdfp.c]

2006-09-14T17:19:41.966384Z Alex Cherepanov

Pacify Valgrind. Initialize penum->planes[i].source.data in gsimage.c
These pointers are enumerated during garbage collection.
Bug 688886.

[src/gsimage.c]

2006-09-14T12:15:43.242134Z leonardo

Fix (type1 hinter) : Delayedly adjust matrix precision with sbw data.

DETAILS :

Bug 688875 "type1 hinter: Valgrind reports uninitialized data".

The old code initializes matrices after importing data from sbw instruction.
If an sbw argument is big, t1_hinter__adjust_matrix_precision
adjusts the ctmf matrix coeffitients, which appear uninitialized
at that time. 

In most cases the bug has no consequences besides bothering Valgrind.
Only a harmful case was a big glyph width after small coordinates of all outline poles.
We don't know whether it practically appears.

The new code delays the accounting sbw arguments for the
time when all poles are imported. At that time ctmf
is definitely initialized, and the trailing moveto
already accounted the glyph width. So it only needs to account
the glyph origin for the case when its coordinate is 
a big negative number (a pretty rare case though).

[src/gxhintn.c]

2006-09-14T04:31:59.160662Z Ralph Giles

Make the gs configure check the exit code of the jasper configure script 
and print an error if it fails, avoiding a later build error if 
jas_config_ac.h is not generated. Patch from Marcos H. Woehrmann. 
Closes bug 688887.

[src/configure.ac]

2006-09-14T02:07:08.908291Z Ralph Giles

Check for a jpx image decoding fewer than the expected number of 
channels, returning an error instead of a segfault. Work around
for bug 688869, customer 531.

[jasper/src/libjasper/jp2/jp2_dec.c]

2006-09-14T01:57:35.708945Z Ralph Giles

Add correct copyright header and revision Id to some recently added 
files. Also set native eol-style.

[src/strmio.c src/wtsimdi.c src/strmio.h src/gdevimdi.c]

2006-09-13T17:23:29.059613Z leonardo

Fix (pdfwrite) : CIDFontType2 must not embed into PDF 1.2 .

DETAILS :

Bug 688889 "pdfwrite : CIDFontType2 must not embed with CompatibilityLevel=1.2".

The last patch fixed it incorrectly : it skips the font embedding 
rather than converts the font into a non-CID.
This patch does convert the font into a Type 3 bitmap font.

[src/gdevpdtt.c src/gdevpdtf.c]

2006-09-13T11:59:10.663495Z leonardo

Upgrading the clist file access with 64 bits file access.

DETAILS :

Bug 688394 "clist playback of large pdf image segfaults".

clist file position variable changed type to int64_t.

[src/gxclmem.c src/gxclfile.c src/gxclist.c src/gxcldev.h src/gxclmem.h src/gxband.h src/gxclread.c src/gxclio.h src/gxclutil.c]

2006-09-13T11:57:46.585499Z leonardo

Implementing a 64 bits file access.

DETAILS :

This is a preparation for a fix for 
bug 688394 "clist playback of large pdf image segfaults".

This is a preliminary implementation.
Now it compiles for MSVC8, Linux/gcc .
For other platforms/compilers it is stubbed with 32 bits file access.

This patch requires to define  -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE
compiler options on Linux in Makefile .

We could not figure out why Cygwin/gcc defines fopen64, ftello64, fseeko64,
and then cannot link them. We didn't find imlementations of those functions 
in C libraries.

[src/lib.mak src/gp_iwatc.c src/gp_macio.c src/gpmisc.c src/gp_mswin.c src/gpmisc.h src/gp_os2.c src/gp_unix.c src/gp_unifs.c src/gp.h src/gp_vms.c]

2006-09-13T11:56:34.416452Z leonardo

Unwinding the revision 7038 due to wrong log message.

[src/lib.mak src/gp_iwatc.c src/gp_macio.c src/gpmisc.c src/gp_mswin.c src/gpmisc.h src/gp_os2.c src/gp_unix.c src/gp_unifs.c src/gp.h src/gp_vms.c]

2006-09-13T11:36:29.213707Z leonardo

Fix : Cygwin/gcc warnings.

DETAILS :

This includes fixes for potentionally harmful warnings :

Uninitialized variable : interp.c, zupath.c .

Missing function prototype : zfile.h, stream.h (for sfxstdio.c),

[src/lib.mak src/gp_iwatc.c src/gp_macio.c src/gpmisc.c src/gp_mswin.c src/gpmisc.h src/gp_os2.c src/gp_unix.c src/gp_unifs.c src/gp.h src/gp_vms.c]

2006-09-13T03:18:02.411968Z L. Peter Deutsch

Fixes a minor logic bug relating to handleerror introduced by rev 6970.

[lib/gs_init.ps]

2006-09-13T00:08:23.753905Z leonardo

Fix (pdfwrite) : Improve the encoding choice for 'glyphshow'.

DETAILS :

Bug 688889 "pdfwrite : CIDFontType2 must not embed with CompatibilityLevel=1.2".
Also fixing the test case of the bug 688857 with CompatibilityLevel=1.4
(some characters were converted into outlines).

1. Embedded a CMap, which is not allowed in PDF 1.2 (gdevpdtc.c).

2. CIDFontType2 must not embed inro PDF 1.2 (gdevpdtf.c).

3. Improved pdf_make_text_glyphs_table_unencoded about the choice of
   character codes for converting /name glyphshow into a PDF text (gdevpdtt.c).
   See comments in code.

[src/gdevpdtc.c src/gdevpdtt.c src/gdevpdte.c src/gdevpdtf.c src/gdevpdtf.h]

2006-09-12T05:07:58.847657Z Ralph Giles

Move the debugging information to a single line to reduce log noise.

[src/mkromfs.c]

2006-09-11T20:26:01.824717Z Ralph Giles

Check in working files for the GPL imdi (integer multi-dimensional 
interpolation) library for color mapping. This is needed by the imdi
device. Port from the ghostpcl tree.

[imdi/arch.h imdi/imdi.c imdi/Jamfile imdi/imdi.h imdi/imdi_imp.h imdi/imdi_k.c imdi/cctiff.c imdi/LICENSE imdi/imdi_k.h imdi/imdi_tab.c imdi/config.h imdi/imdi_gen.c imdi/README imdi/cgen.c imdi/imdi_tab.h imdi/copyright.h imdi imdi/imdi_gen.h]

2006-09-11T07:02:18.845878Z L. Peter Deutsch

Replaces the unnecessary extra 'stopped' around uses of .completefont
(introduced in 7017) with uses of .errorexec, which was created for exactly
this purpose; restructures .completefont slightly so if .buildfontxxx
signals an error, that error will be reported rather than invalidfont.
(This behavior matches the Adobe interpreters.)

[lib/gs_fonts.ps]

2006-09-11T03:32:51.278989Z L. Peter Deutsch

Makes zbuildfont0 generate a rangecheck error if the Encoding of a
SubsVector-based font is not large enough for the entire code space, for
greater Adobe compatibility.  (The graphics library only causes an error if
a show operator would actually reference an element beyond the end of the
Encoding.)

[src/zfont0.c]

2006-09-11T03:29:39.283562Z L. Peter Deutsch

Makes kshow generate invalidfont if the current font is a composite font,
per PLRM.  (The graphics library does enforce this restriction, but in
gs_kshow_n_init, not in gs_kshow_begin, and the interpreter uses the
latter.)

[src/zchar.c]

2006-09-10T22:24:31.060699Z leonardo

Fix : pfont->uid.xvalues uses a wrong allocator 

DETAILS :

Bug 688883 "pfont->uid.xvalues uses a wrong allocator".

In the old code build_gs_simple_font allocates uid in the current memory, 
but few moments later build_gs_sub_font changes the current space to the space 
of the font dictionary, and allocates the font structure in it.

The new code allocates the font's uid in same space as the font dictionary.

[src/zbfont.c]

2006-09-10T15:55:10.276590Z Alex Cherepanov

Pacify Valgrind. Initialize an uninitialized variable and break up an
expression, which, after overly aggressive optimization, causes an access
to uninitialized memory. Partial fix for the bug 688845.

[src/sfxstdio.c src/zcontrol.c]

2006-09-10T15:16:03.635497Z Ray Johnston

Change to use 'export' rather than 'checkout' to decrease the size of the
local directory. We don't need the .svn tree for the test.

[toolbin/search-svn-revs]

2006-09-09T19:22:14.993650Z Alex Cherepanov

Use an integer format to print uint32_t value instead of a long format.
We don't support 16-bit platforms but we do support 64-bit platforms where
uint32_t and long are of different size. Bug 688860.

[src/mkromfs.c]

2006-09-08T17:14:10.868705Z Dan Coby

Fix for matrix operation floating point accuracy differences in the
CET 10-xx.ps files.

DETAILS:

This fix adds casts to float to produce the same floating point results
from matrix calculations as expected by the CET.

[src/gsmatrix.c src/gscoord.c]

2006-09-07T11:59:03.339408Z leonardo

Fix (pdfwrite) : Provide a conservative choice of BaseEncoiding.

DETAILS :

Bug 688823 "large files embedding AndaleMonoWTG".

The old code choosen BaseEncoding for each text string independently 
on others. It caused creating multiple font copies due to encoding conflict.
The new code implements a new font resource property 
preferred_encoding_index to make the choice be conservative
in case of multiple possibilities.

[src/gdevpdtt.c src/gdevpdtf.c src/gdevpdtf.h]

2006-09-07T06:41:20.228510Z Ray Johnston

Fix rangecheck problem (688841) and wrong .notdef appearance (688803)
for customer #130.

[lib/gs_ttf.ps]

2006-09-05T21:08:03.225425Z leonardo

Fix (pdf14 device) : Properly intersect rects when composing transparency buffers.

DETAILS :

Bug 688631 "PDF segfault".

The old code supposed : the higher buffer, the smaller rect.
Not shure why. The test sample includes the opposite case.

[src/gdevp14.c]

2006-09-04T22:47:41.607858Z Alex Cherepanov

Add Valgrind error suppression files for Ghostscript and 3rd party libraries to
gs/toolbin .

[toolbin/vg_bugs.supp toolbin/vg_okay.supp]

2006-09-04T12:50:36.207010Z leonardo

Fix (stroking) : Zero lengh dashes have been missed, part 1.

DETAILS :

Bug 688838 "stroking: A zero length dash missed".
Bug 687720 "Zero length lines must not stroke" (recently reopened).

This patch defines a new path element type dash_segment,
and uses it for internal needs of the stroking algorithm.

The old code skipped zero length dashes with a non-round cap.
It appears incompatible to Adobe CPSI.
The new code renders zero length dashes with any cap type,
if the path is not degenerate.

The new type of path segment works for storing the path tangent
at the dash start point. The tangent can't represent with a small line segment
(as it tried in old hacks) due to insufficient precision of 'fixed'.

In subpath_expand_dashes the branch "within epsilon of the end
of the dash element" have been changed for a better Adobe compatibility
with looking ahead for a zero length dash pattern.
When a zero length dash fall to a path corner,
the old code choosen the direction of the next segment (after the corner).
The new code (as Adobe compatibile) chooses the direction of the last segment
(before the corner).

In the old code of gx_stroke_path_only_aux we don't understand the branch
"if (pgs_lp->dot_length != 0) break;"
It look contradicting to the comment above it.
Leaving it as it is, but the condition has been changed to 
(pgs_lp->dot_length != 0 && pseg->type != s_dash)
to comply with the new logic. Likely dot_length is now a rudiment.

The old code arbitrary applied a horizontal stroke adjustment for 
zero length dashes. The new code uses the direction of the path tangent.
Due to that some dashes got ununiform shapes, and we improved 
the stroke adjustment against undiserable regression with PixelisAd.pdf.
The new code adjusts horizontal and vertical strokes,
each stroke by both directions X and Y, if the dash length
is greater than 1 pixel, and the dash is isolated. 
Otherwise the transversal adjustment applies only.

The old code did not render zero length subpathes 
when .setdotlength was called with a non-zero argument.
It happens since Revision 4173.
The new code restores the correct behavior, which is important
for the PCL interpreter.

An unfixed problem :
When a dash pattern is very short, 
the last dash of a segment appears ununiform due 
to accumulating a significant rounding error.
This problem to be fixed separately in order to
simplify the regression analyzis.

Note that this patch doesn't provide an HP LazerJet compatibility,
which orients zero length dashes at path corner differently than Adobe.
Also HP LazerJet doesn't paint zero length pathes with round caps as PLRM3 specifies.

[src/lib.mak src/gxpdash.c src/gxpath.h src/gzpath.h src/gxstroke.c src/gxpcopy.c src/gxpath.c]

2006-09-04T11:40:17.503680Z leonardo

Fix (ps2write) : Didn't write the OPDFRead procset.

DETAILS :

This patch includes 3 things :

1. In gdevpdfd.c : A temporary fix for Bug 688856  
"Problems with ps2write (see comment #5)".
We keep the bug open because it still requires our
attention about the order of initialization events.

2. In gdevpdtt.c : Allow writing True Types with glyph indices over 255.
The old code is compatible to a bug in Adobe reader 3,
which is irrelevant to ps2write. The new code 
keeps the old logic with pdfwrite and skips the check
with ps2write.

3. In opdfread.ps : .max was undefined.

This patch helps to work on the customer bug 688790  
"pdfwrite : The PDF/A conversion needs to to re-encode texts"

[src/gdevpdtt.c lib/opdfread.ps src/gdevpdfd.c]

2006-09-01T23:23:22.779504Z Ralph Giles

Port in progress IMDI device from the gs853merge branch.

DETAILS:

This implements a contone device that does accurate colorspace 
transforms based on ICCLib/Argyle IMDI. This is work in progress
by Dan Coby. It expectes the imdi source code off the gs top-level;
this define IMDISRCDIR is in devs.mak, but should be moved to the
top level makefile as with the other 3rd party library sources.

Committing to trunk so as not to lose the work when the merge branch 
goes away. New development should happen here.

[src/wtsimdi.c src/devs.mak src/gdevimdi.c]

2006-09-01T23:16:13.866145Z Ralph Giles

The official resource path is Resource/Font not Resource/Fonts

[src/Makefile.in]

2006-08-31T21:56:16.536344Z Dan Coby

Fix for 'invalid restore' in CET test file 16-04.ps.

DETAILS:

There are were complications.  1)  The procedure .completfont was not properly
signalling an error when it occured.  2)  This procedure is used from both
definefont and findfont.  We need the error to be indicated as coming from
the appropriate procedure.

The fix for this problem is to fix .completefont to properly report errors
and to add stopped contexts around each of the invocations of .completefont,
loading the errorname from .completefont and calling signalerror again with
the appropriate procedure name.

[lib/gs_fonts.ps]

2006-08-31T10:34:11.431819Z leonardo

Fix : Improving the documentation about computing a text object tag in gspaint.c .

DETAILS :

It's how I understand it while communicating with Stefan and Henry.
I'll post it to code review for possible further improvements.

[src/gspaint.c]

2006-08-31T09:53:51.102347Z leonardo

Fix : Cygwin/gcc warnings.

DETAILS :

This includes fixes for potentionally harmful warnings :

Uninitialized variable : interp.c, zupath.c .

Missing function prototype : zfile.h, stream.h (for sfxstdio.c),

[src/gxi16bit.c src/gxhintn.c src/zstack.c src/stream.h src/interp.c src/files.h src/gswts.c src/gdevjpeg.c src/zupath.c]

2006-08-30T19:04:15.573176Z L. Peter Deutsch

Adds an Id line, accidentally omitted on initial checkin.

[toolbin/ocheck.py]

2006-08-30T18:38:50.635148Z Ralph Giles

Print the hostname and architecture of the machine running the 
regression to better distinguish multiple reports. This calls
common unix tools and may therefore reduce portability.

Also, print something to acknowledge empty fields in the report.

[toolbin/tests/run_nightly]

2006-08-30T16:37:43.892868Z L. Peter Deutsch

Adds a new tool, ocheck.py, for analyzing the dependency structure of object
modules.  (It was originally created for detecting references from the
library to the PostScript interpreter.)  While written in Python, it
requires GNU-compatible 'nm' and 'objdump' programs, and also uses Python's
subprocess module, so it may only run on Unix/Linux systems.

[toolbin/ocheck.py]

2006-08-30T00:24:55.621075Z Ralph Giles

Port Stefan Kemper's object tagging work from the gs853merge branch of 
the ghostpcl tree. This implements a simple and somewhat ad hoc method 
of generating tag bits (as for RGBK generation) marking text and vector 
vs image pixels.

DETAILS:

This conflicts with Dan Coby's fix for bug 688638 in r6702. Dan will 
resolve the conflict as part on new work he's doing on the code.

[src/lib.mak src/gstext.c src/gdevbit.c src/gspaint.c src/devs.mak src/gsutil.c]

2006-08-29T15:38:38.438783Z leonardo

Fix : MSVC compiler warning.

[src/strmio.c]

2006-08-29T04:45:22.639369Z Ray Johnston

Port changes over from the gs853merge tree to allow building a graphics
lib with strmio, but without any interpreter modules (PCL6).

[src/stream.h src/sfxstdio.c src/files.h src/zfile.c src/stream.c]

2006-08-29T04:26:49.196416Z Ray Johnston

Add missing dependency for sarc4 filter module in pdfwrite. Needed when
PDF interpreter is not included, but pdfwrite is.

[src/devs.mak]

2006-08-29T04:23:40.404599Z Ray Johnston

Set s->position to aero initially so that sftell before any other operation
will be correct. Reformat prototypes in strmio.h to single line format.

[src/strmio.c src/strmio.h]

2006-08-29T03:43:36.531545Z Ralph Giles

Port jpeg device scale and translate functions from GhostPCL.

DETAILS:

This patch adds four new parameters to the jpeg devices. In addition to 
Quality, one can now set float parameters ViewScaleX, ViewScaleY, 
ViewTransX, and ViewTransY so set a scale and offset to use when 
rasterizing the page.

This patch also expands some of the device parameter macros and cleans 
up the comments.

[src/gdevjpeg.c]

2006-08-26T19:13:58.371290Z Dan Coby

Fix for CET test file 18-02F.ps.  The makepattern operator creates a pattern
dictionary that contains an 'Implementation' entry. The PLRM 3rd says the
following about the contents of the Implementation entry:  "The type and
value of this entry are implementation-dependent."  However 18-02F.ps page 2
expects that this entry be an array and that the second element of the array
be a gstate.  We are making GS compatible with what the CET expects.

[lib/gs_lev2.ps]

2006-08-26T00:43:26.480835Z Ralph Giles

Fix comment formatting.

[src/gsptype1.c]

2006-08-23T01:42:29.044863Z Ray Johnston

Fix missing return of combined string length and add missing return cundition
documentation.

[src/gpmisc.c]

2006-08-21T20:37:48.696370Z Ray Johnston

Handle IODevice specifications in file name in gp_file_name_combine_generic
by detecting leading '%' and returning the filename unchanged. The file_name_
combine logic is platform dependent, but IODevices don't use the same rules,
so an IODevice prefix can't be meaningfully processed.

DETAILS:

IN theory, a %os% header should be treated differently, but for now handle
this as an IODevice case. This means that a %os% prefix can be used to avoid
processing such as changing A/../B to B.

[src/gpmisc.c]

2006-08-19T17:33:54.163240Z Ray Johnston

Revert previous change that could cause an infinite loop until I can
figure out this "file_name_combine" logic in order to handle the %device%
syntax without the hang.

[src/gpmisc.c]

2006-08-18T10:34:25.106987Z leonardo

Fix (pdfwrite) : Quiet the heal validation procedure.

DETAILS :

See comment in code.

[src/gdevpdtt.c]

2006-08-18T07:56:59.656655Z leonardo

Fix : MSVC8 compiler warnings.

DETAILS :

gs_lib_ctx_get_non_gc_memory_t is called in sfopen and the result is passed to
file_open_stream, which assumes non-const.

A better fix would be to assume gs_memory_te to be const for allocators
and for functions and for structures which pass it transparently to allocators.
Actually allocators modify only a subclass data,
so that 'const' may be safely broken inside the allocator method
when casting to the subclass.
The garbager modifies exactly gs_memory_t pointers,
but it is NOT called from allocators.

The "better" fix requires changes to lots of modules,
so we choose the easiest fix for now.

Minor changes : 
1. Unuseful variable in fapiufst.c unintentiopnally contributed with the last patch.
2. "const char *" to "const byte *" warning in strmio.c .

[src/strmio.c src/gslibctx.c src/fapiufst.c src/gslibctx.h]

2006-08-18T04:42:11.979343Z Ray Johnston

Modifications to switch to "strmio" stream I/O so that we can read from
either OS file system or IODevice files (such as %rom% file system).
Also remove unneeded i_ctx_p from fapi_*_instantiate functions (so that
we don't need the PS interpreter). The strmio functions are now included
in the graphics lib build (always).

Change fapiufst to use strmio instead of FILE * file IO. A separate change
is needed in UFST code to do this (fc_dafil.*)

Add UFST_ROMFS_ARGS to add the fco's to the %rom% file list. Note that the
UFST_ROMFS_ARGS are not defined in any top level makefile in the gs tree
but are used by the language_switch build where they have been tested.

Remove some 'hard coded' paths in the fapiufst module (F:/...)

[src/iplugin.h src/lib.mak src/strmio.c src/int.mak src/fapiufst.c src/strmio.h src/gpmisc.c lib/gs_fapi.ps src/iplugin.c lib/FAPIconfig-FCO src/fapi_ft.c]

2006-08-18T04:04:48.484817Z Ray Johnston

Refactor several FILE stream related routines to sfxstdio.c so that zfile
will not be needed in order to use strmio functions coming soon. We want
to be able to use strmio without the PS interpreter.

[src/stream.h src/sfxstdio.c src/zfile.c]

2006-08-17T15:27:55.324234Z leonardo

Fix (resource machinery) : 'resourceforall' truncated names of file-based resources.

DETAILS :

Bug 688737 "'resourceforall' truncates names of file-based resources".
Thanks to SaGS for the good analyzis done in the bug report.

When enumerating file-based resources, the library
enumerates resource file paths and then needs to
decompose a file path into a directory name and the resource name.
The resource name, which matches the specified template,
is always a suffix of the path. Thus to know the resource name,
one needs to compute the length of the suffix.
However the latter is not trivial
due to mixing 2 syntacies : the Postscript template string syntax,
and the file path syntax of the underlying operating system.

To know the suffix length, the old code computed
the difference of the directory path template length,
and the template argument length.
Hoewver the directory path length in not equal to
the directory path template length if the patch
includes symbols, which need an escapement when converting
a string to a template string.

The new code passes lengthes of source directory paths though the
.generate_dir_list_templates procedure, so that they don't need to 
restore from the generated templates. 
The patch enhances the function with inserting source length between the
generated template list elements. The new function
gets an additional boolean operand, which tells whether to insert
lenthes or not. The enhanced function is renemaed into
.generate_dir_list_templates_with_length .
The old name .generate_dir_list_templates is defined for
the backward compatibility as a specialization of the new function.
The new function works for ResourceForAll .

[lib/gs_res.ps lib/gs_init.ps]

2006-08-16T17:23:10.339348Z leonardo

Fix (font renderer) : Clean up the character cache after a character rendering fails.

DETAILS :

When a character rendering fails, the old code leaves 
character data allocated in the cache but the character
is not added to the hash table. It breaks a global invariant
(1 to 1 correspondence of hash table entries and cached characters),
which is assumed by other cache accessors. As a result it 
causes an infinite loop when the function alloc_char_in_chunk 
is later called for another character and needs to release cache 
space from the "incomplete" character. 
Thanks to Peter L. Deutsch for analyzis.

The infinite loop occurance looks pretty stochastic because 
it depends on many factors, such as cache size and sizes rendered of glyphs.

The new code performs a cache cleanup 
when leaving a character rendering with error code.
See comments in code for more details.

This fix changes the prototype of gs_type42_append,
which is called from the PCL interpreter.
It should fix the problem with True Type fonts
in the PCL interpreter.

For type 1 fonts the cleanup code is a part of the PS interpreter
rather than a part of the graphics library.
It is not harmful because PCL interpreter doesn't render Type 1 fonts.
A better fix needs to modify the prototype of 
type1_exec_init and store the gs_show_enum pointer into the gs_type1_state instance,
to provide the cleanup in type1_continue_dispatch.
It would look ugly, so we don't do it now without a strong necessity.

Debugged with CET tests 13-12.PS, 13-22.PS .

[src/lib.mak src/zchar42.c src/gxfont42.h src/int.mak src/gstype42.c src/zchar1.c]

2006-08-16T00:09:37.858838Z Dan Coby

The ustrokepath operator has an optional matrix parameter.
This matrix is concatenated to the CTM.  The specified path
is then stroked.  This change restores the original CTM after
the path has been stroked.  Fixes the much25 test on page 2
of the CET test file 10-15.ps.

[src/zupath.c]

2006-08-14T23:05:38.304015Z Ralph Giles

Enable COMPILE_INITS by default in the autoconf build, as suggested by 
Ray Johnston.

[src/configure.ac]

2006-08-14T22:47:33.394093Z Ralph Giles

Fix a type size issue that prevented mkromfs from running correctly on 
64 bit machines. Bug 688792.

[src/mkromfs.c]

2006-08-14T22:08:43.391773Z Dan Coby

Add operand type checks and length checks for the currentmatrix,
identmatrix, and setmatrix operators.  This is done to match
error types expected by the CET.  10-03.ps page 2 tests
currentmatrix.  10-06.ps page 1 tests identmatrix.  10-14.ps
page 2 tests setmatrix.

[lib/gs_init.ps]

2006-08-14T12:54:58.867665Z Alex Cherepanov

Report rangecheck or typecheck errors rather than undefined when the image type
is not known. Partial fix for 12-07a.ps and 12-08b.ps .

[lib/gs_img.ps]

2006-08-14T09:46:08.791598Z Alex Cherepanov

Return undefinedresult instead of rangecheck from dict_int_null_param()
and dict_uint_param() procedures when the key is not found.
Partial fix for 12-07a.ps and 12-08b.ps .

[src/idparam.c]

2006-08-13T03:28:06.727937Z Alex Cherepanov

Emulate sequential operand checking for colorimage operator.
Reject strings of different length as multiple date sources for sampled images.
Fix a typo in img_unbuild_image_dict procedure.

[src/zimage.c lib/gs_img.ps]

2006-08-11T19:44:11.724459Z leonardo

Fix : gs_fillpage passed a low level color to high level devices.

DETAILS :

This was occasionally detected while working on the bug 688641.
gs_fillpage inaccurately checked whether the device can handle high level colors,
and sometimes passed low level color instead high level color.
It happens so because gx_hld_is_hl_color_available works only after a color is set.

We don't expect a behavior change for pdfwrite, ps2write from this patch, 
because they ignore the initial page fill, which gs_fillpage performs.
Other devices don't handle high level color, so the change doesn't affect them also.

[src/gspaint.c]

2006-08-11T17:50:36.791125Z leonardo

Fix (pdfwrite) : A stronger condition for skipping the initial fill with a white color.

DETAILS :

Bug 688641 "pdfwrite is_in_page is broken, leads to spurious transparency".

The old code skept any number initial fills with a white color.
The new code skips only if the filling box is entire page.
Also the condition about nested streams (sbstack_depth == 0) was wrong for ps2write.

[src/gdevpdfd.c]

2006-08-11T13:09:34.153091Z leonardo

Fix (type 1 hinter) : Prevent an infinite loop on an incorrect contour.

DETAILS :

Bug 688676 "Ghostscript 8.53 enters infinite loop rendering a font".

The old code inaccurately worked with 'closepath' segments when 
trying to apply a hint.

[src/gxhintn.c]

2006-08-11T11:48:47.724620Z leonardo

Fix (pdfwrite) : Upgrading the documentation about AutoFilter*Images.

[doc/Ps2pdf.htm]

2006-08-10T11:13:34.225727Z leonardo

Fix (pdfwrite) : Wrong xref : Unuseful object ID when a font is not really used in the document.

DETAILS :

Bug 688824 "invalid xref table from pdfwrite",

The old code reserved an object ID for the FontFile object
when the font is set but no text rendered with the font in the document.
The new code skips creating the FontFile object if
no object ID assigned to the font descriptor.

[src/gdevpdtd.c]

2006-08-10T07:37:45.977950Z leonardo

Fix : MSVC8 compiler warnings.

[src/gdevdflt.c src/zfunc0.c]

2006-08-09T17:48:58.178137Z Raph Levien

Fix: Change pdfwrite pattern bbox to use PDF compliant syntax for float
bbox coordinates, rather than sprintf %g. Fixes (reopened) bug #688167.

[src/gdevpdfv.c]

2006-08-09T01:29:21.048118Z L. Peter Deutsch

Changes the equality algorithm for FontID objects to match Adobe
interpreters (we think).  NOTE: THIS IS A NON-BACKWARD-COMPATIBLE CHANGE
(but one that is unlikely to have any adverse consequences).

[src/iutil.c]

2006-08-09T00:32:12.853814Z Dan Coby

Fix for 688822 failure to repair broken xref table.

DETAILS:

The given test file has problems.  The file was not mangled.  the
application that created the file has some problems.  However Acrobat
7.0 is able to display the file.

The file does not specify the application which created the file.

The file misspells the key word startxref (it says startref).  The
xref location is given as 54593016.  The file only has 2,210,991 bytes.
The the location is off by over a factor of 20.

The fix consists of making the xref rebuild logic tolerant of the
misspelling and verifying that the given xref location is within the
file.

[lib/pdf_main.ps lib/pdf_rbld.ps]

2006-08-09T00:17:29.773469Z Dan Coby

Change the error reporting to match the CET expected values for CET
test file 10-01.ps page 3.  We now correctly report stackunderflow
and type checks on this page.

[src/iutil.c]

2006-08-09T00:11:09.435929Z Ray Johnston

Remove an optimization that doesn't make a measurable difference in
preparation for restructuring FILE * stream functions into the graphics
library (out of zfile.c).

[src/zfile.c]

2006-08-08T16:04:53.066224Z L. Peter Deutsch

Fixes a just-introduced bug in the stackunderflow case of the user path
operators.

[src/zupath.c]

2006-08-07T17:26:14.883418Z Alex Cherepanov

Makes ifelse and if operators check the type of the topmost argument before
checking other arguments.

[src/interp.c src/zcontrol.c]

2006-08-07T08:38:34.292323Z L. Peter Deutsch

Makes error returns from ineofill (and many other user path operators) match
Adobe interpreters.

[src/zupath.c]

2006-08-06T20:36:34.745839Z Alex Cherepanov

Makes dictstack check for the array size before checking for the access status.

[src/zdict.c]

2006-08-06T14:13:41.382704Z Alex Cherepanov

Return typecheck rather than invalidaccess when given a literal
array instead of a procedure.

[src/iutil.c]

2006-08-06T01:34:32.877045Z Alex Cherepanov

Makes rectfill, rectstroke, and rectclip generate typecheck rather than
rangecheck when given an argument of the wrong size or content.

[src/zdps1.c src/ibnum.c]

2006-08-05T04:33:11.593911Z L. Peter Deutsch

For greater Adobe compatibility, moves all non-standard entries out of
errordict: the handler for unknownerror to a new gserrordict (known to the
interpreter), and .GShandleerror to systemdict.  Similarly, moves making
errordict entries for optional features (including Level 2) to the feature
implementation file, so that e.g. the DPS entries don't appear in non-DPS
systems.

[lib/gs_dps.ps lib/gs_dps2.ps src/interp.c src/ierrors.h lib/gs_init.ps src/gserrors.h]

2006-08-05T03:17:54.678058Z Alex Cherepanov

Makes astore generate invalidaccess rather than typecheck when
given a packed array.

[src/zarray.c]

2006-08-05T02:16:49.849366Z L. Peter Deutsch

When an error occurs within an operator procedure, arranges for the 'error
object' to be the pseudo-operator rather than the current interpreter
object, to mimic the behavior of primitive operators, for greater Adobe
compatibility.  This can be overridden locally for callouts such as from
filenameforall or resourceforall, using the new .errorexec operator.

[src/iconf.c src/interp.c src/opextern.h lib/gs_init.ps]

2006-08-04T22:48:53.701035Z L. Peter Deutsch

Adds braces around the body of the new return_with_error_tx_op macro, to
avoid an ambiguous 'else'.

[src/interp.c]

2006-08-04T21:43:08.671407Z Alex Cherepanov

Makes astore to a 0-length array valid regardless of the array access status.

[src/zarray.c]

2006-08-04T18:28:19.632057Z Alex Cherepanov

Makes roll operator generate stackunderflow rather than rangecheck when 
there's not enough elements on the stack.

[src/zstack.c]

2006-08-04T18:11:09.614818Z Alex Cherepanov

Makes index operator generate stackunderflow rather than rangecheck when 
there's no element on the stack pointed by the argument.

[src/zstack.c]

2006-08-04T17:29:08.193973Z Alex Cherepanov

Makes copy operator generate rangecheck rather than stackunderflow when given
a negative argument.

[src/zgeneric.c]

2006-08-04T16:55:18.531677Z L. Peter Deutsch

Makes the array operator return limitcheck rather than rangecheck if the
requested size is too large.

[src/zarray.c]

2006-08-04T15:46:34.786064Z L. Peter Deutsch

Makes packedarray generate stackunderflow rather than rangecheck when given
a too-large positive argument.

[src/zpacked.c]

2006-08-04T15:20:42.125769Z L. Peter Deutsch

Replaces relevant uses of index by .argindex, and adds a few other checks,
so that pseudo-operators will cause a stackunderflow rather than a
rangecheck when given too few arguments.  Only the following init files have
been modified: gs_{btokn,dps1,dps2,init,lev2}.ps -- many more require
updating.  However, since the only reason for this change is to satisfy the
Genoa test suite, further updates can be done as needed.

[lib/gs_dps1.ps src/zstack.c lib/gs_dps2.ps lib/gs_lev2.ps lib/gs_btokn.ps lib/gs_init.ps]

2006-08-04T14:07:13.211741Z Alex Cherepanov

Work around a bug in "MSVC .net 2005 express" CRTL, which doesn't support
"%+02d" format.

[src/iutil.c]

2006-08-04T04:22:48.633454Z Alex Cherepanov

Set the correct error object when special operators (x_add, etc.) fail.

DETAILS:
If control reaches the special operators (x_add, etc.) as a result of
interpreting an executable name, iref points to the name, not the
operator, so the name rather than the operator becomes the error object,
which is wrong.  We detect and handle this case explicitly when an error
occurs, so as not to slow down the non-error case.

[src/interp.c]

2006-08-04T04:08:45.729436Z Alex Cherepanov

Re-format the exponent in floating point numbers to satisfy Genoa CET test.

[src/iutil.c]

2006-08-03T05:43:28.564474Z L. Peter Deutsch

Fixes bug: several dictionary operators (known, undef, where) did not cause
a typecheck error if the 'key' argument was a null.

[src/idict.c src/zdict.c src/idict.h]

2006-08-03T05:10:23.146390Z L. Peter Deutsch

On Level >=2 systems, makes .undef a synonym for undef rather than vice
versa, to produce Adobe-compatible stack traces on errors.

[src/zdict.c lib/gs_dps1.ps]

2006-08-02T21:38:04.138968Z L. Peter Deutsch

Fixes eq and ne so that an array is never eq to a packedarray, even if both
have zero length.

[src/iutil.c]

2006-08-02T21:10:17.237822Z L. Peter Deutsch

On Level >=2 systems, makes .dicttomark a synonym for >> rather than vice
versa, to produce Adobe-compatible stack traces on errors.

[src/zdict.c lib/gs_lev2.ps]

2006-08-02T21:08:57.885732Z L. Peter Deutsch

Removes dpsnext from the default FEATURE_DEVS, since the presence of
deviceinfo creates an Adobe incompatibility in Genoa PS LL3 CET 20-23.

[src/Makefile.in]

2006-08-02T19:47:26.316967Z Dan Coby

Fix for 'invalid restore' in CET 09-47n.ps.

DETAILS:

The test file has a very bad call to the setpattern operator.
For this pattern, setpattern is expecting both the pattern dict and
a set of four color values.  None of the color values are present.
THe pattern color space processing logic was roling the stack to
verify that the color values are either integers or reals.  This
correctly produces an error.  However the stack was left disordered.
This resulted in the invalid restore since the pattern dict (local
memory) was still of the stack when the restore was executed.

Note:  The first attempt at a fix involved trying to use the procedure
check_num_stack (which is used by all of the other color spaces).
Instead of rolling the stack, a mark was placed and the color values
were copied to the top for check_num_stack.  If an error was detected
then a cleartomark was done.  This fails with the given test file since
there are marks in the stack where the color values should be.  Thus
the cleartomark did not clear to the proper mark.

The final solution involves sinply checking the type of the color values
inline instead of rolling the stack and using check_num_stack.

[lib/gs_patrn.ps]

2006-08-02T18:08:56.997894Z L. Peter Deutsch

Makes "(/) token" correctly return an empty name rather than causing a
syntaxerror.

[src/iscan.c]

2006-08-02T18:05:32.494329Z L. Peter Deutsch

Changes cvs for reals: '<int>e<expt>' is no longer changed to
'<int>.0e<expt>', and 0.0001 (a boundary case) now converts to '0.0001'
rather than '1.0e+04'.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE for
compatibility with Adobe interpreters.

[src/iutil.c]

2006-08-02T12:29:12.940833Z L. Peter Deutsch

Changes pathbbox from an operator procedure to an operator, in order to
match the stack trace (on an error) from Adobe interpreters (checked by the
Genoa CET).

[src/zpath1.c lib/gs_init.ps]

2006-08-02T04:35:45.952210Z L. Peter Deutsch

Pops arguments off the stack if an error occurs while interpreting a user
path (for Adobe compatibility); enforces the user path order requirements
(ucache must come first if at all, setbbox must come first or immediately
after ucache, setbbox is required).

[src/zupath.c]

2006-08-02T01:14:35.678026Z Alex Cherepanov

Make string operator error reprorting similar to Distiller's.

[src/zstring.c]

2006-08-02T00:47:25.925799Z Alex Cherepanov

Make putinterval operator error reprorting similar to Distiller's.

[src/zgeneric.c]

2006-08-01T22:43:34.939677Z Alex Cherepanov

Make get operator error reprorting similar to Distiller's.

[src/zgeneric.c]

2006-08-01T21:12:02.550966Z Alex Cherepanov

Make forall operator error reprorting similar to Distiller's.

[src/zgeneric.c]

2006-08-01T18:52:57.821971Z Alex Cherepanov

Make copy operator error reprorting similar to Distiller's.

[src/zgeneric.c]

2006-08-01T16:55:54.568960Z Alex Cherepanov

Make anchorsearch error reprorting compatible with Distiller.

[src/zstring.c]

2006-08-01T01:10:30.751173Z Ralph Giles

Require transparency support when building the graphics library.

DETAILS:

Prior to this change, Ghostscript would not build without translib.dev
because the ADDCOMP pdf14trans line in libs.dev, which defined the device
but did not pull in its implementation. Normally this happens through 
pdf.dev.

A better fix might be to move the pdf14trans line to pdf.dev and let
those needing transparency support outside of pdf add translib.dev
explicitly to FEATURE_DEVS.

[src/lib.mak]

2006-08-01T00:06:02.095465Z Ralph Giles

MD5 is required by the persistent cache implementation on unix. Add it to the platform dependency list.

[src/unix-aux.mak]

2006-07-31T18:49:16.317202Z Ralph Giles

Pass a 32-element string to cvrs in instances where the int could be more 
than 32 bits on some architectures. After a sketch by L. Peter Deutsch,
Closes bug 688794.

DETAILS:

An <int> in the Ghostscript ps interpreter is a C long, and so on 64 bit Linux, for example, it will be 64 bits, which in these instances require more than 8 characters for representation in hex. We use 32 characters (128 bits of hex) to be on the safe side.

The PLRM says the size of an int is implementation dependent. It can also be argued that it assumes this is 32 bits. In fact, one of the Genoa tests fails with longer ints. We choose to follow the clearest statement here, that the size is up to us.

[lib/pdf_font.ps lib/gs_ttf.ps]

2006-07-31T17:39:29.043892Z Ralph Giles

Remove the 'dosdefault' stamp file, whose creation causes problems on 
MS Windows 9X. Closes bug 688816.

[src/msvccmd.mak]

2006-07-31T02:39:25.938560Z L. Peter Deutsch

Makes gs match an apparent bug in Adobe interpreters, which cause an
invalidaccess error when 'exec'ing a noaccess literal (other than
dictionaries).  Fixes a "failure" in Genoa PS3 CET 24-09.

[src/zcontrol.c]

2006-07-31T02:38:14.326304Z L. Peter Deutsch

Makes gs match the behavior of Adobe interpreters, which allow executing
noaccess on a readonly or noaccess dictionary, even though Red Book 3 says
that changing the access of a read-only dictionary is not allowed.  Fixes a
"failure" in Genoa PS3 CET 24-09.

[src/ztype.c]

2006-07-28T06:22:57.072635Z leonardo

Fix (pdfwrite) : Incorrect image conversion with CompatibilityLevel=1.2 .

DETAILS :

Bug 688766 "Wrong graphics after ps2ps2 conversion."
Bug 688772 "Bad PDF generated with -dCompatibilityLevel=1.2"

Patch from SaGS.

1. pdf_begin_typed_image() did not synchronize the clipping path in some cases (gdevpdfi.c).
2. Delayed the synchronization for after checking the matrix singularity
   against writing an unuseful clipping before a skipped image. 
2. write_image_with_clip improiperly placed the 2nd and further subimages
   due to dropping the image's 'cm' with the subimage's 'Q'.
3. gx_image_enum_begin computed a wrong clipping box.
   In the new code pdf_setup_masked_image_converter installs
   a better get_clipping_box method, which is implemented 
   with the new function lcvd_get_clipping_box_shifted_from_mdev.
4. pdf_image3_make_mcde passed the clipping path to a memory device,
   which uses a different coordinate system. The new code does not
   pass the clipping path (gdevpdfi.c) and uses the device clipping box instead.

For more details see Bug 688766.

[src/gdevpdfx.h src/gdevpdfd.c src/gdevpdfi.c]

2006-07-28T01:23:29.511044Z Dan Coby

Fix for pages 4, 5, 13, 14 of the CET test file 12-02.ps.
This file creates colorimages with a size of zero.  The CET
expects that these colorimages will be ignored.

[lib/gs_img.ps]

2006-07-27T07:06:36.388322Z Dan Coby

Fix for segv in CET files 32-32.ps and 22-11.ps.  Both
files use binary object sequences with an object type of
'user name' however no user names have been defined.
The fix consists of checking for this situation and returning
an e_undefined error.  (The choice of error is because CPSI
also returns a 'undefined' error.

[src/iscanbin.c]

2006-07-27T01:15:59.601586Z Alex Cherepanov

Accept string values of page device, halftone, and rendering intent names.
PLRM specifies that all these values can be names or strings.
Bug 688776.

[lib/gs_lev2.ps]

2006-07-26T05:03:57.276453Z Dan Coby

Fix for CET test file 12-14c.ps.  This file was seg faulting.
The cause was some uniniitalized pointers that were being
freed when given invalid function parameters.  (The test file
was verifying the handling of invalid functions.)

[src/zfunc0.c]

2006-07-25T18:29:43.943994Z Ray Johnston

Fix CIDFontType 4 (FontType 32) handling so that read-only font dicts
can be used. Fixes PSLL3 CET 35-02.ps 'invalidaccess in -put-'.

[lib/gs_typ32.ps]

2006-07-23T19:25:14.174116Z Ralph Giles

Remove the requirement for HAVE_LONG_LONG to be defined before generating
ARCH_LOG2_SIZEOF_LONG_LONG. Since this was added, we've begun requiring
both signed and unsigned 64 bit types. Almost all platforms with a 64 bit
int provide long long, so this defaulting to on is a better approach.

We make an exception for MSVC which we support and which does not provide
'long long'. The requirement for a 64 bit type is taken care of by a matching
platform-specific #ifdef section in stdint_.h.

To add support for other such platforms, add another platform option to this
#ifdef and a corresponding section to stdint_.h.

Bug 688805 for customer 613.

[src/genarch.c]

2006-07-21T20:48:22.048908Z Ray Johnston

Add in aliases for glyphs that have the same Unicode value in the Adobe
Glyph List version 2.0. If both names are defined (presumably unique)
don't change them. If either name is known, make the other name an alias.
Bug 688799 and 688800 for customer 130.

[lib/gs_ttf.ps]

2006-07-20T22:35:31.758145Z Raph Levien

Finishes implementation of LeadingEdge parameter, primarily intended for
rotating pages to fit paper tray orientation. The LeadingEdge parameter
is an Adobe-defined setpagedevice parameter, and can be set by 
PostScript code for explicit control over rotation, or can be set by the
device to reflect device knowledge of the tray orientation (the 
mechanism for the latter is documented in Drivers.htm). This patch
completely replaces the old TrayOrientation parameter, which had similar 
goals but was not standard, and fixes some problems with that 
implementation.

[src/gsdparam.c src/gdevdflt.c doc/Drivers.htm src/gxdevice.h doc/Language.htm lib/gs_setpd.ps src/gsdevice.c src/gxdevcli.h]

2006-07-20T19:18:25.263338Z leonardo

Fix : Cygwin/gcc warned unuseful variables.

[src/zfont0.c src/zbfont.c src/gdevpdfg.c]

2006-07-20T18:57:07.315529Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 28.

DETAILS :

Disable a debug-purpose code, which unintentionally left in the last patch.

[src/fapiufst.c]

2006-07-20T18:50:28.389414Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 27.

DETAILS :

Provide a static list of FCO handles,
which are useful for a multilanguage embedded systems.

We define a storage for 2 handles because currently we need only 2 ones -
one for Windings and another for all other fonts.
FCO plugin does not go to this list, because it
doesn't define a font.

[src/lib.mak src/fapiufst.c src/gxfapiu.c src/gxfapiu.h]

2006-07-20T06:45:50.863988Z Ray Johnston

Establish alias glyph names (instead of replacement names) for example
Ldotaccent as an alias for Ldot. Bug 688799 for customer 130.
--this line, and those below, will be ignored--

m    gs_ttf.ps

[lib/gs_ttf.ps]

2006-07-19T22:52:24.858615Z Dan Coby

Fix for 688788 /rangecheck in resolveR.

DETAILS:

The file is damaged and has to have it xref table rebuilt.

Ralph Giles correctly guessed the cause of the problem
with his comment:
  "The file is corrupted by the addition of a leading
   newline; after removing the initial '0x0d 0x0a'
   character sequence the file renders fine. This offset
   is apparently confusing the xref table repair."

We have a value called PDFoffset which indicates the amount
of white space at the beginning of a file.  This value is
added to all xref table entry file locations when they are
referenced.  The xref rebuild logic was creating xref
locations which give the file position without considering
the value of PDFoffset.  The fix consists of simply subtracting
the values of PDFoffset from the xref object locations when
the xref tables are rebuilt.

[lib/pdf_rbld.ps]

2006-07-19T22:38:15.499527Z Dan Coby

Fix for 688787 /undefined in /BXlevel.

DETAILS:

The given test file has definite problems.  Most of the
xref entries are off by one byte.  Several of the xref
entries are off by thousands of bytes.  However the worst
problem is the value given for startxref.  This value
is off by tens of thousands of bytes.

The xref rebuild logic needs to find the final trailer
dictionary.  It uses the startxref value to find this
dictionary.  Since the file is damaged the rebuild logic
does not simply assume that the trailer dictionary is at
the given location.  Instead this logic compares ithe value
to the size of the file.  If less than one half of the size
of the file then we search at the beginning of the file.
This generally works for 'linearized' PDF files.  Othewise
the rebuild logic search for the last trailer dict in the
file.  This works for most non linearized files.

This file indicates that the trailer dict should be at
the start of the file.  However the trailer dict is at
the end of the file.  The fix consists of searching at
the end of the file when a trailer dict is not found at
the start of a file.

[lib/pdf_rbld.ps]

2006-07-17T19:11:34.040541Z leonardo

Fix (pdfwrite) : Support OS/2 table version 2 in True Type fonts.

DETASILS :

We don't use the new fields in the 96-byte structure and continue to
create 86-byre structures. The extra space is used as a buffer when
we copy the structure intact.

Bug 688536 "/invalidfont in --show-- when trying to convert the PDF file".
Patch from Alex with an improvement against regressions.

[src/gxttf.h src/gdevpsft.c]

2006-07-13T21:35:15.090210Z leonardo

Fix (pdfwrite) : A further improvement for the text rotation logic.

DETASILS :

Bug 688793 "document pages rotated with Ghostscript, not with Acrobat"

This patch implements Raph's suggestion how I understand it.

[beg quote]
There are two issues here. First, the document-global viewing_orientation info
isn't being copied into the page-specific info. [skipped]

Second, when the inferred text rotation and the dsc orientation can't match
(i.e. are off by an odd multiple of 90 degrees), precedence is given to the text
rotation. [skipped]

[Skipped] reverse the precedence so that if
both dsc orientation is set and text rotation is inferred, use the dsc value.
[end quote]

See the bug 688793 for more details.

I marked the change with Bug688793 macro
because I can't say that I fully foresee its consequences.
The mark will help to analyze problems if any appear.

[src/gdevpdf.c]

2006-07-13T12:37:03.107591Z leonardo

Fix : MSVC8 compiler warnings.

[src/ziodevsc.c]

2006-07-13T12:25:38.449013Z leonardo

Fix (True Type font loader) : A wrong encoding created when no 'post' presents.

DETAILS :

Bug 688789 "incorrect encoding displayed using ArialUnicodeMS".

The old code in .charkeys computes (with dropping minor details) :
    CharStrings = glyphencoding^-1
    Encoding = cmap*glyphencoding

It is correct when 'post' presents due to glyphencoding = post,  
and post maps glyph indices to glyph names.

In the test case (with no 'post') .charkeys must compute (with dropping same details) :
    CharStrings = glyphencoding^-1 * cmap
    Encoding = glyphencoding
because glyphencoding is stubbed with an encoding.

I'm not sure why the old code worked so long with no problem.
Likely every font manufacturers loved to define 'post'.
Now we got one which doesn't.

BTW, I guess an useful optimization would be to replace 'numloca'
with a better estimation. In the test case it appears too big,
so we process a huge trash and then drop it.
The better estimation, the smaller time consumption.

Another useful optimization is marked with
"% a stub for a while. Must skip the entry."
in the new code. Dalaying it for better times.

Inserted a debug printing for CharStrings.
Using it one can se how big trash it processes.

The old code truncates Encoding if it is longer than 'loca'.
It appears wrong with the new CharString composition logics
- creates a tool short Encoding for fonmts in bug_687457.pdf .
The truncation has been removed from .charkeys .
It should work fine because recently we improved
C code about acessing glyphs outside 'loca' -
see the revision 6874.

The test case to be added to comparefiles.

[lib/gs_ttf.ps]

2006-07-13T05:38:11.096275Z Dan Coby

Remove a mixture of DOS and Unix style line endings.

[src/gsnamecl.c]

2006-07-13T01:16:11.812282Z Ray Johnston

Remove (now) superfluous stdout_buf and stderr_buf areas from main instance
(no longer needed -- buffers are allocated when stdio is opened).

[src/iminst.h]

2006-07-12T21:46:07.133984Z Ray Johnston

Clean up some gcc warnings created by last commit.

[src/imain.c src/sfxstdio.c src/zfproc.c src/ziodevsc.c]

2006-07-12T21:30:00.448371Z Ray Johnston

Change stdio callback mechanism to call directly from the stream processing
function, not requiring a CALLC callout all the way back through the interp
to 'imain.c' This simplifies some of the calling and is more efficient.

DETAILS:

gsapi_ and/or gsdll_ clients will see no difference.

[src/imain.c src/interp.c src/zfileio.c src/zfproc.c src/ziodevs.c src/ziodevsc.c src/files.h src/iminst.h src/ierrors.h]

2006-07-12T21:24:01.592491Z Ray Johnston

Refactor 'file_prepare_stream' for use by non-PS (graphics library only)
clients such as gsiorom (the %rom% device can be used by non-PS builds).

[src/sfxstdio.c src/zfile.c]

2006-07-12T21:19:34.152242Z Ray Johnston

Header file missed on previous commit to refactor 'file_prepare_stream'
for use by graphics library (no PS interpreter) clients (gsiorom.c).

[src/stream.h]

2006-07-12T21:15:11.292479Z Ray Johnston

Get rid of deprecated %static% device. This has been replaced by the more
efficient and versatile %rom% device.

[src/int.mak src/ziodevst.c]

2006-07-12T17:59:16.470870Z leonardo

Fix (pdfwrite) : More PDF/A-1b complience, continued 6.

DETAILS :

Bug 688783 "commit 6892 mis-uses the TZ environmental".

Completely removed the time zone computation because
it's not working properly with some compilers.
Always write the UTC time instead.
It looks compliant with all PDF/A, PDF 1.6, ANSI C and 
http://www.w3.org/TR/NOTE-datetime standards.

[src/gdevpdf.c]

2006-07-12T12:24:10.438308Z leonardo

Fix (pdfwrite) : More PDF/A-1b complience, continued 5.

DETAILS :

Bug 688783 "commit 6892 mis-uses the TZ environmental".

An improved code with using CRTL functions to compute the tize zone.
This works on both my local Windows and on Linux on peeves.

[src/gdevpdf.c]

2006-07-12T11:26:28.547453Z leonardo

Fix (pdfwrite) : More PDF/A-1b complience, continued 4.

DETAILS :

Bug 688783 "commit 6892 mis-uses the TZ environmental".

An improved code with using CRTL functions to compute the tize zone.
Thanks to SaGS for suggestion.

[src/gdevpdf.c]

2006-07-11T21:32:55.057296Z leonardo

Fix (pdfwrite) : More PDF/A-1b complience, continued 3.

DETAILS :

Bug 688742 "PDF/A label missing error in Acrobat preflight", part 2.
Bug 688783 "commit 6892 mis-uses the TZ environmental".

Use CRTL functions to compute the tize zone.
Thanks to SaGS for suggestion.

[src/gdevpdf.c doc/Ps2pdf.htm src/devs.mak]

2006-07-10T11:00:18.723002Z Tor Andersson

remove the null memory context argument to errprintf in gs_throw_imp that was accidentally left in from when the function was ported over from ghostpcl.

[src/gsmisc.c]

2006-07-09T14:04:23.380577Z Ralph Giles

Compile in read support when building libpng. It is needed for XPS 
parsing.

[src/libpng.mak]

2006-07-07T17:22:51.824275Z Ray Johnston

Fix gcc reported problems.

[src/mkromfs.c]

2006-07-07T00:26:45.026656Z Ray Johnston

Correct typo in header that MSVC ignores.

[src/files.h]

2006-07-06T23:59:24.561744Z Ray Johnston

Fix missed edit to remove RESOURCE_LIST from top makefiles.

[src/msvclib.mak]

2006-07-06T21:32:50.019697Z Ray Johnston

Several %rom% related improvements. Add PSRESDIR macro to define the location
of the Resource/ path during the build. Remove the RESOURCE_LIST from the top
level makefiles (list now only in src/int.mak). Correct the font path to the
Adobe standard Resource/Font. Change the GS_LIB_DEFAULT to include Resource/Font
rather than the useless Resource path.

Change the %rom% device to return a custom 'block' stream that decompresses
by blocks into the buffer so that the entire file is never decompressed into
a 'string' for a sread_string type stream. The 'file_prepare_stream' is now
exported for use by gsiorom.c.

DETAILS:

That wasn't enough ?

One hack is that the s->file pointer in the stream_s is used to hold the pointer
to the node header in the %rom% file system. This seemed to make some sense.
Unlike the FILE * structure (which is somewhat opaque), there is no dynamic
state info in a node -- the s->position and read pointer within cbuf are enough
to allow read_process, seek, and available procs to operate.

The buffer is slighty larger than the ROMFS_BLOCKSIZE to allow for some data
(up to 256 bytes) not being consumed from the buffer when read_process is
used to refill the buffer. This way we can decompress directly into the cbuf
(at the correct point, of course) and avoid another buffer and copy. This
also means that each 'block' is always at or near the front of cbuf. After
a seek, the block will load at the beginning of cbuf (assuming we did not
already have the requested pos in the buffer).

As with 'file' type streams, the s->read_id is bumped so that the stream
access functions will see the file as 'invalid' (read_id won't match rsize).
The cbuf is also freed when the file is closed (to prevent leaks in a non
GC memory system).

NOTE: IT IS THE CALLER'S RESPONSIBILITY TO FREE THE STREAM RETURNED BY THE
romfs_open_file() function using the memory in the s->memory allocator. In
PostScript, since the -file- ref can be passed around among objects, the
GC is relied upon to free when no further references exist.

[src/gsiorom.c src/watcw32.mak src/macosx.mak src/int.mak src/dvx-gcc.mak src/unixansi.mak src/msvclib.mak src/os2.mak src/bcwin32.mak src/ugcclib.mak src/unix-gcc.mak src/msvc32.mak src/macos-mcp.mak src/files.h src/zfile.c src/watclib.mak]

2006-07-06T17:12:15.527898Z Stefan Kemper

Fix null ptr dereference committed on rev 6866

DETAILS:

In the case where gx_alloc_char_bits is called with a null
device pointer the default of 72 dpi is used.

[src/gxccman.c]

2006-07-06T11:10:42.178658Z Alex Cherepanov

Replace empty MediaBox or CropBox box with a box that is equal to the current
page size. Bug 688744, customer 384.

[lib/pdf_main.ps]

2006-07-06T00:24:31.497014Z Alex Cherepanov

Modify cmap table handling routines to support a large ( >= 64K ) table
represented as an array of strings.
Bug 688688, customer 562.

[lib/gs_ttf.ps]

2006-07-05T21:06:53.575845Z leonardo

Fix (pdfwrite) : More PDF/A-1b complience, continued 2.

DETAILS :

Bug 688742 "PDF/A label missing error in Acrobat preflight", part 4.

This is an experimental patch, which drops the setting of
the symbolic flag for fonts in PDF/A documents.
Doing so because the Acrobat preflight tool 
doesn't allow Encoding for symbolic True Type fonts.

The decision for setting the symbolic flag for most fonts has been
done a long ago, and currently we cannot reconstruct all the related history.
We suspect that in novadays that decision appears obsolete.
We commit this patch to allow an accumulation of information
about how this flag affects 3d party software.

[src/gdevpdtd.c src/gdevpdtd.h]

2006-07-05T20:28:10.067306Z leonardo

Fix (pdfwrite) : More PDF/A-1b complience, continued.

DETAILS :

Bug 688742 "PDF/A label missing error in Acrobat preflight", part 3.

1. Substitute the DeviceRGB color space.
2. Write the instance ID into the pdfaid item.
3. /Type/Metadata/Subtype/XML is required for metadata stream dictionary.

[lib/gs_devcs.ps src/gdevpdfe.c]

2006-07-05T18:17:52.450829Z Alex Cherepanov

Use /PageSize from the currrent page device dictionary when the /MediaBox pget
fails. Bug 688771, customer 581.

[lib/pdf_main.ps]

2006-07-05T14:03:49.473556Z leonardo

Fix (pdfwrite) : More PDF/A-1b complience.

DETAILS :

Bug 688742 "PDF/A label missing error in Acrobat preflight", part 2.

1. Always embed all fonts when writing a PDF/A document.
2. Provide a precize time and time zone (see the documentation change included).
3. Wrtte an OutputConditionIdentifier.
   
See the documentation change for details.

[src/gdevpdf.c doc/Ps2pdf.htm src/gdevpdtf.c src/gdevpdfe.c lib/PDFA_def.ps src/devs.mak]

2006-07-05T10:26:03.786036Z leonardo

Fix (pdfwrite) : Write out the PDF/A compliance label.

DETAILS :

Bug 688742 "PDF/A label missing error in Acrobat preflight".
Patch from Eduard Tiganas.

[src/gdevpdfe.c]

2006-07-04T23:13:13.666885Z Ralph Giles

Modularize the soname and link flags for the unix shared library build
to facilitate use on different platforms.

[src/unix-dll.mak]

2006-07-04T21:31:43.405686Z Alex Cherepanov

Increase the operand stack size limit to the current working maximum = 65414.
Bug 688764.

DETAILS:
PostScript stack cannot exceed the size of a PostScript array (65535) because
the stack is copied to an array when the stack overflows.

The stack space is allocated in blocks. The stack overflow is checked when the
new block is allocated. If the MaxOpStack is set close enough to 65535 the
actual stack size exceeds 65535 at the moment of stack overflow.

This condition is detected when the stack is copied to an array during
stackoverflow processing, causing a low level stack dump.

[lib/gs_init.ps]

2006-07-02T11:50:18.654475Z Alex Cherepanov

Fix calculation of the index in the DecodeDEF[G] table. The old code rendered
wildly different colors when the range of RangeDEF[G] was not close to 1.
Bug 688763.

[src/gsciemap.c]

2006-07-01T15:08:30.368356Z Ray Johnston

Replace $Id lines inadvertently removed.

[src/imain.c src/zfile.c]

2006-06-30T20:00:21.389005Z Ray Johnston

Changes to make the JOBSERVER and exitserver operate correctly. This is
essential to proper CET and FTS execution.

DETAILS:

The primary changes to allow exitserver to work from files, stdin, strings
and executive mode were making sure that the strings, procedures and
files (or subfildecode filters) were all in "system vm" which is always
a 'stable' memory immune from save/restore (curing the /invalidrestore
errors previously seen). To support executive mode, the statementedit
and lineedit IODevices always allocate in system VM (imemory_system) as
well.

Also changed was to omit the grestoreall in .startnewjob after the
restore since this would go back to the previous 'null' device and
close the device we want (e.g. x11 or display).

This relates to bug 688312, which I will close after determining if
there is any other documentation needed. Also this fixes #201952 which
was previously closed as WONTFIX.

Note that with -dJOBSERVER Ghostscript (unlike ghostpcl) will run the
-c string or the files on the command line or the input to the GS>
prompt as an encapsulated job and multiple files on the command line
will NOT be treated as separate jobs. File that contain a ^D (0x04)
at the end _WILL_ restore the VM state and start a new encapsulated
job for subsequent interpreter actions.

To run an inital file in 'exitserver' mode (affecting the permanent
server state), the -c "true 0 startjob pop" -f can be used prior to
the file. To run files as individual encapsulated jobs (when it is
not known if the job ends with ^D) simply add a file that contains
a ^D between each job on the command line. For example, if '04' is
a file that contains a ^D:

gs -dJOBSERVER x.ps 04 y.ps 04 z.ps -c "true 0 startjob quit"

Also note above that since 'quit' is defined as 'stop' in order to
actually quit you have to go to exitserver mode first (true 0 startjob)
or use the -dBATCH option.

[src/imain.c src/zfilter.c lib/gs_lev2.ps src/ziodev.c src/opextern.h src/zdevice.c src/zfile.c lib/gs_init.ps src/zsysvm.c]

2006-06-30T19:14:40.807461Z Ray Johnston

Clean up memory when the gsapi_delete_instance is called. Prevents leaks
from repeated invocations of ghostscript gsapi_ instances. Bug 688181.

[src/iapi.c]

2006-06-29T04:25:55.982235Z Alex Cherepanov

Add support of AdjustWidth parameter to tiffg32d and tiffg4 devices.
Bug 688748.

DETAILS:
According to Devices.htm, all black-and-white TIFF devices support AdjustWidth
parameter, but tiffg32d and tiffg4 didn't, always adjusting the page size.
The user had no way to switch off this, possibly undesired, feature.

[doc/Devices.htm src/gdevtfax.c]

2006-06-29T04:07:16.134871Z Alex Cherepanov

Add embedded OpenType support to the PDF interpreter.
Bug 688729, customer 700.

DETAILS:
According to the OpenType specification, OTTO tag is used only when the font
file has CFF data. We need to add more checking if we encounter OTTO fonts with
TTF data.

[lib/pdf_font.ps lib/gs_cff.ps]

2006-06-28T20:24:34.110786Z leonardo

Fix (pdfwrite) : Improve the filter choice logic.

DETAILS :

Bug 688773 "/JPXEncode always used when -dCompatibilityLevel=1.5".

"[Color|Gray|]AutoFilterStrategy = /JPEG2000" applied when 
"AutoFilter[Color|Gray]Images == false".

[src/gdevpsdi.c]

2006-06-28T16:29:52.237586Z leonardo

Fix (pdfwrite) : Luratech filters must not apply to indexed images.

DETAILS :

1. The old code erroneusely sets up the image compression chooser
   for Indexed images (gdevpdfi.c).

2. Don't allow the lossless JPXEncode for indexed images (gdevpsdi.c).
   (This change has no effect with no Luratech).

[src/gdevpsdi.c src/gdevpdfi.c]

2006-06-28T09:57:13.290010Z leonardo

Fix (TT font loader) : Work around a wrong specificID.

DETAILS :

The test document includes a name record with platformID=3, specificID=768.
We could not find a dicument, which allows such combination,
and we believe it is incorrect.
This patch implements a general workaround for strings,
which consist of 2-byte characters, each of which has a zero leading byte.

Bug 688769 "pdfwrite : an Incorrect embedded font object".

[lib/gs_ttf.ps]

2006-06-28T00:45:47.790609Z leonardo

Fix (pdfwrite) : Preserve ToUnicode for Type 0 fonts when re-distilling a PDF.

DETAILS :

The old code didn't account ToUnicode CMaps of Type 0 fonts in PDF documents :
1. It attached GlyphNames2Unicode after defonefont happens, so that C code never got it.
2. gdevpdtc.c didn't check Type 0 fonts for GlyphNames2Unicode.

The fix consists of 2 parts :
1. The new code in gs/lib factors out an auxiliary function .composefontdict from composefont .
   That function is called before .processToUnicode in pdf_font.ps for Type 0 font.
2. The new code in gs/src factors out the new function get_GlyphNames2Unicode,
   which now works for Type 0 fonts also. The change to gdevpdtc.c
   checks whether a Type 0 fonts has GlyphNames2Unicode.
   If a Type 0 font has GlyphNames2Unicode, it comes from a PDF, 
   and thus descendent fonts have no GlyphNames2Unicode.

Minor change : Don't search Resource/Decoding/Unicode for CIDs
when composing a ToUnicode CMap, because that resource translates glyph names only.

Bug 688768 "pdfwrite: missing ToUnicode".

[src/bfont.h lib/pdf_font.ps src/gdevpdtc.c src/zfont0.c src/zbfont.c lib/gs_cmap.ps]

2006-06-27T18:05:59.082925Z leonardo

Fix (pdfwrite) : Don't create a group from an image with SMask.

DETAILS :

An image with SMask is implemented in the PDF interpreter with creating a
temporary internal transparency group (see doimagesmask in pdf_draw.ps).
The old code copyed that group to the PDF output when re-distilling a PDF.

This patch implements the new key .image_with_SMask
for the .begintransparencygroup dictionary operand for
designating the internal group, and the flags :
	gx_device_pdf_s::image_with_SMask
	gs_transparency_group_params_s::image_with_SMask
	gs_pdf14trans_params_s::image_with_SMask
for passing this info to gdevpdft.c .

Bug 688767 "pdfwrite: bad transparency group".

[src/gdevpdfx.h src/gstrans.c src/ztrans.c src/gdevpdft.c src/gstparam.h lib/pdf_draw.ps src/gdevpdfb.h src/gstrans.h]

2006-06-26T17:57:55.566936Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 27.

DETAILS :

Fix the FreeType bridge to compile with the new FAPI interface definition.

[src/int.mak src/fapi_ft.c]

2006-06-26T17:01:42.828008Z leonardo

Fix (pdfwrite) : Improve the documentation about generating a PDFX document.

DETAILS :

Fixes the part of the bug
688463 "Overprint can not render with with -dUseCIEColor",
which is related to PDFX (the comment #11).

[doc/Ps2pdf.htm]

2006-06-23T19:15:03.500541Z Ray Johnston

Substantial performance improvement on Windows platforms to
JPEG2000/JPXDecode filter made by making jasper 'seek' work
within the buffer.  Bug 688073 and 688758 for customer #531.

DETAILS:

This wasn't a very big change, but by avoiding going to the OS
for 'seek' operations, the Windoze performance was improved
>40 fold. On linux this doesn't make any improvement but the
OS must be a lot more efficient (I'm actually surprised by
this). The time for the customer file with 688758 runs in
10 seconds (at 40dpi x11) on peeves before and after the fix.
On my Windoze 2.8Ghz P4 (peeves is 3.2GHz P4) the time is
43 seconds after the fix.

[jasper/src/libjasper/base/jas_stream.c jasper/src/libjasper/include/jasper/jas_stream.h]

2006-06-21T22:33:35.061227Z leonardo

Fix (CIDFontType 1) : Check for GDBytes elements to point past the 'loca' table end.

DETAILS :

Bug 688669 "/invalidfont in --@0x100194e0--".

The old code didn't check GDBytes consistency, taking occasional data
past the 'loca' table with an occasional result.

Note that the change to z11_CIDMap_proc in zfcid1.c trows exception,
which is handled by the procedure %Type11BuildGlyph
in gs_cidfn.ps with substituting .notdef .

The test document embeds an incorrect True Type data for the font OBMKGG+H2gtrM. 
The True Type header specifies the size of 'loca' table equals to 12 bytes. 
In the sfnts array it is a separate string with the array index 2.
Then it renders the glyph index 3 accessing outside the loca table. 
It hapens while rendering the text :

/TT5 1 Tf
0.365 0 TD
<0001>Tj

Probably the problem happens because 2 font descriptors (43 0 obj and 38 0 obj, 
which correspond to local font names /TT4 and /TT5) refer to same single font data 39 0 obj. 
This data is an embedded font subset, which is enough for /TT4 and has no 
glyphs for /TT5. This problem to be reported to Adobe Distiler 6, 
which created the test document. Is the version 7 better ?
(can't check due to no Postscript source).

In the test case .notdef is the CID 0 and defined in the font as a hollow box.
Don't know why Adobe doesn't print it in the test document.
That's another story. The font doesn't define a space character.

[src/zfcid1.c src/gstype42.c]

2006-06-21T11:17:27.414299Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 26.

DETAILS :

Provide a locking of a global static UFST instance
for a multilanguage embedded systems.

[src/fapiufst.c src/gxfapiu.c src/gxfapiu.h]

2006-06-20T17:16:59.040107Z leonardo

Fix (FAPI Font resource, CIDFont emulation) : Relative paths with FAPIconfig-FCO.

DETAILS :

Set current directory as a font file search origin.

[lib/FAPIconfig-FCO]

2006-06-20T16:55:22.666128Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 25.

DETAILS :

Provide the configuration with no Type 1 and no True Type parsers
for a compatibility with the PCL build.

[src/fapiufst.c]

2006-06-20T16:31:15.616110Z leonardo

Fix (UFST resource handling) : Provide an uniform way for specifying FAPI font map and configuration.

DETAILS :

1. The new command line argument FAPIfontmap specifies a FAPI font map file.
   The old argument FCOmap has been removed. 

2. The new command line argument FAPIcidfmap specifies a FAPI font map file.
   The old code hardcoded a particular value.

3. FAPIfontmap may include both general records, and special record groups for
   describing FCO elements. 
   
See the documentation change for details.

[lib/FCOfontmap-PCLPS3 lib/FCOfontmap-PS3 doc/Use.htm doc/Develop.htm lib/FAPIfontmap lib/FAPIconfig lib/gs_fapi.ps lib/FAPIconfig-FCO lib/FCOfontmap-PCLPS2]

2006-06-20T15:04:05.008037Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 24.

DETAILS :

Remove dead development branches.

[src/fapiufst.c]

2006-06-20T14:49:58.556233Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 23.

DETAILS :

Account the replaced Mrtrics when the renderer can't handle it.
It was a real bug in the FAPI client.

[src/zfapi.c]

2006-06-20T12:35:33.822923Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 22.

DETAILS :

Implementing the design bounding box expansion and warnings
against cropping glyphs when caching.

[src/ifapi.h src/fapiufst.c src/zfapi.c]

2006-06-20T09:51:08.611471Z leonardo

Fix (FAPI) : The cache device had a wrong HWResolution.

DETAILS :

It was set to 72 dpi independently on the target device.
Ghostscript font renderer doesn't rely on it, but UFST does.
Due to that UFST generated different rasters with and without NOCACHE.

[src/gxchar.c src/gxccman.c]

2006-06-20T09:46:21.713177Z leonardo

Fix (FAPI Font resource, CIDFont emulation) : Always convert FontName into a name (continued).

DETAILS :

The last patch appears incomplete.

[lib/gs_fntem.ps]

2006-06-20T09:37:23.049325Z leonardo

Fix (FAPI Font resource, CIDFont emulation) : Always convert FontName into a name.

DETAILS :

The old code could create fonts with a string as the FontName or CIDFontName value.
It caused an invalidaccess when the string is local and the font dictionary is global.
Debugged with alphabet.ps .

[lib/gs_fntem.ps]

2006-06-20T08:48:27.280806Z leonardo

Fix (FAPI Font resource, CIDFont emulation) : Load resident fonts into global VM (continued).

DETAILS :

The last patch appears incorrect in the part 3 :
[beg quote]
3. A minor change in gs_type1.ps creates FontInfo in same VM
   where the font dictionary resides. 
[ebnd quote]
and caused pdfwrite regressions.

This path fixes that.

[lib/gs_type1.ps]

2006-06-19T01:36:39.845267Z leonardo

Fix (FAPI Font resource, CIDFont emulation) : Load resident fonts into global VM.

DETAILS :

1. MakeInstance creates instances in global VM.

2. A bug in gs_fntem.ps : accessed "1 index" instead "0 index".
   Apparently they were always equal. Now they are not.

3. A minor change in gs_type1.ps creates FontInfo in same VM
   where the font dictionary resides. 

Debugged with 129-01.ps .

[lib/gs_cidtt.ps lib/gs_fntem.ps lib/gs_fapi.ps lib/gs_type1.ps]

2006-06-18T23:40:16.946225Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 21.

DETAILS :

A bug in the FAPI client :
Truncate the "~GS~" suffix, which the PDF interpreter adds
when creating extended glyph names.

Debugged with ADOBE1-4.pdf .

[src/zfapi.c]

2006-06-18T21:38:33.730811Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 20.

DETAILS :

An UFST bug tolerance about the .nmotdef appearence.
See comment in code.

[src/fapiufst.c]

2006-06-18T20:03:50.504209Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 19.

DETAILS :

An UFST bug tolerance about the hollow box design scale.

[src/fapiufst.c]

2006-06-18T19:25:03.018019Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 18a.

DETAILS :

Adjust symbolic Decodings with UFST 5.0 specifics.

[Resource/Decoding/FCO_Dingbats Resource/Decoding/FCO_Symbol Resource/Decoding/FCO_Wingdings]

2006-06-15T20:52:37.321465Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 18.

DETAILS :

1. Outline fonts ignored Stroke Width ( a real bug in the FAPI client code ).
2. Fixing missed pixels in outline fonts.

[src/fapiufst.c src/zfapi.c]

2006-06-15T10:41:20.991984Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 17.

DETAILS :

Provide the UFST callback dispatching for the language switching project.
See comment in code.

Actually thois restores the old gxfapi.c (which was recently removed) 
with minor modifications, and the module name is changed
for a better reflection of the purpose.

[src/lib.mak src/int.mak src/fapiufst.c doc/Develop.htm src/gxfapiu.c src/gxfapiu.h]

2006-06-14T21:03:34.912427Z Ralph Giles

Turn on Id keyword substitution and native line endings.

[lib/winmaps.ps]

2006-06-14T09:41:33.338945Z leonardo

Fix (UFST resource handling) : Provide alternative FCO map files. 

DETAILS :

1. The new command line argument FCOmap specifies an FCO map file.
   The old code hardcoded FCOfontmap.

2. Addint new FCO map files FCOfontmap-PCLPS2, FCOfontmap-PCLPS3, FCOfontmap-PS3
   for various FCO files. The old file FCOfontmap to be removed.

3. The new command line argument FCOfontfile2 works for locating the Wingdings FCO file.

[doc/Develop.htm]

2006-06-14T09:35:49.305252Z leonardo

Fix (UFST resource handling) : Provide alternative FCO map files. 

DETAILS :

1. The new command line argument FCOmap specifies an FCO map file.
   The old code hardcoded FCOfontmap.

2. Addint new FCO map files FCOfontmap-PCLPS2, FCOfontmap-PCLPS3, FCOfontmap-PS3
   for various FCO files. The old file FCOfontmap to be removed.

3. The new command line argument FCOfontfile2 works for locating the Wingdings FCO file.

[lib/FCOfontmap-PCLPS3 lib/FCOfontmap-PS3 doc/Use.htm lib/gs_fapi.ps lib/FCOfontmap lib/FCOfontmap-PCLPS2]

2006-06-14T08:25:03.916153Z leonardo

Fix (FAPI) : Implement a lazy font object acquisition, part 2.

DETAILS :

The old code creates a font object per character
due to a complex protocol of gs_show_enum.
Rather font renderers usually cache font objects,
the data format accommodation appears too expensive.

Main change : 
1. FAPI_do_char uses I->face to check whether
   it is same font-matrix request as for a previous call.
   If so, it uses the old font object stored in the renderer.

Minor changes :
2. enum FAPI_descendant_code_s is defined for clarity instead an int type.
3. Interface functions drop the subfont and bVertical operands.
   They are moved into FAPI_font structure, which was passed by 
   a neighbour argument.
4. The new function release_typeface takes care for a complete cleanup
   in a single code portion.

[src/ifapi.h src/fapiufst.c src/fapi_ft.c src/zfapi.c]

2006-06-14T05:03:07.378642Z leonardo

Fix (FAPI) : Implement a lazy font object acquisition, part 1.

DETAILS :

The old code creates a font object per character
due to a complex protocol of gs_show_enum.
Rather font renderers usually cache font objects,
the data format accommodation appears too expensive.

This change is algorithmically equivalent.
It moves necessary data to the renderer interface structure,
so that it may be useful for lazy font object creation.

The new structure FAPI_face stores a "key" for
requesting a font-matrix pair from a renderer.
It is reserved for further improvements.

[src/ifapi.h src/int.mak src/fapiufst.c src/fapi_ft.c src/zfapi.c]

2006-06-14T02:12:47.303815Z Alex Cherepanov

Use more aggressive PDF identification. Consider PDF every file that has
"%PDF-1." not preceeded by "%!PS" in the first 127 bytes of the file.
Bug 688743.

[lib/pdf_main.ps]

2006-06-14T00:23:19.323225Z Alex Cherepanov

Fix broken definition of customcolorimage.
Bug 688750.

[lib/gs_lev2.ps]

2006-06-13T17:01:52.331288Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 16.

DETAILS :

Provide a working mode with no *.ss files and/or with no FCO plugin.

[src/fapiufst.c]

2006-06-12T22:07:57.059825Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 15.

DETAILS :

Fixed file paths on Linux.

[src/fapiufst.c src/zfapi.c]

2006-06-08T17:59:04.960338Z Ray Johnston

Add code in getencoding to accept an array for the Encoding in a Font dict.
Only a name or dictionary are legal PDF. Bug 688741.

DETAILS:

Adobe Acrobat Reader lists "Encoding: Standard" for this font, but we get
the correct results by using the Encoding array given in the font.

[lib/pdf_font.ps]

2006-06-08T01:46:13.481025Z Alex Cherepanov

Fix string overflow in cvrs on 64-bit systems. Suppress the sign expansion of
unique ID. Bug 688725.

[lib/gs_ttf.ps]

2006-06-08T01:26:36.293278Z Alex Cherepanov

Make the pointer the last element of gs_pixel_image_t structure.
Otherwise, on LP64 platforms, the padding at the end of the structure
overwrites the 1st member of the derived structure when the base structure
is assigned to the derived structure.
Bugs 613909, 688725.

[src/gximage3.c src/gsiparam.h]

2006-06-07T19:20:14.417139Z Ray Johnston

Fix handling of TrueType fonts with a large number of glyphs in the 'post'
table. Bug 688723 for customer number #130.

DETAILS:

First, avoid using the 'postfirst' string to scan the post table.
Second, avoid putting a large array on the op stack when building
the 'postnames' and 'glyphencoding' arrays (pre allocate them and
simply 'put' the values in). Third, don't create dummy names for
.notdef glyphs when building up the CharStrings dict.

With all of these changes, the TT font with 16000 actual named
glyohs can be loaded as a Type 42 font and doesn't overflow the
current default MaxOpStack (50000) or the 64K name limit when
EXTEND_NAMES=0 (the default).

In the future, if we see a font with too many named glyhs, we
may get a 'limitcheck in --cvn--' which will tell us we need to
build with EXTEND_NAMES=1. At that time we can decide if we want
to increase the default for EXTEND_NAMES.

[lib/gs_ttf.ps]

2006-06-07T15:26:51.814233Z Ralph Giles

Correct the copyright holder and Id keyword after the licese header reversion.

[src/md5.c src/md5.h]

2006-06-03T06:34:51.036122Z leonardo

Fix (Font resource machinery) : Improve finding encodings in gs_fntem.ps (issue 2).

DETAILS :

It's a temporary work around the bug 688710 "Fix the Encoding resource category"
for the UFST integration project.

[lib/gs_fntem.ps]

2006-06-02T18:50:15.915729Z Dan Coby

Make capture_spot_equivalent_cmyk_colors global.

[src/gsequivc.c src/gsequivc.h]

2006-06-02T01:37:20.018191Z Alex Cherepanov

Fix an infinite loop on 64-bit platforms; make the size of max_import_coord to
be as big as the size of the 'fixed' type.
Bug 688724.

[src/gxhintn.h]

2006-06-01T15:45:30.982915Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 15.

DETAILS :

Improving the font mapping.

[lib/FCOfontmap]

2006-06-01T14:09:52.659638Z leonardo

Add Wingdings Encoding, Decoding resource files.

[Resource/Encoding/Wingdings Resource/Encoding Resource/Decoding/FCO_Wingdings]

2006-06-01T13:44:48.615495Z leonardo

Fix (Font resource machinery) : Improve finding encodings in gs_fntem.ps .

DETAILS :

It's a temporary work around the bug 688710 "Fix the Encoding resource category"
for the UFST integration project.

[lib/gs_fntem.ps]

2006-06-01T11:42:08.068704Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 14.

DETAILS :

Returning the hack about rendering a space instead hollow box.
See comment in code.

[src/fapiufst.c]

2006-06-01T07:50:53.652962Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 13.

DETAILS :

Fix the replaced left side bearing.
Debugged with 093-01.ps, the box 093-03.

[src/zfapi.c]

2006-06-01T06:16:00.401809Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 12.

DETAILS :

Add a dependency missed in the last patch.

[src/int.mak]

2006-06-01T01:54:55.252144Z Alex Cherepanov

Clean up the code that opens starting arg files (@ files). Use iodev_default
when it is available. Otherwise use the staticly initialized %os% device.
Bug 688720.

[src/gsiodev.c src/zfile.c]

2006-06-01T00:09:21.528804Z Alex Cherepanov

Fix FPE in t1_hinter__set_stem_snap() on Alpha. Don't process stem snap
elements when there's none. Bug 688727.

[src/gxhintn.c]

2006-05-31T17:10:39.858313Z Stefan Kemper

Revert copywrite notices for public domain code used by ghostscript.

[src/gdevsgi.h src/gdevifno.c src/md5.c src/gdevsgi.c src/md5.h src/md5main.c src/gdev4693.c src/gp_vms.c]

2006-05-31T15:29:52.122361Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 11.

DETAILS :

1. AgfaUFST plugin is renamed into UFST, because the manufacturer (Monotype Imaging) separated from Agfa.
2. Provide loading UFST plugin with UFST_PlugIn command line option.
3. The command line option UFSTdir is renamed into UFST_ssdir
4. Adjust FCOfontmap to PCLPS2 fonts.
5. Improve comments for EF_SUBSTHOLLOWBOX_TYPE.

[doc/Use.htm doc/Make.htm lib/FAPIcidfmap src/fapiufst.c lib/FAPIfontmap lib/gs_fapi.ps lib/FCOfontmap]

2006-05-31T14:51:47.948908Z Ralph Giles

In generating the changelog files in the documentation, treat "DIFFERENCES:"
the same as "EXPECTED DIFFERENCES:". Also trim everything from the log message
after this point since that section is of ephemeral interest. Bug 688715.

Note that this means nothing important should be placed after such a section heading.

[toolbin/split_changelog.py]

2006-05-31T01:21:42.643282Z Ralph Giles

Minor release documentation updates.

[doc/Release.htm]

2006-05-31T00:44:40.105558Z Ralph Giles

macos-mcp.mak is now distributed with all releases.

[doc/Make.htm]

2006-05-31T00:24:37.164443Z Ralph Giles

Merge license clarifications from the GPL Ghostscript 8.51 release 
documentation.

[doc/Fonts.htm doc/Commprod.htm]

2006-05-30T13:56:04.780494Z Alex Cherepanov

Fix incorrect element size argument of qsort(), that causes SEGV on
platforns with sizeof(void *) != sizeof(int) since rev. 6669.
Bug 688721.

[src/gxfcopy.c]

2006-05-26T14:09:02.598171Z Tor Andersson

Ignore errors when zlib streams fail on the checksum. Fixes bug 688716.

[src/szlibd.c]

2006-05-25T10:51:09.698836Z leonardo

Fix (Font resource machinery) : Apply general methoid for finding a font substitute.

DETAILS :

If a font isn't found, the old code loads Courier definted in Fontmap.GS .
This causes problems with FAPI, which defines its own Courier in
FAPIfontmap.

The new code re-starts the search from the top of the 
resource substitution logic, which may be enhanced multiple times with
Font resource category redefinition, particularly with MappedCategoryRedefiner.

[lib/gs_fonts.ps]

2006-05-25T07:12:51.456665Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 10.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.

Fixing Cygwin/gcc warnings.

[src/fapiufst.c]

2006-05-25T06:53:55.033342Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 9.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.

This patch provides building and running with both UFST_REENTRANT 0 and UFST_REENTRANT 1.

[src/fapiufst.c]

2006-05-25T05:37:45.106052Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 8.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.

1. Implementing PaintType 2 for fonts.

3. Fixed wording in a comment in fapiufst.c .

[src/ifapi.h src/fapiufst.c src/zfapi.c]

2006-05-25T05:09:21.683800Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 7.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.

1. Fixing another problem with coordinate rounding - see comments in code.

2. Removing unused variables.

3. A minor code cleanup in zfapi.c : removed a rudimentary check that never suceeds.

[src/fapiufst.c src/zfapi.c]

2006-05-24T18:23:16.110633Z Ralph Giles

Cast character values to (unsigned char) before calling isprint() and
friends. They are designed to work only with ASCII characters, but
some implementations support passing 8 bit character data but only
if it is positive to avoid conflict with a (-1) definition of EOF.
Thus we should cast to map the high characters from negative to
positive values on systems where char is signed by default. Bug
687529.

[icclib/icc.c src/dscparse.c src/gsmisc.c src/imainarg.c]

2006-05-24T18:11:33.648730Z Ralph Giles

Define specific compilers for the jbig2 and jpx libraries so their
CFLAGS are passed to the compiler first. This should prevent version
skew problems when building on systems with other versions of the
same headers installed elsewhere.

[src/lib.mak src/int.mak src/jasper.mak]

2006-05-24T17:19:27.863933Z Ralph Giles

Move a negation inside the test(1) exprepression for better portability.
Fixes bug 688713.

[lib/ps2epsi]

2006-05-24T13:31:11.438055Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 6.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.
Fixing minor problems with coordinate rounding.

[src/fapiufst.c src/zfapi.c]

2006-05-24T12:12:41.294216Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 5.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.

Completely remove gxfapi.c, gxfapi.h .
Now FAPI is the interpreter part and doesn't need a special module in the graphics library.
Also UFST bridge is now fully reentrant.

[src/lib.mak src/gxfapi.c src/fapiufst.c src/gxfapi.h]

2006-05-24T11:15:26.002807Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 4.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.
The change corresponding to the UFST patch with improved subglyph placement.

1. Fixed a bug about text size when rendering comparefiles/two_encodings.ps .
(changes related to orig_FontMatrix).

2. Implementing a command line option for UFSTdir for specifying a 
symbol set file directory for UFST. See change to doc/Use.htm
about user interface.

For doing (2) we pass a parameter to the ensure_open method of
a FAPI server plugin. Note it is a string, therefore Postscript code
must serialize complex parameters. Now it's not complex
because we pass a single option to a single plugin.

[src/ifapi.h doc/Use.htm src/fapiufst.c lib/gs_fapi.ps src/fapi_ft.c src/zfapi.c]

2006-05-24T07:12:33.924004Z leonardo

Fix : 'space' charater was missed in Unicode Decoding resource.

[Resource/Decoding/Unicode Resource/Decoding/FCO_Unicode]

2006-05-23T12:13:59.337888Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 3.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.

The change corresponding to the UFST patch with improved subglyph placement.

[src/fapiufst.c]

2006-05-23T07:13:03.590113Z leonardo

UFST bridge : Implementing FCOfontmap to simplify running UFST with resident fonts only.
See the documentation change included in this patch.

[lib/xlatmap lib/gs_fapi.ps lib/FCOfontmap]

2006-05-23T07:04:16.420792Z leonardo

UFST bridge : Upgrading to UFST 5.0, part 2.

DETAILS :

This code change doesn't affect a regular build with no UFST bridge.

1. Providing ununique character codes in Decoding resources (ifapi.h, zfapi.h).
   The old field FAPI_char_ref::char_code is now depricated,
   but we still provide the backward compatibility.
   FAPI_char_ref::char_codes will work instead FAPI_char_ref::char_code.
   UFST bridge and FreeType bridge don't implement ununique character codes yet.
   This feature isn't debuged but stored for further developemnt.

2. Improving the 'xlatmap' handling for Microtype font type (fapiufst.c).

3. Enlarde the decodingID field (fapiufst.c).

4. Preserve Decoding if it is specified in the fomt dictionary.

5. Fixing FONTCONTEXT data for FCO font type (fapiufst.c).

6. Obtaining design_bbox with USBOUNDBOX feature of UFST 5.0.
   It requires a patch to UFST 5.0.

[src/ifapi.h src/fapiufst.c src/zfapi.c]

2006-05-23T06:48:01.451051Z leonardo

UFST bridge : More decoding resources since FCOs assume slightly different encodings.

[Resource/Decoding/FCO_Dingbats Resource/Decoding/FCO_Symbol Resource/Decoding/FCO_Unicode]

2006-05-21T02:36:04.902497Z Ralph Giles

Update release documentation somewhat to reflect current practice.

[doc/Release.htm]

2006-05-21T02:21:48.624607Z Ralph Giles

Bump version number after the 8.54 release.

[doc/News.htm lib/gs_init.ps src/gscdef.c src/version.mak]

2006-05-20T20:29:29.474563Z Ralph Giles

Merge changes from the 8.54 branch to support svn in the release 
utilities.

[toolbin/pre.tcl toolbin/split_changelog.py]

2006-05-20T20:27:09.924280Z Ralph Giles

Merge documentation updates from the 8.54 release branch. This updates 
the release date and changelogs.

[doc/History7.htm doc/Projects.htm doc/History8.htm doc/Use.htm doc/Readme.htm doc/Maintain.htm doc/Deprecated.htm doc/Source.htm doc/Install.htm doc/Changes.htm doc/Copying.htm doc/API.htm doc/Issues.htm doc/DLL.htm doc/Drivers.htm doc/Commprod.htm doc/Release.htm doc/Xfonts.htm doc/Devices.htm doc/Language.htm doc/Fonts.htm doc/Ps2ps2.htm doc/Develop.htm doc/Ps2pdf.htm doc/Helpers.htm doc/Psfiles.htm doc/Lib.htm doc/gs-vms.hlp doc/Htmstyle.htm doc/News.htm doc/Make.htm doc/Details8.htm doc/Testing.htm doc/Unix-lpr.htm doc/Ps-style.htm doc/C-style.htm doc/History1.htm doc/History2.htm doc/History3.htm doc/History4.htm doc/Details.htm doc/Ps2epsi.htm doc/History5.htm doc/History6.htm]

2006-05-19T01:19:20.532036Z Alex Cherepanov

Allocate scanline_buffer for DCTDecode filter in stable memory to prevent it
from being freed twice: by restoring the state before the filter was used for
reading and by closing the filter.
Bug 688694 from the customer 632.

[src/sdctd.c]

2006-05-18T16:51:54.327153Z Ray Johnston

Change example code so that users/customers that copy it will avoid the
memory leak mentioned in bug 688599.

[src/gs.c]

2006-05-17T23:31:29.652305Z Dan Coby

Fix for 688675  Reading / Converting PDF File created with Adobe
Lifecycle Designer 7.0.

DETAILS:

The test file has xref tables with incorrect generation numbers for
serveral entries.  The xref verification logic finds the mismatch
between the generation numbers specified in the xref and the generation
numbers in the objects.  It then attempts to requild the xref table.
This fails since the xref rebuild logic does not handle rebuilding
compressed object streams.  As a result the file cannot be displayed.

The fix consists of three parts.

1.  Change the xref verification logic to exit if compressed object
streams are detected.  I am not attempting to recover objects in
compressed object streams since anything that damages a file will
generally trash any compressed data.

2.  Change the logic which checks the generation number to simply
print a warning but to continue.  Previously this logic would print
a warning and then reject the object. Rejecting an object generally
causes an error to occur as the PDF interpreter attempts to use the
object.  The warning message was also enhanced to print both the
expected and actually generation numbers.  The given test file
produces about 400 warning messages.

3.  Enhance the comments for the print_xref.

Note:  Thanks to Alex for his work in determining that the file can be
processed if these changes are made.

[lib/pdf_main.ps lib/pdf_base.ps lib/pdf_rbld.ps]

2006-05-17T19:55:41.010790Z Ray Johnston

Fix for yet another non-spec PDF that Adobe Acrobat Reader handles silently.
(missing whitespace after 'endobj'). Bug 688695 for customer 580.

DETAILS:

Since the extra checking for /endobj.*/ only happens when we are about to
issue 'Unknown operator' tokenerror, the performance impact of this hack
is non-existent for valid PDF files.

[lib/pdf_base.ps]

2006-05-17T18:39:07.604408Z Ralph Giles

Use pkg-config to request linking with GTK 2 in the unix dll build
instead of the older gtk-config with specifies GTK 1. This will break
the (generally unsupported) dll build on very old systems but fixes
it for most current and near future platforms. Bug 688701.

[src/unix-dll.mak]

2006-05-17T18:34:00.699127Z Ralph Giles

Enable the cfax device in the default autoconf build for the convenience
of free users. This is required to use Ghostscript to drive capifax devices.

DETAILS:

In general we don't enable random devices used by a subset of users, but
we already include the three raw fax devices, so it isn't worth objecting
to a fourth. CAPI fax is commonly used over ISDN in Europe.

In the future we'd like to support device selection from the configure
commandline, similar to what is done in ESP Ghostscript. With that it
would be reasonable to remove most of the little-used devices since
package build systems will have a standard way to select their set, and
we will have a standard way to enable all supported devices for testing.

[src/Makefile.in]

2006-05-17T18:06:04.522955Z Ralph Giles

Remove ARCH_STRUCT_ALIGN_MOD entirely and revert to 
ARCH_ALIGN_MEMORY_MOD not having the extra jmp_buf
alignment requirements. This satisfies the assumption
that structure alignment and sizeof(ref) agree in
the Ghostscript code and should finally fix 687643.

Also add a cast back to jmp_buf in the alignment
macro setjmp_.h. Fixes bug 688698. Patch from
Alex Cherepanov.

[src/std.h src/setjmp_.h src/genarch.c]

2006-05-17T15:24:29.868984Z Ralph Giles

Add recent new files to the listing in the developer documentation.

[doc/Develop.htm]

2006-05-17T15:14:51.387610Z Ralph Giles

Set native eol-style and and enable Id keyword substitution.

[lib/FCOfontmap]

2006-05-17T11:34:54.678587Z leonardo

UFST bridge : Copyright banner and RCS line have been missed in the last commit.

[lib/FCOfontmap]

2006-05-17T11:33:20.081655Z leonardo

UFST bridge : Copyright banner and RCS line have been missed in the last commit.

[lib/FCOfontmap]

2006-05-17T11:29:55.042925Z leonardo

UFST bridge : Copyright banner and RCS line have been missed in the last commit.

[lib/FCOfontmap]

2006-05-17T11:23:20.989390Z leonardo

UFST bridge : Implementing FCOfontmap to simplify running UFST with resident fonts only.
See the documentation change included in this patch.

[doc/Use.htm lib/gs_fapi.ps lib/FCOfontmap]

2006-05-17T04:50:12.217865Z Ray Johnston

Fix so that dictionaries that grow preserve attributes.
Several problems reported including a potential security
hole when in SAFER mode. Thanks to mat Gh Savulescu
(SaGS) for the bug report, the patch and excellent
analysis of the problem.

DETAILS:

Ordinarily dictionaries have unprotected, non-exectue
status, but it is possible to "grow" executable or even
"read-only" dictionaries (contact Ray Johnston for an
explanation as provided by mat Gh Savulescu). The bug
in idict.c would not preserve the attributes, making
the dictionary not executable, and not readonly even
if those were the original attributes.

[src/idict.c]

2006-05-16T09:56:13.829816Z leonardo

UFST bridge : Upgrading to UFST 5.0 .

DETAILS :

This code change doesn't affect a regular build with no UFST bridge,
except an unimportant change to lib.mak .

This revision allows the UFST bridge to compile and work somehow.
This revision of UFST bridge was not systematically tested.

UFST 5.0 doesn't implement design bbox for non-FCO fonts,
therefore it is stubbed with Em box. 
In this case glyphs are cropped. 
For FCO fonts the implementation of USBOUNDBOX in UFST 5.0
appears incomplete, and it needs our patch to work properly.
The change to UFST 5.0 code is not included here.

[src/lib.mak src/ifapi.h src/gxfapi.c src/fapiufst.c src/gxfapi.h src/zfapi.c]

2006-05-15T22:07:53.891632Z Raph Levien

Commits setjmp_.h, which I left out of the previous patch.

[src/setjmp_.h]

2006-05-15T21:29:29.006940Z Ralph Giles

Correct a typo resulting in inproper glyph placement with transposed text 
and a top left reference corner. Fixes bug 688645.

[jbig2dec/jbig2_text.c]

2006-05-15T20:35:29.086193Z Ralph Giles

Ignore common generated files.

[jasper jasper/src/libjasper/pgx jasper/src/libjasper jasper/src/libjasper/include/jasper jasper/src/libjasper/base jasper/src/libjasper/mif jasper/src/libjasper/jpc jasper/src/libjasper/bmp jasper/src/libjasper/jpg jasper/src/appl jasper/src/libjasper/include jasper/src jasper/src/libjasper/ras jasper/src/libjasper/pnm jasper/src/libjasper/jp2 jasper/src/msvc]

2006-05-15T20:27:21.734326Z Ralph Giles

Remove a generated source file from the included jasper library.

[jasper/src/libjasper/include/jasper/jas_config_ac.h]

2006-05-15T18:44:16.729159Z Raph Levien

FIX: Allocate jmp_buf with padding, to satisfy alignment constraints. 
Fixes bug #687643.

[src/lib.mak src/sjpegd.c src/sjpege.c src/sdct.h src/ttinterp.c src/ttobjs.h src/sjpegc.c]

2006-05-12T23:39:33.380797Z Ralph Giles

Document how to compile Ghostscript with the Luratech compression 
libraries. Bug 688665.

[doc/Make.htm]

2006-05-12T23:17:47.022921Z Ralph Giles

Update Language.htm to better describe the current level of PDF support. 
Bug 688661.

[doc/Language.htm]

2006-05-12T22:47:54.173109Z Ralph Giles

Add commented out line for manually enabling the luratech build with 
autoconf.

[src/Makefile.in]

2006-05-12T22:23:14.706617Z Ralph Giles

Always make read progress is s_jbig2encode process when there is data
available. Fixes bug #688658.

[src/sjbig2_luratech.h src/sjbig2_luratech.c]

2006-05-11T04:59:24.800767Z Dan Coby

Fix for 688686 segfault in find_bit_map().

DETAILS:

The addition of the compressed encoded color logic created a problem for
the psdrgb device.  This device shares most of its code with the psdcmyk
device.  The common print_page procedure uses devn_unpack_row.  This
routine was modified to work with the compressed encoded color values.
However the psdrgb device does not use the compressed encoded color logic.

The fix consists of checking for the presence or absence of a compressed
color list pointer.  The presence of this pointer indicates if the compressed
color logic is being used.  The appropriate uncompress logic is used.

[src/gdevdevn.c]

Version 8.54 (2006-05-17)

This is the fifth stable release in the 8.5x series of Ghostscript. It contains a numerous bug fixes and improvements.

The following bugs were open at the time of this release:

226943, 405501, 430175, 465936, 493348, 530011, 535932, 578865, 592160, 610478, 614298, 626295, 686747, 686853, 686865, 687011, 687039, 687063, 687084, 687095, 687108, 687125, 687146, 687193, 687196, 687219, 687229, 687231, 687257, 687271, 687280, 687295, 687297, 687303, 687304, 687314, 687316, 687327, 687342, 687345, 687346, 687375, 687397, 687399, 687414, 687445, 687460, 687475, 687480, 687484, 687492, 687498, 687514, 687520, 687529, 687531, 687536, 687559, 687561, 687593, 687595, 687608, 687630, 687650, 687666, 687674, 687677, 687679, 687680, 687695, 687697, 687702, 687715, 687721, 687728, 687729, 687731, 687775, 687780, 687782, 687793, 687796, 687805, 687814, 687825, 687844, 687850, 687863, 687887, 687896, 687903, 687904, 687907, 687915, 687919, 687931, 687950, 687957, 687960, 687970, 687974, 687977, 687978, 687981, 687983, 687988, 687992, 687996, 688006, 688007, 688009, 688020, 688022, 688024, 688026, 688032, 688035, 688036, 688039, 688042, 688047, 688054, 688058, 688061, 688064, 688066, 688071, 688072, 688073, 688075, 688081, 688095, 688108, 688124, 688129, 688130, 688134, 688151, 688152, 688159, 688166, 688181, 688184, 688187, 688200, 688203, 688204, 688207, 688210, 688215, 688225, 688227, 688239, 688243, 688249, 688258, 688260, 688267, 688269, 688274, 688278, 688280, 688282, 688283, 688288, 688291, 688295, 688311, 688312, 688317, 688318, 688320, 688323, 688329, 688332, 688333, 688337, 688338, 688339, 688342, 688358, 688359, 688360, 688361, 688363, 688372, 688375, 688378, 688383, 688386, 688387, 688389, 688394, 688395, 688396, 688400, 688413, 688425, 688427, 688428, 688429, 688434, 688436, 688437, 688440, 688446, 688448, 688463, 688468, 688473, 688474, 688475, 688477, 688479, 688483, 688490, 688493, 688495, 688500, 688515, 688517, 688518, 688526, 688528, 688532, 688533, 688536, 688539, 688540, 688542, 688543, 688557, 688565, 688570, 688573, 688580, 688581, 688588, 688596, 688598, 688599, 688601, 688604, 688605, 688610, 688613, 688616, 688617, 688619, 688621, 688623, 688626, 688627, 688631, 688633, 688634, 688635, 688636, 688637, 688638, 688639, 688640, 688641, 688643, 688646, 688647, 688650, 688651, 688652, 688653, 688655, 688669, 688671, 688672, 688673, 688674, 688675, 688676, 688678, 688683, 688687, 688688, 688689, 688691, 688692.

Incompatible changes

There are no known incompatible changes at this point.

Changelog

2006-05-17T18:27:07.676488Z Ralph Giles

Merge change from trunk.

Remove ARCH_STRUCT_ALIGN_MOD entirely and revert to 
ARCH_ALIGN_MEMORY_MOD not having the extra jmp_buf
alignment requirements. This satisfies the assumption
that structure alignment and sizeof(ref) agree in
the Ghostscript code and should finally fix 687643.

Also add a cast back to jmp_buf in the alignment
macro setjmp_.h. Fixes bug 688698. Patch from
Alex Cherepanov.

[/branches/ghostscript-8.54/src/std.h /branches/ghostscript-8.54/src/setjmp_.h /branches/ghostscript-8.54/src/genarch.c]

2006-05-17T15:32:18.088676Z Ralph Giles

Port the fix for bug #688149 from trunk. Originally committed by Ray 
Johnson.

Fix so that dictionaries that grow preserve attributes.                         
Several problems reported including a potential security                        
hole when in SAFER mode. Thanks to mat Gh Savulescu                             
(SaGS) for the bug report, the patch and excellent                              
analysis of the problem.                                                        
                                                                                
DETAILS:                                                                                                                                                        
Ordinarily dictionaries have unprotected, non-exectue                           
status, but it is possible to "grow" executable or even                         
"read-only" dictionaries (contact Ray Johnston for an                           
explanation as provided by mat Gh Savulescu). The bug                           
in idict.c would not preserve the attributes, making                            
the dictionary not executable, and not readonly even                            
if those were the original attributes.                                          
                                                                                
EXPECTED DIFFERENCES:                                                                                                                                           
None. (we don't run regression in SAFER mode and don't                          
rely on 'special' dict attributes).

[/branches/ghostscript-8.54/src/idict.c]

2006-05-15T23:32:49.061208Z Ralph Giles

Additional release date updates.

[/branches/ghostscript-8.54/doc/Details8.htm /branches/ghostscript-8.54/doc/History8.htm]

2006-05-15T23:03:16.814804Z Ralph Giles

Update release date for 8.54rc2.

[/branches/ghostscript-8.54/doc/Issues.htm /branches/ghostscript-8.54/doc/DLL.htm /branches/ghostscript-8.54/doc/Drivers.htm /branches/ghostscript-8.54/man/pfbtopfa.1 /branches/ghostscript-8.54/doc/Commprod.htm /branches/ghostscript-8.54/doc/Release.htm /branches/ghostscript-8.54/doc/Xfonts.htm /branches/ghostscript-8.54/doc/Devices.htm /branches/ghostscript-8.54/doc/Language.htm /branches/ghostscript-8.54/src/version.mak /branches/ghostscript-8.54/man/gs.1 /branches/ghostscript-8.54/doc/Fonts.htm /branches/ghostscript-8.54/doc/Ps2ps2.htm /branches/ghostscript-8.54/man/pf2afm.1 /branches/ghostscript-8.54/doc/Develop.htm /branches/ghostscript-8.54/doc/Ps2pdf.htm /branches/ghostscript-8.54/man/printafm.1 /branches/ghostscript-8.54/doc/Helpers.htm /branches/ghostscript-8.54/man/pdf2dsc.1 /branches/ghostscript-8.54/doc/Psfiles.htm /branches/ghostscript-8.54/doc/Lib.htm /branches/ghostscript-8.54/doc/gs-vms.hlp /branches/ghostscript-8.54/man/gsnd.1 /branches/ghostscript-8.54/man/font2c.1 /branches/ghostscript-8.54/doc/Htmstyle.htm /branches/ghostscript-8.54/man/pdfopt.1 /branches/ghostscript-8.54/man/ps2pdf.1 /branches/ghostscript-8.54/man/pdf2ps.1 /branches/ghostscript-8.54/doc/News.htm /branches/ghostscript-8.54/doc/Details8.htm /branches/ghostscript-8.54/doc/Make.htm /branches/ghostscript-8.54/doc/Testing.htm /branches/ghostscript-8.54/doc/Unix-lpr.htm /branches/ghostscript-8.54/doc/C-style.htm /branches/ghostscript-8.54/doc/Ps-style.htm /branches/ghostscript-8.54/doc/History1.htm /branches/ghostscript-8.54/doc/History2.htm /branches/ghostscript-8.54/man/gslp.1 /branches/ghostscript-8.54/man/wftopfa.1 /branches/ghostscript-8.54/doc/History3.htm /branches/ghostscript-8.54/doc/Ps2epsi.htm /branches/ghostscript-8.54/doc/History4.htm /branches/ghostscript-8.54/man/ps2pdfwr.1 /branches/ghostscript-8.54/man/ps2ps.1 /branches/ghostscript-8.54/doc/History5.htm /branches/ghostscript-8.54/doc/History6.htm /branches/ghostscript-8.54/doc/History7.htm /branches/ghostscript-8.54/doc/Projects.htm /branches/ghostscript-8.54/doc/History8.htm /branches/ghostscript-8.54/man/dvipdf.1 /branches/ghostscript-8.54/man/ps2ascii.1 /branches/ghostscript-8.54/doc/Use.htm /branches/ghostscript-8.54/doc/Readme.htm /branches/ghostscript-8.54/doc/Source.htm /branches/ghostscript-8.54/doc/Deprecated.htm /branches/ghostscript-8.54/doc/Maintain.htm /branches/ghostscript-8.54/man/ps2epsi.1 /branches/ghostscript-8.54/doc/Install.htm /branches/ghostscript-8.54/doc/Copying.htm /branches/ghostscript-8.54/doc/API.htm]

2006-05-15T22:59:12.198801Z Ralph Giles

Update changelogs for 8.54rc2.

[/branches/ghostscript-8.54/doc/News.htm /branches/ghostscript-8.54/doc/Details8.htm /branches/ghostscript-8.54/doc/Details.htm /branches/ghostscript-8.54/doc/Changes.htm /branches/ghostscript-8.54/doc/History8.htm]

2006-05-15T22:51:20.894499Z giles

Add setjmp_.h, which was left out of the patch fixing bug #687643.

[/branches/ghostscript-8.54/src/setjmp_.h]

2006-05-15T21:31:28.156524Z giles

Correct a typo resulting in inproper glyph placement with transposed 
text and a top left reference corner. Fixes bug 688645. Fix merged
from trunk.

[/branches/ghostscript-8.54/jbig2dec/jbig2_text.c]

2006-05-15T21:07:48.699439Z giles

Update MSVC build to refer to the release version of MS Visual Studio 
.NET 2005.

[/branches/ghostscript-8.54/doc/Make.htm /branches/ghostscript-8.54/src/msvc32.mak]

2006-05-15T19:17:06.838612Z giles

Update the usage line for the split_changelog utility.

[/branches/ghostscript-8.54/toolbin/split_changelog.py]

2006-05-15T19:16:13.375379Z giles

Correct a problem with the display device. The initialiser            
needs to be a scaler, not the array that was being used.
GCC on OS/2 was giving a warning about this. This makes it
consistent with gdevtsep.c. Patch from Russell Lang.

[/branches/ghostscript-8.54/src/gdevdsp.c]

2006-05-15T19:08:28.721428Z giles

Update changelogs.

[/branches/ghostscript-8.54/doc/News.htm /branches/ghostscript-8.54/doc/Details8.htm /branches/ghostscript-8.54/doc/Details.htm /branches/ghostscript-8.54/doc/Changes.htm /branches/ghostscript-8.54/doc/History8.htm]

2006-05-15T19:00:31.775976Z giles

FIX: Allocate jmp_buf with padding, to satisfy alignment constraints.           
Fixes bug #687643. Change merged from trunk.

[/branches/ghostscript-8.54/src/sdct.h /branches/ghostscript-8.54/src/ttinterp.c /branches/ghostscript-8.54/src/ttobjs.h /branches/ghostscript-8.54/src/sjpegc.c /branches/ghostscript-8.54/src/lib.mak /branches/ghostscript-8.54/src/sjpegd.c /branches/ghostscript-8.54/src/sjpege.c]

2006-05-15T17:36:28.446043Z giles

Port documentation updates from trunk.

DETAILS:

Document how to compile Ghostscript with the Luratech compression 
libraries. Bug 688665.

Update Language.htm to better describe the current level of PDF support. 
Bug 688661.

[/branches/ghostscript-8.54/doc/Make.htm /branches/ghostscript-8.54/doc/Language.htm]

2006-05-15T17:35:26.789659Z giles

Add commented out line for manually enabling the luratech build with 
autoconf. Change ported from trunk.

[/branches/ghostscript-8.54/src/Makefile.in]

2006-05-15T17:34:18.223579Z giles

Always make read progress is s_jbig2encode process when there is data
available. Fixes bug #688658. Port from trunk to the 8.54 branch.

[/branches/ghostscript-8.54/src/sjbig2_luratech.c /branches/ghostscript-8.54/src/sjbig2_luratech.h]

2006-05-15T01:29:53.383801Z dan

Port fix for 688686 segfault in find_bit_map() to 8.54 branch.

DETAILS:

The addition of the compressed encoded color logic created a problem for
the psdrgb device.  This device shares most of its code with the psdcmyk
device.  The common print_page procedure uses devn_unpack_row.  This
routine was modified to work with the compressed encoded color values.
However the psdrgb device does not use the compressed encoded color logic.

The fix consists of checking for the presence or absence of a compressed
color list pointer.  The presence of this pointer indicates if the compressed
color logic is being used.  The appropriate uncompress logic is used.

[/branches/ghostscript-8.54/src/gdevdevn.c]

2006-05-11T01:28:43.068966Z giles

Update the changelog xml2html script to handle the output of 
'svn log --verbose --xml' instead of 'cvs2cl'.

[/branches/ghostscript-8.54/toolbin/split_changelog.py]

2006-05-10T22:05:04.536292Z giles

Fix up pre.tcl a bit to handle svn Id: lines.

[/branches/ghostscript-8.54/toolbin/pre.tcl]

2006-05-10T21:57:36.424976Z giles

Propagate release number and data changes to the documentation.

[/branches/ghostscript-8.54/doc/Issues.htm /branches/ghostscript-8.54/doc/DLL.htm /branches/ghostscript-8.54/doc/Drivers.htm /branches/ghostscript-8.54/man/pfbtopfa.1 /branches/ghostscript-8.54/doc/Commprod.htm /branches/ghostscript-8.54/doc/Release.htm /branches/ghostscript-8.54/doc/Xfonts.htm /branches/ghostscript-8.54/doc/Devices.htm /branches/ghostscript-8.54/doc/Language.htm /branches/ghostscript-8.54/man/gs.1 /branches/ghostscript-8.54/doc/Fonts.htm /branches/ghostscript-8.54/doc/Ps2ps2.htm /branches/ghostscript-8.54/man/pf2afm.1 /branches/ghostscript-8.54/doc/Develop.htm /branches/ghostscript-8.54/doc/Ps2pdf.htm /branches/ghostscript-8.54/man/printafm.1 /branches/ghostscript-8.54/doc/Helpers.htm /branches/ghostscript-8.54/man/pdf2dsc.1 /branches/ghostscript-8.54/doc/Psfiles.htm /branches/ghostscript-8.54/doc/Lib.htm /branches/ghostscript-8.54/doc/gs-vms.hlp /branches/ghostscript-8.54/man/gsnd.1 /branches/ghostscript-8.54/man/font2c.1 /branches/ghostscript-8.54/doc/Htmstyle.htm /branches/ghostscript-8.54/man/pdfopt.1 /branches/ghostscript-8.54/man/ps2pdf.1 /branches/ghostscript-8.54/man/pdf2ps.1 /branches/ghostscript-8.54/doc/Details8.htm /branches/ghostscript-8.54/doc/Make.htm /branches/ghostscript-8.54/doc/Testing.htm /branches/ghostscript-8.54/doc/Unix-lpr.htm /branches/ghostscript-8.54/doc/C-style.htm /branches/ghostscript-8.54/doc/Ps-style.htm /branches/ghostscript-8.54/doc/History1.htm /branches/ghostscript-8.54/doc/History2.htm /branches/ghostscript-8.54/man/gslp.1 /branches/ghostscript-8.54/man/wftopfa.1 /branches/ghostscript-8.54/doc/History3.htm /branches/ghostscript-8.54/man/ps2ps.1 /branches/ghostscript-8.54/doc/Ps2epsi.htm /branches/ghostscript-8.54/doc/History4.htm /branches/ghostscript-8.54/man/ps2pdfwr.1 /branches/ghostscript-8.54/doc/History5.htm /branches/ghostscript-8.54/doc/History6.htm /branches/ghostscript-8.54/doc/History7.htm /branches/ghostscript-8.54/doc/Projects.htm /branches/ghostscript-8.54/doc/History8.htm /branches/ghostscript-8.54/man/dvipdf.1 /branches/ghostscript-8.54/man/ps2ascii.1 /branches/ghostscript-8.54/doc/Use.htm /branches/ghostscript-8.54/doc/Readme.htm /branches/ghostscript-8.54/doc/Source.htm /branches/ghostscript-8.54/doc/Deprecated.htm /branches/ghostscript-8.54/doc/Maintain.htm /branches/ghostscript-8.54/man/ps2epsi.1 /branches/ghostscript-8.54/doc/Install.htm /branches/ghostscript-8.54/doc/Copying.htm /branches/ghostscript-8.54/doc/API.htm]

2006-05-10T21:54:27.892199Z giles

Update the libpng version number to match the included release.

[/branches/ghostscript-8.54/src/ugcclib.mak /branches/ghostscript-8.54/src/macosx.mak /branches/ghostscript-8.54/src/watcw32.mak /branches/ghostscript-8.54/src/dvx-gcc.mak /branches/ghostscript-8.54/src/msvc32.mak /branches/ghostscript-8.54/src/unix-gcc.mak /branches/ghostscript-8.54/src/unixansi.mak /branches/ghostscript-8.54/src/macos-mcp.mak /branches/ghostscript-8.54/src/msvclib.mak /branches/ghostscript-8.54/src/all-arch.mak /branches/ghostscript-8.54/src/os2.mak /branches/ghostscript-8.54/src/watclib.mak /branches/ghostscript-8.54/src/bcwin32.mak /branches/ghostscript-8.54/src/openvms.mak]

2006-05-10T21:44:14.213811Z giles

Update version numbers and dates for release.

[/branches/ghostscript-8.54/src/winint.mak /branches/ghostscript-8.54/doc/News.htm /branches/ghostscript-8.54/src/gscdef.c /branches/ghostscript-8.54/src/version.mak /branches/ghostscript-8.54/src/dwsetup.rc]

2006-05-10T21:06:42.656903Z giles

Branch for the AFPL Ghostscript 8.54 release.

[/branches/ghostscript-8.54]

2006-05-10T21:05:11.037293Z Ralph Giles

We must reset the state structure pointers passed as userdata for the 
luratech library read and write callback from within the s_jpxe_process
method because the garbage collector may have move the struct since the
call to s_jpxe_init. Fixes bug 688657.

Thanks to Ray Johnston for his analysis of the issue.

[src/sjpx_luratech.c]

2006-05-10T11:23:25.592534Z Alex Cherepanov

Upgrade Japanese Unicode CMap resources from
ftp://ftp.oreilly.com/pub/examples/nutshell/cjkv/adobe/aj16.tar.Z
Bug 688685.

DIFFERENCES:
None

[Resource/CMap/UniJISX0213-UTF32-H Resource/CMap/UniJIS-UTF32-H Resource/CMap/UniJIS-UTF16-H Resource/CMap/UniJIS-UTF8-H]

2006-05-08T17:43:01.487840Z Ray Johnston

Add checking for required Function in some shadings to prevent later
SEGV. Detected with CET 12-14b.ps

EXPECTED DIFFERENCES:

None. This CET tests known ILLEGAL cases. The CET is not part of the
nightly regression suite.

[src/zshade.c]

2006-05-08T05:39:29.301618Z Ray Johnston

Move internal type 'gs_pattern1_instance_t' and 'gs_pattern2_instance_t' into
an array for compatibility with CPSI and a poorly designed CET (09-03.ps).

DETAILS:

The CET doesn't bother to examine the array contents, so this ruse works.
Since patterns aren't that common, we go ahead and use a 2 element array
even though we only use the first element.

EXPECTED DIFFERENCES:

None.

[lib/gs_patrn.ps lib/gs_lev2.ps src/zcolor.c]

2006-05-04T19:57:23.542378Z Ray Johnston

Fix a missing image problem seen in 468-03 (part of 468-01.ps). Even though
this test appears to violate the rules in the PLRM for Mask and Data Image
sizes for ImageType3, Adobe CPSI and other RIPS ignore the problem.

EXPECTED DIFFERENCES:

468-01.ps

[src/gximage3.c]

2006-05-03T15:24:53.610732Z Ralph Giles

Add a note about additional license change cleanup to be done when 
making GPL releases. Bug 688677.

[doc/Release.htm]

2006-04-28T07:43:58.270935Z leonardo

pdfwrite : Luratech filters must not apply to inline images, part 2.

DETAILS :

Bug 688679 "/syntaxerror in ID with luratech coded pdf".

The last patch appears incomplete. THis one fixes that.

EXPECTED DIFFERENCES :

None.

[src/gdevpsdi.c]

2006-04-27T17:39:56.495819Z leonardo

Fix (UFST bridge) : Update makefile for UFST 4.6 .

DETAILS :

An .h file has been renamed.

EXPECTED DIFFERENCES :

None.

[src/lib.mak src/int.mak]

2006-04-27T17:36:41.601504Z leonardo

pdfwrite : Luratech filters must not apply to inline images and for Indexed images.

DETAILS :

Bug 688659 "A wrong encoding with Luratech encoder".

1. JPXEncode, JBIG2Encode can't apply to inline images because
PDF specification doesn't define short names for them.

2. JPXEncode can't apply to Indexed images.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfb.c src/gdevpdfv.c src/gdevpsdi.c src/gdevpsdf.h src/gdevpdfi.c]

2006-04-26T22:26:54.710871Z Ralph Giles

As of libpng 1.2.10 we have to define PNG_NO_ASSEMBLY_CODE or include
one of the two asm files on MacOS X. We don't want to fiddle with
the source list based on compiler at this point (MSVC vs GCC) so
just do without the assembly as before.

[src/libpng.mak]

2006-04-26T19:16:55.695237Z Ray Johnston

Fix SEGV when 'reversepath' invoked with a currentpoint but no segments.
Detected with the CET Global Interference test.

EXPECTED DIFFERENCES:

The CET tests might run now ;-)
Otherwise no differences.

[src/gspath1.c]

2006-04-26T01:17:13.575661Z Ray Johnston

Fix for 470-01 at some resolutions (90 dpi failed, 125 dpi worked). Zero
width or height clip box confused shading logic.

EXPECTED DIFFERENCES:

None. 470-01.ps was not in the comparefiles (yet). I will be adding it.

[src/gsshade.c]

2006-04-25T17:31:26.091156Z leonardo

pdfwrite : Implementing ColorImageAutoFilterStrategy, GrayImageAutoFilterStrategy.

DETAILS :

This patch implements ColorImageAutoFilterStrategy, GrayImageAutoFilterStrategy 
destiller parameters, and applies them for choosing image encoding filters
when Ghostscript is built with Luratech filters.

1. Since the old architecture defines common image parameter lists for
pswrite and pdfwrite, now we need to pass CompatibilityLevel to
those common modules. Doing that in a hackish way with defining
a new field gx_device_psdf::ParamCompatibilityLevel,
and setting it whenever that stuff is called from pdfwrite.

2. Using it for the filter choice in psdf_setup_image_filters.

3. Enhance psdf_get_image_params and psdf_put_image_params with
ColorImageAutoFilterStrategy, GrayImageAutoFilterStrategy (gdevpsdp.c).

4. Passing the lossless option for JPXEncode filter in setup_image_compression,
and using that filter for lossless compression instead FlateEncode/LZWEncode
when it is available, depending on ColorImageAutoFilterStrategy, GrayImageAutoFilterStrategy.

5. With CompatibilityLevel>=1.5, with 1bpp images we choose JBIG2Encode instead 
FlateEncode/LZWEncode when it is available.

Thus, when Luratech filters are available, with CompatibilityLevel>=1.5,
Luratech filters work by default.

EXPECTED DIFFERENCES :

None.

[src/gdevpsdp.c src/gdevpdfp.c src/gdevpdfb.c src/gdevpdfv.c src/gdevpsdi.c src/gdevpsdf.h src/gdevpdfi.c]

2006-04-25T16:40:09.951186Z Ralph Giles

Copy the new 1.2.10 libpng release into our tree.

[libpng]

2006-04-25T16:39:48.646150Z Ralph Giles

Remove the included libpng 1.2.8.

[libpng]

2006-04-25T03:10:32.157126Z Ralph Giles

Add hooks for setting the lossly compression quality target or lossless 
compression to the jpxe stream state. Both new parameters are optional,
but the set_defaults method must now be called for consistent behavior.

The quality option allows setting a quality value (1-100 inclusive) 
different from the default, currently 60. Setting the lossless flag
specifies lossless encoding and overrides any quality setting.

[src/sjpx_luratech.h src/gdevjpx.c src/sjpx_luratech.c]

2006-04-22T01:59:07.027378Z Ray Johnston

Change ASCII85Decode EOD handling to make sure that the EOD characters are
consumed before we provide the last bit of data to the caller. The ~> sequence
(actually could be <cr> <lf> ~ <cr> <lf> > ) left in the currentfile would
cause an /undefined error. Bug 688618.

DETAILS:

When the input is piped from %stdin the smaller buffers tripped over this
frequently with the test file simply because there were more buffer bounds
conditions.

Note that this area is _still_ not quite the way Adobe works, but without
major surgery and analysis of Adobe filter behaviour we aren't likely to
achieve 100% compatiblity.

Since we handle the case where the EOD sequence is in the part of the buffer
that we defer processing on (if last is false) we should be quite similar
as far as when we process the EOD since if a complete EOD wasn't in the
buffer previously, the '~' was left there. Now we avoid returning the last
word of data if the complete EOD isn't in the tail of the buffer.

If the EOD sequence seen in the tail is preceded by the 'real' EOD before
the tail in the current buffer, the "false positive" does no harm. Similarly
if there is a malformed EOD '~' not followed by '>' (possibly with intervening
<cr><lf>) the error condition will still be detected when the '~' is actually
parsed in the deocder.

EXPECTED DIFFRENCES:

None. The regression suite still runs fine for me, including FTS files that
use the ASCII85Decode filter such as 119-01.ps.

[src/sa85d.c]

2006-04-22T01:15:50.051226Z Ray Johnston

Yet another apparently broken PDF file that Acrobat Reader handles silently.
In this case a 'Tj' operator when the font is an embedded double byte font
(CIDFont) has an odd number of bytes in the string. Change to return a
.notdef' glpyh for the tail of the string. Bug 688670 fro customer 562.

EXPECTED DIFFERENCES:

None since we did not have any files with this problem.

[src/gsfcmap1.c]

2006-04-21T01:11:36.736823Z Dan Coby

Fix for 688648 Too many MAP file names.

DETAILS:

The Borland C++ 5.5 Builder no longer worked.  The problem was caused
by an earlier change:

r5596 | igor | 2004-12-20 14:17:39 -0800 (Mon, 20 Dec 2004) | 18 lines
Fix : Completely remove the platform dependent target lib.tr from makefiles

There was a note in that change message that it had not been tested with
the Borland compiler.  The bug was also subtle in that the only reason
that the linker command worked previously was because the lib.tr file
was empty.

[src/bcwin32.mak]

2006-04-20T18:14:11.385429Z leonardo

Fix (pdfwrite) : Work around degenerate CTM while stroking a path.

DETAILS :

Bug 688606 "ps2pdf fails with Error: /undefinedresult in --stroke--".

The pdfwrite device uses an inverse CTM to satisfy
Adobe Reader constraing for user coordinates. 
The test document demonstrates another case when a 3d party software 
strokes a path with a degenerate CTM. The old code already implements
a workaround for a si,ilar case. However the old
condition in there appears too strong, and now
we make it weaker to pass a new class of degenerate CTMs.

NMot sure whether we should pass any degenerate CTM.
Will see if new ones appear.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfd.c]

2006-04-18T17:32:25.849734Z Ray Johnston

Implement the status operation for the %rom% device. Restructure the
makefiles to correct some dependency problems. The creation time of
files in the %rom% device are now set to the build time. The need
for this was established during bug 687094.

DETAILS:

Not tested on VMS or OS/2. Header file dependencies were missing. Now
the mkromfs ZLIB objs are a shared macro list as are the header list.

EXPECTED DIFFERENCES:

None since this only is used if COMPILE_INITS=1.

[src/lib.mak src/openvms.mak src/mkromfs.c src/gsiorom.c src/unix-aux.mak src/macos-mcp.mak src/msvctail.mak src/os2.mak]

2006-04-16T19:08:54.198111Z leonardo

Fix (MSVC build) : Always use nodebug CRTL when building a nodebug Ghostscript.

DETAILS :

The old makefile gave a wrong profiling result due to
linking with debug CRTL when TDEBUG=0 DEBUGSYM=1.

EXPECTED DIFFERENCES :

None.

[src/msvc32.mak]

2006-04-16T19:01:41.671156Z leonardo

Fix (memory manager) : Reduce the CPU time consumption for 'restore', step 2.

DETAILS :

This fixes the bug
Bug 688602 "Displaying file with GS-8.53 is much slower than with GS-8.51"
with switching on the new code.
See the revision 6706 log message.

EXPECTED DIFFERENCES :

None.

[src/gxalloc.h]

2006-04-14T19:49:13.902581Z leonardo

Fix (memory manager) : Reduce the CPU time consumption for 'restore'.

DETAILS :

This is a preparation for fixing 
Bug 688602 "Displaying file with GS-8.53 is much slower than with GS-8.51".
Currently the new code is disabled with the macro NO_INVISIBLE_LEVELS
defined in gxalloc.h . 

The performance flaw happened in revision 5980.
Before it the memery manager created "invisible" save levels
when the changes list becomes too long and needs a big time for 
restoring l_new marks. The idea was to skip marls for 
older changes so that they don't consume processor time.
The cost was an extra growth of the changes list,
because such changes are stored at second time
if happen again after the "invisible" 'save'.
While fixing the bug 68815 this optimization was lost
because it was not documented.

In same time, "invisible" 'save' levels appear logically incorrect,
because they cause the problem documented in the bug 68815.
This change implements same idea (the skipping of old changes
while 'restore'), but it does that with no extra 'save' levels.

The new implementation maintains a pointer 
gs_ref_memory_t::scan_limit, which points 
to a middle element of the changes list.
Elements after that pointers do not restore
l_new mark during 'restore'. Besides that,
this change introduces a new kind of change list elements,
which is marked with AC_OFFSET_ALLOCATED in the 'offset' field.
Such elements do not represent a memory content change, 
but they represent an allocation event for 'ref' arrays.
The l_new mark is restored for those refs,
which were allocated after the change element
pointed by gs_ref_memory_t::scan_limit.

To simplify debugging, we define a new switch
NO_INVISIBLE_LEVELS in gxalloc.h .
When NO_INVISIBLE_LEVELS is zero, 
an algorithmically equivalent change happens in isave.c
and igcref.c, and other modules are not affected.
In this case :

1. Factored out a new function mark_allocated (isave.c).
2. Added a new argument to save_set_new, save_set_new_changes
   to know that it is called for an invisible level (isave.c).
3. Factored out a new function igc_reloc_ref_ptr_nocheck (igcref.c).

When NO_INVISIBLE_LEVELS is 1 :

1. Invisible save levels are not created 
   (the change to alloc_save_state in isave.c).
2. Instead that, it creates a new kind of alloc_change_t element, 
   which is marked with AC_OFFSET_ALLOCATED in the 'offset' field.
   Such element points to the beginning of a newly allocated 'ref' array
   (either packed or not) (see alloc_save_change_alloc in isave.c).
3. The new function alloc_save_remove removes such elements when
   the object is being removed explicitely.
4. save_set_new is expanded to process the new kind of alloc_change_t elements.
   With such elements it calls mark_allocated (see above),
   so that the effect is same as before the patch.
5. The scanning of allocated objects in save_set_new is removed
   due to (3).
6. save_set_new_changes is extended with computing the size of 
   newly allocated 'ref' arrays, which are processed during the scan.
   It appears to be close to what save_set_new did while scanning
   allocated objects (the variable 'changed').
7. The new field gs_ref_memory_t::scan_limit stores a termination
   condition for scanning objects in save_set_new_changes.
   The value is stored when save_set_new_changes is called 
   from alloc_save_state as it was for creatng an invisible save level.
   Rather the new code doesn't create an invisible level, 
   the scan termination condition work as it were created.
8. save_set_new_changes uses the variable 'changed'
   for a proper setting of the termination condition.
   The condition is not exactly equivalent to the
   old one, because the old code also accounts 
   a scanning of non-ref objects, but the new code
   doesn't bother with them. Therefore new termination conditions
   appear in some different points than invisible levels did.
   Therefore the behavior isn't algorithmically equivalent.
9. The new code always restore to a 'visible' level.
   In same time, doing a 'restore', some of l_new marks
   may be left unrestored due to the scan tremination condition.
   This effect may be considered as caching a reasonable
   number of recently changed objects by marking with l_new.
   Older changes loose the l_new mark and their further changes
   will be stored again in the 'changes' list. 
   This causes an extra growth of the 'changes' list,
   but saves the processor time from redundant setting
   of multiple l_new marks when save-restore is executed
   multiple times after a big number of changes.
10. The garbager implements a special processing for 
   AC_OFFSET_ALLOCATED elements. The 'where' pointer is not
   enumerated and isn't tracked while the marking phase.
   Instead that the garbager calls a special function 
   alloc_save__filter_changes to remove those elements, 
   which point to unused ref blocks. Also a special function
   igc_reloc_ref_ptr_nocheck is used to relocate
   'where' pointers. See comments in code.
11. In AC_OFFSET_ALLOCATED elements 60% of their size
   appears unused. We would like to define a smaller
   structure for them, but we don't want 
   enlarge the CPU time expense for checking types
   in loops.

Thus NO_INVISIBLE_LEVELS 1 reconstructs the optimization, 
which was lost while fixing the bug 688153 with the revision 5980.
Rather the behavior isn't strongly equivalent,
the overall logic is mostly same.

Now we commit this patch with new code disabled.
We'll enable it separately after the regression testing
of the algorithmically equivalent part.

EXPECTED DIFFERENCES :

None.

[src/isave.h src/gxalloc.h src/idosave.h src/igcref.c src/int.mak src/igc.c src/ialloc.c src/gsalloc.c src/isave.c]

2006-04-14T17:55:42.321007Z Ray Johnston

Indirect W, W2, Dw or DW2 values were not resolved at the correct point
which caused a check for 0 length W and W2 arrays to not work. Bug 688649.

[lib/pdf_font.ps]

2006-04-14T01:03:31.516512Z Dan Coby

Remove a piece of extra code that came in as part of the 'Named color' logic.

[src/gscdevn.c]

2006-04-13T04:24:47.344362Z Ray Johnston

Fix typo. IdoimSet was in RESOURCE_LIST instead of IdiomSet.
Thanks to "Edward" for spotting this. Bug 688644.

[src/bcwin32.mak src/openvms.mak src/ugcclib.mak src/macosx.mak src/watcw32.mak src/Makefile.in src/dvx-gcc.mak src/msvc32.mak src/unix-gcc.mak src/unixansi.mak src/macos-mcp.mak src/msvclib.mak src/os2.mak src/watclib.mak]

2006-04-11T05:56:23.659314Z Dan Coby

Fix for 688068 Problem with overprint in 1bit cmyk device.

DETAILS:

This problem was caused by an earlier change which was made for support
of ROPs in the GhostPCL product.  Logically there are some conflict
between the requirements for ROPs versus overprint.  See the discussion
in 688638 for the details.

Logically this change backs out the earlier change to big_map_color_rgb.
In actuality, a new routine call bit_decode_color was made which operates
like the earlier version of bit_map_color_rgb.  The new routine was created
since the current bit_map_color_rgb will be needed for ROP support.

[src/gdevbit.c]

2006-04-11T04:54:24.181044Z Ray Johnston

The .ResourceFile logic did not work with the %rom% device since it relied
on the 'status' operator. This change avoids the use of 'status' by using
the 'file' operator in a stopped context. Bug 687094.

DETAILS:

The %rom% device needs to add a 'status' function that comes up with some
reasonable results.

EXPECTED DIFFERENCES:

None.

[lib/gs_res.ps]

2006-04-06T00:30:46.126294Z Dan Coby

Fix for 688625 5x to 15x slowdown between 8.50 and 8.53 (ref#10273).

DETAILS:

The given test file specifies a graphics state for almost every line drawn.
As a result, over 380,000 extra transparency mask initializations are done.
The extra time occurred when the PDF transparency processing was changed
being passed through the clist.These extra initializations were using both
CPU time and clist memory (disk) space.

The fix consists of only processing PDF transparency features when it
is actually needed by the file.  Note:  This was already being done
for most PDF transparency operations but not for the mask initializtion.

[lib/pdf_ops.ps]

2006-04-03T13:43:22.538056Z Alex Cherepanov

Fix all obvious cases where the name of an operator for signalerror procedure
is searched in the dictionary stack instead of retrieving it from systemdict.
Bug 688548.

DIFFERENCES:
None

[lib/gs_lev2.ps lib/gs_img.ps lib/gs_dpnxt.ps lib/gs_cspace.ps]

2006-04-02T00:17:36.683425Z Ray Johnston

Fix rangecheck in shfill caused by floating point inaccuracies in the function
logic. Previous logic allowed for inaccuracy, but the value scaling was wrong
making the test too stringent. Bug 688574 for customer 531.

DETAILS:

This rangecheck failure was not consistent across various builds, but _was_
repeatable on peeves. The problem was a floating point calculation truncation
which caused a vaule to go outside of the defined range (in this case, the
value went negative and the limit was 0.0).

There was logic present in 'fn_1ItSg_is_monotonic' to allow for small
'out of bounds' conditions, but the value used was defined for a different
range and thus was too strict.

While fixing this (by splitting the 'small' values to different ones for
the 'b' range and the 'e' range) I also corrected many spelling errors
(s/noize/noise/ and s/beak/peak). I also regularized the small float
value to (float)1e-6 in the various modules.

[src/lib.mak src/gsfunc0.c src/gsfunc3.c src/gxpcopy.c]

2006-04-01T22:16:27.729522Z Alex Cherepanov

Work around a bug in GCC 2.96 for x86. Pre-load stack pages to avoid a SEGV.
Bug 688574.

DETAILS:
It is well known that GCC 2.96 for x86 sometimes forgets to adjust $esp
and leaves automatic variables at small distance below the stack pointer.
Apparently, when the access to the automatic variable causes a page fault
Linux sends a SEGV signal instead of committing the page if the access
happens below the stack pointer. Pre-loading the stack pages from a known
good context resolves the problem.

DIFFERENCES:
None.

[src/gs.c]

2006-04-01T15:09:59.196553Z Alex Cherepanov

Recognize PDF fonts by the first 4 bytes of the font stream. Simplify
Type 1 font reader and PFB font reader.
Bug 688569 from customer 850.

DETAILS:
Some PDF files mis-identify font type of the embedded font streams or
include raw PDF font streams. Length1, Length2, Length3 may be wrong or
missing. Adobe Acrobat corrects these types transparently to the user.

All PDF font streams can be easily recognized by the 1st 4 bytes of
the font stream. The PFB stream can be recognized by the 1st 2 bytes.

The Type 1 font reader doesn't need to follow 3-part structure of the
Type 1 font but interpret it as a single stream. PDF specifies that
Type 1 fonts with binary-encoded eexec  streams can be embedded. One can
imagine a binary eexec stream that is mis-identified as a hexadecimal
eexec stream by a standard PostScript eexec operator. So the encoded
stream was converted to hexadecimal stream before rev. 6568 . In
practice we've never seen a stream that need a hexadecimal conversion
but had several real hexadecimal streams. When the hexadecimal
conversion was removed in rev. 6568, handling of 3-part Type 1 structure
became a rudiment with is removed now.

Existing code restores the operand and dictionary stacks after the font
interpretation. So no extra code is required to support fonts without
the 3rd part - zeros and cleartomark.

These changes enable Ghostscript to interpret many kinds of malformed
font streams but reduce it's utility as a verification tool. Checking
of the declared type, subtype, and length parameters vs. actual values
has been moved to the bug 688627 and will be implemented later.

DIFFERENCES:
None

[lib/pdf_font.ps]

2006-04-01T13:35:02.551726Z Alex Cherepanov

Fix /ioerror when the length of the string data target is equal to number of
generated bytes. Calculate the exact number of \n characters inserted by
ASCIIHexEncode filter instead of the high bound
Bug 688569

DIFFERENCES:
None

[src/sstring.c]

2006-04-01T13:13:59.549095Z Alex Cherepanov

Enable redefinition of /image and /imagemask operators in PDF interpreter
whan DELAYBIND option is in effect.
Bug 688555

DETAILS:
pdf_draw.ps is loaded after gs_img.ps, gs_init.ps, gs_l2img.ps where /image and
/imagemask are redefined. So these names can be safely resolved at the
loading time, instead of taking the value from systemdict at run time as it was
done before.

DIFFERENCES:
None

[lib/pdf_draw.ps]

2006-03-31T01:07:31.896512Z Dan Coby

Fix for 688608 image rendered black in PDF-file

DETAILS:

The test file for this problem has several 1 bit DeviceGray images.  The file also uses
the 'Darken' blending mode.  This result of this blending mode is the darker of the
background and source colors.

The problem was that 1 bit DeviceGray images are handled by the copy_mon device procedure.
The PDF 1.4 transparency compositor devices were using the gx_default_copy_mono procedure.
However this routine first sets the specified area to black and then sets the white regions.
Since the entire area is first set to black, the blending operation always produced a
black result.

The fix consists of creating a new copy_mono procedure for the PDF 1.4 transparency
compositor devices.  The new routine does not set the entire area to black first.

[src/gdevp14.c]

2006-03-29T21:50:36.299258Z Ray Johnston

Document the new '-o' option. Also minor cleanup in the same area.

[doc/Use.htm]

2006-03-29T20:43:28.951336Z Ray Johnston

Correct double "" typo that made 'usage:' not work.

[toolbin/search-svn-revs]

2006-03-29T19:39:10.090689Z Raph Levien

Adds -o<fn> switch to command, which is essentially an alias for 
-sOutputFile=<fn>, -dNOPAUSE, and -dBATCH.

[src/imainarg.c]

2006-03-29T19:31:05.448360Z Ralph Giles

The luratech JPEG 2000 encoder defaults to lossless coding mode,
which doesn't offer any size advantages over the older DCT encode
filter. Instead ask for quality-based rate control at 60 on a scale
of 1-100. This also requires switching to the 9,7 wavelet from the
reversible 5,3.

[src/sjpx_luratech.c]

2006-03-28T01:05:49.592416Z Ray Johnston

Return a success code from the clist compression initialization functions.
Bug 688603. Thanks to "Nix" for spotting this.

DETAILS:

This problem actually existed with the LZW comoression init as well as ZLIB.

[src/gxclzlib.c src/gxcllzw.c]

2006-03-27T19:01:29.123835Z Ray Johnston

Fix typo in double inclusion protection.

[src/sjpx_luratech.h]

2006-03-27T18:53:39.250165Z Ray Johnston

Fix a problem handling ' " and \ characters that gave false postives when checkin
sources for C++ comments. Remove some modules from the 'skip' list that did not
belong there (IMHO) -- they were probably there due to previous false positives.

DETAILS:

This module was already sort of hackish. It works better, but probably can still
be fooled. At least we now ignore the character following a '\' and can handle
things like '"' and "'" without getting confused.

EXPECTED DIFFERENCES:

src/gdevpdfe.c will no longer be listed as having C++ comments.

[toolbin/tests/check_comments.py]

2006-03-25T01:38:29.250332Z Ralph Giles

Fix luratech-based encode filters. We now appear to work correctly.

DETAILS:

Invert the JBIG2 image data before passing it to the encoder library. We 
allocate a scratch buffer for this because the buffer we are passed in
the read cursor struct is marked const. We now produce output with the 
correct meaning for 0 and 1 bits, but the output of the jbig2 output 
device is now inverted.

In both the jbig2 and jpx encode filters, repeatedly grow dynamic 
buffers until they reach the required size instead of assuming a
single doubling will be sufficient. This fixes a segfault inside
the library compressing large JPX images.

[src/sjbig2_luratech.h src/sjbig2_luratech.c src/sjpx_luratech.c]

2006-03-24T23:58:42.888065Z Ralph Giles

Correct an unitialized variable warning.

[src/gdevjbig2.c]

2006-03-24T01:10:06.296187Z Alex Cherepanov

Use .languagelevel operator instead of languagelevel name to prevent
languagelevel redefinition to affect Ghostscript operation.
Bug 688583

DIFFERENCES:
None

[lib/gs_img.ps]

2006-03-23T19:32:06.035048Z Ray Johnston

Change PDF curve rendering to use 'accurate' curves. PostScript method
is retained for Adobe CPSI compatibility. Bug 688434.

EXPECTED DIFFERENCES:

All are varified as progressions (improvements). I will run update_specific
immediately after the patch is committed.

The file list is:

0.pdf
1_2001.pdf
1_pct_50_bang.pdf
86554321.pdf
Altona-Testsuite_p2_S_x3.pdf
Altona_Measure_1v1.pdf
Altona_Visual_bb_1v1_x3.pdf
Altona_Visual_sb_1v1_x3.pdf
BEST8-99-Path.fh7.pdf
BW0696FOLD1FRONT.pdf
Bug687724.pdf
Bug687828.pdf
Bug687840.pdf
DisplayedGood.pdf
DisplayedWrong.pdf
GS_Stroke_error.pdf
Openhuis_pdf_zw.pdf
PixelisAd.pdf
RodinCIDEmbed.pdf
S2_Digitalproof-Forum_x3k.pdf
SmoothShading.pdf
Svd.pdf
adesso8.pdf
ai2.pdf
annots.pdf
besttest.pdf
bugsample.pdf
bulletin.pdf
ca.pdf
chartab.pdf
chilis_black.pdf
chilis_red.pdf
file.pdf
file2.pdf
knight.pdf
messenger.pdf
messenger16.pdf
p2b-100.pdf
probe3.pdf
si_tg_brochure.pdf
time1.pdf

[lib/pdf_main.ps]

2006-03-23T12:39:23.850800Z leonardo

Fix (pdfwrite) : The font copying and the font comparizon didn't work with segmented True Type data.

DETAILS :

Bug 688611 "Font included in the PDF file several times".

In Postscript documents Trus Type font data are segmented
to fit into a maximal Postscript string.
If a True Type table is bigger, it must be segmented.
When creating a stable font copy such case is rare,
because we copy small tables only (skipping such big tables as 'glyph'
in order to create a font subset).
In the supplied test case True Type font is so wrongly segmented,
that 'cvt' table consistes of 2 segments, rather it could fit into a single string.
Due to that the old code accessed occasional data after a segment break.

We believe that the test document is an incorrect Postscript,
but we decided to do effort for handling this case.

EXPECTED DIFFERENCES :

None.

[src/gxfcopy.c src/gdevpsft.c]

2006-03-23T09:56:47.387302Z leonardo

(pdfwrite) : Integrating Luratech modules for JPXEncode, JBIG2Encode.

DETAILS :

This imolements a better filter initialization and 
a proper writing of filter names to the PDF output file.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfx.h src/gdevpdfu.c src/gdevpsdi.c src/devs.mak]

2006-03-22T18:35:22.304671Z Raph Levien

FIX: Fixes segfault in wts persistent cache logic when no cache key is
generated. Fixes bug #688132.

[src/gswts.c]

2006-03-22T18:10:43.455701Z Ralph Giles

Fix printafm to properly handle files with more than 256 glyphs. Patch 
from Michail Vidiassov. Bug 688610.

[lib/printafm.ps]

2006-03-22T16:44:15.233805Z leonardo

(pdfwrite) : Integrating Luratech modules for JPXEncode, JBIG2Encode.

DETAILS :

This is a preliminary implementation.
The new filters in this revision isn't working well and need more debugging.

To build Ghostscript with new filters, specify 
"JBIG2_LIB=luratech JPX_LIB=luratech" in the command line when running 'make' utility.
Use this Postscript prefix to invoke new filters :

<< /ColorImageFilter /JPXEncode
   /GrayImageFilter /JPXEncode
   /MonoImageFilter /JBIG2Encode
>> setdistillerparams

JPXEncode requires CompatibilityLevel=1.5 , 
JBIG2Encode requires CompatibilityLevel=1.4 . 

IMPORTANT NOTE :
The change to gdevpsdi.c near line 239 slightly changes
the behavior in the case when no new filters involved.
When AutoFilter=true, the old code completely disregarded the filter 
specified in ColorImageFilter, GrayImageFilter.
The new code leaves it as a candidate for the automatic choice
if it is a non-lossless filter.

EXPECTED DIFFERENCES :

None.

[src/gdevpsdp.c src/gdevpdfp.c src/gdevpsdi.c src/devs.mak]

2006-03-22T14:56:00.546050Z leonardo

Fix (pdfwrite) : A minor code cleanup.

DETAILS :

This is a preparation for integrating Luratech modules for JPXEncode, JBIG2Encode.
This change is algorithmicly equivalent.

1. Allowed CompatibilityLevel=1.5 . Old code replaced with 1.4 .
   The new code behaves same as the old one.

2. In gdevpsdi.c set_defaults was called twice for same filter in some cases.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfp.c src/gdevpsdi.c]

2006-03-22T08:43:11.486957Z leonardo

Fix : MSVC, Cygwin/gcc warnings.

DETAILS :

Note 1:
This patch inserts 2 initializations into gswts.c against an indeterminzm,
but we don't case about correct values in those cases.

Note 2:
This patch removes the messing pointer type cast insetred with the last patch.

EXPECTED DIFFERENCES :

None.

[src/gsimage.c src/gxfcopy.c src/gxwts.h src/gdevpdfg.c src/gswts.c]

2006-03-22T08:04:49.413437Z Ray Johnston

Fix compile problems and MSVC warnings.

[src/gxwts.h src/gswts.c]

2006-03-22T07:05:00.066628Z Raph Levien

Patch to put WTS halftones in clist so that WTS halftoning works in
banded mode. Also uses persistent cache when available to save time
initializing the WTS halftone structures. Some memory cleanup and
optimization work remains.

[src/gp_unix_cache.c src/gswts.h src/gshtscr.c src/gxdhtserial.c src/gxwts.h src/gsht.c src/gswts.c src/gxclrast.c src/gxdevndi.c src/gp.h src/gxclimag.c]

2006-03-22T04:58:45.401369Z Alex Cherepanov

Add ToWrite dictionary to complete the environment for pdfwrite.ps procedures
and enumerate JBIG2Globals parameter before the image to avoid recursion during
stream copying.
Bug 688556

DIFFERENCES:
None

[lib/pdfopt.ps]

2006-03-21T12:09:23.846370Z leonardo

Fix (pdfwrite) : Order embedded fonts against an indeterminizm.

DETAILS :

Bug 688561 "PDF content depends on memory allocation."

The old code writes font data depending on glyph name indices,
which are Postscript name indices and depend on memory allocation order,
which depend on occasional factors and events.

This patch implements a font data ordering by glyph names,
which are strings. The ordering is implemented for
stable font copies, which only represent an embedded font
before writing it.

See comments added into gxfcopy.h .

EXPECTED DIFFERENCES :

None.

[src/gdevpdtb.c src/gxfcopy.c src/gxfcopy.h]

2006-03-20T23:35:52.190540Z Ralph Giles

Implement RGB and CMYK output in the example JPX output device. The CMYK 
device isn't confirmed to be correct.

[src/devs.mak src/gdevjpx.c]

2006-03-17T20:26:58.555712Z Ralph Giles

Add the new luratech integration and testing files to the 
file list in the documentation.

[doc/Develop.htm]

2006-03-17T20:16:46.140063Z Ralph Giles

Add missing revision comment lines.

[src/gscedata.h src/gdevpdtv.c src/gdevpdtv.h src/gscedata.c]

2006-03-17T07:19:58.022114Z leonardo

Type 1 hinter : More improvements (continued 3).

DETAILS :

The revision 6642 appears incorrect.
We thought that the 'uninitialized' warning was issued
due to the compiler stupidity, however it appears useful.
Those variables could be uninitialized due to 
the operator 'continue' above their assignments.
Revisions before 6642 are indeterministic.

This patch provides a correct fix for that error.
The last patch fixed the indeterminizm,
but the computation was inaccurate.

EXPECTED DIFFERENCES :

normal 72 dpi :

"Bug687724.pdf" 
"chess.ps" 
"MagicEye.pdf" 

normal 300 dpi :

"86554321.pdf" 
"alphabet.ps" 
"t\Bug687724.pdf" 
"t\fonts.pdf" 
"t\MagicEye.pdf" 
"t\PixelisAd.pdf" 
"t\prob.pdf" 
"t\spec_gs.pdf" 
"t\spec_gv.pdf" 

pdfwrite 72 dpi :

"Bug687724.pdf" 
"chess.ps" 
"t\Bug687724.pdf" 
"t\chess.ps" 
"t\MagicEye.pdf" 

pdfwrite 300 dpi :

"86554321.pdf" 
"alphabet.ps" 
"Bug687603.ps" 
"Bug687724.pdf" 
"fonts.pdf" 
"MagicEye.pdf" 
"PixelisAd.pdf" 
"prob.pdf" 
"spec_gs.pdf" 
"spec_gv.pdf"

[src/gxhintn.c]

2006-03-16T19:59:07.187142Z Ray Johnston

Remove individual credit from 'usage'.

[toolbin/search-svn-revs]

2006-03-15T19:56:58.028675Z Ralph Giles

Remove excessive debugging output.

[src/sjpx_luratech.c]

2006-03-15T19:45:00.902158Z Ray Johnston

Fix color procs to get gray scale instead of _b_w_.

[src/gdevjpx.c]

2006-03-15T14:35:27.348378Z Alex Cherepanov

Use gput procedure to store data in the PDF graphic state instead of the plain
def because initial graphic state is a read-only dictionary.
Bug 688593 from customer 870.

DIFFERENCES:
None

[lib/gs_ttf.ps]

2006-03-15T06:33:42.151793Z Ralph Giles

Add test frameworks for the JBIG2 and JPX encode filters. This code 
only depends on the encoder streams being available, but currently
that is only possible when building against the proprietary Luratech
implementation libraries.

[src/gdevjbig2.c src/gdevjpx.c src/devs.mak]

2006-03-15T05:46:07.272587Z Ralph Giles

Initial check in of JPX encode filter support based on the Luratech LWF 
JP2 library.

[src/sjpx_luratech.h src/sjpx_luratech.c]

2006-03-15T05:43:50.703217Z Ralph Giles

Commit header changes associated with the previous commit.

[src/sjpx_luratech.h]

2006-03-15T05:41:25.246375Z Ralph Giles

Instead of using the dimensions and depth of the first image component,
take the maximum of the values for each component, giving the highest 
resolution image. The library doesn't supply the information from 
the Image Header Box which should be the actual target resolution, 
so we still need to implement passing the target image dimensions 
from the image dictionary for complete robustness. 

Also, some code clean up and improvement of debugging messages.

[src/sjpx_luratech.c]

2006-03-13T21:11:43.073623Z stefan

Use vsprintf for currently unused gs_throw_imp for now.

[src/gsmisc.c]

2006-03-13T20:53:43.657512Z stefan

remove abberant include of stdint.h

[src/gdevpdfe.c]

2006-03-13T20:37:32.485353Z Ray Johnston

Add warning about potential misleading results as pointed out by Igor.
Credit him with this observation in the 'usage' explanantion.

[toolbin/search-svn-revs]

2006-03-13T19:52:46.775800Z Ralph Giles

Fix a typo that was introduced in r6651.

[src/gserror.h]

2006-03-13T19:41:07.288420Z Ralph Giles

Use the Id keyword instead of the old RCSFile and Revision.

[src/gserror.h]

2006-03-13T16:18:19.024819Z stefan

changed copyright headers

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src/iconf.h src/dwnodll.c doc/C-style.htm src/dwdll.c src/interp.h src/gdevm40.c src/dwdll.h src/gsiodisk.c src/sjpegd.c src/gspath2.h src/gdevpsim.c src/dvx-tail.mak src/errors.h src/gp_msprn.c src/gxino12b.c src/gdevmgr.c src/gdevpdfp.c src/gxacpath.c src/gslib.c src/ziodev.c src/gdevmgr.h src/iccinit0.c src/sdcte.c doc/Release.htm src/gxccache.c src/gslib.h src/ifont1.h src/zfunc0.c src/gxmatrix.h src/ifunc.h src/gxfdrop.c src/gp_unifs.c src/gxobj.h src/gxfdrop.h src/gxhintn.c src/gsiorom.c src/isstate.h src/gdevm2.c src/gxhintn.h src/gsiorom.h src/ifilter2.h src/gdevwddb.c src/gspath.c src/gxpcopy.c src/gscolor3.c src/gspath.h src/gdevdjet.c src/gscolor3.h src/rinkj/rinkj-dither.c src/zpath1.c doc/History3.htm src/gdevm24.c src/gp_unix.c src/rinkj/rinkj-dither.h src/inamedef.h src/ilocate.c src/gxdcolor.c src/gdevpm.c src/gscdefs.h src/vmsmath.h src/gscencs.c src/gxdcolor.h src/gzstate.h src/gdevbmpc.c src/gdevpm.h src/gschar0.c src/iht.h src/zdevice.c src/gscie.c src/gscencs.h src/ifapi.h src/gxi16bit.c src/zimage2.c src/gscie.h src/iastate.h src/pipe_.h src/gxbitops.h src/ipacked.h src/gpsync.h src/gsfunc3.c src/gdevperm.c src/gswin.rc src/gsccode.h src/gxpath2.c src/gsfunc3.h src/gp_strdl.c src/gxdevbuf.h src/genconf.c src/sa85d.c src/gscsel.h src/sa85d.h src/openvms.mmk src/zcolor2.c src/gp_stdia.c src/gdev3b1.c src/gxttf.h src/ttconf.h src/genht.c src/zgeneric.c src/gxarith.h src/gxclrect.c src/gsshade.c src/gsshade.h src/msvclib.mak src/gsicc.c src/zcid.c src/dwsetup.cpp src/gdevp2up.c src/gsicc.h src/dwuninst.rc src/gdevpdfr.c src/gdevppla.c src/zmisc1.c src/gsdevmem.c src/gdevppla.h src/wccommon.mak src/gxfcopy.c src/gdevpsft.c src/gxfcopy.h src/gsmisc.c src/gdevtfnx.c src/gdevm4.c src/gxicolor.c src/ldf_jb2.mak src/gxpageq.c src/winint.mak src/gsdparam.c doc/Make.htm doc/Details8.htm src/gxpageq.h src/gxdevrop.h src/gsstype.h src/gdevprn.c src/gdevcif.c src/gxdevndi.c doc/History4.htm src/gdevprn.h src/gxdevndi.h src/iesdata.h src/dxmain.c src/gdevpdfc.c src/iapi.c src/spngpx.h src/btoken.h src/gdevherc.c src/gdevpdfc.h src/iapi.h src/zcharout.c src/gdevepsc.c src/gxdevice.h src/gximage2.c src/srld.c src/zht.c src/gxshade4.c src/sjpx_luratech.c src/gxshade4.h src/iinit.c src/watcw32.mak src/gdevstc1.c src/gxbitmap.h src/sjpx_luratech.h src/gxccman.c src/iinit.h src/gsalphac.c src/gxshade.c src/sbtx.h src/zfunc.c src/gsclipsr.c src/gsalphac.h src/gxshade.h src/gsrop.c src/gsclipsr.h src/idict.c src/gxistate.h src/gsrop.h src/gscoord.c src/idict.h src/macos_carbon_d_pre.h src/gxcolor2.h src/gscoord.h src/genarch.c src/gscedata.c doc/Projects.htm src/gxcindex.h src/gscpm.h src/gscedata.h src/gp_nsync.c src/gdevdgbr.c src/gdevmr2n.c src/gdevdsha.c src/zlib.mak src/gdevxcf.c src/gxtext.h src/zchar1.c src/gscdevn.c src/gscdevn.h src/gdevpdft.c src/gdevpsdi.c src/shcgen.c src/gsiparam.h src/zmisc3.c src/zfapi.c src/zfunc4.c src/malloc_.h src/shcgen.h src/gscpixel.c src/gscpixel.h src/gdevplnx.c src/dirent_.h src/gdevplnx.h src/zfzlib.c src/Makefile.in src/gscsepr.c src/iutil2.c doc/History5.htm src/gscsepr.h src/gxwts.c src/ipcolor.h src/gsimage.c src/sjpeg.h src/iutil2.h src/gstext.c src/gxwts.h src/gsimage.h src/msvccmd.mak src/gstext.h src/gdevpdfe.c src/rinkj/rinkj-byte-stream.c src/gsflip.c src/rinkj/rinkj-byte-stream.h src/gsflip.h src/gdevdljm.c src/zdpnext.c src/geninit.c src/gdevdljm.h src/zusparam.c src/gxchrout.c src/gximage4.c src/gxchrout.h src/gxshade6.c src/gxcoord.h src/gdevpdf.c src/macosx.mak src/tttypes.h src/zpacked.c src/gdevstc3.c src/gsparamx.c src/gp_dosfe.c src/iutil.c src/szlibc.c src/gsparamx.h src/gdevpng.c src/iutil.h src/gzpath.h src/sfxstdio.c src/gxcdevn.h src/sjbig2_luratech.c src/gxropc.h src/gxfcid.h src/gxfont.h src/sjbig2_luratech.h src/gdevccr.c src/mkromfs.c src/gslibctx.c src/gdevdcrd.c src/unix-dll.mak src/gslibctx.h src/zbseq.c src/ziodevsc.c src/gdevdcrd.h src/gdevl31s.c src/zfrsd.c src/iosdata.h src/gdevdjtc.c src/gdevmacpictop.h src/gxino16b.c src/gdevpcx.c src/gdevpxop.h src/zfileio.c src/slzwd.c src/gdevpdfv.c src/gxpflat.c src/gxifast.c src/dwimg.c src/fapi_ft.c src/zsysvm.c src/gsimpath.c src/dwimg.h src/gdevx.c src/gsmemlok.c src/gsos2.rc src/gximage.c src/gdevx.h src/gsmemlok.h src/ziodevs.c src/unixansi.mak src/gdevpsfx.c src/gximage.h src/gscspace.c src/gdevmacttf.h src/gdevm8.c src/gdevpnga.c src/gscspace.h src/gsropc.c src/gsxfont.h src/ttfsfnt.h src/gsjconf.h src/gsfcid.c src/zstack.c src/gsfont.c src/gsropc.h src/gsfont.h src/isave.c doc/History6.htm src/isave.h src/gdevm64.c src/zdict.c src/gxfrac.h src/gx.h src/iccfont.c src/gdevpdfg.c src/png_.h src/gdevps.c src/gxcllzw.c src/gdevpdfg.h src/gxhttile.h doc/API.htm src/gdevpdtb.c src/gsdps1.c src/time_.h src/gdevpdtb.h src/ttfinp.c src/gshsb.c src/pcwin.mak src/vms_x_fix.h src/ziodevst.c src/smtf.c src/ttfinp.h src/x_.h src/gdevtifs.c src/gshsb.h src/smtf.h src/gdevtifs.h src/gximono.c src/fapiufst.c src/szlibe.c src/gxctable.c src/main.h src/gp_vms.c src/gp_iwatc.c src/ugcclib.mak src/gxctable.h src/gdev8bcm.c src/dwsetup.h src/gp_os9.c src/gdevbj10.c src/gxclipm.c src/gdev8bcm.h src/zpaint.c src/stdpre.h src/iplugin.c src/gxclipm.h src/gsgdata.c]

2006-03-12T20:26:06.745233Z leonardo

Fix : gx_path_merge_contacting_contours incorrectly released path segments.
DETAILS :

Bug 688591 "Garbager problem with -r72 ppmraw S2_Digitalproof-Forum_x3k.pdf".
Path segments are always allocated in stable memory.

EXPECTED DIFFERENCES :

None.

[src/gxpcopy.c]

2006-03-12T06:28:39.018444Z Ralph Giles

Set the executable property on the new search script.

[toolbin/search-svn-revs]

2006-03-12T02:47:35.883320Z Ray Johnston

Add a bash script to search for the first svn rev. that succeeds. Binary search
is used to decide which rev to try next.

DETAILS:

There is a 'usage' if no parameters are given. If Ghostscript exits with a
non-zero exit code, then the 'test' operand is not needed. For example,
if rev. 6170 corresponds to 8.53, and the current HEAD is 6647, then the
following will find the first revision which succeeds (6579):

search-svn-revs 6170 6647 'bin/gs -dBATCH -dNODISPLAY -dNOPAUSE -q coloraerial.pdf'

The gs output is captured in 'test.log' so that output can be examined (for
instance using 'grep') for status conditions where the gs exit code is not
useful.

Note that if this is run on casper, where the svn repository is local, then
changing the "svn co ..." line to from "svn+ssh://svn.ghostscript.com/" to
"file:///" will perform the checkout more quickly.

There is a guess made for GS_LIB which is concatenated to the previous definition
(if any), to ./lib:/home/regression/fonts which also works on casper or peeves.

[toolbin/search-svn-revs]

2006-03-10T16:20:52.667102Z leonardo

Fix : Shading fill applied a wrong path adjustment.
DETAILS :

Bug 688568 "Shading fill applies a wrong path adjustment".
See also the log message of the patch
http://ghostscript.com/pipermail/gs-cvs/2006-February/006379.html

1. Removes the OLD_CODE_COMPATIBILITY flag.
2. An indeterministic bug while computing fill adjustment
   when gx_cpath_intersect_with_params is called (indirectly) from gs_shfill.
3. gs_shfill didn't apply fill adjustment.

EXPECTED DIFFERENCES :

"464-01-fixed.ps" 
"gradmesh.ai" 
"S2_Digitalproof-Forum_x3k.pdf" 
"shading_prob_800.ps" 
"SmoothShading.pdf" 
"STEUER-RollingMesh 1(linear).ai" 
"STEUER-RollingMesh 2(radial).ai" 
"Testform.v1.0.2.pdf"

[src/gxcpath.c src/gxfill.c src/gscolor3.c]

2006-03-10T08:27:48.551311Z leonardo

pdfwrite : A simplified implementation for ColorConversionStrategy, continued 4.

DETAILS :

Fixing a crash with imagemask.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfi.c]

2006-03-09T23:15:58.290889Z Dan Coby

Add a description of the files which were added for the 'named color' callback.

[doc/Develop.htm]

2006-03-09T22:59:58.579801Z Dan Coby

Set the Id keyword for the 'named color' files.

[src/gsnamecl.h src/gsncdemo.c src/gsnamecl.c]

2006-03-09T22:24:34.708728Z Alex Cherepanov

Add missing initialization to the streams allocated on the stack or in raw
memory.
Bug 688572

DETAILS:
The following code doesn't initialize all the fields in the stream structure.
stream s; sread_string(&s, ...); but it initializes enough fields to be mostly
working. The bug has been detected by Valgrind.


DIFFERENCES:
None

[src/gdevpdfo.c src/gxfcopy.c src/gdevpdfc.c src/gxshade.c src/gdevpdfu.c src/gdevps.c src/gxclpath.c]

2006-03-09T11:09:19.401813Z leonardo

Fix : Cygwin/gcc warnings.

DETAILS :

1. Removed unuseful variable in gstype42.c .
2. The compiler claims an unititialized variable due to its stupidity.
   Forced an initialization to quiet the misleading warning.

EXPECTED DIFFERENCES :

None.

[src/gxhintn.c src/gstype42.c]

2006-03-09T11:05:49.196378Z leonardo

pdfwrite : A simplified implementation for ColorConversionStrategy, continued 3.

DETAILS :

1. is_pattern2_allowed_in_stradegy was underimplemented.
2. Fixed the spelling in "stradegy".

EXPECTED DIFFERENCES :

None.

[src/gdevpdfg.c]

2006-03-09T10:54:46.558875Z leonardo

pdfwrite : A simplified implementation for ColorConversionStrategy, continued 2.

DETAILS :

This implements color conversion for images.

1. make_device_color_space is factored out from psdf_setup_image_colors_filter,
because the substituted color spase is needed for pdf_begin_write_image,
which works before installing the image colors filter.

2. In pdf_begin_typed_image the new variables pcs_device and pcs_orig
provide a right logics for the color space substitution.

EXPECTED DIFFERENCES :

None.

[doc/Ps2pdf.htm src/gdevpsdi.c src/gdevpsdf.h src/gdevpdfi.c]

2006-03-09T02:18:37.723914Z Alex Cherepanov

Work around an internal compiler error C1001 in MSVC 7.1.3088. 
Split expressionss with multiple type conversions into 2 expressions.
Bug 688579

DIFFERENCES:
None

[src/gdevpdfe.c]

2006-03-08T08:06:00.462700Z leonardo

Fix : MSVC8 warnings.

DETAILS :

Type cast.

EXPECTED DIFFERENCES :

None.

[src/imain.c src/zfile.c]

2006-03-08T01:15:50.548475Z Ralph Giles

Fix filename lookup in the %rom% device to match the lenth of the 
requested path, not just a common start.

[src/gsiorom.c]

2006-03-08T00:21:56.952083Z Ralph Giles

Fix the unix install to include Fontmap.GS. This was the cause of 
688567.

DETAILS:

The mkromfs utility uses the passed paths as templates for file 
enumeration, so EXTRA_INIT_FILES was added containing only
'Fontmap' and 'FAPI' as a shorthand for the collections "Fontmap*"
and "FAPI*". However, this variable is also used in unixinst.mak
as a literal list of files to install, and so only 'Fontmap' was
actually being installed.

This fix remains confusing, but in practice handles the install.

[src/int.mak src/unixinst.mak]

2006-03-07T05:19:23.913236Z Ray Johnston

Handle yet another PDF that Acrobat Reader accepts silently that does not
conform to the specification. In this case the /Subtype is /TrueType but
the font is in the /FontFile, not the FontFile2 or FontFile3 stream.
Bug #688585 for customer #780.

DETAILS:

As usual, we issue a descriptive pdfformaterror message complaining about
the non-conformance.

[lib/pdf_font.ps]

2006-03-06T21:55:46.036109Z Ralph Giles

Calculate the input image stride in the jbig2encode stream init 
procedure so the caller doesn't have to.

[src/sjbig2_luratech.c]

2006-03-06T19:54:28.434131Z Ralph Giles

Fix a problem with CMYK JPXDecode filter image streams.

DETAILS:

The Luratech jp2 decoder does not return a general image size for CMYK 
images (this seems to be a bug) or for images with subsampled 
components. Therefore we use the dimensions of the zeroth component
rather than querying the overall image (component -1).

When the JPXDecode filter implementation is extended to pass the 
required Colorspace information from the image dictionary, it should
also pass the specified width and height of the image, since this
is the actual specification the filter must produce data for.

[src/sjpx_luratech.c]

2006-03-05T21:28:16.082867Z Ray Johnston

Move init files on %rom% device to lib directory prefix (%rom%lib/). This
prefix is used independent of the host OS. Requested by Ralph and Stefan.
The -d destination prefix might be useful for adding other directories
from other source directories to explicit locations in the %rom% device.

[src/imain.c src/mkromfs.c src/int.mak]

2006-03-02T14:20:22.695510Z Ray Johnston

Increase the MSVC compiler heap size to allow compilation of large initializers
for the %rom% device. The current setting worked with all Resource files, 35 PS
Type 1 fonts and 17 CJK fonts, the largest of which was the 12.2Mb MOEKai-Regular.

[src/msvccmd.mak]

2006-03-01T20:51:32.316771Z Ray Johnston

Fix opening of lib files so that %rom% files can be found. Previous code
only worked for default (os) device. Change iccinit1 so that gs_init.ps
is opened with .libfile allowing gs_init.ps to be changed even when
COMPILE_INITS=1. Remove another vestige of the old 'static resource'
approach that is no longer needed by COMPILE_INITS=1.

DETAILS:

This was a moderate amount of surgery, but was functionally extracted
from the old lib_fopen_with_libpaths and merged into lib_open_file
which now returns a PS file object. The lib_fopen now gets the FILE *
pointer from the stream structure for use in processing @ files.

Since the -I paths and the environment GS_LIB paths precede the
%rom% device (present when COMPILE_INITS=1) it is now eay to supersede
the init files, cidfmap, Fontmap, during development or debug, so 
there is little downside to running COMPILE_INITS=1 other than making
the executable bigger (6.6Mb vs 3.3Mb with the current CMaps). Defining
the GenericResourceDir string (using -s) on the command line also still
works since the PS code in iccinit1.c only sets this if it is not
predefined. The upside to having COMPILE_INITS=1 is that the gs
executable is fully self contained and does not need to be 'installed'.

If we built in the fonts (in the Resource/Fonts directory) then even
these aren't needed externally. It might reduce some of the common newbie
problems using Ghostscript. Then the executable grows to a healthy 9.9Mb
(fonts don't compress hardly at all currently).

EXPECTED DIFFERENCES.

None.

[src/imain.c lib/gs_res.ps src/iccinit1.c src/files.h src/zfile.c]

2006-03-01T19:23:16.175578Z Ray Johnston

Add missing files that were part of %rom% implementation.

[doc/Develop.htm]

2006-03-01T02:23:08.031658Z Dan Coby

Clean up for the last commit for 688575.  The previous commit had problems with the gcc compiler.

[src/gsnamecl.h]

2006-03-01T01:53:29.361859Z Dan Coby

Implement enhancement 688575 Add a cal back mechanism for support of PANTONE
or other special spot colors

DETAILS:

Ghostscript currently does not current have a mechanism for special handling 
of PANTONE or other special spot colors.

Currently all spot colors, in either a DeviceN or a Separation color space, 
are either processed via the alternate tint transform for the color space, or 
treated as a separation (as in the tiffsep device).

Obtaining the proper appearance of PANTONE or other special sets of spot 
colors, when custom inks are not available, usually depends upon values which 
are specific the devices inks, media, etc.  This is not usually handled 
properly by the tint transform function.

This enhancement adds a call back mechanism to allow custom processing of 
DeviceN and Separation color spaces by the calling application.

A description of the implementation is present in the comment block at
the start of src/gsnamecl.c.  An example implementation is provided in
src/gsncdemo.c.  The example implemenation shows how to interface with
the various Ghostscript structures and routines.  The example implementation
only contains a few demo colors.

The entire implemenation is conditionally compiled by a switch called
ENABLE_NAMED_COLOR_CALLBACK in src/gsnamecl.h.  Currently this switch
is set to disable the implementation.

[src/lib.mak src/gscspace.h src/gxistate.h src/gsnamecl.h src/gsdparam.c src/gsncdemo.c src/int.mak src/gxdevice.h src/gscsepr.c src/gsnamecl.c src/gscdevn.c src/gxdevcli.h]

2006-02-28T21:52:39.567783Z Ralph Giles

Project the WIN32 assembly from compilation on WIN64.

[jasper/src/libjasper/jpc/jpc_qmfb.c]

2006-02-28T21:21:30.311038Z Ralph Giles

Fix a problem with the jasper assembly code. Bug 688545.

[jasper/src/libjasper/jpc/jpc_qmfb.c]

2006-02-28T20:51:29.732995Z Ralph Giles

Rough support for a JBIG2 encoder stream using the Luratech 
implementation.

[src/sjbig2_luratech.h src/sjbig2_luratech.c]

2006-02-28T05:45:20.159028Z Ralph Giles

Report error codes returned by the lwf_jp2 library to allow better bug 
reports.

[src/sjpx_luratech.c]

2006-02-28T01:17:35.281917Z Ray Johnston

Remove deprecated module. No longer used for MS Windows.

[src/gp_msio.c]

2006-02-27T21:15:43.124755Z Ralph Giles

Output more debugging information with -Zw instead of switching on the 
special JBIG2_DEBUG preprocessor symbol.

[src/sjbig2.c src/sjbig2_luratech.c]

2006-02-24T21:07:18.367421Z leonardo

Fix : A slow rendering of a colored halftone (2nd attempt).

DETAILS :

Bug 688537 "A very slow rendering to spotcmyk".

The first attempt caused a regression with pkmraw and
has been undone. This patch accounts pkmraw effects,
which are explained below as "Auxiliary changes".

This patch creates a special branch in gx_default_fill_path 
for filling a path with a colored halftone. 
It installs a clipper device and then renders 
a rectangle through it, using the halftone color painting method immediately.

Auxiliary changes : 
The new branch in gx_default_fill_path calls gx_cpath_intersect
for intersecting the filling path with the clipping path.
The latter calls gx_default_fill_path again for 
converting a path into a rectangular clip list. 
Now we pass the fill adjastment parameters 
of the main gx_default_fill_path invocation
to the inner invocation.
Doing so because we need the intersection to be closer to
what the regular algorithm fills. The new function
gx_cpath_intersect_with_params works for that.
Particularly it causes dropout prevention to work 
for clipping, when a character is filled with a halftone.

The clip list accumulator device now sets
gx_device::memory to a real memory manager.
Before now it was NULL. The new code
uses it to allocate working data for the dropout prevention code.

Besides that, gx_cpath_intersect_with_params
now applies fill adjustment in the special 
branch for a rectangular path intersection.

The flag OLD_CODE_COMPATIBILITY minimizes raster differences 
for easier testing. It should be removed later,
because we believe that the old code is not perfect :
it doesn't pass fill adjustment through gx_cpath_intersect
while filling with a shading color. 

EXPECTED DIFFERENCES :

None.

[src/lib.mak src/gxcpath.c src/gxacpath.c src/gxpath.h src/gxfill.c src/gzacpath.h]

2006-02-24T16:14:12.132166Z leonardo

Type 1 hinter : More improvements (continued 2).

DETAILS :

An indeterministic bug in the last patch.

EXPECTED DIFFERENCES :

normal 72 dpi :
"Bug687845.ps" 
"japan.ps"

normal 300 dpi :
Bug687889.pdf 

pdfwrite 72 dpi :

"Bug687603.ps" 
"Bug687845.ps" 
"Bug687889.pdf" 
"japan.ps" 
"NECPNTD.pdf" 
 
pdfwrite 300 dpi :
"Bug687698.ps" 
"Bug687889.pdf" 
"japan.ps"

[src/gxhintn.c]

2006-02-23T17:27:22.487919Z Ray Johnston

FIx output format handling for -sOutputFile string. Thanks to Gh Savulescu
for the detailed analysis and patch. Bug 687621 for customers 670 and 770.
--This line, and th se below, will be ignored--

M    src/gsdevice.c
M    src/gdevupd.c
M    doc/Use.htm

[src/gdevupd.c doc/Use.htm src/gsdevice.c]

2006-02-23T07:18:29.475220Z Dan Coby

Fix for 688551 Need to process transparency in annot appearance streams.

DETAILS:

The fix involves 2 pieces.

1.  Add logic to pageusestransparency to detect if transparency is used
inside of an annotation.  As part of this effort, the logic for detecting
the use of transparency inside of an ExtGState dict was separated into a
separate procedure.

2.  Move the drawing of annotations was moved into showpagecontents.  This
was done since there so that the draw annotation logic is inside of the
push/pop pdf 1.4 transparency device logic.

[lib/pdf_main.ps]

2006-02-23T01:02:15.987199Z Ray Johnston

Remove module that is no longer used by newer COMPILE_INITS method.

[lib/gs_stres.ps]

2006-02-22T23:47:17.158224Z leonardo

Fix (gxfill) : Unwinding the revision 5699 change due to regressions.

DETAILS :

The patch
http://ghostscript.com/pipermail/gs-cvs/2006-February/006361.html
caused regressions with pkmraw -r72 154-01.ps in
http://ghostscript.com/pipermail/gs-regression/2006-February/001856.html

This reopens the bug
Bug 688537 "A very slow rendering to spotcmyk".

Note that another change was applied to gxfill.c between 5699 and now.

EXPECTED DIFFERENCES :

Should fix 2006-02-22 regressions.

[src/gxfill.c]

2006-02-22T21:28:01.105887Z Ralph Giles

Document in the generated gsromfs.c which target endianness the file
was built from, to make it easier to track down the source of non-
portability.

[src/mkromfs.c src/int.mak]

2006-02-22T19:28:07.197474Z Ray Johnston

Fix mkromfs to generate 32-bit big_endian values in memory, not native
byte ordering. Corresponding change in gsiorom.c to always read big_endian
32-bit values.

[src/mkromfs.c src/gsiorom.c]

2006-02-22T18:01:07.387840Z leonardo

Fix (gxfill) : The scanline algorithm could miss a spot boundary.

DETAILS :

Bug 688558 "Incorrect filled path rendering with .2 setflat".

1. merge_ranges wrongly computed the curve end point
   when the curve is scanned in the backward direction
   in gxfill.c (the real bug).

2. Propagates error code from step_al in gxfillsl.h
   (a minor fix).

3. Fixes a typoe in a comment in gxpflat.c .


EXPECTED DIFFERENCES :

None.

[src/gxfill.c src/gxpflat.c src/gxfillsl.h]

2006-02-22T12:59:54.243717Z leonardo

Fix : An MSVC warning and C style in a recent patch.

EXPECTED DIFFERENCES :

None.

[src/imain.c]

2006-02-22T12:10:10.472356Z leonardo

Type 1 hinter : More improvements (continued 2).

DETAILS :

Define PRESERVE_STEM_SLANT for easier experimenting with 
the "preserve stem slant" feature.
See comment in code.

This change is algorithmically equivalent.

EXPECTED DIFFERENCES :

None.

[src/gxhintn.c]

2006-02-22T07:28:25.271395Z Ray Johnston

Remove CWD_PREFIX from makefiles -- mkromfs file list is reordered. Add
the %rom% device to the LIBPATH list in imain.c so that .libfile works.
Also export print_resource_usage for use in non-debug builds. Thanks to
Ralph Giles for the suggestions.

[src/openvms.mak src/macosx.mak src/int.mak src/watcw32.mak src/dvx-gcc.mak src/unixansi.mak src/msvclib.mak src/os2.mak src/bcwin32.mak src/imain.c src/ugcclib.mak src/Makefile.in src/unix-gcc.mak src/msvc32.mak src/iccinit1.c src/macos-mcp.mak src/watclib.mak]

2006-02-22T04:53:42.526904Z Ralph Giles

Document the pexit_code and user_errors arguments to gsapi_run_string*() 
and provide an example for how to parse a PDF file from inside the 
interpreter. Bug 688549.

[doc/API.htm]

2006-02-22T01:41:23.102136Z Ralph Giles

Remove the redundant Fixed type from the internal freetype code and 
replace uses of it with the TT_Fixed type. The un-namespaced version
conflicts with system headers on MacOS.

[src/ttfsfnt.h src/tttypes.h src/ttfmain.c]

2006-02-22T01:38:35.156952Z Ralph Giles

Use the uint32_t stdint type for the compiled initialization data 
representation. The previous code used 'unsigned long' but assumed
this type was 32 bits, which isn't true on all platforms.

[src/mkromfs.c src/gsiorom.c src/gsiorom.h]

2006-02-21T22:24:25.799346Z Ray Johnston

Fix missing declaration on Windows platforms.

[src/mkromfs.c]

2006-02-21T22:01:15.379976Z Ray Johnston

Add a missing file from the commits for rev 6600. This was a new file
that was not 'added' before that commit.

[src/gsiorom.h]

2006-02-21T21:29:07.026481Z Ray Johnston

Implement %rom% IODevice and use it for the COMPILE_INITS=1 builds. Data
is compressed and can include fonts as well as lib init files, Resource
directories and other. The (%rom%) path is inserted as the first path on
the LIBPATH list when COMPILE_INITS=1. The default GenricResourceDir is
set to %rom%Resource/ unless the command line sets -sGenericReourceDir.
Bug 687485.

DETAILS:

See gsiorom.* and mkromfs.c for details of the %rom% structure. The inital
implementation creates a string buffer for the entire file (block by block)
decompression is not yet implemented (a new stream type).

The %rom% IODevice is not PostScript specific so it could be used by non
PS interpreters (GhostPCL) but the creation of gsromfs.c by mkromfs needs
to be performed elsewhere (hint in src/lib.mak).

NOTES:
Tested on unix and Windows. Mac, OS/2 and VMS will need attention as will
non-MSVC tool chains. Since this replaces the old COMPILE_INIT method
don't use COMPILE_INTIS=1 on those platforms unless you are working on
fixing problems or just feel lucky.

The insertion of the %rom% device as the first path in the LIBPATH list
will make changing initfiles during debug more cumbersome, but using 
COMPILE_INITS=1 is really not intended for debugging or development anyway.

EXPECTED DIFFERENCES:

None. (we don't build with COMPILE_INITS).

[src/openvms.mak src/mkromfs.c src/gsiorom.c src/macosx.mak src/int.mak src/watcw32.mak src/dvx-gcc.mak src/unixansi.mak src/msvclib.mak src/os2.mak src/lib.mak src/bcwin32.mak lib/winmaps.ps src/ugcclib.mak src/gs.mak src/Makefile.in src/iccinit1.c src/msvc32.mak src/unix-gcc.mak src/unix-aux.mak src/macos-mcp.mak src/unixinst.mak src/msvctail.mak src/watclib.mak lib/gs_init.ps]

2006-02-21T13:43:42.400991Z leonardo

Fix : A slow rendering of a colored halftone.

DETAILS :

Bug 688537 "A very slow rendering to spotcmyk".

This patch creates a special branch for filling a path with
a colored halftone. It installs a clipper device and then renders 
a rectangle through it, using the halftone color painting method immediately.

We're not sure, which color types should go through this branch.
Passing it to our color specialist for review.
Also we're not sure how to get test cases for this branch.

EXPECTED DIFFERENCES :

None.

[src/gxfill.c]

2006-02-21T13:31:27.980844Z leonardo

Fix (shadings) : Save C stack space with removing rudimentary data.

DETAILS :

As a rudiment of the old shading algorithm,
mesh_fill_state_common defined a big data field,
which was placed on C stack and vever accessed.

EXPECTED DIFFERENCES :

None.

[src/gxshade4.h]

2006-02-21T12:54:34.181498Z Alex Cherepanov

Repair incorrect ToUnicode CMap streams that have no CMapName key.
Bug 688517

DETAILS:
Ghostscript has been writing incorrect ToUnicode CMap without CMapName into
the PDF since version 8.10 (rev. 3611) . This bug is fixed in version 8.54
(rev. 6201).

DIFFERENCES:
None

[lib/pdf_font.ps doc/Ps2pdf.htm]

2006-02-21T12:42:26.666806Z leonardo

Type 1 hinter : More improvements (continued).

DETAILS :

1. Adjusts t1_hint_range::end_pole if it refers an offcurve pole.
2. Regularizes the hint range adjustment logics (an algorithmically equivalent change).
3. The new function t1_hinter_fix_missed_flex works when a glyph doesn't define flex hints.
   Particularly it works for True Type fonts. 
   It recognizes low curvity boundaries of a flex-like shape and size, 
   and replaces them with a straight segment.
   See comments in code.
   Bug 688552 "A poor grid fitting when a flex hint is missing.".
4. When t1_hinter_fix_missed_flex works, we adjust those stem hint coordinates,
   which point to poles of a flex being unbended.
   For more information see comment in t1_hinter__adjust_stem_hints_by_missed_flex.
4. Improves the logic for obtaining a vdtrace device context in gzspotan.c .
5. t1_hinter__align_stem_poles summarizes alignment from all hint ranges.
   The old code does not do by a mistake.
6. t1_hinter__align_stem_poles now prefers hints, which have both sides applied.
7. The alignment at the stem middle is now applied only to stems,
   which are strongly vertical or horizontal in the design space.
   See comment in t1_hinter__find_stem_middle.

EXPECTED DIFFERENCES :

Massive : 97 of 484 comparefiles.

[src/gxhintn.c src/gxhintn.h src/gzspotan.c]

2006-02-20T07:30:32.227346Z Dan Coby

Addition to the fix for 688177 Eliminate the 64 bit pixel size limit.

DETAILS:

A one line change was missed in the previous commit for this fix.
Without this change, the maximum numbers of is 16.

[src/gxcindex.h]

2006-02-18T18:37:24.764551Z Ray Johnston

Implement yet another hack for an invalid PDF file that Adobe handles. If
a parameter is missing from the Page tree, check the Root Catalog. This case
had MediaBox in the Root dict, but not anywhere in the Pages tree. Bug 688562
for customer 670.

DETAILS:

MicroPatent probably misinterprets the spec where it mentions "For example,
a document might specify the same media box for all of its pages by including
a MediaBox entry in the root node of the page tree." thinking that the Root
Catalog is the Root of the Page tree, rather than the /Pages object from the
Root.

As is usual, I issue a pdfformaterror Warning when this is detected.

EXPECTED DIFFERENCES:

None.

[lib/pdf_main.ps]

2006-02-17T20:23:52.826051Z Ralph Giles

Update the eventone screening url. artofcode.com has been taking by 
spammners.

[src/rinkj/evenbetter-rll.c]

2006-02-17T07:12:46.743338Z Dan Coby

Fix for 688560 DeviceN with InDesign gradient causes segmentation fault.

DETAILS:

I am unable to reproduce the reported seg fault.  This patch fixes the
/rangecheck in --.sethalftone5--

The file was specifying a Gray halftone and also specifying the
SeparationORder parameter to select only a Cyan colorant.  This
was creating confusion in the halftone install logic.  The rangecheck
was being generated when the Gray halftone was being confused as a
second Default halftone.

The fix consists of adding a check for the situation in which the
device indicates that a color is supported by the device but not
being used because of the SeparationOrder parameter.  Note:  There
was already one check in the procedure for this situation but a
second check is needed to handle the 'treat gray like black' etc.
cases.

[src/gsht.c]

2006-02-17T04:10:07.505527Z Alex Cherepanov

Fix recognition of executable names "if" and "ifelse" as valid operations in
the calculator function. Bug 688547.

DIFFERENCED:
None

[src/zfunc4.c]

2006-02-16T19:53:28.400151Z leonardo

Fix (pdfwrite) : Propagate error code from s_DCTE_put_params (continued).

DETAILS :

Remove an obsolete comment.

EXPECTED DIFFERENCES :

None.

[src/gdevpsdu.c]

2006-02-15T07:33:41.943841Z Ralph Giles

Enable $Id keyword substitution on the new luratech integration source 
files.

[src/sjbig2_luratech.h src/sjpx_luratech.h src/sjbig2_luratech.c src/ldf_jb2.mak src/lwf_jp2.mak src/sjpx_luratech.c]

2006-02-15T07:30:40.721233Z Ralph Giles

Update the "RCS" keyword check script to recognize SVN style as well as 
CVS style Id keyword lines. Bug 688554.

[toolbin/tests/check_source.py]

2006-02-15T07:26:26.954211Z Ralph Giles

Turn on keyword substitution. This is confusing, since the script also 
outputs a $Id: $ line for the makefile it generates, but doesn't cause
problems in practice.

[toolbin/gen_ldf_jb2.py]

2006-02-13T20:28:55.328420Z leonardo

Type 1 hinter : Remove dead development branches.

DETAILS :

This change is syntactically equivalent.

EXPECTED DIFFERENCES :

None.

[src/gxhintn.c src/gxhintn.h]

2006-02-13T00:05:28.577164Z leonardo

Type 1 hinter : More improvements.

DETAILS :

1. Account StemShapH, StemShapW according to Adobe Technical Note #5049.
   The new array stem_snap_vote works for that.
2. Pixel size was wrongly computed with anisitropic CTM.
3. pixel_ox, pixel_oy were mixed with a transposed glyph.
   Fully reconsider OPPOSITE_STEM_COORD_BUG_FIX and remove it.
4. t1_hinter__align_stem_commands sometimes started pole enumeration
   with an off-curve pole.
5. Hint range was wrongly computed for some glyphs.
6. Dotsection didn't work at all.
7. Implements an opposite stem boundary length calculation,
   and accounts it for resolving alignment conflicts.
   new fields boundary_length* work for that.
8. Removed t1_hint_range::contour_index because it worked wrongly.
   Use t1_pole::contour_index instead.
9. A bug in the initialization of max_stem_snap_count :
   the initial value was too small, causing an extra memory allocated.

Bug 687654 "t1_hinter__find_best_standard_width() always returns 0".
Bug 688553 "A poor grid fitting when stems conflict".

EXPECTED DIFFERENCES :

Massive : 343 of 484 comparefiles.

[src/gxhintn.c src/gxhintn.h]

2006-02-12T17:08:11.734787Z Ralph Giles

Correct the accidentally changed hardwired install prefix.

[toolbin/tests/run_nightly]

2006-02-11T23:45:18.286490Z Ralph Giles

Have the update_ghostscript function return the new SVN revision number 
and include it at the head of the report for clarity. Also, when the
complete report is trimmed from length, indicate so. Bug 688541.

[toolbin/tests/run_nightly]

2006-02-11T23:42:25.162459Z Ralph Giles

Also add the regression log file required by run_nightly to the example 
config file.

[toolbin/tests/testing.cfg.example]

2006-02-11T23:15:56.623144Z Ralph Giles

Correct a cut-and-paste error. The get_baselines script was listed under 
the diff_script key in the example config file.

[toolbin/tests/testing.cfg.example]

2006-02-10T14:46:51.888781Z leonardo

Fix (pdfwrite) : Updating the list of standard CMap names.

EXPECTED DIFFERENCES :

None.

[src/gdevpdtc.c]

2006-02-09T23:00:19.858380Z leonardo

Fix (PDF interpreter) : When emulating the text rendering mode 3, don't render the text to the target device.

DETAILS :

Bug 688534 "Text doubled in produced PDF".

The old code executed 'charpath' with the target device just to move current point.
It caused too heavy effect to the target device.
Replacing with a lighter implementation.

Strongly speaking, this patch is not necessary for the bug 688534,
because the last patch fixed the undesirable effect for pdfwrite.
But we prefer to fix the PDF interpreter to exclude 
the unpleasant effect for other high level devices in general.

EXPECTED DIFFERENCES :

None.

[lib/pdf_ops.ps]

2006-02-09T23:00:06.441182Z leonardo

Fix (pdfwrite) : Handle charpath with default implementation.

DETAILS :

Bug 688534 "Text doubled in produced PDF".

The old code handled 'charpath' as a high level operation,
so that the effect to Postscript interpretation erroneusely appears empty,
and the text was erroneusely written to the PDF output.

EXPECTED DIFFERENCES :

None.

[src/gdevpdtt.c]

2006-02-09T18:03:38.118376Z leonardo

Fix (pdfwrite) : Propagate error code from s_DCTE_put_params.

DETAILS :

Bug 688544 "Error: /ioerror in --image--".

The old code erroneusely applied DCT compression to DeviceN colors,
causing an ioerror when the number of colorants is greater than 4.

EXPECTED DIFFERENCES :

None.

[src/gdevpsdu.c]

2006-02-09T16:28:53.914553Z leonardo

Fix : Unwinding the change from rev 6573 to 6574 due to a pdfwrite problem.

DETAILS :

That change caused glyphs to dissapper when rendering a file conferted with pdfwrite.
The effect may be indeterministc.
As we could figure out, the change causes a wrong length of OS/2 table
to be written into embedded True Type fonts.
The problem happens when re-distilling 01_001.pdf, 159.pdf.
We didn't test all files.
Will reopen the bug 688536.

EXPECTED DIFFERENCE :

If a regression appeares with pdfwrite, it should recover.

[src/gxttf.h src/gdevpsft.c]

2006-02-09T15:18:52.242524Z leonardo

pdfwrite : A simplified implementation for ColorConversionStrategy, continued.

DETAILS :

Bug 687628 "ProcessColorModel /DeviceCMYK does not work".

This is a preliminary implementation of ColorConversionStrategy, 
the values UseDeviceIndependentColor and UseDeviceIndependentColorForImages. 
It also defines a new Ghostscript-specific value Gray.
We don't care about performance due to low demand to this feature.
Due to same reason a systematical testing was not done
except regression testing with the default value LeaveColorUnchanged.
We would appreciate users' help in testing new features.

The value UseDeviceIndependentColorForImages actually works as UseDeviceIndependentColor.

The old Ghostscript-specific value UseDeviceDependentColor
is now depricated. It causes a warning is printed to stderr,
and the valuse automaticly substitutes with sRGB, CMYK or Gray
depending on ProcessColorModel.

See also the documentation change included in the patch.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfp.c doc/Ps2pdf.htm src/gdevpdfc.c src/gdevpdfg.c src/gdevpsdf.h]

2006-02-09T13:16:28.615804Z Alex Cherepanov

Upgrade ttf_OS_2_t structure to support v.2 (96-byte) OS/2 table.
Bug 688536.

DETAILS:
We don't use new fields in the 96-byte structure and continue to
create 86-byte structures. The extra space is used as a buffer when
we copy the structure intact.

DIFFERENCES:
None

[src/gxttf.h src/gdevpsft.c]

2006-02-09T06:03:12.845053Z Ray Johnston

Clamp bbox rectangle to avoid q<p case that the rect_intersect macro allows
to avoid allocating transparency buffer that has an incorrect (way too large)
size. Bug 688546.

DETAILS:

WHile it might be more elegant to skip a lot of the transparency logic, it
works to simply end up with a zero width or height of the rectangle. Since
this is an anomalous case, optimization is not that important.

EXPECTED DIFFERENCES:

None. This case did not exist previously in the regression suite.

[src/gdevp14.c]

2006-02-08T22:41:30.031403Z Ralph Giles

Remove two source files which in the normal build preprocess to nothing 
from our makefile. This means we can't buid with JB2_TEST, but the empty
modules cause an error on the MSVC build.

[src/ldf_jb2.mak]

2006-02-08T22:24:31.339253Z Ralph Giles

Add conditionals to the MSVC makefile to simplify switching between the 
Luratech and normal builds. With this patch it is sufficient to specify 
JPX_LIB=luratech and JBIG2_LIB=luratech on the nmake command line.

[src/msvc32.mak]

2006-02-08T20:30:10.070290Z Alex Cherepanov

Calculate the last byte of the character code modulo 256 to prevent the final
value exceed 256 and cause an rangecheck error.
Bug 688535.

DETAILS:
The overflow and the proposed adjustment can happen only when the
last element is 0xFF. 

The last value of the string is not used but discarded at the end of the loop.
So the adjustment has no effect other than suppressing the error with
the minimal changes in the existing code.

EXPECTED DIFFERENCES:
None

[lib/pdf_font.ps]

2006-02-08T19:57:10.364799Z leonardo

pdfwrite : A simplified implementation for ColorConversionStrategy values CMYK and sRGB .

DETAILS :

Bug 687628 "ProcessColorModel /DeviceCMYK does not work".


This is a preliminary implementation of ColorConversionStrategy, the values CMYK and sRGB . 
We don't care about performance due to low demand to this feature.
Therefore some objects, which use an incompatible color space, 
are converted to low level objects.

The new parameter values were not systematically tested due to low demand.
We would appreciate users' help in testing them.

For now the parameter values UseDeviceIndependentColor and UseDeviceIndependentColorForImages 
work as LeaveColorUnchanged, but the effect of UseDeviceIndependentColor
may be obtained with specifying -dUseCIEColor .

When specifying CMYK or sRGB, the value of ProcessColorModel must be 
DeviceCMYK or DeviceRGB cvorrespondingly.

The color conversion to sRGB is performed with the default color conversion,
which Ghostscript uses to convert to DeviceRGB color model.
Therefore color transfer may be imperfect.
Conversion to CMYK uses the default conversion also.

EXPECTED DIFFERENCES :

None.

[src/gsptype2.c src/gdevpdfp.c src/gdevpdfc.c src/gsptype2.h src/gdevpdfg.c src/gdevpsdf.h src/gdevpdfg.h]

2006-02-08T16:17:13.078988Z Alex Cherepanov

Removes hexadecimal conversion from the code and pass the encrypted
part of the type 1 font to eexec operator intact in all cases.
Bug 688385 from customer 1110.

DETAILS :
The PDF specification states that Type 1 fonts always use binary form of
the encrypted part, but some PDF producers embed fonts with hexadecimal
encoding unchanged. The standard eexec operator recognizes and decodes
them transparently.

The only case that is not handled is a binary-encoded file that looks like a
hexadecimal encoding to eexec. This case has not been observed in the wild. 

EXPECTED DIFFERENCES :
None

[lib/pdf_font.ps]

2006-02-08T13:52:40.832268Z Alex Cherepanov

Consume EOD character in the Hex stream when the stream length is > 0.
Bug 688512 from customer 232.

DETAILS :
This makes our StartData procedure to be compatible with Distiller and CPSI.
It is not clear from the TN #5014 whether an empty Hex stream should have an
EOD character but Adobe doesn't accept it. For non-empty streams they
appear to use an /ASCIIHexDecide filter. Our previous implementation used
readhexstring operator, which didn't consume the trailing EOD characters by
itself and required special code to move the current file past the EOD.

EXPECTED DIFFERENCES :
None

[lib/gs_cidfn.ps]

2006-02-08T06:26:06.073966Z Ralph Giles

Copy the jasper-1.701.0-gs5 release tag into the Ghostscript trunk.

[jasper]

2006-02-08T06:25:15.908588Z Ralph Giles

Remove the current jasper code to make way for the 1.701.0-gs5 release.

[jasper]

2006-02-07T12:19:02.250776Z leonardo

Fix (pdfwrite) : 'shfill' doesn't write a shading's Background.

DETAILS :

Bug 687676 "pdfwrite : shading background can erroneusly appear".

1. pdf_put_shading_common now depends on gs_pattern2_instance_t::shfill.
2. gx_dc_pattern2_save_dc now stores gs_pattern2_instance_t::shfill
   to allow pdf_reset_color to account it with gx_hld_saved_color_equal.

EXPECTED DIFFERENCES :

A progression in pdfwrite with hsadings :

464-01-fixed.ps 
483-01.ps
483-05-fixed.ps

[src/gsptype2.c src/gsdcolor.h src/gdevpdfv.c]

2006-02-06T11:04:12.919537Z leonardo

Fix (pdfwrite) : Allow instandard glyph names when synthesising an Encoding for 'glyphshow'.

DETAILS :

Bug 688017 "ps2pdf problem with CFF fontset resources".

The old code emited 'rangecheck' when glyphshow uses a glyph name,
which doesn't appear in Postscript font Encoding.
It hapens so due to the old code forces standard glyph names,
because other old procedures were restricted with them.
As result, such glyphs converted to rasters.

The modern code is not restricted with standard glyph names,
so we simply pass instandard ones when can't find a standard one.

EXPECTED DIFFERENCES :

Bug688154.ps

[src/gdevpdtt.c]

2006-02-05T14:25:24.143977Z leonardo

Fix  : Removing 'assert' from gxccman.c (continued).

DETAILS :

Add missing braces in the error code propagation introduced in rev. 6555.

EXPECTED DIFFERENCES :

None.

[src/zfont.c]

2006-02-04T03:56:37.709032Z Alex Cherepanov

Following FreeType 2 implementation, ignore incorrect SHC command.
Bug 688501

EXPECTED DIFFERENCES :
None

[src/ttinterp.c]

2006-02-04T00:23:59.520737Z Dan Coby

Fix for 688177 Eliminate the 64 bit pixel size limit.

DETAILS:

This change implements a scheme for compressing colorant values into
a gx_color_index.  For details of the compression scheme, see comments
before the devn_encode_compressed_color in src/gdevdevn.c.  With this
change, a maximum of 64 colorants are supported.

[src/gdevpsd.c src/gdevdflt.c src/gsccolor.h src/gdevtsep.c src/gdevdevn.c src/gsovrc.c doc/Devices.htm src/devs.mak src/gdevdevn.h]

2006-02-03T23:42:57.853736Z Ralph Giles

Correct a typo in the previous commit. jas_dump_image must be protected 
by #ifdef DEBUG to prevent unused variable warnings.

[src/sjpx.c]

2006-02-03T23:30:24.204851Z Ralph Giles

Code cleanup. Remove unused headers and report decoded image parameters 
through -Zw instead of with general or -Zs debug prints.

[src/sjpx.c src/sjbig2_luratech.c src/sjpx_luratech.c]

2006-02-03T15:45:13.779132Z leonardo

Fix  : Removing 'assert' from gxccman.c .

DETAILS :

Doing so by Stefan's and Raph's requests.
Changes to other modules propagate error codes.

EXPECTED DIFFERENCES :

None.

[src/isave.h src/gxfcache.h src/imain.c src/zvmem.c src/gsfont.c src/gxccman.c src/zfont.c src/gsfont.h src/gxccache.c src/isave.c]

2006-02-03T15:40:42.652558Z leonardo

Fix  : Removing 'assert' from gzspotan.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gzspotan.c]

2006-02-03T15:39:14.475213Z leonardo

Fix  : Removing 'assert' from siscale.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/siscale.c]

2006-02-03T15:37:47.547536Z leonardo

Fix  : Removing 'assert' from gxcht.c, gxdhtserial.c

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gxcht.c src/siinterp.c src/zcfont.c]

2006-02-03T15:35:25.138745Z leonardo

Fix  : Removing 'assert' from gxdhtserial.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gxdhtserial.c]

2006-02-03T15:34:27.957959Z leonardo

Fix  : Removing 'assert' from gsfunc0.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gsfunc0.c]

2006-02-03T15:33:21.731016Z leonardo

Fix  : Removing 'assert' from gsfcmap.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gsfcmap.c]

2006-02-03T15:32:12.047666Z leonardo

Fix  : Removing 'assert' from gdevpsft.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gdevpsft.c src/gdevpxut.c]

2006-02-03T13:13:55.222042Z leonardo

Fix  : Removing 'assert' from the FreeType FAPI bridge.

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/write_t1.c src/write_t2.c src/fapi_ft.c]

2006-02-03T12:52:24.873880Z leonardo

Fix  : Removing 'assert' from gdevpsf1.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gdevpsf1.c src/gdevpdfc.c src/gdevddrw.c]

2006-02-03T12:40:42.456435Z leonardo

Fix  : Removing 'assert' from gxpflat.c .

DETAILS :

Doing so by Stefan's and Raph's requests.
Changes to other modules propagate errors form gxpflat.c .

EXPECTED DIFFERENCES :

None.

[src/lib.mak src/gxfilltr.h src/gzpath.h src/gxfill.c src/gxpflat.c src/gxfillsl.h]

2006-02-03T12:39:01.222510Z leonardo

Fix  : Removing 'assert' from gdewddrw.c, gxdtfill.h .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gxdtfill.h src/gdevddrw.c]

2006-02-03T12:35:10.242248Z leonardo

Fix  : Removing 'assert' from gxshade1.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gxfdrop.c]

2006-02-03T12:34:09.374887Z leonardo

Fix  : Removing 'assert' from gxshade1.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gxshade1.c]

2006-02-03T09:55:00.285432Z leonardo

Fix (font machinery) : Remove the dependency of the graphics library code on the PS interpreter code.

DETAILS :

This change is algorithmically equivalent.

EXPECTED DIFFERENCES :

None.

[src/gxfcopy.c src/gxfont42.h src/gstype42.c src/zfont42.c]

2006-02-02T22:22:38.927751Z leonardo

Fix (pdfwrite) : Devcice parameters placed in a wrong memory space.

DETAILS :

Bug 688531 "Segmentation fault running pdfwrite from 219-01.ps".

1. See comment in code.
2. Inserted gs_device_pdf::pdf_memory initialization into gdev_pdf_put_params,
The old code initializad in pdf_open, which is called after gdev_pdf_put_params.
We keep the old initialization because the PCL intrepreter may use it.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfp.c]

2006-02-02T22:21:42.095676Z leonardo

Unwinding the last patch due to wrong log message.

[src/gdevpdfp.c]

2006-02-02T22:12:18.484170Z leonardo

Fix  : Removing 'assert' from gxshade6.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfp.c]

2006-02-02T20:00:35.433481Z Ray Johnston

Use the TT font 'Full Name' (name id #4) if the PS name (id #6) is not present.
Related to Bug 688523 for customer 580.

[lib/gs_ttf.ps]

2006-02-02T12:14:33.590232Z leonardo

Fix : A wrong CTM in clist after a create compositor command.

DETAILS :

When a create compositor command is written to clist,
the imager state copy was not updated in the clist writer device,
causing a further CTM desyncronization.
It caused a wrong clist playback for the bands affected by the compositor.

Debugged with GS_Stroke_error.pdf, bugsample.pdf, Bug687724.pdf 
with the patch for 688518 applied.
Have no tests for observibg this bug without the patch for 688518.

EXPECTED DIFFERENCES :

None,

[src/gxclimag.c]

2006-02-02T00:46:28.135273Z Ralph Giles

Update the makefiles for the lwf_jp2 source v1.03 and ldf_jb2 source v2.04.

[src/ldf_jb2.mak src/lwf_jp2.mak]

2006-02-01T22:27:32.766702Z Ralph Giles

Include for reference a script to generate ldf_jb2.mak from the source 
directories, since the file list fluctuates somewhat from version to 
version.

[toolbin/gen_ldf_jb2.py]

2006-02-01T21:13:48.761011Z leonardo

Fix  : Removing 'assert' from gxshade6.c .

DETAILS :

Doing so by Stefan's and Raph's requests.

EXPECTED DIFFERENCES :

None.

[src/gxshade6.c]

2006-02-01T20:56:40.633246Z Ray Johnston

Make the initial summary line say "ERROR" instead of "DIFFER" if
we get a non-zero exit code during pdfwrite checking.

[toolbin/tests/gstestutils.py]

2006-02-01T18:47:36.861536Z Ralph Giles

Raise the limit of the size of the complete regression beyond which it is not included to 300 KB.

[toolbin/tests/run_nightly]

2006-02-01T18:19:21.935317Z Ralph Giles

Remove an unnecessary terminal '\' in the definition of JAS_EXCF_ which causes problems with make 
in SGI Irix. Closes bug 688529.

[src/jasper.mak]

2006-02-01T10:09:25.288062Z leonardo

Fix (font machinery) : Dereferenced NULL in gx_add_char_bits.

DETAILS :

Bug 688527 "A crash (a null pointer deref) in gx_add_char_bits".

Type 3 fonts are not included into the dir->orig_fonts list.
So the list may be empty.

EXPECTED DIFFERENCES :

None.

[src/gxccman.c]

2006-01-30T21:41:02.804104Z Ralph Giles

Rename HAVE_LDF_JB2 and friend to USE_LDF_JB2 since this is a directive
more than just an availability test.

[src/zfjbig2.c src/zfjpx.c]

2006-01-30T10:49:52.354325Z Ralph Giles

Move the definition of the 3rd party library include paths for the jbig2 
and jpeg2k implementations back into gs.mak.

DETAILS:

Although it makes more sense to define these in the makefile for each 
library, they are also needed for building the calling code in the 
graphics library and interpreter. This causes a circular dependency
with tools such as nmake which perform variable resolution in a 
single-pass.

[src/gs.mak src/jbig2.mak src/ldf_jb2.mak src/lwf_jp2.mak src/jasper.mak]

2006-01-30T10:30:53.447513Z Ralph Giles

Split the JPXDecode filter build at the interpreter level so the correct 
include path is used.

[src/int.mak]

2006-01-30T09:20:34.569051Z Ralph Giles

Correct build path errors in the Luratech makefiles.

[src/ldf_jb2.mak src/lwf_jp2.mak]

2006-01-30T08:51:04.157759Z Ralph Giles

Add the new Luratech makefiles to the MSVC and MacOS CodeWarrior builds.

[src/macos-mcp.mak src/winlib.mak]

2006-01-30T08:47:30.163980Z Ralph Giles

Rename jbig2_luratech.mak to ldf_jb2.mak to make upstream conventions.

[src/Makefile.in src/ldf_jb2.mak src/jbig2_luratech.mak]

2006-01-30T07:55:21.176824Z Ralph Giles

Initial check in of a makefile for building the Luratech LWF JPEG 2000 
CSDK source as part of Ghostscript, and add it to the autoconf build. 
Also associated cleanup.

[src/lib.mak src/Makefile.in src/lwf_jp2.mak src/jbig2_luratech.mak]

2006-01-30T06:41:14.593860Z Ralph Giles

Add hooks for passing license keys to the Luratech jpeg2k and jbig2 
implementations, for those linking against CSDK builds that require
this.

[src/sjbig2_luratech.c src/sjpx_luratech.c]

2006-01-30T06:39:50.565912Z Ralph Giles

Include jbig2_luratech.mak in the autoconf build.

[src/Makefile.in]

2006-01-30T06:39:02.652740Z Ralph Giles

Switch the choice of JBIG2Decode and JPXDecode stream implementations
based on a preprocessor define.

[src/zfjbig2.c src/zfjpx.c]

2006-01-30T06:37:31.179455Z Ralph Giles

Minor build variable rearrangement and clean up related to the Luratech 
JBIG2 decoder integration.

[src/lib.mak src/gs.mak src/int.mak src/jbig2.mak src/jasper.mak]

2006-01-30T05:34:32.468930Z Ralph Giles

Initial check in of a makefile for building the Luratech LDF JBIG2 CSDK
source as part of Ghostscript.

[src/jbig2_luratech.mak]

2006-01-29T23:54:46.647329Z Ralph Giles

Fix a missing dependency in the new sjbig2 build rules.

[src/lib.mak]

2006-01-29T23:36:18.372226Z Ralph Giles

Update the autotools makefile for the jbig2/jpeg2k indirection changes.

[src/Makefile.in]

2006-01-29T23:31:07.833789Z Ralph Giles

Introduce a level of indirection so the builds for the two different 
jbig2 and jpeg2k implementations can coexist. Also, add jasper to the 
OS/2 and OpenVMS builds, and update the OpenVMS makefiles now that the 
third-party libraries are included with the source release.

[src/openvms.mak src/watcw32.mak src/macosx.mak src/dvx-gcc.mak src/jbig2.mak src/unixansi.mak src/msvclib.mak src/os2.mak src/openvms.mmk src/lib.mak src/ugcclib.mak src/gs.mak src/unix-gcc.mak src/msvc32.mak src/macos-mcp.mak src/wccommon.mak src/watclib.mak]

2006-01-29T21:58:57.475609Z Ralph Giles

Rename the jasper-oriented top-level makefile elements to the more
generic JPX.

[src/lib.mak src/gs.mak src/int.mak src/Makefile.in src/msvc32.mak src/macos-mcp.mak src/jasper.mak src/winlib.mak]

2006-01-29T21:04:26.485513Z leonardo

Fix (pdfwrite) : Avoid the dependency of a charproc on char code, step 6.

DETAILS :

This finally completes the fix for the bug 688513 "pdfwrite: redundant CharProcs elements.".
It repairs minor defects of last patches.

EXPECTED DIFFERENCES :

None.

[src/gdevpdtt.c src/gdevpdtf.c src/gdevpdti.c src/devs.mak src/gdevpdti.h]

2006-01-29T19:35:26.757129Z Ralph Giles

Improve the documentation for the CAPOPT unix makefile variable.

[src/macosx.mak src/Makefile.in src/unix-gcc.mak]

2006-01-29T18:06:11.349450Z leonardo

Fix (pdfwrite) : Avoid the dependency of a charproc on char code, step 5.

DETAILS :

This completes the fix for the bug 688513 "pdfwrite: redundant CharProcs elements.".

1. Moving char_name from the charproc structure to pdf_char_proc_ownership_t,
because charprocs with different glyph names may have same command stream.

2. pdf_is_charproc_compatible is changed to a weaker condition
to allow to merge char procs with different names.
However we prefer fonts with a compatible encoding, which are attached to same PS font, 
in order to prevent mixing glyphs from various fonts.

3. charproc_compatibility_data_t is defined to reduce the gx_device_pdf::find_resource_param bogus.

4. pdf_char_widths_from_charprocs is a new function for reconstructing
real_width when a PDF Type 3 font is attached to another PS font.
Due to historical reason, real_width is a property of the attachment,
rather in novadays it should be a property of PDF font.
It happens because a PDF font may migrate to another PS font due to charproc merging,
especially in case of glyph variations.

5. The condition for involving pdf_find_same_charproc has been changed 
in pdf_end_charproc_accum to a weaker one, to allow to merge with charprocs from other fonts.
With the old condition a charproc didn't merge when appears in a font at the first time,
so it never merged with ones from other fonts.

6. Added a marking of glyph names in pdf_char_proc_ownership_t for the garbager.

7. Now we mark glyph names for garbager for all simple fonts,
except synthesised bitmap fonts (which use char codes instead glyph names).
The old code did for non-bitmap Type 3 only, and theretore it can have an indeterminizm
with other simple font types.

8. Minor change to gsstruct.c :
Added gs_*_st_strings1_ptrs4 and moved gs_*_st_strings1_ptrs1 
for a better code grouping.

This change causes a minor dirrefernce in raster with Bug687660a.ps with pdfwrite at 72 dpi.
It happens because the space glyph appears same for two fonts, which form a single text,
so that the font change appears some earier. However it causes the representation
of a glyph position to change from an absolute coordinate (in user points) 
to the Tj offset operand (in the 1000-unit scale). 
It causes a 1 pixel noize (the glyph shift) due to a different rounding.

EXPECTED DIFFERENCES :

pdfwrite at 72 dpi :
Bug687660a.ps

[src/gdevpdfx.h src/gdevpdtt.c src/gdevpdtf.c src/gsstruct.h src/gdevpdtw.c src/gdevpdti.c src/gdevpdtt.h src/devs.mak src/gdevpdti.h]

2006-01-29T17:48:58.910034Z leonardo

Fix (font machinery) : Inaccurate condition in zfont_mark_glyph_name.

DETAILS :

The old condition passes standard encoding indices as Postscript name indices.
It could cause a crash in the garbager.

EXPECTED DIFFERENCES :

None.

[src/int.mak src/zfont.c]

2006-01-29T08:08:11.685892Z Ralph Giles

Initial checkin of /JBIG2Decode filter support based on the
proprietary Luratech implementation.

[src/sjbig2_luratech.h src/lib.mak src/sjbig2_luratech.c]

2006-01-29T01:12:20.057028Z Ralph Giles

Initial checkin of /JPXDecode filter support based on the 
proprietary Luratech implementation.

This version uses the system malloc and only handles 8-bit-
per-component images without channel subsampling.

[src/lib.mak src/sjpx_luratech.h src/sjpx_luratech.c]

2006-01-29T01:04:43.551064Z Ralph Giles

Rearrange code for clarity.

[src/sjbig2.h]

2006-01-27T21:58:27.997608Z Ralph Giles

Make ps2epsi create a temporary file more securely in an owner-locked 
directory. Closes bug #687243.

[lib/ps2epsi]

2006-01-27T19:52:13.853680Z leonardo

Fix (pdfwrite) : Avoid the dependency of a charproc on char code, step 4.

DETAILS :

This is a preparation for the bug 688513 "pdfwrite: redundant CharProcs elements.".

This change moves char_code and the font reference from the charproc structure 
to pdf_char_proc_ownership_t.

The function pdf_is_same_charproc has been reorganized due to the data structure change,
and the condition become weaker - not accoutning character codes
and Postscript glyph id.

With this change pdf_end_charproc_accum performs an untrivial charproc substitution
with 238-01.ps due to a weaker condition for charproc equality
But we still have an example (t1.ps from the bug 238-01.ps),
which needs a further improvement.

Adding gx_dfevice_pdf::find_resource_param is bogus.
Would like to do without it, but don't want to enlarge the patch.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfx.h src/gdevpdtt.c src/gsstruct.h src/gdevpdfb.h src/gdevpdti.c]

2006-01-27T17:55:49.774445Z Ray Johnston

Handle indirect object reference for CIDSystemInfo element. Bug 688515
for customer 870.

[lib/pdf_font.ps]

2006-01-27T09:45:38.491381Z leonardo

Fix (pdfwrite) : Avoid the dependency of a charproc on char code, step 3.

DETAILS :

This is a preparation for the bug 688513 "pdfwrite: redundant CharProcs elements.".

This change is algorithmically equivalent.
It defines a new type pdf_char_proc_ownership_t for
representing a many-to-many correspondence
of charprocs to fonts. But this patch still keeps
the old many-to-one constraint to simplify the testing.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfx.h src/gdevpdti.c src/gdevpdtf.h]

2006-01-27T08:12:27.899649Z leonardo

Fix (pdfwrite) : Remove pdf_begin_char_proc_generic.

DETAILS :

This is a preparation for the bug 688513 "pdfwrite: redundant CharProcs elements.".

This change is algorithmically equivalent.
It inlines pdf_begin_char_proc_generic.
pdf_begin_char_proc_generic is an old attempt to factor out
a common portion of code for bitmap (synthesised) and non-bitmap fonts,
but that attempt appeared unuseful.

EXPECTED DIFFERENCES :

None.

[src/gdevpdti.c]

2006-01-26T13:18:07.717021Z leonardo

Fix (pdfwrite) : Avoid the dependency of a charproc on char code, step 2.

DETAILS :

This is a preparation for the bug 688513 "pdfwrite: redundant CharProcs elements.".

This change is algorithmically equivalent.
It drops last asserts and simplifies the code with them.

EXPECTED DIFFERENCES :

None.

[src/gdevpdtt.c]

2006-01-26T13:07:55.087988Z leonardo

Fix (pdfwrite) : Avoid the dependency of a charproc on char code, step 1.

DETAILS :

This is a preparation for the bug 688513 "pdfwrite: redundant CharProcs elements.".

This change is algorithmically equivalent.
It moves the Type 3 character code computation from pdf_text_set_cache
to a portion, which works before performing the interpreter callout
for executing a Postscript charproc. Doing so to exclude the necessity 
of storing the character code in pdf_char_proc_t.

We inserted additional asserts to define invariants explicitely.
We'll remove them after regression testing.

EXPECTED DIFFERENCES :

None.

[src/gdevpdtt.c src/gdevpdtt.h]

2006-01-26T10:29:36.328224Z leonardo

Fix (pdfwrite) : Prevent extra encoding elements (continued).

DETAILS :

Bug 687669 "pdfwrite : extra encoding elements with a Type 3 font".
Cleaning Cygwin/gcc warnings from the last patch.

EXPECTED DIFFERENCES :

None.

[src/gdevpdte.c]

2006-01-26T10:21:40.117753Z leonardo

Fix (pdfwrite) : Prevent extra encoding elements.

DETAILS :

Bug 687669 "pdfwrite : extra encoding elements with a Type 3 font".

The old code created encoding elements for entire text
with no regard to font changes. Some fonts got extra encoding elements 
for glyphs, which were moved to another font.

1. Converting pdf_encode_string into pdf_encode_string_element
   with dropping the text characters cycle.

2. Call it in process_text_modify_width, process_text_return_width
   immediately before processing a character.

3. pdf_encode_process_string is renamed into pdf_process_string_aux
   (because now it is an auxiliary function for pdf_process_string).

4. Few function prototype changes done to pass necessary data
   to pdf_encode_string_element.

After this reorganization a part of scan_cmap_text
appars to duplicate a part of pdf_encode_string_element.
Delaying a further reorganization for better times. 

EXPECTED DIFFERENCES :

None.

[src/gdevpdtc.c src/gdevpdte.c src/gdevpdtt.h]

2006-01-26T08:20:39.942266Z leonardo

Fix (pdfwrite) : Optimize cos_dict_put_copy.

DETAILS :

The old implementation produced a lot of garbage due to redundant 
adding same key-value pair to a cos_dict_t instance.
It happens because cos_dict_put_copy first creates a copy of the value in the heap.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfo.c]

2006-01-25T23:06:08.925944Z Ralph Giles

Correct a syntax error.

[toolbin/tests/run_nightly]

2006-01-25T22:14:19.978978Z leonardo

pdfwrite : Implementing composite fonts with Type 3 descendents (continued).

DETAILS :

Fixing a heap damage bug in the last patch,
which appeared due to inaccurate commitment of a wrong file state.

EXPECTED DIFFERENCES :

None.

[src/gdevpdtt.c]

2006-01-25T21:51:22.137980Z leonardo

pdfwrite : Implementing composite fonts with Type 3 descendents.

DETAILS :

Bug 687875 "pdfwrite : Type 0 FMapType 9 font with a Type 3 descendent converts to bitmaps".
Bug 687298  "(pdfwrite) composite font with Type 3 descendent".

The old code converted such fonts into bitmap fonst.
The new code converts them into multiple Type 3 fonts ;

A. If a composite font uses a CMap mapping,
the Type 3 font descendent may use any CID from the CMap.
Therefore such single Type 3 font is being converted into
multiple Type 3 fonts, each of which is restricted
with 256 characters by the PDF specification.

B. If a composite font has multiple Type 3 descendents,
each descendent form a separate Type 3 font in the PDF output
(or multiple fonts if it falls into both cases (A) and (B)).

This is a case-driven implementation, which is done with adding special branches into 
scan_cmap_text and process_text_modify_width for handling the failed cases.
Other new cases (which we have no samples for) may may need further improvements.

EXPECTED DIFFERENCES :

pdfwrite :
020-01.ps
Bug687845.ps

[src/gdevpdfx.h src/gdevpdtc.c src/gdevpdtt.c src/gdevpdte.c src/gdevpdti.c src/gdevpdtt.h]

2006-01-25T21:29:44.622210Z leonardo

Fix (pdfwrite) : Incorrect computation of a FMapType 9 text size.

DETAILS :

The old code didn't update pte->current_font before calling pdf_update_text_state,
and the matrix computation in scan_cmap_text was bug-to-bug compatible.

This is a preparation for fixing the bug 687875 
"pdfwrite : Type 0 FMapType 9 font with a Type 3 descendent converts to bitmaps".

EXPECTED DIFFERENCES :

None.

[src/gdevpdtc.c]

2006-01-25T19:42:55.998332Z leonardo

Fix : A minor modularity improvement.

DETAILS :

This change should be algorithmically equivalent.

EXPECTED DIFFERENCES :

None.

[src/zchar.c]

2006-01-25T19:22:19.285423Z Ralph Giles

Remove the errpage.ps utility. It is not being used by developers and is no longer functional. 
Bug #688511.

[lib/errpage.ps]

2006-01-25T18:18:31.504275Z Ralph Giles

Include the complete list of regressions in the report if it is less than 40 KB.

[toolbin/tests/run_nightly]

2006-01-25T18:04:36.499424Z Ralph Giles

Improve error reporting.

[toolbin/tests/run_nightly]

2006-01-25T18:01:09.701817Z Ralph Giles

Add usage messages.

[toolbin/tests/make_two_versions toolbin/tests/make_two_pdfversions]

2006-01-25T04:50:25.532213Z Ray Johnston

Add required 'quit' execution to avoid prompt thus requiring a double 'quit'.
Bug 688497.

DETAILS:

This was inadvertently removed when I thought it was not needed and was a
result of a cut-and-paste mistake. This commit will now serve to document
that the extra line _is_ needed.

EXPECTED DIFFERENCES:

None.

[src/imain.c]

2006-01-23T20:25:12.430841Z Ralph Giles

Repeat the reference to autogen.sh in the Unix-specific build 
instructions. Bug #688504.

[doc/Make.htm]

2006-01-23T18:08:18.107243Z Ralph Giles

Use the local MAX() macro instead of the MSVC implicit max() in fuzzy.c 
for portability. Also, add parentheses to silence a GCC warning.

[toolbin/tests/fuzzy.c]

2006-01-23T17:39:54.710146Z Ralph Giles

Infix .pdf. in the output of make_two_pdfversions.

[toolbin/tests/make_two_pdfversions]

2006-01-23T13:29:30.215782Z leonardo

Fix (ps2write) : Incorrect xref offsets.

DETAILS :

Bug 688502 "Incorrect xref table in the PDF stream generated by ps2write".
The old code calculated offsets from the beginning of the PS file.
We generate xref to allow a verification with PDF viewers.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfx.h src/gdevpdf.c src/gdevpdfu.c src/gdevpdfb.h]

2006-01-22T03:02:40.596096Z Alex Cherepanov

Add backward-compatible glyph names for new TTF glyphs. For instance,
/mu1 (micro symbol) is aliased to /mu (greek letter).
Bug 688265

EXPECTED DIFFERENCES :
None

[lib/gs_ttf.ps]

2006-01-21T17:32:17.337421Z Alex Cherepanov

Increase the halftone cache size to improve the performance of large
halftone cells.
Bug 687525

EXPECTED DIFFERENCES :
None

[src/gzht.h]

2006-01-20T08:20:17.716374Z leonardo

Fix : Unwinding the 6449 change (Fix detection of hexadecimal encoding in eexec portion of Type 1 fonts).

DETAILS :

The fix for the Bug 688385 caused a regression with fonttest.pdf.
Unwinding it now.

EXPECTED DIFFERENCES :

fonttest.pdf should restore.

[lib/pdf_font.ps]

2006-01-20T07:52:45.171824Z leonardo

Fix : Cygwin/gcc warnings.

EXPECTED DIFFERENCES :

None.

[src/gxi16bit.c src/gscdevn.h src/gxccman.c src/int.mak src/zfsample.c src/gxicolor.c src/gxclrast.c src/zcolor.c src/gxi12bit.c src/gdevp14.c]

2006-01-20T06:43:12.729752Z leonardo

Fix (pdfwrite, PDF/X) : Implement TrimBox, BleedBox and related Distiller parameters.

DETAILS :

Bug 688443 "TrimBox values should be customizable for PDF/X document".

Patch from Gunnar Ritter with minimal adoptation and a minimal testing.
We added sscanf to acquire TrimBox from Postscript.

EXPECTED DIFFERENCES :

None.

[doc/Ps2pdf.htm lib/gs_pdfwr.ps]

2006-01-20T06:38:30.009975Z leonardo

Fix (pdfwrite, PDF/X) : Implement TrimBox, BleedBox and related Distiller parameters, continued.

DETAILS :

Bug 688443 "TrimBox values should be customizable for PDF/X document".
Patch from Gunnar Ritter.


Adobe PDF Creation Settings, 7/27/05, p. 111:

[beg quote]
PDFXTrimBoxtoMediaBoxOffset

	Supported by: Distiller

	Type: array

	UI name: Set TrimBox to MediaBox with offsets (units)

	Default value: [0.00000 0.00000 0.00000 0.00000]

	If both the TrimBox and ArtBox entries are not specified
	in the page object, TrimBox is set to MediaBox with
	offsets. Offsets are specified as [left right top bottom].
	All numbers must be greater than or equal to 0.0. TrimBox
	offsets place TrimBox entirely inside MediaBox.

	NOTE:This setting is ignored if PDFXNoTrimBoxError is true.
[end quote]

<http://partners.adobe.com/public/developer/en/acrobat/sdk/pdf/pdf_creation_apis_and_specs/PDFCreationSettings.pdf>

EXPECTED DIFFERENCES :

None.

[src/gdevpdf.c]

2006-01-19T18:51:22.949228Z Ray Johnston

Previous patch had matrix1 matrix2 operands exchanged so scaling by cmmatrix was
wrong. This now works for resolutions other than 72. Bug 688485 for customer 850.

[lib/pdf_draw.ps]

2006-01-19T12:08:23.013531Z leonardo

Fix (pdfwrite) : Don't embed unused fonts.

DETAILS :

Bug 688106 "Unused fonts embedded in PDF".
Bug 688380 "pdfwrite: Type 3 fonts with empty CharStrings".


1. Delay font object id assignation until it is used with synch_text_state.
2. Same for font descriptors.
3. Writing a stream resource list, skip ones with no id.
4. Writing font descriptors, skip ones with no id.
5. Same for font objects.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfx.h src/gdevpdts.c src/gdevpdtd.c src/gdevpdte.c src/gdevpdtf.c src/gdevpdfu.c src/gdevpdtw.c src/gdevpdtd.h src/gdevpdtf.h]

2006-01-19T00:21:28.720381Z Ralph Giles

Correct a typo in the usage.

[toolbin/tests/update_specific]

2006-01-19T00:18:05.626817Z Ralph Giles

Accept '-r <revision number>' as well as a date spec to the 
update_specific script. Bug 688498.

[toolbin/tests/update_specific]

2006-01-18T21:01:50.698782Z Alex Cherepanov

Print error messages, don't leave them on the stack.
Bug 688491

[lib/gs_ttf.ps]

2006-01-18T13:08:41.803688Z leonardo

Fix (pdfwrite, PDF/X) : Implement TrimBox, BleedBox and related Distiller parameters.

DETAILS :

Bug 688443 "TrimBox values should be customizable for PDF/X document".

Patch from Gunnar Ritter with minimal adoptation and a minimal testing.
We added sscanf to acquire TrimBox from Postscript.

EXPECTED DIFFERENCES :

None.

[src/gdevpdfx.h src/gdevpdf.c src/gdevpdfp.c src/gdevpdfb.h]

2006-01-18T05:10:22.427953Z Ralph Giles

Apply assert patch for CMYK JPEG 2000 images from bug 688142.

[jasper/src/libjasper/jpc/jpc_dec.c]

2006-01-17T17:56:36.138363Z Ray Johnston

Apply a SubFileDecode filter to streams if the Length is valid. This prevents
reading past the end of data for filters that are not terminated, expecting
the PDF Length or 'endstream' to terminate the data. Bug 687435 for customers
780 and 870. Thanks to Alex Cherepanov for this patch.

DETAILS:
Since the Length on some broken PDF's is wrong (a warning will be issued),
this patch will not fix the case where the Length is wrong and the stream
is not terminated.

EXPECTED DIFFERENCES:

None. (according to Alex).

[lib/pdf_base.ps]

2006-01-17T13:43:24.915413Z leonardo

Fix (pdfwrite) : Loss of graphics with GraphicsAlphaBits > 1.

DETAILS :

Bug 688417 "Setting -dGraphicsAlphaBits when using -sDEVICE=pdfwrite causes loss of graphics".

1. Propagate error codes from psdf_get_bits through alpha buffer device methods.
2. Print error message in psdf_get_bits if GraphicsAlphaBits > 1.

EXPECTED DIFFERENCES :

None.

[src/gdevpsdu.c src/gdevabuf.c src/gspaint.c]

2006-01-17T08:37:48.515251Z leonardo

Fix (type 1 interpreter) : c1_hsbw of the main subglyph was replaced with one from the glyph.

DETAILS :

Bug 688453 "gs8.53 renders certain fonts incorrectly".

EXPECTED DIFFERENCES :

normal : Bug687489.ps

[src/gstype1.c src/gxtype1.h]

2006-01-17T05:13:50.629958Z leonardo

Fix (type 1 interpreter) : Improve the mlodularity about seac data.

DETAILS :

This change is algorithmically equivalent.
It is a praparation for bug 688453.

1. seac_flag is moved from Type 1 hinter (gxhintn.h) to Type 1 interpreter (gstype1.h). 
2. Type 2 interpreter (gstype2.c) appears not depending on seac_flag.

EXPECTED DIFFERENCES :

None.

[src/gstype1.c src/gstype2.c src/gxhintn.c src/gxtype1.c src/gxhintn.h src/gxtype1.h]

2006-01-17T00:26:20.734768Z Ralph Giles

Use an explicit target for ps2write.dev, depending on pdfwrite.dev.

DETAILS:
 
Previously, the pdfwrite.dev target just created a dummy ps2write.dev
file without all the dependencies, since ps2write is just an extension
of pdfwrite and depends on much of the same source.

However, this caused problems with parallel builds, and failed badly if 
a user requested ps2write without pdfwrite in the top-level makefile.

[src/devs.mak]

2006-01-16T23:30:44.016752Z Ray Johnston

A better approach to avoid having uninstallpagedevice free a device that needs
closing. Bug 688494. Thanks to leo for the suggestion.

DETAILS:

Increment the rc_assign prior to the .uninstallpagedevice to insure that the
device is still around afterwards so we can call gs_closedevice on it. Many
devices don't need the closedevice, but some might.

[src/imain.c]

2006-01-16T19:08:58.896938Z Ralph Giles

Remove gsmalloc.h from source files that no longer use gs_malloc() or 
gs_memory_default.

[src/lib.mak src/zfdctd.c src/zfdcte.c src/int.mak src/sdctc.c src/sdctd.c src/sdcte.c src/szlibc.c src/szlibd.c src/szlibe.c]

2006-01-16T17:25:29.114707Z Ray Johnston

Make sure that the final gs_closedevice isn't called on a device that has been
freed during the final .uninstallpagedevice. Bug 688494.

DETAILS:

The overprint device or other compositors can (under some circumstances) have
a reference count of 1 when the gs_lib_finit is called, which means that the
'nulldevice' operator executed by the .uninstallpagedevice will free the
compositor when the rc_assign to the graphics state is performed.

To avoid an operation on a pointer to freed memory, don't attempt to close
the device if the ref_count prior to the unistallpagedevice was 1.

EXPECTED DIFFERENCES:

None.

[src/imain.c]

2006-01-16T14:06:57.132584Z leonardo

Fix (pdfx) : Registered printing conditions don't need an ICC profile.

DETAILS :

Bug 688476 "PDF/X-3 without ICC profile".

We could got more knowledge from http://www.color.org/IPA_2003-11_PDFX.pdf .
The main one is the RegistryName key, which we didn't see before. 

Rather PDFX_def.ps becomes complicated, currently we don't try to
simplify the user interface because we've got insufficient
information about user requirements to it.

EXPECTED DIFFERENCES :

None.

[lib/PDFX_def.ps doc/Ps2pdf.htm]

2006-01-16T11:48:41.730324Z leonardo

Fix (type 1 interpreter) : ce1_setcurrentpoint was wrong in a subglyph.

DETAILS :

Bug 688481 "wrong rendering of Type 1 font".

1. ce1_setcurrentpoint didn't account the position of a subglyph in the glyph.
   The bug was contributed with attaching the new Type 1 hinter
   (gstype1.c rev. 1.23, 1.13).
2. (minor change) A wrong condition for opening a visual trace in gxhintn.c . 

EXPECTED DIFFERENCES :

None.

[src/gstype1.c src/gxhintn.c]

2006-01-16T05:44:16.806614Z Ray Johnston

Update the PDF text matrix basis (TextSaveMatrix) when a 'cm' occurs within a
BT/ET section. Bug 688485 for customer #850.

DETAILS:

Apparently this is rare -- none of the previous regression tests had this case
(a 'cm' inside a BT/ET section). The 'missing' Arabic text was actually outside
the clipping path, so nothing was painted.

EXPECTED DIFFERENCES:

None. I ran the PDF subset of the regression suite and none of the files had
this.

[lib/pdf_draw.ps]

2006-01-16T05:22:18.914647Z leonardo

pdfwrite : Implementing DeviceN attributes, part 1.

DETAILS :

Bug 688406 "pdfwrite : wrong overprint color from Altona_Visual_1v2a_x3.pdf".

This is a partial implementation for DeviceN attributes in pdfwrite.
It is restricted with information, which the graphics library currently provides.
For a complete implementation need a complete fix for Bug 688413.

1. Added a writing of attributes Colorants in gdevpdfc.c .
2. Don't write a resource list for resourceOther, because they are not real PDF resources.

EXPECTED DIFFERENCES :

pdfwrite Bug687660a.ps

[src/gdevpdfc.c src/gdevpdfu.c src/devs.mak]

2006-01-15T13:42:29.836501Z leonardo

Use a floating point representation for a huge Type 3 text width.

DETAILS :

Bug 687822 "/limitcheck in --setcharwidth--".

We guess the test document uses huge characters for metric computations
rather than for a real rendering.

When a text has a big width (and therefore it is not cached),
we use a new field gs_show_enum::wxy_float instead wxy,
because the latter overflows.
We implement it for Type 3 only due to no other test cases.

EXPECTED DIFFERENCES :

None.

[src/gxchar.c src/gxchar.h]

2006-01-13T22:09:55.060982Z stefan

dprintf format string repair.

[src/zfcid0.c]

2006-01-13T21:59:13.702725Z stefan

Added printf format string argument checking under gcc to std.h

Corrected or commented existing errors.

NB: gx_color_index maybe 4 or 8 giving interesting results to printf
that choose to do:  "color is %lx", color

[src/gdevxcmp.c src/gxi16bit.c src/std.h src/zfcid0.c src/gdevpsf2.c src/gsfcmap1.c src/gsmemory.c src/gxpflat.c src/gxicolor.c src/gxi12bit.c src/gdevp14.c src/stream.c]

2006-01-13T20:56:57.627440Z leonardo

Fix (pdfwrite) : Type 3 font indeterminizm.

DETAILS :

Bug 688379 pdfwrite: "an indeterministic behavior with Bug687660a.ps" from Comment #21. 

During a garbage collection Type 3 font glyph names were not marked.
Therefore they could be collected and later get different name indices.
Several fonts could be gererated from a single Type 3 font.

EXPECTED DIFFERENCES :

pdfwrite Bug687660a.ps

[src/gdevpdtt.c src/gdevpdtf.c src/gdevpdtf.h]

2006-01-13T19:19:26.202800Z Ray Johnston

Minor cleanup to remove a line that was left in from a cut-and-paste when this
call was added. Discovered during bug 688487.

[src/imain.c]

2006-01-13T08:29:47.649971Z Dan Coby

Fix for 688487 A crash from garbage collector pointer validation.
This is an addition to 688413 DeviceN under implements 'attributes'

DETAILS:

The GC validation problem was caused by the DeviceN attribute list elements
not being freed.  These list elements contained Separation color spaces.
The color spaces contained a 'map' element which was being freed.  The
GC validation logic was detecting the that the color spaces were pointing
to a freed item.

The fix consists of adding a reference count to the gs_device_n_attributes
structure plus the appropriate logic for incrementing/decrementing.

The name of the DeviceN attributes list was changed to colorants per
Igor's request.

[src/gscspace.h src/gxcdevn.h src/gscdevn.c]

2006-01-12T12:02:56.192425Z Alex Cherepanov

Fix an out of range subscript in Gimp (XCF) export device and a few minor
issues identified by Intel C++ .
Bug 687292

[src/imain.c src/gxfcopy.c src/gdevxcf.c src/zcolor.c]

2006-01-12T11:43:04.185594Z Alex Cherepanov

Fix detection of hexadecimal encoding in eexec portion of Type 1 fonts.
Bug 688385

DETAILS:

The old code that detected hexadecimal encoding appeared to do the reverse.
It worked because PDF is defined to use binary encoding only in the eexec
portion of the font and conversion to hex won't spoil the binary stream.

However, conversion to hex breaks hexadecimal streams. The proposed patch
adds more precise checking for the hexadecimal encoding similar to
the checking algorithm in the eexec operator.

[lib/pdf_font.ps]

2006-01-12T07:10:34.762843Z Ralph Giles

Virtualize the global ctx pointer so it can be replaced by different 
implementations at the stream level.

[src/zfjbig2.c src/sjbig2.c src/sjbig2.h]

2006-01-12T07:09:08.418655Z Ralph Giles

Remove an unused funtion. This was used but the now removed ARCH_CACHE_* 
logic.

[src/genarch.c]

2006-01-12T00:42:19.645669Z Dan Coby

Fix for 688488 Since Jan 7 2006, many regression files get 'typecheck in --execfunction--'

DETAILS:

The commit for 688413 introduced a new problem.  If the attributes dictionary contains a reference to a separation color space which had already been resolved, then a conflict occured with the processing of the alternate tint transform function.  This patch eliminates the conflict by creating a new copy of the DeviceN color space array and the attributes array when the color space is resolved.

[lib/pdf_draw.ps]

2006-01-11T13:20:01.631161Z Alex Cherepanov

Move back-up CharString construction procedures (RD, ND, ...) to a special
dictionary and put it below userdict to avoid warnings when the font
defines them in userdict.
Bug 688464


DETAILS:

Some broken fonts forget to define CharString construction procedures because
non-PostScript font rasterizers don't detect this error. Ghostscript has
a back-up definitions of the procedures that do their job and issue a warning.

Other correct but old-fashioned fonts define CharString construction procedures
in userdict. We had the back-up procedures defined above userdict, where they
preempted the userdict definitions and issued a bogus warning. This patch moves
the definitions below userdict.

[lib/pdf_font.ps]

2006-01-06T23:27:45.066243Z Ralph Giles

Update the regression code to use the new SVN repository. This also includes some 
other minor fixes. The new version of update_specific hasn't been tested.

[toolbin/tests/run_nightly toolbin/tests/testing.cfg.example toolbin/tests/update_specific toolbin/tests/gstestgs.py]

2006-01-06T19:10:31.983184Z Dan Coby

Remove "#if 1" that crept into the last commit.

[src/gscdevn.c]

2006-01-06T19:08:06.688571Z Ralph Giles

Remove the lowercase versions of some of the less common arch.h #defines in favor 
of uppercase versions as per C-style.

[src/gxobj.h src/gxcmap.c src/gxbitmap.h src/gxfarith.h src/siscale.c src/imainarg.c src/gdevdbit.c src/iref.h src/gxclutil.c src/std.h src/gsmalloc.c src/zusparam.c src/gxfixed.h src/gxbitops.h src/ipacked.h src/gxbcache.h src/ibnum.c]

2006-01-06T19:01:15.497779Z Ralph Giles

Remove the check for files not listed in CVS.

DETAILS:

This no longer works since we've switched to subversion for version control. The 
check could of course be ported, but the object was the detect files that had 
either accidentally been left out of a commit, or files that might slip into a
release unintentionally. The 'svn status' command is an effective and more 
commonly used check for the former, and our policy of building releases from
a clean export of the tag eliminates the other.

[toolbin/tests/check_dirs.py]

2006-01-06T18:56:33.954639Z Dan Coby

Partial fix for 688413 DeviceN under implements 'attributes'

DETAILS:

This patch implements the passing of DeviceN attribute color spaces into the graphics library.  The patch consists of the following pieces:

1. In lib/gs_devn.ps:  Attribute color spaces are processed like another color space and then .attachattributecolorspace is called to associate the attribute color space with a DeviceN color space.

2. In lib/pdf_draw.ps: Logic wa added to resolve references to attribute color spaces in PDF DeviceN color spaces.

3. In src/zcsdevn.c and src/gscdevn.c: The implementation of the .attachattributecolorspace is done.

4. Header files were modified to add the attribute color space structures and fields.

5. GC enumeration and relocation logic was added.

[src/zcsdevn.c src/gscspace.h src/gxcdevn.h lib/gs_devn.ps lib/pdf_draw.ps src/gscdevn.c]

2006-01-06T18:54:32.653218Z Ralph Giles

Add the PDFA_def prefix file to the file documentation.

[doc/Psfiles.htm]

2006-01-06T12:27:00.677606Z Alex Cherepanov

Implementation of the remaining TN 5044 operators,
Bug 688268

[lib/gs_lev2.ps]

2006-01-04T22:01:24.416332Z Ralph Giles

Remove the unused ARCH_CACHE defines and the code in genarch.c that 
creates them. Bug 688469.

DETAILS:

The cache detection was both slow and unreliable, especially given the 
spread of cpu and memory speeds now available. Furthermore, no use was
being made of these attempted cache size measurements. We have therefore
removed them as a simplification.

Choosing the blocksize of large inner loops can indeed be a good 
technique, but this is a case of premature optimization. Moreover,
it's usually better to test at run time with the actual algorithm
in question than try to work from a general number.

[src/std.h doc/Make.htm src/genarch.c]

2005-12-30T20:35:22.773764Z Ralph Giles

Ignore generated files in the jasper subtree.

[jasper jasper/src/libjasper/pgx jasper/src/libjasper jasper/src/libjasper/include/jasper /trunk/gs jasper/src/libjasper/base jasper/src/libjasper/mif jasper/src/libjasper/jpc jasper/src/libjasper/bmp jasper/src/libjasper/jpg jasper/src/appl jasper/src/libjasper/include jasper/src jasper/src/libjasper/ras jasper/src/libjasper/pnm jasper/src/libjasper/jp2 jasper/src/msvc]

2005-12-29T01:11:43.615008Z Alex Cherepanov

Clean-up temporary parameter files created by batch files.
Bug 688471

[lib/ps2ps2.bat lib/ps2ps.bat]

2005-12-28T20:48:32.669903Z Ralph Giles

Apply Raph's patch to handle broken channel specifications.

[jpeg/jdmarker.c]

2005-12-28T20:46:39.574800Z Ralph Giles

Copy the IJG jpeg-6b source from /tags/.

[jpeg]

2005-12-28T20:45:24.158383Z Ralph Giles

Remove our local jpeg in favor of one copied from tags.

[jpeg]

2005-12-28T20:39:05.309532Z Ralph Giles

Copy in tagged zlib and libpng source.

[libpng zlib]

2005-12-28T20:37:11.865745Z Ralph Giles

Remove local copies of zlib and libpng in favor of ones copied from /tags/

[libpng zlib]

2005-12-28T20:11:05.093674Z Ralph Giles

Convert .cvsignore settings.

[src/.cvsignore ijs src .cvsignore contrib/pscolor/.cvsignore /trunk/gs contrib/pscolor ijs/.cvsignore]

2005-12-28T19:56:24.767413Z Ralph Giles

Enable Id keyword substitution on appropriate files.

[src/iplugin.h src/gdevm48.c src/gsgdata.h lib/pfbtopfa.ps src/configure.ac src/gdevmsxf.c src/gsropt.h src/gdevmem.c man/ps2epsi.1 src/gdevmem.h src/zvmem.c src/write_t1.c jasper/src/libjasper/base/jas_seq.c src/rm.cmd src/gstrap.c src/icstate.h src/gxxfont.h src/write_t1.h lib/gs_epsf.ps src/gstrap.h src/gzacpath.h src/gscssub.c src/gdevcgmx.h src/gp_msdos.c src/gdevlbp8.c src/gdevpdfx.h src/gdevdm24.c src/zcsdevn.c src/dwsetup.rc src/gxdhtserial.c src/icie.h src/zcontext.c src/gscssub.h zlib/contrib/ada/buffer_demo.adb jasper/src/libjasper/include/jasper/jas_malloc.h src/gdevpdts.c src/ccfont.h src/gxdither.h src/gxdhtserial.h src/cp.cmd lib/gslp.ps src/gdevpdts.h src/macsystypes.h src/gxclutil.c lib/font2c.cmd src/gxcomp.h lib/level1.ps src/echogs.c lib/lpgs.bat src/oper.h doc/History7.htm src/zchar42.c toolbin/tests/cmpi.py lib/gs_lev2.ps src/gscscie.c src/gsfont0.c src/zchar42.h src/icfontab.c src/zht1.c toolbin/gssubst src/zpcolor.c src/zdevcal.c src/gdevpdfi.c src/zcssepr.c doc/Install.htm src/ifont42.h src/sdcparam.c lib/markhint.ps zlib/uncompr.c src/bcwin32.mak doc/Issues.htm src/sdcparam.h jasper/src/libjasper/jpc/jpc_math.c src/gdevpdtd.c src/gdevokii.c src/zcfont.c src/gdevprna.c src/gdevpdtd.h toolbin/makefonts.tcl jasper/src/libjasper/include/jasper/jas_cm.h src/zcolor.c src/gxhtbit.c src/oparc.h jasper/src/libjasper/jp2/jp2_cod.c src/sfxfd.c src/gdevprna.h lib/caption.ps jasper/src/libjasper/jp2/jp2_cod.h src/gp_mspol.c src/dwuninst.h src/gpmisc.c src/ttconfig.h src/ireclaim.c toolbin/pdfinflt.ps src/gxstdio.h src/gsmemraw.h src/gpmisc.h lib/gs_cidcm.ps toolbin/split_changelog.py doc/Lib.htm src/gxline.h lib/bdftops.cmd lib/FAPIconfig doc/Ps-style.htm man/gslp.1 toolbin/tests/check_docrefs.py jbig2dec/Makefile.am lib/traceimg.ps src/ijs.mak src/gserver.c src/gp_psync.c toolbin/tests/update_baseline man/de/pdfopt.1 src/gp_os2pr.c src/gsiomacres.c src/gdevpsd.c src/gxclfile.c man/de/wftopfa.1 src/gxfilltr.h man/de/ps2ps.1 src/gdebug.h lib/viewpcx.ps toolbin/tests/gsconf.py src/zfile.c jasper/src/libjasper/jpc/jpc_bs.c src/gdev4693.c src/gxchar.c lib/gs_indxd.ps jasper/src/libjasper/jpc/jpc_bs.h src/gxchar.h src/gsfcid2.c src/gsline.c src/gsalloc.c doc/Helpers.htm lib/dumphint src/gsline.h src/gsalloc.h src/gsiparm2.h src/gxfont0.h lib/gs_ksb_e.ps lib/ps2pdf.cmd src/gdevmeds.c src/gs16spl.c src/gdev4081.c src/gdevmeds.h src/srdline.h src/dpmain.c src/wctail.mak src/winlib.mak jasper/src/libjasper/jp2/jp2_enc.c doc/History8.htm src/szlibx.h src/zmath.c jbig2dec/jbig2_image_png.c toolbin/tests/make_two_pdfversions src/gdevpdfk.c lib/jispaper.ps src/gxfont0c.h src/iimage.h jasper/src/libjasper/jp2/jp2_dec.c src/gxpcolor.h src/gdevpdtf.c doc/Xfonts.htm src/gp_unifn.c src/gdevddrw.c src/gschar.c src/gdevpdtf.h src/gdevddrw.h src/gdevpsfm.c src/sarc4.c lib/traceop.ps src/gschar.h src/gdevpsu.c src/gsptype2.c src/zfcid1.c src/sarc4.h src/gstrans.c src/gdevpsu.h src/gsptype2.h src/catmake zlib/crc32.c src/gstrans.h src/iestack.h src/gxbitfmt.h src/gxclio.h lib/pdf_rbld.ps src/gstype2.c src/itoken.h lib/pdf2ps.bat lib/gs_dscp.ps src/inameidx.h src/gxhldevc.c lib/gs_devn.ps zlib/contrib/iostream2/zstream.h src/gxhldevc.h lib/pdfopt.ps src/sfxboth.c src/gp_macio.c src/wrfont.c src/sbhc.c lib/viewps2a.ps src/gsdps.c src/zfont1.c src/wrfont.h src/sbhc.h doc/Maintain.htm jbig2dec/jbig2_priv.h man/de/gsnd.1 lib/gs_dbt_e.ps src/gsdps.h src/spngp.c src/ghost.h jbig2dec/jbig2dec.c toolbin/tests/check_all.py doc/gs.css toolbin/tests/gsutil.py src/gxalloc.h src/gsmatrix.c src/gxsamplp.h lib/cidfmap src/istruct.h src/gdevpsf.h src/gsmatrix.h src/zdouble.c src/dwreg.c jasper/src/libjasper/include/jasper/jas_getopt.h src/spdiff.c src/gxfcmap1.h lib/pf2afm.cmd jasper/src/libjasper/base/jas_s