[gs-cvs] rev 7720 - trunk/gs/doc
ray at ghostscript.com
ray at ghostscript.com
Tue Feb 20 11:25:10 PST 2007
Author: ray
Date: 2007-02-20 11:25:10 -0800 (Tue, 20 Feb 2007)
New Revision: 7720
Modified:
trunk/gs/doc/pscet_status.txt
Log:
Update comments on some pages and change some assignments to Alex that
are error message differences. Two more pages resolved.
Modified: trunk/gs/doc/pscet_status.txt
===================================================================
--- trunk/gs/doc/pscet_status.txt 2007-02-20 16:40:21 UTC (rev 7719)
+++ trunk/gs/doc/pscet_status.txt 2007-02-20 19:25:10 UTC (rev 7720)
@@ -546,91 +546,23 @@
This verified to me that GS is doing the right thing. TIM
cps/09-34-2 missing
-09-34-3 AOK GS has missing graphic, Tek shows Cyan for 'SeparateUncyan setcolorspace'
- (right of "1.0" text). Probably RGB vs. CMYK device color
- NOTE: AD7 and Tek hardcopy output differ in same areas.a - RJJ
- There are two things happening with this page. The 'SeparateUncyan'
- issue is another example of a separation color space which has a
- tint transform function which does not produce logically consistent
- results. Thus the output depends upon whether or not the tint transform
- function is used. This can be seen by disabling the 'Overprint Preview'
- feature in Acrobat 7.0. GS produces results which are consistent with
- Acrobat for both cases. (this is expaected).
- The second issue (which is a problem) is a difference in the appearance
- of the color spaces below the text that says "( /HIVAL 4095 def )"
- (Apparently a similar problem as the one seen in 09-34-02). - ADC
- --
- To analyze 09-34-3, I added some PostScript to print out the
- HIVAL, input value and CMYK output values for the section that
- uses the Indexed_CMYK_Proc colorspace with a HIVAL of 4095. Here
- is what I got for the printout from both Distiller 5.0 and GS:
- --
- HIVAL= 4095
- in= 0.0
- C= 0.0
- M= 0.0
- Y= 0.0
- K= 0.0
- HIVAL= 4095
- in= 1024
- C= 0.250061
- M= 0.500244
- Y= 0.750183
- K= 0.000977517
- HIVAL= 4095
- in= 2048
- C= 0.500122
- M= 0.00048852
- Y= 0.500366
- K= 0.00195503
- HIVAL= 4095
- in= 3072
- C= 0.750183
- M= 0.500733
- Y= 0.250549
- K= 0.00293255
- HIVAL= 4095
- in= 4095
- C= 1
- M= 0.00048852
- Y= 0.0
- K= 0.00293255
- --
- What Acrobat (AD5 and AD7) produces is only one black graphic
- for the line "GS Indexed_CMYK_Proc setcolorspace 4095 setcolor Q".
- For all of the other input values (0,1024,2048 and 3072) no
- output is produced from Acrobat. Based upon the CMYK values that
- the lookup proc is returning for both AD5 and GS, GS looks to be
- doing the right thing here. I have no idea why Acrobat seems to
- be failing on this.
- --
- In this respect, this page is AOK by me.
- --
- For the SeparateUnCyan colorspace section I did a similar thing.
- I printed out the value passed into the tinttransform proc as
- well as the values passed back by same. Since M,Y and K are
- always zero, I only had to print out the Cyan value. Again, both
- from Acrobat and GS I get the following values back:
- --
- in= 0.0
- C= 1.0
- in= 0.0
- C= 1.0
- in= 0.1
- C= 0.9
- in= 0.287
- C= 0.713
- in= 0.42
- C= 0.580000043
- in= 0.821
- C= 0.17900002
- in= 1.0
- C= 0.0
- in= 1.0
- C= 0.0
- --
- Based upon these values, I believe that we are doing the right
- thing here and that this should be marked AOK. as well. TIM
+09-34-3 AOK GS RGB has missing graphic, Tek shows Cyan for 'SeparateUncyan setcolorspace'
+ (right of "1.0" text). GS matches Tek if Cyan, Magenta, Yellow and Black
+ Separation colorspaces are known, as with the 'tiffsep' device. A printer
+ that is CMYK will usually have the Separations available for overprint
+ effects. RJJ
+ -
+ NOTE: AD7 and Tek hardcopy output differ in same areas. RJJ
+ GS produces output matching Tektronix if 'tiffsep' device since this
+ device does not use the tint transform on /Cyan separation used in the
+ SeparationUncyan section.
+ -
+ The 'SeparateUncyan' issue is another example of a separation color space
+ which (intentionally ?) has a tint transform function which produces different
+ colors when it is used. Thus the output depends upon whether or not the tint
+ transform function is used. This can be seen by disabling the 'Overprint
+ Preview' feature in Acrobat 7.0. GS produces results which are consistent with
+ Acrobat for both cases. (this is expected). ADC
cpsi/09-34-3 missing
09-34-4 OK Matches Tek hardcopy output. RJJ
@@ -648,7 +580,7 @@
09-34-7 AOK GS has different 'currentcolor' results and different color graphics
Probably RGB vs. CMYK device color
NOTE: AD7 and Tek hardcopy output differ in same areas. - RJJ
- Thre are two issues with this page. The first issue is the colors of
+ There are two issues with this page. The first issue is the colors of
of the various graphics on the page. The page has spot colors. It
also has tint transform functions which do not provide logically
consistent results. Thus the appearance of the graphics depend upon
@@ -701,9 +633,6 @@
and used only for computing the segment length.
The old fixed coordinated are used for anything else
as they do now.
- -
- Passing to Raph who should make the decision whether to do this change.
- assign: Raph.
09-36-5 DIFF In "Technical Paths", Ghostscript differs a lot, combination
of 09-24-2 linecap linejoin issues and dash issues. Defer
@@ -1338,22 +1267,26 @@
09-47M-1 AOK Test01: The corner colors are : black red
green white
GS paints entire shading.
- CPSI misses for imagemask and character.
+ CPSI misses for imagemask and character. AD7 paints character,
+ but misses imagemask.
Analyzed by Igor.
09-47M-2 OK Fixed by rev 7149.
09-47M-3 OK Fixed by rev 7169.
-09-47M-4 DIFF Test01 : ok, similar to 09-47M-1 .
+09-47M-4 AOK Test01 : ok, similar to 09-47M-1. (CPSI misses imagemask and
+ character, AD7 misses imagemask).
-
Test04: ok - Fixed with rev 7210.
+ Note: AD7 gets "drawing error" on the PDF it creates from this
+ as it is drawing Test04. GS is able to display entire Page and
+ output matches GS rendering of 09-47M.PS. Bug in Acrobat 7
+ Reader!
-
Test09: ok - Fixed with rev 7210.
-
Test10, Test11, Test12: ok - Fixed by rev 7206
- -
- No problem description assign: Ray
09-47M-5 AOK GS has smoother shadings (CPSI has triangle 'glitches'
with self-intersectint tensor: Test05, 06
@@ -3845,20 +3778,16 @@
Test 8-12 colors darker in Adobe than GS. - Raph
assign Tim
-18-02B-8 DIFF 18-02A-4 repeat
- rangecheck vs. typecheck
- missing /Function -9dict-. assign Ray
- Fill rule is ok. Test 10-12 shadings sharper in GS than Adobe.
- Test 1,2 colors darker in Adobe than GS. - Raph
+18-02B-8 OK Probably fixed by r7114.
18-02B-9 AOK 18-02A-4 repeat
Fill rule is ok, shadings sharper in GS than Adobe. - Raph
18-02C-1 DIFF rangecheck vs. typecheck.
- undefined in cpsi not in gs. assign Ray
+ undefined in cpsi not in GS. assign: Alex
-18-02D-1 DIFF gs missing text.
- gs printing extra pattern mid-page. assign Ray.
+18-02D-1 DIFF GS missing text. GS has different error messages.
+ GS printing extra pattern mid-page. assign Alex
18-02E-1 DIFF much of postscript dump missing in gs. assign Ray
@@ -4090,9 +4019,9 @@
20-24-2 OK
20-25-1 OK Ghostscript matches Tek and Distiller 5. CPSI-based PhotoPrint
- product has /show operator redefined as a procedure, probably,
- becaus of CSL installation. PhotoPrint cannot serve as a
- reference implementation here, - Alex
+ product has /show operator redefined as a procedure in the
+ RenderingIntent ProcSet. CPSI matches GS and Tek when this
+ ProcSet is disabled. RJJ
20-25-2 OK
@@ -4925,9 +4854,9 @@
28-02-3 OK
-28-03-1 DIFF Error messages and postscript language string output differences -- Assigned to Ray
- "Section 6.3 - SYNTAX" is implementation dependent. GS doesn't need to match the internal
- dump names of the PS interpreter. "ILLEGAL" test GS has different error messages:
+28-03-1 DIFF "Section 6.3 - SYNTAX" AOK is implementation dependent. GS doesn't need to match the internal
+ dump names of the PS interpreter. "ILLEGAL" test GS has different error messages.
+ Assign: Alex
28-03-2 OK
@@ -4937,7 +4866,7 @@
28-05-1 OK
-28-05-2 DIFF Same as 28-03-1 assign ray
+28-05-2 DIFF CPSI doesn't execute 'for' proc if increment is 0, GS does. Assign: Ray
28-05-3 OK
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