Bug 691451 - Regression in pngalpha output between 8.71 and head (r11502)
Summary: Regression in pngalpha output between 8.71 and head (r11502)
Status: RESOLVED DUPLICATE of bug 691328
Alias: None
Product: Ghostscript
Classification: Unclassified
Component: Graphics Library (show other bugs)
Version: master
Hardware: PC Windows XP
: P4 normal
Assignee: Default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-07-11 23:41 UTC by pipitas
Modified: 2010-07-29 17:45 UTC (History)
0 users

See Also:
Customer:
Word Size: ---


Attachments
This PDF can be used to reproduce a regression with output device pngalpha.. (48.41 KB, application/pdf)
2010-07-11 23:52 UTC, pipitas
Details
PNG created by GS-8.71 (246.88 KB, image/png)
2010-07-11 23:53 UTC, pipitas
Details
PNG created by GS from current SVN head (r11502) (273.46 KB, image/png)
2010-07-11 23:54 UTC, pipitas
Details

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Description pipitas 2010-07-11 23:41:39 UTC
(Not sure if I selected the right bugzilla "product component" for this.)

I'm seeing different results when using "-sDEVICE=pngalpha" output with PDF input. Example files will be attached to this report.
Comment 1 pipitas 2010-07-11 23:52:23 UTC
Created attachment 6453 [details]
This PDF can be used to reproduce a regression with output device pngalpha..

Using these commands to produce 2 different PNG files:

1. with GS release 8.71:
------------------------
   gswin32.exe ^
       -dNOPAUSE -dBATCH ^
       -sDEVICE=pngalpha ^
       -r72 ^
       -sOutputFile=release8.71-pngalpha-nobug.png ^
       -f svn-r11502-pngalpha-bug.pdf

2. with GS head (SVN r11502):
-----------------------------
   C:\downloads\svn.ghostscript.com.ghostpdl\gs\debugbin\gswin32.exe ^
       -dNOPAUSE -dBATCH ^
       -sDEVICE=pngalpha ^
       -r72 ^
       -sOutputFile=release8.71-pngalpha-nobug.png ^
       -f svn-r11502-pngalpha-bug.pdf
Comment 2 pipitas 2010-07-11 23:53:18 UTC
Created attachment 6454 [details]
PNG created by GS-8.71
Comment 3 pipitas 2010-07-11 23:54:03 UTC
Created attachment 6455 [details]
PNG created by GS from current SVN head (r11502)
Comment 4 pipitas 2010-07-12 00:02:52 UTC
Original PDF was created by "Adobe InDesign CS2 (4.0)". I extracted the 1st page from it with Ghostscript (hence the changed metadata) to have a smaller testcase.
Comment 5 Marcos H. Woehrmann 2010-07-29 17:45:07 UTC
Thanks for reporting this, it was fixed a few days ago as part of bug 691328.
Comment 6 Marcos H. Woehrmann 2010-07-29 17:45:22 UTC

*** This bug has been marked as a duplicate of bug 691328 ***