| Summary: | File rendered incorrectly with -dGraphicsAlphaBits=4 | ||
|---|---|---|---|
| Product: | Ghostscript | Reporter: | Marcos H. Woehrmann <marcos.woehrmann> |
| Component: | Graphics Library | Assignee: | Michael Vrhel <michael.vrhel> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | christinedelight.top85 |
| Priority: | P4 | ||
| Version: | 0.00 | ||
| Hardware: | All | ||
| OS: | All | ||
| Customer: | Word Size: | --- | |
| Bug Depends on: | |||
| Bug Blocks: | 690865 | ||
| Attachments: |
scn-in-pattern.pdf
screenshot.png |
||
Created attachment 6071 [details]
screenshot.png
Created attachment 6072 [details] Bug690488.pdf This file appears to have the sam problem. Created attachment 6076 [details]
09_47N.PDF
Page 3 of this file also has a problem when converted with -dGraphicsAlphaBits=4 (though the symptoms are a bit different, so it may be an unrelated issue).
Probably the pattern cache logic needs to handle alpha better. Might be related to other work by Michael to address patterns with transparency. This appears to be fixed. Likely from when I fixed the alpha bits to work with transparency. |
Created attachment 6070 [details] scn-in-pattern.pdf The attached file is rendered incorrectly with Ghostscript when specifying -dGraphicsAlphaBits=4 on the command line (I'm comparing the output to Adobe Acrobat 9.3.1, Apple Preview 5.0.1 (503), and Artifex Ghostscript). See the attached screenshot.png for clarification. The command line I'm using: bin/gs -sDEVICE=ppmraw -r300 -dGraphicsAlphaBits=4 -o test.ppm ./scn-in-pattern.pdf