[gs-bugs] [Bug 689983] Regression: differences in 148-11.ps in page mode vs. banding

bugs.ghostscript.com-bugzilla-daemon at ghostscript.com bugs.ghostscript.com-bugzilla-daemon at ghostscript.com
Mon Jul 28 15:03:51 PDT 2008


http://bugs.ghostscript.com/show_bug.cgi?id=689983





------- Additional Comments From michael.vrhel at artifex.com  2008-07-28 15:03 -------
Created an attachment (id=4244)
 --> (http://bugs.ghostscript.com/attachment.cgi?id=4244&action=view)
Interp_Bug_Patch.diff

This patch fixes the issue.  Issue was caused by me thinking that we were
always indexing in the source data by one byte forward when we were dealing
with and indexed image.  If the geometric transformation matrix had a -xx value
we end up going backwards through the data.



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