[gs-bugs] [Bug 689246] ENABLE_CUSTOM_COLOR_CALLBACK gives all colors as black.

bugs.ghostscript.com-bugzilla-daemon at ghostscript.com bugs.ghostscript.com-bugzilla-daemon at ghostscript.com
Mon Jul 14 13:34:55 PDT 2008


michael.vrhel at artifex.com changed:

           What    |Removed                     |Added
Attachment #4081 is|0                           |1
           obsolete|                            |

------- Additional Comments From michael.vrhel at artifex.com  2008-07-14 13:34 -------
Created an attachment (id=4217)
 --> (http://bugs.ghostscript.com/attachment.cgi?id=4217&action=view)

When run against the standard regression, this patch has expected differences
in about 62 files with -dDOINTERPOLATE enabled.  I went through these pages of
those files and the differences all appear correct to me.  Basically anytime
you do interpolation in a nondevice space it will differ from the existing
code.  The current patch performs the spatial interpolation in the source color
space.	If the source color space is an indexed space, the base color space is
used.  Following interpolation, the color values are transformed to the
concrete device space.	

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