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List:       cairo-bugs
Subject:    [cairo-bugs] [Bug 41535] New: pseudocolor dosn't work in cairo
From:       bugzilla-daemon () freedesktop ! org
Date:       2011-10-06 19:34:50
Message-ID: bug-41535-4039 () http ! bugs ! freedesktop ! org/
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https://bugs.freedesktop.org/show_bug.cgi?id=41535

           Summary: pseudocolor dosn't work in cairo (1.10.2)
           Product: cairo
           Version: 1.10.2
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: xlib backend
        AssignedTo: cworth@cworth.org
        ReportedBy: bugs@mh.htnet.de
         QAContact: cairo-bugs@cairographics.org


An old problem comes as new:
The pseudo color implementation dosn't work.


after the following change the colors will work at least in cairo 1.10.2:

In File cairo-xlib-surface.c change:

else if ((image_masks.alpha_mask == surface->a_mask || surface->a_mask == 0) &&
         (image_masks.red_mask   == surface->r_mask || surface->r_mask == 0) &&
         (image_masks.green_mask == surface->g_mask || surface->g_mask == 0) &&
         (image_masks.blue_mask  == surface->b_mask || surface->b_mask == 0))


to:

else if ((image_masks.alpha_mask == surface->a_mask ) &&  
         (image_masks.red_mask   == surface->r_mask ) &&
         (image_masks.green_mask == surface->g_mask ) &&
         (image_masks.blue_mask  == surface->b_mask ))

solves the problem

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