[Mesa-dev] [Bug 78546] New: [swrast] piglit copyteximage-border regression

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78546

          Priority: medium
            Bug ID: 78546
          Keywords: regression
                CC: eric at anholt.net, idr at freedesktop.org,
                    kenneth at whitecape.org
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: [swrast] piglit copyteximage-border regression
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: vlee at freedesktop.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Other
           Product: Mesa

mesa: d9e102b220701c15730329290daa0176751af09a (master 10.3.0-devel)

$ ./bin/copyteximage-border -auto
Probe color at (114,10)
  Expected: 1.000000 0.000000 0.000000 0.000000
  Observed: 0.000000 1.000000 0.000000 0.000000
Probe color at (145,10)
  Expected: 0.000000 1.000000 0.000000 0.000000
  Observed: 0.501961 0.501961 0.501961 0.501961
Probe color at (114,42)
  Expected: 0.000000 0.000000 1.000000 0.000000
  Observed: 1.000000 1.000000 1.000000 0.000000
Probe color at (145,42)
  Expected: 1.000000 1.000000 1.000000 0.000000
  Observed: 0.501961 0.501961 0.501961 0.501961
PIGLIT: {'result': 'fail' }

234db609544ee521458ce8b648e70cffe2fda6f9 is the first bad commit
commit 234db609544ee521458ce8b648e70cffe2fda6f9
Author: Eric Anholt <eric at anholt.net>
Date:   Fri Feb 28 13:23:25 2014 -0800

    meta: Add an accelerated glCopyTexSubImage using glBlitFramebuffer.

    You'll note from the previous commits that there's something of a loop
    here: You call CTSI, which calls BlitFB, then if things go wrong that
    falls back to CTSI.  As a result, meta CTSI reaches over into blitfb to
    tell it "no, don't try that fallback".

    v2: Drop the _mesa_update_state(), which was only necessary due to use of
        _mesa_clip_blit() in _mesa_meta_BlitFramebuffer() in another patch
        series.
    v3: Drop an _EXT suffix I copy-and-pasted.

    Reviewed-by: Ian Romanick <ian.d.romanick at intel.com> (v2)
    Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

:040000 040000 63fc3120cdedde84fc916e8ba114c2c8b5014981
3d7559710cde2597f29421dcd0a45c6423c7795b M    src
bisect run success

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