[Mesa-dev] [Bug 49538] New: [softpipe] piglit fs-texelFetchOffset-2D regression

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=49538

             Bug #: 49538
           Summary: [softpipe] piglit fs-texelFetchOffset-2D regression
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Other
        AssignedTo: mesa-dev at lists.freedesktop.org
        ReportedBy: vlee at freedesktop.org
                CC: brianp at vmware.com


Created attachment 61083
  --> https://bugs.freedesktop.org/attachment.cgi?id=61083
fs-texelFetchOffset-2D.png

Run piglit fs-texelFetchOffset-2D on softpipe.

$ ./bin/fs-texelFetchOffset-2D -auto
Mesa warning: failed to remap index 173
Probe at (10,10)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 1.000000 0.000000 0.000000 1.000000
Probe at (30,10)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (10,30)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 1.000000 0.000000 0.000000 1.000000
Probe at (30,30)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (10,50)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 1.000000 0.000000 0.000000 1.000000
Probe at (30,50)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (10,70)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (30,70)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (70,70)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (10,90)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (30,90)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (50,90)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
Probe at (70,90)
  Expected: 0.000000 0.000000 0.000000 1.000000
  Observed: 0.000000 0.000000 1.000000 1.000000
PIGLIT: {'result': 'fail' }


92d899303a0498e53b66fe19658a2f7fd6dc9a26 is the first bad commit
commit 92d899303a0498e53b66fe19658a2f7fd6dc9a26
Author: Brian Paul <brianp at vmware.com>
Date:   Wed Apr 25 10:42:42 2012 -0600

    softpipe: implement coord clamping for texel fetches (TXF)

    The GL spec says out of bounds fetches produce undefined results.
    Use clamping to avoid failed assertions or crashes.

    Fixes failed assertion in
https://bugs.freedesktop.org/show_bug.cgi?id=49125
    but the test still fails.

    Reviewed-by: Jose Fonseca <jfonseca at vmware.com>

:040000 040000 5e7937f885db42d0e59e650ec81d32c0398f9831
8b8fc508493aa8271717ed30a9b7e74bcca02af3 M      src
bisect run success

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