[Mesa-dev] [Bug 67924] New: [softpipe] piglit tesselation quad_strip wireframe regression

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67924

          Priority: medium
            Bug ID: 67924
          Keywords: regression
                CC: zackr at vmware.com
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: [softpipe] piglit tesselation quad_strip wireframe
                    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: 2c2e64edaba0f6aeb181ca5b51eb8dea8e9b39f9 (master)


$ ./bin/ext_transform_feedback-tessellation quad_strip wireframe -auto
Probe at (48,129)
  Expected: 0.000000 0.000000 0.000000 0.000000
  Observed: 0.501961 0.501961 0.501961 0.501961
PIGLIT: {'result': 'fail' }


d6b3a193d4d525c5048ebf793e6a63fd98f92d64 is the first bad commit
commit d6b3a193d4d525c5048ebf793e6a63fd98f92d64
Author: Zack Rusin <zackr at vmware.com>
Date:   Wed Jul 31 07:34:49 2013 -0400

    draw: inject frontface info into wireframe outputs

    Draw module can decompose primitives into wireframe models, which
    is a fancy word for 'lines', unfortunately that decomposition means
    that we weren't able to preserve the original front-face info which
    could be derived from the original primitives (lines don't have a
    'face'). To fix it allow draw module to inject a fake face semantic
    into outputs from which the backends can figure out the original
    frontfacing info of the primitives.

    Signed-off-by: Zack Rusin <zackr at vmware.com>
    Reviewed-by: Roland Scheidegger <sroland at vmware.com>
    Reviewed-by: Jose Fonseca <jfonseca at vmware.com>

:040000 040000 c03c3c58f6b2d41a576aa2c1388323bc4fdfb21e
cb98c963ea0f7797496053122ad6b5c3f56a1861 M    src
bisect run success

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