[Mesa-dev] [Bug 65225] New: [softpipe] piglit interpolation-none-gl_BackColor-flat-fixed regression

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65225

          Priority: medium
            Bug ID: 65225
          Keywords: regression
                CC: zackr at vmware.com
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: [softpipe] piglit
                    interpolation-none-gl_BackColor-flat-fixed regression
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: vlee at freedesktop.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Mesa core
           Product: Mesa

mesa: 869c5d438f137b2c6b9aec1dddc00bfa64f36621 (master)

$ ./bin/shader_runner
generated_tests/spec/glsl-1.10/execution/interpolation/interpolation-none-gl_BackColor-flat-fixed.shader_test
-auto
Mesa warning: failed to remap glClampColorARB
Mesa warning: failed to remap glTexBufferARB
Mesa warning: failed to remap glFramebufferTextureARB
Mesa warning: failed to remap glVertexAttribDivisorARB
Mesa warning: failed to remap glProgramParameteriARB
Probe at (159,45)
  Expected: 0.000000 0.000000 1.000000 1.000000
  Observed: 1.000000 1.000000 0.000000 0.572549
Probe at (192,38)
  Expected: 0.000000 0.000000 1.000000 1.000000
  Observed: 1.000000 1.000000 0.000000 0.572549
Probe at (216,33)
  Expected: 0.000000 0.000000 1.000000 1.000000
  Observed: 1.000000 1.000000 0.000000 0.572549
Probe at (166,83)
  Expected: 0.000000 0.000000 1.000000 1.000000
  Observed: 1.000000 1.000000 0.000000 0.572549
Probe at (196,71)
  Expected: 0.000000 0.000000 1.000000 1.000000
  Observed: 1.000000 1.000000 0.000000 0.572549
Probe at (136,136)
  Expected: 0.000000 0.000000 1.000000 1.000000
  Observed: 1.000000 1.000000 0.000000 0.572549
Probe at (173,115)
  Expected: 0.000000 0.000000 1.000000 1.000000
  Observed: 1.000000 1.000000 0.000000 0.572549
Probe at (145,166)
  Expected: 0.000000 0.000000 1.000000 1.000000
  Observed: 1.000000 1.000000 0.000000 0.572549
PIGLIT: {'result': 'fail' }

4b5595b38b3884531624fab6def7c604e92d0914 is the first bad commit
commit 4b5595b38b3884531624fab6def7c604e92d0914
Author: Zack Rusin <zackr at vmware.com>
Date:   Fri May 24 16:39:59 2013 -0400

    draw: fixup draw_find_shader_output

    draw_find_shader_output like most of the code in draw used to
    depend on position always being at output slot 0. which meant
    that any other attribute being at 0 could signify an error.
    unfortunately position can be at any of the output slots, thus
    other attributes can occupy slot 0 and we need to mark the ones
    which were not found by something else. This commit changes
    draw_find_shader_output so that it returns -1 if it can't
    find the given attribute and adjust the code that depended
    on it returning >0 whenever it correctly found an attrib.

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

:040000 040000 677fc576c96383eabe6210f6a82e19592b7b59cf
220034f286f44d7e00165cfba49f5204ee1b1589 M    src
bisect run success

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