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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [swrast] piglit glsl-lod-bias regression"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=74911">74911</a>
          </td>
        </tr>

        <tr>
          <th>Keywords</th>
          <td>regression
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>eric@anholt.net, idr@freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>mesa-dev@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[swrast] piglit glsl-lod-bias regression
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>vlee@freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Mesa core
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr></table>
      <p>
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        <pre>mesa: 76f95ba2721ec3214e39711a991b510bdb3c5a36 (master)


$ ./bin/glsl-lod-bias -auto
Mesa 10.2.0-devel implementation error: meta program compile failed:
0:6(12): error: value of type vec3 cannot be assigned to variable of type vec4

source:
attribute vec2 position;
attribute vec3 textureCoords;
varying vec4 texCoords;
void main()
{
   texCoords = textureCoords;
   gl_Position = vec4(position, 0.0, 1.0);
}


Please report at <a href="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa">https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa</a>
Mesa: User error: GL_INVALID_VALUE in glAttachShader
Probe color at (75,2)
  Expected: 0.000000 1.000000 0.000000
  Observed: 0.447059 0.639216 0.466667
Probe color at (157,2)
  Expected: 0.600000 0.600000 0.600000
  Observed: 0.509804 0.533333 0.525490
Probe color at (207,2)
  Expected: 0.000000 1.000000 0.000000
  Observed: 0.600000 0.600000 0.600000
Probe color at (273,2)
  Expected: 0.000000 1.000000 0.000000
  Observed: 0.600000 0.600000 0.600000
PIGLIT: {'result': 'fail' }


10f7c544772a4b0b1f69d8e9fe4efd593c94418b is the first bad commit
commit 10f7c544772a4b0b1f69d8e9fe4efd593c94418b
Author: Ian Romanick <<a href="mailto:ian.d.romanick@intel.com">ian.d.romanick@intel.com</a>>
Date:   Mon Dec 16 15:35:02 2013 -0800

    meta: Expand texture coordinate from vec3 to vec4

    This will be necessary to support cubemap array textures because they
    use all four components.

    Signed-off-by: Ian Romanick <<a href="mailto:ian.d.romanick@intel.com">ian.d.romanick@intel.com</a>>
    Reviewed-by: Eric Anholt <<a href="mailto:eric@anholt.net">eric@anholt.net</a>>

:040000 040000 ab6708f31712fcfee8ba025fa236cd320d04bad2
fc1619427d93f0c69b76766909e080dac19fb4b4 M    src
bisect run success</pre>
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