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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 glx-swap-pixmap regression"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=59833">59833</a>
          </td>
        </tr>

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

        <tr>
          <th>CC</th>
          <td>cworth@cworth.org
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>[swrast] piglit glx-swap-pixmap 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>
        <div>
        <pre>mesa: d1f2e9699f3e5e7649fc12c4f2409af91d2494fe (master)

$ ./bin/glx-swap-pixmap -auto
Probe at (0,0)
  Expected: 0.000000 1.000000 0.000000 0.000000
  Observed: 0.000000 1.000000 0.000000 1.000000
PIGLIT: {'result': 'fail' }

570ed2be7d776211e1ca2a7a4c44ee6a1d141714 is the first bad commit
commit 570ed2be7d776211e1ca2a7a4c44ee6a1d141714
Author: Carl Worth <<a href="mailto:cworth@cworth.org">cworth@cworth.org</a>>
Date:   Mon Jan 21 12:16:27 2013 -0800

    ReadPixels: Force ALPHA to 1 while rebasing RGBA values for GL_RGB format

    When performing a ReadPixels operation, we may be reading from a buffer
that
    stores alpha values, but that is actually representing a buffer with no
alpha
    channel. In this case, while rebasing the values, touch up all alpha values
    read to 1.0.

    This commit fixes the following piglit (sub) tests:

        ARB_texture_float/fbo-colormask-formats
            GL_RBG16F_ARB
        EXT_texture_snorm/fbo-colormask-formats
            GL_RGB16_SNORM
            GL_RGB8_SNORM
            GL_RGB_SNORM

    It likely improves the results of other tests as well, but a PASS remains
    elusive due to additional bugs.

    Reviewed-by: Brian Paul <<a href="mailto:brianp@vmware.com">brianp@vmware.com</a>>
    Reviewed-by: Anuj Phogat <<a href="mailto:anuj.phogat@gmail.com">anuj.phogat@gmail.com</a>>

:040000 040000 144369a7d3779929bad84beca8f3a5b2ccf90640
c25eb37e73f6f6e5435230fe8a799b1b62ed347b M    src
bisect run success</pre>
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