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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - OSMesa Gallium llvmpipe VTK Test Failures"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63469">63469</a>
</td>
</tr>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>OSMesa Gallium llvmpipe VTK Test Failures
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hobbsk@ohiou.edu
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>git
</td>
</tr>
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<th>Component</th>
<td>Mesa core
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
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<p>
<div>
<pre>Since OSMesa switched to Gallium and defaults to the llvmpipe driver VTK's test
:
vtkRenderingOpenGLCxx-TestTransformCoordinateUseDouble
has been failing.
This test has a page on VTK's dashboard :
<a href="http://open.cdash.org/testSummary.php?project=11&name=vtkRenderingOpenGLCxx-TestTransformCoordinateUseDouble&date=2013-04-12">http://open.cdash.org/testSummary.php?project=11&name=vtkRenderingOpenGLCxx-TestTransformCoordinateUseDouble&date=2013-04-12</a>
The take home message is that the test passes in my OSMesa-9.1.1 build which
uses the Mesa Offscreen driver and fails on all of the builds that use the
llvmpipe driver.
I played around with different drivers by setting GALLIUM_DRIVER to one
llvmpipe or softpipe and used on screen and off screen builds of VTK. I set
LIBGL_ALWAYS_SOFTWARE to get one of the software drivers or left it unset to
use the nouveau driver on my on screen build. What I got was :
OSMesa-9.1.1 offscreen pass
OSMesa-git softpipe pass
OSMesa-git llvmpipe fail
Mesa-9.1.1 softpipe pass
Mesa-9.1.1 nouveau pass
Mesa-9.1.1 llvmpipe fail
Mesa-git softpipe pass
Mesa-git nouveau pass
Mesa-git llvmpipe fail
which says that llvmpipe is the issue.
I did a bunch of apitraces and put them here :
<a href="http://crab-lab.zool.ohiou.edu/kevin/vtk_apitraces.tar.bz2">http://crab-lab.zool.ohiou.edu/kevin/vtk_apitraces.tar.bz2</a></pre>
</div>
</p>
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