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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 fcc-read-after-clear copy rb regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78842">78842</a>
</td>
</tr>
<tr>
<th>Keywords</th>
<td>regression
</td>
</tr>
<tr>
<th>CC</th>
<td>chrisf@ijw.co.nz, eric@anholt.net, kenneth@whitecape.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[swrast] piglit fcc-read-after-clear copy rb 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>
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<pre>mesa: 5646319f25c7880b3706bb7590e24c84fd8de0fc (master 10.3.0-devel)
$ ./bin/fcc-read-after-clear copy rb -auto
Probe color at (0,0)
Expected: 0.000000 1.000000 0.000000 1.000000
Observed: 0.000000 0.000000 0.000000 0.000000
PIGLIT: {'result': 'fail' }
bd44ac8b5ca08016bb064b37edaec95eccfdbcd5 is the first bad commit
commit bd44ac8b5ca08016bb064b37edaec95eccfdbcd5
Author: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>>
Date: Sun May 11 17:20:08 2014 -0700
i965: Don't _swrast_BlitFramebuffer when doing CopyTexSubImage.
The point of copytexsubimage_using_blit_framebuffer is to use a hardware
accelerated BlitFramebuffer path. If that fails, we shouldn't do a
swrast blit---we should try our CTSI fallback code.
This is especially important for i965 and GLES, where we don't even
create a swrast context.
Bugzilla: <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [SNB/IVB/HSW/BYT/BDW Bisected]Ogles3conform GL3Tests/packed_pixels/packed_pixels_pixelstore.test segfault"
href="show_bug.cgi?id=77705">https://bugs.freedesktop.org/show_bug.cgi?id=77705</a>
Signed-off-by: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>>
Reviewed-by: Eric Anholt <<a href="mailto:eric@anholt.net">eric@anholt.net</a>>
Reviewed-by: Chris Forbes <<a href="mailto:chrisf@ijw.co.nz">chrisf@ijw.co.nz</a>>
Cc: "10.2" <<a href="mailto:mesa-stable@lists.freedesktop.org">mesa-stable@lists.freedesktop.org</a>>
:040000 040000 313ba4b4dcbf69457b565f9ce2988355431d461f
128c89746f13726404560571fe5d8a7a69df1d0b M src
bisect run success</pre>
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