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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Iris fails piglit.spec.ext_transform_feedback.immediate-reuse test"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110404">110404</a>
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<th>Summary</th>
<td>Iris fails piglit.spec.ext_transform_feedback.immediate-reuse test
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/Gallium/Iris
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<th>Assignee</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>andrey.simiklit@gmail.com
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<p>
<div>
<pre>I found that the OpenGL saying:
OpenGL spec:
"5.3.3 Rules
.......
Note: “Updates” via rendering or transform feedback
are treated consistently with updates via GL commands.
Once EndTransformFeedback has been issued, any subsequent
command in the same context that uses the results of the
transform feedback operation will see the results."
i965 makes the several cache invalidations (VF, L3, ...)
in EndTransformFeedback function to make the streamout result visible for
others
but unfortunately Iris doesn't do it.
I will provide a solution for this issue shortly.</pre>
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