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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - glBlitFramebuffer refuses to blit RGBA to RGB with MSAA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92706">92706</a>
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<th>Summary</th>
<td>glBlitFramebuffer refuses to blit RGBA to RGB with MSAA
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
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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
</td>
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<th>Component</th>
<td>Mesa core
</td>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>timon37@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=119247" name="attach_119247" title="patch to allow RGBA->RGB multi-sampled resolves">attachment 119247</a> <a href="attachment.cgi?id=119247&action=edit" title="patch to allow RGBA->RGB multi-sampled resolves">[details]</a></span>
patch to allow RGBA->RGB multi-sampled resolves
When doing a glBlitFramebuffer from an RGBA multisampled texture to a regular
RGB texture mesa gives GL_INVALID_OPERATION "(bad src/dst multisample pixel
formats)".
With the attached patch the operation works fine on a Radeon HD6850 and Intel
Core i7-4770R, which hints that the drivers already support it.
This issue breaks MSAA in "X Rebirth", both nvidia and amd proprietary drivers
support this kind of resolve. We have a clean error log (using debug_output) so
afaik we're doing everything correctly.</pre>
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