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<body><span class="vcard"><a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> <span class="fn">Kenneth Graunke</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [IVB, BYT] Cube/3D sampling broken for INT/UINT formats"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94668">bug 94668</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>ASSIGNED
</td>
<td>RESOLVED
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [IVB, BYT] Cube/3D sampling broken for INT/UINT formats"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94668#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [IVB, BYT] Cube/3D sampling broken for INT/UINT formats"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94668">bug 94668</a>
from <span class="vcard"><a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> <span class="fn">Kenneth Graunke</span></a>
</span></b>
<pre>This is "fixed" by:
commit d4a5a61d445e683c20de00c1febe847b4c2db910
Author: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>>
Date: Mon Mar 28 20:07:13 2016 -0700
i965: Don't use CUBE wrap modes for integer formats on IVB/BYT.
There is no linear filtering for integer formats, so we should always
be using CLAMP_TO_EDGE mode.
Fixes 46 dEQP cases on Ivybridge (which were likely broken by commit
0faf26e6a0a34c3544644852802484f2404cc83e).
This workaround doesn't appear to be necessary on any other hardware;
I haven't found any documentation mentioning errata in this area.
v2: Only apply on Ivybridge/Baytrail to avoid regressing GLES3.1 tests.
Signed-off-by: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>>
Reviewed-by: Jason Ekstrand <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>> [v1]
This leaves gather4 on cubes doing the wrong thing at edges (see <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - dEQP-GLES31.functional.texture.gather.basic.cube.* fails"
href="show_bug.cgi?id=94621">bug 94621</a>),
but there are no tests for that until ES 3.1 is enabled. So I'm punting on the
problem for now. There's no real good solution for it, but there are some
hacks that could be done to alleviate the problem in many cases.</pre>
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