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<body><span class="vcard"><a class="email" href="mailto:siglesias@igalia.com" title="Samuel Iglesias <siglesias@igalia.com>"> <span class="fn">Samuel Iglesias</span></a>
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<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [llvmpipe][softpipe] piglit arb_gpu_shader_fp64-double-gettransformfeedbackvarying regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93878">bug 93878</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Assignee</td>
<td>mesa-dev@lists.freedesktop.org
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<td>siglesias@igalia.com
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>ASSIGNED
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [llvmpipe][softpipe] piglit arb_gpu_shader_fp64-double-gettransformfeedbackvarying regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93878#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [llvmpipe][softpipe] piglit arb_gpu_shader_fp64-double-gettransformfeedbackvarying regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93878">bug 93878</a>
from <span class="vcard"><a class="email" href="mailto:siglesias@igalia.com" title="Samuel Iglesias <siglesias@igalia.com>"> <span class="fn">Samuel Iglesias</span></a>
</span></b>
<pre>According to ARB_gpu_shader_fp64 spec, doubles don't support interpolation:
"This extension does not support interpolation of double-precision
values; doubles used as fragment shader inputs must be qualified as
"flat"."
Mesa was assigning the flat qualifier to the doubles
before 781d278 because there was no consumer stage (these programs only
have a vertex shader attached to it) but not because there were doubles. I am
going to write a patch to make explicit the double's case to fix these
regressions.</pre>
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