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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Add FP64 support to the i965 shader backends"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92760#c74">Comment # 74</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Add FP64 support to the i965 shader backends"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92760">bug 92760</a>
from <span class="vcard"><a class="email" href="mailto:itoral@igalia.com" title="Iago Toral <itoral@igalia.com>"> <span class="fn">Iago Toral</span></a>
</span></b>
<pre>(In reply to Grazvydas Ignotas from <a href="show_bug.cgi?id=92760#c71">comment #71</a>)
<span class="quote">> Out of the interest I've tried the <a href="https://github.com/Igalia">https://github.com/Igalia</a> i965-attrib64
> branch and it breaks font rendering on my Skylake machine (xfce desktop,
> DRI3, X.Org 1.18.1). I could try bisecting if that helps, just thought it
> might be something known or expected.</span >
Thanks for reporting this! that branch is not the one we are working with
though, that is for the development of GL_vertex_attrib_64bit which is still in
an early stage and it is done on top of i965-fp64, which is the one that has
the fp64 implementation for gen8+. It would be interesting if you could try
with i965-fp64 to see if your problems are strictly related to the fp64
implementation or vertex attrib 64. We are aware of a number of problems in the
fp64 implementation that we have been discussing here, but I don't think any of
them should lead to the issues you report so if you can see that problem with
the i965-fp64 branch alone it might be something else that we need to look
into.</pre>
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