[Mesa-dev] [Bug 99214] Crash in library libswrAVX.so when assigning vertex buffer object pointers with elements of type GL_DOUBLE

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99214

--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to chris from comment #1)
> I suspect this is due to dynamic detection of AVX2.

Not at all. GL_DOUBLE is just plain not supported on swr. If AVX2
presence/absence causes changes in behaviour, you have some configuration issue
on your end (e.g. perhaps you're using llvmpipe with one, and swr with the
other).

[Note that GL_DOUBLE is an almost completely pointless feature - the "GPU" will
still convert your doubles to 32-bit floats. If you want to feed actual fp64
values to your vertices, you need GL_ARB_vertex_attrib_fp64 or whatever.]

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