[Bug 106390] Invalid imageAtomicExchange() writes.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri May 4 10:58:38 UTC 2018


--- Comment #7 from Alexander <frustumo at gmail.com> ---
(In reply to Jason Ekstrand from comment #6)
> (In reply to Alexander from comment #4)
> > It's impossible to substitute imageAtomicExchange() with imageStore().
> > imageStore(uimage2D, ivec2, uvec4) is the only suitable signature
> > for r32ui format. The result of such operation is weird.
> You would have to do imageStore(surface, ..., uvec4(packUnorm4x8(color))).

The result on Intel is a binary red-black image. The result on Nvidia is also
weird and absolutely incorrect.

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