[Bug 97305] Gallium: TBOs and images set the offset in elements, not bytes

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Aug 29 17:42:22 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=97305

Matias N. Goldberg <dark_sylinc at yahoo.com.ar> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|REOPENED                    |RESOLVED

--- Comment #18 from Matias N. Goldberg <dark_sylinc at yahoo.com.ar> ---
You're awesome!

I can confirm it works on both the sample repro I provided and my actual real
case.

Small note: We discovered there was a potential for a crash because at certain
points we assume SIMD alignment; so we're now enforcing 16-byte alignment as
minimum in our code. I'm doing this remark because Mesa is the only (or among
the very few) implementations that return alignments <16; which can reveal
hidden bugs in program code that runs fine everywhere else. If you ever see a
bug report of these sorts (e.g. crashing in movaps, movntdqa), this is
something to keep in mind.

I appreciate the 4 byte alignment as 256 reported by others is excessively
wasteful. Thanks.

For the record it was fixed in
https://cgit.freedesktop.org/mesa/mesa/commit/?id=7cd256ce7e4bad680bb77d033cf5dd662abab2dd
and
https://cgit.freedesktop.org/mesa/mesa/commit/?id=325379096f54dde39171d1b8804e29a8003bb3c7

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