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gallium + mesa/st: Add PIPE_CAP_NIR_ATOMICS_AS_DEREF and use it

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This cap is useful for drivers that support hardware atomics and need
special handling to resolve their addresses.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6025>
This commit is contained in:
Gert Wollny
2020-06-27 22:40:56 +02:00
committed by Gert Wollny
parent dd003abd2f
commit a03e24aa7f
4 changed files with 8 additions and 2 deletions
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docs/gallium/screen.rst
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@@ -589,6 +589,7 @@ The integer capabilities:
* ``PIPE_CAP_MAP_UNSYNCHRONIZED_THREAD_SAFE``: Whether mapping a buffer as unsynchronized from any thread is safe.
* ``PIPE_CAP_GLSL_ZERO_INIT``: Choose a default zero initialization some glsl variables. If `1`, then all glsl shader variables and gl_FragColor are initialized to zero. If `2`, then shader out variables are not initialized but function out variables are.
* ``PIPE_CAP_BLEND_EQUATION_ADVANCED``: Driver supports blend equation advanced without necessarily supporting FBFETCH.
* ``PIPE_CAP_NIR_ATOMICS_AS_DEREF``: Whether NIR atomics instructions should reference atomics as NIR derefs instead of by indices.
.. _pipe_capf: