Alyssa Rosenzweig db2bdc1dc3 pan/bi: Require ATEST coverage mask input in R60
In theory, ATEST can take any combination of registers for inputs.
Experimentally, however, ATEST requires the coverage mask in R60. This avoids
regressing the following dEQP tests, which write their coverage mask with
pixel-frequency-shading but without writing to the depth/stencil buffer.

dEQP-GLES31.functional.shaders.sample_variables.sample_mask.discard_half_per_pixel.*

This issue is known to affect both Mali-G52 (v7) and Mali-G57 (v9). I am unsure
if this is a silicon bug or just an obscure implementation detail.

No shader-db changes.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17428>
2022-07-13 21:05:35 +00:00
2022-01-19 15:17:17 +00:00
2022-07-11 15:03:53 +01:00
2022-06-28 14:02:14 +00:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================


Source
------

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---------------

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.. code-block:: sh

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