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st/mesa: Update constants on alpha test change if it's lowered

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nir_lower_alpha_test creates a uniform for the alpha reference value;
this needs to be updated when changing alpha test state.

Fixes: b1c4c4c7f5 ("mesa/gallium: automatically lower alpha-testing")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/4390
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9439>
(cherry picked from commit efd7711e0e)
This commit is contained in:
Icecream95 2021-03-06 10:45:44 +13:00 • committed by Dylan Baker
parent 5ad7edf8af
commit 3342edc1d2
2 changed files with 2 additions and 2 deletions
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2
.pick_status.json
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@ -1705,7 +1705,7 @@
"description": "st/mesa: Update constants on alpha test change if it's lowered",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"master_sha": null,
"because_sha": "b1c4c4c7f53cde52a8f3b3ec17cd66b89bf04199"
},

2
src/mesa/state_tracker/st_context.c
View file

@ -510,7 +510,7 @@ st_init_driver_flags(struct st_context *st)
f->NewScissorTest = ST_NEW_SCISSOR | ST_NEW_RASTERIZER;
if (st->lower_alpha_test)
f->NewAlphaTest = ST_NEW_FS_STATE;
f->NewAlphaTest = ST_NEW_FS_STATE | ST_NEW_FS_CONSTANTS;
else
f->NewAlphaTest = ST_NEW_DSA;