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freedreno/a6xx: Fix NV12+UBWC import

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Treat R8_G8B8_420_UNORM and NV12 the same, because dri2 frontend doesn't
understand or care about the difference from the sampler PoV.

Fixes: 1e820ac128 ("freedreno: Rework supported-modifiers handling")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26601>
This commit is contained in:
Rob Clark 2023-12-08 11:30:44 -08:00 • committed by Marge Bot
parent 708d4f59f8
commit 2132f95de0
1 changed files with 7 additions and 0 deletions
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7
src/gallium/drivers/freedreno/a6xx/fd6_resource.cc
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@ -55,6 +55,13 @@ ok_ubwc_format(struct pipe_screen *pscreen, enum pipe_format pfmt)
return info->a6xx.has_z24uint_s8uint;
case PIPE_FORMAT_R8_G8B8_420_UNORM:
/* The difference between NV12 and R8_G8B8_420_UNORM is only where the
* conversion to RGB happens, with the latter it happens _after_ the
* texture samp instruction. But dri2_get_mapping_by_fourcc() doesn't
* know this, so it asks for NV12 when it really meant to ask for
* R8_G8B8_420_UNORM. Just treat them the same here to work around it:
*/
case PIPE_FORMAT_NV12:
return true;
default: