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freedreno/a6xx: set chroma offsets to MIDPOINT

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Vulkan has VkChromaLocation and all drivers suggest
VK_CHROMA_LOCATION_MIDPOINT on Android.  The blob also uses MIDPOINT.
Based on my limited tests, the image quality is higher with MIDPOINT.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19514>
This commit is contained in:
Chia-I Wu 2022-11-03 15:43:43 -07:00 • committed by Marge Bot
parent cbf68450f8
commit 10b0a5dc34
1 changed files with 6 additions and 0 deletions
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6
src/gallium/drivers/freedreno/a6xx/fd6_texture.c
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@ -429,6 +429,12 @@ fd6_sampler_view_update(struct fd_context *ctx,
.chroma_offsets = {FDL_CHROMA_LOCATION_COSITED_EVEN,
FDL_CHROMA_LOCATION_COSITED_EVEN},
};
if (rsc->b.b.format == PIPE_FORMAT_R8_G8B8_420_UNORM) {
args.chroma_offsets[0] = FDL_CHROMA_LOCATION_MIDPOINT;
args.chroma_offsets[1] = FDL_CHROMA_LOCATION_MIDPOINT;
}
struct fd_resource *plane1 = fd_resource(rsc->b.b.next);
struct fd_resource *plane2 =
plane1 ? fd_resource(plane1->b.b.next) : NULL;