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radv: Don't advertise any features for R10X6G10X6B10X6A10X6_UNORM_4PACK16

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The recent addition of PIPE_FORMAT_X6R10X6G10X6B10X6A10_UNORM caused
vk_format_to_pipe_format() to map VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16
to a real pipe format, which made radv_physical_device_get_format_properties()
advertise BLIT_SRC/SAMPLED_IMAGE for it. The hardware samples the data as plain
R16G16B16A16 UNORM, which doesn't match the 10-bit UNORM semantics the spec
(and CTS) require, so dEQP-VK.api.copy_and_blit.core.blit_image.* tests with
r10x6g10x6b10x6a10x6_unorm_4pack16 as the source started failing on gfx1201.

Override the mapping to PIPE_FORMAT_NONE so RADV reports zero format features,
matching the behavior prior to the new pipe format being added. Proper support
can be restored once VK_EXT_rgba10x6_formats is implemented.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40653>
This commit is contained in:
Christian Gmeiner 2026-04-15 10:28:45 +02:00 • committed by Marge Bot
parent dc0d6100f9
commit 81b8113a9f
1 changed files with 2 additions and 0 deletions
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2
src/amd/vulkan/radv_formats.h
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@ -29,6 +29,8 @@ radv_format_to_pipe_format(VkFormat vkformat)
case VK_FORMAT_R10X6G10X6_UNORM_2PACK16:
case VK_FORMAT_R12X4G12X4_UNORM_2PACK16:
return PIPE_FORMAT_R16G16_UNORM;
case VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16:
return PIPE_FORMAT_NONE;
default:
return vk_format_to_pipe_format(vkformat);
}