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radv: Respect alignment requirements in descriptor set layouts

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Previously, ycbcr samplers were tightly packed with 4-byte alignment,
but the structure requires 8-byte alignment. These samplers are now padded
to 8-byte boundaries instead.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6728>
This commit is contained in:
Tony Wasserka
2020-09-11 17:50:00 +02:00
committed by Marge Bot
parent 3b55913f33
commit d38094bb33
1 changed files with 8 additions and 2 deletions
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10
src/amd/vulkan/radv_descriptor_set.c
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@@ -107,7 +107,10 @@ VkResult radv_CreateDescriptorSetLayout(
offsetof(struct radv_descriptor_set_layout, binding[num_bindings]);
size_t size = samplers_offset + immutable_sampler_count * 4 * sizeof(uint32_t);
if (ycbcr_sampler_count > 0) {
size += ycbcr_sampler_count * sizeof(struct radv_sampler_ycbcr_conversion) + num_bindings * sizeof(uint32_t);
/* Store block of offsets first, followed by the conversion descriptors (padded to the struct alignment) */
size += num_bindings * sizeof(uint32_t);
size = ALIGN(size, alignof(struct radv_sampler_ycbcr_conversion));
size += ycbcr_sampler_count * sizeof(struct radv_sampler_ycbcr_conversion);
}
set_layout = vk_zalloc2(&device->vk.alloc, pAllocator, size, 8,
@@ -129,7 +132,10 @@ VkResult radv_CreateDescriptorSetLayout(
if (ycbcr_sampler_count > 0) {
ycbcr_sampler_offsets = samplers + 4 * immutable_sampler_count;
set_layout->ycbcr_sampler_offsets_offset = (char*)ycbcr_sampler_offsets - (char*)set_layout;
ycbcr_samplers = (struct radv_sampler_ycbcr_conversion *)(ycbcr_sampler_offsets + num_bindings);
uintptr_t first_ycbcr_sampler_offset = (uintptr_t)ycbcr_sampler_offsets + sizeof(uint32_t) * num_bindings;
first_ycbcr_sampler_offset = ALIGN(first_ycbcr_sampler_offset, alignof(struct radv_sampler_ycbcr_conversion));
ycbcr_samplers = (struct radv_sampler_ycbcr_conversion *)first_ycbcr_sampler_offset;
} else
set_layout->ycbcr_sampler_offsets_offset = 0;