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dzn: Implement GetDescriptorSetLayoutSupport()

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The 2048 descriptors limit comes from the maximum number of samplers
per heap, but the limit for other descriptors is actually much bigger.
Let's implement GetDescriptorSetLayoutSupport() to reflect that.

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16926>
This commit is contained in:
Boris Brezillon 2022-04-19 11:43:22 +02:00 • committed by Marge Bot
parent 1554ece8bd
commit 59a6ddd85c
1 changed files with 25 additions and 0 deletions
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25
src/microsoft/vulkan/dzn_descriptor_set.c
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@ -462,6 +462,31 @@ dzn_DestroyDescriptorSetLayout(VkDevice device,
pAllocator);
}
VKAPI_ATTR void VKAPI_CALL
dzn_GetDescriptorSetLayoutSupport(VkDevice device,
const VkDescriptorSetLayoutCreateInfo *pCreateInfo,
VkDescriptorSetLayoutSupport *pSupport)
{
const VkDescriptorSetLayoutBinding *bindings = pCreateInfo->pBindings;
uint32_t sampler_count = 0, other_desc_count = 0;
for (uint32_t i = 0; i < pCreateInfo->bindingCount; i++) {
VkDescriptorType desc_type = bindings[i].descriptorType;
bool has_sampler = dzn_desc_type_has_sampler(desc_type);
if (has_sampler)
sampler_count += bindings[i].descriptorCount;
if (desc_type != VK_DESCRIPTOR_TYPE_SAMPLER)
other_desc_count += bindings[i].descriptorCount;
if (dzn_descriptor_type_depends_on_shader_usage(desc_type))
other_desc_count += bindings[i].descriptorCount;
}
pSupport->supported =
sampler_count <= (MAX_DESCS_PER_SAMPLER_HEAP / MAX_SETS) &&
other_desc_count <= (MAX_DESCS_PER_CBV_SRV_UAV_HEAP / MAX_SETS);
}
static void
dzn_pipeline_layout_destroy(struct dzn_pipeline_layout *layout)
{