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anv: Only parse pImmutableSamplers if the descriptor has samplers

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Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Jason Ekstrand 2019-01-19 09:40:12 -06:00
parent f0ba826054
commit c7f4a2867c
1 changed files with 31 additions and 12 deletions
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43
src/intel/vulkan/anv_descriptor_set.c
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@ -94,7 +94,22 @@ VkResult anv_CreateDescriptorSetLayout(
uint32_t immutable_sampler_count = 0;
for (uint32_t j = 0; j < pCreateInfo->bindingCount; j++) {
max_binding = MAX2(max_binding, pCreateInfo->pBindings[j].binding);
if (pCreateInfo->pBindings[j].pImmutableSamplers)
/* From the Vulkan 1.1.97 spec for VkDescriptorSetLayoutBinding:
*
* "If descriptorType specifies a VK_DESCRIPTOR_TYPE_SAMPLER or
* VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER type descriptor, then
* pImmutableSamplers can be used to initialize a set of immutable
* samplers. [...] If descriptorType is not one of these descriptor
* types, then pImmutableSamplers is ignored.
*
* We need to be careful here and only parse pImmutableSamplers if we
* have one of the right descriptor types.
*/
VkDescriptorType desc_type = pCreateInfo->pBindings[j].descriptorType;
if ((desc_type == VK_DESCRIPTOR_TYPE_SAMPLER ||
desc_type == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER) &&
pCreateInfo->pBindings[j].pImmutableSamplers)
immutable_sampler_count += pCreateInfo->pBindings[j].descriptorCount;
}
@ -153,6 +168,12 @@ VkResult anv_CreateDescriptorSetLayout(
if (binding == NULL)
continue;
/* We temporarily stashed the pointer to the binding in the
* immutable_samplers pointer. Now that we've pulled it back out
* again, we reset immutable_samplers to NULL.
*/
set_layout->binding[b].immutable_samplers = NULL;
if (binding->descriptorCount == 0)
continue;
@ -170,6 +191,15 @@ VkResult anv_CreateDescriptorSetLayout(
set_layout->binding[b].stage[s].sampler_index = sampler_count[s];
sampler_count[s] += binding->descriptorCount;
}
if (binding->pImmutableSamplers) {
set_layout->binding[b].immutable_samplers = samplers;
samplers += binding->descriptorCount;
for (uint32_t i = 0; i < binding->descriptorCount; i++)
set_layout->binding[b].immutable_samplers[i] =
anv_sampler_from_handle(binding->pImmutableSamplers[i]);
}
break;
default:
break;
@ -221,17 +251,6 @@ VkResult anv_CreateDescriptorSetLayout(
break;
}
if (binding->pImmutableSamplers) {
set_layout->binding[b].immutable_samplers = samplers;
samplers += binding->descriptorCount;
for (uint32_t i = 0; i < binding->descriptorCount; i++)
set_layout->binding[b].immutable_samplers[i] =
anv_sampler_from_handle(binding->pImmutableSamplers[i]);
} else {
set_layout->binding[b].immutable_samplers = NULL;
}
set_layout->shader_stages |= binding->stageFlags;
}