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radv: Support allocating variable size descriptor sets. 

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Bas Nieuwenhuizen 2018-04-10 01:06:47 +02:00
parent 78c54acbe8
commit b5e04e9217
1 changed files with 17 additions and 4 deletions
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21
src/amd/vulkan/radv_descriptor_set.c
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@ -392,6 +392,7 @@ static VkResult
radv_descriptor_set_create(struct radv_device *device,
struct radv_descriptor_pool *pool,
const struct radv_descriptor_set_layout *layout,
const uint32_t *variable_count,
struct radv_descriptor_set **out_set)
{
struct radv_descriptor_set *set;
@ -420,9 +421,9 @@ radv_descriptor_set_create(struct radv_device *device,
}
set->layout = layout;
if (layout->size) {
uint32_t layout_size = align_u32(layout->size, 32);
set->size = layout->size;
uint32_t layout_size = align_u32(layout->size, 32);
if (layout_size) {
set->size = layout_size;
if (!pool->host_memory_base && pool->entry_count == pool->max_entry_count) {
vk_free2(&device->alloc, NULL, set);
@ -648,14 +649,26 @@ VkResult radv_AllocateDescriptorSets(
uint32_t i;
struct radv_descriptor_set *set = NULL;
const VkDescriptorSetVariableDescriptorCountAllocateInfoEXT *variable_counts =
vk_find_struct_const(pAllocateInfo->pNext, DESCRIPTOR_SET_VARIABLE_DESCRIPTOR_COUNT_ALLOCATE_INFO_EXT);
const uint32_t zero = 0;
/* allocate a set of buffers for each shader to contain descriptors */
for (i = 0; i < pAllocateInfo->descriptorSetCount; i++) {
RADV_FROM_HANDLE(radv_descriptor_set_layout, layout,
pAllocateInfo->pSetLayouts[i]);
const uint32_t *variable_count = NULL;
if (variable_counts) {
if (i < variable_counts->descriptorSetCount)
variable_count = variable_counts->pDescriptorCounts + i;
else
variable_count = &zero;
}
assert(!(layout->flags & VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT_KHR));
result = radv_descriptor_set_create(device, pool, layout, &set);
result = radv_descriptor_set_create(device, pool, layout, variable_count, &set);
if (result != VK_SUCCESS)
break;