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[dxvk] Implement sparse image creation in allocator

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Philip Rebohle 2024-09-25 22:36:40 +02:00 committed by Philip Rebohle
parent bcd12a5b56
commit eec4f0fb35
1 changed files with 50 additions and 25 deletions
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29
src/dxvk/dxvk_memory.cpp
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@ -828,10 +828,11 @@ namespace dxvk {
dedicatedRequirements.prefersDedicatedAllocation = VK_TRUE;
}
// If a dedicated allocation is at least preferred for this resource, try this first
Rc<DxvkResourceAllocation> allocation;
if (dedicatedRequirements.prefersDedicatedAllocation) {
if (!(createInfo.flags & VK_IMAGE_CREATE_SPARSE_BINDING_BIT)) {
// If a dedicated allocation is at least preferred for this resource, try this first
if (!allocation && dedicatedRequirements.prefersDedicatedAllocation) {
VkMemoryDedicatedAllocateInfo dedicatedInfo = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO, next };
dedicatedInfo.image = image;
@ -862,6 +863,30 @@ namespace dxvk {
properties & ~VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
}
}
} else {
// Create a sparse page table and determine whether we need to allocate
// actual memory for the metadata aspect of the image or not.
auto pageTable = std::make_unique<DxvkSparsePageTable>(m_device, createInfo, image);
auto pageProperties = pageTable->getProperties();
if (pageProperties.metadataPageCount) {
VkMemoryRequirements metadataRequirements = { };
metadataRequirements.size = SparseMemoryPageSize * pageProperties.metadataPageCount;
metadataRequirements.alignment = SparseMemoryPageSize;
metadataRequirements.memoryTypeBits = requirements.memoryRequirements.memoryTypeBits;
allocation = allocateMemory(metadataRequirements, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
if (!allocation)
allocation = allocateMemory(metadataRequirements, 0u);
if (allocation)
allocation->m_sparsePageTable = pageTable.release();
} else {
// Just need a page table, but no memory
allocation = createAllocation(pageTable.release());
}
}
if (!allocation) {
vk->vkDestroyImage(vk->device(), image, nullptr);