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Properly use VK_KHR_dedicated_allocation to make some drivers extra happy

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Henrik Rydgard authored and Henrik Rydgård committed 2019-02-05 18:07:18 +01:00
1 parent 8e1a5ef3d6
commit 32f37723f9
2 files changed
+79 -17
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Common/Vulkan/VulkanImage.cpp
+26 -2
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@@ -72,9 +72,27 @@ bool VulkanTexture::CreateDirect(VkCommandBuffer cmd, int w, int h, int numMips,
}
VkMemoryRequirements mem_reqs{};
vkGetImageMemoryRequirements(vulkan_->GetDevice(), image_, &mem_reqs);
if (allocator_) {
bool dedicatedAllocation = false;
if (vulkan_->DeviceExtensions().KHR_dedicated_allocation) {
VkImageMemoryRequirementsInfo2KHR memReqInfo2{VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2_KHR};
memReqInfo2.image = image_;
VkMemoryRequirements2KHR memReq2 = {VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR};
VkMemoryDedicatedRequirementsKHR memDedicatedReq{VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR};
memReq2.pNext = &memDedicatedReq;
vkGetImageMemoryRequirements2KHR(vulkan_->GetDevice(), &memReqInfo2, &memReq2);
mem_reqs = memReq2.memoryRequirements;
dedicatedAllocation =
(memDedicatedReq.requiresDedicatedAllocation != VK_FALSE) ||
(memDedicatedReq.prefersDedicatedAllocation != VK_FALSE);
} else {
vkGetImageMemoryRequirements(vulkan_->GetDevice(), image_, &mem_reqs);
}
if (allocator_ && !dedicatedAllocation) {
offset_ = allocator_->Allocate(mem_reqs, &mem_, Tag());
if (offset_ == VulkanDeviceAllocator::ALLOCATE_FAILED) {
ELOG("Image memory allocation failed (mem_reqs.size=%d, typebits=%08x", (int)mem_reqs.size, (int)mem_reqs.memoryTypeBits);
@@ -86,6 +104,12 @@ bool VulkanTexture::CreateDirect(VkCommandBuffer cmd, int w, int h, int numMips,
mem_alloc.memoryTypeIndex = 0;
mem_alloc.allocationSize = mem_reqs.size;
VkMemoryDedicatedAllocateInfoKHR dedicatedAllocateInfo{VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO_KHR};
if (dedicatedAllocation) {
dedicatedAllocateInfo.image = image_;
mem_alloc.pNext = &dedicatedAllocateInfo;
}
// Find memory type - don't specify any mapping requirements
bool pass = vulkan_->MemoryTypeFromProperties(mem_reqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &mem_alloc.memoryTypeIndex);
_assert_(pass);