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Flush/invalidate host and device memory writes

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This commit is contained in:
saschawillems 2017-09-15 20:41:43 +02:00
parent 282eccd54c
commit 66a87bbf21
1 changed files with 7 additions and 2 deletions
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9
computeheadless/computeheadless.cpp
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@ -210,11 +210,14 @@ public:
computeInput.data());
// Flush writes to host visible buffer
void* mapped;
vkMapMemory(device, hostMemory, 0, VK_WHOLE_SIZE, 0, &mapped);
VkMappedMemoryRange mappedRange = vks::initializers::mappedMemoryRange();
mappedRange.memory = hostMemory;
mappedRange.offset = 0;
mappedRange.size = VK_WHOLE_SIZE;
vkFlushMappedMemoryRanges(device, 1, &mappedRange);
vkUnmapMemory(device, hostMemory);
createBuffer(
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
@ -381,12 +384,14 @@ public:
// Wait for fence
vkWaitForFences(device, 1, &fence, VK_TRUE, UINT64_MAX);
// Flush writes to host visible buffer
// Make device writes visible to the host
void *mapped;
vkMapMemory(device, hostMemory, 0, VK_WHOLE_SIZE, 0, &mapped);
VkMappedMemoryRange mappedRange = vks::initializers::mappedMemoryRange();
mappedRange.memory = hostMemory;
mappedRange.offset = 0;
mappedRange.size = VK_WHOLE_SIZE;
vkFlushMappedMemoryRanges(device, 1, &mappedRange);
vkInvalidateMappedMemoryRanges(device, 1, &mappedRange);
void* mapped;
vkMapMemory(device, hostMemory, 0, VK_WHOLE_SIZE, 0, &mapped);