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vulkan: implement graphics readback

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niki
2022-08-30 17:11:59 +02:00
parent a69d4a38dd
commit ec5a3a50f9
7 changed files with 287 additions and 57 deletions
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src/modules/graphics/vulkan/Buffer.cpp
+7 -2
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@@ -38,7 +38,12 @@ bool Buffer::loadVolatile() {
VkBufferCreateInfo bufferInfo{};
bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.size = getSize();
bufferInfo.usage = getVulkanUsageFlags(usageFlags);
if (dataUsage == BUFFERDATAUSAGE_READBACK) {
bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT;
}
else {
bufferInfo.usage = getVulkanUsageFlags(usageFlags);
}
VmaAllocationCreateInfo allocCreateInfo = {};
allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO;
@@ -88,7 +93,7 @@ void Buffer::unmap(size_t usedoffset, size_t usedsize) {
void Buffer::copyTo(love::graphics::Buffer* dest, size_t sourceoffset, size_t destoffset, size_t size) {
Graphics* vgfx = (Graphics*)gfx;
auto commandBuffer = vgfx->getDataTransferCommandBuffer();
auto commandBuffer = vgfx->getReadbackCommandBuffer();
VkBufferCopy bufferCopy{};
bufferCopy.srcOffset = sourceoffset;