preserve-emulation/ppsspp
1
0 Fork 0
mirror of https://github.com/hrydgard/ppsspp.git synced 2026-10-26 19:58:36 +01:00
Code Issues Packages Projects Releases Wiki Activity

Vulkan readback: Resize the readback buffer dynamically as necessary.

Browse Source
This commit is contained in:
Henrik Rydgård committed 2017-11-12 09:54:30 +01:00
1 parent 98191f0f29
commit afa5b23abb
2 files changed
+25 -8
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

ext/native/thin3d/VulkanQueueRunner.cpp
+20 -6
View File
@@ -6,17 +6,29 @@
// TODO: This is only enough for 4x render resolution / 4x texture upscale for debugger.
// Maybe we should use a dynamically allocated one for larger?
const uint32_t readbackBufferSize = 2048 * 2048 * 4;
void VulkanQueueRunner::CreateDeviceObjects() {
ILOG("VulkanQueueRunner::CreateDeviceObjects");
InitBackbufferRenderPass();
InitRenderpasses();
}
void VulkanQueueRunner::ResizeReadbackBuffer(VkDeviceSize requiredSize) {
if (readbackBuffer_ && requiredSize <= readbackBufferSize_) {
return;
}
if (readbackMemory_) {
vulkan_->Delete().QueueDeleteDeviceMemory(readbackMemory_);
}
if (readbackBuffer_) {
vulkan_->Delete().QueueDeleteBuffer(readbackBuffer_);
}
readbackBufferSize_ = requiredSize;
VkDevice device = vulkan_->GetDevice();
VkBufferCreateInfo buf{ VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
buf.size = readbackBufferSize;
buf.size = readbackBufferSize_;
buf.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT;
vkCreateBuffer(device, &buf, nullptr, &readbackBuffer_);
@@ -40,10 +52,8 @@ void VulkanQueueRunner::DestroyDeviceObjects() {
ILOG("VulkanQueueRunner::DestroyDeviceObjects");
VkDevice device = vulkan_->GetDevice();
vulkan_->Delete().QueueDeleteDeviceMemory(readbackMemory_);
vkFreeMemory(device, readbackMemory_, nullptr);
readbackMemory_ = VK_NULL_HANDLE;
vulkan_->Delete().QueueDeleteBuffer(readbackBuffer_);
readbackBuffer_ = VK_NULL_HANDLE;
readbackBufferSize_ = 0;
for (int i = 0; i < ARRAY_SIZE(renderPasses_); i++) {
assert(renderPasses_[i] != VK_NULL_HANDLE);
@@ -845,6 +855,8 @@ void VulkanQueueRunner::PerformReadback(const VKRStep &step, VkCommandBuffer cmd
vkCmdPipelineBarrier(cmd, stage, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
}
ResizeReadbackBuffer(sizeof(uint32_t) * step.readback.srcRect.extent.width * step.readback.srcRect.extent.height);
VkBufferImageCopy region{};
region.imageOffset = { step.readback.srcRect.offset.x, step.readback.srcRect.offset.y, 0 };
region.imageExtent = { step.readback.srcRect.extent.width, step.readback.srcRect.extent.height, 1 };
@@ -869,6 +881,8 @@ void VulkanQueueRunner::PerformReadbackImage(const VKRStep &step, VkCommandBuffe
SetupTransitionToTransferSrc(srcImage, barrier, stage, VK_IMAGE_ASPECT_COLOR_BIT);
vkCmdPipelineBarrier(cmd, stage, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
ResizeReadbackBuffer(sizeof(uint32_t) * step.readback_image.srcRect.extent.width * step.readback_image.srcRect.extent.height);
VkBufferImageCopy region{};
region.imageOffset = { step.readback_image.srcRect.offset.x, step.readback_image.srcRect.offset.y, 0 };
region.imageExtent = { step.readback_image.srcRect.extent.width, step.readback_image.srcRect.extent.height, 1 };