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[dxvk] Optimize image descriptor updates

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Avoids unnecessary atomic operations when rendering to a framebuffer
with a depth attachment.
This commit is contained in:
Philip Rebohle 2018-10-15 16:35:40 +02:00
parent c5532f605a
commit 254cd8bd06
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GPG Key ID: C8CC613427A31C99
1 changed files with 14 additions and 6 deletions
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20
src/dxvk/dxvk_context.cpp
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@ -2536,10 +2536,19 @@ namespace dxvk {
const DxvkPipelineLayout* layout) {
bool updatePipelineState = false;
DxvkAttachment depthAttachment;
// If the depth attachment is also bound as a shader
// resource, we have to use the appropriate layout
VkImage depthImage = VK_NULL_HANDLE;
VkImageLayout depthLayout = VK_IMAGE_LAYOUT_UNDEFINED;
if (bindPoint == VK_PIPELINE_BIND_POINT_GRAPHICS && m_state.om.framebuffer != nullptr)
depthAttachment = m_state.om.framebuffer->getDepthTarget();
if (bindPoint == VK_PIPELINE_BIND_POINT_GRAPHICS && m_state.om.framebuffer != nullptr) {
const auto& depthAttachment = m_state.om.framebuffer->getDepthTarget();
if (depthAttachment.view != nullptr) {
depthImage = depthAttachment.view->imageHandle();
depthLayout = depthAttachment.layout;
}
}
for (uint32_t i = 0; i < layout->bindingCount(); i++) {
const auto& binding = layout->binding(i);
@ -2569,9 +2578,8 @@ namespace dxvk {
m_descInfos[i].image.imageView = res.imageView->handle(binding.view);
m_descInfos[i].image.imageLayout = res.imageView->imageInfo().layout;
if (depthAttachment.view != nullptr
&& depthAttachment.view->image() == res.imageView->image())
m_descInfos[i].image.imageLayout = depthAttachment.layout;
if (res.imageView->imageHandle() == depthImage)
m_descInfos[i].image.imageLayout = depthLayout;
m_cmd->trackResource(res.imageView);
m_cmd->trackResource(res.imageView->image());