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[dxvk] Do not transition non-shared images at the end of the command buffer

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Currently, if the frontend flushes the command list, we always transition
render targets to their default layout. This may lead to some arbitrary
GPU performance issues if the transitions are not free.

Instead, keep all images that are only used internally in their attachment
layout across command list boundaries, until they are unbound.
This commit is contained in:
Philip Rebohle 2021-02-14 03:32:11 +01:00 committed by Philip Rebohle
parent bce80b523f
commit 2b401725dc
2 changed files with 17 additions and 8 deletions
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22
src/dxvk/dxvk_context.cpp
View File

@ -65,8 +65,12 @@ namespace dxvk {
Rc<DxvkCommandList> DxvkContext::endRecording() {
this->spillRenderPass(false);
this->spillRenderPass(true);
// Ensure that any shared images are in their
// default layout for the next submission
this->transitionRenderTargetLayouts(m_execBarriers, true);
m_sdmaBarriers.recordCommands(m_cmd);
m_initBarriers.recordCommands(m_cmd);
m_execBarriers.recordCommands(m_cmd);
@ -3456,7 +3460,7 @@ namespace dxvk {
if (suspend)
m_flags.set(DxvkContextFlag::GpRenderPassSuspended);
else
this->transitionRenderTargetLayouts(m_gfxBarriers);
this->transitionRenderTargetLayouts(m_gfxBarriers, false);
m_gfxBarriers.recordCommands(m_cmd);
@ -3467,7 +3471,7 @@ namespace dxvk {
// We may end a previously suspended render pass
if (m_flags.test(DxvkContextFlag::GpRenderPassSuspended)) {
m_flags.clr(DxvkContextFlag::GpRenderPassSuspended);
this->transitionRenderTargetLayouts(m_gfxBarriers);
this->transitionRenderTargetLayouts(m_gfxBarriers, false);
m_gfxBarriers.recordCommands(m_cmd);
}
@ -4044,11 +4048,15 @@ namespace dxvk {
void DxvkContext::transitionRenderTargetLayouts(
DxvkBarrierSet& barriers) {
DxvkBarrierSet& barriers,
bool sharedOnly) {
if (m_state.om.framebuffer == nullptr)
return;
for (uint32_t i = 0; i < MaxNumRenderTargets; i++) {
const DxvkAttachment& color = m_state.om.framebuffer->getColorTarget(i);
if (color.view != nullptr) {
if (color.view != nullptr && (!sharedOnly || color.view->imageInfo().shared)) {
this->transitionColorAttachment(barriers, color, m_rtLayouts.color[i]);
m_rtLayouts.color[i] = color.view->imageInfo().layout;
}
@ -4056,7 +4064,7 @@ namespace dxvk {
const DxvkAttachment& depth = m_state.om.framebuffer->getDepthTarget();
if (depth.view != nullptr) {
if (depth.view != nullptr && (!sharedOnly || depth.view->imageInfo().shared)) {
this->transitionDepthAttachment(barriers, depth, m_rtLayouts.depth);
m_rtLayouts.depth = depth.view->imageInfo().layout;
}

3
src/dxvk/dxvk_context.h
View File

@ -1146,7 +1146,8 @@ namespace dxvk {
void applyRenderTargetStoreLayouts();
void transitionRenderTargetLayouts(
DxvkBarrierSet& barriers);
DxvkBarrierSet& barriers,
bool sharedOnly);
void transitionColorAttachment(
DxvkBarrierSet& barriers,