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[d3d11] Sync frame latency after presentation

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Joshua Ashton 2021-06-01 17:03:12 +01:00 committed by Philip Rebohle
parent 0fe8f2e40c
commit f98a45b305
2 changed files with 11 additions and 10 deletions
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19
src/d3d11/d3d11_swapchain.cpp
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@ -178,9 +178,8 @@ namespace dxvk {
return DXGI_ERROR_INVALID_CALL; return DXGI_ERROR_INVALID_CALL;
m_frameLatency = MaxLatency; m_frameLatency = MaxLatency;
m_frameLatencySignal->wait(m_frameId - GetActualFrameLatency());
SignalFrameLatencyEvent(); SyncFrameLatency();
return S_OK; return S_OK;
} }
@ -241,10 +240,6 @@ namespace dxvk {
// Flush pending rendering commands before // Flush pending rendering commands before
auto immediateContext = static_cast<D3D11ImmediateContext*>(deviceContext.ptr()); auto immediateContext = static_cast<D3D11ImmediateContext*>(deviceContext.ptr());
immediateContext->Flush(); immediateContext->Flush();
// Wait for the sync event so that we respect the maximum frame latency
uint64_t frameId = ++m_frameId;
m_frameLatencySignal->wait(frameId - GetActualFrameLatency());
for (uint32_t i = 0; i < SyncInterval || i < 1; i++) { for (uint32_t i = 0; i < SyncInterval || i < 1; i++) {
SynchronizePresent(); SynchronizePresent();
@ -283,12 +278,15 @@ namespace dxvk {
m_hud->render(m_context, info.format, info.imageExtent); m_hud->render(m_context, info.format, info.imageExtent);
if (i + 1 >= SyncInterval) if (i + 1 >= SyncInterval)
m_context->signal(m_frameLatencySignal, frameId); m_context->signal(m_frameLatencySignal, m_frameId);
SubmitPresent(immediateContext, sync, i); SubmitPresent(immediateContext, sync, i);
} }
SignalFrameLatencyEvent(); // Bump our frame id.
++m_frameId;
SyncFrameLatency();
return S_OK; return S_OK;
} }
@ -536,7 +534,10 @@ namespace dxvk {
} }
void D3D11SwapChain::SignalFrameLatencyEvent() { void D3D11SwapChain::SyncFrameLatency() {
// Wait for the sync event so that we respect the maximum frame latency
m_frameLatencySignal->wait(m_frameId - GetActualFrameLatency());
if (m_frameLatencyEvent) { if (m_frameLatencyEvent) {
// Signal event with the same value that we'd wait for during the next present. // Signal event with the same value that we'd wait for during the next present.
m_frameLatencySignal->setEvent(m_frameLatencyEvent, m_frameId - GetActualFrameLatency() + 1); m_frameLatencySignal->setEvent(m_frameLatencyEvent, m_frameId - GetActualFrameLatency() + 1);

2
src/d3d11/d3d11_swapchain.h
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@ -134,7 +134,7 @@ namespace dxvk {
void DestroyFrameLatencyEvent(); void DestroyFrameLatencyEvent();
void SignalFrameLatencyEvent(); void SyncFrameLatency();
uint32_t GetActualFrameLatency(); uint32_t GetActualFrameLatency();