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[dxgi] Implement IDXGIDevice::SetMaximumFrameLatency

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We'll be doing the CPU synchronization with DXVK events during
presentation.
This commit is contained in:
Philip Rebohle 2018-07-20 11:39:51 +02:00
parent 0fd8019a70
commit fd55520301
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GPG Key ID: C8CC613427A31C99
2 changed files with 27 additions and 4 deletions
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22
src/dxgi/dxgi_device.cpp
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@ -2,6 +2,8 @@
#include "dxgi_factory.h" #include "dxgi_factory.h"
namespace dxvk { namespace dxvk {
constexpr uint32_t DxgiDevice::DefaultFrameLatency;
DxgiDevice::DxgiDevice( DxgiDevice::DxgiDevice(
IDXGIObject* pContainer, IDXGIObject* pContainer,
@ -10,6 +12,9 @@ namespace dxvk {
: m_container (pContainer), : m_container (pContainer),
m_adapter (pAdapter) { m_adapter (pAdapter) {
m_device = m_adapter->GetDXVKAdapter()->createDevice(*pFeatures); m_device = m_adapter->GetDXVKAdapter()->createDevice(*pFeatures);
for (uint32_t i = 0; i < m_frameEvents.size(); i++)
m_frameEvents[i] = new DxvkEvent();
} }
@ -107,15 +112,20 @@ namespace dxvk {
HRESULT STDMETHODCALLTYPE DxgiDevice::GetMaximumFrameLatency( HRESULT STDMETHODCALLTYPE DxgiDevice::GetMaximumFrameLatency(
UINT* pMaxLatency) { UINT* pMaxLatency) {
Logger::warn("DxgiDevice::GetMaximumFrameLatency: Stub"); *pMaxLatency = m_frameLatency;
*pMaxLatency = 1;
return S_OK; return S_OK;
} }
HRESULT STDMETHODCALLTYPE DxgiDevice::SetMaximumFrameLatency( HRESULT STDMETHODCALLTYPE DxgiDevice::SetMaximumFrameLatency(
UINT MaxLatency) { UINT MaxLatency) {
Logger::warn("DxgiDevice::SetMaximumFrameLatency: Stub"); if (MaxLatency == 0)
MaxLatency = DefaultFrameLatency;
if (MaxLatency > m_frameEvents.size())
MaxLatency = m_frameEvents.size();
m_frameLatency = MaxLatency;
return S_OK; return S_OK;
} }
@ -149,4 +159,10 @@ namespace dxvk {
return m_device; return m_device;
} }
Rc<DxvkEvent> STDMETHODCALLTYPE DxgiDevice::GetFrameSyncEvent() {
uint32_t frameId = m_frameId++ % m_frameLatency;
return m_frameEvents[frameId];
}
} }

9
src/dxgi/dxgi_device.h
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@ -10,7 +10,7 @@ namespace dxvk {
class DxgiFactory; class DxgiFactory;
class DxgiDevice : public IDXGIVkDevice { class DxgiDevice : public IDXGIVkDevice {
constexpr static uint32_t DefaultFrameLatency = 3;
public: public:
DxgiDevice( DxgiDevice(
@ -86,6 +86,8 @@ namespace dxvk {
HANDLE hEvent) final; HANDLE hEvent) final;
Rc<DxvkDevice> STDMETHODCALLTYPE GetDXVKDevice() final; Rc<DxvkDevice> STDMETHODCALLTYPE GetDXVKDevice() final;
Rc<DxvkEvent> STDMETHODCALLTYPE GetFrameSyncEvent();
private: private:
@ -93,6 +95,11 @@ namespace dxvk {
Com<IDXGIVkAdapter> m_adapter; Com<IDXGIVkAdapter> m_adapter;
Rc<DxvkDevice> m_device; Rc<DxvkDevice> m_device;
uint32_t m_frameLatency = DefaultFrameLatency;
uint32_t m_frameId = 0;
std::array<Rc<DxvkEvent>, 16> m_frameEvents;
}; };