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NVIDIA: low latency code decouple

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This commit is contained in:
Kawe Mazidjatari 2023-12-25 01:46:39 +01:00
parent 6575f80447
commit f08f9dd4cb
2 changed files with 47 additions and 31 deletions
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75
src/engine/sys_dll2.cpp
View File

@ -179,6 +179,49 @@ void CEngineAPI::PumpMessages()
#endif // !DEDICATED #endif // !DEDICATED
} }
void CEngineAPI::UpdateLowLatencyParameters()
{
#ifndef DEDICATED
const bool bUseLowLatencyMode = gfx_nvnUseLowLatency->GetBool();
const bool bUseLowLatencyBoost = gfx_nvnUseLowLatencyBoost->GetBool();
const bool bUseMarkersToOptimize = gfx_nvnUseMarkersToOptimize->GetBool();
float fpsMax = fps_max_gfx->GetFloat();
if (fpsMax == -1.0f)
{
const float globalFps = fps_max->GetFloat();
// Make sure the global fps limiter is 'unlimited'
// before we let the gfx frame limiter cap it to
// the desktop's refresh rate; not adhering to
// this will result in a major performance drop.
if (globalFps == 0.0f)
fpsMax = g_pGame->GetTVRefreshRate();
else
fpsMax = 0.0f; // Don't let NVIDIA limit the frame rate.
}
GFX_UpdateLowLatencyParameters(D3D11Device(), bUseLowLatencyMode,
bUseLowLatencyBoost, bUseMarkersToOptimize, fpsMax);
#endif // !DEDICATED
}
void CEngineAPI::RunLowLatencyFrame()
{
#ifndef DEDICATED
if (GFX_IsLowLatencySDKEnabled())
{
if (GFX_HasPendingLowLatencyParameterUpdates())
{
UpdateLowLatencyParameters();
}
GFX_RunLowLatencyFrame(D3D11Device());
}
#endif // !DEDICATED
}
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Purpose: // Purpose:
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
@ -197,37 +240,7 @@ bool CEngineAPI::MainLoop()
} }
#ifndef DEDICATED #ifndef DEDICATED
if (GFX_IsLowLatencySDKEnabled()) CEngineAPI::RunLowLatencyFrame();
{
if (GFX_HasPendingLowLatencyParameterUpdates())
{
const bool bUseLowLatencyMode = gfx_nvnUseLowLatency->GetBool();
const bool bUseLowLatencyBoost = gfx_nvnUseLowLatencyBoost->GetBool();
const bool bUseMarkersToOptimize = gfx_nvnUseMarkersToOptimize->GetBool();
float fpsMax = fps_max_gfx->GetFloat();
if (fpsMax == -1.0f)
{
const float globalFps = fps_max->GetFloat();
// Make sure the global fps limiter is 'unlimited'
// before we let the gfx frame limiter cap it to
// the desktop's refresh rate; not adhering to
// this will result in a major performance drop.
if (globalFps == 0.0f)
fpsMax = g_pGame->GetTVRefreshRate();
else
fpsMax = 0.0f; // Don't let NVIDIA limit the frame rate.
}
GFX_UpdateLowLatencyParameters(D3D11Device(), bUseLowLatencyMode,
bUseLowLatencyBoost, bUseMarkersToOptimize, fpsMax);
}
GFX_RunLowLatencyFrame(D3D11Device());
}
CEngineAPI::PumpMessages(); CEngineAPI::PumpMessages();
#endif // !DEDICATED #endif // !DEDICATED

3
src/engine/sys_dll2.h
View File

@ -35,6 +35,9 @@ public:
static void VSetStartupInfo(CEngineAPI* pEngineAPI, StartupInfo_t* pStartupInfo); static void VSetStartupInfo(CEngineAPI* pEngineAPI, StartupInfo_t* pStartupInfo);
static void PumpMessages(); static void PumpMessages();
static void RunLowLatencyFrame();
static void UpdateLowLatencyParameters();
static bool MainLoop(); static bool MainLoop();
//private: //private:
void* m_hEditorHWnd; void* m_hEditorHWnd;