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[host] windows: make D3DKMTSetProcessSchedulingPriorityClass
global
Testing shows that `D3DKMTSetProcessSchedulingPriorityClass` has a positive performance impact for NvFBC as well as DXGI, as such always try to boost the priority for the windows host.
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@ -37,18 +37,6 @@
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#include "dxgi_extra.h"
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typedef enum _D3DKMT_SCHEDULINGPRIORITYCLASS
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{
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D3DKMT_SCHEDULINGPRIORITYCLASS_IDLE,
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D3DKMT_SCHEDULINGPRIORITYCLASS_BELOW_NORMAL,
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D3DKMT_SCHEDULINGPRIORITYCLASS_NORMAL,
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D3DKMT_SCHEDULINGPRIORITYCLASS_ABOVE_NORMAL,
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D3DKMT_SCHEDULINGPRIORITYCLASS_HIGH,
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D3DKMT_SCHEDULINGPRIORITYCLASS_REALTIME
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}
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D3DKMT_SCHEDULINGPRIORITYCLASS;
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typedef NTSTATUS WINAPI (*PD3DKMTSetProcessSchedulingPriorityClass)(HANDLE, D3DKMT_SCHEDULINGPRIORITYCLASS);
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#define LOCKED(x) INTERLOCKED_SECTION(this->deviceContextLock, x)
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enum TextureState
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@ -433,39 +421,6 @@ static bool dxgi_init(void)
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DEBUG_INFO("Capture Size : %u x %u", this->width, this->height);
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DEBUG_INFO("AcquireLock : %s" , this->useAcquireLock ? "enabled" : "disabled");
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// bump up our priority
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{
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HMODULE gdi32 = GetModuleHandleA("GDI32");
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if (gdi32)
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{
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PD3DKMTSetProcessSchedulingPriorityClass fn =
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(PD3DKMTSetProcessSchedulingPriorityClass)GetProcAddress(gdi32, "D3DKMTSetProcessSchedulingPriorityClass");
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if (fn)
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{
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status = fn(GetCurrentProcess(), D3DKMT_SCHEDULINGPRIORITYCLASS_REALTIME);
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if (FAILED(status))
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{
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DEBUG_WARN("Failed to set realtime GPU priority.");
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DEBUG_INFO("This is not a failure, please do not report this as an issue.");
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DEBUG_INFO("To fix this, install and run the Looking Glass host as a service.");
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DEBUG_INFO("looking-glass-host.exe InstallService");
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}
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}
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}
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IDXGIDevice * dxgi;
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status = ID3D11Device_QueryInterface(this->device, &IID_IDXGIDevice, (void **)&dxgi);
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if (FAILED(status))
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{
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DEBUG_WINERROR("failed to query DXGI interface from device", status);
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goto fail;
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}
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IDXGIDevice_SetGPUThreadPriority(dxgi, 7);
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IDXGIDevice_Release(dxgi);
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}
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// try to reduce the latency
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{
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IDXGIDevice1 * dxgi;
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@ -467,6 +467,41 @@ finish:
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return result;
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}
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void boostPriority(void)
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{
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typedef enum _D3DKMT_SCHEDULINGPRIORITYCLASS
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{
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D3DKMT_SCHEDULINGPRIORITYCLASS_IDLE,
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D3DKMT_SCHEDULINGPRIORITYCLASS_BELOW_NORMAL,
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D3DKMT_SCHEDULINGPRIORITYCLASS_NORMAL,
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D3DKMT_SCHEDULINGPRIORITYCLASS_ABOVE_NORMAL,
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D3DKMT_SCHEDULINGPRIORITYCLASS_HIGH,
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D3DKMT_SCHEDULINGPRIORITYCLASS_REALTIME
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}
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D3DKMT_SCHEDULINGPRIORITYCLASS;
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typedef NTSTATUS WINAPI (*PD3DKMTSetProcessSchedulingPriorityClass)
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(HANDLE, D3DKMT_SCHEDULINGPRIORITYCLASS);
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HMODULE gdi32 = GetModuleHandleA("GDI32");
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if (!gdi32)
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return;
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PD3DKMTSetProcessSchedulingPriorityClass fn =
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(PD3DKMTSetProcessSchedulingPriorityClass)
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GetProcAddress(gdi32, "D3DKMTSetProcessSchedulingPriorityClass");
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if (!fn)
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return;
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if (FAILED(fn(GetCurrentProcess(), D3DKMT_SCHEDULINGPRIORITYCLASS_REALTIME)))
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{
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DEBUG_WARN("Failed to set realtime GPU priority.");
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DEBUG_INFO("This is not a failure, please do not report this as an issue.");
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DEBUG_INFO("To fix this, install and run the Looking Glass host as a service.");
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DEBUG_INFO("looking-glass-host.exe InstallService");
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}
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}
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bool app_init(void)
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{
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const char * logFile = option_get_string("os", "logFile" );
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@ -490,6 +525,9 @@ bool app_init(void)
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// get the performance frequency for spinlocks
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QueryPerformanceFrequency(&app.perfFreq);
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// try to boost the scheduler priority
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boostPriority();
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return true;
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}
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