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libobs-d3d11: Increase the frame queue capacity 

Sometimes Present stalls are seen when multiple swap chains are active.
This seems to fix that.
master
jpark37 2019-12-19 10:00:59 -08:00
parent 0d45f4d577
commit b5b6f24d5b
1 changed files with 25 additions and 1 deletions
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26
libobs-d3d11/d3d11-subsystem.cpp
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@ -380,6 +380,25 @@ try {
return false;
}
static bool increase_maximum_frame_latency(ID3D11Device *device)
{
ComQIPtr<IDXGIDevice1> dxgiDevice(device);
if (!dxgiDevice) {
blog(LOG_DEBUG, "%s: Failed to get IDXGIDevice1", __FUNCTION__);
return false;
}
const HRESULT hr = dxgiDevice->SetMaximumFrameLatency(16);
if (FAILED(hr)) {
blog(LOG_DEBUG, "%s: SetMaximumFrameLatency failed",
__FUNCTION__);
return false;
}
blog(LOG_INFO, "DXGI increase maximum frame latency success");
return true;
}
#if USE_GPU_PRIORITY
static bool set_priority(ID3D11Device *device)
{
@ -467,7 +486,12 @@ void gs_device::InitDevice(uint32_t adapterIdx)
blog(LOG_INFO, "D3D11 loaded successfully, feature level used: %x",
(unsigned int)levelUsed);
/* adjust gpu thread priority on non-intel GPUs*/
/* prevent stalls sometimes seen in Present calls */
if (!increase_maximum_frame_latency(device)) {
blog(LOG_INFO, "DXGI increase maximum frame latency failed");
}
/* adjust gpu thread priority on non-intel GPUs */
#if USE_GPU_PRIORITY
if (desc.VendorId != 0x8086 && !set_priority(device)) {
blog(LOG_INFO, "D3D11 GPU priority setup "