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Default to D3D11VA on multi-GPU systems

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This commit is contained in:
Cameron Gutman 2023-03-13 22:56:28 -05:00
parent 640db09a64
commit 38156c9f7f
2 changed files with 28 additions and 6 deletions
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33
app/streaming/video/ffmpeg-renderers/dxva2.cpp
View file

@ -392,6 +392,14 @@ bool DXVA2Renderer::initializeDeviceQuirks()
if (SUCCEEDED(hr)) {
D3DCAPS9 caps;
UINT adapterCount = d3d9->GetAdapterCount();
if (adapterCount > 1) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Detected multi-GPU system with %d GPUs",
adapterCount);
m_DeviceQuirks |= DXVA2_QUIRK_MULTI_GPU;
}
hr = m_Device->GetDeviceCaps(&caps);
if (SUCCEEDED(hr)) {
D3DADAPTER_IDENTIFIER9 id;
@ -767,7 +775,8 @@ bool DXVA2Renderer::initialize(PDECODER_PARAMETERS params)
}
// If we have a WDDM 2.0 or later display driver and we're not running in
// full-screen exclusive mode, prefer the D3D11VA renderer.
// full-screen exclusive mode (or we're on a multi-GPU system in FSE),
// prefer the D3D11VA renderer.
//
// D3D11VA is better in this case because it can enable tearing in non-FSE
// modes when the user has V-Sync disabled. In non-FSE V-Sync cases, D3D11VA
@ -775,15 +784,27 @@ bool DXVA2Renderer::initialize(PDECODER_PARAMETERS params)
// in windowed mode. When using D3D9, DWM will not promote us to IFlip unless
// we're full-screen (exclusive or not).
//
// We prefer D3D11VA in FSE multi-GPU cases due to a plethora of issues with
// D3D9Ex PresentEx()/D3DPRESENT_DONOTWAIT on hybrid graphics systems (See
// issues #235, #240, #386, and #951 on GitHub). Clearly this codepath is not
// well tested by Microsoft or GPU vendors, so stick to the more common
// D3D11-based renderer which is much more likely to behave.
//
// NB: The reason we only do this for WDDM 2.0 and later is because older
// AMD drivers (such as those for the HD 5570) render garbage when using
// the D3D11VA renderer.
if (m_DecoderSelectionPass == 0 &&
(m_DeviceQuirks & DXVA2_QUIRK_WDDM_20_PLUS) &&
!((SDL_GetWindowFlags(params->window) & SDL_WINDOW_FULLSCREEN_DESKTOP) == SDL_WINDOW_FULLSCREEN)) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Defaulting to D3D11VA for non-FSE mode");
return false;
(m_DeviceQuirks & DXVA2_QUIRK_WDDM_20_PLUS)) {
if (!((SDL_GetWindowFlags(params->window) & SDL_WINDOW_FULLSCREEN_DESKTOP) == SDL_WINDOW_FULLSCREEN)) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Defaulting to D3D11VA for non-FSE mode");
return false;
}
else if (m_DeviceQuirks & DXVA2_QUIRK_MULTI_GPU) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Defaulting to D3D11VA for multi-GPU FSE mode");
return false;
}
}
if (!initializeDecoder()) {

1
app/streaming/video/ffmpeg-renderers/dxva2.h
View file

@ -81,5 +81,6 @@ private:
#define DXVA2_QUIRK_NO_VP 0x01
#define DXVA2_QUIRK_SET_DEST_FORMAT 0x02
#define DXVA2_QUIRK_WDDM_20_PLUS 0x04
#define DXVA2_QUIRK_MULTI_GPU 0x08
int m_DeviceQuirks;
};