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Use a D3D11Fence to wait to start the next frame until the previous frame is finished

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This commit is contained in:
Cameron Gutman 2026-01-07 19:04:15 -06:00
commit cda65ab58d
2 changed files with 71 additions and 37 deletions
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6
app/streaming/video/ffmpeg-renderers/d3d11va.h
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@ -10,6 +10,7 @@ extern "C" {
}
#include <wrl/client.h>
#include <wrl/wrappers/corewrappers.h>
class D3D11VARenderer : public IFFmpegRenderer
{
@ -21,6 +22,7 @@ public:
virtual bool prepareDecoderContextInGetFormat(AVCodecContext* context, AVPixelFormat pixelFormat) override;
virtual void renderFrame(AVFrame* frame) override;
virtual void notifyOverlayUpdated(Overlay::OverlayType) override;
virtual void waitToRender() override;
virtual int getRendererAttributes() override;
virtual int getDecoderCapabilities() override;
virtual InitFailureReason getInitFailureReason() override;
@ -65,9 +67,11 @@ private:
Microsoft::WRL::ComPtr<ID3D11BlendState> m_OverlayBlendState;
SupportedFenceType m_FenceType;
Microsoft::WRL::ComPtr<ID3D11Fence> m_Fence;
Microsoft::WRL::Wrappers::Event m_FenceEvent;
UINT64 m_NextFenceValue;
SDL_mutex* m_ContextLock;
bool m_BindDecoderOutputTextures;
bool m_UseFenceHack;
DECODER_PARAMETERS m_DecoderParams;
int m_TextureAlignment;