WIP: D3D11VA support

Overlays work, but drawing the actual video is unimplemented
2026-06-18 22:50:57 +00:00 · 2020-01-11 14:22:15 -06:00
parent 76bd4a1c7b
commit 67612f607e
11 changed files with 1140 additions and 2 deletions
@@ -0,0 +1,57 @@
+#pragma once
+
+#include "renderer.h"
+#include "pacer/pacer.h"
+
+#include <d3d11_1.h>
+#include <dxgi1_5.h>
+
+extern "C" {
+#include <libavutil/hwcontext_d3d11va.h>
+}
+
+class D3D11VARenderer : public IFFmpegRenderer
+{
+public:
+    D3D11VARenderer();
+    virtual ~D3D11VARenderer() override;
+    virtual bool initialize(PDECODER_PARAMETERS params) override;
+    virtual bool prepareDecoderContext(AVCodecContext* context, AVDictionary**) override;
+    virtual void renderFrame(AVFrame* frame) override;
+    virtual void notifyOverlayUpdated(Overlay::OverlayType) override;
+    virtual void setHdrMode(bool enabled) override;
+    virtual int getRendererAttributes() override;
+
+private:
+    static void lockContext(void* lock_ctx);
+    static void unlockContext(void* lock_ctx);
+
+    bool setupRenderingResources();
+    void renderOverlay(Overlay::OverlayType type);
+    bool checkDecoderSupport(IDXGIAdapter* adapter);
+
+    IDXGIFactory5* m_Factory;
+    ID3D11Device* m_Device;
+    IDXGISwapChain4* m_SwapChain;
+    ID3D11DeviceContext* m_DeviceContext;
+    ID3D11RenderTargetView* m_RenderTargetView;
+    SDL_mutex* m_ContextLock;
+
+    DECODER_PARAMETERS m_DecoderParams;
+    int m_DisplayWidth;
+    int m_DisplayHeight;
+    bool m_Windowed;
+
+    bool m_AllowTearing;
+    HANDLE m_FrameWaitableObject;
+    ID3D11PixelShader* m_VideoPixelShader;
+
+    SDL_SpinLock m_OverlayLock;
+    ID3D11Buffer* m_OverlayVertexBuffers[Overlay::OverlayMax];
+    ID3D11Texture2D* m_OverlayTextures[Overlay::OverlayMax];
+    ID3D11ShaderResourceView* m_OverlayTextureResourceViews[Overlay::OverlayMax];
+    ID3D11PixelShader* m_OverlayPixelShader;
+
+    AVBufferRef* m_HwContext;
+};
+