gfx/webrender_bindings/RenderCompositorANGLE.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef MOZILLA_GFX_RENDERCOMPOSITOR_ANGLE_H
   8 #define MOZILLA_GFX_RENDERCOMPOSITOR_ANGLE_H
   9
  10 #include <queue>
  11
  12 #include "GLTypes.h"
  13 #include "mozilla/Maybe.h"
  14 #include "mozilla/webrender/RenderCompositor.h"
  15 #include "mozilla/webrender/RenderThread.h"
  16
  17 struct ID3D11DeviceContext;
  18 struct ID3D11Device;
  19 struct ID3D11Query;
  20 struct IDXGIFactory2;
  21 struct IDXGISwapChain;
  22 struct IDXGISwapChain1;
  23
  24 namespace mozilla {
  25 namespace gl {
  26 class GLLibraryEGL;
  27 }  // namespace gl
  28
  29 namespace wr {
  30
  31 class DCLayerTree;
  32
  33 class RenderCompositorANGLE : public RenderCompositor {
  34  public:
  35   static UniquePtr<RenderCompositor> Create(
  36       RefPtr<widget::CompositorWidget>&& aWidget, nsACString& aError);
  37
  38   explicit RenderCompositorANGLE(RefPtr<widget::CompositorWidget>&& aWidget);
  39   virtual ~RenderCompositorANGLE();
  40   bool Initialize(nsACString& aError);
  41
  42   bool BeginFrame() override;
  43   RenderedFrameId EndFrame(const nsTArray<DeviceIntRect>& aDirtyRects) final;
  44   bool WaitForGPU() override;
  45   RenderedFrameId GetLastCompletedFrameId() final;
  46   RenderedFrameId UpdateFrameId() final;
  47   void Pause() override;
  48   bool Resume() override;
  49   void Update() override;
  50
  51   gl::GLContext* gl() const override { return RenderThread::Get()->SharedGL(); }
  52
  53   bool MakeCurrent() override;
  54
  55   bool UseANGLE() const override { return true; }
  56
  57   bool UseDComp() const override { return !!mDCLayerTree; }
  58
  59   bool UseTripleBuffering() const override { return mUseTripleBuffering; }
  60
  61   layers::WebRenderCompositor CompositorType() const override {
  62     if (UseDComp()) {
  63       return layers::WebRenderCompositor::DIRECT_COMPOSITION;
  64     }
  65     return layers::WebRenderCompositor::DRAW;
  66   }
  67
  68   LayoutDeviceIntSize GetBufferSize() override;
  69
  70   GLenum IsContextLost(bool aForce) override;
  71
  72   bool SurfaceOriginIsTopLeft() override { return true; }
  73
  74   bool SupportAsyncScreenshot() override;
  75
  76   bool ShouldUseNativeCompositor() override;
  77   uint32_t GetMaxUpdateRects() override;
  78
  79   // Interface for wr::Compositor
  80   void CompositorBeginFrame() override;
  81   void CompositorEndFrame() override;
  82   void Bind(wr::NativeTileId aId, wr::DeviceIntPoint* aOffset, uint32_t* aFboId,
  83             wr::DeviceIntRect aDirtyRect,
  84             wr::DeviceIntRect aValidRect) override;
  85   void Unbind() override;
  86   void CreateSurface(wr::NativeSurfaceId aId, wr::DeviceIntPoint aVirtualOffset,
  87                      wr::DeviceIntSize aTileSize, bool aIsOpaque) override;
  88   void CreateExternalSurface(wr::NativeSurfaceId aId, bool aIsOpaque) override;
  89   void DestroySurface(NativeSurfaceId aId) override;
  90   void CreateTile(wr::NativeSurfaceId aId, int32_t aX, int32_t aY) override;
  91   void DestroyTile(wr::NativeSurfaceId aId, int32_t aX, int32_t aY) override;
  92   void AttachExternalImage(wr::NativeSurfaceId aId,
  93                            wr::ExternalImageId aExternalImage) override;
  94   void AddSurface(wr::NativeSurfaceId aId,
  95                   const wr::CompositorSurfaceTransform& aTransform,
  96                   wr::DeviceIntRect aClipRect,
  97                   wr::ImageRendering aImageRendering) override;
  98   void EnableNativeCompositor(bool aEnable) override;
  99   CompositorCapabilities GetCompositorCapabilities() override;
 100
 101   // Interface for partial present
 102   bool UsePartialPresent() override;
 103   bool RequestFullRender() override;
 104   uint32_t GetMaxPartialPresentRects() override;
 105
 106   bool MaybeReadback(const gfx::IntSize& aReadbackSize,
 107                      const wr::ImageFormat& aReadbackFormat,
 108                      const Range<uint8_t>& aReadbackBuffer,
 109                      bool* aNeedsYFlip) override;
 110
 111  protected:
 112   bool UseCompositor();
 113   void InitializeUsePartialPresent();
 114   void InsertGraphicsCommandsFinishedWaitQuery(
 115       RenderedFrameId aRenderedFrameId);
 116   bool WaitForPreviousGraphicsCommandsFinishedQuery(bool aWaitAll = false);
 117   bool ResizeBufferIfNeeded();
 118   bool CreateEGLSurface();
 119   void DestroyEGLSurface();
 120   ID3D11Device* GetDeviceOfEGLDisplay(nsACString& aError);
 121   bool CreateSwapChain(nsACString& aError);
 122   void CreateSwapChainForDCompIfPossible(IDXGIFactory2* aDXGIFactory2);
 123   RefPtr<IDXGISwapChain1> CreateSwapChainForDComp(bool aUseTripleBuffering,
 124                                                   bool aUseAlpha);
 125   bool ShutdownEGLLibraryIfNecessary(nsACString& aError);
 126   RefPtr<ID3D11Query> GetD3D11Query();
 127   void ReleaseNativeCompositorResources();
 128   HWND GetCompositorHwnd();
 129
 130   EGLConfig mEGLConfig;
 131   EGLSurface mEGLSurface;
 132
 133   bool mUseTripleBuffering;
 134   bool mUseAlpha;
 135
 136   RefPtr<ID3D11Device> mDevice;
 137   RefPtr<ID3D11DeviceContext> mCtx;
 138   RefPtr<IDXGISwapChain> mSwapChain;
 139   RefPtr<IDXGISwapChain1> mSwapChain1;
 140
 141   UniquePtr<DCLayerTree> mDCLayerTree;
 142
 143   std::queue<std::pair<RenderedFrameId, RefPtr<ID3D11Query>>>
 144       mWaitForPresentQueries;
 145   RefPtr<ID3D11Query> mRecycledQuery;
 146   RenderedFrameId mLastCompletedFrameId;
 147
 148   Maybe<LayoutDeviceIntSize> mBufferSize;
 149   bool mUseNativeCompositor;
 150   bool mUsePartialPresent;
 151   bool mFullRender;
 152   // Used to know a timing of disabling native compositor.
 153   bool mDisablingNativeCompositor;
 154 };
 155
 156 }  // namespace wr
 157 }  // namespace mozilla
 158
 159 #endif