gfx/webrender_bindings/RenderCompositorD3D11SWGL.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_D3D11_H
   8 #define MOZILLA_GFX_RENDERCOMPOSITOR_D3D11_H
   9
  10 #include "mozilla/layers/ScreenshotGrabber.h"
  11 #include "mozilla/layers/TextureD3D11.h"
  12 #include "mozilla/layers/CompositorD3D11.h"
  13 #include "mozilla/webrender/RenderCompositorLayersSWGL.h"
  14
  15 namespace mozilla {
  16
  17 namespace wr {
  18
  19 class SurfaceD3D11SWGL;
  20
  21 class RenderCompositorD3D11SWGL : public RenderCompositorLayersSWGL {
  22  public:
  23   static UniquePtr<RenderCompositor> Create(
  24       RefPtr<widget::CompositorWidget>&& aWidget, nsACString& aError);
  25
  26   RenderCompositorD3D11SWGL(layers::CompositorD3D11* aCompositor,
  27                             RefPtr<widget::CompositorWidget>&& aWidget,
  28                             void* aContext);
  29   virtual ~RenderCompositorD3D11SWGL();
  30
  31   void Pause() override;
  32   bool Resume() override;
  33
  34   GLenum IsContextLost(bool aForce) override;
  35
  36   layers::WebRenderCompositor CompositorType() const override {
  37     return layers::WebRenderCompositor::D3D11;
  38   }
  39   RenderCompositorD3D11SWGL* AsRenderCompositorD3D11SWGL() override {
  40     return this;
  41   }
  42
  43   bool BeginFrame() override;
  44
  45   bool MaybeReadback(const gfx::IntSize& aReadbackSize,
  46                      const wr::ImageFormat& aReadbackFormat,
  47                      const Range<uint8_t>& aReadbackBuffer,
  48                      bool* aNeedsYFlip) override;
  49
  50   layers::CompositorD3D11* GetCompositorD3D11() {
  51     return mCompositor->AsCompositorD3D11();
  52   }
  53
  54   ID3D11Device* GetDevice() { return GetCompositorD3D11()->GetDevice(); }
  55
  56  private:
  57   already_AddRefed<ID3D11Texture2D> CreateStagingTexture(
  58       const gfx::IntSize aSize);
  59   already_AddRefed<DataSourceSurface> CreateStagingSurface(
  60       const gfx::IntSize aSize);
  61
  62   void HandleExternalImage(RenderTextureHost* aExternalImage,
  63                            FrameSurface& aFrameSurface) override;
  64   UniquePtr<RenderCompositorLayersSWGL::Surface> DoCreateSurface(
  65       wr::DeviceIntSize aTileSize, bool aIsOpaque) override;
  66   UniquePtr<RenderCompositorLayersSWGL::Tile> DoCreateTile(
  67       Surface* aSurface) override;
  68
  69   class TileD3D11 : public RenderCompositorLayersSWGL::Tile {
  70    public:
  71     TileD3D11(layers::DataTextureSourceD3D11* aTexture,
  72               ID3D11Texture2D* aStagingTexture,
  73               DataSourceSurface* aDataSourceSurface, Surface* aOwner,
  74               RenderCompositorD3D11SWGL* aRenderCompositor);
  75     virtual ~TileD3D11() {}
  76
  77     bool Map(wr::DeviceIntRect aDirtyRect, wr::DeviceIntRect aValidRect,
  78              void** aData, int32_t* aStride) override;
  79     void Unmap(const gfx::IntRect& aDirtyRect) override;
  80     layers::DataTextureSource* GetTextureSource() override { return mTexture; }
  81     bool IsValid() override;
  82
  83    private:
  84     RefPtr<layers::DataTextureSourceD3D11> mTexture;
  85     RefPtr<ID3D11Texture2D> mStagingTexture;
  86     RefPtr<DataSourceSurface> mSurface;
  87     SurfaceD3D11SWGL* mOwner;
  88     RenderCompositorD3D11SWGL* mRenderCompositor;
  89   };
  90
  91   enum UploadMode {
  92     Upload_Immediate,
  93     Upload_Staging,
  94     Upload_StagingNoBlock,
  95     Upload_StagingPooled
  96   };
  97   UploadMode GetUploadMode();
  98   UploadMode mUploadMode = Upload_Staging;
  99
 100   RefPtr<ID3D11Texture2D> mCurrentStagingTexture;
 101   bool mCurrentStagingTextureIsTemp = false;
 102 };
 103
 104 class SurfaceD3D11SWGL : public RenderCompositorLayersSWGL::Surface {
 105  public:
 106   SurfaceD3D11SWGL(wr::DeviceIntSize aTileSize, bool aIsOpaque);
 107   virtual ~SurfaceD3D11SWGL() {}
 108
 109   SurfaceD3D11SWGL* AsSurfaceD3D11SWGL() override { return this; }
 110
 111   nsTArray<RefPtr<ID3D11Texture2D>> mStagingPool;
 112 };
 113
 114 }  // namespace wr
 115 }  // namespace mozilla
 116
 117 #endif