gfx/webrender_bindings/RenderBufferTextureHost.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_RENDERBUFFERTEXTUREHOST_H
   8 #define MOZILLA_GFX_RENDERBUFFERTEXTUREHOST_H
   9
  10 #include "RenderTextureHostSWGL.h"
  11
  12 namespace mozilla {
  13 namespace wr {
  14
  15 class RenderBufferTextureHost final : public RenderTextureHostSWGL {
  16  public:
  17   RenderBufferTextureHost(uint8_t* aBuffer,
  18                           const layers::BufferDescriptor& aDescriptor);
  19
  20   // RenderTextureHost
  21   wr::WrExternalImage Lock(uint8_t aChannelIndex, gl::GLContext* aGL) override;
  22   void Unlock() override;
  23
  24   size_t Bytes() override {
  25     return mSize.width * mSize.height * BytesPerPixel(mFormat);
  26   }
  27   class RenderBufferData {
  28    public:
  29     RenderBufferData(uint8_t* aData, size_t aBufferSize)
  30         : mData(aData), mBufferSize(aBufferSize) {}
  31     const uint8_t* mData;
  32     size_t mBufferSize;
  33   };
  34
  35   RenderBufferData GetBufferDataForRender(uint8_t aChannelIndex);
  36
  37   // RenderTextureHostSWGL
  38   size_t GetPlaneCount() const override;
  39
  40   gfx::SurfaceFormat GetFormat() const override;
  41
  42   gfx::ColorDepth GetColorDepth() const override;
  43
  44   gfx::YUVRangedColorSpace GetYUVColorSpace() const override;
  45
  46   bool MapPlane(RenderCompositor* aCompositor, uint8_t aChannelIndex,
  47                 PlaneInfo& aPlaneInfo) override;
  48
  49   void UnmapPlanes() override;
  50
  51   void Destroy() override;
  52
  53  private:
  54   virtual ~RenderBufferTextureHost();
  55
  56   uint8_t* GetBuffer() const { return mBuffer; }
  57
  58   uint8_t* mBuffer;
  59   layers::BufferDescriptor mDescriptor;
  60   gfx::IntSize mSize;
  61   gfx::SurfaceFormat mFormat;
  62
  63   RefPtr<gfx::DataSourceSurface> mSurface;
  64   gfx::DataSourceSurface::MappedSurface mMap;
  65
  66   RefPtr<gfx::DataSourceSurface> mYSurface;
  67   RefPtr<gfx::DataSourceSurface> mCbSurface;
  68   RefPtr<gfx::DataSourceSurface> mCrSurface;
  69   gfx::DataSourceSurface::MappedSurface mYMap;
  70   gfx::DataSourceSurface::MappedSurface mCbMap;
  71   gfx::DataSourceSurface::MappedSurface mCrMap;
  72
  73   bool mLocked;
  74
  75   bool mDestroyed = false;
  76 };
  77
  78 }  // namespace wr
  79 }  // namespace mozilla
  80
  81 #endif  // MOZILLA_GFX_RENDERBUFFERTEXTUREHOST_H