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RenderAndroidHardwareBufferTextureHost.h (2217B)

      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_RenderAndroidHardwareBufferTextureHost_H
      8 #define MOZILLA_GFX_RenderAndroidHardwareBufferTextureHost_H
      9 
     10 #include "GLContextTypes.h"
     11 #include "GLTypes.h"
     12 #include "RenderTextureHostSWGL.h"
     13 
     14 namespace mozilla {
     15 
     16 namespace layers {
     17 class AndroidHardwareBuffer;
     18 }
     19 
     20 namespace wr {
     21 
     22 class RenderAndroidHardwareBufferTextureHost final
     23    : public RenderTextureHostSWGL {
     24 public:
     25  explicit RenderAndroidHardwareBufferTextureHost(
     26      layers::AndroidHardwareBuffer* aAndroidHardwareBuffer);
     27 
     28  wr::WrExternalImage Lock(uint8_t aChannelIndex, gl::GLContext* aGL) override;
     29  void Unlock() override;
     30 
     31  size_t Bytes() override;
     32 
     33  RenderAndroidHardwareBufferTextureHost*
     34  AsRenderAndroidHardwareBufferTextureHost() override {
     35    return this;
     36  }
     37 
     38  // RenderTextureHostSWGL
     39  gfx::SurfaceFormat GetFormat() const override;
     40  gfx::ColorDepth GetColorDepth() const override {
     41    return gfx::ColorDepth::COLOR_8;
     42  }
     43  size_t GetPlaneCount() const override { return 1; }
     44  bool MapPlane(RenderCompositor* aCompositor, uint8_t aChannelIndex,
     45                PlaneInfo& aPlaneInfo) override;
     46  void UnmapPlanes() override;
     47 
     48  RefPtr<layers::TextureSource> CreateTextureSource(
     49      layers::TextureSourceProvider* aProvider) override;
     50 
     51  layers::AndroidHardwareBuffer* GetAndroidHardwareBuffer() {
     52    return mAndroidHardwareBuffer;
     53  }
     54 
     55  gfx::IntSize GetSize() const;
     56 
     57 private:
     58  virtual ~RenderAndroidHardwareBufferTextureHost();
     59  bool EnsureLockable();
     60  void DestroyEGLImage();
     61  void DeleteTextureHandle();
     62  already_AddRefed<gfx::DataSourceSurface> ReadTexImage();
     63 
     64  const RefPtr<layers::AndroidHardwareBuffer> mAndroidHardwareBuffer;
     65 
     66  RefPtr<gl::GLContext> mGL;
     67  EGLImage mEGLImage;
     68  GLuint mTextureHandle;
     69 
     70  RefPtr<gfx::DataSourceSurface> mReadback;
     71 };
     72 
     73 }  // namespace wr
     74 }  // namespace mozilla
     75 
     76 #endif  // MOZILLA_GFX_RenderAndroidHardwareBufferTextureHost_H