gfx/webrender_bindings/RenderAndroidHardwareBufferTextureHost.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_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   layers::AndroidHardwareBuffer* GetAndroidHardwareBuffer() {
  49     return mAndroidHardwareBuffer;
  50   }
  51
  52   gfx::IntSize GetSize() const;
  53
  54  private:
  55   virtual ~RenderAndroidHardwareBufferTextureHost();
  56   bool EnsureLockable();
  57   void DestroyEGLImage();
  58   void DeleteTextureHandle();
  59   already_AddRefed<gfx::DataSourceSurface> ReadTexImage();
  60
  61   const RefPtr<layers::AndroidHardwareBuffer> mAndroidHardwareBuffer;
  62
  63   RefPtr<gl::GLContext> mGL;
  64   EGLImage mEGLImage;
  65   GLuint mTextureHandle;
  66
  67   RefPtr<gfx::DataSourceSurface> mReadback;
  68 };
  69
  70 }  // namespace wr
  71 }  // namespace mozilla
  72
  73 #endif  // MOZILLA_GFX_RenderAndroidHardwareBufferTextureHost_H