GrallocTextureHost.h

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2 //  * This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef MOZILLA_GFX_GRALLOCTEXTUREHOST_H
   7 #define MOZILLA_GFX_GRALLOCTEXTUREHOST_H
   8 #ifdef MOZ_WIDGET_GONK
   9
  10 #include "mozilla/layers/TextureHostOGL.h"
  11 #include "mozilla/layers/ShadowLayerUtilsGralloc.h"
  12 #include <ui/GraphicBuffer.h>
  13
  14 namespace mozilla {
  15 namespace layers {
  16
  17 class GrallocTextureHostOGL;
  18
  19 class GrallocTextureSourceOGL : public NewTextureSource
  20                               , public TextureSourceOGL
  21 {
  22 public:
  23   friend class GrallocTextureHostOGL;
  24
  25   GrallocTextureSourceOGL(CompositorOGL* aCompositor,
  26                           android::GraphicBuffer* aGraphicBuffer,
  27                           gfx::SurfaceFormat aFormat);
  28
  29   virtual bool IsValid() const MOZ_OVERRIDE;
  30
  31   virtual void BindTexture(GLenum aTextureUnit) MOZ_OVERRIDE;
  32
  33   virtual void UnbindTexture() MOZ_OVERRIDE {}
  34
  35   virtual gfx::IntSize GetSize() const MOZ_OVERRIDE;
  36
  37   virtual TextureSourceOGL* AsSourceOGL() MOZ_OVERRIDE { return this; }
  38
  39   virtual GLenum GetTextureTarget() const MOZ_OVERRIDE;
  40
  41   virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE;
  42
  43   virtual GLenum GetWrapMode() const MOZ_OVERRIDE
  44   {
  45     return LOCAL_GL_CLAMP_TO_EDGE;
  46   }
  47
  48   void DeallocateDeviceData();
  49
  50   gl::GLContext* gl() const;
  51
  52   void SetCompositor(CompositorOGL* aCompositor)
  53   {
  54     mCompositor = aCompositor;
  55   }
  56
  57   void ForgetBuffer()
  58   {
  59     mGraphicBuffer = nullptr;
  60   }
  61
  62   already_AddRefed<gfxImageSurface> GetAsSurface();
  63
  64 protected:
  65   CompositorOGL* mCompositor;
  66   android::sp<android::GraphicBuffer> mGraphicBuffer;
  67   EGLImage mEGLImage;
  68   gfx::SurfaceFormat mFormat;
  69 };
  70
  71 class GrallocTextureHostOGL : public TextureHost
  72 {
  73   friend class GrallocBufferActor;
  74 public:
  75   GrallocTextureHostOGL(uint64_t aID,
  76                         TextureFlags aFlags,
  77                         const NewSurfaceDescriptorGralloc& aDescriptor);
  78
  79   virtual ~GrallocTextureHostOGL();
  80
  81   virtual void Updated(const nsIntRegion* aRegion) MOZ_OVERRIDE {}
  82
  83   virtual bool Lock() MOZ_OVERRIDE;
  84
  85   virtual void Unlock() MOZ_OVERRIDE;
  86
  87   virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
  88
  89   virtual void DeallocateSharedData() MOZ_OVERRIDE;
  90
  91   virtual void DeallocateDeviceData() MOZ_OVERRIDE;
  92
  93   virtual gfx::SurfaceFormat GetFormat() const;
  94
  95   virtual gfx::IntSize GetSize() const MOZ_OVERRIDE { return mSize; }
  96
  97   virtual LayerRenderState GetRenderState() MOZ_OVERRIDE;
  98
  99   virtual NewTextureSource* GetTextureSources() MOZ_OVERRIDE
 100   {
 101     return mTextureSource;
 102   }
 103
 104   virtual already_AddRefed<gfxImageSurface> GetAsSurface() MOZ_OVERRIDE;
 105
 106   bool IsValid() const;
 107
 108 #ifdef MOZ_LAYERS_HAVE_LOG
 109   virtual const char* Name() { return "GrallocTextureHostOGL"; }
 110 #endif
 111
 112 private:
 113   GrallocBufferActor* mGrallocActor;
 114   RefPtr<GrallocTextureSourceOGL> mTextureSource;
 115   gfx::IntSize mSize; // See comment in textureClientOGL.h
 116 };
 117
 118 } // namespace layers
 119 } // namespace mozilla
 120
 121 #endif
 122 #endif