The Tor Browser: gfx/layers/opengl/GrallocTextureHost.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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/. */

     6 #ifndef MOZILLA_GFX_GRALLOCTEXTUREHOST_H

     7 #define MOZILLA_GFX_GRALLOCTEXTUREHOST_H

     8 #ifdef MOZ_WIDGET_GONK

    10 #include "mozilla/layers/TextureHostOGL.h"

    11 #include "mozilla/layers/ShadowLayerUtilsGralloc.h"

    12 #include <ui/GraphicBuffer.h>

    14 namespace mozilla {

    15 namespace layers {

    17 class GrallocTextureHostOGL;

    19 class GrallocTextureSourceOGL : public NewTextureSource

    20                               , public TextureSourceOGL

    21 {

    22 public:

    23   friend class GrallocTextureHostOGL;

    25   GrallocTextureSourceOGL(CompositorOGL* aCompositor,

    26                           android::GraphicBuffer* aGraphicBuffer,

    27                           gfx::SurfaceFormat aFormat);

    29   virtual ~GrallocTextureSourceOGL();

    31   virtual bool IsValid() const MOZ_OVERRIDE;

    33   virtual void BindTexture(GLenum aTextureUnit, gfx::Filter aFilter) MOZ_OVERRIDE;

    35   virtual gfx::IntSize GetSize() const MOZ_OVERRIDE;

    37   virtual TextureSourceOGL* AsSourceOGL() MOZ_OVERRIDE { return this; }

    39   virtual GLenum GetTextureTarget() const MOZ_OVERRIDE;

    41   virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE { return mFormat; }

    43   virtual GLenum GetWrapMode() const MOZ_OVERRIDE

    44   {

    45     return LOCAL_GL_CLAMP_TO_EDGE;

    46   }

    48   virtual void SetCompositableBackendSpecificData(CompositableBackendSpecificData* aBackendData) MOZ_OVERRIDE;

    50   void DeallocateDeviceData();

    52   gl::GLContext* gl() const;

    54   virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;

    56   void ForgetBuffer()

    57   {

    58     mGraphicBuffer = nullptr;

    59   }

    61   TemporaryRef<gfx::DataSourceSurface> GetAsSurface();

    63   GLuint GetGLTexture();

    65   void Lock();

    67 protected:

    68   CompositorOGL* mCompositor;

    69   android::sp<android::GraphicBuffer> mGraphicBuffer;

    70   EGLImage mEGLImage;

    71   GLuint mTexture;

    72   gfx::SurfaceFormat mFormat;

    73   bool mNeedsReset;

    74 };

    76 class GrallocTextureHostOGL : public TextureHost

    77 #if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17

    78                             , public TextureHostOGL

    79 #endif

    80 {

    81   friend class GrallocBufferActor;

    82 public:

    83   GrallocTextureHostOGL(TextureFlags aFlags,

    84                         const NewSurfaceDescriptorGralloc& aDescriptor);

    86   virtual ~GrallocTextureHostOGL();

    88   virtual void Updated(const nsIntRegion* aRegion) MOZ_OVERRIDE {}

    90   virtual bool Lock() MOZ_OVERRIDE;

    92   virtual void Unlock() MOZ_OVERRIDE;

    94   virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;

    96   virtual void DeallocateSharedData() MOZ_OVERRIDE;

    98   virtual void ForgetSharedData() MOZ_OVERRIDE;

   100   virtual void DeallocateDeviceData() MOZ_OVERRIDE;

   102   virtual gfx::SurfaceFormat GetFormat() const;

   104   virtual gfx::IntSize GetSize() const MOZ_OVERRIDE { return mSize; }

   106   virtual LayerRenderState GetRenderState() MOZ_OVERRIDE;

   108   virtual NewTextureSource* GetTextureSources() MOZ_OVERRIDE

   109   {

   110     return mTextureSource;

   111   }

   113 #if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17

   114   virtual TextureHostOGL* AsHostOGL() MOZ_OVERRIDE

   115   {

   116     return this;

   117   }

   118 #endif

   120   virtual TemporaryRef<gfx::DataSourceSurface> GetAsSurface() MOZ_OVERRIDE;

   122   virtual void SetCompositableBackendSpecificData(CompositableBackendSpecificData* aBackendData) MOZ_OVERRIDE;

   124   bool IsValid() const;

   126   virtual const char* Name() MOZ_OVERRIDE { return "GrallocTextureHostOGL"; }

   128   // Forget buffer actor. Used only for hacky fix for bug 966446.

   129   virtual void ForgetBufferActor()

   130   {

   131     mGrallocActor = nullptr;

   132   }

   134 private:

   135   GrallocBufferActor* mGrallocActor;

   136   RefPtr<GrallocTextureSourceOGL> mTextureSource;

   137   gfx::IntSize mSize; // See comment in textureClientOGL.h

   138 };

   140 } // namespace layers

   141 } // namespace mozilla

   143 #endif

   144 #endif

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