The Tor Browser: gfx/layers/basic/MacIOSurfaceTextureHostBasic.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_MACIOSURFACETEXTUREHOST_BASIC_H

     7 #define MOZILLA_GFX_MACIOSURFACETEXTUREHOST_BASIC_H

     9 #include "mozilla/layers/TextureHostBasic.h"

    11 class MacIOSurface;

    13 namespace mozilla {

    14 namespace layers {

    16 class BasicCompositor;

    18 /**

    19  * A texture source meant for use with BasicCompositor.

    20  *

    21  * It does not own any GL texture, and attaches its shared handle to one of

    22  * the compositor's temporary textures when binding.

    23  */

    24 class MacIOSurfaceTextureSourceBasic

    25   : public TextureSourceBasic,

    26     public NewTextureSource

    27 {

    28 public:

    29   MacIOSurfaceTextureSourceBasic(BasicCompositor* aCompositor,

    30                                  MacIOSurface* aSurface);

    31   virtual ~MacIOSurfaceTextureSourceBasic();

    33   virtual TextureSourceBasic* AsSourceBasic() MOZ_OVERRIDE { return this; }

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

    36   virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE;

    37   virtual gfx::SourceSurface* GetSurface(gfx::DrawTarget* aTarget) MOZ_OVERRIDE;

    39   virtual void DeallocateDeviceData() MOZ_OVERRIDE { }

    41   virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;

    43 protected:

    44   BasicCompositor* mCompositor;

    45   RefPtr<MacIOSurface> mSurface;

    46   RefPtr<gfx::SourceSurface> mSourceSurface;

    47 };

    49 /**

    50  * A TextureHost for shared MacIOSurface

    51  *

    52  * Most of the logic actually happens in MacIOSurfaceTextureSourceBasic.

    53  */

    54 class MacIOSurfaceTextureHostBasic : public TextureHost

    55 {

    56 public:

    57   MacIOSurfaceTextureHostBasic(TextureFlags aFlags,

    58                                const SurfaceDescriptorMacIOSurface& aDescriptor);

    60   virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;

    62   virtual bool Lock() MOZ_OVERRIDE;

    64   virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE;

    66   virtual NewTextureSource* GetTextureSources() MOZ_OVERRIDE

    67   {

    68     return mTextureSource;

    69   }

    71   virtual TemporaryRef<gfx::DataSourceSurface> GetAsSurface() MOZ_OVERRIDE

    72   {

    73     return nullptr; // XXX - implement this (for MOZ_DUMP_PAINTING)

    74   }

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

    78 #ifdef MOZ_LAYERS_HAVE_LOG

    79   virtual const char* Name() { return "MacIOSurfaceTextureHostBasic"; }

    80 #endif

    82 protected:

    83   BasicCompositor* mCompositor;

    84   RefPtr<MacIOSurfaceTextureSourceBasic> mTextureSource;

    85   RefPtr<MacIOSurface> mSurface;

    86 };

    88 }

    89 }

    91 #endif // MOZILLA_GFX_MACIOSURFACETEXTUREHOSTOGL_BASIC_H

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