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       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_X11TEXTUREHOST__H
       7             : #define MOZILLA_GFX_X11TEXTUREHOST__H
       8             : 
       9             : #include "mozilla/layers/TextureHost.h"
      10             : #include "mozilla/layers/LayersSurfaces.h"
      11             : #include "mozilla/gfx/Types.h"
      12             : 
      13             : #include "gfxXlibSurface.h"
      14             : 
      15             : namespace mozilla {
      16             : namespace layers {
      17             : 
      18           0 : class X11TextureSource : public TextureSource
      19             : {
      20             : public:
      21             :   // Called when the underlying X surface has been changed.
      22             :   // Useful for determining whether to rebind a GLXPixmap to a texture.
      23             :   virtual void Updated() = 0;
      24             : 
      25           0 :   virtual const char* Name() const override { return "X11TextureSource"; }
      26             : };
      27             : 
      28             : // TextureHost for Xlib-backed TextureSources.
      29           0 : class X11TextureHost : public TextureHost
      30             : {
      31             : public:
      32             :   X11TextureHost(TextureFlags aFlags,
      33             :                  const SurfaceDescriptorX11& aDescriptor);
      34             : 
      35             :   virtual void SetTextureSourceProvider(TextureSourceProvider* aProvider) override;
      36             : 
      37             :   virtual bool Lock() override;
      38             : 
      39             :   virtual gfx::SurfaceFormat GetFormat() const override;
      40             : 
      41             :   virtual gfx::IntSize GetSize() const override;
      42             : 
      43           0 :   virtual bool BindTextureSource(CompositableTextureSourceRef& aTexture) override
      44             :   {
      45           0 :     aTexture = mTextureSource;
      46           0 :     return !!aTexture;
      47             :   }
      48             : 
      49             :   virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;
      50             : 
      51             : #ifdef MOZ_LAYERS_HAVE_LOG
      52           0 :   virtual const char* Name() override { return "X11TextureHost"; }
      53             : #endif
      54             : 
      55             : protected:
      56           0 :   virtual void UpdatedInternal(const nsIntRegion*) override
      57             :   {
      58           0 :     if (mTextureSource)
      59           0 :       mTextureSource->Updated();
      60           0 :   }
      61             : 
      62             :   RefPtr<Compositor> mCompositor;
      63             :   RefPtr<X11TextureSource> mTextureSource;
      64             :   RefPtr<gfxXlibSurface> mSurface;
      65             : };
      66             : 
      67             : } // namespace layers
      68             : } // namespace mozilla
      69             : 
      70             : #endif // MOZILLA_GFX_X11TEXTUREHOST__H