/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef MOZILLA_GFX_X11TEXTUREHOST__H

#define MOZILLA_GFX_X11TEXTUREHOST__H

#include "mozilla/layers/TextureHost.h"

#include "mozilla/layers/LayersSurfaces.h"

#include "mozilla/gfx/Types.h"

#include "gfxXlibSurface.h"

namespace mozilla {

namespace layers {

class X11TextureSource : public TextureSource

{

public:

  // Called when the underlying X surface has been changed.

  // Useful for determining whether to rebind a GLXPixmap to a texture.

  virtual void Updated() = 0;

  virtual const char* Name() const override { return "X11TextureSource"; }

};

// TextureHost for Xlib-backed TextureSources.

class X11TextureHost : public TextureHost

{

public:

  X11TextureHost(TextureFlags aFlags,

                 const SurfaceDescriptorX11& aDescriptor);

  virtual void SetTextureSourceProvider(TextureSourceProvider* aProvider) override;

  virtual bool Lock() override;

  virtual gfx::SurfaceFormat GetFormat() const override;

  virtual gfx::IntSize GetSize() const override;

  virtual bool BindTextureSource(CompositableTextureSourceRef& aTexture) override

  {

    aTexture = mTextureSource;

    return !!aTexture;

  }

  virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;

#ifdef MOZ_LAYERS_HAVE_LOG

  virtual const char* Name() override { return "X11TextureHost"; }

#endif

protected:

  virtual void UpdatedInternal(const nsIntRegion*) override

  {

    if (mTextureSource)

      mTextureSource->Updated();

  }

  RefPtr<Compositor> mCompositor;

  RefPtr<X11TextureSource> mTextureSource;

  RefPtr<gfxXlibSurface> mSurface;

};

} // namespace layers

} // namespace mozilla

#endif // MOZILLA_GFX_X11TEXTUREHOST__H