TextureWrapperImage.h

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/* -*- 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 GFX_LAYERS_TEXTUREWRAPPINGIMAGE_H_

#define GFX_LAYERS_TEXTUREWRAPPINGIMAGE_H_

#include "mozilla/RefPtr.h"

#include "ImageContainer.h"

#include "mozilla/layers/TextureClient.h"

namespace mozilla {

namespace layers {

// Wraps a TextureClient into an Image. This may only be used on the main

// thread, and only with TextureClients that support BorrowDrawTarget().

class TextureWrapperImage final : public Image {

 public:

  TextureWrapperImage(TextureClient* aClient, const gfx::IntRect& aPictureRect);

  virtual ~TextureWrapperImage();

  gfx::IntSize GetSize() const override;

  gfx::IntRect GetPictureRect() const override;

  already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;

  TextureClient* GetTextureClient(KnowsCompositor* aKnowsCompositor) override;

  void OnPrepareForwardToHost() override;

  void OnAbandonForwardToHost() override;

 private:

  gfx::IntRect mPictureRect;

  RefPtr<TextureClient> mTextureClient;

};

}  // namespace layers

}  // namespace mozilla

#endif  // GFX_LAYERS_TEXTUREWRAPPINGIMAGE_H_