gfx/layers/TextureWrapperImage.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef GFX_LAYERS_TEXTUREWRAPPINGIMAGE_H_
   8 #define GFX_LAYERS_TEXTUREWRAPPINGIMAGE_H_
   9
  10 #include "mozilla/RefPtr.h"
  11 #include "ImageContainer.h"
  12 #include "mozilla/layers/TextureClient.h"
  13
  14 namespace mozilla {
  15 namespace layers {
  16
  17 // Wraps a TextureClient into an Image. This may only be used on the main
  18 // thread, and only with TextureClients that support BorrowDrawTarget().
  19 class TextureWrapperImage final : public Image {
  20  public:
  21   TextureWrapperImage(TextureClient* aClient, const gfx::IntRect& aPictureRect);
  22   virtual ~TextureWrapperImage();
  23
  24   gfx::IntSize GetSize() const override;
  25   gfx::IntRect GetPictureRect() const override;
  26   already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;
  27   TextureClient* GetTextureClient(KnowsCompositor* aKnowsCompositor) override;
  28   void OnPrepareForwardToHost() override;
  29   void OnAbandonForwardToHost() override;
  30
  31  private:
  32   gfx::IntRect mPictureRect;
  33   RefPtr<TextureClient> mTextureClient;
  34 };
  35
  36 }  // namespace layers
  37 }  // namespace mozilla
  38
  39 #endif  // GFX_LAYERS_TEXTUREWRAPPINGIMAGE_H_