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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
       2             :  *
       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 _MOZILLA_WIDGET_WINDOW_SURFACE_X11_SHM_H
       8             : #define _MOZILLA_WIDGET_WINDOW_SURFACE_X11_SHM_H
       9             : 
      10             : #ifdef MOZ_X11
      11             : 
      12             : #include "mozilla/widget/WindowSurface.h"
      13             : #include "nsShmImage.h"
      14             : 
      15             : namespace mozilla {
      16             : namespace widget {
      17             : 
      18           0 : class WindowSurfaceX11SHM : public WindowSurface {
      19             : public:
      20             :   WindowSurfaceX11SHM(Display* aDisplay, Drawable aWindow, Visual* aVisual,
      21             :                       unsigned int aDepth);
      22             : 
      23             :   already_AddRefed<gfx::DrawTarget> Lock(const LayoutDeviceIntRegion& aRegion) override;
      24             :   void Commit(const LayoutDeviceIntRegion& aInvalidRegion) override;
      25             : 
      26             : private:
      27             :   RefPtr<nsShmImage> mFrontImage;
      28             :   RefPtr<nsShmImage> mBackImage;
      29             : };
      30             : 
      31             : }  // namespace widget
      32             : }  // namespace mozilla
      33             : 
      34             : #endif // MOZ_X11
      35             : #endif // _MOZILLA_WIDGET_WINDOW_SURFACE_X11_SHM_H