widget/InProcessCompositorWidget.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef mozilla_widget_InProcessCompositorWidget_h__
   6 #define mozilla_widget_InProcessCompositorWidget_h__
   7
   8 #include "CompositorWidget.h"
   9
  10 namespace mozilla {
  11 namespace widget {
  12
  13 // This version of CompositorWidget implements a wrapper around
  14 // nsBaseWidget.
  15 class InProcessCompositorWidget : public CompositorWidget {
  16  public:
  17   explicit InProcessCompositorWidget(const layers::CompositorOptions& aOptions,
  18                                      nsBaseWidget* aWidget);
  19
  20   virtual bool PreRender(WidgetRenderingContext* aManager) override;
  21   virtual void PostRender(WidgetRenderingContext* aManager) override;
  22   virtual RefPtr<layers::NativeLayerRoot> GetNativeLayerRoot() override;
  23   virtual already_AddRefed<gfx::DrawTarget> StartRemoteDrawing() override;
  24   virtual already_AddRefed<gfx::DrawTarget> StartRemoteDrawingInRegion(
  25       const LayoutDeviceIntRegion& aInvalidRegion,
  26       layers::BufferMode* aBufferMode) override;
  27   virtual void EndRemoteDrawing() override;
  28   virtual void EndRemoteDrawingInRegion(
  29       gfx::DrawTarget* aDrawTarget,
  30       const LayoutDeviceIntRegion& aInvalidRegion) override;
  31   virtual void CleanupRemoteDrawing() override;
  32   virtual void CleanupWindowEffects() override;
  33   virtual bool InitCompositor(layers::Compositor* aCompositor) override;
  34   virtual LayoutDeviceIntSize GetClientSize() override;
  35   virtual uint32_t GetGLFrameBufferFormat() override;
  36   virtual void ObserveVsync(VsyncObserver* aObserver) override;
  37   virtual uintptr_t GetWidgetKey() override;
  38
  39   // If you can override this method, inherit from CompositorWidget instead.
  40   nsIWidget* RealWidget() override;
  41
  42  protected:
  43   nsBaseWidget* mWidget;
  44   // Bug 1679368: Maintain an additional widget pointer, constant, and
  45   // function for sanity checking while we chase a crash.
  46   static const char* CANARY_VALUE;
  47   const char* mCanary;
  48   nsBaseWidget* mWidgetSanity;
  49   void CheckWidgetSanity();
  50 };
  51
  52 }  // namespace widget
  53 }  // namespace mozilla
  54
  55 #endif