widget/InProcessCompositorWidget.h
author Jan de Mooij <jdemooij@mozilla.com>
Sat, 12 Jan 2019 10:50:04 +0000
changeset 453631 cfa1c48c717048f00eb4811b5719cd716eb1e5b3
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1518753 part 5 - Stop using JSProtoKey for initial shapes. r=tcampbell I added this optimization in bug 1299107 to share more shapes across compartments. Unfortunately this doesn't play well with same-compartment realms (ICs can misbehave) because it relies on compartments being isolated from each other. I think we should remove this optimization: * Fixing the IC issue is impossible without deoptimizing everything. * I added it mainly for chrome globals. The shared-JSM-global work has eliminated the need for this there. * Same-compartment realms win memory back by eliminating CCWs etc. * It's quite a lot of complicated code. Differential Revision: https://phabricator.services.mozilla.com/D16170

/* 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_widget_InProcessCompositorWidget_h__
#define mozilla_widget_InProcessCompositorWidget_h__

#include "CompositorWidget.h"

namespace mozilla {
namespace widget {

// This version of CompositorWidget implements a wrapper around
// nsBaseWidget.
class InProcessCompositorWidget : public CompositorWidget {
 public:
  explicit InProcessCompositorWidget(const layers::CompositorOptions& aOptions,
                                     nsBaseWidget* aWidget);

  virtual bool PreRender(WidgetRenderingContext* aManager) override;
  virtual void PostRender(WidgetRenderingContext* aManager) override;
  virtual void DrawWindowUnderlay(WidgetRenderingContext* aContext,
                                  LayoutDeviceIntRect aRect) override;
  virtual void DrawWindowOverlay(WidgetRenderingContext* aContext,
                                 LayoutDeviceIntRect aRect) override;
  virtual already_AddRefed<gfx::DrawTarget> StartRemoteDrawing() override;
  virtual already_AddRefed<gfx::DrawTarget> StartRemoteDrawingInRegion(
      LayoutDeviceIntRegion& aInvalidRegion,
      layers::BufferMode* aBufferMode) override;
  virtual void EndRemoteDrawing() override;
  virtual void EndRemoteDrawingInRegion(
      gfx::DrawTarget* aDrawTarget,
      LayoutDeviceIntRegion& aInvalidRegion) override;
  virtual void CleanupRemoteDrawing() override;
  virtual void CleanupWindowEffects() override;
  virtual bool InitCompositor(layers::Compositor* aCompositor) override;
  virtual LayoutDeviceIntSize GetClientSize() override;
  virtual uint32_t GetGLFrameBufferFormat() override;
  virtual void ObserveVsync(VsyncObserver* aObserver) override;
  virtual uintptr_t GetWidgetKey() override;

  // If you can override this method, inherit from CompositorWidget instead.
  nsIWidget* RealWidget() override;

 protected:
  nsBaseWidget* mWidget;
};

}  // namespace widget
}  // namespace mozilla

#endif