gecko-dev/widget/InProcessCompositorWidget.h
Lee Salzman 6d0dfe44e3 Bug 1690216 - Clarify that StartRemoteDrawingInRegion does not actually modify the region. r=mattwoodrow
It caused us substantial confusion investigating this bug under the belief that
StartRemoteDrawingInRegion may have been modifying the dirty region. None of our
existing widget code anymore uses the API in this way, so it makes sense to just
force this dirty region to be const so that we no longer support the assumption
and alleviate confusion in the future about how our widget code actually behaves.

Depends on D106246

Differential Revision: https://phabricator.services.mozilla.com/D106247
2021-02-24 18:34:52 +00:00

50 lines
1.9 KiB
C++

/* 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 RefPtr<layers::NativeLayerRoot> GetNativeLayerRoot() override;
virtual already_AddRefed<gfx::DrawTarget> StartRemoteDrawing() override;
virtual already_AddRefed<gfx::DrawTarget> StartRemoteDrawingInRegion(
const LayoutDeviceIntRegion& aInvalidRegion,
layers::BufferMode* aBufferMode) override;
virtual void EndRemoteDrawing() override;
virtual void EndRemoteDrawingInRegion(
gfx::DrawTarget* aDrawTarget,
const 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