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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 widget_gtk_GtkCompositorWidget_h
#define widget_gtk_GtkCompositorWidget_h
#include "GLDefs.h"
#include "mozilla/DataMutex.h"
#include "mozilla/widget/CompositorWidget.h"
#include "WindowSurfaceProvider.h"
class nsIWidget;
class nsWindow;
namespace mozilla {
namespace widget {
class PlatformCompositorWidgetDelegate : public CompositorWidgetDelegate {
public:
virtual void NotifyClientSizeChanged(
const LayoutDeviceIntSize& aClientSize) = 0;
// CompositorWidgetDelegate Overrides
PlatformCompositorWidgetDelegate* AsPlatformSpecificDelegate() override {
return this;
}
};
class GtkCompositorWidgetInitData;
class GtkCompositorWidget : public CompositorWidget,
public PlatformCompositorWidgetDelegate {
public:
GtkCompositorWidget(const GtkCompositorWidgetInitData& aInitData,
const layers::CompositorOptions& aOptions,
nsWindow* aWindow /* = nullptr*/);
~GtkCompositorWidget();
// CompositorWidget Overrides
already_AddRefed<gfx::DrawTarget> StartRemoteDrawing() override;
void EndRemoteDrawing() override;
already_AddRefed<gfx::DrawTarget> StartRemoteDrawingInRegion(
LayoutDeviceIntRegion& aInvalidRegion,
layers::BufferMode* aBufferMode) override;
void EndRemoteDrawingInRegion(
gfx::DrawTarget* aDrawTarget,
const LayoutDeviceIntRegion& aInvalidRegion) override;
uintptr_t GetWidgetKey() override;
LayoutDeviceIntSize GetClientSize() override;
nsIWidget* RealWidget() override;
GtkCompositorWidget* AsX11() override { return this; }
CompositorWidgetDelegate* AsDelegate() override { return this; }
EGLNativeWindowType GetEGLNativeWindow();
int32_t GetDepth();
void ClearBeforePaint(RefPtr<gfx::DrawTarget> aTarget,
const LayoutDeviceIntRegion& aRegion) override;
#if defined(MOZ_X11)
Display* XDisplay() const { return mXDisplay; }
Window XWindow() const { return mXWindow; }
#endif
#if defined(MOZ_WAYLAND)
void SetEGLNativeWindowSize(const LayoutDeviceIntSize& aEGLWindowSize);
#endif
// PlatformCompositorWidgetDelegate Overrides
void NotifyClientSizeChanged(const LayoutDeviceIntSize& aClientSize) override;
protected:
nsWindow* mWidget;
private:
// This field is written to on the main thread and read from on the compositor
// or renderer thread. During window resizing, this is subject to a (largely
// benign) read/write race, see bug 1665726. The DataMutex doesn't prevent the
// read/write race, but it does make it Not Undefined Behaviour, and also
// ensures we only ever use the old or new size, and not some weird synthesis
// of the two.
DataMutex<LayoutDeviceIntSize> mClientSize;
WindowSurfaceProvider mProvider;
#if defined(MOZ_X11)
Display* mXDisplay = {};
Window mXWindow = {};
#endif
int32_t mDepth = {};
};
} // namespace widget
} // namespace mozilla
#endif // widget_gtk_GtkCompositorWidget_h
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