mirror of
https://github.com/mozilla/gecko-dev.git
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134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef widget_gtk_GtkCompositorWidget_h
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#define widget_gtk_GtkCompositorWidget_h
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#include "GLDefs.h"
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#include "mozilla/DataMutex.h"
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#include "mozilla/widget/CompositorWidget.h"
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#include "WindowSurfaceProvider.h"
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class nsIWidget;
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class nsWindow;
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namespace mozilla {
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namespace layers {
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class NativeLayerRootWayland;
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} // namespace layers
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namespace widget {
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class PlatformCompositorWidgetDelegate : public CompositorWidgetDelegate {
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public:
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virtual void NotifyClientSizeChanged(
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const LayoutDeviceIntSize& aClientSize) = 0;
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virtual GtkCompositorWidget* AsGtkCompositorWidget() { return nullptr; };
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virtual void CleanupResources() = 0;
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virtual void SetRenderingSurface(const uintptr_t aXWindow,
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const bool aShaped) = 0;
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// CompositorWidgetDelegate Overrides
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PlatformCompositorWidgetDelegate* AsPlatformSpecificDelegate() override {
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return this;
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}
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};
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class GtkCompositorWidgetInitData;
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class GtkCompositorWidget : public CompositorWidget,
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public PlatformCompositorWidgetDelegate {
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public:
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GtkCompositorWidget(const GtkCompositorWidgetInitData& aInitData,
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const layers::CompositorOptions& aOptions,
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RefPtr<nsWindow> aWindow /* = nullptr*/);
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~GtkCompositorWidget();
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// CompositorWidget Overrides
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already_AddRefed<gfx::DrawTarget> StartRemoteDrawing() override;
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void EndRemoteDrawing() override;
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already_AddRefed<gfx::DrawTarget> StartRemoteDrawingInRegion(
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const LayoutDeviceIntRegion& aInvalidRegion,
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layers::BufferMode* aBufferMode) override;
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void EndRemoteDrawingInRegion(
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gfx::DrawTarget* aDrawTarget,
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const LayoutDeviceIntRegion& aInvalidRegion) override;
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LayoutDeviceIntSize GetClientSize() override;
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void RemoteLayoutSizeUpdated(const LayoutDeviceRect& aSize);
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nsIWidget* RealWidget() override;
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GtkCompositorWidget* AsGTK() override { return this; }
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CompositorWidgetDelegate* AsDelegate() override { return this; }
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EGLNativeWindowType GetEGLNativeWindow();
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LayoutDeviceIntRegion GetTransparentRegion() override;
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// Suspend rendering of this remote widget and clear all resources.
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// Can be used when underlying window is hidden/unmapped.
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void CleanupResources() override;
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// Resume rendering with to given aXWindow (X11) or nsWindow (Wayland).
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void SetRenderingSurface(const uintptr_t aXWindow,
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const bool aShaped) override;
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// If we fail to set window size (due to different screen scale or so)
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// we can't paint the frame by compositor.
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bool SetEGLNativeWindowSize(const LayoutDeviceIntSize& aEGLWindowSize);
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#if defined(MOZ_X11)
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Window XWindow() const { return mProvider.GetXWindow(); }
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#endif
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#if defined(MOZ_WAYLAND)
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RefPtr<mozilla::layers::NativeLayerRoot> GetNativeLayerRoot() override;
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#endif
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// PlatformCompositorWidgetDelegate Overrides
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void NotifyClientSizeChanged(const LayoutDeviceIntSize& aClientSize) override;
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GtkCompositorWidget* AsGtkCompositorWidget() override { return this; }
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private:
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#if defined(MOZ_WAYLAND)
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void ConfigureWaylandBackend();
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#endif
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#if defined(MOZ_X11)
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void ConfigureX11Backend(Window aXWindow, bool aShaped);
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#endif
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#ifdef MOZ_LOGGING
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bool IsPopup();
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#endif
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protected:
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RefPtr<nsWindow> mWidget;
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private:
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// This field is written to on the main thread and read from on the compositor
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// or renderer thread. During window resizing, this is subject to a (largely
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// benign) read/write race, see bug 1665726. The DataMutex doesn't prevent the
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// read/write race, but it does make it Not Undefined Behaviour, and also
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// ensures we only ever use the old or new size, and not some weird synthesis
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// of the two.
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DataMutex<LayoutDeviceIntSize> mClientSize;
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// Holds rendering resources
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WindowSurfaceProvider mProvider;
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#ifdef MOZ_WAYLAND
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RefPtr<mozilla::layers::NativeLayerRootWayland> mNativeLayerRoot;
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#endif
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};
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} // namespace widget
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} // namespace mozilla
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#endif // widget_gtk_GtkCompositorWidget_h
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