forked from mirrors/gecko-dev
e86924571a
Depends on D169905 Differential Revision: https://phabricator.services.mozilla.com/D169906
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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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 _MOZILLA_WIDGET_GTK_WINDOW_SURFACE_PROVIDER_H
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#define _MOZILLA_WIDGET_GTK_WINDOW_SURFACE_PROVIDER_H
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#include <gdk/gdk.h>
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Types.h"
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#include "mozilla/layers/LayersTypes.h"
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#include "mozilla/widget/WindowSurface.h"
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#include "Units.h"
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#include "mozilla/ScopeExit.h"
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#ifdef MOZ_X11
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# include <X11/Xlib.h> // for Window, Display, Visual, etc.
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# include "X11UndefineNone.h"
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#endif
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class nsWindow;
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namespace mozilla {
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namespace widget {
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class GtkCompositorWidget;
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/*
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* Holds the logic for creating WindowSurface's for a GTK nsWindow.
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* The main purpose of this class is to allow sharing of logic between
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* nsWindow and GtkCompositorWidget, for when OMTC is enabled or disabled.
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*/
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class WindowSurfaceProvider final {
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public:
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WindowSurfaceProvider();
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~WindowSurfaceProvider() = default;
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/**
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* Initializes the WindowSurfaceProvider by giving it the window
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* handle and display to attach to. WindowSurfaceProvider doesn't
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* own the Display, Window, etc, and they must continue to exist
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* while WindowSurfaceProvider is used.
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*/
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#ifdef MOZ_WAYLAND
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void Initialize(RefPtr<nsWindow> aWidget);
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void Initialize(GtkCompositorWidget* aCompositorWidget);
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#endif
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#ifdef MOZ_X11
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void Initialize(Window aWindow, Visual* aVisual, int aDepth, bool aIsShaped);
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#endif
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/**
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* Releases any surfaces created by this provider.
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* This is used by GtkCompositorWidget to get rid
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* of resources.
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*/
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void CleanupResources();
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already_AddRefed<gfx::DrawTarget> StartRemoteDrawingInRegion(
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const LayoutDeviceIntRegion& aInvalidRegion,
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layers::BufferMode* aBufferMode);
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void EndRemoteDrawingInRegion(gfx::DrawTarget* aDrawTarget,
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const LayoutDeviceIntRegion& aInvalidRegion);
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private:
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RefPtr<WindowSurface> CreateWindowSurface();
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void CleanupWindowSurface();
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RefPtr<WindowSurface> mWindowSurface;
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/* While CleanupResources() can be called from Main thread when nsWindow is
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* destroyed/hidden, StartRemoteDrawingInRegion()/EndRemoteDrawingInRegion()
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* is called from Compositor thread during rendering.
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*
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* As nsWindow CleanupResources() call comes from Gtk/X11 we can't synchronize
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* that with WebRender so we use lock to synchronize the access.
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*/
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mozilla::Mutex mMutex MOZ_UNANNOTATED;
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// WindowSurface needs to be re-created as underlying window was changed.
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mozilla::Atomic<bool> mWindowSurfaceValid;
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#ifdef MOZ_WAYLAND
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RefPtr<nsWindow> mWidget;
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// WindowSurfaceProvider is owned by GtkCompositorWidget so we don't need
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// to reference it.
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GtkCompositorWidget* mCompositorWidget = nullptr;
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#endif
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#ifdef MOZ_X11
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bool mIsShaped;
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int mXDepth;
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Window mXWindow;
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Visual* mXVisual;
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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 // _MOZILLA_WIDGET_GTK_WINDOW_SURFACE_PROVIDER_H
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