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89349d8182
This implements a mostly working native backend for Wayland. It can
be enabled via `gfx.webrender.compositor.force-enabled`.
The focus here was to get a basic structure in place while mini-
mising changes in shared code.
Known issues and limitations:
- No readback - this will likely require an internal compositor
again, as Wayland doesn't allow easily allow readback of the
composited image, at least not without asking for permission.
Alternatively, a new Wayland extension could be written for it.
- Frame-call related issues when using a compositor that optimizes
them (e.g. Gnome-Shell). This will be fixed in a follow-up, in
the mean time disabling `widget.wayland.opaque-region.enabled`
and `widget.wayland.vsync.enabled` works around the issues.
- Only works on Weston or very recent versions of Gnome-Shell, see
bug 1699754
Differential Revision: https://phabricator.services.mozilla.com/D111662
84 lines
3.1 KiB
C++
84 lines
3.1 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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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 __MOZ_CONTAINER_WAYLAND_H__
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#define __MOZ_CONTAINER_WAYLAND_H__
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#include <gtk/gtk.h>
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#include <functional>
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#include <vector>
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#include "mozilla/Mutex.h"
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/*
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* MozContainer
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*
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* This class serves three purposes in the nsIWidget implementation.
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*
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* - It provides objects to receive signals from GTK for events on native
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* windows.
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*
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* - It provides GdkWindow to draw content on Wayland or when Gtk+ renders
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* client side decorations to mShell.
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*/
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/* Workaround for bug at wayland-util.h,
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* present in wayland-devel < 1.12
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*/
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struct wl_surface;
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struct wl_subsurface;
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struct MozContainerWayland {
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struct wl_surface* surface;
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struct wl_subsurface* subsurface;
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int subsurface_dx, subsurface_dy;
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struct wl_egl_window* eglwindow;
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struct wl_callback* frame_callback_handler;
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struct wp_viewport* viewport;
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gboolean opaque_region_needs_updates;
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gboolean opaque_region_subtract_corners;
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gboolean opaque_region_used;
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gboolean surface_needs_clear;
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gboolean ready_to_draw;
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gboolean before_first_size_alloc;
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int buffer_scale;
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std::vector<std::function<void(void)>> initial_draw_cbs;
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// mozcontainer is used from Compositor and Rendering threads
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// so we need to control access to mozcontainer where wayland internals
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// are used directly.
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mozilla::Mutex* container_lock;
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};
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struct _MozContainer;
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struct _MozContainerClass;
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typedef struct _MozContainer MozContainer;
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typedef struct _MozContainerClass MozContainerClass;
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void moz_container_wayland_class_init(MozContainerClass* klass);
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void moz_container_wayland_init(MozContainerWayland* container);
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struct wl_surface* moz_container_wayland_surface_lock(MozContainer* container);
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void moz_container_wayland_surface_unlock(MozContainer* container,
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struct wl_surface** surface);
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struct wl_egl_window* moz_container_wayland_get_egl_window(
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MozContainer* container, double scale);
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gboolean moz_container_wayland_has_egl_window(MozContainer* container);
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gboolean moz_container_wayland_surface_needs_clear(MozContainer* container);
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void moz_container_wayland_egl_window_set_size(MozContainer* container,
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int width, int height);
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void moz_container_wayland_set_scale_factor(MozContainer* container);
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void moz_container_wayland_add_initial_draw_callback(
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MozContainer* container, const std::function<void(void)>& initial_draw_cb);
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wl_surface* moz_gtk_widget_get_wl_surface(GtkWidget* aWidget);
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void moz_container_wayland_update_opaque_region(MozContainer* container,
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bool aSubtractCorners);
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gboolean moz_container_wayland_can_draw(MozContainer* container);
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double moz_container_wayland_get_scale(MozContainer* container);
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struct wp_viewport* moz_container_wayland_get_viewport(MozContainer* container);
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#endif /* __MOZ_CONTAINER_WAYLAND_H__ */
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