97f2c7c161
This commit adds basic screen casting and remote desktoping functionalty. This works by exposing two D-Bus API services: org.gnome.Mutter.ScreenCast and org.gnome.Mutter.RemoteDesktop. The remote desktop API is used to create remote desktop sessions. For each session, a D-Bus object is created, and an application can manage the session by sending messages to the session object. A remote desktop session the user to emit input events using the D-Bus methods on the session object. To get framebuffer content, the application should create an associated screen cast session. The screen cast API is used to create screen cast sessions. One can so far either create stand-alone screen cast sessions, or a screen cast session associated with a remote desktop session. A remote desktop associated screen cast session is managed by the remote desktop session. So far only remote desktop managed screen cast sessions are implemented. Each screen cast session may have one or more streams. A screen cast stream is a stream of buffers of some part of the compositor content. So far API exists for creating streams of monitors and windows, but only monitor streams are implemented. When a screen cast session is started, the one PipeWire stream is created for each screen cast stream created for the session. When this has happened, a PipeWireStreamAdded signal is emitted on the stream object, passing a unique identifier. The application may use this identifier to find the associated stream being advertised by the PipeWire daemon. The remote desktop and screen cast functionality must be explicitly be enabled at ./configure time by passing --enable-remote-desktop to ./configure. Doing this will build both screen cast and remote desktop support. To actually enable the screen casting and remote desktop, the user must enable the experimental feature. See org.gnome.mutter.experimental-features. https://bugzilla.gnome.org/show_bug.cgi?id=784199
179 lines
7.0 KiB
C
179 lines
7.0 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (C) 2014 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Written by:
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* Jasper St. Pierre <jstpierre@mecheye.net>
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*/
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#ifndef META_BACKEND_PRIVATE_H
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#define META_BACKEND_PRIVATE_H
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#include <glib-object.h>
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#include <xkbcommon/xkbcommon.h>
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#include <meta/meta-backend.h>
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#include <meta/meta-idle-monitor.h>
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#include "meta-cursor-renderer.h"
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#include "meta-monitor-manager-private.h"
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#include "meta-orientation-manager.h"
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#include "meta-input-settings-private.h"
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#include "backends/meta-egl.h"
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#include "backends/meta-pointer-constraint.h"
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#ifdef HAVE_REMOTE_DESKTOP
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#include "backends/meta-remote-desktop.h"
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#endif
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#include "backends/meta-renderer.h"
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#include "backends/meta-settings-private.h"
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#include "core/util-private.h"
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#define DEFAULT_XKB_RULES_FILE "evdev"
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#define DEFAULT_XKB_MODEL "pc105+inet"
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#define META_TYPE_BACKEND (meta_backend_get_type ())
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G_DECLARE_DERIVABLE_TYPE (MetaBackend, meta_backend, META, BACKEND, GObject)
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struct _MetaBackendClass
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{
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GObjectClass parent_class;
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ClutterBackend * (* create_clutter_backend) (MetaBackend *backend);
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void (* post_init) (MetaBackend *backend);
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MetaIdleMonitor * (* create_idle_monitor) (MetaBackend *backend,
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int device_id);
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MetaMonitorManager * (* create_monitor_manager) (MetaBackend *backend);
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MetaCursorRenderer * (* create_cursor_renderer) (MetaBackend *backend);
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MetaRenderer * (* create_renderer) (MetaBackend *backend);
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MetaInputSettings * (* create_input_settings) (MetaBackend *backend);
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gboolean (* grab_device) (MetaBackend *backend,
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int device_id,
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uint32_t timestamp);
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gboolean (* ungrab_device) (MetaBackend *backend,
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int device_id,
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uint32_t timestamp);
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void (* warp_pointer) (MetaBackend *backend,
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int x,
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int y);
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MetaLogicalMonitor * (* get_current_logical_monitor) (MetaBackend *backend);
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void (* set_keymap) (MetaBackend *backend,
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const char *layouts,
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const char *variants,
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const char *options);
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struct xkb_keymap * (* get_keymap) (MetaBackend *backend);
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xkb_layout_index_t (* get_keymap_layout_group) (MetaBackend *backend);
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void (* lock_layout_group) (MetaBackend *backend,
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guint idx);
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void (* update_screen_size) (MetaBackend *backend, int width, int height);
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void (* select_stage_events) (MetaBackend *backend);
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gboolean (* get_relative_motion_deltas) (MetaBackend *backend,
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const ClutterEvent *event,
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double *dx,
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double *dy,
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double *dx_unaccel,
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double *dy_unaccel);
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void (* set_numlock) (MetaBackend *backend,
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gboolean numlock_state);
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};
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void meta_init_backend (GType backend_gtype);
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ClutterBackend * meta_backend_get_clutter_backend (MetaBackend *backend);
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MetaIdleMonitor * meta_backend_get_idle_monitor (MetaBackend *backend,
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int device_id);
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void meta_backend_foreach_device_monitor (MetaBackend *backend,
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GFunc func,
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gpointer user_data);
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MetaMonitorManager * meta_backend_get_monitor_manager (MetaBackend *backend);
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MetaOrientationManager * meta_backend_get_orientation_manager (MetaBackend *backend);
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MetaCursorTracker * meta_backend_get_cursor_tracker (MetaBackend *backend);
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MetaCursorRenderer * meta_backend_get_cursor_renderer (MetaBackend *backend);
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MetaRenderer * meta_backend_get_renderer (MetaBackend *backend);
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MetaEgl * meta_backend_get_egl (MetaBackend *backend);
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MetaSettings * meta_backend_get_settings (MetaBackend *backend);
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#ifdef HAVE_REMOTE_DESKTOP
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MetaRemoteDesktop * meta_backend_get_remote_desktop (MetaBackend *backend);
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#endif
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gboolean meta_backend_grab_device (MetaBackend *backend,
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int device_id,
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uint32_t timestamp);
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gboolean meta_backend_ungrab_device (MetaBackend *backend,
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int device_id,
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uint32_t timestamp);
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void meta_backend_warp_pointer (MetaBackend *backend,
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int x,
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int y);
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MetaLogicalMonitor * meta_backend_get_current_logical_monitor (MetaBackend *backend);
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struct xkb_keymap * meta_backend_get_keymap (MetaBackend *backend);
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xkb_layout_index_t meta_backend_get_keymap_layout_group (MetaBackend *backend);
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void meta_backend_update_last_device (MetaBackend *backend,
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int device_id);
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gboolean meta_backend_get_relative_motion_deltas (MetaBackend *backend,
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const ClutterEvent *event,
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double *dx,
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double *dy,
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double *dx_unaccel,
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double *dy_unaccel);
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MetaPointerConstraint * meta_backend_get_client_pointer_constraint (MetaBackend *backend);
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void meta_backend_set_client_pointer_constraint (MetaBackend *backend,
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MetaPointerConstraint *constraint);
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ClutterBackend * meta_backend_get_clutter_backend (MetaBackend *backend);
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void meta_backend_monitors_changed (MetaBackend *backend);
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gboolean meta_is_stage_views_enabled (void);
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gboolean meta_is_stage_views_scaled (void);
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MetaInputSettings *meta_backend_get_input_settings (MetaBackend *backend);
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void meta_backend_notify_keymap_changed (MetaBackend *backend);
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void meta_backend_notify_keymap_layout_group_changed (MetaBackend *backend,
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unsigned int locked_group);
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void meta_backend_notify_ui_scaling_factor_changed (MetaBackend *backend);
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#endif /* META_BACKEND_PRIVATE_H */
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