void meta_compositor_manage (MetaCompositor *compositor) { MetaDisplay *display = compositor->display; Display *xdisplay = display->xdisplay; MetaScreen *screen = display->screen; Window xwin = 0; gint width, height; meta_screen_set_cm_selection (display->screen); if (meta_is_wayland_compositor ()) { MetaWaylandCompositor *wayland_compositor = meta_wayland_compositor_get_default (); compositor->stage = meta_stage_new (); wayland_compositor->stage = compositor->stage; meta_screen_get_size (screen, &width, &height); clutter_actor_set_size (compositor->stage, width, height); clutter_actor_show (compositor->stage); } else { compositor->stage = clutter_stage_new (); meta_screen_get_size (screen, &width, &height); clutter_actor_realize (compositor->stage); xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (compositor->stage)); XResizeWindow (xdisplay, xwin, width, height); { MetaBackendX11 *backend = META_BACKEND_X11 (meta_get_backend ()); Display *backend_xdisplay = meta_backend_x11_get_xdisplay (backend); unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 }; XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits }; XISetMask (mask.mask, XI_KeyPress); XISetMask (mask.mask, XI_KeyRelease); XISetMask (mask.mask, XI_ButtonPress); XISetMask (mask.mask, XI_ButtonRelease); XISetMask (mask.mask, XI_Enter); XISetMask (mask.mask, XI_Leave); XISetMask (mask.mask, XI_FocusIn); XISetMask (mask.mask, XI_FocusOut); XISetMask (mask.mask, XI_Motion); XIClearMask (mask.mask, XI_TouchBegin); XIClearMask (mask.mask, XI_TouchEnd); XIClearMask (mask.mask, XI_TouchUpdate); XISelectEvents (backend_xdisplay, xwin, &mask, 1); } } /* We use connect_after() here to accomodate code in GNOME Shell that, * when benchmarking drawing performance, connects to ::after-paint * and calls glFinish(). The timing information from that will be * more accurate if we hold off until that completes before we signal * apps to begin drawing the next frame. If there are no other * connections to ::after-paint, connect() vs. connect_after() doesn't * matter. */ g_signal_connect_after (CLUTTER_STAGE (compositor->stage), "after-paint", G_CALLBACK (after_stage_paint), compositor); clutter_stage_set_sync_delay (CLUTTER_STAGE (compositor->stage), META_SYNC_DELAY); compositor->window_group = meta_window_group_new (screen); compositor->top_window_group = meta_window_group_new (screen); clutter_actor_add_child (compositor->stage, compositor->window_group); clutter_actor_add_child (compositor->stage, compositor->top_window_group); if (meta_is_wayland_compositor ()) { /* NB: When running as a wayland compositor we don't need an X * composite overlay window, and we don't need to play any input * region tricks to redirect events into clutter. */ compositor->output = None; } else { compositor->output = screen->composite_overlay_window; XReparentWindow (xdisplay, xwin, compositor->output, 0, 0); meta_empty_stage_input_region (screen); /* Make sure there isn't any left-over output shape on the * overlay window by setting the whole screen to be an * output region. * * Note: there doesn't seem to be any real chance of that * because the X server will destroy the overlay window * when the last client using it exits. */ XFixesSetWindowShapeRegion (xdisplay, compositor->output, ShapeBounding, 0, 0, None); /* Map overlay window before redirecting windows offscreen so we catch their * contents until we show the stage. */ XMapWindow (xdisplay, compositor->output); } redirect_windows (display->screen); compositor->plugin_mgr = meta_plugin_manager_new (compositor); }
void meta_compositor_manage (MetaCompositor *compositor) { MetaDisplay *display = compositor->display; Display *xdisplay = display->xdisplay; MetaScreen *screen = display->screen; MetaBackend *backend = meta_get_backend (); meta_screen_set_cm_selection (display->screen); compositor->stage = meta_backend_get_stage (backend); /* We use connect_after() here to accomodate code in GNOME Shell that, * when benchmarking drawing performance, connects to ::after-paint * and calls glFinish(). The timing information from that will be * more accurate if we hold off until that completes before we signal * apps to begin drawing the next frame. If there are no other * connections to ::after-paint, connect() vs. connect_after() doesn't * matter. */ g_signal_connect_after (CLUTTER_STAGE (compositor->stage), "after-paint", G_CALLBACK (after_stage_paint), compositor); clutter_stage_set_sync_delay (CLUTTER_STAGE (compositor->stage), META_SYNC_DELAY); compositor->window_group = meta_window_group_new (screen); compositor->top_window_group = meta_window_group_new (screen); compositor->feedback_group = meta_window_group_new (screen); clutter_actor_add_child (compositor->stage, compositor->window_group); clutter_actor_add_child (compositor->stage, compositor->top_window_group); clutter_actor_add_child (compositor->stage, compositor->feedback_group); if (meta_is_wayland_compositor ()) { /* NB: When running as a wayland compositor we don't need an X * composite overlay window, and we don't need to play any input * region tricks to redirect events into clutter. */ compositor->output = None; } else { Window xwin; compositor->output = screen->composite_overlay_window; xwin = meta_backend_x11_get_xwindow (META_BACKEND_X11 (backend)); XReparentWindow (xdisplay, xwin, compositor->output, 0, 0); meta_empty_stage_input_region (screen); /* Make sure there isn't any left-over output shape on the * overlay window by setting the whole screen to be an * output region. * * Note: there doesn't seem to be any real chance of that * because the X server will destroy the overlay window * when the last client using it exits. */ XFixesSetWindowShapeRegion (xdisplay, compositor->output, ShapeBounding, 0, 0, None); /* Map overlay window before redirecting windows offscreen so we catch their * contents until we show the stage. */ XMapWindow (xdisplay, compositor->output); compositor->have_x11_sync_object = meta_sync_ring_init (xdisplay); } redirect_windows (display->screen); compositor->plugin_mgr = meta_plugin_manager_new (compositor); }
void meta_compositor_manage_screen (MetaCompositor *compositor, MetaScreen *screen) { MetaCompScreen *info; MetaDisplay *display = meta_screen_get_display (screen); Display *xdisplay = meta_display_get_xdisplay (display); int screen_number = meta_screen_get_screen_number (screen); Window xroot = meta_screen_get_xroot (screen); Window xwin; gint width, height; XWindowAttributes attr; long event_mask; guint n_retries; guint max_retries; /* Check if the screen is already managed */ if (meta_screen_get_compositor_data (screen)) return; if (meta_get_replace_current_wm ()) max_retries = 5; else max_retries = 1; n_retries = 0; /* Some compositors (like old versions of Muffin) might not properly unredirect * subwindows before destroying the WM selection window; so we wait a while * for such a compositor to exit before giving up. */ while (TRUE) { meta_error_trap_push_with_return (display); XCompositeRedirectSubwindows (xdisplay, xroot, CompositeRedirectManual); XSync (xdisplay, FALSE); if (!meta_error_trap_pop_with_return (display)) break; if (n_retries == max_retries) { /* This probably means that a non-WM compositor like xcompmgr is running; * we have no way to get it to exit */ meta_fatal (_("Another compositing manager is already running on screen %i on display \"%s\"."), screen_number, display->name); } n_retries++; g_usleep (G_USEC_PER_SEC); } info = g_new0 (MetaCompScreen, 1); /* * We use an empty input region for Clutter as a default because that allows * the user to interact with all the windows displayed on the screen. * We have to initialize info->pending_input_region to an empty region explicitly, * because None value is used to mean that the whole screen is an input region. */ info->pending_input_region = XFixesCreateRegion (xdisplay, NULL, 0); info->screen = screen; meta_screen_set_compositor_data (screen, info); info->output = None; info->windows = NULL; meta_screen_set_cm_selection (screen); info->stage = clutter_stage_new (); meta_screen_get_size (screen, &width, &height); clutter_actor_realize (info->stage); xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage)); XResizeWindow (xdisplay, xwin, width, height); event_mask = FocusChangeMask | ExposureMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask | PropertyChangeMask | ButtonPressMask | ButtonReleaseMask | KeyPressMask | KeyReleaseMask | StructureNotifyMask; if (XGetWindowAttributes (xdisplay, xwin, &attr)) { event_mask |= attr.your_event_mask; } XSelectInput (xdisplay, xwin, event_mask); info->window_group = meta_window_group_new (screen); info->background_actor = meta_background_actor_new_for_screen (screen); info->bottom_window_group = clutter_group_new(); info->overlay_group = clutter_group_new (); info->top_window_group = meta_window_group_new (screen); info->hidden_group = clutter_group_new (); clutter_container_add (CLUTTER_CONTAINER (info->window_group), info->background_actor, NULL); clutter_container_add (CLUTTER_CONTAINER (info->stage), info->window_group, info->overlay_group, info->hidden_group, NULL); clutter_actor_hide (info->hidden_group); info->plugin_mgr = meta_plugin_manager_get (screen); meta_plugin_manager_initialize (info->plugin_mgr); /* * Delay the creation of the overlay window as long as we can, to avoid * blanking out the screen. This means that during the plugin loading, the * overlay window is not accessible; if the plugin needs to access it * directly, it should hook into the "show" signal on stage, and do * its stuff there. */ info->output = get_output_window (screen); XReparentWindow (xdisplay, xwin, info->output, 0, 0); /* Make sure there isn't any left-over output shape on the * overlay window by setting the whole screen to be an * output region. * * Note: there doesn't seem to be any real chance of that * because the X server will destroy the overlay window * when the last client using it exits. */ XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None); do_set_stage_input_region (screen, info->pending_input_region); if (info->pending_input_region != None) { XFixesDestroyRegion (xdisplay, info->pending_input_region); info->pending_input_region = None; } clutter_actor_show (info->overlay_group); clutter_actor_show (info->stage); }