/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ /** * SECTION:meta-window-actor * @title: MetaWindowActor * @short_description: An actor representing a top-level window in the scene graph */ #include "config.h" #include #include #include #include "backends/meta-backend-private.h" #include "backends/meta-logical-monitor.h" #include "backends/meta-monitor-manager-private.h" #include "clutter/clutter-mutter.h" #include "clutter/x11/clutter-x11.h" #include "cogl/winsys/cogl-texture-pixmap-x11.h" #include "core/frame.h" #include "compositor/compositor-private.h" #include "compositor/meta-cullable.h" #include "compositor/meta-shaped-texture-private.h" #include "compositor/meta-surface-actor-x11.h" #include "compositor/meta-surface-actor.h" #include "compositor/meta-texture-rectangle.h" #include "compositor/meta-window-actor-private.h" #include "compositor/region-utils.h" #include "meta/display.h" #include "meta/meta-enum-types.h" #include "meta/meta-shadow-factory.h" #include "meta/meta-shaped-texture.h" #include "meta/meta-x11-errors.h" #include "meta/window.h" #include "x11/meta-x11-display-private.h" #ifdef HAVE_WAYLAND #include "compositor/meta-surface-actor-wayland.h" #include "wayland/meta-wayland-surface.h" #endif typedef enum { INITIALLY_FROZEN, DRAWING_FIRST_FRAME, EMITTED_FIRST_FRAME } FirstFrameState; struct _MetaWindowActorPrivate { MetaWindow *window; MetaCompositor *compositor; MetaSurfaceActor *surface; /* MetaShadowFactory only caches shadows that are actually in use; * to avoid unnecessary recomputation we do two things: 1) we store * both a focused and unfocused shadow for the window. If the window * doesn't have different focused and unfocused shadow parameters, * these will be the same. 2) when the shadow potentially changes we * don't immediately unreference the old shadow, we just flag it as * dirty and recompute it when we next need it (recompute_focused_shadow, * recompute_unfocused_shadow.) Because of our extraction of * size-invariant window shape, we'll often find that the new shadow * is the same as the old shadow. */ MetaShadow *focused_shadow; MetaShadow *unfocused_shadow; /* A region that matches the shape of the window, including frame bounds */ cairo_region_t *shape_region; /* The region we should clip to when painting the shadow */ cairo_region_t *shadow_clip; /* Extracted size-invariant shape used for shadows */ MetaWindowShape *shadow_shape; char * shadow_class; MetaShadowMode shadow_mode; guint send_frame_messages_timer; gint64 frame_drawn_time; guint repaint_scheduled_id; guint size_changed_id; /* * These need to be counters rather than flags, since more plugins * can implement same effect; the practicality of stacking effects * might be dubious, but we have to at least handle it correctly. */ gint minimize_in_progress; gint unminimize_in_progress; gint size_change_in_progress; gint map_in_progress; gint destroy_in_progress; /* List of FrameData for recent frames */ GList *frames; guint freeze_count; guint visible : 1; guint disposed : 1; /* If set, the client needs to be sent a _NET_WM_FRAME_DRAWN * client message for one or more messages in ->frames */ guint needs_frame_drawn : 1; guint repaint_scheduled : 1; guint needs_reshape : 1; guint recompute_focused_shadow : 1; guint recompute_unfocused_shadow : 1; guint needs_destroy : 1; guint updates_frozen : 1; guint first_frame_state : 2; /* FirstFrameState */ }; typedef struct _FrameData FrameData; /* Each time the application updates the sync request counter to a new even value * value, we queue a frame into the windows list of frames. Once we're painting * an update "in response" to the window, we fill in frame_counter with the * Cogl counter for that frame, and send _NET_WM_FRAME_DRAWN at the end of the * frame. _NET_WM_FRAME_TIMINGS is sent when we get a frame_complete callback. * * As an exception, if a window is completely obscured, we try to throttle drawning * to a slower frame rate. In this case, frame_counter stays -1 until * send_frame_message_timeout() runs, at which point we send both the * _NET_WM_FRAME_DRAWN and _NET_WM_FRAME_TIMINGS messages. */ struct _FrameData { guint64 sync_request_serial; int64_t frame_counter; gint64 frame_drawn_time; }; enum { FIRST_FRAME, EFFECTS_COMPLETED, LAST_SIGNAL }; static guint signals[LAST_SIGNAL] = { 0 }; enum { PROP_META_WINDOW = 1, PROP_SHADOW_MODE, PROP_SHADOW_CLASS }; static void meta_window_actor_dispose (GObject *object); static void meta_window_actor_finalize (GObject *object); static void meta_window_actor_constructed (GObject *object); static void meta_window_actor_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void meta_window_actor_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void meta_window_actor_paint (ClutterActor *actor); static gboolean meta_window_actor_get_paint_volume (ClutterActor *actor, ClutterPaintVolume *volume); static gboolean meta_window_actor_has_shadow (MetaWindowActor *self); static void meta_window_actor_handle_updates (MetaWindowActor *self); static void check_needs_reshape (MetaWindowActor *self); static void do_send_frame_drawn (MetaWindowActor *self, FrameData *frame); static void do_send_frame_timings (MetaWindowActor *self, FrameData *frame, gint refresh_interval, gint64 presentation_time); static void cullable_iface_init (MetaCullableInterface *iface); G_DEFINE_TYPE_WITH_CODE (MetaWindowActor, meta_window_actor, CLUTTER_TYPE_ACTOR, G_ADD_PRIVATE (MetaWindowActor) G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init)); static void frame_data_free (FrameData *frame) { g_slice_free (FrameData, frame); } static void meta_window_actor_class_init (MetaWindowActorClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass); GParamSpec *pspec; object_class->dispose = meta_window_actor_dispose; object_class->finalize = meta_window_actor_finalize; object_class->set_property = meta_window_actor_set_property; object_class->get_property = meta_window_actor_get_property; object_class->constructed = meta_window_actor_constructed; actor_class->paint = meta_window_actor_paint; actor_class->get_paint_volume = meta_window_actor_get_paint_volume; /** * MetaWindowActor::first-frame: * @actor: the #MetaWindowActor instance * * The ::first-frame signal will be emitted the first time a frame * of window contents has been drawn by the application and Mutter * has had the chance to drawn that frame to the screen. If the * window starts off initially hidden, obscured, or on on a * different workspace, the ::first-frame signal will be emitted * even though the user doesn't see the contents. * * MetaDisplay::window-created is a good place to connect to this * signal - at that point, the MetaWindowActor for the window * exists, but the window has reliably not yet been drawn. * Connecting to an existing window that has already been drawn to * the screen is not useful. */ signals[FIRST_FRAME] = g_signal_new ("first-frame", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 0); /** * MetaWindowActor::effects-completed: * @actor: the #MetaWindowActor instance * * The ::effects-completed signal will be emitted once all pending compositor * effects are completed. */ signals[EFFECTS_COMPLETED] = g_signal_new ("effects-completed", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 0); pspec = g_param_spec_object ("meta-window", "MetaWindow", "The displayed MetaWindow", META_TYPE_WINDOW, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY); g_object_class_install_property (object_class, PROP_META_WINDOW, pspec); pspec = g_param_spec_enum ("shadow-mode", "Shadow mode", "Decides when to paint shadows", META_TYPE_SHADOW_MODE, META_SHADOW_MODE_AUTO, G_PARAM_READWRITE); g_object_class_install_property (object_class, PROP_SHADOW_MODE, pspec); pspec = g_param_spec_string ("shadow-class", "Name of the shadow class for this window.", "NULL means to use the default shadow class for this window type", NULL, G_PARAM_READWRITE); g_object_class_install_property (object_class, PROP_SHADOW_CLASS, pspec); } static void meta_window_actor_init (MetaWindowActor *self) { MetaWindowActorPrivate *priv; priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, META_TYPE_WINDOW_ACTOR, MetaWindowActorPrivate); priv->shadow_class = NULL; } static void window_appears_focused_notify (MetaWindow *mw, GParamSpec *arg1, gpointer data) { clutter_actor_queue_redraw (CLUTTER_ACTOR (data)); } static void surface_size_changed (MetaSurfaceActor *actor, gpointer user_data) { MetaWindowActor *self = META_WINDOW_ACTOR (user_data); meta_window_actor_update_shape (self); } static void surface_repaint_scheduled (MetaSurfaceActor *actor, gpointer user_data) { MetaWindowActor *self = META_WINDOW_ACTOR (user_data); MetaWindowActorPrivate *priv = self->priv; priv->repaint_scheduled = TRUE; } static gboolean is_argb32 (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; /* assume we're argb until we get the window (because in practice we're drawing nothing, so we're fully transparent) */ if (priv->surface) return meta_surface_actor_is_argb32 (priv->surface); else return TRUE; } static gboolean is_non_opaque (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaWindow *window = priv->window; return is_argb32 (self) || (window->opacity != 0xFF); } static gboolean is_frozen (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; return priv->surface == NULL || priv->freeze_count > 0; } static void meta_window_actor_freeze (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->freeze_count == 0 && priv->surface) meta_surface_actor_set_frozen (priv->surface, TRUE); priv->freeze_count ++; } static void meta_window_actor_sync_thawed_state (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->first_frame_state == INITIALLY_FROZEN) priv->first_frame_state = DRAWING_FIRST_FRAME; if (priv->surface) meta_surface_actor_set_frozen (priv->surface, FALSE); /* We sometimes ignore moves and resizes on frozen windows */ meta_window_actor_sync_actor_geometry (self, FALSE); } static void meta_window_actor_thaw (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->freeze_count <= 0) g_error ("Error in freeze/thaw accounting"); priv->freeze_count--; if (priv->freeze_count > 0) return; /* We still might be frozen due to lack of a MetaSurfaceActor */ if (is_frozen (self)) return; meta_window_actor_sync_thawed_state (self); /* We do this now since we might be going right back into the * frozen state */ meta_window_actor_handle_updates (self); } static void set_surface (MetaWindowActor *self, MetaSurfaceActor *surface) { MetaWindowActorPrivate *priv = self->priv; if (priv->surface) { g_signal_handler_disconnect (priv->surface, priv->repaint_scheduled_id); g_signal_handler_disconnect (priv->surface, priv->size_changed_id); priv->repaint_scheduled_id = 0; clutter_actor_remove_child (CLUTTER_ACTOR (self), CLUTTER_ACTOR (priv->surface)); g_object_unref (priv->surface); } priv->surface = surface; if (priv->surface) { g_object_ref_sink (priv->surface); priv->repaint_scheduled_id = g_signal_connect (priv->surface, "repaint-scheduled", G_CALLBACK (surface_repaint_scheduled), self); priv->size_changed_id = g_signal_connect (priv->surface, "size-changed", G_CALLBACK (surface_size_changed), self); clutter_actor_add_child (CLUTTER_ACTOR (self), CLUTTER_ACTOR (priv->surface)); meta_window_actor_update_shape (self); if (is_frozen (self)) meta_surface_actor_set_frozen (priv->surface, TRUE); else meta_window_actor_sync_thawed_state (self); } } void meta_window_actor_update_surface (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaWindow *window = priv->window; MetaSurfaceActor *surface_actor; #ifdef HAVE_WAYLAND if (window->surface) surface_actor = meta_wayland_surface_get_actor (window->surface); else #endif if (!meta_is_wayland_compositor ()) surface_actor = meta_surface_actor_x11_new (window); else surface_actor = NULL; set_surface (self, surface_actor); } static void meta_window_actor_constructed (GObject *object) { MetaWindowActor *self = META_WINDOW_ACTOR (object); MetaWindowActorPrivate *priv = self->priv; MetaWindow *window = priv->window; priv->compositor = window->display->compositor; meta_window_actor_update_surface (self); meta_window_actor_update_opacity (self); /* Start off with an empty shape region to maintain the invariant * that it's always set */ priv->shape_region = cairo_region_create (); } static void meta_window_actor_dispose (GObject *object) { MetaWindowActor *self = META_WINDOW_ACTOR (object); MetaWindowActorPrivate *priv = self->priv; MetaCompositor *compositor = priv->compositor; if (priv->disposed) return; priv->disposed = TRUE; if (priv->send_frame_messages_timer != 0) { g_source_remove (priv->send_frame_messages_timer); priv->send_frame_messages_timer = 0; } g_clear_pointer (&priv->shape_region, cairo_region_destroy); g_clear_pointer (&priv->shadow_clip, cairo_region_destroy); g_clear_pointer (&priv->shadow_class, g_free); g_clear_pointer (&priv->focused_shadow, meta_shadow_unref); g_clear_pointer (&priv->unfocused_shadow, meta_shadow_unref); g_clear_pointer (&priv->shadow_shape, meta_window_shape_unref); compositor->windows = g_list_remove (compositor->windows, (gconstpointer) self); g_clear_object (&priv->window); set_surface (self, NULL); G_OBJECT_CLASS (meta_window_actor_parent_class)->dispose (object); } static void meta_window_actor_finalize (GObject *object) { MetaWindowActor *self = META_WINDOW_ACTOR (object); MetaWindowActorPrivate *priv = self->priv; g_list_free_full (priv->frames, (GDestroyNotify) frame_data_free); G_OBJECT_CLASS (meta_window_actor_parent_class)->finalize (object); } static void meta_window_actor_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { MetaWindowActor *self = META_WINDOW_ACTOR (object); MetaWindowActorPrivate *priv = self->priv; switch (prop_id) { case PROP_META_WINDOW: priv->window = g_value_dup_object (value); g_signal_connect_object (priv->window, "notify::appears-focused", G_CALLBACK (window_appears_focused_notify), self, 0); break; case PROP_SHADOW_MODE: { MetaShadowMode newv = g_value_get_enum (value); if (newv == priv->shadow_mode) return; priv->shadow_mode = newv; meta_window_actor_invalidate_shadow (self); } break; case PROP_SHADOW_CLASS: { const char *newv = g_value_get_string (value); if (g_strcmp0 (newv, priv->shadow_class) == 0) return; g_free (priv->shadow_class); priv->shadow_class = g_strdup (newv); meta_window_actor_invalidate_shadow (self); } break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void meta_window_actor_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { MetaWindowActorPrivate *priv = META_WINDOW_ACTOR (object)->priv; switch (prop_id) { case PROP_META_WINDOW: g_value_set_object (value, priv->window); break; case PROP_SHADOW_MODE: g_value_set_enum (value, priv->shadow_mode); break; case PROP_SHADOW_CLASS: g_value_set_string (value, priv->shadow_class); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static const char * meta_window_actor_get_shadow_class (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->shadow_class != NULL) return priv->shadow_class; else { MetaWindowType window_type = meta_window_get_window_type (priv->window); switch (window_type) { case META_WINDOW_DROPDOWN_MENU: case META_WINDOW_COMBO: return "dropdown-menu"; case META_WINDOW_POPUP_MENU: return "popup-menu"; default: { MetaFrameType frame_type = meta_window_get_frame_type (priv->window); return meta_frame_type_to_string (frame_type); } } } } static void meta_window_actor_get_shadow_params (MetaWindowActor *self, gboolean appears_focused, MetaShadowParams *params) { const char *shadow_class = meta_window_actor_get_shadow_class (self); meta_shadow_factory_get_params (meta_shadow_factory_get_default (), shadow_class, appears_focused, params); } void meta_window_actor_get_shape_bounds (MetaWindowActor *self, cairo_rectangle_int_t *bounds) { MetaWindowActorPrivate *priv = self->priv; cairo_region_get_extents (priv->shape_region, bounds); } static void meta_window_actor_get_shadow_bounds (MetaWindowActor *self, gboolean appears_focused, cairo_rectangle_int_t *bounds) { MetaWindowActorPrivate *priv = self->priv; MetaShadow *shadow = appears_focused ? priv->focused_shadow : priv->unfocused_shadow; cairo_rectangle_int_t shape_bounds; MetaShadowParams params; meta_window_actor_get_shape_bounds (self, &shape_bounds); meta_window_actor_get_shadow_params (self, appears_focused, ¶ms); meta_shadow_get_bounds (shadow, params.x_offset + shape_bounds.x, params.y_offset + shape_bounds.y, shape_bounds.width, shape_bounds.height, bounds); } /* If we have an ARGB32 window that we decorate with a frame, it's * probably something like a translucent terminal - something where * the alpha channel represents transparency rather than a shape. We * don't want to show the shadow through the translucent areas since * the shadow is wrong for translucent windows (it should be * translucent itself and colored), and not only that, will /look/ * horribly wrong - a misplaced big black blob. As a hack, what we * want to do is just draw the shadow as normal outside the frame, and * inside the frame draw no shadow. This is also not even close to * the right result, but looks OK. We also apply this approach to * windows set to be partially translucent with _NET_WM_WINDOW_OPACITY. */ static gboolean clip_shadow_under_window (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; return is_non_opaque (self) && priv->window->frame; } static void assign_frame_counter_to_frames (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaCompositor *compositor = priv->compositor; ClutterStage *stage = CLUTTER_STAGE (compositor->stage); GList *l; /* If the window is obscured, then we're expecting to deal with sending * frame messages in a timeout, rather than in this paint cycle. */ if (priv->send_frame_messages_timer != 0) return; for (l = priv->frames; l; l = l->next) { FrameData *frame = l->data; if (frame->frame_counter == -1) frame->frame_counter = clutter_stage_get_frame_counter (stage); } } static void meta_window_actor_paint (ClutterActor *actor) { MetaWindowActor *self = META_WINDOW_ACTOR (actor); MetaWindowActorPrivate *priv = self->priv; gboolean appears_focused = meta_window_appears_focused (priv->window); MetaShadow *shadow = appears_focused ? priv->focused_shadow : priv->unfocused_shadow; /* This window got damage when obscured; we set up a timer * to send frame completion events, but since we're drawing * the window now (for some other reason) cancel the timer * and send the completion events normally */ if (priv->send_frame_messages_timer != 0) { g_source_remove (priv->send_frame_messages_timer); priv->send_frame_messages_timer = 0; assign_frame_counter_to_frames (self); } if (shadow != NULL) { MetaShadowParams params; cairo_rectangle_int_t shape_bounds; cairo_region_t *clip = priv->shadow_clip; MetaWindow *window = priv->window; meta_window_actor_get_shape_bounds (self, &shape_bounds); meta_window_actor_get_shadow_params (self, appears_focused, ¶ms); /* The frame bounds are already subtracted from priv->shadow_clip * if that exists. */ if (!clip && clip_shadow_under_window (self)) { cairo_region_t *frame_bounds = meta_window_get_frame_bounds (priv->window); cairo_rectangle_int_t bounds; meta_window_actor_get_shadow_bounds (self, appears_focused, &bounds); clip = cairo_region_create_rectangle (&bounds); cairo_region_subtract (clip, frame_bounds); } meta_shadow_paint (shadow, params.x_offset + shape_bounds.x, params.y_offset + shape_bounds.y, shape_bounds.width, shape_bounds.height, (clutter_actor_get_paint_opacity (actor) * params.opacity * window->opacity) / (255 * 255), clip, clip_shadow_under_window (self)); /* clip_strictly - not just as an optimization */ if (clip && clip != priv->shadow_clip) cairo_region_destroy (clip); } CLUTTER_ACTOR_CLASS (meta_window_actor_parent_class)->paint (actor); } static gboolean meta_window_actor_get_paint_volume (ClutterActor *actor, ClutterPaintVolume *volume) { MetaWindowActor *self = META_WINDOW_ACTOR (actor); MetaWindowActorPrivate *priv = self->priv; gboolean appears_focused = meta_window_appears_focused (priv->window); /* The paint volume is computed before paint functions are called * so our bounds might not be updated yet. Force an update. */ meta_window_actor_handle_updates (self); if (appears_focused ? priv->focused_shadow : priv->unfocused_shadow) { cairo_rectangle_int_t shadow_bounds; ClutterActorBox shadow_box; /* We could compute an full clip region as we do for the window * texture, but the shadow is relatively cheap to draw, and * a little more complex to clip, so we just catch the case where * the shadow is completely obscured and doesn't need to be drawn * at all. */ meta_window_actor_get_shadow_bounds (self, appears_focused, &shadow_bounds); shadow_box.x1 = shadow_bounds.x; shadow_box.x2 = shadow_bounds.x + shadow_bounds.width; shadow_box.y1 = shadow_bounds.y; shadow_box.y2 = shadow_bounds.y + shadow_bounds.height; clutter_paint_volume_union_box (volume, &shadow_box); } if (priv->surface) { const ClutterPaintVolume *child_volume; child_volume = clutter_actor_get_transformed_paint_volume (CLUTTER_ACTOR (priv->surface), actor); if (!child_volume) return FALSE; clutter_paint_volume_union (volume, child_volume); } return TRUE; } static gboolean meta_window_actor_has_shadow (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->shadow_mode == META_SHADOW_MODE_FORCED_OFF) return FALSE; if (priv->shadow_mode == META_SHADOW_MODE_FORCED_ON) return TRUE; /* Leaving out shadows for maximized and fullscreen windows is an effeciency * win and also prevents the unsightly effect of the shadow of maximized * window appearing on an adjacent window */ if ((meta_window_get_maximized (priv->window) == META_MAXIMIZE_BOTH) || meta_window_is_fullscreen (priv->window)) return FALSE; /* * If we have two snap-tiled windows, we don't want the shadow to obstruct * the other window. */ if (meta_window_get_tile_match (priv->window)) return FALSE; /* * Always put a shadow around windows with a frame - This should override * the restriction about not putting a shadow around ARGB windows. */ if (meta_window_get_frame (priv->window)) return TRUE; /* * Do not add shadows to non-opaque (ARGB32) windows, as we can't easily * generate shadows for them. */ if (is_non_opaque (self)) return FALSE; /* * If a window specifies that it has custom frame extents, that likely * means that it is drawing a shadow itself. Don't draw our own. */ if (priv->window->has_custom_frame_extents) return FALSE; /* * Generate shadows for all other windows. */ return TRUE; } /** * meta_window_actor_get_meta_window: * @self: a #MetaWindowActor * * Gets the #MetaWindow object that the the #MetaWindowActor is displaying * * Return value: (transfer none): the displayed #MetaWindow */ MetaWindow * meta_window_actor_get_meta_window (MetaWindowActor *self) { return self->priv->window; } /** * meta_window_actor_get_texture: * @self: a #MetaWindowActor * * Gets the ClutterActor that is used to display the contents of the window, * or NULL if no texture is shown yet, because the window is not mapped. * * Return value: (transfer none): the #ClutterActor for the contents */ ClutterActor * meta_window_actor_get_texture (MetaWindowActor *self) { if (self->priv->surface) return CLUTTER_ACTOR (meta_surface_actor_get_texture (self->priv->surface)); else return NULL; } /** * meta_window_actor_get_surface: * @self: a #MetaWindowActor * * Gets the MetaSurfaceActor that draws the content of this window, * or NULL if there is no surface yet associated with this window. * * Return value: (transfer none): the #MetaSurfaceActor for the contents */ MetaSurfaceActor * meta_window_actor_get_surface (MetaWindowActor *self) { return self->priv->surface; } /** * meta_window_actor_is_destroyed: * @self: a #MetaWindowActor * * Gets whether the X window that the actor was displaying has been destroyed * * Return value: %TRUE when the window is destroyed, otherwise %FALSE */ gboolean meta_window_actor_is_destroyed (MetaWindowActor *self) { return self->priv->disposed || self->priv->needs_destroy; } static gboolean send_frame_messages_timeout (gpointer data) { MetaWindowActor *self = (MetaWindowActor *) data; MetaWindowActorPrivate *priv = self->priv; GList *l; for (l = priv->frames; l;) { GList *l_next = l->next; FrameData *frame = l->data; if (frame->frame_counter == -1) { do_send_frame_drawn (self, frame); do_send_frame_timings (self, frame, 0, 0); priv->frames = g_list_delete_link (priv->frames, l); frame_data_free (frame); } l = l_next; } priv->needs_frame_drawn = FALSE; priv->send_frame_messages_timer = 0; return FALSE; } static void queue_send_frame_messages_timeout (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaWindow *window = priv->window; MetaDisplay *display = meta_window_get_display (priv->window); MetaLogicalMonitor *logical_monitor; int64_t current_time; float refresh_rate; int interval, offset; if (priv->send_frame_messages_timer != 0) return; logical_monitor = meta_window_get_main_logical_monitor (window); if (logical_monitor) { GList *monitors = meta_logical_monitor_get_monitors (logical_monitor); MetaMonitor *monitor; MetaMonitorMode *mode; monitor = g_list_first (monitors)->data; mode = meta_monitor_get_current_mode (monitor); refresh_rate = meta_monitor_mode_get_refresh_rate (mode); } else { refresh_rate = 60.0f; } current_time = meta_compositor_monotonic_time_to_server_time (display, g_get_monotonic_time ()); interval = (int)(1000000 / refresh_rate) * 6; offset = MAX (0, priv->frame_drawn_time + interval - current_time) / 1000; /* The clutter master clock source has already been added with META_PRIORITY_REDRAW, * so the timer will run *after* the clutter frame handling, if a frame is ready * to be drawn when the timer expires. */ priv->send_frame_messages_timer = g_timeout_add_full (META_PRIORITY_REDRAW, offset, send_frame_messages_timeout, self, NULL); g_source_set_name_by_id (priv->send_frame_messages_timer, "[mutter] send_frame_messages_timeout"); } void meta_window_actor_queue_frame_drawn (MetaWindowActor *self, gboolean no_delay_frame) { MetaWindowActorPrivate *priv = self->priv; FrameData *frame; if (meta_window_actor_is_destroyed (self)) return; frame = g_slice_new0 (FrameData); frame->frame_counter = -1; priv->needs_frame_drawn = TRUE; frame->sync_request_serial = priv->window->sync_request_serial; priv->frames = g_list_prepend (priv->frames, frame); if (no_delay_frame) { ClutterActor *stage = clutter_actor_get_stage (CLUTTER_ACTOR (self)); clutter_stage_skip_sync_delay (CLUTTER_STAGE (stage)); } if (!priv->repaint_scheduled) { gboolean is_obscured; if (priv->surface) is_obscured = meta_surface_actor_is_obscured (priv->surface); else is_obscured = FALSE; /* A frame was marked by the client without actually doing any * damage or any unobscured, or while we had the window frozen * (e.g. during an interactive resize.) We need to make sure that the * pre_paint/post_paint functions get called, enabling us to * send a _NET_WM_FRAME_DRAWN. We do a 1-pixel redraw to get * consistent timing with non-empty frames. If the window * is completely obscured we fire off the send_frame_messages timeout. */ if (is_obscured) { queue_send_frame_messages_timeout (self); } else { if (priv->surface) { const cairo_rectangle_int_t clip = { 0, 0, 1, 1 }; clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (priv->surface), &clip); priv->repaint_scheduled = TRUE; } } } } gboolean meta_window_actor_effect_in_progress (MetaWindowActor *self) { return (self->priv->minimize_in_progress || self->priv->size_change_in_progress || self->priv->map_in_progress || self->priv->destroy_in_progress); } static gboolean is_freeze_thaw_effect (MetaPluginEffect event) { switch (event) { case META_PLUGIN_DESTROY: case META_PLUGIN_SIZE_CHANGE: return TRUE; break; default: return FALSE; } } static gboolean start_simple_effect (MetaWindowActor *self, MetaPluginEffect event) { MetaWindowActorPrivate *priv = self->priv; MetaCompositor *compositor = priv->compositor; gint *counter = NULL; gboolean use_freeze_thaw = FALSE; g_assert (compositor->plugin_mgr != NULL); switch (event) { case META_PLUGIN_NONE: return FALSE; case META_PLUGIN_MINIMIZE: counter = &priv->minimize_in_progress; break; case META_PLUGIN_UNMINIMIZE: counter = &priv->unminimize_in_progress; break; case META_PLUGIN_MAP: counter = &priv->map_in_progress; break; case META_PLUGIN_DESTROY: counter = &priv->destroy_in_progress; break; case META_PLUGIN_SIZE_CHANGE: case META_PLUGIN_SWITCH_WORKSPACE: g_assert_not_reached (); break; } g_assert (counter); use_freeze_thaw = is_freeze_thaw_effect (event); if (use_freeze_thaw) meta_window_actor_freeze (self); (*counter)++; if (!meta_plugin_manager_event_simple (compositor->plugin_mgr, self, event)) { (*counter)--; if (use_freeze_thaw) meta_window_actor_thaw (self); return FALSE; } return TRUE; } static void meta_window_actor_after_effects (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->needs_destroy) { clutter_actor_destroy (CLUTTER_ACTOR (self)); return; } g_signal_emit (self, signals[EFFECTS_COMPLETED], 0); meta_window_actor_sync_visibility (self); meta_window_actor_sync_actor_geometry (self, FALSE); } void meta_window_actor_effect_completed (MetaWindowActor *self, MetaPluginEffect event) { MetaWindowActorPrivate *priv = self->priv; gboolean inconsistent = FALSE; /* NB: Keep in mind that when effects get completed it possible * that the corresponding MetaWindow may have be been destroyed. * In this case priv->window will == NULL */ switch (event) { case META_PLUGIN_NONE: break; case META_PLUGIN_MINIMIZE: { priv->minimize_in_progress--; if (priv->minimize_in_progress < 0) { g_warning ("Error in minimize accounting."); priv->minimize_in_progress = 0; inconsistent = TRUE; } } break; case META_PLUGIN_UNMINIMIZE: { priv->unminimize_in_progress--; if (priv->unminimize_in_progress < 0) { g_warning ("Error in unminimize accounting."); priv->unminimize_in_progress = 0; inconsistent = TRUE; } } break; case META_PLUGIN_MAP: /* * Make sure that the actor is at the correct place in case * the plugin fscked. */ priv->map_in_progress--; if (priv->map_in_progress < 0) { g_warning ("Error in map accounting."); priv->map_in_progress = 0; inconsistent = TRUE; } break; case META_PLUGIN_DESTROY: priv->destroy_in_progress--; if (priv->destroy_in_progress < 0) { g_warning ("Error in destroy accounting."); priv->destroy_in_progress = 0; inconsistent = TRUE; } break; case META_PLUGIN_SIZE_CHANGE: priv->size_change_in_progress--; if (priv->size_change_in_progress < 0) { g_warning ("Error in size change accounting."); priv->size_change_in_progress = 0; inconsistent = TRUE; } break; case META_PLUGIN_SWITCH_WORKSPACE: g_assert_not_reached (); break; } if (is_freeze_thaw_effect (event) && !inconsistent) meta_window_actor_thaw (self); if (!meta_window_actor_effect_in_progress (self)) meta_window_actor_after_effects (self); } gboolean meta_window_actor_should_unredirect (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (!meta_window_actor_is_destroyed (self) && priv->surface) return meta_surface_actor_should_unredirect (priv->surface); else return FALSE; } void meta_window_actor_set_unredirected (MetaWindowActor *self, gboolean unredirected) { MetaWindowActorPrivate *priv = self->priv; g_assert(priv->surface); /* because otherwise should_unredirect() is FALSE */ meta_surface_actor_set_unredirected (priv->surface, unredirected); } void meta_window_actor_queue_destroy (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaWindow *window = priv->window; MetaWindowType window_type = meta_window_get_window_type (window); meta_window_set_compositor_private (window, NULL); if (priv->send_frame_messages_timer != 0) { g_source_remove (priv->send_frame_messages_timer); priv->send_frame_messages_timer = 0; } if (window_type == META_WINDOW_DROPDOWN_MENU || window_type == META_WINDOW_POPUP_MENU || window_type == META_WINDOW_TOOLTIP || window_type == META_WINDOW_NOTIFICATION || window_type == META_WINDOW_COMBO || window_type == META_WINDOW_DND || window_type == META_WINDOW_OVERRIDE_OTHER) { /* * No effects, just kill it. */ clutter_actor_destroy (CLUTTER_ACTOR (self)); return; } priv->needs_destroy = TRUE; if (!meta_window_actor_effect_in_progress (self)) clutter_actor_destroy (CLUTTER_ACTOR (self)); } void meta_window_actor_sync_actor_geometry (MetaWindowActor *self, gboolean did_placement) { MetaWindowActorPrivate *priv = self->priv; MetaRectangle window_rect; meta_window_get_buffer_rect (priv->window, &window_rect); /* When running as a Wayland compositor we catch size changes when new * buffers are attached */ if (META_IS_SURFACE_ACTOR_X11 (priv->surface)) meta_surface_actor_x11_set_size (META_SURFACE_ACTOR_X11 (priv->surface), window_rect.width, window_rect.height); /* Normally we want freezing a window to also freeze its position; this allows * windows to atomically move and resize together, either under app control, * or because the user is resizing from the left/top. But on initial placement * we need to assign a position, since immediately after the window * is shown, the map effect will go into effect and prevent further geometry * updates. */ if (is_frozen (self) && !did_placement) return; if (meta_window_actor_effect_in_progress (self)) return; clutter_actor_set_position (CLUTTER_ACTOR (self), window_rect.x, window_rect.y); clutter_actor_set_size (CLUTTER_ACTOR (self), window_rect.width, window_rect.height); } void meta_window_actor_show (MetaWindowActor *self, MetaCompEffect effect) { MetaWindowActorPrivate *priv = self->priv; MetaCompositor *compositor = priv->compositor; MetaPluginEffect event; g_return_if_fail (!priv->visible); self->priv->visible = TRUE; switch (effect) { case META_COMP_EFFECT_CREATE: event = META_PLUGIN_MAP; break; case META_COMP_EFFECT_UNMINIMIZE: event = META_PLUGIN_UNMINIMIZE; break; case META_COMP_EFFECT_NONE: event = META_PLUGIN_NONE; break; default: g_assert_not_reached(); } if (compositor->switch_workspace_in_progress || !start_simple_effect (self, event)) { clutter_actor_show (CLUTTER_ACTOR (self)); } } void meta_window_actor_hide (MetaWindowActor *self, MetaCompEffect effect) { MetaWindowActorPrivate *priv = self->priv; MetaCompositor *compositor = priv->compositor; MetaPluginEffect event; g_return_if_fail (priv->visible); priv->visible = FALSE; /* If a plugin is animating a workspace transition, we have to * hold off on hiding the window, and do it after the workspace * switch completes */ if (compositor->switch_workspace_in_progress) return; switch (effect) { case META_COMP_EFFECT_DESTROY: event = META_PLUGIN_DESTROY; break; case META_COMP_EFFECT_MINIMIZE: event = META_PLUGIN_MINIMIZE; break; case META_COMP_EFFECT_NONE: event = META_PLUGIN_NONE; break; default: g_assert_not_reached(); } if (!start_simple_effect (self, event)) clutter_actor_hide (CLUTTER_ACTOR (self)); } void meta_window_actor_size_change (MetaWindowActor *self, MetaSizeChange which_change, MetaRectangle *old_frame_rect, MetaRectangle *old_buffer_rect) { MetaWindowActorPrivate *priv = self->priv; MetaCompositor *compositor = priv->compositor; self->priv->size_change_in_progress++; meta_window_actor_freeze (self); if (!meta_plugin_manager_event_size_change (compositor->plugin_mgr, self, which_change, old_frame_rect, old_buffer_rect)) { self->priv->size_change_in_progress--; meta_window_actor_thaw (self); } } MetaWindowActor * meta_window_actor_new (MetaWindow *window) { MetaDisplay *display = meta_window_get_display (window); MetaCompositor *compositor = display->compositor; MetaWindowActor *self; MetaWindowActorPrivate *priv; ClutterActor *window_group; self = g_object_new (META_TYPE_WINDOW_ACTOR, "meta-window", window, NULL); priv = self->priv; meta_window_actor_sync_updates_frozen (self); if (is_frozen (self)) priv->first_frame_state = INITIALLY_FROZEN; else priv->first_frame_state = DRAWING_FIRST_FRAME; /* If a window doesn't start off with updates frozen, we should * we should send a _NET_WM_FRAME_DRAWN immediately after the first drawn. */ if (priv->window->extended_sync_request_counter && !priv->updates_frozen) meta_window_actor_queue_frame_drawn (self, FALSE); meta_window_actor_sync_actor_geometry (self, priv->window->placed); /* Hang our compositor window state off the MetaWindow for fast retrieval */ meta_window_set_compositor_private (window, G_OBJECT (self)); if (window->layer == META_LAYER_OVERRIDE_REDIRECT) window_group = compositor->top_window_group; else window_group = compositor->window_group; clutter_actor_add_child (window_group, CLUTTER_ACTOR (self)); clutter_actor_hide (CLUTTER_ACTOR (self)); /* Initial position in the stack is arbitrary; stacking will be synced * before we first paint. */ compositor->windows = g_list_append (compositor->windows, self); return self; } #if 0 /* Print out a region; useful for debugging */ static void print_region (cairo_region_t *region) { int n_rects; int i; n_rects = cairo_region_num_rectangles (region); g_print ("["); for (i = 0; i < n_rects; i++) { cairo_rectangle_int_t rect; cairo_region_get_rectangle (region, i, &rect); g_print ("+%d+%dx%dx%d ", rect.x, rect.y, rect.width, rect.height); } g_print ("]\n"); } #endif #if 0 /* Dump a region to a PNG file; useful for debugging */ static void see_region (cairo_region_t *region, int width, int height, char *filename) { cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); cairo_t *cr = cairo_create (surface); gdk_cairo_region (cr, region); cairo_fill (cr); cairo_surface_write_to_png (surface, filename); cairo_destroy (cr); cairo_surface_destroy (surface); } #endif /** * meta_window_actor_set_clip_region_beneath: * @self: a #MetaWindowActor * @clip_region: the region of the screen that isn't completely * obscured beneath the main window texture. * * Provides a hint as to what areas need to be drawn *beneath* * the main window texture. This is the relevant clip region * when drawing the shadow, properly accounting for areas of the * shadow hid by the window itself. This will be set before painting * then unset afterwards. */ static void meta_window_actor_set_clip_region_beneath (MetaWindowActor *self, cairo_region_t *beneath_region) { MetaWindowActorPrivate *priv = self->priv; gboolean appears_focused = meta_window_appears_focused (priv->window); if (appears_focused ? priv->focused_shadow : priv->unfocused_shadow) { g_clear_pointer (&priv->shadow_clip, cairo_region_destroy); if (beneath_region) { priv->shadow_clip = cairo_region_copy (beneath_region); if (clip_shadow_under_window (self)) { cairo_region_t *frame_bounds = meta_window_get_frame_bounds (priv->window); cairo_region_subtract (priv->shadow_clip, frame_bounds); } } else priv->shadow_clip = NULL; } } static void meta_window_actor_cull_out (MetaCullable *cullable, cairo_region_t *unobscured_region, cairo_region_t *clip_region) { MetaWindowActor *self = META_WINDOW_ACTOR (cullable); meta_cullable_cull_out_children (cullable, unobscured_region, clip_region); meta_window_actor_set_clip_region_beneath (self, clip_region); } static void meta_window_actor_reset_culling (MetaCullable *cullable) { MetaWindowActor *self = META_WINDOW_ACTOR (cullable); MetaWindowActorPrivate *priv = self->priv; g_clear_pointer (&priv->shadow_clip, cairo_region_destroy); meta_cullable_reset_culling_children (cullable); } static void cullable_iface_init (MetaCullableInterface *iface) { iface->cull_out = meta_window_actor_cull_out; iface->reset_culling = meta_window_actor_reset_culling; } static void check_needs_shadow (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaShadow *old_shadow = NULL; MetaShadow **shadow_location; gboolean recompute_shadow; gboolean should_have_shadow; gboolean appears_focused; /* Calling meta_window_actor_has_shadow() here at every pre-paint is cheap * and avoids the need to explicitly handle window type changes, which * we would do if tried to keep track of when we might be adding or removing * a shadow more explicitly. We only keep track of changes to the *shape* of * the shadow with priv->recompute_shadow. */ should_have_shadow = meta_window_actor_has_shadow (self); appears_focused = meta_window_appears_focused (priv->window); if (appears_focused) { recompute_shadow = priv->recompute_focused_shadow; priv->recompute_focused_shadow = FALSE; shadow_location = &priv->focused_shadow; } else { recompute_shadow = priv->recompute_unfocused_shadow; priv->recompute_unfocused_shadow = FALSE; shadow_location = &priv->unfocused_shadow; } if (!should_have_shadow || recompute_shadow) { if (*shadow_location != NULL) { old_shadow = *shadow_location; *shadow_location = NULL; } } if (*shadow_location == NULL && should_have_shadow) { if (priv->shadow_shape == NULL) priv->shadow_shape = meta_window_shape_new (priv->shape_region); MetaShadowFactory *factory = meta_shadow_factory_get_default (); const char *shadow_class = meta_window_actor_get_shadow_class (self); cairo_rectangle_int_t shape_bounds; meta_window_actor_get_shape_bounds (self, &shape_bounds); *shadow_location = meta_shadow_factory_get_shadow (factory, priv->shadow_shape, shape_bounds.width, shape_bounds.height, shadow_class, appears_focused); } if (old_shadow != NULL) meta_shadow_unref (old_shadow); } void meta_window_actor_process_x11_damage (MetaWindowActor *self, XDamageNotifyEvent *event) { MetaWindowActorPrivate *priv = self->priv; if (priv->surface) meta_surface_actor_process_damage (priv->surface, event->area.x, event->area.y, event->area.width, event->area.height); } void meta_window_actor_sync_visibility (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (CLUTTER_ACTOR_IS_VISIBLE (self) != priv->visible) { if (priv->visible) clutter_actor_show (CLUTTER_ACTOR (self)); else clutter_actor_hide (CLUTTER_ACTOR (self)); } } static cairo_region_t * scan_visible_region (guchar *mask_data, int stride, cairo_region_t *scan_area) { int i, n_rects = cairo_region_num_rectangles (scan_area); MetaRegionBuilder builder; meta_region_builder_init (&builder); for (i = 0; i < n_rects; i++) { int x, y; cairo_rectangle_int_t rect; cairo_region_get_rectangle (scan_area, i, &rect); for (y = rect.y; y < (rect.y + rect.height); y++) { for (x = rect.x; x < (rect.x + rect.width); x++) { int x2 = x; while (mask_data[y * stride + x2] == 255 && x2 < (rect.x + rect.width)) x2++; if (x2 > x) { meta_region_builder_add_rectangle (&builder, x, y, x2 - x, 1); x = x2; } } } } return meta_region_builder_finish (&builder); } static void build_and_scan_frame_mask (MetaWindowActor *self, cairo_rectangle_int_t *client_area, cairo_region_t *shape_region) { ClutterBackend *backend = clutter_get_default_backend (); CoglContext *ctx = clutter_backend_get_cogl_context (backend); MetaWindowActorPrivate *priv = self->priv; guchar *mask_data; guint tex_width, tex_height; MetaShapedTexture *stex; CoglTexture *paint_tex, *mask_texture; int stride; cairo_t *cr; cairo_surface_t *surface; stex = meta_surface_actor_get_texture (priv->surface); g_return_if_fail (stex); meta_shaped_texture_set_mask_texture (stex, NULL); paint_tex = meta_shaped_texture_get_texture (stex); if (paint_tex == NULL) return; tex_width = cogl_texture_get_width (paint_tex); tex_height = cogl_texture_get_height (paint_tex); stride = cairo_format_stride_for_width (CAIRO_FORMAT_A8, tex_width); /* Create data for an empty image */ mask_data = g_malloc0 (stride * tex_height); surface = cairo_image_surface_create_for_data (mask_data, CAIRO_FORMAT_A8, tex_width, tex_height, stride); cr = cairo_create (surface); gdk_cairo_region (cr, shape_region); cairo_fill (cr); if (priv->window->frame != NULL) { cairo_region_t *frame_paint_region, *scanned_region; cairo_rectangle_int_t rect = { 0, 0, tex_width, tex_height }; /* Make sure we don't paint the frame over the client window. */ frame_paint_region = cairo_region_create_rectangle (&rect); cairo_region_subtract_rectangle (frame_paint_region, client_area); gdk_cairo_region (cr, frame_paint_region); cairo_clip (cr); meta_frame_get_mask (priv->window->frame, cr); cairo_surface_flush (surface); scanned_region = scan_visible_region (mask_data, stride, frame_paint_region); cairo_region_union (shape_region, scanned_region); cairo_region_destroy (scanned_region); cairo_region_destroy (frame_paint_region); } cairo_destroy (cr); cairo_surface_destroy (surface); if (meta_texture_rectangle_check (paint_tex)) { mask_texture = COGL_TEXTURE (cogl_texture_rectangle_new_with_size (ctx, tex_width, tex_height)); cogl_texture_set_components (mask_texture, COGL_TEXTURE_COMPONENTS_A); cogl_texture_set_region (mask_texture, 0, 0, /* src_x/y */ 0, 0, /* dst_x/y */ tex_width, tex_height, /* dst_width/height */ tex_width, tex_height, /* width/height */ COGL_PIXEL_FORMAT_A_8, stride, mask_data); } else { CoglError *error = NULL; mask_texture = COGL_TEXTURE (cogl_texture_2d_new_from_data (ctx, tex_width, tex_height, COGL_PIXEL_FORMAT_A_8, stride, mask_data, &error)); if (error) { g_warning ("Failed to allocate mask texture: %s", error->message); cogl_error_free (error); } } meta_shaped_texture_set_mask_texture (stex, mask_texture); if (mask_texture) cogl_object_unref (mask_texture); g_free (mask_data); } static void meta_window_actor_update_shape_region (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; cairo_region_t *region = NULL; cairo_rectangle_int_t client_area; meta_window_get_client_area_rect (priv->window, &client_area); if (priv->window->frame != NULL && priv->window->shape_region != NULL) { region = cairo_region_copy (priv->window->shape_region); cairo_region_translate (region, client_area.x, client_area.y); } else if (priv->window->shape_region != NULL) { region = cairo_region_reference (priv->window->shape_region); } else { /* If we don't have a shape on the server, that means that * we have an implicit shape of one rectangle covering the * entire window. */ region = cairo_region_create_rectangle (&client_area); } if ((priv->window->shape_region != NULL) || (priv->window->frame != NULL)) build_and_scan_frame_mask (self, &client_area, region); g_clear_pointer (&priv->shape_region, cairo_region_destroy); priv->shape_region = region; g_clear_pointer (&priv->shadow_shape, meta_window_shape_unref); meta_window_actor_invalidate_shadow (self); } static void meta_window_actor_update_input_region (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaWindow *window = priv->window; cairo_region_t *region; if (window->shape_region && window->input_region) { region = cairo_region_copy (window->shape_region); cairo_region_intersect (region, window->input_region); } else if (window->shape_region) region = cairo_region_reference (window->shape_region); else if (window->input_region) region = cairo_region_reference (window->input_region); else region = NULL; meta_surface_actor_set_input_region (priv->surface, region); cairo_region_destroy (region); } static void meta_window_actor_update_opaque_region (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; cairo_region_t *opaque_region; gboolean argb32 = is_argb32 (self); if (argb32 && priv->window->opaque_region != NULL) { cairo_rectangle_int_t client_area; meta_window_get_client_area_rect (priv->window, &client_area); /* The opaque region is defined to be a part of the * window which ARGB32 will always paint with opaque * pixels. For these regions, we want to avoid painting * windows and shadows beneath them. * * If the client gives bad coordinates where it does not * fully paint, the behavior is defined by the specification * to be undefined, and considered a client bug. In mutter's * case, graphical glitches will occur. */ opaque_region = cairo_region_copy (priv->window->opaque_region); cairo_region_translate (opaque_region, client_area.x, client_area.y); cairo_region_intersect (opaque_region, priv->shape_region); } else if (argb32) opaque_region = NULL; else opaque_region = cairo_region_reference (priv->shape_region); meta_surface_actor_set_opaque_region (priv->surface, opaque_region); cairo_region_destroy (opaque_region); } static void check_needs_reshape (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (!priv->needs_reshape) return; meta_window_actor_update_shape_region (self); if (priv->window->client_type == META_WINDOW_CLIENT_TYPE_X11) { meta_window_actor_update_input_region (self); meta_window_actor_update_opaque_region (self); } priv->needs_reshape = FALSE; } void meta_window_actor_update_shape (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; priv->needs_reshape = TRUE; if (is_frozen (self)) return; clutter_actor_queue_redraw (CLUTTER_ACTOR (priv->surface)); } static void meta_window_actor_handle_updates (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (is_frozen (self)) { /* The window is frozen due to a pending animation: we'll wait until * the animation finishes to reshape and repair the window */ return; } if (meta_surface_actor_is_unredirected (priv->surface)) return; meta_surface_actor_pre_paint (priv->surface); if (!meta_surface_actor_is_visible (priv->surface)) return; check_needs_reshape (self); check_needs_shadow (self); } void meta_window_actor_pre_paint (MetaWindowActor *self) { if (meta_window_actor_is_destroyed (self)) return; meta_window_actor_handle_updates (self); assign_frame_counter_to_frames (self); } static void do_send_frame_drawn (MetaWindowActor *self, FrameData *frame) { MetaWindowActorPrivate *priv = self->priv; MetaDisplay *display = meta_window_get_display (priv->window); Display *xdisplay = meta_x11_display_get_xdisplay (display->x11_display); XClientMessageEvent ev = { 0, }; frame->frame_drawn_time = meta_compositor_monotonic_time_to_server_time (display, g_get_monotonic_time ()); priv->frame_drawn_time = frame->frame_drawn_time; ev.type = ClientMessage; ev.window = meta_window_get_xwindow (priv->window); ev.message_type = display->x11_display->atom__NET_WM_FRAME_DRAWN; ev.format = 32; ev.data.l[0] = frame->sync_request_serial & G_GUINT64_CONSTANT(0xffffffff); ev.data.l[1] = frame->sync_request_serial >> 32; ev.data.l[2] = frame->frame_drawn_time & G_GUINT64_CONSTANT(0xffffffff); ev.data.l[3] = frame->frame_drawn_time >> 32; meta_x11_error_trap_push (display->x11_display); XSendEvent (xdisplay, ev.window, False, 0, (XEvent*) &ev); XFlush (xdisplay); meta_x11_error_trap_pop (display->x11_display); } void meta_window_actor_post_paint (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; priv->repaint_scheduled = FALSE; if (meta_window_actor_is_destroyed (self)) return; /* If the window had damage, but wasn't actually redrawn because * it is obscured, we should wait until timer expiration before * sending _NET_WM_FRAME_* messages. */ if (priv->send_frame_messages_timer == 0 && priv->needs_frame_drawn) { GList *l; for (l = priv->frames; l; l = l->next) { FrameData *frame = l->data; if (frame->frame_drawn_time == 0) do_send_frame_drawn (self, frame); } priv->needs_frame_drawn = FALSE; } if (priv->first_frame_state == DRAWING_FIRST_FRAME) { priv->first_frame_state = EMITTED_FIRST_FRAME; g_signal_emit (self, signals[FIRST_FRAME], 0); } } static void do_send_frame_timings (MetaWindowActor *self, FrameData *frame, gint refresh_interval, gint64 presentation_time) { MetaWindowActorPrivate *priv = self->priv; MetaDisplay *display = meta_window_get_display (priv->window); Display *xdisplay = meta_x11_display_get_xdisplay (display->x11_display); XClientMessageEvent ev = { 0, }; ev.type = ClientMessage; ev.window = meta_window_get_xwindow (priv->window); ev.message_type = display->x11_display->atom__NET_WM_FRAME_TIMINGS; ev.format = 32; ev.data.l[0] = frame->sync_request_serial & G_GUINT64_CONSTANT(0xffffffff); ev.data.l[1] = frame->sync_request_serial >> 32; if (presentation_time != 0) { gint64 presentation_time_server = meta_compositor_monotonic_time_to_server_time (display, presentation_time); gint64 presentation_time_offset = presentation_time_server - frame->frame_drawn_time; if (presentation_time_offset == 0) presentation_time_offset = 1; if ((gint32)presentation_time_offset == presentation_time_offset) ev.data.l[2] = presentation_time_offset; } ev.data.l[3] = refresh_interval; ev.data.l[4] = 1000 * META_SYNC_DELAY; meta_x11_error_trap_push (display->x11_display); XSendEvent (xdisplay, ev.window, False, 0, (XEvent*) &ev); XFlush (xdisplay); meta_x11_error_trap_pop (display->x11_display); } static void send_frame_timings (MetaWindowActor *self, FrameData *frame, ClutterFrameInfo *frame_info, gint64 presentation_time) { float refresh_rate; int refresh_interval; refresh_rate = frame_info->refresh_rate; /* 0.0 is a flag for not known, but sanity-check against other odd numbers */ if (refresh_rate >= 1.0) refresh_interval = (int) (0.5 + 1000000 / refresh_rate); else refresh_interval = 0; do_send_frame_timings (self, frame, refresh_interval, presentation_time); } void meta_window_actor_frame_complete (MetaWindowActor *self, ClutterFrameInfo *frame_info, gint64 presentation_time) { MetaWindowActorPrivate *priv = self->priv; GList *l; if (meta_window_actor_is_destroyed (self)) return; for (l = priv->frames; l;) { GList *l_next = l->next; FrameData *frame = l->data; gint64 frame_counter = frame_info->frame_counter; if (frame->frame_counter != -1 && frame->frame_counter <= frame_counter) { if (G_UNLIKELY (frame->frame_drawn_time == 0)) g_warning ("%s: Frame has assigned frame counter but no frame drawn time", priv->window->desc); if (G_UNLIKELY (frame->frame_counter < frame_counter)) g_warning ("%s: frame_complete callback never occurred for frame %" G_GINT64_FORMAT, priv->window->desc, frame->frame_counter); priv->frames = g_list_delete_link (priv->frames, l); send_frame_timings (self, frame, frame_info, presentation_time); frame_data_free (frame); } l = l_next; } } void meta_window_actor_invalidate_shadow (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; priv->recompute_focused_shadow = TRUE; priv->recompute_unfocused_shadow = TRUE; if (is_frozen (self)) return; clutter_actor_queue_redraw (CLUTTER_ACTOR (self)); } void meta_window_actor_update_opacity (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaWindow *window = priv->window; if (priv->surface) clutter_actor_set_opacity (CLUTTER_ACTOR (priv->surface), window->opacity); } static void meta_window_actor_set_updates_frozen (MetaWindowActor *self, gboolean updates_frozen) { MetaWindowActorPrivate *priv = self->priv; updates_frozen = updates_frozen != FALSE; if (priv->updates_frozen != updates_frozen) { priv->updates_frozen = updates_frozen; if (updates_frozen) meta_window_actor_freeze (self); else meta_window_actor_thaw (self); } } void meta_window_actor_sync_updates_frozen (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaWindow *window = priv->window; meta_window_actor_set_updates_frozen (self, meta_window_updates_are_frozen (window)); } MetaWindowActor * meta_window_actor_from_window (MetaWindow *window) { return META_WINDOW_ACTOR (meta_window_get_compositor_private (window)); }