/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ #include #include #include #include #include #include #include #define COGL_ENABLE_EXPERIMENTAL_API #include #include /* for gdk_rectangle_union() */ #include #include #include #include "frame.h" #include #include #include "xprops.h" #include "compositor-private.h" #include "meta-shadow-factory-private.h" #include "meta-window-actor-private.h" #include "meta-texture-rectangle.h" #include "region-utils.h" enum { POSITION_CHANGED, SIZE_CHANGED, LAST_SIGNAL }; static guint signals[LAST_SIGNAL] = {0}; struct _MetaWindowActorPrivate { MetaWindow *window; Window xwindow; MetaScreen *screen; ClutterActor *actor; /* 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; Pixmap back_pixmap; Damage damage; guint8 opacity; guint8 shadow_opacity; gchar * desc; /* If the window is shaped, a region that matches the shape */ cairo_region_t *shape_region; /* A rectangular region with the visible extents of the window */ cairo_region_t *bounding_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; gint last_width; gint last_height; MetaFrameBorders last_borders; gint freeze_count; char * shadow_class; /* * 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 maximize_in_progress; gint unmaximize_in_progress; gint map_in_progress; gint destroy_in_progress; guint visible : 1; guint mapped : 1; guint argb32 : 1; guint disposed : 1; guint redecorating : 1; guint needs_damage_all : 1; guint received_damage : 1; guint needs_pixmap : 1; guint needs_reshape : 1; guint recompute_focused_shadow : 1; guint recompute_unfocused_shadow : 1; guint size_changed : 1; guint needs_destroy : 1; guint no_shadow : 1; guint no_more_x_calls : 1; guint unredirected : 1; }; enum { PROP_META_WINDOW = 1, PROP_META_SCREEN, PROP_X_WINDOW, PROP_NO_SHADOW, 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 void meta_window_actor_detach (MetaWindowActor *self); static gboolean meta_window_actor_has_shadow (MetaWindowActor *self); static void meta_window_actor_clear_shape_region (MetaWindowActor *self); static void meta_window_actor_clear_bounding_region (MetaWindowActor *self); static void meta_window_actor_clear_shadow_clip (MetaWindowActor *self); G_DEFINE_TYPE (MetaWindowActor, meta_window_actor, CLUTTER_TYPE_GROUP); 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; g_type_class_add_private (klass, sizeof (MetaWindowActorPrivate)); 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; pspec = g_param_spec_object ("meta-window", "MetaWindow", "The displayed MetaWindow", META_TYPE_WINDOW, G_PARAM_READWRITE | G_PARAM_CONSTRUCT); g_object_class_install_property (object_class, PROP_META_WINDOW, pspec); pspec = g_param_spec_pointer ("meta-screen", "MetaScreen", "MetaScreen", G_PARAM_READWRITE | G_PARAM_CONSTRUCT); g_object_class_install_property (object_class, PROP_META_SCREEN, pspec); pspec = g_param_spec_ulong ("x-window", "Window", "Window", 0, G_MAXULONG, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT); g_object_class_install_property (object_class, PROP_X_WINDOW, pspec); pspec = g_param_spec_boolean ("no-shadow", "No shadow", "Do not add shaddow to this window", FALSE, G_PARAM_READWRITE); g_object_class_install_property (object_class, PROP_NO_SHADOW, 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); signals[POSITION_CHANGED] = g_signal_new ("position-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 0); signals[SIZE_CHANGED] = g_signal_new ("size-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 0); } 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->opacity = 0xff; priv->shadow_class = NULL; } static void window_decorated_notify (MetaWindow *mw, GParamSpec *arg1, gpointer data) { MetaWindowActor *self = META_WINDOW_ACTOR (data); MetaWindowActorPrivate *priv = self->priv; MetaFrame *frame = meta_window_get_frame (mw); MetaScreen *screen = priv->screen; MetaDisplay *display = meta_screen_get_display (screen); Display *xdisplay = meta_display_get_xdisplay (display); Window new_xwindow; /* * Basically, we have to reconstruct the the internals of this object * from scratch, as everything has changed. */ priv->redecorating = TRUE; if (frame) new_xwindow = meta_frame_get_xwindow (frame); else new_xwindow = meta_window_get_xwindow (mw); meta_window_actor_detach (self); /* * First of all, clean up any resources we are currently using and will * be replacing. */ if (priv->damage != None) { meta_error_trap_push (display); XDamageDestroy (xdisplay, priv->damage); meta_error_trap_pop (display); priv->damage = None; } g_free (priv->desc); priv->desc = NULL; priv->xwindow = new_xwindow; /* * Recreate the contents. */ meta_window_actor_constructed (G_OBJECT (self)); } static void window_appears_focused_notify (MetaWindow *mw, GParamSpec *arg1, gpointer data) { clutter_actor_queue_redraw (CLUTTER_ACTOR (data)); } static void meta_window_actor_constructed (GObject *object) { MetaWindowActor *self = META_WINDOW_ACTOR (object); MetaWindowActorPrivate *priv = self->priv; MetaScreen *screen = priv->screen; MetaDisplay *display = meta_screen_get_display (screen); Window xwindow = priv->xwindow; MetaWindow *window = priv->window; Display *xdisplay = meta_display_get_xdisplay (display); XRenderPictFormat *format; priv->damage = XDamageCreate (xdisplay, xwindow, XDamageReportBoundingBox); format = XRenderFindVisualFormat (xdisplay, window->xvisual); if (format && format->type == PictTypeDirect && format->direct.alphaMask) priv->argb32 = TRUE; if (!priv->actor) { priv->actor = meta_shaped_texture_new (); clutter_container_add_actor (CLUTTER_CONTAINER (self), priv->actor); /* * Since we are holding a pointer to this actor independently of the * ClutterContainer internals, and provide a public API to access it, * add a reference here, so that if someone is messing about with us * via the container interface, we do not end up with a dangling pointer. * We will release it in dispose(). */ g_object_ref (priv->actor); g_signal_connect (window, "notify::decorated", G_CALLBACK (window_decorated_notify), self); g_signal_connect (window, "notify::appears-focused", G_CALLBACK (window_appears_focused_notify), self); } else { /* * This is the case where existing window is gaining/loosing frame. * Just ensure the actor is top most (i.e., above shadow). */ clutter_actor_raise_top (priv->actor); } meta_window_actor_update_opacity (self); meta_window_actor_update_shape (self); } static void meta_window_actor_dispose (GObject *object) { MetaWindowActor *self = META_WINDOW_ACTOR (object); MetaWindowActorPrivate *priv = self->priv; MetaScreen *screen; MetaDisplay *display; Display *xdisplay; MetaCompScreen *info; if (priv->disposed) return; priv->disposed = TRUE; screen = priv->screen; display = meta_screen_get_display (screen); xdisplay = meta_display_get_xdisplay (display); info = meta_screen_get_compositor_data (screen); meta_window_actor_detach (self); meta_window_actor_clear_shape_region (self); meta_window_actor_clear_bounding_region (self); meta_window_actor_clear_shadow_clip (self); if (priv->shadow_class != NULL) { g_free (priv->shadow_class); priv->shadow_class = NULL; } if (priv->focused_shadow != NULL) { meta_shadow_unref (priv->focused_shadow); priv->focused_shadow = NULL; } if (priv->unfocused_shadow != NULL) { meta_shadow_unref (priv->unfocused_shadow); priv->unfocused_shadow = NULL; } if (priv->shadow_shape != NULL) { meta_window_shape_unref (priv->shadow_shape); priv->shadow_shape = NULL; } if (priv->damage != None) { meta_error_trap_push (display); XDamageDestroy (xdisplay, priv->damage); meta_error_trap_pop (display); priv->damage = None; } info->windows = g_list_remove (info->windows, (gconstpointer) self); if (priv->window) { g_object_unref (priv->window); priv->window = NULL; } /* * Release the extra reference we took on the actor. */ g_object_unref (priv->actor); priv->actor = 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_free (priv->desc); 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: { if (priv->window) g_object_unref (priv->window); priv->window = g_value_dup_object (value); } break; case PROP_META_SCREEN: priv->screen = g_value_get_pointer (value); break; case PROP_X_WINDOW: priv->xwindow = g_value_get_ulong (value); break; case PROP_NO_SHADOW: { gboolean newv = g_value_get_boolean (value); if (newv == priv->no_shadow) return; priv->no_shadow = 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_META_SCREEN: g_value_set_pointer (value, priv->screen); break; case PROP_X_WINDOW: g_value_set_ulong (value, priv->xwindow); break; case PROP_NO_SHADOW: g_value_set_boolean (value, priv->no_shadow); 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: 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; /* We need to be defensive here because there are corner cases * where getting the shape fails on a window being destroyed * and similar. */ if (priv->shape_region) cairo_region_get_extents (priv->shape_region, bounds); else if (priv->bounding_region) cairo_region_get_extents (priv->bounding_region, bounds); else bounds->x = bounds->y = bounds->width = bounds->height = 0; } 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 (priv->argb32 || priv->opacity != 0xff) && priv->window->frame; } 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; if (shadow != NULL) { MetaShadowParams params; cairo_rectangle_int_t shape_bounds; cairo_region_t *clip = priv->shadow_clip; 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 * priv->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; cairo_rectangle_int_t bounds; gboolean appears_focused = meta_window_appears_focused (priv->window); ClutterVertex origin; /* The paint volume is computed before paint functions are called * so our bounds might not be updated yet. Force an update. */ meta_window_actor_pre_paint (self); meta_window_actor_get_shape_bounds (self, &bounds); if (appears_focused ? priv->focused_shadow : priv->unfocused_shadow) { cairo_rectangle_int_t shadow_bounds; /* 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); gdk_rectangle_union (&bounds, &shadow_bounds, &bounds); } origin.x = bounds.x; origin.y = bounds.y; origin.z = 0.0f; clutter_paint_volume_set_origin (volume, &origin); clutter_paint_volume_set_width (volume, bounds.width); clutter_paint_volume_set_height (volume, bounds.height); return TRUE; } static gboolean meta_window_actor_has_shadow (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaWindowType window_type = meta_window_get_window_type (priv->window); if (priv->no_shadow) return FALSE; /* 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_HORIZONTAL | META_MAXIMIZE_VERTICAL)) || 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 ARGB windows; eventually we should generate a * shadow from the input shape for such windows. */ if (priv->argb32 || priv->opacity != 0xff) return FALSE; /* * Add shadows to override redirect windows (e.g., Gtk menus). */ if (priv->window->override_redirect) return TRUE; /* * Don't put shadow around DND icon windows */ if (window_type == META_WINDOW_DND || window_type == META_WINDOW_DESKTOP) return FALSE; if (window_type == META_WINDOW_MENU #if 0 || window_type == META_WINDOW_DROPDOWN_MENU #endif ) return TRUE; #if 0 if (window_type == META_WINDOW_TOOLTIP) return TRUE; #endif return FALSE; } /** * meta_window_actor_get_x_window: (skip) * */ Window meta_window_actor_get_x_window (MetaWindowActor *self) { if (!self) return None; return self->priv->xwindow; } /** * meta_window_actor_get_meta_window: * * 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: * * Gets the ClutterActor that is used to display the contents of the window * * Return value: (transfer none): the #ClutterActor for the contents */ ClutterActor * meta_window_actor_get_texture (MetaWindowActor *self) { return self->priv->actor; } /** * meta_window_actor_is_destroyed: * * 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; } gboolean meta_window_actor_is_override_redirect (MetaWindowActor *self) { return meta_window_is_override_redirect (self->priv->window); } const char *meta_window_actor_get_description (MetaWindowActor *self) { /* * For windows managed by the WM, we just defer to the WM for the window * description. For override-redirect windows, we create the description * ourselves, but only on demand. */ if (self->priv->window) return meta_window_get_description (self->priv->window); if (G_UNLIKELY (self->priv->desc == NULL)) { self->priv->desc = g_strdup_printf ("Override Redirect (0x%x)", (guint) self->priv->xwindow); } return self->priv->desc; } /** * meta_window_actor_get_workspace: * @self: #MetaWindowActor * * Returns the index of workspace on which this window is located; if the * window is sticky, or is not currently located on any workspace, returns -1. * This function is deprecated and should not be used in newly written code; * meta_window_get_workspace() instead. * * Return value: (transfer none): index of workspace on which this window is * located. */ gint meta_window_actor_get_workspace (MetaWindowActor *self) { MetaWindowActorPrivate *priv; MetaWorkspace *workspace; if (!self) return -1; priv = self->priv; if (!priv->window || meta_window_is_on_all_workspaces (priv->window)) return -1; workspace = meta_window_get_workspace (priv->window); if (!workspace) return -1; return meta_workspace_index (workspace); } gboolean meta_window_actor_showing_on_its_workspace (MetaWindowActor *self) { if (!self) return FALSE; /* If override redirect: */ if (!self->priv->window) return TRUE; return meta_window_showing_on_its_workspace (self->priv->window); } static void meta_window_actor_freeze (MetaWindowActor *self) { self->priv->freeze_count++; } static void meta_window_actor_damage_all (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; CoglHandle texture; if (!priv->needs_damage_all) return; texture = meta_shaped_texture_get_texture (META_SHAPED_TEXTURE (priv->actor)); if (!priv->mapped || priv->needs_pixmap) return; meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor), 0, 0, cogl_texture_get_width (texture), cogl_texture_get_height (texture)); priv->needs_damage_all = FALSE; } static void meta_window_actor_thaw (MetaWindowActor *self) { self->priv->freeze_count--; if (G_UNLIKELY (self->priv->freeze_count < 0)) { g_warning ("Error in freeze/thaw accounting."); self->priv->freeze_count = 0; return; } if (self->priv->freeze_count) return; /* Since we ignore damage events while a window is frozen for certain effects * we may need to issue an update_area() covering the whole pixmap if we * don't know what real damage has happened. */ if (self->priv->needs_damage_all) meta_window_actor_damage_all (self); } gboolean meta_window_actor_effect_in_progress (MetaWindowActor *self) { return (self->priv->minimize_in_progress || self->priv->maximize_in_progress || self->priv->unmaximize_in_progress || self->priv->map_in_progress || self->priv->destroy_in_progress); } static void meta_window_actor_queue_create_pixmap (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; priv->needs_pixmap = TRUE; if (!priv->mapped) return; /* This will cause the compositor paint function to be run * if the actor is visible or a clone of the actor is visible. * if the actor isn't visible in any way, then we don't * need to repair the window anyways, and can wait until * the stage is redrawn for some other reason * * The compositor paint function repairs all windows. */ clutter_actor_queue_redraw (priv->actor); } static gboolean is_freeze_thaw_effect (gulong event) { switch (event) { case META_PLUGIN_DESTROY: case META_PLUGIN_MAXIMIZE: case META_PLUGIN_UNMAXIMIZE: return TRUE; break; default: return FALSE; } } static gboolean start_simple_effect (MetaWindowActor *self, gulong event) { MetaWindowActorPrivate *priv = self->priv; MetaCompScreen *info = meta_screen_get_compositor_data (priv->screen); gint *counter = NULL; gboolean use_freeze_thaw = FALSE; if (!info->plugin_mgr) return FALSE; switch (event) { case META_PLUGIN_MINIMIZE: counter = &priv->minimize_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_UNMAXIMIZE: case META_PLUGIN_MAXIMIZE: 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 (info->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; } meta_window_actor_sync_visibility (self); meta_window_actor_sync_actor_position (self); if (!meta_window_is_mapped (priv->window)) meta_window_actor_detach (self); if (priv->needs_pixmap) clutter_actor_queue_redraw (priv->actor); } void meta_window_actor_effect_completed (MetaWindowActor *self, gulong event) { MetaWindowActorPrivate *priv = self->priv; /* 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_MINIMIZE: { priv->minimize_in_progress--; if (priv->minimize_in_progress < 0) { g_warning ("Error in minimize accounting."); priv->minimize_in_progress = 0; } } 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; } 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; } break; case META_PLUGIN_UNMAXIMIZE: priv->unmaximize_in_progress--; if (priv->unmaximize_in_progress < 0) { g_warning ("Error in unmaximize accounting."); priv->unmaximize_in_progress = 0; } break; case META_PLUGIN_MAXIMIZE: priv->maximize_in_progress--; if (priv->maximize_in_progress < 0) { g_warning ("Error in maximize accounting."); priv->maximize_in_progress = 0; } break; case META_PLUGIN_SWITCH_WORKSPACE: g_assert_not_reached (); break; } if (is_freeze_thaw_effect (event)) meta_window_actor_thaw (self); if (!meta_window_actor_effect_in_progress (self)) meta_window_actor_after_effects (self); } /* Called to drop our reference to a window backing pixmap that we * previously obtained with XCompositeNameWindowPixmap. We do this * when the window is unmapped or when we want to update to a new * pixmap for a new size. */ static void meta_window_actor_detach (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaScreen *screen = priv->screen; MetaDisplay *display = meta_screen_get_display (screen); Display *xdisplay = meta_display_get_xdisplay (display); if (!priv->back_pixmap) return; /* Get rid of all references to the pixmap before freeing it; it's unclear whether * you are supposed to be able to free a GLXPixmap after freeing the underlying * pixmap, but it certainly doesn't work with current DRI/Mesa */ meta_shaped_texture_set_pixmap (META_SHAPED_TEXTURE (priv->actor), None); cogl_flush(); XFreePixmap (xdisplay, priv->back_pixmap); priv->back_pixmap = None; meta_window_actor_queue_create_pixmap (self); } gboolean meta_window_actor_should_unredirect (MetaWindowActor *self) { MetaWindow *metaWindow = meta_window_actor_get_meta_window (self); MetaScreen *screen = meta_window_get_screen (metaWindow); MetaWindowActorPrivate *priv = self->priv; if (meta_window_is_override_redirect (metaWindow) && priv->opacity == 0xff && !priv->argb32) { int screen_width, screen_height; MetaRectangle window_rect; meta_screen_get_size (screen, &screen_width, &screen_height); meta_window_get_outer_rect (metaWindow, &window_rect); if (window_rect.x == 0 && window_rect.y == 0 && window_rect.width == screen_width && window_rect.height == screen_height) return TRUE; else { int num_monitors = meta_screen_get_n_monitors (screen); int i; MetaRectangle monitor_rect; for (i = 0; i < num_monitors; i++) { meta_screen_get_monitor_geometry (screen , i, &monitor_rect); if (monitor_rect.x == window_rect.x && monitor_rect.y == window_rect.y && monitor_rect.width == window_rect.width && monitor_rect.height == window_rect.height) return TRUE; } } } return FALSE; } void meta_window_actor_set_redirected (MetaWindowActor *self, gboolean state) { MetaWindow *metaWindow = meta_window_actor_get_meta_window (self); MetaDisplay *display = meta_window_get_display (metaWindow); Display *xdisplay = meta_display_get_xdisplay (display); Window xwin = meta_window_actor_get_x_window (self); if (state) { meta_error_trap_push (display); XCompositeRedirectWindow (xdisplay, xwin, CompositeRedirectManual); meta_error_trap_pop (display); meta_window_actor_queue_create_pixmap (self); self->priv->unredirected = FALSE; } else { meta_error_trap_push (display); XCompositeUnredirectWindow (xdisplay, xwin, CompositeRedirectManual); meta_error_trap_pop (display); self->priv->unredirected = TRUE; } } void meta_window_actor_destroy (MetaWindowActor *self) { MetaWindow *window; MetaCompScreen *info; MetaWindowActorPrivate *priv; MetaWindowType window_type; priv = self->priv; window = priv->window; window_type = meta_window_get_window_type (window); meta_window_set_compositor_private (window, NULL); /* * We remove the window from internal lookup hashes and thus any other * unmap events etc fail */ info = meta_screen_get_compositor_data (priv->screen); info->windows = g_list_remove (info->windows, (gconstpointer) self); 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; /* * Once the window destruction is initiated we can no longer perform any * furter X-based operations. For example, if we have a Map effect running, * we cannot query the window geometry once the effect completes. So, flag * this. */ priv->no_more_x_calls = TRUE; if (!meta_window_actor_effect_in_progress (self)) clutter_actor_destroy (CLUTTER_ACTOR (self)); } void meta_window_actor_sync_actor_position (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaRectangle window_rect; meta_window_get_input_rect (priv->window, &window_rect); if (priv->last_width != window_rect.width || priv->last_height != window_rect.height) { priv->size_changed = TRUE; meta_window_actor_queue_create_pixmap (self); priv->last_width = window_rect.width; priv->last_height = window_rect.height; } 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); g_signal_emit (self, signals[POSITION_CHANGED], 0); } void meta_window_actor_show (MetaWindowActor *self, MetaCompEffect effect) { MetaWindowActorPrivate *priv; MetaCompScreen *info; gulong event; priv = self->priv; info = meta_screen_get_compositor_data (priv->screen); g_return_if_fail (!priv->visible); self->priv->visible = TRUE; event = 0; switch (effect) { case META_COMP_EFFECT_CREATE: event = META_PLUGIN_MAP; break; case META_COMP_EFFECT_UNMINIMIZE: /* FIXME: should have META_PLUGIN_UNMINIMIZE */ event = META_PLUGIN_MAP; break; case META_COMP_EFFECT_NONE: break; case META_COMP_EFFECT_DESTROY: case META_COMP_EFFECT_MINIMIZE: g_assert_not_reached(); } if (priv->redecorating || info->switch_workspace_in_progress || event == 0 || !start_simple_effect (self, event)) { clutter_actor_show_all (CLUTTER_ACTOR (self)); priv->redecorating = FALSE; } } void meta_window_actor_hide (MetaWindowActor *self, MetaCompEffect effect) { MetaWindowActorPrivate *priv; MetaCompScreen *info; gulong event; priv = self->priv; info = meta_screen_get_compositor_data (priv->screen); 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 (info->switch_workspace_in_progress) return; event = 0; 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: break; case META_COMP_EFFECT_UNMINIMIZE: case META_COMP_EFFECT_CREATE: g_assert_not_reached(); } if (event == 0 || !start_simple_effect (self, event)) clutter_actor_hide (CLUTTER_ACTOR (self)); } void meta_window_actor_maximize (MetaWindowActor *self, MetaRectangle *old_rect, MetaRectangle *new_rect) { MetaCompScreen *info = meta_screen_get_compositor_data (self->priv->screen); /* The window has already been resized (in order to compute new_rect), * which by side effect caused the actor to be resized. Restore it to the * old size and position */ clutter_actor_set_position (CLUTTER_ACTOR (self), old_rect->x, old_rect->y); clutter_actor_set_size (CLUTTER_ACTOR (self), old_rect->width, old_rect->height); self->priv->maximize_in_progress++; meta_window_actor_freeze (self); if (!info->plugin_mgr || !meta_plugin_manager_event_maximize (info->plugin_mgr, self, META_PLUGIN_MAXIMIZE, new_rect->x, new_rect->y, new_rect->width, new_rect->height)) { self->priv->maximize_in_progress--; meta_window_actor_thaw (self); } } void meta_window_actor_unmaximize (MetaWindowActor *self, MetaRectangle *old_rect, MetaRectangle *new_rect) { MetaCompScreen *info = meta_screen_get_compositor_data (self->priv->screen); /* The window has already been resized (in order to compute new_rect), * which by side effect caused the actor to be resized. Restore it to the * old size and position */ clutter_actor_set_position (CLUTTER_ACTOR (self), old_rect->x, old_rect->y); clutter_actor_set_size (CLUTTER_ACTOR (self), old_rect->width, old_rect->height); self->priv->unmaximize_in_progress++; meta_window_actor_freeze (self); if (!info->plugin_mgr || !meta_plugin_manager_event_maximize (info->plugin_mgr, self, META_PLUGIN_UNMAXIMIZE, new_rect->x, new_rect->y, new_rect->width, new_rect->height)) { self->priv->unmaximize_in_progress--; meta_window_actor_thaw (self); } } MetaWindowActor * meta_window_actor_new (MetaWindow *window) { MetaScreen *screen = meta_window_get_screen (window); MetaCompScreen *info = meta_screen_get_compositor_data (screen); MetaWindowActor *self; MetaWindowActorPrivate *priv; MetaFrame *frame; Window top_window; frame = meta_window_get_frame (window); if (frame) top_window = meta_frame_get_xwindow (frame); else top_window = meta_window_get_xwindow (window); meta_verbose ("add window: Meta %p, xwin 0x%x\n", window, (guint)top_window); self = g_object_new (META_TYPE_WINDOW_ACTOR, "meta-window", window, "x-window", top_window, "meta-screen", screen, NULL); priv = self->priv; priv->last_width = -1; priv->last_height = -1; priv->mapped = meta_window_toplevel_is_mapped (priv->window); if (priv->mapped) meta_window_actor_queue_create_pixmap (self); meta_window_actor_sync_actor_position (self); /* Hang our compositor window state off the MetaWindow for fast retrieval */ meta_window_set_compositor_private (window, G_OBJECT (self)); clutter_container_add_actor (CLUTTER_CONTAINER (info->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. */ info->windows = g_list_append (info->windows, self); return self; } void meta_window_actor_mapped (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; g_return_if_fail (!priv->mapped); priv->mapped = TRUE; meta_window_actor_queue_create_pixmap (self); } void meta_window_actor_unmapped (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; g_return_if_fail (priv->mapped); priv->mapped = FALSE; if (meta_window_actor_effect_in_progress (self)) return; meta_window_actor_detach (self); priv->needs_pixmap = FALSE; } static void meta_window_actor_clear_shape_region (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->shape_region) { cairo_region_destroy (priv->shape_region); priv->shape_region = NULL; } } static void meta_window_actor_clear_bounding_region (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->bounding_region) { cairo_region_destroy (priv->bounding_region); priv->bounding_region = NULL; } } static void meta_window_actor_clear_shadow_clip (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (priv->shadow_clip) { cairo_region_destroy (priv->shadow_clip); priv->shadow_clip = NULL; } } static void meta_window_actor_update_bounding_region_and_borders (MetaWindowActor *self, int width, int height) { MetaWindowActorPrivate *priv = self->priv; MetaFrameBorders borders; cairo_rectangle_int_t bounding_rectangle; meta_frame_calc_borders (priv->window->frame, &borders); bounding_rectangle.x = borders.invisible.left; bounding_rectangle.y = borders.invisible.top; width -= borders.invisible.left + borders.invisible.right; height -= borders.invisible.top + borders.invisible.bottom; bounding_rectangle.width = width; bounding_rectangle.height = height; if (priv->bounding_region != NULL) { cairo_rectangle_int_t old_bounding_rectangle; cairo_region_get_extents (priv->bounding_region, &old_bounding_rectangle); /* Because the bounding region doesn't include the invisible borders, * we need to make sure that the border sizes haven't changed before * short-circuiting early. */ if (bounding_rectangle.width == old_bounding_rectangle.width && bounding_rectangle.height == old_bounding_rectangle.height && priv->last_borders.invisible.left == borders.invisible.left && priv->last_borders.invisible.right == borders.invisible.right && priv->last_borders.invisible.top == borders.invisible.top && priv->last_borders.invisible.bottom == borders.invisible.bottom) return; } priv->last_borders = borders; meta_window_actor_clear_bounding_region (self); priv->bounding_region = cairo_region_create_rectangle (&bounding_rectangle); meta_window_actor_update_shape (self); g_signal_emit (self, signals[SIZE_CHANGED], 0); } static void meta_window_actor_update_shape_region (MetaWindowActor *self, cairo_region_t *region) { MetaWindowActorPrivate *priv = self->priv; meta_window_actor_clear_shape_region (self); /* region must be non-null */ priv->shape_region = region; cairo_region_reference (region); /* Our "shape_region" is called the "bounding region" in the X Shape * Extension Documentation. * * Our "bounding_region" is called the "bounding rectangle", which defines * the shape of the window as if it the window was unshaped. * * The X Shape extension requires that the "bounding region" can never * extend outside the "bounding rectangle", and says it must be implicitly * clipped before rendering. The region we get back hasn't been clipped. * We explicitly clip the region here. */ if (priv->bounding_region != NULL) cairo_region_intersect (priv->shape_region, priv->bounding_region); } /** * meta_window_actor_get_obscured_region: * @self: a #MetaWindowActor * * Gets the region that is completely obscured by the window. Coordinates * are relative to the upper-left of the window. * * Return value: (transfer none): the area obscured by the window, * %NULL is the same as an empty region. */ cairo_region_t * meta_window_actor_get_obscured_region (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; if (!priv->argb32 && priv->opacity == 0xff && priv->back_pixmap) { if (priv->shape_region) return priv->shape_region; else return priv->bounding_region; } else return NULL; } #if 0 /* Print out a region; useful for debugging */ static void dump_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 /** * meta_window_actor_set_visible_region: * @self: a #MetaWindowActor * @visible_region: the region of the screen that isn't completely * obscured. * * Provides a hint as to what areas of the window need to be * drawn. Regions not in @visible_region are completely obscured. * This will be set before painting then unset afterwards. */ void meta_window_actor_set_visible_region (MetaWindowActor *self, cairo_region_t *visible_region) { MetaWindowActorPrivate *priv = self->priv; meta_shaped_texture_set_clip_region (META_SHAPED_TEXTURE (priv->actor), visible_region); } /** * meta_window_actor_set_visible_region_beneath: * @self: a #MetaWindowActor * @visible_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 visible 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. */ void meta_window_actor_set_visible_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) { meta_window_actor_clear_shadow_clip (self); 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); } } } /** * meta_window_actor_reset_visible_regions: * @self: a #MetaWindowActor * * Unsets the regions set by meta_window_actor_reset_visible_region() and * meta_window_actor_reset_visible_region_beneath() */ void meta_window_actor_reset_visible_regions (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; meta_shaped_texture_set_clip_region (META_SHAPED_TEXTURE (priv->actor), NULL); meta_window_actor_clear_shadow_clip (self); } static void check_needs_pixmap (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaScreen *screen = priv->screen; MetaDisplay *display = meta_screen_get_display (screen); Display *xdisplay = meta_display_get_xdisplay (display); MetaCompScreen *info = meta_screen_get_compositor_data (screen); MetaCompositor *compositor; Window xwindow = priv->xwindow; if (!priv->needs_pixmap) return; if (!priv->mapped) return; if (xwindow == meta_screen_get_xroot (screen) || xwindow == clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage))) return; compositor = meta_display_get_compositor (display); if (priv->size_changed) { meta_window_actor_detach (self); priv->size_changed = FALSE; } meta_error_trap_push (display); if (priv->back_pixmap == None) { CoglHandle texture; meta_error_trap_push (display); priv->back_pixmap = XCompositeNameWindowPixmap (xdisplay, xwindow); if (meta_error_trap_pop_with_return (display) != Success) { /* Probably a BadMatch if the window isn't viewable; we could * GrabServer/GetWindowAttributes/NameWindowPixmap/UngrabServer/Sync * to avoid this, but there's no reason to take two round trips * when one will do. (We need that Sync if we want to handle failures * for any reason other than !viewable. That's unlikely, but maybe * we'll BadAlloc or something.) */ priv->back_pixmap = None; } if (priv->back_pixmap == None) { meta_verbose ("Unable to get named pixmap for %p\n", self); meta_window_actor_update_bounding_region_and_borders (self, 0, 0); goto out; } if (compositor->no_mipmaps) meta_shaped_texture_set_create_mipmaps (META_SHAPED_TEXTURE (priv->actor), FALSE); meta_shaped_texture_set_pixmap (META_SHAPED_TEXTURE (priv->actor), priv->back_pixmap); texture = meta_shaped_texture_get_texture (META_SHAPED_TEXTURE (priv->actor)); /* * This only works *after* actually setting the pixmap, so we have to * do it here. * See: http://bugzilla.clutter-project.org/show_bug.cgi?id=2236 */ if (G_UNLIKELY (!cogl_texture_pixmap_x11_is_using_tfp_extension (texture))) g_warning ("NOTE: Not using GLX TFP!\n"); meta_window_actor_update_bounding_region_and_borders (self, cogl_texture_get_width (texture), cogl_texture_get_height (texture)); } priv->needs_pixmap = FALSE; out: meta_error_trap_pop (display); } 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; if (!priv->mapped) return; /* 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) { if (priv->shape_region) priv->shadow_shape = meta_window_shape_new (priv->shape_region); else if (priv->bounding_region) priv->shadow_shape = meta_window_shape_new (priv->bounding_region); } if (priv->shadow_shape != NULL) { 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); } static gboolean is_frozen (MetaWindowActor *self) { return self->priv->freeze_count ? TRUE : FALSE; } void meta_window_actor_process_damage (MetaWindowActor *self, XDamageNotifyEvent *event) { MetaWindowActorPrivate *priv = self->priv; priv->received_damage = TRUE; /* Drop damage event for unredirected windows */ if (self->priv->unredirected) return; if (is_frozen (self)) { /* The window is frozen due to an effect in progress: we ignore damage * here on the off chance that this will stop the corresponding * texture_from_pixmap from being update. * * needs_damage_all tracks that some unknown damage happened while the * window was frozen so that when the window becomes unfrozen we can * issue a full window update to cover any lost damage. * * It should be noted that this is an unreliable mechanism since it's * quite likely that drivers will aim to provide a zero-copy * implementation of the texture_from_pixmap extension and in those cases * any drawing done to the window is always immediately reflected in the * texture regardless of damage event handling. */ priv->needs_damage_all = TRUE; return; } if (!priv->mapped || priv->needs_pixmap) return; meta_shaped_texture_update_area (META_SHAPED_TEXTURE (priv->actor), 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)); } } #define TAU (2*M_PI) static void install_corners (MetaWindow *window, MetaFrameBorders *borders, cairo_t *cr) { float top_left, top_right, bottom_left, bottom_right; int x, y; MetaRectangle outer; meta_frame_get_corner_radiuses (window->frame, &top_left, &top_right, &bottom_left, &bottom_right); meta_window_get_outer_rect (window, &outer); /* top left */ x = borders->invisible.left; y = borders->invisible.top; cairo_arc (cr, x + top_left, y + top_left, top_left, 2 * TAU / 4, 3 * TAU / 4); /* top right */ x = borders->invisible.left + outer.width - top_right; y = borders->invisible.top; cairo_arc (cr, x, y + top_right, top_right, 3 * TAU / 4, 4 * TAU / 4); /* bottom right */ x = borders->invisible.left + outer.width - bottom_right; y = borders->invisible.top + outer.height - bottom_right; cairo_arc (cr, x, y, bottom_right, 0 * TAU / 4, 1 * TAU / 4); /* bottom left */ x = borders->invisible.left; y = borders->invisible.top + outer.height - bottom_left; cairo_arc (cr, x + bottom_left, y, bottom_left, 1 * TAU / 4, 2 * TAU / 4); cairo_set_source_rgba (cr, 1, 1, 1, 1); cairo_fill (cr); } 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 w = x; while (mask_data[y * stride + w] == 255 && w < (rect.x + rect.width)) w++; if (w > 0) { meta_region_builder_add_rectangle (&builder, x, y, w - x, 1); x = w; } } } } return meta_region_builder_finish (&builder); } static void build_and_scan_frame_mask (MetaWindowActor *self, MetaFrameBorders *borders, cairo_rectangle_int_t *client_area, cairo_region_t *shape_region) { MetaWindowActorPrivate *priv = self->priv; guchar *mask_data; guint tex_width, tex_height; CoglHandle paint_tex, mask_texture; int stride; cairo_t *cr; cairo_surface_t *surface; paint_tex = meta_shaped_texture_get_texture (META_SHAPED_TEXTURE (priv->actor)); if (paint_tex == COGL_INVALID_HANDLE) 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); install_corners (priv->window, borders, 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_destroy (cr); cairo_surface_destroy (surface); if (meta_texture_rectangle_check (paint_tex)) { mask_texture = meta_texture_rectangle_new (tex_width, tex_height, COGL_PIXEL_FORMAT_A_8, COGL_PIXEL_FORMAT_A_8, stride, mask_data, NULL /* error */); } else { /* Note: we don't allow slicing for this texture because we * need to use it with multi-texturing which doesn't support * sliced textures */ mask_texture = cogl_texture_new_from_data (tex_width, tex_height, COGL_TEXTURE_NO_SLICING, COGL_PIXEL_FORMAT_A_8, COGL_PIXEL_FORMAT_ANY, stride, mask_data); } meta_shaped_texture_set_mask_texture (META_SHAPED_TEXTURE (priv->actor), mask_texture); cogl_handle_unref (mask_texture); g_free (mask_data); } static void check_needs_reshape (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaScreen *screen = priv->screen; MetaDisplay *display = meta_screen_get_display (screen); MetaFrameBorders borders; cairo_region_t *region; cairo_rectangle_int_t client_area; if (!priv->needs_reshape) return; meta_frame_calc_borders (priv->window->frame, &borders); client_area.x = borders.total.left; client_area.y = borders.total.top; client_area.width = priv->window->rect.width; client_area.height = priv->window->rect.height; meta_shaped_texture_set_mask_texture (META_SHAPED_TEXTURE (priv->actor), COGL_INVALID_HANDLE); meta_window_actor_clear_shape_region (self); #ifdef HAVE_SHAPE if (priv->window->has_shape) { /* Translate the set of XShape rectangles that we * get from the X server to a cairo_region. */ Display *xdisplay = meta_display_get_xdisplay (display); XRectangle *rects; int n_rects, ordering; cairo_rectangle_int_t *cairo_rects = NULL; meta_error_trap_push (display); rects = XShapeGetRectangles (xdisplay, priv->window->xwindow, ShapeBounding, &n_rects, &ordering); meta_error_trap_pop (display); if (rects) { int i; cairo_rects = g_new (cairo_rectangle_int_t, n_rects); for (i = 0; i < n_rects; i ++) { cairo_rects[i].x = rects[i].x + client_area.x; cairo_rects[i].y = rects[i].y + client_area.y; cairo_rects[i].width = rects[i].width; cairo_rects[i].height = rects[i].height; } XFree (rects); } region = cairo_region_create_rectangles (cairo_rects, n_rects); g_free (cairo_rects); } else #endif { /* 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); } /* This takes the region, generates a mask using GTK+ * and scans the mask looking for all opaque pixels, * adding it to region. */ build_and_scan_frame_mask (self, &borders, &client_area, region); meta_window_actor_update_shape_region (self, region); cairo_region_destroy (region); priv->needs_reshape = FALSE; meta_window_actor_invalidate_shadow (self); } void meta_window_actor_update_shape (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; priv->needs_reshape = TRUE; if (priv->shadow_shape != NULL) { meta_window_shape_unref (priv->shadow_shape); priv->shadow_shape = NULL; } clutter_actor_queue_redraw (priv->actor); } void meta_window_actor_pre_paint (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaScreen *screen = priv->screen; MetaDisplay *display = meta_screen_get_display (screen); Display *xdisplay = meta_display_get_xdisplay (display); 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 (priv->unredirected) { /* Nothing to do here until/if the window gets redirected again */ return; } if (priv->received_damage) { meta_error_trap_push (display); XDamageSubtract (xdisplay, priv->damage, None, None); meta_error_trap_pop (display); /* We need to make sure that any X drawing that happens before the * XDamageSubtract() above is visible to subsequent GL rendering; * the only standardized way to do this is EXT_x11_sync_object, * which isn't yet widely available. For now, we count on details * of Xorg and the open source drivers, and hope for the best * otherwise. * * Xorg and open source driver specifics: * * The X server makes sure to flush drawing to the kernel before * sending out damage events, but since we use DamageReportBoundingBox * there may be drawing between the last damage event and the * XDamageSubtract() that needs to be flushed as well. * * Xorg always makes sure that drawing is flushed to the kernel * before writing events or responses to the client, so any round trip * request at this point is sufficient to flush the GLX buffers. */ XSync (xdisplay, False); priv->received_damage = FALSE; } check_needs_pixmap (self); check_needs_reshape (self); check_needs_shadow (self); } void meta_window_actor_invalidate_shadow (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; priv->recompute_focused_shadow = TRUE; priv->recompute_unfocused_shadow = TRUE; clutter_actor_queue_redraw (CLUTTER_ACTOR (self)); } void meta_window_actor_update_opacity (MetaWindowActor *self) { MetaWindowActorPrivate *priv = self->priv; MetaDisplay *display = meta_screen_get_display (priv->screen); MetaCompositor *compositor = meta_display_get_compositor (display); Window xwin = meta_window_get_xwindow (priv->window); gulong value; guint8 opacity; if (meta_prop_get_cardinal (display, xwin, compositor->atom_net_wm_window_opacity, &value)) { opacity = (guint8)((gfloat)value * 255.0 / ((gfloat)0xffffffff)); } else opacity = 255; self->priv->opacity = opacity; clutter_actor_set_opacity (self->priv->actor, opacity); }