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Fix corner cases where _NET_WM_FRAME_DRAWN might be missed
The WM spec requires _NET_WM_FRAME_DRAWN to *always* be sent when there is an appropriate update to the sync counter value. We were potentially missing _NET_WM_FRAME_DRAWN when an application did a spontaneous update during an interactive resize and during effects. Refactor the code to always send _NET_WM_FRAME_DRAWN, even when a window is frozen. https://bugzilla.gnome.org/show_bug.cgi?id=693833
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@ -764,6 +764,21 @@ meta_compositor_set_updates_frozen (MetaCompositor *compositor,
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meta_window_actor_set_updates_frozen (window_actor, updates_frozen);
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}
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void
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meta_compositor_queue_frame_drawn (MetaCompositor *compositor,
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MetaWindow *window,
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gboolean no_delay_frame)
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{
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MetaWindowActor *window_actor;
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DEBUG_TRACE ("meta_compositor_queue_frame_drawn\n");
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window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
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if (!window_actor)
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return;
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meta_window_actor_queue_frame_drawn (window_actor, no_delay_frame);
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}
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static gboolean
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is_grabbed_event (MetaDisplay *display,
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XEvent *event)
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@ -51,6 +51,8 @@ void meta_window_actor_mapped (MetaWindowActor *self);
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void meta_window_actor_unmapped (MetaWindowActor *self);
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void meta_window_actor_set_updates_frozen (MetaWindowActor *self,
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gboolean updates_frozen);
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void meta_window_actor_queue_frame_drawn (MetaWindowActor *self,
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gboolean no_delay_frame);
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cairo_region_t *meta_window_actor_get_obscured_region (MetaWindowActor *self);
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@ -107,6 +107,7 @@ struct _MetaWindowActorPrivate
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guint needs_damage_all : 1;
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guint received_damage : 1;
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guint repaint_scheduled : 1;
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/* If set, the client needs to be sent a _NET_WM_FRAME_DRAWN
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* client message using the most recent frame in ->frames */
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@ -932,6 +933,7 @@ meta_window_actor_damage_all (MetaWindowActor *self)
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cogl_texture_get_height (texture));
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priv->needs_damage_all = FALSE;
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priv->repaint_scheduled = TRUE;
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}
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static void
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@ -961,17 +963,41 @@ meta_window_actor_thaw (MetaWindowActor *self)
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* don't know what real damage has happened. */
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if (self->priv->needs_damage_all)
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meta_window_actor_damage_all (self);
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else if (self->priv->needs_frame_drawn != 0)
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}
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void
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meta_window_actor_queue_frame_drawn (MetaWindowActor *self,
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gboolean no_delay_frame)
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{
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MetaWindowActorPrivate *priv = self->priv;
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FrameData *frame = g_slice_new0 (FrameData);
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priv->needs_frame_drawn = TRUE;
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frame->sync_request_serial = priv->window->sync_request_serial;
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priv->frames = g_list_prepend (priv->frames, frame);
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if (no_delay_frame)
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{
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/* A frame was marked by the client without actually doing any damage;
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* we need to make sure that the pre_paint/post_paint functions
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* get called, enabling us to send a _NET_WM_FRAME_DRAWN. We do a
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* 1-pixel redraw to get consistent timing with non-empty frames.
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ClutterActor *stage = clutter_actor_get_stage (CLUTTER_ACTOR (self));
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clutter_stage_skip_sync_delay (CLUTTER_STAGE (stage));
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}
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if (!priv->repaint_scheduled)
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{
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/* A frame was marked by the client without actually doing any
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* damage, or while we had the window frozen (e.g. during an
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* interactive resize.) We need to make sure that the
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* pre_paint/post_paint functions get called, enabling us to
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* send a _NET_WM_FRAME_DRAWN. We do a 1-pixel redraw to get
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* consistent timing with non-empty frames.
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*/
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if (self->priv->mapped && !self->priv->needs_pixmap)
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if (priv->mapped && !priv->needs_pixmap)
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{
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const cairo_rectangle_int_t clip = { 0, 0, 1, 1 };
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clutter_actor_queue_redraw_with_clip (self->priv->actor, &clip);
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clutter_actor_queue_redraw_with_clip (priv->actor, &clip);
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priv->repaint_scheduled = TRUE;
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}
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}
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}
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@ -1949,6 +1975,7 @@ meta_window_actor_process_damage (MetaWindowActor *self,
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event->area.y,
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event->area.width,
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event->area.height);
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priv->repaint_scheduled = TRUE;
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}
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void
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@ -2350,25 +2377,6 @@ meta_window_actor_handle_updates (MetaWindowActor *self)
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check_needs_pixmap (self);
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check_needs_reshape (self);
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check_needs_shadow (self);
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if (priv->window->needs_frame_drawn)
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{
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FrameData *frame = g_slice_new0 (FrameData);
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priv->needs_frame_drawn = TRUE;
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frame->sync_request_serial = priv->window->sync_request_serial;
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priv->frames = g_list_prepend (priv->frames, frame);
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priv->window->needs_frame_drawn = FALSE;
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if (priv->window->no_delay_frame)
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{
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ClutterActor *stage = clutter_actor_get_stage (CLUTTER_ACTOR (self));
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clutter_stage_skip_sync_delay (CLUTTER_STAGE (stage));
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}
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}
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}
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void
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@ -2396,6 +2404,8 @@ meta_window_actor_post_paint (MetaWindowActor *self)
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{
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MetaWindowActorPrivate *priv = self->priv;
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priv->repaint_scheduled = FALSE;
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if (priv->needs_frame_drawn)
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{
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MetaScreen *screen = priv->screen;
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@ -356,15 +356,6 @@ struct _MetaWindow
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* also handles application frames */
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guint extended_sync_request_counter : 1;
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/* if TRUE, we still need to send a _NET_WM_FRAME_DRAWN message for the
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* last update the sync request counter */
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guint needs_frame_drawn : 1;
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/* if TRUE, the frame that was just drawn was drawn without any delay
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* on the client's part and thus is high-priority - if we add delay
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* we might cause the client to miss it's target frame rate */
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guint no_delay_frame : 1;
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/* Note: can be NULL */
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GSList *struts;
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@ -9510,11 +9510,13 @@ void
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meta_window_update_sync_request_counter (MetaWindow *window,
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gint64 new_counter_value)
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{
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if (window->extended_sync_request_counter &&
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new_counter_value % 2 == 0)
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gboolean needs_frame_drawn = FALSE;
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gboolean no_delay_frame = FALSE;
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if (window->extended_sync_request_counter && new_counter_value % 2 == 0)
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{
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window->needs_frame_drawn = TRUE;
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window->no_delay_frame = new_counter_value == window->sync_request_serial + 1;
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needs_frame_drawn = TRUE;
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no_delay_frame = new_counter_value == window->sync_request_serial + 1;
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}
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window->sync_request_serial = new_counter_value;
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@ -9547,6 +9549,10 @@ meta_window_update_sync_request_counter (MetaWindow *window,
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window->display->grab_latest_motion_y,
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TRUE);
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}
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if (needs_frame_drawn)
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meta_compositor_queue_frame_drawn (window->display->compositor, window,
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no_delay_frame);
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}
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#endif /* HAVE_XSYNC */
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@ -156,6 +156,9 @@ void meta_compositor_sync_window_geometry (MetaCompositor *compositor,
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void meta_compositor_set_updates_frozen (MetaCompositor *compositor,
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MetaWindow *window,
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gboolean updates_frozen);
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void meta_compositor_queue_frame_drawn (MetaCompositor *compositor,
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MetaWindow *window,
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gboolean no_delay_frame);
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void meta_compositor_sync_stack (MetaCompositor *compositor,
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MetaScreen *screen,
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