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Move sync alarms to be per-window and permanent

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Instead of creating a new alarm each time we resize a window
interactively, create an alarm the first time we resize a window
and keep it around permanently until we unmanage the window.
Doing it this way will be useful when we allow the application to
spontaneously generate sync request updates to indicate
frames it is drawing.

https://bugzilla.gnome.org/show_bug.cgi?id=685463
This commit is contained in:
Owen W. Taylor 2011-06-08 11:26:03 -04:00
parent c9343e3ee3
commit 7743c70d47
5 changed files with 143 additions and 76 deletions
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14
src/core/display-private.h
View File

@ -222,10 +222,6 @@ struct _MetaDisplay
#ifdef HAVE_XKB
int xkb_base_event_type;
guint32 last_bell_time;
#endif
#ifdef HAVE_XSYNC
/* alarm monitoring client's _NET_WM_SYNC_REQUEST_COUNTER */
XSyncAlarm grab_sync_request_alarm;
#endif
int grab_resize_timeout_id;
@ -375,6 +371,16 @@ void meta_display_register_x_window (MetaDisplay *display,
void meta_display_unregister_x_window (MetaDisplay *display,
Window xwindow);
#ifdef HAVE_XSYNC
MetaWindow* meta_display_lookup_sync_alarm (MetaDisplay *display,
XSyncAlarm alarm);
void meta_display_register_sync_alarm (MetaDisplay *display,
XSyncAlarm *alarmp,
MetaWindow *window);
void meta_display_unregister_sync_alarm (MetaDisplay *display,
XSyncAlarm alarm);
#endif /* HAVE_XSYNC */
void meta_display_notify_window_created (MetaDisplay *display,
MetaWindow *window);

117
src/core/display.c
View File

@ -525,10 +525,6 @@ meta_display_open (void)
the_display->allow_terminal_deactivation = TRUE; /* Only relevant for when a
terminal has the focus */
#ifdef HAVE_XSYNC
the_display->grab_sync_request_alarm = None;
#endif
/* FIXME copy the checks from GDK probably */
the_display->static_gravity_works = g_getenv ("MUTTER_USE_STATIC_GRAVITY") != NULL;
@ -1954,14 +1950,19 @@ event_callback (XEvent *event,
#ifdef HAVE_XSYNC
if (META_DISPLAY_HAS_XSYNC (display) &&
event->type == (display->xsync_event_base + XSyncAlarmNotify) &&
((XSyncAlarmNotifyEvent*)event)->alarm == display->grab_sync_request_alarm)
event->type == (display->xsync_event_base + XSyncAlarmNotify))
{
XSyncValue value = ((XSyncAlarmNotifyEvent*)event)->counter_value;
guint64 new_counter_value;
new_counter_value = XSyncValueLow32 (value) + ((gint64)XSyncValueHigh32 (value) << 32);
meta_window_update_sync_request_counter (display->grab_window, new_counter_value);
filter_out_event = TRUE; /* GTK doesn't want to see this really */
MetaWindow *alarm_window = meta_display_lookup_sync_alarm (display,
((XSyncAlarmNotifyEvent*)event)->alarm);
if (alarm_window != NULL)
{
XSyncValue value = ((XSyncAlarmNotifyEvent*)event)->counter_value;
guint64 new_counter_value;
new_counter_value = XSyncValueLow32 (value) + ((gint64)XSyncValueHigh32 (value) << 32);
meta_window_update_sync_request_counter (alarm_window, new_counter_value);
filter_out_event = TRUE; /* GTK doesn't want to see this really */
}
}
#endif /* HAVE_XSYNC */
@ -3589,6 +3590,39 @@ meta_display_unregister_x_window (MetaDisplay *display,
remove_pending_pings_for_window (display, xwindow);
}
#ifdef HAVE_XSYNC
/* We store sync alarms in the window ID hash table, because they are
* just more types of XIDs in the same global space, but we have
* typesafe functions to register/unregister for readability.
*/
MetaWindow*
meta_display_lookup_sync_alarm (MetaDisplay *display,
XSyncAlarm alarm)
{
return g_hash_table_lookup (display->xids, &alarm);
}
void
meta_display_register_sync_alarm (MetaDisplay *display,
XSyncAlarm *alarmp,
MetaWindow *window)
{
g_return_if_fail (g_hash_table_lookup (display->xids, alarmp) == NULL);
g_hash_table_insert (display->xids, alarmp, window);
}
void
meta_display_unregister_sync_alarm (MetaDisplay *display,
XSyncAlarm alarm)
{
g_return_if_fail (g_hash_table_lookup (display->xids, &alarm) != NULL);
g_hash_table_remove (display->xids, &alarm);
}
#endif /* HAVE_XSYNC */
void
meta_display_notify_window_created (MetaDisplay *display,
MetaWindow *window)
@ -3902,7 +3936,6 @@ meta_display_begin_grab_op (MetaDisplay *display,
display->grab_motion_notify_time = 0;
display->grab_old_window_stacking = NULL;
#ifdef HAVE_XSYNC
display->grab_sync_request_alarm = None;
display->grab_last_user_action_was_snap = FALSE;
#endif
display->grab_frame_action = frame_action;
@ -3923,55 +3956,11 @@ meta_display_begin_grab_op (MetaDisplay *display,
#ifdef HAVE_XSYNC
if ( meta_grab_op_is_resizing (display->grab_op) &&
display->grab_window->sync_request_counter != None)
display->grab_window->sync_request_counter != None)
{
XSyncAlarmAttributes values;
XSyncValue init;
meta_error_trap_push_with_return (display);
/* Set the counter to 0, so we know that the application's
* responses to the client messages will always trigger
* a PositiveTransition
*/
XSyncIntToValue (&init, 0);
XSyncSetCounter (display->xdisplay,
display->grab_window->sync_request_counter, init);
display->grab_window->sync_request_serial = 0;
display->grab_window->sync_request_time.tv_sec = 0;
display->grab_window->sync_request_time.tv_usec = 0;
values.trigger.counter = display->grab_window->sync_request_counter;
values.trigger.value_type = XSyncAbsolute;
values.trigger.test_type = XSyncPositiveTransition;
XSyncIntToValue (&values.trigger.wait_value,
display->grab_window->sync_request_serial + 1);
/* After triggering, increment test_value by this.
* (NOT wait_value above)
*/
XSyncIntToValue (&values.delta, 1);
/* we want events (on by default anyway) */
values.events = True;
display->grab_sync_request_alarm = XSyncCreateAlarm (display->xdisplay,
XSyncCACounter |
XSyncCAValueType |
XSyncCAValue |
XSyncCATestType |
XSyncCADelta |
XSyncCAEvents,
&values);
if (meta_error_trap_pop_with_return (display) != Success)
display->grab_sync_request_alarm = None;
meta_topic (META_DEBUG_RESIZING,
"Created update alarm 0x%lx\n",
display->grab_sync_request_alarm);
meta_window_create_sync_request_alarm (display->grab_window);
window->sync_request_time.tv_sec = 0;
window->sync_request_time.tv_usec = 0;
}
#endif
}
@ -4084,14 +4073,6 @@ meta_display_end_grab_op (MetaDisplay *display,
meta_screen_ungrab_all_keys (display->grab_screen, timestamp);
}
#ifdef HAVE_XSYNC
if (display->grab_sync_request_alarm != None)
{
XSyncDestroyAlarm (display->xdisplay,
display->grab_sync_request_alarm);
display->grab_sync_request_alarm = None;
}
#endif /* HAVE_XSYNC */
display->grab_timestamp = 0;
display->grab_window = NULL;

4
src/core/window-private.h
View File

@ -360,6 +360,8 @@ struct _MetaWindow
XSyncCounter sync_request_counter;
guint sync_request_serial;
GTimeVal sync_request_time;
/* alarm monitoring client's _NET_WM_SYNC_REQUEST_COUNTER */
XSyncAlarm sync_request_alarm;
#endif
/* Number of UnmapNotify that are caused by us, if
@ -633,6 +635,8 @@ void meta_window_refresh_resize_popup (MetaWindow *window);
void meta_window_free_delete_dialog (MetaWindow *window);
void meta_window_create_sync_request_alarm (MetaWindow *window);
void meta_window_destroy_sync_request_alarm (MetaWindow *window);
void meta_window_update_keyboard_resize (MetaWindow *window,
gboolean update_cursor);

2
src/core/window-props.c
View File

@ -920,6 +920,8 @@ reload_update_counter (MetaWindow *window,
{
if (value->type != META_PROP_VALUE_INVALID)
{
meta_window_destroy_sync_request_alarm (window);
#ifdef HAVE_XSYNC
XSyncCounter counter = value->v.xcounter;

80
src/core/window.c
View File

@ -1021,6 +1021,7 @@ meta_window_new_with_attrs (MetaDisplay *display,
window->sync_request_serial = 0;
window->sync_request_time.tv_sec = 0;
window->sync_request_time.tv_usec = 0;
window->sync_request_alarm = None;
#endif
window->screen = screen;
@ -1824,6 +1825,8 @@ meta_window_unmanage (MetaWindow *window,
if (!window->override_redirect)
meta_stack_remove (window->screen->stack, window);
meta_window_destroy_sync_request_alarm (window);
if (window->frame)
meta_window_destroy_frame (window);
@ -4437,6 +4440,76 @@ static_gravity_works (MetaDisplay *display)
return display->static_gravity_works;
}
void
meta_window_create_sync_request_alarm (MetaWindow *window)
{
#ifdef HAVE_XSYNC
XSyncAlarmAttributes values;
XSyncValue init;
if (window->sync_request_counter == None ||
window->sync_request_alarm != None)
return;
meta_error_trap_push_with_return (window->display);
/* Set the counter to 0, so we know that the application's
* responses to the client messages will always trigger
* a PositiveTransition
*/
XSyncIntToValue (&init, 0);
XSyncSetCounter (window->display->xdisplay,
window->sync_request_counter, init);
window->sync_request_serial = 0;
values.trigger.counter = window->sync_request_counter;
values.trigger.test_type = XSyncPositiveTransition;
/* Initialize to one greater than the current value */
values.trigger.value_type = XSyncRelative;
XSyncIntToValue (&values.trigger.wait_value, 1);
/* After triggering, increment test_value by this until
* until the test condition is false */
XSyncIntToValue (&values.delta, 1);
/* we want events (on by default anyway) */
values.events = True;
window->sync_request_alarm = XSyncCreateAlarm (window->display->xdisplay,
XSyncCACounter |
XSyncCAValueType |
XSyncCAValue |
XSyncCATestType |
XSyncCADelta |
XSyncCAEvents,
&values);
if (meta_error_trap_pop_with_return (window->display) == Success)
meta_display_register_sync_alarm (window->display, &window->sync_request_alarm, window);
else
{
window->sync_request_alarm = None;
window->sync_request_counter = None;
}
#endif
}
void
meta_window_destroy_sync_request_alarm (MetaWindow *window)
{
#ifdef HAVE_XSYNC
if (window->sync_request_alarm != None)
{
/* Has to be unregistered _before_ clearing the structure field */
meta_display_unregister_sync_alarm (window->display, window->sync_request_alarm);
XSyncDestroyAlarm (window->display->xdisplay,
window->sync_request_alarm);
window->sync_request_alarm = None;
}
#endif /* HAVE_XSYNC */
}
#ifdef HAVE_XSYNC
static void
send_sync_request (MetaWindow *window)
@ -4997,8 +5070,9 @@ meta_window_move_resize_internal (MetaWindow *window,
meta_error_trap_push (window->display);
#ifdef HAVE_XSYNC
if (window->sync_request_counter != None &&
window->display->grab_sync_request_alarm != None &&
if (window == window->display->grab_window &&
window->sync_request_counter != None &&
window->sync_request_alarm != None &&
window->sync_request_time.tv_usec == 0 &&
window->sync_request_time.tv_sec == 0)
{
@ -8618,7 +8692,7 @@ check_moveresize_frequency (MetaWindow *window,
#ifdef HAVE_XSYNC
if (!window->disable_sync &&
window->display->grab_sync_request_alarm != None)
window->sync_request_alarm != None)
{
if (window->sync_request_time.tv_sec != 0 ||
window->sync_request_time.tv_usec != 0)