Esempio n. 1
0
/**
 * _clutter_master_clock_ensure_next_iteration:
 * @master_clock: a #ClutterMasterClock
 *
 * Ensures that the master clock will run at least one iteration
 */
void
_clutter_master_clock_ensure_next_iteration (ClutterMasterClock *master_clock)
{
  g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));

  CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->ensure_next_iteration (master_clock);
}
Esempio n. 2
0
/*
 * _clutter_master_clock_start_running:
 * @master_clock: a #ClutterMasterClock
 *
 * Called when we have events or redraws to process; if the clock
 * is stopped, does the processing necessary to wake it up again.
 */
void
_clutter_master_clock_start_running (ClutterMasterClock *master_clock)
{
  g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));

  CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->start_running (master_clock);
}
Esempio n. 3
0
/**
 * _clutter_master_clock_ensure_next_iteration:
 * @master_clock: a #ClutterMasterClock
 *
 * Ensures that the master clock will run at least one iteration
 */
void
_clutter_master_clock_ensure_next_iteration (ClutterMasterClock *master_clock)
{
  g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));

  master_clock->ensure_next_iteration = TRUE;
}
Esempio n. 4
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/*
 * _clutter_master_clock_add_timeline:
 * @master_clock: a #ClutterMasterClock
 * @timeline: a #ClutterTimeline
 *
 * Adds @timeline to the list of playing timelines held by the master
 * clock.
 */
void
_clutter_master_clock_add_timeline (ClutterMasterClock *master_clock,
                                    ClutterTimeline    *timeline)
{
  g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));

  CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->add_timeline (master_clock,
                                                               timeline);
}
Esempio n. 5
0
void
_clutter_master_clock_set_paused (ClutterMasterClock *master_clock,
                                  gboolean            paused)
{
  g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));

  CLUTTER_MASTER_CLOCK_GET_IFACE (master_clock)->set_paused (master_clock,
                                                             !!paused);
}
Esempio n. 6
0
/*
 * _clutter_master_clock_advance:
 * @master_clock: a #ClutterMasterClock
 *
 * Advances all the timelines held by the master clock. This function
 * should be called before calling clutter_redraw() to make sure that
 * all the timelines are advanced and the scene is updated.
 */
void
_clutter_master_clock_advance (ClutterMasterClock *master_clock)
{
  GSList *timelines, *l;

  CLUTTER_STATIC_TIMER (master_timeline_advance,
                        "Master Clock",
                        "Timelines Advancement",
                        "The time spent advancing all timelines",
                        0);

  g_return_if_fail (CLUTTER_IS_MASTER_CLOCK (master_clock));

  CLUTTER_TIMER_START (_clutter_uprof_context, master_timeline_advance);

  /* we protect ourselves from timelines being removed during
   * the advancement by other timelines by copying the list of
   * timelines, taking a reference on them, iterating over the
   * copied list and then releasing the reference.
   *
   * we cannot simply take a reference on the timelines and still
   * use the list held by the master clock because the do_tick()
   * might result in the creation of a new timeline, which gets
   * added at the end of the list with no reference increase and
   * thus gets disposed at the end of the iteration.
   *
   * this implies that a newly added timeline will not be advanced
   * by this clock iteration, which is perfectly fine since we're
   * in its first cycle.
   *
   * we also cannot steal the master clock timelines list because
   * a timeline might be removed as the direct result of do_tick()
   * and remove_timeline() would not find the timeline, failing
   * and leaving a dangling pointer behind.
   */
  timelines = g_slist_copy (master_clock->timelines);
  g_slist_foreach (timelines, (GFunc) g_object_ref, NULL);

  for (l = timelines; l != NULL; l = l->next)
    _clutter_timeline_do_tick (l->data, master_clock->cur_tick / 1000);

  g_slist_foreach (timelines, (GFunc) g_object_unref, NULL);
  g_slist_free (timelines);

  CLUTTER_TIMER_STOP (_clutter_uprof_context, master_timeline_advance);
}