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Greatly reduce redundant window refreshing

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This should substantially reduce CPU usage and possibly fix some
issues with interface jittering/flashing
This commit is contained in:
jfreegman
2021-11-19 17:54:35 -05:00
parent 13337041ce
commit f3f81111c8
10 changed files with 134 additions and 21 deletions
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36
src/toxic.c
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@ -1072,6 +1072,37 @@ static void do_toxic(Tox *m)
pthread_mutex_unlock(&Winthread.lock);
}
/* Set interface refresh flag. This should be called whenever the interface changes.
*
* This function is not thread safe.
*/
void flag_interface_refresh(void)
{
Winthread.flag_refresh = 1;
Winthread.last_refresh_flag = get_unix_time();
}
/* How long we wait to idle interface refreshing after last flag set. Should be no less than 2. */
#define ACTIVE_WIN_REFRESH_TIMEOUT 2
static void poll_interface_refresh_flag(void)
{
pthread_mutex_lock(&Winthread.lock);
bool flag = Winthread.flag_refresh;
time_t t = Winthread.last_refresh_flag;
pthread_mutex_unlock(&Winthread.lock);
if (flag == 1 && timed_out(t, ACTIVE_WIN_REFRESH_TIMEOUT)) {
pthread_mutex_lock(&Winthread.lock);
Winthread.flag_refresh = 0;
pthread_mutex_unlock(&Winthread.lock);
}
}
/* How often we refresh windows that aren't focused */
#define INACTIVE_WIN_REFRESH_RATE 10
void *thread_winref(void *data)
@ -1079,11 +1110,12 @@ void *thread_winref(void *data)
Tox *m = (Tox *) data;
uint8_t draw_count = 0;
init_signal_catchers();
while (true) {
draw_active_window(m);
draw_count++;
draw_active_window(m);
if (Winthread.flag_resize) {
on_window_resize();
@ -1097,6 +1129,8 @@ void *thread_winref(void *data)
pthread_mutex_lock(&Winthread.lock);
exit_toxic_success(m);
}
poll_interface_refresh_flag();
}
}