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Eliminate all delays in updates; let the X server scheduling handle things.

This commit is contained in:
Keith Packard 2003-11-14 08:29:37 +00:00
parent bb2f664686
commit f0000349e7
2 changed files with 19 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2003-11-14 Keith Packard <keithp@keithp.com>
* xcompmgr.c: (main):
Eliminate all delays in updates; let the X server scheduling
handle things.
2003-11-13 Keith Packard <keithp@keithp.com>
* xcompmgr.c:

14
xcompmgr.c
View File

@ -768,7 +768,7 @@ time_in_millis ()
return(tp.tv_sec * 1000) + (tp.tv_usec / 1000);
}
#define INTERVAL 10
#define INTERVAL 0
main ()
{
@ -792,7 +792,9 @@ main ()
int n;
int last_update;
int now;
#if INTERVAL
int timeout;
#endif
dpy = XOpenDisplay (0);
if (!dpy)
@ -863,15 +865,21 @@ main ()
XFree (children);
XUngrabServer (dpy);
paint_all (dpy, None);
#if INTERVAL
last_update = time_in_millis ();
#endif
for (;;)
{
#if INTERVAL
int busy_start = 0;
#endif
/* dump_wins (); */
do {
XNextEvent (dpy, &ev);
#if INTERVAL
if (!busy_start)
busy_start = time_in_millis();
#endif
/* printf ("event %d\n", ev.type); */
switch (ev.type) {
case CreateNotify:
@ -943,6 +951,7 @@ main ()
break;
}
} while (XEventsQueued (dpy, QueuedAfterReading));
#if INTERVAL
now = time_in_millis ();
/* printf ("\t\tbusy %d\n", now - busy_start); */
timeout = INTERVAL - (now - last_update);
@ -954,11 +963,14 @@ main ()
if (n > 0 && (ufd.revents & POLLIN) && XEventsQueued (dpy, QueuedAfterReading))
continue;
}
#endif
if (allDamage)
{
#if INTERVAL
int old_update = last_update;
last_update = time_in_millis();
/* printf ("delta %d\n", last_update - old_update); */
#endif
paint_all (dpy, allDamage);
allDamage = None;
}