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relax LinuxVST GUI event loop.

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it was spinning at 100Hz.
This commit is contained in:
Robin Gareus 2015-05-27 23:16:59 +02:00
parent d98af1785a
commit 2d311979e3
1 changed files with 11 additions and 0 deletions
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11
gtk2_ardour/linux_vst_gui_support.cc
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@ -348,12 +348,19 @@ void* gui_event_loop (void* ptr)
/*Look at the XEvent queue - if there are any XEvents we need to handle them, /*Look at the XEvent queue - if there are any XEvents we need to handle them,
including passing them to all the plugin (eventProcs) we are currently managing*/ including passing them to all the plugin (eventProcs) we are currently managing*/
bool may_sleep = true;
if(LXVST_XDisplay) if(LXVST_XDisplay)
{ {
/*See if there are any events in the queue*/ /*See if there are any events in the queue*/
int num_events = XPending(LXVST_XDisplay); int num_events = XPending(LXVST_XDisplay);
if (num_events > 0) {
// keep dispatching events as fast as possible
may_sleep = false;
}
/*process them if there are any*/ /*process them if there are any*/
while(num_events) while(num_events)
@ -464,6 +471,10 @@ again:
clock1 = g_get_monotonic_time(); clock1 = g_get_monotonic_time();
} }
if (may_sleep && elapsed_time_ms + 1 < LXVST_sched_timer_interval) {
Glib::usleep(1000 * (LXVST_sched_timer_interval - elapsed_time_ms - 1));
}
} }
/*Drop out to here if we set gui_quit to 1 */ /*Drop out to here if we set gui_quit to 1 */