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increase LXVST GUI idle call regularity, aim for 25Hz

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Robin Gareus 2014-04-21 14:44:36 +02:00 • committed by Paul Davis
parent 1660ac7f54
commit 33029e6433
1 changed files with 11 additions and 7 deletions
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18
gtk2_ardour/linux_vst_gui_support.cc
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@ -42,6 +42,7 @@
#include <time.h> #include <time.h>
#include <unistd.h> #include <unistd.h>
#include <pthread.h> #include <pthread.h>
#include <sys/time.h>
struct ERect{ struct ERect{
short top; short top;
@ -333,10 +334,11 @@ windows, that is if they don't manage their own UIs **/
void* gui_event_loop (void* ptr) void* gui_event_loop (void* ptr)
{ {
VSTState* vstfx; VSTState* vstfx;
int LXVST_sched_event_timer = 0; int LXVST_sched_timer_interval = 40; //ms, 25fps
int LXVST_sched_timer_interval = 50; //ms
XEvent event; XEvent event;
struct timeval clock1, clock2;
gettimeofday(&clock1, NULL);
/*The 'Forever' loop - runs the plugin UIs etc - based on the FST gui event loop*/ /*The 'Forever' loop - runs the plugin UIs etc - based on the FST gui event loop*/
while (!gui_quit) while (!gui_quit)
@ -378,14 +380,14 @@ void* gui_event_loop (void* ptr)
Glib::usleep(1000); Glib::usleep(1000);
LXVST_sched_event_timer++;
LXVST_sched_event_timer = LXVST_sched_event_timer & 0x00FFFFFF;
/*See if its time for us to do a scheduled event pass on all the plugins*/ /*See if its time for us to do a scheduled event pass on all the plugins*/
if((LXVST_sched_timer_interval!=0) && (!(LXVST_sched_event_timer% LXVST_sched_timer_interval))) gettimeofday(&clock2, NULL);
const int elapsed_time = (clock2.tv_sec - clock1.tv_sec) * 1000 + (clock2.tv_usec - clock1.tv_usec) / 1000;
if((LXVST_sched_timer_interval != 0) && elapsed_time >= LXVST_sched_timer_interval)
{ {
//printf("elapsed %d ms ^= %.2f Hz\n", elapsed_time, 1000.0/(double)elapsed_time); // DEBUG
pthread_mutex_lock (&plugin_mutex); pthread_mutex_lock (&plugin_mutex);
again: again:
@ -460,6 +462,8 @@ again:
pthread_mutex_unlock (&vstfx->lock); pthread_mutex_unlock (&vstfx->lock);
} }
pthread_mutex_unlock (&plugin_mutex); pthread_mutex_unlock (&plugin_mutex);
gettimeofday(&clock1, NULL);
} }
} }