void
sequencer_callback (unsigned int time, fluid_event_t *event,
fluid_sequencer_t *seq, void *data)
{
schedule_timer_event ();
schedule_pattern ();
}
static int timer_add(char *id, unsigned int delay, char *cb_name,
delay_cb_t cb, char *argt, void **argv)
{
#define MAX_ARG 64
#define MAX_LENGTH 64
#define FLDLIST_DIM MAX_ARG + 10
fsif_field_t fldlist[FLDLIST_DIM];
unsigned int srcid;
int success;
char *state;
if (!id || !cb_name || !cb || !argt || strlen(argt) > MAX_ARG)
success = FALSE;
else {
srcid = schedule_timer_event(id, delay);
success = srcid;
state = srcid ? "active" : "failed";
if (!build_fldlist(fldlist,id,state,delay,srcid,cb_name,cb,argt,argv)||
!fsif_add_factstore_entry(FACTSTORE_TIMER, fldlist) )
{
cancel_timer_event_by_srcid(srcid);
success = FALSE;
}
}
return success;
#undef FLDLIST_DIM
#undef MAX_LENGTH
#undef MAX_ARG
}
int
main (int argc, char *argv[])
{
int n;
fluid_settings_t *settings;
settings = new_fluid_settings ();
if (argc < 2) {
usage (argv[0]);
} else {
/* create the synth, driver and sequencer instances */
synth = new_fluid_synth (settings);
audiodriver = new_fluid_audio_driver (settings, synth);
sequencer = new_fluid_sequencer ();
/* register the synth with the sequencer */
synth_destination = fluid_sequencer_register_fluidsynth (sequencer,
synth);
/* register the client name and callback */
client_destination = fluid_sequencer_register_client (sequencer,
"fluidsynth_metronome", sequencer_callback, NULL);
/* load a SoundFont */
n = fluid_synth_sfload (synth, argv[1], 1);
if (n != -1) {
if (argc > 2) {
n = atoi (argv[2]);
if (n > 0) pattern_size = n;
}
if (argc > 3) {
n = atoi (argv[3]);
if (n > 0) note_duration = 60000 / n;
}
/* get the current time in ticks */
time_marker = fluid_sequencer_get_tick (sequencer);
/* schedule patterns */
schedule_pattern ();
schedule_timer_event ();
schedule_pattern ();
/* wait for user input */
printf ("press <Enter> to stop\n");
n = getchar ();
}
/* clean and exit */
delete_fluid_sequencer (sequencer);
delete_fluid_audio_driver (audiodriver);
delete_fluid_synth (synth);
}
delete_fluid_settings (settings);
return 0;
}