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Takashi Iwai <iwai@ww.uni-erlangen.de>

Browse source 
Frank van de Pol <frank@vande-pol.demon.nl>
Major sequencer changes and cleanups for 1.0.0.
This commit is contained in:
Jaroslav Kysela 1999-12-15 18:34:12 +00:00
parent 7b0898c17d
commit a3aaf0582a
8 changed files with 176 additions and 121 deletions
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31
test/seq-sender.c
View file

@ -1,3 +1,5 @@
#ifdef USE_PCM
/*
* PCM timer layer
*/
@ -50,7 +52,7 @@ void show_playback_status(snd_pcm_t *phandle)
printf(" Fragments : %i\n", pstatus.fragments);
printf(" Fragment size : %i\n", pstatus.fragment_size);
}
#endif
/*
* Simple event sender
*/
@ -58,8 +60,8 @@ void show_playback_status(snd_pcm_t *phandle)
void event_sender_start_timer(snd_seq_t *handle, int client, int queue, snd_pcm_t *phandle)
{
int err;
snd_seq_event_t ev;
#ifdef USE_PCM
if (phandle) {
snd_pcm_playback_info_t pinfo;
snd_seq_queue_timer_t qtimer;
@ -78,16 +80,8 @@ void event_sender_start_timer(snd_seq_t *handle, int client, int queue, snd_pcm_
exit(0);
}
}
bzero(&ev, sizeof(ev));
ev.source.queue = queue;
ev.source.client = client;
ev.source.port = 0;
ev.dest.queue = queue;
ev.dest.client = SND_SEQ_CLIENT_SYSTEM;
ev.dest.port = SND_SEQ_PORT_SYSTEM_TIMER;
ev.flags = SND_SEQ_TIME_STAMP_REAL | SND_SEQ_TIME_MODE_REL;
ev.type = SND_SEQ_EVENT_START;
if ((err = snd_seq_event_output(handle, &ev))<0)
#endif
if ((err = snd_seq_start_queue(handle, queue, NULL))<0)
fprintf(stderr, "Timer event output error: %s\n", snd_strerror(err));
/* ugly, but working */
while (snd_seq_flush_output(handle)>0)
@ -119,7 +113,7 @@ void send_event(snd_seq_t *handle, int queue, int client, int port,
snd_seq_event_t ev;
bzero(&ev, sizeof(ev));
ev.source.queue = ev.dest.queue = queue;
ev.queue = queue;
ev.source.client = ev.dest.client = client;
ev.source.port = ev.dest.port = port;
ev.flags = SND_SEQ_TIME_STAMP_REAL | SND_SEQ_TIME_MODE_ABS;
@ -129,10 +123,11 @@ void send_event(snd_seq_t *handle, int queue, int client, int port,
fprintf(stderr, "Event output error: %s\n", snd_strerror(err));
ev.dest.client = sub->dest.client;
ev.dest.port = sub->dest.port;
ev.dest.channel = 0;
ev.type = SND_SEQ_EVENT_NOTE;
ev.data.note.channel = 0;
ev.data.note.note = 64 + (queue*2);
ev.data.note.velocity = 127;
ev.data.note.off_velocity = 127;
ev.data.note.duration = 500; /* 0.5sec */
if ((err = snd_seq_event_output(handle, &ev))<0)
fprintf(stderr, "Event output error: %s\n", snd_strerror(err));
@ -178,10 +173,8 @@ void event_sender(snd_seq_t *handle, int argc, char *argv[])
}
bzero(&sub, sizeof(sub));
sub.sender.queue = queue;
sub.sender.client = client;
sub.sender.port = port.port;
sub.dest.queue = queue;
sub.exclusive = 0;
for (max = 0; max < argc; max++) {
@ -206,6 +199,7 @@ void event_sender(snd_seq_t *handle, int argc, char *argv[])
printf("Destonation client = %i, port = %i\n", sub.dest.client, sub.dest.port);
#ifdef USE_PCM
if (pcm_flag) {
if ((err = snd_pcm_open(&phandle, pcard, pdevice, SND_PCM_OPEN_PLAYBACK)) < 0) {
fprintf(stderr, "Playback open error: %s\n", snd_strerror(err));
@ -220,6 +214,7 @@ void event_sender(snd_seq_t *handle, int argc, char *argv[])
exit(0);
}
}
#endif
event_sender_start_timer(handle, client, queue, phandle);
first = 1;
@ -229,19 +224,23 @@ void event_sender(snd_seq_t *handle, int argc, char *argv[])
max = snd_seq_file_descriptor(handle);
FD_SET(snd_seq_file_descriptor(handle), &out);
FD_SET(snd_seq_file_descriptor(handle), &in);
#ifdef USE_PCM
if (phandle) {
if (snd_pcm_file_descriptor(phandle) > max)
max = snd_pcm_file_descriptor(phandle);
FD_SET(snd_pcm_file_descriptor(phandle), &out);
}
#endif
if (select(max + 1, &in, &out, NULL, NULL) < 0)
break;
#ifdef USE_PCM
if (phandle && FD_ISSET(snd_pcm_file_descriptor(phandle), &out)) {
if (snd_pcm_write(phandle, pbuf, pfragment_size) != pfragment_size) {
fprintf(stderr, "Playback write error!!\n");
exit(0);
}
}
#endif
if (FD_ISSET(snd_seq_file_descriptor(handle), &out)) {
if (first) {
send_event(handle, queue, client, port.port, &sub, &time);