/*
* event input callback - just redirect events to subscribers
*/
static int _alsa_input(struct snd_seq_event *ev, int direct, void *private_data,
int atomic, int hop)
{
struct privateData *data = (struct privateData *)private_data;
pr_debug("callback from alsa received of type %d\n", ev->type);
spin_lock(&(data->drv->lock));
if (ev->type == SND_SEQ_EVENT_NOTEON) {
data->msg.data.bytes[0] = 0x90;
} else if (ev->type == SND_SEQ_EVENT_NOTEOFF) {
data->msg.data.bytes[0] = 0x80;
} else {
return 1;
}
//might be changed to ev->data.raw?? for event independant passing
data->msg.data.bytes[0] |= ev->data.note.channel & 0xf;
data->msg.data.bytes[1] = ev->data.note.note;
data->msg.data.bytes[2] = ev->data.note.velocity;
data->msg.data.bytes[3] = 0;
data->msg.data.size = 3;
data->msg.data.data = NULL;
data->msg.format = MIDIMessageFormatDetect(&(data->msg.data.bytes[0]));
pr_debug("found format\n");
data->msg.timestamp = 0;
RTPMIDISessionSend(data->drv->rtpmidi_session, &(data->list));
spin_unlock(&(data->drv->lock));
return 0;
}
static int _applemidi_send_rtpmidi( struct MIDIDriverAppleMIDI * driver ) {
struct MIDIMessageList messages[APPLEMIDI_MAX_MESSAGES_PER_PACKET];
int i, result;
size_t length;
MIDIMessageQueueGetLength( driver->out_queue, &length );
if( length > 0 ) {
for( i=0; i<length && i<APPLEMIDI_MAX_MESSAGES_PER_PACKET; i++ ) {
MIDIMessageQueuePop( driver->out_queue, &(messages[i].message) );
messages[i].next = &(messages[i+1]);
}
messages[i-1].next = NULL;
result = RTPMIDISessionSend( driver->rtpmidi_session, &(messages[0]) );
for( i=0; i<length && i<APPLEMIDI_MAX_MESSAGES_PER_PACKET; i++ ) {
if( messages[i].message != NULL ) MIDIMessageRelease( messages[i].message );
}
return result;
} else {
return 0;
}
}
