static
inline int midi_port_open_jack(alsa_rawmidi_t *midi, midi_port_t *port, int type, const char *alias)
{
char name[128];
if (type & JackPortIsOutput)
snprintf(name, sizeof(name), "system:midi_capture_%d", ++midi->midi_in_cnt);
else
snprintf(name, sizeof(name), "system:midi_playback_%d", ++midi->midi_out_cnt);
port->jack = jack_port_register(midi->client, name, JACK_DEFAULT_MIDI_TYPE,
type | JackPortIsPhysical | JackPortIsTerminal, 0);
if (port->jack)
jack_port_set_alias(port->jack, alias);
return port->jack == NULL;
}
static
port_t* port_create(alsa_seqmidi_t *self, int type, snd_seq_addr_t addr, const snd_seq_port_info_t *info)
{
snd_seq_client_info_t* client_info;
port_t *port;
char *c;
int err;
int jack_caps;
char name[128];
port = calloc(1, sizeof(port_t));
if (!port)
return NULL;
port->remote = addr;
snd_seq_client_info_alloca (&client_info);
snd_seq_get_any_client_info (self->seq, addr.client, client_info);
snprintf(port->name, sizeof(port->name), "alsa_pcm:%s/midi_%s_%d",
snd_seq_client_info_get_name(client_info), port_type[type].name, addr.port+1);
// replace all offending characters by -
for (c = port->name; *c; ++c)
if (!isalnum(*c) && *c != '/' && *c != '_' && *c != ':' && *c != '(' && *c != ')')
*c = '-';
jack_caps = port_type[type].jack_caps;
/* mark anything that looks like a hardware port as physical&terminal */
if (snd_seq_port_info_get_type (info) & (SND_SEQ_PORT_TYPE_HARDWARE|SND_SEQ_PORT_TYPE_PORT|SND_SEQ_PORT_TYPE_SPECIFIC)) {
jack_caps |= (JackPortIsPhysical | JackPortIsTerminal);
}
if (jack_caps & JackPortIsOutput)
snprintf(name, sizeof(name), "system:midi_capture_%d", ++self->midi_in_cnt);
else
snprintf(name, sizeof(name), "system:midi_playback_%d", ++self->midi_out_cnt);
port->jack_port = jack_port_register(self->jack,
name, JACK_DEFAULT_MIDI_TYPE, jack_caps, 0);
if (!port->jack_port)
goto failed;
jack_port_set_alias (port->jack_port, port->name);
/* generate an alias */
snprintf(port->name, sizeof(port->name), "%s:midi/%s_%d",
snd_seq_client_info_get_name (client_info), port_type[type].name, addr.port+1);
// replace all offending characters by -
for (c = port->name; *c; ++c)
if (!isalnum(*c) && *c != '/' && *c != '_' && *c != ':' && *c != '(' && *c != ')')
*c = '-';
jack_port_set_alias (port->jack_port, port->name);
if (type == PORT_INPUT)
err = alsa_connect_from(self, port->remote.client, port->remote.port);
else
err = snd_seq_connect_to(self->seq, self->port_id, port->remote.client, port->remote.port);
if (err)
goto failed;
port->early_events = jack_ringbuffer_create(MAX_EVENT_SIZE*16);
info_log("port created: %s", port->name);
return port;
failed:
port_free(self, port);
return NULL;
}