int JackAlsaDriver::SetBufferSize(jack_nframes_t buffer_size)
{
jack_log("JackAlsaDriver::SetBufferSize %ld", buffer_size);
int res = alsa_driver_reset_parameters((alsa_driver_t *)fDriver, buffer_size,
((alsa_driver_t *)fDriver)->user_nperiods,
((alsa_driver_t *)fDriver)->frame_rate);
if (res == 0) { // update fEngineControl and fGraphManager
JackAudioDriver::SetBufferSize(buffer_size); // Generic change, never fails
// ALSA specific
UpdateLatencies();
} else {
// Restore old values
alsa_driver_reset_parameters((alsa_driver_t *)fDriver, fEngineControl->fBufferSize,
((alsa_driver_t *)fDriver)->user_nperiods,
((alsa_driver_t *)fDriver)->frame_rate);
}
return res;
}
int JackMidiDriver::Attach()
{
JackPort* port;
jack_port_id_t port_index;
char name[REAL_JACK_PORT_NAME_SIZE];
char alias[REAL_JACK_PORT_NAME_SIZE];
int i;
jack_log("JackMidiDriver::Attach fBufferSize = %ld fSampleRate = %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);
for (i = 0; i < fCaptureChannels; i++) {
snprintf(alias, sizeof(alias), "%s:%s:out%d", fAliasName, fCaptureDriverName, i + 1);
snprintf(name, sizeof(name), "%s:capture_%d", fClientControl.fName, i + 1);
if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_MIDI_TYPE, CaptureDriverFlags, fEngineControl->fBufferSize, &port_index) < 0) {
jack_error("driver: cannot register port for %s", name);
return -1;
}
port = fGraphManager->GetPort(port_index);
port->SetAlias(alias);
fCapturePortList[i] = port_index;
jack_log("JackMidiDriver::Attach fCapturePortList[i] port_index = %ld", port_index);
}
for (i = 0; i < fPlaybackChannels; i++) {
snprintf(alias, sizeof(alias), "%s:%s:in%d", fAliasName, fPlaybackDriverName, i + 1);
snprintf(name, sizeof(name), "%s:playback_%d", fClientControl.fName, i + 1);
if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_MIDI_TYPE, PlaybackDriverFlags, fEngineControl->fBufferSize, &port_index) < 0) {
jack_error("driver: cannot register port for %s", name);
return -1;
}
port = fGraphManager->GetPort(port_index);
port->SetAlias(alias);
fPlaybackPortList[i] = port_index;
jack_log("JackMidiDriver::Attach fPlaybackPortList[i] port_index = %ld", port_index);
}
UpdateLatencies();
return 0;
}
int JackAlsaDriver::Attach()
{
JackPort* port;
jack_port_id_t port_index;
unsigned long port_flags = (unsigned long)CaptureDriverFlags;
char name[REAL_JACK_PORT_NAME_SIZE];
char alias[REAL_JACK_PORT_NAME_SIZE];
assert(fCaptureChannels < DRIVER_PORT_NUM);
assert(fPlaybackChannels < DRIVER_PORT_NUM);
alsa_driver_t* alsa_driver = (alsa_driver_t*)fDriver;
if (alsa_driver->has_hw_monitoring)
port_flags |= JackPortCanMonitor;
// ALSA driver may have changed the values
JackAudioDriver::SetBufferSize(alsa_driver->frames_per_cycle);
JackAudioDriver::SetSampleRate(alsa_driver->frame_rate);
jack_log("JackAlsaDriver::Attach fBufferSize %ld fSampleRate %ld", fEngineControl->fBufferSize, fEngineControl->fSampleRate);
for (int i = 0; i < fCaptureChannels; i++) {
snprintf(alias, sizeof(alias), "%s:%s:out%d", fAliasName, fCaptureDriverName, i + 1);
snprintf(name, sizeof(name), "%s:capture_%d", fClientControl.fName, i + 1);
if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize, &port_index) < 0) {
jack_error("driver: cannot register port for %s", name);
return -1;
}
port = fGraphManager->GetPort(port_index);
port->SetAlias(alias);
fCapturePortList[i] = port_index;
jack_log("JackAlsaDriver::Attach fCapturePortList[i] %ld ", port_index);
}
port_flags = (unsigned long)PlaybackDriverFlags;
for (int i = 0; i < fPlaybackChannels; i++) {
snprintf(alias, sizeof(alias), "%s:%s:in%d", fAliasName, fPlaybackDriverName, i + 1);
snprintf(name, sizeof(name), "%s:playback_%d", fClientControl.fName, i + 1);
if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize, &port_index) < 0) {
jack_error("driver: cannot register port for %s", name);
return -1;
}
port = fGraphManager->GetPort(port_index);
port->SetAlias(alias);
fPlaybackPortList[i] = port_index;
jack_log("JackAlsaDriver::Attach fPlaybackPortList[i] %ld ", port_index);
// Monitor ports
if (fWithMonitorPorts) {
jack_log("Create monitor port");
snprintf(name, sizeof(name), "%s:monitor_%d", fClientControl.fName, i + 1);
if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, MonitorDriverFlags, fEngineControl->fBufferSize, &port_index) < 0) {
jack_error("ALSA: cannot register monitor port for %s", name);
} else {
fMonitorPortList[i] = port_index;
}
}
}
UpdateLatencies();
if (alsa_driver->midi) {
int err = (alsa_driver->midi->attach)(alsa_driver->midi);
if (err)
jack_error ("ALSA: cannot attach MIDI: %d", err);
}
return 0;
}
int JackMidiDriver::SetBufferSize(jack_nframes_t buffer_size)
{
UpdateLatencies();
return 0;
}