, _run (false)
, _active (false)
, _freewheeling (false)
+ , _measure_latency (false)
, _audio_device("")
- , _midi_device("")
+ , _midi_driver_option("")
, _device_reservation(0)
, _samplerate (48000)
, _samples_per_period (1024)
, _periods_per_cycle (2)
- , _dsp_load (0)
, _n_inputs (0)
, _n_outputs (0)
, _systemic_audio_input_latency (0)
, _systemic_audio_output_latency (0)
- , _systemic_midi_input_latency (0)
- , _systemic_midi_output_latency (0)
+ , _dsp_load (0)
, _processed_samples (0)
, _port_change_flag (false)
{
AlsaAudioBackend::set_systemic_input_latency (uint32_t sl)
{
_systemic_audio_input_latency = sl;
- _systemic_midi_input_latency = sl;
return 0;
}
AlsaAudioBackend::set_systemic_output_latency (uint32_t sl)
{
_systemic_audio_output_latency = sl;
- _systemic_midi_output_latency = sl;
+ return 0;
+}
+
+int
+AlsaAudioBackend::set_systemic_midi_input_latency (std::string const device, uint32_t sl)
+{
+ struct AlsaMidiDeviceInfo * nfo = midi_device_info(device);
+ if (!nfo) return -1;
+ nfo->systemic_input_latency = sl;
+ return 0;
+}
+
+int
+AlsaAudioBackend::set_systemic_midi_output_latency (std::string const device, uint32_t sl)
+{
+ struct AlsaMidiDeviceInfo * nfo = midi_device_info(device);
+ if (!nfo) return -1;
+ nfo->systemic_output_latency = sl;
return 0;
}
return _systemic_audio_output_latency;
}
+uint32_t
+AlsaAudioBackend::systemic_midi_input_latency (std::string const device) const
+{
+ struct AlsaMidiDeviceInfo * nfo = midi_device_info(device);
+ if (!nfo) return 0;
+ return nfo->systemic_input_latency;
+}
+
+uint32_t
+AlsaAudioBackend::systemic_midi_output_latency (std::string const device) const
+{
+ struct AlsaMidiDeviceInfo * nfo = midi_device_info(device);
+ if (!nfo) return 0;
+ return nfo->systemic_output_latency;
+}
+
/* MIDI */
+struct AlsaAudioBackend::AlsaMidiDeviceInfo *
+AlsaAudioBackend::midi_device_info(std::string const name) const {
+ for (std::map<std::string, struct AlsaMidiDeviceInfo*>::const_iterator i = _midi_devices.begin (); i != _midi_devices.end(); ++i) {
+ if (i->first == name) {
+ return (i->second);
+ }
+ }
+
+ std::map<std::string, std::string> devices;
+ get_alsa_rawmidi_device_names(devices);
+ for (std::map<std::string, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
+ if (i->first == name) {
+ _midi_devices[name] = new AlsaMidiDeviceInfo();
+ return _midi_devices[name];
+ }
+ }
+ return 0;
+}
+
std::vector<std::string>
AlsaAudioBackend::enumerate_midi_options () const
{
std::vector<std::string> m;
+#if 1 // OLD GUI
m.push_back (_("-None-"));
std::map<std::string, std::string> devices;
get_alsa_rawmidi_device_names(devices);
if (m.size() > 2) {
m.push_back (_("-All-"));
}
+#else
+ m.push_back (_("None"));
+ m.push_back (_("ALSA raw devices"));
+#endif
return m;
}
+std::vector<AudioBackend::DeviceStatus>
+AlsaAudioBackend::enumerate_midi_devices () const
+{
+ std::vector<AudioBackend::DeviceStatus> s;
+
+ std::map<std::string, std::string> devices;
+ get_alsa_rawmidi_device_names(devices);
+
+ for (std::map<std::string, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
+ s.push_back (DeviceStatus (i->first, true));
+ }
+ return s;
+}
+
int
AlsaAudioBackend::set_midi_option (const std::string& opt)
{
- _midi_device = opt;
+ _midi_driver_option = opt;
return 0;
}
std::string
AlsaAudioBackend::midi_option () const
{
- return _midi_device;
+ return _midi_driver_option;
+}
+
+int
+AlsaAudioBackend::set_midi_device_enabled (std::string const device, bool enable)
+{
+ struct AlsaMidiDeviceInfo * nfo = midi_device_info(device);
+ if (!nfo) return -1;
+ nfo->enabled = enable;
+ return 0;
+}
+
+bool
+AlsaAudioBackend::midi_device_enabled (std::string const device) const
+{
+ struct AlsaMidiDeviceInfo * nfo = midi_device_info(device);
+ if (!nfo) return false;
+ return nfo->enabled;
}
/* State Control */
int
AlsaAudioBackend::_start (bool for_latency_measurement)
{
+ if (!_active && _run) {
+ // recover from 'halted', reap threads
+ stop();
+ }
+
if (_active || _run) {
PBD::error << _("AlsaAudioBackend: already active.") << endmsg;
return -1;
PBD::warning << _("AlsaAudioBackend: sample rate does not match.") << endmsg;
}
- if (for_latency_measurement) {
- _systemic_audio_input_latency = 0;
- _systemic_audio_output_latency = 0;
- }
+ _measure_latency = for_latency_measurement;
register_system_midi_ports();
AlsaAudioBackend::stop ()
{
void *status;
- if (!_active) {
+ if (!_run) {
return 0;
}
void
AlsaAudioBackend::update_latencies ()
{
+ // trigger latency callback in RT thread (locked graph)
+ port_connect_add_remove_callback();
}
/* PORTENGINE API */
const int a_out = _n_outputs > 0 ? _n_outputs : 2;
/* audio ports */
- lr.min = lr.max = _samples_per_period + _systemic_audio_input_latency;
+ lr.min = lr.max = _samples_per_period + _measure_latency ? 0 : _systemic_audio_input_latency;
for (int i = 1; i <= a_ins; ++i) {
char tmp[64];
snprintf(tmp, sizeof(tmp), "system:capture_%d", i);
_system_inputs.push_back(static_cast<AlsaPort*>(p));
}
- lr.min = lr.max = _samples_per_period + _systemic_audio_output_latency;
+ lr.min = lr.max = _samples_per_period + _measure_latency ? 0 : _systemic_audio_output_latency;
for (int i = 1; i <= a_out; ++i) {
char tmp[64];
snprintf(tmp, sizeof(tmp), "system:playback_%d", i);
LatencyRange lr;
std::vector<std::string> devices;
- if (_midi_device == _("-None-")) {
+ // TODO new API use midi_device_info();
+ if (_midi_driver_option == _("-None-")) {
return 0;
}
- else if (_midi_device == _("-All-")) {
+ else if (_midi_driver_option == _("-All-")) {
std::map<std::string, std::string> devmap;
get_alsa_rawmidi_device_names(devmap);
for (std::map<std::string, std::string>::const_iterator i = devmap.begin (); i != devmap.end(); ++i) {
std::map<std::string, std::string> devmap;
get_alsa_rawmidi_device_names(devmap);
for (std::map<std::string, std::string>::const_iterator i = devmap.begin (); i != devmap.end(); ++i) {
- if (i->first == _midi_device) {
+ if (i->first == _midi_driver_option) {
devices.push_back (i->second);
break;
}
const int m_ins = _rmidi_in.size();
const int m_out = _rmidi_out.size();
- lr.min = lr.max = _samples_per_period + _systemic_midi_input_latency;
+ lr.min = lr.max = _samples_per_period; // + _systemic_midi_input_latency;
for (int i = 1; i <= m_ins; ++i) {
char tmp[64];
snprintf(tmp, sizeof(tmp), "system:midi_capture_%d", i);
_system_midi_in.push_back(static_cast<AlsaPort*>(p));
}
- lr.min = lr.max = _samples_per_period + _systemic_midi_output_latency;
+ lr.min = lr.max = _samples_per_period; // + _systemic_midi_output_latency;
for (int i = 1; i <= m_out; ++i) {
char tmp[64];
snprintf(tmp, sizeof(tmp), "system:midi_playback_%d", i);
clock1 = g_get_monotonic_time();
_pcmi->pcm_start ();
int no_proc_errors = 0;
+ const int bailout = 2 * _samplerate / _samples_per_period;
+ const int64_t nomial_time = 1e6 * _samples_per_period / _samplerate;
manager.registration_callback();
manager.graph_order_callback();
++no_proc_errors;
xrun = true;
}
- if (_pcmi->state () < 0 || no_proc_errors > 50) {
+ if (_pcmi->state () < 0 || no_proc_errors > bailout) {
PBD::error << _("AlsaAudioBackend: I/O error. Audio Process Terminated.") << endmsg;
break;
}
return 0;
}
+ i = 0;
+ for (std::vector<AlsaPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
+ static_cast<AlsaMidiPort*>(*it)->next_period();
+ }
+
/* queue midi*/
i = 0;
for (std::vector<AlsaPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
assert (_rmidi_out.size() > i);
+ const AlsaMidiBuffer src = static_cast<const AlsaMidiPort*>(*it)->const_buffer();
AlsaRawMidiOut *rm = static_cast<AlsaRawMidiOut*>(_rmidi_out.at(i));
- const AlsaMidiBuffer *src = static_cast<const AlsaMidiBuffer*>((*it)->get_buffer(0));
- rm->sync_time (clock1); // ?? use clock pre DSP load?
- for (AlsaMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
+ rm->sync_time (clock1);
+ for (AlsaMidiBuffer::const_iterator mit = src.begin (); mit != src.end (); ++mit) {
rm->send_event ((*mit)->timestamp(), (*mit)->data(), (*mit)->size());
}
}
/* calculate DSP load */
clock2 = g_get_monotonic_time();
const int64_t elapsed_time = clock2 - clock1;
- const int64_t nomial_time = 1e6 * _samples_per_period / _samplerate;
_dsp_load = elapsed_time / (float) nomial_time;
}
if (connections_changed) {
manager.graph_order_callback();
}
+ if (connections_changed || ports_changed) {
+ engine.latency_callback(false);
+ engine.latency_callback(true);
+ }
}
_pcmi->pcm_stop ();
AlsaMidiPort::AlsaMidiPort (AlsaAudioBackend &b, const std::string& name, PortFlags flags)
: AlsaPort (b, name, flags)
+ , _bufperiod (0)
{
- _buffer.clear ();
+ _buffer[0].clear ();
+ _buffer[1].clear ();
}
AlsaMidiPort::~AlsaMidiPort () { }
void* AlsaMidiPort::get_buffer (pframes_t /* nframes */)
{
if (is_input ()) {
- _buffer.clear ();
+ (_buffer[_bufperiod]).clear ();
for (std::vector<AlsaPort*>::const_iterator i = get_connections ().begin ();
i != get_connections ().end ();
++i) {
const AlsaMidiBuffer src = static_cast<const AlsaMidiPort*>(*i)->const_buffer ();
for (AlsaMidiBuffer::const_iterator it = src.begin (); it != src.end (); ++it) {
- _buffer.push_back (boost::shared_ptr<AlsaMidiEvent>(new AlsaMidiEvent (**it)));
+ (_buffer[_bufperiod]).push_back (boost::shared_ptr<AlsaMidiEvent>(new AlsaMidiEvent (**it)));
}
}
- std::sort (_buffer.begin (), _buffer.end (), MidiEventSorter());
+ std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
}
- return &_buffer;
+ return &(_buffer[_bufperiod]);
}
AlsaMidiEvent::AlsaMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)