static std::string s_instance_name;
size_t AlsaAudioBackend::_max_buffer_size = 8192;
+std::vector<std::string> AlsaAudioBackend::_midi_options;
+std::vector<AudioBackend::DeviceStatus> AlsaAudioBackend::_audio_device_status;
+std::vector<AudioBackend::DeviceStatus> AlsaAudioBackend::_midi_device_status;
AlsaAudioBackend::AlsaAudioBackend (AudioEngine& e, AudioBackendInfo& info)
: AudioBackend (e, info)
std::vector<AudioBackend::DeviceStatus>
AlsaAudioBackend::enumerate_devices () const
{
- std::vector<AudioBackend::DeviceStatus> s;
+ _audio_device_status.clear();
std::map<std::string, std::string> devices;
get_alsa_audio_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));
+ if (_audio_device == "") _audio_device = i->first;
+ _audio_device_status.push_back (DeviceStatus (i->first, true));
}
- return s;
+ return _audio_device_status;
}
void
_reservation_succeeded = false;
std::string request_device_exe;
- if (!PBD::find_file_in_search_path (
+ if (!PBD::find_file (
PBD::Searchpath(Glib::build_filename(ARDOUR::ardour_dll_directory(), "ardouralsautil")
+ G_SEARCHPATH_SEPARATOR_S + ARDOUR::ardour_dll_directory()),
"ardour-request-device", request_device_exe))
}
}
+ assert(_midi_driver_option != _("None"));
+
std::map<std::string, std::string> devices;
- get_alsa_rawmidi_device_names(devices);
+ if (_midi_driver_option == _("ALSA raw devices")) {
+ get_alsa_rawmidi_device_names(devices);
+ } else {
+ get_alsa_sequencer_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();
std::vector<std::string>
AlsaAudioBackend::enumerate_midi_options () const
{
- std::vector<std::string> m;
- m.push_back (_("None"));
- m.push_back (_("ALSA raw devices"));
- return m;
+ if (_midi_options.empty()) {
+ _midi_options.push_back (_("None"));
+ _midi_options.push_back (_("ALSA raw devices"));
+ _midi_options.push_back (_("ALSA sequencer"));
+ }
+ return _midi_options;
}
std::vector<AudioBackend::DeviceStatus>
AlsaAudioBackend::enumerate_midi_devices () const
{
- std::vector<AudioBackend::DeviceStatus> s;
- if (_midi_driver_option == _("None")) {
- return s;
- }
-
+ _midi_device_status.clear();
std::map<std::string, std::string> devices;
- get_alsa_rawmidi_device_names(devices);
+
+ if (_midi_driver_option == _("ALSA raw devices")) {
+ get_alsa_rawmidi_device_names (devices);
+ }
+ else if (_midi_driver_option == _("ALSA sequencer")) {
+ get_alsa_sequencer_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));
+ _midi_device_status.push_back (DeviceStatus (i->first, true));
}
- return s;
+ return _midi_device_status;
}
int
AlsaAudioBackend::set_midi_option (const std::string& opt)
{
- if (opt != _("None") && opt != _("ALSA raw devices")) {
+ if (opt != _("None") && opt != _("ALSA raw devices") && opt != _("ALSA sequencer")) {
return -1;
}
_midi_driver_option = opt;
}
while (!_rmidi_out.empty ()) {
- AlsaRawMidiIO *m = _rmidi_out.back ();
+ AlsaMidiIO *m = _rmidi_out.back ();
m->stop();
_rmidi_out.pop_back ();
delete m;
}
while (!_rmidi_in.empty ()) {
- AlsaRawMidiIO *m = _rmidi_in.back ();
+ AlsaMidiIO *m = _rmidi_in.back ();
m->stop();
_rmidi_in.pop_back ();
delete m;
}
- unregister_system_ports();
+ unregister_ports();
delete _pcmi; _pcmi = 0;
release_device();
bool
AlsaAudioBackend::in_process_thread ()
{
+ if (pthread_equal (_main_thread, pthread_self()) != 0) {
+ return true;
+ }
+
for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
{
if (pthread_equal (*i, pthread_self ()) != 0) {
void
AlsaAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
{
- if (!valid_port (port_handle)) {
- PBD::error << _("AlsaBackend::unregister_port: Invalid Port.") << endmsg;
+ if (!_run) {
+ return;
}
AlsaPort* port = static_cast<AlsaPort*>(port_handle);
std::vector<AlsaPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<AlsaPort*>(port_handle));
if (_midi_driver_option == _("None")) {
return 0;
+ } else if (_midi_driver_option == _("ALSA raw devices")) {
+ get_alsa_rawmidi_device_names(devices);
+ } else {
+ get_alsa_sequencer_names (devices);
}
- get_alsa_rawmidi_device_names(devices);
for (std::map<std::string, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
struct AlsaMidiDeviceInfo * nfo = midi_device_info(i->first);
if (!nfo) continue;
if (!nfo->enabled) continue;
- AlsaRawMidiOut *mout = new AlsaRawMidiOut (i->second.c_str());
+ AlsaMidiOut *mout;
+ if (_midi_driver_option == _("ALSA raw devices")) {
+ mout = new AlsaRawMidiOut (i->second.c_str());
+ } else {
+ mout = new AlsaSeqMidiOut (i->second.c_str());
+ }
+
if (mout->state ()) {
PBD::warning << string_compose (
- _("AlsaRawMidiOut: failed to open midi device '%1'."), i->second)
+ _("AlsaMidiOut: failed to open midi device '%1'."), i->second)
<< endmsg;
delete mout;
} else {
mout->sync_time (g_get_monotonic_time());
if (mout->start ()) {
PBD::warning << string_compose (
- _("AlsaRawMidiOut: failed to start midi device '%1'."), i->second)
+ _("AlsaMidiOut: failed to start midi device '%1'."), i->second)
<< endmsg;
delete mout;
} else {
LatencyRange lr;
lr.min = lr.max = _samples_per_period + (_measure_latency ? 0 : nfo->systemic_output_latency);
set_latency_range (p, false, lr);
+ static_cast<AlsaMidiPort*>(p)->set_n_periods(2);
_system_midi_out.push_back(static_cast<AlsaPort*>(p));
_rmidi_out.push_back (mout);
}
}
- AlsaRawMidiIn *midin = new AlsaRawMidiIn (i->second.c_str());
+ AlsaMidiIn *midin;
+ if (_midi_driver_option == _("ALSA raw devices")) {
+ midin = new AlsaRawMidiIn (i->second.c_str());
+ } else {
+ midin = new AlsaSeqMidiIn (i->second.c_str());
+ }
+
if (midin->state ()) {
PBD::warning << string_compose (
- _("AlsaRawMidiIn: failed to open midi device '%1'."), i->second)
+ _("AlsaMidiIn: failed to open midi device '%1'."), i->second)
<< endmsg;
delete midin;
} else {
midin->sync_time (g_get_monotonic_time());
if (midin->start ()) {
PBD::warning << string_compose (
- _("AlsaRawMidiIn: failed to start midi device '%1'."), i->second)
+ _("AlsaMidiIn: failed to start midi device '%1'."), i->second)
<< endmsg;
delete midin;
} else {
}
void
-AlsaAudioBackend::unregister_system_ports()
+AlsaAudioBackend::unregister_ports (bool system_only)
{
size_t i = 0;
_system_inputs.clear();
_system_midi_out.clear();
while (i < _ports.size ()) {
AlsaPort* port = _ports[i];
- if (port->is_physical () && port->is_terminal ()) {
+ if (! system_only || (port->is_physical () && port->is_terminal ())) {
port->disconnect_all ();
+ delete port;
_ports.erase (_ports.begin() + i);
} else {
++i;
_processed_samples = 0;
uint64_t clock1, clock2;
- clock1 = g_get_monotonic_time();
_pcmi->pcm_start ();
int no_proc_errors = 0;
const int bailout = 2 * _samplerate / _samples_per_period;
}
_pcmi->capt_done (_samples_per_period);
- /* de-queue midi*/
+ /* de-queue incoming midi*/
i = 0;
for (std::vector<AlsaPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
assert (_rmidi_in.size() > i);
- AlsaRawMidiIn *rm = static_cast<AlsaRawMidiIn*>(_rmidi_in.at(i));
+ AlsaMidiIn *rm = _rmidi_in.at(i);
void *bptr = (*it)->get_buffer(0);
pframes_t time;
- uint8_t data[64]; // match MaxAlsaRawEventSize in alsa_rawmidi.cc
+ uint8_t data[64]; // match MaxAlsaEventSize in alsa_rawmidi.cc
size_t size = sizeof(data);
midi_clear(bptr);
while (rm->recv_event (time, data, size)) {
return 0;
}
- i = 0;
- for (std::vector<AlsaPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
+ for (std::vector<AlsaPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
static_cast<AlsaMidiPort*>(*it)->next_period();
}
- /* queue midi */
+ /* queue outgoing 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));
+ AlsaMidiOut *rm = _rmidi_out.at(i);
rm->sync_time (clock1);
for (AlsaMidiBuffer::const_iterator mit = src.begin (); mit != src.end (); ++mit) {
rm->send_event ((*mit)->timestamp(), (*mit)->data(), (*mit)->size());
}
} else {
// Freewheelin'
+
+ // zero audio input buffers
for (std::vector<AlsaPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
}
- for (std::vector<AlsaPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
+
+ clock1 = g_get_monotonic_time();
+ uint32_t i = 0;
+ for (std::vector<AlsaPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
static_cast<AlsaMidiBuffer*>((*it)->get_buffer(0))->clear ();
+ AlsaMidiIn *rm = _rmidi_in.at(i);
+ void *bptr = (*it)->get_buffer(0);
+ midi_clear(bptr); // zero midi buffer
+
+ // TODO add an API call for this.
+ pframes_t time;
+ uint8_t data[64]; // match MaxAlsaEventSize in alsa_rawmidi.cc
+ size_t size = sizeof(data);
+ while (rm->recv_event (time, data, size)) {
+ ; // discard midi-data from HW.
+ }
+ rm->sync_time (clock1);
}
if (engine.process_callback (_samples_per_period)) {
_pcmi->pcm_stop ();
+ _active = false;
return 0;
}
+
+ // drop all outgoing MIDI messages
+ for (std::vector<AlsaPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
+ void *bptr = (*it)->get_buffer(0);
+ midi_clear(bptr);
+ }
+
_dsp_load = 1.0;
Glib::usleep (100); // don't hog cpu
}
static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
static int deinstantiate ();
static bool already_configured ();
+static bool available ();
static ARDOUR::AudioBackendInfo _descriptor = {
"ALSA",
deinstantiate,
backend_factory,
already_configured,
+ available
};
static boost::shared_ptr<AudioBackend>
return false;
}
+static bool
+available ()
+{
+ return true;
+}
+
extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
{
return &_descriptor;
AlsaMidiPort::AlsaMidiPort (AlsaAudioBackend &b, const std::string& name, PortFlags flags)
: AlsaPort (b, name, flags)
+ , _n_periods (1)
, _bufperiod (0)
{
_buffer[0].clear ();
projects / ardour.git / blobdiff