2 * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
3 * Copyright (C) 2013 Paul Davis
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include "coreaudio_backend.h"
27 #include "rt_thread.h"
29 #include "pbd/compose.h"
30 #include "pbd/error.h"
31 #include "pbd/file_utils.h"
32 #include "ardour/filesystem_paths.h"
33 #include "ardour/port_manager.h"
36 using namespace ARDOUR;
38 static std::string s_instance_name;
39 size_t CoreAudioBackend::_max_buffer_size = 8192;
40 std::vector<std::string> CoreAudioBackend::_midi_options;
41 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
42 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
43 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
46 /* static class instance access */
47 static void hw_changed_callback_ptr (void *arg)
49 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
50 d->hw_changed_callback();
53 static void error_callback_ptr (void *arg)
55 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
59 static void xrun_callback_ptr (void *arg)
61 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
65 static void buffer_size_callback_ptr (void *arg)
67 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
68 d->buffer_size_callback();
71 static void sample_rate_callback_ptr (void *arg)
73 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
74 d->sample_rate_callback();
77 static void midi_port_change (void *arg)
79 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
80 d->coremidi_rediscover ();
84 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
85 : AudioBackend (e, info)
89 , _freewheeling (false)
91 , _freewheel_ack (false)
92 , _reinit_thread_callback (false)
93 , _measure_latency (false)
94 , _last_process_start (0)
95 , _input_audio_device("")
96 , _output_audio_device("")
97 , _midi_driver_option(_("None"))
99 , _samples_per_period (1024)
102 , _systemic_audio_input_latency (0)
103 , _systemic_audio_output_latency (0)
105 , _processed_samples (0)
106 , _port_change_flag (false)
107 #ifdef USE_MIDI_PARSER
110 , _unbuffered_bytes(0)
116 _instance_name = s_instance_name;
117 pthread_mutex_init (&_port_callback_mutex, 0);
118 pthread_mutex_init (&_process_callback_mutex, 0);
119 pthread_mutex_init (&_freewheel_mutex, 0);
120 pthread_cond_init (&_freewheel_signal, 0);
122 _pcmio = new CoreAudioPCM ();
123 _midiio = new CoreMidiIo ();
125 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
129 CoreAudioBackend::~CoreAudioBackend ()
131 delete _pcmio; _pcmio = 0;
132 delete _midiio; _midiio = 0;
133 pthread_mutex_destroy (&_port_callback_mutex);
134 pthread_mutex_destroy (&_process_callback_mutex);
135 pthread_mutex_destroy (&_freewheel_mutex);
136 pthread_cond_destroy (&_freewheel_signal);
139 /* AUDIOBACKEND API */
142 CoreAudioBackend::name () const
144 return X_("CoreAudio");
148 CoreAudioBackend::is_realtime () const
153 std::vector<AudioBackend::DeviceStatus>
154 CoreAudioBackend::enumerate_devices () const
156 _duplex_audio_device_status.clear();
157 std::map<size_t, std::string> devices;
158 _pcmio->duplex_device_list(devices);
160 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
161 if (_input_audio_device == "") _input_audio_device = i->second;
162 if (_output_audio_device == "") _output_audio_device = i->second;
163 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
165 return _duplex_audio_device_status;
168 std::vector<AudioBackend::DeviceStatus>
169 CoreAudioBackend::enumerate_input_devices () const
171 _input_audio_device_status.clear();
172 std::map<size_t, std::string> devices;
173 _pcmio->input_device_list(devices);
175 _input_audio_device_status.push_back (DeviceStatus (_("None"), true));
176 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
177 if (_input_audio_device == "") _input_audio_device = i->second;
178 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
180 return _input_audio_device_status;
184 std::vector<AudioBackend::DeviceStatus>
185 CoreAudioBackend::enumerate_output_devices () const
187 _output_audio_device_status.clear();
188 std::map<size_t, std::string> devices;
189 _pcmio->output_device_list(devices);
191 _output_audio_device_status.push_back (DeviceStatus (_("None"), true));
192 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
193 if (_output_audio_device == "") _output_audio_device = i->second;
194 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
196 return _output_audio_device_status;
200 CoreAudioBackend::available_sample_rates (const std::string&) const
202 std::vector<float> sr;
203 std::vector<float> sr_in;
204 std::vector<float> sr_out;
206 const uint32_t inp = name_to_id(_input_audio_device);
207 const uint32_t out = name_to_id(_output_audio_device);
208 if (inp == UINT32_MAX && out == UINT32_MAX) {
210 } else if (inp == UINT32_MAX) {
211 _pcmio->available_sample_rates(out, sr_out);
213 } else if (out == UINT32_MAX) {
214 _pcmio->available_sample_rates(inp, sr_in);
217 _pcmio->available_sample_rates(inp, sr_in);
218 _pcmio->available_sample_rates(out, sr_out);
219 // TODO allow to use different SR per device, tweak aggregate
220 std::set_intersection(sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
225 std::vector<uint32_t>
226 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
228 std::vector<uint32_t> bs;
229 _pcmio->available_buffer_sizes(name_to_id(device), bs);
234 CoreAudioBackend::available_input_channel_count (const std::string&) const
236 return 128; // TODO query current device
240 CoreAudioBackend::available_output_channel_count (const std::string&) const
242 return 128; // TODO query current device
246 CoreAudioBackend::can_change_sample_rate_when_running () const
252 CoreAudioBackend::can_change_buffer_size_when_running () const
258 CoreAudioBackend::set_device_name (const std::string& d)
261 rv |= set_input_device_name (d);
262 rv |= set_output_device_name (d);
267 CoreAudioBackend::set_input_device_name (const std::string& d)
269 _input_audio_device = d;
270 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device));
271 if (sr > 0) { set_sample_rate(sr); }
276 CoreAudioBackend::set_output_device_name (const std::string& d)
278 _output_audio_device = d;
280 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device));
281 if (sr > 0) { set_sample_rate(sr); }
286 CoreAudioBackend::set_sample_rate (float sr)
288 std::vector<float> srs = available_sample_rates (/* really ignored */_input_audio_device);
289 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
293 engine.sample_rate_change (sr);
298 CoreAudioBackend::set_buffer_size (uint32_t bs)
300 if (bs <= 0 || bs >= _max_buffer_size) {
303 _samples_per_period = bs;
304 _pcmio->set_samples_per_period(bs);
305 engine.buffer_size_change (bs);
310 CoreAudioBackend::set_interleaved (bool yn)
312 if (!yn) { return 0; }
317 CoreAudioBackend::set_input_channels (uint32_t cc)
324 CoreAudioBackend::set_output_channels (uint32_t cc)
331 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
333 _systemic_audio_input_latency = sl;
338 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
340 _systemic_audio_output_latency = sl;
344 /* Retrieving parameters */
346 CoreAudioBackend::device_name () const
352 CoreAudioBackend::input_device_name () const
354 return _input_audio_device;
358 CoreAudioBackend::output_device_name () const
360 return _output_audio_device;
364 CoreAudioBackend::sample_rate () const
370 CoreAudioBackend::buffer_size () const
372 return _samples_per_period;
376 CoreAudioBackend::interleaved () const
382 CoreAudioBackend::input_channels () const
388 CoreAudioBackend::output_channels () const
394 CoreAudioBackend::systemic_input_latency () const
396 return _systemic_audio_input_latency;
400 CoreAudioBackend::systemic_output_latency () const
402 return _systemic_audio_output_latency;
407 std::vector<std::string>
408 CoreAudioBackend::enumerate_midi_options () const
410 if (_midi_options.empty()) {
411 _midi_options.push_back (_("CoreMidi"));
412 _midi_options.push_back (_("None"));
414 return _midi_options;
418 CoreAudioBackend::set_midi_option (const std::string& opt)
420 if (opt != _("None") && opt != _("CoreMidi")) {
423 _midi_driver_option = opt;
428 CoreAudioBackend::midi_option () const
430 return _midi_driver_option;
434 CoreAudioBackend::launch_control_app ()
436 _pcmio->launch_control_app(name_to_id(_input_audio_device));
441 static void * pthread_freewheel (void *arg)
443 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
444 d->freewheel_thread ();
449 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
451 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
452 return d->process_callback(n_samples, host_time);
456 CoreAudioBackend::_start (bool for_latency_measurement)
458 if ((!_active_ca || !_active_fw) && _run) {
459 // recover from 'halted', reap threads
463 if (_active_ca || _active_fw || _run) {
464 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
469 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
470 _system_inputs.clear();
471 _system_outputs.clear();
472 _system_midi_in.clear();
473 _system_midi_out.clear();
477 uint32_t device1 = name_to_id(_input_audio_device);
478 uint32_t device2 = name_to_id(_output_audio_device);
480 assert(_active_ca == false);
481 assert(_active_fw == false);
483 _freewheel_ack = false;
484 _reinit_thread_callback = true;
485 _last_process_start = 0;
487 _pcmio->set_error_callback (error_callback_ptr, this);
488 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
489 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
491 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
492 printf("STATE: %d\n", _pcmio->state ());
494 switch (_pcmio->state ()) {
495 case 0: /* OK */ break;
496 case -1: PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg; break;
497 default: PBD::error << _("CoreAudioBackend: initialization failed.") << endmsg; break;
499 if (_pcmio->state ()) {
503 if (_n_outputs != _pcmio->n_playback_channels ()) {
504 if (_n_outputs == 0) {
505 _n_outputs = _pcmio->n_playback_channels ();
507 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
509 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
512 if (_n_inputs != _pcmio->n_capture_channels ()) {
513 if (_n_inputs == 0) {
514 _n_inputs = _pcmio->n_capture_channels ();
516 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
518 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
521 if (_pcmio->samples_per_period() != _samples_per_period) {
522 _samples_per_period = _pcmio->samples_per_period();
523 PBD::warning << _("CoreAudioBackend: samples per period does not match.") << endmsg;
526 if (_pcmio->sample_rate() != _samplerate) {
527 _samplerate = _pcmio->sample_rate();
528 engine.sample_rate_change (_samplerate);
529 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
532 _measure_latency = for_latency_measurement;
536 _port_change_flag = false;
538 if (_midi_driver_option == _("CoreMidi")) {
539 _midiio->set_enabled(true);
540 _midiio->set_port_changed_callback(midi_port_change, this);
541 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
544 if (register_system_audio_ports()) {
545 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
550 engine.sample_rate_change (_samplerate);
551 engine.buffer_size_change (_samples_per_period);
553 if (engine.reestablish_ports ()) {
554 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
559 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
561 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
562 delete _pcmio; _pcmio = 0;
568 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
571 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
575 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
585 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
591 engine.reconnect_ports ();
593 // force an initial registration_callback() & latency re-compute
594 _port_change_flag = true;
598 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
605 CoreAudioBackend::stop ()
614 _midiio->set_port_changed_callback(NULL, NULL);
617 pthread_mutex_lock (&_freewheel_mutex);
618 pthread_cond_signal (&_freewheel_signal);
619 pthread_mutex_unlock (&_freewheel_mutex);
621 if (pthread_join (_freeewheel_thread, &status)) {
622 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
629 _active_fw = false; // ??
635 CoreAudioBackend::freewheel (bool onoff)
637 if (onoff == _freewheeling) {
640 _freewheeling = onoff;
641 // wake up freewheeling thread
642 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
643 pthread_cond_signal (&_freewheel_signal);
644 pthread_mutex_unlock (&_freewheel_mutex);
650 CoreAudioBackend::dsp_load () const
652 return std::min(100.f, 100.f * _dsp_load);
656 CoreAudioBackend::raw_buffer_size (DataType t)
659 case DataType::AUDIO:
660 return _samples_per_period * sizeof(Sample);
662 return _max_buffer_size; // XXX not really limited
669 CoreAudioBackend::sample_time ()
671 return _processed_samples;
675 CoreAudioBackend::sample_time_at_cycle_start ()
677 return _processed_samples;
681 CoreAudioBackend::samples_since_cycle_start ()
683 if (!_active_ca || !_run || _freewheeling || _freewheel) {
686 if (_last_process_start == 0) {
690 const uint64_t now = AudioGetCurrentHostTime ();
691 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
692 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
696 CoreAudioBackend::name_to_id(std::string device_name) const {
697 uint32_t device_id = UINT32_MAX;
698 std::map<size_t, std::string> devices;
699 _pcmio->device_list(devices);
701 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
702 if (i->second == device_name) {
703 device_id = i->first;
711 CoreAudioBackend::coreaudio_process_thread (void *arg)
713 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
714 boost::function<void ()> f = td->f;
721 CoreAudioBackend::create_process_thread (boost::function<void()> func)
725 size_t stacksize = 100000;
727 ThreadData* td = new ThreadData (this, func, stacksize);
729 if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
730 &thread_id, coreaudio_process_thread, td)) {
731 pthread_attr_init (&attr);
732 pthread_attr_setstacksize (&attr, stacksize);
733 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
734 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
735 pthread_attr_destroy (&attr);
738 pthread_attr_destroy (&attr);
741 _threads.push_back (thread_id);
746 CoreAudioBackend::join_process_threads ()
750 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
753 if (pthread_join (*i, &status)) {
754 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
763 CoreAudioBackend::in_process_thread ()
765 if (pthread_equal (_main_thread, pthread_self()) != 0) {
769 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
771 if (pthread_equal (*i, pthread_self ()) != 0) {
779 CoreAudioBackend::process_thread_count ()
781 return _threads.size ();
785 CoreAudioBackend::update_latencies ()
787 // trigger latency callback in RT thread (locked graph)
788 port_connect_add_remove_callback();
794 CoreAudioBackend::private_handle () const
800 CoreAudioBackend::my_name () const
802 return _instance_name;
806 CoreAudioBackend::available () const
808 return _run && _active_fw && _active_ca;
812 CoreAudioBackend::port_name_size () const
818 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
820 if (!valid_port (port)) {
821 PBD::error << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
824 return static_cast<CoreBackendPort*>(port)->set_name (_instance_name + ":" + name);
828 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
830 if (!valid_port (port)) {
831 PBD::error << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
832 return std::string ();
834 return static_cast<CoreBackendPort*>(port)->name ();
838 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
840 if (!valid_port (port)) {
841 PBD::error << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
844 if (key == "http://jackaudio.org/metadata/pretty-name") {
846 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
847 if (!value.empty()) {
854 PortEngine::PortHandle
855 CoreAudioBackend::get_port_by_name (const std::string& name) const
857 PortHandle port = (PortHandle) find_port (name);
862 CoreAudioBackend::get_ports (
863 const std::string& port_name_pattern,
864 DataType type, PortFlags flags,
865 std::vector<std::string>& port_names) const
869 bool use_regexp = false;
870 if (port_name_pattern.size () > 0) {
871 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
875 for (size_t i = 0; i < _ports.size (); ++i) {
876 CoreBackendPort* port = _ports[i];
877 if ((port->type () == type) && flags == (port->flags () & flags)) {
878 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
879 port_names.push_back (port->name ());
885 regfree (&port_regex);
891 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
893 if (!valid_port (port)) {
894 return DataType::NIL;
896 return static_cast<CoreBackendPort*>(port)->type ();
899 PortEngine::PortHandle
900 CoreAudioBackend::register_port (
901 const std::string& name,
902 ARDOUR::DataType type,
903 ARDOUR::PortFlags flags)
905 if (name.size () == 0) { return 0; }
906 if (flags & IsPhysical) { return 0; }
907 return add_port (_instance_name + ":" + name, type, flags);
910 PortEngine::PortHandle
911 CoreAudioBackend::add_port (
912 const std::string& name,
913 ARDOUR::DataType type,
914 ARDOUR::PortFlags flags)
916 assert(name.size ());
917 if (find_port (name)) {
918 PBD::error << _("CoreAudioBackend::register_port: Port already exists:")
919 << " (" << name << ")" << endmsg;
922 CoreBackendPort* port = NULL;
924 case DataType::AUDIO:
925 port = new CoreAudioPort (*this, name, flags);
928 port = new CoreMidiPort (*this, name, flags);
931 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
935 _ports.push_back (port);
941 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
946 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
947 std::vector<CoreBackendPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<CoreBackendPort*>(port_handle));
948 if (i == _ports.end ()) {
949 PBD::error << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
952 disconnect_all(port_handle);
958 CoreAudioBackend::register_system_audio_ports()
962 const uint32_t a_ins = _n_inputs;
963 const uint32_t a_out = _n_outputs;
965 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device), true);
966 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device), false);
969 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
970 coreaudio_reported_input_latency,
971 coreaudio_reported_output_latency);
975 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
976 for (uint32_t i = 0; i < a_ins; ++i) {
978 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
979 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
981 set_latency_range (p, false, lr);
982 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
983 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
984 _system_inputs.push_back(cp);
987 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
988 for (uint32_t i = 0; i < a_out; ++i) {
990 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
991 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
993 set_latency_range (p, true, lr);
994 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
995 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
996 _system_outputs.push_back(cp);
1002 CoreAudioBackend::coremidi_rediscover()
1004 if (!_run) { return; }
1005 assert(_midi_driver_option == _("CoreMidi"));
1007 pthread_mutex_lock (&_process_callback_mutex);
1009 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1011 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1012 if ((*it)->name() == _midiio->port_id(i, false)) {
1021 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1023 _port_change_flag = true;
1024 unregister_port((*it));
1025 it = _system_midi_out.erase(it);
1029 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1031 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1032 if ((*it)->name() == _midiio->port_id(i, true)) {
1041 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1043 _port_change_flag = true;
1044 unregister_port((*it));
1045 it = _system_midi_in.erase(it);
1049 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1050 std::string name = _midiio->port_id(i, true);
1051 if (find_port_in(_system_midi_in, name)) {
1056 printf("register MIDI Input: %s\n", name.c_str());
1058 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1060 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1064 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1065 set_latency_range (p, false, lr);
1066 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1067 pp->set_pretty_name(_midiio->port_name(i, true));
1068 _system_midi_in.push_back(pp);
1069 _port_change_flag = true;
1072 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1073 std::string name = _midiio->port_id(i, false);
1074 if (find_port_in(_system_midi_out, name)) {
1079 printf("register MIDI OUT: %s\n", name.c_str());
1081 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1083 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1087 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1088 set_latency_range (p, false, lr);
1089 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1090 pp->set_pretty_name(_midiio->port_name(i, false));
1091 _system_midi_out.push_back(pp);
1092 _port_change_flag = true;
1096 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1097 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1099 pthread_mutex_unlock (&_process_callback_mutex);
1103 CoreAudioBackend::unregister_ports (bool system_only)
1106 _system_inputs.clear();
1107 _system_outputs.clear();
1108 _system_midi_in.clear();
1109 _system_midi_out.clear();
1110 while (i < _ports.size ()) {
1111 CoreBackendPort* port = _ports[i];
1112 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1113 port->disconnect_all ();
1115 _ports.erase (_ports.begin() + i);
1123 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1125 CoreBackendPort* src_port = find_port (src);
1126 CoreBackendPort* dst_port = find_port (dst);
1129 PBD::error << _("CoreAudioBackend::connect: Invalid Source port:")
1130 << " (" << src <<")" << endmsg;
1134 PBD::error << _("CoreAudioBackend::connect: Invalid Destination port:")
1135 << " (" << dst <<")" << endmsg;
1138 return src_port->connect (dst_port);
1142 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1144 CoreBackendPort* src_port = find_port (src);
1145 CoreBackendPort* dst_port = find_port (dst);
1147 if (!src_port || !dst_port) {
1148 PBD::error << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1151 return src_port->disconnect (dst_port);
1155 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1157 CoreBackendPort* dst_port = find_port (dst);
1158 if (!valid_port (src)) {
1159 PBD::error << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1163 PBD::error << _("CoreAudioBackend::connect: Invalid Destination Port")
1164 << " (" << dst << ")" << endmsg;
1167 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1171 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1173 CoreBackendPort* dst_port = find_port (dst);
1174 if (!valid_port (src) || !dst_port) {
1175 PBD::error << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1178 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1182 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1184 if (!valid_port (port)) {
1185 PBD::error << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1188 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1193 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1195 if (!valid_port (port)) {
1196 PBD::error << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1199 return static_cast<CoreBackendPort*>(port)->is_connected ();
1203 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1205 CoreBackendPort* dst_port = find_port (dst);
1206 if (!valid_port (src) || !dst_port) {
1207 PBD::error << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1210 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1214 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1216 if (!valid_port (port)) {
1217 PBD::error << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1220 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1224 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1226 if (!valid_port (port)) {
1227 PBD::error << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1231 assert (0 == names.size ());
1233 const std::vector<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1235 for (std::vector<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1236 names.push_back ((*i)->name ());
1239 return (int)names.size ();
1244 CoreAudioBackend::midi_event_get (
1245 pframes_t& timestamp,
1246 size_t& size, uint8_t** buf, void* port_buffer,
1247 uint32_t event_index)
1249 if (!buf || !port_buffer) return -1;
1250 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1251 if (event_index >= source.size ()) {
1254 CoreMidiEvent * const event = source[event_index].get ();
1256 timestamp = event->timestamp ();
1257 size = event->size ();
1258 *buf = event->data ();
1263 CoreAudioBackend::midi_event_put (
1265 pframes_t timestamp,
1266 const uint8_t* buffer, size_t size)
1268 if (!buffer || !port_buffer) return -1;
1269 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1270 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1272 // nevermind, ::get_buffer() sorts events
1273 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1274 (pframes_t)dst.back ()->timestamp (), timestamp);
1277 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1282 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1284 if (!port_buffer) return 0;
1285 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1289 CoreAudioBackend::midi_clear (void* port_buffer)
1291 if (!port_buffer) return;
1292 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1300 CoreAudioBackend::can_monitor_input () const
1306 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1312 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1318 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1323 /* Latency management */
1326 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1328 if (!valid_port (port)) {
1329 PBD::error << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1331 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1335 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1338 if (!valid_port (port)) {
1339 PBD::error << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1344 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1347 r = p->latency_range (for_playback);
1348 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1349 if (p->is_input() && for_playback) {
1350 r.min += _samples_per_period;
1351 r.max += _samples_per_period;
1353 if (p->is_output() && !for_playback) {
1354 r.min += _samples_per_period;
1355 r.max += _samples_per_period;
1361 /* Discovering physical ports */
1364 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1366 if (!valid_port (port)) {
1367 PBD::error << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1370 return static_cast<CoreBackendPort*>(port)->is_physical ();
1374 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1376 for (size_t i = 0; i < _ports.size (); ++i) {
1377 CoreBackendPort* port = _ports[i];
1378 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1379 port_names.push_back (port->name ());
1385 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1387 for (size_t i = 0; i < _ports.size (); ++i) {
1388 CoreBackendPort* port = _ports[i];
1389 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1390 port_names.push_back (port->name ());
1396 CoreAudioBackend::n_physical_outputs () const
1400 for (size_t i = 0; i < _ports.size (); ++i) {
1401 CoreBackendPort* port = _ports[i];
1402 if (port->is_output () && port->is_physical ()) {
1403 switch (port->type ()) {
1404 case DataType::AUDIO: ++n_audio; break;
1405 case DataType::MIDI: ++n_midi; break;
1411 cc.set (DataType::AUDIO, n_audio);
1412 cc.set (DataType::MIDI, n_midi);
1417 CoreAudioBackend::n_physical_inputs () const
1421 for (size_t i = 0; i < _ports.size (); ++i) {
1422 CoreBackendPort* port = _ports[i];
1423 if (port->is_input () && port->is_physical ()) {
1424 switch (port->type ()) {
1425 case DataType::AUDIO: ++n_audio; break;
1426 case DataType::MIDI: ++n_midi; break;
1432 cc.set (DataType::AUDIO, n_audio);
1433 cc.set (DataType::MIDI, n_midi);
1437 /* Getting access to the data buffer for a port */
1440 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1442 if (!port || !valid_port (port)) return NULL;
1443 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1447 CoreAudioBackend::pre_process ()
1449 bool connections_changed = false;
1450 bool ports_changed = false;
1451 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1452 if (_port_change_flag) {
1453 ports_changed = true;
1454 _port_change_flag = false;
1456 if (!_port_connection_queue.empty ()) {
1457 connections_changed = true;
1459 while (!_port_connection_queue.empty ()) {
1460 PortConnectData *c = _port_connection_queue.back ();
1461 manager.connect_callback (c->a, c->b, c->c);
1462 _port_connection_queue.pop_back ();
1465 pthread_mutex_unlock (&_port_callback_mutex);
1467 if (ports_changed) {
1468 manager.registration_callback();
1470 if (connections_changed) {
1471 manager.graph_order_callback();
1473 if (connections_changed || ports_changed) {
1474 engine.latency_callback(false);
1475 engine.latency_callback(true);
1480 CoreAudioBackend::freewheel_thread ()
1483 bool first_run = false;
1484 /* Freewheeling - use for export. The first call to
1485 * engine.process_callback() after engine.freewheel_callback will
1486 * if the first export cycle.
1487 * For reliable precise export timing, the calls need to be in sync.
1489 * Furthermore we need to make sure the registered process thread
1492 * _freewheeling = GUI thread state as set by ::freewheel()
1493 * _freewheel = in sync here (export thread)
1495 pthread_mutex_lock (&_freewheel_mutex);
1497 // check if we should run,
1498 if (_freewheeling != _freewheel) {
1499 if (!_freewheeling) {
1500 // prepare leaving freewheeling mode
1501 _freewheel = false; // first mark as disabled
1502 _reinit_thread_callback = true; // hand over _main_thread
1503 _freewheel_ack = false; // prepare next handshake
1504 _midiio->set_enabled(true);
1511 if (!_freewheel || !_freewheel_ack) {
1512 // wait for a change, we use a timed wait to
1513 // terminate early in case some error sets _run = 0
1516 gettimeofday (&tv, NULL);
1517 ts.tv_sec = tv.tv_sec + 3;
1519 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1524 // tell the engine we're ready to GO.
1525 engine.freewheel_callback (_freewheeling);
1527 _main_thread = pthread_self();
1528 AudioEngine::thread_init_callback (this);
1529 _midiio->set_enabled(false);
1532 // process port updates first in every cycle.
1535 // prevent coreaudio device changes
1536 pthread_mutex_lock (&_process_callback_mutex);
1540 // clear input buffers
1541 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1542 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1544 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1545 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1548 _last_process_start = 0;
1549 if (engine.process_callback (_samples_per_period)) {
1550 pthread_mutex_unlock (&_process_callback_mutex);
1554 pthread_mutex_unlock (&_process_callback_mutex);
1556 Glib::usleep (100); // don't hog cpu
1559 pthread_mutex_unlock (&_freewheel_mutex);
1564 // engine.process_callback() returner error
1565 engine.halted_callback("CoreAudio Freehweeling aborted.");
1570 #ifdef USE_MIDI_PARSER
1572 CoreAudioBackend::midi_process_byte (const uint8_t byte)
1580 midi_prepare_byte_event (byte);
1585 if (_status_byte == 0xf0) {
1586 midi_record_byte (byte);
1587 return midi_prepare_buffered_event ();
1590 _unbuffered_bytes = 0;
1591 _expected_bytes = 0;
1596 // Non-realtime status byte
1599 _unbuffered_bytes = 0;
1601 _status_byte = byte;
1602 switch (byte & 0xf0) {
1608 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
1609 _expected_bytes = 3;
1613 // Program Change, Channel Pressure
1614 _expected_bytes = 2;
1620 _expected_bytes = 0;
1624 // MTC Quarter Frame, Song Select
1625 _expected_bytes = 2;
1629 _expected_bytes = 3;
1634 _expected_bytes = 0;
1639 midi_prepare_byte_event (byte);
1640 _expected_bytes = 0;
1645 midi_record_byte (byte);
1649 if (! _status_byte) {
1650 // Data bytes without a status will be discarded.
1652 _unbuffered_bytes++;
1655 if (! _total_bytes) {
1656 midi_record_byte (_status_byte);
1658 midi_record_byte(byte);
1659 return (_total_bytes == _expected_bytes) ? midi_prepare_buffered_event() : false;
1665 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1668 uint64_t clock1, clock2;
1672 if (_run && _freewheel && !_freewheel_ack) {
1673 // acknowledge freewheeling; hand-over thread ID
1674 pthread_mutex_lock (&_freewheel_mutex);
1675 if (_freewheel) _freewheel_ack = true;
1676 pthread_cond_signal (&_freewheel_signal);
1677 pthread_mutex_unlock (&_freewheel_mutex);
1680 if (!_run || _freewheel || _preinit) {
1681 // NB if we return 1, the output is
1682 // zeroed by the coreaudio callback
1686 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1687 _reinit_thread_callback = false;
1688 _main_thread = pthread_self();
1689 AudioEngine::thread_init_callback (this);
1692 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1693 // block while devices are added/removed
1695 printf("Xrun due to device change\n");
1700 /* port-connection change */
1703 // cycle-length in usec
1704 const double nominal_time = 1e6 * n_samples / _samplerate;
1706 clock1 = g_get_monotonic_time();
1710 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1711 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>((*it)->get_buffer(0));
1714 uint8_t data[128]; // matches CoreMidi's MIDIPacket
1715 size_t size = sizeof(data);
1716 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1717 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1718 assert (time < n_samples);
1719 #ifndef USE_MIDI_PARSER
1720 midi_event_put((void*)mbuf, time, data, size);
1722 for (size_t mb = 0; mb < size; ++mb) {
1723 if (_first_time && !(data[mb] & 0x80)) {
1724 // expect a status byte at the beginning or every Packet
1728 _first_time = false;
1730 if (midi_process_byte (data[mb])) {
1731 midi_event_put ((void*)mbuf, time, _parser_buffer, _event._size);
1735 size = sizeof(data);
1741 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1742 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1745 /* clear output buffers */
1746 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1747 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1750 _midiio->start_cycle();
1751 _last_process_start = host_time;
1753 if (engine.process_callback (n_samples)) {
1754 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1755 //_pcmio->pcm_stop ();
1757 pthread_mutex_unlock (&_process_callback_mutex);
1762 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1763 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1766 /* queue outgoing midi */
1768 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1769 #if 0 // something's still b0rked with CoreMidiIo::send_events()
1770 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1771 _midiio->send_events (i, nominal_time, (void*)src);
1773 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1774 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1775 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1780 /* write back audio */
1782 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1783 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1786 _processed_samples += n_samples;
1788 /* calc DSP load. */
1789 clock2 = g_get_monotonic_time();
1790 const int64_t elapsed_time = clock2 - clock1;
1792 const float load = elapsed_time / (float) nominal_time;
1793 if (load > _dsp_load) {
1796 const float a = .2 * _samples_per_period / _samplerate;
1797 _dsp_load = _dsp_load + a * (load - _dsp_load) + 1e-12;
1800 pthread_mutex_unlock (&_process_callback_mutex);
1805 CoreAudioBackend::error_callback ()
1807 _pcmio->set_error_callback (NULL, NULL);
1808 _pcmio->set_sample_rate_callback (NULL, NULL);
1809 _pcmio->set_xrun_callback (NULL, NULL);
1810 _midiio->set_port_changed_callback(NULL, NULL);
1811 engine.halted_callback("CoreAudio Process aborted.");
1816 CoreAudioBackend::xrun_callback ()
1822 CoreAudioBackend::buffer_size_callback ()
1824 uint32_t bs = _pcmio->samples_per_period();
1825 if (bs == _samples_per_period) {
1828 _samples_per_period = bs;
1829 engine.buffer_size_change (_samples_per_period);
1833 CoreAudioBackend::sample_rate_callback ()
1837 printf("Samplerate change during initialization.\n");
1841 _pcmio->set_error_callback (NULL, NULL);
1842 _pcmio->set_sample_rate_callback (NULL, NULL);
1843 _pcmio->set_xrun_callback (NULL, NULL);
1844 _midiio->set_port_changed_callback(NULL, NULL);
1845 engine.halted_callback("Sample Rate Changed.");
1850 CoreAudioBackend::hw_changed_callback ()
1852 _reinit_thread_callback = true;
1853 engine.request_device_list_update();
1856 /******************************************************************************/
1858 static boost::shared_ptr<CoreAudioBackend> _instance;
1860 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1861 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1862 static int deinstantiate ();
1863 static bool already_configured ();
1864 static bool available ();
1866 static ARDOUR::AudioBackendInfo _descriptor = {
1875 static boost::shared_ptr<AudioBackend>
1876 backend_factory (AudioEngine& e)
1879 _instance.reset (new CoreAudioBackend (e, _descriptor));
1885 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1887 s_instance_name = arg1;
1899 already_configured ()
1910 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1912 return &_descriptor;
1916 /******************************************************************************/
1917 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1922 _capture_latency_range.min = 0;
1923 _capture_latency_range.max = 0;
1924 _playback_latency_range.min = 0;
1925 _playback_latency_range.max = 0;
1928 CoreBackendPort::~CoreBackendPort () {
1933 int CoreBackendPort::connect (CoreBackendPort *port)
1936 PBD::error << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
1940 if (type () != port->type ()) {
1941 PBD::error << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
1945 if (is_output () && port->is_output ()) {
1946 PBD::error << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
1950 if (is_input () && port->is_input ()) {
1951 PBD::error << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
1956 PBD::error << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
1960 if (is_connected (port)) {
1961 #if 0 // don't bother to warn about this for now. just ignore it
1962 PBD::error << _("CoreBackendPort::connect (): ports are already connected:")
1963 << " (" << name () << ") -> (" << port->name () << ")"
1969 _connect (port, true);
1974 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
1976 _connections.push_back (port);
1978 port->_connect (this, false);
1979 _osx_backend.port_connect_callback (name(), port->name(), true);
1983 int CoreBackendPort::disconnect (CoreBackendPort *port)
1986 PBD::error << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
1990 if (!is_connected (port)) {
1991 PBD::error << _("CoreBackendPort::disconnect (): ports are not connected:")
1992 << " (" << name () << ") -> (" << port->name () << ")"
1996 _disconnect (port, true);
2000 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2002 std::vector<CoreBackendPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
2004 assert (it != _connections.end ());
2006 _connections.erase (it);
2009 port->_disconnect (this, false);
2010 _osx_backend.port_connect_callback (name(), port->name(), false);
2015 void CoreBackendPort::disconnect_all ()
2017 while (!_connections.empty ()) {
2018 _connections.back ()->_disconnect (this, false);
2019 _osx_backend.port_connect_callback (name(), _connections.back ()->name(), false);
2020 _connections.pop_back ();
2025 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2027 return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
2030 bool CoreBackendPort::is_physically_connected () const
2032 for (std::vector<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2033 if ((*it)->is_physical ()) {
2040 /******************************************************************************/
2042 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2043 : CoreBackendPort (b, name, flags)
2045 memset (_buffer, 0, sizeof (_buffer));
2046 mlock(_buffer, sizeof (_buffer));
2049 CoreAudioPort::~CoreAudioPort () { }
2051 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2054 std::vector<CoreBackendPort*>::const_iterator it = get_connections ().begin ();
2055 if (it == get_connections ().end ()) {
2056 memset (_buffer, 0, n_samples * sizeof (Sample));
2058 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2059 assert (source && source->is_output ());
2060 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2061 while (++it != get_connections ().end ()) {
2062 source = static_cast<const CoreAudioPort*>(*it);
2063 assert (source && source->is_output ());
2064 Sample* dst = buffer ();
2065 const Sample* src = source->const_buffer ();
2066 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2076 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2077 : CoreBackendPort (b, name, flags)
2081 _buffer[0].clear ();
2082 _buffer[1].clear ();
2085 CoreMidiPort::~CoreMidiPort () { }
2087 struct MidiEventSorter {
2088 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
2093 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2096 (_buffer[_bufperiod]).clear ();
2097 for (std::vector<CoreBackendPort*>::const_iterator i = get_connections ().begin ();
2098 i != get_connections ().end ();
2100 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2101 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2102 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
2105 std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2107 return &(_buffer[_bufperiod]);
2110 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2112 , _timestamp (timestamp)
2116 _data = (uint8_t*) malloc (size);
2117 memcpy (_data, data, size);
2121 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2122 : _size (other.size ())
2123 , _timestamp (other.timestamp ())
2126 if (other.size () && other.const_data ()) {
2127 _data = (uint8_t*) malloc (other.size ());
2128 memcpy (_data, other.const_data (), other.size ());
2132 CoreMidiEvent::~CoreMidiEvent () {