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::_audio_device_status;
42 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_midi_device_status;
45 static void hw_changed_callback_ptr (void *arg)
47 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
48 d->hw_changed_callback();
51 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
52 : AudioBackend (e, info)
56 , _freewheeling (false)
58 , _freewheel_ack (false)
59 , _reinit_thread_callback (false)
60 , _measure_latency (false)
62 , _midi_driver_option(_("None"))
64 , _samples_per_period (1024)
67 , _systemic_audio_input_latency (0)
68 , _systemic_audio_output_latency (0)
70 , _processed_samples (0)
71 , _port_change_flag (false)
73 _instance_name = s_instance_name;
74 pthread_mutex_init (&_port_callback_mutex, 0);
75 pthread_mutex_init (&_process_callback_mutex, 0);
77 _pcmio = new CoreAudioPCM ();
78 _midiio = new CoreMidiIo ();
80 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
85 CoreAudioBackend::~CoreAudioBackend ()
87 delete _pcmio; _pcmio = 0;
88 delete _midiio; _midiio = 0;
89 pthread_mutex_destroy (&_port_callback_mutex);
90 pthread_mutex_destroy (&_process_callback_mutex);
93 /* AUDIOBACKEND API */
96 CoreAudioBackend::name () const
98 // XXX avoid name -conflict w/waves
99 return X_("CoreAudio2");
103 CoreAudioBackend::is_realtime () const
108 std::vector<AudioBackend::DeviceStatus>
109 CoreAudioBackend::enumerate_devices () const
111 _audio_device_status.clear();
112 std::map<size_t, std::string> devices;
113 _pcmio->device_list(devices);
115 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
116 if (_audio_device == "") _audio_device = i->second;
117 _audio_device_status.push_back (DeviceStatus (i->second, true));
119 return _audio_device_status;
123 CoreAudioBackend::available_sample_rates (const std::string&) const
125 std::vector<float> sr;
126 _pcmio->available_sample_rates(name_to_id(_audio_device), sr);
130 std::vector<uint32_t>
131 CoreAudioBackend::available_buffer_sizes (const std::string&) const
133 std::vector<uint32_t> bs;
134 _pcmio->available_buffer_sizes(name_to_id(_audio_device), bs);
139 CoreAudioBackend::available_input_channel_count (const std::string&) const
141 return 128; // TODO query current device
145 CoreAudioBackend::available_output_channel_count (const std::string&) const
147 return 128; // TODO query current device
151 CoreAudioBackend::can_change_sample_rate_when_running () const
157 CoreAudioBackend::can_change_buffer_size_when_running () const
163 CoreAudioBackend::set_device_name (const std::string& d)
166 const float sr = _pcmio->current_sample_rate(name_to_id(_audio_device));
167 if (sr > 0) { set_sample_rate(sr); }
172 CoreAudioBackend::set_sample_rate (float sr)
174 if (sr <= 0) { return -1; }
175 // TODO check if it's in the list of valid SR
177 engine.sample_rate_change (sr);
182 CoreAudioBackend::set_buffer_size (uint32_t bs)
184 if (bs <= 0 || bs >= _max_buffer_size) {
187 _samples_per_period = bs;
188 engine.buffer_size_change (bs);
193 CoreAudioBackend::set_interleaved (bool yn)
195 if (!yn) { return 0; }
200 CoreAudioBackend::set_input_channels (uint32_t cc)
207 CoreAudioBackend::set_output_channels (uint32_t cc)
214 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
216 _systemic_audio_input_latency = sl;
221 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
223 _systemic_audio_output_latency = sl;
228 CoreAudioBackend::set_systemic_midi_input_latency (std::string const device, uint32_t sl)
230 struct CoreMidiDeviceInfo * nfo = midi_device_info(device);
232 nfo->systemic_input_latency = sl;
237 CoreAudioBackend::set_systemic_midi_output_latency (std::string const device, uint32_t sl)
239 struct CoreMidiDeviceInfo * nfo = midi_device_info(device);
241 nfo->systemic_output_latency = sl;
245 /* Retrieving parameters */
247 CoreAudioBackend::device_name () const
249 return _audio_device;
253 CoreAudioBackend::sample_rate () const
259 CoreAudioBackend::buffer_size () const
261 return _samples_per_period;
265 CoreAudioBackend::interleaved () const
271 CoreAudioBackend::input_channels () const
277 CoreAudioBackend::output_channels () const
283 CoreAudioBackend::systemic_input_latency () const
285 return _systemic_audio_input_latency;
289 CoreAudioBackend::systemic_output_latency () const
291 return _systemic_audio_output_latency;
295 CoreAudioBackend::systemic_midi_input_latency (std::string const device) const
297 struct CoreMidiDeviceInfo * nfo = midi_device_info(device);
299 return nfo->systemic_input_latency;
303 CoreAudioBackend::systemic_midi_output_latency (std::string const device) const
305 struct CoreMidiDeviceInfo * nfo = midi_device_info(device);
307 return nfo->systemic_output_latency;
311 struct CoreAudioBackend::CoreMidiDeviceInfo *
312 CoreAudioBackend::midi_device_info(std::string const name) const {
316 std::vector<std::string>
317 CoreAudioBackend::enumerate_midi_options () const
319 if (_midi_options.empty()) {
320 _midi_options.push_back (_("CoreMidi"));
321 _midi_options.push_back (_("None"));
323 return _midi_options;
326 std::vector<AudioBackend::DeviceStatus>
327 CoreAudioBackend::enumerate_midi_devices () const
329 _midi_device_status.clear();
330 std::map<std::string, std::string> devices;
331 //_midi_device_status.push_back (DeviceStatus (_("CoreMidi"), true));
332 return _midi_device_status;
336 CoreAudioBackend::set_midi_option (const std::string& opt)
338 if (opt != _("None") && opt != _("CoreMidi")) {
341 _midi_driver_option = opt;
346 CoreAudioBackend::midi_option () const
348 return _midi_driver_option;
352 CoreAudioBackend::set_midi_device_enabled (std::string const device, bool enable)
354 struct CoreMidiDeviceInfo * nfo = midi_device_info(device);
356 nfo->enabled = enable;
361 CoreAudioBackend::midi_device_enabled (std::string const device) const
363 struct CoreMidiDeviceInfo * nfo = midi_device_info(device);
364 if (!nfo) return false;
369 CoreAudioBackend::launch_control_app ()
371 _pcmio->launch_control_app(name_to_id(_audio_device));
376 static void * pthread_freewheel (void *arg)
378 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
379 d->freewheel_thread ();
384 static int process_callback_ptr (void *arg)
386 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
387 return d->process_callback();
390 static void error_callback_ptr (void *arg)
392 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
396 static void midi_port_change (void *arg)
398 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
399 d->coremidi_rediscover ();
403 CoreAudioBackend::_start (bool for_latency_measurement)
405 if ((!_active_ca || !_active_fw) && _run) {
406 // recover from 'halted', reap threads
410 if (_active_ca || _active_fw || _run) {
411 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
416 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
417 _system_inputs.clear();
418 _system_outputs.clear();
419 _system_midi_in.clear();
420 _system_midi_out.clear();
424 uint32_t device_id = name_to_id(_audio_device);
426 assert(_active_ca == false);
427 assert(_active_fw == false);
429 _freewheel_ack = false;
430 _reinit_thread_callback = true;
432 _pcmio->set_error_callback (error_callback_ptr, this);
433 _pcmio->pcm_start (device_id, device_id, _samplerate, _samples_per_period, process_callback_ptr, this);
435 switch (_pcmio->state ()) {
436 case 0: /* OK */ break;
437 case -1: PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg; break;
438 default: PBD::error << _("CoreAudioBackend: initialization failed.") << endmsg; break;
440 if (_pcmio->state ()) {
444 if (_n_outputs != _pcmio->n_playback_channels ()) {
445 if (_n_outputs == 0) {
446 _n_outputs = _pcmio->n_playback_channels ();
448 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
450 PBD::warning << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
453 if (_n_inputs != _pcmio->n_capture_channels ()) {
454 if (_n_inputs == 0) {
455 _n_inputs = _pcmio->n_capture_channels ();
457 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
459 PBD::warning << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
463 if (_pcmio->sample_per_period() != _samples_per_period) {
464 _samples_per_period = _pcmio->sample_per_period();
465 PBD::warning << _("CoreAudioBackend: samples per period does not match.") << endmsg;
468 if (_pcmio->samplerate() != _samplerate) {
469 _samplerate = _pcmio->samplerate();
470 engine.sample_rate_change (_samplerate);
471 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
475 _measure_latency = for_latency_measurement;
479 _port_change_flag = false;
481 if (_midi_driver_option == _("CoreMidi")) {
482 _midiio->set_port_changed_callback(midi_port_change, this);
486 if (register_system_audio_ports()) {
487 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
492 engine.sample_rate_change (_samplerate);
493 engine.buffer_size_change (_samples_per_period);
495 if (engine.reestablish_ports ()) {
496 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
501 engine.reconnect_ports ();
503 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
505 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
506 delete _pcmio; _pcmio = 0;
512 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
515 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
519 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
529 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
540 CoreAudioBackend::stop ()
549 _midiio->set_port_changed_callback(NULL, NULL);
551 if (pthread_join (_freeewheel_thread, &status)) {
552 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
559 _active_fw = false; // ??
565 CoreAudioBackend::freewheel (bool onoff)
567 if (onoff == _freewheeling) {
570 _freewheeling = onoff;
575 CoreAudioBackend::dsp_load () const
577 return 100.f * _dsp_load;
581 CoreAudioBackend::raw_buffer_size (DataType t)
584 case DataType::AUDIO:
585 return _samples_per_period * sizeof(Sample);
587 return _max_buffer_size; // XXX not really limited
594 CoreAudioBackend::sample_time ()
596 return _processed_samples;
600 CoreAudioBackend::sample_time_at_cycle_start ()
602 return _processed_samples;
606 CoreAudioBackend::samples_since_cycle_start ()
612 CoreAudioBackend::name_to_id(std::string device_name) const {
613 uint32_t device_id = UINT32_MAX;
614 std::map<size_t, std::string> devices;
615 _pcmio->device_list(devices);
617 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
618 if (i->second == device_name) {
619 device_id = i->first;
627 CoreAudioBackend::coreaudio_process_thread (void *arg)
629 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
630 boost::function<void ()> f = td->f;
637 CoreAudioBackend::create_process_thread (boost::function<void()> func)
641 size_t stacksize = 100000;
643 ThreadData* td = new ThreadData (this, func, stacksize);
645 if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
646 &thread_id, coreaudio_process_thread, td)) {
647 pthread_attr_init (&attr);
648 pthread_attr_setstacksize (&attr, stacksize);
649 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
650 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
651 pthread_attr_destroy (&attr);
654 pthread_attr_destroy (&attr);
657 _threads.push_back (thread_id);
662 CoreAudioBackend::join_process_threads ()
666 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
669 if (pthread_join (*i, &status)) {
670 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
679 CoreAudioBackend::in_process_thread ()
681 if (pthread_equal (_main_thread, pthread_self()) != 0) {
685 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
687 if (pthread_equal (*i, pthread_self ()) != 0) {
695 CoreAudioBackend::process_thread_count ()
697 return _threads.size ();
701 CoreAudioBackend::update_latencies ()
703 // trigger latency callback in RT thread (locked graph)
704 port_connect_add_remove_callback();
710 CoreAudioBackend::private_handle () const
716 CoreAudioBackend::my_name () const
718 return _instance_name;
722 CoreAudioBackend::available () const
724 return _run && _active_fw && _active_ca;
728 CoreAudioBackend::port_name_size () const
734 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
736 if (!valid_port (port)) {
737 PBD::error << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
740 return static_cast<CoreBackendPort*>(port)->set_name (_instance_name + ":" + name);
744 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
746 if (!valid_port (port)) {
747 PBD::error << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
748 return std::string ();
750 return static_cast<CoreBackendPort*>(port)->name ();
753 PortEngine::PortHandle
754 CoreAudioBackend::get_port_by_name (const std::string& name) const
756 PortHandle port = (PortHandle) find_port (name);
761 CoreAudioBackend::get_ports (
762 const std::string& port_name_pattern,
763 DataType type, PortFlags flags,
764 std::vector<std::string>& port_names) const
768 bool use_regexp = false;
769 if (port_name_pattern.size () > 0) {
770 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
774 for (size_t i = 0; i < _ports.size (); ++i) {
775 CoreBackendPort* port = _ports[i];
776 if ((port->type () == type) && (port->flags () & flags)) {
777 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
778 port_names.push_back (port->name ());
784 regfree (&port_regex);
790 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
792 if (!valid_port (port)) {
793 return DataType::NIL;
795 return static_cast<CoreBackendPort*>(port)->type ();
798 PortEngine::PortHandle
799 CoreAudioBackend::register_port (
800 const std::string& name,
801 ARDOUR::DataType type,
802 ARDOUR::PortFlags flags)
804 if (name.size () == 0) { return 0; }
805 if (flags & IsPhysical) { return 0; }
806 return add_port (_instance_name + ":" + name, type, flags);
809 PortEngine::PortHandle
810 CoreAudioBackend::add_port (
811 const std::string& name,
812 ARDOUR::DataType type,
813 ARDOUR::PortFlags flags)
815 assert(name.size ());
816 if (find_port (name)) {
817 PBD::error << _("CoreAudioBackend::register_port: Port already exists:")
818 << " (" << name << ")" << endmsg;
821 CoreBackendPort* port = NULL;
823 case DataType::AUDIO:
824 port = new CoreAudioPort (*this, name, flags);
827 port = new CoreMidiPort (*this, name, flags);
830 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
834 _ports.push_back (port);
840 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
845 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
846 std::vector<CoreBackendPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<CoreBackendPort*>(port_handle));
847 if (i == _ports.end ()) {
848 PBD::error << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
851 disconnect_all(port_handle);
857 CoreAudioBackend::register_system_audio_ports()
860 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
861 _pcmio->get_latency(name_to_id(_audio_device), true),
862 _pcmio->get_latency(name_to_id(_audio_device), false));
865 //TODO query port names
867 const int a_ins = _n_inputs > 0 ? _n_inputs : 2;
868 const int a_out = _n_outputs > 0 ? _n_outputs : 2;
871 lr.min = lr.max = _samples_per_period + (_measure_latency ? 0 : _systemic_audio_input_latency);
872 for (int i = 1; i <= a_ins; ++i) {
874 snprintf(tmp, sizeof(tmp), "system:capture_%d", i);
875 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
877 set_latency_range (p, false, lr);
878 _system_inputs.push_back(static_cast<CoreBackendPort*>(p));
881 lr.min = lr.max = _samples_per_period + (_measure_latency ? 0 : _systemic_audio_output_latency);
882 for (int i = 1; i <= a_out; ++i) {
884 snprintf(tmp, sizeof(tmp), "system:playback_%d", i);
885 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
887 set_latency_range (p, true, lr);
888 _system_outputs.push_back(static_cast<CoreBackendPort*>(p));
894 CoreAudioBackend::register_system_midi_ports()
896 int midi_ins = _system_midi_out.size();
897 int midi_outs = _system_midi_in.size();
899 //TODO query port names
900 for (uint32_t i = midi_ins; i < _midiio->n_midi_outputs(); ++i) {
902 snprintf(tmp, sizeof(tmp), "system:midi_playback_%d", ++midi_ins);
903 PortHandle p = add_port(std::string(tmp), DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
908 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
909 set_latency_range (p, false, lr);
910 _system_midi_out.push_back(static_cast<CoreBackendPort*>(p));
913 for (uint32_t i = midi_outs; i < _midiio->n_midi_inputs(); ++i) {
915 snprintf(tmp, sizeof(tmp), "system:midi_capture_%d", ++midi_outs);
916 PortHandle p = add_port(std::string(tmp), DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
921 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
922 set_latency_range (p, false, lr);
923 _system_midi_in.push_back(static_cast<CoreBackendPort*>(p));
930 CoreAudioBackend::coremidi_rediscover()
932 if (!_run) { return; }
933 assert(_midi_driver_option == _("CoreMidi"));
935 pthread_mutex_lock (&_process_callback_mutex);
937 // TODO maintain device-specific connections, rather
939 while (_system_midi_out.size() > _midiio->n_midi_outputs()) {
940 CoreBackendPort* p = _system_midi_out.back();
941 _system_midi_out.pop_back();
945 while (_system_midi_in.size() > _midiio->n_midi_inputs()) {
946 CoreBackendPort* p = _system_midi_in.back();
947 _system_midi_in.pop_back();
951 register_system_midi_ports();
953 _port_change_flag = true;
954 pthread_mutex_unlock (&_process_callback_mutex);
958 CoreAudioBackend::unregister_ports (bool system_only)
961 _system_inputs.clear();
962 _system_outputs.clear();
963 _system_midi_in.clear();
964 _system_midi_out.clear();
965 while (i < _ports.size ()) {
966 CoreBackendPort* port = _ports[i];
967 if (! system_only || (port->is_physical () && port->is_terminal ())) {
968 port->disconnect_all ();
970 _ports.erase (_ports.begin() + i);
978 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
980 CoreBackendPort* src_port = find_port (src);
981 CoreBackendPort* dst_port = find_port (dst);
984 PBD::error << _("CoreAudioBackend::connect: Invalid Source port:")
985 << " (" << src <<")" << endmsg;
989 PBD::error << _("CoreAudioBackend::connect: Invalid Destination port:")
990 << " (" << dst <<")" << endmsg;
993 return src_port->connect (dst_port);
997 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
999 CoreBackendPort* src_port = find_port (src);
1000 CoreBackendPort* dst_port = find_port (dst);
1002 if (!src_port || !dst_port) {
1003 PBD::error << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1006 return src_port->disconnect (dst_port);
1010 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1012 CoreBackendPort* dst_port = find_port (dst);
1013 if (!valid_port (src)) {
1014 PBD::error << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1018 PBD::error << _("CoreAudioBackend::connect: Invalid Destination Port")
1019 << " (" << dst << ")" << endmsg;
1022 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1026 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1028 CoreBackendPort* dst_port = find_port (dst);
1029 if (!valid_port (src) || !dst_port) {
1030 PBD::error << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1033 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1037 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1039 if (!valid_port (port)) {
1040 PBD::error << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1043 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1048 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1050 if (!valid_port (port)) {
1051 PBD::error << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1054 return static_cast<CoreBackendPort*>(port)->is_connected ();
1058 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1060 CoreBackendPort* dst_port = find_port (dst);
1061 if (!valid_port (src) || !dst_port) {
1062 PBD::error << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1065 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1069 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1071 if (!valid_port (port)) {
1072 PBD::error << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1075 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1079 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1081 if (!valid_port (port)) {
1082 PBD::error << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1086 assert (0 == names.size ());
1088 const std::vector<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1090 for (std::vector<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1091 names.push_back ((*i)->name ());
1094 return (int)names.size ();
1099 CoreAudioBackend::midi_event_get (
1100 pframes_t& timestamp,
1101 size_t& size, uint8_t** buf, void* port_buffer,
1102 uint32_t event_index)
1104 assert (buf && port_buffer);
1105 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1106 if (event_index >= source.size ()) {
1109 CoreMidiEvent * const event = source[event_index].get ();
1111 timestamp = event->timestamp ();
1112 size = event->size ();
1113 *buf = event->data ();
1118 CoreAudioBackend::midi_event_put (
1120 pframes_t timestamp,
1121 const uint8_t* buffer, size_t size)
1123 assert (buffer && port_buffer);
1124 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1125 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1126 fprintf (stderr, "CoreMidiBuffer: it's too late for this event. %d > %d\n",
1127 (pframes_t)dst.back ()->timestamp (), timestamp);
1130 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1135 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1137 assert (port_buffer);
1138 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1142 CoreAudioBackend::midi_clear (void* port_buffer)
1144 assert (port_buffer);
1145 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1153 CoreAudioBackend::can_monitor_input () const
1159 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1165 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1171 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1176 /* Latency management */
1179 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1181 if (!valid_port (port)) {
1182 PBD::error << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1184 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1188 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1190 if (!valid_port (port)) {
1191 PBD::error << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1197 return static_cast<CoreBackendPort*>(port)->latency_range (for_playback);
1200 /* Discovering physical ports */
1203 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1205 if (!valid_port (port)) {
1206 PBD::error << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1209 return static_cast<CoreBackendPort*>(port)->is_physical ();
1213 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1215 for (size_t i = 0; i < _ports.size (); ++i) {
1216 CoreBackendPort* port = _ports[i];
1217 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1218 port_names.push_back (port->name ());
1224 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1226 for (size_t i = 0; i < _ports.size (); ++i) {
1227 CoreBackendPort* port = _ports[i];
1228 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1229 port_names.push_back (port->name ());
1235 CoreAudioBackend::n_physical_outputs () const
1239 for (size_t i = 0; i < _ports.size (); ++i) {
1240 CoreBackendPort* port = _ports[i];
1241 if (port->is_output () && port->is_physical ()) {
1242 switch (port->type ()) {
1243 case DataType::AUDIO: ++n_audio; break;
1244 case DataType::MIDI: ++n_midi; break;
1250 cc.set (DataType::AUDIO, n_audio);
1251 cc.set (DataType::MIDI, n_midi);
1256 CoreAudioBackend::n_physical_inputs () const
1260 for (size_t i = 0; i < _ports.size (); ++i) {
1261 CoreBackendPort* port = _ports[i];
1262 if (port->is_input () && port->is_physical ()) {
1263 switch (port->type ()) {
1264 case DataType::AUDIO: ++n_audio; break;
1265 case DataType::MIDI: ++n_midi; break;
1271 cc.set (DataType::AUDIO, n_audio);
1272 cc.set (DataType::MIDI, n_midi);
1276 /* Getting access to the data buffer for a port */
1279 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1282 assert (valid_port (port));
1283 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1287 CoreAudioBackend::post_process ()
1289 bool connections_changed = false;
1290 bool ports_changed = false;
1291 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1292 if (_port_change_flag) {
1293 ports_changed = true;
1294 _port_change_flag = false;
1296 if (!_port_connection_queue.empty ()) {
1297 connections_changed = true;
1299 while (!_port_connection_queue.empty ()) {
1300 PortConnectData *c = _port_connection_queue.back ();
1301 manager.connect_callback (c->a, c->b, c->c);
1302 _port_connection_queue.pop_back ();
1305 pthread_mutex_unlock (&_port_callback_mutex);
1307 if (ports_changed) {
1308 manager.registration_callback();
1310 if (connections_changed) {
1311 manager.graph_order_callback();
1313 if (connections_changed || ports_changed) {
1314 engine.latency_callback(false);
1315 engine.latency_callback(true);
1320 CoreAudioBackend::freewheel_thread ()
1323 bool first_run = false;
1325 // check if we should run,
1326 if (_freewheeling != _freewheel) {
1327 if (!_freewheeling) {
1328 // handshake w/ coreaudio
1329 _reinit_thread_callback = true;
1330 _freewheel_ack = false;
1333 engine.freewheel_callback (_freewheeling);
1335 _freewheel = _freewheeling;
1338 if (!_freewheel || !_freewheel_ack) {
1339 // TODO use a pthread sync/sleep
1340 Glib::usleep(200000);
1346 _main_thread = pthread_self();
1347 AudioEngine::thread_init_callback (this);
1351 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1352 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1354 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1355 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1358 if (engine.process_callback (_samples_per_period)) {
1362 Glib::usleep (100); // don't hog cpu
1369 if (_run && _freewheel) {
1370 engine.halted_callback("CoreAudio Freehweeling aborted.");
1376 CoreAudioBackend::process_callback ()
1379 uint64_t clock1, clock2;
1383 if (_run && _freewheel && !_freewheel_ack) {
1384 _freewheel_ack = true;
1387 if (!_run || _freewheel || _preinit) {
1391 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1395 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1396 _reinit_thread_callback = false;
1397 _main_thread = pthread_self();
1398 AudioEngine::thread_init_callback (this);
1400 manager.registration_callback();
1401 manager.graph_order_callback();
1404 const uint32_t n_samples = _pcmio->n_samples();
1406 #if 0 // here in RT callback ?? XXX
1407 if (_samples_per_period != n_samples) {
1408 printf("CoreAudio Adjust SPP %zu -> %d\n", _samples_per_period, n_samples);
1409 _samples_per_period = n_samples;
1410 engine.buffer_size_change (_samples_per_period);
1411 // TODO update latencies
1415 // cycle-length in usec
1416 const int64_t nominal_time = 1e6 * n_samples / _samplerate;
1418 clock1 = g_get_monotonic_time();
1422 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1423 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>((*it)->get_buffer(0));
1426 uint8_t data[64]; // match MaxAlsaEventSize in alsa_rawmidi.cc
1427 size_t size = sizeof(data);
1428 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1429 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1430 assert (time < n_samples);
1431 midi_event_put((void*)mbuf, time, data, size);
1432 size = sizeof(data);
1438 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1439 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1442 /* clear output buffers */
1443 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1444 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1447 _midiio->start_cycle();
1449 if (engine.process_callback (n_samples)) {
1450 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1451 //_pcmio->pcm_stop ();
1453 pthread_mutex_unlock (&_process_callback_mutex);
1458 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1459 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1462 /* queue outgoing midi */
1464 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1465 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1466 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1467 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1471 /* write back audio */
1473 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1474 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1477 _processed_samples += n_samples;
1479 /* calc DSP load. */
1480 clock2 = g_get_monotonic_time();
1481 const int64_t elapsed_time = clock2 - clock1;
1482 _dsp_load = elapsed_time / (float) nominal_time;
1484 //engine.Xrun (); // TODO, if any
1486 /* port-connection change */
1488 pthread_mutex_unlock (&_process_callback_mutex);
1493 CoreAudioBackend::error_callback ()
1495 _pcmio->set_error_callback (NULL, NULL);
1496 engine.halted_callback("CoreAudio Process aborted.");
1500 CoreAudioBackend::hw_changed_callback ()
1502 _reinit_thread_callback = true;
1503 engine.request_device_list_update();
1506 /******************************************************************************/
1508 static boost::shared_ptr<CoreAudioBackend> _instance;
1510 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1511 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1512 static int deinstantiate ();
1513 static bool already_configured ();
1514 static bool available ();
1516 static ARDOUR::AudioBackendInfo _descriptor = {
1525 static boost::shared_ptr<AudioBackend>
1526 backend_factory (AudioEngine& e)
1529 _instance.reset (new CoreAudioBackend (e, _descriptor));
1535 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1537 s_instance_name = arg1;
1549 already_configured ()
1560 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1562 return &_descriptor;
1566 /******************************************************************************/
1567 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1572 _capture_latency_range.min = 0;
1573 _capture_latency_range.max = 0;
1574 _playback_latency_range.min = 0;
1575 _playback_latency_range.max = 0;
1578 CoreBackendPort::~CoreBackendPort () {
1583 int CoreBackendPort::connect (CoreBackendPort *port)
1586 PBD::error << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
1590 if (type () != port->type ()) {
1591 PBD::error << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
1595 if (is_output () && port->is_output ()) {
1596 PBD::error << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
1600 if (is_input () && port->is_input ()) {
1601 PBD::error << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
1606 PBD::error << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
1610 if (is_connected (port)) {
1611 #if 0 // don't bother to warn about this for now. just ignore it
1612 PBD::error << _("CoreBackendPort::connect (): ports are already connected:")
1613 << " (" << name () << ") -> (" << port->name () << ")"
1619 _connect (port, true);
1624 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
1626 _connections.push_back (port);
1628 port->_connect (this, false);
1629 _osx_backend.port_connect_callback (name(), port->name(), true);
1633 int CoreBackendPort::disconnect (CoreBackendPort *port)
1636 PBD::error << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
1640 if (!is_connected (port)) {
1641 PBD::error << _("CoreBackendPort::disconnect (): ports are not connected:")
1642 << " (" << name () << ") -> (" << port->name () << ")"
1646 _disconnect (port, true);
1650 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
1652 std::vector<CoreBackendPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
1654 assert (it != _connections.end ());
1656 _connections.erase (it);
1659 port->_disconnect (this, false);
1660 _osx_backend.port_connect_callback (name(), port->name(), false);
1665 void CoreBackendPort::disconnect_all ()
1667 while (!_connections.empty ()) {
1668 _connections.back ()->_disconnect (this, false);
1669 _osx_backend.port_connect_callback (name(), _connections.back ()->name(), false);
1670 _connections.pop_back ();
1675 CoreBackendPort::is_connected (const CoreBackendPort *port) const
1677 return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
1680 bool CoreBackendPort::is_physically_connected () const
1682 for (std::vector<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
1683 if ((*it)->is_physical ()) {
1690 /******************************************************************************/
1692 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1693 : CoreBackendPort (b, name, flags)
1695 memset (_buffer, 0, sizeof (_buffer));
1696 mlock(_buffer, sizeof (_buffer));
1699 CoreAudioPort::~CoreAudioPort () { }
1701 void* CoreAudioPort::get_buffer (pframes_t n_samples)
1704 std::vector<CoreBackendPort*>::const_iterator it = get_connections ().begin ();
1705 if (it == get_connections ().end ()) {
1706 memset (_buffer, 0, n_samples * sizeof (Sample));
1708 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
1709 assert (source && source->is_output ());
1710 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
1711 while (++it != get_connections ().end ()) {
1712 source = static_cast<const CoreAudioPort*>(*it);
1713 assert (source && source->is_output ());
1714 Sample* dst = buffer ();
1715 const Sample* src = source->const_buffer ();
1716 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
1726 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1727 : CoreBackendPort (b, name, flags)
1731 _buffer[0].clear ();
1732 _buffer[1].clear ();
1735 CoreMidiPort::~CoreMidiPort () { }
1737 struct MidiEventSorter {
1738 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
1743 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
1746 (_buffer[_bufperiod]).clear ();
1747 for (std::vector<CoreBackendPort*>::const_iterator i = get_connections ().begin ();
1748 i != get_connections ().end ();
1750 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
1751 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
1752 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
1755 std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
1757 return &(_buffer[_bufperiod]);
1760 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
1762 , _timestamp (timestamp)
1766 _data = (uint8_t*) malloc (size);
1767 memcpy (_data, data, size);
1771 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
1772 : _size (other.size ())
1773 , _timestamp (other.timestamp ())
1776 if (other.size () && other.const_data ()) {
1777 _data = (uint8_t*) malloc (other.size ());
1778 memcpy (_data, other.const_data (), other.size ());
1782 CoreMidiEvent::~CoreMidiEvent () {