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.
21 /* use an additional midi message parser
23 * coreaudio does packetize midi. every packet includes a timestamp.
24 * With any real midi-device with a phyical layer
25 * 1 packet = 1 event (no concurrent events are possible on a cable)
27 * Howver, some USB-midi keyboards manage to send concurrent events
28 * which end up in the same packet (eg. 6 byte message: 2 note-on).
30 * An additional parser is needed to separate them
32 #define USE_MIDI_PARSER
41 #include "coreaudio_backend.h"
42 #include "rt_thread.h"
44 #include "pbd/compose.h"
45 #include "pbd/error.h"
46 #include "pbd/file_utils.h"
47 #include "ardour/filesystem_paths.h"
48 #include "ardour/port_manager.h"
51 using namespace ARDOUR;
53 static std::string s_instance_name;
54 size_t CoreAudioBackend::_max_buffer_size = 8192;
55 std::vector<std::string> CoreAudioBackend::_midi_options;
56 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
57 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
58 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
61 /* static class instance access */
62 static void hw_changed_callback_ptr (void *arg)
64 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
65 d->hw_changed_callback();
68 static void error_callback_ptr (void *arg)
70 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
74 static void xrun_callback_ptr (void *arg)
76 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
80 static void buffer_size_callback_ptr (void *arg)
82 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
83 d->buffer_size_callback();
86 static void sample_rate_callback_ptr (void *arg)
88 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
89 d->sample_rate_callback();
92 static void midi_port_change (void *arg)
94 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
95 d->coremidi_rediscover ();
99 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
100 : AudioBackend (e, info)
104 , _freewheeling (false)
106 , _freewheel_ack (false)
107 , _reinit_thread_callback (false)
108 , _measure_latency (false)
109 , _last_process_start (0)
110 , _input_audio_device("")
111 , _output_audio_device("")
112 , _midi_driver_option(_("None"))
113 , _samplerate (48000)
114 , _samples_per_period (1024)
117 , _systemic_audio_input_latency (0)
118 , _systemic_audio_output_latency (0)
120 , _processed_samples (0)
121 , _port_change_flag (false)
122 #ifdef USE_MIDI_PARSER
123 , _unbuffered_bytes(0)
130 _instance_name = s_instance_name;
131 pthread_mutex_init (&_port_callback_mutex, 0);
132 pthread_mutex_init (&_process_callback_mutex, 0);
133 pthread_mutex_init (&_freewheel_mutex, 0);
134 pthread_cond_init (&_freewheel_signal, 0);
136 _pcmio = new CoreAudioPCM ();
137 _midiio = new CoreMidiIo ();
139 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
143 CoreAudioBackend::~CoreAudioBackend ()
145 delete _pcmio; _pcmio = 0;
146 delete _midiio; _midiio = 0;
147 pthread_mutex_destroy (&_port_callback_mutex);
148 pthread_mutex_destroy (&_process_callback_mutex);
149 pthread_mutex_destroy (&_freewheel_mutex);
150 pthread_cond_destroy (&_freewheel_signal);
153 /* AUDIOBACKEND API */
156 CoreAudioBackend::name () const
158 return X_("CoreAudio");
162 CoreAudioBackend::is_realtime () const
167 std::vector<AudioBackend::DeviceStatus>
168 CoreAudioBackend::enumerate_devices () const
170 _duplex_audio_device_status.clear();
171 std::map<size_t, std::string> devices;
172 _pcmio->duplex_device_list(devices);
174 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
175 if (_input_audio_device == "") _input_audio_device = i->second;
176 if (_output_audio_device == "") _output_audio_device = i->second;
177 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
179 return _duplex_audio_device_status;
182 std::vector<AudioBackend::DeviceStatus>
183 CoreAudioBackend::enumerate_input_devices () const
185 _input_audio_device_status.clear();
186 std::map<size_t, std::string> devices;
187 _pcmio->input_device_list(devices);
189 _input_audio_device_status.push_back (DeviceStatus (_("None"), true));
190 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
191 if (_input_audio_device == "") _input_audio_device = i->second;
192 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
194 return _input_audio_device_status;
198 std::vector<AudioBackend::DeviceStatus>
199 CoreAudioBackend::enumerate_output_devices () const
201 _output_audio_device_status.clear();
202 std::map<size_t, std::string> devices;
203 _pcmio->output_device_list(devices);
205 _output_audio_device_status.push_back (DeviceStatus (_("None"), true));
206 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
207 if (_output_audio_device == "") _output_audio_device = i->second;
208 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
210 return _output_audio_device_status;
214 CoreAudioBackend::available_sample_rates (const std::string&) const
216 std::vector<float> sr;
217 std::vector<float> sr_in;
218 std::vector<float> sr_out;
220 const uint32_t inp = name_to_id(_input_audio_device);
221 const uint32_t out = name_to_id(_output_audio_device);
222 if (inp == UINT32_MAX && out == UINT32_MAX) {
224 } else if (inp == UINT32_MAX) {
225 _pcmio->available_sample_rates(out, sr_out);
227 } else if (out == UINT32_MAX) {
228 _pcmio->available_sample_rates(inp, sr_in);
231 _pcmio->available_sample_rates(inp, sr_in);
232 _pcmio->available_sample_rates(out, sr_out);
233 // TODO allow to use different SR per device, tweak aggregate
234 std::set_intersection(sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
239 std::vector<uint32_t>
240 CoreAudioBackend::available_buffer_sizes (const std::string&) const
242 std::vector<uint32_t> bs;
243 std::vector<uint32_t> bs_in;
244 std::vector<uint32_t> bs_out;
245 const uint32_t inp = name_to_id(_input_audio_device);
246 const uint32_t out = name_to_id(_output_audio_device);
247 if (inp == UINT32_MAX && out == UINT32_MAX) {
249 } else if (inp == UINT32_MAX) {
250 _pcmio->available_buffer_sizes(out, bs_out);
252 } else if (out == UINT32_MAX) {
253 _pcmio->available_buffer_sizes(out, bs_in);
256 _pcmio->available_buffer_sizes(inp, bs_in);
257 _pcmio->available_buffer_sizes(out, bs_out);
258 std::set_intersection(bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
264 CoreAudioBackend::available_input_channel_count (const std::string&) const
266 return 128; // TODO query current device
270 CoreAudioBackend::available_output_channel_count (const std::string&) const
272 return 128; // TODO query current device
276 CoreAudioBackend::can_change_sample_rate_when_running () const
282 CoreAudioBackend::can_change_buffer_size_when_running () const
288 CoreAudioBackend::set_device_name (const std::string& d)
291 rv |= set_input_device_name (d);
292 rv |= set_output_device_name (d);
297 CoreAudioBackend::set_input_device_name (const std::string& d)
299 _input_audio_device = d;
300 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device));
301 if (sr > 0) { set_sample_rate(sr); }
306 CoreAudioBackend::set_output_device_name (const std::string& d)
308 _output_audio_device = d;
310 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device));
311 if (sr > 0) { set_sample_rate(sr); }
316 CoreAudioBackend::set_sample_rate (float sr)
318 std::vector<float> srs = available_sample_rates (/* really ignored */_input_audio_device);
319 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
323 engine.sample_rate_change (sr);
328 CoreAudioBackend::set_buffer_size (uint32_t bs)
330 if (bs <= 0 || bs >= _max_buffer_size) {
333 _samples_per_period = bs;
334 _pcmio->set_samples_per_period(bs);
335 engine.buffer_size_change (bs);
340 CoreAudioBackend::set_interleaved (bool yn)
342 if (!yn) { return 0; }
347 CoreAudioBackend::set_input_channels (uint32_t cc)
354 CoreAudioBackend::set_output_channels (uint32_t cc)
361 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
363 _systemic_audio_input_latency = sl;
368 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
370 _systemic_audio_output_latency = sl;
374 /* Retrieving parameters */
376 CoreAudioBackend::device_name () const
382 CoreAudioBackend::input_device_name () const
384 return _input_audio_device;
388 CoreAudioBackend::output_device_name () const
390 return _output_audio_device;
394 CoreAudioBackend::sample_rate () const
400 CoreAudioBackend::buffer_size () const
402 return _samples_per_period;
406 CoreAudioBackend::interleaved () const
412 CoreAudioBackend::input_channels () const
418 CoreAudioBackend::output_channels () const
424 CoreAudioBackend::systemic_input_latency () const
426 return _systemic_audio_input_latency;
430 CoreAudioBackend::systemic_output_latency () const
432 return _systemic_audio_output_latency;
437 std::vector<std::string>
438 CoreAudioBackend::enumerate_midi_options () const
440 if (_midi_options.empty()) {
441 _midi_options.push_back (_("CoreMidi"));
442 _midi_options.push_back (_("None"));
444 return _midi_options;
448 CoreAudioBackend::set_midi_option (const std::string& opt)
450 if (opt != _("None") && opt != _("CoreMidi")) {
453 _midi_driver_option = opt;
458 CoreAudioBackend::midi_option () const
460 return _midi_driver_option;
464 CoreAudioBackend::launch_control_app ()
466 _pcmio->launch_control_app(name_to_id(_input_audio_device));
471 static void * pthread_freewheel (void *arg)
473 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
474 d->freewheel_thread ();
479 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
481 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
482 return d->process_callback(n_samples, host_time);
486 CoreAudioBackend::_start (bool for_latency_measurement)
488 if ((!_active_ca || !_active_fw) && _run) {
489 // recover from 'halted', reap threads
493 if (_active_ca || _active_fw || _run) {
494 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
499 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
500 _system_inputs.clear();
501 _system_outputs.clear();
502 _system_midi_in.clear();
503 _system_midi_out.clear();
507 uint32_t device1 = name_to_id(_input_audio_device);
508 uint32_t device2 = name_to_id(_output_audio_device);
510 assert(_active_ca == false);
511 assert(_active_fw == false);
513 _freewheel_ack = false;
514 _reinit_thread_callback = true;
515 _last_process_start = 0;
517 _pcmio->set_error_callback (error_callback_ptr, this);
518 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
519 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
521 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
522 printf("STATE: %d\n", _pcmio->state ());
524 switch (_pcmio->state ()) {
525 case 0: /* OK */ break;
526 case -1: PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg; break;
527 default: PBD::error << _("CoreAudioBackend: initialization failed.") << endmsg; break;
529 if (_pcmio->state ()) {
533 if (_n_outputs != _pcmio->n_playback_channels ()) {
534 if (_n_outputs == 0) {
535 _n_outputs = _pcmio->n_playback_channels ();
537 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
539 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
542 if (_n_inputs != _pcmio->n_capture_channels ()) {
543 if (_n_inputs == 0) {
544 _n_inputs = _pcmio->n_capture_channels ();
546 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
548 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
551 if (_pcmio->samples_per_period() != _samples_per_period) {
552 _samples_per_period = _pcmio->samples_per_period();
553 PBD::warning << _("CoreAudioBackend: samples per period does not match.") << endmsg;
556 if (_pcmio->sample_rate() != _samplerate) {
557 _samplerate = _pcmio->sample_rate();
558 engine.sample_rate_change (_samplerate);
559 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
562 _measure_latency = for_latency_measurement;
566 _port_change_flag = false;
568 if (_midi_driver_option == _("CoreMidi")) {
569 _midiio->set_enabled(true);
570 _midiio->set_port_changed_callback(midi_port_change, this);
571 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
574 if (register_system_audio_ports()) {
575 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
580 engine.sample_rate_change (_samplerate);
581 engine.buffer_size_change (_samples_per_period);
583 if (engine.reestablish_ports ()) {
584 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
589 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
591 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
592 delete _pcmio; _pcmio = 0;
598 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
601 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
605 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
615 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
621 engine.reconnect_ports ();
623 // force an initial registration_callback() & latency re-compute
624 _port_change_flag = true;
628 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
635 CoreAudioBackend::stop ()
644 _midiio->set_port_changed_callback(NULL, NULL);
647 pthread_mutex_lock (&_freewheel_mutex);
648 pthread_cond_signal (&_freewheel_signal);
649 pthread_mutex_unlock (&_freewheel_mutex);
651 if (pthread_join (_freeewheel_thread, &status)) {
652 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
659 _active_fw = false; // ??
665 CoreAudioBackend::freewheel (bool onoff)
667 if (onoff == _freewheeling) {
670 _freewheeling = onoff;
671 // wake up freewheeling thread
672 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
673 pthread_cond_signal (&_freewheel_signal);
674 pthread_mutex_unlock (&_freewheel_mutex);
680 CoreAudioBackend::dsp_load () const
682 return std::min(100.f, 100.f * _dsp_load);
686 CoreAudioBackend::raw_buffer_size (DataType t)
689 case DataType::AUDIO:
690 return _samples_per_period * sizeof(Sample);
692 return _max_buffer_size; // XXX not really limited
699 CoreAudioBackend::sample_time ()
701 return _processed_samples;
705 CoreAudioBackend::sample_time_at_cycle_start ()
707 return _processed_samples;
711 CoreAudioBackend::samples_since_cycle_start ()
713 if (!_active_ca || !_run || _freewheeling || _freewheel) {
716 if (_last_process_start == 0) {
720 const uint64_t now = AudioGetCurrentHostTime ();
721 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
722 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
726 CoreAudioBackend::name_to_id(std::string device_name) const {
727 uint32_t device_id = UINT32_MAX;
728 std::map<size_t, std::string> devices;
729 _pcmio->device_list(devices);
731 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
732 if (i->second == device_name) {
733 device_id = i->first;
741 CoreAudioBackend::coreaudio_process_thread (void *arg)
743 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
744 boost::function<void ()> f = td->f;
751 CoreAudioBackend::create_process_thread (boost::function<void()> func)
755 size_t stacksize = 100000;
757 ThreadData* td = new ThreadData (this, func, stacksize);
759 if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
760 &thread_id, coreaudio_process_thread, td)) {
761 pthread_attr_init (&attr);
762 pthread_attr_setstacksize (&attr, stacksize);
763 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
764 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
765 pthread_attr_destroy (&attr);
768 pthread_attr_destroy (&attr);
771 _threads.push_back (thread_id);
776 CoreAudioBackend::join_process_threads ()
780 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
783 if (pthread_join (*i, &status)) {
784 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
793 CoreAudioBackend::in_process_thread ()
795 if (pthread_equal (_main_thread, pthread_self()) != 0) {
799 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
801 if (pthread_equal (*i, pthread_self ()) != 0) {
809 CoreAudioBackend::process_thread_count ()
811 return _threads.size ();
815 CoreAudioBackend::update_latencies ()
817 // trigger latency callback in RT thread (locked graph)
818 port_connect_add_remove_callback();
824 CoreAudioBackend::private_handle () const
830 CoreAudioBackend::my_name () const
832 return _instance_name;
836 CoreAudioBackend::available () const
838 return _run && _active_fw && _active_ca;
842 CoreAudioBackend::port_name_size () const
848 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
850 if (!valid_port (port)) {
851 PBD::error << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
854 return static_cast<CoreBackendPort*>(port)->set_name (_instance_name + ":" + name);
858 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
860 if (!valid_port (port)) {
861 PBD::error << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
862 return std::string ();
864 return static_cast<CoreBackendPort*>(port)->name ();
868 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
870 if (!valid_port (port)) {
871 PBD::error << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
874 if (key == "http://jackaudio.org/metadata/pretty-name") {
876 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
877 if (!value.empty()) {
884 PortEngine::PortHandle
885 CoreAudioBackend::get_port_by_name (const std::string& name) const
887 PortHandle port = (PortHandle) find_port (name);
892 CoreAudioBackend::get_ports (
893 const std::string& port_name_pattern,
894 DataType type, PortFlags flags,
895 std::vector<std::string>& port_names) const
899 bool use_regexp = false;
900 if (port_name_pattern.size () > 0) {
901 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
905 for (size_t i = 0; i < _ports.size (); ++i) {
906 CoreBackendPort* port = _ports[i];
907 if ((port->type () == type) && flags == (port->flags () & flags)) {
908 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
909 port_names.push_back (port->name ());
915 regfree (&port_regex);
921 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
923 if (!valid_port (port)) {
924 return DataType::NIL;
926 return static_cast<CoreBackendPort*>(port)->type ();
929 PortEngine::PortHandle
930 CoreAudioBackend::register_port (
931 const std::string& name,
932 ARDOUR::DataType type,
933 ARDOUR::PortFlags flags)
935 if (name.size () == 0) { return 0; }
936 if (flags & IsPhysical) { return 0; }
937 return add_port (_instance_name + ":" + name, type, flags);
940 PortEngine::PortHandle
941 CoreAudioBackend::add_port (
942 const std::string& name,
943 ARDOUR::DataType type,
944 ARDOUR::PortFlags flags)
946 assert(name.size ());
947 if (find_port (name)) {
948 PBD::error << _("CoreAudioBackend::register_port: Port already exists:")
949 << " (" << name << ")" << endmsg;
952 CoreBackendPort* port = NULL;
954 case DataType::AUDIO:
955 port = new CoreAudioPort (*this, name, flags);
958 port = new CoreMidiPort (*this, name, flags);
961 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
965 _ports.push_back (port);
971 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
976 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
977 std::vector<CoreBackendPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<CoreBackendPort*>(port_handle));
978 if (i == _ports.end ()) {
979 PBD::error << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
982 disconnect_all(port_handle);
988 CoreAudioBackend::register_system_audio_ports()
992 const uint32_t a_ins = _n_inputs;
993 const uint32_t a_out = _n_outputs;
995 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device), true);
996 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device), false);
999 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1000 coreaudio_reported_input_latency,
1001 coreaudio_reported_output_latency);
1005 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1006 for (uint32_t i = 0; i < a_ins; ++i) {
1008 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1009 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1011 set_latency_range (p, false, lr);
1012 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1013 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1014 _system_inputs.push_back(cp);
1017 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1018 for (uint32_t i = 0; i < a_out; ++i) {
1020 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1021 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1023 set_latency_range (p, true, lr);
1024 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1025 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1026 _system_outputs.push_back(cp);
1032 CoreAudioBackend::coremidi_rediscover()
1034 if (!_run) { return; }
1035 assert(_midi_driver_option == _("CoreMidi"));
1037 pthread_mutex_lock (&_process_callback_mutex);
1039 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1041 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1042 if ((*it)->name() == _midiio->port_id(i, false)) {
1051 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1053 _port_change_flag = true;
1054 unregister_port((*it));
1055 it = _system_midi_out.erase(it);
1059 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1061 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1062 if ((*it)->name() == _midiio->port_id(i, true)) {
1071 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1073 _port_change_flag = true;
1074 unregister_port((*it));
1075 it = _system_midi_in.erase(it);
1079 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1080 std::string name = _midiio->port_id(i, true);
1081 if (find_port_in(_system_midi_in, name)) {
1086 printf("register MIDI Input: %s\n", name.c_str());
1088 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1090 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1094 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1095 set_latency_range (p, false, lr);
1096 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1097 pp->set_pretty_name(_midiio->port_name(i, true));
1098 _system_midi_in.push_back(pp);
1099 _port_change_flag = true;
1102 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1103 std::string name = _midiio->port_id(i, false);
1104 if (find_port_in(_system_midi_out, name)) {
1109 printf("register MIDI OUT: %s\n", name.c_str());
1111 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1113 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1117 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1118 set_latency_range (p, false, lr);
1119 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1120 pp->set_pretty_name(_midiio->port_name(i, false));
1121 _system_midi_out.push_back(pp);
1122 _port_change_flag = true;
1126 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1127 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1129 pthread_mutex_unlock (&_process_callback_mutex);
1133 CoreAudioBackend::unregister_ports (bool system_only)
1136 _system_inputs.clear();
1137 _system_outputs.clear();
1138 _system_midi_in.clear();
1139 _system_midi_out.clear();
1140 while (i < _ports.size ()) {
1141 CoreBackendPort* port = _ports[i];
1142 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1143 port->disconnect_all ();
1145 _ports.erase (_ports.begin() + i);
1153 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1155 CoreBackendPort* src_port = find_port (src);
1156 CoreBackendPort* dst_port = find_port (dst);
1159 PBD::error << _("CoreAudioBackend::connect: Invalid Source port:")
1160 << " (" << src <<")" << endmsg;
1164 PBD::error << _("CoreAudioBackend::connect: Invalid Destination port:")
1165 << " (" << dst <<")" << endmsg;
1168 return src_port->connect (dst_port);
1172 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1174 CoreBackendPort* src_port = find_port (src);
1175 CoreBackendPort* dst_port = find_port (dst);
1177 if (!src_port || !dst_port) {
1178 PBD::error << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1181 return src_port->disconnect (dst_port);
1185 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1187 CoreBackendPort* dst_port = find_port (dst);
1188 if (!valid_port (src)) {
1189 PBD::error << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1193 PBD::error << _("CoreAudioBackend::connect: Invalid Destination Port")
1194 << " (" << dst << ")" << endmsg;
1197 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1201 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1203 CoreBackendPort* dst_port = find_port (dst);
1204 if (!valid_port (src) || !dst_port) {
1205 PBD::error << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1208 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1212 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1214 if (!valid_port (port)) {
1215 PBD::error << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1218 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1223 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1225 if (!valid_port (port)) {
1226 PBD::error << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1229 return static_cast<CoreBackendPort*>(port)->is_connected ();
1233 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1235 CoreBackendPort* dst_port = find_port (dst);
1236 if (!valid_port (src) || !dst_port) {
1237 PBD::error << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1240 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1244 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1246 if (!valid_port (port)) {
1247 PBD::error << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1250 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1254 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1256 if (!valid_port (port)) {
1257 PBD::error << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1261 assert (0 == names.size ());
1263 const std::vector<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1265 for (std::vector<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1266 names.push_back ((*i)->name ());
1269 return (int)names.size ();
1274 CoreAudioBackend::midi_event_get (
1275 pframes_t& timestamp,
1276 size_t& size, uint8_t** buf, void* port_buffer,
1277 uint32_t event_index)
1279 if (!buf || !port_buffer) return -1;
1280 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1281 if (event_index >= source.size ()) {
1284 CoreMidiEvent * const event = source[event_index].get ();
1286 timestamp = event->timestamp ();
1287 size = event->size ();
1288 *buf = event->data ();
1293 CoreAudioBackend::midi_event_put (
1295 pframes_t timestamp,
1296 const uint8_t* buffer, size_t size)
1298 if (!buffer || !port_buffer) return -1;
1299 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1300 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1302 // nevermind, ::get_buffer() sorts events
1303 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1304 (pframes_t)dst.back ()->timestamp (), timestamp);
1307 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1312 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1314 if (!port_buffer) return 0;
1315 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1319 CoreAudioBackend::midi_clear (void* port_buffer)
1321 if (!port_buffer) return;
1322 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1330 CoreAudioBackend::can_monitor_input () const
1336 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1342 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1348 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1353 /* Latency management */
1356 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1358 if (!valid_port (port)) {
1359 PBD::error << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1361 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1365 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1368 if (!valid_port (port)) {
1369 PBD::error << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1374 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1377 r = p->latency_range (for_playback);
1378 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1379 if (p->is_input() && for_playback) {
1380 r.min += _samples_per_period;
1381 r.max += _samples_per_period;
1383 if (p->is_output() && !for_playback) {
1384 r.min += _samples_per_period;
1385 r.max += _samples_per_period;
1391 /* Discovering physical ports */
1394 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1396 if (!valid_port (port)) {
1397 PBD::error << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1400 return static_cast<CoreBackendPort*>(port)->is_physical ();
1404 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1406 for (size_t i = 0; i < _ports.size (); ++i) {
1407 CoreBackendPort* port = _ports[i];
1408 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1409 port_names.push_back (port->name ());
1415 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1417 for (size_t i = 0; i < _ports.size (); ++i) {
1418 CoreBackendPort* port = _ports[i];
1419 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1420 port_names.push_back (port->name ());
1426 CoreAudioBackend::n_physical_outputs () const
1430 for (size_t i = 0; i < _ports.size (); ++i) {
1431 CoreBackendPort* port = _ports[i];
1432 if (port->is_output () && port->is_physical ()) {
1433 switch (port->type ()) {
1434 case DataType::AUDIO: ++n_audio; break;
1435 case DataType::MIDI: ++n_midi; break;
1441 cc.set (DataType::AUDIO, n_audio);
1442 cc.set (DataType::MIDI, n_midi);
1447 CoreAudioBackend::n_physical_inputs () const
1451 for (size_t i = 0; i < _ports.size (); ++i) {
1452 CoreBackendPort* port = _ports[i];
1453 if (port->is_input () && port->is_physical ()) {
1454 switch (port->type ()) {
1455 case DataType::AUDIO: ++n_audio; break;
1456 case DataType::MIDI: ++n_midi; break;
1462 cc.set (DataType::AUDIO, n_audio);
1463 cc.set (DataType::MIDI, n_midi);
1467 /* Getting access to the data buffer for a port */
1470 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1472 if (!port || !valid_port (port)) return NULL;
1473 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1477 CoreAudioBackend::pre_process ()
1479 bool connections_changed = false;
1480 bool ports_changed = false;
1481 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1482 if (_port_change_flag) {
1483 ports_changed = true;
1484 _port_change_flag = false;
1486 if (!_port_connection_queue.empty ()) {
1487 connections_changed = true;
1489 while (!_port_connection_queue.empty ()) {
1490 PortConnectData *c = _port_connection_queue.back ();
1491 manager.connect_callback (c->a, c->b, c->c);
1492 _port_connection_queue.pop_back ();
1495 pthread_mutex_unlock (&_port_callback_mutex);
1497 if (ports_changed) {
1498 manager.registration_callback();
1500 if (connections_changed) {
1501 manager.graph_order_callback();
1503 if (connections_changed || ports_changed) {
1504 engine.latency_callback(false);
1505 engine.latency_callback(true);
1510 CoreAudioBackend::freewheel_thread ()
1513 bool first_run = false;
1514 /* Freewheeling - use for export. The first call to
1515 * engine.process_callback() after engine.freewheel_callback will
1516 * if the first export cycle.
1517 * For reliable precise export timing, the calls need to be in sync.
1519 * Furthermore we need to make sure the registered process thread
1522 * _freewheeling = GUI thread state as set by ::freewheel()
1523 * _freewheel = in sync here (export thread)
1525 pthread_mutex_lock (&_freewheel_mutex);
1527 // check if we should run,
1528 if (_freewheeling != _freewheel) {
1529 if (!_freewheeling) {
1530 // prepare leaving freewheeling mode
1531 _freewheel = false; // first mark as disabled
1532 _reinit_thread_callback = true; // hand over _main_thread
1533 _freewheel_ack = false; // prepare next handshake
1534 _midiio->set_enabled(true);
1541 if (!_freewheel || !_freewheel_ack) {
1542 // wait for a change, we use a timed wait to
1543 // terminate early in case some error sets _run = 0
1546 gettimeofday (&tv, NULL);
1547 ts.tv_sec = tv.tv_sec + 3;
1549 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1554 // tell the engine we're ready to GO.
1555 engine.freewheel_callback (_freewheeling);
1557 _main_thread = pthread_self();
1558 AudioEngine::thread_init_callback (this);
1559 _midiio->set_enabled(false);
1562 // process port updates first in every cycle.
1565 // prevent coreaudio device changes
1566 pthread_mutex_lock (&_process_callback_mutex);
1570 // clear input buffers
1571 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1572 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1574 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1575 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1578 _last_process_start = 0;
1579 if (engine.process_callback (_samples_per_period)) {
1580 pthread_mutex_unlock (&_process_callback_mutex);
1584 pthread_mutex_unlock (&_process_callback_mutex);
1586 Glib::usleep (100); // don't hog cpu
1589 pthread_mutex_unlock (&_freewheel_mutex);
1594 // engine.process_callback() returner error
1595 engine.halted_callback("CoreAudio Freehweeling aborted.");
1600 #ifdef USE_MIDI_PARSER
1602 CoreAudioBackend::midi_process_byte (const uint8_t byte)
1610 midi_prepare_byte_event (byte);
1615 if (_status_byte == 0xf0) {
1616 midi_record_byte (byte);
1617 return midi_prepare_buffered_event ();
1620 _unbuffered_bytes = 0;
1621 _expected_bytes = 0;
1626 // Non-realtime status byte
1629 _unbuffered_bytes = 0;
1631 _status_byte = byte;
1632 switch (byte & 0xf0) {
1638 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
1639 _expected_bytes = 3;
1643 // Program Change, Channel Pressure
1644 _expected_bytes = 2;
1650 _expected_bytes = 0;
1654 // MTC Quarter Frame, Song Select
1655 _expected_bytes = 2;
1659 _expected_bytes = 3;
1664 _expected_bytes = 0;
1669 midi_prepare_byte_event (byte);
1670 _expected_bytes = 0;
1675 midi_record_byte (byte);
1679 if (! _status_byte) {
1680 // Data bytes without a status will be discarded.
1682 _unbuffered_bytes++;
1685 if (! _total_bytes) {
1686 midi_record_byte (_status_byte);
1688 midi_record_byte(byte);
1689 return (_total_bytes == _expected_bytes) ? midi_prepare_buffered_event() : false;
1695 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1698 uint64_t clock1, clock2;
1702 if (_run && _freewheel && !_freewheel_ack) {
1703 // acknowledge freewheeling; hand-over thread ID
1704 pthread_mutex_lock (&_freewheel_mutex);
1705 if (_freewheel) _freewheel_ack = true;
1706 pthread_cond_signal (&_freewheel_signal);
1707 pthread_mutex_unlock (&_freewheel_mutex);
1710 if (!_run || _freewheel || _preinit) {
1711 // NB if we return 1, the output is
1712 // zeroed by the coreaudio callback
1716 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1717 _reinit_thread_callback = false;
1718 _main_thread = pthread_self();
1719 AudioEngine::thread_init_callback (this);
1722 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1723 // block while devices are added/removed
1725 printf("Xrun due to device change\n");
1730 /* port-connection change */
1733 // cycle-length in usec
1734 const double nominal_time = 1e6 * n_samples / _samplerate;
1736 clock1 = g_get_monotonic_time();
1740 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1741 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>((*it)->get_buffer(0));
1744 uint8_t data[128]; // matches CoreMidi's MIDIPacket
1745 size_t size = sizeof(data);
1746 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1747 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1748 assert (time < n_samples);
1749 #ifndef USE_MIDI_PARSER
1750 midi_event_put((void*)mbuf, time, data, size);
1752 assert (size < 128);// coremidi limit per packet
1753 bool first_time = true; // this would need to be rememberd per port.
1754 for (size_t mb = 0; mb < size; ++mb) {
1755 if (first_time && !(data[mb] & 0x80)) {
1756 /* expect a status byte at the beginning or every Packet.
1758 * This parser drops messages spanning multiple packets
1759 * (sysex > 127 bytes).
1760 * see also libs/backends/alsa/alsa_rawmidi.cc
1761 * which implements a complete parser per port without this limit.
1767 if (midi_process_byte (data[mb])) {
1768 midi_event_put ((void*)mbuf, time, _parser_buffer, _parser_bytes);
1772 size = sizeof(data);
1778 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1779 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1782 /* clear output buffers */
1783 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1784 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1787 _midiio->start_cycle();
1788 _last_process_start = host_time;
1790 if (engine.process_callback (n_samples)) {
1791 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1792 //_pcmio->pcm_stop ();
1794 pthread_mutex_unlock (&_process_callback_mutex);
1799 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1800 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1803 /* queue outgoing midi */
1805 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1806 #if 0 // something's still b0rked with CoreMidiIo::send_events()
1807 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1808 _midiio->send_events (i, nominal_time, (void*)src);
1810 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1811 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1812 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1817 /* write back audio */
1819 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1820 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1823 _processed_samples += n_samples;
1825 /* calc DSP load. */
1826 clock2 = g_get_monotonic_time();
1827 const int64_t elapsed_time = clock2 - clock1;
1829 const float load = elapsed_time / (float) nominal_time;
1830 if (load > _dsp_load) {
1833 const float a = .2 * _samples_per_period / _samplerate;
1834 _dsp_load = _dsp_load + a * (load - _dsp_load) + 1e-12;
1837 pthread_mutex_unlock (&_process_callback_mutex);
1842 CoreAudioBackend::error_callback ()
1844 _pcmio->set_error_callback (NULL, NULL);
1845 _pcmio->set_sample_rate_callback (NULL, NULL);
1846 _pcmio->set_xrun_callback (NULL, NULL);
1847 _midiio->set_port_changed_callback(NULL, NULL);
1848 engine.halted_callback("CoreAudio Process aborted.");
1853 CoreAudioBackend::xrun_callback ()
1859 CoreAudioBackend::buffer_size_callback ()
1861 uint32_t bs = _pcmio->samples_per_period();
1862 if (bs == _samples_per_period) {
1865 _samples_per_period = bs;
1866 engine.buffer_size_change (_samples_per_period);
1870 CoreAudioBackend::sample_rate_callback ()
1874 printf("Samplerate change during initialization.\n");
1878 _pcmio->set_error_callback (NULL, NULL);
1879 _pcmio->set_sample_rate_callback (NULL, NULL);
1880 _pcmio->set_xrun_callback (NULL, NULL);
1881 _midiio->set_port_changed_callback(NULL, NULL);
1882 engine.halted_callback("Sample Rate Changed.");
1887 CoreAudioBackend::hw_changed_callback ()
1889 _reinit_thread_callback = true;
1890 engine.request_device_list_update();
1893 /******************************************************************************/
1895 static boost::shared_ptr<CoreAudioBackend> _instance;
1897 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1898 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1899 static int deinstantiate ();
1900 static bool already_configured ();
1901 static bool available ();
1903 static ARDOUR::AudioBackendInfo _descriptor = {
1912 static boost::shared_ptr<AudioBackend>
1913 backend_factory (AudioEngine& e)
1916 _instance.reset (new CoreAudioBackend (e, _descriptor));
1922 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1924 s_instance_name = arg1;
1936 already_configured ()
1947 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1949 return &_descriptor;
1953 /******************************************************************************/
1954 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1959 _capture_latency_range.min = 0;
1960 _capture_latency_range.max = 0;
1961 _playback_latency_range.min = 0;
1962 _playback_latency_range.max = 0;
1965 CoreBackendPort::~CoreBackendPort () {
1970 int CoreBackendPort::connect (CoreBackendPort *port)
1973 PBD::error << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
1977 if (type () != port->type ()) {
1978 PBD::error << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
1982 if (is_output () && port->is_output ()) {
1983 PBD::error << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
1987 if (is_input () && port->is_input ()) {
1988 PBD::error << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
1993 PBD::error << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
1997 if (is_connected (port)) {
1998 #if 0 // don't bother to warn about this for now. just ignore it
1999 PBD::error << _("CoreBackendPort::connect (): ports are already connected:")
2000 << " (" << name () << ") -> (" << port->name () << ")"
2006 _connect (port, true);
2011 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
2013 _connections.push_back (port);
2015 port->_connect (this, false);
2016 _osx_backend.port_connect_callback (name(), port->name(), true);
2020 int CoreBackendPort::disconnect (CoreBackendPort *port)
2023 PBD::error << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
2027 if (!is_connected (port)) {
2028 PBD::error << _("CoreBackendPort::disconnect (): ports are not connected:")
2029 << " (" << name () << ") -> (" << port->name () << ")"
2033 _disconnect (port, true);
2037 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2039 std::vector<CoreBackendPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
2041 assert (it != _connections.end ());
2043 _connections.erase (it);
2046 port->_disconnect (this, false);
2047 _osx_backend.port_connect_callback (name(), port->name(), false);
2052 void CoreBackendPort::disconnect_all ()
2054 while (!_connections.empty ()) {
2055 _connections.back ()->_disconnect (this, false);
2056 _osx_backend.port_connect_callback (name(), _connections.back ()->name(), false);
2057 _connections.pop_back ();
2062 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2064 return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
2067 bool CoreBackendPort::is_physically_connected () const
2069 for (std::vector<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2070 if ((*it)->is_physical ()) {
2077 /******************************************************************************/
2079 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2080 : CoreBackendPort (b, name, flags)
2082 memset (_buffer, 0, sizeof (_buffer));
2083 mlock(_buffer, sizeof (_buffer));
2086 CoreAudioPort::~CoreAudioPort () { }
2088 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2091 std::vector<CoreBackendPort*>::const_iterator it = get_connections ().begin ();
2092 if (it == get_connections ().end ()) {
2093 memset (_buffer, 0, n_samples * sizeof (Sample));
2095 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2096 assert (source && source->is_output ());
2097 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2098 while (++it != get_connections ().end ()) {
2099 source = static_cast<const CoreAudioPort*>(*it);
2100 assert (source && source->is_output ());
2101 Sample* dst = buffer ();
2102 const Sample* src = source->const_buffer ();
2103 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2113 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2114 : CoreBackendPort (b, name, flags)
2118 _buffer[0].clear ();
2119 _buffer[1].clear ();
2122 CoreMidiPort::~CoreMidiPort () { }
2124 struct MidiEventSorter {
2125 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
2130 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2133 (_buffer[_bufperiod]).clear ();
2134 for (std::vector<CoreBackendPort*>::const_iterator i = get_connections ().begin ();
2135 i != get_connections ().end ();
2137 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2138 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2139 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
2142 std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2144 return &(_buffer[_bufperiod]);
2147 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2149 , _timestamp (timestamp)
2153 _data = (uint8_t*) malloc (size);
2154 memcpy (_data, data, size);
2158 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2159 : _size (other.size ())
2160 , _timestamp (other.timestamp ())
2163 if (other.size () && other.const_data ()) {
2164 _data = (uint8_t*) malloc (other.size ());
2165 memcpy (_data, other.const_data (), other.size ());
2169 CoreMidiEvent::~CoreMidiEvent () {