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(get_standard_device_name(DeviceNone))
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)
108 _instance_name = s_instance_name;
109 pthread_mutex_init (&_port_callback_mutex, 0);
110 pthread_mutex_init (&_process_callback_mutex, 0);
111 pthread_mutex_init (&_freewheel_mutex, 0);
112 pthread_cond_init (&_freewheel_signal, 0);
114 _pcmio = new CoreAudioPCM ();
115 _midiio = new CoreMidiIo ();
117 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
121 CoreAudioBackend::~CoreAudioBackend ()
123 delete _pcmio; _pcmio = 0;
124 delete _midiio; _midiio = 0;
125 pthread_mutex_destroy (&_port_callback_mutex);
126 pthread_mutex_destroy (&_process_callback_mutex);
127 pthread_mutex_destroy (&_freewheel_mutex);
128 pthread_cond_destroy (&_freewheel_signal);
131 /* AUDIOBACKEND API */
134 CoreAudioBackend::name () const
136 return X_("CoreAudio");
140 CoreAudioBackend::is_realtime () const
145 std::vector<AudioBackend::DeviceStatus>
146 CoreAudioBackend::enumerate_devices () const
148 _duplex_audio_device_status.clear();
149 std::map<size_t, std::string> devices;
150 _pcmio->duplex_device_list(devices);
152 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
153 if (_input_audio_device == "") _input_audio_device = i->second;
154 if (_output_audio_device == "") _output_audio_device = i->second;
155 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
157 return _duplex_audio_device_status;
160 std::vector<AudioBackend::DeviceStatus>
161 CoreAudioBackend::enumerate_input_devices () const
163 _input_audio_device_status.clear();
164 std::map<size_t, std::string> devices;
165 _pcmio->input_device_list(devices);
167 _input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
168 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
169 if (_input_audio_device == "") _input_audio_device = i->second;
170 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
172 return _input_audio_device_status;
176 std::vector<AudioBackend::DeviceStatus>
177 CoreAudioBackend::enumerate_output_devices () const
179 _output_audio_device_status.clear();
180 std::map<size_t, std::string> devices;
181 _pcmio->output_device_list(devices);
183 _output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
184 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
185 if (_output_audio_device == "") _output_audio_device = i->second;
186 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
188 return _output_audio_device_status;
192 CoreAudioBackend::available_sample_rates (const std::string& device) const
194 std::vector<float> sr;
195 _pcmio->available_sample_rates (name_to_id (device), sr);
200 CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) 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_device);
207 const uint32_t out = name_to_id (output_device);
209 if (inp == UINT32_MAX && out == UINT32_MAX) {
211 } else if (inp == UINT32_MAX) {
212 _pcmio->available_sample_rates (out, sr_out);
214 } else if (out == UINT32_MAX) {
215 _pcmio->available_sample_rates (inp, sr_in);
218 _pcmio->available_sample_rates (inp, sr_in);
219 _pcmio->available_sample_rates (out, sr_out);
220 // TODO allow to use different SR per device, tweak aggregate
221 std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
226 std::vector<uint32_t>
227 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
229 std::vector<uint32_t> bs;
230 _pcmio->available_buffer_sizes (name_to_id (device), bs);
234 std::vector<uint32_t>
235 CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) const
237 std::vector<uint32_t> bs;
238 std::vector<uint32_t> bs_in;
239 std::vector<uint32_t> bs_out;
240 const uint32_t inp = name_to_id (input_device);
241 const uint32_t out = name_to_id (output_device);
242 if (inp == UINT32_MAX && out == UINT32_MAX) {
244 } else if (inp == UINT32_MAX) {
245 _pcmio->available_buffer_sizes (out, bs_out);
247 } else if (out == UINT32_MAX) {
248 _pcmio->available_buffer_sizes (inp, bs_in);
251 _pcmio->available_buffer_sizes (inp, bs_in);
252 _pcmio->available_buffer_sizes (out, bs_out);
253 std::set_intersection (bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
259 CoreAudioBackend::available_input_channel_count (const std::string&) const
261 return 128; // TODO query current device
265 CoreAudioBackend::available_output_channel_count (const std::string&) const
267 return 128; // TODO query current device
271 CoreAudioBackend::can_change_sample_rate_when_running () const
277 CoreAudioBackend::can_change_buffer_size_when_running () const
283 CoreAudioBackend::set_device_name (const std::string& d)
286 rv |= set_input_device_name (d);
287 rv |= set_output_device_name (d);
292 CoreAudioBackend::set_input_device_name (const std::string& d)
294 _input_audio_device = d;
295 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device));
296 if (sr > 0) { set_sample_rate(sr); }
301 CoreAudioBackend::set_output_device_name (const std::string& d)
303 _output_audio_device = d;
305 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device));
306 if (sr > 0) { set_sample_rate(sr); }
311 CoreAudioBackend::set_sample_rate (float sr)
313 std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_audio_device);
314 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
318 engine.sample_rate_change (sr);
323 CoreAudioBackend::set_buffer_size (uint32_t bs)
325 if (bs <= 0 || bs >= _max_buffer_size) {
328 _samples_per_period = bs;
329 _pcmio->set_samples_per_period(bs);
330 engine.buffer_size_change (bs);
335 CoreAudioBackend::set_interleaved (bool yn)
337 if (!yn) { return 0; }
342 CoreAudioBackend::set_input_channels (uint32_t cc)
349 CoreAudioBackend::set_output_channels (uint32_t cc)
356 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
358 _systemic_audio_input_latency = sl;
363 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
365 _systemic_audio_output_latency = sl;
369 /* Retrieving parameters */
371 CoreAudioBackend::device_name () const
377 CoreAudioBackend::input_device_name () const
379 return _input_audio_device;
383 CoreAudioBackend::output_device_name () const
385 return _output_audio_device;
389 CoreAudioBackend::sample_rate () const
395 CoreAudioBackend::buffer_size () const
397 return _samples_per_period;
401 CoreAudioBackend::interleaved () const
407 CoreAudioBackend::input_channels () const
413 CoreAudioBackend::output_channels () const
419 CoreAudioBackend::systemic_input_latency () const
421 return _systemic_audio_input_latency;
425 CoreAudioBackend::systemic_output_latency () const
427 return _systemic_audio_output_latency;
432 std::vector<std::string>
433 CoreAudioBackend::enumerate_midi_options () const
435 if (_midi_options.empty()) {
436 _midi_options.push_back (_("CoreMidi"));
437 _midi_options.push_back (get_standard_device_name(DeviceNone));
439 return _midi_options;
443 CoreAudioBackend::set_midi_option (const std::string& opt)
445 if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
448 _midi_driver_option = opt;
453 CoreAudioBackend::midi_option () const
455 return _midi_driver_option;
459 CoreAudioBackend::launch_control_app ()
461 if (name_to_id (_input_audio_device) != UINT32_MAX) {
462 _pcmio->launch_control_app(name_to_id(_input_audio_device));
464 if (name_to_id (_output_audio_device) != UINT32_MAX) {
465 _pcmio->launch_control_app(name_to_id(_output_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 AudioBackend::ErrorCode error_code = NoError;
490 if ((!_active_ca || !_active_fw) && _run) {
491 // recover from 'halted', reap threads
495 if (_active_ca || _active_fw || _run) {
496 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
497 return BackendReinitializationError;
501 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
502 _system_inputs.clear();
503 _system_outputs.clear();
504 _system_midi_in.clear();
505 _system_midi_out.clear();
509 uint32_t device1 = name_to_id(_input_audio_device);
510 uint32_t device2 = name_to_id(_output_audio_device);
512 assert(_active_ca == false);
513 assert(_active_fw == false);
515 _freewheel_ack = false;
516 _reinit_thread_callback = true;
517 _last_process_start = 0;
519 _pcmio->set_error_callback (error_callback_ptr, this);
520 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
521 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
523 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
525 printf("STATE: %d\n", _pcmio->state ());
527 switch (_pcmio->state ()) {
531 PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
532 error_code = AudioDeviceInvalidError;
535 PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
536 error_code = AudioDeviceNotAvailableError;
539 PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
540 error_code = AudioDeviceOpenError;
543 PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
544 error_code = SampleRateNotSupportedError;
547 PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
548 error_code = PeriodSizeNotSupportedError;
551 PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
552 error_code = SampleFormatNotSupportedError;
555 PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
556 error_code = BackendInitializationError; // XXX
559 PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
560 error_code = OutOfMemoryError;
563 PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
564 error_code = BackendInitializationError; // XXX
567 PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
568 error_code = AudioDeviceIOError;
571 PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
572 error_code = PeriodSizeNotSupportedError;
575 PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
576 error_code = DeviceConfigurationNotSupportedError;
579 PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
580 error_code = BackendInitializationError;
583 if (_pcmio->state ()) {
587 if (_n_outputs != _pcmio->n_playback_channels ()) {
588 if (_n_outputs == 0) {
589 _n_outputs = _pcmio->n_playback_channels ();
591 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
593 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
596 if (_n_inputs != _pcmio->n_capture_channels ()) {
597 if (_n_inputs == 0) {
598 _n_inputs = _pcmio->n_capture_channels ();
600 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
602 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
605 if (_pcmio->samples_per_period() != _samples_per_period) {
606 _samples_per_period = _pcmio->samples_per_period();
607 PBD::warning << _("CoreAudioBackend: samples per period does not match.") << endmsg;
610 if (_pcmio->sample_rate() != _samplerate) {
611 _samplerate = _pcmio->sample_rate();
612 engine.sample_rate_change (_samplerate);
613 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
616 _measure_latency = for_latency_measurement;
620 _port_change_flag = false;
622 if (_midi_driver_option == _("CoreMidi")) {
623 _midiio->set_enabled(true);
624 _midiio->set_port_changed_callback(midi_port_change, this);
625 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
628 if (register_system_audio_ports()) {
629 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
631 return PortRegistrationError;
634 engine.sample_rate_change (_samplerate);
635 engine.buffer_size_change (_samples_per_period);
637 if (engine.reestablish_ports ()) {
638 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
640 return PortReconnectError;
643 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
645 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
646 delete _pcmio; _pcmio = 0;
648 return ProcessThreadStartError;
652 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
655 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
659 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
665 return FreewheelThreadStartError;
669 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
672 return ProcessThreadStartError;
675 engine.reconnect_ports ();
677 // force an initial registration_callback() & latency re-compute
678 _port_change_flag = true;
682 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
689 CoreAudioBackend::stop ()
698 _midiio->set_port_changed_callback(NULL, NULL);
701 pthread_mutex_lock (&_freewheel_mutex);
702 pthread_cond_signal (&_freewheel_signal);
703 pthread_mutex_unlock (&_freewheel_mutex);
705 if (pthread_join (_freeewheel_thread, &status)) {
706 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
713 _active_fw = false; // ??
719 CoreAudioBackend::freewheel (bool onoff)
721 if (onoff == _freewheeling) {
724 _freewheeling = onoff;
725 // wake up freewheeling thread
726 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
727 pthread_cond_signal (&_freewheel_signal);
728 pthread_mutex_unlock (&_freewheel_mutex);
734 CoreAudioBackend::dsp_load () const
736 return 100.f * _dsp_load;
740 CoreAudioBackend::raw_buffer_size (DataType t)
743 case DataType::AUDIO:
744 return _samples_per_period * sizeof(Sample);
746 return _max_buffer_size; // XXX not really limited
753 CoreAudioBackend::sample_time ()
755 return _processed_samples;
759 CoreAudioBackend::sample_time_at_cycle_start ()
761 return _processed_samples;
765 CoreAudioBackend::samples_since_cycle_start ()
767 if (!_active_ca || !_run || _freewheeling || _freewheel) {
770 if (_last_process_start == 0) {
774 const uint64_t now = AudioGetCurrentHostTime ();
775 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
776 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
780 CoreAudioBackend::name_to_id(std::string device_name) const {
781 uint32_t device_id = UINT32_MAX;
782 std::map<size_t, std::string> devices;
783 _pcmio->device_list(devices);
785 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
786 if (i->second == device_name) {
787 device_id = i->first;
795 CoreAudioBackend::coreaudio_process_thread (void *arg)
797 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
798 boost::function<void ()> f = td->f;
805 CoreAudioBackend::create_process_thread (boost::function<void()> func)
809 size_t stacksize = 100000;
811 ThreadData* td = new ThreadData (this, func, stacksize);
813 if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
814 &thread_id, coreaudio_process_thread, td)) {
815 pthread_attr_init (&attr);
816 pthread_attr_setstacksize (&attr, stacksize);
817 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
818 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
819 pthread_attr_destroy (&attr);
822 pthread_attr_destroy (&attr);
825 _threads.push_back (thread_id);
830 CoreAudioBackend::join_process_threads ()
834 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
837 if (pthread_join (*i, &status)) {
838 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
847 CoreAudioBackend::in_process_thread ()
849 if (pthread_equal (_main_thread, pthread_self()) != 0) {
853 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
855 if (pthread_equal (*i, pthread_self ()) != 0) {
863 CoreAudioBackend::process_thread_count ()
865 return _threads.size ();
869 CoreAudioBackend::update_latencies ()
871 // trigger latency callback in RT thread (locked graph)
872 port_connect_add_remove_callback();
878 CoreAudioBackend::private_handle () const
884 CoreAudioBackend::my_name () const
886 return _instance_name;
890 CoreAudioBackend::available () const
892 return _run && _active_fw && _active_ca;
896 CoreAudioBackend::port_name_size () const
902 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
904 if (!valid_port (port)) {
905 PBD::warning << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
908 return static_cast<CoreBackendPort*>(port)->set_name (_instance_name + ":" + name);
912 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
914 if (!valid_port (port)) {
915 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
916 return std::string ();
918 return static_cast<CoreBackendPort*>(port)->name ();
922 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
924 if (!valid_port (port)) {
925 PBD::warning << _("CoreAudioBackend::get_port_property: Invalid Port(s)") << endmsg;
928 if (key == "http://jackaudio.org/metadata/pretty-name") {
930 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
931 if (!value.empty()) {
939 CoreAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
941 if (!valid_port (port)) {
942 PBD::warning << _("CoreAudioBackend::set_port_property: Invalid Port(s)") << endmsg;
945 if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
946 static_cast<CoreBackendPort*>(port)->set_pretty_name (value);
952 PortEngine::PortHandle
953 CoreAudioBackend::get_port_by_name (const std::string& name) const
955 PortHandle port = (PortHandle) find_port (name);
960 CoreAudioBackend::get_ports (
961 const std::string& port_name_pattern,
962 DataType type, PortFlags flags,
963 std::vector<std::string>& port_names) const
967 bool use_regexp = false;
968 if (port_name_pattern.size () > 0) {
969 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
973 for (size_t i = 0; i < _ports.size (); ++i) {
974 CoreBackendPort* port = _ports[i];
975 if ((port->type () == type) && flags == (port->flags () & flags)) {
976 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
977 port_names.push_back (port->name ());
983 regfree (&port_regex);
989 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
991 if (!valid_port (port)) {
992 return DataType::NIL;
994 return static_cast<CoreBackendPort*>(port)->type ();
997 PortEngine::PortHandle
998 CoreAudioBackend::register_port (
999 const std::string& name,
1000 ARDOUR::DataType type,
1001 ARDOUR::PortFlags flags)
1003 if (name.size () == 0) { return 0; }
1004 if (flags & IsPhysical) { return 0; }
1005 return add_port (_instance_name + ":" + name, type, flags);
1008 PortEngine::PortHandle
1009 CoreAudioBackend::add_port (
1010 const std::string& name,
1011 ARDOUR::DataType type,
1012 ARDOUR::PortFlags flags)
1014 assert(name.size ());
1015 if (find_port (name)) {
1016 PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
1017 << " (" << name << ")" << endmsg;
1020 CoreBackendPort* port = NULL;
1022 case DataType::AUDIO:
1023 port = new CoreAudioPort (*this, name, flags);
1025 case DataType::MIDI:
1026 port = new CoreMidiPort (*this, name, flags);
1029 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
1033 _ports.push_back (port);
1039 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
1044 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
1045 std::vector<CoreBackendPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<CoreBackendPort*>(port_handle));
1046 if (i == _ports.end ()) {
1047 PBD::warning << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
1050 disconnect_all(port_handle);
1056 CoreAudioBackend::register_system_audio_ports()
1060 const uint32_t a_ins = _n_inputs;
1061 const uint32_t a_out = _n_outputs;
1063 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device), true);
1064 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device), false);
1067 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1068 coreaudio_reported_input_latency,
1069 coreaudio_reported_output_latency);
1073 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1074 for (uint32_t i = 0; i < a_ins; ++i) {
1076 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1077 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1079 set_latency_range (p, false, lr);
1080 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1081 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1082 _system_inputs.push_back(cp);
1085 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1086 for (uint32_t i = 0; i < a_out; ++i) {
1088 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1089 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1091 set_latency_range (p, true, lr);
1092 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1093 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1094 _system_outputs.push_back(cp);
1100 CoreAudioBackend::coremidi_rediscover()
1102 if (!_run) { return; }
1103 assert(_midi_driver_option == _("CoreMidi"));
1105 pthread_mutex_lock (&_process_callback_mutex);
1107 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1109 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1110 if ((*it)->name() == _midiio->port_id(i, false)) {
1119 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1121 _port_change_flag = true;
1122 unregister_port((*it));
1123 it = _system_midi_out.erase(it);
1127 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1129 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1130 if ((*it)->name() == _midiio->port_id(i, true)) {
1139 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1141 _port_change_flag = true;
1142 unregister_port((*it));
1143 it = _system_midi_in.erase(it);
1147 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1148 std::string name = _midiio->port_id(i, true);
1149 if (find_port_in(_system_midi_in, name)) {
1154 printf("register MIDI Input: %s\n", name.c_str());
1156 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1158 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1162 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1163 set_latency_range (p, false, lr);
1164 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1165 pp->set_pretty_name(_midiio->port_name(i, true));
1166 _system_midi_in.push_back(pp);
1167 _port_change_flag = true;
1170 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1171 std::string name = _midiio->port_id(i, false);
1172 if (find_port_in(_system_midi_out, name)) {
1177 printf("register MIDI OUT: %s\n", name.c_str());
1179 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1181 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1185 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1186 set_latency_range (p, false, lr);
1187 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1188 pp->set_pretty_name(_midiio->port_name(i, false));
1189 _system_midi_out.push_back(pp);
1190 _port_change_flag = true;
1194 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1195 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1197 pthread_mutex_unlock (&_process_callback_mutex);
1201 CoreAudioBackend::unregister_ports (bool system_only)
1204 _system_inputs.clear();
1205 _system_outputs.clear();
1206 _system_midi_in.clear();
1207 _system_midi_out.clear();
1208 while (i < _ports.size ()) {
1209 CoreBackendPort* port = _ports[i];
1210 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1211 port->disconnect_all ();
1213 _ports.erase (_ports.begin() + i);
1221 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1223 CoreBackendPort* src_port = find_port (src);
1224 CoreBackendPort* dst_port = find_port (dst);
1227 PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
1228 << " (" << src <<")" << endmsg;
1232 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
1233 << " (" << dst <<")" << endmsg;
1236 return src_port->connect (dst_port);
1240 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1242 CoreBackendPort* src_port = find_port (src);
1243 CoreBackendPort* dst_port = find_port (dst);
1245 if (!src_port || !dst_port) {
1246 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1249 return src_port->disconnect (dst_port);
1253 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1255 CoreBackendPort* dst_port = find_port (dst);
1256 if (!valid_port (src)) {
1257 PBD::warning << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1261 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
1262 << " (" << dst << ")" << endmsg;
1265 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1269 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1271 CoreBackendPort* dst_port = find_port (dst);
1272 if (!valid_port (src) || !dst_port) {
1273 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1276 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1280 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1282 if (!valid_port (port)) {
1283 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1286 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1291 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1293 if (!valid_port (port)) {
1294 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1297 return static_cast<CoreBackendPort*>(port)->is_connected ();
1301 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1303 CoreBackendPort* dst_port = find_port (dst);
1304 if (!valid_port (src) || !dst_port) {
1305 PBD::warning << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1308 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1312 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1314 if (!valid_port (port)) {
1315 PBD::warning << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1318 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1322 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1324 if (!valid_port (port)) {
1325 PBD::warning << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1329 assert (0 == names.size ());
1331 const std::vector<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1333 for (std::vector<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1334 names.push_back ((*i)->name ());
1337 return (int)names.size ();
1342 CoreAudioBackend::midi_event_get (
1343 pframes_t& timestamp,
1344 size_t& size, uint8_t** buf, void* port_buffer,
1345 uint32_t event_index)
1347 if (!buf || !port_buffer) return -1;
1348 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1349 if (event_index >= source.size ()) {
1352 CoreMidiEvent * const event = source[event_index].get ();
1354 timestamp = event->timestamp ();
1355 size = event->size ();
1356 *buf = event->data ();
1361 CoreAudioBackend::_midi_event_put (
1363 pframes_t timestamp,
1364 const uint8_t* buffer, size_t size)
1366 if (!buffer || !port_buffer) return -1;
1367 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1368 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1370 // nevermind, ::get_buffer() sorts events
1371 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1372 (pframes_t)dst.back ()->timestamp (), timestamp);
1375 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1381 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1383 if (!port_buffer) return 0;
1384 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1388 CoreAudioBackend::midi_clear (void* port_buffer)
1390 if (!port_buffer) return;
1391 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1399 CoreAudioBackend::can_monitor_input () const
1405 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1411 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1417 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1422 /* Latency management */
1425 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1427 if (!valid_port (port)) {
1428 PBD::warning << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1431 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1435 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1438 if (!valid_port (port)) {
1439 PBD::warning << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1444 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1447 r = p->latency_range (for_playback);
1448 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1449 if (p->is_input() && for_playback) {
1450 r.min += _samples_per_period;
1451 r.max += _samples_per_period;
1453 if (p->is_output() && !for_playback) {
1454 r.min += _samples_per_period;
1455 r.max += _samples_per_period;
1461 /* Discovering physical ports */
1464 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1466 if (!valid_port (port)) {
1467 PBD::warning << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1470 return static_cast<CoreBackendPort*>(port)->is_physical ();
1474 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1476 for (size_t i = 0; i < _ports.size (); ++i) {
1477 CoreBackendPort* port = _ports[i];
1478 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1479 port_names.push_back (port->name ());
1485 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1487 for (size_t i = 0; i < _ports.size (); ++i) {
1488 CoreBackendPort* port = _ports[i];
1489 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1490 port_names.push_back (port->name ());
1496 CoreAudioBackend::n_physical_outputs () const
1500 for (size_t i = 0; i < _ports.size (); ++i) {
1501 CoreBackendPort* port = _ports[i];
1502 if (port->is_output () && port->is_physical ()) {
1503 switch (port->type ()) {
1504 case DataType::AUDIO: ++n_audio; break;
1505 case DataType::MIDI: ++n_midi; break;
1511 cc.set (DataType::AUDIO, n_audio);
1512 cc.set (DataType::MIDI, n_midi);
1517 CoreAudioBackend::n_physical_inputs () const
1521 for (size_t i = 0; i < _ports.size (); ++i) {
1522 CoreBackendPort* port = _ports[i];
1523 if (port->is_input () && port->is_physical ()) {
1524 switch (port->type ()) {
1525 case DataType::AUDIO: ++n_audio; break;
1526 case DataType::MIDI: ++n_midi; break;
1532 cc.set (DataType::AUDIO, n_audio);
1533 cc.set (DataType::MIDI, n_midi);
1537 /* Getting access to the data buffer for a port */
1540 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1542 if (!port || !valid_port (port)) return NULL;
1543 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1547 CoreAudioBackend::pre_process ()
1549 bool connections_changed = false;
1550 bool ports_changed = false;
1551 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1552 if (_port_change_flag) {
1553 ports_changed = true;
1554 _port_change_flag = false;
1556 if (!_port_connection_queue.empty ()) {
1557 connections_changed = true;
1559 while (!_port_connection_queue.empty ()) {
1560 PortConnectData *c = _port_connection_queue.back ();
1561 manager.connect_callback (c->a, c->b, c->c);
1562 _port_connection_queue.pop_back ();
1565 pthread_mutex_unlock (&_port_callback_mutex);
1567 if (ports_changed) {
1568 manager.registration_callback();
1570 if (connections_changed) {
1571 manager.graph_order_callback();
1573 if (connections_changed || ports_changed) {
1574 engine.latency_callback(false);
1575 engine.latency_callback(true);
1580 CoreAudioBackend::reset_midi_parsers ()
1582 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1583 CoreMidiPort* port = dynamic_cast<CoreMidiPort*>(*it);
1585 port->reset_parser ();
1591 CoreAudioBackend::freewheel_thread ()
1594 bool first_run = false;
1595 /* Freewheeling - use for export. The first call to
1596 * engine.process_callback() after engine.freewheel_callback will
1597 * if the first export cycle.
1598 * For reliable precise export timing, the calls need to be in sync.
1600 * Furthermore we need to make sure the registered process thread
1603 * _freewheeling = GUI thread state as set by ::freewheel()
1604 * _freewheel = in sync here (export thread)
1606 pthread_mutex_lock (&_freewheel_mutex);
1608 // check if we should run,
1609 if (_freewheeling != _freewheel) {
1610 if (!_freewheeling) {
1611 // prepare leaving freewheeling mode
1612 _freewheel = false; // first mark as disabled
1613 _reinit_thread_callback = true; // hand over _main_thread
1614 _freewheel_ack = false; // prepare next handshake
1615 reset_midi_parsers ();
1616 _midiio->set_enabled(true);
1617 engine.freewheel_callback (_freewheeling);
1624 if (!_freewheel || !_freewheel_ack) {
1625 // wait for a change, we use a timed wait to
1626 // terminate early in case some error sets _run = 0
1629 gettimeofday (&tv, NULL);
1630 ts.tv_sec = tv.tv_sec + 3;
1632 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1637 // tell the engine we're ready to GO.
1638 engine.freewheel_callback (_freewheeling);
1640 _main_thread = pthread_self();
1641 AudioEngine::thread_init_callback (this);
1642 _midiio->set_enabled(false);
1643 reset_midi_parsers ();
1646 // process port updates first in every cycle.
1649 // prevent coreaudio device changes
1650 pthread_mutex_lock (&_process_callback_mutex);
1654 // clear input buffers
1655 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1656 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1658 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1659 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1662 _last_process_start = 0;
1663 if (engine.process_callback (_samples_per_period)) {
1664 pthread_mutex_unlock (&_process_callback_mutex);
1668 pthread_mutex_unlock (&_process_callback_mutex);
1670 Glib::usleep (100); // don't hog cpu
1673 pthread_mutex_unlock (&_freewheel_mutex);
1678 // engine.process_callback() returner error
1679 engine.halted_callback("CoreAudio Freehweeling aborted.");
1684 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1691 if (_run && _freewheel && !_freewheel_ack) {
1692 // acknowledge freewheeling; hand-over thread ID
1693 pthread_mutex_lock (&_freewheel_mutex);
1694 if (_freewheel) _freewheel_ack = true;
1695 pthread_cond_signal (&_freewheel_signal);
1696 pthread_mutex_unlock (&_freewheel_mutex);
1699 if (!_run || _freewheel || _preinit) {
1700 // NB if we return 1, the output is
1701 // zeroed by the coreaudio callback
1705 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1706 _reinit_thread_callback = false;
1707 _main_thread = pthread_self();
1708 AudioEngine::thread_init_callback (this);
1711 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1712 // block while devices are added/removed
1714 printf("Xrun due to device change\n");
1719 /* port-connection change */
1722 // cycle-length in usec
1723 const double nominal_time = 1e6 * n_samples / _samplerate;
1725 clock1 = g_get_monotonic_time();
1729 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1730 CoreMidiPort* port = dynamic_cast<CoreMidiPort*> (*it);
1735 uint8_t data[128]; // matches CoreMidi's MIDIPacket
1736 size_t size = sizeof(data);
1738 port->clear_events ();
1740 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1741 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1742 assert (time < n_samples);
1743 port->parse_events (time, data, size);
1744 size = sizeof(data); /* prepare for next call to recv_event */
1750 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1751 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1754 /* clear output buffers */
1755 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1756 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1759 _midiio->start_cycle();
1760 _last_process_start = host_time;
1762 if (engine.process_callback (n_samples)) {
1763 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1764 //_pcmio->pcm_stop ();
1766 pthread_mutex_unlock (&_process_callback_mutex);
1771 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1772 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1775 /* queue outgoing midi */
1777 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1778 #if 0 // something's still b0rked with CoreMidiIo::send_events()
1779 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1780 _midiio->send_events (i, nominal_time, (void*)src);
1782 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1783 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1784 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1789 /* write back audio */
1791 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1792 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1795 _processed_samples += n_samples;
1797 /* calc DSP load. */
1798 _dsp_load_calc.set_max_time (_samplerate, _samples_per_period);
1799 _dsp_load_calc.set_start_timestamp_us (clock1);
1800 _dsp_load_calc.set_stop_timestamp_us (g_get_monotonic_time());
1801 _dsp_load = _dsp_load_calc.get_dsp_load ();
1803 pthread_mutex_unlock (&_process_callback_mutex);
1808 CoreAudioBackend::error_callback ()
1810 _pcmio->set_error_callback (NULL, NULL);
1811 _pcmio->set_sample_rate_callback (NULL, NULL);
1812 _pcmio->set_xrun_callback (NULL, NULL);
1813 _midiio->set_port_changed_callback(NULL, NULL);
1814 engine.halted_callback("CoreAudio Process aborted.");
1819 CoreAudioBackend::xrun_callback ()
1825 CoreAudioBackend::buffer_size_callback ()
1827 uint32_t bs = _pcmio->samples_per_period();
1828 if (bs == _samples_per_period) {
1831 _samples_per_period = bs;
1832 engine.buffer_size_change (_samples_per_period);
1836 CoreAudioBackend::sample_rate_callback ()
1840 printf("Samplerate change during initialization.\n");
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("Sample Rate Changed.");
1853 CoreAudioBackend::hw_changed_callback ()
1855 _reinit_thread_callback = true;
1856 engine.request_device_list_update();
1859 /******************************************************************************/
1861 static boost::shared_ptr<CoreAudioBackend> _instance;
1863 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1864 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1865 static int deinstantiate ();
1866 static bool already_configured ();
1867 static bool available ();
1869 static ARDOUR::AudioBackendInfo _descriptor = {
1878 static boost::shared_ptr<AudioBackend>
1879 backend_factory (AudioEngine& e)
1882 _instance.reset (new CoreAudioBackend (e, _descriptor));
1888 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1890 s_instance_name = arg1;
1902 already_configured ()
1913 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1915 return &_descriptor;
1919 /******************************************************************************/
1920 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1925 _capture_latency_range.min = 0;
1926 _capture_latency_range.max = 0;
1927 _playback_latency_range.min = 0;
1928 _playback_latency_range.max = 0;
1931 CoreBackendPort::~CoreBackendPort () {
1936 int CoreBackendPort::connect (CoreBackendPort *port)
1939 PBD::warning << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
1943 if (type () != port->type ()) {
1944 PBD::warning << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
1948 if (is_output () && port->is_output ()) {
1949 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
1953 if (is_input () && port->is_input ()) {
1954 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
1959 PBD::warning << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
1963 if (is_connected (port)) {
1964 #if 0 // don't bother to warn about this for now. just ignore it
1965 PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
1966 << " (" << name () << ") -> (" << port->name () << ")"
1972 _connect (port, true);
1977 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
1979 _connections.push_back (port);
1981 port->_connect (this, false);
1982 _osx_backend.port_connect_callback (name(), port->name(), true);
1986 int CoreBackendPort::disconnect (CoreBackendPort *port)
1989 PBD::warning << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
1993 if (!is_connected (port)) {
1994 PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
1995 << " (" << name () << ") -> (" << port->name () << ")"
1999 _disconnect (port, true);
2003 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2005 std::vector<CoreBackendPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
2007 assert (it != _connections.end ());
2009 _connections.erase (it);
2012 port->_disconnect (this, false);
2013 _osx_backend.port_connect_callback (name(), port->name(), false);
2018 void CoreBackendPort::disconnect_all ()
2020 while (!_connections.empty ()) {
2021 _connections.back ()->_disconnect (this, false);
2022 _osx_backend.port_connect_callback (name(), _connections.back ()->name(), false);
2023 _connections.pop_back ();
2028 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2030 return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
2033 bool CoreBackendPort::is_physically_connected () const
2035 for (std::vector<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2036 if ((*it)->is_physical ()) {
2043 /******************************************************************************/
2045 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2046 : CoreBackendPort (b, name, flags)
2048 memset (_buffer, 0, sizeof (_buffer));
2049 mlock(_buffer, sizeof (_buffer));
2052 CoreAudioPort::~CoreAudioPort () { }
2054 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2057 std::vector<CoreBackendPort*>::const_iterator it = get_connections ().begin ();
2058 if (it == get_connections ().end ()) {
2059 memset (_buffer, 0, n_samples * sizeof (Sample));
2061 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2062 assert (source && source->is_output ());
2063 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2064 while (++it != get_connections ().end ()) {
2065 source = static_cast<const CoreAudioPort*>(*it);
2066 assert (source && source->is_output ());
2067 Sample* dst = buffer ();
2068 const Sample* src = source->const_buffer ();
2069 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2079 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2080 : CoreBackendPort (b, name, flags)
2085 , _unbuffered_bytes(0)
2087 , _expected_bytes(0)
2091 _buffer[0].clear ();
2092 _buffer[1].clear ();
2095 CoreMidiPort::~CoreMidiPort () { }
2097 struct MidiEventSorter {
2098 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
2103 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2106 (_buffer[_bufperiod]).clear ();
2107 for (std::vector<CoreBackendPort*>::const_iterator i = get_connections ().begin ();
2108 i != get_connections ().end ();
2110 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2111 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2112 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
2115 std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2118 return &(_buffer[_bufperiod]);
2122 CoreMidiPort::queue_event (
2124 pframes_t timestamp,
2125 const uint8_t* buffer, size_t size)
2127 const int ret = CoreAudioBackend::_midi_event_put (port_buffer, timestamp, buffer, size);
2128 if (!ret) { /* success */
2129 _event._pending = false;
2135 CoreMidiPort::reset_parser ()
2137 _event._pending = false;
2139 _unbuffered_bytes = 0;
2141 _expected_bytes = 0;
2146 CoreMidiPort::clear_events ()
2148 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2153 CoreMidiPort::parse_events (const uint64_t time, const uint8_t *data, const size_t size)
2155 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2157 if (_event._pending) {
2158 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2163 for (size_t i = 0; i < size; ++i) {
2164 if (_first_time && !(data[i] & 0x80)) {
2168 _first_time = false;
2170 if (process_byte(time, data[i])) {
2171 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2178 // based on JackMidiRawInputWriteQueue by Devin Anderson //
2180 CoreMidiPort::process_byte(const uint64_t time, const uint8_t byte)
2187 _parser_buffer[0] = byte;
2188 prepare_byte_event(time, byte);
2193 if (_status_byte == 0xf0) {
2195 return prepare_buffered_event(time);
2198 _unbuffered_bytes = 0;
2199 _expected_bytes = 0;
2204 // Non-realtime status byte
2206 printf ("CoreMidiPort: discarded bogus midi message\n");
2208 for (size_t i=0; i < _total_bytes; ++i) {
2209 printf("%02x ", _parser_buffer[i]);
2214 _unbuffered_bytes = 0;
2216 _status_byte = byte;
2217 switch (byte & 0xf0) {
2223 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
2224 _expected_bytes = 3;
2228 // Program Change, Channel Pressure
2229 _expected_bytes = 2;
2235 _expected_bytes = 0;
2239 // MTC Quarter Frame, Song Select
2240 _expected_bytes = 2;
2244 _expected_bytes = 3;
2249 _expected_bytes = 0;
2254 prepare_byte_event(time, byte);
2255 _expected_bytes = 0;
2264 if (! _status_byte) {
2265 // Data bytes without a status will be discarded.
2267 _unbuffered_bytes++;
2270 if (! _total_bytes) {
2271 record_byte(_status_byte);
2274 return (_total_bytes == _expected_bytes) ? prepare_buffered_event(time) : false;
2278 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2280 , _timestamp (timestamp)
2284 _data = (uint8_t*) malloc (size);
2285 memcpy (_data, data, size);
2289 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2290 : _size (other.size ())
2291 , _timestamp (other.timestamp ())
2294 if (other.size () && other.const_data ()) {
2295 _data = (uint8_t*) malloc (other.size ());
2296 memcpy (_data, other.const_data (), other.size ());
2300 CoreMidiEvent::~CoreMidiEvent () {