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.
24 #include <mach/thread_policy.h>
25 #include <mach/thread_act.h>
29 #include "coreaudio_backend.h"
31 #include "pbd/compose.h"
32 #include "pbd/error.h"
33 #include "pbd/file_utils.h"
34 #include "pbd/pthread_utils.h"
35 #include "ardour/filesystem_paths.h"
36 #include "ardour/port_manager.h"
39 using namespace ARDOUR;
41 static std::string s_instance_name;
42 size_t CoreAudioBackend::_max_buffer_size = 8192;
43 std::vector<std::string> CoreAudioBackend::_midi_options;
44 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
45 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
46 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
49 /* static class instance access */
50 static void hw_changed_callback_ptr (void *arg)
52 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
53 d->hw_changed_callback();
56 static void error_callback_ptr (void *arg)
58 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
62 static void xrun_callback_ptr (void *arg)
64 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
68 static void buffer_size_callback_ptr (void *arg)
70 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
71 d->buffer_size_callback();
74 static void sample_rate_callback_ptr (void *arg)
76 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
77 d->sample_rate_callback();
80 static void midi_port_change (void *arg)
82 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
83 d->coremidi_rediscover ();
87 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
88 : AudioBackend (e, info)
92 , _freewheeling (false)
94 , _freewheel_ack (false)
95 , _reinit_thread_callback (false)
96 , _measure_latency (false)
97 , _last_process_start (0)
98 , _input_audio_device("")
99 , _output_audio_device("")
100 , _midi_driver_option(get_standard_device_name(DeviceNone))
101 , _samplerate (48000)
102 , _samples_per_period (1024)
105 , _systemic_audio_input_latency (0)
106 , _systemic_audio_output_latency (0)
108 , _processed_samples (0)
109 , _port_change_flag (false)
111 _instance_name = s_instance_name;
112 pthread_mutex_init (&_port_callback_mutex, 0);
113 pthread_mutex_init (&_process_callback_mutex, 0);
114 pthread_mutex_init (&_freewheel_mutex, 0);
115 pthread_cond_init (&_freewheel_signal, 0);
117 _port_connection_queue.reserve (128);
119 _pcmio = new CoreAudioPCM ();
120 _midiio = new CoreMidiIo ();
122 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
126 CoreAudioBackend::~CoreAudioBackend ()
128 delete _pcmio; _pcmio = 0;
129 delete _midiio; _midiio = 0;
130 pthread_mutex_destroy (&_port_callback_mutex);
131 pthread_mutex_destroy (&_process_callback_mutex);
132 pthread_mutex_destroy (&_freewheel_mutex);
133 pthread_cond_destroy (&_freewheel_signal);
136 /* AUDIOBACKEND API */
139 CoreAudioBackend::name () const
141 return X_("CoreAudio");
145 CoreAudioBackend::is_realtime () const
150 std::vector<AudioBackend::DeviceStatus>
151 CoreAudioBackend::enumerate_devices () const
153 _duplex_audio_device_status.clear();
154 std::map<size_t, std::string> devices;
155 _pcmio->duplex_device_list(devices);
157 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
158 if (_input_audio_device == "") _input_audio_device = i->second;
159 if (_output_audio_device == "") _output_audio_device = i->second;
160 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
162 return _duplex_audio_device_status;
165 std::vector<AudioBackend::DeviceStatus>
166 CoreAudioBackend::enumerate_input_devices () const
168 _input_audio_device_status.clear();
169 std::map<size_t, std::string> devices;
170 _pcmio->input_device_list(devices);
172 _input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
173 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
174 if (_input_audio_device == "") _input_audio_device = i->second;
175 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
177 return _input_audio_device_status;
181 std::vector<AudioBackend::DeviceStatus>
182 CoreAudioBackend::enumerate_output_devices () const
184 _output_audio_device_status.clear();
185 std::map<size_t, std::string> devices;
186 _pcmio->output_device_list(devices);
188 _output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
189 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
190 if (_output_audio_device == "") _output_audio_device = i->second;
191 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
193 return _output_audio_device_status;
197 CoreAudioBackend::available_sample_rates (const std::string& device) const
199 std::vector<float> sr;
200 _pcmio->available_sample_rates (name_to_id (device), sr);
205 CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) const
207 std::vector<float> sr;
208 std::vector<float> sr_in;
209 std::vector<float> sr_out;
211 const uint32_t inp = name_to_id (input_device, Input);
212 const uint32_t out = name_to_id (output_device, Output);
214 if (inp == UINT32_MAX && out == UINT32_MAX) {
216 } else if (inp == UINT32_MAX) {
217 _pcmio->available_sample_rates (out, sr_out);
219 } else if (out == UINT32_MAX) {
220 _pcmio->available_sample_rates (inp, sr_in);
223 _pcmio->available_sample_rates (inp, sr_in);
224 _pcmio->available_sample_rates (out, sr_out);
225 // TODO allow to use different SR per device, tweak aggregate
226 std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
231 std::vector<uint32_t>
232 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
234 std::vector<uint32_t> bs;
235 _pcmio->available_buffer_sizes (name_to_id (device), bs);
239 std::vector<uint32_t>
240 CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) 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_device, Input);
246 const uint32_t out = name_to_id (output_device, Output);
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 (inp, 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, Input));
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, Output));
311 if (sr > 0) { set_sample_rate(sr); }
316 CoreAudioBackend::set_sample_rate (float sr)
318 std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_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);
336 coreaudio_set_realtime_policy (_main_thread);
338 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i) {
339 coreaudio_set_realtime_policy (*i);
341 //engine.buffer_size_change (bs);
346 CoreAudioBackend::set_interleaved (bool yn)
348 if (!yn) { return 0; }
353 CoreAudioBackend::set_input_channels (uint32_t cc)
360 CoreAudioBackend::set_output_channels (uint32_t cc)
367 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
369 _systemic_audio_input_latency = sl;
374 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
376 _systemic_audio_output_latency = sl;
380 /* Retrieving parameters */
382 CoreAudioBackend::device_name () const
388 CoreAudioBackend::input_device_name () const
390 return _input_audio_device;
394 CoreAudioBackend::output_device_name () const
396 return _output_audio_device;
400 CoreAudioBackend::sample_rate () const
406 CoreAudioBackend::buffer_size () const
408 return _samples_per_period;
412 CoreAudioBackend::interleaved () const
418 CoreAudioBackend::input_channels () const
424 CoreAudioBackend::output_channels () const
430 CoreAudioBackend::systemic_input_latency () const
432 return _systemic_audio_input_latency;
436 CoreAudioBackend::systemic_output_latency () const
438 return _systemic_audio_output_latency;
443 std::vector<std::string>
444 CoreAudioBackend::enumerate_midi_options () const
446 if (_midi_options.empty()) {
447 _midi_options.push_back (_("CoreMidi"));
448 _midi_options.push_back (get_standard_device_name(DeviceNone));
450 return _midi_options;
454 CoreAudioBackend::set_midi_option (const std::string& opt)
456 if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
459 _midi_driver_option = opt;
464 CoreAudioBackend::midi_option () const
466 return _midi_driver_option;
470 CoreAudioBackend::launch_control_app ()
472 if (name_to_id (_input_audio_device) != UINT32_MAX) {
473 _pcmio->launch_control_app(name_to_id(_input_audio_device, Input));
475 if (name_to_id (_output_audio_device) != UINT32_MAX) {
476 _pcmio->launch_control_app(name_to_id(_output_audio_device, Output));
482 static void * pthread_freewheel (void *arg)
484 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
485 d->freewheel_thread ();
490 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
492 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
493 return d->process_callback(n_samples, host_time);
497 CoreAudioBackend::_start (bool for_latency_measurement)
499 AudioBackend::ErrorCode error_code = NoError;
501 if ((!_active_ca || !_active_fw) && _run) {
502 // recover from 'halted', reap threads
506 if (_active_ca || _active_fw || _run) {
507 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
508 return BackendReinitializationError;
511 if (_ports.size () || _portmap.size ()) {
512 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
513 _system_inputs.clear();
514 _system_outputs.clear();
515 _system_midi_in.clear();
516 _system_midi_out.clear();
521 uint32_t device1 = name_to_id(_input_audio_device, Input);
522 uint32_t device2 = name_to_id(_output_audio_device, Output);
524 assert(_active_ca == false);
525 assert(_active_fw == false);
527 _freewheel_ack = false;
528 _reinit_thread_callback = true;
529 _last_process_start = 0;
531 _pcmio->set_error_callback (error_callback_ptr, this);
532 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
533 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
535 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
537 printf("STATE: %d\n", _pcmio->state ());
539 switch (_pcmio->state ()) {
543 PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
544 error_code = AudioDeviceInvalidError;
547 PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
548 error_code = AudioDeviceNotAvailableError;
551 PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
552 error_code = AudioDeviceOpenError;
555 PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
556 error_code = SampleRateNotSupportedError;
559 PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
560 error_code = PeriodSizeNotSupportedError;
563 PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
564 error_code = SampleFormatNotSupportedError;
567 PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
568 error_code = BackendInitializationError; // XXX
571 PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
572 error_code = OutOfMemoryError;
575 PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
576 error_code = BackendInitializationError; // XXX
579 PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
580 error_code = AudioDeviceIOError;
583 PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
584 error_code = PeriodSizeNotSupportedError;
587 PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
588 error_code = DeviceConfigurationNotSupportedError;
591 PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
592 error_code = BackendInitializationError;
595 if (_pcmio->state ()) {
599 if (_n_outputs != _pcmio->n_playback_channels ()) {
600 if (_n_outputs == 0) {
601 _n_outputs = _pcmio->n_playback_channels ();
603 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
605 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
608 if (_n_inputs != _pcmio->n_capture_channels ()) {
609 if (_n_inputs == 0) {
610 _n_inputs = _pcmio->n_capture_channels ();
612 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
614 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
617 if (_pcmio->sample_rate() != _samplerate) {
618 _samplerate = _pcmio->sample_rate();
619 engine.sample_rate_change (_samplerate);
620 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
623 _measure_latency = for_latency_measurement;
627 _port_change_flag = false;
629 if (_midi_driver_option == _("CoreMidi")) {
630 _midiio->set_enabled(true);
631 _midiio->set_port_changed_callback(midi_port_change, this);
632 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
635 if (register_system_audio_ports()) {
636 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
638 return PortRegistrationError;
641 engine.sample_rate_change (_samplerate);
642 engine.buffer_size_change (_samples_per_period);
644 if (engine.reestablish_ports ()) {
645 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
647 return PortReconnectError;
650 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
652 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
653 delete _pcmio; _pcmio = 0;
655 return ProcessThreadStartError;
659 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
662 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
666 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
672 return FreewheelThreadStartError;
676 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
679 return ProcessThreadStartError;
682 engine.reconnect_ports ();
684 // force an initial registration_callback() & latency re-compute
685 _port_change_flag = true;
689 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
696 CoreAudioBackend::stop ()
705 _midiio->set_port_changed_callback(NULL, NULL);
708 pthread_mutex_lock (&_freewheel_mutex);
709 pthread_cond_signal (&_freewheel_signal);
710 pthread_mutex_unlock (&_freewheel_mutex);
712 if (pthread_join (_freeewheel_thread, &status)) {
713 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
720 _active_fw = false; // ??
726 CoreAudioBackend::freewheel (bool onoff)
728 if (onoff == _freewheeling) {
731 _freewheeling = onoff;
732 // wake up freewheeling thread
733 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
734 pthread_cond_signal (&_freewheel_signal);
735 pthread_mutex_unlock (&_freewheel_mutex);
741 CoreAudioBackend::dsp_load () const
743 return 100.f * _dsp_load;
747 CoreAudioBackend::raw_buffer_size (DataType t)
750 case DataType::AUDIO:
751 return _samples_per_period * sizeof(Sample);
753 return _max_buffer_size; // XXX not really limited
760 CoreAudioBackend::sample_time ()
762 return _processed_samples;
766 CoreAudioBackend::sample_time_at_cycle_start ()
768 return _processed_samples;
772 CoreAudioBackend::samples_since_cycle_start ()
774 if (!_active_ca || !_run || _freewheeling || _freewheel) {
777 if (_last_process_start == 0) {
781 const uint64_t now = AudioGetCurrentHostTime ();
782 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
783 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
787 CoreAudioBackend::name_to_id(std::string device_name, DeviceFilter filter) const {
788 uint32_t device_id = UINT32_MAX;
789 std::map<size_t, std::string> devices;
792 _pcmio->input_device_list (devices);
795 _pcmio->output_device_list (devices);
798 _pcmio->duplex_device_list (devices);
802 _pcmio->device_list (devices);
806 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
807 if (i->second == device_name) {
808 device_id = i->first;
816 CoreAudioBackend::coreaudio_process_thread (void *arg)
818 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
819 boost::function<void ()> f = td->f;
826 CoreAudioBackend::coreaudio_set_realtime_policy (pthread_t thread_id) const
828 thread_time_constraint_policy_data_t policy;
830 mach_msg_type_number_t msgt = 4;
831 boolean_t dflt = false;
832 kern_return_t rv = thread_policy_get (pthread_mach_thread_np (_main_thread),
833 THREAD_TIME_CONSTRAINT_POLICY, (thread_policy_t) &policy,
835 printf ("Coreaudio Main Thread(%p) %d %d %d %d DFLT %d OK: %d\n", _main_thread, policy.period, policy.computation, policy.constraint, policy.preemptible, dflt, rv == KERN_SUCCESS);
838 double period_ns = 1e9 * _samples_per_period / _samplerate;
839 policy.period = AudioConvertNanosToHostTime (period_ns);
840 policy.computation = AudioConvertNanosToHostTime (period_ns * .9);
841 policy.constraint = AudioConvertNanosToHostTime (period_ns * .95);
842 policy.preemptible = true;
843 kern_return_t res = thread_policy_set (pthread_mach_thread_np (thread_id),
844 THREAD_TIME_CONSTRAINT_POLICY, (thread_policy_t) &policy,
845 THREAD_TIME_CONSTRAINT_POLICY_COUNT);
848 printf ("Coreaudio Proc Thread(%p) %d %d %d %d OK: %d\n", thread_id, policy.period, policy.computation, policy.constraint, policy.preemptible, res == KERN_SUCCESS);
850 return res != KERN_SUCCESS;
854 CoreAudioBackend::create_process_thread (boost::function<void()> func)
858 size_t stacksize = 100000;
860 ThreadData* td = new ThreadData (this, func, stacksize);
862 if (pbd_realtime_pthread_create (PBD_SCHED_FIFO, -22, stacksize,
863 &thread_id, coreaudio_process_thread, td)) {
864 pthread_attr_init (&attr);
865 pthread_attr_setstacksize (&attr, stacksize);
866 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
867 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
868 pthread_attr_destroy (&attr);
871 PBD::warning << _("AudioEngine: process thread failed to acquire realtime permissions.") << endmsg;
872 pthread_attr_destroy (&attr);
875 if (coreaudio_set_realtime_policy (thread_id)) {
876 PBD::warning << _("AudioEngine: process thread failed to set mach realtime policy.") << endmsg;
879 _threads.push_back (thread_id);
884 CoreAudioBackend::join_process_threads ()
888 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
891 if (pthread_join (*i, &status)) {
892 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
901 CoreAudioBackend::in_process_thread ()
903 if (pthread_equal (_main_thread, pthread_self()) != 0) {
907 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
909 if (pthread_equal (*i, pthread_self ()) != 0) {
917 CoreAudioBackend::process_thread_count ()
919 return _threads.size ();
923 CoreAudioBackend::update_latencies ()
925 // trigger latency callback in RT thread (locked graph)
926 port_connect_add_remove_callback();
932 CoreAudioBackend::private_handle () const
938 CoreAudioBackend::my_name () const
940 return _instance_name;
944 CoreAudioBackend::available () const
946 return _run && _active_fw && _active_ca;
950 CoreAudioBackend::port_name_size () const
956 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
958 std::string newname (_instance_name + ":" + name);
959 if (!valid_port (port)) {
960 PBD::warning << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
963 if (find_port (newname)) {
964 PBD::error << _("CoreAudioBackend::set_port_name: Port with given name already exists") << endmsg;
968 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
969 _portmap.erase (p->name());
970 _portmap.insert (make_pair (newname, p));
971 return p->set_name (newname);
975 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
977 if (!valid_port (port)) {
978 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
979 return std::string ();
981 return static_cast<CoreBackendPort*>(port)->name ();
985 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
987 if (!valid_port (port)) {
988 PBD::warning << _("CoreAudioBackend::get_port_property: Invalid Port(s)") << endmsg;
991 if (key == "http://jackaudio.org/metadata/pretty-name") {
993 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
994 if (!value.empty()) {
1002 CoreAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
1004 if (!valid_port (port)) {
1005 PBD::warning << _("CoreAudioBackend::set_port_property: Invalid Port(s)") << endmsg;
1008 if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
1009 static_cast<CoreBackendPort*>(port)->set_pretty_name (value);
1015 PortEngine::PortHandle
1016 CoreAudioBackend::get_port_by_name (const std::string& name) const
1018 PortHandle port = (PortHandle) find_port (name);
1023 CoreAudioBackend::get_ports (
1024 const std::string& port_name_pattern,
1025 DataType type, PortFlags flags,
1026 std::vector<std::string>& port_names) const
1030 bool use_regexp = false;
1031 if (port_name_pattern.size () > 0) {
1032 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
1037 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1038 CoreBackendPort* port = *i;
1039 if ((port->type () == type) && flags == (port->flags () & flags)) {
1040 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
1041 port_names.push_back (port->name ());
1047 regfree (&port_regex);
1053 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
1055 if (!valid_port (port)) {
1056 return DataType::NIL;
1058 return static_cast<CoreBackendPort*>(port)->type ();
1061 PortEngine::PortHandle
1062 CoreAudioBackend::register_port (
1063 const std::string& name,
1064 ARDOUR::DataType type,
1065 ARDOUR::PortFlags flags)
1067 if (name.size () == 0) { return 0; }
1068 if (flags & IsPhysical) { return 0; }
1069 return add_port (_instance_name + ":" + name, type, flags);
1072 PortEngine::PortHandle
1073 CoreAudioBackend::add_port (
1074 const std::string& name,
1075 ARDOUR::DataType type,
1076 ARDOUR::PortFlags flags)
1078 assert(name.size ());
1079 if (find_port (name)) {
1080 PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
1081 << " (" << name << ")" << endmsg;
1084 CoreBackendPort* port = NULL;
1086 case DataType::AUDIO:
1087 port = new CoreAudioPort (*this, name, flags);
1089 case DataType::MIDI:
1090 port = new CoreMidiPort (*this, name, flags);
1093 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
1097 _ports.insert (port);
1098 _portmap.insert (make_pair (name, port));
1104 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
1109 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
1110 PortIndex::iterator i = std::find (_ports.begin(), _ports.end(), static_cast<CoreBackendPort*>(port_handle));
1111 if (i == _ports.end ()) {
1112 PBD::warning << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
1115 disconnect_all(port_handle);
1116 _portmap.erase (port->name());
1122 CoreAudioBackend::register_system_audio_ports()
1126 const uint32_t a_ins = _n_inputs;
1127 const uint32_t a_out = _n_outputs;
1129 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device, Input), true);
1130 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device, Output), false);
1133 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1134 coreaudio_reported_input_latency,
1135 coreaudio_reported_output_latency);
1139 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1140 for (uint32_t i = 0; i < a_ins; ++i) {
1142 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1143 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1145 set_latency_range (p, false, lr);
1146 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1147 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1148 _system_inputs.push_back(cp);
1151 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1152 for (uint32_t i = 0; i < a_out; ++i) {
1154 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1155 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1157 set_latency_range (p, true, lr);
1158 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1159 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1160 _system_outputs.push_back(cp);
1166 CoreAudioBackend::update_system_port_latecies ()
1168 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1169 (*it)->update_connected_latency (true);
1171 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1172 (*it)->update_connected_latency (false);
1175 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1176 (*it)->update_connected_latency (true);
1178 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1179 (*it)->update_connected_latency (false);
1184 CoreAudioBackend::coremidi_rediscover()
1186 if (!_run) { return; }
1187 assert(_midi_driver_option == _("CoreMidi"));
1189 pthread_mutex_lock (&_process_callback_mutex);
1191 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1193 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1194 if ((*it)->name() == _midiio->port_id(i, false)) {
1203 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1205 _port_change_flag = true;
1206 unregister_port((*it));
1207 it = _system_midi_out.erase(it);
1211 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1213 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1214 if ((*it)->name() == _midiio->port_id(i, true)) {
1223 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1225 _port_change_flag = true;
1226 unregister_port((*it));
1227 it = _system_midi_in.erase(it);
1231 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1232 std::string name = _midiio->port_id(i, true);
1233 if (find_port_in(_system_midi_in, name)) {
1238 printf("register MIDI Input: %s\n", name.c_str());
1240 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1242 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1246 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1247 set_latency_range (p, false, lr);
1248 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1249 pp->set_pretty_name(_midiio->port_name(i, true));
1250 _system_midi_in.push_back(pp);
1251 _port_change_flag = true;
1254 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1255 std::string name = _midiio->port_id(i, false);
1256 if (find_port_in(_system_midi_out, name)) {
1261 printf("register MIDI OUT: %s\n", name.c_str());
1263 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1265 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1269 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1270 set_latency_range (p, false, lr);
1271 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1272 pp->set_pretty_name(_midiio->port_name(i, false));
1273 _system_midi_out.push_back(pp);
1274 _port_change_flag = true;
1278 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1279 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1281 pthread_mutex_unlock (&_process_callback_mutex);
1285 CoreAudioBackend::unregister_ports (bool system_only)
1287 _system_inputs.clear();
1288 _system_outputs.clear();
1289 _system_midi_in.clear();
1290 _system_midi_out.clear();
1292 for (PortIndex::iterator i = _ports.begin (); i != _ports.end ();) {
1293 PortIndex::iterator cur = i++;
1294 CoreBackendPort* port = *cur;
1295 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1296 port->disconnect_all ();
1297 _portmap.erase (port->name());
1305 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1307 CoreBackendPort* src_port = find_port (src);
1308 CoreBackendPort* dst_port = find_port (dst);
1311 PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
1312 << " (" << src <<")" << endmsg;
1316 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
1317 << " (" << dst <<")" << endmsg;
1320 return src_port->connect (dst_port);
1324 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1326 CoreBackendPort* src_port = find_port (src);
1327 CoreBackendPort* dst_port = find_port (dst);
1329 if (!src_port || !dst_port) {
1330 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1333 return src_port->disconnect (dst_port);
1337 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1339 CoreBackendPort* dst_port = find_port (dst);
1340 if (!valid_port (src)) {
1341 PBD::warning << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1345 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
1346 << " (" << dst << ")" << endmsg;
1349 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1353 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1355 CoreBackendPort* dst_port = find_port (dst);
1356 if (!valid_port (src) || !dst_port) {
1357 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1360 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1364 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1366 if (!valid_port (port)) {
1367 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1370 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1375 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1377 if (!valid_port (port)) {
1378 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1381 return static_cast<CoreBackendPort*>(port)->is_connected ();
1385 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1387 CoreBackendPort* dst_port = find_port (dst);
1389 if (!valid_port (src) || !dst_port) {
1390 PBD::warning << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1394 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1398 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1400 if (!valid_port (port)) {
1401 PBD::warning << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1404 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1408 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1410 if (!valid_port (port)) {
1411 PBD::warning << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1415 assert (0 == names.size ());
1417 const std::set<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1419 for (std::set<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1420 names.push_back ((*i)->name ());
1423 return (int)names.size ();
1428 CoreAudioBackend::midi_event_get (
1429 pframes_t& timestamp,
1430 size_t& size, uint8_t const** buf, void* port_buffer,
1431 uint32_t event_index)
1433 if (!buf || !port_buffer) return -1;
1434 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1435 if (event_index >= source.size ()) {
1438 CoreMidiEvent const& event = source[event_index];
1440 timestamp = event.timestamp ();
1441 size = event.size ();
1442 *buf = event.data ();
1447 CoreAudioBackend::_midi_event_put (
1449 pframes_t timestamp,
1450 const uint8_t* buffer, size_t size)
1452 if (!buffer || !port_buffer) return -1;
1453 if (size >= MaxCoreMidiEventSize) {
1456 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1458 if (dst.size () && (pframes_t)dst.back ().timestamp () > timestamp) {
1459 // nevermind, ::get_buffer() sorts events
1460 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1461 (pframes_t)dst.back ().timestamp (), timestamp);
1464 dst.push_back (CoreMidiEvent (timestamp, buffer, size));
1470 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1472 if (!port_buffer) return 0;
1473 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1477 CoreAudioBackend::midi_clear (void* port_buffer)
1479 if (!port_buffer) return;
1480 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1488 CoreAudioBackend::can_monitor_input () const
1494 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1500 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1506 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1511 /* Latency management */
1514 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1516 if (!valid_port (port)) {
1517 PBD::warning << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1520 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1524 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1527 if (!valid_port (port)) {
1528 PBD::warning << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1533 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1536 r = p->latency_range (for_playback);
1537 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1538 if (p->is_input() && for_playback) {
1539 r.min += _samples_per_period;
1540 r.max += _samples_per_period;
1542 if (p->is_output() && !for_playback) {
1543 r.min += _samples_per_period;
1544 r.max += _samples_per_period;
1550 /* Discovering physical ports */
1553 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1555 if (!valid_port (port)) {
1556 PBD::warning << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1559 return static_cast<CoreBackendPort*>(port)->is_physical ();
1563 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1565 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1566 CoreBackendPort* port = *i;
1567 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1568 port_names.push_back (port->name ());
1574 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1576 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1577 CoreBackendPort* port = *i;
1578 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1579 port_names.push_back (port->name ());
1585 CoreAudioBackend::n_physical_outputs () const
1589 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1590 CoreBackendPort* port = *i;
1591 if (port->is_output () && port->is_physical ()) {
1592 switch (port->type ()) {
1593 case DataType::AUDIO: ++n_audio; break;
1594 case DataType::MIDI: ++n_midi; break;
1600 cc.set (DataType::AUDIO, n_audio);
1601 cc.set (DataType::MIDI, n_midi);
1606 CoreAudioBackend::n_physical_inputs () const
1610 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1611 CoreBackendPort* port = *i;
1612 if (port->is_input () && port->is_physical ()) {
1613 switch (port->type ()) {
1614 case DataType::AUDIO: ++n_audio; break;
1615 case DataType::MIDI: ++n_midi; break;
1621 cc.set (DataType::AUDIO, n_audio);
1622 cc.set (DataType::MIDI, n_midi);
1626 /* Getting access to the data buffer for a port */
1629 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1632 assert (valid_port (port));
1633 if (!port || !valid_port (port)) return NULL; // XXX remove me
1634 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1638 CoreAudioBackend::pre_process ()
1640 bool connections_changed = false;
1641 bool ports_changed = false;
1642 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1643 if (_port_change_flag) {
1644 ports_changed = true;
1645 _port_change_flag = false;
1647 if (!_port_connection_queue.empty ()) {
1648 connections_changed = true;
1650 while (!_port_connection_queue.empty ()) {
1651 PortConnectData *c = _port_connection_queue.back ();
1652 manager.connect_callback (c->a, c->b, c->c);
1653 _port_connection_queue.pop_back ();
1656 pthread_mutex_unlock (&_port_callback_mutex);
1658 if (ports_changed) {
1659 manager.registration_callback();
1661 if (connections_changed) {
1662 manager.graph_order_callback();
1664 if (connections_changed || ports_changed) {
1665 update_system_port_latecies ();
1666 engine.latency_callback(false);
1667 engine.latency_callback(true);
1672 CoreAudioBackend::reset_midi_parsers ()
1674 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1675 CoreMidiPort* port = dynamic_cast<CoreMidiPort*>(*it);
1677 port->reset_parser ();
1683 CoreAudioBackend::freewheel_thread ()
1686 bool first_run = false;
1687 /* Freewheeling - use for export. The first call to
1688 * engine.process_callback() after engine.freewheel_callback will
1689 * if the first export cycle.
1690 * For reliable precise export timing, the calls need to be in sync.
1692 * Furthermore we need to make sure the registered process thread
1695 * _freewheeling = GUI thread state as set by ::freewheel()
1696 * _freewheel = in sync here (export thread)
1698 pthread_mutex_lock (&_freewheel_mutex);
1700 // check if we should run,
1701 if (_freewheeling != _freewheel) {
1702 if (!_freewheeling) {
1703 // prepare leaving freewheeling mode
1704 _freewheel = false; // first mark as disabled
1705 _reinit_thread_callback = true; // hand over _main_thread
1706 _freewheel_ack = false; // prepare next handshake
1707 reset_midi_parsers ();
1708 _midiio->set_enabled(true);
1709 engine.freewheel_callback (_freewheeling);
1716 if (!_freewheel || !_freewheel_ack) {
1717 // wait for a change, we use a timed wait to
1718 // terminate early in case some error sets _run = 0
1721 gettimeofday (&tv, NULL);
1722 ts.tv_sec = tv.tv_sec + 3;
1724 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1729 // tell the engine we're ready to GO.
1730 engine.freewheel_callback (_freewheeling);
1732 _main_thread = pthread_self();
1733 AudioEngine::thread_init_callback (this);
1734 _midiio->set_enabled(false);
1735 reset_midi_parsers ();
1736 coreaudio_set_realtime_policy (_main_thread);
1739 // process port updates first in every cycle.
1742 // prevent coreaudio device changes
1743 pthread_mutex_lock (&_process_callback_mutex);
1747 // clear input buffers
1748 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1749 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1751 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1752 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1755 _last_process_start = 0;
1756 if (engine.process_callback (_samples_per_period)) {
1757 pthread_mutex_unlock (&_process_callback_mutex);
1761 pthread_mutex_unlock (&_process_callback_mutex);
1763 Glib::usleep (100); // don't hog cpu
1766 pthread_mutex_unlock (&_freewheel_mutex);
1771 // engine.process_callback() returner error
1772 engine.halted_callback("CoreAudio Freehweeling aborted.");
1777 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1784 if (_run && _freewheel && !_freewheel_ack) {
1785 // acknowledge freewheeling; hand-over thread ID
1786 pthread_mutex_lock (&_freewheel_mutex);
1787 if (_freewheel) _freewheel_ack = true;
1788 pthread_cond_signal (&_freewheel_signal);
1789 pthread_mutex_unlock (&_freewheel_mutex);
1792 if (!_run || _freewheel || _preinit) {
1793 // NB if we return 1, the output is
1794 // zeroed by the coreaudio callback
1798 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1799 _reinit_thread_callback = false;
1800 _main_thread = pthread_self();
1801 AudioEngine::thread_init_callback (this);
1802 coreaudio_set_realtime_policy (_main_thread);
1805 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1806 // block while devices are added/removed
1808 printf("Xrun due to device change\n");
1813 /* port-connection change */
1816 // cycle-length in usec
1817 const double nominal_time = 1e6 * n_samples / _samplerate;
1819 clock1 = g_get_monotonic_time();
1823 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1824 CoreMidiPort* port = dynamic_cast<CoreMidiPort*> (*it);
1829 uint8_t data[MaxCoreMidiEventSize];
1830 size_t size = sizeof(data);
1832 port->clear_events ();
1834 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1835 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1836 assert (time < n_samples);
1837 port->parse_events (time, data, size);
1838 size = sizeof(data); /* prepare for next call to recv_event */
1844 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1845 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1848 /* clear output buffers */
1849 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1850 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1853 _midiio->start_cycle();
1854 _last_process_start = host_time;
1856 if (engine.process_callback (n_samples)) {
1857 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1858 //_pcmio->pcm_stop ();
1860 pthread_mutex_unlock (&_process_callback_mutex);
1865 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1866 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1869 /* queue outgoing midi */
1871 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1872 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1873 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1874 _midiio->send_event (i, mit->timestamp (), mit->data (), mit->size ());
1878 /* write back audio */
1880 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1881 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1884 _processed_samples += n_samples;
1886 /* calc DSP load. */
1887 _dsp_load_calc.set_max_time (_samplerate, _samples_per_period);
1888 _dsp_load_calc.set_start_timestamp_us (clock1);
1889 _dsp_load_calc.set_stop_timestamp_us (g_get_monotonic_time());
1890 _dsp_load = _dsp_load_calc.get_dsp_load ();
1892 pthread_mutex_unlock (&_process_callback_mutex);
1897 CoreAudioBackend::error_callback ()
1899 _pcmio->set_error_callback (NULL, NULL);
1900 _pcmio->set_sample_rate_callback (NULL, NULL);
1901 _pcmio->set_xrun_callback (NULL, NULL);
1902 _midiio->set_port_changed_callback(NULL, NULL);
1903 engine.halted_callback("CoreAudio Process aborted.");
1908 CoreAudioBackend::xrun_callback ()
1914 CoreAudioBackend::buffer_size_callback ()
1916 uint32_t bs = _pcmio->samples_per_period();
1917 if (bs == _samples_per_period) {
1920 _samples_per_period = bs;
1921 engine.buffer_size_change (_samples_per_period);
1925 CoreAudioBackend::sample_rate_callback ()
1929 printf("Samplerate change during initialization.\n");
1933 _pcmio->set_error_callback (NULL, NULL);
1934 _pcmio->set_sample_rate_callback (NULL, NULL);
1935 _pcmio->set_xrun_callback (NULL, NULL);
1936 _midiio->set_port_changed_callback(NULL, NULL);
1937 engine.halted_callback("Sample Rate Changed.");
1942 CoreAudioBackend::hw_changed_callback ()
1944 _reinit_thread_callback = true;
1945 engine.request_device_list_update();
1948 /******************************************************************************/
1950 static boost::shared_ptr<CoreAudioBackend> _instance;
1952 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1953 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1954 static int deinstantiate ();
1955 static bool already_configured ();
1956 static bool available ();
1958 static ARDOUR::AudioBackendInfo _descriptor = {
1967 static boost::shared_ptr<AudioBackend>
1968 backend_factory (AudioEngine& e)
1971 _instance.reset (new CoreAudioBackend (e, _descriptor));
1977 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1979 s_instance_name = arg1;
1991 already_configured ()
2002 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
2004 return &_descriptor;
2008 /******************************************************************************/
2009 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2014 _capture_latency_range.min = 0;
2015 _capture_latency_range.max = 0;
2016 _playback_latency_range.min = 0;
2017 _playback_latency_range.max = 0;
2020 CoreBackendPort::~CoreBackendPort () {
2025 int CoreBackendPort::connect (CoreBackendPort *port)
2028 PBD::warning << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
2032 if (type () != port->type ()) {
2033 PBD::warning << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
2037 if (is_output () && port->is_output ()) {
2038 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
2042 if (is_input () && port->is_input ()) {
2043 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
2048 PBD::warning << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
2052 if (is_connected (port)) {
2053 #if 0 // don't bother to warn about this for now. just ignore it
2054 PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
2055 << " (" << name () << ") -> (" << port->name () << ")"
2061 _connect (port, true);
2066 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
2068 _connections.insert (port);
2070 port->_connect (this, false);
2071 _osx_backend.port_connect_callback (name(), port->name(), true);
2075 int CoreBackendPort::disconnect (CoreBackendPort *port)
2078 PBD::warning << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
2082 if (!is_connected (port)) {
2083 PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
2084 << " (" << name () << ") -> (" << port->name () << ")"
2088 _disconnect (port, true);
2092 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2094 std::set<CoreBackendPort*>::iterator it = _connections.find (port);
2095 assert (it != _connections.end ());
2096 _connections.erase (it);
2098 port->_disconnect (this, false);
2099 _osx_backend.port_connect_callback (name(), port->name(), false);
2103 void CoreBackendPort::disconnect_all ()
2105 while (!_connections.empty ()) {
2106 std::set<CoreBackendPort*>::iterator it = _connections.begin ();
2107 (*it)->_disconnect (this, false);
2108 _osx_backend.port_connect_callback (name(), (*it)->name(), false);
2109 _connections.erase (it);
2114 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2116 return _connections.find (const_cast<CoreBackendPort *>(port)) != _connections.end ();
2119 bool CoreBackendPort::is_physically_connected () const
2121 for (std::set<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2122 if ((*it)->is_physical ()) {
2130 CoreBackendPort::set_latency_range (const LatencyRange &latency_range, bool for_playback)
2133 _playback_latency_range = latency_range;
2135 _capture_latency_range = latency_range;
2138 for (std::set<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2139 if ((*it)->is_physical ()) {
2140 (*it)->update_connected_latency (is_input ());
2146 CoreBackendPort::update_connected_latency (bool for_playback)
2149 lr.min = lr.max = 0;
2150 const std::set<CoreBackendPort *>& cp = get_connections ();
2151 for (std::set<CoreBackendPort*>::const_iterator it = cp.begin (); it != cp.end (); ++it) {
2153 l = (*it)->latency_range (for_playback);
2154 lr.min = std::max (lr.min, l.min);
2155 lr.max = std::max (lr.max, l.max);
2157 set_latency_range (lr, for_playback);
2160 /******************************************************************************/
2162 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2163 : CoreBackendPort (b, name, flags)
2165 memset (_buffer, 0, sizeof (_buffer));
2166 mlock(_buffer, sizeof (_buffer));
2169 CoreAudioPort::~CoreAudioPort () { }
2171 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2174 const std::set<CoreBackendPort *>& connections = get_connections ();
2175 std::set<CoreBackendPort*>::const_iterator it = connections.begin ();
2176 if (it == connections.end ()) {
2177 memset (_buffer, 0, n_samples * sizeof (Sample));
2179 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2180 assert (source && source->is_output ());
2181 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2182 while (++it != connections.end ()) {
2183 source = static_cast<const CoreAudioPort*>(*it);
2184 assert (source && source->is_output ());
2185 Sample* dst = buffer ();
2186 const Sample* src = source->const_buffer ();
2187 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2197 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2198 : CoreBackendPort (b, name, flags)
2203 , _unbuffered_bytes(0)
2205 , _expected_bytes(0)
2209 _buffer[0].clear ();
2210 _buffer[1].clear ();
2212 _buffer[0].reserve (256);
2213 _buffer[1].reserve (256);
2216 CoreMidiPort::~CoreMidiPort () { }
2218 struct MidiEventSorter {
2219 bool operator() (CoreMidiEvent const& a, CoreMidiEvent const& b) {
2224 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2227 (_buffer[_bufperiod]).clear ();
2228 const std::set<CoreBackendPort*>& connections = get_connections ();
2229 for (std::set<CoreBackendPort*>::const_iterator i = connections.begin ();
2230 i != connections.end ();
2232 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2233 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2234 (_buffer[_bufperiod]).push_back (*it);
2237 std::stable_sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2240 return &(_buffer[_bufperiod]);
2244 CoreMidiPort::queue_event (
2246 pframes_t timestamp,
2247 const uint8_t* buffer, size_t size)
2249 const int ret = CoreAudioBackend::_midi_event_put (port_buffer, timestamp, buffer, size);
2250 if (!ret) { /* success */
2251 _event._pending = false;
2257 CoreMidiPort::reset_parser ()
2259 _event._pending = false;
2261 _unbuffered_bytes = 0;
2263 _expected_bytes = 0;
2268 CoreMidiPort::clear_events ()
2270 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2275 CoreMidiPort::parse_events (const uint64_t time, const uint8_t *data, const size_t size)
2277 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2279 if (_event._pending) {
2280 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2285 for (size_t i = 0; i < size; ++i) {
2286 if (_first_time && !(data[i] & 0x80)) {
2290 _first_time = false;
2292 if (process_byte(time, data[i])) {
2293 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2300 // based on JackMidiRawInputWriteQueue by Devin Anderson //
2302 CoreMidiPort::process_byte(const uint64_t time, const uint8_t byte)
2309 _parser_buffer[0] = byte;
2310 prepare_byte_event(time, byte);
2315 if (_status_byte == 0xf0) {
2317 return prepare_buffered_event(time);
2320 _unbuffered_bytes = 0;
2321 _expected_bytes = 0;
2326 // Non-realtime status byte
2328 printf ("CoreMidiPort: discarded bogus midi message\n");
2330 for (size_t i=0; i < _total_bytes; ++i) {
2331 printf("%02x ", _parser_buffer[i]);
2336 _unbuffered_bytes = 0;
2338 _status_byte = byte;
2339 switch (byte & 0xf0) {
2345 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
2346 _expected_bytes = 3;
2350 // Program Change, Channel Pressure
2351 _expected_bytes = 2;
2357 _expected_bytes = 0;
2361 // MTC Quarter Frame, Song Select
2362 _expected_bytes = 2;
2366 _expected_bytes = 3;
2371 _expected_bytes = 0;
2376 prepare_byte_event(time, byte);
2377 _expected_bytes = 0;
2386 if (! _status_byte) {
2387 // Data bytes without a status will be discarded.
2389 _unbuffered_bytes++;
2392 if (! _total_bytes) {
2393 record_byte(_status_byte);
2396 return (_total_bytes == _expected_bytes) ? prepare_buffered_event(time) : false;
2400 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2402 , _timestamp (timestamp)
2404 if (size > 0 && size < MaxCoreMidiEventSize) {
2405 memcpy (_data, data, size);
2409 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2410 : _size (other.size ())
2411 , _timestamp (other.timestamp ())
2413 if (other._size > 0) {
2414 assert (other._size < MaxCoreMidiEventSize);
2415 memcpy (_data, other._data, other._size);