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"
30 #include "rt_thread.h"
32 #include "pbd/compose.h"
33 #include "pbd/error.h"
34 #include "pbd/file_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 _pcmio = new CoreAudioPCM ();
118 _midiio = new CoreMidiIo ();
120 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
124 CoreAudioBackend::~CoreAudioBackend ()
126 delete _pcmio; _pcmio = 0;
127 delete _midiio; _midiio = 0;
128 pthread_mutex_destroy (&_port_callback_mutex);
129 pthread_mutex_destroy (&_process_callback_mutex);
130 pthread_mutex_destroy (&_freewheel_mutex);
131 pthread_cond_destroy (&_freewheel_signal);
134 /* AUDIOBACKEND API */
137 CoreAudioBackend::name () const
139 return X_("CoreAudio");
143 CoreAudioBackend::is_realtime () const
148 std::vector<AudioBackend::DeviceStatus>
149 CoreAudioBackend::enumerate_devices () const
151 _duplex_audio_device_status.clear();
152 std::map<size_t, std::string> devices;
153 _pcmio->duplex_device_list(devices);
155 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
156 if (_input_audio_device == "") _input_audio_device = i->second;
157 if (_output_audio_device == "") _output_audio_device = i->second;
158 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
160 return _duplex_audio_device_status;
163 std::vector<AudioBackend::DeviceStatus>
164 CoreAudioBackend::enumerate_input_devices () const
166 _input_audio_device_status.clear();
167 std::map<size_t, std::string> devices;
168 _pcmio->input_device_list(devices);
170 _input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
171 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
172 if (_input_audio_device == "") _input_audio_device = i->second;
173 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
175 return _input_audio_device_status;
179 std::vector<AudioBackend::DeviceStatus>
180 CoreAudioBackend::enumerate_output_devices () const
182 _output_audio_device_status.clear();
183 std::map<size_t, std::string> devices;
184 _pcmio->output_device_list(devices);
186 _output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
187 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
188 if (_output_audio_device == "") _output_audio_device = i->second;
189 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
191 return _output_audio_device_status;
195 CoreAudioBackend::available_sample_rates (const std::string& device) const
197 std::vector<float> sr;
198 _pcmio->available_sample_rates (name_to_id (device), sr);
203 CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) const
205 std::vector<float> sr;
206 std::vector<float> sr_in;
207 std::vector<float> sr_out;
209 const uint32_t inp = name_to_id (input_device, Input);
210 const uint32_t out = name_to_id (output_device, Output);
212 if (inp == UINT32_MAX && out == UINT32_MAX) {
214 } else if (inp == UINT32_MAX) {
215 _pcmio->available_sample_rates (out, sr_out);
217 } else if (out == UINT32_MAX) {
218 _pcmio->available_sample_rates (inp, sr_in);
221 _pcmio->available_sample_rates (inp, sr_in);
222 _pcmio->available_sample_rates (out, sr_out);
223 // TODO allow to use different SR per device, tweak aggregate
224 std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
229 std::vector<uint32_t>
230 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
232 std::vector<uint32_t> bs;
233 _pcmio->available_buffer_sizes (name_to_id (device), bs);
237 std::vector<uint32_t>
238 CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) const
240 std::vector<uint32_t> bs;
241 std::vector<uint32_t> bs_in;
242 std::vector<uint32_t> bs_out;
243 const uint32_t inp = name_to_id (input_device, Input);
244 const uint32_t out = name_to_id (output_device, Output);
245 if (inp == UINT32_MAX && out == UINT32_MAX) {
247 } else if (inp == UINT32_MAX) {
248 _pcmio->available_buffer_sizes (out, bs_out);
250 } else if (out == UINT32_MAX) {
251 _pcmio->available_buffer_sizes (inp, bs_in);
254 _pcmio->available_buffer_sizes (inp, bs_in);
255 _pcmio->available_buffer_sizes (out, bs_out);
256 std::set_intersection (bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
262 CoreAudioBackend::available_input_channel_count (const std::string&) const
264 return 128; // TODO query current device
268 CoreAudioBackend::available_output_channel_count (const std::string&) const
270 return 128; // TODO query current device
274 CoreAudioBackend::can_change_sample_rate_when_running () const
280 CoreAudioBackend::can_change_buffer_size_when_running () const
286 CoreAudioBackend::set_device_name (const std::string& d)
289 rv |= set_input_device_name (d);
290 rv |= set_output_device_name (d);
295 CoreAudioBackend::set_input_device_name (const std::string& d)
297 _input_audio_device = d;
298 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device, Input));
299 if (sr > 0) { set_sample_rate(sr); }
304 CoreAudioBackend::set_output_device_name (const std::string& d)
306 _output_audio_device = d;
308 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device, Output));
309 if (sr > 0) { set_sample_rate(sr); }
314 CoreAudioBackend::set_sample_rate (float sr)
316 std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_audio_device);
317 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
321 engine.sample_rate_change (sr);
326 CoreAudioBackend::set_buffer_size (uint32_t bs)
328 if (bs <= 0 || bs >= _max_buffer_size) {
331 _samples_per_period = bs;
332 _pcmio->set_samples_per_period(bs);
334 coreaudio_set_realtime_policy (_main_thread);
336 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i) {
337 coreaudio_set_realtime_policy (*i);
339 engine.buffer_size_change (bs);
344 CoreAudioBackend::set_interleaved (bool yn)
346 if (!yn) { return 0; }
351 CoreAudioBackend::set_input_channels (uint32_t cc)
358 CoreAudioBackend::set_output_channels (uint32_t cc)
365 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
367 _systemic_audio_input_latency = sl;
372 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
374 _systemic_audio_output_latency = sl;
378 /* Retrieving parameters */
380 CoreAudioBackend::device_name () const
386 CoreAudioBackend::input_device_name () const
388 return _input_audio_device;
392 CoreAudioBackend::output_device_name () const
394 return _output_audio_device;
398 CoreAudioBackend::sample_rate () const
404 CoreAudioBackend::buffer_size () const
406 return _samples_per_period;
410 CoreAudioBackend::interleaved () const
416 CoreAudioBackend::input_channels () const
422 CoreAudioBackend::output_channels () const
428 CoreAudioBackend::systemic_input_latency () const
430 return _systemic_audio_input_latency;
434 CoreAudioBackend::systemic_output_latency () const
436 return _systemic_audio_output_latency;
441 std::vector<std::string>
442 CoreAudioBackend::enumerate_midi_options () const
444 if (_midi_options.empty()) {
445 _midi_options.push_back (_("CoreMidi"));
446 _midi_options.push_back (get_standard_device_name(DeviceNone));
448 return _midi_options;
452 CoreAudioBackend::set_midi_option (const std::string& opt)
454 if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
457 _midi_driver_option = opt;
462 CoreAudioBackend::midi_option () const
464 return _midi_driver_option;
468 CoreAudioBackend::launch_control_app ()
470 if (name_to_id (_input_audio_device) != UINT32_MAX) {
471 _pcmio->launch_control_app(name_to_id(_input_audio_device, Input));
473 if (name_to_id (_output_audio_device) != UINT32_MAX) {
474 _pcmio->launch_control_app(name_to_id(_output_audio_device, Output));
480 static void * pthread_freewheel (void *arg)
482 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
483 d->freewheel_thread ();
488 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
490 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
491 return d->process_callback(n_samples, host_time);
495 CoreAudioBackend::_start (bool for_latency_measurement)
497 AudioBackend::ErrorCode error_code = NoError;
499 if ((!_active_ca || !_active_fw) && _run) {
500 // recover from 'halted', reap threads
504 if (_active_ca || _active_fw || _run) {
505 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
506 return BackendReinitializationError;
509 if (_ports.size () || _portmap.size ()) {
510 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
511 _system_inputs.clear();
512 _system_outputs.clear();
513 _system_midi_in.clear();
514 _system_midi_out.clear();
519 uint32_t device1 = name_to_id(_input_audio_device, Input);
520 uint32_t device2 = name_to_id(_output_audio_device, Output);
522 assert(_active_ca == false);
523 assert(_active_fw == false);
525 _freewheel_ack = false;
526 _reinit_thread_callback = true;
527 _last_process_start = 0;
529 _pcmio->set_error_callback (error_callback_ptr, this);
530 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
531 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
533 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
535 printf("STATE: %d\n", _pcmio->state ());
537 switch (_pcmio->state ()) {
541 PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
542 error_code = AudioDeviceInvalidError;
545 PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
546 error_code = AudioDeviceNotAvailableError;
549 PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
550 error_code = AudioDeviceOpenError;
553 PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
554 error_code = SampleRateNotSupportedError;
557 PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
558 error_code = PeriodSizeNotSupportedError;
561 PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
562 error_code = SampleFormatNotSupportedError;
565 PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
566 error_code = BackendInitializationError; // XXX
569 PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
570 error_code = OutOfMemoryError;
573 PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
574 error_code = BackendInitializationError; // XXX
577 PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
578 error_code = AudioDeviceIOError;
581 PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
582 error_code = PeriodSizeNotSupportedError;
585 PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
586 error_code = DeviceConfigurationNotSupportedError;
589 PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
590 error_code = BackendInitializationError;
593 if (_pcmio->state ()) {
597 if (_n_outputs != _pcmio->n_playback_channels ()) {
598 if (_n_outputs == 0) {
599 _n_outputs = _pcmio->n_playback_channels ();
601 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
603 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
606 if (_n_inputs != _pcmio->n_capture_channels ()) {
607 if (_n_inputs == 0) {
608 _n_inputs = _pcmio->n_capture_channels ();
610 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
612 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
615 if (_pcmio->sample_rate() != _samplerate) {
616 _samplerate = _pcmio->sample_rate();
617 engine.sample_rate_change (_samplerate);
618 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
621 _measure_latency = for_latency_measurement;
625 _port_change_flag = false;
627 if (_midi_driver_option == _("CoreMidi")) {
628 _midiio->set_enabled(true);
629 _midiio->set_port_changed_callback(midi_port_change, this);
630 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
633 if (register_system_audio_ports()) {
634 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
636 return PortRegistrationError;
639 engine.sample_rate_change (_samplerate);
640 engine.buffer_size_change (_samples_per_period);
642 if (engine.reestablish_ports ()) {
643 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
645 return PortReconnectError;
648 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
650 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
651 delete _pcmio; _pcmio = 0;
653 return ProcessThreadStartError;
657 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
660 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
664 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
670 return FreewheelThreadStartError;
674 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
677 return ProcessThreadStartError;
680 engine.reconnect_ports ();
682 // force an initial registration_callback() & latency re-compute
683 _port_change_flag = true;
687 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
694 CoreAudioBackend::stop ()
703 _midiio->set_port_changed_callback(NULL, NULL);
706 pthread_mutex_lock (&_freewheel_mutex);
707 pthread_cond_signal (&_freewheel_signal);
708 pthread_mutex_unlock (&_freewheel_mutex);
710 if (pthread_join (_freeewheel_thread, &status)) {
711 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
718 _active_fw = false; // ??
724 CoreAudioBackend::freewheel (bool onoff)
726 if (onoff == _freewheeling) {
729 _freewheeling = onoff;
730 // wake up freewheeling thread
731 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
732 pthread_cond_signal (&_freewheel_signal);
733 pthread_mutex_unlock (&_freewheel_mutex);
739 CoreAudioBackend::dsp_load () const
741 return 100.f * _dsp_load;
745 CoreAudioBackend::raw_buffer_size (DataType t)
748 case DataType::AUDIO:
749 return _samples_per_period * sizeof(Sample);
751 return _max_buffer_size; // XXX not really limited
758 CoreAudioBackend::sample_time ()
760 return _processed_samples;
764 CoreAudioBackend::sample_time_at_cycle_start ()
766 return _processed_samples;
770 CoreAudioBackend::samples_since_cycle_start ()
772 if (!_active_ca || !_run || _freewheeling || _freewheel) {
775 if (_last_process_start == 0) {
779 const uint64_t now = AudioGetCurrentHostTime ();
780 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
781 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
785 CoreAudioBackend::name_to_id(std::string device_name, DeviceFilter filter) const {
786 uint32_t device_id = UINT32_MAX;
787 std::map<size_t, std::string> devices;
790 _pcmio->input_device_list (devices);
793 _pcmio->output_device_list (devices);
796 _pcmio->duplex_device_list (devices);
800 _pcmio->device_list (devices);
804 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
805 if (i->second == device_name) {
806 device_id = i->first;
814 CoreAudioBackend::coreaudio_process_thread (void *arg)
816 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
817 boost::function<void ()> f = td->f;
824 CoreAudioBackend::coreaudio_set_realtime_policy (pthread_t thread_id) const
826 thread_time_constraint_policy_data_t policy;
828 mach_msg_type_number_t msgt = 4;
829 boolean_t dflt = false;
830 kern_return_t rv = thread_policy_get (pthread_mach_thread_np (_main_thread),
831 THREAD_TIME_CONSTRAINT_POLICY, (thread_policy_t) &policy,
833 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);
836 double period_ns = 1e9 * _samples_per_period / _samplerate;
837 policy.period = AudioConvertNanosToHostTime (period_ns);
838 policy.computation = AudioConvertNanosToHostTime (period_ns * .9);
839 policy.constraint = AudioConvertNanosToHostTime (period_ns * .95);
840 policy.preemptible = true;
841 kern_return_t res = thread_policy_set (pthread_mach_thread_np (thread_id),
842 THREAD_TIME_CONSTRAINT_POLICY, (thread_policy_t) &policy,
843 THREAD_TIME_CONSTRAINT_POLICY_COUNT);
846 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);
848 return res != KERN_SUCCESS;
852 CoreAudioBackend::create_process_thread (boost::function<void()> func)
856 size_t stacksize = 100000;
858 ThreadData* td = new ThreadData (this, func, stacksize);
860 if (_realtime_pthread_create (SCHED_FIFO, -22, stacksize,
861 &thread_id, coreaudio_process_thread, td)) {
862 pthread_attr_init (&attr);
863 pthread_attr_setstacksize (&attr, stacksize);
864 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
865 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
866 pthread_attr_destroy (&attr);
869 PBD::warning << _("AudioEngine: process thread failed to acquire realtime permissions.") << endmsg;
870 pthread_attr_destroy (&attr);
873 if (coreaudio_set_realtime_policy (thread_id)) {
874 PBD::warning << _("AudioEngine: process thread failed to set mach realtime policy.") << endmsg;
877 _threads.push_back (thread_id);
882 CoreAudioBackend::join_process_threads ()
886 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
889 if (pthread_join (*i, &status)) {
890 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
899 CoreAudioBackend::in_process_thread ()
901 if (pthread_equal (_main_thread, pthread_self()) != 0) {
905 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
907 if (pthread_equal (*i, pthread_self ()) != 0) {
915 CoreAudioBackend::process_thread_count ()
917 return _threads.size ();
921 CoreAudioBackend::update_latencies ()
923 // trigger latency callback in RT thread (locked graph)
924 port_connect_add_remove_callback();
930 CoreAudioBackend::private_handle () const
936 CoreAudioBackend::my_name () const
938 return _instance_name;
942 CoreAudioBackend::available () const
944 return _run && _active_fw && _active_ca;
948 CoreAudioBackend::port_name_size () const
954 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
956 std::string newname (_instance_name + ":" + name);
957 if (!valid_port (port)) {
958 PBD::warning << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
961 if (find_port (newname)) {
962 PBD::error << _("CoreAudioBackend::set_port_name: Port with given name already exists") << endmsg;
966 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
967 _portmap.erase (p->name());
968 _portmap.insert (make_pair (newname, p));
969 return p->set_name (newname);
973 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
975 if (!valid_port (port)) {
976 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
977 return std::string ();
979 return static_cast<CoreBackendPort*>(port)->name ();
983 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
985 if (!valid_port (port)) {
986 PBD::warning << _("CoreAudioBackend::get_port_property: Invalid Port(s)") << endmsg;
989 if (key == "http://jackaudio.org/metadata/pretty-name") {
991 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
992 if (!value.empty()) {
1000 CoreAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
1002 if (!valid_port (port)) {
1003 PBD::warning << _("CoreAudioBackend::set_port_property: Invalid Port(s)") << endmsg;
1006 if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
1007 static_cast<CoreBackendPort*>(port)->set_pretty_name (value);
1013 PortEngine::PortHandle
1014 CoreAudioBackend::get_port_by_name (const std::string& name) const
1016 PortHandle port = (PortHandle) find_port (name);
1021 CoreAudioBackend::get_ports (
1022 const std::string& port_name_pattern,
1023 DataType type, PortFlags flags,
1024 std::vector<std::string>& port_names) const
1028 bool use_regexp = false;
1029 if (port_name_pattern.size () > 0) {
1030 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
1035 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1036 CoreBackendPort* port = *i;
1037 if ((port->type () == type) && flags == (port->flags () & flags)) {
1038 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
1039 port_names.push_back (port->name ());
1045 regfree (&port_regex);
1051 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
1053 if (!valid_port (port)) {
1054 return DataType::NIL;
1056 return static_cast<CoreBackendPort*>(port)->type ();
1059 PortEngine::PortHandle
1060 CoreAudioBackend::register_port (
1061 const std::string& name,
1062 ARDOUR::DataType type,
1063 ARDOUR::PortFlags flags)
1065 if (name.size () == 0) { return 0; }
1066 if (flags & IsPhysical) { return 0; }
1067 return add_port (_instance_name + ":" + name, type, flags);
1070 PortEngine::PortHandle
1071 CoreAudioBackend::add_port (
1072 const std::string& name,
1073 ARDOUR::DataType type,
1074 ARDOUR::PortFlags flags)
1076 assert(name.size ());
1077 if (find_port (name)) {
1078 PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
1079 << " (" << name << ")" << endmsg;
1082 CoreBackendPort* port = NULL;
1084 case DataType::AUDIO:
1085 port = new CoreAudioPort (*this, name, flags);
1087 case DataType::MIDI:
1088 port = new CoreMidiPort (*this, name, flags);
1091 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
1095 _ports.insert (port);
1096 _portmap.insert (make_pair (name, port));
1102 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
1107 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
1108 PortIndex::iterator i = std::find (_ports.begin(), _ports.end(), static_cast<CoreBackendPort*>(port_handle));
1109 if (i == _ports.end ()) {
1110 PBD::warning << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
1113 disconnect_all(port_handle);
1114 _portmap.erase (port->name());
1120 CoreAudioBackend::register_system_audio_ports()
1124 const uint32_t a_ins = _n_inputs;
1125 const uint32_t a_out = _n_outputs;
1127 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device, Input), true);
1128 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device, Output), false);
1131 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1132 coreaudio_reported_input_latency,
1133 coreaudio_reported_output_latency);
1137 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1138 for (uint32_t i = 0; i < a_ins; ++i) {
1140 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1141 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1143 set_latency_range (p, false, lr);
1144 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1145 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1146 _system_inputs.push_back(cp);
1149 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1150 for (uint32_t i = 0; i < a_out; ++i) {
1152 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1153 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1155 set_latency_range (p, true, lr);
1156 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1157 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1158 _system_outputs.push_back(cp);
1164 CoreAudioBackend::coremidi_rediscover()
1166 if (!_run) { return; }
1167 assert(_midi_driver_option == _("CoreMidi"));
1169 pthread_mutex_lock (&_process_callback_mutex);
1171 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1173 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1174 if ((*it)->name() == _midiio->port_id(i, false)) {
1183 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1185 _port_change_flag = true;
1186 unregister_port((*it));
1187 it = _system_midi_out.erase(it);
1191 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1193 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1194 if ((*it)->name() == _midiio->port_id(i, true)) {
1203 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1205 _port_change_flag = true;
1206 unregister_port((*it));
1207 it = _system_midi_in.erase(it);
1211 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1212 std::string name = _midiio->port_id(i, true);
1213 if (find_port_in(_system_midi_in, name)) {
1218 printf("register MIDI Input: %s\n", name.c_str());
1220 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1222 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1226 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1227 set_latency_range (p, false, lr);
1228 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1229 pp->set_pretty_name(_midiio->port_name(i, true));
1230 _system_midi_in.push_back(pp);
1231 _port_change_flag = true;
1234 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1235 std::string name = _midiio->port_id(i, false);
1236 if (find_port_in(_system_midi_out, name)) {
1241 printf("register MIDI OUT: %s\n", name.c_str());
1243 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1245 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1249 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1250 set_latency_range (p, false, lr);
1251 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1252 pp->set_pretty_name(_midiio->port_name(i, false));
1253 _system_midi_out.push_back(pp);
1254 _port_change_flag = true;
1258 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1259 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1261 pthread_mutex_unlock (&_process_callback_mutex);
1265 CoreAudioBackend::unregister_ports (bool system_only)
1267 _system_inputs.clear();
1268 _system_outputs.clear();
1269 _system_midi_in.clear();
1270 _system_midi_out.clear();
1272 for (PortIndex::iterator i = _ports.begin (); i != _ports.end ();) {
1273 PortIndex::iterator cur = i++;
1274 CoreBackendPort* port = *cur;
1275 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1276 port->disconnect_all ();
1277 _portmap.erase (port->name());
1285 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1287 CoreBackendPort* src_port = find_port (src);
1288 CoreBackendPort* dst_port = find_port (dst);
1291 PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
1292 << " (" << src <<")" << endmsg;
1296 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
1297 << " (" << dst <<")" << endmsg;
1300 return src_port->connect (dst_port);
1304 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1306 CoreBackendPort* src_port = find_port (src);
1307 CoreBackendPort* dst_port = find_port (dst);
1309 if (!src_port || !dst_port) {
1310 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1313 return src_port->disconnect (dst_port);
1317 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1319 CoreBackendPort* dst_port = find_port (dst);
1320 if (!valid_port (src)) {
1321 PBD::warning << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1325 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
1326 << " (" << dst << ")" << endmsg;
1329 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1333 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1335 CoreBackendPort* dst_port = find_port (dst);
1336 if (!valid_port (src) || !dst_port) {
1337 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1340 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1344 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1346 if (!valid_port (port)) {
1347 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1350 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1355 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1357 if (!valid_port (port)) {
1358 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1361 return static_cast<CoreBackendPort*>(port)->is_connected ();
1365 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1367 CoreBackendPort* dst_port = find_port (dst);
1369 if (!valid_port (src) || !dst_port) {
1370 PBD::warning << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1374 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1378 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1380 if (!valid_port (port)) {
1381 PBD::warning << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1384 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1388 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1390 if (!valid_port (port)) {
1391 PBD::warning << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1395 assert (0 == names.size ());
1397 const std::set<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1399 for (std::set<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1400 names.push_back ((*i)->name ());
1403 return (int)names.size ();
1408 CoreAudioBackend::midi_event_get (
1409 pframes_t& timestamp,
1410 size_t& size, uint8_t** buf, void* port_buffer,
1411 uint32_t event_index)
1413 if (!buf || !port_buffer) return -1;
1414 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1415 if (event_index >= source.size ()) {
1418 CoreMidiEvent * const event = source[event_index].get ();
1420 timestamp = event->timestamp ();
1421 size = event->size ();
1422 *buf = event->data ();
1427 CoreAudioBackend::_midi_event_put (
1429 pframes_t timestamp,
1430 const uint8_t* buffer, size_t size)
1432 if (!buffer || !port_buffer) return -1;
1433 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1434 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1436 // nevermind, ::get_buffer() sorts events
1437 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1438 (pframes_t)dst.back ()->timestamp (), timestamp);
1441 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1447 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1449 if (!port_buffer) return 0;
1450 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1454 CoreAudioBackend::midi_clear (void* port_buffer)
1456 if (!port_buffer) return;
1457 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1465 CoreAudioBackend::can_monitor_input () const
1471 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1477 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1483 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1488 /* Latency management */
1491 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1493 if (!valid_port (port)) {
1494 PBD::warning << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1497 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1501 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1504 if (!valid_port (port)) {
1505 PBD::warning << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1510 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1513 r = p->latency_range (for_playback);
1514 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1515 if (p->is_input() && for_playback) {
1516 r.min += _samples_per_period;
1517 r.max += _samples_per_period;
1519 if (p->is_output() && !for_playback) {
1520 r.min += _samples_per_period;
1521 r.max += _samples_per_period;
1527 /* Discovering physical ports */
1530 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1532 if (!valid_port (port)) {
1533 PBD::warning << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1536 return static_cast<CoreBackendPort*>(port)->is_physical ();
1540 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1542 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1543 CoreBackendPort* port = *i;
1544 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1545 port_names.push_back (port->name ());
1551 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1553 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1554 CoreBackendPort* port = *i;
1555 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1556 port_names.push_back (port->name ());
1562 CoreAudioBackend::n_physical_outputs () const
1566 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1567 CoreBackendPort* port = *i;
1568 if (port->is_output () && port->is_physical ()) {
1569 switch (port->type ()) {
1570 case DataType::AUDIO: ++n_audio; break;
1571 case DataType::MIDI: ++n_midi; break;
1577 cc.set (DataType::AUDIO, n_audio);
1578 cc.set (DataType::MIDI, n_midi);
1583 CoreAudioBackend::n_physical_inputs () const
1587 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1588 CoreBackendPort* port = *i;
1589 if (port->is_input () && port->is_physical ()) {
1590 switch (port->type ()) {
1591 case DataType::AUDIO: ++n_audio; break;
1592 case DataType::MIDI: ++n_midi; break;
1598 cc.set (DataType::AUDIO, n_audio);
1599 cc.set (DataType::MIDI, n_midi);
1603 /* Getting access to the data buffer for a port */
1606 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1609 assert (valid_port (port));
1610 if (!port || !valid_port (port)) return NULL; // XXX remove me
1611 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1615 CoreAudioBackend::pre_process ()
1617 bool connections_changed = false;
1618 bool ports_changed = false;
1619 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1620 if (_port_change_flag) {
1621 ports_changed = true;
1622 _port_change_flag = false;
1624 if (!_port_connection_queue.empty ()) {
1625 connections_changed = true;
1627 while (!_port_connection_queue.empty ()) {
1628 PortConnectData *c = _port_connection_queue.back ();
1629 manager.connect_callback (c->a, c->b, c->c);
1630 _port_connection_queue.pop_back ();
1633 pthread_mutex_unlock (&_port_callback_mutex);
1635 if (ports_changed) {
1636 manager.registration_callback();
1638 if (connections_changed) {
1639 manager.graph_order_callback();
1641 if (connections_changed || ports_changed) {
1642 engine.latency_callback(false);
1643 engine.latency_callback(true);
1648 CoreAudioBackend::reset_midi_parsers ()
1650 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1651 CoreMidiPort* port = dynamic_cast<CoreMidiPort*>(*it);
1653 port->reset_parser ();
1659 CoreAudioBackend::freewheel_thread ()
1662 bool first_run = false;
1663 /* Freewheeling - use for export. The first call to
1664 * engine.process_callback() after engine.freewheel_callback will
1665 * if the first export cycle.
1666 * For reliable precise export timing, the calls need to be in sync.
1668 * Furthermore we need to make sure the registered process thread
1671 * _freewheeling = GUI thread state as set by ::freewheel()
1672 * _freewheel = in sync here (export thread)
1674 pthread_mutex_lock (&_freewheel_mutex);
1676 // check if we should run,
1677 if (_freewheeling != _freewheel) {
1678 if (!_freewheeling) {
1679 // prepare leaving freewheeling mode
1680 _freewheel = false; // first mark as disabled
1681 _reinit_thread_callback = true; // hand over _main_thread
1682 _freewheel_ack = false; // prepare next handshake
1683 reset_midi_parsers ();
1684 _midiio->set_enabled(true);
1685 engine.freewheel_callback (_freewheeling);
1692 if (!_freewheel || !_freewheel_ack) {
1693 // wait for a change, we use a timed wait to
1694 // terminate early in case some error sets _run = 0
1697 gettimeofday (&tv, NULL);
1698 ts.tv_sec = tv.tv_sec + 3;
1700 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1705 // tell the engine we're ready to GO.
1706 engine.freewheel_callback (_freewheeling);
1708 _main_thread = pthread_self();
1709 AudioEngine::thread_init_callback (this);
1710 _midiio->set_enabled(false);
1711 reset_midi_parsers ();
1712 coreaudio_set_realtime_policy (_main_thread);
1715 // process port updates first in every cycle.
1718 // prevent coreaudio device changes
1719 pthread_mutex_lock (&_process_callback_mutex);
1723 // clear input buffers
1724 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1725 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1727 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1728 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1731 _last_process_start = 0;
1732 if (engine.process_callback (_samples_per_period)) {
1733 pthread_mutex_unlock (&_process_callback_mutex);
1737 pthread_mutex_unlock (&_process_callback_mutex);
1739 Glib::usleep (100); // don't hog cpu
1742 pthread_mutex_unlock (&_freewheel_mutex);
1747 // engine.process_callback() returner error
1748 engine.halted_callback("CoreAudio Freehweeling aborted.");
1753 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1760 if (_run && _freewheel && !_freewheel_ack) {
1761 // acknowledge freewheeling; hand-over thread ID
1762 pthread_mutex_lock (&_freewheel_mutex);
1763 if (_freewheel) _freewheel_ack = true;
1764 pthread_cond_signal (&_freewheel_signal);
1765 pthread_mutex_unlock (&_freewheel_mutex);
1768 if (!_run || _freewheel || _preinit) {
1769 // NB if we return 1, the output is
1770 // zeroed by the coreaudio callback
1774 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1775 _reinit_thread_callback = false;
1776 _main_thread = pthread_self();
1777 AudioEngine::thread_init_callback (this);
1778 coreaudio_set_realtime_policy (_main_thread);
1781 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1782 // block while devices are added/removed
1784 printf("Xrun due to device change\n");
1789 /* port-connection change */
1792 // cycle-length in usec
1793 const double nominal_time = 1e6 * n_samples / _samplerate;
1795 clock1 = g_get_monotonic_time();
1799 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1800 CoreMidiPort* port = dynamic_cast<CoreMidiPort*> (*it);
1805 uint8_t data[128]; // matches CoreMidi's MIDIPacket
1806 size_t size = sizeof(data);
1808 port->clear_events ();
1810 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1811 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1812 assert (time < n_samples);
1813 port->parse_events (time, data, size);
1814 size = sizeof(data); /* prepare for next call to recv_event */
1820 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1821 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1824 /* clear output buffers */
1825 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1826 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1829 _midiio->start_cycle();
1830 _last_process_start = host_time;
1832 if (engine.process_callback (n_samples)) {
1833 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1834 //_pcmio->pcm_stop ();
1836 pthread_mutex_unlock (&_process_callback_mutex);
1841 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1842 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1845 /* queue outgoing midi */
1847 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1848 #if 0 // something's still b0rked with CoreMidiIo::send_events()
1849 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1850 _midiio->send_events (i, nominal_time, (void*)src);
1852 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1853 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1854 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1859 /* write back audio */
1861 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1862 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1865 _processed_samples += n_samples;
1867 /* calc DSP load. */
1868 _dsp_load_calc.set_max_time (_samplerate, _samples_per_period);
1869 _dsp_load_calc.set_start_timestamp_us (clock1);
1870 _dsp_load_calc.set_stop_timestamp_us (g_get_monotonic_time());
1871 _dsp_load = _dsp_load_calc.get_dsp_load ();
1873 pthread_mutex_unlock (&_process_callback_mutex);
1878 CoreAudioBackend::error_callback ()
1880 _pcmio->set_error_callback (NULL, NULL);
1881 _pcmio->set_sample_rate_callback (NULL, NULL);
1882 _pcmio->set_xrun_callback (NULL, NULL);
1883 _midiio->set_port_changed_callback(NULL, NULL);
1884 engine.halted_callback("CoreAudio Process aborted.");
1889 CoreAudioBackend::xrun_callback ()
1895 CoreAudioBackend::buffer_size_callback ()
1897 uint32_t bs = _pcmio->samples_per_period();
1898 if (bs == _samples_per_period) {
1901 _samples_per_period = bs;
1902 engine.buffer_size_change (_samples_per_period);
1906 CoreAudioBackend::sample_rate_callback ()
1910 printf("Samplerate change during initialization.\n");
1914 _pcmio->set_error_callback (NULL, NULL);
1915 _pcmio->set_sample_rate_callback (NULL, NULL);
1916 _pcmio->set_xrun_callback (NULL, NULL);
1917 _midiio->set_port_changed_callback(NULL, NULL);
1918 engine.halted_callback("Sample Rate Changed.");
1923 CoreAudioBackend::hw_changed_callback ()
1925 _reinit_thread_callback = true;
1926 engine.request_device_list_update();
1929 /******************************************************************************/
1931 static boost::shared_ptr<CoreAudioBackend> _instance;
1933 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1934 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1935 static int deinstantiate ();
1936 static bool already_configured ();
1937 static bool available ();
1939 static ARDOUR::AudioBackendInfo _descriptor = {
1948 static boost::shared_ptr<AudioBackend>
1949 backend_factory (AudioEngine& e)
1952 _instance.reset (new CoreAudioBackend (e, _descriptor));
1958 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1960 s_instance_name = arg1;
1972 already_configured ()
1983 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1985 return &_descriptor;
1989 /******************************************************************************/
1990 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1995 _capture_latency_range.min = 0;
1996 _capture_latency_range.max = 0;
1997 _playback_latency_range.min = 0;
1998 _playback_latency_range.max = 0;
2001 CoreBackendPort::~CoreBackendPort () {
2006 int CoreBackendPort::connect (CoreBackendPort *port)
2009 PBD::warning << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
2013 if (type () != port->type ()) {
2014 PBD::warning << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
2018 if (is_output () && port->is_output ()) {
2019 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
2023 if (is_input () && port->is_input ()) {
2024 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
2029 PBD::warning << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
2033 if (is_connected (port)) {
2034 #if 0 // don't bother to warn about this for now. just ignore it
2035 PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
2036 << " (" << name () << ") -> (" << port->name () << ")"
2042 _connect (port, true);
2047 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
2049 _connections.insert (port);
2051 port->_connect (this, false);
2052 _osx_backend.port_connect_callback (name(), port->name(), true);
2056 int CoreBackendPort::disconnect (CoreBackendPort *port)
2059 PBD::warning << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
2063 if (!is_connected (port)) {
2064 PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
2065 << " (" << name () << ") -> (" << port->name () << ")"
2069 _disconnect (port, true);
2073 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2075 std::set<CoreBackendPort*>::iterator it = _connections.find (port);
2076 assert (it != _connections.end ());
2077 _connections.erase (it);
2079 port->_disconnect (this, false);
2080 _osx_backend.port_connect_callback (name(), port->name(), false);
2085 void CoreBackendPort::disconnect_all ()
2087 while (!_connections.empty ()) {
2088 std::set<CoreBackendPort*>::iterator it = _connections.begin ();
2089 (*it)->_disconnect (this, false);
2090 _osx_backend.port_connect_callback (name(), (*it)->name(), false);
2091 _connections.erase (it);
2096 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2098 return _connections.find (const_cast<CoreBackendPort *>(port)) != _connections.end ();
2101 bool CoreBackendPort::is_physically_connected () const
2103 for (std::set<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2104 if ((*it)->is_physical ()) {
2111 /******************************************************************************/
2113 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2114 : CoreBackendPort (b, name, flags)
2116 memset (_buffer, 0, sizeof (_buffer));
2117 mlock(_buffer, sizeof (_buffer));
2120 CoreAudioPort::~CoreAudioPort () { }
2122 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2125 const std::set<CoreBackendPort *>& connections = get_connections ();
2126 std::set<CoreBackendPort*>::const_iterator it = connections.begin ();
2127 if (it == connections.end ()) {
2128 memset (_buffer, 0, n_samples * sizeof (Sample));
2130 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2131 assert (source && source->is_output ());
2132 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2133 while (++it != connections.end ()) {
2134 source = static_cast<const CoreAudioPort*>(*it);
2135 assert (source && source->is_output ());
2136 Sample* dst = buffer ();
2137 const Sample* src = source->const_buffer ();
2138 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2148 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2149 : CoreBackendPort (b, name, flags)
2154 , _unbuffered_bytes(0)
2156 , _expected_bytes(0)
2160 _buffer[0].clear ();
2161 _buffer[1].clear ();
2164 CoreMidiPort::~CoreMidiPort () { }
2166 struct MidiEventSorter {
2167 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
2172 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2175 (_buffer[_bufperiod]).clear ();
2176 const std::set<CoreBackendPort*>& connections = get_connections ();
2177 for (std::set<CoreBackendPort*>::const_iterator i = connections.begin ();
2178 i != connections.end ();
2180 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2181 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2182 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
2185 std::stable_sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2188 return &(_buffer[_bufperiod]);
2192 CoreMidiPort::queue_event (
2194 pframes_t timestamp,
2195 const uint8_t* buffer, size_t size)
2197 const int ret = CoreAudioBackend::_midi_event_put (port_buffer, timestamp, buffer, size);
2198 if (!ret) { /* success */
2199 _event._pending = false;
2205 CoreMidiPort::reset_parser ()
2207 _event._pending = false;
2209 _unbuffered_bytes = 0;
2211 _expected_bytes = 0;
2216 CoreMidiPort::clear_events ()
2218 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2223 CoreMidiPort::parse_events (const uint64_t time, const uint8_t *data, const size_t size)
2225 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2227 if (_event._pending) {
2228 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2233 for (size_t i = 0; i < size; ++i) {
2234 if (_first_time && !(data[i] & 0x80)) {
2238 _first_time = false;
2240 if (process_byte(time, data[i])) {
2241 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2248 // based on JackMidiRawInputWriteQueue by Devin Anderson //
2250 CoreMidiPort::process_byte(const uint64_t time, const uint8_t byte)
2257 _parser_buffer[0] = byte;
2258 prepare_byte_event(time, byte);
2263 if (_status_byte == 0xf0) {
2265 return prepare_buffered_event(time);
2268 _unbuffered_bytes = 0;
2269 _expected_bytes = 0;
2274 // Non-realtime status byte
2276 printf ("CoreMidiPort: discarded bogus midi message\n");
2278 for (size_t i=0; i < _total_bytes; ++i) {
2279 printf("%02x ", _parser_buffer[i]);
2284 _unbuffered_bytes = 0;
2286 _status_byte = byte;
2287 switch (byte & 0xf0) {
2293 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
2294 _expected_bytes = 3;
2298 // Program Change, Channel Pressure
2299 _expected_bytes = 2;
2305 _expected_bytes = 0;
2309 // MTC Quarter Frame, Song Select
2310 _expected_bytes = 2;
2314 _expected_bytes = 3;
2319 _expected_bytes = 0;
2324 prepare_byte_event(time, byte);
2325 _expected_bytes = 0;
2334 if (! _status_byte) {
2335 // Data bytes without a status will be discarded.
2337 _unbuffered_bytes++;
2340 if (! _total_bytes) {
2341 record_byte(_status_byte);
2344 return (_total_bytes == _expected_bytes) ? prepare_buffered_event(time) : false;
2348 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2350 , _timestamp (timestamp)
2354 _data = (uint8_t*) malloc (size);
2355 memcpy (_data, data, size);
2359 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2360 : _size (other.size ())
2361 , _timestamp (other.timestamp ())
2364 if (other.size () && other.const_data ()) {
2365 _data = (uint8_t*) malloc (other.size ());
2366 memcpy (_data, other.const_data (), other.size ());
2370 CoreMidiEvent::~CoreMidiEvent () {