2 * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
3 * Copyright (C) 2013 Paul Davis
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include "coreaudio_backend.h"
27 #include "rt_thread.h"
29 #include "pbd/compose.h"
30 #include "pbd/error.h"
31 #include "pbd/file_utils.h"
32 #include "ardour/filesystem_paths.h"
33 #include "ardour/port_manager.h"
36 using namespace ARDOUR;
38 static std::string s_instance_name;
39 size_t CoreAudioBackend::_max_buffer_size = 8192;
40 std::vector<std::string> CoreAudioBackend::_midi_options;
41 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
42 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
43 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
46 /* static class instance access */
47 static void hw_changed_callback_ptr (void *arg)
49 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
50 d->hw_changed_callback();
53 static void error_callback_ptr (void *arg)
55 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
59 static void xrun_callback_ptr (void *arg)
61 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
65 static void buffer_size_callback_ptr (void *arg)
67 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
68 d->buffer_size_callback();
71 static void sample_rate_callback_ptr (void *arg)
73 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
74 d->sample_rate_callback();
77 static void midi_port_change (void *arg)
79 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
80 d->coremidi_rediscover ();
84 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
85 : AudioBackend (e, info)
89 , _freewheeling (false)
91 , _freewheel_ack (false)
92 , _reinit_thread_callback (false)
93 , _measure_latency (false)
94 , _last_process_start (0)
95 , _input_audio_device("")
96 , _output_audio_device("")
97 , _midi_driver_option(get_standard_device_name(DeviceNone))
99 , _samples_per_period (1024)
102 , _systemic_audio_input_latency (0)
103 , _systemic_audio_output_latency (0)
105 , _processed_samples (0)
106 , _port_change_flag (false)
108 _instance_name = s_instance_name;
109 pthread_mutex_init (&_port_callback_mutex, 0);
110 pthread_mutex_init (&_process_callback_mutex, 0);
111 pthread_mutex_init (&_freewheel_mutex, 0);
112 pthread_cond_init (&_freewheel_signal, 0);
114 _pcmio = new CoreAudioPCM ();
115 _midiio = new CoreMidiIo ();
117 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
121 CoreAudioBackend::~CoreAudioBackend ()
123 delete _pcmio; _pcmio = 0;
124 delete _midiio; _midiio = 0;
125 pthread_mutex_destroy (&_port_callback_mutex);
126 pthread_mutex_destroy (&_process_callback_mutex);
127 pthread_mutex_destroy (&_freewheel_mutex);
128 pthread_cond_destroy (&_freewheel_signal);
131 /* AUDIOBACKEND API */
134 CoreAudioBackend::name () const
136 return X_("CoreAudio");
140 CoreAudioBackend::is_realtime () const
145 std::vector<AudioBackend::DeviceStatus>
146 CoreAudioBackend::enumerate_devices () const
148 _duplex_audio_device_status.clear();
149 std::map<size_t, std::string> devices;
150 _pcmio->duplex_device_list(devices);
152 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
153 if (_input_audio_device == "") _input_audio_device = i->second;
154 if (_output_audio_device == "") _output_audio_device = i->second;
155 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
157 return _duplex_audio_device_status;
160 std::vector<AudioBackend::DeviceStatus>
161 CoreAudioBackend::enumerate_input_devices () const
163 _input_audio_device_status.clear();
164 std::map<size_t, std::string> devices;
165 _pcmio->input_device_list(devices);
167 _input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
168 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
169 if (_input_audio_device == "") _input_audio_device = i->second;
170 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
172 return _input_audio_device_status;
176 std::vector<AudioBackend::DeviceStatus>
177 CoreAudioBackend::enumerate_output_devices () const
179 _output_audio_device_status.clear();
180 std::map<size_t, std::string> devices;
181 _pcmio->output_device_list(devices);
183 _output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
184 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
185 if (_output_audio_device == "") _output_audio_device = i->second;
186 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
188 return _output_audio_device_status;
192 CoreAudioBackend::available_sample_rates (const std::string& device) const
194 std::vector<float> sr;
195 _pcmio->available_sample_rates (name_to_id (device), sr);
200 CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) const
202 std::vector<float> sr;
203 std::vector<float> sr_in;
204 std::vector<float> sr_out;
206 const uint32_t inp = name_to_id (input_device, Input);
207 const uint32_t out = name_to_id (output_device, Output);
209 if (inp == UINT32_MAX && out == UINT32_MAX) {
211 } else if (inp == UINT32_MAX) {
212 _pcmio->available_sample_rates (out, sr_out);
214 } else if (out == UINT32_MAX) {
215 _pcmio->available_sample_rates (inp, sr_in);
218 _pcmio->available_sample_rates (inp, sr_in);
219 _pcmio->available_sample_rates (out, sr_out);
220 // TODO allow to use different SR per device, tweak aggregate
221 std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
226 std::vector<uint32_t>
227 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
229 std::vector<uint32_t> bs;
230 _pcmio->available_buffer_sizes (name_to_id (device), bs);
234 std::vector<uint32_t>
235 CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) const
237 std::vector<uint32_t> bs;
238 std::vector<uint32_t> bs_in;
239 std::vector<uint32_t> bs_out;
240 const uint32_t inp = name_to_id (input_device, Input);
241 const uint32_t out = name_to_id (output_device, Output);
242 if (inp == UINT32_MAX && out == UINT32_MAX) {
244 } else if (inp == UINT32_MAX) {
245 _pcmio->available_buffer_sizes (out, bs_out);
247 } else if (out == UINT32_MAX) {
248 _pcmio->available_buffer_sizes (inp, bs_in);
251 _pcmio->available_buffer_sizes (inp, bs_in);
252 _pcmio->available_buffer_sizes (out, bs_out);
253 std::set_intersection (bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
259 CoreAudioBackend::available_input_channel_count (const std::string&) const
261 return 128; // TODO query current device
265 CoreAudioBackend::available_output_channel_count (const std::string&) const
267 return 128; // TODO query current device
271 CoreAudioBackend::can_change_sample_rate_when_running () const
277 CoreAudioBackend::can_change_buffer_size_when_running () const
283 CoreAudioBackend::set_device_name (const std::string& d)
286 rv |= set_input_device_name (d);
287 rv |= set_output_device_name (d);
292 CoreAudioBackend::set_input_device_name (const std::string& d)
294 _input_audio_device = d;
295 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device, Input));
296 if (sr > 0) { set_sample_rate(sr); }
301 CoreAudioBackend::set_output_device_name (const std::string& d)
303 _output_audio_device = d;
305 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device, Output));
306 if (sr > 0) { set_sample_rate(sr); }
311 CoreAudioBackend::set_sample_rate (float sr)
313 std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_audio_device);
314 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
318 engine.sample_rate_change (sr);
323 CoreAudioBackend::set_buffer_size (uint32_t bs)
325 if (bs <= 0 || bs >= _max_buffer_size) {
328 _samples_per_period = bs;
329 _pcmio->set_samples_per_period(bs);
330 engine.buffer_size_change (bs);
335 CoreAudioBackend::set_interleaved (bool yn)
337 if (!yn) { return 0; }
342 CoreAudioBackend::set_input_channels (uint32_t cc)
349 CoreAudioBackend::set_output_channels (uint32_t cc)
356 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
358 _systemic_audio_input_latency = sl;
363 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
365 _systemic_audio_output_latency = sl;
369 /* Retrieving parameters */
371 CoreAudioBackend::device_name () const
377 CoreAudioBackend::input_device_name () const
379 return _input_audio_device;
383 CoreAudioBackend::output_device_name () const
385 return _output_audio_device;
389 CoreAudioBackend::sample_rate () const
395 CoreAudioBackend::buffer_size () const
397 return _samples_per_period;
401 CoreAudioBackend::interleaved () const
407 CoreAudioBackend::input_channels () const
413 CoreAudioBackend::output_channels () const
419 CoreAudioBackend::systemic_input_latency () const
421 return _systemic_audio_input_latency;
425 CoreAudioBackend::systemic_output_latency () const
427 return _systemic_audio_output_latency;
432 std::vector<std::string>
433 CoreAudioBackend::enumerate_midi_options () const
435 if (_midi_options.empty()) {
436 _midi_options.push_back (_("CoreMidi"));
437 _midi_options.push_back (get_standard_device_name(DeviceNone));
439 return _midi_options;
443 CoreAudioBackend::set_midi_option (const std::string& opt)
445 if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
448 _midi_driver_option = opt;
453 CoreAudioBackend::midi_option () const
455 return _midi_driver_option;
459 CoreAudioBackend::launch_control_app ()
461 if (name_to_id (_input_audio_device) != UINT32_MAX) {
462 _pcmio->launch_control_app(name_to_id(_input_audio_device, Input));
464 if (name_to_id (_output_audio_device) != UINT32_MAX) {
465 _pcmio->launch_control_app(name_to_id(_output_audio_device, Output));
471 static void * pthread_freewheel (void *arg)
473 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
474 d->freewheel_thread ();
479 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
481 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
482 return d->process_callback(n_samples, host_time);
486 CoreAudioBackend::_start (bool for_latency_measurement)
488 AudioBackend::ErrorCode error_code = NoError;
490 if ((!_active_ca || !_active_fw) && _run) {
491 // recover from 'halted', reap threads
495 if (_active_ca || _active_fw || _run) {
496 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
497 return BackendReinitializationError;
500 if (_ports.size () || _portmap.size ()) {
501 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
502 _system_inputs.clear();
503 _system_outputs.clear();
504 _system_midi_in.clear();
505 _system_midi_out.clear();
510 uint32_t device1 = name_to_id(_input_audio_device, Input);
511 uint32_t device2 = name_to_id(_output_audio_device, Output);
513 assert(_active_ca == false);
514 assert(_active_fw == false);
516 _freewheel_ack = false;
517 _reinit_thread_callback = true;
518 _last_process_start = 0;
520 _pcmio->set_error_callback (error_callback_ptr, this);
521 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
522 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
524 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
526 printf("STATE: %d\n", _pcmio->state ());
528 switch (_pcmio->state ()) {
532 PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
533 error_code = AudioDeviceInvalidError;
536 PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
537 error_code = AudioDeviceNotAvailableError;
540 PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
541 error_code = AudioDeviceOpenError;
544 PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
545 error_code = SampleRateNotSupportedError;
548 PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
549 error_code = PeriodSizeNotSupportedError;
552 PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
553 error_code = SampleFormatNotSupportedError;
556 PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
557 error_code = BackendInitializationError; // XXX
560 PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
561 error_code = OutOfMemoryError;
564 PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
565 error_code = BackendInitializationError; // XXX
568 PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
569 error_code = AudioDeviceIOError;
572 PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
573 error_code = PeriodSizeNotSupportedError;
576 PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
577 error_code = DeviceConfigurationNotSupportedError;
580 PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
581 error_code = BackendInitializationError;
584 if (_pcmio->state ()) {
588 if (_n_outputs != _pcmio->n_playback_channels ()) {
589 if (_n_outputs == 0) {
590 _n_outputs = _pcmio->n_playback_channels ();
592 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
594 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
597 if (_n_inputs != _pcmio->n_capture_channels ()) {
598 if (_n_inputs == 0) {
599 _n_inputs = _pcmio->n_capture_channels ();
601 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
603 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
606 if (_pcmio->samples_per_period() != _samples_per_period) {
607 _samples_per_period = _pcmio->samples_per_period();
608 PBD::warning << _("CoreAudioBackend: samples per period does not match.") << endmsg;
611 if (_pcmio->sample_rate() != _samplerate) {
612 _samplerate = _pcmio->sample_rate();
613 engine.sample_rate_change (_samplerate);
614 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
617 _measure_latency = for_latency_measurement;
621 _port_change_flag = false;
623 if (_midi_driver_option == _("CoreMidi")) {
624 _midiio->set_enabled(true);
625 _midiio->set_port_changed_callback(midi_port_change, this);
626 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
629 if (register_system_audio_ports()) {
630 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
632 return PortRegistrationError;
635 engine.sample_rate_change (_samplerate);
636 engine.buffer_size_change (_samples_per_period);
638 if (engine.reestablish_ports ()) {
639 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
641 return PortReconnectError;
644 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
646 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
647 delete _pcmio; _pcmio = 0;
649 return ProcessThreadStartError;
653 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
656 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
660 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
666 return FreewheelThreadStartError;
670 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
673 return ProcessThreadStartError;
676 engine.reconnect_ports ();
678 // force an initial registration_callback() & latency re-compute
679 _port_change_flag = true;
683 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
690 CoreAudioBackend::stop ()
699 _midiio->set_port_changed_callback(NULL, NULL);
702 pthread_mutex_lock (&_freewheel_mutex);
703 pthread_cond_signal (&_freewheel_signal);
704 pthread_mutex_unlock (&_freewheel_mutex);
706 if (pthread_join (_freeewheel_thread, &status)) {
707 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
714 _active_fw = false; // ??
720 CoreAudioBackend::freewheel (bool onoff)
722 if (onoff == _freewheeling) {
725 _freewheeling = onoff;
726 // wake up freewheeling thread
727 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
728 pthread_cond_signal (&_freewheel_signal);
729 pthread_mutex_unlock (&_freewheel_mutex);
735 CoreAudioBackend::dsp_load () const
737 return 100.f * _dsp_load;
741 CoreAudioBackend::raw_buffer_size (DataType t)
744 case DataType::AUDIO:
745 return _samples_per_period * sizeof(Sample);
747 return _max_buffer_size; // XXX not really limited
754 CoreAudioBackend::sample_time ()
756 return _processed_samples;
760 CoreAudioBackend::sample_time_at_cycle_start ()
762 return _processed_samples;
766 CoreAudioBackend::samples_since_cycle_start ()
768 if (!_active_ca || !_run || _freewheeling || _freewheel) {
771 if (_last_process_start == 0) {
775 const uint64_t now = AudioGetCurrentHostTime ();
776 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
777 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
781 CoreAudioBackend::name_to_id(std::string device_name, DeviceFilter filter) const {
782 uint32_t device_id = UINT32_MAX;
783 std::map<size_t, std::string> devices;
786 _pcmio->input_device_list (devices);
789 _pcmio->output_device_list (devices);
792 _pcmio->duplex_device_list (devices);
796 _pcmio->device_list (devices);
800 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
801 if (i->second == device_name) {
802 device_id = i->first;
810 CoreAudioBackend::coreaudio_process_thread (void *arg)
812 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
813 boost::function<void ()> f = td->f;
820 CoreAudioBackend::create_process_thread (boost::function<void()> func)
824 size_t stacksize = 100000;
826 ThreadData* td = new ThreadData (this, func, stacksize);
828 if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
829 &thread_id, coreaudio_process_thread, td)) {
830 pthread_attr_init (&attr);
831 pthread_attr_setstacksize (&attr, stacksize);
832 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
833 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
834 pthread_attr_destroy (&attr);
837 PBD::warning << _("AudioEngine: process thread failed to acquire realtime permissions.") << endmsg;
838 pthread_attr_destroy (&attr);
841 _threads.push_back (thread_id);
846 CoreAudioBackend::join_process_threads ()
850 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
853 if (pthread_join (*i, &status)) {
854 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
863 CoreAudioBackend::in_process_thread ()
865 if (pthread_equal (_main_thread, pthread_self()) != 0) {
869 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
871 if (pthread_equal (*i, pthread_self ()) != 0) {
879 CoreAudioBackend::process_thread_count ()
881 return _threads.size ();
885 CoreAudioBackend::update_latencies ()
887 // trigger latency callback in RT thread (locked graph)
888 port_connect_add_remove_callback();
894 CoreAudioBackend::private_handle () const
900 CoreAudioBackend::my_name () const
902 return _instance_name;
906 CoreAudioBackend::available () const
908 return _run && _active_fw && _active_ca;
912 CoreAudioBackend::port_name_size () const
918 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
920 std::string newname (_instance_name + ":" + name);
921 if (!valid_port (port)) {
922 PBD::warning << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
925 if (find_port (newname)) {
926 PBD::error << _("CoreAudioBackend::set_port_name: Port with given name already exists") << endmsg;
930 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
931 _portmap.erase (p->name());
932 _portmap.insert (make_pair (newname, p));
933 return p->set_name (newname);
937 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
939 if (!valid_port (port)) {
940 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
941 return std::string ();
943 return static_cast<CoreBackendPort*>(port)->name ();
947 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
949 if (!valid_port (port)) {
950 PBD::warning << _("CoreAudioBackend::get_port_property: Invalid Port(s)") << endmsg;
953 if (key == "http://jackaudio.org/metadata/pretty-name") {
955 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
956 if (!value.empty()) {
964 CoreAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
966 if (!valid_port (port)) {
967 PBD::warning << _("CoreAudioBackend::set_port_property: Invalid Port(s)") << endmsg;
970 if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
971 static_cast<CoreBackendPort*>(port)->set_pretty_name (value);
977 PortEngine::PortHandle
978 CoreAudioBackend::get_port_by_name (const std::string& name) const
980 PortHandle port = (PortHandle) find_port (name);
985 CoreAudioBackend::get_ports (
986 const std::string& port_name_pattern,
987 DataType type, PortFlags flags,
988 std::vector<std::string>& port_names) const
992 bool use_regexp = false;
993 if (port_name_pattern.size () > 0) {
994 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
999 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1000 CoreBackendPort* port = *i;
1001 if ((port->type () == type) && flags == (port->flags () & flags)) {
1002 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
1003 port_names.push_back (port->name ());
1009 regfree (&port_regex);
1015 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
1017 if (!valid_port (port)) {
1018 return DataType::NIL;
1020 return static_cast<CoreBackendPort*>(port)->type ();
1023 PortEngine::PortHandle
1024 CoreAudioBackend::register_port (
1025 const std::string& name,
1026 ARDOUR::DataType type,
1027 ARDOUR::PortFlags flags)
1029 if (name.size () == 0) { return 0; }
1030 if (flags & IsPhysical) { return 0; }
1031 return add_port (_instance_name + ":" + name, type, flags);
1034 PortEngine::PortHandle
1035 CoreAudioBackend::add_port (
1036 const std::string& name,
1037 ARDOUR::DataType type,
1038 ARDOUR::PortFlags flags)
1040 assert(name.size ());
1041 if (find_port (name)) {
1042 PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
1043 << " (" << name << ")" << endmsg;
1046 CoreBackendPort* port = NULL;
1048 case DataType::AUDIO:
1049 port = new CoreAudioPort (*this, name, flags);
1051 case DataType::MIDI:
1052 port = new CoreMidiPort (*this, name, flags);
1055 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
1059 _ports.insert (port);
1060 _portmap.insert (make_pair (name, port));
1066 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
1071 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
1072 PortIndex::iterator i = std::find (_ports.begin(), _ports.end(), static_cast<CoreBackendPort*>(port_handle));
1073 if (i == _ports.end ()) {
1074 PBD::warning << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
1077 disconnect_all(port_handle);
1078 _portmap.erase (port->name());
1084 CoreAudioBackend::register_system_audio_ports()
1088 const uint32_t a_ins = _n_inputs;
1089 const uint32_t a_out = _n_outputs;
1091 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device, Input), true);
1092 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device, Output), false);
1095 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1096 coreaudio_reported_input_latency,
1097 coreaudio_reported_output_latency);
1101 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1102 for (uint32_t i = 0; i < a_ins; ++i) {
1104 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1105 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1107 set_latency_range (p, false, lr);
1108 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1109 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1110 _system_inputs.push_back(cp);
1113 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1114 for (uint32_t i = 0; i < a_out; ++i) {
1116 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1117 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1119 set_latency_range (p, true, lr);
1120 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1121 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1122 _system_outputs.push_back(cp);
1128 CoreAudioBackend::coremidi_rediscover()
1130 if (!_run) { return; }
1131 assert(_midi_driver_option == _("CoreMidi"));
1133 pthread_mutex_lock (&_process_callback_mutex);
1135 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1137 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1138 if ((*it)->name() == _midiio->port_id(i, false)) {
1147 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1149 _port_change_flag = true;
1150 unregister_port((*it));
1151 it = _system_midi_out.erase(it);
1155 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1157 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1158 if ((*it)->name() == _midiio->port_id(i, true)) {
1167 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1169 _port_change_flag = true;
1170 unregister_port((*it));
1171 it = _system_midi_in.erase(it);
1175 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1176 std::string name = _midiio->port_id(i, true);
1177 if (find_port_in(_system_midi_in, name)) {
1182 printf("register MIDI Input: %s\n", name.c_str());
1184 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1186 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1190 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1191 set_latency_range (p, false, lr);
1192 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1193 pp->set_pretty_name(_midiio->port_name(i, true));
1194 _system_midi_in.push_back(pp);
1195 _port_change_flag = true;
1198 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1199 std::string name = _midiio->port_id(i, false);
1200 if (find_port_in(_system_midi_out, name)) {
1205 printf("register MIDI OUT: %s\n", name.c_str());
1207 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1209 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1213 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1214 set_latency_range (p, false, lr);
1215 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1216 pp->set_pretty_name(_midiio->port_name(i, false));
1217 _system_midi_out.push_back(pp);
1218 _port_change_flag = true;
1222 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1223 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1225 pthread_mutex_unlock (&_process_callback_mutex);
1229 CoreAudioBackend::unregister_ports (bool system_only)
1231 _system_inputs.clear();
1232 _system_outputs.clear();
1233 _system_midi_in.clear();
1234 _system_midi_out.clear();
1236 for (PortIndex::iterator i = _ports.begin (); i != _ports.end ();) {
1237 PortIndex::iterator cur = i++;
1238 CoreBackendPort* port = *cur;
1239 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1240 port->disconnect_all ();
1241 _portmap.erase (port->name());
1249 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1251 CoreBackendPort* src_port = find_port (src);
1252 CoreBackendPort* dst_port = find_port (dst);
1255 PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
1256 << " (" << src <<")" << endmsg;
1260 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
1261 << " (" << dst <<")" << endmsg;
1264 return src_port->connect (dst_port);
1268 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1270 CoreBackendPort* src_port = find_port (src);
1271 CoreBackendPort* dst_port = find_port (dst);
1273 if (!src_port || !dst_port) {
1274 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1277 return src_port->disconnect (dst_port);
1281 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1283 CoreBackendPort* dst_port = find_port (dst);
1284 if (!valid_port (src)) {
1285 PBD::warning << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1289 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
1290 << " (" << dst << ")" << endmsg;
1293 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1297 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1299 CoreBackendPort* dst_port = find_port (dst);
1300 if (!valid_port (src) || !dst_port) {
1301 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1304 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1308 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1310 if (!valid_port (port)) {
1311 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1314 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1319 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1321 if (!valid_port (port)) {
1322 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1325 return static_cast<CoreBackendPort*>(port)->is_connected ();
1329 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1331 CoreBackendPort* dst_port = find_port (dst);
1333 if (!valid_port (src) || !dst_port) {
1334 PBD::warning << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1338 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1342 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1344 if (!valid_port (port)) {
1345 PBD::warning << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1348 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1352 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1354 if (!valid_port (port)) {
1355 PBD::warning << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1359 assert (0 == names.size ());
1361 const std::set<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1363 for (std::set<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1364 names.push_back ((*i)->name ());
1367 return (int)names.size ();
1372 CoreAudioBackend::midi_event_get (
1373 pframes_t& timestamp,
1374 size_t& size, uint8_t** buf, void* port_buffer,
1375 uint32_t event_index)
1377 if (!buf || !port_buffer) return -1;
1378 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1379 if (event_index >= source.size ()) {
1382 CoreMidiEvent * const event = source[event_index].get ();
1384 timestamp = event->timestamp ();
1385 size = event->size ();
1386 *buf = event->data ();
1391 CoreAudioBackend::_midi_event_put (
1393 pframes_t timestamp,
1394 const uint8_t* buffer, size_t size)
1396 if (!buffer || !port_buffer) return -1;
1397 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1398 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1400 // nevermind, ::get_buffer() sorts events
1401 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1402 (pframes_t)dst.back ()->timestamp (), timestamp);
1405 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1411 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1413 if (!port_buffer) return 0;
1414 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1418 CoreAudioBackend::midi_clear (void* port_buffer)
1420 if (!port_buffer) return;
1421 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1429 CoreAudioBackend::can_monitor_input () const
1435 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1441 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1447 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1452 /* Latency management */
1455 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1457 if (!valid_port (port)) {
1458 PBD::warning << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1461 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1465 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1468 if (!valid_port (port)) {
1469 PBD::warning << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1474 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1477 r = p->latency_range (for_playback);
1478 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1479 if (p->is_input() && for_playback) {
1480 r.min += _samples_per_period;
1481 r.max += _samples_per_period;
1483 if (p->is_output() && !for_playback) {
1484 r.min += _samples_per_period;
1485 r.max += _samples_per_period;
1491 /* Discovering physical ports */
1494 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1496 if (!valid_port (port)) {
1497 PBD::warning << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1500 return static_cast<CoreBackendPort*>(port)->is_physical ();
1504 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1506 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1507 CoreBackendPort* port = *i;
1508 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1509 port_names.push_back (port->name ());
1515 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1517 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1518 CoreBackendPort* port = *i;
1519 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1520 port_names.push_back (port->name ());
1526 CoreAudioBackend::n_physical_outputs () const
1530 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1531 CoreBackendPort* port = *i;
1532 if (port->is_output () && port->is_physical ()) {
1533 switch (port->type ()) {
1534 case DataType::AUDIO: ++n_audio; break;
1535 case DataType::MIDI: ++n_midi; break;
1541 cc.set (DataType::AUDIO, n_audio);
1542 cc.set (DataType::MIDI, n_midi);
1547 CoreAudioBackend::n_physical_inputs () const
1551 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1552 CoreBackendPort* port = *i;
1553 if (port->is_input () && port->is_physical ()) {
1554 switch (port->type ()) {
1555 case DataType::AUDIO: ++n_audio; break;
1556 case DataType::MIDI: ++n_midi; break;
1562 cc.set (DataType::AUDIO, n_audio);
1563 cc.set (DataType::MIDI, n_midi);
1567 /* Getting access to the data buffer for a port */
1570 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1573 assert (valid_port (port));
1574 if (!port || !valid_port (port)) return NULL; // XXX remove me
1575 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1579 CoreAudioBackend::pre_process ()
1581 bool connections_changed = false;
1582 bool ports_changed = false;
1583 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1584 if (_port_change_flag) {
1585 ports_changed = true;
1586 _port_change_flag = false;
1588 if (!_port_connection_queue.empty ()) {
1589 connections_changed = true;
1591 while (!_port_connection_queue.empty ()) {
1592 PortConnectData *c = _port_connection_queue.back ();
1593 manager.connect_callback (c->a, c->b, c->c);
1594 _port_connection_queue.pop_back ();
1597 pthread_mutex_unlock (&_port_callback_mutex);
1599 if (ports_changed) {
1600 manager.registration_callback();
1602 if (connections_changed) {
1603 manager.graph_order_callback();
1605 if (connections_changed || ports_changed) {
1606 engine.latency_callback(false);
1607 engine.latency_callback(true);
1612 CoreAudioBackend::reset_midi_parsers ()
1614 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1615 CoreMidiPort* port = dynamic_cast<CoreMidiPort*>(*it);
1617 port->reset_parser ();
1623 CoreAudioBackend::freewheel_thread ()
1626 bool first_run = false;
1627 /* Freewheeling - use for export. The first call to
1628 * engine.process_callback() after engine.freewheel_callback will
1629 * if the first export cycle.
1630 * For reliable precise export timing, the calls need to be in sync.
1632 * Furthermore we need to make sure the registered process thread
1635 * _freewheeling = GUI thread state as set by ::freewheel()
1636 * _freewheel = in sync here (export thread)
1638 pthread_mutex_lock (&_freewheel_mutex);
1640 // check if we should run,
1641 if (_freewheeling != _freewheel) {
1642 if (!_freewheeling) {
1643 // prepare leaving freewheeling mode
1644 _freewheel = false; // first mark as disabled
1645 _reinit_thread_callback = true; // hand over _main_thread
1646 _freewheel_ack = false; // prepare next handshake
1647 reset_midi_parsers ();
1648 _midiio->set_enabled(true);
1649 engine.freewheel_callback (_freewheeling);
1656 if (!_freewheel || !_freewheel_ack) {
1657 // wait for a change, we use a timed wait to
1658 // terminate early in case some error sets _run = 0
1661 gettimeofday (&tv, NULL);
1662 ts.tv_sec = tv.tv_sec + 3;
1664 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1669 // tell the engine we're ready to GO.
1670 engine.freewheel_callback (_freewheeling);
1672 _main_thread = pthread_self();
1673 AudioEngine::thread_init_callback (this);
1674 _midiio->set_enabled(false);
1675 reset_midi_parsers ();
1678 // process port updates first in every cycle.
1681 // prevent coreaudio device changes
1682 pthread_mutex_lock (&_process_callback_mutex);
1686 // clear input buffers
1687 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1688 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1690 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1691 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1694 _last_process_start = 0;
1695 if (engine.process_callback (_samples_per_period)) {
1696 pthread_mutex_unlock (&_process_callback_mutex);
1700 pthread_mutex_unlock (&_process_callback_mutex);
1702 Glib::usleep (100); // don't hog cpu
1705 pthread_mutex_unlock (&_freewheel_mutex);
1710 // engine.process_callback() returner error
1711 engine.halted_callback("CoreAudio Freehweeling aborted.");
1716 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1723 if (_run && _freewheel && !_freewheel_ack) {
1724 // acknowledge freewheeling; hand-over thread ID
1725 pthread_mutex_lock (&_freewheel_mutex);
1726 if (_freewheel) _freewheel_ack = true;
1727 pthread_cond_signal (&_freewheel_signal);
1728 pthread_mutex_unlock (&_freewheel_mutex);
1731 if (!_run || _freewheel || _preinit) {
1732 // NB if we return 1, the output is
1733 // zeroed by the coreaudio callback
1737 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1738 _reinit_thread_callback = false;
1739 _main_thread = pthread_self();
1740 AudioEngine::thread_init_callback (this);
1743 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1744 // block while devices are added/removed
1746 printf("Xrun due to device change\n");
1751 /* port-connection change */
1754 // cycle-length in usec
1755 const double nominal_time = 1e6 * n_samples / _samplerate;
1757 clock1 = g_get_monotonic_time();
1761 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1762 CoreMidiPort* port = dynamic_cast<CoreMidiPort*> (*it);
1767 uint8_t data[128]; // matches CoreMidi's MIDIPacket
1768 size_t size = sizeof(data);
1770 port->clear_events ();
1772 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1773 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1774 assert (time < n_samples);
1775 port->parse_events (time, data, size);
1776 size = sizeof(data); /* prepare for next call to recv_event */
1782 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1783 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1786 /* clear output buffers */
1787 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1788 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1791 _midiio->start_cycle();
1792 _last_process_start = host_time;
1794 if (engine.process_callback (n_samples)) {
1795 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1796 //_pcmio->pcm_stop ();
1798 pthread_mutex_unlock (&_process_callback_mutex);
1803 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1804 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1807 /* queue outgoing midi */
1809 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1810 #if 0 // something's still b0rked with CoreMidiIo::send_events()
1811 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1812 _midiio->send_events (i, nominal_time, (void*)src);
1814 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1815 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1816 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1821 /* write back audio */
1823 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1824 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1827 _processed_samples += n_samples;
1829 /* calc DSP load. */
1830 _dsp_load_calc.set_max_time (_samplerate, _samples_per_period);
1831 _dsp_load_calc.set_start_timestamp_us (clock1);
1832 _dsp_load_calc.set_stop_timestamp_us (g_get_monotonic_time());
1833 _dsp_load = _dsp_load_calc.get_dsp_load ();
1835 pthread_mutex_unlock (&_process_callback_mutex);
1840 CoreAudioBackend::error_callback ()
1842 _pcmio->set_error_callback (NULL, NULL);
1843 _pcmio->set_sample_rate_callback (NULL, NULL);
1844 _pcmio->set_xrun_callback (NULL, NULL);
1845 _midiio->set_port_changed_callback(NULL, NULL);
1846 engine.halted_callback("CoreAudio Process aborted.");
1851 CoreAudioBackend::xrun_callback ()
1857 CoreAudioBackend::buffer_size_callback ()
1859 uint32_t bs = _pcmio->samples_per_period();
1860 if (bs == _samples_per_period) {
1863 _samples_per_period = bs;
1864 engine.buffer_size_change (_samples_per_period);
1868 CoreAudioBackend::sample_rate_callback ()
1872 printf("Samplerate change during initialization.\n");
1876 _pcmio->set_error_callback (NULL, NULL);
1877 _pcmio->set_sample_rate_callback (NULL, NULL);
1878 _pcmio->set_xrun_callback (NULL, NULL);
1879 _midiio->set_port_changed_callback(NULL, NULL);
1880 engine.halted_callback("Sample Rate Changed.");
1885 CoreAudioBackend::hw_changed_callback ()
1887 _reinit_thread_callback = true;
1888 engine.request_device_list_update();
1891 /******************************************************************************/
1893 static boost::shared_ptr<CoreAudioBackend> _instance;
1895 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1896 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1897 static int deinstantiate ();
1898 static bool already_configured ();
1899 static bool available ();
1901 static ARDOUR::AudioBackendInfo _descriptor = {
1910 static boost::shared_ptr<AudioBackend>
1911 backend_factory (AudioEngine& e)
1914 _instance.reset (new CoreAudioBackend (e, _descriptor));
1920 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1922 s_instance_name = arg1;
1934 already_configured ()
1945 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1947 return &_descriptor;
1951 /******************************************************************************/
1952 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1957 _capture_latency_range.min = 0;
1958 _capture_latency_range.max = 0;
1959 _playback_latency_range.min = 0;
1960 _playback_latency_range.max = 0;
1963 CoreBackendPort::~CoreBackendPort () {
1968 int CoreBackendPort::connect (CoreBackendPort *port)
1971 PBD::warning << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
1975 if (type () != port->type ()) {
1976 PBD::warning << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
1980 if (is_output () && port->is_output ()) {
1981 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
1985 if (is_input () && port->is_input ()) {
1986 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
1991 PBD::warning << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
1995 if (is_connected (port)) {
1996 #if 0 // don't bother to warn about this for now. just ignore it
1997 PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
1998 << " (" << name () << ") -> (" << port->name () << ")"
2004 _connect (port, true);
2009 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
2011 _connections.insert (port);
2013 port->_connect (this, false);
2014 _osx_backend.port_connect_callback (name(), port->name(), true);
2018 int CoreBackendPort::disconnect (CoreBackendPort *port)
2021 PBD::warning << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
2025 if (!is_connected (port)) {
2026 PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
2027 << " (" << name () << ") -> (" << port->name () << ")"
2031 _disconnect (port, true);
2035 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2037 std::set<CoreBackendPort*>::iterator it = _connections.find (port);
2038 assert (it != _connections.end ());
2039 _connections.erase (it);
2041 port->_disconnect (this, false);
2042 _osx_backend.port_connect_callback (name(), port->name(), false);
2047 void CoreBackendPort::disconnect_all ()
2049 while (!_connections.empty ()) {
2050 std::set<CoreBackendPort*>::iterator it = _connections.begin ();
2051 (*it)->_disconnect (this, false);
2052 _osx_backend.port_connect_callback (name(), (*it)->name(), false);
2053 _connections.erase (it);
2058 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2060 return _connections.find (const_cast<CoreBackendPort *>(port)) != _connections.end ();
2063 bool CoreBackendPort::is_physically_connected () const
2065 for (std::set<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2066 if ((*it)->is_physical ()) {
2073 /******************************************************************************/
2075 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2076 : CoreBackendPort (b, name, flags)
2078 memset (_buffer, 0, sizeof (_buffer));
2079 mlock(_buffer, sizeof (_buffer));
2082 CoreAudioPort::~CoreAudioPort () { }
2084 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2087 const std::set<CoreBackendPort *>& connections = get_connections ();
2088 std::set<CoreBackendPort*>::const_iterator it = connections.begin ();
2089 if (it == connections.end ()) {
2090 memset (_buffer, 0, n_samples * sizeof (Sample));
2092 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2093 assert (source && source->is_output ());
2094 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2095 while (++it != connections.end ()) {
2096 source = static_cast<const CoreAudioPort*>(*it);
2097 assert (source && source->is_output ());
2098 Sample* dst = buffer ();
2099 const Sample* src = source->const_buffer ();
2100 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2110 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2111 : CoreBackendPort (b, name, flags)
2116 , _unbuffered_bytes(0)
2118 , _expected_bytes(0)
2122 _buffer[0].clear ();
2123 _buffer[1].clear ();
2126 CoreMidiPort::~CoreMidiPort () { }
2128 struct MidiEventSorter {
2129 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
2134 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2137 (_buffer[_bufperiod]).clear ();
2138 const std::set<CoreBackendPort*>& connections = get_connections ();
2139 for (std::set<CoreBackendPort*>::const_iterator i = connections.begin ();
2140 i != connections.end ();
2142 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2143 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2144 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
2147 std::stable_sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2150 return &(_buffer[_bufperiod]);
2154 CoreMidiPort::queue_event (
2156 pframes_t timestamp,
2157 const uint8_t* buffer, size_t size)
2159 const int ret = CoreAudioBackend::_midi_event_put (port_buffer, timestamp, buffer, size);
2160 if (!ret) { /* success */
2161 _event._pending = false;
2167 CoreMidiPort::reset_parser ()
2169 _event._pending = false;
2171 _unbuffered_bytes = 0;
2173 _expected_bytes = 0;
2178 CoreMidiPort::clear_events ()
2180 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2185 CoreMidiPort::parse_events (const uint64_t time, const uint8_t *data, const size_t size)
2187 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2189 if (_event._pending) {
2190 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2195 for (size_t i = 0; i < size; ++i) {
2196 if (_first_time && !(data[i] & 0x80)) {
2200 _first_time = false;
2202 if (process_byte(time, data[i])) {
2203 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2210 // based on JackMidiRawInputWriteQueue by Devin Anderson //
2212 CoreMidiPort::process_byte(const uint64_t time, const uint8_t byte)
2219 _parser_buffer[0] = byte;
2220 prepare_byte_event(time, byte);
2225 if (_status_byte == 0xf0) {
2227 return prepare_buffered_event(time);
2230 _unbuffered_bytes = 0;
2231 _expected_bytes = 0;
2236 // Non-realtime status byte
2238 printf ("CoreMidiPort: discarded bogus midi message\n");
2240 for (size_t i=0; i < _total_bytes; ++i) {
2241 printf("%02x ", _parser_buffer[i]);
2246 _unbuffered_bytes = 0;
2248 _status_byte = byte;
2249 switch (byte & 0xf0) {
2255 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
2256 _expected_bytes = 3;
2260 // Program Change, Channel Pressure
2261 _expected_bytes = 2;
2267 _expected_bytes = 0;
2271 // MTC Quarter Frame, Song Select
2272 _expected_bytes = 2;
2276 _expected_bytes = 3;
2281 _expected_bytes = 0;
2286 prepare_byte_event(time, byte);
2287 _expected_bytes = 0;
2296 if (! _status_byte) {
2297 // Data bytes without a status will be discarded.
2299 _unbuffered_bytes++;
2302 if (! _total_bytes) {
2303 record_byte(_status_byte);
2306 return (_total_bytes == _expected_bytes) ? prepare_buffered_event(time) : false;
2310 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2312 , _timestamp (timestamp)
2316 _data = (uint8_t*) malloc (size);
2317 memcpy (_data, data, size);
2321 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2322 : _size (other.size ())
2323 , _timestamp (other.timestamp ())
2326 if (other.size () && other.const_data ()) {
2327 _data = (uint8_t*) malloc (other.size ());
2328 memcpy (_data, other.const_data (), other.size ());
2332 CoreMidiEvent::~CoreMidiEvent () {