2 * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
3 * Copyright (C) 2013 Paul Davis
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include "coreaudio_backend.h"
27 #include "rt_thread.h"
29 #include "pbd/compose.h"
30 #include "pbd/error.h"
31 #include "pbd/file_utils.h"
32 #include "ardour/filesystem_paths.h"
33 #include "ardour/port_manager.h"
36 using namespace ARDOUR;
38 static std::string s_instance_name;
39 size_t CoreAudioBackend::_max_buffer_size = 8192;
40 std::vector<std::string> CoreAudioBackend::_midi_options;
41 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
42 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
43 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
46 /* static class instance access */
47 static void hw_changed_callback_ptr (void *arg)
49 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
50 d->hw_changed_callback();
53 static void error_callback_ptr (void *arg)
55 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
59 static void xrun_callback_ptr (void *arg)
61 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
65 static void buffer_size_callback_ptr (void *arg)
67 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
68 d->buffer_size_callback();
71 static void sample_rate_callback_ptr (void *arg)
73 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
74 d->sample_rate_callback();
77 static void midi_port_change (void *arg)
79 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
80 d->coremidi_rediscover ();
84 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
85 : AudioBackend (e, info)
89 , _freewheeling (false)
91 , _freewheel_ack (false)
92 , _reinit_thread_callback (false)
93 , _measure_latency (false)
94 , _last_process_start (0)
95 , _input_audio_device("")
96 , _output_audio_device("")
97 , _midi_driver_option(get_standard_device_name(DeviceNone))
99 , _samples_per_period (1024)
102 , _systemic_audio_input_latency (0)
103 , _systemic_audio_output_latency (0)
105 , _processed_samples (0)
106 , _port_change_flag (false)
108 _instance_name = s_instance_name;
109 pthread_mutex_init (&_port_callback_mutex, 0);
110 pthread_mutex_init (&_process_callback_mutex, 0);
111 pthread_mutex_init (&_freewheel_mutex, 0);
112 pthread_cond_init (&_freewheel_signal, 0);
114 _pcmio = new CoreAudioPCM ();
115 _midiio = new CoreMidiIo ();
117 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
121 CoreAudioBackend::~CoreAudioBackend ()
123 delete _pcmio; _pcmio = 0;
124 delete _midiio; _midiio = 0;
125 pthread_mutex_destroy (&_port_callback_mutex);
126 pthread_mutex_destroy (&_process_callback_mutex);
127 pthread_mutex_destroy (&_freewheel_mutex);
128 pthread_cond_destroy (&_freewheel_signal);
131 /* AUDIOBACKEND API */
134 CoreAudioBackend::name () const
136 return X_("CoreAudio");
140 CoreAudioBackend::is_realtime () const
145 std::vector<AudioBackend::DeviceStatus>
146 CoreAudioBackend::enumerate_devices () const
148 _duplex_audio_device_status.clear();
149 std::map<size_t, std::string> devices;
150 _pcmio->duplex_device_list(devices);
152 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
153 if (_input_audio_device == "") _input_audio_device = i->second;
154 if (_output_audio_device == "") _output_audio_device = i->second;
155 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
157 return _duplex_audio_device_status;
160 std::vector<AudioBackend::DeviceStatus>
161 CoreAudioBackend::enumerate_input_devices () const
163 _input_audio_device_status.clear();
164 std::map<size_t, std::string> devices;
165 _pcmio->input_device_list(devices);
167 _input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
168 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
169 if (_input_audio_device == "") _input_audio_device = i->second;
170 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
172 return _input_audio_device_status;
176 std::vector<AudioBackend::DeviceStatus>
177 CoreAudioBackend::enumerate_output_devices () const
179 _output_audio_device_status.clear();
180 std::map<size_t, std::string> devices;
181 _pcmio->output_device_list(devices);
183 _output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
184 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
185 if (_output_audio_device == "") _output_audio_device = i->second;
186 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
188 return _output_audio_device_status;
192 CoreAudioBackend::available_sample_rates (const std::string& device) const
194 std::vector<float> sr;
195 _pcmio->available_sample_rates (name_to_id (device), sr);
200 CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) const
202 std::vector<float> sr;
203 std::vector<float> sr_in;
204 std::vector<float> sr_out;
206 const uint32_t inp = name_to_id (input_device);
207 const uint32_t out = name_to_id (output_device);
209 if (inp == UINT32_MAX && out == UINT32_MAX) {
211 } else if (inp == UINT32_MAX) {
212 _pcmio->available_sample_rates (out, sr_out);
214 } else if (out == UINT32_MAX) {
215 _pcmio->available_sample_rates (inp, sr_in);
218 _pcmio->available_sample_rates (inp, sr_in);
219 _pcmio->available_sample_rates (out, sr_out);
220 // TODO allow to use different SR per device, tweak aggregate
221 std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
226 std::vector<uint32_t>
227 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
229 std::vector<uint32_t> bs;
230 _pcmio->available_buffer_sizes (name_to_id (device), bs);
234 std::vector<uint32_t>
235 CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) const
237 std::vector<uint32_t> bs;
238 std::vector<uint32_t> bs_in;
239 std::vector<uint32_t> bs_out;
240 const uint32_t inp = name_to_id (input_device);
241 const uint32_t out = name_to_id (output_device);
242 if (inp == UINT32_MAX && out == UINT32_MAX) {
244 } else if (inp == UINT32_MAX) {
245 _pcmio->available_buffer_sizes (out, bs_out);
247 } else if (out == UINT32_MAX) {
248 _pcmio->available_buffer_sizes (inp, bs_in);
251 _pcmio->available_buffer_sizes (inp, bs_in);
252 _pcmio->available_buffer_sizes (out, bs_out);
253 std::set_intersection (bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
259 CoreAudioBackend::available_input_channel_count (const std::string&) const
261 return 128; // TODO query current device
265 CoreAudioBackend::available_output_channel_count (const std::string&) const
267 return 128; // TODO query current device
271 CoreAudioBackend::can_change_sample_rate_when_running () const
277 CoreAudioBackend::can_change_buffer_size_when_running () const
283 CoreAudioBackend::set_device_name (const std::string& d)
286 rv |= set_input_device_name (d);
287 rv |= set_output_device_name (d);
292 CoreAudioBackend::set_input_device_name (const std::string& d)
294 _input_audio_device = d;
295 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device));
296 if (sr > 0) { set_sample_rate(sr); }
301 CoreAudioBackend::set_output_device_name (const std::string& d)
303 _output_audio_device = d;
305 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device));
306 if (sr > 0) { set_sample_rate(sr); }
311 CoreAudioBackend::set_sample_rate (float sr)
313 std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_audio_device);
314 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
318 engine.sample_rate_change (sr);
323 CoreAudioBackend::set_buffer_size (uint32_t bs)
325 if (bs <= 0 || bs >= _max_buffer_size) {
328 _samples_per_period = bs;
329 _pcmio->set_samples_per_period(bs);
330 engine.buffer_size_change (bs);
335 CoreAudioBackend::set_interleaved (bool yn)
337 if (!yn) { return 0; }
342 CoreAudioBackend::set_input_channels (uint32_t cc)
349 CoreAudioBackend::set_output_channels (uint32_t cc)
356 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
358 _systemic_audio_input_latency = sl;
363 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
365 _systemic_audio_output_latency = sl;
369 /* Retrieving parameters */
371 CoreAudioBackend::device_name () const
377 CoreAudioBackend::input_device_name () const
379 return _input_audio_device;
383 CoreAudioBackend::output_device_name () const
385 return _output_audio_device;
389 CoreAudioBackend::sample_rate () const
395 CoreAudioBackend::buffer_size () const
397 return _samples_per_period;
401 CoreAudioBackend::interleaved () const
407 CoreAudioBackend::input_channels () const
413 CoreAudioBackend::output_channels () const
419 CoreAudioBackend::systemic_input_latency () const
421 return _systemic_audio_input_latency;
425 CoreAudioBackend::systemic_output_latency () const
427 return _systemic_audio_output_latency;
432 std::vector<std::string>
433 CoreAudioBackend::enumerate_midi_options () const
435 if (_midi_options.empty()) {
436 _midi_options.push_back (_("CoreMidi"));
437 _midi_options.push_back (get_standard_device_name(DeviceNone));
439 return _midi_options;
443 CoreAudioBackend::set_midi_option (const std::string& opt)
445 if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
448 _midi_driver_option = opt;
453 CoreAudioBackend::midi_option () const
455 return _midi_driver_option;
459 CoreAudioBackend::launch_control_app ()
461 if (name_to_id (_input_audio_device) != UINT32_MAX) {
462 _pcmio->launch_control_app(name_to_id(_input_audio_device));
464 if (name_to_id (_output_audio_device) != UINT32_MAX) {
465 _pcmio->launch_control_app(name_to_id(_output_audio_device));
471 static void * pthread_freewheel (void *arg)
473 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
474 d->freewheel_thread ();
479 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
481 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
482 return d->process_callback(n_samples, host_time);
486 CoreAudioBackend::_start (bool for_latency_measurement)
488 AudioBackend::ErrorCode error_code = NoError;
490 if ((!_active_ca || !_active_fw) && _run) {
491 // recover from 'halted', reap threads
495 if (_active_ca || _active_fw || _run) {
496 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
497 return BackendReinitializationError;
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);
511 uint32_t device2 = name_to_id(_output_audio_device);
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) const {
782 uint32_t device_id = UINT32_MAX;
783 std::map<size_t, std::string> devices;
784 _pcmio->device_list(devices);
786 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
787 if (i->second == device_name) {
788 device_id = i->first;
796 CoreAudioBackend::coreaudio_process_thread (void *arg)
798 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
799 boost::function<void ()> f = td->f;
806 CoreAudioBackend::create_process_thread (boost::function<void()> func)
810 size_t stacksize = 100000;
812 ThreadData* td = new ThreadData (this, func, stacksize);
814 if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
815 &thread_id, coreaudio_process_thread, td)) {
816 pthread_attr_init (&attr);
817 pthread_attr_setstacksize (&attr, stacksize);
818 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
819 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
820 pthread_attr_destroy (&attr);
823 pthread_attr_destroy (&attr);
826 _threads.push_back (thread_id);
831 CoreAudioBackend::join_process_threads ()
835 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
838 if (pthread_join (*i, &status)) {
839 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
848 CoreAudioBackend::in_process_thread ()
850 if (pthread_equal (_main_thread, pthread_self()) != 0) {
854 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
856 if (pthread_equal (*i, pthread_self ()) != 0) {
864 CoreAudioBackend::process_thread_count ()
866 return _threads.size ();
870 CoreAudioBackend::update_latencies ()
872 // trigger latency callback in RT thread (locked graph)
873 port_connect_add_remove_callback();
879 CoreAudioBackend::private_handle () const
885 CoreAudioBackend::my_name () const
887 return _instance_name;
891 CoreAudioBackend::available () const
893 return _run && _active_fw && _active_ca;
897 CoreAudioBackend::port_name_size () const
903 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
905 std::string newname (_instance_name + ":" + name);
906 if (!valid_port (port)) {
907 PBD::warning << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
910 if (find_port (newname)) {
911 PBD::error << _("CoreAudioBackend::set_port_name: Port with given name already exists") << endmsg;
915 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
916 _portmap.erase (p->name());
917 _portmap.insert (make_pair (newname, p));
918 return p->set_name (newname);
922 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
924 if (!valid_port (port)) {
925 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
926 return std::string ();
928 return static_cast<CoreBackendPort*>(port)->name ();
932 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
934 if (!valid_port (port)) {
935 PBD::warning << _("CoreAudioBackend::get_port_property: Invalid Port(s)") << endmsg;
938 if (key == "http://jackaudio.org/metadata/pretty-name") {
940 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
941 if (!value.empty()) {
949 CoreAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
951 if (!valid_port (port)) {
952 PBD::warning << _("CoreAudioBackend::set_port_property: Invalid Port(s)") << endmsg;
955 if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
956 static_cast<CoreBackendPort*>(port)->set_pretty_name (value);
962 PortEngine::PortHandle
963 CoreAudioBackend::get_port_by_name (const std::string& name) const
965 PortHandle port = (PortHandle) find_port (name);
970 CoreAudioBackend::get_ports (
971 const std::string& port_name_pattern,
972 DataType type, PortFlags flags,
973 std::vector<std::string>& port_names) const
977 bool use_regexp = false;
978 if (port_name_pattern.size () > 0) {
979 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
984 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
985 CoreBackendPort* port = *i;
986 if ((port->type () == type) && flags == (port->flags () & flags)) {
987 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
988 port_names.push_back (port->name ());
994 regfree (&port_regex);
1000 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
1002 if (!valid_port (port)) {
1003 return DataType::NIL;
1005 return static_cast<CoreBackendPort*>(port)->type ();
1008 PortEngine::PortHandle
1009 CoreAudioBackend::register_port (
1010 const std::string& name,
1011 ARDOUR::DataType type,
1012 ARDOUR::PortFlags flags)
1014 if (name.size () == 0) { return 0; }
1015 if (flags & IsPhysical) { return 0; }
1016 return add_port (_instance_name + ":" + name, type, flags);
1019 PortEngine::PortHandle
1020 CoreAudioBackend::add_port (
1021 const std::string& name,
1022 ARDOUR::DataType type,
1023 ARDOUR::PortFlags flags)
1025 assert(name.size ());
1026 if (find_port (name)) {
1027 PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
1028 << " (" << name << ")" << endmsg;
1031 CoreBackendPort* port = NULL;
1033 case DataType::AUDIO:
1034 port = new CoreAudioPort (*this, name, flags);
1036 case DataType::MIDI:
1037 port = new CoreMidiPort (*this, name, flags);
1040 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
1044 _ports.insert (port);
1045 _portmap.insert (make_pair (name, port));
1051 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
1056 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
1057 PortIndex::iterator i = std::find (_ports.begin(), _ports.end(), static_cast<CoreBackendPort*>(port_handle));
1058 if (i == _ports.end ()) {
1059 PBD::warning << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
1062 disconnect_all(port_handle);
1063 _portmap.erase (port->name());
1069 CoreAudioBackend::register_system_audio_ports()
1073 const uint32_t a_ins = _n_inputs;
1074 const uint32_t a_out = _n_outputs;
1076 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device), true);
1077 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device), false);
1080 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1081 coreaudio_reported_input_latency,
1082 coreaudio_reported_output_latency);
1086 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1087 for (uint32_t i = 0; i < a_ins; ++i) {
1089 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1090 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1092 set_latency_range (p, false, lr);
1093 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1094 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1095 _system_inputs.push_back(cp);
1098 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1099 for (uint32_t i = 0; i < a_out; ++i) {
1101 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1102 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1104 set_latency_range (p, true, lr);
1105 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1106 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1107 _system_outputs.push_back(cp);
1113 CoreAudioBackend::coremidi_rediscover()
1115 if (!_run) { return; }
1116 assert(_midi_driver_option == _("CoreMidi"));
1118 pthread_mutex_lock (&_process_callback_mutex);
1120 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1122 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1123 if ((*it)->name() == _midiio->port_id(i, false)) {
1132 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1134 _port_change_flag = true;
1135 unregister_port((*it));
1136 it = _system_midi_out.erase(it);
1140 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1142 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1143 if ((*it)->name() == _midiio->port_id(i, true)) {
1152 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1154 _port_change_flag = true;
1155 unregister_port((*it));
1156 it = _system_midi_in.erase(it);
1160 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1161 std::string name = _midiio->port_id(i, true);
1162 if (find_port_in(_system_midi_in, name)) {
1167 printf("register MIDI Input: %s\n", name.c_str());
1169 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1171 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1175 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1176 set_latency_range (p, false, lr);
1177 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1178 pp->set_pretty_name(_midiio->port_name(i, true));
1179 _system_midi_in.push_back(pp);
1180 _port_change_flag = true;
1183 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1184 std::string name = _midiio->port_id(i, false);
1185 if (find_port_in(_system_midi_out, name)) {
1190 printf("register MIDI OUT: %s\n", name.c_str());
1192 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1194 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1198 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1199 set_latency_range (p, false, lr);
1200 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1201 pp->set_pretty_name(_midiio->port_name(i, false));
1202 _system_midi_out.push_back(pp);
1203 _port_change_flag = true;
1207 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1208 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1210 pthread_mutex_unlock (&_process_callback_mutex);
1214 CoreAudioBackend::unregister_ports (bool system_only)
1216 _system_inputs.clear();
1217 _system_outputs.clear();
1218 _system_midi_in.clear();
1219 _system_midi_out.clear();
1221 for (PortIndex::iterator i = _ports.begin (); i != _ports.end ();) {
1222 PortIndex::iterator cur = i++;
1223 CoreBackendPort* port = *cur;
1224 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1225 port->disconnect_all ();
1226 _portmap.erase (port->name());
1234 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1236 CoreBackendPort* src_port = find_port (src);
1237 CoreBackendPort* dst_port = find_port (dst);
1240 PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
1241 << " (" << src <<")" << endmsg;
1245 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
1246 << " (" << dst <<")" << endmsg;
1249 return src_port->connect (dst_port);
1253 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1255 CoreBackendPort* src_port = find_port (src);
1256 CoreBackendPort* dst_port = find_port (dst);
1258 if (!src_port || !dst_port) {
1259 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1262 return src_port->disconnect (dst_port);
1266 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1268 CoreBackendPort* dst_port = find_port (dst);
1269 if (!valid_port (src)) {
1270 PBD::warning << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1274 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
1275 << " (" << dst << ")" << endmsg;
1278 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1282 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1284 CoreBackendPort* dst_port = find_port (dst);
1285 if (!valid_port (src) || !dst_port) {
1286 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1289 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1293 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1295 if (!valid_port (port)) {
1296 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1299 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1304 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1306 if (!valid_port (port)) {
1307 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1310 return static_cast<CoreBackendPort*>(port)->is_connected ();
1314 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1316 CoreBackendPort* dst_port = find_port (dst);
1318 if (!valid_port (src) || !dst_port) {
1319 PBD::warning << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1323 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1327 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1329 if (!valid_port (port)) {
1330 PBD::warning << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1333 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1337 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1339 if (!valid_port (port)) {
1340 PBD::warning << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1344 assert (0 == names.size ());
1346 const std::set<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1348 for (std::set<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1349 names.push_back ((*i)->name ());
1352 return (int)names.size ();
1357 CoreAudioBackend::midi_event_get (
1358 pframes_t& timestamp,
1359 size_t& size, uint8_t** buf, void* port_buffer,
1360 uint32_t event_index)
1362 if (!buf || !port_buffer) return -1;
1363 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1364 if (event_index >= source.size ()) {
1367 CoreMidiEvent * const event = source[event_index].get ();
1369 timestamp = event->timestamp ();
1370 size = event->size ();
1371 *buf = event->data ();
1376 CoreAudioBackend::_midi_event_put (
1378 pframes_t timestamp,
1379 const uint8_t* buffer, size_t size)
1381 if (!buffer || !port_buffer) return -1;
1382 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1383 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1385 // nevermind, ::get_buffer() sorts events
1386 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1387 (pframes_t)dst.back ()->timestamp (), timestamp);
1390 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1396 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1398 if (!port_buffer) return 0;
1399 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1403 CoreAudioBackend::midi_clear (void* port_buffer)
1405 if (!port_buffer) return;
1406 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1414 CoreAudioBackend::can_monitor_input () const
1420 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1426 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1432 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1437 /* Latency management */
1440 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1442 if (!valid_port (port)) {
1443 PBD::warning << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1446 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1450 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1453 if (!valid_port (port)) {
1454 PBD::warning << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1459 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1462 r = p->latency_range (for_playback);
1463 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1464 if (p->is_input() && for_playback) {
1465 r.min += _samples_per_period;
1466 r.max += _samples_per_period;
1468 if (p->is_output() && !for_playback) {
1469 r.min += _samples_per_period;
1470 r.max += _samples_per_period;
1476 /* Discovering physical ports */
1479 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1481 if (!valid_port (port)) {
1482 PBD::warning << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1485 return static_cast<CoreBackendPort*>(port)->is_physical ();
1489 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1491 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1492 CoreBackendPort* port = *i;
1493 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1494 port_names.push_back (port->name ());
1500 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1502 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1503 CoreBackendPort* port = *i;
1504 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1505 port_names.push_back (port->name ());
1511 CoreAudioBackend::n_physical_outputs () const
1515 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1516 CoreBackendPort* port = *i;
1517 if (port->is_output () && port->is_physical ()) {
1518 switch (port->type ()) {
1519 case DataType::AUDIO: ++n_audio; break;
1520 case DataType::MIDI: ++n_midi; break;
1526 cc.set (DataType::AUDIO, n_audio);
1527 cc.set (DataType::MIDI, n_midi);
1532 CoreAudioBackend::n_physical_inputs () const
1536 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1537 CoreBackendPort* port = *i;
1538 if (port->is_input () && port->is_physical ()) {
1539 switch (port->type ()) {
1540 case DataType::AUDIO: ++n_audio; break;
1541 case DataType::MIDI: ++n_midi; break;
1547 cc.set (DataType::AUDIO, n_audio);
1548 cc.set (DataType::MIDI, n_midi);
1552 /* Getting access to the data buffer for a port */
1555 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1557 if (!port || !valid_port (port)) return NULL;
1558 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1562 CoreAudioBackend::pre_process ()
1564 bool connections_changed = false;
1565 bool ports_changed = false;
1566 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1567 if (_port_change_flag) {
1568 ports_changed = true;
1569 _port_change_flag = false;
1571 if (!_port_connection_queue.empty ()) {
1572 connections_changed = true;
1574 while (!_port_connection_queue.empty ()) {
1575 PortConnectData *c = _port_connection_queue.back ();
1576 manager.connect_callback (c->a, c->b, c->c);
1577 _port_connection_queue.pop_back ();
1580 pthread_mutex_unlock (&_port_callback_mutex);
1582 if (ports_changed) {
1583 manager.registration_callback();
1585 if (connections_changed) {
1586 manager.graph_order_callback();
1588 if (connections_changed || ports_changed) {
1589 engine.latency_callback(false);
1590 engine.latency_callback(true);
1595 CoreAudioBackend::reset_midi_parsers ()
1597 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1598 CoreMidiPort* port = dynamic_cast<CoreMidiPort*>(*it);
1600 port->reset_parser ();
1606 CoreAudioBackend::freewheel_thread ()
1609 bool first_run = false;
1610 /* Freewheeling - use for export. The first call to
1611 * engine.process_callback() after engine.freewheel_callback will
1612 * if the first export cycle.
1613 * For reliable precise export timing, the calls need to be in sync.
1615 * Furthermore we need to make sure the registered process thread
1618 * _freewheeling = GUI thread state as set by ::freewheel()
1619 * _freewheel = in sync here (export thread)
1621 pthread_mutex_lock (&_freewheel_mutex);
1623 // check if we should run,
1624 if (_freewheeling != _freewheel) {
1625 if (!_freewheeling) {
1626 // prepare leaving freewheeling mode
1627 _freewheel = false; // first mark as disabled
1628 _reinit_thread_callback = true; // hand over _main_thread
1629 _freewheel_ack = false; // prepare next handshake
1630 reset_midi_parsers ();
1631 _midiio->set_enabled(true);
1632 engine.freewheel_callback (_freewheeling);
1639 if (!_freewheel || !_freewheel_ack) {
1640 // wait for a change, we use a timed wait to
1641 // terminate early in case some error sets _run = 0
1644 gettimeofday (&tv, NULL);
1645 ts.tv_sec = tv.tv_sec + 3;
1647 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1652 // tell the engine we're ready to GO.
1653 engine.freewheel_callback (_freewheeling);
1655 _main_thread = pthread_self();
1656 AudioEngine::thread_init_callback (this);
1657 _midiio->set_enabled(false);
1658 reset_midi_parsers ();
1661 // process port updates first in every cycle.
1664 // prevent coreaudio device changes
1665 pthread_mutex_lock (&_process_callback_mutex);
1669 // clear input buffers
1670 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1671 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1673 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1674 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1677 _last_process_start = 0;
1678 if (engine.process_callback (_samples_per_period)) {
1679 pthread_mutex_unlock (&_process_callback_mutex);
1683 pthread_mutex_unlock (&_process_callback_mutex);
1685 Glib::usleep (100); // don't hog cpu
1688 pthread_mutex_unlock (&_freewheel_mutex);
1693 // engine.process_callback() returner error
1694 engine.halted_callback("CoreAudio Freehweeling aborted.");
1699 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1706 if (_run && _freewheel && !_freewheel_ack) {
1707 // acknowledge freewheeling; hand-over thread ID
1708 pthread_mutex_lock (&_freewheel_mutex);
1709 if (_freewheel) _freewheel_ack = true;
1710 pthread_cond_signal (&_freewheel_signal);
1711 pthread_mutex_unlock (&_freewheel_mutex);
1714 if (!_run || _freewheel || _preinit) {
1715 // NB if we return 1, the output is
1716 // zeroed by the coreaudio callback
1720 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1721 _reinit_thread_callback = false;
1722 _main_thread = pthread_self();
1723 AudioEngine::thread_init_callback (this);
1726 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1727 // block while devices are added/removed
1729 printf("Xrun due to device change\n");
1734 /* port-connection change */
1737 // cycle-length in usec
1738 const double nominal_time = 1e6 * n_samples / _samplerate;
1740 clock1 = g_get_monotonic_time();
1744 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1745 CoreMidiPort* port = dynamic_cast<CoreMidiPort*> (*it);
1750 uint8_t data[128]; // matches CoreMidi's MIDIPacket
1751 size_t size = sizeof(data);
1753 port->clear_events ();
1755 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1756 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1757 assert (time < n_samples);
1758 port->parse_events (time, data, size);
1759 size = sizeof(data); /* prepare for next call to recv_event */
1765 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1766 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1769 /* clear output buffers */
1770 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1771 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1774 _midiio->start_cycle();
1775 _last_process_start = host_time;
1777 if (engine.process_callback (n_samples)) {
1778 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1779 //_pcmio->pcm_stop ();
1781 pthread_mutex_unlock (&_process_callback_mutex);
1786 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1787 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1790 /* queue outgoing midi */
1792 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1793 #if 0 // something's still b0rked with CoreMidiIo::send_events()
1794 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1795 _midiio->send_events (i, nominal_time, (void*)src);
1797 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1798 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1799 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1804 /* write back audio */
1806 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1807 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1810 _processed_samples += n_samples;
1812 /* calc DSP load. */
1813 _dsp_load_calc.set_max_time (_samplerate, _samples_per_period);
1814 _dsp_load_calc.set_start_timestamp_us (clock1);
1815 _dsp_load_calc.set_stop_timestamp_us (g_get_monotonic_time());
1816 _dsp_load = _dsp_load_calc.get_dsp_load ();
1818 pthread_mutex_unlock (&_process_callback_mutex);
1823 CoreAudioBackend::error_callback ()
1825 _pcmio->set_error_callback (NULL, NULL);
1826 _pcmio->set_sample_rate_callback (NULL, NULL);
1827 _pcmio->set_xrun_callback (NULL, NULL);
1828 _midiio->set_port_changed_callback(NULL, NULL);
1829 engine.halted_callback("CoreAudio Process aborted.");
1834 CoreAudioBackend::xrun_callback ()
1840 CoreAudioBackend::buffer_size_callback ()
1842 uint32_t bs = _pcmio->samples_per_period();
1843 if (bs == _samples_per_period) {
1846 _samples_per_period = bs;
1847 engine.buffer_size_change (_samples_per_period);
1851 CoreAudioBackend::sample_rate_callback ()
1855 printf("Samplerate change during initialization.\n");
1859 _pcmio->set_error_callback (NULL, NULL);
1860 _pcmio->set_sample_rate_callback (NULL, NULL);
1861 _pcmio->set_xrun_callback (NULL, NULL);
1862 _midiio->set_port_changed_callback(NULL, NULL);
1863 engine.halted_callback("Sample Rate Changed.");
1868 CoreAudioBackend::hw_changed_callback ()
1870 _reinit_thread_callback = true;
1871 engine.request_device_list_update();
1874 /******************************************************************************/
1876 static boost::shared_ptr<CoreAudioBackend> _instance;
1878 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1879 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1880 static int deinstantiate ();
1881 static bool already_configured ();
1882 static bool available ();
1884 static ARDOUR::AudioBackendInfo _descriptor = {
1893 static boost::shared_ptr<AudioBackend>
1894 backend_factory (AudioEngine& e)
1897 _instance.reset (new CoreAudioBackend (e, _descriptor));
1903 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1905 s_instance_name = arg1;
1917 already_configured ()
1928 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1930 return &_descriptor;
1934 /******************************************************************************/
1935 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1940 _capture_latency_range.min = 0;
1941 _capture_latency_range.max = 0;
1942 _playback_latency_range.min = 0;
1943 _playback_latency_range.max = 0;
1946 CoreBackendPort::~CoreBackendPort () {
1951 int CoreBackendPort::connect (CoreBackendPort *port)
1954 PBD::warning << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
1958 if (type () != port->type ()) {
1959 PBD::warning << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
1963 if (is_output () && port->is_output ()) {
1964 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
1968 if (is_input () && port->is_input ()) {
1969 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
1974 PBD::warning << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
1978 if (is_connected (port)) {
1979 #if 0 // don't bother to warn about this for now. just ignore it
1980 PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
1981 << " (" << name () << ") -> (" << port->name () << ")"
1987 _connect (port, true);
1992 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
1994 _connections.insert (port);
1996 port->_connect (this, false);
1997 _osx_backend.port_connect_callback (name(), port->name(), true);
2001 int CoreBackendPort::disconnect (CoreBackendPort *port)
2004 PBD::warning << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
2008 if (!is_connected (port)) {
2009 PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
2010 << " (" << name () << ") -> (" << port->name () << ")"
2014 _disconnect (port, true);
2018 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2020 std::set<CoreBackendPort*>::iterator it = _connections.find (port);
2021 assert (it != _connections.end ());
2022 _connections.erase (it);
2024 port->_disconnect (this, false);
2025 _osx_backend.port_connect_callback (name(), port->name(), false);
2030 void CoreBackendPort::disconnect_all ()
2032 while (!_connections.empty ()) {
2033 std::set<CoreBackendPort*>::iterator it = _connections.begin ();
2034 (*it)->_disconnect (this, false);
2035 _osx_backend.port_connect_callback (name(), (*it)->name(), false);
2036 _connections.erase (it);
2041 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2043 return _connections.find (const_cast<CoreBackendPort *>(port)) != _connections.end ();
2046 bool CoreBackendPort::is_physically_connected () const
2048 for (std::set<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2049 if ((*it)->is_physical ()) {
2056 /******************************************************************************/
2058 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2059 : CoreBackendPort (b, name, flags)
2061 memset (_buffer, 0, sizeof (_buffer));
2062 mlock(_buffer, sizeof (_buffer));
2065 CoreAudioPort::~CoreAudioPort () { }
2067 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2070 const std::set<CoreBackendPort *>& connections = get_connections ();
2071 std::set<CoreBackendPort*>::const_iterator it = connections.begin ();
2072 if (it == connections.end ()) {
2073 memset (_buffer, 0, n_samples * sizeof (Sample));
2075 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2076 assert (source && source->is_output ());
2077 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2078 while (++it != connections.end ()) {
2079 source = static_cast<const CoreAudioPort*>(*it);
2080 assert (source && source->is_output ());
2081 Sample* dst = buffer ();
2082 const Sample* src = source->const_buffer ();
2083 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2093 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2094 : CoreBackendPort (b, name, flags)
2099 , _unbuffered_bytes(0)
2101 , _expected_bytes(0)
2105 _buffer[0].clear ();
2106 _buffer[1].clear ();
2109 CoreMidiPort::~CoreMidiPort () { }
2111 struct MidiEventSorter {
2112 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
2117 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2120 (_buffer[_bufperiod]).clear ();
2121 const std::set<CoreBackendPort*>& connections = get_connections ();
2122 for (std::set<CoreBackendPort*>::const_iterator i = connections.begin ();
2123 i != connections.end ();
2125 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2126 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2127 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
2130 std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2133 return &(_buffer[_bufperiod]);
2137 CoreMidiPort::queue_event (
2139 pframes_t timestamp,
2140 const uint8_t* buffer, size_t size)
2142 const int ret = CoreAudioBackend::_midi_event_put (port_buffer, timestamp, buffer, size);
2143 if (!ret) { /* success */
2144 _event._pending = false;
2150 CoreMidiPort::reset_parser ()
2152 _event._pending = false;
2154 _unbuffered_bytes = 0;
2156 _expected_bytes = 0;
2161 CoreMidiPort::clear_events ()
2163 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2168 CoreMidiPort::parse_events (const uint64_t time, const uint8_t *data, const size_t size)
2170 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2172 if (_event._pending) {
2173 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2178 for (size_t i = 0; i < size; ++i) {
2179 if (_first_time && !(data[i] & 0x80)) {
2183 _first_time = false;
2185 if (process_byte(time, data[i])) {
2186 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2193 // based on JackMidiRawInputWriteQueue by Devin Anderson //
2195 CoreMidiPort::process_byte(const uint64_t time, const uint8_t byte)
2202 _parser_buffer[0] = byte;
2203 prepare_byte_event(time, byte);
2208 if (_status_byte == 0xf0) {
2210 return prepare_buffered_event(time);
2213 _unbuffered_bytes = 0;
2214 _expected_bytes = 0;
2219 // Non-realtime status byte
2221 printf ("CoreMidiPort: discarded bogus midi message\n");
2223 for (size_t i=0; i < _total_bytes; ++i) {
2224 printf("%02x ", _parser_buffer[i]);
2229 _unbuffered_bytes = 0;
2231 _status_byte = byte;
2232 switch (byte & 0xf0) {
2238 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
2239 _expected_bytes = 3;
2243 // Program Change, Channel Pressure
2244 _expected_bytes = 2;
2250 _expected_bytes = 0;
2254 // MTC Quarter Frame, Song Select
2255 _expected_bytes = 2;
2259 _expected_bytes = 3;
2264 _expected_bytes = 0;
2269 prepare_byte_event(time, byte);
2270 _expected_bytes = 0;
2279 if (! _status_byte) {
2280 // Data bytes without a status will be discarded.
2282 _unbuffered_bytes++;
2285 if (! _total_bytes) {
2286 record_byte(_status_byte);
2289 return (_total_bytes == _expected_bytes) ? prepare_buffered_event(time) : false;
2293 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2295 , _timestamp (timestamp)
2299 _data = (uint8_t*) malloc (size);
2300 memcpy (_data, data, size);
2304 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2305 : _size (other.size ())
2306 , _timestamp (other.timestamp ())
2309 if (other.size () && other.const_data ()) {
2310 _data = (uint8_t*) malloc (other.size ());
2311 memcpy (_data, other.const_data (), other.size ());
2315 CoreMidiEvent::~CoreMidiEvent () {