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.
21 /* use an additional midi message parser
23 * coreaudio does packetize midi. every packet includes a timestamp.
24 * With any real midi-device with a phyical layer
25 * 1 packet = 1 event (no concurrent events are possible on a cable)
27 * Howver, some USB-midi keyboards manage to send concurrent events
28 * which end up in the same packet (eg. 6 byte message: 2 note-on).
30 * An additional parser is needed to separate them
32 #define USE_MIDI_PARSER
41 #include "coreaudio_backend.h"
42 #include "rt_thread.h"
44 #include "pbd/compose.h"
45 #include "pbd/error.h"
46 #include "pbd/file_utils.h"
47 #include "ardour/filesystem_paths.h"
48 #include "ardour/port_manager.h"
51 using namespace ARDOUR;
53 static std::string s_instance_name;
54 size_t CoreAudioBackend::_max_buffer_size = 8192;
55 std::vector<std::string> CoreAudioBackend::_midi_options;
56 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
57 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
58 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
61 /* static class instance access */
62 static void hw_changed_callback_ptr (void *arg)
64 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
65 d->hw_changed_callback();
68 static void error_callback_ptr (void *arg)
70 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
74 static void xrun_callback_ptr (void *arg)
76 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
80 static void buffer_size_callback_ptr (void *arg)
82 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
83 d->buffer_size_callback();
86 static void sample_rate_callback_ptr (void *arg)
88 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
89 d->sample_rate_callback();
92 static void midi_port_change (void *arg)
94 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
95 d->coremidi_rediscover ();
99 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
100 : AudioBackend (e, info)
104 , _freewheeling (false)
106 , _freewheel_ack (false)
107 , _reinit_thread_callback (false)
108 , _measure_latency (false)
109 , _last_process_start (0)
110 , _input_audio_device("")
111 , _output_audio_device("")
112 , _midi_driver_option(get_standard_device_name(DeviceNone))
113 , _samplerate (48000)
114 , _samples_per_period (1024)
117 , _systemic_audio_input_latency (0)
118 , _systemic_audio_output_latency (0)
120 , _processed_samples (0)
121 , _port_change_flag (false)
122 #ifdef USE_MIDI_PARSER
123 , _unbuffered_bytes(0)
130 _instance_name = s_instance_name;
131 pthread_mutex_init (&_port_callback_mutex, 0);
132 pthread_mutex_init (&_process_callback_mutex, 0);
133 pthread_mutex_init (&_freewheel_mutex, 0);
134 pthread_cond_init (&_freewheel_signal, 0);
136 _pcmio = new CoreAudioPCM ();
137 _midiio = new CoreMidiIo ();
139 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
143 CoreAudioBackend::~CoreAudioBackend ()
145 delete _pcmio; _pcmio = 0;
146 delete _midiio; _midiio = 0;
147 pthread_mutex_destroy (&_port_callback_mutex);
148 pthread_mutex_destroy (&_process_callback_mutex);
149 pthread_mutex_destroy (&_freewheel_mutex);
150 pthread_cond_destroy (&_freewheel_signal);
153 /* AUDIOBACKEND API */
156 CoreAudioBackend::name () const
158 return X_("CoreAudio");
162 CoreAudioBackend::is_realtime () const
167 std::vector<AudioBackend::DeviceStatus>
168 CoreAudioBackend::enumerate_devices () const
170 _duplex_audio_device_status.clear();
171 std::map<size_t, std::string> devices;
172 _pcmio->duplex_device_list(devices);
174 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
175 if (_input_audio_device == "") _input_audio_device = i->second;
176 if (_output_audio_device == "") _output_audio_device = i->second;
177 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
179 return _duplex_audio_device_status;
182 std::vector<AudioBackend::DeviceStatus>
183 CoreAudioBackend::enumerate_input_devices () const
185 _input_audio_device_status.clear();
186 std::map<size_t, std::string> devices;
187 _pcmio->input_device_list(devices);
189 _input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
190 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
191 if (_input_audio_device == "") _input_audio_device = i->second;
192 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
194 return _input_audio_device_status;
198 std::vector<AudioBackend::DeviceStatus>
199 CoreAudioBackend::enumerate_output_devices () const
201 _output_audio_device_status.clear();
202 std::map<size_t, std::string> devices;
203 _pcmio->output_device_list(devices);
205 _output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
206 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
207 if (_output_audio_device == "") _output_audio_device = i->second;
208 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
210 return _output_audio_device_status;
214 CoreAudioBackend::available_sample_rates (const std::string& device) const
216 std::vector<float> sr;
217 _pcmio->available_sample_rates (name_to_id (device), sr);
222 CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) const
224 std::vector<float> sr;
225 std::vector<float> sr_in;
226 std::vector<float> sr_out;
228 const uint32_t inp = name_to_id (input_device);
229 const uint32_t out = name_to_id (output_device);
231 if (inp == UINT32_MAX && out == UINT32_MAX) {
233 } else if (inp == UINT32_MAX) {
234 _pcmio->available_sample_rates (out, sr_out);
236 } else if (out == UINT32_MAX) {
237 _pcmio->available_sample_rates (inp, sr_in);
240 _pcmio->available_sample_rates (inp, sr_in);
241 _pcmio->available_sample_rates (out, sr_out);
242 // TODO allow to use different SR per device, tweak aggregate
243 std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
248 std::vector<uint32_t>
249 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
251 std::vector<uint32_t> bs;
252 _pcmio->available_buffer_sizes (name_to_id (device), bs);
256 std::vector<uint32_t>
257 CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) const
259 std::vector<uint32_t> bs;
260 std::vector<uint32_t> bs_in;
261 std::vector<uint32_t> bs_out;
262 const uint32_t inp = name_to_id (input_device);
263 const uint32_t out = name_to_id (output_device);
264 if (inp == UINT32_MAX && out == UINT32_MAX) {
266 } else if (inp == UINT32_MAX) {
267 _pcmio->available_buffer_sizes (out, bs_out);
269 } else if (out == UINT32_MAX) {
270 _pcmio->available_buffer_sizes (inp, bs_in);
273 _pcmio->available_buffer_sizes (inp, bs_in);
274 _pcmio->available_buffer_sizes (out, bs_out);
275 std::set_intersection (bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
281 CoreAudioBackend::available_input_channel_count (const std::string&) const
283 return 128; // TODO query current device
287 CoreAudioBackend::available_output_channel_count (const std::string&) const
289 return 128; // TODO query current device
293 CoreAudioBackend::can_change_sample_rate_when_running () const
299 CoreAudioBackend::can_change_buffer_size_when_running () const
305 CoreAudioBackend::set_device_name (const std::string& d)
308 rv |= set_input_device_name (d);
309 rv |= set_output_device_name (d);
314 CoreAudioBackend::set_input_device_name (const std::string& d)
316 _input_audio_device = d;
317 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device));
318 if (sr > 0) { set_sample_rate(sr); }
323 CoreAudioBackend::set_output_device_name (const std::string& d)
325 _output_audio_device = d;
327 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device));
328 if (sr > 0) { set_sample_rate(sr); }
333 CoreAudioBackend::set_sample_rate (float sr)
335 std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_audio_device);
336 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
340 engine.sample_rate_change (sr);
345 CoreAudioBackend::set_buffer_size (uint32_t bs)
347 if (bs <= 0 || bs >= _max_buffer_size) {
350 _samples_per_period = bs;
351 _pcmio->set_samples_per_period(bs);
352 engine.buffer_size_change (bs);
357 CoreAudioBackend::set_interleaved (bool yn)
359 if (!yn) { return 0; }
364 CoreAudioBackend::set_input_channels (uint32_t cc)
371 CoreAudioBackend::set_output_channels (uint32_t cc)
378 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
380 _systemic_audio_input_latency = sl;
385 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
387 _systemic_audio_output_latency = sl;
391 /* Retrieving parameters */
393 CoreAudioBackend::device_name () const
399 CoreAudioBackend::input_device_name () const
401 return _input_audio_device;
405 CoreAudioBackend::output_device_name () const
407 return _output_audio_device;
411 CoreAudioBackend::sample_rate () const
417 CoreAudioBackend::buffer_size () const
419 return _samples_per_period;
423 CoreAudioBackend::interleaved () const
429 CoreAudioBackend::input_channels () const
435 CoreAudioBackend::output_channels () const
441 CoreAudioBackend::systemic_input_latency () const
443 return _systemic_audio_input_latency;
447 CoreAudioBackend::systemic_output_latency () const
449 return _systemic_audio_output_latency;
454 std::vector<std::string>
455 CoreAudioBackend::enumerate_midi_options () const
457 if (_midi_options.empty()) {
458 _midi_options.push_back (_("CoreMidi"));
459 _midi_options.push_back (get_standard_device_name(DeviceNone));
461 return _midi_options;
465 CoreAudioBackend::set_midi_option (const std::string& opt)
467 if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
470 _midi_driver_option = opt;
475 CoreAudioBackend::midi_option () const
477 return _midi_driver_option;
481 CoreAudioBackend::launch_control_app ()
483 if (name_to_id (_input_audio_device) != UINT32_MAX) {
484 _pcmio->launch_control_app(name_to_id(_input_audio_device));
486 if (name_to_id (_output_audio_device) != UINT32_MAX) {
487 _pcmio->launch_control_app(name_to_id(_output_audio_device));
493 static void * pthread_freewheel (void *arg)
495 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
496 d->freewheel_thread ();
501 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
503 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
504 return d->process_callback(n_samples, host_time);
508 CoreAudioBackend::_start (bool for_latency_measurement)
510 AudioBackend::ErrorCode error_code = NoError;
512 if ((!_active_ca || !_active_fw) && _run) {
513 // recover from 'halted', reap threads
517 if (_active_ca || _active_fw || _run) {
518 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
519 return BackendReinitializationError;
523 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
524 _system_inputs.clear();
525 _system_outputs.clear();
526 _system_midi_in.clear();
527 _system_midi_out.clear();
531 uint32_t device1 = name_to_id(_input_audio_device);
532 uint32_t device2 = name_to_id(_output_audio_device);
534 assert(_active_ca == false);
535 assert(_active_fw == false);
537 _freewheel_ack = false;
538 _reinit_thread_callback = true;
539 _last_process_start = 0;
541 _pcmio->set_error_callback (error_callback_ptr, this);
542 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
543 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
545 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
547 printf("STATE: %d\n", _pcmio->state ());
549 switch (_pcmio->state ()) {
553 PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
554 error_code = AudioDeviceInvalidError;
557 PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
558 error_code = AudioDeviceNotAvailableError;
561 PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
562 error_code = AudioDeviceOpenError;
565 PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
566 error_code = SampleRateNotSupportedError;
569 PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
570 error_code = PeriodSizeNotSupportedError;
573 PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
574 error_code = SampleFormatNotSupportedError;
577 PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
578 error_code = BackendInitializationError; // XXX
581 PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
582 error_code = OutOfMemoryError;
585 PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
586 error_code = BackendInitializationError; // XXX
589 PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
590 error_code = AudioDeviceIOError;
593 PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
594 error_code = PeriodSizeNotSupportedError;
597 PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
598 error_code = DeviceConfigurationNotSupportedError;
601 PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
602 error_code = BackendInitializationError;
605 if (_pcmio->state ()) {
609 if (_n_outputs != _pcmio->n_playback_channels ()) {
610 if (_n_outputs == 0) {
611 _n_outputs = _pcmio->n_playback_channels ();
613 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
615 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
618 if (_n_inputs != _pcmio->n_capture_channels ()) {
619 if (_n_inputs == 0) {
620 _n_inputs = _pcmio->n_capture_channels ();
622 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
624 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
627 if (_pcmio->samples_per_period() != _samples_per_period) {
628 _samples_per_period = _pcmio->samples_per_period();
629 PBD::warning << _("CoreAudioBackend: samples per period does not match.") << endmsg;
632 if (_pcmio->sample_rate() != _samplerate) {
633 _samplerate = _pcmio->sample_rate();
634 engine.sample_rate_change (_samplerate);
635 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
638 _measure_latency = for_latency_measurement;
642 _port_change_flag = false;
644 if (_midi_driver_option == _("CoreMidi")) {
645 _midiio->set_enabled(true);
646 _midiio->set_port_changed_callback(midi_port_change, this);
647 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
650 if (register_system_audio_ports()) {
651 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
653 return PortRegistrationError;
656 engine.sample_rate_change (_samplerate);
657 engine.buffer_size_change (_samples_per_period);
659 if (engine.reestablish_ports ()) {
660 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
662 return PortReconnectError;
665 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
667 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
668 delete _pcmio; _pcmio = 0;
670 return ProcessThreadStartError;
674 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
677 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
681 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
687 return FreewheelThreadStartError;
691 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
694 return ProcessThreadStartError;
697 engine.reconnect_ports ();
699 // force an initial registration_callback() & latency re-compute
700 _port_change_flag = true;
704 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
711 CoreAudioBackend::stop ()
720 _midiio->set_port_changed_callback(NULL, NULL);
723 pthread_mutex_lock (&_freewheel_mutex);
724 pthread_cond_signal (&_freewheel_signal);
725 pthread_mutex_unlock (&_freewheel_mutex);
727 if (pthread_join (_freeewheel_thread, &status)) {
728 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
735 _active_fw = false; // ??
741 CoreAudioBackend::freewheel (bool onoff)
743 if (onoff == _freewheeling) {
746 _freewheeling = onoff;
747 // wake up freewheeling thread
748 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
749 pthread_cond_signal (&_freewheel_signal);
750 pthread_mutex_unlock (&_freewheel_mutex);
756 CoreAudioBackend::dsp_load () const
758 return 100.f * _dsp_load;
762 CoreAudioBackend::raw_buffer_size (DataType t)
765 case DataType::AUDIO:
766 return _samples_per_period * sizeof(Sample);
768 return _max_buffer_size; // XXX not really limited
775 CoreAudioBackend::sample_time ()
777 return _processed_samples;
781 CoreAudioBackend::sample_time_at_cycle_start ()
783 return _processed_samples;
787 CoreAudioBackend::samples_since_cycle_start ()
789 if (!_active_ca || !_run || _freewheeling || _freewheel) {
792 if (_last_process_start == 0) {
796 const uint64_t now = AudioGetCurrentHostTime ();
797 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
798 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
802 CoreAudioBackend::name_to_id(std::string device_name) const {
803 uint32_t device_id = UINT32_MAX;
804 std::map<size_t, std::string> devices;
805 _pcmio->device_list(devices);
807 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
808 if (i->second == device_name) {
809 device_id = i->first;
817 CoreAudioBackend::coreaudio_process_thread (void *arg)
819 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
820 boost::function<void ()> f = td->f;
827 CoreAudioBackend::create_process_thread (boost::function<void()> func)
831 size_t stacksize = 100000;
833 ThreadData* td = new ThreadData (this, func, stacksize);
835 if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
836 &thread_id, coreaudio_process_thread, td)) {
837 pthread_attr_init (&attr);
838 pthread_attr_setstacksize (&attr, stacksize);
839 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
840 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
841 pthread_attr_destroy (&attr);
844 pthread_attr_destroy (&attr);
847 _threads.push_back (thread_id);
852 CoreAudioBackend::join_process_threads ()
856 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
859 if (pthread_join (*i, &status)) {
860 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
869 CoreAudioBackend::in_process_thread ()
871 if (pthread_equal (_main_thread, pthread_self()) != 0) {
875 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
877 if (pthread_equal (*i, pthread_self ()) != 0) {
885 CoreAudioBackend::process_thread_count ()
887 return _threads.size ();
891 CoreAudioBackend::update_latencies ()
893 // trigger latency callback in RT thread (locked graph)
894 port_connect_add_remove_callback();
900 CoreAudioBackend::private_handle () const
906 CoreAudioBackend::my_name () const
908 return _instance_name;
912 CoreAudioBackend::available () const
914 return _run && _active_fw && _active_ca;
918 CoreAudioBackend::port_name_size () const
924 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
926 if (!valid_port (port)) {
927 PBD::warning << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
930 return static_cast<CoreBackendPort*>(port)->set_name (_instance_name + ":" + name);
934 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
936 if (!valid_port (port)) {
937 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
938 return std::string ();
940 return static_cast<CoreBackendPort*>(port)->name ();
944 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
946 if (!valid_port (port)) {
947 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
950 if (key == "http://jackaudio.org/metadata/pretty-name") {
952 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
953 if (!value.empty()) {
960 PortEngine::PortHandle
961 CoreAudioBackend::get_port_by_name (const std::string& name) const
963 PortHandle port = (PortHandle) find_port (name);
968 CoreAudioBackend::get_ports (
969 const std::string& port_name_pattern,
970 DataType type, PortFlags flags,
971 std::vector<std::string>& port_names) const
975 bool use_regexp = false;
976 if (port_name_pattern.size () > 0) {
977 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
981 for (size_t i = 0; i < _ports.size (); ++i) {
982 CoreBackendPort* port = _ports[i];
983 if ((port->type () == type) && flags == (port->flags () & flags)) {
984 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
985 port_names.push_back (port->name ());
991 regfree (&port_regex);
997 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
999 if (!valid_port (port)) {
1000 return DataType::NIL;
1002 return static_cast<CoreBackendPort*>(port)->type ();
1005 PortEngine::PortHandle
1006 CoreAudioBackend::register_port (
1007 const std::string& name,
1008 ARDOUR::DataType type,
1009 ARDOUR::PortFlags flags)
1011 if (name.size () == 0) { return 0; }
1012 if (flags & IsPhysical) { return 0; }
1013 return add_port (_instance_name + ":" + name, type, flags);
1016 PortEngine::PortHandle
1017 CoreAudioBackend::add_port (
1018 const std::string& name,
1019 ARDOUR::DataType type,
1020 ARDOUR::PortFlags flags)
1022 assert(name.size ());
1023 if (find_port (name)) {
1024 PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
1025 << " (" << name << ")" << endmsg;
1028 CoreBackendPort* port = NULL;
1030 case DataType::AUDIO:
1031 port = new CoreAudioPort (*this, name, flags);
1033 case DataType::MIDI:
1034 port = new CoreMidiPort (*this, name, flags);
1037 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
1041 _ports.push_back (port);
1047 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
1052 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
1053 std::vector<CoreBackendPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<CoreBackendPort*>(port_handle));
1054 if (i == _ports.end ()) {
1055 PBD::warning << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
1058 disconnect_all(port_handle);
1064 CoreAudioBackend::register_system_audio_ports()
1068 const uint32_t a_ins = _n_inputs;
1069 const uint32_t a_out = _n_outputs;
1071 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device), true);
1072 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device), false);
1075 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1076 coreaudio_reported_input_latency,
1077 coreaudio_reported_output_latency);
1081 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1082 for (uint32_t i = 0; i < a_ins; ++i) {
1084 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1085 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1087 set_latency_range (p, false, lr);
1088 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1089 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1090 _system_inputs.push_back(cp);
1093 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1094 for (uint32_t i = 0; i < a_out; ++i) {
1096 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1097 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1099 set_latency_range (p, true, lr);
1100 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1101 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1102 _system_outputs.push_back(cp);
1108 CoreAudioBackend::coremidi_rediscover()
1110 if (!_run) { return; }
1111 assert(_midi_driver_option == _("CoreMidi"));
1113 pthread_mutex_lock (&_process_callback_mutex);
1115 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1117 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1118 if ((*it)->name() == _midiio->port_id(i, false)) {
1127 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1129 _port_change_flag = true;
1130 unregister_port((*it));
1131 it = _system_midi_out.erase(it);
1135 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1137 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1138 if ((*it)->name() == _midiio->port_id(i, true)) {
1147 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1149 _port_change_flag = true;
1150 unregister_port((*it));
1151 it = _system_midi_in.erase(it);
1155 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1156 std::string name = _midiio->port_id(i, true);
1157 if (find_port_in(_system_midi_in, name)) {
1162 printf("register MIDI Input: %s\n", name.c_str());
1164 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1166 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1170 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1171 set_latency_range (p, false, lr);
1172 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1173 pp->set_pretty_name(_midiio->port_name(i, true));
1174 _system_midi_in.push_back(pp);
1175 _port_change_flag = true;
1178 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1179 std::string name = _midiio->port_id(i, false);
1180 if (find_port_in(_system_midi_out, name)) {
1185 printf("register MIDI OUT: %s\n", name.c_str());
1187 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1189 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1193 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1194 set_latency_range (p, false, lr);
1195 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1196 pp->set_pretty_name(_midiio->port_name(i, false));
1197 _system_midi_out.push_back(pp);
1198 _port_change_flag = true;
1202 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1203 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1205 pthread_mutex_unlock (&_process_callback_mutex);
1209 CoreAudioBackend::unregister_ports (bool system_only)
1212 _system_inputs.clear();
1213 _system_outputs.clear();
1214 _system_midi_in.clear();
1215 _system_midi_out.clear();
1216 while (i < _ports.size ()) {
1217 CoreBackendPort* port = _ports[i];
1218 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1219 port->disconnect_all ();
1221 _ports.erase (_ports.begin() + i);
1229 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1231 CoreBackendPort* src_port = find_port (src);
1232 CoreBackendPort* dst_port = find_port (dst);
1235 PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
1236 << " (" << src <<")" << endmsg;
1240 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
1241 << " (" << dst <<")" << endmsg;
1244 return src_port->connect (dst_port);
1248 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1250 CoreBackendPort* src_port = find_port (src);
1251 CoreBackendPort* dst_port = find_port (dst);
1253 if (!src_port || !dst_port) {
1254 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1257 return src_port->disconnect (dst_port);
1261 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1263 CoreBackendPort* dst_port = find_port (dst);
1264 if (!valid_port (src)) {
1265 PBD::warning << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1269 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
1270 << " (" << dst << ")" << endmsg;
1273 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1277 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1279 CoreBackendPort* dst_port = find_port (dst);
1280 if (!valid_port (src) || !dst_port) {
1281 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1284 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1288 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1290 if (!valid_port (port)) {
1291 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1294 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1299 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1301 if (!valid_port (port)) {
1302 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1305 return static_cast<CoreBackendPort*>(port)->is_connected ();
1309 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1311 CoreBackendPort* dst_port = find_port (dst);
1312 if (!valid_port (src) || !dst_port) {
1313 PBD::warning << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1316 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1320 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1322 if (!valid_port (port)) {
1323 PBD::warning << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1326 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1330 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1332 if (!valid_port (port)) {
1333 PBD::warning << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1337 assert (0 == names.size ());
1339 const std::vector<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1341 for (std::vector<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1342 names.push_back ((*i)->name ());
1345 return (int)names.size ();
1350 CoreAudioBackend::midi_event_get (
1351 pframes_t& timestamp,
1352 size_t& size, uint8_t** buf, void* port_buffer,
1353 uint32_t event_index)
1355 if (!buf || !port_buffer) return -1;
1356 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1357 if (event_index >= source.size ()) {
1360 CoreMidiEvent * const event = source[event_index].get ();
1362 timestamp = event->timestamp ();
1363 size = event->size ();
1364 *buf = event->data ();
1369 CoreAudioBackend::midi_event_put (
1371 pframes_t timestamp,
1372 const uint8_t* buffer, size_t size)
1374 if (!buffer || !port_buffer) return -1;
1375 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1376 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
1378 // nevermind, ::get_buffer() sorts events
1379 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1380 (pframes_t)dst.back ()->timestamp (), timestamp);
1383 dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
1388 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1390 if (!port_buffer) return 0;
1391 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1395 CoreAudioBackend::midi_clear (void* port_buffer)
1397 if (!port_buffer) return;
1398 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1406 CoreAudioBackend::can_monitor_input () const
1412 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1418 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1424 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1429 /* Latency management */
1432 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1434 if (!valid_port (port)) {
1435 PBD::warning << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1438 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1442 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1445 if (!valid_port (port)) {
1446 PBD::warning << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1451 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1454 r = p->latency_range (for_playback);
1455 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1456 if (p->is_input() && for_playback) {
1457 r.min += _samples_per_period;
1458 r.max += _samples_per_period;
1460 if (p->is_output() && !for_playback) {
1461 r.min += _samples_per_period;
1462 r.max += _samples_per_period;
1468 /* Discovering physical ports */
1471 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1473 if (!valid_port (port)) {
1474 PBD::warning << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1477 return static_cast<CoreBackendPort*>(port)->is_physical ();
1481 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1483 for (size_t i = 0; i < _ports.size (); ++i) {
1484 CoreBackendPort* port = _ports[i];
1485 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1486 port_names.push_back (port->name ());
1492 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1494 for (size_t i = 0; i < _ports.size (); ++i) {
1495 CoreBackendPort* port = _ports[i];
1496 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1497 port_names.push_back (port->name ());
1503 CoreAudioBackend::n_physical_outputs () const
1507 for (size_t i = 0; i < _ports.size (); ++i) {
1508 CoreBackendPort* port = _ports[i];
1509 if (port->is_output () && port->is_physical ()) {
1510 switch (port->type ()) {
1511 case DataType::AUDIO: ++n_audio; break;
1512 case DataType::MIDI: ++n_midi; break;
1518 cc.set (DataType::AUDIO, n_audio);
1519 cc.set (DataType::MIDI, n_midi);
1524 CoreAudioBackend::n_physical_inputs () const
1528 for (size_t i = 0; i < _ports.size (); ++i) {
1529 CoreBackendPort* port = _ports[i];
1530 if (port->is_input () && port->is_physical ()) {
1531 switch (port->type ()) {
1532 case DataType::AUDIO: ++n_audio; break;
1533 case DataType::MIDI: ++n_midi; break;
1539 cc.set (DataType::AUDIO, n_audio);
1540 cc.set (DataType::MIDI, n_midi);
1544 /* Getting access to the data buffer for a port */
1547 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1549 if (!port || !valid_port (port)) return NULL;
1550 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1554 CoreAudioBackend::pre_process ()
1556 bool connections_changed = false;
1557 bool ports_changed = false;
1558 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1559 if (_port_change_flag) {
1560 ports_changed = true;
1561 _port_change_flag = false;
1563 if (!_port_connection_queue.empty ()) {
1564 connections_changed = true;
1566 while (!_port_connection_queue.empty ()) {
1567 PortConnectData *c = _port_connection_queue.back ();
1568 manager.connect_callback (c->a, c->b, c->c);
1569 _port_connection_queue.pop_back ();
1572 pthread_mutex_unlock (&_port_callback_mutex);
1574 if (ports_changed) {
1575 manager.registration_callback();
1577 if (connections_changed) {
1578 manager.graph_order_callback();
1580 if (connections_changed || ports_changed) {
1581 engine.latency_callback(false);
1582 engine.latency_callback(true);
1587 CoreAudioBackend::freewheel_thread ()
1590 bool first_run = false;
1591 /* Freewheeling - use for export. The first call to
1592 * engine.process_callback() after engine.freewheel_callback will
1593 * if the first export cycle.
1594 * For reliable precise export timing, the calls need to be in sync.
1596 * Furthermore we need to make sure the registered process thread
1599 * _freewheeling = GUI thread state as set by ::freewheel()
1600 * _freewheel = in sync here (export thread)
1602 pthread_mutex_lock (&_freewheel_mutex);
1604 // check if we should run,
1605 if (_freewheeling != _freewheel) {
1606 if (!_freewheeling) {
1607 // prepare leaving freewheeling mode
1608 _freewheel = false; // first mark as disabled
1609 _reinit_thread_callback = true; // hand over _main_thread
1610 _freewheel_ack = false; // prepare next handshake
1611 _midiio->set_enabled(true);
1618 if (!_freewheel || !_freewheel_ack) {
1619 // wait for a change, we use a timed wait to
1620 // terminate early in case some error sets _run = 0
1623 gettimeofday (&tv, NULL);
1624 ts.tv_sec = tv.tv_sec + 3;
1626 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1631 // tell the engine we're ready to GO.
1632 engine.freewheel_callback (_freewheeling);
1634 _main_thread = pthread_self();
1635 AudioEngine::thread_init_callback (this);
1636 _midiio->set_enabled(false);
1639 // process port updates first in every cycle.
1642 // prevent coreaudio device changes
1643 pthread_mutex_lock (&_process_callback_mutex);
1647 // clear input buffers
1648 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1649 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1651 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1652 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1655 _last_process_start = 0;
1656 if (engine.process_callback (_samples_per_period)) {
1657 pthread_mutex_unlock (&_process_callback_mutex);
1661 pthread_mutex_unlock (&_process_callback_mutex);
1663 Glib::usleep (100); // don't hog cpu
1666 pthread_mutex_unlock (&_freewheel_mutex);
1671 // engine.process_callback() returner error
1672 engine.halted_callback("CoreAudio Freehweeling aborted.");
1677 #ifdef USE_MIDI_PARSER
1679 CoreAudioBackend::midi_process_byte (const uint8_t byte)
1687 midi_prepare_byte_event (byte);
1692 if (_status_byte == 0xf0) {
1693 midi_record_byte (byte);
1694 return midi_prepare_buffered_event ();
1697 _unbuffered_bytes = 0;
1698 _expected_bytes = 0;
1703 // Non-realtime status byte
1706 _unbuffered_bytes = 0;
1708 _status_byte = byte;
1709 switch (byte & 0xf0) {
1715 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
1716 _expected_bytes = 3;
1720 // Program Change, Channel Pressure
1721 _expected_bytes = 2;
1727 _expected_bytes = 0;
1731 // MTC Quarter Frame, Song Select
1732 _expected_bytes = 2;
1736 _expected_bytes = 3;
1741 _expected_bytes = 0;
1746 midi_prepare_byte_event (byte);
1747 _expected_bytes = 0;
1752 midi_record_byte (byte);
1756 if (! _status_byte) {
1757 // Data bytes without a status will be discarded.
1759 _unbuffered_bytes++;
1762 if (! _total_bytes) {
1763 midi_record_byte (_status_byte);
1765 midi_record_byte(byte);
1766 return (_total_bytes == _expected_bytes) ? midi_prepare_buffered_event() : false;
1772 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1779 if (_run && _freewheel && !_freewheel_ack) {
1780 // acknowledge freewheeling; hand-over thread ID
1781 pthread_mutex_lock (&_freewheel_mutex);
1782 if (_freewheel) _freewheel_ack = true;
1783 pthread_cond_signal (&_freewheel_signal);
1784 pthread_mutex_unlock (&_freewheel_mutex);
1787 if (!_run || _freewheel || _preinit) {
1788 // NB if we return 1, the output is
1789 // zeroed by the coreaudio callback
1793 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1794 _reinit_thread_callback = false;
1795 _main_thread = pthread_self();
1796 AudioEngine::thread_init_callback (this);
1799 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1800 // block while devices are added/removed
1802 printf("Xrun due to device change\n");
1807 /* port-connection change */
1810 // cycle-length in usec
1811 const double nominal_time = 1e6 * n_samples / _samplerate;
1813 clock1 = g_get_monotonic_time();
1817 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1818 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>((*it)->get_buffer(0));
1821 uint8_t data[128]; // matches CoreMidi's MIDIPacket
1822 size_t size = sizeof(data);
1823 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1824 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1825 assert (time < n_samples);
1826 #ifndef USE_MIDI_PARSER
1827 midi_event_put((void*)mbuf, time, data, size);
1829 assert (size < 128);// coremidi limit per packet
1830 bool first_time = true; // this would need to be rememberd per port.
1831 for (size_t mb = 0; mb < size; ++mb) {
1832 if (first_time && !(data[mb] & 0x80)) {
1833 /* expect a status byte at the beginning or every Packet.
1835 * This parser drops messages spanning multiple packets
1836 * (sysex > 127 bytes).
1837 * see also libs/backends/alsa/alsa_rawmidi.cc
1838 * which implements a complete parser per port without this limit.
1844 if (midi_process_byte (data[mb])) {
1845 midi_event_put ((void*)mbuf, time, _parser_buffer, _parser_bytes);
1849 size = sizeof(data);
1855 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1856 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1859 /* clear output buffers */
1860 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1861 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1864 _midiio->start_cycle();
1865 _last_process_start = host_time;
1867 if (engine.process_callback (n_samples)) {
1868 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1869 //_pcmio->pcm_stop ();
1871 pthread_mutex_unlock (&_process_callback_mutex);
1876 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1877 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1880 /* queue outgoing midi */
1882 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1883 #if 0 // something's still b0rked with CoreMidiIo::send_events()
1884 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1885 _midiio->send_events (i, nominal_time, (void*)src);
1887 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1888 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1889 _midiio->send_event (i, (*mit)->timestamp() / nominal_time, (*mit)->data(), (*mit)->size());
1894 /* write back audio */
1896 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1897 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1900 _processed_samples += n_samples;
1902 /* calc DSP load. */
1903 _dsp_load_calc.set_max_time (_samplerate, _samples_per_period);
1904 _dsp_load_calc.set_start_timestamp_us (clock1);
1905 _dsp_load_calc.set_stop_timestamp_us (g_get_monotonic_time());
1906 _dsp_load = _dsp_load_calc.get_dsp_load ();
1908 pthread_mutex_unlock (&_process_callback_mutex);
1913 CoreAudioBackend::error_callback ()
1915 _pcmio->set_error_callback (NULL, NULL);
1916 _pcmio->set_sample_rate_callback (NULL, NULL);
1917 _pcmio->set_xrun_callback (NULL, NULL);
1918 _midiio->set_port_changed_callback(NULL, NULL);
1919 engine.halted_callback("CoreAudio Process aborted.");
1924 CoreAudioBackend::xrun_callback ()
1930 CoreAudioBackend::buffer_size_callback ()
1932 uint32_t bs = _pcmio->samples_per_period();
1933 if (bs == _samples_per_period) {
1936 _samples_per_period = bs;
1937 engine.buffer_size_change (_samples_per_period);
1941 CoreAudioBackend::sample_rate_callback ()
1945 printf("Samplerate change during initialization.\n");
1949 _pcmio->set_error_callback (NULL, NULL);
1950 _pcmio->set_sample_rate_callback (NULL, NULL);
1951 _pcmio->set_xrun_callback (NULL, NULL);
1952 _midiio->set_port_changed_callback(NULL, NULL);
1953 engine.halted_callback("Sample Rate Changed.");
1958 CoreAudioBackend::hw_changed_callback ()
1960 _reinit_thread_callback = true;
1961 engine.request_device_list_update();
1964 /******************************************************************************/
1966 static boost::shared_ptr<CoreAudioBackend> _instance;
1968 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1969 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1970 static int deinstantiate ();
1971 static bool already_configured ();
1972 static bool available ();
1974 static ARDOUR::AudioBackendInfo _descriptor = {
1983 static boost::shared_ptr<AudioBackend>
1984 backend_factory (AudioEngine& e)
1987 _instance.reset (new CoreAudioBackend (e, _descriptor));
1993 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1995 s_instance_name = arg1;
2007 already_configured ()
2018 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
2020 return &_descriptor;
2024 /******************************************************************************/
2025 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2030 _capture_latency_range.min = 0;
2031 _capture_latency_range.max = 0;
2032 _playback_latency_range.min = 0;
2033 _playback_latency_range.max = 0;
2036 CoreBackendPort::~CoreBackendPort () {
2041 int CoreBackendPort::connect (CoreBackendPort *port)
2044 PBD::warning << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
2048 if (type () != port->type ()) {
2049 PBD::warning << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
2053 if (is_output () && port->is_output ()) {
2054 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
2058 if (is_input () && port->is_input ()) {
2059 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
2064 PBD::warning << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
2068 if (is_connected (port)) {
2069 #if 0 // don't bother to warn about this for now. just ignore it
2070 PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
2071 << " (" << name () << ") -> (" << port->name () << ")"
2077 _connect (port, true);
2082 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
2084 _connections.push_back (port);
2086 port->_connect (this, false);
2087 _osx_backend.port_connect_callback (name(), port->name(), true);
2091 int CoreBackendPort::disconnect (CoreBackendPort *port)
2094 PBD::warning << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
2098 if (!is_connected (port)) {
2099 PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
2100 << " (" << name () << ") -> (" << port->name () << ")"
2104 _disconnect (port, true);
2108 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2110 std::vector<CoreBackendPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
2112 assert (it != _connections.end ());
2114 _connections.erase (it);
2117 port->_disconnect (this, false);
2118 _osx_backend.port_connect_callback (name(), port->name(), false);
2123 void CoreBackendPort::disconnect_all ()
2125 while (!_connections.empty ()) {
2126 _connections.back ()->_disconnect (this, false);
2127 _osx_backend.port_connect_callback (name(), _connections.back ()->name(), false);
2128 _connections.pop_back ();
2133 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2135 return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
2138 bool CoreBackendPort::is_physically_connected () const
2140 for (std::vector<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2141 if ((*it)->is_physical ()) {
2148 /******************************************************************************/
2150 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2151 : CoreBackendPort (b, name, flags)
2153 memset (_buffer, 0, sizeof (_buffer));
2154 mlock(_buffer, sizeof (_buffer));
2157 CoreAudioPort::~CoreAudioPort () { }
2159 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2162 std::vector<CoreBackendPort*>::const_iterator it = get_connections ().begin ();
2163 if (it == get_connections ().end ()) {
2164 memset (_buffer, 0, n_samples * sizeof (Sample));
2166 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2167 assert (source && source->is_output ());
2168 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2169 while (++it != get_connections ().end ()) {
2170 source = static_cast<const CoreAudioPort*>(*it);
2171 assert (source && source->is_output ());
2172 Sample* dst = buffer ();
2173 const Sample* src = source->const_buffer ();
2174 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2184 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2185 : CoreBackendPort (b, name, flags)
2189 _buffer[0].clear ();
2190 _buffer[1].clear ();
2193 CoreMidiPort::~CoreMidiPort () { }
2195 struct MidiEventSorter {
2196 bool operator() (const boost::shared_ptr<CoreMidiEvent>& a, const boost::shared_ptr<CoreMidiEvent>& b) {
2201 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2204 (_buffer[_bufperiod]).clear ();
2205 for (std::vector<CoreBackendPort*>::const_iterator i = get_connections ().begin ();
2206 i != get_connections ().end ();
2208 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2209 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2210 (_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
2213 std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2215 return &(_buffer[_bufperiod]);
2218 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2220 , _timestamp (timestamp)
2224 _data = (uint8_t*) malloc (size);
2225 memcpy (_data, data, size);
2229 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2230 : _size (other.size ())
2231 , _timestamp (other.timestamp ())
2234 if (other.size () && other.const_data ()) {
2235 _data = (uint8_t*) malloc (other.size ());
2236 memcpy (_data, other.const_data (), other.size ());
2240 CoreMidiEvent::~CoreMidiEvent () {