2 * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
3 * Copyright (C) 2013 Paul Davis
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include <mach/thread_policy.h>
25 #include <mach/thread_act.h>
29 #include "coreaudio_backend.h"
31 #include "pbd/compose.h"
32 #include "pbd/error.h"
33 #include "pbd/file_utils.h"
34 #include "pbd/pthread_utils.h"
35 #include "ardour/filesystem_paths.h"
36 #include "ardour/port_manager.h"
39 using namespace ARDOUR;
41 static std::string s_instance_name;
42 size_t CoreAudioBackend::_max_buffer_size = 8192;
43 std::vector<std::string> CoreAudioBackend::_midi_options;
44 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_duplex_audio_device_status;
45 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_input_audio_device_status;
46 std::vector<AudioBackend::DeviceStatus> CoreAudioBackend::_output_audio_device_status;
49 /* static class instance access */
50 static void hw_changed_callback_ptr (void *arg)
52 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
53 d->hw_changed_callback();
56 static void error_callback_ptr (void *arg)
58 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
62 static void xrun_callback_ptr (void *arg)
64 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
68 static void buffer_size_callback_ptr (void *arg)
70 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
71 d->buffer_size_callback();
74 static void sample_rate_callback_ptr (void *arg)
76 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
77 d->sample_rate_callback();
80 static void midi_port_change (void *arg)
82 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
83 d->coremidi_rediscover ();
87 CoreAudioBackend::CoreAudioBackend (AudioEngine& e, AudioBackendInfo& info)
88 : AudioBackend (e, info)
92 , _freewheeling (false)
94 , _freewheel_ack (false)
95 , _reinit_thread_callback (false)
96 , _measure_latency (false)
97 , _last_process_start (0)
98 , _input_audio_device("")
99 , _output_audio_device("")
100 , _midi_driver_option(get_standard_device_name(DeviceNone))
101 , _samplerate (48000)
102 , _samples_per_period (1024)
105 , _systemic_audio_input_latency (0)
106 , _systemic_audio_output_latency (0)
108 , _processed_samples (0)
109 , _port_change_flag (false)
111 _instance_name = s_instance_name;
112 pthread_mutex_init (&_port_callback_mutex, 0);
113 pthread_mutex_init (&_process_callback_mutex, 0);
114 pthread_mutex_init (&_freewheel_mutex, 0);
115 pthread_cond_init (&_freewheel_signal, 0);
117 _port_connection_queue.reserve (128);
119 _pcmio = new CoreAudioPCM ();
120 _midiio = new CoreMidiIo ();
122 _pcmio->set_hw_changed_callback (hw_changed_callback_ptr, this);
126 CoreAudioBackend::~CoreAudioBackend ()
128 delete _pcmio; _pcmio = 0;
129 delete _midiio; _midiio = 0;
130 pthread_mutex_destroy (&_port_callback_mutex);
131 pthread_mutex_destroy (&_process_callback_mutex);
132 pthread_mutex_destroy (&_freewheel_mutex);
133 pthread_cond_destroy (&_freewheel_signal);
136 /* AUDIOBACKEND API */
139 CoreAudioBackend::name () const
141 return X_("CoreAudio");
145 CoreAudioBackend::is_realtime () const
150 std::vector<AudioBackend::DeviceStatus>
151 CoreAudioBackend::enumerate_devices () const
153 _duplex_audio_device_status.clear();
154 std::map<size_t, std::string> devices;
155 _pcmio->duplex_device_list(devices);
157 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
158 if (_input_audio_device == "") _input_audio_device = i->second;
159 if (_output_audio_device == "") _output_audio_device = i->second;
160 _duplex_audio_device_status.push_back (DeviceStatus (i->second, true));
162 return _duplex_audio_device_status;
165 std::vector<AudioBackend::DeviceStatus>
166 CoreAudioBackend::enumerate_input_devices () const
168 _input_audio_device_status.clear();
169 std::map<size_t, std::string> devices;
170 _pcmio->input_device_list(devices);
172 _input_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
173 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
174 if (_input_audio_device == "") _input_audio_device = i->second;
175 _input_audio_device_status.push_back (DeviceStatus (i->second, true));
177 return _input_audio_device_status;
181 std::vector<AudioBackend::DeviceStatus>
182 CoreAudioBackend::enumerate_output_devices () const
184 _output_audio_device_status.clear();
185 std::map<size_t, std::string> devices;
186 _pcmio->output_device_list(devices);
188 _output_audio_device_status.push_back (DeviceStatus (get_standard_device_name(DeviceNone), true));
189 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
190 if (_output_audio_device == "") _output_audio_device = i->second;
191 _output_audio_device_status.push_back (DeviceStatus (i->second, true));
193 return _output_audio_device_status;
197 CoreAudioBackend::available_sample_rates (const std::string& device) const
199 std::vector<float> sr;
200 _pcmio->available_sample_rates (name_to_id (device), sr);
205 CoreAudioBackend::available_sample_rates2 (const std::string& input_device, const std::string& output_device) const
207 std::vector<float> sr;
208 std::vector<float> sr_in;
209 std::vector<float> sr_out;
211 const uint32_t inp = name_to_id (input_device, Input);
212 const uint32_t out = name_to_id (output_device, Output);
214 if (inp == UINT32_MAX && out == UINT32_MAX) {
216 } else if (inp == UINT32_MAX) {
217 _pcmio->available_sample_rates (out, sr_out);
219 } else if (out == UINT32_MAX) {
220 _pcmio->available_sample_rates (inp, sr_in);
223 _pcmio->available_sample_rates (inp, sr_in);
224 _pcmio->available_sample_rates (out, sr_out);
225 // TODO allow to use different SR per device, tweak aggregate
226 std::set_intersection (sr_in.begin(), sr_in.end(), sr_out.begin(), sr_out.end(), std::back_inserter(sr));
231 std::vector<uint32_t>
232 CoreAudioBackend::available_buffer_sizes (const std::string& device) const
234 std::vector<uint32_t> bs;
235 _pcmio->available_buffer_sizes (name_to_id (device), bs);
239 std::vector<uint32_t>
240 CoreAudioBackend::available_buffer_sizes2 (const std::string& input_device, const std::string& output_device) const
242 std::vector<uint32_t> bs;
243 std::vector<uint32_t> bs_in;
244 std::vector<uint32_t> bs_out;
245 const uint32_t inp = name_to_id (input_device, Input);
246 const uint32_t out = name_to_id (output_device, Output);
247 if (inp == UINT32_MAX && out == UINT32_MAX) {
249 } else if (inp == UINT32_MAX) {
250 _pcmio->available_buffer_sizes (out, bs_out);
252 } else if (out == UINT32_MAX) {
253 _pcmio->available_buffer_sizes (inp, bs_in);
256 _pcmio->available_buffer_sizes (inp, bs_in);
257 _pcmio->available_buffer_sizes (out, bs_out);
258 std::set_intersection (bs_in.begin(), bs_in.end(), bs_out.begin(), bs_out.end(), std::back_inserter(bs));
264 CoreAudioBackend::available_input_channel_count (const std::string&) const
266 return 128; // TODO query current device
270 CoreAudioBackend::available_output_channel_count (const std::string&) const
272 return 128; // TODO query current device
276 CoreAudioBackend::can_change_sample_rate_when_running () const
282 CoreAudioBackend::can_change_buffer_size_when_running () const
288 CoreAudioBackend::set_device_name (const std::string& d)
291 rv |= set_input_device_name (d);
292 rv |= set_output_device_name (d);
297 CoreAudioBackend::set_input_device_name (const std::string& d)
299 _input_audio_device = d;
300 const float sr = _pcmio->current_sample_rate(name_to_id(_input_audio_device, Input));
301 if (sr > 0) { set_sample_rate(sr); }
306 CoreAudioBackend::set_output_device_name (const std::string& d)
308 _output_audio_device = d;
310 const float sr = _pcmio->current_sample_rate(name_to_id(_output_audio_device, Output));
311 if (sr > 0) { set_sample_rate(sr); }
316 CoreAudioBackend::set_sample_rate (float sr)
318 std::vector<float> srs = available_sample_rates2 (_input_audio_device, _output_audio_device);
319 if (std::find(srs.begin(), srs.end(), sr) == srs.end()) {
323 engine.sample_rate_change (sr);
328 CoreAudioBackend::set_buffer_size (uint32_t bs)
330 if (bs <= 0 || bs >= _max_buffer_size) {
333 _samples_per_period = bs;
334 _pcmio->set_samples_per_period(bs);
336 pbd_mach_set_realtime_policy (_main_thread, 1e9 * _samples_per_period / _samplerate);
338 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i) {
339 pbd_mach_set_realtime_policy (*i, 1e9 * _samples_per_period / _samplerate);
341 //engine.buffer_size_change (bs);
346 CoreAudioBackend::set_interleaved (bool yn)
348 if (!yn) { return 0; }
353 CoreAudioBackend::set_input_channels (uint32_t cc)
360 CoreAudioBackend::set_output_channels (uint32_t cc)
367 CoreAudioBackend::set_systemic_input_latency (uint32_t sl)
369 _systemic_audio_input_latency = sl;
374 CoreAudioBackend::set_systemic_output_latency (uint32_t sl)
376 _systemic_audio_output_latency = sl;
380 /* Retrieving parameters */
382 CoreAudioBackend::device_name () const
388 CoreAudioBackend::input_device_name () const
390 return _input_audio_device;
394 CoreAudioBackend::output_device_name () const
396 return _output_audio_device;
400 CoreAudioBackend::sample_rate () const
406 CoreAudioBackend::buffer_size () const
408 return _samples_per_period;
412 CoreAudioBackend::interleaved () const
418 CoreAudioBackend::input_channels () const
424 CoreAudioBackend::output_channels () const
430 CoreAudioBackend::systemic_input_latency () const
432 return _systemic_audio_input_latency;
436 CoreAudioBackend::systemic_output_latency () const
438 return _systemic_audio_output_latency;
443 std::vector<std::string>
444 CoreAudioBackend::enumerate_midi_options () const
446 if (_midi_options.empty()) {
447 _midi_options.push_back (_("CoreMidi"));
448 _midi_options.push_back (get_standard_device_name(DeviceNone));
450 return _midi_options;
454 CoreAudioBackend::set_midi_option (const std::string& opt)
456 if (opt != get_standard_device_name(DeviceNone) && opt != _("CoreMidi")) {
459 _midi_driver_option = opt;
464 CoreAudioBackend::midi_option () const
466 return _midi_driver_option;
470 CoreAudioBackend::launch_control_app ()
472 if (name_to_id (_input_audio_device) != UINT32_MAX) {
473 _pcmio->launch_control_app(name_to_id(_input_audio_device, Input));
475 if (name_to_id (_output_audio_device) != UINT32_MAX) {
476 _pcmio->launch_control_app(name_to_id(_output_audio_device, Output));
482 static void * pthread_freewheel (void *arg)
484 CoreAudioBackend *d = static_cast<CoreAudioBackend *>(arg);
485 d->freewheel_thread ();
490 static int process_callback_ptr (void *arg, const uint32_t n_samples, const uint64_t host_time)
492 CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
493 return d->process_callback(n_samples, host_time);
497 CoreAudioBackend::_start (bool for_latency_measurement)
499 AudioBackend::ErrorCode error_code = NoError;
501 if ((!_active_ca || !_active_fw) && _run) {
502 // recover from 'halted', reap threads
506 if (_active_ca || _active_fw || _run) {
507 PBD::error << _("CoreAudioBackend: already active.") << endmsg;
508 return BackendReinitializationError;
511 if (_ports.size () || _portmap.size ()) {
512 PBD::warning << _("CoreAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
513 _system_inputs.clear();
514 _system_outputs.clear();
515 _system_midi_in.clear();
516 _system_midi_out.clear();
521 uint32_t device1 = name_to_id(_input_audio_device, Input);
522 uint32_t device2 = name_to_id(_output_audio_device, Output);
524 assert(_active_ca == false);
525 assert(_active_fw == false);
527 _freewheel_ack = false;
528 _reinit_thread_callback = true;
529 _last_process_start = 0;
531 _pcmio->set_error_callback (error_callback_ptr, this);
532 _pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
533 _pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
535 _pcmio->pcm_start (device1, device2, _samplerate, _samples_per_period, process_callback_ptr, this);
537 printf("STATE: %d\n", _pcmio->state ());
539 switch (_pcmio->state ()) {
543 PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
544 error_code = AudioDeviceInvalidError;
547 PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
548 error_code = AudioDeviceNotAvailableError;
551 PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
552 error_code = AudioDeviceOpenError;
555 PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
556 error_code = SampleRateNotSupportedError;
559 PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
560 error_code = PeriodSizeNotSupportedError;
563 PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
564 error_code = SampleFormatNotSupportedError;
567 PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
568 error_code = BackendInitializationError; // XXX
571 PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
572 error_code = OutOfMemoryError;
575 PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
576 error_code = BackendInitializationError; // XXX
579 PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
580 error_code = AudioDeviceIOError;
583 PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
584 error_code = PeriodSizeNotSupportedError;
587 PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
588 error_code = DeviceConfigurationNotSupportedError;
591 PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
592 error_code = BackendInitializationError;
595 if (_pcmio->state ()) {
599 if (_n_outputs != _pcmio->n_playback_channels ()) {
600 if (_n_outputs == 0) {
601 _n_outputs = _pcmio->n_playback_channels ();
603 _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
605 PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
608 if (_n_inputs != _pcmio->n_capture_channels ()) {
609 if (_n_inputs == 0) {
610 _n_inputs = _pcmio->n_capture_channels ();
612 _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
614 PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
617 if (_pcmio->sample_rate() != _samplerate) {
618 _samplerate = _pcmio->sample_rate();
619 engine.sample_rate_change (_samplerate);
620 PBD::warning << _("CoreAudioBackend: sample rate does not match.") << endmsg;
623 _measure_latency = for_latency_measurement;
627 _port_change_flag = false;
629 if (_midi_driver_option == _("CoreMidi")) {
630 _midiio->set_enabled(true);
631 _midiio->set_port_changed_callback(midi_port_change, this);
632 _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
635 if (register_system_audio_ports()) {
636 PBD::error << _("CoreAudioBackend: failed to register system ports.") << endmsg;
638 return PortRegistrationError;
641 engine.sample_rate_change (_samplerate);
642 engine.buffer_size_change (_samples_per_period);
644 if (engine.reestablish_ports ()) {
645 PBD::error << _("CoreAudioBackend: Could not re-establish ports.") << endmsg;
647 return PortReconnectError;
650 if (pthread_create (&_freeewheel_thread, NULL, pthread_freewheel, this))
652 PBD::error << _("CoreAudioBackend: failed to create process thread.") << endmsg;
653 delete _pcmio; _pcmio = 0;
655 return ProcessThreadStartError;
659 while ((!_active_ca || !_active_fw) && --timeout > 0) { Glib::usleep (1000); }
662 PBD::error << _("CoreAudioBackend: failed to start.") << endmsg;
666 PBD::error << _("CoreAudioBackend: failed to start freewheeling thread.") << endmsg;
672 return FreewheelThreadStartError;
676 PBD::error << _("CoreAudioBackend: failed to start coreaudio.") << endmsg;
679 return ProcessThreadStartError;
682 engine.reconnect_ports ();
684 // force an initial registration_callback() & latency re-compute
685 _port_change_flag = true;
689 _pcmio->set_xrun_callback (xrun_callback_ptr, this);
696 CoreAudioBackend::stop ()
705 _midiio->set_port_changed_callback(NULL, NULL);
708 pthread_mutex_lock (&_freewheel_mutex);
709 pthread_cond_signal (&_freewheel_signal);
710 pthread_mutex_unlock (&_freewheel_mutex);
712 if (pthread_join (_freeewheel_thread, &status)) {
713 PBD::error << _("CoreAudioBackend: failed to terminate.") << endmsg;
720 _active_fw = false; // ??
726 CoreAudioBackend::freewheel (bool onoff)
728 if (onoff == _freewheeling) {
731 _freewheeling = onoff;
732 // wake up freewheeling thread
733 if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
734 pthread_cond_signal (&_freewheel_signal);
735 pthread_mutex_unlock (&_freewheel_mutex);
741 CoreAudioBackend::dsp_load () const
743 return 100.f * _dsp_load;
747 CoreAudioBackend::raw_buffer_size (DataType t)
750 case DataType::AUDIO:
751 return _samples_per_period * sizeof(Sample);
753 return _max_buffer_size; // XXX not really limited
760 CoreAudioBackend::sample_time ()
762 return _processed_samples;
766 CoreAudioBackend::sample_time_at_cycle_start ()
768 return _processed_samples;
772 CoreAudioBackend::samples_since_cycle_start ()
774 if (!_active_ca || !_run || _freewheeling || _freewheel) {
777 if (_last_process_start == 0) {
781 const uint64_t now = AudioGetCurrentHostTime ();
782 const int64_t elapsed_time_ns = AudioConvertHostTimeToNanos(now - _last_process_start);
783 return std::max((pframes_t)0, (pframes_t)rint(1e-9 * elapsed_time_ns * _samplerate));
787 CoreAudioBackend::name_to_id(std::string device_name, DeviceFilter filter) const {
788 uint32_t device_id = UINT32_MAX;
789 std::map<size_t, std::string> devices;
792 _pcmio->input_device_list (devices);
795 _pcmio->output_device_list (devices);
798 _pcmio->duplex_device_list (devices);
802 _pcmio->device_list (devices);
806 for (std::map<size_t, std::string>::const_iterator i = devices.begin (); i != devices.end(); ++i) {
807 if (i->second == device_name) {
808 device_id = i->first;
816 CoreAudioBackend::coreaudio_process_thread (void *arg)
818 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
819 boost::function<void ()> f = td->f;
826 CoreAudioBackend::create_process_thread (boost::function<void()> func)
830 size_t stacksize = 100000;
832 ThreadData* td = new ThreadData (this, func, stacksize);
834 if (pbd_realtime_pthread_create (PBD_SCHED_FIFO, -22, stacksize,
835 &thread_id, coreaudio_process_thread, td)) {
836 pthread_attr_init (&attr);
837 pthread_attr_setstacksize (&attr, stacksize);
838 if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
839 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
840 pthread_attr_destroy (&attr);
843 PBD::warning << _("AudioEngine: process thread failed to acquire realtime permissions.") << endmsg;
844 pthread_attr_destroy (&attr);
847 if (pbd_mach_set_realtime_policy (thread_id, 1e9 * _samples_per_period / _samplerate)) {
848 PBD::warning << _("AudioEngine: process thread failed to set mach realtime policy.") << endmsg;
851 _threads.push_back (thread_id);
856 CoreAudioBackend::join_process_threads ()
860 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
863 if (pthread_join (*i, &status)) {
864 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
873 CoreAudioBackend::in_process_thread ()
875 if (pthread_equal (_main_thread, pthread_self()) != 0) {
879 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
881 if (pthread_equal (*i, pthread_self ()) != 0) {
889 CoreAudioBackend::process_thread_count ()
891 return _threads.size ();
895 CoreAudioBackend::update_latencies ()
897 // trigger latency callback in RT thread (locked graph)
898 port_connect_add_remove_callback();
904 CoreAudioBackend::private_handle () const
910 CoreAudioBackend::my_name () const
912 return _instance_name;
916 CoreAudioBackend::available () const
918 return _run && _active_fw && _active_ca;
922 CoreAudioBackend::port_name_size () const
928 CoreAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
930 std::string newname (_instance_name + ":" + name);
931 if (!valid_port (port)) {
932 PBD::warning << _("CoreAudioBackend::set_port_name: Invalid Port(s)") << endmsg;
935 if (find_port (newname)) {
936 PBD::error << _("CoreAudioBackend::set_port_name: Port with given name already exists") << endmsg;
940 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
941 _portmap.erase (p->name());
942 _portmap.insert (make_pair (newname, p));
943 return p->set_name (newname);
947 CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
949 if (!valid_port (port)) {
950 PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
951 return std::string ();
953 return static_cast<CoreBackendPort*>(port)->name ();
957 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
959 if (!valid_port (port)) {
960 PBD::warning << _("CoreAudioBackend::get_port_property: Invalid Port(s)") << endmsg;
963 if (key == "http://jackaudio.org/metadata/pretty-name") {
965 value = static_cast<CoreBackendPort*>(port)->pretty_name ();
966 if (!value.empty()) {
974 CoreAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
976 if (!valid_port (port)) {
977 PBD::warning << _("CoreAudioBackend::set_port_property: Invalid Port(s)") << endmsg;
980 if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
981 static_cast<CoreBackendPort*>(port)->set_pretty_name (value);
987 PortEngine::PortHandle
988 CoreAudioBackend::get_port_by_name (const std::string& name) const
990 PortHandle port = (PortHandle) find_port (name);
995 CoreAudioBackend::get_ports (
996 const std::string& port_name_pattern,
997 DataType type, PortFlags flags,
998 std::vector<std::string>& port_names) const
1002 bool use_regexp = false;
1003 if (port_name_pattern.size () > 0) {
1004 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
1009 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1010 CoreBackendPort* port = *i;
1011 if ((port->type () == type) && flags == (port->flags () & flags)) {
1012 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
1013 port_names.push_back (port->name ());
1019 regfree (&port_regex);
1025 CoreAudioBackend::port_data_type (PortEngine::PortHandle port) const
1027 if (!valid_port (port)) {
1028 return DataType::NIL;
1030 return static_cast<CoreBackendPort*>(port)->type ();
1033 PortEngine::PortHandle
1034 CoreAudioBackend::register_port (
1035 const std::string& name,
1036 ARDOUR::DataType type,
1037 ARDOUR::PortFlags flags)
1039 if (name.size () == 0) { return 0; }
1040 if (flags & IsPhysical) { return 0; }
1041 return add_port (_instance_name + ":" + name, type, flags);
1044 PortEngine::PortHandle
1045 CoreAudioBackend::add_port (
1046 const std::string& name,
1047 ARDOUR::DataType type,
1048 ARDOUR::PortFlags flags)
1050 assert(name.size ());
1051 if (find_port (name)) {
1052 PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
1053 << " (" << name << ")" << endmsg;
1056 CoreBackendPort* port = NULL;
1058 case DataType::AUDIO:
1059 port = new CoreAudioPort (*this, name, flags);
1061 case DataType::MIDI:
1062 port = new CoreMidiPort (*this, name, flags);
1065 PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
1069 _ports.insert (port);
1070 _portmap.insert (make_pair (name, port));
1076 CoreAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
1081 CoreBackendPort* port = static_cast<CoreBackendPort*>(port_handle);
1082 PortIndex::iterator i = std::find (_ports.begin(), _ports.end(), static_cast<CoreBackendPort*>(port_handle));
1083 if (i == _ports.end ()) {
1084 PBD::warning << _("CoreAudioBackend::unregister_port: Failed to find port") << endmsg;
1087 disconnect_all(port_handle);
1088 _portmap.erase (port->name());
1094 CoreAudioBackend::register_system_audio_ports()
1098 const uint32_t a_ins = _n_inputs;
1099 const uint32_t a_out = _n_outputs;
1101 const uint32_t coreaudio_reported_input_latency = _pcmio->get_latency(name_to_id(_input_audio_device, Input), true);
1102 const uint32_t coreaudio_reported_output_latency = _pcmio->get_latency(name_to_id(_output_audio_device, Output), false);
1105 printf("COREAUDIO LATENCY: i:%d, o:%d\n",
1106 coreaudio_reported_input_latency,
1107 coreaudio_reported_output_latency);
1111 lr.min = lr.max = coreaudio_reported_input_latency + (_measure_latency ? 0 : _systemic_audio_input_latency);
1112 for (uint32_t i = 0; i < a_ins; ++i) {
1114 snprintf(tmp, sizeof(tmp), "system:capture_%d", i+1);
1115 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1117 set_latency_range (p, false, lr);
1118 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1119 cp->set_pretty_name (_pcmio->cached_port_name(i, true));
1120 _system_inputs.push_back(cp);
1123 lr.min = lr.max = coreaudio_reported_output_latency + (_measure_latency ? 0 : _systemic_audio_output_latency);
1124 for (uint32_t i = 0; i < a_out; ++i) {
1126 snprintf(tmp, sizeof(tmp), "system:playback_%d", i+1);
1127 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1129 set_latency_range (p, true, lr);
1130 CoreBackendPort *cp = static_cast<CoreBackendPort*>(p);
1131 cp->set_pretty_name (_pcmio->cached_port_name(i, false));
1132 _system_outputs.push_back(cp);
1138 CoreAudioBackend::update_system_port_latecies ()
1140 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1141 (*it)->update_connected_latency (true);
1143 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1144 (*it)->update_connected_latency (false);
1147 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1148 (*it)->update_connected_latency (true);
1150 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1151 (*it)->update_connected_latency (false);
1156 CoreAudioBackend::coremidi_rediscover()
1158 if (!_run) { return; }
1159 assert(_midi_driver_option == _("CoreMidi"));
1161 pthread_mutex_lock (&_process_callback_mutex);
1163 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
1165 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1166 if ((*it)->name() == _midiio->port_id(i, false)) {
1175 printf("unregister MIDI Output: %s\n", (*it)->name().c_str());
1177 _port_change_flag = true;
1178 unregister_port((*it));
1179 it = _system_midi_out.erase(it);
1183 for (std::vector<CoreBackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
1185 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1186 if ((*it)->name() == _midiio->port_id(i, true)) {
1195 printf("unregister MIDI Input: %s\n", (*it)->name().c_str());
1197 _port_change_flag = true;
1198 unregister_port((*it));
1199 it = _system_midi_in.erase(it);
1203 for (size_t i = 0; i < _midiio->n_midi_inputs(); ++i) {
1204 std::string name = _midiio->port_id(i, true);
1205 if (find_port_in(_system_midi_in, name)) {
1210 printf("register MIDI Input: %s\n", name.c_str());
1212 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
1214 fprintf(stderr, "failed to register MIDI IN: %s\n", name.c_str());
1218 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1219 set_latency_range (p, false, lr);
1220 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1221 pp->set_pretty_name(_midiio->port_name(i, true));
1222 _system_midi_in.push_back(pp);
1223 _port_change_flag = true;
1226 for (size_t i = 0; i < _midiio->n_midi_outputs(); ++i) {
1227 std::string name = _midiio->port_id(i, false);
1228 if (find_port_in(_system_midi_out, name)) {
1233 printf("register MIDI OUT: %s\n", name.c_str());
1235 PortHandle p = add_port(name, DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
1237 fprintf(stderr, "failed to register MIDI OUT: %s\n", name.c_str());
1241 lr.min = lr.max = _samples_per_period; // TODO add per-port midi-systemic latency
1242 set_latency_range (p, false, lr);
1243 CoreBackendPort *pp = static_cast<CoreBackendPort*>(p);
1244 pp->set_pretty_name(_midiio->port_name(i, false));
1245 _system_midi_out.push_back(pp);
1246 _port_change_flag = true;
1250 assert(_system_midi_out.size() == _midiio->n_midi_outputs());
1251 assert(_system_midi_in.size() == _midiio->n_midi_inputs());
1253 pthread_mutex_unlock (&_process_callback_mutex);
1257 CoreAudioBackend::unregister_ports (bool system_only)
1259 _system_inputs.clear();
1260 _system_outputs.clear();
1261 _system_midi_in.clear();
1262 _system_midi_out.clear();
1264 for (PortIndex::iterator i = _ports.begin (); i != _ports.end ();) {
1265 PortIndex::iterator cur = i++;
1266 CoreBackendPort* port = *cur;
1267 if (! system_only || (port->is_physical () && port->is_terminal ())) {
1268 port->disconnect_all ();
1269 _portmap.erase (port->name());
1277 CoreAudioBackend::connect (const std::string& src, const std::string& dst)
1279 CoreBackendPort* src_port = find_port (src);
1280 CoreBackendPort* dst_port = find_port (dst);
1283 PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
1284 << " (" << src <<")" << endmsg;
1288 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
1289 << " (" << dst <<")" << endmsg;
1292 return src_port->connect (dst_port);
1296 CoreAudioBackend::disconnect (const std::string& src, const std::string& dst)
1298 CoreBackendPort* src_port = find_port (src);
1299 CoreBackendPort* dst_port = find_port (dst);
1301 if (!src_port || !dst_port) {
1302 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1305 return src_port->disconnect (dst_port);
1309 CoreAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
1311 CoreBackendPort* dst_port = find_port (dst);
1312 if (!valid_port (src)) {
1313 PBD::warning << _("CoreAudioBackend::connect: Invalid Source Port Handle") << endmsg;
1317 PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
1318 << " (" << dst << ")" << endmsg;
1321 return static_cast<CoreBackendPort*>(src)->connect (dst_port);
1325 CoreAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
1327 CoreBackendPort* dst_port = find_port (dst);
1328 if (!valid_port (src) || !dst_port) {
1329 PBD::warning << _("CoreAudioBackend::disconnect: Invalid Port(s)") << endmsg;
1332 return static_cast<CoreBackendPort*>(src)->disconnect (dst_port);
1336 CoreAudioBackend::disconnect_all (PortEngine::PortHandle port)
1338 if (!valid_port (port)) {
1339 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1342 static_cast<CoreBackendPort*>(port)->disconnect_all ();
1347 CoreAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
1349 if (!valid_port (port)) {
1350 PBD::warning << _("CoreAudioBackend::disconnect_all: Invalid Port") << endmsg;
1353 return static_cast<CoreBackendPort*>(port)->is_connected ();
1357 CoreAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
1359 CoreBackendPort* dst_port = find_port (dst);
1361 if (!valid_port (src) || !dst_port) {
1362 PBD::warning << _("CoreAudioBackend::connected_to: Invalid Port") << endmsg;
1366 return static_cast<CoreBackendPort*>(src)->is_connected (dst_port);
1370 CoreAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
1372 if (!valid_port (port)) {
1373 PBD::warning << _("CoreAudioBackend::physically_connected: Invalid Port") << endmsg;
1376 return static_cast<CoreBackendPort*>(port)->is_physically_connected ();
1380 CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
1382 if (!valid_port (port)) {
1383 PBD::warning << _("CoreAudioBackend::get_connections: Invalid Port") << endmsg;
1387 assert (0 == names.size ());
1389 const std::set<CoreBackendPort*>& connected_ports = static_cast<CoreBackendPort*>(port)->get_connections ();
1391 for (std::set<CoreBackendPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
1392 names.push_back ((*i)->name ());
1395 return (int)names.size ();
1400 CoreAudioBackend::midi_event_get (
1401 pframes_t& timestamp,
1402 size_t& size, uint8_t const** buf, void* port_buffer,
1403 uint32_t event_index)
1405 if (!buf || !port_buffer) return -1;
1406 CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
1407 if (event_index >= source.size ()) {
1410 CoreMidiEvent const& event = source[event_index];
1412 timestamp = event.timestamp ();
1413 size = event.size ();
1414 *buf = event.data ();
1419 CoreAudioBackend::_midi_event_put (
1421 pframes_t timestamp,
1422 const uint8_t* buffer, size_t size)
1424 if (!buffer || !port_buffer) return -1;
1425 if (size >= MaxCoreMidiEventSize) {
1428 CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
1430 if (dst.size () && (pframes_t)dst.back ().timestamp () > timestamp) {
1431 // nevermind, ::get_buffer() sorts events
1432 fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
1433 (pframes_t)dst.back ().timestamp (), timestamp);
1436 dst.push_back (CoreMidiEvent (timestamp, buffer, size));
1442 CoreAudioBackend::get_midi_event_count (void* port_buffer)
1444 if (!port_buffer) return 0;
1445 return static_cast<CoreMidiBuffer*>(port_buffer)->size ();
1449 CoreAudioBackend::midi_clear (void* port_buffer)
1451 if (!port_buffer) return;
1452 CoreMidiBuffer * buf = static_cast<CoreMidiBuffer*>(port_buffer);
1460 CoreAudioBackend::can_monitor_input () const
1466 CoreAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
1472 CoreAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
1478 CoreAudioBackend::monitoring_input (PortEngine::PortHandle)
1483 /* Latency management */
1486 CoreAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
1488 if (!valid_port (port)) {
1489 PBD::warning << _("CoreBackendPort::set_latency_range (): invalid port.") << endmsg;
1492 static_cast<CoreBackendPort*>(port)->set_latency_range (latency_range, for_playback);
1496 CoreAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
1499 if (!valid_port (port)) {
1500 PBD::warning << _("CoreBackendPort::get_latency_range (): invalid port.") << endmsg;
1505 CoreBackendPort* p = static_cast<CoreBackendPort*>(port);
1508 r = p->latency_range (for_playback);
1509 if (p->is_physical() && p->is_terminal() && p->type() == DataType::AUDIO) {
1510 if (p->is_input() && for_playback) {
1511 r.min += _samples_per_period;
1512 r.max += _samples_per_period;
1514 if (p->is_output() && !for_playback) {
1515 r.min += _samples_per_period;
1516 r.max += _samples_per_period;
1522 /* Discovering physical ports */
1525 CoreAudioBackend::port_is_physical (PortEngine::PortHandle port) const
1527 if (!valid_port (port)) {
1528 PBD::warning << _("CoreBackendPort::port_is_physical (): invalid port.") << endmsg;
1531 return static_cast<CoreBackendPort*>(port)->is_physical ();
1535 CoreAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
1537 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1538 CoreBackendPort* port = *i;
1539 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
1540 port_names.push_back (port->name ());
1546 CoreAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
1548 for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) {
1549 CoreBackendPort* port = *i;
1550 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
1551 port_names.push_back (port->name ());
1557 CoreAudioBackend::n_physical_outputs () const
1561 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1562 CoreBackendPort* port = *i;
1563 if (port->is_output () && port->is_physical ()) {
1564 switch (port->type ()) {
1565 case DataType::AUDIO: ++n_audio; break;
1566 case DataType::MIDI: ++n_midi; break;
1572 cc.set (DataType::AUDIO, n_audio);
1573 cc.set (DataType::MIDI, n_midi);
1578 CoreAudioBackend::n_physical_inputs () const
1582 for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) {
1583 CoreBackendPort* port = *i;
1584 if (port->is_input () && port->is_physical ()) {
1585 switch (port->type ()) {
1586 case DataType::AUDIO: ++n_audio; break;
1587 case DataType::MIDI: ++n_midi; break;
1593 cc.set (DataType::AUDIO, n_audio);
1594 cc.set (DataType::MIDI, n_midi);
1598 /* Getting access to the data buffer for a port */
1601 CoreAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
1604 assert (valid_port (port));
1605 if (!port || !valid_port (port)) return NULL; // XXX remove me
1606 return static_cast<CoreBackendPort*>(port)->get_buffer (nframes);
1610 CoreAudioBackend::pre_process ()
1612 bool connections_changed = false;
1613 bool ports_changed = false;
1614 if (!pthread_mutex_trylock (&_port_callback_mutex)) {
1615 if (_port_change_flag) {
1616 ports_changed = true;
1617 _port_change_flag = false;
1619 if (!_port_connection_queue.empty ()) {
1620 connections_changed = true;
1622 while (!_port_connection_queue.empty ()) {
1623 PortConnectData *c = _port_connection_queue.back ();
1624 manager.connect_callback (c->a, c->b, c->c);
1625 _port_connection_queue.pop_back ();
1628 pthread_mutex_unlock (&_port_callback_mutex);
1630 if (ports_changed) {
1631 manager.registration_callback();
1633 if (connections_changed) {
1634 manager.graph_order_callback();
1636 if (connections_changed || ports_changed) {
1637 update_system_port_latecies ();
1638 engine.latency_callback(false);
1639 engine.latency_callback(true);
1644 CoreAudioBackend::reset_midi_parsers ()
1646 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1647 CoreMidiPort* port = dynamic_cast<CoreMidiPort*>(*it);
1649 port->reset_parser ();
1655 CoreAudioBackend::freewheel_thread ()
1658 bool first_run = false;
1659 /* Freewheeling - use for export. The first call to
1660 * engine.process_callback() after engine.freewheel_callback will
1661 * if the first export cycle.
1662 * For reliable precise export timing, the calls need to be in sync.
1664 * Furthermore we need to make sure the registered process thread
1667 * _freewheeling = GUI thread state as set by ::freewheel()
1668 * _freewheel = in sync here (export thread)
1670 pthread_mutex_lock (&_freewheel_mutex);
1672 // check if we should run,
1673 if (_freewheeling != _freewheel) {
1674 if (!_freewheeling) {
1675 // prepare leaving freewheeling mode
1676 _freewheel = false; // first mark as disabled
1677 _reinit_thread_callback = true; // hand over _main_thread
1678 _freewheel_ack = false; // prepare next handshake
1679 reset_midi_parsers ();
1680 _midiio->set_enabled(true);
1681 engine.freewheel_callback (_freewheeling);
1688 if (!_freewheel || !_freewheel_ack) {
1689 // wait for a change, we use a timed wait to
1690 // terminate early in case some error sets _run = 0
1693 gettimeofday (&tv, NULL);
1694 ts.tv_sec = tv.tv_sec + 3;
1696 pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
1701 // tell the engine we're ready to GO.
1702 engine.freewheel_callback (_freewheeling);
1704 _main_thread = pthread_self();
1705 AudioEngine::thread_init_callback (this);
1706 _midiio->set_enabled(false);
1707 reset_midi_parsers ();
1708 pbd_mach_set_realtime_policy (_main_thread, 1e9 * _samples_per_period / _samplerate);
1711 // process port updates first in every cycle.
1714 // prevent coreaudio device changes
1715 pthread_mutex_lock (&_process_callback_mutex);
1719 // clear input buffers
1720 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
1721 memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
1723 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
1724 static_cast<CoreMidiBuffer*>((*it)->get_buffer(0))->clear ();
1727 _last_process_start = 0;
1728 if (engine.process_callback (_samples_per_period)) {
1729 pthread_mutex_unlock (&_process_callback_mutex);
1733 pthread_mutex_unlock (&_process_callback_mutex);
1735 Glib::usleep (100); // don't hog cpu
1738 pthread_mutex_unlock (&_freewheel_mutex);
1743 // engine.process_callback() returner error
1744 engine.halted_callback("CoreAudio Freehweeling aborted.");
1749 CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
1756 if (_run && _freewheel && !_freewheel_ack) {
1757 // acknowledge freewheeling; hand-over thread ID
1758 pthread_mutex_lock (&_freewheel_mutex);
1759 if (_freewheel) _freewheel_ack = true;
1760 pthread_cond_signal (&_freewheel_signal);
1761 pthread_mutex_unlock (&_freewheel_mutex);
1764 if (!_run || _freewheel || _preinit) {
1765 // NB if we return 1, the output is
1766 // zeroed by the coreaudio callback
1770 if (_reinit_thread_callback || _main_thread != pthread_self()) {
1771 _reinit_thread_callback = false;
1772 _main_thread = pthread_self();
1773 AudioEngine::thread_init_callback (this);
1774 pbd_mach_set_realtime_policy (_main_thread, 1e9 * _samples_per_period / _samplerate);
1777 if (pthread_mutex_trylock (&_process_callback_mutex)) {
1778 // block while devices are added/removed
1780 printf("Xrun due to device change\n");
1785 /* port-connection change */
1788 // cycle-length in usec
1789 const double nominal_time = 1e6 * n_samples / _samplerate;
1791 clock1 = g_get_monotonic_time();
1795 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
1796 CoreMidiPort* port = dynamic_cast<CoreMidiPort*> (*it);
1801 uint8_t data[MaxCoreMidiEventSize];
1802 size_t size = sizeof(data);
1804 port->clear_events ();
1806 while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
1807 pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
1808 assert (time < n_samples);
1809 port->parse_events (time, data, size);
1810 size = sizeof(data); /* prepare for next call to recv_event */
1816 for (std::vector<CoreBackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
1817 _pcmio->get_capture_channel (i, (float*)((*it)->get_buffer(n_samples)), n_samples);
1820 /* clear output buffers */
1821 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
1822 memset ((*it)->get_buffer (n_samples), 0, n_samples * sizeof (Sample));
1825 _midiio->start_cycle();
1826 _last_process_start = host_time;
1828 if (engine.process_callback (n_samples)) {
1829 fprintf(stderr, "ENGINE PROCESS ERROR\n");
1830 //_pcmio->pcm_stop ();
1832 pthread_mutex_unlock (&_process_callback_mutex);
1837 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
1838 static_cast<CoreMidiPort*>(*it)->get_buffer(0);
1841 /* queue outgoing midi */
1843 for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
1844 const CoreMidiBuffer *src = static_cast<const CoreMidiPort*>(*it)->const_buffer();
1845 for (CoreMidiBuffer::const_iterator mit = src->begin (); mit != src->end (); ++mit) {
1846 _midiio->send_event (i, mit->timestamp (), mit->data (), mit->size ());
1850 /* write back audio */
1852 for (std::vector<CoreBackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
1853 _pcmio->set_playback_channel (i, (float const*)(*it)->get_buffer (n_samples), n_samples);
1856 _processed_samples += n_samples;
1858 /* calc DSP load. */
1859 _dsp_load_calc.set_max_time (_samplerate, _samples_per_period);
1860 _dsp_load_calc.set_start_timestamp_us (clock1);
1861 _dsp_load_calc.set_stop_timestamp_us (g_get_monotonic_time());
1862 _dsp_load = _dsp_load_calc.get_dsp_load ();
1864 pthread_mutex_unlock (&_process_callback_mutex);
1869 CoreAudioBackend::error_callback ()
1871 _pcmio->set_error_callback (NULL, NULL);
1872 _pcmio->set_sample_rate_callback (NULL, NULL);
1873 _pcmio->set_xrun_callback (NULL, NULL);
1874 _midiio->set_port_changed_callback(NULL, NULL);
1875 engine.halted_callback("CoreAudio Process aborted.");
1880 CoreAudioBackend::xrun_callback ()
1886 CoreAudioBackend::buffer_size_callback ()
1888 uint32_t bs = _pcmio->samples_per_period();
1889 if (bs == _samples_per_period) {
1892 _samples_per_period = bs;
1893 engine.buffer_size_change (_samples_per_period);
1897 CoreAudioBackend::sample_rate_callback ()
1901 printf("Samplerate change during initialization.\n");
1905 _pcmio->set_error_callback (NULL, NULL);
1906 _pcmio->set_sample_rate_callback (NULL, NULL);
1907 _pcmio->set_xrun_callback (NULL, NULL);
1908 _midiio->set_port_changed_callback(NULL, NULL);
1909 engine.halted_callback("Sample Rate Changed.");
1914 CoreAudioBackend::hw_changed_callback ()
1916 _reinit_thread_callback = true;
1917 engine.request_device_list_update();
1920 /******************************************************************************/
1922 static boost::shared_ptr<CoreAudioBackend> _instance;
1924 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1925 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1926 static int deinstantiate ();
1927 static bool already_configured ();
1928 static bool available ();
1930 static ARDOUR::AudioBackendInfo _descriptor = {
1939 static boost::shared_ptr<AudioBackend>
1940 backend_factory (AudioEngine& e)
1943 _instance.reset (new CoreAudioBackend (e, _descriptor));
1949 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1951 s_instance_name = arg1;
1963 already_configured ()
1974 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1976 return &_descriptor;
1980 /******************************************************************************/
1981 CoreBackendPort::CoreBackendPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
1986 _capture_latency_range.min = 0;
1987 _capture_latency_range.max = 0;
1988 _playback_latency_range.min = 0;
1989 _playback_latency_range.max = 0;
1992 CoreBackendPort::~CoreBackendPort () {
1997 int CoreBackendPort::connect (CoreBackendPort *port)
2000 PBD::warning << _("CoreBackendPort::connect (): invalid (null) port") << endmsg;
2004 if (type () != port->type ()) {
2005 PBD::warning << _("CoreBackendPort::connect (): wrong port-type") << endmsg;
2009 if (is_output () && port->is_output ()) {
2010 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect output ports.") << endmsg;
2014 if (is_input () && port->is_input ()) {
2015 PBD::warning << _("CoreBackendPort::connect (): cannot inter-connect input ports.") << endmsg;
2020 PBD::warning << _("CoreBackendPort::connect (): cannot self-connect ports.") << endmsg;
2024 if (is_connected (port)) {
2025 #if 0 // don't bother to warn about this for now. just ignore it
2026 PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
2027 << " (" << name () << ") -> (" << port->name () << ")"
2033 _connect (port, true);
2038 void CoreBackendPort::_connect (CoreBackendPort *port, bool callback)
2040 _connections.insert (port);
2042 port->_connect (this, false);
2043 _osx_backend.port_connect_callback (name(), port->name(), true);
2047 int CoreBackendPort::disconnect (CoreBackendPort *port)
2050 PBD::warning << _("CoreBackendPort::disconnect (): invalid (null) port") << endmsg;
2054 if (!is_connected (port)) {
2055 PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
2056 << " (" << name () << ") -> (" << port->name () << ")"
2060 _disconnect (port, true);
2064 void CoreBackendPort::_disconnect (CoreBackendPort *port, bool callback)
2066 std::set<CoreBackendPort*>::iterator it = _connections.find (port);
2067 assert (it != _connections.end ());
2068 _connections.erase (it);
2070 port->_disconnect (this, false);
2071 _osx_backend.port_connect_callback (name(), port->name(), false);
2075 void CoreBackendPort::disconnect_all ()
2077 while (!_connections.empty ()) {
2078 std::set<CoreBackendPort*>::iterator it = _connections.begin ();
2079 (*it)->_disconnect (this, false);
2080 _osx_backend.port_connect_callback (name(), (*it)->name(), false);
2081 _connections.erase (it);
2086 CoreBackendPort::is_connected (const CoreBackendPort *port) const
2088 return _connections.find (const_cast<CoreBackendPort *>(port)) != _connections.end ();
2091 bool CoreBackendPort::is_physically_connected () const
2093 for (std::set<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2094 if ((*it)->is_physical ()) {
2102 CoreBackendPort::set_latency_range (const LatencyRange &latency_range, bool for_playback)
2105 _playback_latency_range = latency_range;
2107 _capture_latency_range = latency_range;
2110 for (std::set<CoreBackendPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
2111 if ((*it)->is_physical ()) {
2112 (*it)->update_connected_latency (is_input ());
2118 CoreBackendPort::update_connected_latency (bool for_playback)
2121 lr.min = lr.max = 0;
2122 const std::set<CoreBackendPort *>& cp = get_connections ();
2123 for (std::set<CoreBackendPort*>::const_iterator it = cp.begin (); it != cp.end (); ++it) {
2125 l = (*it)->latency_range (for_playback);
2126 lr.min = std::max (lr.min, l.min);
2127 lr.max = std::max (lr.max, l.max);
2129 set_latency_range (lr, for_playback);
2132 /******************************************************************************/
2134 CoreAudioPort::CoreAudioPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2135 : CoreBackendPort (b, name, flags)
2137 memset (_buffer, 0, sizeof (_buffer));
2138 mlock(_buffer, sizeof (_buffer));
2141 CoreAudioPort::~CoreAudioPort () { }
2143 void* CoreAudioPort::get_buffer (pframes_t n_samples)
2146 const std::set<CoreBackendPort *>& connections = get_connections ();
2147 std::set<CoreBackendPort*>::const_iterator it = connections.begin ();
2148 if (it == connections.end ()) {
2149 memset (_buffer, 0, n_samples * sizeof (Sample));
2151 CoreAudioPort const * source = static_cast<const CoreAudioPort*>(*it);
2152 assert (source && source->is_output ());
2153 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
2154 while (++it != connections.end ()) {
2155 source = static_cast<const CoreAudioPort*>(*it);
2156 assert (source && source->is_output ());
2157 Sample* dst = buffer ();
2158 const Sample* src = source->const_buffer ();
2159 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
2169 CoreMidiPort::CoreMidiPort (CoreAudioBackend &b, const std::string& name, PortFlags flags)
2170 : CoreBackendPort (b, name, flags)
2175 , _unbuffered_bytes(0)
2177 , _expected_bytes(0)
2181 _buffer[0].clear ();
2182 _buffer[1].clear ();
2184 _buffer[0].reserve (256);
2185 _buffer[1].reserve (256);
2188 CoreMidiPort::~CoreMidiPort () { }
2190 struct MidiEventSorter {
2191 bool operator() (CoreMidiEvent const& a, CoreMidiEvent const& b) {
2196 void* CoreMidiPort::get_buffer (pframes_t /* nframes */)
2199 (_buffer[_bufperiod]).clear ();
2200 const std::set<CoreBackendPort*>& connections = get_connections ();
2201 for (std::set<CoreBackendPort*>::const_iterator i = connections.begin ();
2202 i != connections.end ();
2204 const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
2205 for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
2206 (_buffer[_bufperiod]).push_back (*it);
2209 std::stable_sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
2212 return &(_buffer[_bufperiod]);
2216 CoreMidiPort::queue_event (
2218 pframes_t timestamp,
2219 const uint8_t* buffer, size_t size)
2221 const int ret = CoreAudioBackend::_midi_event_put (port_buffer, timestamp, buffer, size);
2222 if (!ret) { /* success */
2223 _event._pending = false;
2229 CoreMidiPort::reset_parser ()
2231 _event._pending = false;
2233 _unbuffered_bytes = 0;
2235 _expected_bytes = 0;
2240 CoreMidiPort::clear_events ()
2242 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2247 CoreMidiPort::parse_events (const uint64_t time, const uint8_t *data, const size_t size)
2249 CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
2251 if (_event._pending) {
2252 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2257 for (size_t i = 0; i < size; ++i) {
2258 if (_first_time && !(data[i] & 0x80)) {
2262 _first_time = false;
2264 if (process_byte(time, data[i])) {
2265 if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
2272 // based on JackMidiRawInputWriteQueue by Devin Anderson //
2274 CoreMidiPort::process_byte(const uint64_t time, const uint8_t byte)
2281 _parser_buffer[0] = byte;
2282 prepare_byte_event(time, byte);
2287 if (_status_byte == 0xf0) {
2289 return prepare_buffered_event(time);
2292 _unbuffered_bytes = 0;
2293 _expected_bytes = 0;
2298 // Non-realtime status byte
2300 printf ("CoreMidiPort: discarded bogus midi message\n");
2302 for (size_t i=0; i < _total_bytes; ++i) {
2303 printf("%02x ", _parser_buffer[i]);
2308 _unbuffered_bytes = 0;
2310 _status_byte = byte;
2311 switch (byte & 0xf0) {
2317 // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
2318 _expected_bytes = 3;
2322 // Program Change, Channel Pressure
2323 _expected_bytes = 2;
2329 _expected_bytes = 0;
2333 // MTC Quarter Frame, Song Select
2334 _expected_bytes = 2;
2338 _expected_bytes = 3;
2343 _expected_bytes = 0;
2348 prepare_byte_event(time, byte);
2349 _expected_bytes = 0;
2358 if (! _status_byte) {
2359 // Data bytes without a status will be discarded.
2361 _unbuffered_bytes++;
2364 if (! _total_bytes) {
2365 record_byte(_status_byte);
2368 return (_total_bytes == _expected_bytes) ? prepare_buffered_event(time) : false;
2372 CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
2374 , _timestamp (timestamp)
2376 if (size > 0 && size < MaxCoreMidiEventSize) {
2377 memcpy (_data, data, size);
2381 CoreMidiEvent::CoreMidiEvent (const CoreMidiEvent& other)
2382 : _size (other.size ())
2383 , _timestamp (other.timestamp ())
2385 if (other._size > 0) {
2386 assert (other._size < MaxCoreMidiEventSize);
2387 memcpy (_data, other._data, other._size);