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.
23 #include "dummy_audiobackend.h"
24 #include "pbd/error.h"
27 using namespace ARDOUR;
29 static std::string s_instance_name;
30 size_t DummyAudioBackend::_max_buffer_size = 8192;
32 DummyAudioBackend::DummyAudioBackend (AudioEngine& e, AudioBackendInfo& info)
33 : AudioBackend (e, info)
35 , _freewheeling (false)
37 , _samples_per_period (1024)
43 , _systemic_input_latency (0)
44 , _systemic_output_latency (0)
45 , _processed_samples (0)
47 _instance_name = s_instance_name;
50 DummyAudioBackend::~DummyAudioBackend ()
54 /* AUDIOBACKEND API */
57 DummyAudioBackend::name () const
63 DummyAudioBackend::is_realtime () const
68 std::vector<AudioBackend::DeviceStatus>
69 DummyAudioBackend::enumerate_devices () const
71 std::vector<AudioBackend::DeviceStatus> s;
72 s.push_back (DeviceStatus (_("Dummy"), true));
77 DummyAudioBackend::available_sample_rates (const std::string&) const
79 std::vector<float> sr;
80 sr.push_back (8000.0);
81 sr.push_back (22050.0);
82 sr.push_back (24000.0);
83 sr.push_back (44100.0);
84 sr.push_back (48000.0);
85 sr.push_back (88200.0);
86 sr.push_back (96000.0);
87 sr.push_back (176400.0);
88 sr.push_back (192000.0);
93 DummyAudioBackend::available_buffer_sizes (const std::string&) const
95 std::vector<uint32_t> bs;
112 DummyAudioBackend::available_input_channel_count (const std::string&) const
118 DummyAudioBackend::available_output_channel_count (const std::string&) const
124 DummyAudioBackend::can_change_sample_rate_when_running () const
130 DummyAudioBackend::can_change_buffer_size_when_running () const
136 DummyAudioBackend::set_device_name (const std::string&)
142 DummyAudioBackend::set_sample_rate (float sr)
144 if (sr <= 0) { return -1; }
146 engine.sample_rate_change (sr);
151 DummyAudioBackend::set_buffer_size (uint32_t bs)
153 if (bs <= 0 || bs >= _max_buffer_size) {
156 _samples_per_period = bs;
157 engine.buffer_size_change (bs);
162 DummyAudioBackend::set_interleaved (bool yn)
164 if (!yn) { return 0; }
169 DummyAudioBackend::set_input_channels (uint32_t cc)
176 DummyAudioBackend::set_output_channels (uint32_t cc)
183 DummyAudioBackend::set_systemic_input_latency (uint32_t sl)
185 _systemic_input_latency = sl;
190 DummyAudioBackend::set_systemic_output_latency (uint32_t sl)
192 _systemic_output_latency = sl;
196 /* Retrieving parameters */
198 DummyAudioBackend::device_name () const
200 return _("Dummy Device");
204 DummyAudioBackend::sample_rate () const
210 DummyAudioBackend::buffer_size () const
212 return _samples_per_period;
216 DummyAudioBackend::interleaved () const
222 DummyAudioBackend::input_channels () const
228 DummyAudioBackend::output_channels () const
234 DummyAudioBackend::systemic_input_latency () const
236 return _systemic_input_latency;
240 DummyAudioBackend::systemic_output_latency () const
242 return _systemic_output_latency;
246 std::vector<std::string>
247 DummyAudioBackend::enumerate_midi_options () const
249 std::vector<std::string> m;
250 m.push_back (_("None"));
255 DummyAudioBackend::set_midi_option (const std::string&)
261 DummyAudioBackend::midi_option () const
268 static void * pthread_process (void *arg)
270 DummyAudioBackend *d = static_cast<DummyAudioBackend *>(arg);
271 d->main_process_thread ();
277 DummyAudioBackend::_start (bool /*for_latency_measurement*/)
280 PBD::error << _("DummyAudioBackend: already active.") << endmsg;
285 PBD::warning << _("DummyAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
289 if (register_system_ports()) {
290 PBD::error << _("DummyAudioBackend: failed to register system ports.") << endmsg;
294 if (engine.reestablish_ports ()) {
295 PBD::error << _("DummyAudioBackend: Could not re-establish ports.") << endmsg;
300 engine.reconnect_ports ();
302 if (pthread_create (&_main_thread, NULL, pthread_process, this)) {
303 PBD::error << _("DummyAudioBackend: cannot start.") << endmsg;
307 while (!_running && --timeout > 0) { usleep (1000); }
309 if (timeout == 0 || !_running) {
310 PBD::error << _("DummyAudioBackend: failed to start process thread.") << endmsg;
318 DummyAudioBackend::stop ()
326 if (pthread_join (_main_thread, &status)) {
327 PBD::error << _("DummyAudioBackend: failed to terminate.") << endmsg;
330 unregister_system_ports();
335 DummyAudioBackend::freewheel (bool onoff)
337 if (onoff == _freewheeling) {
340 _freewheeling = onoff;
341 engine.freewheel_callback (onoff);
346 DummyAudioBackend::dsp_load () const
348 return 100.f * _dsp_load;
352 DummyAudioBackend::raw_buffer_size (DataType t)
355 case DataType::AUDIO:
356 return _max_buffer_size * sizeof(Sample);
358 return _max_buffer_size; // XXX not really limited
365 DummyAudioBackend::sample_time ()
367 return _processed_samples;
371 DummyAudioBackend::sample_time_at_cycle_start ()
373 return _processed_samples;
377 DummyAudioBackend::samples_since_cycle_start ()
384 DummyAudioBackend::dummy_process_thread (void *arg)
386 ThreadData* td = reinterpret_cast<ThreadData*> (arg);
387 boost::function<void ()> f = td->f;
394 DummyAudioBackend::create_process_thread (boost::function<void()> func)
398 size_t stacksize = 100000;
400 pthread_attr_init (&attr);
401 pthread_attr_setstacksize (&attr, stacksize);
402 ThreadData* td = new ThreadData (this, func, stacksize);
404 if (pthread_create (&thread_id, &attr, dummy_process_thread, td)) {
405 PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
409 _threads.push_back (thread_id);
414 DummyAudioBackend::join_process_threads ()
418 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
421 if (pthread_join (*i, &status)) {
422 PBD::error << _("AudioEngine: cannot terminate process thread.") << endmsg;
431 DummyAudioBackend::in_process_thread ()
433 for (std::vector<pthread_t>::const_iterator i = _threads.begin (); i != _threads.end (); ++i)
435 #ifdef COMPILER_MINGW
436 if (*i == GetCurrentThread ()) {
440 if (pthread_equal (*i, pthread_self ()) != 0) {
449 DummyAudioBackend::process_thread_count ()
451 return _threads.size ();
455 DummyAudioBackend::update_latencies ()
462 DummyAudioBackend::private_handle () const
468 DummyAudioBackend::my_name () const
470 return _instance_name;
474 DummyAudioBackend::available () const
480 DummyAudioBackend::port_name_size () const
486 DummyAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
488 if (!valid_port (port)) {
489 PBD::error << _("DummyBackend::set_port_name: Invalid Port(s)") << endmsg;
492 return static_cast<DummyPort*>(port)->set_name (_instance_name + ":" + name);
496 DummyAudioBackend::get_port_name (PortEngine::PortHandle port) const
498 if (!valid_port (port)) {
499 PBD::error << _("DummyBackend::get_port_name: Invalid Port(s)") << endmsg;
500 return std::string ();
502 return static_cast<DummyPort*>(port)->name ();
505 PortEngine::PortHandle
506 DummyAudioBackend::get_port_by_name (const std::string& name) const
508 PortHandle port = (PortHandle) find_port (name);
513 DummyAudioBackend::get_ports (
514 const std::string& port_name_pattern,
515 DataType type, PortFlags flags,
516 std::vector<std::string>& port_names) const
520 bool use_regexp = false;
521 if (port_name_pattern.size () > 0) {
522 if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
526 for (size_t i = 0; i < _ports.size (); ++i) {
527 DummyPort* port = _ports[i];
528 if ((port->type () == type) && (port->flags () & flags)) {
529 if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
530 port_names.push_back (port->name ());
536 regfree (&port_regex);
542 DummyAudioBackend::port_data_type (PortEngine::PortHandle port) const
544 if (!valid_port (port)) {
545 return DataType::NIL;
547 return static_cast<DummyPort*>(port)->type ();
550 PortEngine::PortHandle
551 DummyAudioBackend::register_port (
552 const std::string& name,
553 ARDOUR::DataType type,
554 ARDOUR::PortFlags flags)
556 if (name.size () == 0) { return 0; }
557 if (flags & IsPhysical) { return 0; }
558 return add_port (_instance_name + ":" + name, type, flags);
561 PortEngine::PortHandle
562 DummyAudioBackend::add_port (
563 const std::string& name,
564 ARDOUR::DataType type,
565 ARDOUR::PortFlags flags)
567 assert(name.size ());
568 if (find_port (name)) {
569 PBD::error << _("DummyBackend::register_port: Port already exists:")
570 << " (" << name << ")" << endmsg;
573 DummyPort* port = NULL;
575 case DataType::AUDIO:
576 port = new DummyAudioPort (name, flags);
579 port = new DummyMidiPort (name, flags);
582 PBD::error << _("DummyBackend::register_port: Invalid Data Type.") << endmsg;
586 _ports.push_back (port);
592 DummyAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
594 if (!valid_port (port_handle)) {
595 PBD::error << _("DummyBackend::unregister_port: Invalid Port.") << endmsg;
597 DummyPort* port = static_cast<DummyPort*>(port_handle);
598 std::vector<DummyPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<DummyPort*>(port_handle));
599 if (i == _ports.end ()) {
600 PBD::error << _("DummyBackend::unregister_port: Failed to find port") << endmsg;
603 disconnect_all(port_handle);
609 DummyAudioBackend::register_system_ports()
613 const int a_ins = _n_inputs > 0 ? _n_inputs : 8;
614 const int a_out = _n_outputs > 0 ? _n_outputs : 8;
615 const int m_ins = _n_midi_inputs > 0 ? _n_midi_inputs : 2;
616 const int m_out = _n_midi_outputs > 0 ? _n_midi_outputs : 2;
619 lr.min = lr.max = _samples_per_period + _systemic_input_latency;
620 for (int i = 1; i <= a_ins; ++i) {
622 snprintf(tmp, sizeof(tmp), "system:capture_%d", i);
623 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
625 set_latency_range (p, false, lr);
628 lr.min = lr.max = _samples_per_period + _systemic_output_latency;
629 for (int i = 1; i <= a_out; ++i) {
631 snprintf(tmp, sizeof(tmp), "system:playback_%d", i);
632 PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
634 set_latency_range (p, false, lr);
638 lr.min = lr.max = _samples_per_period + _systemic_input_latency;
639 for (int i = 1; i <= m_ins; ++i) {
641 snprintf(tmp, sizeof(tmp), "system:midi_capture_%d", i);
642 PortHandle p = add_port(std::string(tmp), DataType::MIDI, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
644 set_latency_range (p, false, lr);
647 lr.min = lr.max = _samples_per_period + _systemic_output_latency;
648 for (int i = 1; i <= m_out; ++i) {
650 snprintf(tmp, sizeof(tmp), "system:midi_playback_%d", i);
651 PortHandle p = add_port(std::string(tmp), DataType::MIDI, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
653 set_latency_range (p, false, lr);
660 DummyAudioBackend::unregister_system_ports()
663 while (i < _ports.size ()) {
664 DummyPort* port = _ports[i];
665 if (port->is_physical () && port->is_terminal ()) {
666 port->disconnect_all ();
667 _ports.erase (_ports.begin() + i);
675 DummyAudioBackend::connect (const std::string& src, const std::string& dst)
677 DummyPort* src_port = find_port (src);
678 DummyPort* dst_port = find_port (dst);
681 PBD::error << _("DummyBackend::connect: Invalid Source port:")
682 << " (" << src <<")" << endmsg;
686 PBD::error << _("DummyBackend::connect: Invalid Destination port:")
687 << " (" << dst <<")" << endmsg;
690 return src_port->connect (dst_port);
694 DummyAudioBackend::disconnect (const std::string& src, const std::string& dst)
696 DummyPort* src_port = find_port (src);
697 DummyPort* dst_port = find_port (dst);
699 if (!src_port || !dst_port) {
700 PBD::error << _("DummyBackend::disconnect: Invalid Port(s)") << endmsg;
703 return src_port->disconnect (dst_port);
707 DummyAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
709 DummyPort* dst_port = find_port (dst);
710 if (!valid_port (src)) {
711 PBD::error << _("DummyBackend::connect: Invalid Source Port Handle") << endmsg;
715 PBD::error << _("DummyBackend::connect: Invalid Destination Port")
716 << " (" << dst << ")" << endmsg;
719 return static_cast<DummyPort*>(src)->connect (dst_port);
723 DummyAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
725 DummyPort* dst_port = find_port (dst);
726 if (!valid_port (src) || !dst_port) {
727 PBD::error << _("DummyBackend::disconnect: Invalid Port(s)") << endmsg;
730 return static_cast<DummyPort*>(src)->disconnect (dst_port);
734 DummyAudioBackend::disconnect_all (PortEngine::PortHandle port)
736 if (!valid_port (port)) {
737 PBD::error << _("DummyBackend::disconnect_all: Invalid Port") << endmsg;
740 static_cast<DummyPort*>(port)->disconnect_all ();
745 DummyAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
747 if (!valid_port (port)) {
748 PBD::error << _("DummyBackend::disconnect_all: Invalid Port") << endmsg;
751 return static_cast<DummyPort*>(port)->is_connected ();
755 DummyAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
757 DummyPort* dst_port = find_port (dst);
758 if (!valid_port (src) || !dst_port) {
759 PBD::error << _("DummyBackend::connected_to: Invalid Port") << endmsg;
762 return static_cast<DummyPort*>(src)->is_connected (dst_port);
766 DummyAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
768 if (!valid_port (port)) {
769 PBD::error << _("DummyBackend::physically_connected: Invalid Port") << endmsg;
772 return static_cast<DummyPort*>(port)->is_physically_connected ();
776 DummyAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
778 if (!valid_port (port)) {
779 PBD::error << _("DummyBackend::get_connections: Invalid Port") << endmsg;
783 assert (0 == names.size ());
785 const std::vector<DummyPort*>& connected_ports = static_cast<DummyPort*>(port)->get_connections ();
787 for (std::vector<DummyPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
788 names.push_back ((*i)->name ());
791 return (int)names.size ();
796 DummyAudioBackend::midi_event_get (
797 pframes_t& timestamp,
798 size_t& size, uint8_t** buf, void* port_buffer,
799 uint32_t event_index)
801 assert (buf && port_buffer);
802 DummyMidiBuffer& source = * static_cast<DummyMidiBuffer*>(port_buffer);
803 if (event_index >= source.size ()) {
806 DummyMidiEvent * const event = source[event_index].get ();
808 timestamp = event->timestamp ();
809 size = event->size ();
810 *buf = event->data ();
815 DummyAudioBackend::midi_event_put (
818 const uint8_t* buffer, size_t size)
820 assert (buffer && port_buffer);
821 DummyMidiBuffer& dst = * static_cast<DummyMidiBuffer*>(port_buffer);
822 if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
823 fprintf (stderr, "DummyMidiBuffer: it's too late for this event.\n");
826 dst.push_back (boost::shared_ptr<DummyMidiEvent>(new DummyMidiEvent (timestamp, buffer, size)));
831 DummyAudioBackend::get_midi_event_count (void* port_buffer)
833 assert (port_buffer && _running);
834 return static_cast<DummyMidiBuffer*>(port_buffer)->size ();
838 DummyAudioBackend::midi_clear (void* port_buffer)
840 assert (port_buffer && _running);
841 DummyMidiBuffer * buf = static_cast<DummyMidiBuffer*>(port_buffer);
849 DummyAudioBackend::can_monitor_input () const
855 DummyAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
861 DummyAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
867 DummyAudioBackend::monitoring_input (PortEngine::PortHandle)
872 /* Latency management */
875 DummyAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
877 if (!valid_port (port)) {
878 PBD::error << _("DummyPort::set_latency_range (): invalid port.") << endmsg;
880 static_cast<DummyPort*>(port)->set_latency_range (latency_range, for_playback);
884 DummyAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
886 if (!valid_port (port)) {
887 PBD::error << _("DummyPort::get_latency_range (): invalid port.") << endmsg;
893 return static_cast<DummyPort*>(port)->latency_range (for_playback);
896 /* Discovering physical ports */
899 DummyAudioBackend::port_is_physical (PortEngine::PortHandle port) const
901 if (!valid_port (port)) {
902 PBD::error << _("DummyPort::port_is_physical (): invalid port.") << endmsg;
905 return static_cast<DummyPort*>(port)->is_physical ();
909 DummyAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
911 for (size_t i = 0; i < _ports.size (); ++i) {
912 DummyPort* port = _ports[i];
913 if ((port->type () == type) && port->is_output () && port->is_physical ()) {
914 port_names.push_back (port->name ());
920 DummyAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
922 for (size_t i = 0; i < _ports.size (); ++i) {
923 DummyPort* port = _ports[i];
924 if ((port->type () == type) && port->is_input () && port->is_physical ()) {
925 port_names.push_back (port->name ());
931 DummyAudioBackend::n_physical_outputs () const
935 for (size_t i = 0; i < _ports.size (); ++i) {
936 DummyPort* port = _ports[i];
937 if (port->is_output () && port->is_physical ()) {
938 switch (port->type ()) {
939 case DataType::AUDIO: ++n_audio; break;
940 case DataType::MIDI: ++n_midi; break;
946 cc.set (DataType::AUDIO, n_audio);
947 cc.set (DataType::MIDI, n_midi);
952 DummyAudioBackend::n_physical_inputs () const
956 for (size_t i = 0; i < _ports.size (); ++i) {
957 DummyPort* port = _ports[i];
958 if (port->is_input () && port->is_physical ()) {
959 switch (port->type ()) {
960 case DataType::AUDIO: ++n_audio; break;
961 case DataType::MIDI: ++n_midi; break;
967 cc.set (DataType::AUDIO, n_audio);
968 cc.set (DataType::MIDI, n_midi);
972 /* Getting access to the data buffer for a port */
975 DummyAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
977 assert (port && _running);
978 assert (valid_port (port));
979 return static_cast<DummyPort*>(port)->get_buffer (nframes);
984 DummyAudioBackend::main_process_thread ()
986 AudioEngine::thread_init_callback (this);
988 _processed_samples = 0;
990 struct timeval clock1, clock2;
991 ::gettimeofday (&clock1, NULL);
993 if (engine.process_callback (_samples_per_period)) {
996 _processed_samples += _samples_per_period;
997 if (!_freewheeling) {
998 ::gettimeofday (&clock2, NULL);
999 const int elapsed_time = (clock2.tv_sec - clock1.tv_sec) * 1000000 + (clock2.tv_usec - clock1.tv_usec);
1000 const int nomial_time = 1000000 * _samples_per_period / _samplerate;
1001 _dsp_load = elapsed_time / (float) nomial_time;
1002 if (elapsed_time < nomial_time) {
1003 ::usleep (nomial_time - elapsed_time);
1005 ::usleep (100); // don't hog cpu
1009 ::usleep (100); // don't hog cpu
1011 ::gettimeofday (&clock1, NULL);
1018 /******************************************************************************/
1020 static boost::shared_ptr<DummyAudioBackend> _instance;
1022 static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& e);
1023 static int instantiate (const std::string& arg1, const std::string& /* arg2 */);
1024 static int deinstantiate ();
1025 static bool already_configured ();
1027 static ARDOUR::AudioBackendInfo _descriptor = {
1035 static boost::shared_ptr<AudioBackend>
1036 backend_factory (AudioEngine& e)
1039 _instance.reset (new DummyAudioBackend (e, _descriptor));
1045 instantiate (const std::string& arg1, const std::string& /* arg2 */)
1047 s_instance_name = arg1;
1059 already_configured ()
1064 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
1066 return &_descriptor;
1070 /******************************************************************************/
1071 DummyPort::DummyPort (const std::string& name, PortFlags flags)
1075 _capture_latency_range.min = 0;
1076 _capture_latency_range.max = 0;
1077 _playback_latency_range.min = 0;
1078 _playback_latency_range.max = 0;
1081 DummyPort::~DummyPort () {
1086 int DummyPort::connect (DummyPort *port)
1089 PBD::error << _("DummyPort::connect (): invalid (null) port") << endmsg;
1093 if (type () != port->type ()) {
1094 PBD::error << _("DummyPort::connect (): wrong port-type") << endmsg;
1098 if (is_output () && port->is_output ()) {
1099 PBD::error << _("DummyPort::connect (): cannot inter-connect output ports.") << endmsg;
1103 if (is_input () && port->is_input ()) {
1104 PBD::error << _("DummyPort::connect (): cannot inter-connect input ports.") << endmsg;
1109 PBD::error << _("DummyPort::connect (): cannot self-connect ports.") << endmsg;
1113 if (is_connected (port)) {
1114 #if 0 // don't bother to warn about this for now. just ignore it
1115 PBD::error << _("DummyPort::connect (): ports are already connected:")
1116 << " (" << name () << ") -> (" << port->name () << ")"
1122 _connect (port, true);
1127 void DummyPort::_connect (DummyPort *port, bool callback)
1129 _connections.push_back (port);
1131 port->_connect (this, false);
1135 int DummyPort::disconnect (DummyPort *port)
1138 PBD::error << _("DummyPort::disconnect (): invalid (null) port") << endmsg;
1142 if (!is_connected (port)) {
1143 PBD::error << _("DummyPort::disconnect (): ports are not connected:")
1144 << " (" << name () << ") -> (" << port->name () << ")"
1148 _disconnect (port, true);
1152 void DummyPort::_disconnect (DummyPort *port, bool callback)
1154 std::vector<DummyPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
1156 assert (it != _connections.end ());
1158 _connections.erase (it);
1161 port->_disconnect (this, false);
1166 void DummyPort::disconnect_all ()
1168 while (!_connections.empty ()) {
1169 _connections.back ()->_disconnect (this, false);
1170 _connections.pop_back ();
1175 DummyPort::is_connected (const DummyPort *port) const
1177 return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
1180 bool DummyPort::is_physically_connected () const
1182 for (std::vector<DummyPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
1183 if ((*it)->is_physical ()) {
1190 /******************************************************************************/
1192 DummyAudioPort::DummyAudioPort (const std::string& name, PortFlags flags)
1193 : DummyPort (name, flags)
1195 memset (_buffer, 0, sizeof (_buffer));
1198 DummyAudioPort::~DummyAudioPort () { }
1200 void* DummyAudioPort::get_buffer (pframes_t n_samples)
1203 std::vector<DummyPort*>::const_iterator it = get_connections ().begin ();
1204 if (it == get_connections ().end ()) {
1205 memset (_buffer, 0, n_samples * sizeof (Sample));
1207 DummyAudioPort const * source = static_cast<const DummyAudioPort*>(*it);
1208 assert (source && source->is_output ());
1209 memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
1210 while (++it != get_connections ().end ()) {
1211 source = static_cast<const DummyAudioPort*>(*it);
1212 assert (source && source->is_output ());
1213 Sample* dst = buffer ();
1214 const Sample* src = source->const_buffer ();
1215 for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
1220 } else if (is_output () && is_physical () && is_terminal()) {
1221 memset (_buffer, 0, n_samples * sizeof (Sample));
1227 DummyMidiPort::DummyMidiPort (const std::string& name, PortFlags flags)
1228 : DummyPort (name, flags)
1233 DummyMidiPort::~DummyMidiPort () { }
1235 void* DummyMidiPort::get_buffer (pframes_t /* nframes */)
1239 for (std::vector<DummyPort*>::const_iterator i = get_connections ().begin ();
1240 i != get_connections ().end ();
1242 const DummyMidiBuffer src = static_cast<const DummyMidiPort*>(*i)->const_buffer ();
1243 for (DummyMidiBuffer::const_iterator it = src.begin (); it != src.end (); ++it) {
1244 _buffer.push_back (boost::shared_ptr<DummyMidiEvent>(new DummyMidiEvent (**it)));
1247 std::sort (_buffer.begin (), _buffer.end ());
1248 } else if (is_output () && is_physical () && is_terminal()) {
1254 DummyMidiEvent::DummyMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
1256 , _timestamp (timestamp)
1260 _data = (uint8_t*) malloc (size);
1261 memcpy (_data, data, size);
1265 DummyMidiEvent::DummyMidiEvent (const DummyMidiEvent& other)
1266 : _size (other.size ())
1267 , _timestamp (other.timestamp ())
1270 if (other.size () && other.const_data ()) {
1271 _data = (uint8_t*) malloc (other.size ());
1272 memcpy (_data, other.const_data (), other.size ());
1276 DummyMidiEvent::~DummyMidiEvent () {