2 Copyright (C) 2013 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <io.h> // Microsoft's nearest equivalent to <unistd.h>
22 #include <ardourext/misc.h>
27 #include <glibmm/fileutils.h>
28 #include <glibmm/miscutils.h>
30 #include "pbd/error.h"
32 #include "ardour/async_midi_port.h"
33 #include "ardour/audio_backend.h"
34 #include "ardour/audio_port.h"
35 #include "ardour/debug.h"
36 #include "ardour/filesystem_paths.h"
37 #include "ardour/midi_port.h"
38 #include "ardour/midiport_manager.h"
39 #include "ardour/port_manager.h"
40 #include "ardour/profile.h"
41 #include "ardour/rt_tasklist.h"
42 #include "ardour/session.h"
43 #include "ardour/types_convert.h"
47 using namespace ARDOUR;
52 PortManager::PortManager ()
54 , _port_remove_in_progress (false)
55 , _port_deletions_pending (8192) /* ick, arbitrary sizing */
56 , midi_info_dirty (true)
58 load_midi_port_info ();
62 PortManager::clear_pending_port_deletions ()
66 DEBUG_TRACE (DEBUG::Ports, string_compose ("pending port deletions: %1\n", _port_deletions_pending.read_space()));
68 while (_port_deletions_pending.read (&p, 1) == 1) {
74 PortManager::remove_all_ports ()
76 /* make sure that JACK callbacks that will be invoked as we cleanup
77 * ports know that they have nothing to do.
80 _port_remove_in_progress = true;
82 /* process lock MUST be held by caller
86 RCUWriter<Ports> writer (ports);
87 boost::shared_ptr<Ports> ps = writer.get_copy ();
91 /* clear dead wood list in RCU */
95 /* clear out pending port deletion list. we know this is safe because
96 * the auto connect thread in Session is already dead when this is
97 * done. It doesn't use shared_ptr<Port> anyway.
100 _port_deletions_pending.reset ();
102 _port_remove_in_progress = false;
107 PortManager::make_port_name_relative (const string& portname) const
113 string::size_type colon = portname.find (':');
115 if (colon == string::npos) {
119 if (portname.substr (0, colon) == _backend->my_name()) {
120 return portname.substr (colon+1);
127 PortManager::make_port_name_non_relative (const string& portname) const
131 if (portname.find_first_of (':') != string::npos) {
135 str = _backend->my_name();
143 PortManager::get_pretty_name_by_name(const std::string& portname) const
145 PortEngine::PortHandle ph = _backend->get_port_by_name (portname);
149 if (0 == _backend->get_port_property (ph,
150 "http://jackaudio.org/metadata/pretty-name",
160 PortManager::port_is_mine (const string& portname) const
166 string self = _backend->my_name();
168 if (portname.find_first_of (':') != string::npos) {
169 if (portname.substr (0, self.length ()) != self) {
178 PortManager::port_is_physical (const std::string& portname) const
184 PortEngine::PortHandle ph = _backend->get_port_by_name (portname);
189 return _backend->port_is_physical (ph);
193 PortManager::filter_midi_ports (vector<string>& ports, MidiPortFlags include, MidiPortFlags exclude)
196 if (!include && !exclude) {
201 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
203 fill_midi_port_info_locked ();
205 for (vector<string>::iterator si = ports.begin(); si != ports.end(); ) {
207 MidiPortInfo::iterator x = midi_port_info.find (*si);
209 if (x == midi_port_info.end()) {
214 MidiPortInformation& mpi (x->second);
216 if (mpi.pretty_name.empty()) {
217 /* no information !!! */
223 if ((mpi.properties & include) != include) {
224 /* properties do not include requested ones */
225 si = ports.erase (si);
231 if ((mpi.properties & exclude)) {
232 /* properties include ones to avoid */
233 si = ports.erase (si);
244 PortManager::get_physical_outputs (DataType type, std::vector<std::string>& s, MidiPortFlags include, MidiPortFlags exclude)
250 _backend->get_physical_outputs (type, s);
251 filter_midi_ports (s, include, exclude);
255 PortManager::get_physical_inputs (DataType type, std::vector<std::string>& s, MidiPortFlags include, MidiPortFlags exclude)
262 _backend->get_physical_inputs (type, s);
263 filter_midi_ports (s, include, exclude);
267 PortManager::n_physical_outputs () const
270 return ChanCount::ZERO;
273 return _backend->n_physical_outputs ();
277 PortManager::n_physical_inputs () const
280 return ChanCount::ZERO;
282 return _backend->n_physical_inputs ();
285 /** @param name Full or short name of port
286 * @return Corresponding Port or 0.
288 boost::shared_ptr<Port>
289 PortManager::get_port_by_name (const string& portname)
292 return boost::shared_ptr<Port>();
295 if (!port_is_mine (portname)) {
296 /* not an ardour port */
297 return boost::shared_ptr<Port> ();
300 boost::shared_ptr<Ports> pr = ports.reader();
301 std::string rel = make_port_name_relative (portname);
302 Ports::iterator x = pr->find (rel);
304 if (x != pr->end()) {
305 /* its possible that the port was renamed by some 3rd party and
306 * we don't know about it. check for this (the check is quick
307 * and cheap), and if so, rename the port (which will alter
308 * the port map as a side effect).
310 const std::string check = make_port_name_relative (_backend->get_port_name (x->second->port_handle()));
312 x->second->set_name (check);
317 return boost::shared_ptr<Port> ();
321 PortManager::port_renamed (const std::string& old_relative_name, const std::string& new_relative_name)
323 RCUWriter<Ports> writer (ports);
324 boost::shared_ptr<Ports> p = writer.get_copy();
325 Ports::iterator x = p->find (old_relative_name);
328 boost::shared_ptr<Port> port = x->second;
330 p->insert (make_pair (new_relative_name, port));
335 PortManager::get_ports (DataType type, PortList& pl)
337 boost::shared_ptr<Ports> plist = ports.reader();
338 for (Ports::iterator p = plist->begin(); p != plist->end(); ++p) {
339 if (p->second->type() == type) {
340 pl.push_back (p->second);
347 PortManager::get_ports (const string& port_name_pattern, DataType type, PortFlags flags, vector<string>& s)
355 return _backend->get_ports (port_name_pattern, type, flags, s);
359 PortManager::port_registration_failure (const std::string& portname)
365 string full_portname = _backend->my_name();
366 full_portname += ':';
367 full_portname += portname;
370 PortEngine::PortHandle p = _backend->get_port_by_name (full_portname);
374 reason = string_compose (_("a port with the name \"%1\" already exists: check for duplicated track/bus names"), portname);
376 reason = string_compose (_("No more ports are available. You will need to stop %1 and restart with more ports if you need this many tracks."), PROGRAM_NAME);
379 throw PortRegistrationFailure (string_compose (_("AudioEngine: cannot register port \"%1\": %2"), portname, reason).c_str());
384 void operator() (Port* p) {
385 AudioEngine::instance()->add_pending_port_deletion (p);
389 boost::shared_ptr<Port>
390 PortManager::register_port (DataType dtype, const string& portname, bool input, bool async, PortFlags flags)
392 boost::shared_ptr<Port> newport;
394 /* limit the possible flags that can be set */
396 flags = PortFlags (flags & (Hidden|Shadow|IsTerminal));
399 if (dtype == DataType::AUDIO) {
400 DEBUG_TRACE (DEBUG::Ports, string_compose ("registering AUDIO port %1, input %2\n",
402 newport.reset (new AudioPort (portname, PortFlags ((input ? IsInput : IsOutput) | flags)),
404 } else if (dtype == DataType::MIDI) {
406 DEBUG_TRACE (DEBUG::Ports, string_compose ("registering ASYNC MIDI port %1, input %2\n",
408 newport.reset (new AsyncMIDIPort (portname, PortFlags ((input ? IsInput : IsOutput) | flags)),
411 DEBUG_TRACE (DEBUG::Ports, string_compose ("registering MIDI port %1, input %2\n",
413 newport.reset (new MidiPort (portname, PortFlags ((input ? IsInput : IsOutput) | flags)),
417 throw PortRegistrationFailure("unable to create port (unknown type)");
420 RCUWriter<Ports> writer (ports);
421 boost::shared_ptr<Ports> ps = writer.get_copy ();
422 ps->insert (make_pair (make_port_name_relative (portname), newport));
424 /* writer goes out of scope, forces update */
428 catch (PortRegistrationFailure& err) {
430 } catch (std::exception& e) {
431 throw PortRegistrationFailure(string_compose(
432 _("unable to create port: %1"), e.what()).c_str());
434 throw PortRegistrationFailure("unable to create port (unknown error)");
437 DEBUG_TRACE (DEBUG::Ports, string_compose ("\t%2 port registration success, ports now = %1\n", ports.reader()->size(), this));
441 boost::shared_ptr<Port>
442 PortManager::register_input_port (DataType type, const string& portname, bool async, PortFlags extra_flags)
444 return register_port (type, portname, true, async, extra_flags);
447 boost::shared_ptr<Port>
448 PortManager::register_output_port (DataType type, const string& portname, bool async, PortFlags extra_flags)
450 return register_port (type, portname, false, async, extra_flags);
454 PortManager::unregister_port (boost::shared_ptr<Port> port)
456 /* This is a little subtle. We do not call the backend's port
457 * unregistration code from here. That is left for the Port
458 * destructor. We are trying to drop references to the Port object
459 * here, so that its destructor will run and it will unregister itself.
462 /* caller must hold process lock */
465 RCUWriter<Ports> writer (ports);
466 boost::shared_ptr<Ports> ps = writer.get_copy ();
467 Ports::iterator x = ps->find (make_port_name_relative (port->name()));
469 if (x != ps->end()) {
470 DEBUG_TRACE (DEBUG::Ports, string_compose ("removing %1 from port map (uc=%2)\n", port->name(), port.use_count()));
474 /* writer goes out of scope, forces update */
483 PortManager::connected (const string& port_name)
489 PortEngine::PortHandle handle = _backend->get_port_by_name (port_name);
495 return _backend->connected (handle);
499 PortManager::physically_connected (const string& port_name)
505 PortEngine::PortHandle handle = _backend->get_port_by_name (port_name);
511 return _backend->physically_connected (handle);
515 PortManager::get_connections (const string& port_name, std::vector<std::string>& s)
522 PortEngine::PortHandle handle = _backend->get_port_by_name (port_name);
529 return _backend->get_connections (handle, s);
533 PortManager::connect (const string& source, const string& destination)
537 string s = make_port_name_non_relative (source);
538 string d = make_port_name_non_relative (destination);
540 boost::shared_ptr<Port> src = get_port_by_name (s);
541 boost::shared_ptr<Port> dst = get_port_by_name (d);
544 ret = src->connect (d);
546 ret = dst->connect (s);
548 /* neither port is known to us ...hand-off to the PortEngine
551 ret = _backend->connect (s, d);
558 /* already exists - no error, no warning */
559 } else if (ret < 0) {
560 error << string_compose(_("AudioEngine: cannot connect %1 (%2) to %3 (%4)"),
561 source, s, destination, d)
569 PortManager::disconnect (const string& source, const string& destination)
573 string s = make_port_name_non_relative (source);
574 string d = make_port_name_non_relative (destination);
576 boost::shared_ptr<Port> src = get_port_by_name (s);
577 boost::shared_ptr<Port> dst = get_port_by_name (d);
580 ret = src->disconnect (d);
582 ret = dst->disconnect (s);
584 /* neither port is known to us ...hand-off to the PortEngine
587 ret = _backend->disconnect (s, d);
596 PortManager::disconnect (boost::shared_ptr<Port> port)
598 return port->disconnect_all ();
602 PortManager::disconnect (std::string const & name)
604 PortEngine::PortHandle ph = _backend->get_port_by_name (name);
606 return _backend->disconnect_all (ph);
612 PortManager::reestablish_ports ()
616 boost::shared_ptr<Ports> p = ports.reader ();
618 DEBUG_TRACE (DEBUG::Ports, string_compose ("reestablish %1 ports\n", p->size()));
620 for (i = p->begin(); i != p->end(); ++i) {
621 if (i->second->reestablish ()) {
622 error << string_compose (_("Re-establising port %1 failed"), i->second->name()) << endmsg;
623 std::cerr << string_compose (_("Re-establising port %1 failed"), i->second->name()) << std::endl;
638 PortManager::reconnect_ports ()
640 boost::shared_ptr<Ports> p = ports.reader ();
642 if (!Profile->get_trx()) {
643 /* re-establish connections */
645 DEBUG_TRACE (DEBUG::Ports, string_compose ("reconnect %1 ports\n", p->size()));
647 for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
648 i->second->reconnect ();
656 PortManager::connect_callback (const string& a, const string& b, bool conn)
658 boost::shared_ptr<Port> port_a;
659 boost::shared_ptr<Port> port_b;
661 boost::shared_ptr<Ports> pr = ports.reader ();
663 x = pr->find (make_port_name_relative (a));
664 if (x != pr->end()) {
668 x = pr->find (make_port_name_relative (b));
669 if (x != pr->end()) {
674 if (port_a && !port_b) {
675 port_a->increment_external_connections ();
676 } else if (port_b && !port_a) {
677 port_b->increment_external_connections ();
680 if (port_a && !port_b) {
681 port_a->decrement_external_connections ();
682 } else if (port_b && !port_a) {
683 port_b->decrement_external_connections ();
687 PortConnectedOrDisconnected (
695 PortManager::registration_callback ()
697 if (!_port_remove_in_progress) {
700 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
701 midi_info_dirty = true;
704 PortRegisteredOrUnregistered (); /* EMIT SIGNAL */
709 PortManager::can_request_input_monitoring () const
715 return _backend->can_monitor_input ();
719 PortManager::request_input_monitoring (const string& name, bool yn) const
725 PortEngine::PortHandle ph = _backend->get_port_by_name (name);
728 _backend->request_input_monitoring (ph, yn);
733 PortManager::ensure_input_monitoring (const string& name, bool yn) const
739 PortEngine::PortHandle ph = _backend->get_port_by_name (name);
742 _backend->ensure_input_monitoring (ph, yn);
747 PortManager::port_name_size() const
753 return _backend->port_name_size ();
757 PortManager::my_name() const
763 return _backend->my_name();
767 PortManager::graph_order_callback ()
769 if (!_port_remove_in_progress) {
770 GraphReordered(); /* EMIT SIGNAL */
777 PortManager::cycle_start (pframes_t nframes, Session* s)
779 Port::set_global_port_buffer_offset (0);
780 Port::set_cycle_samplecnt (nframes);
782 _cycle_ports = ports.reader ();
785 * - when speed == 1.0, the resampler copies data without processing
786 * it may (or may not) be more efficient to just run all in sequence.
788 * - single sequential task for 'lightweight' tasks would make sense
789 * (run it in parallel with 'heavy' resampling.
790 * * output ports (sends_output()) only set a flag
791 * * midi-ports only scale event timestamps
793 * - a threshold parallel vs searial processing may be appropriate.
794 * amount of work (how many connected ports are there, how
795 * many resamplers need to run) vs. available CPU cores and semaphore
796 * synchronization overhead.
798 * - input ports: it would make sense to resample each input only once
799 * (rather than resample into each ardour-owned input port).
800 * A single external source-port may be connected to many ardour
801 * input-ports. Currently re-sampling is per input.
803 if (s && s->rt_tasklist () && fabs (Port::speed_ratio ()) != 1.0) {
804 RTTaskList::TaskList tl;
805 for (Ports::iterator p = _cycle_ports->begin(); p != _cycle_ports->end(); ++p) {
806 tl.push_back (boost::bind (&Port::cycle_start, p->second, nframes));
808 s->rt_tasklist()->process (tl);
810 for (Ports::iterator p = _cycle_ports->begin(); p != _cycle_ports->end(); ++p) {
811 p->second->cycle_start (nframes);
817 PortManager::cycle_end (pframes_t nframes, Session* s)
819 // see optimzation note in ::cycle_start()
820 if (s && s->rt_tasklist () && fabs (Port::speed_ratio ()) != 1.0) {
821 RTTaskList::TaskList tl;
822 for (Ports::iterator p = _cycle_ports->begin(); p != _cycle_ports->end(); ++p) {
823 tl.push_back (boost::bind (&Port::cycle_end, p->second, nframes));
825 s->rt_tasklist()->process (tl);
827 for (Ports::iterator p = _cycle_ports->begin(); p != _cycle_ports->end(); ++p) {
828 p->second->cycle_end (nframes);
832 for (Ports::iterator p = _cycle_ports->begin(); p != _cycle_ports->end(); ++p) {
833 p->second->flush_buffers (nframes);
836 _cycle_ports.reset ();
842 PortManager::silence (pframes_t nframes, Session *s)
844 for (Ports::iterator i = _cycle_ports->begin(); i != _cycle_ports->end(); ++i) {
845 if (s && i->second == s->mtc_output_port ()) {
848 if (s && i->second == s->midi_clock_output_port ()) {
851 if (s && i->second == s->ltc_output_port ()) {
854 if (boost::dynamic_pointer_cast<AsyncMIDIPort>(i->second)) {
857 if (i->second->sends_output()) {
858 i->second->get_buffer(nframes).silence(nframes);
864 PortManager::silence_outputs (pframes_t nframes)
866 std::vector<std::string> port_names;
867 if (get_ports("", DataType::AUDIO, IsOutput, port_names)) {
868 for (std::vector<std::string>::iterator p = port_names.begin(); p != port_names.end(); ++p) {
869 if (!port_is_mine(*p)) {
872 PortEngine::PortHandle ph = _backend->get_port_by_name (*p);
876 void *buf = _backend->get_buffer(ph, nframes);
880 memset (buf, 0, sizeof(float) * nframes);
884 if (get_ports("", DataType::MIDI, IsOutput, port_names)) {
885 for (std::vector<std::string>::iterator p = port_names.begin(); p != port_names.end(); ++p) {
886 if (!port_is_mine(*p)) {
889 PortEngine::PortHandle ph = _backend->get_port_by_name (*p);
893 void *buf = _backend->get_buffer(ph, nframes);
897 _backend->midi_clear (buf);
903 PortManager::check_monitoring ()
905 for (Ports::iterator i = _cycle_ports->begin(); i != _cycle_ports->end(); ++i) {
909 if (i->second->last_monitor() != (x = i->second->monitoring_input ())) {
910 i->second->set_last_monitor (x);
911 /* XXX I think this is dangerous, due to
912 a likely mutex in the signal handlers ...
914 i->second->MonitorInputChanged (x); /* EMIT SIGNAL */
920 PortManager::cycle_end_fade_out (gain_t base_gain, gain_t gain_step, pframes_t nframes, Session* s)
922 // see optimzation note in ::cycle_start()
923 if (s && s->rt_tasklist () && fabs (Port::speed_ratio ()) != 1.0) {
924 RTTaskList::TaskList tl;
925 for (Ports::iterator p = _cycle_ports->begin(); p != _cycle_ports->end(); ++p) {
926 tl.push_back (boost::bind (&Port::cycle_end, p->second, nframes));
928 s->rt_tasklist()->process (tl);
930 for (Ports::iterator p = _cycle_ports->begin(); p != _cycle_ports->end(); ++p) {
931 p->second->cycle_end (nframes);
935 for (Ports::iterator p = _cycle_ports->begin(); p != _cycle_ports->end(); ++p) {
936 p->second->flush_buffers (nframes);
938 if (p->second->sends_output()) {
940 boost::shared_ptr<AudioPort> ap = boost::dynamic_pointer_cast<AudioPort> (p->second);
942 Sample* s = ap->engine_get_whole_audio_buffer ();
943 gain_t g = base_gain;
945 for (pframes_t n = 0; n < nframes; ++n) {
952 _cycle_ports.reset ();
957 PortManager::port_engine()
964 PortManager::port_is_control_only (std::string const& name)
966 static regex_t compiled_pattern;
967 static string pattern;
969 if (pattern.empty()) {
971 /* This is a list of regular expressions that match ports
972 * related to physical MIDI devices that we do not want to
973 * expose as normal physical ports.
976 const char * const control_only_ports[] = {
977 X_(".*Ableton Push.*"),
978 X_(".*FaderPort .*"),
979 X_(".*FaderPort8 .*"),
980 X_(".*FaderPort16 .*"),
981 X_(".*FaderPort2 .*"),
987 for (size_t n = 0; n < sizeof (control_only_ports)/sizeof (control_only_ports[0]); ++n) {
991 pattern += control_only_ports[n];
995 regcomp (&compiled_pattern, pattern.c_str(), REG_EXTENDED|REG_NOSUB);
998 return regexec (&compiled_pattern, name.c_str(), 0, 0, 0) == 0;
1001 PortManager::MidiPortInformation
1002 PortManager::midi_port_information (std::string const & name)
1004 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
1006 fill_midi_port_info_locked ();
1008 MidiPortInfo::iterator x = midi_port_info.find (name);
1010 if (x != midi_port_info.end()) {
1014 return MidiPortInformation ();
1018 PortManager::get_known_midi_ports (vector<string>& copy)
1020 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
1022 fill_midi_port_info_locked ();
1024 for (MidiPortInfo::const_iterator x = midi_port_info.begin(); x != midi_port_info.end(); ++x) {
1025 copy.push_back (x->first);
1030 PortManager::get_midi_selection_ports (vector<string>& copy)
1032 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
1034 fill_midi_port_info_locked ();
1036 for (MidiPortInfo::const_iterator x = midi_port_info.begin(); x != midi_port_info.end(); ++x) {
1037 if (x->second.properties & MidiPortSelection) {
1038 copy.push_back (x->first);
1044 PortManager::set_midi_port_pretty_name (string const & port, string const & pretty)
1047 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
1049 fill_midi_port_info_locked ();
1051 MidiPortInfo::iterator x = midi_port_info.find (port);
1052 if (x == midi_port_info.end()) {
1055 x->second.pretty_name = pretty;
1058 /* push into back end */
1060 PortEngine::PortHandle ph = _backend->get_port_by_name (port);
1063 _backend->set_port_property (ph, "http://jackaudio.org/metadata/pretty-name", pretty, string());
1066 MidiPortInfoChanged (); /* EMIT SIGNAL*/
1070 PortManager::add_midi_port_flags (string const & port, MidiPortFlags flags)
1075 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
1077 fill_midi_port_info_locked ();
1079 MidiPortInfo::iterator x = midi_port_info.find (port);
1080 if (x != midi_port_info.end()) {
1081 if ((x->second.properties & flags) != flags) { // at least one missing
1082 x->second.properties = MidiPortFlags (x->second.properties | flags);
1089 if (flags & MidiPortSelection) {
1090 MidiSelectionPortsChanged (); /* EMIT SIGNAL */
1093 if (flags != MidiPortSelection) {
1094 MidiPortInfoChanged (); /* EMIT SIGNAL */
1097 save_midi_port_info ();
1102 PortManager::remove_midi_port_flags (string const & port, MidiPortFlags flags)
1107 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
1109 fill_midi_port_info_locked ();
1111 MidiPortInfo::iterator x = midi_port_info.find (port);
1112 if (x != midi_port_info.end()) {
1113 if (x->second.properties & flags) { // at least one is set
1114 x->second.properties = MidiPortFlags (x->second.properties & ~flags);
1121 if (flags & MidiPortSelection) {
1122 MidiSelectionPortsChanged (); /* EMIT SIGNAL */
1125 if (flags != MidiPortSelection) {
1126 MidiPortInfoChanged (); /* EMIT SIGNAL */
1129 save_midi_port_info ();
1134 PortManager::midi_port_info_file ()
1136 return Glib::build_filename (user_config_directory(), X_("midi_port_info"));
1140 PortManager::save_midi_port_info ()
1142 string path = midi_port_info_file ();
1144 XMLNode* root = new XMLNode (X_("MidiPortInfo"));
1147 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
1149 if (midi_port_info.empty()) {
1154 for (MidiPortInfo::iterator i = midi_port_info.begin(); i != midi_port_info.end(); ++i) {
1155 XMLNode* node = new XMLNode (X_("port"));
1156 node->set_property (X_("name"), i->first);
1157 node->set_property (X_("input"), i->second.input);
1158 node->set_property (X_("properties"), i->second.properties);
1159 root->add_child_nocopy (*node);
1165 tree.set_root (root);
1167 if (!tree.write (path)) {
1168 error << string_compose (_("Could not save MIDI port info to %1"), path) << endmsg;
1173 PortManager::load_midi_port_info ()
1175 string path = midi_port_info_file ();
1178 if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
1182 if (!tree.read (path)) {
1183 error << string_compose (_("Cannot load MIDI port info from %1"), path) << endmsg;
1187 midi_port_info.clear ();
1189 for (XMLNodeConstIterator i = tree.root()->children().begin(); i != tree.root()->children().end(); ++i) {
1190 MidiPortInformation mpi;
1193 if (!(*i)->get_property (X_("name"), name) ||
1194 !(*i)->get_property (X_("input"), mpi.input) ||
1195 !(*i)->get_property (X_("properties"), mpi.properties)) {
1199 midi_port_info.insert (make_pair (name, mpi));
1204 PortManager::fill_midi_port_info ()
1206 Glib::Threads::Mutex::Lock lm (midi_port_info_mutex);
1207 fill_midi_port_info_locked ();
1211 PortManager::fill_midi_port_info_locked ()
1213 /* MIDI info mutex MUST be held */
1215 if (!midi_info_dirty) {
1219 std::vector<string> ports;
1221 AudioEngine::instance()->get_ports (string(), DataType::MIDI, IsOutput, ports);
1223 for (vector<string>::iterator p = ports.begin(); p != ports.end(); ++p) {
1225 if (port_is_mine (*p)) {
1229 if (midi_port_info.find (*p) == midi_port_info.end()) {
1230 MidiPortInformation mpi;
1231 mpi.pretty_name = *p;
1234 if (port_is_control_only (*p)) {
1235 mpi.properties = MidiPortFlags (mpi.properties | MidiPortControl);
1238 if ((*p.find (X_("Midi Through")) != string::npos ||
1239 (*p).find (X_("Midi-Through")) != string::npos))
1241 mpi.properties = MidiPortFlags (mpi.properties | MidiPortVirtual);
1244 midi_port_info.insert (make_pair (*p, mpi));
1248 AudioEngine::instance()->get_ports (string(), DataType::MIDI, IsInput, ports);
1250 for (vector<string>::iterator p = ports.begin(); p != ports.end(); ++p) {
1252 if (port_is_mine (*p)) {
1256 if (midi_port_info.find (*p) == midi_port_info.end()) {
1257 MidiPortInformation mpi;
1258 mpi.pretty_name = *p;
1261 if (port_is_control_only (*p)) {
1262 mpi.properties = MidiPortFlags (mpi.properties | MidiPortControl);
1265 if ((*p.find (X_("Midi Through")) != string::npos ||
1266 (*p).find (X_("Midi-Through")) != string::npos))
1268 mpi.properties = MidiPortFlags (mpi.properties | MidiPortVirtual);
1271 midi_port_info.insert (make_pair (*p, mpi));
1275 /* now push/pull pretty name information between backend and the
1279 // rg: I don't understand what this attempts to solve
1281 // Naming ports should be left to the backend:
1282 // Ardour cannot associate numeric IDs with corresponding hardware.
1283 // (see also 7dde6c3b)
1285 for (MidiPortInfo::iterator x = midi_port_info.begin(); x != midi_port_info.end(); ++x) {
1286 PortEngine::PortHandle ph = _backend->get_port_by_name (x->first);
1289 /* port info saved from some condition where this port
1290 * existed, but no longer does (i.e. device unplugged
1291 * at present). We don't remove it from midi_port_info.
1296 /* check with backend for pre-existing pretty name */
1300 if (0 == _backend->get_port_property (ph,
1301 "http://jackaudio.org/metadata/pretty-name",
1303 x->second.pretty_name = value;
1307 midi_info_dirty = false;