2 Copyright (C) 2009 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.
20 #include "ardour/port.h"
21 #include "ardour/audioengine.h"
22 #include "ardour/i18n.h"
23 #include "pbd/failed_constructor.h"
24 #include "pbd/error.h"
25 #include "pbd/compose.h"
29 using namespace ARDOUR;
31 AudioEngine* Port::_engine = 0;
33 /** @param n Port short name */
34 Port::Port (std::string const & n, DataType t, Flags f)
35 : _last_monitor (false)
40 /* Unfortunately we have to pass the DataType into this constructor so that we can
41 create the right kind of JACK port; aside from this we'll use the virtual function type ()
45 assert (_name.find_first_of (':') == std::string::npos);
47 if ((_jack_port = jack_port_register (_engine->jack (), _name.c_str (), t.to_jack_type (), _flags, 0)) == 0) {
48 throw failed_constructor ();
52 /** Port destructor */
55 jack_port_unregister (_engine->jack (), _jack_port);
58 /** @return true if this port is connected to anything */
60 Port::connected () const
62 return (jack_port_connected (_jack_port) != 0);
66 Port::disconnect_all ()
68 jack_port_disconnect (_engine->jack(), _jack_port);
69 _connections.clear ();
74 /** @param o Port name
75 * @return true if this port is connected to o, otherwise false.
78 Port::connected_to (std::string const & o) const
80 return jack_port_connected_to (_jack_port, _engine->make_port_name_non_relative(o).c_str ());
83 /** @param o Filled in with port full names of ports that we are connected to */
85 Port::get_connections (std::vector<std::string> & c) const
89 const char** jc = jack_port_get_connections (_jack_port);
91 for (int i = 0; jc[i]; ++i) {
101 Port::connect (std::string const & other)
103 /* caller must hold process lock */
105 std::string const other_shrt = _engine->make_port_name_non_relative (other);
106 std::string const this_shrt = _engine->make_port_name_non_relative (_name);
110 if (sends_output ()) {
111 r = jack_connect (_engine->jack (), this_shrt.c_str (), other_shrt.c_str ());
113 r = jack_connect (_engine->jack (), other_shrt.c_str (), this_shrt.c_str());
117 _connections.insert (other);
124 Port::disconnect (std::string const & other)
126 /* caller must hold process lock */
128 std::string const other_shrt = _engine->make_port_name_non_relative (other);
129 std::string const this_shrt = _engine->make_port_name_non_relative (_name);
133 if (sends_output ()) {
134 r = jack_disconnect (_engine->jack (), this_shrt.c_str (), other_shrt.c_str ());
136 r = jack_disconnect (_engine->jack (), other_shrt.c_str (), this_shrt.c_str ());
140 _connections.erase (other);
148 Port::connected_to (Port* o) const
150 return connected_to (o->name ());
154 Port::connect (Port* o)
156 return connect (o->name ());
160 Port::disconnect (Port* o)
162 return disconnect (o->name ());
166 Port::set_engine (AudioEngine* e)
172 Port::ensure_monitor_input (bool yn)
174 jack_port_ensure_monitor (_jack_port, yn);
178 Port::monitoring_input () const
180 return jack_port_monitoring_input (_jack_port);
186 _last_monitor = false;
194 Port::recompute_total_latency () const
196 #ifdef HAVE_JACK_RECOMPUTE_LATENCY
197 jack_recompute_total_latency (_engine->jack (), _jack_port);
202 Port::total_latency () const
204 return jack_port_get_total_latency (_engine->jack (), _jack_port);
210 _jack_port = jack_port_register (_engine->jack(), _name.c_str(), type().to_jack_type(), _flags, 0);
212 if (_jack_port == 0) {
213 PBD::error << string_compose (_("could not reregister %1"), _name) << endmsg;
226 /* caller must hold process lock; intended to be used only after reestablish() */
228 for (std::set<string>::iterator i = _connections.begin(); i != _connections.end(); ++i) {
237 /** @param n Short name */
239 Port::set_name (std::string const & n)
241 assert (_name.find_first_of (':') == std::string::npos);
243 int const r = jack_port_set_name (_jack_port, n.c_str());
252 Port::request_monitor_input (bool yn)
254 jack_port_request_monitor (_jack_port, yn);
258 Port::set_latency (nframes_t n)
260 jack_port_set_latency (_jack_port, n);