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 "pbd/failed_constructor.h"
23 #include "pbd/error.h"
24 #include "pbd/compose.h"
30 using namespace ARDOUR;
32 AudioEngine* Port::_engine = 0;
33 nframes_t Port::_port_offset = 0;
34 nframes_t Port::_buffer_size = 0;
36 /** @param n Port short name */
37 Port::Port (std::string const & n, DataType t, Flags f)
38 : _last_monitor (false)
43 /* Unfortunately we have to pass the DataType into this constructor so that we can
44 create the right kind of JACK port; aside from this we'll use the virtual function type ()
48 assert (_name.find_first_of (':') == std::string::npos);
50 if ((_jack_port = jack_port_register (_engine->jack (), _name.c_str (), t.to_jack_type (), _flags, 0)) == 0) {
51 throw failed_constructor ();
55 /** Port destructor */
58 jack_port_unregister (_engine->jack (), _jack_port);
61 /** @return true if this port is connected to anything */
63 Port::connected () const
65 return (jack_port_connected (_jack_port) != 0);
69 Port::disconnect_all ()
71 jack_port_disconnect (_engine->jack(), _jack_port);
72 _connections.clear ();
77 /** @param o Port name
78 * @return true if this port is connected to o, otherwise false.
81 Port::connected_to (std::string const & o) const
83 return jack_port_connected_to (_jack_port, _engine->make_port_name_non_relative(o).c_str ());
86 /** @param o Filled in with port full names of ports that we are connected to */
88 Port::get_connections (std::vector<std::string> & c) const
92 const char** jc = jack_port_get_connections (_jack_port);
94 for (int i = 0; jc[i]; ++i) {
104 Port::connect (std::string const & other)
106 /* caller must hold process lock */
108 std::string const other_shrt = _engine->make_port_name_non_relative (other);
109 std::string const this_shrt = _engine->make_port_name_non_relative (_name);
113 if (sends_output ()) {
114 r = jack_connect (_engine->jack (), this_shrt.c_str (), other_shrt.c_str ());
116 r = jack_connect (_engine->jack (), other_shrt.c_str (), this_shrt.c_str());
120 _connections.insert (other);
127 Port::disconnect (std::string const & other)
129 /* caller must hold process lock */
131 std::string const other_shrt = _engine->make_port_name_non_relative (other);
132 std::string const this_shrt = _engine->make_port_name_non_relative (_name);
136 if (sends_output ()) {
137 r = jack_disconnect (_engine->jack (), this_shrt.c_str (), other_shrt.c_str ());
139 r = jack_disconnect (_engine->jack (), other_shrt.c_str (), this_shrt.c_str ());
143 _connections.erase (other);
151 Port::connected_to (Port* o) const
153 return connected_to (o->name ());
157 Port::connect (Port* o)
159 return connect (o->name ());
163 Port::disconnect (Port* o)
165 return disconnect (o->name ());
169 Port::set_engine (AudioEngine* e)
175 Port::ensure_monitor_input (bool yn)
177 jack_port_ensure_monitor (_jack_port, yn);
181 Port::monitoring_input () const
183 return jack_port_monitoring_input (_jack_port);
189 _last_monitor = false;
197 Port::recompute_total_latency () const
199 #ifdef HAVE_JACK_RECOMPUTE_LATENCY
200 jack_recompute_total_latency (_engine->jack (), _jack_port);
205 Port::total_latency () const
207 return jack_port_get_total_latency (_engine->jack (), _jack_port);
213 cerr << "RE-REGISTER: " << _name.c_str() << endl;
214 _jack_port = jack_port_register (_engine->jack(), _name.c_str(), type().to_jack_type(), _flags, 0);
216 if (_jack_port == 0) {
217 PBD::error << string_compose (_("could not reregister %1"), _name) << endmsg;
230 /* caller must hold process lock; intended to be used only after reestablish() */
232 for (std::set<string>::iterator i = _connections.begin(); i != _connections.end(); ++i) {
241 /** @param n Short name */
243 Port::set_name (std::string const & n)
245 assert (_name.find_first_of (':') == std::string::npos);
247 int const r = jack_port_set_name (_jack_port, n.c_str());
256 Port::request_monitor_input (bool yn)
258 jack_port_request_monitor (_jack_port, yn);
262 Port::set_latency (nframes_t n)
264 jack_port_set_latency (_jack_port, n);