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.
21 #include "libardour-config.h"
24 #include "ardour/port.h"
25 #include "ardour/audioengine.h"
26 #include "pbd/failed_constructor.h"
27 #include "pbd/error.h"
28 #include "pbd/compose.h"
34 using namespace ARDOUR;
36 AudioEngine* Port::_engine = 0;
37 nframes_t Port::_port_offset = 0;
38 nframes_t Port::_buffer_size = 0;
40 /** @param n Port short name */
41 Port::Port (std::string const & n, DataType t, Flags f)
42 : _last_monitor (false)
47 /* Unfortunately we have to pass the DataType into this constructor so that we can
48 create the right kind of JACK port; aside from this we'll use the virtual function type ()
52 assert (_name.find_first_of (':') == std::string::npos);
54 if ((_jack_port = jack_port_register (_engine->jack (), _name.c_str (), t.to_jack_type (), _flags, 0)) == 0) {
55 throw failed_constructor ();
59 /** Port destructor */
62 jack_port_unregister (_engine->jack (), _jack_port);
65 /** @return true if this port is connected to anything */
67 Port::connected () const
69 return (jack_port_connected (_jack_port) != 0);
73 Port::disconnect_all ()
75 jack_port_disconnect (_engine->jack(), _jack_port);
76 _connections.clear ();
81 /** @param o Port name
82 * @return true if this port is connected to o, otherwise false.
85 Port::connected_to (std::string const & o) const
87 return jack_port_connected_to (_jack_port, _engine->make_port_name_non_relative(o).c_str ());
90 /** @param o Filled in with port full names of ports that we are connected to */
92 Port::get_connections (std::vector<std::string> & c) const
96 const char** jc = jack_port_get_connections (_jack_port);
98 for (int i = 0; jc[i]; ++i) {
108 Port::connect (std::string const & other)
110 /* caller must hold process lock */
112 std::string const other_shrt = _engine->make_port_name_non_relative (other);
113 std::string const this_shrt = _engine->make_port_name_non_relative (_name);
117 if (sends_output ()) {
118 r = jack_connect (_engine->jack (), this_shrt.c_str (), other_shrt.c_str ());
120 r = jack_connect (_engine->jack (), other_shrt.c_str (), this_shrt.c_str());
124 _connections.insert (other);
131 Port::disconnect (std::string const & other)
133 /* caller must hold process lock */
135 std::string const other_shrt = _engine->make_port_name_non_relative (other);
136 std::string const this_shrt = _engine->make_port_name_non_relative (_name);
140 if (sends_output ()) {
141 r = jack_disconnect (_engine->jack (), this_shrt.c_str (), other_shrt.c_str ());
143 r = jack_disconnect (_engine->jack (), other_shrt.c_str (), this_shrt.c_str ());
147 _connections.erase (other);
155 Port::connected_to (Port* o) const
157 return connected_to (o->name ());
161 Port::connect (Port* o)
163 return connect (o->name ());
167 Port::disconnect (Port* o)
169 return disconnect (o->name ());
173 Port::set_engine (AudioEngine* e)
179 Port::ensure_monitor_input (bool yn)
181 jack_port_ensure_monitor (_jack_port, yn);
185 Port::monitoring_input () const
187 return jack_port_monitoring_input (_jack_port);
193 _last_monitor = false;
201 Port::recompute_total_latency () const
203 #ifdef HAVE_JACK_RECOMPUTE_LATENCY
204 jack_recompute_total_latency (_engine->jack (), _jack_port);
209 Port::total_latency () const
211 return jack_port_get_total_latency (_engine->jack (), _jack_port);
217 cerr << "RE-REGISTER: " << _name.c_str() << endl;
218 _jack_port = jack_port_register (_engine->jack(), _name.c_str(), type().to_jack_type(), _flags, 0);
220 if (_jack_port == 0) {
221 PBD::error << string_compose (_("could not reregister %1"), _name) << endmsg;
234 /* caller must hold process lock; intended to be used only after reestablish() */
236 for (std::set<string>::iterator i = _connections.begin(); i != _connections.end(); ++i) {
245 /** @param n Short port name (no JACK client name) */
247 Port::set_name (std::string const & n)
253 int const r = jack_port_set_name (_jack_port, n.c_str());
263 Port::request_monitor_input (bool yn)
265 jack_port_request_monitor (_jack_port, yn);
269 Port::set_latency (nframes_t n)
271 jack_port_set_latency (_jack_port, n);