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.
20 #ifndef __libardour_port_manager_h__
21 #define __libardour_port_manager_h__
30 #include <boost/shared_ptr.hpp>
34 #include "ardour/chan_count.h"
35 #include "ardour/midiport_manager.h"
36 #include "ardour/port.h"
43 class LIBARDOUR_API PortManager
46 typedef std::map<std::string,boost::shared_ptr<Port> > Ports;
47 typedef std::list<boost::shared_ptr<Port> > PortList;
50 virtual ~PortManager() {}
52 PortEngine& port_engine();
54 uint32_t port_name_size() const;
55 std::string my_name() const;
57 /* Port registration */
59 boost::shared_ptr<Port> register_input_port (DataType, const std::string& portname, bool async = false);
60 boost::shared_ptr<Port> register_output_port (DataType, const std::string& portname, bool async = false);
61 int unregister_port (boost::shared_ptr<Port>);
63 /* Port connectivity */
65 int connect (const std::string& source, const std::string& destination);
66 int disconnect (const std::string& source, const std::string& destination);
67 int disconnect (boost::shared_ptr<Port>);
68 int reestablish_ports ();
69 int reconnect_ports ();
71 bool connected (const std::string&);
72 bool connected_to (const std::string&, const std::string&);
73 bool physically_connected (const std::string&);
74 int get_connections (const std::string&, std::vector<std::string>&);
78 boost::shared_ptr<Port> get_port_by_name (const std::string &);
79 void port_renamed (const std::string&, const std::string&);
80 std::string make_port_name_relative (const std::string& name) const;
81 std::string make_port_name_non_relative (const std::string& name) const;
82 std::string get_pretty_name_by_name (const std::string& portname) const;
83 bool port_is_mine (const std::string& fullname) const;
84 bool port_name_prefix_is_unique (const std::string& first_part_of_port_name) const;
86 /* other Port management */
88 bool port_is_physical (const std::string&) const;
89 void get_physical_outputs (DataType type, std::vector<std::string>&);
90 void get_physical_inputs (DataType type, std::vector<std::string>&);
91 ChanCount n_physical_outputs () const;
92 ChanCount n_physical_inputs () const;
94 int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>&);
95 int get_ports (DataType, PortList&);
97 void remove_all_ports ();
99 /* per-Port monitoring */
101 bool can_request_input_monitoring () const;
102 void request_input_monitoring (const std::string&, bool) const;
103 void ensure_input_monitoring (const std::string&, bool) const;
105 class PortRegistrationFailure : public std::exception {
107 PortRegistrationFailure (std::string const & why = "")
110 ~PortRegistrationFailure () throw () {}
112 const char *what() const throw () { return reason.c_str(); }
118 /* the port engine will invoke these callbacks when the time is right */
120 void registration_callback ();
121 int graph_order_callback ();
122 void connect_callback (const std::string&, const std::string&, bool connection);
124 bool port_remove_in_progress() const { return _port_remove_in_progress; }
126 /** Emitted if the backend notifies us of a graph order event */
127 PBD::Signal0<void> GraphReordered;
129 /** Emitted if a Port is registered or unregistered */
130 PBD::Signal0<void> PortRegisteredOrUnregistered;
132 /** Emitted if a Port is connected or disconnected.
133 * The Port parameters are the ports being connected / disconnected, or 0 if they are not known to Ardour.
134 * The std::string parameters are the (long) port names.
135 * The bool parameter is true if ports were connected, or false for disconnected.
137 PBD::Signal5<void, boost::weak_ptr<Port>, std::string, boost::weak_ptr<Port>, std::string, bool> PortConnectedOrDisconnected;
140 boost::shared_ptr<AudioBackend> _backend;
141 SerializedRCUManager<Ports> ports;
142 bool _port_remove_in_progress;
144 boost::shared_ptr<Port> register_port (DataType type, const std::string& portname, bool input, bool async = false);
145 void port_registration_failure (const std::string& portname);
147 /** List of ports to be used between ::cycle_start() and ::cycle_end()
149 boost::shared_ptr<Ports> _cycle_ports;
151 void fade_out (gain_t, gain_t, pframes_t);
152 void silence (pframes_t nframes);
153 void silence_outputs (pframes_t nframes);
154 void check_monitoring ();
155 /** Signal the start of an audio cycle.
156 * This MUST be called before any reading/writing for this cycle.
159 void cycle_start (pframes_t nframes);
161 /** Signal the end of an audio cycle.
162 * This signifies that the cycle began with @ref cycle_start has ended.
163 * This MUST be called at the end of each cycle.
166 void cycle_end (pframes_t nframes);
173 #endif /* __libardour_port_manager_h__ */