2 Copyright (C) 2002 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 #ifndef __ardour_port_h__
22 #define __ardour_port_h__
24 #include <sigc++/signal.h>
25 #include <pbd/failed_constructor.h>
26 #include <ardour/ardour.h>
27 #include <ardour/data_type.h>
28 #include <jack/jack.h>
35 /** Abstract base for all outside ports (eg Jack ports)
37 class Port : public sigc::trackable {
43 virtual DataType type() const = 0;
45 virtual void cycle_start(jack_nframes_t nframes) {}
46 virtual void cycle_end() {}
48 virtual Buffer& get_buffer() = 0;
50 /** Silence/Empty the port, output ports only */
51 virtual void silence (jack_nframes_t nframes, jack_nframes_t offset) = 0;
54 std::string name() const {
58 std::string short_name() {
59 return jack_port_short_name (_port);
62 int set_name (std::string str);
64 JackPortFlags flags() const {
68 bool is_mine (jack_client_t *client) {
69 return jack_port_is_mine (client, _port);
72 int connected () const {
73 return jack_port_connected (_port);
76 bool connected_to (const std::string& portname) const {
77 return jack_port_connected_to (_port, portname.c_str());
80 const char ** get_connections () const {
81 return jack_port_get_connections (_port);
84 bool receives_input() const {
85 return _flags & JackPortIsInput;
88 bool sends_output () const {
89 return _flags & JackPortIsOutput;
92 bool monitoring_input () const {
93 return jack_port_monitoring_input (_port);
96 bool can_monitor () const {
97 return _flags & JackPortCanMonitor;
100 void enable_metering() {
104 void disable_metering () {
105 if (_metering) { _metering--; }
108 void ensure_monitor_input (bool yn) {
110 #ifdef WITH_JACK_PORT_ENSURE_MONITOR
111 jack_port_ensure_monitor (_port, yn);
113 jack_port_request_monitor(_port, yn);
118 /*XXX completely bloody useless imho*/
119 void request_monitor_input (bool yn) {
120 jack_port_request_monitor (_port, yn);
123 jack_nframes_t latency () const {
124 return jack_port_get_latency (_port);
127 void set_latency (jack_nframes_t nframes) {
128 jack_port_set_latency (_port, nframes);
131 bool is_silent() const { return _silent; }
133 void mark_silence (bool yn) {
137 sigc::signal<void,bool> MonitorInputChanged;
138 sigc::signal<void,bool> ClockSyncChanged;
141 friend class AudioEngine;
143 Port (jack_port_t *port);
145 virtual void reset ();
147 /* engine isn't supposed to access below here */
149 /* cache these 3 from JACK so we can access them for reconnecting */
150 JackPortFlags _flags;
156 unsigned short _metering;
158 bool _last_monitor : 1;
162 } // namespace ARDOUR
164 #endif /* __ardour_port_h__ */