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.
20 #ifndef __ardour_port_h__
21 #define __ardour_port_h__
24 #include <sigc++/signal.h>
25 #include <pbd/failed_constructor.h>
26 #include <ardour/ardour.h>
27 #include <jack/jack.h>
33 class Port : public sigc::trackable {
36 // Port is an opage pointer, so should be be desallocated ??
39 Sample *get_buffer (nframes_t nframes) {
40 return (Sample *) jack_port_get_buffer (_port, nframes);
47 std::string short_name() {
48 return jack_port_short_name (_port);
51 int set_name (std::string str);
53 JackPortFlags flags() const {
57 bool is_mine (jack_client_t *client) {
58 return jack_port_is_mine (client, _port);
61 const char* type() const {
65 int connected () const {
66 return jack_port_connected (_port);
69 bool connected_to (const std::string& portname) const {
70 return jack_port_connected_to (_port, portname.c_str());
73 const char ** get_connections () const {
74 return jack_port_get_connections (_port);
83 void reset_peak_meter () {
87 void reset_meters () {
92 void enable_metering() {
96 void disable_metering () {
97 if (_metering) { _metering--; }
100 float peak_db() const { return _peak_db; }
101 jack_default_audio_sample_t peak() const { return _peak; }
103 uint32_t short_overs () const { return _short_overs; }
104 uint32_t long_overs () const { return _long_overs; }
106 static void set_short_over_length (nframes_t);
107 static void set_long_over_length (nframes_t);
109 bool receives_input() const {
110 return _flags & JackPortIsInput;
113 bool sends_output () const {
114 return _flags & JackPortIsOutput;
117 bool monitoring_input () const {
118 return jack_port_monitoring_input (_port);
121 bool can_monitor () const {
122 return _flags & JackPortCanMonitor;
125 void ensure_monitor_input (bool yn) {
127 #ifdef HAVE_JACK_PORT_ENSURE_MONITOR
128 jack_port_ensure_monitor (_port, yn);
130 jack_port_request_monitor(_port, yn);
135 /*XXX completely bloody useless imho*/
136 void request_monitor_input (bool yn) {
137 jack_port_request_monitor (_port, yn);
140 nframes_t latency () const {
141 return jack_port_get_latency (_port);
144 void set_latency (nframes_t nframes) {
145 jack_port_set_latency (_port, nframes);
148 sigc::signal<void,bool> MonitorInputChanged;
149 sigc::signal<void,bool> ClockSyncChanged;
151 bool is_silent() const { return _silent; }
153 /** Assumes that the port is an audio output port */
154 void silence (nframes_t nframes, nframes_t offset) {
156 memset ((Sample *) jack_port_get_buffer (_port, nframes) + offset, 0, sizeof (Sample) * nframes);
158 /* XXX this isn't really true, but i am not sure
159 how to set this correctly. we really just
160 want to set it true when the entire port
161 buffer has been overrwritten.
168 void mark_silence (bool yn) {
173 friend class AudioEngine;
175 Port (jack_port_t *port);
178 /* engine isn't supposed to below here */
180 /* cache these 3 from JACK so that we can
181 access them for reconnecting.
184 JackPortFlags _flags;
188 bool _last_monitor : 1;
192 jack_default_audio_sample_t _peak;
194 uint32_t _short_overs;
195 uint32_t _long_overs;
196 unsigned short _metering;
198 static nframes_t _long_over_length;
199 static nframes_t _short_over_length;
202 } // namespace ARDOUR
204 #endif /* __ardour_port_h__ */