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/*
Copyright (C) 2002 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#ifndef __ardour_port_h__
#define __ardour_port_h__
#include <sigc++/signal.h>
#include <pbd/failed_constructor.h>
#include <ardour/ardour.h>
#include <ardour/data_type.h>
#include <jack/jack.h>
namespace ARDOUR {
class AudioEngine;
class Buffer;
/** Abstract base for all outside ports (eg Jack ports)
*/
class Port : public sigc::trackable {
public:
virtual ~Port() {
free (_port);
}
virtual DataType type() const = 0;
virtual void cycle_start(jack_nframes_t nframes) {}
virtual void cycle_end() {}
virtual Buffer& get_buffer() = 0;
/** Silence/Empty the port, output ports only */
virtual void silence (jack_nframes_t nframes, jack_nframes_t offset) = 0;
std::string name() const {
return _name;
}
std::string short_name() {
return jack_port_short_name (_port);
}
int set_name (std::string str);
JackPortFlags flags() const {
return _flags;
}
bool is_mine (jack_client_t *client) {
return jack_port_is_mine (client, _port);
}
int connected () const {
return jack_port_connected (_port);
}
bool connected_to (const std::string& portname) const {
return jack_port_connected_to (_port, portname.c_str());
}
const char ** get_connections () const {
return jack_port_get_connections (_port);
}
bool receives_input() const {
return _flags & JackPortIsInput;
}
bool sends_output () const {
return _flags & JackPortIsOutput;
}
bool monitoring_input () const {
return jack_port_monitoring_input (_port);
}
bool can_monitor () const {
return _flags & JackPortCanMonitor;
}
void enable_metering() {
_metering++;
}
void disable_metering () {
if (_metering) { _metering--; }
}
void ensure_monitor_input (bool yn) {
#ifdef WITH_JACK_PORT_ENSURE_MONITOR
jack_port_ensure_monitor (_port, yn);
#else
jack_port_request_monitor(_port, yn);
#endif
}
/*XXX completely bloody useless imho*/
void request_monitor_input (bool yn) {
jack_port_request_monitor (_port, yn);
}
jack_nframes_t latency () const {
return jack_port_get_latency (_port);
}
void set_latency (jack_nframes_t nframes) {
jack_port_set_latency (_port, nframes);
}
bool is_silent() const { return _silent; }
void mark_silence (bool yn) {
_silent = yn;
}
sigc::signal<void,bool> MonitorInputChanged;
sigc::signal<void,bool> ClockSyncChanged;
protected:
friend class AudioEngine;
Port (jack_port_t *port);
virtual void reset ();
/* engine isn't supposed to access below here */
/* cache these 3 from JACK so we can access them for reconnecting */
JackPortFlags _flags;
std::string _type;
std::string _name;
jack_port_t* _port;
unsigned short _metering;
bool _last_monitor : 1;
bool _silent : 1;
};
} // namespace ARDOUR
#endif /* __ardour_port_h__ */
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