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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.
*/
#ifndef __ardour_port_h__
#define __ardour_port_h__
#include <set>
#include <vector>
#include <string>
#include <cstring>
#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 ports
*/
class Port : public virtual sigc::trackable {
public:
enum Flags {
IsInput = JackPortIsInput,
IsOutput = JackPortIsOutput,
IsPhysical = JackPortIsPhysical,
IsTerminal = JackPortIsTerminal,
CanMonitor = JackPortCanMonitor
};
virtual ~Port();
std::string name() const {
return _name;
}
Flags flags() const {
return _flags;
}
bool receives_input() const {
return _flags & IsInput;
}
bool sends_output () const {
return _flags & IsOutput;
}
bool can_monitor () const {
return _flags & CanMonitor;
}
void enable_metering() {
_metering++;
}
void disable_metering () {
if (_metering) { _metering--; }
}
virtual void cycle_start (nframes_t nframes, nframes_t offset) {}
virtual void cycle_end (nframes_t nframes, nframes_t offset) {}
virtual DataType type() const = 0;
virtual Buffer& get_buffer() = 0;
virtual bool connected () const;
virtual bool connected_to (const std::string& portname) const;
virtual int get_connections (std::vector<std::string>&) const;
virtual int connect (Port& other);
virtual int disconnect (Port& other);
virtual int disconnect_all ();
virtual void reset ();
virtual int reestablish () {return 0; }
virtual int reconnect () { return 0; }
virtual int set_name (const std::string& str) {
_name = str;
return 0;
}
virtual std::string short_name() const = 0;
virtual bool monitoring_input () const = 0;
virtual void ensure_monitor_input (bool yn) = 0;
virtual void request_monitor_input (bool yn) = 0;
virtual nframes_t latency () const = 0;
virtual nframes_t total_latency () const = 0;
virtual void set_latency (nframes_t nframes) = 0;
sigc::signal<void,bool> MonitorInputChanged;
sigc::signal<void,bool> ClockSyncChanged;
static void set_engine (AudioEngine*);
protected:
friend class AudioEngine;
Port (const std::string& name, Flags flgs);
virtual void recompute_total_latency() const {}
/* engine isn't supposed to access below here */
Flags _flags;
std::string _type;
std::string _name;
unsigned short _metering;
bool _last_monitor;
nframes_t _latency;
std::set<Port*> _connections;
static AudioEngine* engine;
};
class PortConnectableByName {
public:
PortConnectableByName() {}
virtual ~PortConnectableByName() {}
virtual int connect (const std::string& other_name) = 0;
virtual int disconnect (const std::string& other_name) = 0;
};
class PortFacade : public virtual Port, public PortConnectableByName {
public:
PortFacade (const std::string& name, Flags flgs) : Port (name, flgs), _ext_port (0) {}
~PortFacade() {}
void reset ();
int reestablish ();
int reconnect ();
int connect (Port& other);
int disconnect (Port& other);
int disconnect_all ();
int connect (const std::string& other_name);
int disconnect (const std::string& other_name);
bool connected () const;
bool connected_to (const std::string& portname) const;
int get_connections (std::vector<std::string>&) const;
std::string short_name() const;
int set_name (const std::string& str);
bool monitoring_input () const;
void ensure_monitor_input (bool yn);
void request_monitor_input (bool yn);
nframes_t latency () const;
nframes_t total_latency () const;
void set_latency (nframes_t nframes);
protected:
Port* _ext_port;
};
} // namespace ARDOUR
#endif /* __ardour_port_h__ */
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