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/*
Copyright (C) 2009 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 "ardour/data_type.h"
#include "ardour/types.h"
#include <sigc++/trackable.h>
#include <jack/jack.h>
#include <string>
#include <set>
#include <vector>
namespace ARDOUR {
class AudioEngine;
class Buffer;
class Port : public sigc::trackable
{
public:
enum Flags {
IsInput = JackPortIsInput,
IsOutput = JackPortIsOutput,
};
virtual ~Port ();
/** @return Port name (excluding prefix) */
std::string name () const {
return _name;
}
int set_name (std::string const &);
/** @return flags */
Flags flags () const {
return _flags;
}
/** @return true if this Port receives input, otherwise false */
bool receives_input () const {
return _flags & IsInput;
}
/** @return true if this Port sends output, otherwise false */
bool sends_output () const {
return _flags & IsOutput;
}
/* @return true if this port is visible outside Ardour (via JACK) */
bool external () const {
return _jack_port != 0;
}
bool connected () const;
int disconnect_all ();
int get_connections (std::vector<std::string> &) const;
/* connection by name */
bool connected_to (std::string const &) const;
int connect (std::string const &);
int disconnect (std::string const &);
/* connection by Port* */
bool connected_to (Port *) const;
int connect (Port *);
int disconnect (Port *);
void ensure_monitor_input (bool);
bool monitoring_input () const;
nframes_t total_latency () const;
int reestablish ();
int reconnect ();
void set_latency (nframes_t);
void request_monitor_input (bool);
void make_external ();
virtual void reset ();
virtual DataType type () const = 0;
virtual void cycle_start (nframes_t, nframes_t) = 0;
virtual void cycle_end (nframes_t, nframes_t) = 0;
virtual Buffer& get_buffer (nframes_t, nframes_t) = 0;
virtual void flush_buffers (nframes_t, nframes_t) {}
static void set_engine (AudioEngine *);
sigc::signal<void, bool> MonitorInputChanged;
protected:
Port (std::string const &, DataType, Flags, bool);
jack_port_t* _jack_port; ///< JACK port, or 0 if we don't have one
std::set<Port*> _connections; ///< internal Ports that we are connected to
static AudioEngine* _engine; ///< the AudioEngine
private:
friend class AudioEngine;
void recompute_total_latency () const;
void do_make_external (DataType);
/* XXX */
bool _last_monitor;
nframes_t _latency;
std::string _name; ///< port name (excluding prefix)
Flags _flags; ///< flags
/// list of JACK ports that we are connected to; we only keep this around
/// so that we can implement ::reconnect ()
std::set<std::string> _named_connections;
};
}
#endif
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