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/*
Copyright (C) 1998-2010 Paul Barton-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 __libmidi_port_h__
#define __libmidi_port_h__
#include <string>
#include <iostream>
#include <jack/types.h>
#include "pbd/xml++.h"
#include "pbd/crossthread.h"
#include "pbd/signals.h"
#include "pbd/ringbuffer.h"
#include "evoral/Event.hpp"
#include "evoral/EventRingBuffer.hpp"
#include "midi++/types.h"
#include "midi++/parser.h"
#include "midi++/port.h"
namespace MIDI {
class Channel;
class PortRequest;
class JackMIDIPort : public Port {
public:
JackMIDIPort (std::string const &, Port::Flags, jack_client_t *);
JackMIDIPort (const XMLNode&, jack_client_t *);
~JackMIDIPort ();
XMLNode& get_state () const;
void set_state (const XMLNode&);
void cycle_start (pframes_t nframes);
void cycle_end ();
void parse (framecnt_t timestamp);
int write (const byte *msg, size_t msglen, timestamp_t timestamp);
int read (byte *buf, size_t bufsize);
void drain (int check_interval_usecs);
int selectable () const { return xthread.selectable(); }
pframes_t nframes_this_cycle() const { return _nframes_this_cycle; }
void reestablish (jack_client_t *);
void reconnect ();
static void set_process_thread (pthread_t);
static pthread_t get_process_thread () { return _process_thread; }
static bool is_process_thread();
static PBD::Signal0<void> MakeConnections;
static PBD::Signal0<void> JackHalted;
private:
bool _currently_in_cycle;
pframes_t _nframes_this_cycle;
jack_client_t* _jack_client;
jack_port_t* _jack_port;
timestamp_t _last_write_timestamp;
RingBuffer< Evoral::Event<double> > output_fifo;
Evoral::EventRingBuffer<timestamp_t> input_fifo;
Glib::Mutex output_fifo_lock;
CrossThreadChannel xthread;
int create_port ();
/** Channel used to signal to the MidiControlUI that input has arrived */
std::string _connections;
PBD::ScopedConnection connect_connection;
PBD::ScopedConnection halt_connection;
void flush (void* jack_port_buffer);
void jack_halted ();
void make_connections ();
void init (std::string const &, Flags);
static pthread_t _process_thread;
};
} // namespace MIDI
#endif // __libmidi_port_h__
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