/*
- Copyright (C) 2008 Hans Baier
+ Copyright (C) 2008 Hans Baier
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
$Id$
*/
-#include <sigc++/sigc++.h>
-#include "ardour/types.h"
+
#include "midi++/jack.h"
+#include "pbd/signals.h"
+
+#include "ardour/types.h"
+#include "ardour/session_handle.h"
+
#ifndef TICKER_H_
#define TICKER_H_
class Session;
-class Ticker : public sigc::trackable
+class Ticker : public SessionHandlePtr
{
public:
- Ticker() : _session(0) {};
- virtual ~Ticker() {};
-
+ Ticker() {};
+ virtual ~Ticker() {}
+
virtual void tick(
- const nframes_t& transport_frames,
- const BBT_Time& transport_bbt,
- const SMPTE::Time& transport_smpte) = 0;
-
- virtual void set_session(Session& s);
- virtual void going_away() { _session = 0; }
+ const nframes_t& transport_frames,
+ const BBT_Time& transport_bbt,
+ const Timecode::Time& transport_timecode) = 0;
-private:
- Session* _session;
+ void set_session (Session* s);
};
class MidiClockTicker : public Ticker
{
- MidiClockTicker() : _jack_port(0) {};
+ /// Singleton
+private:
+ MidiClockTicker() : _midi_port(0), _ppqn(24), _last_tick(0.0) {};
+ MidiClockTicker( const MidiClockTicker& );
+ MidiClockTicker& operator= (const MidiClockTicker&);
+
+public:
virtual ~MidiClockTicker() {};
-
-
+
+ static MidiClockTicker& instance() {
+ static MidiClockTicker _instance;
+ return _instance;
+ }
+
void tick(
- const nframes_t& transport_frames,
- const BBT_Time& transport_bbt,
- const SMPTE::Time& transport_smpte);
-
-
- void going_away() { Ticker::going_away(); _jack_port = 0;}
-
- void set_midi_port(MIDI::JACK_MidiPort &port);
-
-private:
- MIDI::JACK_MidiPort* _jack_port;
-
+ const nframes_t& transport_frames,
+ const BBT_Time& transport_bbt,
+ const Timecode::Time& transport_timecode);
+
+ void set_session (Session* s);
+ void session_going_away();
+
+ /// slot for the signal session::MIDIClock_PortChanged
+ void update_midi_clock_port();
+
+ /// slot for the signal session::TransportStateChange
+ void transport_state_changed();
+
+ /// slot for the signal session::PositionChanged
+ void position_changed(nframes_t position);
+
+ /// slot for the signal session::TransportLooped
+ void transport_looped();
+
+ /// pulses per quarter note (default 24)
+ void set_ppqn(int ppqn) { _ppqn = ppqn; }
+
+private:
+ MIDI::Port* _midi_port;
+ int _ppqn;
+ double _last_tick;
+
+ double one_ppqn_in_frames(nframes_t transport_position);
+
+ void send_midi_clock_event(nframes_t offset);
+ void send_start_event(nframes_t offset);
+ void send_continue_event(nframes_t offset);
+ void send_stop_event(nframes_t offset);
};
}