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/*
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
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.
$Id$
*/
#include <sigc++/sigc++.h>
#include "ardour/types.h"
#include "midi++/jack.h"
#ifndef TICKER_H_
#define TICKER_H_
namespace ARDOUR
{
class Session;
class Ticker : public sigc::trackable
{
public:
Ticker() : _session(0) {};
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; delete this; }
protected:
Session* _session;
};
class MidiClockTicker : public Ticker
{
public:
MidiClockTicker() : _jack_port(0), _ppqn(24), _last_tick(0.0) {};
virtual ~MidiClockTicker() {};
void tick(
const nframes_t& transport_frames,
const BBT_Time& transport_bbt,
const SMPTE::Time& transport_smpte);
void set_session(Session& s);
void going_away() { Ticker::going_away(); _jack_port = 0;}
/// 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::JACK_MidiPort* _jack_port;
int _ppqn;
double _last_tick;
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);
};
}
#endif /* TICKER_H_ */
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