/*
    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.

    $Id: port.h 712 2006-07-28 01:08:57Z drobilla $
*/

#ifndef __ardour_midi_port_h__
#define __ardour_midi_port_h__

#include <sigc++/signal.h>
#include <pbd/failed_constructor.h>
#include <ardour/ardour.h>
#include <jack/jack.h>
#include <jack/midiport.h>
#include <ardour/port.h>
#include <ardour/buffer.h>

namespace ARDOUR {

class MidiEngine;

class MidiPort : public Port {
   public:
	virtual ~MidiPort();
	
	DataType type() const { return DataType(DataType::MIDI); }

	Buffer& get_buffer() {
		return _buffer;
	}

	MidiBuffer& get_midi_buffer() {
		return _buffer;
	}
	
	void cycle_start(nframes_t nframes);
	void cycle_end();

	size_t capacity() { return _buffer.capacity(); }
	size_t size()     { return _buffer.size(); }

  protected:
	friend class AudioEngine;

	MidiPort (jack_port_t *port);
	
	/* engine isn't supposed to access below here */

	MidiBuffer     _buffer;
	nframes_t _nframes_this_cycle;
};
 
} // namespace ARDOUR

#endif /* __ardour_midi_port_h__ */