midiport.h

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/*
    Copyright (C) 2004 Ian Esten
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
    
    You should have received a copy of the GNU Lesser General Public License
    along with this program; if not, write to the Free Software 
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

*/


#ifndef __JACK_MIDIPORT_H
#define __JACK_MIDIPORT_H

#ifdef __cplusplus
extern "C" {
#endif
        
#include <jack/types.h>
#include <stdlib.h>

        
typedef unsigned char jack_midi_data_t;


typedef struct _jack_midi_event
{
        jack_nframes_t    time;   
        size_t            size;   
        jack_midi_data_t *buffer; 
} jack_midi_event_t;


/* Get number of events in a port buffer.
 *
 * @param port_buffer Port buffer from which to retrieve event.
 * @return number of events inside @a port_buffer
 */
jack_nframes_t
jack_midi_get_event_count(void*          port_buffer);


int
jack_midi_event_get(jack_midi_event_t *event,
                    void              *port_buffer,
                    jack_nframes_t     event_index);


void
jack_midi_clear_buffer(void           *port_buffer);


size_t
jack_midi_max_event_size(void* port_buffer);


jack_midi_data_t*
jack_midi_event_reserve(void           *port_buffer,
                        jack_nframes_t  time, 
                        size_t          data_size);


int
jack_midi_event_write(void                   *port_buffer,
                      jack_nframes_t          time,
                      const jack_midi_data_t *data,
                      size_t                  data_size);


jack_nframes_t
jack_midi_get_lost_event_count(void           *port_buffer);


#ifdef __cplusplus
}
#endif


#endif /* __JACK_MIDIPORT_H */

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