midiport.h

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00001 /*
00002     Copyright (C) 2004 Ian Esten
00003     
00004     This program is free software; you can redistribute it and/or modify
00005     it under the terms of the GNU Lesser General Public License as published by
00006     the Free Software Foundation; either version 2.1 of the License, or
00007     (at your option) any later version.
00008     
00009     This program is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012     GNU Lesser General Public License for more details.
00013     
00014     You should have received a copy of the GNU Lesser General Public License
00015     along with this program; if not, write to the Free Software 
00016     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017 
00018 */
00019 
00020 
00021 #ifndef __JACK_MIDIPORT_H
00022 #define __JACK_MIDIPORT_H
00023 
00024 #ifdef __cplusplus
00025 extern "C" {
00026 #endif
00027         
00028 #include <jack/types.h>
00029 #include <stdlib.h>
00030 
00031         
00033 typedef unsigned char jack_midi_data_t;
00034 
00035 
00037 typedef struct _jack_midi_event
00038 {
00039         jack_nframes_t    time;   
00040         size_t            size;   
00041         jack_midi_data_t *buffer; 
00042 } jack_midi_event_t;
00043 
00044 
00050 /* Get number of events in a port buffer.
00051  *
00052  * @param port_buffer Port buffer from which to retrieve event.
00053  * @return number of events inside @a port_buffer
00054  */
00055 jack_nframes_t
00056 jack_midi_get_event_count(void*          port_buffer);
00057 
00058 
00070 int
00071 jack_midi_event_get(jack_midi_event_t *event,
00072                     void              *port_buffer,
00073                     jack_nframes_t     event_index);
00074 
00075 
00084 void
00085 jack_midi_clear_buffer(void           *port_buffer);
00086 
00087 
00095 size_t
00096 jack_midi_max_event_size(void* port_buffer);
00097 
00098 
00114 jack_midi_data_t*
00115 jack_midi_event_reserve(void           *port_buffer,
00116                         jack_nframes_t  time, 
00117                         size_t          data_size);
00118 
00119 
00132 int
00133 jack_midi_event_write(void                   *port_buffer,
00134                       jack_nframes_t          time,
00135                       const jack_midi_data_t *data,
00136                       size_t                  data_size);
00137 
00138 
00147 jack_nframes_t
00148 jack_midi_get_lost_event_count(void           *port_buffer);
00149 
00153 #ifdef __cplusplus
00154 }
00155 #endif
00156 
00157 
00158 #endif /* __JACK_MIDIPORT_H */
00159 
00160 
00161