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 
00045 /* Get number of events in a port buffer.
00046  *
00047  * @param port_buffer Port buffer from which to retrieve event.
00048  * @return number of events inside @a port_buffer
00049  */
00050 jack_nframes_t
00051 jack_midi_get_event_count(void*          port_buffer);
00052 
00053 
00065 int
00066 jack_midi_event_get(jack_midi_event_t *event,
00067                     void              *port_buffer,
00068                     jack_nframes_t     event_index);
00069 
00070 
00079 void
00080 jack_midi_clear_buffer(void           *port_buffer);
00081 
00082 
00090 size_t
00091 jack_midi_max_event_size(void* port_buffer);
00092 
00093 
00109 jack_midi_data_t*
00110 jack_midi_event_reserve(void           *port_buffer,
00111                         jack_nframes_t  time, 
00112                         size_t          data_size);
00113 
00114 
00127 int
00128 jack_midi_event_write(void                   *port_buffer,
00129                       jack_nframes_t          time,
00130                       const jack_midi_data_t *data,
00131                       size_t                  data_size);
00132 
00133 
00142 jack_nframes_t
00143 jack_midi_get_lost_event_count(void           *port_buffer);
00144 
00145 
00146 #ifdef __cplusplus
00147 }
00148 #endif
00149 
00150 
00151 #endif /* __JACK_MIDIPORT_H */
00152 
00153 

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