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/*
* Event types 0 to 127 are available for private use
* by applications
*/
#define EV_PRIVATE_META 0
#define MAX_TRACK 256
struct midi_hdr
{
int MThd_fmt;
int MThd_ntrk; /* Num of tracks */
int time_mode;
#define TIME_MIDI 1
int division;
#define TIME_SMPTE 2
int SMPTE_format;
int SMPTE_resolution;
};
struct mlib_track
{
int len;
unsigned char *events;
/*
* The flags are set when loading the track. Let's hope they are
* updated also when the track gets changed.
*/
unsigned long flags;
#define TRK_MULTICHN 0x00000001 /* More than one channel */
#define TRK_MULTIPGM 0x00000002 /* More than one program */
#define TRK_VEL_NOTEON 0x00000004 /* Events with on vel. <> 64 */
#define TRK_AFTERTOUCH 0x00000008 /* Aftertouch events */
#define TRK_POLY_AFTERTOUCH 0x00000010 /* Polyph. aftertouch events */
#define TRK_VEL_NOTEOFF 0x00000020 /* Events with off vel. <> 64 */
#define TRK_CONTROLS 0x00000040 /* Controller events */
#define TRK_BENDER 0x00000080 /* Bender events */
#define TRK_NOTES 0x00000100 /* At least one note on */
int init_chn; /* First chn referenced by the track */
int init_pgm; /* First pgm referenced by the track */
int chn; /* chn assigned to the track */
int chnmask; /* channel bitmap */
int port; /* port assigned to the track */
int pgm; /* pgm assigned to the track */
int current_time;
int noteon_time; /* Time of the first noteon */
int end_time;
int min_note, max_note; /* Scale info */
short pgm_map[128]; /* MIDI pgm mapping table */
short drum_map[128]; /* MIDI drum pgm mapping table */
};
typedef struct mlib_track mlib_track;
struct mlib_desc
{
int magic; /* 0x121234 */
int fd;
char path[1024];
struct midi_hdr hdr;
int curr_trk;
int trk_offs;
int next_trk_offs;
unsigned char buf[1024];
int bufcnt, bufp;
unsigned int timesig;
unsigned char prev_status; /* For running status */
mlib_track *control_track;
mlib_track *tracks[MAX_TRACK];
};
typedef struct mlib_desc mlib_desc;
int mlib_chkdesc (mlib_desc * desc);
mlib_track *mlib_loadtrack (mlib_desc * desc, int *end_detected);
void mlib_deltrack (mlib_track * track);
mlib_desc *mlib_open (char *path);
void mlib_close (mlib_desc * desc);
char *mlib_errmsg (void);
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