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Diffstat (limited to 'shared/common/mifi.h')
| -rw-r--r-- | shared/common/mifi.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/shared/common/mifi.h b/shared/common/mifi.h new file mode 100644 index 0000000..3893616 --- /dev/null +++ b/shared/common/mifi.h @@ -0,0 +1,84 @@ +/* Copyright (c) 2001-2003 krzYszcz and others. + * For information on usage and redistribution, and for a DISCLAIMER OF ALL + * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ + +/* reading/writing midifiles, a prototype version */ + +#ifndef __MIFI_H__ +#define __MIFI_H__ + +/* event types, as returned by mifi_read_event() */ +#define MIFI_READ_FATAL -3 /* unexpected eof, error in last track, or file error */ +#define MIFI_READ_EOF -2 /* regular eof */ +#define MIFI_READ_SKIP -1 /* error and successful skip to the next track */ +#define MIFI_META_SEQNUM 0 +#define MIFI_META_TEXT 1 +#define MIFI_META_COPYRIGHT 2 +#define MIFI_META_TRACKNAME 3 +#define MIFI_META_INSTRUMENT 4 +#define MIFI_META_LYRIC 5 +#define MIFI_META_MARKER 6 +#define MIFI_META_CUE 7 +#define MIFI_META_MAXPRINTABLE 15 /* 1..15 are various text meta-events */ +#define MIFI_META_CHANNEL 0x20 /* channel prefix */ +#define MIFI_META_EOT 0x2f /* end of track */ +#define MIFI_META_TEMPO 0x51 +#define MIFI_META_SMPTE 0x54 /* SMPTE offset */ +#define MIFI_META_TIMESIG 0x58 /* time signature */ +#define MIFI_META_KEYSIG 0x59 /* key signature */ +/* ...channel status codes go here, too obvious to #define... */ +#define MIFI_SYSEX_FIRST 0xf0 +#define MIFI_SYSEX_NEXT 0xf7 +/* this code is not returned as an event type, but in e_status of t_mifi_event */ +#define MIFI_EVENT_META 0xff + +/* true if one of channel messages */ +#define MIFI_IS_CHANNEL(status) (((status) & 0x80) && (status) < 0xf0) +/* true if one of the two shorter channel messages */ +#define MIFI_ONE_DATABYTE(status) (((status) & 0xe0) == 0xc0) + +/* derived from t_squeve */ +typedef struct _mifi_event +{ + uint32 e_length; + uchar *e_data; + size_t e_bufsize; + uint32 e_delay; + uchar e_status; + uchar e_channel; + uchar e_meta; /* meta-event type */ +} t_mifi_event; + +/* This structure holds midi data stream properties, i.e. both the info stored + in midifile header, and the current state according to position in a stream. */ +/* LATER clean up t_sq and derive t_mifi_stream */ +typedef struct _sq t_mifi_stream; + +/* prototypes of public interface routines */ + +t_mifi_event *mifi_event_new(void); +void mifi_event_free(t_mifi_event *e); +int mifi_event_settext(t_mifi_event *e, int type, char *text); +void mifi_event_printmeta(t_mifi_event *e); + +t_mifi_stream *mifi_stream_new(void); +void mifi_stream_reset(t_mifi_stream *x); +void mifi_stream_free(t_mifi_stream *x); + +t_mifi_stream *mifi_read_start(t_mifi_stream *x, + const char *filename, const char *dirname, + int complain); +int mifi_read_restart(t_mifi_stream *x); +void mifi_read_end(t_mifi_stream *x); +int mifi_read_event(t_mifi_stream *x, t_mifi_event *e); +int mifi_read_analyse(t_mifi_stream *stp); +int mifi_read_doit(t_mifi_stream *stp); + +t_mifi_stream *mifi_write_start(t_mifi_stream *x, + const char *filename, const char *dirname); +void mifi_write_end(t_mifi_stream *x); +int mifi_write_start_track(t_mifi_stream *x); +int mifi_write_adjust_track(t_mifi_stream *x, uint32 eotdelay); +int mifi_write_event(t_mifi_stream *x, t_mifi_event *e); + +#endif |