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ardour/libs/fluidsynth/src/fluid_midi.h

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/* FluidSynth - A Software Synthesizer
*
* Copyright (C) 2003 Peter Hanappe and others.
*
* This library 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 library 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 library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
*/
#ifndef _FLUID_MIDI_H
#define _FLUID_MIDI_H
#include "fluidsynth_priv.h"
#include "fluid_sys.h"
#include "fluid_list.h"
typedef struct _fluid_midi_parser_t fluid_midi_parser_t;
fluid_midi_parser_t *new_fluid_midi_parser(void);
void delete_fluid_midi_parser(fluid_midi_parser_t *parser);
fluid_midi_event_t *fluid_midi_parser_parse(fluid_midi_parser_t *parser, unsigned char c);
/***************************************************************
*
* CONSTANTS & ENUM
*/
#define MAX_NUMBER_OF_TRACKS 128
enum fluid_midi_event_type
{
/* channel messages */
NOTE_OFF = 0x80,
NOTE_ON = 0x90,
KEY_PRESSURE = 0xa0,
CONTROL_CHANGE = 0xb0,
PROGRAM_CHANGE = 0xc0,
CHANNEL_PRESSURE = 0xd0,
PITCH_BEND = 0xe0,
/* system exclusive */
MIDI_SYSEX = 0xf0,
/* system common - never in midi files */
MIDI_TIME_CODE = 0xf1,
MIDI_SONG_POSITION = 0xf2,
MIDI_SONG_SELECT = 0xf3,
MIDI_TUNE_REQUEST = 0xf6,
MIDI_EOX = 0xf7,
/* system real-time - never in midi files */
MIDI_SYNC = 0xf8,
MIDI_TICK = 0xf9,
MIDI_START = 0xfa,
MIDI_CONTINUE = 0xfb,
MIDI_STOP = 0xfc,
MIDI_ACTIVE_SENSING = 0xfe,
MIDI_SYSTEM_RESET = 0xff,
/* meta event - for midi files only */
MIDI_META_EVENT = 0xff
};
enum fluid_midi_control_change
{
BANK_SELECT_MSB = 0x00,
MODULATION_MSB = 0x01,
BREATH_MSB = 0x02,
FOOT_MSB = 0x04,
PORTAMENTO_TIME_MSB = 0x05,
DATA_ENTRY_MSB = 0x06,
VOLUME_MSB = 0x07,
BALANCE_MSB = 0x08,
PAN_MSB = 0x0A,
EXPRESSION_MSB = 0x0B,
EFFECTS1_MSB = 0x0C,
EFFECTS2_MSB = 0x0D,
GPC1_MSB = 0x10, /* general purpose controller */
GPC2_MSB = 0x11,
GPC3_MSB = 0x12,
GPC4_MSB = 0x13,
BANK_SELECT_LSB = 0x20,
MODULATION_WHEEL_LSB = 0x21,
BREATH_LSB = 0x22,
FOOT_LSB = 0x24,
PORTAMENTO_TIME_LSB = 0x25,
DATA_ENTRY_LSB = 0x26,
VOLUME_LSB = 0x27,
BALANCE_LSB = 0x28,
PAN_LSB = 0x2A,
EXPRESSION_LSB = 0x2B,
EFFECTS1_LSB = 0x2C,
EFFECTS2_LSB = 0x2D,
GPC1_LSB = 0x30,
GPC2_LSB = 0x31,
GPC3_LSB = 0x32,
GPC4_LSB = 0x33,
SUSTAIN_SWITCH = 0x40,
PORTAMENTO_SWITCH = 0x41,
SOSTENUTO_SWITCH = 0x42,
SOFT_PEDAL_SWITCH = 0x43,
LEGATO_SWITCH = 0x44,
HOLD2_SWITCH = 0x45,
SOUND_CTRL1 = 0x46,
SOUND_CTRL2 = 0x47,
SOUND_CTRL3 = 0x48,
SOUND_CTRL4 = 0x49,
SOUND_CTRL5 = 0x4A,
SOUND_CTRL6 = 0x4B,
SOUND_CTRL7 = 0x4C,
SOUND_CTRL8 = 0x4D,
SOUND_CTRL9 = 0x4E,
SOUND_CTRL10 = 0x4F,
GPC5 = 0x50,
GPC6 = 0x51,
GPC7 = 0x52,
GPC8 = 0x53,
PORTAMENTO_CTRL = 0x54,
EFFECTS_DEPTH1 = 0x5B,
EFFECTS_DEPTH2 = 0x5C,
EFFECTS_DEPTH3 = 0x5D,
EFFECTS_DEPTH4 = 0x5E,
EFFECTS_DEPTH5 = 0x5F,
DATA_ENTRY_INCR = 0x60,
DATA_ENTRY_DECR = 0x61,
NRPN_LSB = 0x62,
NRPN_MSB = 0x63,
RPN_LSB = 0x64,
RPN_MSB = 0x65,
ALL_SOUND_OFF = 0x78,
ALL_CTRL_OFF = 0x79,
LOCAL_CONTROL = 0x7A,
ALL_NOTES_OFF = 0x7B,
OMNI_OFF = 0x7C,
OMNI_ON = 0x7D,
POLY_OFF = 0x7E,
POLY_ON = 0x7F
};
/* General MIDI RPN event numbers (LSB, MSB = 0) */
enum midi_rpn_event
{
RPN_PITCH_BEND_RANGE = 0x00,
RPN_CHANNEL_FINE_TUNE = 0x01,
RPN_CHANNEL_COARSE_TUNE = 0x02,
RPN_TUNING_PROGRAM_CHANGE = 0x03,
RPN_TUNING_BANK_SELECT = 0x04,
RPN_MODULATION_DEPTH_RANGE = 0x05
};
enum midi_meta_event
{
MIDI_TEXT = 0x01,
MIDI_COPYRIGHT = 0x02,
MIDI_TRACK_NAME = 0x03,
MIDI_INST_NAME = 0x04,
MIDI_LYRIC = 0x05,
MIDI_MARKER = 0x06,
MIDI_CUE_POINT = 0x07,
MIDI_EOT = 0x2f,
MIDI_SET_TEMPO = 0x51,
MIDI_SMPTE_OFFSET = 0x54,
MIDI_TIME_SIGNATURE = 0x58,
MIDI_KEY_SIGNATURE = 0x59,
MIDI_SEQUENCER_EVENT = 0x7f
};
/* MIDI SYSEX useful manufacturer values */
enum midi_sysex_manuf
{
MIDI_SYSEX_MANUF_ROLAND = 0x41, /**< Roland manufacturer ID */
MIDI_SYSEX_UNIV_NON_REALTIME = 0x7E, /**< Universal non realtime message */
MIDI_SYSEX_UNIV_REALTIME = 0x7F /**< Universal realtime message */
};
#define MIDI_SYSEX_DEVICE_ID_ALL 0x7F /**< Device ID used in SYSEX messages to indicate all devices */
/* SYSEX sub-ID #1 which follows device ID */
#define MIDI_SYSEX_MIDI_TUNING_ID 0x08 /**< Sysex sub-ID #1 for MIDI tuning messages */
#define MIDI_SYSEX_GM_ID 0x09 /**< Sysex sub-ID #1 for General MIDI messages */
#define MIDI_SYSEX_GS_ID 0x42 /**< Model ID (GS) serving as sub-ID #1 for GS messages*/
/**
* SYSEX tuning message IDs.
*/
enum midi_sysex_tuning_msg_id
{
MIDI_SYSEX_TUNING_BULK_DUMP_REQ = 0x00, /**< Bulk tuning dump request (non-realtime) */
MIDI_SYSEX_TUNING_BULK_DUMP = 0x01, /**< Bulk tuning dump response (non-realtime) */
MIDI_SYSEX_TUNING_NOTE_TUNE = 0x02, /**< Tuning note change message (realtime) */
MIDI_SYSEX_TUNING_BULK_DUMP_REQ_BANK = 0x03, /**< Bulk tuning dump request (with bank, non-realtime) */
MIDI_SYSEX_TUNING_BULK_DUMP_BANK = 0x04, /**< Bulk tuning dump resonse (with bank, non-realtime) */
MIDI_SYSEX_TUNING_OCTAVE_DUMP_1BYTE = 0x05, /**< Octave tuning dump using 1 byte values (non-realtime) */
MIDI_SYSEX_TUNING_OCTAVE_DUMP_2BYTE = 0x06, /**< Octave tuning dump using 2 byte values (non-realtime) */
MIDI_SYSEX_TUNING_NOTE_TUNE_BANK = 0x07, /**< Tuning note change message (with bank, realtime/non-realtime) */
MIDI_SYSEX_TUNING_OCTAVE_TUNE_1BYTE = 0x08, /**< Octave tuning message using 1 byte values (realtime/non-realtime) */
MIDI_SYSEX_TUNING_OCTAVE_TUNE_2BYTE = 0x09 /**< Octave tuning message using 2 byte values (realtime/non-realtime) */
};
/* General MIDI sub-ID #2 */
#define MIDI_SYSEX_GM_ON 0x01 /**< Enable GM mode */
#define MIDI_SYSEX_GM_OFF 0x02 /**< Disable GM mode */
#define MIDI_SYSEX_GS_DT1 0x12 /**< GS DT1 command */
enum fluid_driver_status
{
FLUID_MIDI_READY,
FLUID_MIDI_LISTENING,
FLUID_MIDI_DONE
};
/***************************************************************
*
* TYPE DEFINITIONS & FUNCTION DECLARATIONS
*/
/*
* fluid_midi_event_t
*/
struct _fluid_midi_event_t
{
fluid_midi_event_t *next; /* Link to next event */
void *paramptr; /* Pointer parameter (for SYSEX data), size is stored to param1, param2 indicates if pointer should be freed (dynamic if TRUE) */
unsigned int dtime; /* Delay (ticks) between this and previous event. midi tracks. */
unsigned int param1; /* First parameter */
unsigned int param2; /* Second parameter */
unsigned char type; /* MIDI event type */
unsigned char channel; /* MIDI channel */
};
/*
* fluid_track_t
*/
struct _fluid_track_t
{
char *name;
int num;
fluid_midi_event_t *first;
fluid_midi_event_t *cur;
fluid_midi_event_t *last;
unsigned int ticks;
};
typedef struct _fluid_track_t fluid_track_t;
#define fluid_track_eot(track) ((track)->cur == NULL)
/*
* fluid_playlist_item
* Used as the `data' elements of the fluid_player.playlist.
* Represents either a filename or a pre-loaded memory buffer.
* Exactly one of `filename' and `buffer' is non-NULL.
*/
typedef struct
{
char *filename; /** Name of file (owned); NULL if data pre-loaded */
void *buffer; /** The MIDI file data (owned); NULL if filename */
size_t buffer_len; /** Number of bytes in buffer; 0 if filename */
} fluid_playlist_item;
/* range of tempo values */
#define MIN_TEMPO_VALUE (1.0f)
#define MAX_TEMPO_VALUE (60000000.0f)
/* range of tempo multiplier values */
#define MIN_TEMPO_MULTIPLIER (0.001f)
#define MAX_TEMPO_MULTIPLIER (1000.0f)
/*
* fluid_player
*/
struct _fluid_player_t
{
fluid_atomic_int_t status;
int ntracks;
fluid_track_t *track[MAX_NUMBER_OF_TRACKS];
fluid_synth_t *synth;
fluid_timer_t *system_timer;
fluid_sample_timer_t *sample_timer;
int loop; /* -1 = loop infinitely, otherwise times left to loop the playlist */
fluid_list_t *playlist; /* List of fluid_playlist_item* objects */
fluid_list_t *currentfile; /* points to an item in files, or NULL if not playing */
char use_system_timer; /* if zero, use sample timers, otherwise use system clock timer */
char reset_synth_between_songs; /* 1 if system reset should be sent to the synth between songs. */
fluid_atomic_int_t seek_ticks; /* new position in tempo ticks (midi ticks) for seeking */
int start_ticks; /* the number of tempo ticks passed at the last tempo change */
int cur_ticks; /* the number of tempo ticks passed */
int last_callback_ticks; /* the last tick number that was passed to player->tick_callback */
int begin_msec; /* the time (msec) of the beginning of the file */
int start_msec; /* the start time of the last tempo change */
int cur_msec; /* the current time */
/* sync mode: indicates the tempo mode the player is driven by (see fluid_player_set_tempo()):
1, the player is driven by internal tempo (miditempo). This is the default.
0, the player is driven by external tempo (exttempo)
*/
int sync_mode;
/* miditempo: internal tempo comming from MIDI file tempo change events
(in micro seconds per quarter note)
*/
int miditempo; /* as indicated by MIDI SetTempo: n 24th of a usec per midi-clock. bravo! */
/* exttempo: external tempo set by fluid_player_set_tempo() (in micro seconds per quarter note) */
int exttempo;
/* multempo: tempo multiplier set by fluid_player_set_tempo() */
float multempo;
float deltatime; /* milliseconds per midi tick. depends on current tempo mode (see sync_mode) */
unsigned int division;
handle_midi_event_func_t playback_callback; /* function fired on each midi event as it is played */
void *playback_userdata; /* pointer to user-defined data passed to playback_callback function */
handle_midi_tick_func_t tick_callback; /* function fired on each tick change */
void *tick_userdata; /* pointer to user-defined data passed to tick_callback function */
};
void fluid_player_settings(fluid_settings_t *settings);
/*
* fluid_midi_file
*/
typedef struct
{
const char *buffer; /* Entire contents of MIDI file (borrowed) */
int buf_len; /* Length of buffer, in bytes */
int buf_pos; /* Current read position in contents buffer */
int eof; /* The "end of file" condition */
int running_status;
int c;
int type;
int ntracks;
int uses_smpte;
unsigned int smpte_fps;
unsigned int smpte_res;
unsigned int division; /* If uses_SMPTE == 0 then division is
ticks per beat (quarter-note) */
double tempo; /* Beats per second (SI rules =) */
int tracklen;
int trackpos;
int eot;
int varlen;
int dtime;
} fluid_midi_file;
#define FLUID_MIDI_PARSER_MAX_DATA_SIZE 1024 /**< Maximum size of MIDI parameters/data (largest is SYSEX data) */
/*
* fluid_midi_parser_t
*/
struct _fluid_midi_parser_t
{
unsigned char status; /* Identifies the type of event, that is currently received ('Noteon', 'Pitch Bend' etc). */
unsigned char channel; /* The channel of the event that is received (in case of a channel event) */
unsigned int nr_bytes; /* How many bytes have been read for the current event? */
unsigned int nr_bytes_total; /* How many bytes does the current event type include? */
unsigned char data[FLUID_MIDI_PARSER_MAX_DATA_SIZE]; /* The parameters or SYSEX data */
fluid_midi_event_t event; /* The event, that is returned to the MIDI driver. */
};
#endif /* _FLUID_MIDI_H */
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