/*

TiMidity -- Experimental MIDI to WAVE converter

Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>

This program is free software; you can redistribute it and/or modify

it under the terms of the Perl Artistic License, available in COPYING.

*/

typedef struct {

int32 time;

uint8 channel, type, a, b;

} MidiEvent;

/* Midi events */

#define ME_NONE 0

#define ME_NOTEON 1

#define ME_NOTEOFF 2

#define ME_KEYPRESSURE 3

#define ME_MAINVOLUME 4

#define ME_PAN 5

#define ME_SUSTAIN 6

#define ME_EXPRESSION 7

#define ME_PITCHWHEEL 8

#define ME_PROGRAM 9

#define ME_TEMPO 10

#define ME_PITCH_SENS 11

#define ME_ALL_SOUNDS_OFF 12

#define ME_RESET_CONTROLLERS 13

#define ME_ALL_NOTES_OFF 14

#define ME_TONE_BANK 15

#define ME_LYRIC 16

#define ME_TONE_KIT 17

#define ME_MASTERVOLUME 18

#define ME_CHANNEL_PRESSURE 19

#define ME_HARMONICCONTENT 71

#define ME_RELEASETIME 72

#define ME_ATTACKTIME 73

#define ME_BRIGHTNESS 74

#define ME_REVERBERATION 91

#define ME_CHORUSDEPTH 93

#define ME_EOT 99

#define SFX_BANKTYPE 64

typedef struct {

int

bank, program, volume, sustain, panning, pitchbend, expression,

mono, /* one note only on this channel -- not implemented yet */

/* new stuff */

variationbank, reverberation, chorusdepth, harmoniccontent,

releasetime, attacktime, brightness, kit, sfx,

/* end new */

pitchsens;

FLOAT_T

pitchfactor; /* precomputed pitch bend factor to save some fdiv's */

char transpose;

char *name;

} Channel;

/* Causes the instrument's default panning to be used. */

#define NO_PANNING -1

/* envelope points */

#define MAXPOINT 7

typedef struct {

uint8

status, channel, note, velocity, clone_type;

Sample *sample;

Sample *left_sample;

Sample *right_sample;

int32 clone_voice;

int32

orig_frequency, frequency,

sample_offset, loop_start, loop_end;

int32

envelope_volume, modulation_volume;

int32

envelope_target, modulation_target;

int32

tremolo_sweep, tremolo_sweep_position, tremolo_phase,

lfo_sweep, lfo_sweep_position, lfo_phase,

vibrato_sweep, vibrato_sweep_position, vibrato_depth, vibrato_delay,

starttime, echo_delay_count;

int32

echo_delay,

sample_increment,

envelope_increment,

modulation_increment,

tremolo_phase_increment,

lfo_phase_increment;

final_volume_t left_mix, right_mix, lr_mix, rr_mix, ce_mix, lfe_mix;

FLOAT_T

left_amp, right_amp, lr_amp, rr_amp, ce_amp, lfe_amp,

volume, tremolo_volume, lfo_volume;

int32

vibrato_sample_increment[VIBRATO_SAMPLE_INCREMENTS];

int32

envelope_rate[MAXPOINT], envelope_offset[MAXPOINT];

int32

vibrato_phase, vibrato_control_ratio, vibrato_control_counter,

envelope_stage, modulation_stage, control_counter,

modulation_delay, modulation_counter, panning, panned;

} Voice;

/* Voice status options: */

#define VOICE_FREE 0

#define VOICE_ON 1

#define VOICE_SUSTAINED 2

#define VOICE_OFF 3

#define VOICE_DIE 4

/* Voice panned options: */

#define PANNED_MYSTERY 0

#define PANNED_LEFT 1

#define PANNED_RIGHT 2

#define PANNED_CENTER 3

/* Anything but PANNED_MYSTERY only uses the left volume */

/* Envelope stages: */

#define ATTACK 0

#define HOLD 1

#define DECAY 2

#define RELEASE 3

#define RELEASEB 4

#define RELEASEC 5

#define DELAY 6

extern Channel channel[16];

extern Voice voice[MAX_VOICES];

extern signed char drumvolume[MAXCHAN][MAXNOTE];

extern signed char drumpanpot[MAXCHAN][MAXNOTE];

extern signed char drumreverberation[MAXCHAN][MAXNOTE];

extern signed char drumchorusdepth[MAXCHAN][MAXNOTE];

extern int32 control_ratio, amp_with_poly, amplification;

extern int32 drumchannels;

extern int adjust_panning_immediately;

extern int voices;

#define ISDRUMCHANNEL(c) ((drumchannels & (1<<(c))))

extern int GM_System_On;

extern int XG_System_On;

extern int GS_System_On;

extern int XG_System_reverb_type;

extern int XG_System_chorus_type;

extern int XG_System_variation_type;

extern int play_midi(MidiEvent *el, int32 events, int32 samples);

extern int play_midi_file(const char *fn);

extern void dumb_pass_playing_list(int number_of_files, char *list_of_files[]);