/*

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 GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

playmidi.h

*/

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_EOT 99

typedef struct {

int

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

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

pitchsens;

/* chorus, reverb... Coming soon to a 300-MHz, eight-way superscalar

processor near you */

float

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

} Channel;

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

#define NO_PANNING -1

typedef struct {

uint8

status, channel, note, velocity;

Sample *sample;

int32

orig_frequency, frequency,

sample_offset, sample_increment,

envelope_volume, envelope_target, envelope_increment,

tremolo_sweep, tremolo_sweep_position,

tremolo_phase, tremolo_phase_increment,

vibrato_sweep, vibrato_sweep_position;

final_volume_t left_mix, right_mix;

float

left_amp, right_amp, tremolo_volume;

int32

vibrato_sample_increment[VIBRATO_SAMPLE_INCREMENTS];

int

vibrato_phase, vibrato_control_ratio, vibrato_control_counter,

envelope_stage, control_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 */

extern Channel channel[16];

extern Voice voice[MAX_VOICES];

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

extern int play_midi_file(char *fn);

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