mirror of
https://github.com/id-Software/DOOM-3-BFG.git
synced 2024-11-25 05:21:39 +00:00
114 lines
3 KiB
C
114 lines
3 KiB
C
|
/*
|
||
|
|
|
||
|
|
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
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "structs.h"
|
||
|
|
|
||
|
|
/* 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_t
|
||
|
|
status, channel, note, velocity;
|
||
|
|
Sample *sample;
|
||
|
|
int32_t
|
||
|
|
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_t
|
||
|
|
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_t control_ratio, amp_with_poly, amplification;
|
||
|
|
extern int32_t drumchannels;
|
||
|
|
extern int adjust_panning_immediately;
|
||
|
|
extern int voices;
|
||
|
|
|
||
|
|
#define ISDRUMCHANNEL(c) ((drumchannels & (1<<(c))))
|
||
|
|
|
||
|
|
extern int play_midi(MidiEvent *el, int32_t events, int32_t samples);
|
||
|
|
extern int play_midi_file(char *fn);
|
||
|
|
extern void dumb_pass_playing_list(int number_of_files, char *list_of_files[]);
|