playmidi.h
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上传日期:2022-07-21
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- /*
- 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_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[]);