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qzdoom/libraries/timidityplus/timiditypp/reverb.h

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/*
TiMidity++ -- MIDI to WAVE converter and player
Copyright (C) 1999-2002 Masanao Izumo <mo@goice.co.jp>
Copyright (C) 1995 Tuukka Toivonen <tt@cgs.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* REVERB EFFECT FOR TIMIDITY++-1.X (Version 0.06e 1999/1/28)
*
* Copyright (C) 1997,1998,1999 Masaki Kiryu <mkiryu@usa.net>
* (http://w3mb.kcom.ne.jp/~mkiryu/)
*
* reverb.h
*
*/
#ifndef ___REVERB_H_
#define ___REVERB_H_
#include <stdint.h>
namespace TimidityPlus
{
#define DEFAULT_REVERB_SEND_LEVEL 40
/* */
/* Effect Utitities */
/* */
/*! simple delay */
typedef struct {
int32_t *buf, size, index;
} simple_delay;
/*! Pink Noise Generator */
typedef struct {
float b0, b1, b2, b3, b4, b5, b6;
} pink_noise;
#ifndef SINE_CYCLE_LENGTH
#define SINE_CYCLE_LENGTH 1024
#endif
/*! LFO */
struct lfo {
int32_t buf[SINE_CYCLE_LENGTH];
int32_t count, cycle; /* in samples */
int32_t icycle; /* proportional to (SINE_CYCLE_LENGTH / cycle) */
int type; /* current content of its buffer */
double freq; /* in Hz */
};
enum {
LFO_NONE = 0,
LFO_SINE,
LFO_TRIANGULAR,
};
/*! modulated delay with allpass interpolation */
typedef struct {
int32_t *buf, size, rindex, windex, hist;
int32_t ndelay, depth; /* in samples */
} mod_delay;
/*! modulated allpass filter with allpass interpolation */
typedef struct {
int32_t *buf, size, rindex, windex, hist;
int32_t ndelay, depth; /* in samples */
double feedback;
int32_t feedbacki;
} mod_allpass;
/*! Moog VCF (resonant IIR state variable filter) */
typedef struct {
int16_t freq, last_freq; /* in Hz */
double res_dB, last_res_dB; /* in dB */
int32_t f, q, p; /* coefficients in fixed-point */
int32_t b0, b1, b2, b3, b4;
} filter_moog;
/*! Moog VCF (resonant IIR state variable filter with distortion) */
typedef struct {
int16_t freq, last_freq; /* in Hz */
double res_dB, last_res_dB; /* in dB */
double dist, last_dist, f, q, p, d, b0, b1, b2, b3, b4;
} filter_moog_dist;
/*! LPF18 (resonant IIR lowpass filter with waveshaping) */
typedef struct {
int16_t freq, last_freq; /* in Hz */
double dist, res, last_dist, last_res; /* in linear */
double ay1, ay2, aout, lastin, kres, value, kp, kp1h;
} filter_lpf18;
/*! 1st order lowpass filter */
typedef struct {
double a;
int32_t ai, iai; /* coefficients in fixed-point */
int32_t x1l, x1r;
} filter_lowpass1;
/*! lowpass / highpass filter */
typedef struct {
double freq, q, last_freq, last_q;
int32_t x1l, x2l, y1l, y2l, x1r, x2r, y1r, y2r;
int32_t a1, a2, b1, b02;
} filter_biquad;
#ifndef PART_EQ_XG
#define PART_EQ_XG
/*! shelving filter */
typedef struct {
double freq, gain, q;
int32_t x1l, x2l, y1l, y2l, x1r, x2r, y1r, y2r;
int32_t a1, a2, b0, b1, b2;
} filter_shelving;
struct part_eq_xg {
int8_t bass, treble, bass_freq, treble_freq;
filter_shelving basss, trebles;
int8_t valid;
};
#endif /* PART_EQ_XG */
/*! peaking filter */
typedef struct {
double freq, gain, q;
int32_t x1l, x2l, y1l, y2l, x1r, x2r, y1r, y2r;
int32_t ba1, a2, b0, b2;
} filter_peaking;
/*! allpass filter */
typedef struct _allpass {
int32_t *buf, size, index;
double feedback;
int32_t feedbacki;
} allpass;
/*! comb filter */
typedef struct _comb {
int32_t *buf, filterstore, size, index;
double feedback, damp1, damp2;
int32_t feedbacki, damp1i, damp2i;
} comb;
/* */
/* Insertion and Variation Effect */
/* */
struct effect_xg_t {
int8_t use_msb, type_msb, type_lsb, param_lsb[16], param_msb[10],
ret, pan, send_reverb, send_chorus, connection, part,
mw_depth, bend_depth, cat_depth, ac1_depth, ac2_depth, cbc1_depth,
cbc2_depth;
struct _EffectList *ef;
};
enum {
EFFECT_NONE,
EFFECT_EQ2,
EFFECT_EQ3,
EFFECT_STEREO_EQ,
EFFECT_OVERDRIVE1,
EFFECT_DISTORTION1,
EFFECT_OD1OD2,
EFFECT_CHORUS,
EFFECT_FLANGER,
EFFECT_SYMPHONIC,
EFFECT_CHORUS_EQ3,
EFFECT_STEREO_OVERDRIVE,
EFFECT_STEREO_DISTORTION,
EFFECT_STEREO_AMP_SIMULATOR,
EFFECT_OD_EQ3,
EFFECT_HEXA_CHORUS,
EFFECT_DELAY_LCR,
EFFECT_DELAY_LR,
EFFECT_ECHO,
EFFECT_CROSS_DELAY,
EFFECT_DELAY_EQ2,
EFFECT_LOFI,
EFFECT_LOFI1,
EFFECT_LOFI2,
EFFECT_XG_AUTO_WAH,
EFFECT_XG_AUTO_WAH_EQ2,
EFFECT_XG_AUTO_WAH_OD,
EFFECT_XG_AUTO_WAH_OD_EQ3,
};
#define MAGIC_INIT_EFFECT_INFO -1
#define MAGIC_FREE_EFFECT_INFO -2
class Reverb;
struct insertion_effect_gs_t {
int32_t type;
int8_t type_lsb, type_msb, parameter[20], send_reverb,
send_chorus, send_delay, control_source1, control_depth1,
control_source2, control_depth2, send_eq_switch;
struct _EffectList *ef;
};
enum {
XG_CONN_INSERTION = 0,
XG_CONN_SYSTEM = 1,
XG_CONN_SYSTEM_CHORUS,
XG_CONN_SYSTEM_REVERB,
};
#define XG_INSERTION_EFFECT_NUM 2
#define XG_VARIATION_EFFECT_NUM 1
typedef struct _EffectList {
int type;
void *info;
const struct _EffectEngine *engine;
struct _EffectList *next_ef;
} EffectList;
struct _EffectEngine {
int type;
const char *name;
void (Reverb::*do_effect)(int32_t *, int32_t, struct _EffectList *);
void (Reverb::*conv_gs)(struct insertion_effect_gs_t *, struct _EffectList *);
void (Reverb::*conv_xg)(struct effect_xg_t *, struct _EffectList *);
int info_size;
};
struct effect_parameter_gs_t {
int8_t type_msb, type_lsb;
const char *name;
int8_t param[20];
int8_t control1, control2;
};
struct effect_parameter_xg_t {
int8_t type_msb, type_lsb;
const char *name;
int8_t param_msb[10], param_lsb[16];
int8_t control;
};
/*! 2-Band EQ */
typedef struct {
int16_t low_freq, high_freq; /* in Hz */
int16_t low_gain, high_gain; /* in dB */
filter_shelving hsf, lsf;
} InfoEQ2;
/*! 3-Band EQ */
typedef struct {
int16_t low_freq, high_freq, mid_freq; /* in Hz */
int16_t low_gain, high_gain, mid_gain; /* in dB */
double mid_width;
filter_shelving hsf, lsf;
filter_peaking peak;
} InfoEQ3;
/*! Stereo EQ */
typedef struct {
int16_t low_freq, high_freq, m1_freq, m2_freq; /* in Hz */
int16_t low_gain, high_gain, m1_gain, m2_gain; /* in dB */
double m1_q, m2_q, level;
int32_t leveli;
filter_shelving hsf, lsf;
filter_peaking m1, m2;
} InfoStereoEQ;
/*! Overdrive 1 / Distortion 1 */
typedef struct {
double level;
int32_t leveli, di; /* in fixed-point */
int8_t drive, pan, amp_sw, amp_type;
filter_moog svf;
filter_biquad lpf1;
void (Reverb::*amp_sim)(int32_t *, int32_t);
} InfoOverdrive1;
/*! OD1 / OD2 */
typedef struct {
double level, levell, levelr;
int32_t levelli, levelri, dli, dri; /* in fixed-point */
int8_t drivel, driver, panl, panr, typel, typer, amp_swl, amp_swr, amp_typel, amp_typer;
filter_moog svfl, svfr;
filter_biquad lpf1;
void (Reverb::*amp_siml)(int32_t *, int32_t), (Reverb::*amp_simr)(int32_t *, int32_t);
void (Reverb::*odl)(int32_t *, int32_t), (Reverb::*odr)(int32_t *, int32_t);
} InfoOD1OD2;
/*! HEXA-CHORUS */
typedef struct {
simple_delay buf0;
lfo lfo0;
double dry, wet, level;
int32_t pdelay, depth; /* in samples */
int8_t pdelay_dev, depth_dev, pan_dev;
int32_t dryi, weti; /* in fixed-point */
int32_t pan0, pan1, pan2, pan3, pan4, pan5;
int32_t depth0, depth1, depth2, depth3, depth4, depth5,
pdelay0, pdelay1, pdelay2, pdelay3, pdelay4, pdelay5;
int32_t spt0, spt1, spt2, spt3, spt4, spt5,
hist0, hist1, hist2, hist3, hist4, hist5;
} InfoHexaChorus;
/*! Plate Reverb */
typedef struct {
simple_delay pd, od1l, od2l, od3l, od4l, od5l, od6l, od7l,
od1r, od2r, od3r, od4r, od5r, od6r, od7r,
td1, td2, td1d, td2d;
lfo lfo1, lfo1d;
allpass ap1, ap2, ap3, ap4, ap6, ap6d;
mod_allpass ap5, ap5d;
filter_lowpass1 lpf1, lpf2;
int32_t t1, t1d;
double decay, ddif1, ddif2, idif1, idif2, dry, wet;
int32_t decayi, ddif1i, ddif2i, idif1i, idif2i, dryi, weti;
} InfoPlateReverb;
/*! Standard Reverb */
typedef struct {
int32_t spt0, spt1, spt2, spt3, rpt0, rpt1, rpt2, rpt3;
int32_t ta, tb, HPFL, HPFR, LPFL, LPFR, EPFL, EPFR;
simple_delay buf0_L, buf0_R, buf1_L, buf1_R, buf2_L, buf2_R, buf3_L, buf3_R;
double fbklev, nmixlev, cmixlev, monolev, hpflev, lpflev, lpfinp, epflev, epfinp, width, wet;
int32_t fbklevi, nmixlevi, cmixlevi, monolevi, hpflevi, lpflevi, lpfinpi, epflevi, epfinpi, widthi, weti;
} InfoStandardReverb;
/*! Freeverb */
#define numcombs 8
#define numallpasses 4
typedef struct {
simple_delay pdelay;
double roomsize, roomsize1, damp, damp1, wet, wet1, wet2, width;
comb combL[numcombs], combR[numcombs];
allpass allpassL[numallpasses], allpassR[numallpasses];
int32_t wet1i, wet2i;
int8_t alloc_flag;
} InfoFreeverb;
/*! 3-Tap Stereo Delay Effect */
typedef struct {
simple_delay delayL, delayR;
int32_t size[3], index[3];
double level[3], feedback, send_reverb;
int32_t leveli[3], feedbacki, send_reverbi;
} InfoDelay3;
/*! Stereo Chorus Effect */
typedef struct {
simple_delay delayL, delayR;
lfo lfoL, lfoR;
int32_t wpt0, spt0, spt1, hist0, hist1;
int32_t rpt0, depth, pdelay;
double level, feedback, send_reverb, send_delay;
int32_t leveli, feedbacki, send_reverbi, send_delayi;
} InfoStereoChorus;
/*! Chorus */
typedef struct {
simple_delay delayL, delayR;
lfo lfoL, lfoR;
int32_t wpt0, spt0, spt1, hist0, hist1;
int32_t rpt0, depth, pdelay;
double dry, wet, feedback, pdelay_ms, depth_ms, rate, phase_diff;
int32_t dryi, weti, feedbacki;
} InfoChorus;
/*! Stereo Overdrive / Distortion */
typedef struct {
double level, dry, wet, drive, cutoff;
int32_t dryi, weti, di;
filter_moog svfl, svfr;
filter_biquad lpf1;
void (Reverb::*od)(int32_t *, int32_t);
} InfoStereoOD;
/*! Delay L,C,R */
typedef struct {
simple_delay delayL, delayR;
int32_t index[3], size[3]; /* L,C,R */
double rdelay, ldelay, cdelay, fdelay; /* in ms */
double dry, wet, feedback, clevel, high_damp;
int32_t dryi, weti, feedbacki, cleveli;
filter_lowpass1 lpf;
} InfoDelayLCR;
/*! Delay L,R */
typedef struct {
simple_delay delayL, delayR;
int32_t index[2], size[2]; /* L,R */
double rdelay, ldelay, fdelay1, fdelay2; /* in ms */
double dry, wet, feedback, high_damp;
int32_t dryi, weti, feedbacki;
filter_lowpass1 lpf;
} InfoDelayLR;
/*! Echo */
typedef struct {
simple_delay delayL, delayR;
int32_t index[2], size[2]; /* L1,R1 */
double rdelay1, ldelay1, rdelay2, ldelay2; /* in ms */
double dry, wet, lfeedback, rfeedback, high_damp, level;
int32_t dryi, weti, lfeedbacki, rfeedbacki, leveli;
filter_lowpass1 lpf;
} InfoEcho;
/*! Cross Delay */
typedef struct {
simple_delay delayL, delayR;
double lrdelay, rldelay; /* in ms */
double dry, wet, feedback, high_damp;
int32_t dryi, weti, feedbacki, input_select;
filter_lowpass1 lpf;
} InfoCrossDelay;
/*! Lo-Fi 1 */
typedef struct {
int8_t lofi_type, pan, pre_filter, post_filter;
double level, dry, wet;
int32_t bit_mask, level_shift, dryi, weti;
filter_biquad pre_fil, post_fil;
} InfoLoFi1;
/*! Lo-Fi 2 */
typedef struct {
int8_t wp_sel, disc_type, hum_type, ms, pan, rdetune, lofi_type, fil_type;
double wp_level, rnz_lev, discnz_lev, hum_level, dry, wet, level;
int32_t bit_mask, level_shift, wp_leveli, rnz_levi, discnz_levi, hum_keveki, dryi, weti;
filter_biquad fil, wp_lpf, hum_lpf, disc_lpf;
} InfoLoFi2;
/*! LO-FI */
typedef struct {
int8_t output_gain, word_length, filter_type, bit_assign, emphasis;
double dry, wet;
int32_t bit_mask, level_shift, dryi, weti;
filter_biquad lpf, srf;
} InfoLoFi;
/*! XG: Auto Wah */
typedef struct {
int8_t lfo_depth, drive;
double resonance, lfo_freq, offset_freq, dry, wet;
int32_t dryi, weti, fil_count, fil_cycle;
struct lfo lfo;
filter_moog_dist fil0, fil1;
} InfoXGAutoWah;
typedef struct {
double level;
int32_t leveli;
filter_biquad lpf;
} InfoXGAutoWahOD;
/* GS parameters of reverb effect */
struct reverb_status_gs_t
{
/* GS parameters */
int8_t character, pre_lpf, level, time, delay_feedback, pre_delay_time;
InfoStandardReverb info_standard_reverb;
InfoPlateReverb info_plate_reverb;
InfoFreeverb info_freeverb;
InfoDelay3 info_reverb_delay;
filter_lowpass1 lpf;
};
struct chorus_text_gs_t
{
int status;
uint8_t voice_reserve[18], macro[3], pre_lpf[3], level[3], feed_back[3],
delay[3], rate[3], depth[3], send_level[3];
};
/* GS parameters of chorus effect */
struct chorus_status_gs_t
{
/* GS parameters */
int8_t macro, pre_lpf, level, feedback, delay, rate, depth, send_reverb, send_delay;
//struct chorus_text_gs_t text;
InfoStereoChorus info_stereo_chorus;
filter_lowpass1 lpf;
};
/* GS parameters of delay effect */
struct delay_status_gs_t
{
/* GS parameters */
int8_t type, level, level_center, level_left, level_right,
feedback, pre_lpf, send_reverb, time_c, time_l, time_r;
double time_center; /* in ms */
double time_ratio_left, time_ratio_right; /* in pct */
/* for pre-calculation */
int32_t sample[3]; /* center, left, right */
double level_ratio[3]; /* center, left, right */
double feedback_ratio, send_reverb_ratio;
filter_lowpass1 lpf;
InfoDelay3 info_delay;
};
/* GS parameters of channel EQ */
struct eq_status_gs_t
{
/* GS parameters */
int8_t low_freq, high_freq, low_gain, high_gain;
filter_shelving hsf, lsf;
};
/* XG parameters of Multi EQ */
struct multi_eq_xg_t
{
/* XG parameters */
int8_t type, gain1, gain2, gain3, gain4, gain5,
freq1, freq2, freq3, freq4, freq5,
q1, q2, q3, q4, q5, shape1, shape5;
int8_t valid, valid1, valid2, valid3, valid4, valid5;
filter_shelving eq1s, eq5s;
filter_peaking eq1p, eq2p, eq3p, eq4p, eq5p;
};
class Reverb
{
double REV_INP_LEV;
int32_t direct_buffer[AUDIO_BUFFER_SIZE * 2];
int32_t direct_bufsize;
int32_t reverb_effect_buffer[AUDIO_BUFFER_SIZE * 2];
int32_t reverb_effect_bufsize;
int32_t delay_effect_buffer[AUDIO_BUFFER_SIZE * 2];
int32_t chorus_effect_buffer[AUDIO_BUFFER_SIZE * 2];
int32_t eq_buffer[AUDIO_BUFFER_SIZE * 2];
static const struct _EffectEngine effect_engine[];
void free_delay(simple_delay *delay);
void set_delay(simple_delay *delay, int32_t size);
void do_delay(int32_t *stream, int32_t *buf, int32_t size, int32_t *index);
void init_lfo(lfo *lfo, double freq, int type, double phase);
int32_t do_lfo(lfo *lfo);
void do_mod_delay(int32_t *stream, int32_t *buf, int32_t size, int32_t *rindex, int32_t *windex, int32_t ndelay, int32_t depth, int32_t lfoval, int32_t *hist);
void free_mod_allpass(mod_allpass *delay);
void set_mod_allpass(mod_allpass *delay, int32_t ndelay, int32_t depth, double feedback);
void do_mod_allpass(int32_t *stream, int32_t *buf, int32_t size, int32_t *rindex, int32_t *windex, int32_t ndelay, int32_t depth, int32_t lfoval, int32_t *hist, int32_t feedback);
void free_allpass(allpass *allpass);
void set_allpass(allpass *allpass, int32_t size, double feedback);
void do_allpass(int32_t *stream, int32_t *buf, int32_t size, int32_t *index, int32_t feedback);
void init_filter_moog(filter_moog *svf);
void calc_filter_moog(filter_moog *svf);
void do_filter_moog(int32_t *stream, int32_t *high, int32_t f, int32_t p, int32_t q, int32_t *b0, int32_t *b1, int32_t *b2, int32_t *b3, int32_t *b4);
void init_filter_moog_dist(filter_moog_dist *svf);
void calc_filter_moog_dist(filter_moog_dist *svf);
void do_filter_moog_dist(double *stream, double *high, double *band, double f, double p, double q, double d, double *b0, double *b1, double *b2, double *b3, double *b4);
void do_filter_moog_dist_band(double *stream, double f, double p, double q, double d, double *b0, double *b1, double *b2, double *b3, double *b4);
void init_filter_lpf18(filter_lpf18 *p);
void calc_filter_lpf18(filter_lpf18 *p);
void do_filter_lpf18(double *stream, double *ay1, double *ay2, double *aout, double *lastin, double kres, double value, double kp, double kp1h);
void do_dummy_clipping(int32_t *stream, int32_t d) {}
void do_hard_clipping(int32_t *stream, int32_t d);
void do_soft_clipping1(int32_t *stream, int32_t d);
void do_soft_clipping2(int32_t *stream, int32_t d);
void do_filter_lowpass1(int32_t *stream, int32_t *x1, int32_t a, int32_t ia);
void do_filter_lowpass1_stereo(int32_t *buf, int32_t count, filter_lowpass1 *p);
void init_filter_biquad(filter_biquad *p);
void calc_filter_biquad_low(filter_biquad *p);
void calc_filter_biquad_high(filter_biquad *p);
void do_filter_biquad(int32_t *stream, int32_t a1, int32_t a2, int32_t b1, int32_t b02, int32_t *x1, int32_t *x2, int32_t *y1, int32_t *y2);
void init_filter_shelving(filter_shelving *p);
void do_shelving_filter_stereo(int32_t* buf, int32_t count, filter_shelving *p);
void do_peaking_filter_stereo(int32_t* buf, int32_t count, filter_peaking *p);
double gs_revchar_to_roomsize(int character);
double gs_revchar_to_level(int character);
double gs_revchar_to_rt(int character);
void init_filter_peaking(filter_peaking *p);
void init_standard_reverb(InfoStandardReverb *info);
void free_standard_reverb(InfoStandardReverb *info);
void do_ch_standard_reverb(int32_t *buf, int32_t count, InfoStandardReverb *info);
void do_ch_standard_reverb_mono(int32_t *buf, int32_t count, InfoStandardReverb *info);
void set_freeverb_allpass(allpass *allpass, int32_t size);
void init_freeverb_allpass(allpass *allpass);
void set_freeverb_comb(comb *comb, int32_t size);
void init_freeverb_comb(comb *comb);
void realloc_freeverb_buf(InfoFreeverb *rev);
void update_freeverb(InfoFreeverb *rev);
void init_freeverb(InfoFreeverb *rev);
void alloc_freeverb_buf(InfoFreeverb *rev);
void free_freeverb_buf(InfoFreeverb *rev);
void do_freeverb_allpass(int32_t *stream, int32_t *buf, int32_t size, int32_t *index, int32_t feedback);
void do_freeverb_comb(int32_t input, int32_t *stream, int32_t *buf, int32_t size, int32_t *index, int32_t damp1, int32_t damp2, int32_t *fs, int32_t feedback);
void do_ch_freeverb(int32_t *buf, int32_t count, InfoFreeverb *rev);
void init_ch_reverb_delay(InfoDelay3 *info);
void free_ch_reverb_delay(InfoDelay3 *info);
void do_ch_reverb_panning_delay(int32_t *buf, int32_t count, InfoDelay3 *info);
void do_ch_reverb_normal_delay(int32_t *buf, int32_t count, InfoDelay3 *info);
int32_t get_plate_delay(double delay, double t);
void do_ch_plate_reverb(int32_t *buf, int32_t count, InfoPlateReverb *info);
void init_ch_3tap_delay(InfoDelay3 *info);
void free_ch_3tap_delay(InfoDelay3 *info);
void do_ch_3tap_delay(int32_t *buf, int32_t count, InfoDelay3 *info);
void do_ch_cross_delay(int32_t *buf, int32_t count, InfoDelay3 *info);
void do_ch_normal_delay(int32_t *buf, int32_t count, InfoDelay3 *info);
void do_ch_stereo_chorus(int32_t *buf, int32_t count, InfoStereoChorus *info);
void alloc_effect(EffectList *ef);
void do_eq2(int32_t *buf, int32_t count, EffectList *ef);
int32_t do_left_panning(int32_t sample, int32_t pan);
int32_t do_right_panning(int32_t sample, int32_t pan);
double calc_gs_drive(int val);
void do_overdrive1(int32_t *buf, int32_t count, EffectList *ef);
void do_distortion1(int32_t *buf, int32_t count, EffectList *ef);
void do_dual_od(int32_t *buf, int32_t count, EffectList *ef);
void do_hexa_chorus(int32_t *buf, int32_t count, EffectList *ef);
void free_effect_xg(struct effect_xg_t *st);
int clip_int(int val, int min, int max);
void conv_gs_eq2(struct insertion_effect_gs_t *ieffect, EffectList *ef);
void conv_gs_overdrive1(struct insertion_effect_gs_t *ieffect, EffectList *ef);
void conv_gs_dual_od(struct insertion_effect_gs_t *ieffect, EffectList *ef);
double calc_dry_gs(int val);
double calc_wet_gs(int val);
void conv_gs_hexa_chorus(struct insertion_effect_gs_t *ieffect, EffectList *ef);
double calc_dry_xg(int val, struct effect_xg_t *st);
double calc_wet_xg(int val, struct effect_xg_t *st);
void do_eq3(int32_t *buf, int32_t count, EffectList *ef);
void do_stereo_eq(int32_t *buf, int32_t count, EffectList *ef);
void conv_xg_eq2(struct effect_xg_t *st, EffectList *ef);
void conv_xg_eq3(struct effect_xg_t *st, EffectList *ef);
void conv_gs_stereo_eq(struct insertion_effect_gs_t *st, EffectList *ef);
void conv_xg_chorus_eq3(struct effect_xg_t *st, EffectList *ef);
void conv_xg_chorus(struct effect_xg_t *st, EffectList *ef);
void conv_xg_flanger(struct effect_xg_t *st, EffectList *ef);
void conv_xg_symphonic(struct effect_xg_t *st, EffectList *ef);
void do_chorus(int32_t *buf, int32_t count, EffectList *ef);
void conv_xg_od_eq3(struct effect_xg_t *st, EffectList *ef);
void conv_xg_overdrive(struct effect_xg_t *st, EffectList *ef);
void conv_xg_distortion(struct effect_xg_t *st, EffectList *ef);
void conv_xg_amp_simulator(struct effect_xg_t *st, EffectList *ef);
void do_stereo_od(int32_t *buf, int32_t count, EffectList *ef);
void do_delay_lcr(int32_t *buf, int32_t count, EffectList *ef);
void conv_xg_delay_eq2(struct effect_xg_t *st, EffectList *ef);
void conv_xg_delay_lcr(struct effect_xg_t *st, EffectList *ef);
void conv_xg_delay_lr(struct effect_xg_t *st, EffectList *ef);
void do_delay_lr(int32_t *buf, int32_t count, EffectList *ef);
void conv_xg_echo(struct effect_xg_t *st, EffectList *ef);
void do_echo(int32_t *buf, int32_t count, EffectList *ef);
void conv_xg_cross_delay(struct effect_xg_t *st, EffectList *ef);
void do_cross_delay(int32_t *buf, int32_t count, EffectList *ef);
void conv_gs_lofi1(struct insertion_effect_gs_t *st, EffectList *ef);
inline int32_t apply_lofi(int32_t input, int32_t bit_mask, int32_t level_shift);
void do_lofi1(int32_t *buf, int32_t count, EffectList *ef);
void conv_gs_lofi2(struct insertion_effect_gs_t *st, EffectList *ef);
void do_lofi2(int32_t *buf, int32_t count, EffectList *ef);
void conv_xg_lofi(struct effect_xg_t *st, EffectList *ef);
void do_lofi(int32_t *buf, int32_t count, EffectList *ef);
void conv_xg_auto_wah_od(struct effect_xg_t *st, EffectList *ef);
void conv_xg_auto_wah_od_eq3(struct effect_xg_t *st, EffectList *ef);
void conv_xg_auto_wah_eq2(struct effect_xg_t *st, EffectList *ef);
void conv_xg_auto_wah(struct effect_xg_t *st, EffectList *ef);
double calc_xg_auto_wah_freq(int32_t lfo_val, double offset_freq, int8_t depth);
void do_xg_auto_wah(int32_t *buf, int32_t count, EffectList *ef);
void do_xg_auto_wah_od(int32_t *buf, int32_t count, EffectList *ef);
public:
Reverb()
{
// Make sure that this starts out with all zeros.
memset(this, 0, sizeof(*this));
REV_INP_LEV = 1.0;
direct_bufsize = sizeof(direct_buffer);
reverb_effect_bufsize = sizeof(reverb_effect_buffer);
}
~Reverb()
{
free_effect_buffers();
}
void set_dry_signal(int32_t *, int32_t);
void set_dry_signal_xg(int32_t *, int32_t, int32_t);
void mix_dry_signal(int32_t *, int32_t);
void free_effect_buffers(void);
void init_pink_noise(pink_noise *);
float get_pink_noise(pink_noise *);
float get_pink_noise_light(pink_noise *);
void calc_filter_shelving_high(filter_shelving *);
void calc_filter_shelving_low(filter_shelving *);
void calc_filter_peaking(filter_peaking *);
void do_insertion_effect_gs(int32_t*, int32_t);
void do_insertion_effect_xg(int32_t*, int32_t, struct effect_xg_t *);
void do_variation_effect1_xg(int32_t*, int32_t);
void init_ch_effect_xg(void);
EffectList *push_effect(EffectList *, int);
void do_effect_list(int32_t *, int32_t, EffectList *);
void free_effect_list(EffectList *);
void init_filter_lowpass1(filter_lowpass1 *p);
/* */
/* System Effect */
/* */
/* Reverb Effect */
void do_ch_reverb(int32_t *, int32_t);
void set_ch_reverb(int32_t *, int32_t, int32_t);
void init_reverb(void);
void do_ch_reverb_xg(int32_t *, int32_t);
/* Chorus Effect */
void do_ch_chorus(int32_t *, int32_t);
void set_ch_chorus(int32_t *, int32_t, int32_t);
void init_ch_chorus(void);
void do_ch_chorus_xg(int32_t *, int32_t);
/* Delay (Celeste) Effect */
void do_ch_delay(int32_t *, int32_t);
void set_ch_delay(int32_t *, int32_t, int32_t);
void init_ch_delay(void);
/* EQ */
void init_eq_gs(void);
void set_ch_eq_gs(int32_t *, int32_t);
void do_ch_eq_gs(int32_t *, int32_t);
void do_ch_eq_xg(int32_t *, int32_t, struct part_eq_xg *);
void do_multi_eq_xg(int32_t *, int32_t);
// These get accessed directly by the player.
struct multi_eq_xg_t multi_eq_xg;
pink_noise global_pink_noise_light;
struct insertion_effect_gs_t insertion_effect_gs;
struct effect_xg_t insertion_effect_xg[XG_INSERTION_EFFECT_NUM],
variation_effect_xg[XG_VARIATION_EFFECT_NUM], reverb_status_xg, chorus_status_xg;
static const struct effect_parameter_gs_t effect_parameter_gs[];
static const struct effect_parameter_xg_t effect_parameter_xg[];
void init_for_effect()
{
init_pink_noise(&global_pink_noise_light);
init_reverb();
init_ch_delay();
init_ch_chorus();
init_eq_gs();
}
struct reverb_status_gs_t reverb_status_gs;
//struct chorus_text_gs_t chorus_text_gs;
struct chorus_status_gs_t chorus_status_gs;
struct delay_status_gs_t delay_status_gs;
struct eq_status_gs_t eq_status_gs;
////////////////////////////////// from readmidi
void init_delay_status_gs(void);
void recompute_delay_status_gs(void);
void set_delay_macro_gs(int macro);
void init_reverb_status_gs(void);
void recompute_reverb_status_gs(void);
void set_reverb_macro_gm2(int macro);
void set_reverb_macro_gs(int macro);
void init_chorus_status_gs(void);
void recompute_chorus_status_gs();
void set_chorus_macro_gs(int macro);
void init_eq_status_gs(void);
void recompute_eq_status_gs(void);
void init_multi_eq_xg(void);
void set_multi_eq_type_xg(int type);
void recompute_multi_eq_xg(void);
void set_effect_param_xg(struct effect_xg_t *st, int type_msb, int type_lsb);
void recompute_effect_xg(struct effect_xg_t *st);
void realloc_effect_xg(struct effect_xg_t *st);
void init_effect_xg(struct effect_xg_t *st);
void init_all_effect_xg(void);
void init_insertion_effect_gs(void);
void set_effect_param_gs(struct insertion_effect_gs_t *st, int msb, int lsb);
void recompute_insertion_effect_gs(void);
void realloc_insertion_effect_gs(void);
void init_effect_status(int play_system_mode);
};
}
#endif /* ___REVERB_H_ */
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