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/*
Copyright (C) 2003-2008 Fons Adriaensen <fons@kokkinizita.net>
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.
*/
#ifndef __ASECTION_H
#define __ASECTION_H
#include "global.h"
#define PERIOD 64
#define MIXLEN 64
#define NCHANN 4
#define NRANKS 32
class Diffuser
{
public:
void init (int size, float c);
void fini (void);
int size (void) { return _size; }
float process (float x)
{
float w;
w = x - _c * _data [_i];
x = _data [_i] + _c * w;
_data [_i] = w;
if (++_i == _size) _i = 0;
return x;
}
private:
float *_data;
int _size;
int _i;
float _c;
};
class Asection
{
public:
Asection (float fsam);
~Asection (void);
float *get_wptr (void) { return _base + _offs0; }
Fparm *get_apar (void) { return _apar; }
void set_size (float size);
void process (float vol, float *W, float *X, float *Y, float *R);
static float _refl [16];
private:
enum { AZIMUTH, STWIDTH, DIRECT, REFLECT, REVERB };
int _offs0;
int _offs [16];
float _fsam;
float *_base;
float _sw;
float _sx;
float _sy;
Diffuser _dif0;
Diffuser _dif1;
Diffuser _dif2;
Diffuser _dif3;
Fparm _apar [5];
};
#endif
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