/*
 * Filename:    svf.c
 *
 * Description:
 *
 *
 * Version:     
 * Created:     Wed Oct 30 00:00:40 2019
 * Revision:    None
 * Author:      Rachel Fae Fox (foxiepaws),fox@foxiepa.ws
 *
 */
#ifndef _H_FILTERS_SVF
#define _H_FILTERS_SVF
#include <math.h>
#include <stdlib.h>

#define MIN(X, Y) (((X) < (Y)) ? (X) : (Y))

typedef enum DBO { _6dbo, _12dbo, _18dbo, _24dbo, _36dbo = 6, _48dbo } DBO;

typedef struct SVF {
    float notch;
    float low;
    float high;
    float band;
    float drive;
    float freq;
    float q;
    DBO dbo;
    float out;
    float(*damp)(struct SVF*);
    float(*process)(struct SVF*,float in);
    void(*reset)(struct SVF*);
} SVF;


float svf_damp(SVF *self);
float svf_process(SVF *self,float in);
void svf_reset(SVF* self);
SVF* svf_new(float freq,float q,float drive);
#endif