//
// Created by versustune on 08.06.20.
//

#ifndef VENO_TABLEHELPER_H
#define VENO_TABLEHELPER_H

#include <cmath>
#include <cstdlib>
#include "WaveTableGenerator.h"

#define M_PI        3.14159265358979323846
#define DOUBLE_PI   6.283185307179586476925286766559

/*
 in-place complex fft
 After Cooley, Lewis, and Welch; from Rabiner & Gold (1975)
 program adapted from FORTRAN
 by K. Steiglitz  (ken@princeton.edu)
 Computer Science Dept.
 Princeton University 08544
*/
void fft(int N, double *ar, double *ai);

float makeWaveTable(WaveTableGroup *group, int len, double *ar, double *ai, double scale, double topFreq);

// utils stuff
int fillTables(WaveTableGroup *group, double *freqWaveRe, double *freqWaveIm, int numSamples);

int findTableLen();

float getNextRand();

#endif //VENO_TABLEHELPER_H