shithub: ft²

ref: cf174b4c8c75858b067f2072ffac8336c6ede9c1
dir: /src/mixer/ft2_quadratic_spline.h/

View raw version 
#pragma once

#include <stdint.h>
#include <stdbool.h>
#include "ft2_mix.h" // MIXER_FRAC_BITS

#define QUADRATIC_SPLINE_WIDTH 3
#define QUADRATIC_SPLINE_PHASES 4096
#define QUADRATIC_SPLINE_PHASES_BITS 12 /* log2(QUADRATIC_SPLINE_PHASES) */
#define QUADRATIC_SPLINE_FRACSHIFT (MIXER_FRAC_BITS-QUADRATIC_SPLINE_PHASES_BITS)

extern float *fQuadraticSplineLUT;

bool setupQuadraticSplineTable(void);
void freeQuadraticSplineTable(void);