shithub: ft2-clone

ref: f9a6d630fb4df6a523df9e08d18c6cb71f103d85
dir: /src/mixer/ft2_cubic.h/

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#pragma once

#include <stdbool.h>
#include "../ft2_audio.h" // MIXER_FRAC_BITS definition

// if you change this, also change CUBIC_PHASES_BITS
#define CUBIC_PHASES 4096
#define CUBIC_PHASES_BITS 12 /* log2(CUBIC_PHASES) */

// don't change these!

#define CUBIC_WIDTH 4
#define CUBIC_WIDTH_BITS 2
#define CUBIC_LUT_LEN (CUBIC_WIDTH * CUBIC_PHASES)
#define CUBIC_FSHIFT (MIXER_FRAC_BITS-(CUBIC_PHASES_BITS+CUBIC_WIDTH_BITS))
#define CUBIC_FMASK ((CUBIC_WIDTH*CUBIC_PHASES)-CUBIC_WIDTH)

extern float *fCubicLUT8;
extern float *fCubicLUT16;

bool calcCubicTable(void);
void freeCubicTable(void);