shithub: ft2-clone

ref: f9123a09ec984317770daf59ffc342409ba47c2d
dir: /src/mixer/ft2_intrp_table.h/

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#pragma once

#include <stdint.h>
#include "../ft2_audio.h"

#define CUBIC_WIDTH 4 /* number of taps */
#define CUBIC_WIDTH_BITS 2

#define CUBIC_PHASES 4096
#define CUBIC_PHASES_BITS 12

extern const uint32_t fCubicSplineTable[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)
#define CUBIC_QUANTSHIFT 15