ref: c151f95b68a8500612a49768cec1648c02562779
dir: /src/mixer/ft2_mix.h/
#ifndef _ft2_mix_h_
#define _ft2_mix_h_
#include <stdint.h>
enum
{
// don't change the order of these! (yes, it looks weird)
INTERPOLATION_DISABLED = 0,
INTERPOLATION_SINC8 = 1,
INTERPOLATION_LINEAR = 2,
INTERPOLATION_SINC16 = 3,
INTERPOLATION_CUBIC = 4,
INTERPOLATION_QUADRATIC = 5,
// ------
NUM_INTERPOLATORS,
};
#define MAX_TAPS 16
#define MAX_LEFT_TAPS ((MAX_TAPS/2)-1)
#define MAX_RIGHT_TAPS (MAX_TAPS/2)
// the fractional bits are hardcoded, changing these will break things!
#define MIXER_FRAC_BITS 32
#define MIXER_FRAC_SCALE ((int64_t)1 << MIXER_FRAC_BITS)
#define MIXER_FRAC_MASK (MIXER_FRAC_SCALE-1)
typedef void (*mixFunc)(void *, uint32_t, uint32_t);
extern const mixFunc mixFuncTab[]; // ft2_mix.c
#endif