#ifndef DELAYLINE_H
#define DELAYLINE_H

#include "includeBS.h"

#define DELAY_LINE_SIZE 64 				//must be a power of 2 as this speeds up cycling through list

typedef struct  {
	int16_t elements[DELAY_LINE_SIZE];	//delay line contents
	uint8_t newestElement;				//index of the newest element
}delayLine;

void delayLine_init(delayLine *dl);
void delayLine_addElement(delayLine *dl, int16_t x);

int16_t delayLine_runningAverage8(delayLine *dl, int32_t *accumulator, int16_t x);
int16_t delayLine_runningAverage16(delayLine *dl, int32_t *accumulator, int16_t x);
int16_t delayLine_runningAverage32(delayLine *dl, int32_t *accumulator, int16_t x);
int16_t delayLine_runningAverage64(delayLine *dl, int32_t *accumulator, int16_t x);

#endif