ref: 4f70bc64d136ec816e6a8476429fb1c69be1ffa7
dir: /LEAF/Inc/leaf-delay.h/
/*==============================================================================
leaf-delay.h
Created: 20 Jan 2017 12:01:24pm
Author: Michael R Mulshine
==============================================================================*/
#ifndef LEAF_DELAY_H_INCLUDED
#define LEAF_DELAY_H_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif
//==============================================================================
#include "leaf-math.h"
//==============================================================================
/* Non-interpolating delay, reimplemented from STK (Cook and Scavone). */
typedef struct _tDelay
{
float gain;
float* buff;
float lastOut, lastIn;
uint32_t inPoint, outPoint;
uint32_t delay, maxDelay;
} tDelay;
void tDelay_init (tDelay* const, uint32_t delay, uint32_t maxDelay);
void tDelay_free (tDelay* const);
int tDelay_setDelay (tDelay* const, uint32_t delay);
uint32_t tDelay_getDelay (tDelay* const);
void tDelay_tapIn (tDelay* const, float in, uint32_t tapDelay);
float tDelay_tapOut (tDelay* const, uint32_t tapDelay);
float tDelay_addTo (tDelay* const, float value, uint32_t tapDelay);
float tDelay_tick (tDelay* const, float sample);
float tDelay_getLastOut (tDelay* const);
float tDelay_getLastIn (tDelay* const);
//==============================================================================
/* Linearly-interpolating delay, reimplemented from STK (Cook and Scavone). */
typedef struct _tLinearDelay
{
float gain;
float* buff;
float lastOut, lastIn;
uint32_t inPoint, outPoint;
uint32_t maxDelay;
float delay;
float alpha, omAlpha;
} tLinearDelay;
void tLinearDelay_init (tLinearDelay* const, float delay, uint32_t maxDelay);
void tLinearDelay_free (tLinearDelay* const);
int tLinearDelay_setDelay (tLinearDelay* const, float delay);
float tLinearDelay_getDelay (tLinearDelay* const);
void tLinearDelay_tapIn (tLinearDelay* const, float in, uint32_t tapDelay);
float tLinearDelay_tapOut (tLinearDelay* const, float tapDelay);
float tLinearDelay_addTo (tLinearDelay* const, float value, uint32_t tapDelay);
float tLinearDelay_tick (tLinearDelay* const, float sample);
void tLinearDelay_tickIn (tLinearDelay* const d, float input);
float tLinearDelay_tickOut (tLinearDelay* const d);
float tLinearDelay_getLastOut (tLinearDelay* const);
float tLinearDelay_getLastIn (tLinearDelay* const);
//==============================================================================
/* Allpass-interpolating delay, reimplemented from STK (Cook and Scavone). */
typedef struct _tAllpassDelay
{
float gain;
float* buff;
float lastOut, lastIn;
uint32_t inPoint, outPoint;
uint32_t maxDelay;
float delay;
float alpha, omAlpha, coeff;
float apInput;
} tAllpassDelay;
void tAllpassDelay_init (tAllpassDelay* const, float delay, uint32_t maxDelay);
void tAllpassDelay_free (tAllpassDelay* const);
int tAllpassDelay_setDelay (tAllpassDelay* const, float delay);
float tAllpassDelay_getDelay (tAllpassDelay* const);
void tAllpassDelay_tapIn (tAllpassDelay* const, float in, uint32_t tapDelay);
float tAllpassDelay_tapOut (tAllpassDelay* const, uint32_t tapDelay);
float tAllpassDelay_addTo (tAllpassDelay* const, float value, uint32_t tapDelay);
float tAllpassDelay_tick (tAllpassDelay* const, float sample);
float tAllpassDelay_getLastOut (tAllpassDelay* const);
float tAllpassDelay_getLastIn (tAllpassDelay* const);
//==============================================================================
/* Linear interpolating delay with fixed read and write pointers, variable rate. */
typedef struct _tTapeDelay
{
float gain;
float* buff;
float lastOut, lastIn;
uint32_t inPoint;
uint32_t maxDelay;
float delay, inc, idx;
float apInput;
} tTapeDelay;
void tTapeDelay_init (tTapeDelay* const, float delay, uint32_t maxDelay);
void tTapeDelay_free (tTapeDelay* const);
int tTapeDelay_setDelay (tTapeDelay* const, float delay);
float tTapeDelay_getDelay (tTapeDelay* const);
void tTapeDelay_tapIn (tTapeDelay* const, float in, uint32_t tapDelay);
float tTapeDelay_tapOut (tTapeDelay* const d, float tapDelay);
float tTapeDelay_addTo (tTapeDelay* const, float value, uint32_t tapDelay);
float tTapeDelay_tick (tTapeDelay* const, float sample);
float tTapeDelay_getLastOut (tTapeDelay* const);
float tTapeDelay_getLastIn (tTapeDelay* const);
//==============================================================================
#ifdef __cplusplus
}
#endif
#endif // LEAF_DELAY_H_INCLUDED
//==============================================================================