// --------------------------------------------------------------
#ifndef INTERPOLATION_H
#define	INTERPOLATION_H

#include "radio_types.h"
#include "real.h"
#include "cpx.h"
#include <fir/fir2.h>
#include "ringbuf.h"
#include "synchronization.h"

// --------------------------------------------------------------
#define CEF_MODE_NOP		0
#define CEF_MODE_CMA		1
#define CEF_MODE_DD			2
#define CEF_MODE_EQ_UPD		3

// --------------------------------------------------------------
// Types
// --------------------------------------------------------------
typedef struct _fir_cpx_t
{
	uint32_t N, r, w;
	cpx_t *pX;
	uint32_t M_up, M_down;
	sample_clock_t clockUp;
	sample_clock_t clockDown;
} fir_cpx_t;

typedef struct _fir_cpx_multirate_stage_t
{
	uint32_t N;
	uint32_t k;
	uint32_t K;
	cpx_t *pX;
	radio_float_t *pW;

} fir_cpx_multirate_stage_t;

typedef struct _fir_cpx_multirate_t
{
	uint32_t N;
	uint32_t L;
	uint32_t M;
	fir_cpx_multirate_stage_t *pStageUp;
	fir_cpx_multirate_stage_t *pStageDown;
	cpx_t res;
	uint32_t k;

} fir_cpx_multirate_t;

typedef struct _fdly_t
{
	int32_t Nf;
	radio_float_t *hf, *statef;
} fdly_t;

typedef struct _lgip_t
{
	int32_t N, bufsize;
	rbuf_t rbuf;
} lgip_t;

typedef struct _lgip_cpx_t
{
	cpx_t *pFifo;
	uint32_t N, L, w, r;

} lgip_cpx_t;

typedef struct _fir_pp_t
{
	uint32_t N, M;
	radio_float_t **ppCoeff, *pState;

} fir_pp_t;

typedef struct _ppip_t
{
	radio_float_t **ppCoeff, *pState;
	uint32_t N, M;
	rbuf_t rbuf;

} ppip_t;

typedef struct _ppip_cpx_t
{
	cpx_t *pFifo;
	radio_float_t **ppCoeff;
	uint32_t N, L, M, w, r;
	cpx_t *pX;

} ppip_cpx_t;

typedef struct _ppip_farrow_cpx_t
{
	cpx_t *pFifo, *pH, *pB;
	radio_float_t **ppCoeff;
	uint32_t N, L, M, w, r;
	cpx_t *pX;

} ppip_farrow_cpx_t;

// --------------------------------------------------------------
// Functions
// --------------------------------------------------------------
#ifdef __cplusplus
extern "C" {
#endif

void FDly_Init(fdly_t *pObj, int32_t order);
void FDly_Free(fdly_t *pObj);
void FDly_CalcCoeff(fdly_t *pObj, radio_float_t delay);
radio_float_t FDly_Process(fdly_t *pObj, radio_float_t x);

void LGIpInit(lgip_t *pObj, int32_t order, int32_t bufsize);
void LGIpFree(lgip_t *pObj);
radio_float_t LGIpProcess(lgip_t *pObj, radio_float_t x, int32_t m, radio_float_t mu);

void LGCpxIpInit(lgip_cpx_t *pObj, int32_t order);
void LGCpxIpFree(lgip_cpx_t *pObj);
cpx_t LGCpxIpProcess(lgip_cpx_t *pObj, cpx_t x, int32_t m, radio_float_t mu);

radio_float_t PolyPhaseSRRCInit(fir_pp_t *pObj, radio_float_t fa, radio_float_t tsym, radio_float_t alpha, uint32_t N, uint32_t M);
void PolyPhaseSRRCFree(fir_pp_t *pObj);
uint32_t PolyPhaseSRRCProcess(fir_pp_t *pObj, radio_float_t mu, radio_float_t *pX, radio_float_t *pY, uint32_t len);

radio_float_t PolyPhaseIpInit(ppip_t *pObj, radio_float_t fa, radio_float_t tsym, radio_float_t alpha, uint32_t N, uint32_t M);
void PolyPhaseIpFree(ppip_t *pObj);
radio_float_t PolyPhaseIpProcess(ppip_t *pObj, radio_float_t x, int32_t m, radio_float_t mu);

radio_float_t PolyPhaseCpxIpInit(ppip_cpx_t *pObj, radio_float_t fa, radio_float_t tsym, radio_float_t alpha, uint32_t N, uint32_t M);
void PolyPhaseCpxIpFree(ppip_cpx_t *pObj);
void PolyPhaseCpxIpFeed(ppip_cpx_t *pObj, uint32_t push, cpx_t x);
cpx_t PolyPhaseCpxIpInterpolate(ppip_cpx_t *pObj, int32_t pop, radio_float_t mu);

void FarrowPPIPCpxInit(ppip_farrow_cpx_t *pObj, uint32_t M, uint32_t N);
void FarrowPPIPCpxFree(ppip_farrow_cpx_t *pObj);
void FarrowPPIPCpxFeed(ppip_farrow_cpx_t *pObj, uint32_t push, cpx_t x);
cpx_t FarrowPPIPCpxInterpolate(ppip_farrow_cpx_t *pObj, uint32_t pop, radio_float_t mu);

void FirCpxInit(fir_cpx_t *pObj, uint32_t N, uint32_t M_up, uint32_t M_down);
void FirCpxFree(fir_cpx_t *pObj);
uint32_t FirCpxProcessReal(fir_cpx_t *pObj, radio_float_t *pW, cpx_t *pSrc, cpx_t *pDst, uint32_t len);

void FirCpxMultirateDownInit(fir_cpx_multirate_t *pObj, radio_float_t *pW, uint32_t N, uint32_t M);
void FirCpxMultirateUpInit(fir_cpx_multirate_t *pObj, radio_float_t *pW, uint32_t N, uint32_t L);
void FirCpxMultirateUpReinit(fir_cpx_multirate_t *pObj, radio_float_t *pW, uint32_t N, uint32_t L);
void FirCpxMultirateFree(fir_cpx_multirate_t *pObj);
uint32_t FirCpxDownProcess(fir_cpx_multirate_t *pObj, cpx_t *pSrc, cpx_t *pDst, uint32_t len);
uint32_t FirCpxUpProcess(fir_cpx_multirate_t *pObj, cpx_t *pSrc, cpx_t *pDst, uint32_t len);

#ifdef __cplusplus
}
#endif

// --------------------------------------------------------------
#endif // INTERPOLATION_H