/*
 * Copyright 1996-2000 The MathWorks, Inc.
 * $Revision: 1.5 $ $Date: 2000/09/21 21:40:52 $
 */
#ifndef __BUFF_H__
#define __BUFF_H__
/*---------------------------------------------------------------------------
 *
 * buff.h - Buffer management
 * 
 * Create and manage a circular buffer.
 * 
 *---------------------------------------------------------------------------*/

#include "dsp_sim.h"

#undef DEBUG_BUFFER

typedef struct {
    int_T inWidth;      /* Buffer input width */
    int_T outWidth;     /* Buffer output width */

    int_T dataAvail;    /* Data available in the buffer*/

    void *buffPtr;      /* Pointer to the data */
    int_T dataSize;     /* Size of a single piece of data */
    int_T intBuffLen;   /* Length of the internal buffer */

    int_T idxTop;
    int_T idxBottom;


} buff_T;

buff_T *createBuffer(SimStruct *S,
                     const int_T inWidth, 
                     const int_T outWidth, 
                     const int_T size, 
                     const int_T numIC, 
                     const void* icPtr);

void    freeBuffer(buff_T *buff);

char   *writeBuffer(buff_T *buff, const void* inData, const int_T count);

char   *readBuffer(buff_T *buff, void* outData, const int_T count);

#endif