omxsp_copy_s16.c

来自「The OpenMAX DL (Development Layer) APIs 」· C语言 代码 · 共 74 行

/**
 * 
 * File Name:  omxSP_Copy_S16.c
 * OpenMAX DL: v1.0.2
 * Revision:   10586
 * Date:       Wednesday, March 5, 2008
 * 
 * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
 * 
 * 
 *
 * Description:
 * This file contains module for vector copy
 *
 */

#include "omxtypes.h"
#include "armOMX.h"
#include "omxSP.h"

#include "armCOMM.h"

/**
 * Function:  omxSP_Copy_S16   (2.2.1.1.1)
 *
 * Description:
 * Copies the len elements of the vector pointed to by pSrcinto the len 
 * elements of the vector pointed to by pDst. That is: 
 *     pDst[i] = pSrc[i], for (i=0, 1, ..., len-1)
 *
 * Input Arguments:
 *   
 *   pSrc - pointer to the source vector 
 *   len - number of elements contained in the source and destination vectors 
 *
 * Output Arguments:
 *   
 *   pDst - pointer to the destination vector 
 *
 * Return Value:
 *    
 *    OMX_Sts_NoErr - no error 
 *    OMX_Sts_BadArgErr - bad arguments detected; returned if one or more of 
 *              the following is true: 
 *    -   pSrc or pDst is NULL 
 *    -   len < 0 
 *
 */

OMXResult omxSP_Copy_S16(
     const OMX_S16 * pSrc,
     OMX_S16 * pDst,
     OMX_INT len
 )
{
    OMX_INT i;
    /* Argument Check */
    armRetArgErrIf( pSrc == NULL, OMX_Sts_BadArgErr);
    armRetArgErrIf( pDst == NULL, OMX_Sts_BadArgErr);
    armRetArgErrIf( len < 0, OMX_Sts_BadArgErr);
    
    /* Processing */    
    for (i = len; i > 0; i--) 
    {
        *pDst++ = *pSrc++;
    }

    return OMX_Sts_NoErr;
}

/*End of File*/