/*//////////////////////////////// "rle.c" /////////////////////////////////                  INTEL CORPORATION PROPRIETARY INFORMATION//     This software is supplied under the terms of a license agreement or//     nondisclosure agreement with Intel Corporation and may not be copied//     or disclosed except in accordance with the terms of that agreement.//          Copyright(c) 2005 Intel Corporation. All Rights Reserved.////     higher level functions of IPP DC ( data compression ) domain for//     RLE encoding/decoding usage*/#include "rle.h"/************************************************************************************************* * Function: * int EncodeRLE( Ipp8u * pSrc, int SrcLen, Ipp8u *pDst, int *pDstLen ) * * Function for relization of RLE Encoding * Gets the pSrc as a source vector of length SrcLen, does RLE Encoding and * writes result to pDst ( and length of pDst in pDstLen ) * * Main Parameters: *          pSrc         - pointer to Source buffer, *          pDst         - pointer to Destination buffer, *          SrcLen       - Length of source buffer, *          pDstLen      - Length of destination buffer * * Returns: *    ippStsNullPtrErr  If One or several pointer(s) is 0 *    ippStsSizeErr     Length of the source vector is less or equal zero *    ippStsNoErr       No errors * ************************************************************************************************/int EncodeRLE( Ipp8u *pSrc, int SrcLen, Ipp8u *pDst, int *pDstLen ) {    /* variables */    IppStatus st = ippStsNoErr;    Ipp8u * pSrcOrig = pSrc;    /* checks the pointer is not null */    if( pSrc == 0 || pDst == 0 )        return ippStsNullPtrErr;    /* do the RLE encoding using ippdc primitive */    st = ippsEncodeRLE_8u( &pSrcOrig, &SrcLen, pDst, pDstLen );    if( st != ippStsNoErr && st != ippStsDstSizeLessExpected ) {        fprintf( stderr, "Error <%d> while trying RLE encoding. Exiting.\n", st );    }    return ippStsNoErr; /* No errors */}/************************************************************************************************* * Function: * int DecodeRLE( Ipp8u * pSrc, int SrcLen, Ipp8u *pDst, int *pDstLen ) * * Function for relization of RLE Decoding * Gets the pSrc as a source vector of length SrcLen, does RLE decoding and * writes result to pDst ( and length of pDst in pDstLen ) * * Main Parameters: *          pSrc         - pointer to Source buffer, *          pDst         - pointer to Destination buffer, *          SrcLen       - Length of source buffer, *          pDstLen      - Length of destination buffer * * Returns: *    ippStsNullPtrErr  If One or several pointer(s) is 0 *    ippStsSizeErr     Length of the source vector is less or equal zero *    ippStsNoErr       No errors * ************************************************************************************************/int DecodeRLE( Ipp8u *pSrc, int SrcLen, Ipp8u *pDst, int *pDstLen ) {    /* variables */    IppStatus  st = ippStsNoErr;    Ipp8u * pSrcOrig = pSrc;    /* checks the pointer is not null */    if( 0 == pSrc || 0 == pDst )        return ippStsNullPtrErr;    /* does the RLE decoding */    st = ippsDecodeRLE_8u( &pSrcOrig, &SrcLen, pDst, pDstLen );    /* check the returned status of RLE decoding */    if ( st != ippStsNoErr && st != ippStsDstSizeLessExpected )  {        fprintf(stderr, "Error <%d> while trying RLE decoding. Exiting.\n", st);        return st;    }    return ippStsNoErr; /* No errors */}