/* 
// Copyright 2015 2016 Intel Corporation All Rights Reserved.
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*/

// A simple example of calculating a correlation between 
// two LBPs using Intel IPP function:
//     ippiLBPImageHorizCorr_8u_C1R


#include <stdio.h>
#include "ipp.h"

#define WIDTH  128  /* image width */
#define HEIGHT  64  /* image height */

/* Next two defines are created to simplify code reading and understanding */
#define EXIT_MAIN exitLine:                                  /* Label for Exit */
#define check_sts(st) if((st) != ippStsNoErr) goto exitLine; /* Go to Exit if IPP function returned status different from ippStsNoErr */

/* Results of ippMalloc() are not validated because Intel(R) Integrated Performance Primitives functions perform bad arguments check and will return an appropriate status  */

int main(void)
{
    IppStatus status = ippStsNoErr;
    Ipp8u* pSrc1 = NULL, *pSrc2 = NULL, *pDst = NULL; /* Pointers to source/destination images */
    int srcStep1 = 0, srcStep2 = 0, dstStep = 0;      /* Steps, in bytes, through the source/destination images */
    IppiSize roiSize = { WIDTH, HEIGHT };             /* Size of source/destination ROI in pixels */
    const Ipp8u borderValue[1] = { 3 };
    int shift = 4;                                    /* Horizontal shift of the pSrc2 image */

    pSrc1 = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &srcStep1);
    pSrc2 = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &srcStep2);
    pDst  = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &dstStep);

    check_sts( status = ippiLBPImageHorizCorr_8u_C1R(pSrc1, srcStep1, pSrc2, srcStep2, pDst, dstStep, roiSize, shift, ippBorderRepl, borderValue) )

EXIT_MAIN
    ippiFree(pSrc1);
    ippiFree(pSrc2);
    ippiFree(pDst);
    printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
    return (int)status;
}