/* 
// Copyright 2015 2018 Intel Corporation All Rights Reserved.
// 
// The source code, information and material ("Material") contained herein is
// owned by Intel Corporation or its suppliers or licensors, and title
// to such Material remains with Intel Corporation or its suppliers or
// licensors. The Material contains proprietary information of Intel
// or its suppliers and licensors. The Material is protected by worldwide
// copyright laws and treaty provisions. No part of the Material may be used,
// copied, reproduced, modified, published, uploaded, posted, transmitted,
// distributed or disclosed in any way without Intel's prior express written
// permission. No license under any patent, copyright or other intellectual
// property rights in the Material is granted to or conferred upon you,
// either expressly, by implication, inducement, estoppel or otherwise.
// Any license under such intellectual property rights must be express and
// approved by Intel in writing.
// 
// Unless otherwise agreed by Intel in writing,
// you may not remove or alter this notice or any other notice embedded in
// Materials by Intel or Intel's suppliers or licensors in any way.
*/

//Perform linear filtering of an image using one of
//  predefined convolution kernels.
//     ippiFilterSobelVertSecondBorderGetBufferSize
//     ippiFilterSobelVertSecondBorder_8u16s_C1R

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

/* 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 Intel(R) Integrated Primitives (Intel(R) IPP) function returned status different from ippStsNoErr */

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

int main(void)
{

    IppStatus status = ippStsNoErr;
    Ipp8u pSrc[8*8]={
                     4, 4, 4, 4, 4, 4, 4, 4,
                     4, 3, 3, 3, 3, 3, 3, 4,
                     4, 3, 2, 2, 2, 2, 3, 4,
                     4, 3, 2, 1, 1, 2, 3, 4,
                     4, 3, 2, 1, 1, 2, 3, 4,
                     4, 3, 2, 2, 2, 2, 3, 4,
                     4, 3, 3, 3, 3, 3, 3, 4,
                     4, 4, 4, 4, 4, 4, 4, 4
                   };
    Ipp16s pDst[8*8];
    IppiSize roiSize = { 8, 8 };
    Ipp8u borderValue = 3;
    int pBufferSize = 0;
    Ipp8u* pBuffer = NULL;

    check_sts( status = ippiFilterSobelVertSecondBorderGetBufferSize(roiSize, ippMskSize3x3,
       ipp8u, ipp16s, 1, &pBufferSize))

    pBuffer = ippiMalloc_8u_C1 ( 8, 8, &pBufferSize );

    check_sts( status = ippiFilterSobelVertSecondBorder_8u16s_C1R ( pSrc, 8, pDst, 8*sizeof(Ipp16s), roiSize,
                         ippMskSize3x3, ippBorderConst, borderValue, pBuffer ) )

EXIT_MAIN
    ippsFree(pBuffer);
    printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
    return status;
}
/*
    Result:

    4 4 4 4 4 4 4 4
    4 3 3 3 3 3 3 4
    4 3 2 2 2 2 3 4
    4 3 2 1 1 2 3 4
    4 3 2 1 1 2 3 4     pSrc
    4 3 2 2 2 2 3 4
    4 3 3 3 3 3 3 4
    4 4 4 4 4 4 4 4


    -4 1 0 0 0 0 1 -4
    -7 2 1 0 0 1 2 -7
    -8 1 2 1 1 2 1 -8
    -8 0 1 3 3 1 0 -8
    -8 0 1 3 3 1 0 -8   pDst
    -8 1 2 1 1 2 1 -8
    -7 2 1 0 0 1 2 -7
    -4 1 0 0 0 0 1 -4

*/