/*******************************************************************************
* Copyright 2015-2018 Intel Corporation.
*
* This software and the related documents are Intel copyrighted materials, and
* your use of them is governed by the express license under which they were
* provided to you (License). Unless the License provides otherwise, you may not
* use, modify, copy, publish, distribute, disclose or transmit this software or
* the related documents without Intel's prior written permission.
*
* This software and the related documents are provided as is, with no express
* or implied warranties, other than those that are expressly stated in the
* License.
*******************************************************************************/
// The code example below illustrates how to use the ippiScaleC function.
#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;
Ipp32u seed=0;
IppiSize roiSize = {8, 8}; /* Image sizes */
Ipp8u pSrc[8*8]={0}; /* Pointers to source images */
Ipp16s pDst[8*8]; /* Pointers to destination images */
Ipp64f mVal, aVal;
Ipp64f minSrc=IPP_MIN_8U, maxSrc=IPP_MAX_8U;
Ipp64f minDst=IPP_MIN_16S, maxDst=IPP_MAX_16S;
/* set random image */
check_sts( status = ippiAddRandUniform_8u_C1IR( pSrc, roiSize.width*sizeof(*pSrc), roiSize, IPP_MIN_8U, IPP_MAX_8U, &seed) )
/* calculate coefficient for scaling */
mVal = (maxDst-minDst) / (maxSrc-minSrc);
aVal = minDst - minSrc*mVal;
/* do scaling */
check_sts( status = ippiScaleC_8u16s_C1R(pSrc, roiSize.width*sizeof(*pSrc), mVal, aVal, pDst, roiSize.width*sizeof(*pDst), roiSize, ippAlgHintFast) )
EXIT_MAIN
printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
return (int)status;
}