/*
// Copyright 2015 2016 Intel Corporation All Rights Reserved.
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*/
// A simple example of the source image transformation by remapping
// of its pixels using Intel IPP function:
// ippiRemap_8u_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 IPP function returned status different from ippStsNoErr */
int main(void)
{
IppStatus status = ippStsNoErr;
Ipp8u pSrc[4 * 4] =/* Pointers to source images */
{ 0, 1, 2, 3,
4, 5, 6, 7,
8, 9, 0, 1,
2, 3, 4, 5 };
Ipp8u pDst[4*4]; /* Pointers to destination images */
int srcStep = 4, dstStep = 4; /* Steps, in bytes, through the source/destination images */
IppiSize roiSize = { 4, 4 }; /* Size of source/destination ROI in pixels */
Ipp32f pxMap[4 * 4] = {/* Pointer to x map */
0, 1, 2, 3,
0, 1, 2, 0,
0, 1, 0, 0,
0, 1, 2, 3 };
Ipp32f pyMap[4 * 4] = {/* Pointer to y map */
0, 0, 0, 0,
1, 1, 1, 0,
2, 2, 0, 0,
3, 3, 3, 3 };
int xStep = 16, yStep = 16; /* Steps, in bytes, through the x and y maps */
IppiRect rect = { 0, 0, 4, 4 }; /* Region of interest in the source image */
check_sts( status = ippiRemap_8u_C1R(pSrc, roiSize, srcStep, rect, pxMap, xStep, pyMap, yStep,
pDst, dstStep, roiSize, IPPI_INTER_LINEAR) )
EXIT_MAIN
printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
return (int)status;
}