/*
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*/
// A simple example of performing filtering an image using a general integer rectangular kernel
// implemented with Intel IPP functions:
// ipprFilterBorderGetSize
// ipprFilterBorderInit_16s
// ipprFilterBorder_8u_C1R
#include <stdio.h>
#include "ipp.h"
#define WIDTH 128 /* image width */
#define HEIGHT 64 /* image height */
#define DEPTH 64 /* image depth */
const Ipp16s kernel[3*3*3] = { 0, 1, 0, 1, 0, 1, 0, 1, 0,
0, 1, 0, 1, 0, 1, 0, 1, 0 ,
0, 1, 0, 1, 0, 1, 0, 1, 0 };
/* 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* pSrc = NULL, *pDst = NULL; /* Pointers to source/destination images */
IppSizeL srcPlaneStep =0, srcStep = 0, dstPlaneStep, dstStep = 0; /* Steps, in bytes, through the source/destination images */
IpprVolumeL roiVolume = { WIDTH, HEIGHT, DEPTH }; /* Size of source/destination ROI in pixels */
IpprVolumeL kernelVolume = { 3, 3, 3};
Ipp8u *pBuffer = NULL; /* Pointer to the work buffer */
IpprFilterBorderSpec* pSpec = NULL; /* context structure */
IppSizeL iTmpBufSize = 0, iSpecSize = 0; /* Common work buffer size */
IpprBorderType borderType = ipprBorderRepl;
Ipp8u borderValue = 0;
int numChannels = 1;
pSrc = ippsMalloc_8u_L(roiVolume.width*roiVolume.height*roiVolume.depth);
pDst = ippsMalloc_8u_L(roiVolume.width*roiVolume.height*roiVolume.depth);
srcStep = roiVolume.width;
srcPlaneStep = roiVolume.height * srcStep;
dstStep = roiVolume.width;
dstPlaneStep = roiVolume.height * srcStep;
check_sts( status = ipprFilterBorderGetSize_L(kernelVolume, roiVolume, ipp8u, ipp16s, numChannels, &iSpecSize, &iTmpBufSize) )
pSpec = (IpprFilterBorderSpec *)ippsMalloc_8u(iSpecSize);
pBuffer = ippsMalloc_8u_L(iTmpBufSize);
check_sts( status = ipprFilterBorderInit_16s_L(kernel, kernelVolume, 4, ipp8u, numChannels, pSpec) )
check_sts(status = ipprFilterBorder_8u_C1V_L(pSrc, srcPlaneStep, srcStep, pDst, dstPlaneStep, dstStep, roiVolume, borderType, &borderValue, pSpec, pBuffer))
EXIT_MAIN
ippsFree(pBuffer);
ippsFree(pSpec);
ippiFree(pSrc);
ippiFree(pDst);
printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status));
return (int)status;
}