/*--------------------------------------------------------
 *
 * In-place 2D Convolution, zero-padded border (C-RAM)
 * requires symmetric co-efficients
 *
 */

#include <cram.h>
#include "convo3.h"

#define imageType cuint8
typedef cuint8 imageType
imageType image[PIXELSperPE + KERNEL];
int k0 = 7, k1 = 5, k2 = 2;

/* convolution with 3x3 symetric kernel */
void convolve(const imageType * window[KERNEL][KERNEL], imageType & result)
{
    result =
          *window[1][1] * k0 +
          (*window[0][1] + *window[1][0] + *window[2][1] + *window[1][2]) * k1 +
          (*window[0][0] + *window[2][0] + *window[2][2] + *window[0][2]) * k2;
}

#include "../grid3x3/grid3x3.h"