ocl_convolution.cl

OCLSTRINGIFY(
//%PREPROCESSOR%

__kernel void convolve(
	const __global  uint * const input,
	__constant uint * const mask,
	__global  uint * const output,
	const uint inputWidth,
	const uint maskWidth)
{
	const int x = get_global_id(0);
	const int y = get_global_id(1);

	uint sum = 0;
	for (int r = 0; r < maskWidth; r++) {
		const int idxIntmp = (y + r) * inputWidth + x;

		for (int c = 0; c < maskWidth; c++) {
			sum += mask[(r * maskWidth)  + c] * input[idxIntmp + c];
		}
	} 

	output[y * get_global_size(0) + x] = sum;
}

);