lamino-filters/src/lamino_ft_conv.cl

__kernel void lamino_c( __global float * in, __global float * flt,  __global float * out)
{
    const int idx = get_global_id(0);
    const int idy = get_global_id(1);
    const int index = idy * get_global_size(0) + idx;


    if(idx % 2 == 0) // real part
    {
         out[index]= in[index] * flt[index] - in[index+1] * flt[index+1];
    }
    else // imaginary part
    {
        out[index]=  in[index] * flt[index - 1] + in[index-1] * flt[index];
    }
}