#include "itf_types.h"
void Interleaving(int *input, int *output, struct interleaver_h *ctrl) {

    int i=0,j=0,k=0;
    int cols,rows;
    int *P;

    cols = ctrl->cols;
    rows = ctrl->rows;
    P = ctrl->P;

    for (j=0;j<cols;j++)
    {
        for (i=0;i<rows;i++)
        {
            switch(ctrl->permutation) {
                case NONE:
                    output[k]=input[i*cols+j];
                    break;
                case COLS:
                    output[k]=input[i*cols+P[j]];
                    break;
                case ROWS:
                    output[k]=input[P[i]*cols+j];
                    break;
            }
            k++;
        }
    }
}