Stuff

in_out = 0;
	for (i = active; i < inactive - 1; i++) {
            j = i;	

	    if (fill_rule == CAIRO_FILL_RULE_WINDING) {
		in_out = 0;
		if (edges[i].clockWise)
		    in_out++;
		else
		    in_out--;

		for (++i; i < num_edges && in_out != 0; i++)
		{
			if (edges[i].clockWise)
				in_out++;
			else
				in_out--;
		}	

		if (in_out == 0)
		    continue;
	    } else {
		in_out++;
		if ((in_out & 1) == 0)
		    continue;
	    }
	    _cairo_traps_add_trap (traps, y, y_next, &edges[j].edge, &edges[i].edge);
	}