Area = f2 / Screen = 4x4
  1x1   1x2   2x2   3x3   Now





AREA_e1 AREA_e2 AREA_e3 AREA_e4
AREA_f1 AREA_f2 AREA_f3 AREA_f4
AREA_g1 AREA_g2 AREA_g3 AREA_g4
AREA_h1 AREA_h2 AREA_h3 AREA_h4