projection:    12 ops
unprojection:  24 ops
Vs             3 * 4 * 11 = 132 ops

sum2_oN        4*24 odd4 S = odd * S * 96
sum2_o         2*24 odd4 S = odd * S * 48
sum2x_o        2*24 odd4 S = odd * S * 48
MxM            even * (S * 3168 + 48) + odd * (S * 3264 + 48)
------------------------------------------------------------
cg             even * (S * 3168 + 48) + odd * (S * 3456 + 48)

MxM              -> even * (S * 3168 + 48) + odd * (S * 3264 + 48)
  M            even * (S * 1584 + 24) + odd * (S * 1656 + 24)
  Mx           odd * (S * 1608 + 24) + even * (S * 1584 + 24)
M                -> even * (S * 1584 + 24) + odd * (S * 1656 + 24)
  Qee1Qeo      even4 * (S * 1584 + 24)
  1Qoo1Qoe     odd4 * (S * 1608 + 24)
  gsum         odd4 * S * 48
Mx               -> odd * (S * 1608 + 24) + even * (S * 1584 + 24)
  Soo1         odd4 * (S * 264 + 24)
  See1Seo      even4 * (S * 1584 + 24)
  1Soe         odd4 * S * 1344

Soo1             => odd4 * (S * 264 + 24)
  A-1            -> S * 132 + 12
    LA-1       S * 24 + 12
    RA-1       S * 3 * 2 * 18 = S * 108
  B-1            -> S * 132 + 12
    LB-1       S * 24 + 12
    BR-1       S * 3 * 2 * 18 = S * 108
1Soe             => odd4 * S * 1344
  1Sxy         S * (8 * projection + 8 * Vs + 8 * unproject) = S * 1344
See1Seo          => even4 * (S * 1584 + 24)
  Sxx1Sxy        -> S * 1584 + 24
    Sxy        S * (1344 - 24) = S * 1320
    Sxx1       S * (S * 264 + 24)
Qee1Qeo          => even4 * (S * 1584 + 24)
  Qxx1Qxy        -> S * 1584 + 24
1Qoo1Qoe         => odd4 * (S * 1608 + 24)
  1Qxx1Qxy       -> S * 1608 + 24
