  We present a lattice QCD calculation of transverse momentum dependent parton
distribution functions (TMDs) of protons using staple-shaped Wilson lines. For
time-reversal odd observables, we calculate the generalized Sivers and
Boer-Mulders transverse momentum shifts in SIDIS and DY cases, and for T-even
observables we calculate the transversity related to the tensor charge and the
generalized worm-gear shift. The calculation is done on two different n_f=2+1
ensembles: domain-wall fermion (DWF) with lattice spacing 0.084 fm and pion
mass of 297 MeV, and clover fermion with lattice spacing 0.114 fm and pion mass
of 317 MeV. The results from those two different discretizations are consistent
with each other.
