Schematically:
vType == 0:
FuncGenConv2dSepDispatch_H  -->  _Line_XdirInc
FuncGenConv2dSepDispatch_V  -->  _Line_YdirNaiInc
vType == 1:
FuncGenConv2dSepDispatch_H  -->  _Line_Xdir     -->  _Pix_Xdir
FuncGenConv2dSepDispatch_V  -->  _Line_YdirSim  -->  _Pix_Ydir
vType == 2:
FuncGenConv2dSepDispatch_H  -->  _Line_XdirInc
FuncGenConv2dSepDispatch_V  -->  _Line_YdirSimInc
vType == 3:
FuncGenConv2dSep_Hor  -->  _Line_Xdir     -->  _Pix_Xdir
                         \>  _Line_YdirHor  -->  _Pix_Ydir
vType == 4:
FuncGenConv2dSep_Hor  -->  _Line_XdirInc
                         \>  _Line_YdirHorInc
vType == 5:
FuncGenConv2dSep_Ver  -->  _Line_XdirVerInc
                         \>  _Line_YdirVerInc
vType == 6:
FuncGenConv2dSep_VerCyc  -->  _Line_XdirVerInc
                            \>  _Line_XYdirVerCycInc
vType == 7:
FuncGenConv2dSep_Min  -->  _Line_XYdirMinInc
 1.5.1