from_fixed_point
cd->srcColumn = from_fixed_point(column);
srcRow = from_fixed_point(row);
#define I4(i) from_fixed_point(mult_correction(\
#define V2(i) from_fixed_point(a[i] * alpha0 + c[i] * alpha1);
#define H2(i) from_fixed_point(a[i] * a0 + b[i] * a1);
#define to_float(number) from_fixed_point(static_cast<float>(number))