Function prep_8tap

pub fn prep_8tap<T: Pixel>(
    tmp: &mut [i16],
    src: PlaneSlice<'_, T>,
    width: usize,
    height: usize,
    col_frac: i32,
    row_frac: i32,
    mode_x: FilterMode,
    mode_y: FilterMode,
    bit_depth: usize,
    _cpu: CpuFeatureLevel,
)