pub mod avx2;

pub mod avx512;

pub mod neon;

pub mod scalar;

pub mod sse2;

pub mod ssse3;

pub mod wasm;

pub type Adler32Imp = fn(u16, u16, &[u8]) -> (u16, u16);

#[inline]

#[allow(non_snake_case)]

pub const fn _MM_SHUFFLE(z: u32, y: u32, x: u32, w: u32) -> i32 {

  ((z << 6) | (y << 4) | (x << 2) | w) as i32

}

pub fn get_imp() -> Adler32Imp {

  avx512::get_imp()

    .or_else(neon::get_imp)

    .or_else(avx2::get_imp)

    .or_else(ssse3::get_imp)

    .or_else(sse2::get_imp)

    .or_else(wasm::get_imp)

    .unwrap_or(scalar::update)

}