use core::ops::Mul;
use num_traits::real::Real;
use num_traits::Zero;
use super::len_values;
#[inline]
pub fn position_mat32<'out, T>(out: &'out mut [T; 3], m: &[T; 6]) -> &'out mut [T; 3]
where
T: Clone + Zero,
{
out[0] = m[4].clone();
out[1] = m[5].clone();
out[2] = T::zero();
out
}
#[inline]
pub fn position_mat4<'out, T>(out: &'out mut [T; 3], m: &[T; 16]) -> &'out mut [T; 3]
where
T: Clone,
{
out[0] = m[12].clone();
out[1] = m[13].clone();
out[2] = m[14].clone();
out
}
#[inline]
pub fn scale_mat2<'out, T>(out: &'out mut [T; 3], m: &[T; 4]) -> &'out mut [T; 3]
where
T: Real,
for<'a, 'b> &'a T: Mul<&'b T, Output = T>,
{
out[0] = len_values(&m[0], &m[2], &T::zero());
out[1] = len_values(&m[1], &m[3], &T::zero());
out[2] = T::one();
out
}
#[inline]
pub fn scale_mat32<'out, T>(out: &'out mut [T; 3], m: &[T; 6]) -> &'out mut [T; 3]
where
T: Real,
for<'a, 'b> &'a T: Mul<&'b T, Output = T>,
{
out[0] = len_values(&m[0], &m[2], &T::zero());
out[1] = len_values(&m[1], &m[3], &T::zero());
out[2] = T::one();
out
}
#[inline]
pub fn scale_mat3<'out, T>(out: &'out mut [T; 3], m: &[T; 9]) -> &'out mut [T; 3]
where
T: Real,
for<'a, 'b> &'a T: Mul<&'b T, Output = T>,
{
out[0] = len_values(&m[0], &m[3], &m[6]);
out[1] = len_values(&m[1], &m[4], &m[7]);
out[2] = len_values(&m[2], &m[5], &m[8]);
out
}
#[inline]
pub fn scale_mat4<'out, T>(out: &'out mut [T; 3], m: &[T; 16]) -> &'out mut [T; 3]
where
T: Real,
for<'a, 'b> &'a T: Mul<&'b T, Output = T>,
{
out[0] = len_values(&m[0], &m[4], &m[8]);
out[1] = len_values(&m[1], &m[5], &m[9]);
out[2] = len_values(&m[2], &m[6], &m[10]);
out
}