nalgebra/src/base/matrix_simba.rs
2020-11-19 16:28:06 +01:00

63 lines
1.3 KiB
Rust

use simba::simd::SimdValue;
use crate::base::allocator::Allocator;
use crate::base::dimension::Dim;
use crate::base::{DefaultAllocator, MatrixMN, Scalar};
/*
*
* Simd structures.
*
*/
impl<N, R, C> SimdValue for MatrixMN<N, R, C>
where
N: Scalar + SimdValue,
R: Dim,
C: Dim,
N::Element: Scalar,
DefaultAllocator: Allocator<N, R, C> + Allocator<N::Element, R, C>,
{
type Element = MatrixMN<N::Element, R, C>;
type SimdBool = N::SimdBool;
#[inline]
fn lanes() -> usize {
N::lanes()
}
#[inline]
fn splat(val: Self::Element) -> Self {
val.map(N::splat)
}
#[inline]
fn extract(&self, i: usize) -> Self::Element {
self.map(|e| e.extract(i))
}
#[inline]
unsafe fn extract_unchecked(&self, i: usize) -> Self::Element {
self.map(|e| e.extract_unchecked(i))
}
#[inline]
fn replace(&mut self, i: usize, val: Self::Element) {
self.zip_apply(&val, |mut a, b| {
a.replace(i, b);
a
})
}
#[inline]
unsafe fn replace_unchecked(&mut self, i: usize, val: Self::Element) {
self.zip_apply(&val, |mut a, b| {
a.replace_unchecked(i, b);
a
})
}
fn select(self, cond: Self::SimdBool, other: Self) -> Self {
self.zip_map(&other, |a, b| a.select(cond, b))
}
}