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use crate::{Alignment, Quaternion, Scalar, Vector, utils::WideTy};
#[expect(private_bounds)]
impl<Wide, T, const LANES: usize, A: Alignment> Quaternion<Wide, A>
where
Wide: WideTy<Array = [T; LANES]>,
T: Scalar,
{
/// Creates an SoA (Structure of Arrays) quaternion from an array of lanes
/// or scalar quaternions.
///
/// # Examples
///
/// ```
/// # use ggmath::Quat;
/// # use wide::i32x4;
/// #
/// let lanes = [
/// Quat::from_xyzw(1, 2, 3, 4),
/// Quat::from_xyzw(5, 6, 7, 8),
/// Quat::from_xyzw(9, 10, 11, 12),
/// Quat::from_xyzw(13, 14, 15, 16),
/// ];
/// assert_eq!(
/// Quat::<i32x4>::from_lanes(&lanes),
/// Quat::from_xyzw(
/// i32x4::new([1, 5, 9, 13]),
/// i32x4::new([2, 6, 10, 14]),
/// i32x4::new([3, 7, 11, 15]),
/// i32x4::new([4, 8, 12, 16]),
/// ),
/// );
/// ```
#[inline]
#[must_use]
pub fn from_lanes(lanes: &[Quaternion<T, A>; LANES]) -> Self {
Self(Vector::from_lane_fn(|lane| lanes[lane].0))
}
/// Creates an SoA (Structure of Arrays) quaternion by calling function `f`
/// for each lane index.
///
/// # Examples
///
/// ```
/// # use ggmath::Quat;
/// # use wide::i32x4;
/// #
/// let lanes = [
/// Quat::from_xyzw(1, 2, 3, 4),
/// Quat::from_xyzw(5, 6, 7, 8),
/// Quat::from_xyzw(9, 10, 11, 12),
/// Quat::from_xyzw(13, 14, 15, 16),
/// ];
/// assert_eq!(
/// Quat::<i32x4>::from_lane_fn(|lane_index| lanes[lane_index]),
/// Quat::from_xyzw(
/// i32x4::new([1, 5, 9, 13]),
/// i32x4::new([2, 6, 10, 14]),
/// i32x4::new([3, 7, 11, 15]),
/// i32x4::new([4, 8, 12, 16]),
/// ),
/// );
/// ```
#[inline]
#[must_use]
#[track_caller]
pub fn from_lane_fn<F>(f: F) -> Self
where
F: FnMut(usize) -> Quaternion<T, A>,
{
Self::from_lanes(&core::array::from_fn(f))
}
/// Converts an SoA (Structure of Arrays) quaternion to an array of lanes or
/// scalar quaternions.
///
/// # Examples
///
/// ```
/// # use ggmath::Quat;
/// # use wide::i32x4;
/// #
/// let quat = Quat::from_xyzw(
/// i32x4::new([1, 5, 9, 13]),
/// i32x4::new([2, 6, 10, 14]),
/// i32x4::new([3, 7, 11, 15]),
/// i32x4::new([4, 8, 12, 16]),
/// );
/// assert_eq!(
/// quat.to_lanes(),
/// [
/// Quat::from_xyzw(1, 2, 3, 4),
/// Quat::from_xyzw(5, 6, 7, 8),
/// Quat::from_xyzw(9, 10, 11, 12),
/// Quat::from_xyzw(13, 14, 15, 16),
/// ],
/// );
/// ```
#[inline]
#[must_use]
pub fn to_lanes(&self) -> [Quaternion<T, A>; LANES] {
core::array::from_fn(|lane| self.lane(lane))
}
/// Takes an SoA (Structure of Arrays) quaternion and returns the lane at
/// the given index.
///
/// # Panics
///
/// Panics if `lane` is greater than or equal to the number of lanes.
///
/// # Examples
///
/// ```
/// # use ggmath::Quat;
/// # use wide::i32x4;
/// #
/// let quat = Quat::from_xyzw(
/// i32x4::new([1, 5, 9, 13]),
/// i32x4::new([2, 6, 10, 14]),
/// i32x4::new([3, 7, 11, 15]),
/// i32x4::new([4, 8, 12, 16]),
/// );
/// assert_eq!(quat.lane(1), Quat::from_xyzw(5, 6, 7, 8));
/// ```
#[inline]
#[must_use]
#[track_caller]
pub fn lane(&self, lane: usize) -> Quaternion<T, A> {
Quaternion::from_vector(self.0.lane(lane))
}
/// Takes an SoA (Structure of Arrays) quaternion and sets the lane at the
/// given index to `value`.
///
/// # Panics
///
/// Panics if `lane` is greater than or equal to the number of lanes.
///
/// # Examples
///
/// ```
/// # use ggmath::Quat;
/// # use wide::i32x4;
/// #
/// let mut quat = Quat::from_xyzw(
/// i32x4::new([1, 5, 9, 13]),
/// i32x4::new([2, 6, 10, 14]),
/// i32x4::new([3, 7, 11, 15]),
/// i32x4::new([4, 8, 12, 16]),
/// );
/// quat.set_lane(1, Quat::IDENTITY);
/// assert_eq!(
/// quat,
/// Quat::from_xyzw(
/// i32x4::new([1, 0, 9, 13]),
/// i32x4::new([2, 0, 10, 14]),
/// i32x4::new([3, 0, 11, 15]),
/// i32x4::new([4, 1, 12, 16]),
/// ),
/// );
/// ```
#[inline]
#[track_caller]
pub fn set_lane(&mut self, lane: usize, value: Quaternion<T, A>) {
self.0.set_lane(lane, value.0);
}
/// For each lane, returns `true` if `self` is equal to `other`.
///
/// Equivalent to
/// `(self.lane(0) == other.lane(0), self.lane(1) == other.lane(1), ...)`.
#[inline]
#[must_use]
pub fn simd_eq(&self, other: &Self) -> Wide {
self.0.simd_eq(other.0)
}
/// For each lane, returns `true` if `self` is not equal to `other`.
///
/// Equivalent to
/// `(self.lane(0) != other.lane(0), self.lane(1) != other.lane(1), ...)`.
#[inline]
#[must_use]
pub fn simd_ne(&self, other: &Self) -> Wide {
self.0.simd_ne(other.0)
}
}
#[cfg(test)]
mod tests {
use wide::i32x4;
use crate::{
Quat, QuatA, Vec4,
test_utils::{assert_panic, assert_test_eq, for_types, random_iter},
};
#[test]
fn test_from_lanes() {
assert_eq!(
QuatA::<i32x4>::from_lanes(&[
QuatA::from_xyzw(1, 2, 3, 4),
QuatA::from_xyzw(5, 6, 7, 8),
QuatA::from_xyzw(9, 10, 11, 12),
QuatA::from_xyzw(13, 14, 15, 16),
]),
QuatA::from_xyzw(
i32x4::new([1, 5, 9, 13]),
i32x4::new([2, 6, 10, 14]),
i32x4::new([3, 7, 11, 15]),
i32x4::new([4, 8, 12, 16]),
),
);
}
#[test]
fn test_from_lane_fn() {
assert_eq!(
QuatA::<i32x4>::from_lane_fn(|i| [
QuatA::from_xyzw(1, 2, 3, 4),
QuatA::from_xyzw(5, 6, 7, 8),
QuatA::from_xyzw(9, 10, 11, 12),
QuatA::from_xyzw(13, 14, 15, 16),
][i]),
QuatA::from_xyzw(
i32x4::new([1, 5, 9, 13]),
i32x4::new([2, 6, 10, 14]),
i32x4::new([3, 7, 11, 15]),
i32x4::new([4, 8, 12, 16]),
),
);
}
#[test]
fn test_to_lanes() {
assert_eq!(
QuatA::from_xyzw(
i32x4::new([1, 5, 9, 13]),
i32x4::new([2, 6, 10, 14]),
i32x4::new([3, 7, 11, 15]),
i32x4::new([4, 8, 12, 16]),
)
.to_lanes(),
[
QuatA::from_xyzw(1, 2, 3, 4),
QuatA::from_xyzw(5, 6, 7, 8),
QuatA::from_xyzw(9, 10, 11, 12),
QuatA::from_xyzw(13, 14, 15, 16),
],
);
}
#[test]
fn test_lane() {
let quat = QuatA::from_xyzw(
i32x4::new([1, 5, 9, 13]),
i32x4::new([2, 6, 10, 14]),
i32x4::new([3, 7, 11, 15]),
i32x4::new([4, 8, 12, 16]),
);
assert_eq!(quat.lane(0), QuatA::from_xyzw(1, 2, 3, 4));
assert_eq!(quat.lane(1), QuatA::from_xyzw(5, 6, 7, 8));
assert_eq!(quat.lane(2), QuatA::from_xyzw(9, 10, 11, 12));
assert_eq!(quat.lane(3), QuatA::from_xyzw(13, 14, 15, 16));
assert_panic!(quat.lane(4));
}
#[test]
fn test_set_lane() {
let mut quat = QuatA::from_xyzw(
i32x4::new([1, 5, 9, 13]),
i32x4::new([2, 6, 10, 14]),
i32x4::new([3, 7, 11, 15]),
i32x4::new([4, 8, 12, 16]),
);
quat.set_lane(0, QuatA::from_xyzw(-1, -2, -3, -4));
assert_eq!(
quat,
QuatA::from_xyzw(
i32x4::new([-1, 5, 9, 13]),
i32x4::new([-2, 6, 10, 14]),
i32x4::new([-3, 7, 11, 15]),
i32x4::new([-4, 8, 12, 16]),
)
);
quat.set_lane(1, QuatA::from_xyzw(-5, -6, -7, -8));
assert_eq!(
quat,
QuatA::from_xyzw(
i32x4::new([-1, -5, 9, 13]),
i32x4::new([-2, -6, 10, 14]),
i32x4::new([-3, -7, 11, 15]),
i32x4::new([-4, -8, 12, 16]),
)
);
quat.set_lane(2, QuatA::from_xyzw(-9, -10, -11, -12));
assert_eq!(
quat,
QuatA::from_xyzw(
i32x4::new([-1, -5, -9, 13]),
i32x4::new([-2, -6, -10, 14]),
i32x4::new([-3, -7, -11, 15]),
i32x4::new([-4, -8, -12, 16]),
)
);
quat.set_lane(3, QuatA::from_xyzw(-13, -14, -15, -16));
assert_eq!(
quat,
QuatA::from_xyzw(
i32x4::new([-1, -5, -9, -13]),
i32x4::new([-2, -6, -10, -14]),
i32x4::new([-3, -7, -11, -15]),
i32x4::new([-4, -8, -12, -16]),
)
);
assert_panic!(quat.clone().set_lane(4, QuatA::IDENTITY));
}
#[test]
fn test_simd_eq() {
for_types!(|Wide: WideFloat| {
for ([a, b], mask) in random_iter::<([Quat<Wide>; 2], Vec4<Wide>)>() {
let mask = mask.sign_negative_mask();
let b = Quat::from_vector(mask.blend(a.to_vector(), b.to_vector()));
assert_test_eq!(a.simd_eq(&b), a.to_vector().simd_eq(b.to_vector()));
}
});
}
#[test]
fn test_simd_ne() {
for_types!(|Wide: WideFloat| {
for ([a, b], mask) in random_iter::<([Quat<Wide>; 2], Vec4<Wide>)>() {
let mask = mask.sign_negative_mask();
let b = Quat::from_vector(mask.blend(a.to_vector(), b.to_vector()));
assert_test_eq!(a.simd_ne(&b), a.to_vector().simd_ne(b.to_vector()));
}
});
}
}