#![feature(test)]
extern crate rand;
extern crate test;
extern crate cgmath;
use rand::{IsaacRng, Rng};
use test::Bencher;
use cgmath::{Quaternion, Basis2, Basis3, Vector3, Rotation2, Rotation3, Rad};
#[path="common/macros.rs"]
#[macro_use] mod macros;
fn bench_from_axis_angle<T: Rotation3<f32>>(bh: &mut Bencher) {
const LEN: usize = 1 << 13;
let mut rng = IsaacRng::new_unseeded();
let axis: Vec<_> = (0..LEN).map(|_| rng.gen::<Vector3<f32>>()).collect();
let angle: Vec<_> = (0..LEN).map(|_| rng.gen::<Rad<f32>>()).collect();
let mut i = 0;
bh.iter(|| {
i = (i + 1) & (LEN - 1);
unsafe {
let res: T = Rotation3::from_axis_angle(axis.get_unchecked(i), *angle.get_unchecked(i));
test::black_box(res)
}
})
}
#[bench]
fn _bench_quat_from_axisangle(bh: &mut Bencher) {
bench_from_axis_angle::<Quaternion<f32>>(bh)
}
#[bench]
fn _bench_rot3_from_axisangle(bh: &mut Bencher) {
bench_from_axis_angle::<Basis3<f32>>(bh)
}
bench_construction!(_bench_rot2_from_axisangle, Basis2<f32>, Rotation2::from_angle [ angle: Rad<f32> ]);
bench_construction!(_bench_quat_from_euler_angles, Quaternion<f32>, Rotation3::from_euler [roll: Rad<f32>, pitch: Rad<f32>, yaw: Rad<f32>]);
bench_construction!(_bench_rot3_from_euler_angles, Basis3<f32>, Rotation3::from_euler [roll: Rad<f32>, pitch: Rad<f32>, yaw: Rad<f32>]);