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perf: WIP benchmarks #29

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5 changes: 5 additions & 0 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -18,8 +18,13 @@ include = [
[dev-dependencies]
proptest = "1.7.0"
paste = "1.0.15"
rand = "0.9.2"

[profile.test]
opt-level = 3
overflow-checks = true
debug-assertions = true

[[bench]]
name = "main"
harness = false
166 changes: 166 additions & 0 deletions benches/main.rs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,166 @@
use clipline::*;
use rand::distr::{Uniform, uniform, uniform::SampleUniform};
use rand::prelude::*;

const RAND_SEED: u64 = 0;
const NUM_SAMPLES: usize = 10_000;

struct LineGenC<T: SampleUniform> {
x_i: Uniform<T>,
y_i: Uniform<T>,

x_omax_ex: Uniform<T>,
x_omax_in: Uniform<T>,
y_omax_ex: Uniform<T>,
y_omax_in: Uniform<T>,
}

macro_rules! gen_clip {
($($T:ty),+) => {
$(impl LineGenC<$T> {
fn new(x_max: $T, y_max: $T) -> Result<Self, uniform::Error> {
Ok(Self {
x_i: Uniform::new_inclusive(<$T>::MIN, x_max)?,
y_i: Uniform::new_inclusive(<$T>::MIN, y_max)?,
x_omax_ex: Uniform::new_inclusive(x_max + 1, <$T>::MAX)?,
x_omax_in: Uniform::new_inclusive(x_max, <$T>::MAX)?,
y_omax_ex: Uniform::new_inclusive(y_max + 1, <$T>::MAX)?,
y_omax_in: Uniform::new_inclusive(y_max, <$T>::MAX)?,
})
}

fn from_clip(clip: &Clip<$T>) -> Result<Self, uniform::Error> {
Self::new(clip.x_max(), clip.y_max())
}

fn reject<R: Rng>(&self, rng: &mut R) -> [$T; 4] {
let [x0, y0, x1, y1] = match rng.random() {
false => [
rng.random(),
rng.random(),
self.y_omax_ex.sample(rng),
self.y_omax_in.sample(rng),
],
true => [
self.x_omax_ex.sample(rng),
self.x_omax_in.sample(rng),
rng.random(),
rng.random(),
],
};
[x0, y0, x1, y1]
}

fn accept<R: Rng>(&self, rng: &mut R) -> [$T; 4] {
let [x0, y0, x1, y1] = [
self.x_i.sample(rng),
self.x_i.sample(rng),
self.y_i.sample(rng),
self.y_i.sample(rng),
];
[x0, y0, x1, y1]
}

fn complex<R: Rng>(&self, rng: &mut R) -> [$T; 4] {
let [ox, oy] = rng.random();
let x0 = self.x_i.sample(rng);
let y0 = self.y_i.sample(rng);
let x1 = if ox { self.x_omax_ex.sample(rng) } else { self.x_i.sample(rng) };
let y1 = if oy { self.y_omax_ex.sample(rng) } else { self.y_i.sample(rng) };
[x0, y0, x1, y1]
}
})+
};
}

gen_clip!(u8, i8, u16, i16);

struct LineGenV<T: SampleUniform> {
x_i: Uniform<T>,
y_i: Uniform<T>,

x_omin_ex: Uniform<T>,
x_omin_in: Uniform<T>,
y_omin_ex: Uniform<T>,
y_omin_in: Uniform<T>,
x_omax_ex: Uniform<T>,
x_omax_in: Uniform<T>,
y_omax_ex: Uniform<T>,
y_omax_in: Uniform<T>,
}

macro_rules! gen_viewport {
($($T:ty),+) => {
$(impl LineGenV<$T> {
fn new(x_min: $T, y_min: $T, x_max: $T, y_max: $T) -> Result<Self, uniform::Error> {
Ok(Self {
x_i: Uniform::new_inclusive(x_min, x_max)?,
y_i: Uniform::new_inclusive(y_min, y_max)?,
x_omin_ex: Uniform::new(<$T>::MIN, x_min)?,
x_omin_in: Uniform::new_inclusive(<$T>::MIN, x_min)?,
y_omin_ex: Uniform::new(<$T>::MIN, y_min)?,
y_omin_in: Uniform::new_inclusive(<$T>::MIN, y_min)?,
x_omax_ex: Uniform::new_inclusive(x_max + 1, <$T>::MAX)?,
x_omax_in: Uniform::new_inclusive(x_max, <$T>::MAX)?,
y_omax_ex: Uniform::new_inclusive(y_max + 1, <$T>::MAX)?,
y_omax_in: Uniform::new_inclusive(y_max, <$T>::MAX)?,
})
}

fn from_viewport(clip: &Viewport<$T>) -> Result<Self, uniform::Error> {
Self::new(clip.x_min(), clip.y_min(), clip.x_max(), clip.y_max())
}

fn reject<R: Rng>(&self, rng: &mut R) -> [$T; 4] {
let [x0, y0, x1, y1] = match rng.random::<[bool; 2]>() {
[false, false] => [
rng.random(),
rng.random(),
self.y_omin_ex.sample(rng),
self.y_omin_in.sample(rng),
],
[false, true] => [
rng.random(),
rng.random(),
self.y_omax_ex.sample(rng),
self.y_omax_in.sample(rng),
],
[true, false] => [
self.x_omin_ex.sample(rng),
self.x_omin_in.sample(rng),
rng.random(),
rng.random(),
],
[true, true] => [
self.x_omax_ex.sample(rng),
self.x_omax_in.sample(rng),
rng.random(),
rng.random(),
],
};
[x0, y0, x1, y1]
}

fn accept<R: Rng>(&self, rng: &mut R) -> [$T; 4] {
let [x0, y0, x1, y1] = [
self.x_i.sample(rng),
self.x_i.sample(rng),
self.y_i.sample(rng),
self.y_i.sample(rng),
];
[x0, y0, x1, y1]
}

fn complex<R: Rng>(&self, rng: &mut R) -> [$T; 4] {
let [ix, iy, ox, oy] = rng.random();
let x0 = if ix { self.x_omin_ex.sample(rng) } else { self.x_i.sample(rng) };
let y0 = if iy { self.y_omin_ex.sample(rng) } else { self.y_i.sample(rng) };
let x1 = if ox { self.x_omax_ex.sample(rng) } else { self.x_i.sample(rng) };
let y1 = if oy { self.y_omax_ex.sample(rng) } else { self.y_i.sample(rng) };
[x0, y0, x1, y1]
}
})+
};
}

gen_viewport!(u8, i8, u16, i16);
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