segfaulting

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bendn 2023-09-05 08:28:27 +07:00
parent 0a5f7f14fd
commit c5ac6f3fe1
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8 changed files with 72 additions and 78 deletions

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@ -12,6 +12,13 @@ repository = "https://github.com/bend-n/fimg"
[dependencies]
png = { version = "0.17", features = ["unstable"], optional = true }
[dev-dependencies]
criterion = "0.5"
[[bench]]
name = "overlays"
harness = false
[features]
save = ["png"]
default = ["save"]

65
benches/overlays.rs Normal file
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@ -0,0 +1,65 @@
use criterion::{criterion_group, criterion_main, Criterion};
use fimg::*;
pub fn criterion_benchmark(bench: &mut Criterion) {
let mut group = bench.benchmark_group("overlays");
{
let mut a: Image<_, 3> = Image::alloc(64, 64);
let b = Image::<&[u8], 3>::new(
4.try_into().unwrap(),
4.try_into().unwrap(),
*&include_bytes!("3_4x4.imgbuf"),
);
group.bench_function("overlay 3x3 offset", |bench| {
bench.iter(|| unsafe {
for x in 0..16 {
for y in 0..16 {
a.as_mut().overlay_at(&b, x * 4, y * 4);
}
}
});
});
assert_eq!(a.as_ref().buffer, include_bytes!("3x3_at_out.imgbuf"));
}
{
let mut a: Image<_, 3> = Image::alloc(64, 64);
let b = Image::<&[u8], 4>::new(
4.try_into().unwrap(),
4.try_into().unwrap(),
*&include_bytes!("4_4x4.imgbuf"),
);
group.bench_function("overlay 4x3 offset", |bench| {
bench.iter(|| unsafe {
for x in 0..16 {
for y in 0..16 {
a.as_mut().overlay_at(&b, x * 4, y * 4);
}
}
});
});
assert_eq!(a.as_ref().buffer, include_bytes!("4x3_at_out.imgbuf"));
}
{
let mut a: Image<_, 4> = Image::alloc(64, 64);
let b = Image::<&[u8], 4>::new(
4.try_into().unwrap(),
4.try_into().unwrap(),
*&include_bytes!("4_4x4.imgbuf"),
);
group.bench_function("overlay 4x4 offset", |bench| {
bench.iter(|| unsafe {
for x in 0..16 {
for y in 0..16 {
a.as_mut().overlay_at(&b, x * 4, y * 4);
}
}
});
});
assert_eq!(a.as_ref().buffer, include_bytes!("4x4_at_out.imgbuf"));
}
group.finish();
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);

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@ -170,81 +170,3 @@ impl OverlayAt<Image<&[u8], 4>> for Image<&mut [u8], 4> {
self
}
}
#[cfg(test)]
mod bench {
extern crate test;
use test::Bencher;
use super::*;
use crate::{FromRef, FromRefMut};
#[bench]
fn overlay_3on3at(bench: &mut Bencher) {
let mut v = vec![0u8; 3 * 64 * 64];
let mut a: Image<_, 3> = Image::new(
64.try_into().unwrap(),
64.try_into().unwrap(),
v.as_mut_slice(),
);
let b = Image::<&[u8], 3>::new(
4.try_into().unwrap(),
4.try_into().unwrap(),
*&include_bytes!("../test_data/3_4x4.imgbuf"),
);
bench.iter(|| unsafe {
for x in 0..16 {
for y in 0..16 {
a.overlay_at(&b, x * 4, y * 4);
}
}
});
assert_eq!(
a.as_ref().buffer,
include_bytes!("../test_results/3x3_at_out.buf")
);
}
#[bench]
fn overlay_4on3at(bench: &mut Bencher) {
let mut a: Image<_, 3> = Image::alloc(64, 64);
let b = Image::<&[u8], 4>::new(
4.try_into().unwrap(),
4.try_into().unwrap(),
*&include_bytes!("../test_data/4_4x4.imgbuf"),
);
bench.iter(|| unsafe {
for x in 0..16 {
for y in 0..16 {
a.as_mut().overlay_at(&b, x * 4, y * 4);
}
}
});
assert_eq!(
a.as_ref().buffer,
include_bytes!("../test_results/4x3_at_out.buf")
);
}
#[bench]
fn overlay_4on4at(bench: &mut Bencher) {
let mut a: Image<_, 4> = Image::alloc(64, 64);
let b = Image::<&[u8], 4>::new(
4.try_into().unwrap(),
4.try_into().unwrap(),
*&include_bytes!("../test_data/4_4x4.imgbuf"),
);
bench.iter(|| unsafe {
for x in 0..16 {
for y in 0..16 {
a.as_mut().overlay_at(&b, x * 4, y * 4);
}
}
});
assert_eq!(
a.as_ref().buffer,
include_bytes!("../test_results/4x4_at_out.buf")
);
}
}