denyhosts/clamav/libclamav_rust/.cargo/vendor/tiff/benches/lzw.rs

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2023-01-14 18:28:39 +08:00
extern crate criterion;
extern crate tiff;
use criterion::{
black_box, measurement::Measurement, BenchmarkGroup, BenchmarkId, Criterion, Throughput,
};
use tiff::decoder::Decoder;
fn read_image(image: &[u8]) {
let image = std::io::Cursor::new(image);
let decoder = Decoder::new(black_box(image));
let mut reader = decoder.unwrap();
while {
reader.read_image().unwrap();
reader.more_images()
} {}
}
fn main() {
struct BenchDef {
data: &'static [u8],
id: &'static str,
sample_size: usize,
}
fn run_bench_def<M: Measurement>(group: &mut BenchmarkGroup<M>, def: BenchDef) {
group
.sample_size(def.sample_size)
.throughput(Throughput::Bytes(def.data.len() as u64))
.bench_with_input(
BenchmarkId::new(def.id, def.data.len()),
def.data,
|b, input| b.iter(|| read_image(input)),
);
}
let mut c = Criterion::default().configure_from_args();
let mut group = c.benchmark_group("tiff-lzw");
macro_rules! data_file {
($name:literal) => {
include_bytes!(concat!(env!("CARGO_MANIFEST_DIR"), $name))
};
}
run_bench_def(
&mut group,
BenchDef {
data: data_file!("/tests/images/issue_69_lzw.tiff"),
id: "issue-69-lzw.tif",
sample_size: 500,
},
);
run_bench_def(
&mut group,
BenchDef {
data: data_file!("/tests/benches/kodim02-lzw.tif"),
id: "kodim02-lzw.tif",
sample_size: 20,
},
);
run_bench_def(
&mut group,
BenchDef {
data: data_file!("/tests/benches/kodim07-lzw.tif"),
id: "kodim07-lzw.tif",
sample_size: 20,
},
);
run_bench_def(
&mut group,
BenchDef {
data: data_file!("/tests/benches/Transparency-lzw.tif"),
id: "Transparency-lzw.tif",
sample_size: 20,
},
);
}