41 lines
1.2 KiB
Rust
41 lines
1.2 KiB
Rust
extern crate criterion;
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extern crate jpeg_decoder;
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use criterion::{black_box, Criterion};
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use jpeg_decoder as jpeg;
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use jpeg_decoder::ImageInfo;
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fn read_image(image: &[u8]) -> Vec<u8> {
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jpeg::Decoder::new(black_box(image)).decode().unwrap()
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}
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fn read_metadata(image: &[u8]) -> ImageInfo {
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let mut decoder = jpeg::Decoder::new(black_box(image));
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decoder.read_info().unwrap();
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decoder.info().unwrap()
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}
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fn main() {
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let mut c = Criterion::default().configure_from_args();
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c.bench_function("decode a 512x512 JPEG", |b| b.iter(|| {
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read_image(include_bytes!("tower.jpg"))
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}));
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c.bench_function("decode a 512x512 progressive JPEG", |b| b.iter(|| {
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read_image(include_bytes!("tower_progressive.jpg"))
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}));
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c.bench_function("decode a 512x512 grayscale JPEG", |b| b.iter(|| {
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read_image(include_bytes!("tower_grayscale.jpg"))
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}));
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c.bench_function("extract metadata from an image", |b| b.iter(|| {
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read_metadata(include_bytes!("tower.jpg"))
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}));
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c.bench_function("decode a 3072x2048 RGB Lossless JPEG", |b| b.iter(|| {
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read_image(include_bytes!("../tests/reftest/images/lossless/jpeg_lossless_sel1-rgb.jpg"))
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}));
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c.final_summary();
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} |