94 lines
2.3 KiB
Rust
94 lines
2.3 KiB
Rust
use criterion::{measurement::Measurement, BenchmarkGroup, BenchmarkId, Criterion, Throughput};
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use gif::Decoder;
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use std::hint::black_box;
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fn read_image(image: &[u8]) -> Option<Vec<u8>> {
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let decoder = Decoder::new(black_box(image));
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//decoder.set_param(gif::ColorOutput::RGBA);
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let mut reader = decoder.unwrap();
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if reader.next_frame_info().unwrap().is_some() {
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let mut v = vec![0; reader.buffer_size()];
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reader.fill_buffer(&mut v).unwrap();
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Some(v)
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} else {
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None
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}
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}
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fn read_metadata(image: &[u8]) {
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let decoder = Decoder::new(black_box(image));
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decoder.unwrap();
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}
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fn main() {
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struct BenchDef {
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data: &'static [u8],
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id: &'static str,
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sample_size: usize,
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}
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fn run_bench_def<M: Measurement>(group: &mut BenchmarkGroup<'_, M>, def: BenchDef) {
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group
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.sample_size(def.sample_size)
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.throughput(Throughput::Bytes(def.data.len() as u64))
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.bench_with_input(
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BenchmarkId::new(def.id, def.data.len()),
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def.data,
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|b, input| {
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b.iter(|| read_image(input));
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},
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);
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}
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let mut c = Criterion::default().configure_from_args();
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let mut group = c.benchmark_group("gif");
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run_bench_def(
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&mut group,
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BenchDef {
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data: include_bytes!("note.gif"),
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id: "note.gif",
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sample_size: 100,
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},
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);
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run_bench_def(
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&mut group,
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BenchDef {
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data: include_bytes!("photo.gif"),
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id: "photo.gif",
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sample_size: 20,
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},
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);
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run_bench_def(
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&mut group,
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BenchDef {
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data: include_bytes!("../tests/samples/sample_1.gif"),
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id: "sample_1.gif",
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sample_size: 100,
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},
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);
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run_bench_def(
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&mut group,
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BenchDef {
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data: include_bytes!("../tests/samples/sample_big.gif"),
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id: "sample_big.gif",
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sample_size: 20,
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},
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);
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group.bench_with_input(
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"extract-metadata-note",
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include_bytes!("note.gif"),
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|b, input| {
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b.iter(|| read_metadata(input));
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},
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);
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group.finish();
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c.final_summary();
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}
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