74 lines
2.4 KiB
Rust
74 lines
2.4 KiB
Rust
use std::fs;
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use criterion::{Criterion, Throughput};
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use gif::{Encoder, Frame, Repeat};
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use png;
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const DIR: &str = "benches/samples";
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fn main()
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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("rgb_frame");
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let dir = fs::read_dir(DIR).expect("Cant'r read dir:\n{}");
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for path in dir {
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let path = path.expect("Can't read path:\n{}").path();
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if path.extension().unwrap() != "png" {
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continue;
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}
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let mut reader = {
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let input = fs::File::open(&path).unwrap();
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let decoder = png::Decoder::new(input);
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decoder.read_info().unwrap()
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};
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let mut buf = vec![0; reader.output_buffer_size()];
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let info = reader.next_frame(&mut buf).unwrap();
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let (w, h, size) = {
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// could use try_into().unwrap() but probably no need
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(info.width as u16, info.height as u16, info.buffer_size())
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};
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//size might have to be adjusted for large images
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group
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.sample_size(50)
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.throughput(Throughput::Bytes(size as u64))
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.bench_function(path.file_name().unwrap().to_str().unwrap(),
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|b| {
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match info.color_type {
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png::ColorType::Rgb => b.iter(|| {
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Frame::from_rgb_speed(w, h, &mut buf[..size], 30)
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}),
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png::ColorType::Rgba => b.iter(|| {
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Frame::from_rgba_speed(w, h, &mut buf[..size], 30)
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}),
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c => {
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println!("Image has wrong color type: {:?}", c);
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}
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}
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});
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// actually write the image as a singe frame gif... while MSE can be used
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// for quality check, it might not be as good as visual inspection
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let mut encoder = {
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let output = fs::File::create(path.with_extension("gif")).unwrap();
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Encoder::new(output, w, h, &[]).unwrap()
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};
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encoder.set_repeat(Repeat::Finite(0)).unwrap();
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let frame = match info.color_type {
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png::ColorType::Rgb => Frame::from_rgb(w, h, &mut buf[..size]),
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png::ColorType::Rgba => Frame::from_rgba(w, h, &mut buf[..size]),
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_ => continue,
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};
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encoder.write_frame(&frame).unwrap();
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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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