denyhosts/clamav/libclamav_rust/.cargo/vendor/exr/benches/read.rs

88 lines
2.7 KiB
Rust

#[macro_use]
extern crate bencher;
extern crate exr;
use exr::prelude::*;
use bencher::Bencher;
use std::fs;
use std::io::Cursor;
use exr::image::pixel_vec::PixelVec;
/// Read uncompressed (always single core)
fn read_single_image_uncompressed_rgba(bench: &mut Bencher) {
bench.iter(||{
let path = "tests/images/valid/custom/crowskull/crow_uncompressed.exr";
let image = read_all_rgba_layers_from_file(
path, PixelVec::<(f16,f16,f16,f16)>::constructor, PixelVec::set_pixel
).unwrap();
bencher::black_box(image);
})
}
/// Read from in-memory in parallel
fn read_single_image_uncompressed_from_buffer_rgba(bench: &mut Bencher) {
let file = fs::read("tests/images/valid/custom/crowskull/crow_uncompressed.exr").unwrap();
bench.iter(||{
let image = exr::prelude::read()
.no_deep_data().largest_resolution_level()
.rgba_channels(PixelVec::<(f16,f16,f16,f16)>::constructor, PixelVec::set_pixel)
.all_layers().all_attributes()
.from_buffered(Cursor::new(file.as_slice())).unwrap();
bencher::black_box(image);
})
}
/// Read with multi-core zip decompression
fn read_single_image_zips_rgba(bench: &mut Bencher) {
bench.iter(||{
let path = "tests/images/valid/custom/crowskull/crow_zips.exr";
let image = read_all_rgba_layers_from_file(
path, PixelVec::<(f16,f16,f16,f16)>::constructor, PixelVec::set_pixel
).unwrap();
bencher::black_box(image);
})
}
/// Read with multi-core RLE decompression
fn read_single_image_rle_all_channels(bench: &mut Bencher) {
bench.iter(||{
let path = "tests/images/valid/custom/crowskull/crow_rle.exr";
let image = read_all_flat_layers_from_file(path).unwrap();
bencher::black_box(image);
})
}
/// Read without multi-core ZIP decompression
fn read_single_image_non_parallel_zips_rgba(bench: &mut Bencher) {
bench.iter(||{
let path = "tests/images/valid/custom/crowskull/crow_zips.exr";
let image = exr::prelude::read()
.no_deep_data().largest_resolution_level()
.rgba_channels(PixelVec::<(f16,f16,f16,f16)>::constructor, PixelVec::set_pixel)
.all_layers().all_attributes()
.non_parallel()
.from_file(path).unwrap();
bencher::black_box(image);
})
}
benchmark_group!(read,
read_single_image_uncompressed_from_buffer_rgba,
read_single_image_uncompressed_rgba,
read_single_image_zips_rgba,
read_single_image_rle_all_channels,
read_single_image_non_parallel_zips_rgba
);
benchmark_main!(read);