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