diff options
Diffstat (limited to 'vendor/exr/benches/pixel_format_conversion.rs')
-rw-r--r-- | vendor/exr/benches/pixel_format_conversion.rs | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/vendor/exr/benches/pixel_format_conversion.rs b/vendor/exr/benches/pixel_format_conversion.rs deleted file mode 100644 index 3d1ba93..0000000 --- a/vendor/exr/benches/pixel_format_conversion.rs +++ /dev/null @@ -1,119 +0,0 @@ -#[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; -use exr::io::Data; -use exr::block::samples::FromNativeSample; - -const F32_ZIPS_PATH: &'static str = "tests/images/valid/custom/crowskull/crow_zips.exr"; -const F32_UNCOMPRESSED_PATH: &'static str = "tests/images/valid/custom/crowskull/crow_uncompressed.exr"; -const F16_UNCOMPRESSED_PATH: &'static str = "tests/images/valid/custom/crowskull/crow_uncompressed_half.exr"; -const F16_ZIP_PATH: &'static str = "tests/images/valid/custom/crowskull/crow_zip_half.exr"; - -/// Read an image from an in-memory buffer into its native f32 format -fn read_f32_as_f32_uncompressed_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<f32>(bench, F32_UNCOMPRESSED_PATH, false); -} - -/// Read image and convert the samples to u32 (from native f32) -fn read_f32_as_u32_uncompressed_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<u32>(bench, F32_UNCOMPRESSED_PATH, false); -} - -/// f16 is not natively supported by CPUs, which introduces unique performance pitfalls -fn read_f32_as_f16_uncompressed_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<f16>(bench, F32_UNCOMPRESSED_PATH, false); -} - -fn read_f16_as_f16_uncompressed_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<f16>(bench, F16_UNCOMPRESSED_PATH, false); -} - -fn read_f16_as_f32_uncompressed_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<f32>(bench, F16_UNCOMPRESSED_PATH, false); -} - -fn read_f16_as_u32_uncompressed_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<u32>(bench, F16_UNCOMPRESSED_PATH, false); -} - - -fn read_f32_as_f16_zips_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<f16>(bench, F32_ZIPS_PATH, false); -} - -fn read_f16_as_f32_zip_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<f32>(bench, F16_ZIP_PATH, false); -} - -fn read_f32_as_f16_zips_nthreads(bench: &mut Bencher) { - bench_read_image_rgba_as::<f16>(bench, F32_ZIPS_PATH, true); -} - -fn read_f16_as_f32_zip_nthreads(bench: &mut Bencher) { - bench_read_image_rgba_as::<f32>(bench, F16_ZIP_PATH, true); -} - -fn read_f32_as_f32_zips_nthreads(bench: &mut Bencher) { - bench_read_image_rgba_as::<f32>(bench, F32_ZIPS_PATH, true); -} - -fn read_f16_as_f16_zip_nthreads(bench: &mut Bencher) { - bench_read_image_rgba_as::<f16>(bench, F16_ZIP_PATH, true); -} - -fn read_f32_as_f32_zips_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<f32>(bench, F32_ZIPS_PATH, false); -} - -fn read_f16_as_f16_zip_1thread(bench: &mut Bencher) { - bench_read_image_rgba_as::<f16>(bench, F16_ZIP_PATH, false); -} - -fn bench_read_image_rgba_as<T>(bench: &mut Bencher, path: &str, parallel: bool) { - let mut file = fs::read(path).unwrap(); - bencher::black_box(&mut file); - - bench.iter(||{ - let image = read_file_from_memory_as::<f16>(file.as_slice(), parallel); - bencher::black_box(image); - }) -} - -fn read_file_from_memory_as<T>(file: &[u8], parallel: bool) -> RgbaImage<PixelVec<(T, T, T, T)>> - where T: FromNativeSample -{ - let read = exr::prelude::read() - .no_deep_data().largest_resolution_level() - .rgba_channels(PixelVec::<(T, T, T, T)>::constructor, PixelVec::set_pixel) - .first_valid_layer().all_attributes(); - - let read = if parallel { read } else { read.non_parallel() }; - read.from_buffered(Cursor::new(file)).unwrap() -} - -benchmark_group!(pixel_format_conversion, - read_f32_as_f32_uncompressed_1thread, - read_f32_as_u32_uncompressed_1thread, - read_f32_as_f16_uncompressed_1thread, - read_f32_as_f16_zips_1thread, - read_f32_as_f16_zips_nthreads, - read_f32_as_f32_zips_nthreads, - read_f32_as_f32_zips_1thread, - - read_f16_as_f16_uncompressed_1thread, - read_f16_as_u32_uncompressed_1thread, - read_f16_as_f32_uncompressed_1thread, - read_f16_as_f32_zip_1thread, - read_f16_as_f32_zip_nthreads, - read_f16_as_f16_zip_nthreads, - read_f16_as_f16_zip_1thread, -); - -benchmark_main!(pixel_format_conversion);
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