benchmarks comparing the rust image processing ecosystem
remove allocations
| -rw-r--r-- | benches/resizing.rs | 20 | ||||
| -rw-r--r-- | resizing.svg | 2 |
2 files changed, 12 insertions, 10 deletions
diff --git a/benches/resizing.rs b/benches/resizing.rs index 18ad709..8facfc9 100644 --- a/benches/resizing.rs +++ b/benches/resizing.rs @@ -9,10 +9,12 @@ macro_rules! scale_opencv { ($name:ident => { scale($alg:literal) }) => { fn $name() { opencv::core::set_num_threads(1).unwrap(); - let mut data = iai::black_box(include_bytes!("../data.imgbuf").to_vec()) - .array_chunks::<3>() - .flat_map(|&[r, g, b]| [b, g, r]) - .collect::<Vec<_>>(); + let mut data = iai::black_box( + include_bytes!("../data.imgbuf") + .array_chunks::<3>() + .flat_map(|&[r, g, b]| [b, g, r]) + .collect::<Vec<_>>(), + ); let mut o = unsafe { Mat::new_rows_cols(SIZE as i32, SIZE as i32, CV_8UC3).unwrap() }; opencv::imgproc::resize( &unsafe { @@ -46,9 +48,9 @@ macro_rules! scale_fimg { fn $name() { #[allow(unused_mut)] let mut img = Image::<_, 3>::build(SIZE, SIZE) - .buf(iai::black_box(include_bytes!("../data.imgbuf").to_vec())); + .buf(&iai::black_box(include_bytes!("../data.imgbuf"))[..]); img.scale::<fimg::scale::$alg>(TO, TO); - iai::black_box(img); + iai::black_box(&img); } }; } @@ -57,7 +59,7 @@ macro_rules! scale_resize { ($name:ident => { scale($alg: ident) }) => { fn $name() { use rgb::FromSlice; - let src = iai::black_box(include_bytes!("../data.imgbuf").to_vec()); + let src = iai::black_box(include_bytes!("../data.imgbuf").as_rgb()); let mut dst = vec![0; TO as usize * TO as usize * 3]; resize::new( SIZE as usize, @@ -68,7 +70,7 @@ macro_rules! scale_resize { resize::Type::$alg, ) .unwrap() - .resize(src.as_rgb(), dst.as_rgb_mut()) + .resize(src, dst.as_rgb_mut()) .unwrap(); } }; @@ -116,5 +118,5 @@ iai::main!( bicubic_fimg, bicubic_img, bicubic_resize, - bicubic_opencv + bicubic_opencv, ); diff --git a/resizing.svg b/resizing.svg index faa65ea..2038e40 100644 --- a/resizing.svg +++ b/resizing.svg @@ -1 +1 @@ -<svg xmlns="http://www.w3.org/2000/svg" width="480" height="480"><path fill="#0d1117" d="M0 0h480v480H0z"/><path fill="none" stroke="#1F2430" 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