aboutsummaryrefslogtreecommitdiff
path: root/vendor/image/benches/encode.rs
diff options
context:
space:
mode:
authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/image/benches/encode.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/image/benches/encode.rs')
-rw-r--r--vendor/image/benches/encode.rs134
1 files changed, 0 insertions, 134 deletions
diff --git a/vendor/image/benches/encode.rs b/vendor/image/benches/encode.rs
deleted file mode 100644
index 0ca4b2a..0000000
--- a/vendor/image/benches/encode.rs
+++ /dev/null
@@ -1,134 +0,0 @@
-extern crate criterion;
-
-use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
-use image::{codecs::bmp::BmpEncoder, codecs::jpeg::JpegEncoder, ColorType};
-
-use std::fs::File;
-use std::io::{BufWriter, Seek, SeekFrom, Write};
-
-trait Encoder {
- fn encode_raw(&self, into: &mut Vec<u8>, im: &[u8], dims: u32, color: ColorType);
- fn encode_bufvec(&self, into: &mut Vec<u8>, im: &[u8], dims: u32, color: ColorType);
- fn encode_file(&self, file: &File, im: &[u8], dims: u32, color: ColorType);
-}
-
-#[derive(Clone, Copy)]
-struct BenchDef {
- with: &'static dyn Encoder,
- name: &'static str,
- sizes: &'static [u32],
- colors: &'static [ColorType],
-}
-
-fn encode_all(c: &mut Criterion) {
- const BENCH_DEFS: &'static [BenchDef] = &[
- BenchDef {
- with: &Bmp,
- name: "bmp",
- sizes: &[100u32, 200, 400],
- colors: &[ColorType::L8, ColorType::Rgb8, ColorType::Rgba8],
- },
- BenchDef {
- with: &Jpeg,
- name: "jpeg",
- sizes: &[64u32, 128, 256],
- colors: &[ColorType::L8, ColorType::Rgb8, ColorType::Rgba8],
- },
- ];
-
- for definition in BENCH_DEFS {
- encode_definition(c, definition)
- }
-}
-
-criterion_group!(benches, encode_all);
-criterion_main!(benches);
-
-type BenchGroup<'a> = criterion::BenchmarkGroup<'a, criterion::measurement::WallTime>;
-
-/// Benchmarks encoding a zeroed image.
-///
-/// For compressed formats this is surely not representative of encoding a normal image but it's a
-/// start for benchmarking.
-fn encode_zeroed(group: &mut BenchGroup, with: &dyn Encoder, size: u32, color: ColorType) {
- let bytes = size as usize * usize::from(color.bytes_per_pixel());
- let im = vec![0; bytes * bytes];
-
- group.bench_with_input(
- BenchmarkId::new(format!("zero-{:?}-rawvec", color), size),
- &im,
- |b, image| {
- let mut v = vec![];
- with.encode_raw(&mut v, &im, size, color);
- b.iter(|| with.encode_raw(&mut v, image, size, color));
- },
- );
- group.bench_with_input(
- BenchmarkId::new(format!("zero-{:?}-bufvec", color), size),
- &im,
- |b, image| {
- let mut v = vec![];
- with.encode_raw(&mut v, &im, size, color);
- b.iter(|| with.encode_bufvec(&mut v, image, size, color));
- },
- );
- group.bench_with_input(
- BenchmarkId::new(format!("zero-{:?}-file", color), size),
- &im,
- |b, image| {
- let file = File::create("temp.bmp").unwrap();
- b.iter(|| with.encode_file(&file, image, size, color));
- },
- );
-}
-
-fn encode_definition(criterion: &mut Criterion, def: &BenchDef) {
- let mut group = criterion.benchmark_group(format!("encode-{}", def.name));
-
- for &color in def.colors {
- for &size in def.sizes {
- encode_zeroed(&mut group, def.with, size, color);
- }
- }
-}
-
-struct Bmp;
-
-struct Jpeg;
-
-trait EncoderBase {
- fn encode(&self, into: impl Write, im: &[u8], dims: u32, color: ColorType);
-}
-
-impl<T: EncoderBase> Encoder for T {
- fn encode_raw(&self, into: &mut Vec<u8>, im: &[u8], dims: u32, color: ColorType) {
- into.clear();
- self.encode(into, im, dims, color);
- }
-
- fn encode_bufvec(&self, into: &mut Vec<u8>, im: &[u8], dims: u32, color: ColorType) {
- into.clear();
- let buf = BufWriter::new(into);
- self.encode(buf, im, dims, color);
- }
-
- fn encode_file(&self, mut file: &File, im: &[u8], dims: u32, color: ColorType) {
- file.seek(SeekFrom::Start(0)).unwrap();
- let buf = BufWriter::new(file);
- self.encode(buf, im, dims, color);
- }
-}
-
-impl EncoderBase for Bmp {
- fn encode(&self, mut into: impl Write, im: &[u8], size: u32, color: ColorType) {
- let mut x = BmpEncoder::new(&mut into);
- x.encode(im, size, size, color).unwrap();
- }
-}
-
-impl EncoderBase for Jpeg {
- fn encode(&self, mut into: impl Write, im: &[u8], size: u32, color: ColorType) {
- let mut x = JpegEncoder::new(&mut into);
- x.encode(im, size, size, color).unwrap();
- }
-}