1 files changed, 41 insertions, 0 deletions
diff --git a/vendor/jpeg-decoder/benches/decoding_benchmark.rs b/vendor/jpeg-decoder/benches/decoding_benchmark.rs
new file mode 100644
index 0000000..fb8282d
--- /dev/null
+++ b/vendor/jpeg-decoder/benches/decoding_benchmark.rs
@@ -0,0 +1,41 @@
+extern crate criterion;
+extern crate jpeg_decoder;
+
+use criterion::{black_box, Criterion};
+
+use jpeg_decoder as jpeg;
+use jpeg_decoder::ImageInfo;
+
+fn read_image(image: &[u8]) -> Vec<u8> {
+    jpeg::Decoder::new(black_box(image)).decode().unwrap()
+}
+
+fn read_metadata(image: &[u8]) -> ImageInfo {
+    let mut decoder = jpeg::Decoder::new(black_box(image));
+    decoder.read_info().unwrap();
+    decoder.info().unwrap()
+}
+
+fn main() {
+    let mut c = Criterion::default().configure_from_args();
+    c.bench_function("decode a 512x512 JPEG", |b| b.iter(|| {
+        read_image(include_bytes!("tower.jpg"))
+    }));
+
+    c.bench_function("decode a 512x512 progressive JPEG", |b| b.iter(|| {
+        read_image(include_bytes!("tower_progressive.jpg"))
+    }));
+
+    c.bench_function("decode a 512x512 grayscale JPEG", |b| b.iter(|| {
+        read_image(include_bytes!("tower_grayscale.jpg"))
+    }));
+
+    c.bench_function("extract metadata from an image", |b| b.iter(|| {
+        read_metadata(include_bytes!("tower.jpg"))
+    }));
+    
+    c.bench_function("decode a 3072x2048 RGB Lossless JPEG", |b| b.iter(|| {
+        read_image(include_bytes!("../tests/reftest/images/lossless/jpeg_lossless_sel1-rgb.jpg"))
+    }));
+    c.final_summary();
+}
+\ No newline at end of file