1 files changed, 81 insertions, 0 deletions
diff --git a/vendor/gif/benches/decode.rs b/vendor/gif/benches/decode.rs
new file mode 100644
index 0000000..8272cee
--- /dev/null
+++ b/vendor/gif/benches/decode.rs
@@ -0,0 +1,81 @@
+use criterion::{black_box, BenchmarkId, BenchmarkGroup, Criterion, Throughput, measurement::Measurement};
+use gif::Decoder;
+
+fn read_image(image: &[u8]) -> Option<Vec<u8>> {
+    let decoder = Decoder::new(black_box(image));
+    //decoder.set_param(gif::ColorOutput::RGBA);
+    let mut reader = decoder.unwrap();
+
+    while let Some(_) = reader.next_frame_info().unwrap() {
+        let mut v = vec![0; reader.buffer_size()];
+        reader.fill_buffer(&mut v).unwrap();
+        return Some(v);
+    }
+    None
+}
+
+fn read_metadata(image: &[u8]) {
+    let decoder = Decoder::new(black_box(image));
+    decoder.unwrap();
+}
+
+fn main() {
+    struct BenchDef {
+        data: &'static [u8],
+        id: &'static str,
+        sample_size: usize,
+    }
+
+    fn run_bench_def<M: Measurement>(group: &mut BenchmarkGroup<M>, def: BenchDef) {
+        group
+            .sample_size(def.sample_size)
+            .throughput(Throughput::Bytes(def.data.len() as u64))
+            .bench_with_input(
+                BenchmarkId::new(def.id, def.data.len()),
+                def.data,
+                |b, input| {
+                    b.iter(|| read_image(input))
+                }
+            );
+    }
+
+    let mut c = Criterion::default().configure_from_args();
+    let mut group = c.benchmark_group("gif");
+
+    run_bench_def(&mut group, BenchDef {
+        data: include_bytes!("note.gif"),
+        id: "note.gif",
+        sample_size: 100,
+    });
+
+    run_bench_def(&mut group, BenchDef {
+        data: include_bytes!("photo.gif"),
+        id: "photo.gif",
+        sample_size: 20,
+    });
+
+    run_bench_def(&mut group, BenchDef {
+        data: include_bytes!(concat!(env!("CARGO_MANIFEST_DIR"), "/tests/samples/sample_1.gif")),
+        id: "sample_1.gif",
+        sample_size: 100,
+    });
+
+    run_bench_def(&mut group, BenchDef {
+        data: include_bytes!(concat!(env!("CARGO_MANIFEST_DIR"), "/tests/samples/sample_big.gif")),
+        id: "sample_big.gif",
+        sample_size: 20,
+    });
+
+    group
+        .bench_with_input(
+            "extract-metadata-note",
+            include_bytes!("note.gif"),
+            |b, input| {
+                b.iter(|| read_metadata(input))
+            }
+        );
+
+    group.finish();
+
+    c.final_summary();
+}