Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

vendor/tiff/benches/lzw.rs

@@ -0,0 +1,82 @@
+extern crate criterion;
+extern crate tiff;
+
+use criterion::{
+    black_box, measurement::Measurement, BenchmarkGroup, BenchmarkId, Criterion, Throughput,
+};
+use tiff::decoder::Decoder;
+
+fn read_image(image: &[u8]) {
+    let image = std::io::Cursor::new(image);
+    let decoder = Decoder::new(black_box(image));
+    let mut reader = decoder.unwrap();
+
+    while {
+        reader.read_image().unwrap();
+        reader.more_images()
+    } {}
+}
+
+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("tiff-lzw");
+
+    macro_rules! data_file {
+        ($name:literal) => {
+            include_bytes!(concat!(env!("CARGO_MANIFEST_DIR"), $name))
+        };
+    }
+
+    run_bench_def(
+        &mut group,
+        BenchDef {
+            data: data_file!("/tests/images/issue_69_lzw.tiff"),
+            id: "issue-69-lzw.tif",
+            sample_size: 500,
+        },
+    );
+
+    run_bench_def(
+        &mut group,
+        BenchDef {
+            data: data_file!("/tests/benches/kodim02-lzw.tif"),
+            id: "kodim02-lzw.tif",
+            sample_size: 20,
+        },
+    );
+
+    run_bench_def(
+        &mut group,
+        BenchDef {
+            data: data_file!("/tests/benches/kodim07-lzw.tif"),
+            id: "kodim07-lzw.tif",
+            sample_size: 20,
+        },
+    );
+
+    run_bench_def(
+        &mut group,
+        BenchDef {
+            data: data_file!("/tests/benches/Transparency-lzw.tif"),
+            id: "Transparency-lzw.tif",
+            sample_size: 20,
+        },
+    );
+}