Initial vendor packages

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

vendor/weezl/benches/msb8.rs

@@ -0,0 +1,54 @@
+extern crate criterion;
+extern crate weezl;
+
+use criterion::{black_box, criterion_group, criterion_main, BenchmarkId, Criterion, Throughput};
+use std::fs;
+use weezl::{decode::Decoder, BitOrder, LzwStatus};
+
+pub fn criterion_benchmark(c: &mut Criterion, file: &str) {
+    let data = fs::read(file).expect("Benchmark input not found");
+    let mut group = c.benchmark_group("msb-8");
+    let id = BenchmarkId::new(file, data.len());
+    let mut outbuf = vec![0; 1 << 26]; // 64MB, what wuff uses..
+    let mut decode_once = |data: &[u8]| {
+        let mut decoder = Decoder::new(BitOrder::Msb, 8);
+        let mut written = 0;
+        let outbuf = outbuf.as_mut_slice();
+        let mut data = data;
+        loop {
+            let result = decoder.decode_bytes(data, &mut outbuf[..]);
+            let done = result.status.expect("Error");
+            data = &data[result.consumed_in..];
+            written += result.consumed_out;
+            black_box(&outbuf[..result.consumed_out]);
+            if let LzwStatus::Done = done {
+                break;
+            }
+            if let LzwStatus::NoProgress = done {
+                panic!("Need to make progress");
+            }
+        }
+        written
+    };
+    group.throughput(Throughput::Bytes(decode_once(&data) as u64));
+    group.bench_with_input(id, &data, |b, data| {
+        b.iter(|| {
+            decode_once(data);
+        })
+    });
+}
+
+pub fn bench_toml(c: &mut Criterion) {
+    criterion_benchmark(c, "benches/Cargo-8-msb.lzw");
+}
+
+pub fn bench_binary(c: &mut Criterion) {
+    criterion_benchmark(c, "benches/binary-8-msb.lzw");
+}
+
+pub fn bench_lib(c: &mut Criterion) {
+    criterion_benchmark(c, "benches/lib-8-msb.lzw");
+}
+
+criterion_group!(benches, bench_toml, bench_binary, bench_lib);
+criterion_main!(benches);