1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
// compiling some tests will trigger unused function warnings even though other tests use them
#![allow(dead_code)]
use std::io::{Read as _, Write as _};
pub mod gzip {
use flate2::{read::GzDecoder, write::GzEncoder, Compression};
use super::*;
pub fn encode(bytes: impl AsRef<[u8]>) -> Vec<u8> {
let mut encoder = GzEncoder::new(Vec::new(), Compression::fast());
encoder.write_all(bytes.as_ref()).unwrap();
encoder.finish().unwrap()
}
pub fn decode(bytes: impl AsRef<[u8]>) -> Vec<u8> {
let mut decoder = GzDecoder::new(bytes.as_ref());
let mut buf = Vec::new();
decoder.read_to_end(&mut buf).unwrap();
buf
}
}
pub mod deflate {
use flate2::{read::ZlibDecoder, write::ZlibEncoder, Compression};
use super::*;
pub fn encode(bytes: impl AsRef<[u8]>) -> Vec<u8> {
let mut encoder = ZlibEncoder::new(Vec::new(), Compression::fast());
encoder.write_all(bytes.as_ref()).unwrap();
encoder.finish().unwrap()
}
pub fn decode(bytes: impl AsRef<[u8]>) -> Vec<u8> {
let mut decoder = ZlibDecoder::new(bytes.as_ref());
let mut buf = Vec::new();
decoder.read_to_end(&mut buf).unwrap();
buf
}
}
pub mod brotli {
use ::brotli::{reader::Decompressor as BrotliDecoder, CompressorWriter as BrotliEncoder};
use super::*;
pub fn encode(bytes: impl AsRef<[u8]>) -> Vec<u8> {
let mut encoder = BrotliEncoder::new(
Vec::new(),
8 * 1024, // 32 KiB buffer
3, // BROTLI_PARAM_QUALITY
22, // BROTLI_PARAM_LGWIN
);
encoder.write_all(bytes.as_ref()).unwrap();
encoder.flush().unwrap();
encoder.into_inner()
}
pub fn decode(bytes: impl AsRef<[u8]>) -> Vec<u8> {
let mut decoder = BrotliDecoder::new(bytes.as_ref(), 8_096);
let mut buf = Vec::new();
decoder.read_to_end(&mut buf).unwrap();
buf
}
}
pub mod zstd {
use ::zstd::stream::{read::Decoder, write::Encoder};
use super::*;
pub fn encode(bytes: impl AsRef<[u8]>) -> Vec<u8> {
let mut encoder = Encoder::new(Vec::new(), 3).unwrap();
encoder.write_all(bytes.as_ref()).unwrap();
encoder.finish().unwrap()
}
pub fn decode(bytes: impl AsRef<[u8]>) -> Vec<u8> {
let mut decoder = Decoder::new(bytes.as_ref()).unwrap();
let mut buf = Vec::new();
decoder.read_to_end(&mut buf).unwrap();
buf
}
}
|
