blob: 0e542febf765ab8c095121a83eb64fe09842fffa (
plain)
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
|
/*
* Copyright (C) 2007-2019 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef BU_LZMA_H
#define BU_LZMA_H
#include <stdint.h>
#include "bu/filter.h"
#include "bu/autoconfig.h"
#ifdef BU_HAS_LZMA
namespace Bu
{
/**
* Provides XZ compression and decompression, both LZMA1 (LzmaAlone) as
* well as the newer LZMA2 (xz) format. This uses .xz by default.
*
*@ingroup Streams
*@ingroup Compression
*/
class Lzma : public Bu::Filter
{
public:
enum Format
{
Xz = 0x01,
LzmaAlone = 0x02,
};
Lzma( Bu::Stream &rNext, int nCompression=6, Format eFmt=Xz );
virtual ~Lzma();
virtual void start();
virtual Bu::size stop();
virtual Bu::size read( void *pBuf, Bu::size nBytes );
virtual Bu::size write( const void *pBuf, Bu::size nBytes );
virtual bool isOpen();
virtual bool isEos();
Bu::size getCompressedSize();
private:
void lzmaError( int code );
void *prState;
bool bReading;
int nCompression;
char *pBuf;
uint32_t nBufSize;
Bu::size sTotalOut;
Format eFmt;
bool bEos;
};
}
#endif
#endif
|
