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
87
|
// PpmdZip.h
#ifndef __COMPRESS_PPMD_ZIP_H
#define __COMPRESS_PPMD_ZIP_H
#include "../../../C/Alloc.h"
#include "../../../C/Ppmd8.h"
#include "../../Common/MyCom.h"
#include "../Common/CWrappers.h"
#include "../ICoder.h"
namespace NCompress {
namespace NPpmdZip {
static const UInt32 kBufSize = (1 << 20);
struct CBuf
{
Byte *Buf;
CBuf(): Buf(0) {}
~CBuf() { ::MidFree(Buf); }
bool Alloc()
{
if (!Buf)
Buf = (Byte *)::MidAlloc(kBufSize);
return (Buf != 0);
}
};
class CDecoder :
public ICompressCoder,
public CMyUnknownImp
{
CByteInBufWrap _inStream;
CBuf _outStream;
CPpmd8 _ppmd;
bool _fullFileMode;
public:
MY_UNKNOWN_IMP
STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
CDecoder(bool fullFileMode);
~CDecoder();
};
struct CEncProps
{
UInt32 MemSizeMB;
UInt32 ReduceSize;
int Order;
int Restor;
CEncProps()
{
MemSizeMB = (UInt32)(Int32)-1;
ReduceSize = (UInt32)(Int32)-1;
Order = -1;
Restor = -1;
}
void Normalize(int level);
};
class CEncoder :
public ICompressCoder,
public ICompressSetCoderProperties,
public CMyUnknownImp
{
CByteOutBufWrap _outStream;
CBuf _inStream;
CPpmd8 _ppmd;
CEncProps _props;
public:
MY_UNKNOWN_IMP1(ICompressSetCoderProperties)
STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
STDMETHOD(SetCoderProperties)(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps);
CEncoder();
~CEncoder();
};
}}
#endif
|
