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// PpmdZip.h
// 2010-03-11 : Igor Pavlov : Public domain
#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();
};
class CEncoder :
public ICompressCoder,
public CMyUnknownImp
{
CByteOutBufWrap _outStream;
CBuf _inStream;
CPpmd8 _ppmd;
UInt32 _usedMemInMB;
unsigned _order;
unsigned _restor;
public:
MY_UNKNOWN_IMP
STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
HRESULT SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps);
CEncoder();
~CEncoder();
};
}}
#endif
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