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