xevion/easy7zip
1
0
Fork 0
mirror of https://github.com/Xevion/easy7zip.git synced 2026-01-31 12:24:08 -06:00
Code Issues Packages Projects Releases Wiki Activity

17.00

Browse Source
This commit is contained in:
Igor Pavlov
2017-04-30 00:00:00 +00:00
committed by Kornel
parent 603abd5528
commit 2efa10565a
442 changed files with 15479 additions and 8525 deletions
Download Patch File Download Diff File Expand all files Collapse all files
CPP/7zip/Compress/ImplodeDecoder.h
+39 -22
View File
@@ -7,48 +7,65 @@
#include "../ICoder.h"
#include "ImplodeHuffmanDecoder.h"
#include "../Common/InBuffer.h"
#include "BitlDecoder.h"
#include "LzOutWindow.h"
namespace NCompress {
namespace NImplode {
namespace NDecoder {
typedef NBitl::CDecoder<CInBuffer> CInBit;
const unsigned kNumHuffmanBits = 16;
const unsigned kMaxHuffTableSize = 1 << 8;
class CHuffmanDecoder
{
UInt32 _limits[kNumHuffmanBits + 1];
UInt32 _poses[kNumHuffmanBits + 1];
Byte _symbols[kMaxHuffTableSize];
public:
bool Build(const Byte *lens, unsigned numSymbols) throw();
UInt32 Decode(CInBit *inStream) const throw();
};
class CCoder:
public ICompressCoder,
public ICompressSetDecoderProperties2,
public ICompressSetFinishMode,
public ICompressGetInStreamProcessedSize,
public CMyUnknownImp
{
CLzOutWindow m_OutWindowStream;
NBitl::CDecoder<CInBuffer> m_InBitStream;
CLzOutWindow _outWindowStream;
CInBit _inBitStream;
NImplode::NHuffman::CDecoder m_LiteralDecoder;
NImplode::NHuffman::CDecoder m_LengthDecoder;
NImplode::NHuffman::CDecoder m_DistanceDecoder;
CHuffmanDecoder _litDecoder;
CHuffmanDecoder _lenDecoder;
CHuffmanDecoder _distDecoder;
bool m_BigDictionaryOn;
bool m_LiteralsOn;
Byte _flags;
bool _fullStreamMode;
int m_NumDistanceLowDirectBits;
UInt32 m_MinMatchLength;
bool ReadLevelItems(NImplode::NHuffman::CDecoder &table, Byte *levels, int numLevelItems);
bool ReadTables();
void DeCodeLevelTable(Byte *newLevels, int numLevels);
public:
CCoder();
MY_UNKNOWN_IMP1(ICompressSetDecoderProperties2)
// void ReleaseStreams();
bool BuildHuff(CHuffmanDecoder &table, unsigned numSymbols);
HRESULT CodeReal(ISequentialInStream *inStream, ISequentialOutStream *outStream,
const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
public:
MY_UNKNOWN_IMP3(
ICompressSetDecoderProperties2,
ICompressSetFinishMode,
ICompressGetInStreamProcessedSize)
STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size);
STDMETHOD(SetFinishMode)(UInt32 finishMode);
STDMETHOD(GetInStreamProcessedSize)(UInt64 *value);
CCoder();
};
}}}