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4.33 beta

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This commit is contained in:
Igor Pavlov
2006-02-05 00:00:00 +00:00
committed by Kornel Lesiński
parent e8d0636d7a
commit 02516d3fce
80 changed files with 2185 additions and 3957 deletions
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139
7zip/Compress/Deflate/DeflateEncoder.h
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@@ -18,25 +18,10 @@ namespace NEncoder {
struct CCodeValue
{
Byte Flag;
union
{
Byte Imm;
Byte Len;
};
UInt16 Len;
UInt16 Pos;
};
class COnePosMatches
{
public:
UInt16 *MatchDistances;
UInt16 LongestMatchLength;
UInt16 LongestMatchDistance;
void Init(UInt16 *matchDistances)
{
MatchDistances = matchDistances;
};
void SetAsLiteral() { Len = (1 << 15); }
bool IsLiteral() const { return ((Len & (1 << 15)) != 0); }
};
struct COptimal
@@ -46,76 +31,107 @@ struct COptimal
UInt16 BackPrev;
};
const int kNumOpts = 0x1000;
const UInt32 kNumOptsBase = 1 << 12;
const UInt32 kNumOpts = kNumOptsBase + kMatchMaxLen;
class CCoder;
struct CTables: public CLevels
{
bool UseSubBlocks;
bool StoreMode;
bool StaticMode;
UInt32 BlockSizeRes;
UInt32 m_Pos;
void InitStructures();
};
class CCoder
{
UInt32 m_FinderPos;
COptimal m_Optimum[kNumOpts];
CMyComPtr<IMatchFinder> m_MatchFinder;
NStream::NLSBF::CEncoder m_OutStream;
NStream::NLSBF::CReverseEncoder m_ReverseOutStream;
NCompression::NHuffman::CEncoder m_MainCoder;
NCompression::NHuffman::CEncoder m_DistCoder;
NCompression::NHuffman::CEncoder m_LevelCoder;
Byte m_LastLevels[kMaxTableSize64];
UInt32 m_ValueIndex;
public:
CCodeValue *m_Values;
UInt32 m_OptimumEndIndex;
UInt32 m_OptimumCurrentIndex;
UInt32 m_AdditionalOffset;
UInt32 m_LongestMatchLength;
UInt32 m_LongestMatchDistance;
UInt16 *m_MatchDistances;
UInt32 m_NumFastBytes;
Byte m_LiteralPrices[256];
Byte m_LenPrices[kNumLenCombinations32];
Byte m_PosPrices[kDistTableSize64];
UInt32 m_CurrentBlockUncompressedSize;
COnePosMatches *m_OnePosMatchesArray;
UInt16 *m_OnePosMatchesMemory;
UInt16 *m_DistanceMemory;
UInt32 m_Pos;
UInt64 m_BlockStartPostion;
int m_NumPasses;
int m_NumDivPasses;
bool m_CheckStatic;
bool m_IsMultiPass;
UInt32 m_ValueBlockSize;
bool m_Created;
bool _deflate64Mode;
UInt32 m_NumLenCombinations;
UInt32 m_MatchMaxLen;
const Byte *m_LenStart;
const Byte *m_LenDirectBits;
HRESULT Create();
void Free();
bool m_Created;
bool m_Deflate64Mode;
void GetBacks(UInt32 aPos);
NCompression::NHuffman::CEncoder MainCoder;
NCompression::NHuffman::CEncoder DistCoder;
NCompression::NHuffman::CEncoder LevelCoder;
void ReadGoodBacks();
Byte m_LevelLevels[kLevelTableSize];
int m_NumLitLenLevels;
int m_NumDistLevels;
UInt32 m_NumLevelCodes;
UInt32 m_ValueIndex;
bool m_SecondPass;
UInt32 m_AdditionalOffset;
UInt32 m_OptimumEndIndex;
UInt32 m_OptimumCurrentIndex;
Byte m_LiteralPrices[256];
Byte m_LenPrices[kNumLenSymbolsMax];
Byte m_PosPrices[kDistTableSize64];
CLevels m_NewLevels;
UInt32 BlockSizeRes;
CTables *m_Tables;
COptimal m_Optimum[kNumOpts];
void GetMatches();
void MovePos(UInt32 num);
UInt32 Backward(UInt32 &backRes, UInt32 cur);
UInt32 GetOptimal(UInt32 &backRes);
void InitStructures();
void CodeLevelTable(Byte *newLevels, int numLevels, bool codeMode);
int WriteTables(bool writeMode, bool finalBlock);
void CopyBackBlockOp(UInt32 distance, UInt32 length);
void CodeLevelTable(NStream::NLSBF::CEncoder *outStream, const Byte *levels, int numLevels);
void MakeTables();
UInt32 GetLzBlockPrice();
void TryBlock(bool staticMode);
UInt32 TryDynBlock(int tableIndex, UInt32 numPasses);
UInt32 TryFixedBlock(int tableIndex);
void SetPrices(const CLevels &levels);
void WriteBlock();
void WriteDynBlock(bool finalBlock);
void WriteFixedBlock(bool finalBlock);
HRESULT Create();
void Free();
void WriteStoreBlock(UInt32 blockSize, UInt32 additionalOffset, bool finalBlock);
void WriteTables(bool writeMode, bool finalBlock);
void WriteBlockData(bool writeMode, bool finalBlock);
void CCoder::ReleaseStreams()
void ReleaseStreams()
{
// m_MatchFinder.ReleaseStream();
m_OutStream.ReleaseStream();
@@ -129,6 +145,9 @@ class CCoder
};
friend class CCoderReleaser;
UInt32 GetBlockPrice(int tableIndex, int numDivPasses);
void CodeBlock(int tableIndex, bool finalBlock);
public:
CCoder(bool deflate64Mode = false);
~CCoder();