MdeModulePkg Lzma: Update LZMA SDK version to 18.05

[mirror_edk2.git] / IntelFrameworkModulePkg / Library / LzmaCustomDecompressLib / Sdk / C / LzFind.h

/* LzFind.h -- Match finder for LZ algorithms\r
2015-10-15 : Igor Pavlov : Public domain */\r
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#ifndef __LZ_FIND_H\r
#define __LZ_FIND_H\r
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#include "7zTypes.h"\r
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EXTERN_C_BEGIN\r
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typedef UInt32 CLzRef;\r
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typedef struct _CMatchFinder\r
{\r
  Byte *buffer;\r
  UInt32 pos;\r
  UInt32 posLimit;\r
  UInt32 streamPos;\r
  UInt32 lenLimit;\r
\r
  UInt32 cyclicBufferPos;\r
  UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */\r
\r
  Byte streamEndWasReached;\r
  Byte btMode;\r
  Byte bigHash;\r
  Byte directInput;\r
\r
  UInt32 matchMaxLen;\r
  CLzRef *hash;\r
  CLzRef *son;\r
  UInt32 hashMask;\r
  UInt32 cutValue;\r
\r
  Byte *bufferBase;\r
  ISeqInStream *stream;\r
  \r
  UInt32 blockSize;\r
  UInt32 keepSizeBefore;\r
  UInt32 keepSizeAfter;\r
\r
  UInt32 numHashBytes;\r
  size_t directInputRem;\r
  UInt32 historySize;\r
  UInt32 fixedHashSize;\r
  UInt32 hashSizeSum;\r
  SRes result;\r
  UInt32 crc[256];\r
  size_t numRefs;\r
} CMatchFinder;\r
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#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)\r
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#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)\r
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#define Inline_MatchFinder_IsFinishedOK(p) \\r
    ((p)->streamEndWasReached \\r
        && (p)->streamPos == (p)->pos \\r
        && (!(p)->directInput || (p)->directInputRem == 0))\r
      \r
int MatchFinder_NeedMove(CMatchFinder *p);\r
Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);\r
void MatchFinder_MoveBlock(CMatchFinder *p);\r
void MatchFinder_ReadIfRequired(CMatchFinder *p);\r
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void MatchFinder_Construct(CMatchFinder *p);\r
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/* Conditions:\r
     historySize <= 3 GB\r
     keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB\r
*/\r
int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,\r
    UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,\r
    ISzAlloc *alloc);\r
void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);\r
void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, size_t numItems);\r
void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);\r
\r
UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,\r
    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,\r
    UInt32 *distances, UInt32 maxLen);\r
\r
/*\r
Conditions:\r
  Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func.\r
  Mf_GetPointerToCurrentPos_Func's result must be used only before any other function\r
*/\r
\r
typedef void (*Mf_Init_Func)(void *object);\r
typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object);\r
typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object);\r
typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances);\r
typedef void (*Mf_Skip_Func)(void *object, UInt32);\r
\r
typedef struct _IMatchFinder\r
{\r
  Mf_Init_Func Init;\r
  Mf_GetNumAvailableBytes_Func GetNumAvailableBytes;\r
  Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos;\r
  Mf_GetMatches_Func GetMatches;\r
  Mf_Skip_Func Skip;\r
} IMatchFinder;\r
\r
void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);\r
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void MatchFinder_Init_2(CMatchFinder *p, int readData);\r
void MatchFinder_Init(CMatchFinder *p);\r
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UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);\r
UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);\r
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void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);\r
void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);\r
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EXTERN_C_END\r
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#endif\r