mirror of https://github.com/OpenIPC/firmware.git
119 lines
3.5 KiB
Diff
119 lines
3.5 KiB
Diff
--- linux-4.9.37/include/linux/lzma/LzFind.h 1970-01-01 03:00:00.000000000 +0300
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+++ linux-4.9.y/include/linux/lzma/LzFind.h 2021-06-07 13:01:34.000000000 +0300
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@@ -0,0 +1,115 @@
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+/* LzFind.h -- Match finder for LZ algorithms
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+2009-04-22 : Igor Pavlov : Public domain */
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+
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+#ifndef __LZ_FIND_H
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+#define __LZ_FIND_H
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+
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+#include "Types.h"
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+
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+#ifdef __cplusplus
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+extern "C" {
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+#endif
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+
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+typedef UInt32 CLzRef;
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+
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+typedef struct _CMatchFinder
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+{
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+ Byte *buffer;
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+ UInt32 pos;
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+ UInt32 posLimit;
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+ UInt32 streamPos;
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+ UInt32 lenLimit;
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+
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+ UInt32 cyclicBufferPos;
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+ UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */
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+
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+ UInt32 matchMaxLen;
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+ CLzRef *hash;
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+ CLzRef *son;
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+ UInt32 hashMask;
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+ UInt32 cutValue;
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+
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+ Byte *bufferBase;
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+ ISeqInStream *stream;
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+ int streamEndWasReached;
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+
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+ UInt32 blockSize;
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+ UInt32 keepSizeBefore;
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+ UInt32 keepSizeAfter;
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+
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+ UInt32 numHashBytes;
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+ int directInput;
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+ size_t directInputRem;
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+ int btMode;
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+ int bigHash;
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+ UInt32 historySize;
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+ UInt32 fixedHashSize;
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+ UInt32 hashSizeSum;
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+ UInt32 numSons;
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+ SRes result;
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+ UInt32 crc[256];
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+} CMatchFinder;
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+
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+#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)
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+#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)])
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+
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+#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
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+
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+int MatchFinder_NeedMove(CMatchFinder *p);
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+Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
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+void MatchFinder_MoveBlock(CMatchFinder *p);
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+void MatchFinder_ReadIfRequired(CMatchFinder *p);
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+
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+void MatchFinder_Construct(CMatchFinder *p);
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+
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+/* Conditions:
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+ historySize <= 3 GB
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+ keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB
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+*/
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+int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
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+ UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
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+ ISzAlloc *alloc);
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+void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
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+void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems);
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+void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
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+
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+UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,
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+ UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
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+ UInt32 *distances, UInt32 maxLen);
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+
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+/*
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+Conditions:
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+ Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func.
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+ Mf_GetPointerToCurrentPos_Func's result must be used only before any other function
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+*/
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+
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+typedef void (*Mf_Init_Func)(void *object);
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+typedef Byte (*Mf_GetIndexByte_Func)(void *object, Int32 index);
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+typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object);
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+typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object);
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+typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances);
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+typedef void (*Mf_Skip_Func)(void *object, UInt32);
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+
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+typedef struct _IMatchFinder
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+{
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+ Mf_Init_Func Init;
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+ Mf_GetIndexByte_Func GetIndexByte;
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+ Mf_GetNumAvailableBytes_Func GetNumAvailableBytes;
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+ Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos;
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+ Mf_GetMatches_Func GetMatches;
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+ Mf_Skip_Func Skip;
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+} IMatchFinder;
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+
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+void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
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+
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+void MatchFinder_Init(CMatchFinder *p);
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+UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
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+UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
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+void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
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+void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
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+
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+#ifdef __cplusplus
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+}
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+#endif
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+
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+#endif
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