1 files changed, 74 insertions, 115 deletions
diff --git a/LzFind.h b/LzFind.h
index ccae302..64b5b2e 100644
--- a/LzFind.h
+++ b/LzFind.h
@@ -1,115 +1,74 @@
-/* LzFind.h -- Match finder for LZ algorithms
-2009-04-22 : Igor Pavlov : Public domain */
-
-#ifndef __LZ_FIND_H
-#define __LZ_FIND_H
-
-#include "Types.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef UInt32 CLzRef;
-
-typedef struct _CMatchFinder
-{
-  Byte *buffer;
-  UInt32 pos;
-  UInt32 posLimit;
-  UInt32 streamPos;
-  UInt32 lenLimit;
-
-  UInt32 cyclicBufferPos;
-  UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */
-
-  UInt32 matchMaxLen;
-  CLzRef *hash;
-  CLzRef *son;
-  UInt32 hashMask;
-  UInt32 cutValue;
-
-  Byte *bufferBase;
-  ISeqInStream *stream;
-  int streamEndWasReached;
-
-  UInt32 blockSize;
-  UInt32 keepSizeBefore;
-  UInt32 keepSizeAfter;
-
-  UInt32 numHashBytes;
-  int directInput;
-  size_t directInputRem;
-  int btMode;
-  int bigHash;
-  UInt32 historySize;
-  UInt32 fixedHashSize;
-  UInt32 hashSizeSum;
-  UInt32 numSons;
-  SRes result;
-  uint32_t crc;
-} CMatchFinder;
-
-#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)
-#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)])
-
-#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
-
-int MatchFinder_NeedMove(CMatchFinder *p);
-Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
-void MatchFinder_MoveBlock(CMatchFinder *p);
-void MatchFinder_ReadIfRequired(CMatchFinder *p);
-
-void MatchFinder_Construct(CMatchFinder *p);
-
-/* Conditions:
-     historySize <= 3 GB
-     keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB
-*/
-int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
-    UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
-    ISzAlloc *alloc);
-void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems);
-void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
-
-UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,
-    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
-    UInt32 *distances, UInt32 maxLen);
-
-/*
-Conditions:
-  Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func.
-  Mf_GetPointerToCurrentPos_Func's result must be used only before any other function
-*/
-
-typedef void (*Mf_Init_Func)(void *object);
-typedef Byte (*Mf_GetIndexByte_Func)(void *object, Int32 index);
-typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object);
-typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object);
-typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances);
-typedef void (*Mf_Skip_Func)(void *object, UInt32);
-
-typedef struct _IMatchFinder
-{
-  Mf_Init_Func Init;
-  Mf_GetIndexByte_Func GetIndexByte;
-  Mf_GetNumAvailableBytes_Func GetNumAvailableBytes;
-  Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos;
-  Mf_GetMatches_Func GetMatches;
-  Mf_Skip_Func Skip;
-} IMatchFinder;
-
-void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
-
-void MatchFinder_Init(CMatchFinder *p);
-UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
-UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+/* LzFind.h -- Match finder for LZ algorithms
+2009-04-22 : Igor Pavlov : Public domain */
+
+typedef uint32_t CLzRef;
+
+typedef struct
+{
+  uint8_t *bufferBase;
+  uint8_t *buffer;
+  CLzRef *hash;
+  CLzRef *son;
+  uint32_t pos;
+  uint32_t posLimit;
+  uint32_t streamPos;
+  uint32_t lenLimit;
+
+  uint32_t cyclicBufferPos;
+  uint32_t cyclicBufferSize; /* it must be = (historySize + 1) */
+
+  uint32_t matchMaxLen;
+  uint32_t hashMask;
+  uint32_t cutValue;
+
+  uint32_t blockSize;
+  uint32_t keepSizeBefore;
+  uint32_t keepSizeAfter;
+
+  uint32_t numHashBytes;
+  uint32_t historySize;
+  uint32_t hashSizeSum;
+  uint32_t numSons;
+  int infd;
+  int result;
+  uint32_t crc;
+  bool btMode;
+  bool streamEndWasReached;
+} CMatchFinder;
+
+
+/* Conditions:
+     historySize <= 3 GB
+     keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB
+*/
+int Mf_Init(CMatchFinder *p, const int ifd, const int mc, uint32_t historySize,
+    uint32_t keepAddBufferBefore, uint32_t matchMaxLen, uint32_t keepAddBufferAfter);
+
+void Mf_Free(CMatchFinder *p);
+
+
+/*
+Conditions:
+  Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func.
+  Mf_GetPointerToCurrentPos_Func's result must be used only before any other function
+*/
+
+typedef uint32_t (*Mf_GetMatches_Func)(void *object, uint32_t *distances);
+typedef void (*Mf_Skip_Func)(void *object, uint32_t);
+
+typedef struct _IMatchFinder
+{
+  Mf_GetMatches_Func GetMatches;
+  Mf_Skip_Func Skip;
+} IMatchFinder;
+
+void Mf_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
+
+static inline uint32_t Mf_GetNumAvailableBytes(CMatchFinder *p)
+  { return p->streamPos - p->pos; }
+
+static inline uint8_t Mf_GetIndexByte(CMatchFinder *p, int index)
+  { return p->buffer[index]; }
+
+static inline uint8_t * Mf_GetPointerToCurrentPos(CMatchFinder *p)
+  { return p->buffer; }