77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
|
typedef struct tagLZI {
|
||
|
|
BYTE *rgbyteRingBuf; // ring buffer for expansion
|
||
|
|
BYTE *rgbyteInBuf; // input buffer for reads
|
||
|
|
BYTE *pbyteInBufEnd; // pointer past end of rgbyteInBuf[]
|
||
|
|
BYTE *pbyteInBuf; // pointer to next byte to read from
|
||
|
|
BYTE *rgbyteOutBuf; // output buffer for writes
|
||
|
|
BYTE *pbyteOutBufEnd; // pointer past end of rgbyteOutBuf[]
|
||
|
|
BYTE *pbyteOutBuf; // pointer to last byte to write from
|
||
|
|
// Flag indicating whether or not rgbyteInBuf[0], which holds the last byte
|
||
|
|
// from the previous input buffer, should be read as the next input byte.
|
||
|
|
// (Only used so that at least one unReadUChar() can be done at all input
|
||
|
|
// buffer positions.)
|
||
|
|
BOOL bLastUsed;
|
||
|
|
// Actually, rgbyteInBuf[] has length (ucbInBufLen + 1) since rgbyteInBuf[0]
|
||
|
|
// is used when bLastUsed is TRUE.
|
||
|
|
INT cbMaxMatchLen; // longest match length for current algorithm
|
||
|
|
LONG cblInSize, // size in bytes of input file
|
||
|
|
cblOutSize; // size in bytes of output file
|
||
|
|
DWORD ucbInBufLen, // length of input buffer
|
||
|
|
ucbOutBufLen; // length of output buffer
|
||
|
|
DWORD uFlags; // LZ decoding description byte
|
||
|
|
INT iCurRingBufPos; // ring buffer offset
|
||
|
|
INT *leftChild; // parents and left and right
|
||
|
|
INT *rightChild; // children that make up the
|
||
|
|
INT *parent; // binary search trees
|
||
|
|
|
||
|
|
INT iCurMatch, // index of longest match (set by LZInsertNode())
|
||
|
|
cbCurMatch; // length of longest match (set by LZInsertNode())
|
||
|
|
|
||
|
|
} LZINFO;
|
||
|
|
|
||
|
|
typedef LZINFO *PLZINFO;
|
||
|
|
|
||
|
|
typedef struct _dcx {
|
||
|
|
INT dcxDiamondLastIoError;
|
||
|
|
HFDI dcxFdiContext;
|
||
|
|
ERF dcxFdiError;
|
||
|
|
} DIAMOND_CONTEXT;
|
||
|
|
|
||
|
|
typedef DIAMOND_CONTEXT *PDIAMOND_CONTEXT;
|
||
|
|
|
||
|
|
|
||
|
|
extern DWORD itlsDiamondContext;
|
||
|
|
|
||
|
|
#define ITLS_ERROR (0xFFFFFFFF)
|
||
|
|
|
||
|
|
#define GotDmdTlsSlot() (itlsDiamondContext != ITLS_ERROR)
|
||
|
|
#define GotDmdContext() (TlsGetValue(itlsDiamondContext) != NULL)
|
||
|
|
|
||
|
|
#define FdiContext (((GotDmdTlsSlot() && GotDmdContext()) ? ((PDIAMOND_CONTEXT)(TlsGetValue(itlsDiamondContext)))->dcxFdiContext : NULL))
|
||
|
|
#define SetFdiContext(v) (((PDIAMOND_CONTEXT)(TlsGetValue(itlsDiamondContext)))->dcxFdiContext = (v))
|
||
|
|
#define FdiError (((PDIAMOND_CONTEXT)(TlsGetValue(itlsDiamondContext)))->dcxFdiError)
|
||
|
|
#define DiamondLastIoError (((PDIAMOND_CONTEXT)(TlsGetValue(itlsDiamondContext)))->dcxDiamondLastIoError)
|
||
|
|
|
||
|
|
DWORD
|
||
|
|
InitDiamond(
|
||
|
|
VOID
|
||
|
|
);
|
||
|
|
|
||
|
|
VOID
|
||
|
|
TermDiamond(
|
||
|
|
VOID
|
||
|
|
);
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
IsDiamondFile(
|
||
|
|
IN PSTR FileName
|
||
|
|
);
|
||
|
|
|
||
|
|
INT
|
||
|
|
ExpandDiamondFile(
|
||
|
|
IN PSTR SourceFileName, // Because LZOpen ... returns ASCII!
|
||
|
|
IN PTSTR TargetFileName,
|
||
|
|
IN BOOL RenameTarget,
|
||
|
|
OUT PLZINFO pLZI
|
||
|
|
);
|