From ce188d4d7f3b9ad04867c49b424e8497c2ade92b Mon Sep 17 00:00:00 2001 From: aliaspider Date: Tue, 14 May 2019 08:58:52 +0100 Subject: add CHD support. --- deps/lzma-16.04/C/7z.h | 202 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 202 insertions(+) create mode 100644 deps/lzma-16.04/C/7z.h (limited to 'deps/lzma-16.04/C/7z.h') diff --git a/deps/lzma-16.04/C/7z.h b/deps/lzma-16.04/C/7z.h new file mode 100644 index 0000000..216f381 --- /dev/null +++ b/deps/lzma-16.04/C/7z.h @@ -0,0 +1,202 @@ +/* 7z.h -- 7z interface +2015-11-18 : Igor Pavlov : Public domain */ + +#ifndef __7Z_H +#define __7Z_H + +#include "7zTypes.h" + +EXTERN_C_BEGIN + +#define k7zStartHeaderSize 0x20 +#define k7zSignatureSize 6 + +extern const Byte k7zSignature[k7zSignatureSize]; + +typedef struct +{ + const Byte *Data; + size_t Size; +} CSzData; + +/* CSzCoderInfo & CSzFolder support only default methods */ + +typedef struct +{ + size_t PropsOffset; + UInt32 MethodID; + Byte NumStreams; + Byte PropsSize; +} CSzCoderInfo; + +typedef struct +{ + UInt32 InIndex; + UInt32 OutIndex; +} CSzBond; + +#define SZ_NUM_CODERS_IN_FOLDER_MAX 4 +#define SZ_NUM_BONDS_IN_FOLDER_MAX 3 +#define SZ_NUM_PACK_STREAMS_IN_FOLDER_MAX 4 + +typedef struct +{ + UInt32 NumCoders; + UInt32 NumBonds; + UInt32 NumPackStreams; + UInt32 UnpackStream; + UInt32 PackStreams[SZ_NUM_PACK_STREAMS_IN_FOLDER_MAX]; + CSzBond Bonds[SZ_NUM_BONDS_IN_FOLDER_MAX]; + CSzCoderInfo Coders[SZ_NUM_CODERS_IN_FOLDER_MAX]; +} CSzFolder; + + +SRes SzGetNextFolderItem(CSzFolder *f, CSzData *sd); + +typedef struct +{ + UInt32 Low; + UInt32 High; +} CNtfsFileTime; + +typedef struct +{ + Byte *Defs; /* MSB 0 bit numbering */ + UInt32 *Vals; +} CSzBitUi32s; + +typedef struct +{ + Byte *Defs; /* MSB 0 bit numbering */ + // UInt64 *Vals; + CNtfsFileTime *Vals; +} CSzBitUi64s; + +#define SzBitArray_Check(p, i) (((p)[(i) >> 3] & (0x80 >> ((i) & 7))) != 0) + +#define SzBitWithVals_Check(p, i) ((p)->Defs && ((p)->Defs[(i) >> 3] & (0x80 >> ((i) & 7))) != 0) + +typedef struct +{ + UInt32 NumPackStreams; + UInt32 NumFolders; + + UInt64 *PackPositions; // NumPackStreams + 1 + CSzBitUi32s FolderCRCs; // NumFolders + + size_t *FoCodersOffsets; // NumFolders + 1 + UInt32 *FoStartPackStreamIndex; // NumFolders + 1 + UInt32 *FoToCoderUnpackSizes; // NumFolders + 1 + Byte *FoToMainUnpackSizeIndex; // NumFolders + UInt64 *CoderUnpackSizes; // for all coders in all folders + + Byte *CodersData; +} CSzAr; + +UInt64 SzAr_GetFolderUnpackSize(const CSzAr *p, UInt32 folderIndex); + +SRes SzAr_DecodeFolder(const CSzAr *p, UInt32 folderIndex, + ILookInStream *stream, UInt64 startPos, + Byte *outBuffer, size_t outSize, + ISzAlloc *allocMain); + +typedef struct +{ + CSzAr db; + + UInt64 startPosAfterHeader; + UInt64 dataPos; + + UInt32 NumFiles; + + UInt64 *UnpackPositions; // NumFiles + 1 + // Byte *IsEmptyFiles; + Byte *IsDirs; + CSzBitUi32s CRCs; + + CSzBitUi32s Attribs; + // CSzBitUi32s Parents; + CSzBitUi64s MTime; + CSzBitUi64s CTime; + + UInt32 *FolderToFile; // NumFolders + 1 + UInt32 *FileToFolder; // NumFiles + + size_t *FileNameOffsets; /* in 2-byte steps */ + Byte *FileNames; /* UTF-16-LE */ +} CSzArEx; + +#define SzArEx_IsDir(p, i) (SzBitArray_Check((p)->IsDirs, i)) + +#define SzArEx_GetFileSize(p, i) ((p)->UnpackPositions[(i) + 1] - (p)->UnpackPositions[i]) + +void SzArEx_Init(CSzArEx *p); +void SzArEx_Free(CSzArEx *p, ISzAlloc *alloc); +UInt64 SzArEx_GetFolderStreamPos(const CSzArEx *p, UInt32 folderIndex, UInt32 indexInFolder); +int SzArEx_GetFolderFullPackSize(const CSzArEx *p, UInt32 folderIndex, UInt64 *resSize); + +/* +if dest == NULL, the return value specifies the required size of the buffer, + in 16-bit characters, including the null-terminating character. +if dest != NULL, the return value specifies the number of 16-bit characters that + are written to the dest, including the null-terminating character. */ + +size_t SzArEx_GetFileNameUtf16(const CSzArEx *p, size_t fileIndex, UInt16 *dest); + +/* +size_t SzArEx_GetFullNameLen(const CSzArEx *p, size_t fileIndex); +UInt16 *SzArEx_GetFullNameUtf16_Back(const CSzArEx *p, size_t fileIndex, UInt16 *dest); +*/ + + + +/* + SzArEx_Extract extracts file from archive + + *outBuffer must be 0 before first call for each new archive. + + Extracting cache: + If you need to decompress more than one file, you can send + these values from previous call: + *blockIndex, + *outBuffer, + *outBufferSize + You can consider "*outBuffer" as cache of solid block. If your archive is solid, + it will increase decompression speed. + + If you use external function, you can declare these 3 cache variables + (blockIndex, outBuffer, outBufferSize) as static in that external function. + + Free *outBuffer and set *outBuffer to 0, if you want to flush cache. +*/ + +SRes SzArEx_Extract( + const CSzArEx *db, + ILookInStream *inStream, + UInt32 fileIndex, /* index of file */ + UInt32 *blockIndex, /* index of solid block */ + Byte **outBuffer, /* pointer to pointer to output buffer (allocated with allocMain) */ + size_t *outBufferSize, /* buffer size for output buffer */ + size_t *offset, /* offset of stream for required file in *outBuffer */ + size_t *outSizeProcessed, /* size of file in *outBuffer */ + ISzAlloc *allocMain, + ISzAlloc *allocTemp); + + +/* +SzArEx_Open Errors: +SZ_ERROR_NO_ARCHIVE +SZ_ERROR_ARCHIVE +SZ_ERROR_UNSUPPORTED +SZ_ERROR_MEM +SZ_ERROR_CRC +SZ_ERROR_INPUT_EOF +SZ_ERROR_FAIL +*/ + +SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream, + ISzAlloc *allocMain, ISzAlloc *allocTemp); + +EXTERN_C_END + +#endif -- cgit v1.2.3