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Reformat SevenZip (Resharper)

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This commit is contained in:
Vladimir Kononovich 2020-12-19 23:32:06 +03:00
parent 4925698573
commit 68c88a6b7c
35 changed files with 5095 additions and 5064 deletions
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143
SevenZip/7z.h
View file

@ -15,24 +15,24 @@ extern const Byte k7zSignature[k7zSignatureSize];
typedef struct
{
const Byte *Data;
size_t Size;
const Byte* Data;
size_t Size;
} CSzData;
/* CSzCoderInfo & CSzFolder support only default methods */
typedef struct
{
size_t PropsOffset;
UInt32 MethodID;
Byte NumStreams;
Byte PropsSize;
size_t PropsOffset;
UInt32 MethodID;
Byte NumStreams;
Byte PropsSize;
} CSzCoderInfo;
typedef struct
{
UInt32 InIndex;
UInt32 OutIndex;
UInt32 InIndex;
UInt32 OutIndex;
} CSzBond;
#define SZ_NUM_CODERS_IN_FOLDER_MAX 4
@ -41,35 +41,35 @@ typedef struct
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];
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);
SRes SzGetNextFolderItem(CSzFolder* f, CSzData* sd);
typedef struct
{
UInt32 Low;
UInt32 High;
UInt32 Low;
UInt32 High;
} CNtfsFileTime;
typedef struct
{
Byte *Defs; /* MSB 0 bit numbering */
UInt32 *Vals;
Byte* Defs; /* MSB 0 bit numbering */
UInt32* Vals;
} CSzBitUi32s;
typedef struct
{
Byte *Defs; /* MSB 0 bit numbering */
// UInt64 *Vals;
CNtfsFileTime *Vals;
Byte* Defs; /* MSB 0 bit numbering */
// UInt64 *Vals;
CNtfsFileTime* Vals;
} CSzBitUi64s;
#define SzBitArray_Check(p, i) (((p)[(i) >> 3] & (0x80 >> ((i) & 7))) != 0)
@ -78,62 +78,62 @@ typedef struct
typedef struct
{
UInt32 NumPackStreams;
UInt32 NumFolders;
UInt32 NumPackStreams;
UInt32 NumFolders;
UInt64 *PackPositions; // NumPackStreams + 1
CSzBitUi32s FolderCRCs; // 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
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;
Byte* CodersData;
} CSzAr;
UInt64 SzAr_GetFolderUnpackSize(const CSzAr *p, UInt32 folderIndex);
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);
SRes SzAr_DecodeFolder(const CSzAr* p, UInt32 folderIndex,
ILookInStream* stream, UInt64 startPos,
Byte* outBuffer, size_t outSize,
ISzAlloc* allocMain);
typedef struct
{
CSzAr db;
CSzAr db;
UInt64 startPosAfterHeader;
UInt64 dataPos;
UInt64 startPosAfterHeader;
UInt64 dataPos;
UInt32 NumFiles;
UInt32 NumFiles;
UInt64 *UnpackPositions; // NumFiles + 1
// Byte *IsEmptyFiles;
Byte *IsDirs;
CSzBitUi32s CRCs;
UInt64* UnpackPositions; // NumFiles + 1
// Byte *IsEmptyFiles;
Byte* IsDirs;
CSzBitUi32s CRCs;
CSzBitUi32s Attribs;
// CSzBitUi32s Parents;
CSzBitUi64s MTime;
CSzBitUi64s CTime;
CSzBitUi32s Attribs;
// CSzBitUi32s Parents;
CSzBitUi64s MTime;
CSzBitUi64s CTime;
UInt32 *FolderToFile; // NumFolders + 1
UInt32 *FileToFolder; // NumFiles
UInt32* FolderToFile; // NumFolders + 1
UInt32* FileToFolder; // NumFiles
size_t *FileNameOffsets; /* in 2-byte steps */
Byte *FileNames; /* UTF-16-LE */
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);
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,
@ -141,7 +141,7 @@ if dest == NULL, the return value specifies the required size of the buffer,
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_GetFileNameUtf16(const CSzArEx* p, size_t fileIndex, UInt16* dest);
/*
size_t SzArEx_GetFullNameLen(const CSzArEx *p, size_t fileIndex);
@ -149,7 +149,6 @@ UInt16 *SzArEx_GetFullNameUtf16_Back(const CSzArEx *p, size_t fileIndex, UInt16
*/
/*
SzArEx_Extract extracts file from archive
@ -171,16 +170,16 @@ UInt16 *SzArEx_GetFullNameUtf16_Back(const CSzArEx *p, size_t fileIndex, UInt16
*/
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);
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);
/*
@ -194,8 +193,8 @@ SZ_ERROR_INPUT_EOF
SZ_ERROR_FAIL
*/
SRes SzArEx_Open(CSzArEx *p, ILookInStream *inStream,
ISzAlloc *allocMain, ISzAlloc *allocTemp);
SRes SzArEx_Open(CSzArEx* p, ILookInStream* inStream,
ISzAlloc* allocMain, ISzAlloc* allocTemp);
EXTERN_C_END

56
SevenZip/7zAlloc.c
View file

@ -20,59 +20,59 @@ int g_allocCountTemp = 0;
#endif
void *SzAlloc(void *p, size_t size)
void* SzAlloc(void* p, size_t size)
{
UNUSED_VAR(p);
if (size == 0)
return 0;
#ifdef _SZ_ALLOC_DEBUG
UNUSED_VAR(p);
if (size == 0)
return 0;
#ifdef _SZ_ALLOC_DEBUG
fprintf(stderr, "\nAlloc %10u bytes; count = %10d", (unsigned)size, g_allocCount);
g_allocCount++;
#endif
return malloc(size);
#endif
return malloc(size);
}
void SzFree(void *p, void *address)
void SzFree(void* p, void* address)
{
UNUSED_VAR(p);
#ifdef _SZ_ALLOC_DEBUG
UNUSED_VAR(p);
#ifdef _SZ_ALLOC_DEBUG
if (address != 0)
{
g_allocCount--;
fprintf(stderr, "\nFree; count = %10d", g_allocCount);
}
#endif
free(address);
#endif
free(address);
}
void *SzAllocTemp(void *p, size_t size)
void* SzAllocTemp(void* p, size_t size)
{
UNUSED_VAR(p);
if (size == 0)
return 0;
#ifdef _SZ_ALLOC_DEBUG
UNUSED_VAR(p);
if (size == 0)
return 0;
#ifdef _SZ_ALLOC_DEBUG
fprintf(stderr, "\nAlloc_temp %10u bytes; count = %10d", (unsigned)size, g_allocCountTemp);
g_allocCountTemp++;
#ifdef _WIN32
#ifdef _WIN32
return HeapAlloc(GetProcessHeap(), 0, size);
#endif
#endif
return malloc(size);
#endif
#endif
return malloc(size);
}
void SzFreeTemp(void *p, void *address)
void SzFreeTemp(void* p, void* address)
{
UNUSED_VAR(p);
#ifdef _SZ_ALLOC_DEBUG
UNUSED_VAR(p);
#ifdef _SZ_ALLOC_DEBUG
if (address != 0)
{
g_allocCountTemp--;
fprintf(stderr, "\nFree_temp; count = %10d", g_allocCountTemp);
}
#ifdef _WIN32
#ifdef _WIN32
HeapFree(GetProcessHeap(), 0, address);
return;
#endif
#endif
free(address);
#endif
#endif
free(address);
}

8
SevenZip/7zAlloc.h
View file

@ -10,11 +10,11 @@
extern "C" {
#endif
void *SzAlloc(void *p, size_t size);
void SzFree(void *p, void *address);
void* SzAlloc(void* p, size_t size);
void SzFree(void* p, void* address);
void *SzAllocTemp(void *p, size_t size);
void SzFreeTemp(void *p, void *address);
void* SzAllocTemp(void* p, size_t size);
void SzFreeTemp(void* p, void* address);
#ifdef __cplusplus
}

2731
SevenZip/7zArcIn.c
View file

File diff suppressed because it is too large Load diff

42
SevenZip/7zBuf.c
View file

@ -5,32 +5,32 @@
#include "7zBuf.h"
void Buf_Init(CBuf *p)
void Buf_Init(CBuf* p)
{
p->data = 0;
p->size = 0;
p->data = 0;
p->size = 0;
}
int Buf_Create(CBuf *p, size_t size, ISzAlloc *alloc)
int Buf_Create(CBuf* p, size_t size, ISzAlloc* alloc)
{
p->size = 0;
if (size == 0)
{
p->data = 0;
return 1;
}
p->data = (Byte *)alloc->Alloc(alloc, size);
if (p->data != 0)
{
p->size = size;
return 1;
}
return 0;
p->size = 0;
if (size == 0)
{
p->data = 0;
return 1;
}
p->data = (Byte*)alloc->Alloc(alloc, size);
if (p->data != 0)
{
p->size = size;
return 1;
}
return 0;
}
void Buf_Free(CBuf *p, ISzAlloc *alloc)
void Buf_Free(CBuf* p, ISzAlloc* alloc)
{
alloc->Free(alloc, p->data);
p->data = 0;
p->size = 0;
alloc->Free(alloc, p->data);
p->data = 0;
p->size = 0;
}

24
SevenZip/7zBuf.h
View file

@ -10,25 +10,25 @@ EXTERN_C_BEGIN
typedef struct
{
Byte *data;
size_t size;
Byte* data;
size_t size;
} CBuf;
void Buf_Init(CBuf *p);
int Buf_Create(CBuf *p, size_t size, ISzAlloc *alloc);
void Buf_Free(CBuf *p, ISzAlloc *alloc);
void Buf_Init(CBuf* p);
int Buf_Create(CBuf* p, size_t size, ISzAlloc* alloc);
void Buf_Free(CBuf* p, ISzAlloc* alloc);
typedef struct
{
Byte *data;
size_t size;
size_t pos;
Byte* data;
size_t size;
size_t pos;
} CDynBuf;
void DynBuf_Construct(CDynBuf *p);
void DynBuf_SeekToBeg(CDynBuf *p);
int DynBuf_Write(CDynBuf *p, const Byte *buf, size_t size, ISzAlloc *alloc);
void DynBuf_Free(CDynBuf *p, ISzAlloc *alloc);
void DynBuf_Construct(CDynBuf* p);
void DynBuf_SeekToBeg(CDynBuf* p);
int DynBuf_Write(CDynBuf* p, const Byte* buf, size_t size, ISzAlloc* alloc);
void DynBuf_Free(CDynBuf* p, ISzAlloc* alloc);
EXTERN_C_END

98
SevenZip/7zCrc.c
View file

@ -9,7 +9,7 @@
#define kCrcPoly 0xEDB88320
#ifdef MY_CPU_LE
#define CRC_NUM_TABLES 8
#define CRC_NUM_TABLES 8
#else
#define CRC_NUM_TABLES 9
@ -20,11 +20,11 @@
#endif
#ifndef MY_CPU_BE
UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table);
UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void* data, size_t size, const UInt32* table);
UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void* data, size_t size, const UInt32* table);
#endif
typedef UInt32 (MY_FAST_CALL *CRC_FUNC)(UInt32 v, const void *data, size_t size, const UInt32 *table);
typedef UInt32 (MY_FAST_CALL *CRC_FUNC)(UInt32 v, const void* data, size_t size, const UInt32* table);
CRC_FUNC g_CrcUpdateT4;
CRC_FUNC g_CrcUpdateT8;
@ -32,82 +32,82 @@ CRC_FUNC g_CrcUpdate;
UInt32 g_CrcTable[256 * CRC_NUM_TABLES];
UInt32 MY_FAST_CALL CrcUpdate(UInt32 v, const void *data, size_t size)
UInt32 MY_FAST_CALL CrcUpdate(UInt32 v, const void* data, size_t size)
{
return g_CrcUpdate(v, data, size, g_CrcTable);
return g_CrcUpdate(v, data, size, g_CrcTable);
}
UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size)
UInt32 MY_FAST_CALL CrcCalc(const void* data, size_t size)
{
return g_CrcUpdate(CRC_INIT_VAL, data, size, g_CrcTable) ^ CRC_INIT_VAL;
return g_CrcUpdate(CRC_INIT_VAL, data, size, g_CrcTable) ^ CRC_INIT_VAL;
}
#define CRC_UPDATE_BYTE_2(crc, b) (table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
UInt32 MY_FAST_CALL CrcUpdateT1(UInt32 v, const void *data, size_t size, const UInt32 *table)
UInt32 MY_FAST_CALL CrcUpdateT1(UInt32 v, const void* data, size_t size, const UInt32* table)
{
const Byte *p = (const Byte *)data;
const Byte *pEnd = p + size;
for (; p != pEnd; p++)
v = CRC_UPDATE_BYTE_2(v, *p);
return v;
const Byte* p = (const Byte*)data;
const Byte* pEnd = p + size;
for (; p != pEnd; p++)
v = CRC_UPDATE_BYTE_2(v, *p);
return v;
}
void MY_FAST_CALL CrcGenerateTable()
{
UInt32 i;
for (i = 0; i < 256; i++)
{
UInt32 r = i;
unsigned j;
for (j = 0; j < 8; j++)
r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
g_CrcTable[i] = r;
}
for (; i < 256 * CRC_NUM_TABLES; i++)
{
UInt32 r = g_CrcTable[i - 256];
g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8);
}
UInt32 i;
for (i = 0; i < 256; i++)
{
UInt32 r = i;
unsigned j;
for (j = 0; j < 8; j++)
r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
g_CrcTable[i] = r;
}
for (; i < 256 * CRC_NUM_TABLES; i++)
{
UInt32 r = g_CrcTable[i - 256];
g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8);
}
#if CRC_NUM_TABLES < 4
#if CRC_NUM_TABLES < 4
g_CrcUpdate = CrcUpdateT1;
#else
#else
#ifdef MY_CPU_LE
#ifdef MY_CPU_LE
g_CrcUpdateT4 = CrcUpdateT4;
g_CrcUpdate = CrcUpdateT4;
g_CrcUpdateT4 = CrcUpdateT4;
g_CrcUpdate = CrcUpdateT4;
#if CRC_NUM_TABLES >= 8
g_CrcUpdateT8 = CrcUpdateT8;
#if CRC_NUM_TABLES >= 8
g_CrcUpdateT8 = CrcUpdateT8;
#ifdef MY_CPU_X86_OR_AMD64
if (!CPU_Is_InOrder())
g_CrcUpdate = CrcUpdateT8;
#endif
#endif
#ifdef MY_CPU_X86_OR_AMD64
if (!CPU_Is_InOrder())
g_CrcUpdate = CrcUpdateT8;
#endif
#endif
#else
#else
{
#ifndef MY_CPU_BE
#ifndef MY_CPU_BE
UInt32 k = 0x01020304;
const Byte *p = (const Byte *)&k;
if (p[0] == 4 && p[1] == 3)
{
g_CrcUpdateT4 = CrcUpdateT4;
g_CrcUpdate = CrcUpdateT4;
#if CRC_NUM_TABLES >= 8
#if CRC_NUM_TABLES >= 8
g_CrcUpdateT8 = CrcUpdateT8;
// g_CrcUpdate = CrcUpdateT8;
#endif
#endif
}
else if (p[0] != 1 || p[1] != 2)
g_CrcUpdate = CrcUpdateT1;
else
#endif
#endif
{
for (i = 256 * CRC_NUM_TABLES - 1; i >= 256; i--)
{
@ -116,13 +116,13 @@ void MY_FAST_CALL CrcGenerateTable()
}
g_CrcUpdateT4 = CrcUpdateT1_BeT4;
g_CrcUpdate = CrcUpdateT1_BeT4;
#if CRC_NUM_TABLES >= 8
#if CRC_NUM_TABLES >= 8
g_CrcUpdateT8 = CrcUpdateT1_BeT8;
// g_CrcUpdate = CrcUpdateT1_BeT8;
#endif
#endif
}
}
#endif
#endif
#endif
#endif
}

4
SevenZip/7zCrc.h
View file

@ -17,8 +17,8 @@ void MY_FAST_CALL CrcGenerateTable(void);
#define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)
#define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);
UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);
UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void* data, size_t size);
UInt32 MY_FAST_CALL CrcCalc(const void* data, size_t size);
EXTERN_C_END

78
SevenZip/7zCrcOpt.c
View file

@ -9,49 +9,49 @@
#define CRC_UPDATE_BYTE_2(crc, b) (table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table)
UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void* data, size_t size, const UInt32* table)
{
const Byte *p = (const Byte *)data;
for (; size > 0 && ((unsigned)(ptrdiff_t)p & 3) != 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
for (; size >= 4; size -= 4, p += 4)
{
v ^= *(const UInt32 *)p;
v =
table[0x300 + ((v ) & 0xFF)]
^ table[0x200 + ((v >> 8) & 0xFF)]
^ table[0x100 + ((v >> 16) & 0xFF)]
^ table[0x000 + ((v >> 24))];
}
for (; size > 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
return v;
const Byte* p = (const Byte*)data;
for (; size > 0 && ((unsigned)(ptrdiff_t)p & 3) != 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
for (; size >= 4; size -= 4, p += 4)
{
v ^= *(const UInt32*)p;
v =
table[0x300 + ((v) & 0xFF)]
^ table[0x200 + ((v >> 8) & 0xFF)]
^ table[0x100 + ((v >> 16) & 0xFF)]
^ table[0x000 + ((v >> 24))];
}
for (; size > 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
return v;
}
UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table)
UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void* data, size_t size, const UInt32* table)
{
const Byte *p = (const Byte *)data;
for (; size > 0 && ((unsigned)(ptrdiff_t)p & 7) != 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
for (; size >= 8; size -= 8, p += 8)
{
UInt32 d;
v ^= *(const UInt32 *)p;
v =
table[0x700 + ((v ) & 0xFF)]
^ table[0x600 + ((v >> 8) & 0xFF)]
^ table[0x500 + ((v >> 16) & 0xFF)]
^ table[0x400 + ((v >> 24))];
d = *((const UInt32 *)p + 1);
v ^=
table[0x300 + ((d ) & 0xFF)]
^ table[0x200 + ((d >> 8) & 0xFF)]
^ table[0x100 + ((d >> 16) & 0xFF)]
^ table[0x000 + ((d >> 24))];
}
for (; size > 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
return v;
const Byte* p = (const Byte*)data;
for (; size > 0 && ((unsigned)(ptrdiff_t)p & 7) != 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
for (; size >= 8; size -= 8, p += 8)
{
UInt32 d;
v ^= *(const UInt32*)p;
v =
table[0x700 + ((v) & 0xFF)]
^ table[0x600 + ((v >> 8) & 0xFF)]
^ table[0x500 + ((v >> 16) & 0xFF)]
^ table[0x400 + ((v >> 24))];
d = *((const UInt32*)p + 1);
v ^=
table[0x300 + ((d) & 0xFF)]
^ table[0x200 + ((d >> 8) & 0xFF)]
^ table[0x100 + ((d >> 16) & 0xFF)]
^ table[0x000 + ((d >> 24))];
}
for (; size > 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
return v;
}
#endif

750
SevenZip/7zDec.c
View file

@ -131,461 +131,467 @@ static SRes SzDecodePpmd(const Byte *props, unsigned propsSize, UInt64 inSize, I
#endif
static SRes SzDecodeLzma(const Byte *props, unsigned propsSize, UInt64 inSize, ILookInStream *inStream,
Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
static SRes SzDecodeLzma(const Byte* props, unsigned propsSize, UInt64 inSize, ILookInStream* inStream,
Byte* outBuffer, SizeT outSize, ISzAlloc* allocMain)
{
CLzmaDec state;
SRes res = SZ_OK;
CLzmaDec state;
SRes res = SZ_OK;
LzmaDec_Construct(&state);
RINOK(LzmaDec_AllocateProbs(&state, props, propsSize, allocMain));
state.dic = outBuffer;
state.dicBufSize = outSize;
LzmaDec_Init(&state);
LzmaDec_Construct(&state);
RINOK(LzmaDec_AllocateProbs(&state, props, propsSize, allocMain));
state.dic = outBuffer;
state.dicBufSize = outSize;
LzmaDec_Init(&state);
for (;;)
{
const void *inBuf = NULL;
size_t lookahead = (1 << 18);
if (lookahead > inSize)
lookahead = (size_t)inSize;
res = inStream->Look(inStream, &inBuf, &lookahead);
if (res != SZ_OK)
break;
for (;;)
{
const void* inBuf = NULL;
size_t lookahead = (1 << 18);
if (lookahead > inSize)
lookahead = (size_t)inSize;
res = inStream->Look(inStream, &inBuf, &lookahead);
if (res != SZ_OK)
break;
{
SizeT inProcessed = (SizeT)lookahead, dicPos = state.dicPos;
ELzmaStatus status;
res = LzmaDec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status);
lookahead -= inProcessed;
inSize -= inProcessed;
if (res != SZ_OK)
break;
{
SizeT inProcessed = (SizeT)lookahead, dicPos = state.dicPos;
ELzmaStatus status;
res = LzmaDec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status);
lookahead -= inProcessed;
inSize -= inProcessed;
if (res != SZ_OK)
break;
if (status == LZMA_STATUS_FINISHED_WITH_MARK)
{
if (outSize != state.dicPos || inSize != 0)
res = SZ_ERROR_DATA;
break;
}
if (status == LZMA_STATUS_FINISHED_WITH_MARK)
{
if (outSize != state.dicPos || inSize != 0)
res = SZ_ERROR_DATA;
break;
}
if (outSize == state.dicPos && inSize == 0 && status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK)
break;
if (outSize == state.dicPos && inSize == 0 && status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK)
break;
if (inProcessed == 0 && dicPos == state.dicPos)
{
res = SZ_ERROR_DATA;
break;
}
if (inProcessed == 0 && dicPos == state.dicPos)
{
res = SZ_ERROR_DATA;
break;
}
res = inStream->Skip((void *)inStream, inProcessed);
if (res != SZ_OK)
break;
}
}
res = inStream->Skip((void*)inStream, inProcessed);
if (res != SZ_OK)
break;
}
}
LzmaDec_FreeProbs(&state, allocMain);
return res;
LzmaDec_FreeProbs(&state, allocMain);
return res;
}
#ifndef _7Z_NO_METHOD_LZMA2
static SRes SzDecodeLzma2(const Byte *props, unsigned propsSize, UInt64 inSize, ILookInStream *inStream,
Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain)
static SRes SzDecodeLzma2(const Byte* props, unsigned propsSize, UInt64 inSize, ILookInStream* inStream,
Byte* outBuffer, SizeT outSize, ISzAlloc* allocMain)
{
CLzma2Dec state;
SRes res = SZ_OK;
CLzma2Dec state;
SRes res = SZ_OK;
Lzma2Dec_Construct(&state);
if (propsSize != 1)
return SZ_ERROR_DATA;
RINOK(Lzma2Dec_AllocateProbs(&state, props[0], allocMain));
state.decoder.dic = outBuffer;
state.decoder.dicBufSize = outSize;
Lzma2Dec_Init(&state);
Lzma2Dec_Construct(&state);
if (propsSize != 1)
return SZ_ERROR_DATA;
RINOK(Lzma2Dec_AllocateProbs(&state, props[0], allocMain));
state.decoder.dic = outBuffer;
state.decoder.dicBufSize = outSize;
Lzma2Dec_Init(&state);
for (;;)
{
const void *inBuf = NULL;
size_t lookahead = (1 << 18);
if (lookahead > inSize)
lookahead = (size_t)inSize;
res = inStream->Look(inStream, &inBuf, &lookahead);
if (res != SZ_OK)
break;
for (;;)
{
const void* inBuf = NULL;
size_t lookahead = (1 << 18);
if (lookahead > inSize)
lookahead = (size_t)inSize;
res = inStream->Look(inStream, &inBuf, &lookahead);
if (res != SZ_OK)
break;
{
SizeT inProcessed = (SizeT)lookahead, dicPos = state.decoder.dicPos;
ELzmaStatus status;
res = Lzma2Dec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status);
lookahead -= inProcessed;
inSize -= inProcessed;
if (res != SZ_OK)
break;
{
SizeT inProcessed = (SizeT)lookahead, dicPos = state.decoder.dicPos;
ELzmaStatus status;
res = Lzma2Dec_DecodeToDic(&state, outSize, inBuf, &inProcessed, LZMA_FINISH_END, &status);
lookahead -= inProcessed;
inSize -= inProcessed;
if (res != SZ_OK)
break;
if (status == LZMA_STATUS_FINISHED_WITH_MARK)
{
if (outSize != state.decoder.dicPos || inSize != 0)
res = SZ_ERROR_DATA;
break;
}
if (status == LZMA_STATUS_FINISHED_WITH_MARK)
{
if (outSize != state.decoder.dicPos || inSize != 0)
res = SZ_ERROR_DATA;
break;
}
if (inProcessed == 0 && dicPos == state.decoder.dicPos)
{
res = SZ_ERROR_DATA;
break;
}
if (inProcessed == 0 && dicPos == state.decoder.dicPos)
{
res = SZ_ERROR_DATA;
break;
}
res = inStream->Skip((void *)inStream, inProcessed);
if (res != SZ_OK)
break;
}
}
res = inStream->Skip((void*)inStream, inProcessed);
if (res != SZ_OK)
break;
}
}
Lzma2Dec_FreeProbs(&state, allocMain);
return res;
Lzma2Dec_FreeProbs(&state, allocMain);
return res;
}
#endif
static SRes SzDecodeCopy(UInt64 inSize, ILookInStream *inStream, Byte *outBuffer)
static SRes SzDecodeCopy(UInt64 inSize, ILookInStream* inStream, Byte* outBuffer)
{
while (inSize > 0)
{
const void *inBuf;
size_t curSize = (1 << 18);
if (curSize > inSize)
curSize = (size_t)inSize;
RINOK(inStream->Look(inStream, &inBuf, &curSize));
if (curSize == 0)
return SZ_ERROR_INPUT_EOF;
memcpy(outBuffer, inBuf, curSize);
outBuffer += curSize;
inSize -= curSize;
RINOK(inStream->Skip((void *)inStream, curSize));
}
return SZ_OK;
while (inSize > 0)
{
const void* inBuf;
size_t curSize = (1 << 18);
if (curSize > inSize)
curSize = (size_t)inSize;
RINOK(inStream->Look(inStream, &inBuf, &curSize));
if (curSize == 0)
return SZ_ERROR_INPUT_EOF;
memcpy(outBuffer, inBuf, curSize);
outBuffer += curSize;
inSize -= curSize;
RINOK(inStream->Skip((void *)inStream, curSize));
}
return SZ_OK;
}
static Bool IS_MAIN_METHOD(UInt32 m)
{
switch (m)
{
case k_Copy:
case k_LZMA:
#ifndef _7Z_NO_METHOD_LZMA2
case k_LZMA2:
#endif
#ifdef _7ZIP_PPMD_SUPPPORT
switch (m)
{
case k_Copy:
case k_LZMA:
#ifndef _7Z_NO_METHOD_LZMA2
case k_LZMA2:
#endif
#ifdef _7ZIP_PPMD_SUPPPORT
case k_PPMD:
#endif
return True;
}
return False;
#endif
return True;
}
return False;
}
static Bool IS_SUPPORTED_CODER(const CSzCoderInfo *c)
static Bool IS_SUPPORTED_CODER(const CSzCoderInfo* c)
{
return
c->NumStreams == 1
/* && c->MethodID <= (UInt32)0xFFFFFFFF */
&& IS_MAIN_METHOD((UInt32)c->MethodID);
return
c->NumStreams == 1
/* && c->MethodID <= (UInt32)0xFFFFFFFF */
&& IS_MAIN_METHOD((UInt32)c->MethodID);
}
#define IS_BCJ2(c) ((c)->MethodID == k_BCJ2 && (c)->NumStreams == 4)
static SRes CheckSupportedFolder(const CSzFolder *f)
static SRes CheckSupportedFolder(const CSzFolder* f)
{
if (f->NumCoders < 1 || f->NumCoders > 4)
return SZ_ERROR_UNSUPPORTED;
if (!IS_SUPPORTED_CODER(&f->Coders[0]))
return SZ_ERROR_UNSUPPORTED;
if (f->NumCoders == 1)
{
if (f->NumPackStreams != 1 || f->PackStreams[0] != 0 || f->NumBonds != 0)
return SZ_ERROR_UNSUPPORTED;
return SZ_OK;
}
if (f->NumCoders < 1 || f->NumCoders > 4)
return SZ_ERROR_UNSUPPORTED;
if (!IS_SUPPORTED_CODER(&f->Coders[0]))
return SZ_ERROR_UNSUPPORTED;
if (f->NumCoders == 1)
{
if (f->NumPackStreams != 1 || f->PackStreams[0] != 0 || f->NumBonds != 0)
return SZ_ERROR_UNSUPPORTED;
return SZ_OK;
}
#ifndef _7Z_NO_METHODS_FILTERS
#ifndef _7Z_NO_METHODS_FILTERS
if (f->NumCoders == 2)
{
const CSzCoderInfo *c = &f->Coders[1];
if (
/* c->MethodID > (UInt32)0xFFFFFFFF || */
c->NumStreams != 1
|| f->NumPackStreams != 1
|| f->PackStreams[0] != 0
|| f->NumBonds != 1
|| f->Bonds[0].InIndex != 1
|| f->Bonds[0].OutIndex != 0)
return SZ_ERROR_UNSUPPORTED;
switch ((UInt32)c->MethodID)
{
case k_Delta:
case k_BCJ:
case k_PPC:
case k_IA64:
case k_SPARC:
case k_ARM:
case k_ARMT:
break;
default:
return SZ_ERROR_UNSUPPORTED;
}
return SZ_OK;
}
if (f->NumCoders == 2)
{
const CSzCoderInfo* c = &f->Coders[1];
if (
/* c->MethodID > (UInt32)0xFFFFFFFF || */
c->NumStreams != 1
|| f->NumPackStreams != 1
|| f->PackStreams[0] != 0
|| f->NumBonds != 1
|| f->Bonds[0].InIndex != 1
|| f->Bonds[0].OutIndex != 0)
return SZ_ERROR_UNSUPPORTED;
switch ((UInt32)c->MethodID)
{
case k_Delta:
case k_BCJ:
case k_PPC:
case k_IA64:
case k_SPARC:
case k_ARM:
case k_ARMT:
break;
default:
return SZ_ERROR_UNSUPPORTED;
}
return SZ_OK;
}
#endif
#endif
if (f->NumCoders == 4)
{
if (!IS_SUPPORTED_CODER(&f->Coders[1])
|| !IS_SUPPORTED_CODER(&f->Coders[2])
|| !IS_BCJ2(&f->Coders[3]))
return SZ_ERROR_UNSUPPORTED;
if (f->NumPackStreams != 4
|| f->PackStreams[0] != 2
|| f->PackStreams[1] != 6
|| f->PackStreams[2] != 1
|| f->PackStreams[3] != 0
|| f->NumBonds != 3
|| f->Bonds[0].InIndex != 5 || f->Bonds[0].OutIndex != 0
|| f->Bonds[1].InIndex != 4 || f->Bonds[1].OutIndex != 1
|| f->Bonds[2].InIndex != 3 || f->Bonds[2].OutIndex != 2)
return SZ_ERROR_UNSUPPORTED;
return SZ_OK;
}
if (f->NumCoders == 4)
{
if (!IS_SUPPORTED_CODER(&f->Coders[1])
|| !IS_SUPPORTED_CODER(&f->Coders[2])
|| !IS_BCJ2(&f->Coders[3]))
return SZ_ERROR_UNSUPPORTED;
if (f->NumPackStreams != 4
|| f->PackStreams[0] != 2
|| f->PackStreams[1] != 6
|| f->PackStreams[2] != 1
|| f->PackStreams[3] != 0
|| f->NumBonds != 3
|| f->Bonds[0].InIndex != 5 || f->Bonds[0].OutIndex != 0
|| f->Bonds[1].InIndex != 4 || f->Bonds[1].OutIndex != 1
|| f->Bonds[2].InIndex != 3 || f->Bonds[2].OutIndex != 2)
return SZ_ERROR_UNSUPPORTED;
return SZ_OK;
}
return SZ_ERROR_UNSUPPORTED;
return SZ_ERROR_UNSUPPORTED;
}
#define CASE_BRA_CONV(isa) case k_ ## isa: isa ## _Convert(outBuffer, outSize, 0, 0); break;
static SRes SzFolder_Decode2(const CSzFolder *folder,
const Byte *propsData,
const UInt64 *unpackSizes,
const UInt64 *packPositions,
ILookInStream *inStream, UInt64 startPos,
Byte *outBuffer, SizeT outSize, ISzAlloc *allocMain,
Byte *tempBuf[])
static SRes SzFolder_Decode2(const CSzFolder* folder,
const Byte* propsData,
const UInt64* unpackSizes,
const UInt64* packPositions,
ILookInStream* inStream, UInt64 startPos,
Byte* outBuffer, SizeT outSize, ISzAlloc* allocMain,
Byte* tempBuf[])
{
UInt32 ci;
SizeT tempSizes[3] = { 0, 0, 0};
SizeT tempSize3 = 0;
Byte *tempBuf3 = 0;
UInt32 ci;
SizeT tempSizes[3] = {0, 0, 0};
SizeT tempSize3 = 0;
Byte* tempBuf3 = 0;
RINOK(CheckSupportedFolder(folder));
RINOK(CheckSupportedFolder(folder));
for (ci = 0; ci < folder->NumCoders; ci++)
{
const CSzCoderInfo *coder = &folder->Coders[ci];
for (ci = 0; ci < folder->NumCoders; ci++)
{
const CSzCoderInfo* coder = &folder->Coders[ci];
if (IS_MAIN_METHOD((UInt32)coder->MethodID))
{
UInt32 si = 0;
UInt64 offset;
UInt64 inSize;
Byte *outBufCur = outBuffer;
SizeT outSizeCur = outSize;
if (folder->NumCoders == 4)
{
UInt32 indices[] = { 3, 2, 0 };
UInt64 unpackSize = unpackSizes[ci];
si = indices[ci];
if (ci < 2)
{
Byte *temp;
outSizeCur = (SizeT)unpackSize;
if (outSizeCur != unpackSize)
return SZ_ERROR_MEM;
temp = (Byte *)IAlloc_Alloc(allocMain, outSizeCur);
if (!temp && outSizeCur != 0)
return SZ_ERROR_MEM;
outBufCur = tempBuf[1 - ci] = temp;
tempSizes[1 - ci] = outSizeCur;
}
else if (ci == 2)
{
if (unpackSize > outSize) /* check it */
return SZ_ERROR_PARAM;
tempBuf3 = outBufCur = outBuffer + (outSize - (size_t)unpackSize);
tempSize3 = outSizeCur = (SizeT)unpackSize;
}
else
return SZ_ERROR_UNSUPPORTED;
}
offset = packPositions[si];
inSize = packPositions[si + 1] - offset;
RINOK(LookInStream_SeekTo(inStream, startPos + offset));
if (IS_MAIN_METHOD((UInt32)coder->MethodID))
{
UInt32 si = 0;
UInt64 offset;
UInt64 inSize;
Byte* outBufCur = outBuffer;
SizeT outSizeCur = outSize;
if (folder->NumCoders == 4)
{
UInt32 indices[] = {3, 2, 0};
UInt64 unpackSize = unpackSizes[ci];
si = indices[ci];
if (ci < 2)
{
Byte* temp;
outSizeCur = (SizeT)unpackSize;
if (outSizeCur != unpackSize)
return SZ_ERROR_MEM;
temp = (Byte*)IAlloc_Alloc(allocMain, outSizeCur);
if (!temp && outSizeCur != 0)
return SZ_ERROR_MEM;
outBufCur = tempBuf[1 - ci] = temp;
tempSizes[1 - ci] = outSizeCur;
}
else if (ci == 2)
{
if (unpackSize > outSize) /* check it */
return SZ_ERROR_PARAM;
tempBuf3 = outBufCur = outBuffer + (outSize - (size_t)unpackSize);
tempSize3 = outSizeCur = (SizeT)unpackSize;
}
else
return SZ_ERROR_UNSUPPORTED;
}
offset = packPositions[si];
inSize = packPositions[si + 1] - offset;
RINOK(LookInStream_SeekTo(inStream, startPos + offset));
if (coder->MethodID == k_Copy)
{
if (inSize != outSizeCur) /* check it */
return SZ_ERROR_DATA;
RINOK(SzDecodeCopy(inSize, inStream, outBufCur));
}
else if (coder->MethodID == k_LZMA)
{
RINOK(SzDecodeLzma(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain));
}
#ifndef _7Z_NO_METHOD_LZMA2
else if (coder->MethodID == k_LZMA2)
{
RINOK(SzDecodeLzma2(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain));
}
#endif
#ifdef _7ZIP_PPMD_SUPPPORT
if (coder->MethodID == k_Copy)
{
if (inSize != outSizeCur) /* check it */
return SZ_ERROR_DATA;
RINOK(SzDecodeCopy(inSize, inStream, outBufCur));
}
else if (coder->MethodID == k_LZMA)
{
RINOK(SzDecodeLzma(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur
, allocMain));
}
#ifndef _7Z_NO_METHOD_LZMA2
else if (coder->MethodID == k_LZMA2)
{
RINOK(SzDecodeLzma2(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur,
outSizeCur, allocMain));
}
#endif
#ifdef _7ZIP_PPMD_SUPPPORT
else if (coder->MethodID == k_PPMD)
{
RINOK(SzDecodePpmd(propsData + coder->PropsOffset, coder->PropsSize, inSize, inStream, outBufCur, outSizeCur, allocMain));
}
#endif
else
return SZ_ERROR_UNSUPPORTED;
}
else if (coder->MethodID == k_BCJ2)
{
UInt64 offset = packPositions[1];
UInt64 s3Size = packPositions[2] - offset;
#endif
else
return SZ_ERROR_UNSUPPORTED;
}
else if (coder->MethodID == k_BCJ2)
{
UInt64 offset = packPositions[1];
UInt64 s3Size = packPositions[2] - offset;
if (ci != 3)
return SZ_ERROR_UNSUPPORTED;
if (ci != 3)
return SZ_ERROR_UNSUPPORTED;
tempSizes[2] = (SizeT)s3Size;
if (tempSizes[2] != s3Size)
return SZ_ERROR_MEM;
tempBuf[2] = (Byte *)IAlloc_Alloc(allocMain, tempSizes[2]);
if (!tempBuf[2] && tempSizes[2] != 0)
return SZ_ERROR_MEM;
tempSizes[2] = (SizeT)s3Size;
if (tempSizes[2] != s3Size)
return SZ_ERROR_MEM;
tempBuf[2] = (Byte*)IAlloc_Alloc(allocMain, tempSizes[2]);
if (!tempBuf[2] && tempSizes[2] != 0)
return SZ_ERROR_MEM;
RINOK(LookInStream_SeekTo(inStream, startPos + offset));
RINOK(SzDecodeCopy(s3Size, inStream, tempBuf[2]));
RINOK(LookInStream_SeekTo(inStream, startPos + offset));
RINOK(SzDecodeCopy(s3Size, inStream, tempBuf[2]));
if ((tempSizes[0] & 3) != 0 ||
(tempSizes[1] & 3) != 0 ||
tempSize3 + tempSizes[0] + tempSizes[1] != outSize)
return SZ_ERROR_DATA;
if ((tempSizes[0] & 3) != 0 ||
(tempSizes[1] & 3) != 0 ||
tempSize3 + tempSizes[0] + tempSizes[1] != outSize)
return SZ_ERROR_DATA;
{
CBcj2Dec p;
{
CBcj2Dec p;
p.bufs[0] = tempBuf3; p.lims[0] = tempBuf3 + tempSize3;
p.bufs[1] = tempBuf[0]; p.lims[1] = tempBuf[0] + tempSizes[0];
p.bufs[2] = tempBuf[1]; p.lims[2] = tempBuf[1] + tempSizes[1];
p.bufs[3] = tempBuf[2]; p.lims[3] = tempBuf[2] + tempSizes[2];
p.bufs[0] = tempBuf3;
p.lims[0] = tempBuf3 + tempSize3;
p.bufs[1] = tempBuf[0];
p.lims[1] = tempBuf[0] + tempSizes[0];
p.bufs[2] = tempBuf[1];
p.lims[2] = tempBuf[1] + tempSizes[1];
p.bufs[3] = tempBuf[2];
p.lims[3] = tempBuf[2] + tempSizes[2];
p.dest = outBuffer;
p.destLim = outBuffer + outSize;
p.dest = outBuffer;
p.destLim = outBuffer + outSize;
Bcj2Dec_Init(&p);
RINOK(Bcj2Dec_Decode(&p));
Bcj2Dec_Init(&p);
RINOK(Bcj2Dec_Decode(&p));
{
unsigned i;
for (i = 0; i < 4; i++)
if (p.bufs[i] != p.lims[i])
return SZ_ERROR_DATA;
{
unsigned i;
for (i = 0; i < 4; i++)
if (p.bufs[i] != p.lims[i])
return SZ_ERROR_DATA;
if (!Bcj2Dec_IsFinished(&p))
return SZ_ERROR_DATA;
if (!Bcj2Dec_IsFinished(&p))
return SZ_ERROR_DATA;
if (p.dest != p.destLim
|| p.state != BCJ2_STREAM_MAIN)
return SZ_ERROR_DATA;
}
}
}
#ifndef _7Z_NO_METHODS_FILTERS
else if (ci == 1)
{
if (coder->MethodID == k_Delta)
{
if (coder->PropsSize != 1)
return SZ_ERROR_UNSUPPORTED;
{
Byte state[DELTA_STATE_SIZE];
Delta_Init(state);
Delta_Decode(state, (unsigned)(propsData[coder->PropsOffset]) + 1, outBuffer, outSize);
}
}
else
{
if (coder->PropsSize != 0)
return SZ_ERROR_UNSUPPORTED;
switch (coder->MethodID)
{
case k_BCJ:
{
UInt32 state;
x86_Convert_Init(state);
x86_Convert(outBuffer, outSize, 0, &state, 0);
break;
}
CASE_BRA_CONV(PPC)
CASE_BRA_CONV(IA64)
CASE_BRA_CONV(SPARC)
CASE_BRA_CONV(ARM)
CASE_BRA_CONV(ARMT)
default:
return SZ_ERROR_UNSUPPORTED;
}
}
}
#endif
else
return SZ_ERROR_UNSUPPORTED;
}
if (p.dest != p.destLim
|| p.state != BCJ2_STREAM_MAIN)
return SZ_ERROR_DATA;
}
}
}
#ifndef _7Z_NO_METHODS_FILTERS
else if (ci == 1)
{
if (coder->MethodID == k_Delta)
{
if (coder->PropsSize != 1)
return SZ_ERROR_UNSUPPORTED;
{
Byte state[DELTA_STATE_SIZE];
Delta_Init(state);
Delta_Decode(state, (unsigned)(propsData[coder->PropsOffset]) + 1, outBuffer, outSize);
}
}
else
{
if (coder->PropsSize != 0)
return SZ_ERROR_UNSUPPORTED;
switch (coder->MethodID)
{
case k_BCJ:
{
UInt32 state;
x86_Convert_Init(state);
x86_Convert(outBuffer, outSize, 0, &state, 0);
break;
}
CASE_BRA_CONV(PPC)
CASE_BRA_CONV(IA64)
CASE_BRA_CONV(SPARC)
CASE_BRA_CONV(ARM)
CASE_BRA_CONV(ARMT)
default:
return SZ_ERROR_UNSUPPORTED;
}
}
}
#endif
else
return SZ_ERROR_UNSUPPORTED;
}
return SZ_OK;
return SZ_OK;
}
SRes SzAr_DecodeFolder(const CSzAr *p, UInt32 folderIndex,
ILookInStream *inStream, UInt64 startPos,
Byte *outBuffer, size_t outSize,
ISzAlloc *allocMain)
SRes SzAr_DecodeFolder(const CSzAr* p, UInt32 folderIndex,
ILookInStream* inStream, UInt64 startPos,
Byte* outBuffer, size_t outSize,
ISzAlloc* allocMain)
{
SRes res;
CSzFolder folder;
CSzData sd;
SRes res;
CSzFolder folder;
CSzData sd;
const Byte *data = p->CodersData + p->FoCodersOffsets[folderIndex];
sd.Data = data;
sd.Size = p->FoCodersOffsets[folderIndex + 1] - p->FoCodersOffsets[folderIndex];
const Byte* data = p->CodersData + p->FoCodersOffsets[folderIndex];
sd.Data = data;
sd.Size = p->FoCodersOffsets[folderIndex + 1] - p->FoCodersOffsets[folderIndex];
res = SzGetNextFolderItem(&folder, &sd);
res = SzGetNextFolderItem(&folder, &sd);
if (res != SZ_OK)
return res;
if (res != SZ_OK)
return res;
if (sd.Size != 0
|| folder.UnpackStream != p->FoToMainUnpackSizeIndex[folderIndex]
|| outSize != SzAr_GetFolderUnpackSize(p, folderIndex))
return SZ_ERROR_FAIL;
{
unsigned i;
Byte *tempBuf[3] = { 0, 0, 0};
if (sd.Size != 0
|| folder.UnpackStream != p->FoToMainUnpackSizeIndex[folderIndex]
|| outSize != SzAr_GetFolderUnpackSize(p, folderIndex))
return SZ_ERROR_FAIL;
{
unsigned i;
Byte* tempBuf[3] = {0, 0, 0};
res = SzFolder_Decode2(&folder, data,
&p->CoderUnpackSizes[p->FoToCoderUnpackSizes[folderIndex]],
p->PackPositions + p->FoStartPackStreamIndex[folderIndex],
inStream, startPos,
outBuffer, (SizeT)outSize, allocMain, tempBuf);
res = SzFolder_Decode2(&folder, data,
&p->CoderUnpackSizes[p->FoToCoderUnpackSizes[folderIndex]],
p->PackPositions + p->FoStartPackStreamIndex[folderIndex],
inStream, startPos,
outBuffer, (SizeT)outSize, allocMain, tempBuf);
for (i = 0; i < 3; i++)
IAlloc_Free(allocMain, tempBuf[i]);
for (i = 0; i < 3; i++)
IAlloc_Free(allocMain, tempBuf[i]);
if (res == SZ_OK)
if (SzBitWithVals_Check(&p->FolderCRCs, folderIndex))
if (CrcCalc(outBuffer, outSize) != p->FolderCRCs.Vals[folderIndex])
res = SZ_ERROR_CRC;
if (res == SZ_OK)
if (SzBitWithVals_Check(&p->FolderCRCs, folderIndex))
if (CrcCalc(outBuffer, outSize) != p->FolderCRCs.Vals[folderIndex])
res = SZ_ERROR_CRC;
return res;
}
return res;
}
}

292
SevenZip/7zFile.c
View file

@ -27,64 +27,65 @@
#endif
void File_Construct(CSzFile *p)
void File_Construct(CSzFile* p)
{
#ifdef USE_WINDOWS_FILE
p->handle = INVALID_HANDLE_VALUE;
#else
#ifdef USE_WINDOWS_FILE
p->handle = INVALID_HANDLE_VALUE;
#else
p->file = NULL;
#endif
#endif
}
#if !defined(UNDER_CE) || !defined(USE_WINDOWS_FILE)
static WRes File_Open(CSzFile *p, const char *name, int writeMode)
static WRes File_Open(CSzFile* p, const char* name, int writeMode)
{
#ifdef USE_WINDOWS_FILE
p->handle = CreateFileA(name,
writeMode ? GENERIC_WRITE : GENERIC_READ,
FILE_SHARE_READ, NULL,
writeMode ? CREATE_ALWAYS : OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
return (p->handle != INVALID_HANDLE_VALUE) ? 0 : GetLastError();
#else
#ifdef USE_WINDOWS_FILE
p->handle = CreateFileA(name,
writeMode ? GENERIC_WRITE : GENERIC_READ,
FILE_SHARE_READ, NULL,
writeMode ? CREATE_ALWAYS : OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
return (p->handle != INVALID_HANDLE_VALUE) ? 0 : GetLastError();
#else
p->file = fopen(name, writeMode ? "wb+" : "rb");
return (p->file != 0) ? 0 :
#ifdef UNDER_CE
#ifdef UNDER_CE
2; /* ENOENT */
#else
#else
errno;
#endif
#endif
#endif
#endif
}
WRes InFile_Open(CSzFile *p, const char *name) { return File_Open(p, name, 0); }
WRes OutFile_Open(CSzFile *p, const char *name) { return File_Open(p, name, 1); }
WRes InFile_Open(CSzFile* p, const char* name) { return File_Open(p, name, 0); }
WRes OutFile_Open(CSzFile* p, const char* name) { return File_Open(p, name, 1); }
#endif
#ifdef USE_WINDOWS_FILE
static WRes File_OpenW(CSzFile *p, const WCHAR *name, int writeMode)
static WRes File_OpenW(CSzFile* p, const WCHAR* name, int writeMode)
{
p->handle = CreateFileW(name,
writeMode ? GENERIC_WRITE : GENERIC_READ,
FILE_SHARE_READ, NULL,
writeMode ? CREATE_ALWAYS : OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
return (p->handle != INVALID_HANDLE_VALUE) ? 0 : GetLastError();
p->handle = CreateFileW(name,
writeMode ? GENERIC_WRITE : GENERIC_READ,
FILE_SHARE_READ, NULL,
writeMode ? CREATE_ALWAYS : OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
return (p->handle != INVALID_HANDLE_VALUE) ? 0 : GetLastError();
}
WRes InFile_OpenW(CSzFile *p, const WCHAR *name) { return File_OpenW(p, name, 0); }
WRes OutFile_OpenW(CSzFile *p, const WCHAR *name) { return File_OpenW(p, name, 1); }
WRes InFile_OpenW(CSzFile* p, const WCHAR* name) { return File_OpenW(p, name, 0); }
WRes OutFile_OpenW(CSzFile* p, const WCHAR* name) { return File_OpenW(p, name, 1); }
#endif
WRes File_Close(CSzFile *p)
WRes File_Close(CSzFile* p)
{
#ifdef USE_WINDOWS_FILE
if (p->handle != INVALID_HANDLE_VALUE)
{
if (!CloseHandle(p->handle))
return GetLastError();
p->handle = INVALID_HANDLE_VALUE;
}
#else
#ifdef USE_WINDOWS_FILE
if (p->handle != INVALID_HANDLE_VALUE)
{
if (!CloseHandle(p->handle))
return GetLastError();
p->handle = INVALID_HANDLE_VALUE;
}
#else
if (p->file != NULL)
{
int res = fclose(p->file);
@ -92,106 +93,109 @@ WRes File_Close(CSzFile *p)
return res;
p->file = NULL;
}
#endif
return 0;
#endif
return 0;
}
WRes File_Read(CSzFile *p, void *data, size_t *size)
WRes File_Read(CSzFile* p, void* data, size_t* size)
{
size_t originalSize = *size;
if (originalSize == 0)
return 0;
size_t originalSize = *size;
if (originalSize == 0)
return 0;
#ifdef USE_WINDOWS_FILE
#ifdef USE_WINDOWS_FILE
*size = 0;
do
{
DWORD curSize = (originalSize > kChunkSizeMax) ? kChunkSizeMax : (DWORD)originalSize;
DWORD processed = 0;
BOOL res = ReadFile(p->handle, data, curSize, &processed, NULL);
data = (void *)((Byte *)data + processed);
originalSize -= processed;
*size += processed;
if (!res)
return GetLastError();
if (processed == 0)
break;
}
while (originalSize > 0);
return 0;
*size = 0;
do
{
DWORD curSize = (originalSize > kChunkSizeMax) ? kChunkSizeMax : (DWORD)originalSize;
DWORD processed = 0;
BOOL res = ReadFile(p->handle, data, curSize, &processed, NULL);
data = (void*)((Byte*)data + processed);
originalSize -= processed;
*size += processed;
if (!res)
return GetLastError();
if (processed == 0)
break;
}
while (originalSize > 0);
return 0;
#else
#else
*size = fread(data, 1, originalSize, p->file);
if (*size == originalSize)
return 0;
return ferror(p->file);
#endif
#endif
}
WRes File_Write(CSzFile *p, const void *data, size_t *size)
WRes File_Write(CSzFile* p, const void* data, size_t* size)
{
size_t originalSize = *size;
if (originalSize == 0)
return 0;
size_t originalSize = *size;
if (originalSize == 0)
return 0;
#ifdef USE_WINDOWS_FILE
#ifdef USE_WINDOWS_FILE
*size = 0;
do
{
DWORD curSize = (originalSize > kChunkSizeMax) ? kChunkSizeMax : (DWORD)originalSize;
DWORD processed = 0;
BOOL res = WriteFile(p->handle, data, curSize, &processed, NULL);
data = (void *)((Byte *)data + processed);
originalSize -= processed;
*size += processed;
if (!res)
return GetLastError();
if (processed == 0)
break;
}
while (originalSize > 0);
return 0;
*size = 0;
do
{
DWORD curSize = (originalSize > kChunkSizeMax) ? kChunkSizeMax : (DWORD)originalSize;
DWORD processed = 0;
BOOL res = WriteFile(p->handle, data, curSize, &processed, NULL);
data = (void*)((Byte*)data + processed);
originalSize -= processed;
*size += processed;
if (!res)
return GetLastError();
if (processed == 0)
break;
}
while (originalSize > 0);
return 0;
#else
#else
*size = fwrite(data, 1, originalSize, p->file);
if (*size == originalSize)
return 0;
return ferror(p->file);
#endif
#endif
}
WRes File_Seek(CSzFile *p, Int64 *pos, ESzSeek origin)
WRes File_Seek(CSzFile* p, Int64* pos, ESzSeek origin)
{
#ifdef USE_WINDOWS_FILE
#ifdef USE_WINDOWS_FILE
LARGE_INTEGER value;
DWORD moveMethod;
value.LowPart = (DWORD)*pos;
value.HighPart = (LONG)((UInt64)*pos >> 16 >> 16); /* for case when UInt64 is 32-bit only */
switch (origin)
{
case SZ_SEEK_SET: moveMethod = FILE_BEGIN; break;
case SZ_SEEK_CUR: moveMethod = FILE_CURRENT; break;
case SZ_SEEK_END: moveMethod = FILE_END; break;
default: return ERROR_INVALID_PARAMETER;
}
value.LowPart = SetFilePointer(p->handle, value.LowPart, &value.HighPart, moveMethod);
if (value.LowPart == 0xFFFFFFFF)
{
WRes res = GetLastError();
if (res != NO_ERROR)
return res;
}
*pos = ((Int64)value.HighPart << 32) | value.LowPart;
return 0;
LARGE_INTEGER value;
DWORD moveMethod;
value.LowPart = (DWORD)*pos;
value.HighPart = (LONG)((UInt64)*pos >> 16 >> 16); /* for case when UInt64 is 32-bit only */
switch (origin)
{
case SZ_SEEK_SET: moveMethod = FILE_BEGIN;
break;
case SZ_SEEK_CUR: moveMethod = FILE_CURRENT;
break;
case SZ_SEEK_END: moveMethod = FILE_END;
break;
default: return ERROR_INVALID_PARAMETER;
}
value.LowPart = SetFilePointer(p->handle, value.LowPart, &value.HighPart, moveMethod);
if (value.LowPart == 0xFFFFFFFF)
{
WRes res = GetLastError();
if (res != NO_ERROR)
return res;
}
*pos = ((Int64)value.HighPart << 32) | value.LowPart;
return 0;
#else
#else
int moveMethod;
int res;
@ -206,25 +210,25 @@ WRes File_Seek(CSzFile *p, Int64 *pos, ESzSeek origin)
*pos = ftell(p->file);
return res;
#endif
#endif
}
WRes File_GetLength(CSzFile *p, UInt64 *length)
WRes File_GetLength(CSzFile* p, UInt64* length)
{
#ifdef USE_WINDOWS_FILE
#ifdef USE_WINDOWS_FILE
DWORD sizeHigh;
DWORD sizeLow = GetFileSize(p->handle, &sizeHigh);
if (sizeLow == 0xFFFFFFFF)
{
DWORD res = GetLastError();
if (res != NO_ERROR)
return res;
}
*length = (((UInt64)sizeHigh) << 32) + sizeLow;
return 0;
DWORD sizeHigh;
DWORD sizeLow = GetFileSize(p->handle, &sizeHigh);
if (sizeLow == 0xFFFFFFFF)
{
DWORD res = GetLastError();
if (res != NO_ERROR)
return res;
}
*length = (((UInt64)sizeHigh) << 32) + sizeLow;
return 0;
#else
#else
long pos = ftell(p->file);
int res = fseek(p->file, 0, SEEK_END);
@ -232,55 +236,55 @@ WRes File_GetLength(CSzFile *p, UInt64 *length)
fseek(p->file, pos, SEEK_SET);
return res;
#endif
#endif
}
/* ---------- FileSeqInStream ---------- */
static SRes FileSeqInStream_Read(void *pp, void *buf, size_t *size)
static SRes FileSeqInStream_Read(void* pp, void* buf, size_t* size)
{
CFileSeqInStream *p = (CFileSeqInStream *)pp;
return File_Read(&p->file, buf, size) == 0 ? SZ_OK : SZ_ERROR_READ;
CFileSeqInStream* p = (CFileSeqInStream*)pp;
return File_Read(&p->file, buf, size) == 0 ? SZ_OK : SZ_ERROR_READ;
}
void FileSeqInStream_CreateVTable(CFileSeqInStream *p)
void FileSeqInStream_CreateVTable(CFileSeqInStream* p)
{
p->s.Read = FileSeqInStream_Read;
p->s.Read = FileSeqInStream_Read;
}
/* ---------- FileInStream ---------- */
static SRes FileInStream_Read(void *pp, void *buf, size_t *size)
static SRes FileInStream_Read(void* pp, void* buf, size_t* size)
{
CFileInStream *p = (CFileInStream *)pp;
return (File_Read(&p->file, buf, size) == 0) ? SZ_OK : SZ_ERROR_READ;
CFileInStream* p = (CFileInStream*)pp;
return (File_Read(&p->file, buf, size) == 0) ? SZ_OK : SZ_ERROR_READ;
}
static SRes FileInStream_Seek(void *pp, Int64 *pos, ESzSeek origin)
static SRes FileInStream_Seek(void* pp, Int64* pos, ESzSeek origin)
{
CFileInStream *p = (CFileInStream *)pp;
return File_Seek(&p->file, pos, origin);
CFileInStream* p = (CFileInStream*)pp;
return File_Seek(&p->file, pos, origin);
}
void FileInStream_CreateVTable(CFileInStream *p)
void FileInStream_CreateVTable(CFileInStream* p)
{
p->s.Read = FileInStream_Read;
p->s.Seek = FileInStream_Seek;
p->s.Read = FileInStream_Read;
p->s.Seek = FileInStream_Seek;
}
/* ---------- FileOutStream ---------- */
static size_t FileOutStream_Write(void *pp, const void *data, size_t size)
static size_t FileOutStream_Write(void* pp, const void* data, size_t size)
{
CFileOutStream *p = (CFileOutStream *)pp;
File_Write(&p->file, data, &size);
return size;
CFileOutStream* p = (CFileOutStream*)pp;
File_Write(&p->file, data, &size);
return size;
}
void FileOutStream_CreateVTable(CFileOutStream *p)
void FileOutStream_CreateVTable(CFileOutStream* p)
{
p->s.Write = FileOutStream_Write;
p->s.Write = FileOutStream_Write;
}

46
SevenZip/7zFile.h
View file

@ -22,61 +22,61 @@ EXTERN_C_BEGIN
typedef struct
{
#ifdef USE_WINDOWS_FILE
HANDLE handle;
#else
#ifdef USE_WINDOWS_FILE
HANDLE handle;
#else
FILE *file;
#endif
#endif
} CSzFile;
void File_Construct(CSzFile *p);
void File_Construct(CSzFile* p);
#if !defined(UNDER_CE) || !defined(USE_WINDOWS_FILE)
WRes InFile_Open(CSzFile *p, const char *name);
WRes OutFile_Open(CSzFile *p, const char *name);
WRes InFile_Open(CSzFile* p, const char* name);
WRes OutFile_Open(CSzFile* p, const char* name);
#endif
#ifdef USE_WINDOWS_FILE
WRes InFile_OpenW(CSzFile *p, const WCHAR *name);
WRes OutFile_OpenW(CSzFile *p, const WCHAR *name);
WRes InFile_OpenW(CSzFile* p, const WCHAR* name);
WRes OutFile_OpenW(CSzFile* p, const WCHAR* name);
#endif
WRes File_Close(CSzFile *p);
WRes File_Close(CSzFile* p);
/* reads max(*size, remain file's size) bytes */
WRes File_Read(CSzFile *p, void *data, size_t *size);
WRes File_Read(CSzFile* p, void* data, size_t* size);
/* writes *size bytes */
WRes File_Write(CSzFile *p, const void *data, size_t *size);
WRes File_Write(CSzFile* p, const void* data, size_t* size);
WRes File_Seek(CSzFile *p, Int64 *pos, ESzSeek origin);
WRes File_GetLength(CSzFile *p, UInt64 *length);
WRes File_Seek(CSzFile* p, Int64* pos, ESzSeek origin);
WRes File_GetLength(CSzFile* p, UInt64* length);
/* ---------- FileInStream ---------- */
typedef struct
{
ISeqInStream s;
CSzFile file;
ISeqInStream s;
CSzFile file;
} CFileSeqInStream;
void FileSeqInStream_CreateVTable(CFileSeqInStream *p);
void FileSeqInStream_CreateVTable(CFileSeqInStream* p);
typedef struct
{
ISeekInStream s;
CSzFile file;
ISeekInStream s;
CSzFile file;
} CFileInStream;
void FileInStream_CreateVTable(CFileInStream *p);
void FileInStream_CreateVTable(CFileInStream* p);
typedef struct
{
ISeqOutStream s;
CSzFile file;
ISeqOutStream s;
CSzFile file;
} CFileOutStream;
void FileOutStream_CreateVTable(CFileOutStream *p);
void FileOutStream_CreateVTable(CFileOutStream* p);
EXTERN_C_END

30
SevenZip/7zMemBuffer.c
View file

@ -2,10 +2,10 @@
#include "7zMemBuffer.h"
#include <memory.h>
WRes MemBuffer_Read(CSzMemBuffer *p, void *data, size_t *size)
WRes MemBuffer_Read(CSzMemBuffer* p, void* data, size_t* size)
{
size_t originalSize = *size;
if(originalSize == 0)
if (originalSize == 0)
return 0;
size_t length = (size_t)(p->pos + (Int64)(*size) > p->size ? p->size - p->pos - 1 : *size);
@ -14,31 +14,35 @@ WRes MemBuffer_Read(CSzMemBuffer *p, void *data, size_t *size)
return 0;
}
WRes MemBuffer_Seek(CSzMemBuffer *p, Int64 *pos, ESzSeek origin)
WRes MemBuffer_Seek(CSzMemBuffer* p, Int64* pos, ESzSeek origin)
{
switch(origin) {
case SZ_SEEK_SET: p->pos = 0 + *pos; break;
case SZ_SEEK_CUR: p->pos += *pos; break;
case SZ_SEEK_END: p->pos = p->size - *pos; break;
default: return 1;
switch (origin)
{
case SZ_SEEK_SET: p->pos = 0 + *pos;
break;
case SZ_SEEK_CUR: p->pos += *pos;
break;
case SZ_SEEK_END: p->pos = p->size - *pos;
break;
default: return 1;
}
*pos = p->pos;
return 0;
}
static SRes MemBufferInStream_Read(void *pp, void *buf, size_t *size)
static SRes MemBufferInStream_Read(void* pp, void* buf, size_t* size)
{
CMemBufferInStream *p = (CMemBufferInStream *)pp;
CMemBufferInStream* p = (CMemBufferInStream*)pp;
return (MemBuffer_Read(&p->buffer, buf, size) == 0) ? SZ_OK : SZ_ERROR_READ;
}
static SRes MemBufferInStream_Seek(void *pp, Int64 *pos, ESzSeek origin)
static SRes MemBufferInStream_Seek(void* pp, Int64* pos, ESzSeek origin)
{
CMemBufferInStream *p = (CMemBufferInStream *)pp;
CMemBufferInStream* p = (CMemBufferInStream*)pp;
return MemBuffer_Seek(&p->buffer, pos, origin);
}
void MemBufferInit(CMemBufferInStream *memBuferStream, CLookToRead *lookStream, void* buffer, size_t size)
void MemBufferInit(CMemBufferInStream* memBuferStream, CLookToRead* lookStream, void* buffer, size_t size)
{
memBuferStream->buffer.buffer = buffer;
memBuferStream->buffer.pos = 0;

10
SevenZip/7zMemBuffer.h
View file

@ -14,16 +14,16 @@ typedef struct
} CSzMemBuffer;
/* reads max(*size, remain file's size) bytes */
WRes MemBuffer_Read(CSzMemBuffer *p, void *data, size_t *size);
WRes MemBuffer_Seek(CSzMemBuffer *p, Int64 *pos, ESzSeek origin);
WRes MemBuffer_Read(CSzMemBuffer* p, void* data, size_t* size);
WRes MemBuffer_Seek(CSzMemBuffer* p, Int64* pos, ESzSeek origin);
/* ---------- FileInStream ---------- */
typedef struct
{
ISeekInStream s;
CSzMemBuffer buffer;
ISeekInStream s;
CSzMemBuffer buffer;
} CMemBufferInStream;
void MemBufferInit(CMemBufferInStream *memBuferStream, CLookToRead *lookStream, void* buffer, size_t size);
void MemBufferInit(CMemBufferInStream* memBuferStream, CLookToRead* lookStream, void* buffer, size_t size);
EXTERN_C_END

216
SevenZip/7zStream.c
View file

@ -7,165 +7,163 @@
#include "7zTypes.h"
SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType)
SRes SeqInStream_Read2(ISeqInStream* stream, void* buf, size_t size, SRes errorType)
{
while (size != 0)
{
size_t processed = size;
RINOK(stream->Read(stream, buf, &processed));
if (processed == 0)
return errorType;
buf = (void *)((Byte *)buf + processed);
size -= processed;
}
return SZ_OK;
while (size != 0)
{
size_t processed = size;
RINOK(stream->Read(stream, buf, &processed));
if (processed == 0)
return errorType;
buf = (void*)((Byte*)buf + processed);
size -= processed;
}
return SZ_OK;
}
SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size)
SRes SeqInStream_Read(ISeqInStream* stream, void* buf, size_t size)
{
return SeqInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF);
return SeqInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF);
}
SRes SeqInStream_ReadByte(ISeqInStream *stream, Byte *buf)
SRes SeqInStream_ReadByte(ISeqInStream* stream, Byte* buf)
{
size_t processed = 1;
RINOK(stream->Read(stream, buf, &processed));
return (processed == 1) ? SZ_OK : SZ_ERROR_INPUT_EOF;
size_t processed = 1;
RINOK(stream->Read(stream, buf, &processed));
return (processed == 1) ? SZ_OK : SZ_ERROR_INPUT_EOF;
}
SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset)
SRes LookInStream_SeekTo(ILookInStream* stream, UInt64 offset)
{
Int64 t = offset;
return stream->Seek(stream, &t, SZ_SEEK_SET);
Int64 t = offset;
return stream->Seek(stream, &t, SZ_SEEK_SET);
}
SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size)
SRes LookInStream_LookRead(ILookInStream* stream, void* buf, size_t* size)
{
const void *lookBuf;
if (*size == 0)
return SZ_OK;
RINOK(stream->Look(stream, &lookBuf, size));
memcpy(buf, lookBuf, *size);
return stream->Skip(stream, *size);
const void* lookBuf;
if (*size == 0)
return SZ_OK;
RINOK(stream->Look(stream, &lookBuf, size));
memcpy(buf, lookBuf, *size);
return stream->Skip(stream, *size);
}
SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType)
SRes LookInStream_Read2(ILookInStream* stream, void* buf, size_t size, SRes errorType)
{
while (size != 0)
{
size_t processed = size;
RINOK(stream->Read(stream, buf, &processed));
if (processed == 0)
return errorType;
buf = (void *)((Byte *)buf + processed);
size -= processed;
}
return SZ_OK;
while (size != 0)
{
size_t processed = size;
RINOK(stream->Read(stream, buf, &processed));
if (processed == 0)
return errorType;
buf = (void*)((Byte*)buf + processed);
size -= processed;
}
return SZ_OK;
}
SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size)
SRes LookInStream_Read(ILookInStream* stream, void* buf, size_t size)
{
return LookInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF);
return LookInStream_Read2(stream, buf, size, SZ_ERROR_INPUT_EOF);
}
static SRes LookToRead_Look_Lookahead(void *pp, const void **buf, size_t *size)
static SRes LookToRead_Look_Lookahead(void* pp, const void** buf, size_t* size)
{
SRes res = SZ_OK;
CLookToRead *p = (CLookToRead *)pp;
size_t size2 = p->size - p->pos;
if (size2 == 0 && *size > 0)
{
p->pos = 0;
size2 = LookToRead_BUF_SIZE;
res = p->realStream->Read(p->realStream, p->buf, &size2);
p->size = size2;
}
if (size2 < *size)
*size = size2;
*buf = p->buf + p->pos;
return res;
SRes res = SZ_OK;
CLookToRead* p = (CLookToRead*)pp;
size_t size2 = p->size - p->pos;
if (size2 == 0 && *size > 0)
{
p->pos = 0;
size2 = LookToRead_BUF_SIZE;
res = p->realStream->Read(p->realStream, p->buf, &size2);
p->size = size2;
}
if (size2 < *size)
*size = size2;
*buf = p->buf + p->pos;
return res;
}
static SRes LookToRead_Look_Exact(void *pp, const void **buf, size_t *size)
static SRes LookToRead_Look_Exact(void* pp, const void** buf, size_t* size)
{
SRes res = SZ_OK;
CLookToRead *p = (CLookToRead *)pp;
size_t size2 = p->size - p->pos;
if (size2 == 0 && *size > 0)
{
p->pos = 0;
if (*size > LookToRead_BUF_SIZE)
*size = LookToRead_BUF_SIZE;
res = p->realStream->Read(p->realStream, p->buf, size);
size2 = p->size = *size;
}
if (size2 < *size)
*size = size2;
*buf = p->buf + p->pos;
return res;
SRes res = SZ_OK;
CLookToRead* p = (CLookToRead*)pp;
size_t size2 = p->size - p->pos;
if (size2 == 0 && *size > 0)
{
p->pos = 0;
if (*size > LookToRead_BUF_SIZE)
*size = LookToRead_BUF_SIZE;
res = p->realStream->Read(p->realStream, p->buf, size);
size2 = p->size = *size;
}
if (size2 < *size)
*size = size2;
*buf = p->buf + p->pos;
return res;
}
static SRes LookToRead_Skip(void *pp, size_t offset)
static SRes LookToRead_Skip(void* pp, size_t offset)
{
CLookToRead *p = (CLookToRead *)pp;
p->pos += offset;
return SZ_OK;
CLookToRead* p = (CLookToRead*)pp;
p->pos += offset;
return SZ_OK;
}
static SRes LookToRead_Read(void *pp, void *buf, size_t *size)
static SRes LookToRead_Read(void* pp, void* buf, size_t* size)
{
CLookToRead *p = (CLookToRead *)pp;
size_t rem = p->size - p->pos;
if (rem == 0)
return p->realStream->Read(p->realStream, buf, size);
if (rem > *size)
rem = *size;
memcpy(buf, p->buf + p->pos, rem);
p->pos += rem;
*size = rem;
return SZ_OK;
CLookToRead* p = (CLookToRead*)pp;
size_t rem = p->size - p->pos;
if (rem == 0)
return p->realStream->Read(p->realStream, buf, size);
if (rem > *size)
rem = *size;
memcpy(buf, p->buf + p->pos, rem);
p->pos += rem;
*size = rem;
return SZ_OK;
}
static SRes LookToRead_Seek(void *pp, Int64 *pos, ESzSeek origin)
static SRes LookToRead_Seek(void* pp, Int64* pos, ESzSeek origin)
{
CLookToRead *p = (CLookToRead *)pp;
p->pos = p->size = 0;
return p->realStream->Seek(p->realStream, pos, origin);
CLookToRead* p = (CLookToRead*)pp;
p->pos = p->size = 0;
return p->realStream->Seek(p->realStream, pos, origin);
}
void LookToRead_CreateVTable(CLookToRead *p, int lookahead)
void LookToRead_CreateVTable(CLookToRead* p, int lookahead)
{
p->s.Look = lookahead ?
LookToRead_Look_Lookahead :
LookToRead_Look_Exact;
p->s.Skip = LookToRead_Skip;
p->s.Read = LookToRead_Read;
p->s.Seek = LookToRead_Seek;
p->s.Look = lookahead ? LookToRead_Look_Lookahead : LookToRead_Look_Exact;
p->s.Skip = LookToRead_Skip;
p->s.Read = LookToRead_Read;
p->s.Seek = LookToRead_Seek;
}
void LookToRead_Init(CLookToRead *p)
void LookToRead_Init(CLookToRead* p)
{
p->pos = p->size = 0;
p->pos = p->size = 0;
}
static SRes SecToLook_Read(void *pp, void *buf, size_t *size)
static SRes SecToLook_Read(void* pp, void* buf, size_t* size)
{
CSecToLook *p = (CSecToLook *)pp;
return LookInStream_LookRead(p->realStream, buf, size);
CSecToLook* p = (CSecToLook*)pp;
return LookInStream_LookRead(p->realStream, buf, size);
}
void SecToLook_CreateVTable(CSecToLook *p)
void SecToLook_CreateVTable(CSecToLook* p)
{
p->s.Read = SecToLook_Read;
p->s.Read = SecToLook_Read;
}
static SRes SecToRead_Read(void *pp, void *buf, size_t *size)
static SRes SecToRead_Read(void* pp, void* buf, size_t* size)
{
CSecToRead *p = (CSecToRead *)pp;
return p->realStream->Read(p->realStream, buf, size);
CSecToRead* p = (CSecToRead*)pp;
return p->realStream->Read(p->realStream, buf, size);
}
void SecToRead_CreateVTable(CSecToRead *p)
void SecToRead_CreateVTable(CSecToRead* p)
{
p->s.Read = SecToRead_Read;
p->s.Read = SecToRead_Read;
}

94
SevenZip/7zTypes.h
View file

@ -128,108 +128,108 @@ typedef int Bool;
typedef struct
{
Byte (*Read)(void *p); /* reads one byte, returns 0 in case of EOF or error */
Byte (*Read)(void* p); /* reads one byte, returns 0 in case of EOF or error */
} IByteIn;
typedef struct
{
void (*Write)(void *p, Byte b);
void (*Write)(void* p, Byte b);
} IByteOut;
typedef struct
{
SRes (*Read)(void *p, void *buf, size_t *size);
/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
(output(*size) < input(*size)) is allowed */
SRes (*Read)(void* p, void* buf, size_t* size);
/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
(output(*size) < input(*size)) is allowed */
} ISeqInStream;
/* it can return SZ_ERROR_INPUT_EOF */
SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size);
SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType);
SRes SeqInStream_ReadByte(ISeqInStream *stream, Byte *buf);
SRes SeqInStream_Read(ISeqInStream* stream, void* buf, size_t size);
SRes SeqInStream_Read2(ISeqInStream* stream, void* buf, size_t size, SRes errorType);
SRes SeqInStream_ReadByte(ISeqInStream* stream, Byte* buf);
typedef struct
{
size_t (*Write)(void *p, const void *buf, size_t size);
/* Returns: result - the number of actually written bytes.
(result < size) means error */
size_t (*Write)(void* p, const void* buf, size_t size);
/* Returns: result - the number of actually written bytes.
(result < size) means error */
} ISeqOutStream;
typedef enum
{
SZ_SEEK_SET = 0,
SZ_SEEK_CUR = 1,
SZ_SEEK_END = 2
SZ_SEEK_SET = 0,
SZ_SEEK_CUR = 1,
SZ_SEEK_END = 2
} ESzSeek;
typedef struct
{
SRes (*Read)(void *p, void *buf, size_t *size); /* same as ISeqInStream::Read */
SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
SRes (*Read)(void* p, void* buf, size_t* size); /* same as ISeqInStream::Read */
SRes (*Seek)(void* p, Int64* pos, ESzSeek origin);
} ISeekInStream;
typedef struct
{
SRes (*Look)(void *p, const void **buf, size_t *size);
/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
(output(*size) > input(*size)) is not allowed
(output(*size) < input(*size)) is allowed */
SRes (*Skip)(void *p, size_t offset);
/* offset must be <= output(*size) of Look */
SRes (*Look)(void* p, const void** buf, size_t* size);
/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
(output(*size) > input(*size)) is not allowed
(output(*size) < input(*size)) is allowed */
SRes (*Skip)(void* p, size_t offset);
/* offset must be <= output(*size) of Look */
SRes (*Read)(void *p, void *buf, size_t *size);
/* reads directly (without buffer). It's same as ISeqInStream::Read */
SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
SRes (*Read)(void* p, void* buf, size_t* size);
/* reads directly (without buffer). It's same as ISeqInStream::Read */
SRes (*Seek)(void* p, Int64* pos, ESzSeek origin);
} ILookInStream;
SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size);
SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset);
SRes LookInStream_LookRead(ILookInStream* stream, void* buf, size_t* size);
SRes LookInStream_SeekTo(ILookInStream* stream, UInt64 offset);
/* reads via ILookInStream::Read */
SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType);
SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size);
SRes LookInStream_Read2(ILookInStream* stream, void* buf, size_t size, SRes errorType);
SRes LookInStream_Read(ILookInStream* stream, void* buf, size_t size);
#define LookToRead_BUF_SIZE (1 << 14)
typedef struct
{
ILookInStream s;
ISeekInStream *realStream;
size_t pos;
size_t size;
Byte buf[LookToRead_BUF_SIZE];
ILookInStream s;
ISeekInStream* realStream;
size_t pos;
size_t size;
Byte buf[LookToRead_BUF_SIZE];
} CLookToRead;
void LookToRead_CreateVTable(CLookToRead *p, int lookahead);
void LookToRead_Init(CLookToRead *p);
void LookToRead_CreateVTable(CLookToRead* p, int lookahead);
void LookToRead_Init(CLookToRead* p);
typedef struct
{
ISeqInStream s;
ILookInStream *realStream;
ISeqInStream s;
ILookInStream* realStream;
} CSecToLook;
void SecToLook_CreateVTable(CSecToLook *p);
void SecToLook_CreateVTable(CSecToLook* p);
typedef struct
{
ISeqInStream s;
ILookInStream *realStream;
ISeqInStream s;
ILookInStream* realStream;
} CSecToRead;
void SecToRead_CreateVTable(CSecToRead *p);
void SecToRead_CreateVTable(CSecToRead* p);
typedef struct
{
SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize);
/* Returns: result. (result != SZ_OK) means break.
Value (UInt64)(Int64)-1 for size means unknown value. */
SRes (*Progress)(void* p, UInt64 inSize, UInt64 outSize);
/* Returns: result. (result != SZ_OK) means break.
Value (UInt64)(Int64)-1 for size means unknown value. */
} ICompressProgress;
typedef struct
{
void *(*Alloc)(void *p, size_t size);
void (*Free)(void *p, void *address); /* address can be 0 */
void*(*Alloc)(void* p, size_t size);
void (*Free)(void* p, void* address); /* address can be 0 */
} ISzAlloc;
#define IAlloc_Alloc(p, size) (p)->Alloc((p), size)

408
SevenZip/Bcj2.c
View file

@ -17,240 +17,240 @@
#define _UPDATE_0 p->range = bound; *prob = (CProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits));
#define _UPDATE_1 p->range -= bound; p->code -= bound; *prob = (CProb)(ttt - (ttt >> kNumMoveBits));
void Bcj2Dec_Init(CBcj2Dec *p)
void Bcj2Dec_Init(CBcj2Dec* p)
{
unsigned i;
unsigned i;
p->state = BCJ2_DEC_STATE_OK;
p->ip = 0;
p->temp[3] = 0;
p->range = 0;
p->code = 0;
for (i = 0; i < sizeof(p->probs) / sizeof(p->probs[0]); i++)
p->probs[i] = kBitModelTotal >> 1;
p->state = BCJ2_DEC_STATE_OK;
p->ip = 0;
p->temp[3] = 0;
p->range = 0;
p->code = 0;
for (i = 0; i < sizeof(p->probs) / sizeof(p->probs[0]); i++)
p->probs[i] = kBitModelTotal >> 1;
}
SRes Bcj2Dec_Decode(CBcj2Dec *p)
SRes Bcj2Dec_Decode(CBcj2Dec* p)
{
if (p->range <= 5)
{
p->state = BCJ2_DEC_STATE_OK;
for (; p->range != 5; p->range++)
{
if (p->range == 1 && p->code != 0)
return SZ_ERROR_DATA;
if (p->range <= 5)
{
p->state = BCJ2_DEC_STATE_OK;
for (; p->range != 5; p->range++)
{
if (p->range == 1 && p->code != 0)
return SZ_ERROR_DATA;
if (p->bufs[BCJ2_STREAM_RC] == p->lims[BCJ2_STREAM_RC])
{
p->state = BCJ2_STREAM_RC;
return SZ_OK;
}
if (p->bufs[BCJ2_STREAM_RC] == p->lims[BCJ2_STREAM_RC])
{
p->state = BCJ2_STREAM_RC;
return SZ_OK;
}
p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++;
}
p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++;
}
if (p->code == 0xFFFFFFFF)
return SZ_ERROR_DATA;
if (p->code == 0xFFFFFFFF)
return SZ_ERROR_DATA;
p->range = 0xFFFFFFFF;
}
else if (p->state >= BCJ2_DEC_STATE_ORIG_0)
{
while (p->state <= BCJ2_DEC_STATE_ORIG_3)
{
Byte *dest = p->dest;
if (dest == p->destLim)
return SZ_OK;
*dest = p->temp[p->state++ - BCJ2_DEC_STATE_ORIG_0];
p->dest = dest + 1;
}
}
p->range = 0xFFFFFFFF;
}
else if (p->state >= BCJ2_DEC_STATE_ORIG_0)
{
while (p->state <= BCJ2_DEC_STATE_ORIG_3)
{
Byte* dest = p->dest;
if (dest == p->destLim)
return SZ_OK;
*dest = p->temp[p->state++ - BCJ2_DEC_STATE_ORIG_0];
p->dest = dest + 1;
}
}
/*
if (BCJ2_IS_32BIT_STREAM(p->state))
{
const Byte *cur = p->bufs[p->state];
if (cur == p->lims[p->state])
return SZ_OK;
p->bufs[p->state] = cur + 4;
/*
if (BCJ2_IS_32BIT_STREAM(p->state))
{
const Byte *cur = p->bufs[p->state];
if (cur == p->lims[p->state])
return SZ_OK;
p->bufs[p->state] = cur + 4;
{
UInt32 val;
Byte *dest;
SizeT rem;
{
UInt32 val;
Byte *dest;
SizeT rem;
p->ip += 4;
val = GetBe32(cur) - p->ip;
dest = p->dest;
rem = p->destLim - dest;
if (rem < 4)
{
SizeT i;
SetUi32(p->temp, val);
for (i = 0; i < rem; i++)
dest[i] = p->temp[i];
p->dest = dest + rem;
p->state = BCJ2_DEC_STATE_ORIG_0 + (unsigned)rem;
return SZ_OK;
}
SetUi32(dest, val);
p->temp[3] = (Byte)(val >> 24);
p->dest = dest + 4;
p->state = BCJ2_DEC_STATE_OK;
}
}
*/
p->ip += 4;
val = GetBe32(cur) - p->ip;
dest = p->dest;
rem = p->destLim - dest;
if (rem < 4)
{
SizeT i;
SetUi32(p->temp, val);
for (i = 0; i < rem; i++)
dest[i] = p->temp[i];
p->dest = dest + rem;
p->state = BCJ2_DEC_STATE_ORIG_0 + (unsigned)rem;
return SZ_OK;
}
SetUi32(dest, val);
p->temp[3] = (Byte)(val >> 24);
p->dest = dest + 4;
p->state = BCJ2_DEC_STATE_OK;
}
}
*/
for (;;)
{
if (BCJ2_IS_32BIT_STREAM(p->state))
p->state = BCJ2_DEC_STATE_OK;
else
{
if (p->range < kTopValue)
{
if (p->bufs[BCJ2_STREAM_RC] == p->lims[BCJ2_STREAM_RC])
{
p->state = BCJ2_STREAM_RC;
return SZ_OK;
}
p->range <<= 8;
p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++;
}
for (;;)
{
if (BCJ2_IS_32BIT_STREAM(p->state))
p->state = BCJ2_DEC_STATE_OK;
else
{
if (p->range < kTopValue)
{
if (p->bufs[BCJ2_STREAM_RC] == p->lims[BCJ2_STREAM_RC])
{
p->state = BCJ2_STREAM_RC;
return SZ_OK;
}
p->range <<= 8;
p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++;
}
{
const Byte *src = p->bufs[BCJ2_STREAM_MAIN];
const Byte *srcLim;
Byte *dest;
SizeT num = p->lims[BCJ2_STREAM_MAIN] - src;
{
const Byte* src = p->bufs[BCJ2_STREAM_MAIN];
const Byte* srcLim;
Byte* dest;
SizeT num = p->lims[BCJ2_STREAM_MAIN] - src;
if (num == 0)
{
p->state = BCJ2_STREAM_MAIN;
return SZ_OK;
}
if (num == 0)
{
p->state = BCJ2_STREAM_MAIN;
return SZ_OK;
}
dest = p->dest;
if (num > (SizeT)(p->destLim - dest))
{
num = p->destLim - dest;
if (num == 0)
{
p->state = BCJ2_DEC_STATE_ORIG;
return SZ_OK;
}
}
dest = p->dest;
if (num > (SizeT)(p->destLim - dest))
{
num = p->destLim - dest;
if (num == 0)
{
p->state = BCJ2_DEC_STATE_ORIG;
return SZ_OK;
}
}
srcLim = src + num;
srcLim = src + num;
if (p->temp[3] == 0x0F && (src[0] & 0xF0) == 0x80)
*dest = src[0];
else for (;;)
{
Byte b = *src;
*dest = b;
if (b != 0x0F)
{
if ((b & 0xFE) == 0xE8)
break;
dest++;
if (++src != srcLim)
continue;
break;
}
dest++;
if (++src == srcLim)
break;
if ((*src & 0xF0) != 0x80)
continue;
*dest = *src;
break;
}
if (p->temp[3] == 0x0F && (src[0] & 0xF0) == 0x80)
*dest = src[0];
else
for (;;)
{
Byte b = *src;
*dest = b;
if (b != 0x0F)
{
if ((b & 0xFE) == 0xE8)
break;
dest++;
if (++src != srcLim)
continue;
break;
}
dest++;
if (++src == srcLim)
break;
if ((*src & 0xF0) != 0x80)
continue;
*dest = *src;
break;
}
num = src - p->bufs[BCJ2_STREAM_MAIN];
num = src - p->bufs[BCJ2_STREAM_MAIN];
if (src == srcLim)
{
p->temp[3] = src[-1];
p->bufs[BCJ2_STREAM_MAIN] = src;
p->ip += (UInt32)num;
p->dest += num;
p->state =
p->bufs[BCJ2_STREAM_MAIN] ==
p->lims[BCJ2_STREAM_MAIN] ?
(unsigned)BCJ2_STREAM_MAIN :
(unsigned)BCJ2_DEC_STATE_ORIG;
return SZ_OK;
}
if (src == srcLim)
{
p->temp[3] = src[-1];
p->bufs[BCJ2_STREAM_MAIN] = src;
p->ip += (UInt32)num;
p->dest += num;
p->state =
p->bufs[BCJ2_STREAM_MAIN] ==
p->lims[BCJ2_STREAM_MAIN]
? (unsigned)BCJ2_STREAM_MAIN
: (unsigned)BCJ2_DEC_STATE_ORIG;
return SZ_OK;
}
{
UInt32 bound, ttt;
CProb *prob;
Byte b = src[0];
Byte prev = (Byte)(num == 0 ? p->temp[3] : src[-1]);
{
UInt32 bound, ttt;
CProb* prob;
Byte b = src[0];
Byte prev = (Byte)(num == 0 ? p->temp[3] : src[-1]);
p->temp[3] = b;
p->bufs[BCJ2_STREAM_MAIN] = src + 1;
num++;
p->ip += (UInt32)num;
p->dest += num;
p->temp[3] = b;
p->bufs[BCJ2_STREAM_MAIN] = src + 1;
num++;
p->ip += (UInt32)num;
p->dest += num;
prob = p->probs + (unsigned)(b == 0xE8 ? 2 + (unsigned)prev : (b == 0xE9 ? 1 : 0));
prob = p->probs + (unsigned)(b == 0xE8 ? 2 + (unsigned)prev : (b == 0xE9 ? 1 : 0));
_IF_BIT_0
{
_UPDATE_0
continue;
}
_UPDATE_1
_IF_BIT_0
{
_UPDATE_0
continue;
}
_UPDATE_1
}
}
}
}
}
}
{
UInt32 val;
unsigned cj = (p->temp[3] == 0xE8) ? BCJ2_STREAM_CALL : BCJ2_STREAM_JUMP;
const Byte* cur = p->bufs[cj];
Byte* dest;
SizeT rem;
{
UInt32 val;
unsigned cj = (p->temp[3] == 0xE8) ? BCJ2_STREAM_CALL : BCJ2_STREAM_JUMP;
const Byte *cur = p->bufs[cj];
Byte *dest;
SizeT rem;
if (cur == p->lims[cj])
{
p->state = cj;
break;
}
if (cur == p->lims[cj])
{
p->state = cj;
break;
}
val = GetBe32(cur);
p->bufs[cj] = cur + 4;
val = GetBe32(cur);
p->bufs[cj] = cur + 4;
p->ip += 4;
val -= p->ip;
dest = p->dest;
rem = p->destLim - dest;
p->ip += 4;
val -= p->ip;
dest = p->dest;
rem = p->destLim - dest;
if (rem < 4)
{
SizeT i;
SetUi32(p->temp, val);
for (i = 0; i < rem; i++)
dest[i] = p->temp[i];
p->dest = dest + rem;
p->state = BCJ2_DEC_STATE_ORIG_0 + (unsigned)rem;
break;
}
if (rem < 4)
{
SizeT i;
SetUi32(p->temp, val);
for (i = 0; i < rem; i++)
dest[i] = p->temp[i];
p->dest = dest + rem;
p->state = BCJ2_DEC_STATE_ORIG_0 + (unsigned)rem;
break;
}
SetUi32(dest, val);
p->temp[3] = (Byte)(val >> 24);
p->dest = dest + 4;
}
}
SetUi32(dest, val);
p->temp[3] = (Byte)(val >> 24);
p->dest = dest + 4;
}
}
if (p->range < kTopValue && p->bufs[BCJ2_STREAM_RC] != p->lims[BCJ2_STREAM_RC])
{
p->range <<= 8;
p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++;
}
if (p->range < kTopValue && p->bufs[BCJ2_STREAM_RC] != p->lims[BCJ2_STREAM_RC])
{
p->range <<= 8;
p->code = (p->code << 8) | *(p->bufs[BCJ2_STREAM_RC])++;
}
return SZ_OK;
return SZ_OK;
}

109
SevenZip/Bcj2.h
View file

@ -12,27 +12,27 @@ EXTERN_C_BEGIN
enum
{
BCJ2_STREAM_MAIN,
BCJ2_STREAM_CALL,
BCJ2_STREAM_JUMP,
BCJ2_STREAM_RC
BCJ2_STREAM_MAIN,
BCJ2_STREAM_CALL,
BCJ2_STREAM_JUMP,
BCJ2_STREAM_RC
};
enum
{
BCJ2_DEC_STATE_ORIG_0 = BCJ2_NUM_STREAMS,
BCJ2_DEC_STATE_ORIG_1,
BCJ2_DEC_STATE_ORIG_2,
BCJ2_DEC_STATE_ORIG_3,
BCJ2_DEC_STATE_ORIG_0 = BCJ2_NUM_STREAMS,
BCJ2_DEC_STATE_ORIG_1,
BCJ2_DEC_STATE_ORIG_2,
BCJ2_DEC_STATE_ORIG_3,
BCJ2_DEC_STATE_ORIG,
BCJ2_DEC_STATE_OK
BCJ2_DEC_STATE_ORIG,
BCJ2_DEC_STATE_OK
};
enum
{
BCJ2_ENC_STATE_ORIG = BCJ2_NUM_STREAMS,
BCJ2_ENC_STATE_OK
BCJ2_ENC_STATE_ORIG = BCJ2_NUM_STREAMS,
BCJ2_ENC_STATE_OK
};
@ -61,75 +61,74 @@ dest is allowed to overlap with bufs[BCJ2_STREAM_MAIN], with the following condi
typedef struct
{
const Byte *bufs[BCJ2_NUM_STREAMS];
const Byte *lims[BCJ2_NUM_STREAMS];
Byte *dest;
const Byte *destLim;
const Byte* bufs[BCJ2_NUM_STREAMS];
const Byte* lims[BCJ2_NUM_STREAMS];
Byte* dest;
const Byte* destLim;
unsigned state; /* BCJ2_STREAM_MAIN has more priority than BCJ2_STATE_ORIG */
unsigned state; /* BCJ2_STREAM_MAIN has more priority than BCJ2_STATE_ORIG */
UInt32 ip;
Byte temp[4];
UInt32 range;
UInt32 code;
UInt16 probs[2 + 256];
UInt32 ip;
Byte temp[4];
UInt32 range;
UInt32 code;
UInt16 probs[2 + 256];
} CBcj2Dec;
void Bcj2Dec_Init(CBcj2Dec *p);
void Bcj2Dec_Init(CBcj2Dec* p);
/* Returns: SZ_OK or SZ_ERROR_DATA */
SRes Bcj2Dec_Decode(CBcj2Dec *p);
SRes Bcj2Dec_Decode(CBcj2Dec* p);
#define Bcj2Dec_IsFinished(_p_) ((_p_)->code == 0)
typedef enum
{
BCJ2_ENC_FINISH_MODE_CONTINUE,
BCJ2_ENC_FINISH_MODE_END_BLOCK,
BCJ2_ENC_FINISH_MODE_END_STREAM
BCJ2_ENC_FINISH_MODE_CONTINUE,
BCJ2_ENC_FINISH_MODE_END_BLOCK,
BCJ2_ENC_FINISH_MODE_END_STREAM
} EBcj2Enc_FinishMode;
typedef struct
{
Byte *bufs[BCJ2_NUM_STREAMS];
const Byte *lims[BCJ2_NUM_STREAMS];
const Byte *src;
const Byte *srcLim;
Byte* bufs[BCJ2_NUM_STREAMS];
const Byte* lims[BCJ2_NUM_STREAMS];
const Byte* src;
const Byte* srcLim;
unsigned state;
EBcj2Enc_FinishMode finishMode;
unsigned state;
EBcj2Enc_FinishMode finishMode;
Byte prevByte;
Byte prevByte;
Byte cache;
UInt32 range;
UInt64 low;
UInt64 cacheSize;
Byte cache;
UInt32 range;
UInt64 low;
UInt64 cacheSize;
UInt32 ip;
UInt32 ip;
/* 32-bit ralative offset in JUMP/CALL commands is
- (mod 4 GB) in 32-bit mode
- signed Int32 in 64-bit mode
We use (mod 4 GB) check for fileSize.
Use fileSize up to 2 GB, if you want to support 32-bit and 64-bit code conversion. */
UInt32 fileIp;
UInt32 fileSize; /* (fileSize <= ((UInt32)1 << 31)), 0 means no_limit */
UInt32 relatLimit; /* (relatLimit <= ((UInt32)1 << 31)), 0 means desable_conversion */
/* 32-bit ralative offset in JUMP/CALL commands is
- (mod 4 GB) in 32-bit mode
- signed Int32 in 64-bit mode
We use (mod 4 GB) check for fileSize.
Use fileSize up to 2 GB, if you want to support 32-bit and 64-bit code conversion. */
UInt32 fileIp;
UInt32 fileSize; /* (fileSize <= ((UInt32)1 << 31)), 0 means no_limit */
UInt32 relatLimit; /* (relatLimit <= ((UInt32)1 << 31)), 0 means desable_conversion */
UInt32 tempTarget;
unsigned tempPos;
Byte temp[4 * 2];
UInt32 tempTarget;
unsigned tempPos;
Byte temp[4 * 2];
unsigned flushPos;
unsigned flushPos;
UInt16 probs[2 + 256];
UInt16 probs[2 + 256];
} CBcj2Enc;
void Bcj2Enc_Init(CBcj2Enc *p);
void Bcj2Enc_Encode(CBcj2Enc *p);
void Bcj2Enc_Init(CBcj2Enc* p);
void Bcj2Enc_Encode(CBcj2Enc* p);
#define Bcj2Enc_Get_InputData_Size(p) ((SizeT)((p)->srcLim - (p)->src) + (p)->tempPos)
#define Bcj2Enc_IsFinished(p) ((p)->flushPos == 5)

222
SevenZip/Bra.c
View file

@ -5,131 +5,131 @@
#include "Bra.h"
SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
SizeT ARM_Convert(Byte* data, SizeT size, UInt32 ip, int encoding)
{
SizeT i;
if (size < 4)
return 0;
size -= 4;
ip += 8;
for (i = 0; i <= size; i += 4)
{
if (data[i + 3] == 0xEB)
{
UInt32 dest;
UInt32 src = ((UInt32)data[i + 2] << 16) | ((UInt32)data[i + 1] << 8) | (data[i + 0]);
src <<= 2;
if (encoding)
dest = ip + (UInt32)i + src;
else
dest = src - (ip + (UInt32)i);
dest >>= 2;
data[i + 2] = (Byte)(dest >> 16);
data[i + 1] = (Byte)(dest >> 8);
data[i + 0] = (Byte)dest;
}
}
return i;
SizeT i;
if (size < 4)
return 0;
size -= 4;
ip += 8;
for (i = 0; i <= size; i += 4)
{
if (data[i + 3] == 0xEB)
{
UInt32 dest;
UInt32 src = ((UInt32)data[i + 2] << 16) | ((UInt32)data[i + 1] << 8) | (data[i + 0]);
src <<= 2;
if (encoding)
dest = ip + (UInt32)i + src;
else
dest = src - (ip + (UInt32)i);
dest >>= 2;
data[i + 2] = (Byte)(dest >> 16);
data[i + 1] = (Byte)(dest >> 8);
data[i + 0] = (Byte)dest;
}
}
return i;
}
SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
SizeT ARMT_Convert(Byte* data, SizeT size, UInt32 ip, int encoding)
{
SizeT i;
if (size < 4)
return 0;
size -= 4;
ip += 4;
for (i = 0; i <= size; i += 2)
{
if ((data[i + 1] & 0xF8) == 0xF0 &&
(data[i + 3] & 0xF8) == 0xF8)
{
UInt32 dest;
UInt32 src =
(((UInt32)data[i + 1] & 0x7) << 19) |
((UInt32)data[i + 0] << 11) |
(((UInt32)data[i + 3] & 0x7) << 8) |
(data[i + 2]);
SizeT i;
if (size < 4)
return 0;
size -= 4;
ip += 4;
for (i = 0; i <= size; i += 2)
{
if ((data[i + 1] & 0xF8) == 0xF0 &&
(data[i + 3] & 0xF8) == 0xF8)
{
UInt32 dest;
UInt32 src =
(((UInt32)data[i + 1] & 0x7) << 19) |
((UInt32)data[i + 0] << 11) |
(((UInt32)data[i + 3] & 0x7) << 8) |
(data[i + 2]);
src <<= 1;
if (encoding)
dest = ip + (UInt32)i + src;
else
dest = src - (ip + (UInt32)i);
dest >>= 1;
src <<= 1;
if (encoding)
dest = ip + (UInt32)i + src;
else
dest = src - (ip + (UInt32)i);
dest >>= 1;
data[i + 1] = (Byte)(0xF0 | ((dest >> 19) & 0x7));
data[i + 0] = (Byte)(dest >> 11);
data[i + 3] = (Byte)(0xF8 | ((dest >> 8) & 0x7));
data[i + 2] = (Byte)dest;
i += 2;
}
}
return i;
data[i + 1] = (Byte)(0xF0 | ((dest >> 19) & 0x7));
data[i + 0] = (Byte)(dest >> 11);
data[i + 3] = (Byte)(0xF8 | ((dest >> 8) & 0x7));
data[i + 2] = (Byte)dest;
i += 2;
}
}
return i;
}
SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
SizeT PPC_Convert(Byte* data, SizeT size, UInt32 ip, int encoding)
{
SizeT i;
if (size < 4)
return 0;
size -= 4;
for (i = 0; i <= size; i += 4)
{
if ((data[i] >> 2) == 0x12 && (data[i + 3] & 3) == 1)
{
UInt32 src = ((UInt32)(data[i + 0] & 3) << 24) |
((UInt32)data[i + 1] << 16) |
((UInt32)data[i + 2] << 8) |
((UInt32)data[i + 3] & (~3));
SizeT i;
if (size < 4)
return 0;
size -= 4;
for (i = 0; i <= size; i += 4)
{
if ((data[i] >> 2) == 0x12 && (data[i + 3] & 3) == 1)
{
UInt32 src = ((UInt32)(data[i + 0] & 3) << 24) |
((UInt32)data[i + 1] << 16) |
((UInt32)data[i + 2] << 8) |
((UInt32)data[i + 3] & (~3));
UInt32 dest;
if (encoding)
dest = ip + (UInt32)i + src;
else
dest = src - (ip + (UInt32)i);
data[i + 0] = (Byte)(0x48 | ((dest >> 24) & 0x3));
data[i + 1] = (Byte)(dest >> 16);
data[i + 2] = (Byte)(dest >> 8);
data[i + 3] &= 0x3;
data[i + 3] |= dest;
}
}
return i;
UInt32 dest;
if (encoding)
dest = ip + (UInt32)i + src;
else
dest = src - (ip + (UInt32)i);
data[i + 0] = (Byte)(0x48 | ((dest >> 24) & 0x3));
data[i + 1] = (Byte)(dest >> 16);
data[i + 2] = (Byte)(dest >> 8);
data[i + 3] &= 0x3;
data[i + 3] |= dest;
}
}
return i;
}
SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
SizeT SPARC_Convert(Byte* data, SizeT size, UInt32 ip, int encoding)
{
UInt32 i;
if (size < 4)
return 0;
size -= 4;
for (i = 0; i <= size; i += 4)
{
if ((data[i] == 0x40 && (data[i + 1] & 0xC0) == 0x00) ||
(data[i] == 0x7F && (data[i + 1] & 0xC0) == 0xC0))
{
UInt32 src =
((UInt32)data[i + 0] << 24) |
((UInt32)data[i + 1] << 16) |
((UInt32)data[i + 2] << 8) |
((UInt32)data[i + 3]);
UInt32 dest;
UInt32 i;
if (size < 4)
return 0;
size -= 4;
for (i = 0; i <= size; i += 4)
{
if ((data[i] == 0x40 && (data[i + 1] & 0xC0) == 0x00) ||
(data[i] == 0x7F && (data[i + 1] & 0xC0) == 0xC0))
{
UInt32 src =
((UInt32)data[i + 0] << 24) |
((UInt32)data[i + 1] << 16) |
((UInt32)data[i + 2] << 8) |
((UInt32)data[i + 3]);
UInt32 dest;
src <<= 2;
if (encoding)
dest = ip + i + src;
else
dest = src - (ip + i);
dest >>= 2;
src <<= 2;
if (encoding)
dest = ip + i + src;
else
dest = src - (ip + i);
dest >>= 2;
dest = (((0 - ((dest >> 22) & 1)) << 22) & 0x3FFFFFFF) | (dest & 0x3FFFFF) | 0x40000000;
dest = (((0 - ((dest >> 22) & 1)) << 22) & 0x3FFFFFFF) | (dest & 0x3FFFFF) | 0x40000000;
data[i + 0] = (Byte)(dest >> 24);
data[i + 1] = (Byte)(dest >> 16);
data[i + 2] = (Byte)(dest >> 8);
data[i + 3] = (Byte)dest;
}
}
return i;
data[i + 0] = (Byte)(dest >> 24);
data[i + 1] = (Byte)(dest >> 16);
data[i + 2] = (Byte)(dest >> 8);
data[i + 3] = (Byte)dest;
}
}
return i;
}

12
SevenZip/Bra.h
View file

@ -52,12 +52,12 @@ in CALL instructions to increase the compression ratio.
*/
#define x86_Convert_Init(state) { state = 0; }
SizeT x86_Convert(Byte *data, SizeT size, UInt32 ip, UInt32 *state, int encoding);
SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT x86_Convert(Byte* data, SizeT size, UInt32 ip, UInt32* state, int encoding);
SizeT ARM_Convert(Byte* data, SizeT size, UInt32 ip, int encoding);
SizeT ARMT_Convert(Byte* data, SizeT size, UInt32 ip, int encoding);
SizeT PPC_Convert(Byte* data, SizeT size, UInt32 ip, int encoding);
SizeT SPARC_Convert(Byte* data, SizeT size, UInt32 ip, int encoding);
SizeT IA64_Convert(Byte* data, SizeT size, UInt32 ip, int encoding);
EXTERN_C_END

136
SevenZip/Bra86.c
View file

@ -7,76 +7,76 @@
#define Test86MSByte(b) ((((b) + 1) & 0xFE) == 0)
SizeT x86_Convert(Byte *data, SizeT size, UInt32 ip, UInt32 *state, int encoding)
SizeT x86_Convert(Byte* data, SizeT size, UInt32 ip, UInt32* state, int encoding)
{
SizeT pos = 0;
UInt32 mask = *state & 7;
if (size < 5)
return 0;
size -= 4;
ip += 5;
SizeT pos = 0;
UInt32 mask = *state & 7;
if (size < 5)
return 0;
size -= 4;
ip += 5;
for (;;)
{
Byte *p = data + pos;
const Byte *limit = data + size;
for (; p < limit; p++)
if ((*p & 0xFE) == 0xE8)
break;
for (;;)
{
Byte* p = data + pos;
const Byte* limit = data + size;
for (; p < limit; p++)
if ((*p & 0xFE) == 0xE8)
break;
{
SizeT d = (SizeT)(p - data - pos);
pos = (SizeT)(p - data);
if (p >= limit)
{
*state = (d > 2 ? 0 : mask >> (unsigned)d);
return pos;
}
if (d > 2)
mask = 0;
else
{
mask >>= (unsigned)d;
if (mask != 0 && (mask > 4 || mask == 3 || Test86MSByte(p[(mask >> 1) + 1])))
{
mask = (mask >> 1) | 4;
pos++;
continue;
}
}
}
{
SizeT d = (SizeT)(p - data - pos);
pos = (SizeT)(p - data);
if (p >= limit)
{
*state = (d > 2 ? 0 : mask >> (unsigned)d);
return pos;
}
if (d > 2)
mask = 0;
else
{
mask >>= (unsigned)d;
if (mask != 0 && (mask > 4 || mask == 3 || Test86MSByte(p[(mask >> 1) + 1])))
{
mask = (mask >> 1) | 4;
pos++;
continue;
}
}
}
if (Test86MSByte(p[4]))
{
UInt32 v = ((UInt32)p[4] << 24) | ((UInt32)p[3] << 16) | ((UInt32)p[2] << 8) | ((UInt32)p[1]);
UInt32 cur = ip + (UInt32)pos;
pos += 5;
if (encoding)
v += cur;
else
v -= cur;
if (mask != 0)
{
unsigned sh = (mask & 6) << 2;
if (Test86MSByte((Byte)(v >> sh)))
{
v ^= (((UInt32)0x100 << sh) - 1);
if (encoding)
v += cur;
else
v -= cur;
}
mask = 0;
}
p[1] = (Byte)v;
p[2] = (Byte)(v >> 8);
p[3] = (Byte)(v >> 16);
p[4] = (Byte)(0 - ((v >> 24) & 1));
}
else
{
mask = (mask >> 1) | 4;
pos++;
}
}
if (Test86MSByte(p[4]))
{
UInt32 v = ((UInt32)p[4] << 24) | ((UInt32)p[3] << 16) | ((UInt32)p[2] << 8) | ((UInt32)p[1]);
UInt32 cur = ip + (UInt32)pos;
pos += 5;
if (encoding)
v += cur;
else
v -= cur;
if (mask != 0)
{
unsigned sh = (mask & 6) << 2;
if (Test86MSByte((Byte)(v >> sh)))
{
v ^= (((UInt32)0x100 << sh) - 1);
if (encoding)
v += cur;
else
v -= cur;
}
mask = 0;
}
p[1] = (Byte)v;
p[2] = (Byte)(v >> 8);
p[3] = (Byte)(v >> 16);
p[4] = (Byte)(0 - ((v >> 24) & 1));
}
else
{
mask = (mask >> 1) | 4;
pos++;
}
}
}

100
SevenZip/BraIA64.c
View file

@ -7,63 +7,63 @@
static const Byte kBranchTable[32] =
{
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
4, 4, 6, 6, 0, 0, 7, 7,
4, 4, 0, 0, 4, 4, 0, 0
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
4, 4, 6, 6, 0, 0, 7, 7,
4, 4, 0, 0, 4, 4, 0, 0
};
SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
SizeT IA64_Convert(Byte* data, SizeT size, UInt32 ip, int encoding)
{
SizeT i;
if (size < 16)
return 0;
size -= 16;
for (i = 0; i <= size; i += 16)
{
UInt32 instrTemplate = data[i] & 0x1F;
UInt32 mask = kBranchTable[instrTemplate];
UInt32 bitPos = 5;
int slot;
for (slot = 0; slot < 3; slot++, bitPos += 41)
{
UInt32 bytePos, bitRes;
UInt64 instruction, instNorm;
int j;
if (((mask >> slot) & 1) == 0)
continue;
bytePos = (bitPos >> 3);
bitRes = bitPos & 0x7;
instruction = 0;
for (j = 0; j < 6; j++)
instruction += (UInt64)data[i + j + bytePos] << (8 * j);
SizeT i;
if (size < 16)
return 0;
size -= 16;
for (i = 0; i <= size; i += 16)
{
UInt32 instrTemplate = data[i] & 0x1F;
UInt32 mask = kBranchTable[instrTemplate];
UInt32 bitPos = 5;
int slot;
for (slot = 0; slot < 3; slot++, bitPos += 41)
{
UInt32 bytePos, bitRes;
UInt64 instruction, instNorm;
int j;
if (((mask >> slot) & 1) == 0)
continue;
bytePos = (bitPos >> 3);
bitRes = bitPos & 0x7;
instruction = 0;
for (j = 0; j < 6; j++)
instruction += (UInt64)data[i + j + bytePos] << (8 * j);
instNorm = instruction >> bitRes;
if (((instNorm >> 37) & 0xF) == 0x5 && ((instNorm >> 9) & 0x7) == 0)
{
UInt32 src = (UInt32)((instNorm >> 13) & 0xFFFFF);
UInt32 dest;
src |= ((UInt32)(instNorm >> 36) & 1) << 20;
instNorm = instruction >> bitRes;
if (((instNorm >> 37) & 0xF) == 0x5 && ((instNorm >> 9) & 0x7) == 0)
{
UInt32 src = (UInt32)((instNorm >> 13) & 0xFFFFF);
UInt32 dest;
src |= ((UInt32)(instNorm >> 36) & 1) << 20;
src <<= 4;
src <<= 4;
if (encoding)
dest = ip + (UInt32)i + src;
else
dest = src - (ip + (UInt32)i);
if (encoding)
dest = ip + (UInt32)i + src;
else
dest = src - (ip + (UInt32)i);
dest >>= 4;
dest >>= 4;
instNorm &= ~((UInt64)(0x8FFFFF) << 13);
instNorm |= ((UInt64)(dest & 0xFFFFF) << 13);
instNorm |= ((UInt64)(dest & 0x100000) << (36 - 20));
instNorm &= ~((UInt64)(0x8FFFFF) << 13);
instNorm |= ((UInt64)(dest & 0xFFFFF) << 13);
instNorm |= ((UInt64)(dest & 0x100000) << (36 - 20));
instruction &= (1 << bitRes) - 1;
instruction |= (instNorm << bitRes);
for (j = 0; j < 6; j++)
data[i + j + bytePos] = (Byte)(instruction >> (8 * j));
}
}
}
return i;
instruction &= (1 << bitRes) - 1;
instruction |= (instNorm << bitRes);
for (j = 0; j < 6; j++)
data[i + j + bytePos] = (Byte)(instruction >> (8 * j));
}
}
}
return i;
}

12
SevenZip/Compiler.h
View file

@ -6,23 +6,23 @@
#ifdef _MSC_VER
#ifdef UNDER_CE
#ifdef UNDER_CE
#define RPC_NO_WINDOWS_H
/* #pragma warning(disable : 4115) // '_RPC_ASYNC_STATE' : named type definition in parentheses */
#pragma warning(disable : 4201) // nonstandard extension used : nameless struct/union
#pragma warning(disable : 4214) // nonstandard extension used : bit field types other than int
#endif
#endif
#if _MSC_VER >= 1300
#pragma warning(disable : 4996) // This function or variable may be unsafe
#else
#if _MSC_VER >= 1300
#pragma warning(disable : 4996) // This function or variable may be unsafe
#else
#pragma warning(disable : 4511) // copy constructor could not be generated
#pragma warning(disable : 4512) // assignment operator could not be generated
#pragma warning(disable : 4514) // unreferenced inline function has been removed
#pragma warning(disable : 4702) // unreachable code
#pragma warning(disable : 4710) // not inlined
#pragma warning(disable : 4786) // identifier was truncated to '255' characters in the debug information
#endif
#endif
#endif

132
SevenZip/CpuArch.c
View file

@ -18,7 +18,7 @@
#if defined(USE_ASM) && !defined(MY_CPU_AMD64)
static UInt32 CheckFlag(UInt32 flag)
{
#ifdef _MSC_VER
#ifdef _MSC_VER
__asm pushfd;
__asm pop EAX;
__asm mov EDX, EAX;
@ -31,7 +31,7 @@ static UInt32 CheckFlag(UInt32 flag)
__asm push EDX;
__asm popfd;
__asm and flag, EAX;
#else
#else
__asm__ __volatile__ (
"pushf\n\t"
"pop %%EAX\n\t"
@ -47,7 +47,7 @@ static UInt32 CheckFlag(UInt32 flag)
"andl %%EAX, %0\n\t":
"=c" (flag) : "c" (flag) :
"%eax", "%edx");
#endif
#endif
return flag;
}
#define CHECK_CPUID_IS_SUPPORTED if (CheckFlag(1 << 18) == 0 || CheckFlag(1 << 21) == 0) return False;
@ -55,11 +55,11 @@ static UInt32 CheckFlag(UInt32 flag)
#define CHECK_CPUID_IS_SUPPORTED
#endif
void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d)
void MyCPUID(UInt32 function, UInt32* a, UInt32* b, UInt32* c, UInt32* d)
{
#ifdef USE_ASM
#ifdef USE_ASM
#ifdef _MSC_VER
#ifdef _MSC_VER
UInt32 a2, b2, c2, d2;
__asm xor EBX, EBX;
@ -77,100 +77,100 @@ void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d)
*c = c2;
*d = d2;
#else
#else
__asm__ __volatile__ (
#if defined(MY_CPU_AMD64) && defined(__PIC__)
#if defined(MY_CPU_AMD64) && defined(__PIC__)
"mov %%rbx, %%rdi;"
"cpuid;"
"xchg %%rbx, %%rdi;"
: "=a" (*a) ,
"=D" (*b) ,
#elif defined(MY_CPU_X86) && defined(__PIC__)
#elif defined(MY_CPU_X86) && defined(__PIC__)
"mov %%ebx, %%edi;"
"cpuid;"
"xchgl %%ebx, %%edi;"
: "=a" (*a) ,
"=D" (*b) ,
#else
#else
"cpuid"
: "=a" (*a) ,
"=b" (*b) ,
#endif
#endif
"=c" (*c) ,
"=d" (*d)
: "0" (function)) ;
#endif
#endif
#else
#else
int CPUInfo[4];
__cpuid(CPUInfo, function);
*a = CPUInfo[0];
*b = CPUInfo[1];
*c = CPUInfo[2];
*d = CPUInfo[3];
int CPUInfo[4];
__cpuid(CPUInfo, function);
*a = CPUInfo[0];
*b = CPUInfo[1];
*c = CPUInfo[2];
*d = CPUInfo[3];
#endif
#endif
}
Bool x86cpuid_CheckAndRead(Cx86cpuid *p)
Bool x86cpuid_CheckAndRead(Cx86cpuid* p)
{
CHECK_CPUID_IS_SUPPORTED
MyCPUID(0, &p->maxFunc, &p->vendor[0], &p->vendor[2], &p->vendor[1]);
MyCPUID(1, &p->ver, &p->b, &p->c, &p->d);
return True;
CHECK_CPUID_IS_SUPPORTED
MyCPUID(0, &p->maxFunc, &p->vendor[0], &p->vendor[2], &p->vendor[1]);
MyCPUID(1, &p->ver, &p->b, &p->c, &p->d);
return True;
}
static const UInt32 kVendors[][3] =
{
{ 0x756E6547, 0x49656E69, 0x6C65746E},
{ 0x68747541, 0x69746E65, 0x444D4163},
{ 0x746E6543, 0x48727561, 0x736C7561}
{0x756E6547, 0x49656E69, 0x6C65746E},
{0x68747541, 0x69746E65, 0x444D4163},
{0x746E6543, 0x48727561, 0x736C7561}
};
int x86cpuid_GetFirm(const Cx86cpuid *p)
int x86cpuid_GetFirm(const Cx86cpuid* p)
{
unsigned i;
for (i = 0; i < sizeof(kVendors) / sizeof(kVendors[i]); i++)
{
const UInt32 *v = kVendors[i];
if (v[0] == p->vendor[0] &&
v[1] == p->vendor[1] &&
v[2] == p->vendor[2])
return (int)i;
}
return -1;
unsigned i;
for (i = 0; i < sizeof(kVendors) / sizeof(kVendors[i]); i++)
{
const UInt32* v = kVendors[i];
if (v[0] == p->vendor[0] &&
v[1] == p->vendor[1] &&
v[2] == p->vendor[2])
return (int)i;
}
return -1;
}
Bool CPU_Is_InOrder()
{
Cx86cpuid p;
int firm;
UInt32 family, model;
if (!x86cpuid_CheckAndRead(&p))
return True;
Cx86cpuid p;
int firm;
UInt32 family, model;
if (!x86cpuid_CheckAndRead(&p))
return True;
family = x86cpuid_GetFamily(p.ver);
model = x86cpuid_GetModel(p.ver);
family = x86cpuid_GetFamily(p.ver);
model = x86cpuid_GetModel(p.ver);
firm = x86cpuid_GetFirm(&p);
firm = x86cpuid_GetFirm(&p);
switch (firm)
{
case CPU_FIRM_INTEL: return (family < 6 || (family == 6 && (
/* In-Order Atom CPU */
model == 0x1C /* 45 nm, N4xx, D4xx, N5xx, D5xx, 230, 330 */
|| model == 0x26 /* 45 nm, Z6xx */
|| model == 0x27 /* 32 nm, Z2460 */
|| model == 0x35 /* 32 nm, Z2760 */
|| model == 0x36 /* 32 nm, N2xxx, D2xxx */
)));
case CPU_FIRM_AMD: return (family < 5 || (family == 5 && (model < 6 || model == 0xA)));
case CPU_FIRM_VIA: return (family < 6 || (family == 6 && model < 0xF));
}
return True;
switch (firm)
{
case CPU_FIRM_INTEL: return (family < 6 || (family == 6 && (
/* In-Order Atom CPU */
model == 0x1C /* 45 nm, N4xx, D4xx, N5xx, D5xx, 230, 330 */
|| model == 0x26 /* 45 nm, Z6xx */
|| model == 0x27 /* 32 nm, Z2460 */
|| model == 0x35 /* 32 nm, Z2760 */
|| model == 0x36 /* 32 nm, N2xxx, D2xxx */
)));
case CPU_FIRM_AMD: return (family < 5 || (family == 5 && (model < 6 || model == 0xA)));
case CPU_FIRM_VIA: return (family < 6 || (family == 6 && model < 0xF));
}
return True;
}
#if !defined(MY_CPU_AMD64) && defined(_WIN32)
@ -190,11 +190,11 @@ static Bool CPU_Sys_Is_SSE_Supported()
Bool CPU_Is_Aes_Supported()
{
Cx86cpuid p;
CHECK_SYS_SSE_SUPPORT
if (!x86cpuid_CheckAndRead(&p))
return False;
return (p.c >> 25) & 1;
Cx86cpuid p;
CHECK_SYS_SSE_SUPPORT
if (!x86cpuid_CheckAndRead(&p))
return False;
return (p.c >> 25) & 1;
}
#endif

37
SevenZip/CpuArch.h
View file

@ -21,14 +21,14 @@ MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned mem
|| defined(__x86_64__) \
|| defined(__AMD64__) \
|| defined(__amd64__)
#define MY_CPU_AMD64
#define MY_CPU_AMD64
#endif
#if defined(MY_CPU_AMD64) \
|| defined(_M_IA64) \
|| defined(__AARCH64EL__) \
|| defined(__AARCH64EB__)
#define MY_CPU_64BIT
#define MY_CPU_64BIT
#endif
#if defined(_M_IX86) || defined(__i386__)
@ -67,7 +67,7 @@ MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned mem
|| defined(__MIPSEL) \
|| defined(_MIPSEL) \
|| (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
#define MY_CPU_LE
#define MY_CPU_LE
#endif
#if defined(__BIG_ENDIAN__) \
@ -91,10 +91,10 @@ Stop_Compiling_Bad_Endian
#ifdef MY_CPU_LE
#if defined(MY_CPU_X86_OR_AMD64) \
#if defined(MY_CPU_X86_OR_AMD64) \
/* || defined(__AARCH64EL__) */
#define MY_CPU_LE_UNALIGN
#endif
#define MY_CPU_LE_UNALIGN
#endif
#endif
@ -183,30 +183,29 @@ Stop_Compiling_Bad_Endian
((const Byte *)(p))[1] ))
#ifdef MY_CPU_X86_OR_AMD64
typedef struct
{
UInt32 maxFunc;
UInt32 vendor[3];
UInt32 ver;
UInt32 b;
UInt32 c;
UInt32 d;
UInt32 maxFunc;
UInt32 vendor[3];
UInt32 ver;
UInt32 b;
UInt32 c;
UInt32 d;
} Cx86cpuid;
enum
{
CPU_FIRM_INTEL,
CPU_FIRM_AMD,
CPU_FIRM_VIA
CPU_FIRM_INTEL,
CPU_FIRM_AMD,
CPU_FIRM_VIA
};
void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d);
void MyCPUID(UInt32 function, UInt32* a, UInt32* b, UInt32* c, UInt32* d);
Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
int x86cpuid_GetFirm(const Cx86cpuid *p);
Bool x86cpuid_CheckAndRead(Cx86cpuid* p);
int x86cpuid_GetFirm(const Cx86cpuid* p);
#define x86cpuid_GetFamily(ver) (((ver >> 16) & 0xFF0) | ((ver >> 8) & 0xF))
#define x86cpuid_GetModel(ver) (((ver >> 12) & 0xF0) | ((ver >> 4) & 0xF))

92
SevenZip/Delta.c
View file

@ -5,60 +5,60 @@
#include "Delta.h"
void Delta_Init(Byte *state)
void Delta_Init(Byte* state)
{
unsigned i;
for (i = 0; i < DELTA_STATE_SIZE; i++)
state[i] = 0;
unsigned i;
for (i = 0; i < DELTA_STATE_SIZE; i++)
state[i] = 0;
}
static void MyMemCpy(Byte *dest, const Byte *src, unsigned size)
static void MyMemCpy(Byte* dest, const Byte* src, unsigned size)
{
unsigned i;
for (i = 0; i < size; i++)
dest[i] = src[i];
unsigned i;
for (i = 0; i < size; i++)
dest[i] = src[i];
}
void Delta_Encode(Byte *state, unsigned delta, Byte *data, SizeT size)
void Delta_Encode(Byte* state, unsigned delta, Byte* data, SizeT size)
{
Byte buf[DELTA_STATE_SIZE];
unsigned j = 0;
MyMemCpy(buf, state, delta);
{
SizeT i;
for (i = 0; i < size;)
{
for (j = 0; j < delta && i < size; i++, j++)
{
Byte b = data[i];
data[i] = (Byte)(b - buf[j]);
buf[j] = b;
}
}
}
if (j == delta)
j = 0;
MyMemCpy(state, buf + j, delta - j);
MyMemCpy(state + delta - j, buf, j);
Byte buf[DELTA_STATE_SIZE];
unsigned j = 0;
MyMemCpy(buf, state, delta);
{
SizeT i;
for (i = 0; i < size;)
{
for (j = 0; j < delta && i < size; i++, j++)
{
Byte b = data[i];
data[i] = (Byte)(b - buf[j]);
buf[j] = b;
}
}
}
if (j == delta)
j = 0;
MyMemCpy(state, buf + j, delta - j);
MyMemCpy(state + delta - j, buf, j);
}
void Delta_Decode(Byte *state, unsigned delta, Byte *data, SizeT size)
void Delta_Decode(Byte* state, unsigned delta, Byte* data, SizeT size)
{
Byte buf[DELTA_STATE_SIZE];
unsigned j = 0;
MyMemCpy(buf, state, delta);
{
SizeT i;
for (i = 0; i < size;)
{
for (j = 0; j < delta && i < size; i++, j++)
{
buf[j] = data[i] = (Byte)(buf[j] + data[i]);
}
}
}
if (j == delta)
j = 0;
MyMemCpy(state, buf + j, delta - j);
MyMemCpy(state + delta - j, buf, j);
Byte buf[DELTA_STATE_SIZE];
unsigned j = 0;
MyMemCpy(buf, state, delta);
{
SizeT i;
for (i = 0; i < size;)
{
for (j = 0; j < delta && i < size; i++, j++)
{
buf[j] = data[i] = (Byte)(buf[j] + data[i]);
}
}
}
if (j == delta)
j = 0;
MyMemCpy(state, buf + j, delta - j);
MyMemCpy(state + delta - j, buf, j);
}

6
SevenZip/Delta.h
View file

@ -10,9 +10,9 @@ EXTERN_C_BEGIN
#define DELTA_STATE_SIZE 256
void Delta_Init(Byte *state);
void Delta_Encode(Byte *state, unsigned delta, Byte *data, SizeT size);
void Delta_Decode(Byte *state, unsigned delta, Byte *data, SizeT size);
void Delta_Init(Byte* state);
void Delta_Encode(Byte* state, unsigned delta, Byte* data, SizeT size);
void Delta_Decode(Byte* state, unsigned delta, Byte* data, SizeT size);
EXTERN_C_END

542
SevenZip/Lzma2Dec.c
View file

@ -48,331 +48,333 @@
typedef enum
{
LZMA2_STATE_CONTROL,
LZMA2_STATE_UNPACK0,
LZMA2_STATE_UNPACK1,
LZMA2_STATE_PACK0,
LZMA2_STATE_PACK1,
LZMA2_STATE_PROP,
LZMA2_STATE_DATA,
LZMA2_STATE_DATA_CONT,
LZMA2_STATE_FINISHED,
LZMA2_STATE_ERROR
LZMA2_STATE_CONTROL,
LZMA2_STATE_UNPACK0,
LZMA2_STATE_UNPACK1,
LZMA2_STATE_PACK0,
LZMA2_STATE_PACK1,
LZMA2_STATE_PROP,
LZMA2_STATE_DATA,
LZMA2_STATE_DATA_CONT,
LZMA2_STATE_FINISHED,
LZMA2_STATE_ERROR
} ELzma2State;
static SRes Lzma2Dec_GetOldProps(Byte prop, Byte *props)
static SRes Lzma2Dec_GetOldProps(Byte prop, Byte* props)
{
UInt32 dicSize;
if (prop > 40)
return SZ_ERROR_UNSUPPORTED;
dicSize = (prop == 40) ? 0xFFFFFFFF : LZMA2_DIC_SIZE_FROM_PROP(prop);
props[0] = (Byte)LZMA2_LCLP_MAX;
props[1] = (Byte)(dicSize);
props[2] = (Byte)(dicSize >> 8);
props[3] = (Byte)(dicSize >> 16);
props[4] = (Byte)(dicSize >> 24);
return SZ_OK;
UInt32 dicSize;
if (prop > 40)
return SZ_ERROR_UNSUPPORTED;
dicSize = (prop == 40) ? 0xFFFFFFFF : LZMA2_DIC_SIZE_FROM_PROP(prop);
props[0] = (Byte)LZMA2_LCLP_MAX;
props[1] = (Byte)(dicSize);
props[2] = (Byte)(dicSize >> 8);
props[3] = (Byte)(dicSize >> 16);
props[4] = (Byte)(dicSize >> 24);
return SZ_OK;
}
SRes Lzma2Dec_AllocateProbs(CLzma2Dec *p, Byte prop, ISzAlloc *alloc)
SRes Lzma2Dec_AllocateProbs(CLzma2Dec* p, Byte prop, ISzAlloc* alloc)
{
Byte props[LZMA_PROPS_SIZE];
RINOK(Lzma2Dec_GetOldProps(prop, props));
return LzmaDec_AllocateProbs(&p->decoder, props, LZMA_PROPS_SIZE, alloc);
Byte props[LZMA_PROPS_SIZE];
RINOK(Lzma2Dec_GetOldProps(prop, props));
return LzmaDec_AllocateProbs(&p->decoder, props, LZMA_PROPS_SIZE, alloc);
}
SRes Lzma2Dec_Allocate(CLzma2Dec *p, Byte prop, ISzAlloc *alloc)
SRes Lzma2Dec_Allocate(CLzma2Dec* p, Byte prop, ISzAlloc* alloc)
{
Byte props[LZMA_PROPS_SIZE];
RINOK(Lzma2Dec_GetOldProps(prop, props));
return LzmaDec_Allocate(&p->decoder, props, LZMA_PROPS_SIZE, alloc);
Byte props[LZMA_PROPS_SIZE];
RINOK(Lzma2Dec_GetOldProps(prop, props));
return LzmaDec_Allocate(&p->decoder, props, LZMA_PROPS_SIZE, alloc);
}
void Lzma2Dec_Init(CLzma2Dec *p)
void Lzma2Dec_Init(CLzma2Dec* p)
{
p->state = LZMA2_STATE_CONTROL;
p->needInitDic = True;
p->needInitState = True;
p->needInitProp = True;
LzmaDec_Init(&p->decoder);
p->state = LZMA2_STATE_CONTROL;
p->needInitDic = True;
p->needInitState = True;
p->needInitProp = True;
LzmaDec_Init(&p->decoder);
}
static ELzma2State Lzma2Dec_UpdateState(CLzma2Dec *p, Byte b)
static ELzma2State Lzma2Dec_UpdateState(CLzma2Dec* p, Byte b)
{
switch (p->state)
{
case LZMA2_STATE_CONTROL:
p->control = b;
PRF(printf("\n %4X ", (unsigned)p->decoder.dicPos));
PRF(printf(" %2X", (unsigned)b));
if (p->control == 0)
return LZMA2_STATE_FINISHED;
if (LZMA2_IS_UNCOMPRESSED_STATE(p))
{
if ((p->control & 0x7F) > 2)
return LZMA2_STATE_ERROR;
p->unpackSize = 0;
}
else
p->unpackSize = (UInt32)(p->control & 0x1F) << 16;
return LZMA2_STATE_UNPACK0;
switch (p->state)
{
case LZMA2_STATE_CONTROL:
p->control = b;
PRF(printf("\n %4X ", (unsigned)p->decoder.dicPos));
PRF(printf(" %2X", (unsigned)b));
if (p->control == 0)
return LZMA2_STATE_FINISHED;
if (LZMA2_IS_UNCOMPRESSED_STATE(p))
{
if ((p->control & 0x7F) > 2)
return LZMA2_STATE_ERROR;
p->unpackSize = 0;
}
else
p->unpackSize = (UInt32)(p->control & 0x1F) << 16;
return LZMA2_STATE_UNPACK0;
case LZMA2_STATE_UNPACK0:
p->unpackSize |= (UInt32)b << 8;
return LZMA2_STATE_UNPACK1;
case LZMA2_STATE_UNPACK0:
p->unpackSize |= (UInt32)b << 8;
return LZMA2_STATE_UNPACK1;
case LZMA2_STATE_UNPACK1:
p->unpackSize |= (UInt32)b;
p->unpackSize++;
PRF(printf(" %8u", (unsigned)p->unpackSize));
return (LZMA2_IS_UNCOMPRESSED_STATE(p)) ? LZMA2_STATE_DATA : LZMA2_STATE_PACK0;
case LZMA2_STATE_UNPACK1:
p->unpackSize |= (UInt32)b;
p->unpackSize++;
PRF(printf(" %8u", (unsigned)p->unpackSize));
return (LZMA2_IS_UNCOMPRESSED_STATE(p)) ? LZMA2_STATE_DATA : LZMA2_STATE_PACK0;
case LZMA2_STATE_PACK0:
p->packSize = (UInt32)b << 8;
return LZMA2_STATE_PACK1;
case LZMA2_STATE_PACK0:
p->packSize = (UInt32)b << 8;
return LZMA2_STATE_PACK1;
case LZMA2_STATE_PACK1:
p->packSize |= (UInt32)b;
p->packSize++;
PRF(printf(" %8u", (unsigned)p->packSize));
return LZMA2_IS_THERE_PROP(LZMA2_GET_LZMA_MODE(p)) ? LZMA2_STATE_PROP:
(p->needInitProp ? LZMA2_STATE_ERROR : LZMA2_STATE_DATA);
case LZMA2_STATE_PACK1:
p->packSize |= (UInt32)b;
p->packSize++;
PRF(printf(" %8u", (unsigned)p->packSize));
return LZMA2_IS_THERE_PROP(LZMA2_GET_LZMA_MODE(p))
? LZMA2_STATE_PROP
: (p->needInitProp ? LZMA2_STATE_ERROR : LZMA2_STATE_DATA);
case LZMA2_STATE_PROP:
{
unsigned lc, lp;
if (b >= (9 * 5 * 5))
return LZMA2_STATE_ERROR;
lc = b % 9;
b /= 9;
p->decoder.prop.pb = b / 5;
lp = b % 5;
if (lc + lp > LZMA2_LCLP_MAX)
return LZMA2_STATE_ERROR;
p->decoder.prop.lc = lc;
p->decoder.prop.lp = lp;
p->needInitProp = False;
return LZMA2_STATE_DATA;
}
}
return LZMA2_STATE_ERROR;
case LZMA2_STATE_PROP:
{
unsigned lc, lp;
if (b >= (9 * 5 * 5))
return LZMA2_STATE_ERROR;
lc = b % 9;
b /= 9;
p->decoder.prop.pb = b / 5;
lp = b % 5;
if (lc + lp > LZMA2_LCLP_MAX)
return LZMA2_STATE_ERROR;
p->decoder.prop.lc = lc;
p->decoder.prop.lp = lp;
p->needInitProp = False;
return LZMA2_STATE_DATA;
}
}
return LZMA2_STATE_ERROR;
}
static void LzmaDec_UpdateWithUncompressed(CLzmaDec *p, const Byte *src, SizeT size)
static void LzmaDec_UpdateWithUncompressed(CLzmaDec* p, const Byte* src, SizeT size)
{
memcpy(p->dic + p->dicPos, src, size);
p->dicPos += size;
if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= size)
p->checkDicSize = p->prop.dicSize;
p->processedPos += (UInt32)size;
memcpy(p->dic + p->dicPos, src, size);
p->dicPos += size;
if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= size)
p->checkDicSize = p->prop.dicSize;
p->processedPos += (UInt32)size;
}
void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState);
void LzmaDec_InitDicAndState(CLzmaDec* p, Bool initDic, Bool initState);
SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
SRes Lzma2Dec_DecodeToDic(CLzma2Dec* p, SizeT dicLimit,
const Byte* src, SizeT* srcLen, ELzmaFinishMode finishMode, ELzmaStatus* status)
{
SizeT inSize = *srcLen;
*srcLen = 0;
*status = LZMA_STATUS_NOT_SPECIFIED;
SizeT inSize = *srcLen;
*srcLen = 0;
*status = LZMA_STATUS_NOT_SPECIFIED;
while (p->state != LZMA2_STATE_FINISHED)
{
SizeT dicPos = p->decoder.dicPos;
while (p->state != LZMA2_STATE_FINISHED)
{
SizeT dicPos = p->decoder.dicPos;
if (p->state == LZMA2_STATE_ERROR)
return SZ_ERROR_DATA;
if (p->state == LZMA2_STATE_ERROR)
return SZ_ERROR_DATA;
if (dicPos == dicLimit && finishMode == LZMA_FINISH_ANY)
{
*status = LZMA_STATUS_NOT_FINISHED;
return SZ_OK;
}
if (dicPos == dicLimit && finishMode == LZMA_FINISH_ANY)
{
*status = LZMA_STATUS_NOT_FINISHED;
return SZ_OK;
}
if (p->state != LZMA2_STATE_DATA && p->state != LZMA2_STATE_DATA_CONT)
{
if (*srcLen == inSize)
{
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
(*srcLen)++;
p->state = Lzma2Dec_UpdateState(p, *src++);
if (p->state != LZMA2_STATE_DATA && p->state != LZMA2_STATE_DATA_CONT)
{
if (*srcLen == inSize)
{
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
(*srcLen)++;
p->state = Lzma2Dec_UpdateState(p, *src++);
if (dicPos == dicLimit && p->state != LZMA2_STATE_FINISHED)
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
continue;
}
if (dicPos == dicLimit && p->state != LZMA2_STATE_FINISHED)
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
continue;
}
{
SizeT destSizeCur = dicLimit - dicPos;
SizeT srcSizeCur = inSize - *srcLen;
ELzmaFinishMode curFinishMode = LZMA_FINISH_ANY;
{
SizeT destSizeCur = dicLimit - dicPos;
SizeT srcSizeCur = inSize - *srcLen;
ELzmaFinishMode curFinishMode = LZMA_FINISH_ANY;
if (p->unpackSize <= destSizeCur)
{
destSizeCur = (SizeT)p->unpackSize;
curFinishMode = LZMA_FINISH_END;
}
if (p->unpackSize <= destSizeCur)
{
destSizeCur = (SizeT)p->unpackSize;
curFinishMode = LZMA_FINISH_END;
}
if (LZMA2_IS_UNCOMPRESSED_STATE(p))
{
if (*srcLen == inSize)
{
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
if (LZMA2_IS_UNCOMPRESSED_STATE(p))
{
if (*srcLen == inSize)
{
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
if (p->state == LZMA2_STATE_DATA)
{
Bool initDic = (p->control == LZMA2_CONTROL_COPY_RESET_DIC);
if (initDic)
p->needInitProp = p->needInitState = True;
else if (p->needInitDic)
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
p->needInitDic = False;
LzmaDec_InitDicAndState(&p->decoder, initDic, False);
}
if (p->state == LZMA2_STATE_DATA)
{
Bool initDic = (p->control == LZMA2_CONTROL_COPY_RESET_DIC);
if (initDic)
p->needInitProp = p->needInitState = True;
else if (p->needInitDic)
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
p->needInitDic = False;
LzmaDec_InitDicAndState(&p->decoder, initDic, False);
}
if (srcSizeCur > destSizeCur)
srcSizeCur = destSizeCur;
if (srcSizeCur > destSizeCur)
srcSizeCur = destSizeCur;
if (srcSizeCur == 0)
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
if (srcSizeCur == 0)
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
LzmaDec_UpdateWithUncompressed(&p->decoder, src, srcSizeCur);
LzmaDec_UpdateWithUncompressed(&p->decoder, src, srcSizeCur);
src += srcSizeCur;
*srcLen += srcSizeCur;
p->unpackSize -= (UInt32)srcSizeCur;
p->state = (p->unpackSize == 0) ? LZMA2_STATE_CONTROL : LZMA2_STATE_DATA_CONT;
}
else
{
SizeT outSizeProcessed;
SRes res;
src += srcSizeCur;
*srcLen += srcSizeCur;
p->unpackSize -= (UInt32)srcSizeCur;
p->state = (p->unpackSize == 0) ? LZMA2_STATE_CONTROL : LZMA2_STATE_DATA_CONT;
}
else
{
SizeT outSizeProcessed;
SRes res;
if (p->state == LZMA2_STATE_DATA)
{
unsigned mode = LZMA2_GET_LZMA_MODE(p);
Bool initDic = (mode == 3);
Bool initState = (mode != 0);
if ((!initDic && p->needInitDic) || (!initState && p->needInitState))
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
if (p->state == LZMA2_STATE_DATA)
{
unsigned mode = LZMA2_GET_LZMA_MODE(p);
Bool initDic = (mode == 3);
Bool initState = (mode != 0);
if ((!initDic && p->needInitDic) || (!initState && p->needInitState))
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
LzmaDec_InitDicAndState(&p->decoder, initDic, initState);
p->needInitDic = False;
p->needInitState = False;
p->state = LZMA2_STATE_DATA_CONT;
}
LzmaDec_InitDicAndState(&p->decoder, initDic, initState);
p->needInitDic = False;
p->needInitState = False;
p->state = LZMA2_STATE_DATA_CONT;
}
if (srcSizeCur > p->packSize)
srcSizeCur = (SizeT)p->packSize;
if (srcSizeCur > p->packSize)
srcSizeCur = (SizeT)p->packSize;
res = LzmaDec_DecodeToDic(&p->decoder, dicPos + destSizeCur, src, &srcSizeCur, curFinishMode, status);
res = LzmaDec_DecodeToDic(&p->decoder, dicPos + destSizeCur, src, &srcSizeCur, curFinishMode, status);
src += srcSizeCur;
*srcLen += srcSizeCur;
p->packSize -= (UInt32)srcSizeCur;
src += srcSizeCur;
*srcLen += srcSizeCur;
p->packSize -= (UInt32)srcSizeCur;
outSizeProcessed = p->decoder.dicPos - dicPos;
p->unpackSize -= (UInt32)outSizeProcessed;
outSizeProcessed = p->decoder.dicPos - dicPos;
p->unpackSize -= (UInt32)outSizeProcessed;
RINOK(res);
if (*status == LZMA_STATUS_NEEDS_MORE_INPUT)
return res;
RINOK(res);
if (*status == LZMA_STATUS_NEEDS_MORE_INPUT)
return res;
if (srcSizeCur == 0 && outSizeProcessed == 0)
{
if (*status != LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
|| p->unpackSize != 0
|| p->packSize != 0)
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
p->state = LZMA2_STATE_CONTROL;
}
if (srcSizeCur == 0 && outSizeProcessed == 0)
{
if (*status != LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
|| p->unpackSize != 0
|| p->packSize != 0)
{
p->state = LZMA2_STATE_ERROR;
return SZ_ERROR_DATA;
}
p->state = LZMA2_STATE_CONTROL;
}
if (*status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK)
*status = LZMA_STATUS_NOT_FINISHED;
}
}
}
if (*status == LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK)
*status = LZMA_STATUS_NOT_FINISHED;
}
}
}
*status = LZMA_STATUS_FINISHED_WITH_MARK;
return SZ_OK;
*status = LZMA_STATUS_FINISHED_WITH_MARK;
return SZ_OK;
}
SRes Lzma2Dec_DecodeToBuf(CLzma2Dec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
SRes Lzma2Dec_DecodeToBuf(CLzma2Dec* p, Byte* dest, SizeT* destLen, const Byte* src, SizeT* srcLen,
ELzmaFinishMode finishMode, ELzmaStatus* status)
{
SizeT outSize = *destLen, inSize = *srcLen;
*srcLen = *destLen = 0;
for (;;)
{
SizeT srcSizeCur = inSize, outSizeCur, dicPos;
ELzmaFinishMode curFinishMode;
SRes res;
if (p->decoder.dicPos == p->decoder.dicBufSize)
p->decoder.dicPos = 0;
dicPos = p->decoder.dicPos;
if (outSize > p->decoder.dicBufSize - dicPos)
{
outSizeCur = p->decoder.dicBufSize;
curFinishMode = LZMA_FINISH_ANY;
}
else
{
outSizeCur = dicPos + outSize;
curFinishMode = finishMode;
}
SizeT outSize = *destLen, inSize = *srcLen;
*srcLen = *destLen = 0;
for (;;)
{
SizeT srcSizeCur = inSize, outSizeCur, dicPos;
ELzmaFinishMode curFinishMode;
SRes res;
if (p->decoder.dicPos == p->decoder.dicBufSize)
p->decoder.dicPos = 0;
dicPos = p->decoder.dicPos;
if (outSize > p->decoder.dicBufSize - dicPos)
{
outSizeCur = p->decoder.dicBufSize;
curFinishMode = LZMA_FINISH_ANY;
}
else
{
outSizeCur = dicPos + outSize;
curFinishMode = finishMode;
}
res = Lzma2Dec_DecodeToDic(p, outSizeCur, src, &srcSizeCur, curFinishMode, status);
src += srcSizeCur;
inSize -= srcSizeCur;
*srcLen += srcSizeCur;
outSizeCur = p->decoder.dicPos - dicPos;
memcpy(dest, p->decoder.dic + dicPos, outSizeCur);
dest += outSizeCur;
outSize -= outSizeCur;
*destLen += outSizeCur;
if (res != 0)
return res;
if (outSizeCur == 0 || outSize == 0)
return SZ_OK;
}
res = Lzma2Dec_DecodeToDic(p, outSizeCur, src, &srcSizeCur, curFinishMode, status);
src += srcSizeCur;
inSize -= srcSizeCur;
*srcLen += srcSizeCur;
outSizeCur = p->decoder.dicPos - dicPos;
memcpy(dest, p->decoder.dic + dicPos, outSizeCur);
dest += outSizeCur;
outSize -= outSizeCur;
*destLen += outSizeCur;
if (res != 0)
return res;
if (outSizeCur == 0 || outSize == 0)
return SZ_OK;
}
}
SRes Lzma2Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
Byte prop, ELzmaFinishMode finishMode, ELzmaStatus *status, ISzAlloc *alloc)
SRes Lzma2Decode(Byte* dest, SizeT* destLen, const Byte* src, SizeT* srcLen,
Byte prop, ELzmaFinishMode finishMode, ELzmaStatus* status, ISzAlloc* alloc)
{
CLzma2Dec p;
SRes res;
SizeT outSize = *destLen, inSize = *srcLen;
*destLen = *srcLen = 0;
*status = LZMA_STATUS_NOT_SPECIFIED;
Lzma2Dec_Construct(&p);
RINOK(Lzma2Dec_AllocateProbs(&p, prop, alloc));
p.decoder.dic = dest;
p.decoder.dicBufSize = outSize;
Lzma2Dec_Init(&p);
*srcLen = inSize;
res = Lzma2Dec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);
*destLen = p.decoder.dicPos;
if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
res = SZ_ERROR_INPUT_EOF;
Lzma2Dec_FreeProbs(&p, alloc);
return res;
CLzma2Dec p;
SRes res;
SizeT outSize = *destLen, inSize = *srcLen;
*destLen = *srcLen = 0;
*status = LZMA_STATUS_NOT_SPECIFIED;
Lzma2Dec_Construct(&p);
RINOK(Lzma2Dec_AllocateProbs(&p, prop, alloc));
p.decoder.dic = dest;
p.decoder.dicBufSize = outSize;
Lzma2Dec_Init(&p);
*srcLen = inSize;
res = Lzma2Dec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);
*destLen = p.decoder.dicPos;
if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
res = SZ_ERROR_INPUT_EOF;
Lzma2Dec_FreeProbs(&p, alloc);
return res;
}

34
SevenZip/Lzma2Dec.h
View file

@ -12,23 +12,23 @@ EXTERN_C_BEGIN
typedef struct
{
CLzmaDec decoder;
UInt32 packSize;
UInt32 unpackSize;
unsigned state;
Byte control;
Bool needInitDic;
Bool needInitState;
Bool needInitProp;
CLzmaDec decoder;
UInt32 packSize;
UInt32 unpackSize;
unsigned state;
Byte control;
Bool needInitDic;
Bool needInitState;
Bool needInitProp;
} CLzma2Dec;
#define Lzma2Dec_Construct(p) LzmaDec_Construct(&(p)->decoder)
#define Lzma2Dec_FreeProbs(p, alloc) LzmaDec_FreeProbs(&(p)->decoder, alloc);
#define Lzma2Dec_Free(p, alloc) LzmaDec_Free(&(p)->decoder, alloc);
SRes Lzma2Dec_AllocateProbs(CLzma2Dec *p, Byte prop, ISzAlloc *alloc);
SRes Lzma2Dec_Allocate(CLzma2Dec *p, Byte prop, ISzAlloc *alloc);
void Lzma2Dec_Init(CLzma2Dec *p);
SRes Lzma2Dec_AllocateProbs(CLzma2Dec* p, Byte prop, ISzAlloc* alloc);
SRes Lzma2Dec_Allocate(CLzma2Dec* p, Byte prop, ISzAlloc* alloc);
void Lzma2Dec_Init(CLzma2Dec* p);
/*
@ -46,11 +46,11 @@ Returns:
SZ_ERROR_DATA - Data error
*/
SRes Lzma2Dec_DecodeToDic(CLzma2Dec *p, SizeT dicLimit,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
SRes Lzma2Dec_DecodeToDic(CLzma2Dec* p, SizeT dicLimit,
const Byte* src, SizeT* srcLen, ELzmaFinishMode finishMode, ELzmaStatus* status);
SRes Lzma2Dec_DecodeToBuf(CLzma2Dec *p, Byte *dest, SizeT *destLen,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
SRes Lzma2Dec_DecodeToBuf(CLzma2Dec* p, Byte* dest, SizeT* destLen,
const Byte* src, SizeT* srcLen, ELzmaFinishMode finishMode, ELzmaStatus* status);
/* ---------- One Call Interface ---------- */
@ -72,8 +72,8 @@ Returns:
SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src).
*/
SRes Lzma2Decode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
Byte prop, ELzmaFinishMode finishMode, ELzmaStatus *status, ISzAlloc *alloc);
SRes Lzma2Decode(Byte* dest, SizeT* destLen, const Byte* src, SizeT* srcLen,
Byte prop, ELzmaFinishMode finishMode, ELzmaStatus* status, ISzAlloc* alloc);
EXTERN_C_END

1627
SevenZip/LzmaDec.c
View file

File diff suppressed because it is too large Load diff

83
SevenZip/LzmaDec.h
View file

@ -25,8 +25,8 @@ EXTERN_C_BEGIN
typedef struct _CLzmaProps
{
unsigned lc, lp, pb;
UInt32 dicSize;
unsigned lc, lp, pb;
UInt32 dicSize;
} CLzmaProps;
/* LzmaProps_Decode - decodes properties
@ -35,7 +35,7 @@ Returns:
SZ_ERROR_UNSUPPORTED - Unsupported properties
*/
SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size);
SRes LzmaProps_Decode(CLzmaProps* p, const Byte* data, unsigned size);
/* ---------- LZMA Decoder state ---------- */
@ -47,28 +47,28 @@ SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size);
typedef struct
{
CLzmaProps prop;
CLzmaProb *probs;
Byte *dic;
const Byte *buf;
UInt32 range, code;
SizeT dicPos;
SizeT dicBufSize;
UInt32 processedPos;
UInt32 checkDicSize;
unsigned state;
UInt32 reps[4];
unsigned remainLen;
int needFlush;
int needInitState;
UInt32 numProbs;
unsigned tempBufSize;
Byte tempBuf[LZMA_REQUIRED_INPUT_MAX];
CLzmaProps prop;
CLzmaProb* probs;
Byte* dic;
const Byte* buf;
UInt32 range, code;
SizeT dicPos;
SizeT dicBufSize;
UInt32 processedPos;
UInt32 checkDicSize;
unsigned state;
UInt32 reps[4];
unsigned remainLen;
int needFlush;
int needInitState;
UInt32 numProbs;
unsigned tempBufSize;
Byte tempBuf[LZMA_REQUIRED_INPUT_MAX];
} CLzmaDec;
#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; }
void LzmaDec_Init(CLzmaDec *p);
void LzmaDec_Init(CLzmaDec* p);
/* There are two types of LZMA streams:
0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
@ -76,8 +76,9 @@ void LzmaDec_Init(CLzmaDec *p);
typedef enum
{
LZMA_FINISH_ANY, /* finish at any point */
LZMA_FINISH_END /* block must be finished at the end */
LZMA_FINISH_ANY,
/* finish at any point */
LZMA_FINISH_END /* block must be finished at the end */
} ELzmaFinishMode;
/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!!
@ -97,11 +98,15 @@ typedef enum
typedef enum
{
LZMA_STATUS_NOT_SPECIFIED, /* use main error code instead */
LZMA_STATUS_FINISHED_WITH_MARK, /* stream was finished with end mark. */
LZMA_STATUS_NOT_FINISHED, /* stream was not finished */
LZMA_STATUS_NEEDS_MORE_INPUT, /* you must provide more input bytes */
LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK /* there is probability that stream was finished without end mark */
LZMA_STATUS_NOT_SPECIFIED,
/* use main error code instead */
LZMA_STATUS_FINISHED_WITH_MARK,
/* stream was finished with end mark. */
LZMA_STATUS_NOT_FINISHED,
/* stream was not finished */
LZMA_STATUS_NEEDS_MORE_INPUT,
/* you must provide more input bytes */
LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK /* there is probability that stream was finished without end mark */
} ELzmaStatus;
/* ELzmaStatus is used only as output value for function call */
@ -129,11 +134,11 @@ LzmaDec_Allocate* can return:
SZ_ERROR_UNSUPPORTED - Unsupported properties
*/
SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc);
void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc);
SRes LzmaDec_AllocateProbs(CLzmaDec* p, const Byte* props, unsigned propsSize, ISzAlloc* alloc);
void LzmaDec_FreeProbs(CLzmaDec* p, ISzAlloc* alloc);
SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc);
void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc);
SRes LzmaDec_Allocate(CLzmaDec* state, const Byte* prop, unsigned propsSize, ISzAlloc* alloc);
void LzmaDec_Free(CLzmaDec* state, ISzAlloc* alloc);
/* ---------- Dictionary Interface ---------- */
@ -176,8 +181,8 @@ Returns:
SZ_ERROR_DATA - Data error
*/
SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
SRes LzmaDec_DecodeToDic(CLzmaDec* p, SizeT dicLimit,
const Byte* src, SizeT* srcLen, ELzmaFinishMode finishMode, ELzmaStatus* status);
/* ---------- Buffer Interface ---------- */
@ -193,8 +198,8 @@ finishMode:
LZMA_FINISH_END - Stream must be finished after (*destLen).
*/
SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen,
const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
SRes LzmaDec_DecodeToBuf(CLzmaDec* p, Byte* dest, SizeT* destLen,
const Byte* src, SizeT* srcLen, ELzmaFinishMode finishMode, ELzmaStatus* status);
/* ---------- One Call Interface ---------- */
@ -218,9 +223,9 @@ Returns:
SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src).
*/
SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
ELzmaStatus *status, ISzAlloc *alloc);
SRes LzmaDecode(Byte* dest, SizeT* destLen, const Byte* src, SizeT* srcLen,
const Byte* propData, unsigned propSize, ELzmaFinishMode finishMode,
ELzmaStatus* status, ISzAlloc* alloc);
EXTERN_C_END

44
SevenZip/Ppmd.h
View file

@ -34,9 +34,9 @@ EXTERN_C_BEGIN
/* SEE-contexts for PPM-contexts with masked symbols */
typedef struct
{
UInt16 Summ; /* Freq */
Byte Shift; /* Speed of Freq change; low Shift is for fast change */
Byte Count; /* Count to next change of Shift */
UInt16 Summ; /* Freq */
Byte Shift; /* Speed of Freq change; low Shift is for fast change */
Byte Count; /* Count to next change of Shift */
} CPpmd_See;
#define Ppmd_See_Update(p) if ((p)->Shift < PPMD_PERIOD_BITS && --(p)->Count == 0) \
@ -44,37 +44,37 @@ typedef struct
typedef struct
{
Byte Symbol;
Byte Freq;
UInt16 SuccessorLow;
UInt16 SuccessorHigh;
Byte Symbol;
Byte Freq;
UInt16 SuccessorLow;
UInt16 SuccessorHigh;
} CPpmd_State;
#pragma pack(pop)
typedef
#ifdef PPMD_32BIT
#ifdef PPMD_32BIT
CPpmd_State *
#else
UInt32
#endif
CPpmd_State_Ref;
#else
UInt32
#endif
CPpmd_State_Ref;
typedef
#ifdef PPMD_32BIT
#ifdef PPMD_32BIT
void *
#else
UInt32
#endif
CPpmd_Void_Ref;
#else
UInt32
#endif
CPpmd_Void_Ref;
typedef
#ifdef PPMD_32BIT
#ifdef PPMD_32BIT
Byte *
#else
UInt32
#endif
CPpmd_Byte_Ref;
#else
UInt32
#endif
CPpmd_Byte_Ref;
#define PPMD_SetAllBitsIn256Bytes(p) \
{ unsigned z; for (z = 0; z < 256 / sizeof(p[0]); z += 8) { \

1119
SevenZip/Ppmd7.c
View file

File diff suppressed because it is too large Load diff

106
SevenZip/Ppmd7.h
View file

@ -22,47 +22,47 @@ EXTERN_C_BEGIN
struct CPpmd7_Context_;
typedef
#ifdef PPMD_32BIT
#ifdef PPMD_32BIT
struct CPpmd7_Context_ *
#else
UInt32
#endif
CPpmd7_Context_Ref;
#else
UInt32
#endif
CPpmd7_Context_Ref;
typedef struct CPpmd7_Context_
{
UInt16 NumStats;
UInt16 SummFreq;
CPpmd_State_Ref Stats;
CPpmd7_Context_Ref Suffix;
UInt16 NumStats;
UInt16 SummFreq;
CPpmd_State_Ref Stats;
CPpmd7_Context_Ref Suffix;
} CPpmd7_Context;
#define Ppmd7Context_OneState(p) ((CPpmd_State *)&(p)->SummFreq)
typedef struct
{
CPpmd7_Context *MinContext, *MaxContext;
CPpmd_State *FoundState;
unsigned OrderFall, InitEsc, PrevSuccess, MaxOrder, HiBitsFlag;
Int32 RunLength, InitRL; /* must be 32-bit at least */
CPpmd7_Context *MinContext, *MaxContext;
CPpmd_State* FoundState;
unsigned OrderFall, InitEsc, PrevSuccess, MaxOrder, HiBitsFlag;
Int32 RunLength, InitRL; /* must be 32-bit at least */
UInt32 Size;
UInt32 GlueCount;
Byte *Base, *LoUnit, *HiUnit, *Text, *UnitsStart;
UInt32 AlignOffset;
UInt32 Size;
UInt32 GlueCount;
Byte *Base, *LoUnit, *HiUnit, *Text, *UnitsStart;
UInt32 AlignOffset;
Byte Indx2Units[PPMD_NUM_INDEXES];
Byte Units2Indx[128];
CPpmd_Void_Ref FreeList[PPMD_NUM_INDEXES];
Byte NS2Indx[256], NS2BSIndx[256], HB2Flag[256];
CPpmd_See DummySee, See[25][16];
UInt16 BinSumm[128][64];
Byte Indx2Units[PPMD_NUM_INDEXES];
Byte Units2Indx[128];
CPpmd_Void_Ref FreeList[PPMD_NUM_INDEXES];
Byte NS2Indx[256], NS2BSIndx[256], HB2Flag[256];
CPpmd_See DummySee, See[25][16];
UInt16 BinSumm[128][64];
} CPpmd7;
void Ppmd7_Construct(CPpmd7 *p);
Bool Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAlloc *alloc);
void Ppmd7_Free(CPpmd7 *p, ISzAlloc *alloc);
void Ppmd7_Init(CPpmd7 *p, unsigned maxOrder);
void Ppmd7_Construct(CPpmd7* p);
Bool Ppmd7_Alloc(CPpmd7* p, UInt32 size, ISzAlloc* alloc);
void Ppmd7_Free(CPpmd7* p, ISzAlloc* alloc);
void Ppmd7_Init(CPpmd7* p, unsigned maxOrder);
#define Ppmd7_WasAllocated(p) ((p)->Base != NULL)
@ -75,15 +75,15 @@ extern const Byte PPMD7_kExpEscape[16];
#define Ppmd7_GetContext(p, ptr) (ptr)
#define Ppmd7_GetStats(p, ctx) ((ctx)->Stats)
#else
#define Ppmd7_GetPtr(p, offs) ((void *)((p)->Base + (offs)))
#define Ppmd7_GetContext(p, offs) ((CPpmd7_Context *)Ppmd7_GetPtr((p), (offs)))
#define Ppmd7_GetStats(p, ctx) ((CPpmd_State *)Ppmd7_GetPtr((p), ((ctx)->Stats)))
#define Ppmd7_GetPtr(p, offs) ((void *)((p)->Base + (offs)))
#define Ppmd7_GetContext(p, offs) ((CPpmd7_Context *)Ppmd7_GetPtr((p), (offs)))
#define Ppmd7_GetStats(p, ctx) ((CPpmd_State *)Ppmd7_GetPtr((p), ((ctx)->Stats)))
#endif
void Ppmd7_Update1(CPpmd7 *p);
void Ppmd7_Update1_0(CPpmd7 *p);
void Ppmd7_Update2(CPpmd7 *p);
void Ppmd7_UpdateBin(CPpmd7 *p);
void Ppmd7_Update1(CPpmd7* p);
void Ppmd7_Update1_0(CPpmd7* p);
void Ppmd7_Update2(CPpmd7* p);
void Ppmd7_UpdateBin(CPpmd7* p);
#define Ppmd7_GetBinSumm(p) \
&p->BinSumm[(unsigned)Ppmd7Context_OneState(p->MinContext)->Freq - 1][p->PrevSuccess + \
@ -92,48 +92,48 @@ void Ppmd7_UpdateBin(CPpmd7 *p);
2 * p->HB2Flag[(unsigned)Ppmd7Context_OneState(p->MinContext)->Symbol] + \
((p->RunLength >> 26) & 0x20)]
CPpmd_See *Ppmd7_MakeEscFreq(CPpmd7 *p, unsigned numMasked, UInt32 *scale);
CPpmd_See* Ppmd7_MakeEscFreq(CPpmd7* p, unsigned numMasked, UInt32* scale);
/* ---------- Decode ---------- */
typedef struct
{
UInt32 (*GetThreshold)(void *p, UInt32 total);
void (*Decode)(void *p, UInt32 start, UInt32 size);
UInt32 (*DecodeBit)(void *p, UInt32 size0);
UInt32 (*GetThreshold)(void* p, UInt32 total);
void (*Decode)(void* p, UInt32 start, UInt32 size);
UInt32 (*DecodeBit)(void* p, UInt32 size0);
} IPpmd7_RangeDec;
typedef struct
{
IPpmd7_RangeDec p;
UInt32 Range;
UInt32 Code;
IByteIn *Stream;
IPpmd7_RangeDec p;
UInt32 Range;
UInt32 Code;
IByteIn* Stream;
} CPpmd7z_RangeDec;
void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec *p);
Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p);
void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec* p);
Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec* p);
#define Ppmd7z_RangeDec_IsFinishedOK(p) ((p)->Code == 0)
int Ppmd7_DecodeSymbol(CPpmd7 *p, IPpmd7_RangeDec *rc);
int Ppmd7_DecodeSymbol(CPpmd7* p, IPpmd7_RangeDec* rc);
/* ---------- Encode ---------- */
typedef struct
{
UInt64 Low;
UInt32 Range;
Byte Cache;
UInt64 CacheSize;
IByteOut *Stream;
UInt64 Low;
UInt32 Range;
Byte Cache;
UInt64 CacheSize;
IByteOut* Stream;
} CPpmd7z_RangeEnc;
void Ppmd7z_RangeEnc_Init(CPpmd7z_RangeEnc *p);
void Ppmd7z_RangeEnc_FlushData(CPpmd7z_RangeEnc *p);
void Ppmd7z_RangeEnc_Init(CPpmd7z_RangeEnc* p);
void Ppmd7z_RangeEnc_FlushData(CPpmd7z_RangeEnc* p);
void Ppmd7_EncodeSymbol(CPpmd7 *p, CPpmd7z_RangeEnc *rc, int symbol);
void Ppmd7_EncodeSymbol(CPpmd7* p, CPpmd7z_RangeEnc* rc, int symbol);
EXTERN_C_END

310
SevenZip/Ppmd7Dec.c
View file

@ -8,182 +8,184 @@ This code is based on PPMd var.H (2001): Dmitry Shkarin : Public domain */
#define kTopValue (1 << 24)
Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec *p)
Bool Ppmd7z_RangeDec_Init(CPpmd7z_RangeDec* p)
{
unsigned i;
p->Code = 0;
p->Range = 0xFFFFFFFF;
if (p->Stream->Read((void *)p->Stream) != 0)
return False;
for (i = 0; i < 4; i++)
p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
return (p->Code < 0xFFFFFFFF);
unsigned i;
p->Code = 0;
p->Range = 0xFFFFFFFF;
if (p->Stream->Read((void*)p->Stream) != 0)
return False;
for (i = 0; i < 4; i++)
p->Code = (p->Code << 8) | p->Stream->Read((void*)p->Stream);
return (p->Code < 0xFFFFFFFF);
}
static UInt32 Range_GetThreshold(void *pp, UInt32 total)
static UInt32 Range_GetThreshold(void* pp, UInt32 total)
{
CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
return (p->Code) / (p->Range /= total);
CPpmd7z_RangeDec* p = (CPpmd7z_RangeDec*)pp;
return (p->Code) / (p->Range /= total);
}
static void Range_Normalize(CPpmd7z_RangeDec *p)
static void Range_Normalize(CPpmd7z_RangeDec* p)
{
if (p->Range < kTopValue)
{
p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
p->Range <<= 8;
if (p->Range < kTopValue)
{
p->Code = (p->Code << 8) | p->Stream->Read((void *)p->Stream);
p->Range <<= 8;
}
}
if (p->Range < kTopValue)
{
p->Code = (p->Code << 8) | p->Stream->Read((void*)p->Stream);
p->Range <<= 8;
if (p->Range < kTopValue)
{
p->Code = (p->Code << 8) | p->Stream->Read((void*)p->Stream);
p->Range <<= 8;
}
}
}
static void Range_Decode(void *pp, UInt32 start, UInt32 size)
static void Range_Decode(void* pp, UInt32 start, UInt32 size)
{
CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
p->Code -= start * p->Range;
p->Range *= size;
Range_Normalize(p);
CPpmd7z_RangeDec* p = (CPpmd7z_RangeDec*)pp;
p->Code -= start * p->Range;
p->Range *= size;
Range_Normalize(p);
}
static UInt32 Range_DecodeBit(void *pp, UInt32 size0)
static UInt32 Range_DecodeBit(void* pp, UInt32 size0)
{
CPpmd7z_RangeDec *p = (CPpmd7z_RangeDec *)pp;
UInt32 newBound = (p->Range >> 14) * size0;
UInt32 symbol;
if (p->Code < newBound)
{
symbol = 0;
p->Range = newBound;
}
else
{
symbol = 1;
p->Code -= newBound;
p->Range -= newBound;
}
Range_Normalize(p);
return symbol;
CPpmd7z_RangeDec* p = (CPpmd7z_RangeDec*)pp;
UInt32 newBound = (p->Range >> 14) * size0;
UInt32 symbol;
if (p->Code < newBound)
{
symbol = 0;
p->Range = newBound;
}
else
{
symbol = 1;
p->Code -= newBound;
p->Range -= newBound;
}
Range_Normalize(p);
return symbol;
}
void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec *p)
void Ppmd7z_RangeDec_CreateVTable(CPpmd7z_RangeDec* p)
{
p->p.GetThreshold = Range_GetThreshold;
p->p.Decode = Range_Decode;
p->p.DecodeBit = Range_DecodeBit;
p->p.GetThreshold = Range_GetThreshold;
p->p.Decode = Range_Decode;
p->p.DecodeBit = Range_DecodeBit;
}
#define MASK(sym) ((signed char *)charMask)[sym]
int Ppmd7_DecodeSymbol(CPpmd7 *p, IPpmd7_RangeDec *rc)
int Ppmd7_DecodeSymbol(CPpmd7* p, IPpmd7_RangeDec* rc)
{
size_t charMask[256 / sizeof(size_t)];
if (p->MinContext->NumStats != 1)
{
CPpmd_State *s = Ppmd7_GetStats(p, p->MinContext);
unsigned i;
UInt32 count, hiCnt;
if ((count = rc->GetThreshold(rc, p->MinContext->SummFreq)) < (hiCnt = s->Freq))
{
Byte symbol;
rc->Decode(rc, 0, s->Freq);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update1_0(p);
return symbol;
}
p->PrevSuccess = 0;
i = p->MinContext->NumStats - 1;
do
{
if ((hiCnt += (++s)->Freq) > count)
{
Byte symbol;
rc->Decode(rc, hiCnt - s->Freq, s->Freq);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update1(p);
return symbol;
}
}
while (--i);
if (count >= p->MinContext->SummFreq)
return -2;
p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol];
rc->Decode(rc, hiCnt, p->MinContext->SummFreq - hiCnt);
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(s->Symbol) = 0;
i = p->MinContext->NumStats - 1;
do { MASK((--s)->Symbol) = 0; } while (--i);
}
else
{
UInt16 *prob = Ppmd7_GetBinSumm(p);
if (rc->DecodeBit(rc, *prob) == 0)
{
Byte symbol;
*prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
symbol = (p->FoundState = Ppmd7Context_OneState(p->MinContext))->Symbol;
Ppmd7_UpdateBin(p);
return symbol;
}
*prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
p->InitEsc = PPMD7_kExpEscape[*prob >> 10];
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(Ppmd7Context_OneState(p->MinContext)->Symbol) = 0;
p->PrevSuccess = 0;
}
for (;;)
{
CPpmd_State *ps[256], *s;
UInt32 freqSum, count, hiCnt;
CPpmd_See *see;
unsigned i, num, numMasked = p->MinContext->NumStats;
do
{
p->OrderFall++;
if (!p->MinContext->Suffix)
return -1;
p->MinContext = Ppmd7_GetContext(p, p->MinContext->Suffix);
}
while (p->MinContext->NumStats == numMasked);
hiCnt = 0;
s = Ppmd7_GetStats(p, p->MinContext);
i = 0;
num = p->MinContext->NumStats - numMasked;
do
{
int k = (int)(MASK(s->Symbol));
hiCnt += (s->Freq & k);
ps[i] = s++;
i -= k;
}
while (i != num);
size_t charMask[256 / sizeof(size_t)];
if (p->MinContext->NumStats != 1)
{
CPpmd_State* s = Ppmd7_GetStats(p, p->MinContext);
unsigned i;
UInt32 count, hiCnt;
if ((count = rc->GetThreshold(rc, p->MinContext->SummFreq)) < (hiCnt = s->Freq))
{
Byte symbol;
rc->Decode(rc, 0, s->Freq);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update1_0(p);
return symbol;
}
p->PrevSuccess = 0;
i = p->MinContext->NumStats - 1;
do
{
if ((hiCnt += (++s)->Freq) > count)
{
Byte symbol;
rc->Decode(rc, hiCnt - s->Freq, s->Freq);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update1(p);
return symbol;
}
}
while (--i);
if (count >= p->MinContext->SummFreq)
return -2;
p->HiBitsFlag = p->HB2Flag[p->FoundState->Symbol];
rc->Decode(rc, hiCnt, p->MinContext->SummFreq - hiCnt);
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(s->Symbol) = 0;
i = p->MinContext->NumStats - 1;
do { MASK((--s)->Symbol) = 0; }
while (--i);
}
else
{
UInt16* prob = Ppmd7_GetBinSumm(p);
if (rc->DecodeBit(rc, *prob) == 0)
{
Byte symbol;
*prob = (UInt16)PPMD_UPDATE_PROB_0(*prob);
symbol = (p->FoundState = Ppmd7Context_OneState(p->MinContext))->Symbol;
Ppmd7_UpdateBin(p);
return symbol;
}
*prob = (UInt16)PPMD_UPDATE_PROB_1(*prob);
p->InitEsc = PPMD7_kExpEscape[*prob >> 10];
PPMD_SetAllBitsIn256Bytes(charMask);
MASK(Ppmd7Context_OneState(p->MinContext)->Symbol) = 0;
p->PrevSuccess = 0;
}
for (;;)
{
CPpmd_State *ps[256], *s;
UInt32 freqSum, count, hiCnt;
CPpmd_See* see;
unsigned i, num, numMasked = p->MinContext->NumStats;
do
{
p->OrderFall++;
if (!p->MinContext->Suffix)
return -1;
p->MinContext = Ppmd7_GetContext(p, p->MinContext->Suffix);
}
while (p->MinContext->NumStats == numMasked);
hiCnt = 0;
s = Ppmd7_GetStats(p, p->MinContext);
i = 0;
num = p->MinContext->NumStats - numMasked;
do
{
int k = (int)(MASK(s->Symbol));
hiCnt += (s->Freq & k);
ps[i] = s++;
i -= k;
}
while (i != num);
see = Ppmd7_MakeEscFreq(p, numMasked, &freqSum);
freqSum += hiCnt;
count = rc->GetThreshold(rc, freqSum);
see = Ppmd7_MakeEscFreq(p, numMasked, &freqSum);
freqSum += hiCnt;
count = rc->GetThreshold(rc, freqSum);
if (count < hiCnt)
{
Byte symbol;
CPpmd_State **pps = ps;
for (hiCnt = 0; (hiCnt += (*pps)->Freq) <= count; pps++);
s = *pps;
rc->Decode(rc, hiCnt - s->Freq, s->Freq);
Ppmd_See_Update(see);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update2(p);
return symbol;
}
if (count >= freqSum)
return -2;
rc->Decode(rc, hiCnt, freqSum - hiCnt);
see->Summ = (UInt16)(see->Summ + freqSum);
do { MASK(ps[--i]->Symbol) = 0; } while (i != 0);
}
if (count < hiCnt)
{
Byte symbol;
CPpmd_State** pps = ps;
for (hiCnt = 0; (hiCnt += (*pps)->Freq) <= count; pps++);
s = *pps;
rc->Decode(rc, hiCnt - s->Freq, s->Freq);
Ppmd_See_Update(see);
p->FoundState = s;
symbol = s->Symbol;
Ppmd7_Update2(p);
return symbol;
}
if (count >= freqSum)
return -2;
rc->Decode(rc, hiCnt, freqSum - hiCnt);
see->Summ = (UInt16)(see->Summ + freqSum);
do { MASK(ps[--i]->Symbol) = 0; }
while (i != 0);
}
}