PhysicsFS 2.0.3 imported.
This commit is contained in:
parent
bcc0937726
commit
993311d151
459 changed files with 87785 additions and 0 deletions
26
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchARM.c
Normal file
26
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchARM.c
Normal file
|
@ -0,0 +1,26 @@
|
|||
/* BranchARM.c */
|
||||
|
||||
#include "BranchARM.h"
|
||||
|
||||
UInt32 ARM_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding)
|
||||
{
|
||||
UInt32 i;
|
||||
for (i = 0; i + 4 <= size; i += 4)
|
||||
{
|
||||
if (data[i + 3] == 0xEB)
|
||||
{
|
||||
UInt32 dest;
|
||||
UInt32 src = (data[i + 2] << 16) | (data[i + 1] << 8) | (data[i + 0]);
|
||||
src <<= 2;
|
||||
if (encoding)
|
||||
dest = nowPos + i + 8 + src;
|
||||
else
|
||||
dest = src - (nowPos + i + 8);
|
||||
dest >>= 2;
|
||||
data[i + 2] = (Byte)(dest >> 16);
|
||||
data[i + 1] = (Byte)(dest >> 8);
|
||||
data[i + 0] = (Byte)dest;
|
||||
}
|
||||
}
|
||||
return i;
|
||||
}
|
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchARM.h
Normal file
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchARM.h
Normal file
|
@ -0,0 +1,10 @@
|
|||
/* BranchARM.h */
|
||||
|
||||
#ifndef __BRANCH_ARM_H
|
||||
#define __BRANCH_ARM_H
|
||||
|
||||
#include "BranchTypes.h"
|
||||
|
||||
UInt32 ARM_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding);
|
||||
|
||||
#endif
|
35
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchARMThumb.c
Normal file
35
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchARMThumb.c
Normal file
|
@ -0,0 +1,35 @@
|
|||
/* BranchARMThumb.c */
|
||||
|
||||
#include "BranchARMThumb.h"
|
||||
|
||||
UInt32 ARMThumb_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding)
|
||||
{
|
||||
UInt32 i;
|
||||
for (i = 0; i + 4 <= size; i += 2)
|
||||
{
|
||||
if ((data[i + 1] & 0xF8) == 0xF0 &&
|
||||
(data[i + 3] & 0xF8) == 0xF8)
|
||||
{
|
||||
UInt32 dest;
|
||||
UInt32 src =
|
||||
((data[i + 1] & 0x7) << 19) |
|
||||
(data[i + 0] << 11) |
|
||||
((data[i + 3] & 0x7) << 8) |
|
||||
(data[i + 2]);
|
||||
|
||||
src <<= 1;
|
||||
if (encoding)
|
||||
dest = nowPos + i + 4 + src;
|
||||
else
|
||||
dest = src - (nowPos + i + 4);
|
||||
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;
|
||||
}
|
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchARMThumb.h
Normal file
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchARMThumb.h
Normal file
|
@ -0,0 +1,10 @@
|
|||
/* BranchARMThumb.h */
|
||||
|
||||
#ifndef __BRANCH_ARM_THUMB_H
|
||||
#define __BRANCH_ARM_THUMB_H
|
||||
|
||||
#include "BranchTypes.h"
|
||||
|
||||
UInt32 ARMThumb_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding);
|
||||
|
||||
#endif
|
66
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchIA64.c
Normal file
66
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchIA64.c
Normal file
|
@ -0,0 +1,66 @@
|
|||
/* BranchIA64.c */
|
||||
|
||||
#include "BranchIA64.h"
|
||||
|
||||
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
|
||||
};
|
||||
|
||||
UInt32 IA64_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding)
|
||||
{
|
||||
UInt32 i;
|
||||
for (i = 0; i + 16 <= 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
|
||||
/* && (instNorm & 0x3F)== 0 */
|
||||
)
|
||||
{
|
||||
UInt32 src = (UInt32)((instNorm >> 13) & 0xFFFFF);
|
||||
UInt32 dest;
|
||||
src |= ((UInt32)(instNorm >> 36) & 1) << 20;
|
||||
|
||||
src <<= 4;
|
||||
|
||||
if (encoding)
|
||||
dest = nowPos + i + src;
|
||||
else
|
||||
dest = src - (nowPos + i);
|
||||
|
||||
dest >>= 4;
|
||||
|
||||
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;
|
||||
}
|
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchIA64.h
Normal file
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchIA64.h
Normal file
|
@ -0,0 +1,10 @@
|
|||
/* BranchIA64.h */
|
||||
|
||||
#ifndef __BRANCH_IA64_H
|
||||
#define __BRANCH_IA64_H
|
||||
|
||||
#include "BranchTypes.h"
|
||||
|
||||
UInt32 IA64_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding);
|
||||
|
||||
#endif
|
36
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchPPC.c
Normal file
36
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchPPC.c
Normal file
|
@ -0,0 +1,36 @@
|
|||
/* BranchPPC.c */
|
||||
|
||||
#include "BranchPPC.h"
|
||||
|
||||
UInt32 PPC_B_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding)
|
||||
{
|
||||
UInt32 i;
|
||||
for (i = 0; i + 4 <= size; i += 4)
|
||||
{
|
||||
/* PowerPC branch 6(48) 24(Offset) 1(Abs) 1(Link) */
|
||||
if ((data[i] >> 2) == 0x12 &&
|
||||
(
|
||||
(data[i + 3] & 3) == 1
|
||||
/* || (data[i+3] & 3) == 3 */
|
||||
)
|
||||
)
|
||||
{
|
||||
UInt32 src = ((data[i + 0] & 3) << 24) |
|
||||
(data[i + 1] << 16) |
|
||||
(data[i + 2] << 8) |
|
||||
(data[i + 3] & (~3));
|
||||
|
||||
UInt32 dest;
|
||||
if (encoding)
|
||||
dest = nowPos + i + src;
|
||||
else
|
||||
dest = src - (nowPos + 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;
|
||||
}
|
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchPPC.h
Normal file
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchPPC.h
Normal file
|
@ -0,0 +1,10 @@
|
|||
/* BranchPPC.h */
|
||||
|
||||
#ifndef __BRANCH_PPC_H
|
||||
#define __BRANCH_PPC_H
|
||||
|
||||
#include "BranchTypes.h"
|
||||
|
||||
UInt32 PPC_B_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding);
|
||||
|
||||
#endif
|
36
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchSPARC.c
Normal file
36
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchSPARC.c
Normal file
|
@ -0,0 +1,36 @@
|
|||
/* BranchSPARC.c */
|
||||
|
||||
#include "BranchSPARC.h"
|
||||
|
||||
UInt32 SPARC_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding)
|
||||
{
|
||||
UInt32 i;
|
||||
for (i = 0; i + 4 <= 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 = nowPos + i + src;
|
||||
else
|
||||
dest = src - (nowPos + i);
|
||||
dest >>= 2;
|
||||
|
||||
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;
|
||||
}
|
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchSPARC.h
Normal file
10
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchSPARC.h
Normal file
|
@ -0,0 +1,10 @@
|
|||
/* BranchSPARC.h */
|
||||
|
||||
#ifndef __BRANCH_SPARC_H
|
||||
#define __BRANCH_SPARC_H
|
||||
|
||||
#include "BranchTypes.h"
|
||||
|
||||
UInt32 SPARC_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding);
|
||||
|
||||
#endif
|
51
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchTypes.h
Normal file
51
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchTypes.h
Normal file
|
@ -0,0 +1,51 @@
|
|||
/* BranchTypes.h */
|
||||
|
||||
#ifndef __BRANCHTYPES_H
|
||||
#define __BRANCHTYPES_H
|
||||
|
||||
#ifndef _7ZIP_BYTE_DEFINED
|
||||
#define _7ZIP_BYTE_DEFINED
|
||||
typedef unsigned char Byte;
|
||||
#endif
|
||||
|
||||
#ifndef _7ZIP_UINT16_DEFINED
|
||||
#define _7ZIP_UINT16_DEFINED
|
||||
typedef unsigned short UInt16;
|
||||
#endif
|
||||
|
||||
#ifndef _7ZIP_UINT32_DEFINED
|
||||
#define _7ZIP_UINT32_DEFINED
|
||||
#ifdef _LZMA_UINT32_IS_ULONG
|
||||
typedef unsigned long UInt32;
|
||||
#else
|
||||
typedef unsigned int UInt32;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef _7ZIP_UINT64_DEFINED
|
||||
#define _7ZIP_UINT64_DEFINED
|
||||
#ifdef _SZ_NO_INT_64
|
||||
typedef unsigned long UInt64;
|
||||
#else
|
||||
#if defined(_MSC_VER) || defined(__BORLANDC__)
|
||||
typedef unsigned __int64 UInt64;
|
||||
#else
|
||||
typedef unsigned long long int UInt64;
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* #define _LZMA_NO_SYSTEM_SIZE_T */
|
||||
/* You can use it, if you don't want <stddef.h> */
|
||||
|
||||
#ifndef _7ZIP_SIZET_DEFINED
|
||||
#define _7ZIP_SIZET_DEFINED
|
||||
#ifdef _LZMA_NO_SYSTEM_SIZE_T
|
||||
typedef UInt32 SizeT;
|
||||
#else
|
||||
#include <stddef.h>
|
||||
typedef size_t SizeT;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#endif
|
84
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchX86.c
Normal file
84
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchX86.c
Normal file
|
@ -0,0 +1,84 @@
|
|||
/* BranchX86.c */
|
||||
|
||||
#include "BranchX86.h"
|
||||
|
||||
#define Test86MSByte(b) ((b) == 0 || (b) == 0xFF)
|
||||
|
||||
const Byte kMaskToAllowedStatus[8] = {1, 1, 1, 0, 1, 0, 0, 0};
|
||||
const Byte kMaskToBitNumber[8] = {0, 1, 2, 2, 3, 3, 3, 3};
|
||||
|
||||
SizeT x86_Convert(Byte *buffer, SizeT endPos, UInt32 nowPos, UInt32 *prevMaskMix, int encoding)
|
||||
{
|
||||
SizeT bufferPos = 0, prevPosT;
|
||||
UInt32 prevMask = *prevMaskMix & 0x7;
|
||||
if (endPos < 5)
|
||||
return 0;
|
||||
nowPos += 5;
|
||||
prevPosT = (SizeT)0 - 1;
|
||||
|
||||
for(;;)
|
||||
{
|
||||
Byte *p = buffer + bufferPos;
|
||||
Byte *limit = buffer + endPos - 4;
|
||||
for (; p < limit; p++)
|
||||
if ((*p & 0xFE) == 0xE8)
|
||||
break;
|
||||
bufferPos = (SizeT)(p - buffer);
|
||||
if (p >= limit)
|
||||
break;
|
||||
prevPosT = bufferPos - prevPosT;
|
||||
if (prevPosT > 3)
|
||||
prevMask = 0;
|
||||
else
|
||||
{
|
||||
prevMask = (prevMask << ((int)prevPosT - 1)) & 0x7;
|
||||
if (prevMask != 0)
|
||||
{
|
||||
Byte b = p[4 - kMaskToBitNumber[prevMask]];
|
||||
if (!kMaskToAllowedStatus[prevMask] || Test86MSByte(b))
|
||||
{
|
||||
prevPosT = bufferPos;
|
||||
prevMask = ((prevMask << 1) & 0x7) | 1;
|
||||
bufferPos++;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
prevPosT = bufferPos;
|
||||
|
||||
if (Test86MSByte(p[4]))
|
||||
{
|
||||
UInt32 src = ((UInt32)p[4] << 24) | ((UInt32)p[3] << 16) | ((UInt32)p[2] << 8) | ((UInt32)p[1]);
|
||||
UInt32 dest;
|
||||
for (;;)
|
||||
{
|
||||
Byte b;
|
||||
int index;
|
||||
if (encoding)
|
||||
dest = (nowPos + (UInt32)bufferPos) + src;
|
||||
else
|
||||
dest = src - (nowPos + (UInt32)bufferPos);
|
||||
if (prevMask == 0)
|
||||
break;
|
||||
index = kMaskToBitNumber[prevMask] * 8;
|
||||
b = (Byte)(dest >> (24 - index));
|
||||
if (!Test86MSByte(b))
|
||||
break;
|
||||
src = dest ^ ((1 << (32 - index)) - 1);
|
||||
}
|
||||
p[4] = (Byte)(~(((dest >> 24) & 1) - 1));
|
||||
p[3] = (Byte)(dest >> 16);
|
||||
p[2] = (Byte)(dest >> 8);
|
||||
p[1] = (Byte)dest;
|
||||
bufferPos += 5;
|
||||
}
|
||||
else
|
||||
{
|
||||
prevMask = ((prevMask << 1) & 0x7) | 1;
|
||||
bufferPos++;
|
||||
}
|
||||
}
|
||||
prevPosT = bufferPos - prevPosT;
|
||||
*prevMaskMix = ((prevPosT > 3) ? 0 : ((prevMask << ((int)prevPosT - 1)) & 0x7));
|
||||
return bufferPos;
|
||||
}
|
12
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchX86.h
Normal file
12
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchX86.h
Normal file
|
@ -0,0 +1,12 @@
|
|||
/* BranchX86.h */
|
||||
|
||||
#ifndef __BRANCHX86_H
|
||||
#define __BRANCHX86_H
|
||||
|
||||
#include "BranchTypes.h"
|
||||
|
||||
#define x86_Convert_Init(state) { state = 0; }
|
||||
|
||||
SizeT x86_Convert(Byte *buffer, SizeT endPos, UInt32 nowPos, UInt32 *state, int encoding);
|
||||
|
||||
#endif
|
135
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchX86_2.c
Normal file
135
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchX86_2.c
Normal file
|
@ -0,0 +1,135 @@
|
|||
// BranchX86_2.c
|
||||
|
||||
#include "BranchX86_2.h"
|
||||
|
||||
#include "../../Alloc.h"
|
||||
|
||||
#ifdef _LZMA_PROB32
|
||||
#define CProb UInt32
|
||||
#else
|
||||
#define CProb UInt16
|
||||
#endif
|
||||
|
||||
#define IsJcc(b0, b1) ((b0) == 0x0F && ((b1) & 0xF0) == 0x80)
|
||||
#define IsJ(b0, b1) ((b1 & 0xFE) == 0xE8 || IsJcc(b0, b1))
|
||||
|
||||
#define kNumTopBits 24
|
||||
#define kTopValue ((UInt32)1 << kNumTopBits)
|
||||
|
||||
#define kNumBitModelTotalBits 11
|
||||
#define kBitModelTotal (1 << kNumBitModelTotalBits)
|
||||
#define kNumMoveBits 5
|
||||
|
||||
#define RC_READ_BYTE (*Buffer++)
|
||||
|
||||
#define RC_INIT2 Code = 0; Range = 0xFFFFFFFF; \
|
||||
{ int i; for(i = 0; i < 5; i++) { RC_TEST; Code = (Code << 8) | RC_READ_BYTE; }}
|
||||
|
||||
#define RC_TEST { if (Buffer == BufferLim) return BCJ2_RESULT_DATA_ERROR; }
|
||||
|
||||
#define RC_INIT(buffer, bufferSize) Buffer = buffer; BufferLim = buffer + bufferSize; RC_INIT2
|
||||
|
||||
#define RC_NORMALIZE if (Range < kTopValue) { RC_TEST; Range <<= 8; Code = (Code << 8) | RC_READ_BYTE; }
|
||||
|
||||
#define IfBit0(p) RC_NORMALIZE; bound = (Range >> kNumBitModelTotalBits) * *(p); if (Code < bound)
|
||||
#define UpdateBit0(p) Range = bound; *(p) += (kBitModelTotal - *(p)) >> kNumMoveBits;
|
||||
#define UpdateBit1(p) Range -= bound; Code -= bound; *(p) -= (*(p)) >> kNumMoveBits;
|
||||
// #define UpdateBit0(p) Range = bound; *(p) = (CProb)(*(p) + ((kBitModelTotal - *(p)) >> kNumMoveBits));
|
||||
// #define UpdateBit1(p) Range -= bound; Code -= bound; *(p) = (CProb)(*(p) - (*(p) >> kNumMoveBits));
|
||||
|
||||
int x86_2_Decode(
|
||||
const Byte *buf0, SizeT size0,
|
||||
const Byte *buf1, SizeT size1,
|
||||
const Byte *buf2, SizeT size2,
|
||||
const Byte *buf3, SizeT size3,
|
||||
Byte *outBuf, SizeT outSize)
|
||||
{
|
||||
CProb p[256 + 2];
|
||||
SizeT inPos = 0, outPos = 0;
|
||||
|
||||
const Byte *Buffer, *BufferLim;
|
||||
UInt32 Range, Code;
|
||||
Byte prevByte = 0;
|
||||
|
||||
unsigned int i;
|
||||
for (i = 0; i < sizeof(p) / sizeof(p[0]); i++)
|
||||
p[i] = kBitModelTotal >> 1;
|
||||
RC_INIT(buf3, size3);
|
||||
|
||||
if (outSize == 0)
|
||||
return BCJ2_RESULT_OK;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
Byte b;
|
||||
CProb *prob;
|
||||
UInt32 bound;
|
||||
|
||||
SizeT limit = size0 - inPos;
|
||||
if (outSize - outPos < limit)
|
||||
limit = outSize - outPos;
|
||||
while (limit != 0)
|
||||
{
|
||||
Byte b = buf0[inPos];
|
||||
outBuf[outPos++] = b;
|
||||
if (IsJ(prevByte, b))
|
||||
break;
|
||||
inPos++;
|
||||
prevByte = b;
|
||||
limit--;
|
||||
}
|
||||
|
||||
if (limit == 0 || outPos == outSize)
|
||||
break;
|
||||
|
||||
b = buf0[inPos++];
|
||||
|
||||
if (b == 0xE8)
|
||||
prob = p + prevByte;
|
||||
else if (b == 0xE9)
|
||||
prob = p + 256;
|
||||
else
|
||||
prob = p + 257;
|
||||
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob)
|
||||
prevByte = b;
|
||||
}
|
||||
else
|
||||
{
|
||||
UInt32 dest;
|
||||
const Byte *v;
|
||||
UpdateBit1(prob)
|
||||
if (b == 0xE8)
|
||||
{
|
||||
v = buf1;
|
||||
if (size1 < 4)
|
||||
return BCJ2_RESULT_DATA_ERROR;
|
||||
buf1 += 4;
|
||||
size1 -= 4;
|
||||
}
|
||||
else
|
||||
{
|
||||
v = buf2;
|
||||
if (size2 < 4)
|
||||
return BCJ2_RESULT_DATA_ERROR;
|
||||
buf2 += 4;
|
||||
size2 -= 4;
|
||||
}
|
||||
dest = (((UInt32)v[0] << 24) | ((UInt32)v[1] << 16) |
|
||||
((UInt32)v[2] << 8) | ((UInt32)v[3])) - ((UInt32)outPos + 4);
|
||||
outBuf[outPos++] = (Byte)dest;
|
||||
if (outPos == outSize)
|
||||
break;
|
||||
outBuf[outPos++] = (Byte)(dest >> 8);
|
||||
if (outPos == outSize)
|
||||
break;
|
||||
outBuf[outPos++] = (Byte)(dest >> 16);
|
||||
if (outPos == outSize)
|
||||
break;
|
||||
outBuf[outPos++] = prevByte = (Byte)(dest >> 24);
|
||||
}
|
||||
}
|
||||
return (outPos == outSize) ? BCJ2_RESULT_OK : BCJ2_RESULT_DATA_ERROR;
|
||||
}
|
28
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchX86_2.h
Normal file
28
lib/physfs-2.0.3/lzma/C/Compress/Branch/BranchX86_2.h
Normal file
|
@ -0,0 +1,28 @@
|
|||
// BranchX86_2.h
|
||||
|
||||
#ifndef __BRANCHX86_2_H
|
||||
#define __BRANCHX86_2_H
|
||||
|
||||
#include "BranchTypes.h"
|
||||
|
||||
#define BCJ2_RESULT_OK 0
|
||||
#define BCJ2_RESULT_DATA_ERROR 1
|
||||
|
||||
/*
|
||||
Conditions:
|
||||
outSize <= FullOutputSize,
|
||||
where FullOutputSize is full size of output stream of x86_2 filter.
|
||||
|
||||
If buf0 overlaps outBuf, there are two required conditions:
|
||||
1) (buf0 >= outBuf)
|
||||
2) (buf0 + size0 >= outBuf + FullOutputSize).
|
||||
*/
|
||||
|
||||
int x86_2_Decode(
|
||||
const Byte *buf0, SizeT size0,
|
||||
const Byte *buf1, SizeT size1,
|
||||
const Byte *buf2, SizeT size2,
|
||||
const Byte *buf3, SizeT size3,
|
||||
Byte *outBuf, SizeT outSize);
|
||||
|
||||
#endif
|
146
lib/physfs-2.0.3/lzma/C/Compress/Huffman/HuffmanEncode.c
Normal file
146
lib/physfs-2.0.3/lzma/C/Compress/Huffman/HuffmanEncode.c
Normal file
|
@ -0,0 +1,146 @@
|
|||
/* Compress/HuffmanEncode.c */
|
||||
|
||||
#include "HuffmanEncode.h"
|
||||
#include "../../Sort.h"
|
||||
|
||||
#define kMaxLen 16
|
||||
#define NUM_BITS 10
|
||||
#define MASK ((1 << NUM_BITS) - 1)
|
||||
|
||||
#define NUM_COUNTERS 64
|
||||
|
||||
/* use BLOCK_SORT_EXTERNAL_FLAGS if blockSize > 1M */
|
||||
#define HUFFMAN_SPEED_OPT
|
||||
|
||||
void Huffman_Generate(const UInt32 *freqs, UInt32 *p, Byte *lens, UInt32 numSymbols, UInt32 maxLen)
|
||||
{
|
||||
UInt32 num = 0;
|
||||
/* if (maxLen > 10) maxLen = 10; */
|
||||
{
|
||||
UInt32 i;
|
||||
|
||||
#ifdef HUFFMAN_SPEED_OPT
|
||||
|
||||
UInt32 counters[NUM_COUNTERS];
|
||||
for (i = 0; i < NUM_COUNTERS; i++)
|
||||
counters[i] = 0;
|
||||
for (i = 0; i < numSymbols; i++)
|
||||
{
|
||||
UInt32 freq = freqs[i];
|
||||
counters[(freq < NUM_COUNTERS - 1) ? freq : NUM_COUNTERS - 1]++;
|
||||
}
|
||||
|
||||
for (i = 1; i < NUM_COUNTERS; i++)
|
||||
{
|
||||
UInt32 temp = counters[i];
|
||||
counters[i] = num;
|
||||
num += temp;
|
||||
}
|
||||
|
||||
for (i = 0; i < numSymbols; i++)
|
||||
{
|
||||
UInt32 freq = freqs[i];
|
||||
if (freq == 0)
|
||||
lens[i] = 0;
|
||||
else
|
||||
p[counters[((freq < NUM_COUNTERS - 1) ? freq : NUM_COUNTERS - 1)]++] = i | (freq << NUM_BITS);
|
||||
}
|
||||
counters[0] = 0;
|
||||
HeapSort(p + counters[NUM_COUNTERS - 2], counters[NUM_COUNTERS - 1] - counters[NUM_COUNTERS - 2]);
|
||||
|
||||
#else
|
||||
|
||||
for (i = 0; i < numSymbols; i++)
|
||||
{
|
||||
UInt32 freq = freqs[i];
|
||||
if (freq == 0)
|
||||
lens[i] = 0;
|
||||
else
|
||||
p[num++] = i | (freq << NUM_BITS);
|
||||
}
|
||||
HeapSort(p, num);
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
if (num < 2)
|
||||
{
|
||||
int minCode = 0;
|
||||
int maxCode = 1;
|
||||
if (num == 1)
|
||||
{
|
||||
maxCode = p[0] & MASK;
|
||||
if (maxCode == 0)
|
||||
maxCode++;
|
||||
}
|
||||
p[minCode] = 0;
|
||||
p[maxCode] = 1;
|
||||
lens[minCode] = lens[maxCode] = 1;
|
||||
return;
|
||||
}
|
||||
|
||||
{
|
||||
UInt32 b, e, i;
|
||||
|
||||
i = b = e = 0;
|
||||
do
|
||||
{
|
||||
UInt32 n, m, freq;
|
||||
n = (i != num && (b == e || (p[i] >> NUM_BITS) <= (p[b] >> NUM_BITS))) ? i++ : b++;
|
||||
freq = (p[n] & ~MASK);
|
||||
p[n] = (p[n] & MASK) | (e << NUM_BITS);
|
||||
m = (i != num && (b == e || (p[i] >> NUM_BITS) <= (p[b] >> NUM_BITS))) ? i++ : b++;
|
||||
freq += (p[m] & ~MASK);
|
||||
p[m] = (p[m] & MASK) | (e << NUM_BITS);
|
||||
p[e] = (p[e] & MASK) | freq;
|
||||
e++;
|
||||
}
|
||||
while (num - e > 1);
|
||||
|
||||
{
|
||||
UInt32 lenCounters[kMaxLen + 1];
|
||||
for (i = 0; i <= kMaxLen; i++)
|
||||
lenCounters[i] = 0;
|
||||
|
||||
p[--e] &= MASK;
|
||||
lenCounters[1] = 2;
|
||||
while (e > 0)
|
||||
{
|
||||
UInt32 len = (p[p[--e] >> NUM_BITS] >> NUM_BITS) + 1;
|
||||
p[e] = (p[e] & MASK) | (len << NUM_BITS);
|
||||
if (len >= maxLen)
|
||||
for (len = maxLen - 1; lenCounters[len] == 0; len--);
|
||||
lenCounters[len]--;
|
||||
lenCounters[len + 1] += 2;
|
||||
}
|
||||
|
||||
{
|
||||
UInt32 len;
|
||||
i = 0;
|
||||
for (len = maxLen; len != 0; len--)
|
||||
{
|
||||
UInt32 num;
|
||||
for (num = lenCounters[len]; num != 0; num--)
|
||||
lens[p[i++] & MASK] = (Byte)len;
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
UInt32 nextCodes[kMaxLen + 1];
|
||||
{
|
||||
UInt32 code = 0;
|
||||
UInt32 len;
|
||||
for (len = 1; len <= kMaxLen; len++)
|
||||
nextCodes[len] = code = (code + lenCounters[len - 1]) << 1;
|
||||
}
|
||||
/* if (code + lenCounters[kMaxLen] - 1 != (1 << kMaxLen) - 1) throw 1; */
|
||||
|
||||
{
|
||||
UInt32 i;
|
||||
for (i = 0; i < numSymbols; i++)
|
||||
p[i] = nextCodes[lens[i]]++;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
18
lib/physfs-2.0.3/lzma/C/Compress/Huffman/HuffmanEncode.h
Normal file
18
lib/physfs-2.0.3/lzma/C/Compress/Huffman/HuffmanEncode.h
Normal file
|
@ -0,0 +1,18 @@
|
|||
/* Compress/HuffmanEncode.h */
|
||||
|
||||
#ifndef __COMPRESS_HUFFMANENCODE_H
|
||||
#define __COMPRESS_HUFFMANENCODE_H
|
||||
|
||||
#include "../../Types.h"
|
||||
|
||||
/*
|
||||
Conditions:
|
||||
num <= 1024 = 2 ^ NUM_BITS
|
||||
Sum(freqs) < 4M = 2 ^ (32 - NUM_BITS)
|
||||
maxLen <= 16 = kMaxLen
|
||||
Num_Items(p) >= HUFFMAN_TEMP_SIZE(num)
|
||||
*/
|
||||
|
||||
void Huffman_Generate(const UInt32 *freqs, UInt32 *p, Byte *lens, UInt32 num, UInt32 maxLen);
|
||||
|
||||
#endif
|
53
lib/physfs-2.0.3/lzma/C/Compress/Lz/LzHash.h
Normal file
53
lib/physfs-2.0.3/lzma/C/Compress/Lz/LzHash.h
Normal file
|
@ -0,0 +1,53 @@
|
|||
/* LzHash.h */
|
||||
|
||||
#ifndef __C_LZHASH_H
|
||||
#define __C_LZHASH_H
|
||||
|
||||
#define kHash2Size (1 << 10)
|
||||
#define kHash3Size (1 << 16)
|
||||
#define kHash4Size (1 << 20)
|
||||
|
||||
#define kFix3HashSize (kHash2Size)
|
||||
#define kFix4HashSize (kHash2Size + kHash3Size)
|
||||
#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size)
|
||||
|
||||
#define HASH2_CALC hashValue = cur[0] | ((UInt32)cur[1] << 8);
|
||||
|
||||
#define HASH3_CALC { \
|
||||
UInt32 temp = g_CrcTable[cur[0]] ^ cur[1]; \
|
||||
hash2Value = temp & (kHash2Size - 1); \
|
||||
hashValue = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; }
|
||||
|
||||
#define HASH4_CALC { \
|
||||
UInt32 temp = g_CrcTable[cur[0]] ^ cur[1]; \
|
||||
hash2Value = temp & (kHash2Size - 1); \
|
||||
hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
|
||||
hashValue = (temp ^ ((UInt32)cur[2] << 8) ^ (g_CrcTable[cur[3]] << 5)) & p->hashMask; }
|
||||
|
||||
#define HASH5_CALC { \
|
||||
UInt32 temp = g_CrcTable[cur[0]] ^ cur[1]; \
|
||||
hash2Value = temp & (kHash2Size - 1); \
|
||||
hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
|
||||
hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (g_CrcTable[cur[3]] << 5)); \
|
||||
hashValue = (hash4Value ^ (g_CrcTable[cur[4]] << 3)) & p->hashMask; \
|
||||
hash4Value &= (kHash4Size - 1); }
|
||||
|
||||
/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((UInt32)cur[1] << 8)) ^ g_CrcTable[cur[2]]) & 0xFFFF; */
|
||||
#define HASH_ZIP_CALC hashValue = ((cur[2] | ((UInt32)cur[0] << 8)) ^ g_CrcTable[cur[1]]) & 0xFFFF;
|
||||
|
||||
|
||||
#define MT_HASH2_CALC \
|
||||
hash2Value = (g_CrcTable[cur[0]] ^ cur[1]) & (kHash2Size - 1);
|
||||
|
||||
#define MT_HASH3_CALC { \
|
||||
UInt32 temp = g_CrcTable[cur[0]] ^ cur[1]; \
|
||||
hash2Value = temp & (kHash2Size - 1); \
|
||||
hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); }
|
||||
|
||||
#define MT_HASH4_CALC { \
|
||||
UInt32 temp = g_CrcTable[cur[0]] ^ cur[1]; \
|
||||
hash2Value = temp & (kHash2Size - 1); \
|
||||
hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
|
||||
hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (g_CrcTable[cur[3]] << 5)) & (kHash4Size - 1); }
|
||||
|
||||
#endif
|
742
lib/physfs-2.0.3/lzma/C/Compress/Lz/MatchFinder.c
Normal file
742
lib/physfs-2.0.3/lzma/C/Compress/Lz/MatchFinder.c
Normal file
|
@ -0,0 +1,742 @@
|
|||
/* MatchFinder.c */
|
||||
/* Please call InitCrcTable before */
|
||||
|
||||
#include <string.h>
|
||||
|
||||
#include "MatchFinder.h"
|
||||
#include "LzHash.h"
|
||||
|
||||
#include "../../7zCrc.h"
|
||||
|
||||
#define kEmptyHashValue 0
|
||||
#define kMaxValForNormalize ((UInt32)0xFFFFFFFF)
|
||||
#define kNormalizeStepMin (1 << 10) /* it must be power of 2 */
|
||||
#define kNormalizeMask (~(kNormalizeStepMin - 1))
|
||||
#define kMaxHistorySize ((UInt32)3 << 30)
|
||||
|
||||
#define kStartMaxLen 3
|
||||
|
||||
void LzInWindow_Free(CMatchFinder *p, ISzAlloc *alloc)
|
||||
{
|
||||
if (!p->directInput)
|
||||
{
|
||||
alloc->Free(p->bufferBase);
|
||||
p->bufferBase = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */
|
||||
|
||||
int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *alloc)
|
||||
{
|
||||
UInt32 blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv;
|
||||
if (p->directInput)
|
||||
{
|
||||
p->blockSize = blockSize;
|
||||
return 1;
|
||||
}
|
||||
if (p->bufferBase == 0 || p->blockSize != blockSize)
|
||||
{
|
||||
LzInWindow_Free(p, alloc);
|
||||
p->blockSize = blockSize;
|
||||
p->bufferBase = (Byte *)alloc->Alloc(blockSize);
|
||||
}
|
||||
return (p->bufferBase != 0);
|
||||
}
|
||||
|
||||
Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
|
||||
Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
|
||||
|
||||
UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
|
||||
|
||||
void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue)
|
||||
{
|
||||
p->posLimit -= subValue;
|
||||
p->pos -= subValue;
|
||||
p->streamPos -= subValue;
|
||||
}
|
||||
|
||||
void MatchFinder_ReadBlock(CMatchFinder *p)
|
||||
{
|
||||
if (p->streamEndWasReached || p->result != SZ_OK)
|
||||
return;
|
||||
for (;;)
|
||||
{
|
||||
Byte *dest = p->buffer + (p->streamPos - p->pos);
|
||||
UInt32 numReadBytes;
|
||||
UInt32 size = (UInt32)(p->bufferBase + p->blockSize - dest);
|
||||
if (size == 0)
|
||||
return;
|
||||
p->result = p->stream->Read(p->stream, dest, size, &numReadBytes);
|
||||
if (p->result != SZ_OK)
|
||||
return;
|
||||
if (numReadBytes == 0)
|
||||
{
|
||||
p->streamEndWasReached = 1;
|
||||
return;
|
||||
}
|
||||
p->streamPos += numReadBytes;
|
||||
if (p->streamPos - p->pos > p->keepSizeAfter)
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void MatchFinder_MoveBlock(CMatchFinder *p)
|
||||
{
|
||||
memmove(p->bufferBase,
|
||||
p->buffer - p->keepSizeBefore,
|
||||
p->streamPos - p->pos + p->keepSizeBefore);
|
||||
p->buffer = p->bufferBase + p->keepSizeBefore;
|
||||
}
|
||||
|
||||
int MatchFinder_NeedMove(CMatchFinder *p)
|
||||
{
|
||||
/* if (p->streamEndWasReached) return 0; */
|
||||
return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter);
|
||||
}
|
||||
|
||||
void MatchFinder_ReadIfRequired(CMatchFinder *p)
|
||||
{
|
||||
if (p->streamEndWasReached)
|
||||
return;
|
||||
if (p->keepSizeAfter >= p->streamPos - p->pos)
|
||||
MatchFinder_ReadBlock(p);
|
||||
}
|
||||
|
||||
void MatchFinder_CheckAndMoveAndRead(CMatchFinder *p)
|
||||
{
|
||||
if (MatchFinder_NeedMove(p))
|
||||
MatchFinder_MoveBlock(p);
|
||||
MatchFinder_ReadBlock(p);
|
||||
}
|
||||
|
||||
void MatchFinder_SetDefaultSettings(CMatchFinder *p)
|
||||
{
|
||||
p->cutValue = 32;
|
||||
p->btMode = 1;
|
||||
p->numHashBytes = 4;
|
||||
/* p->skipModeBits = 0; */
|
||||
p->directInput = 0;
|
||||
p->bigHash = 0;
|
||||
}
|
||||
|
||||
void MatchFinder_Construct(CMatchFinder *p)
|
||||
{
|
||||
p->bufferBase = 0;
|
||||
p->directInput = 0;
|
||||
p->hash = 0;
|
||||
MatchFinder_SetDefaultSettings(p);
|
||||
}
|
||||
|
||||
void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAlloc *alloc)
|
||||
{
|
||||
alloc->Free(p->hash);
|
||||
p->hash = 0;
|
||||
}
|
||||
|
||||
void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc)
|
||||
{
|
||||
MatchFinder_FreeThisClassMemory(p, alloc);
|
||||
LzInWindow_Free(p, alloc);
|
||||
}
|
||||
|
||||
CLzRef* AllocRefs(UInt32 num, ISzAlloc *alloc)
|
||||
{
|
||||
size_t sizeInBytes = (size_t)num * sizeof(CLzRef);
|
||||
if (sizeInBytes / sizeof(CLzRef) != num)
|
||||
return 0;
|
||||
return (CLzRef *)alloc->Alloc(sizeInBytes);
|
||||
}
|
||||
|
||||
int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
|
||||
UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
|
||||
ISzAlloc *alloc)
|
||||
{
|
||||
UInt32 sizeReserv;
|
||||
if (historySize > kMaxHistorySize)
|
||||
{
|
||||
MatchFinder_Free(p, alloc);
|
||||
return 0;
|
||||
}
|
||||
sizeReserv = historySize >> 1;
|
||||
if (historySize > ((UInt32)2 << 30))
|
||||
sizeReserv = historySize >> 2;
|
||||
sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19);
|
||||
|
||||
p->keepSizeBefore = historySize + keepAddBufferBefore + 1;
|
||||
p->keepSizeAfter = matchMaxLen + keepAddBufferAfter;
|
||||
/* we need one additional byte, since we use MoveBlock after pos++ and before dictionary using */
|
||||
if (LzInWindow_Create(p, sizeReserv, alloc))
|
||||
{
|
||||
UInt32 newCyclicBufferSize = (historySize /* >> p->skipModeBits */) + 1;
|
||||
UInt32 hs;
|
||||
p->matchMaxLen = matchMaxLen;
|
||||
{
|
||||
p->fixedHashSize = 0;
|
||||
if (p->numHashBytes == 2)
|
||||
hs = (1 << 16) - 1;
|
||||
else
|
||||
{
|
||||
hs = historySize - 1;
|
||||
hs |= (hs >> 1);
|
||||
hs |= (hs >> 2);
|
||||
hs |= (hs >> 4);
|
||||
hs |= (hs >> 8);
|
||||
hs >>= 1;
|
||||
/* hs >>= p->skipModeBits; */
|
||||
hs |= 0xFFFF; /* don't change it! It's required for Deflate */
|
||||
if (hs > (1 << 24))
|
||||
{
|
||||
if (p->numHashBytes == 3)
|
||||
hs = (1 << 24) - 1;
|
||||
else
|
||||
hs >>= 1;
|
||||
}
|
||||
}
|
||||
p->hashMask = hs;
|
||||
hs++;
|
||||
if (p->numHashBytes > 2) p->fixedHashSize += kHash2Size;
|
||||
if (p->numHashBytes > 3) p->fixedHashSize += kHash3Size;
|
||||
if (p->numHashBytes > 4) p->fixedHashSize += kHash4Size;
|
||||
hs += p->fixedHashSize;
|
||||
}
|
||||
|
||||
{
|
||||
UInt32 prevSize = p->hashSizeSum + p->numSons;
|
||||
UInt32 newSize;
|
||||
p->historySize = historySize;
|
||||
p->hashSizeSum = hs;
|
||||
p->cyclicBufferSize = newCyclicBufferSize;
|
||||
p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize);
|
||||
newSize = p->hashSizeSum + p->numSons;
|
||||
if (p->hash != 0 && prevSize == newSize)
|
||||
return 1;
|
||||
MatchFinder_FreeThisClassMemory(p, alloc);
|
||||
p->hash = AllocRefs(newSize, alloc);
|
||||
if (p->hash != 0)
|
||||
{
|
||||
p->son = p->hash + p->hashSizeSum;
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
MatchFinder_Free(p, alloc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void MatchFinder_SetLimits(CMatchFinder *p)
|
||||
{
|
||||
UInt32 limit = kMaxValForNormalize - p->pos;
|
||||
UInt32 limit2 = p->cyclicBufferSize - p->cyclicBufferPos;
|
||||
if (limit2 < limit)
|
||||
limit = limit2;
|
||||
limit2 = p->streamPos - p->pos;
|
||||
if (limit2 <= p->keepSizeAfter)
|
||||
{
|
||||
if (limit2 > 0)
|
||||
limit2 = 1;
|
||||
}
|
||||
else
|
||||
limit2 -= p->keepSizeAfter;
|
||||
if (limit2 < limit)
|
||||
limit = limit2;
|
||||
{
|
||||
UInt32 lenLimit = p->streamPos - p->pos;
|
||||
if (lenLimit > p->matchMaxLen)
|
||||
lenLimit = p->matchMaxLen;
|
||||
p->lenLimit = lenLimit;
|
||||
}
|
||||
p->posLimit = p->pos + limit;
|
||||
}
|
||||
|
||||
void MatchFinder_Init(CMatchFinder *p)
|
||||
{
|
||||
UInt32 i;
|
||||
for(i = 0; i < p->hashSizeSum; i++)
|
||||
p->hash[i] = kEmptyHashValue;
|
||||
p->cyclicBufferPos = 0;
|
||||
p->buffer = p->bufferBase;
|
||||
p->pos = p->streamPos = p->cyclicBufferSize;
|
||||
p->result = SZ_OK;
|
||||
p->streamEndWasReached = 0;
|
||||
MatchFinder_ReadBlock(p);
|
||||
MatchFinder_SetLimits(p);
|
||||
}
|
||||
|
||||
UInt32 MatchFinder_GetSubValue(CMatchFinder *p)
|
||||
{
|
||||
return (p->pos - p->historySize - 1) & kNormalizeMask;
|
||||
}
|
||||
|
||||
void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
|
||||
{
|
||||
UInt32 i;
|
||||
for (i = 0; i < numItems; i++)
|
||||
{
|
||||
UInt32 value = items[i];
|
||||
if (value <= subValue)
|
||||
value = kEmptyHashValue;
|
||||
else
|
||||
value -= subValue;
|
||||
items[i] = value;
|
||||
}
|
||||
}
|
||||
|
||||
void MatchFinder_Normalize(CMatchFinder *p)
|
||||
{
|
||||
UInt32 subValue = MatchFinder_GetSubValue(p);
|
||||
MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons);
|
||||
MatchFinder_ReduceOffsets(p, subValue);
|
||||
}
|
||||
|
||||
void MatchFinder_CheckLimits(CMatchFinder *p)
|
||||
{
|
||||
if (p->pos == kMaxValForNormalize)
|
||||
MatchFinder_Normalize(p);
|
||||
if (!p->streamEndWasReached && p->keepSizeAfter == p->streamPos - p->pos)
|
||||
MatchFinder_CheckAndMoveAndRead(p);
|
||||
if (p->cyclicBufferPos == p->cyclicBufferSize)
|
||||
p->cyclicBufferPos = 0;
|
||||
MatchFinder_SetLimits(p);
|
||||
}
|
||||
|
||||
UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
|
||||
UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
|
||||
UInt32 *distances, UInt32 maxLen)
|
||||
{
|
||||
son[_cyclicBufferPos] = curMatch;
|
||||
for (;;)
|
||||
{
|
||||
UInt32 delta = pos - curMatch;
|
||||
if (cutValue-- == 0 || delta >= _cyclicBufferSize)
|
||||
return distances;
|
||||
{
|
||||
const Byte *pb = cur - delta;
|
||||
curMatch = son[_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)];
|
||||
if (pb[maxLen] == cur[maxLen] && *pb == *cur)
|
||||
{
|
||||
UInt32 len = 0;
|
||||
while(++len != lenLimit)
|
||||
if (pb[len] != cur[len])
|
||||
break;
|
||||
if (maxLen < len)
|
||||
{
|
||||
*distances++ = maxLen = len;
|
||||
*distances++ = delta - 1;
|
||||
if (len == lenLimit)
|
||||
return distances;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
|
||||
UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
|
||||
UInt32 *distances, UInt32 maxLen)
|
||||
{
|
||||
CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
|
||||
CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
|
||||
UInt32 len0 = 0, len1 = 0;
|
||||
for (;;)
|
||||
{
|
||||
UInt32 delta = pos - curMatch;
|
||||
if (cutValue-- == 0 || delta >= _cyclicBufferSize)
|
||||
{
|
||||
*ptr0 = *ptr1 = kEmptyHashValue;
|
||||
return distances;
|
||||
}
|
||||
{
|
||||
CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
|
||||
const Byte *pb = cur - delta;
|
||||
UInt32 len = (len0 < len1 ? len0 : len1);
|
||||
if (pb[len] == cur[len])
|
||||
{
|
||||
if (++len != lenLimit && pb[len] == cur[len])
|
||||
while(++len != lenLimit)
|
||||
if (pb[len] != cur[len])
|
||||
break;
|
||||
if (maxLen < len)
|
||||
{
|
||||
*distances++ = maxLen = len;
|
||||
*distances++ = delta - 1;
|
||||
if (len == lenLimit)
|
||||
{
|
||||
*ptr1 = pair[0];
|
||||
*ptr0 = pair[1];
|
||||
return distances;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (pb[len] < cur[len])
|
||||
{
|
||||
*ptr1 = curMatch;
|
||||
ptr1 = pair + 1;
|
||||
curMatch = *ptr1;
|
||||
len1 = len;
|
||||
}
|
||||
else
|
||||
{
|
||||
*ptr0 = curMatch;
|
||||
ptr0 = pair;
|
||||
curMatch = *ptr0;
|
||||
len0 = len;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
|
||||
UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue)
|
||||
{
|
||||
CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
|
||||
CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
|
||||
UInt32 len0 = 0, len1 = 0;
|
||||
for (;;)
|
||||
{
|
||||
UInt32 delta = pos - curMatch;
|
||||
if (cutValue-- == 0 || delta >= _cyclicBufferSize)
|
||||
{
|
||||
*ptr0 = *ptr1 = kEmptyHashValue;
|
||||
return;
|
||||
}
|
||||
{
|
||||
CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
|
||||
const Byte *pb = cur - delta;
|
||||
UInt32 len = (len0 < len1 ? len0 : len1);
|
||||
if (pb[len] == cur[len])
|
||||
{
|
||||
while(++len != lenLimit)
|
||||
if (pb[len] != cur[len])
|
||||
break;
|
||||
{
|
||||
if (len == lenLimit)
|
||||
{
|
||||
*ptr1 = pair[0];
|
||||
*ptr0 = pair[1];
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (pb[len] < cur[len])
|
||||
{
|
||||
*ptr1 = curMatch;
|
||||
ptr1 = pair + 1;
|
||||
curMatch = *ptr1;
|
||||
len1 = len;
|
||||
}
|
||||
else
|
||||
{
|
||||
*ptr0 = curMatch;
|
||||
ptr0 = pair;
|
||||
curMatch = *ptr0;
|
||||
len0 = len;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#define MOVE_POS \
|
||||
++p->cyclicBufferPos; \
|
||||
p->buffer++; \
|
||||
if (++p->pos == p->posLimit) MatchFinder_CheckLimits(p);
|
||||
|
||||
#define MOVE_POS_RET MOVE_POS return offset;
|
||||
|
||||
void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; }
|
||||
|
||||
#define GET_MATCHES_HEADER2(minLen, ret_op) \
|
||||
UInt32 lenLimit; UInt32 hashValue; const Byte *cur; UInt32 curMatch; \
|
||||
lenLimit = p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \
|
||||
cur = p->buffer;
|
||||
|
||||
#define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0)
|
||||
#define SKIP_HEADER(minLen) GET_MATCHES_HEADER2(minLen, continue)
|
||||
|
||||
#define MF_PARAMS(p) p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue
|
||||
|
||||
#define GET_MATCHES_FOOTER(offset, maxLen) \
|
||||
offset = (UInt32)(GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), \
|
||||
distances + offset, maxLen) - distances); MOVE_POS_RET;
|
||||
|
||||
#define SKIP_FOOTER \
|
||||
SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS;
|
||||
|
||||
UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
|
||||
{
|
||||
UInt32 offset;
|
||||
GET_MATCHES_HEADER(2)
|
||||
HASH2_CALC;
|
||||
curMatch = p->hash[hashValue];
|
||||
p->hash[hashValue] = p->pos;
|
||||
offset = 0;
|
||||
GET_MATCHES_FOOTER(offset, 1)
|
||||
}
|
||||
|
||||
UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
|
||||
{
|
||||
UInt32 offset;
|
||||
GET_MATCHES_HEADER(3)
|
||||
HASH_ZIP_CALC;
|
||||
curMatch = p->hash[hashValue];
|
||||
p->hash[hashValue] = p->pos;
|
||||
offset = 0;
|
||||
GET_MATCHES_FOOTER(offset, 2)
|
||||
}
|
||||
|
||||
UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
|
||||
{
|
||||
UInt32 hash2Value, delta2, maxLen, offset;
|
||||
GET_MATCHES_HEADER(3)
|
||||
|
||||
HASH3_CALC;
|
||||
|
||||
delta2 = p->pos - p->hash[hash2Value];
|
||||
curMatch = p->hash[kFix3HashSize + hashValue];
|
||||
|
||||
p->hash[hash2Value] =
|
||||
p->hash[kFix3HashSize + hashValue] = p->pos;
|
||||
|
||||
|
||||
maxLen = 2;
|
||||
offset = 0;
|
||||
if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
|
||||
{
|
||||
for (; maxLen != lenLimit; maxLen++)
|
||||
if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
|
||||
break;
|
||||
distances[0] = maxLen;
|
||||
distances[1] = delta2 - 1;
|
||||
offset = 2;
|
||||
if (maxLen == lenLimit)
|
||||
{
|
||||
SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
|
||||
MOVE_POS_RET;
|
||||
}
|
||||
}
|
||||
GET_MATCHES_FOOTER(offset, maxLen)
|
||||
}
|
||||
|
||||
UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
|
||||
{
|
||||
UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
|
||||
GET_MATCHES_HEADER(4)
|
||||
|
||||
HASH4_CALC;
|
||||
|
||||
delta2 = p->pos - p->hash[ hash2Value];
|
||||
delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
|
||||
curMatch = p->hash[kFix4HashSize + hashValue];
|
||||
|
||||
p->hash[ hash2Value] =
|
||||
p->hash[kFix3HashSize + hash3Value] =
|
||||
p->hash[kFix4HashSize + hashValue] = p->pos;
|
||||
|
||||
maxLen = 1;
|
||||
offset = 0;
|
||||
if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
|
||||
{
|
||||
distances[0] = maxLen = 2;
|
||||
distances[1] = delta2 - 1;
|
||||
offset = 2;
|
||||
}
|
||||
if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
|
||||
{
|
||||
maxLen = 3;
|
||||
distances[offset + 1] = delta3 - 1;
|
||||
offset += 2;
|
||||
delta2 = delta3;
|
||||
}
|
||||
if (offset != 0)
|
||||
{
|
||||
for (; maxLen != lenLimit; maxLen++)
|
||||
if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
|
||||
break;
|
||||
distances[offset - 2] = maxLen;
|
||||
if (maxLen == lenLimit)
|
||||
{
|
||||
SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
|
||||
MOVE_POS_RET;
|
||||
}
|
||||
}
|
||||
if (maxLen < 3)
|
||||
maxLen = 3;
|
||||
GET_MATCHES_FOOTER(offset, maxLen)
|
||||
}
|
||||
|
||||
UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
|
||||
{
|
||||
UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
|
||||
GET_MATCHES_HEADER(4)
|
||||
|
||||
HASH4_CALC;
|
||||
|
||||
delta2 = p->pos - p->hash[ hash2Value];
|
||||
delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
|
||||
curMatch = p->hash[kFix4HashSize + hashValue];
|
||||
|
||||
p->hash[ hash2Value] =
|
||||
p->hash[kFix3HashSize + hash3Value] =
|
||||
p->hash[kFix4HashSize + hashValue] = p->pos;
|
||||
|
||||
maxLen = 1;
|
||||
offset = 0;
|
||||
if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
|
||||
{
|
||||
distances[0] = maxLen = 2;
|
||||
distances[1] = delta2 - 1;
|
||||
offset = 2;
|
||||
}
|
||||
if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
|
||||
{
|
||||
maxLen = 3;
|
||||
distances[offset + 1] = delta3 - 1;
|
||||
offset += 2;
|
||||
delta2 = delta3;
|
||||
}
|
||||
if (offset != 0)
|
||||
{
|
||||
for (; maxLen != lenLimit; maxLen++)
|
||||
if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
|
||||
break;
|
||||
distances[offset - 2] = maxLen;
|
||||
if (maxLen == lenLimit)
|
||||
{
|
||||
p->son[p->cyclicBufferPos] = curMatch;
|
||||
MOVE_POS_RET;
|
||||
}
|
||||
}
|
||||
if (maxLen < 3)
|
||||
maxLen = 3;
|
||||
offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
|
||||
distances + offset, maxLen) - (distances));
|
||||
MOVE_POS_RET
|
||||
}
|
||||
|
||||
UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
|
||||
{
|
||||
UInt32 offset;
|
||||
GET_MATCHES_HEADER(3)
|
||||
HASH_ZIP_CALC;
|
||||
curMatch = p->hash[hashValue];
|
||||
p->hash[hashValue] = p->pos;
|
||||
offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
|
||||
distances, 2) - (distances));
|
||||
MOVE_POS_RET
|
||||
}
|
||||
|
||||
void Bt2_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
|
||||
{
|
||||
do
|
||||
{
|
||||
SKIP_HEADER(2)
|
||||
HASH2_CALC;
|
||||
curMatch = p->hash[hashValue];
|
||||
p->hash[hashValue] = p->pos;
|
||||
SKIP_FOOTER
|
||||
}
|
||||
while (--num != 0);
|
||||
}
|
||||
|
||||
void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
|
||||
{
|
||||
do
|
||||
{
|
||||
SKIP_HEADER(3)
|
||||
HASH_ZIP_CALC;
|
||||
curMatch = p->hash[hashValue];
|
||||
p->hash[hashValue] = p->pos;
|
||||
SKIP_FOOTER
|
||||
}
|
||||
while (--num != 0);
|
||||
}
|
||||
|
||||
void Bt3_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
|
||||
{
|
||||
do
|
||||
{
|
||||
UInt32 hash2Value;
|
||||
SKIP_HEADER(3)
|
||||
HASH3_CALC;
|
||||
curMatch = p->hash[kFix3HashSize + hashValue];
|
||||
p->hash[hash2Value] =
|
||||
p->hash[kFix3HashSize + hashValue] = p->pos;
|
||||
SKIP_FOOTER
|
||||
}
|
||||
while (--num != 0);
|
||||
}
|
||||
|
||||
void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
|
||||
{
|
||||
do
|
||||
{
|
||||
UInt32 hash2Value, hash3Value;
|
||||
SKIP_HEADER(4)
|
||||
HASH4_CALC;
|
||||
curMatch = p->hash[kFix4HashSize + hashValue];
|
||||
p->hash[ hash2Value] =
|
||||
p->hash[kFix3HashSize + hash3Value] = p->pos;
|
||||
p->hash[kFix4HashSize + hashValue] = p->pos;
|
||||
SKIP_FOOTER
|
||||
}
|
||||
while (--num != 0);
|
||||
}
|
||||
|
||||
void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
|
||||
{
|
||||
do
|
||||
{
|
||||
UInt32 hash2Value, hash3Value;
|
||||
SKIP_HEADER(4)
|
||||
HASH4_CALC;
|
||||
curMatch = p->hash[kFix4HashSize + hashValue];
|
||||
p->hash[ hash2Value] =
|
||||
p->hash[kFix3HashSize + hash3Value] =
|
||||
p->hash[kFix4HashSize + hashValue] = p->pos;
|
||||
p->son[p->cyclicBufferPos] = curMatch;
|
||||
MOVE_POS
|
||||
}
|
||||
while (--num != 0);
|
||||
}
|
||||
|
||||
void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
|
||||
{
|
||||
do
|
||||
{
|
||||
SKIP_HEADER(3)
|
||||
HASH_ZIP_CALC;
|
||||
curMatch = p->hash[hashValue];
|
||||
p->hash[hashValue] = p->pos;
|
||||
p->son[p->cyclicBufferPos] = curMatch;
|
||||
MOVE_POS
|
||||
}
|
||||
while (--num != 0);
|
||||
}
|
||||
|
||||
void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable)
|
||||
{
|
||||
vTable->Init = (Mf_Init_Func)MatchFinder_Init;
|
||||
vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte;
|
||||
vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes;
|
||||
vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos;
|
||||
if (!p->btMode)
|
||||
{
|
||||
vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches;
|
||||
vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip;
|
||||
}
|
||||
else if (p->numHashBytes == 2)
|
||||
{
|
||||
vTable->GetMatches = (Mf_GetMatches_Func)Bt2_MatchFinder_GetMatches;
|
||||
vTable->Skip = (Mf_Skip_Func)Bt2_MatchFinder_Skip;
|
||||
}
|
||||
else if (p->numHashBytes == 3)
|
||||
{
|
||||
vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches;
|
||||
vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip;
|
||||
}
|
||||
else
|
||||
{
|
||||
vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches;
|
||||
vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip;
|
||||
}
|
||||
}
|
106
lib/physfs-2.0.3/lzma/C/Compress/Lz/MatchFinder.h
Normal file
106
lib/physfs-2.0.3/lzma/C/Compress/Lz/MatchFinder.h
Normal file
|
@ -0,0 +1,106 @@
|
|||
/* MatchFinder.h */
|
||||
|
||||
#ifndef __MATCHFINDER_H
|
||||
#define __MATCHFINDER_H
|
||||
|
||||
#include "../../IStream.h"
|
||||
|
||||
typedef UInt32 CLzRef;
|
||||
|
||||
typedef struct _CMatchFinder
|
||||
{
|
||||
Byte *buffer;
|
||||
UInt32 pos;
|
||||
UInt32 posLimit;
|
||||
UInt32 streamPos;
|
||||
UInt32 lenLimit;
|
||||
|
||||
UInt32 cyclicBufferPos;
|
||||
UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */
|
||||
|
||||
UInt32 matchMaxLen;
|
||||
CLzRef *hash;
|
||||
CLzRef *son;
|
||||
UInt32 hashMask;
|
||||
UInt32 cutValue;
|
||||
|
||||
Byte *bufferBase;
|
||||
ISeqInStream *stream;
|
||||
int streamEndWasReached;
|
||||
|
||||
UInt32 blockSize;
|
||||
UInt32 keepSizeBefore;
|
||||
UInt32 keepSizeAfter;
|
||||
|
||||
UInt32 numHashBytes;
|
||||
int directInput;
|
||||
int btMode;
|
||||
/* int skipModeBits; */
|
||||
int bigHash;
|
||||
UInt32 historySize;
|
||||
UInt32 fixedHashSize;
|
||||
UInt32 hashSizeSum;
|
||||
UInt32 numSons;
|
||||
|
||||
HRes result;
|
||||
} CMatchFinder;
|
||||
|
||||
#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)
|
||||
#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)])
|
||||
|
||||
#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
|
||||
|
||||
int MatchFinder_NeedMove(CMatchFinder *p);
|
||||
Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
|
||||
void MatchFinder_MoveBlock(CMatchFinder *p);
|
||||
void MatchFinder_ReadIfRequired(CMatchFinder *p);
|
||||
|
||||
void MatchFinder_Construct(CMatchFinder *p);
|
||||
|
||||
/* Conditions:
|
||||
historySize <= 3 GB
|
||||
keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB
|
||||
*/
|
||||
int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
|
||||
UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
|
||||
ISzAlloc *alloc);
|
||||
void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
|
||||
void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems);
|
||||
void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
|
||||
|
||||
UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,
|
||||
UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
|
||||
UInt32 *distances, UInt32 maxLen);
|
||||
|
||||
/*
|
||||
Conditions:
|
||||
Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func.
|
||||
Mf_GetPointerToCurrentPos_Func's result must be used only before any other function
|
||||
*/
|
||||
|
||||
typedef void (*Mf_Init_Func)(void *object);
|
||||
typedef Byte (*Mf_GetIndexByte_Func)(void *object, Int32 index);
|
||||
typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object);
|
||||
typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object);
|
||||
typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances);
|
||||
typedef void (*Mf_Skip_Func)(void *object, UInt32);
|
||||
|
||||
typedef struct _IMatchFinder
|
||||
{
|
||||
Mf_Init_Func Init;
|
||||
Mf_GetIndexByte_Func GetIndexByte;
|
||||
Mf_GetNumAvailableBytes_Func GetNumAvailableBytes;
|
||||
Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos;
|
||||
Mf_GetMatches_Func GetMatches;
|
||||
Mf_Skip_Func Skip;
|
||||
} IMatchFinder;
|
||||
|
||||
void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
|
||||
|
||||
void MatchFinder_Init(CMatchFinder *p);
|
||||
UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
|
||||
UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
|
||||
void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
|
||||
void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
|
||||
|
||||
#endif
|
806
lib/physfs-2.0.3/lzma/C/Compress/Lz/MatchFinderMt.c
Normal file
806
lib/physfs-2.0.3/lzma/C/Compress/Lz/MatchFinderMt.c
Normal file
|
@ -0,0 +1,806 @@
|
|||
/* MatchFinderMt.c */
|
||||
|
||||
#ifdef _WIN32
|
||||
#define USE_ALLOCA
|
||||
#endif
|
||||
|
||||
#ifdef USE_ALLOCA
|
||||
#ifdef _WIN32
|
||||
#include <malloc.h>
|
||||
#else
|
||||
#include <stdlib.h>
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#include "../../7zCrc.h"
|
||||
#include "LzHash.h"
|
||||
|
||||
#include "MatchFinderMt.h"
|
||||
|
||||
void MtSync_Construct(CMtSync *p)
|
||||
{
|
||||
p->wasCreated = False;
|
||||
p->csWasInitialized = False;
|
||||
p->csWasEntered = False;
|
||||
Thread_Construct(&p->thread);
|
||||
Event_Construct(&p->canStart);
|
||||
Event_Construct(&p->wasStarted);
|
||||
Event_Construct(&p->wasStopped);
|
||||
Semaphore_Construct(&p->freeSemaphore);
|
||||
Semaphore_Construct(&p->filledSemaphore);
|
||||
}
|
||||
|
||||
void MtSync_GetNextBlock(CMtSync *p)
|
||||
{
|
||||
if (p->needStart)
|
||||
{
|
||||
p->numProcessedBlocks = 1;
|
||||
p->needStart = False;
|
||||
p->stopWriting = False;
|
||||
p->exit = False;
|
||||
Event_Reset(&p->wasStarted);
|
||||
Event_Reset(&p->wasStopped);
|
||||
|
||||
Event_Set(&p->canStart);
|
||||
Event_Wait(&p->wasStarted);
|
||||
}
|
||||
else
|
||||
{
|
||||
CriticalSection_Leave(&p->cs);
|
||||
p->csWasEntered = False;
|
||||
p->numProcessedBlocks++;
|
||||
Semaphore_Release1(&p->freeSemaphore);
|
||||
}
|
||||
Semaphore_Wait(&p->filledSemaphore);
|
||||
CriticalSection_Enter(&p->cs);
|
||||
p->csWasEntered = True;
|
||||
}
|
||||
|
||||
/* MtSync_StopWriting must be called if Writing was started */
|
||||
|
||||
void MtSync_StopWriting(CMtSync *p)
|
||||
{
|
||||
UInt32 myNumBlocks = p->numProcessedBlocks;
|
||||
if (!Thread_WasCreated(&p->thread) || p->needStart)
|
||||
return;
|
||||
p->stopWriting = True;
|
||||
if (p->csWasEntered)
|
||||
{
|
||||
CriticalSection_Leave(&p->cs);
|
||||
p->csWasEntered = False;
|
||||
}
|
||||
Semaphore_Release1(&p->freeSemaphore);
|
||||
|
||||
Event_Wait(&p->wasStopped);
|
||||
|
||||
while (myNumBlocks++ != p->numProcessedBlocks)
|
||||
{
|
||||
Semaphore_Wait(&p->filledSemaphore);
|
||||
Semaphore_Release1(&p->freeSemaphore);
|
||||
}
|
||||
p->needStart = True;
|
||||
}
|
||||
|
||||
void MtSync_Destruct(CMtSync *p)
|
||||
{
|
||||
if (Thread_WasCreated(&p->thread))
|
||||
{
|
||||
MtSync_StopWriting(p);
|
||||
p->exit = True;
|
||||
if (p->needStart)
|
||||
Event_Set(&p->canStart);
|
||||
Thread_Wait(&p->thread);
|
||||
Thread_Close(&p->thread);
|
||||
}
|
||||
if (p->csWasInitialized)
|
||||
{
|
||||
CriticalSection_Delete(&p->cs);
|
||||
p->csWasInitialized = False;
|
||||
}
|
||||
|
||||
Event_Close(&p->canStart);
|
||||
Event_Close(&p->wasStarted);
|
||||
Event_Close(&p->wasStopped);
|
||||
Semaphore_Close(&p->freeSemaphore);
|
||||
Semaphore_Close(&p->filledSemaphore);
|
||||
|
||||
p->wasCreated = False;
|
||||
}
|
||||
|
||||
HRes MtSync_Create2(CMtSync *p, unsigned (StdCall *startAddress)(void *), void *obj, UInt32 numBlocks)
|
||||
{
|
||||
if (p->wasCreated)
|
||||
return SZ_OK;
|
||||
|
||||
RINOK(CriticalSection_Init(&p->cs));
|
||||
p->csWasInitialized = True;
|
||||
|
||||
RINOK(AutoResetEvent_CreateNotSignaled(&p->canStart));
|
||||
RINOK(AutoResetEvent_CreateNotSignaled(&p->wasStarted));
|
||||
RINOK(AutoResetEvent_CreateNotSignaled(&p->wasStopped));
|
||||
|
||||
RINOK(Semaphore_Create(&p->freeSemaphore, numBlocks, numBlocks));
|
||||
RINOK(Semaphore_Create(&p->filledSemaphore, 0, numBlocks));
|
||||
|
||||
p->needStart = True;
|
||||
|
||||
RINOK(Thread_Create(&p->thread, startAddress, obj));
|
||||
p->wasCreated = True;
|
||||
return SZ_OK;
|
||||
}
|
||||
|
||||
HRes MtSync_Create(CMtSync *p, unsigned (StdCall *startAddress)(void *), void *obj, UInt32 numBlocks)
|
||||
{
|
||||
HRes res = MtSync_Create2(p, startAddress, obj, numBlocks);
|
||||
if (res != SZ_OK)
|
||||
MtSync_Destruct(p);
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
void MtSync_Init(CMtSync *p) { p->needStart = True; }
|
||||
|
||||
#define kMtMaxValForNormalize 0xFFFFFFFF
|
||||
|
||||
#define DEF_GetHeads(name, v) \
|
||||
static void GetHeads ## name(const Byte *p, UInt32 pos, \
|
||||
UInt32 *hash, UInt32 hashMask, UInt32 *heads, UInt32 numHeads) { \
|
||||
for (; numHeads != 0; numHeads--) { \
|
||||
const UInt32 value = (v); p++; *heads++ = pos - hash[value]; hash[value] = pos++; } }
|
||||
|
||||
DEF_GetHeads(2, (p[0] | ((UInt32)p[1] << 8)) & hashMask)
|
||||
DEF_GetHeads(3, (g_CrcTable[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8)) & hashMask)
|
||||
DEF_GetHeads(4, (g_CrcTable[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ (g_CrcTable[p[3]] << 5)) & hashMask)
|
||||
DEF_GetHeads(4b, (g_CrcTable[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ ((UInt32)p[3] << 16)) & hashMask)
|
||||
DEF_GetHeads(5, (g_CrcTable[p[0]] ^ p[1] ^ ((UInt32)p[2] << 8) ^ (g_CrcTable[p[3]] << 5) ^ (g_CrcTable[p[4]] << 3)) & hashMask)
|
||||
|
||||
void HashThreadFunc(CMatchFinderMt *mt)
|
||||
{
|
||||
CMtSync *p = &mt->hashSync;
|
||||
for (;;)
|
||||
{
|
||||
UInt32 numProcessedBlocks = 0;
|
||||
Event_Wait(&p->canStart);
|
||||
Event_Set(&p->wasStarted);
|
||||
for (;;)
|
||||
{
|
||||
if (p->exit)
|
||||
return;
|
||||
if (p->stopWriting)
|
||||
{
|
||||
p->numProcessedBlocks = numProcessedBlocks;
|
||||
Event_Set(&p->wasStopped);
|
||||
break;
|
||||
}
|
||||
|
||||
{
|
||||
CMatchFinder *mf = mt->MatchFinder;
|
||||
if (MatchFinder_NeedMove(mf))
|
||||
{
|
||||
CriticalSection_Enter(&mt->btSync.cs);
|
||||
CriticalSection_Enter(&mt->hashSync.cs);
|
||||
{
|
||||
const Byte *beforePtr = MatchFinder_GetPointerToCurrentPos(mf);
|
||||
const Byte *afterPtr;
|
||||
MatchFinder_MoveBlock(mf);
|
||||
afterPtr = MatchFinder_GetPointerToCurrentPos(mf);
|
||||
mt->pointerToCurPos -= beforePtr - afterPtr;
|
||||
mt->buffer -= beforePtr - afterPtr;
|
||||
}
|
||||
CriticalSection_Leave(&mt->btSync.cs);
|
||||
CriticalSection_Leave(&mt->hashSync.cs);
|
||||
continue;
|
||||
}
|
||||
|
||||
Semaphore_Wait(&p->freeSemaphore);
|
||||
|
||||
MatchFinder_ReadIfRequired(mf);
|
||||
if (mf->pos > (kMtMaxValForNormalize - kMtHashBlockSize))
|
||||
{
|
||||
UInt32 subValue = (mf->pos - mf->historySize - 1);
|
||||
MatchFinder_ReduceOffsets(mf, subValue);
|
||||
MatchFinder_Normalize3(subValue, mf->hash + mf->fixedHashSize, mf->hashMask + 1);
|
||||
}
|
||||
{
|
||||
UInt32 *heads = mt->hashBuf + ((numProcessedBlocks++) & kMtHashNumBlocksMask) * kMtHashBlockSize;
|
||||
UInt32 num = mf->streamPos - mf->pos;
|
||||
heads[0] = 2;
|
||||
heads[1] = num;
|
||||
if (num >= mf->numHashBytes)
|
||||
{
|
||||
num = num - mf->numHashBytes + 1;
|
||||
if (num > kMtHashBlockSize - 2)
|
||||
num = kMtHashBlockSize - 2;
|
||||
mt->GetHeadsFunc(mf->buffer, mf->pos, mf->hash + mf->fixedHashSize, mf->hashMask, heads + 2, num);
|
||||
heads[0] += num;
|
||||
}
|
||||
mf->pos += num;
|
||||
mf->buffer += num;
|
||||
}
|
||||
}
|
||||
|
||||
Semaphore_Release1(&p->filledSemaphore);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void MatchFinderMt_GetNextBlock_Hash(CMatchFinderMt *p)
|
||||
{
|
||||
MtSync_GetNextBlock(&p->hashSync);
|
||||
p->hashBufPosLimit = p->hashBufPos = ((p->hashSync.numProcessedBlocks - 1) & kMtHashNumBlocksMask) * kMtHashBlockSize;
|
||||
p->hashBufPosLimit += p->hashBuf[p->hashBufPos++];
|
||||
p->hashNumAvail = p->hashBuf[p->hashBufPos++];
|
||||
}
|
||||
|
||||
#define kEmptyHashValue 0
|
||||
|
||||
/* #define MFMT_GM_INLINE */
|
||||
|
||||
#ifdef MFMT_GM_INLINE
|
||||
|
||||
#if _MSC_VER >= 1300
|
||||
#define NO_INLINE __declspec(noinline) __fastcall
|
||||
#else
|
||||
#ifdef _MSC_VER
|
||||
#define NO_INLINE __fastcall
|
||||
#endif
|
||||
#endif
|
||||
|
||||
Int32 NO_INLINE GetMatchesSpecN(UInt32 lenLimit, UInt32 pos, const Byte *cur, CLzRef *son,
|
||||
UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
|
||||
UInt32 *_distances, UInt32 _maxLen, const UInt32 *hash, Int32 limit, UInt32 size, UInt32 *posRes)
|
||||
{
|
||||
do
|
||||
{
|
||||
UInt32 *distances = _distances + 1;
|
||||
UInt32 curMatch = pos - *hash++;
|
||||
|
||||
CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
|
||||
CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
|
||||
UInt32 len0 = 0, len1 = 0;
|
||||
UInt32 cutValue = _cutValue;
|
||||
UInt32 maxLen = _maxLen;
|
||||
for (;;)
|
||||
{
|
||||
UInt32 delta = pos - curMatch;
|
||||
if (cutValue-- == 0 || delta >= _cyclicBufferSize)
|
||||
{
|
||||
*ptr0 = *ptr1 = kEmptyHashValue;
|
||||
break;
|
||||
}
|
||||
{
|
||||
CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
|
||||
const Byte *pb = cur - delta;
|
||||
UInt32 len = (len0 < len1 ? len0 : len1);
|
||||
if (pb[len] == cur[len])
|
||||
{
|
||||
if (++len != lenLimit && pb[len] == cur[len])
|
||||
while(++len != lenLimit)
|
||||
if (pb[len] != cur[len])
|
||||
break;
|
||||
if (maxLen < len)
|
||||
{
|
||||
*distances++ = maxLen = len;
|
||||
*distances++ = delta - 1;
|
||||
if (len == lenLimit)
|
||||
{
|
||||
*ptr1 = pair[0];
|
||||
*ptr0 = pair[1];
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (pb[len] < cur[len])
|
||||
{
|
||||
*ptr1 = curMatch;
|
||||
ptr1 = pair + 1;
|
||||
curMatch = *ptr1;
|
||||
len1 = len;
|
||||
}
|
||||
else
|
||||
{
|
||||
*ptr0 = curMatch;
|
||||
ptr0 = pair;
|
||||
curMatch = *ptr0;
|
||||
len0 = len;
|
||||
}
|
||||
}
|
||||
}
|
||||
pos++;
|
||||
_cyclicBufferPos++;
|
||||
cur++;
|
||||
{
|
||||
UInt32 num = (UInt32)(distances - _distances);
|
||||
*_distances = num - 1;
|
||||
_distances += num;
|
||||
limit -= num;
|
||||
}
|
||||
}
|
||||
while (limit > 0 && --size != 0);
|
||||
*posRes = pos;
|
||||
return limit;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
void BtGetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
{
|
||||
UInt32 numProcessed = 0;
|
||||
UInt32 curPos = 2;
|
||||
UInt32 limit = kMtBtBlockSize - (p->matchMaxLen * 2);
|
||||
distances[1] = p->hashNumAvail;
|
||||
while (curPos < limit)
|
||||
{
|
||||
if (p->hashBufPos == p->hashBufPosLimit)
|
||||
{
|
||||
MatchFinderMt_GetNextBlock_Hash(p);
|
||||
distances[1] = numProcessed + p->hashNumAvail;
|
||||
if (p->hashNumAvail >= p->numHashBytes)
|
||||
continue;
|
||||
for (; p->hashNumAvail != 0; p->hashNumAvail--)
|
||||
distances[curPos++] = 0;
|
||||
break;
|
||||
}
|
||||
{
|
||||
UInt32 size = p->hashBufPosLimit - p->hashBufPos;
|
||||
UInt32 lenLimit = p->matchMaxLen;
|
||||
UInt32 pos = p->pos;
|
||||
UInt32 cyclicBufferPos = p->cyclicBufferPos;
|
||||
if (lenLimit >= p->hashNumAvail)
|
||||
lenLimit = p->hashNumAvail;
|
||||
{
|
||||
UInt32 size2 = p->hashNumAvail - lenLimit + 1;
|
||||
if (size2 < size)
|
||||
size = size2;
|
||||
size2 = p->cyclicBufferSize - cyclicBufferPos;
|
||||
if (size2 < size)
|
||||
size = size2;
|
||||
}
|
||||
#ifndef MFMT_GM_INLINE
|
||||
while (curPos < limit && size-- != 0)
|
||||
{
|
||||
UInt32 *startDistances = distances + curPos;
|
||||
UInt32 num = (UInt32)(GetMatchesSpec1(lenLimit, pos - p->hashBuf[p->hashBufPos++],
|
||||
pos, p->buffer, p->son, cyclicBufferPos, p->cyclicBufferSize, p->cutValue,
|
||||
startDistances + 1, p->numHashBytes - 1) - startDistances);
|
||||
*startDistances = num - 1;
|
||||
curPos += num;
|
||||
cyclicBufferPos++;
|
||||
pos++;
|
||||
p->buffer++;
|
||||
}
|
||||
#else
|
||||
{
|
||||
UInt32 posRes;
|
||||
curPos = limit - GetMatchesSpecN(lenLimit, pos, p->buffer, p->son, cyclicBufferPos, p->cyclicBufferSize, p->cutValue,
|
||||
distances + curPos, p->numHashBytes - 1, p->hashBuf + p->hashBufPos, (Int32)(limit - curPos) , size, &posRes);
|
||||
p->hashBufPos += posRes - pos;
|
||||
cyclicBufferPos += posRes - pos;
|
||||
p->buffer += posRes - pos;
|
||||
pos = posRes;
|
||||
}
|
||||
#endif
|
||||
|
||||
numProcessed += pos - p->pos;
|
||||
p->hashNumAvail -= pos - p->pos;
|
||||
p->pos = pos;
|
||||
if (cyclicBufferPos == p->cyclicBufferSize)
|
||||
cyclicBufferPos = 0;
|
||||
p->cyclicBufferPos = cyclicBufferPos;
|
||||
}
|
||||
}
|
||||
distances[0] = curPos;
|
||||
}
|
||||
|
||||
void BtFillBlock(CMatchFinderMt *p, UInt32 globalBlockIndex)
|
||||
{
|
||||
CMtSync *sync = &p->hashSync;
|
||||
if (!sync->needStart)
|
||||
{
|
||||
CriticalSection_Enter(&sync->cs);
|
||||
sync->csWasEntered = True;
|
||||
}
|
||||
|
||||
BtGetMatches(p, p->btBuf + (globalBlockIndex & kMtBtNumBlocksMask) * kMtBtBlockSize);
|
||||
|
||||
if (p->pos > kMtMaxValForNormalize - kMtBtBlockSize)
|
||||
{
|
||||
UInt32 subValue = p->pos - p->cyclicBufferSize;
|
||||
MatchFinder_Normalize3(subValue, p->son, p->cyclicBufferSize * 2);
|
||||
p->pos -= subValue;
|
||||
}
|
||||
|
||||
if (!sync->needStart)
|
||||
{
|
||||
CriticalSection_Leave(&sync->cs);
|
||||
sync->csWasEntered = False;
|
||||
}
|
||||
}
|
||||
|
||||
void BtThreadFunc(CMatchFinderMt *mt)
|
||||
{
|
||||
CMtSync *p = &mt->btSync;
|
||||
for (;;)
|
||||
{
|
||||
UInt32 blockIndex = 0;
|
||||
Event_Wait(&p->canStart);
|
||||
Event_Set(&p->wasStarted);
|
||||
for (;;)
|
||||
{
|
||||
if (p->exit)
|
||||
return;
|
||||
if (p->stopWriting)
|
||||
{
|
||||
p->numProcessedBlocks = blockIndex;
|
||||
MtSync_StopWriting(&mt->hashSync);
|
||||
Event_Set(&p->wasStopped);
|
||||
break;
|
||||
}
|
||||
Semaphore_Wait(&p->freeSemaphore);
|
||||
BtFillBlock(mt, blockIndex++);
|
||||
Semaphore_Release1(&p->filledSemaphore);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void MatchFinderMt_Construct(CMatchFinderMt *p)
|
||||
{
|
||||
p->hashBuf = 0;
|
||||
MtSync_Construct(&p->hashSync);
|
||||
MtSync_Construct(&p->btSync);
|
||||
}
|
||||
|
||||
void MatchFinderMt_FreeMem(CMatchFinderMt *p, ISzAlloc *alloc)
|
||||
{
|
||||
alloc->Free(p->hashBuf);
|
||||
p->hashBuf = 0;
|
||||
}
|
||||
|
||||
void MatchFinderMt_Destruct(CMatchFinderMt *p, ISzAlloc *alloc)
|
||||
{
|
||||
MtSync_Destruct(&p->hashSync);
|
||||
MtSync_Destruct(&p->btSync);
|
||||
MatchFinderMt_FreeMem(p, alloc);
|
||||
}
|
||||
|
||||
#define kHashBufferSize (kMtHashBlockSize * kMtHashNumBlocks)
|
||||
#define kBtBufferSize (kMtBtBlockSize * kMtBtNumBlocks)
|
||||
|
||||
static unsigned StdCall HashThreadFunc2(void *p) { HashThreadFunc((CMatchFinderMt *)p); return 0; }
|
||||
static unsigned StdCall BtThreadFunc2(void *p)
|
||||
{
|
||||
#ifdef USE_ALLOCA
|
||||
alloca(0x180);
|
||||
#endif
|
||||
BtThreadFunc((CMatchFinderMt *)p);
|
||||
return 0;
|
||||
}
|
||||
|
||||
HRes MatchFinderMt_Create(CMatchFinderMt *p, UInt32 historySize, UInt32 keepAddBufferBefore,
|
||||
UInt32 matchMaxLen, UInt32 keepAddBufferAfter, ISzAlloc *alloc)
|
||||
{
|
||||
CMatchFinder *mf = p->MatchFinder;
|
||||
p->historySize = historySize;
|
||||
if (kMtBtBlockSize <= matchMaxLen * 4)
|
||||
return E_INVALIDARG;
|
||||
if (p->hashBuf == 0)
|
||||
{
|
||||
p->hashBuf = (UInt32 *)alloc->Alloc((kHashBufferSize + kBtBufferSize) * sizeof(UInt32));
|
||||
if (p->hashBuf == 0)
|
||||
return SZE_OUTOFMEMORY;
|
||||
p->btBuf = p->hashBuf + kHashBufferSize;
|
||||
}
|
||||
keepAddBufferBefore += (kHashBufferSize + kBtBufferSize);
|
||||
keepAddBufferAfter += kMtHashBlockSize;
|
||||
if (!MatchFinder_Create(mf, historySize, keepAddBufferBefore, matchMaxLen, keepAddBufferAfter, alloc))
|
||||
return SZE_OUTOFMEMORY;
|
||||
|
||||
RINOK(MtSync_Create(&p->hashSync, HashThreadFunc2, p, kMtHashNumBlocks));
|
||||
RINOK(MtSync_Create(&p->btSync, BtThreadFunc2, p, kMtBtNumBlocks));
|
||||
return SZ_OK;
|
||||
}
|
||||
|
||||
/* Call it after ReleaseStream / SetStream */
|
||||
void MatchFinderMt_Init(CMatchFinderMt *p)
|
||||
{
|
||||
CMatchFinder *mf = p->MatchFinder;
|
||||
p->btBufPos = p->btBufPosLimit = 0;
|
||||
p->hashBufPos = p->hashBufPosLimit = 0;
|
||||
MatchFinder_Init(mf);
|
||||
p->pointerToCurPos = MatchFinder_GetPointerToCurrentPos(mf);
|
||||
p->btNumAvailBytes = 0;
|
||||
p->lzPos = p->historySize + 1;
|
||||
|
||||
p->hash = mf->hash;
|
||||
p->fixedHashSize = mf->fixedHashSize;
|
||||
|
||||
p->son = mf->son;
|
||||
p->matchMaxLen = mf->matchMaxLen;
|
||||
p->numHashBytes = mf->numHashBytes;
|
||||
p->pos = mf->pos;
|
||||
p->buffer = mf->buffer;
|
||||
p->cyclicBufferPos = mf->cyclicBufferPos;
|
||||
p->cyclicBufferSize = mf->cyclicBufferSize;
|
||||
p->cutValue = mf->cutValue;
|
||||
}
|
||||
|
||||
/* ReleaseStream is required to finish multithreading */
|
||||
void MatchFinderMt_ReleaseStream(CMatchFinderMt *p)
|
||||
{
|
||||
MtSync_StopWriting(&p->btSync);
|
||||
/* p->MatchFinder->ReleaseStream(); */
|
||||
}
|
||||
|
||||
void MatchFinderMt_Normalize(CMatchFinderMt *p)
|
||||
{
|
||||
MatchFinder_Normalize3(p->lzPos - p->historySize - 1, p->hash, p->fixedHashSize);
|
||||
p->lzPos = p->historySize + 1;
|
||||
}
|
||||
|
||||
void MatchFinderMt_GetNextBlock_Bt(CMatchFinderMt *p)
|
||||
{
|
||||
UInt32 blockIndex;
|
||||
MtSync_GetNextBlock(&p->btSync);
|
||||
blockIndex = ((p->btSync.numProcessedBlocks - 1) & kMtBtNumBlocksMask);
|
||||
p->btBufPosLimit = p->btBufPos = blockIndex * kMtBtBlockSize;
|
||||
p->btBufPosLimit += p->btBuf[p->btBufPos++];
|
||||
p->btNumAvailBytes = p->btBuf[p->btBufPos++];
|
||||
if (p->lzPos >= kMtMaxValForNormalize - kMtBtBlockSize)
|
||||
MatchFinderMt_Normalize(p);
|
||||
}
|
||||
|
||||
const Byte * MatchFinderMt_GetPointerToCurrentPos(CMatchFinderMt *p)
|
||||
{
|
||||
return p->pointerToCurPos;
|
||||
}
|
||||
|
||||
#define GET_NEXT_BLOCK_IF_REQUIRED if (p->btBufPos == p->btBufPosLimit) MatchFinderMt_GetNextBlock_Bt(p);
|
||||
|
||||
UInt32 MatchFinderMt_GetNumAvailableBytes(CMatchFinderMt *p)
|
||||
{
|
||||
GET_NEXT_BLOCK_IF_REQUIRED;
|
||||
return p->btNumAvailBytes;
|
||||
}
|
||||
|
||||
Byte MatchFinderMt_GetIndexByte(CMatchFinderMt *p, Int32 index)
|
||||
{
|
||||
return p->pointerToCurPos[index];
|
||||
}
|
||||
|
||||
UInt32 * MixMatches2(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
|
||||
{
|
||||
UInt32 hash2Value, curMatch2;
|
||||
UInt32 *hash = p->hash;
|
||||
const Byte *cur = p->pointerToCurPos;
|
||||
UInt32 lzPos = p->lzPos;
|
||||
MT_HASH2_CALC
|
||||
|
||||
curMatch2 = hash[hash2Value];
|
||||
hash[hash2Value] = lzPos;
|
||||
|
||||
if (curMatch2 >= matchMinPos)
|
||||
if (cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
|
||||
{
|
||||
*distances++ = 2;
|
||||
*distances++ = lzPos - curMatch2 - 1;
|
||||
}
|
||||
return distances;
|
||||
}
|
||||
|
||||
UInt32 * MixMatches3(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
|
||||
{
|
||||
UInt32 hash2Value, hash3Value, curMatch2, curMatch3;
|
||||
UInt32 *hash = p->hash;
|
||||
const Byte *cur = p->pointerToCurPos;
|
||||
UInt32 lzPos = p->lzPos;
|
||||
MT_HASH3_CALC
|
||||
|
||||
curMatch2 = hash[ hash2Value];
|
||||
curMatch3 = hash[kFix3HashSize + hash3Value];
|
||||
|
||||
hash[ hash2Value] =
|
||||
hash[kFix3HashSize + hash3Value] =
|
||||
lzPos;
|
||||
|
||||
if (curMatch2 >= matchMinPos && cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
|
||||
{
|
||||
distances[1] = lzPos - curMatch2 - 1;
|
||||
if (cur[(ptrdiff_t)curMatch2 - lzPos + 2] == cur[2])
|
||||
{
|
||||
distances[0] = 3;
|
||||
return distances + 2;
|
||||
}
|
||||
distances[0] = 2;
|
||||
distances += 2;
|
||||
}
|
||||
if (curMatch3 >= matchMinPos && cur[(ptrdiff_t)curMatch3 - lzPos] == cur[0])
|
||||
{
|
||||
*distances++ = 3;
|
||||
*distances++ = lzPos - curMatch3 - 1;
|
||||
}
|
||||
return distances;
|
||||
}
|
||||
|
||||
/*
|
||||
UInt32 *MixMatches4(CMatchFinderMt *p, UInt32 matchMinPos, UInt32 *distances)
|
||||
{
|
||||
UInt32 hash2Value, hash3Value, hash4Value, curMatch2, curMatch3, curMatch4;
|
||||
UInt32 *hash = p->hash;
|
||||
const Byte *cur = p->pointerToCurPos;
|
||||
UInt32 lzPos = p->lzPos;
|
||||
MT_HASH4_CALC
|
||||
|
||||
curMatch2 = hash[ hash2Value];
|
||||
curMatch3 = hash[kFix3HashSize + hash3Value];
|
||||
curMatch4 = hash[kFix4HashSize + hash4Value];
|
||||
|
||||
hash[ hash2Value] =
|
||||
hash[kFix3HashSize + hash3Value] =
|
||||
hash[kFix4HashSize + hash4Value] =
|
||||
lzPos;
|
||||
|
||||
if (curMatch2 >= matchMinPos && cur[(ptrdiff_t)curMatch2 - lzPos] == cur[0])
|
||||
{
|
||||
distances[1] = lzPos - curMatch2 - 1;
|
||||
if (cur[(ptrdiff_t)curMatch2 - lzPos + 2] == cur[2])
|
||||
{
|
||||
distances[0] = (cur[(ptrdiff_t)curMatch2 - lzPos + 3] == cur[3]) ? 4 : 3;
|
||||
return distances + 2;
|
||||
}
|
||||
distances[0] = 2;
|
||||
distances += 2;
|
||||
}
|
||||
if (curMatch3 >= matchMinPos && cur[(ptrdiff_t)curMatch3 - lzPos] == cur[0])
|
||||
{
|
||||
distances[1] = lzPos - curMatch3 - 1;
|
||||
if (cur[(ptrdiff_t)curMatch3 - lzPos + 3] == cur[3])
|
||||
{
|
||||
distances[0] = 4;
|
||||
return distances + 2;
|
||||
}
|
||||
distances[0] = 3;
|
||||
distances += 2;
|
||||
}
|
||||
|
||||
if (curMatch4 >= matchMinPos)
|
||||
if (
|
||||
cur[(ptrdiff_t)curMatch4 - lzPos] == cur[0] &&
|
||||
cur[(ptrdiff_t)curMatch4 - lzPos + 3] == cur[3]
|
||||
)
|
||||
{
|
||||
*distances++ = 4;
|
||||
*distances++ = lzPos - curMatch4 - 1;
|
||||
}
|
||||
return distances;
|
||||
}
|
||||
*/
|
||||
|
||||
#define INCREASE_LZ_POS p->lzPos++; p->pointerToCurPos++;
|
||||
|
||||
UInt32 MatchFinderMt2_GetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
{
|
||||
const UInt32 *btBuf = p->btBuf + p->btBufPos;
|
||||
UInt32 len = *btBuf++;
|
||||
p->btBufPos += 1 + len;
|
||||
p->btNumAvailBytes--;
|
||||
{
|
||||
UInt32 i;
|
||||
for (i = 0; i < len; i += 2)
|
||||
{
|
||||
*distances++ = *btBuf++;
|
||||
*distances++ = *btBuf++;
|
||||
}
|
||||
}
|
||||
INCREASE_LZ_POS
|
||||
return len;
|
||||
}
|
||||
|
||||
UInt32 MatchFinderMt_GetMatches(CMatchFinderMt *p, UInt32 *distances)
|
||||
{
|
||||
const UInt32 *btBuf = p->btBuf + p->btBufPos;
|
||||
UInt32 len = *btBuf++;
|
||||
p->btBufPos += 1 + len;
|
||||
|
||||
if (len == 0)
|
||||
{
|
||||
if (p->btNumAvailBytes-- >= 4)
|
||||
len = (UInt32)(p->MixMatchesFunc(p, p->lzPos - p->historySize, distances) - (distances));
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Condition: there are matches in btBuf with length < p->numHashBytes */
|
||||
UInt32 *distances2;
|
||||
p->btNumAvailBytes--;
|
||||
distances2 = p->MixMatchesFunc(p, p->lzPos - btBuf[1], distances);
|
||||
do
|
||||
{
|
||||
*distances2++ = *btBuf++;
|
||||
*distances2++ = *btBuf++;
|
||||
}
|
||||
while ((len -= 2) != 0);
|
||||
len = (UInt32)(distances2 - (distances));
|
||||
}
|
||||
INCREASE_LZ_POS
|
||||
return len;
|
||||
}
|
||||
|
||||
#define SKIP_HEADER2 do { GET_NEXT_BLOCK_IF_REQUIRED
|
||||
#define SKIP_HEADER(n) SKIP_HEADER2 if (p->btNumAvailBytes-- >= (n)) { const Byte *cur = p->pointerToCurPos; UInt32 *hash = p->hash;
|
||||
#define SKIP_FOOTER } INCREASE_LZ_POS p->btBufPos += p->btBuf[p->btBufPos] + 1; } while(--num != 0);
|
||||
|
||||
void MatchFinderMt0_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
{
|
||||
SKIP_HEADER2 { p->btNumAvailBytes--;
|
||||
SKIP_FOOTER
|
||||
}
|
||||
|
||||
void MatchFinderMt2_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
{
|
||||
SKIP_HEADER(2)
|
||||
UInt32 hash2Value;
|
||||
MT_HASH2_CALC
|
||||
hash[hash2Value] = p->lzPos;
|
||||
SKIP_FOOTER
|
||||
}
|
||||
|
||||
void MatchFinderMt3_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
{
|
||||
SKIP_HEADER(3)
|
||||
UInt32 hash2Value, hash3Value;
|
||||
MT_HASH3_CALC
|
||||
hash[kFix3HashSize + hash3Value] =
|
||||
hash[ hash2Value] =
|
||||
p->lzPos;
|
||||
SKIP_FOOTER
|
||||
}
|
||||
|
||||
/*
|
||||
void MatchFinderMt4_Skip(CMatchFinderMt *p, UInt32 num)
|
||||
{
|
||||
SKIP_HEADER(4)
|
||||
UInt32 hash2Value, hash3Value, hash4Value;
|
||||
MT_HASH4_CALC
|
||||
hash[kFix4HashSize + hash4Value] =
|
||||
hash[kFix3HashSize + hash3Value] =
|
||||
hash[ hash2Value] =
|
||||
p->lzPos;
|
||||
SKIP_FOOTER
|
||||
}
|
||||
*/
|
||||
|
||||
void MatchFinderMt_CreateVTable(CMatchFinderMt *p, IMatchFinder *vTable)
|
||||
{
|
||||
vTable->Init = (Mf_Init_Func)MatchFinderMt_Init;
|
||||
vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinderMt_GetIndexByte;
|
||||
vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinderMt_GetNumAvailableBytes;
|
||||
vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinderMt_GetPointerToCurrentPos;
|
||||
vTable->GetMatches = (Mf_GetMatches_Func)MatchFinderMt_GetMatches;
|
||||
switch(p->MatchFinder->numHashBytes)
|
||||
{
|
||||
case 2:
|
||||
p->GetHeadsFunc = GetHeads2;
|
||||
p->MixMatchesFunc = (Mf_Mix_Matches)0;
|
||||
vTable->Skip = (Mf_Skip_Func)MatchFinderMt0_Skip;
|
||||
vTable->GetMatches = (Mf_GetMatches_Func)MatchFinderMt2_GetMatches;
|
||||
break;
|
||||
case 3:
|
||||
p->GetHeadsFunc = GetHeads3;
|
||||
p->MixMatchesFunc = (Mf_Mix_Matches)MixMatches2;
|
||||
vTable->Skip = (Mf_Skip_Func)MatchFinderMt2_Skip;
|
||||
break;
|
||||
default:
|
||||
/* case 4: */
|
||||
p->GetHeadsFunc = p->MatchFinder->bigHash ? GetHeads4b : GetHeads4;
|
||||
/* p->GetHeadsFunc = GetHeads4; */
|
||||
p->MixMatchesFunc = (Mf_Mix_Matches)MixMatches3;
|
||||
vTable->Skip = (Mf_Skip_Func)MatchFinderMt3_Skip;
|
||||
break;
|
||||
/*
|
||||
default:
|
||||
p->GetHeadsFunc = GetHeads5;
|
||||
p->MixMatchesFunc = (Mf_Mix_Matches)MixMatches4;
|
||||
vTable->Skip = (Mf_Skip_Func)MatchFinderMt4_Skip;
|
||||
break;
|
||||
*/
|
||||
}
|
||||
}
|
95
lib/physfs-2.0.3/lzma/C/Compress/Lz/MatchFinderMt.h
Normal file
95
lib/physfs-2.0.3/lzma/C/Compress/Lz/MatchFinderMt.h
Normal file
|
@ -0,0 +1,95 @@
|
|||
/* MatchFinderMt.h */
|
||||
|
||||
#ifndef __MATCHFINDERMT_H
|
||||
#define __MATCHFINDERMT_H
|
||||
|
||||
#include "../../Threads.h"
|
||||
#include "MatchFinder.h"
|
||||
|
||||
#define kMtHashBlockSize (1 << 13)
|
||||
#define kMtHashNumBlocks (1 << 3)
|
||||
#define kMtHashNumBlocksMask (kMtHashNumBlocks - 1)
|
||||
|
||||
#define kMtBtBlockSize (1 << 14)
|
||||
#define kMtBtNumBlocks (1 << 6)
|
||||
#define kMtBtNumBlocksMask (kMtBtNumBlocks - 1)
|
||||
|
||||
typedef struct _CMtSync
|
||||
{
|
||||
Bool wasCreated;
|
||||
Bool needStart;
|
||||
Bool exit;
|
||||
Bool stopWriting;
|
||||
|
||||
CThread thread;
|
||||
CAutoResetEvent canStart;
|
||||
CAutoResetEvent wasStarted;
|
||||
CAutoResetEvent wasStopped;
|
||||
CSemaphore freeSemaphore;
|
||||
CSemaphore filledSemaphore;
|
||||
Bool csWasInitialized;
|
||||
Bool csWasEntered;
|
||||
CCriticalSection cs;
|
||||
UInt32 numProcessedBlocks;
|
||||
} CMtSync;
|
||||
|
||||
typedef UInt32 * (*Mf_Mix_Matches)(void *p, UInt32 matchMinPos, UInt32 *distances);
|
||||
|
||||
/* kMtCacheLineDummy must be >= size_of_CPU_cache_line */
|
||||
#define kMtCacheLineDummy 128
|
||||
|
||||
typedef void (*Mf_GetHeads)(const Byte *buffer, UInt32 pos,
|
||||
UInt32 *hash, UInt32 hashMask, UInt32 *heads, UInt32 numHeads);
|
||||
|
||||
typedef struct _CMatchFinderMt
|
||||
{
|
||||
/* LZ */
|
||||
const Byte *pointerToCurPos;
|
||||
UInt32 *btBuf;
|
||||
UInt32 btBufPos;
|
||||
UInt32 btBufPosLimit;
|
||||
UInt32 lzPos;
|
||||
UInt32 btNumAvailBytes;
|
||||
|
||||
UInt32 *hash;
|
||||
UInt32 fixedHashSize;
|
||||
UInt32 historySize;
|
||||
|
||||
Mf_Mix_Matches MixMatchesFunc;
|
||||
|
||||
/* LZ + BT */
|
||||
CMtSync btSync;
|
||||
Byte btDummy[kMtCacheLineDummy];
|
||||
|
||||
/* BT */
|
||||
UInt32 *hashBuf;
|
||||
UInt32 hashBufPos;
|
||||
UInt32 hashBufPosLimit;
|
||||
UInt32 hashNumAvail;
|
||||
|
||||
CLzRef *son;
|
||||
UInt32 matchMaxLen;
|
||||
UInt32 numHashBytes;
|
||||
UInt32 pos;
|
||||
Byte *buffer;
|
||||
UInt32 cyclicBufferPos;
|
||||
UInt32 cyclicBufferSize; /* it must be historySize + 1 */
|
||||
UInt32 cutValue;
|
||||
|
||||
/* BT + Hash */
|
||||
CMtSync hashSync;
|
||||
/* Byte hashDummy[kMtCacheLineDummy]; */
|
||||
|
||||
/* Hash */
|
||||
Mf_GetHeads GetHeadsFunc;
|
||||
CMatchFinder *MatchFinder;
|
||||
} CMatchFinderMt;
|
||||
|
||||
void MatchFinderMt_Construct(CMatchFinderMt *p);
|
||||
void MatchFinderMt_Destruct(CMatchFinderMt *p, ISzAlloc *alloc);
|
||||
HRes MatchFinderMt_Create(CMatchFinderMt *p, UInt32 historySize, UInt32 keepAddBufferBefore,
|
||||
UInt32 matchMaxLen, UInt32 keepAddBufferAfter, ISzAlloc *alloc);
|
||||
void MatchFinderMt_CreateVTable(CMatchFinderMt *p, IMatchFinder *vTable);
|
||||
void MatchFinderMt_ReleaseStream(CMatchFinderMt *p);
|
||||
|
||||
#endif
|
584
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaDecode.c
Normal file
584
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaDecode.c
Normal file
|
@ -0,0 +1,584 @@
|
|||
/*
|
||||
LzmaDecode.c
|
||||
LZMA Decoder (optimized for Speed version)
|
||||
|
||||
LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
|
||||
http://www.7-zip.org/
|
||||
|
||||
LZMA SDK is licensed under two licenses:
|
||||
1) GNU Lesser General Public License (GNU LGPL)
|
||||
2) Common Public License (CPL)
|
||||
It means that you can select one of these two licenses and
|
||||
follow rules of that license.
|
||||
|
||||
SPECIAL EXCEPTION:
|
||||
Igor Pavlov, as the author of this Code, expressly permits you to
|
||||
statically or dynamically link your Code (or bind by name) to the
|
||||
interfaces of this file without subjecting your linked Code to the
|
||||
terms of the CPL or GNU LGPL. Any modifications or additions
|
||||
to this file, however, are subject to the LGPL or CPL terms.
|
||||
*/
|
||||
|
||||
#include "LzmaDecode.h"
|
||||
|
||||
#define kNumTopBits 24
|
||||
#define kTopValue ((UInt32)1 << kNumTopBits)
|
||||
|
||||
#define kNumBitModelTotalBits 11
|
||||
#define kBitModelTotal (1 << kNumBitModelTotalBits)
|
||||
#define kNumMoveBits 5
|
||||
|
||||
#define RC_READ_BYTE (*Buffer++)
|
||||
|
||||
#define RC_INIT2 Code = 0; Range = 0xFFFFFFFF; \
|
||||
{ int i; for(i = 0; i < 5; i++) { RC_TEST; Code = (Code << 8) | RC_READ_BYTE; }}
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
|
||||
#define RC_TEST { if (Buffer == BufferLim) \
|
||||
{ SizeT size; int result = InCallback->Read(InCallback, &Buffer, &size); if (result != LZMA_RESULT_OK) return result; \
|
||||
BufferLim = Buffer + size; if (size == 0) return LZMA_RESULT_DATA_ERROR; }}
|
||||
|
||||
#define RC_INIT Buffer = BufferLim = 0; RC_INIT2
|
||||
|
||||
#else
|
||||
|
||||
#define RC_TEST { if (Buffer == BufferLim) return LZMA_RESULT_DATA_ERROR; }
|
||||
|
||||
#define RC_INIT(buffer, bufferSize) Buffer = buffer; BufferLim = buffer + bufferSize; RC_INIT2
|
||||
|
||||
#endif
|
||||
|
||||
#define RC_NORMALIZE if (Range < kTopValue) { RC_TEST; Range <<= 8; Code = (Code << 8) | RC_READ_BYTE; }
|
||||
|
||||
#define IfBit0(p) RC_NORMALIZE; bound = (Range >> kNumBitModelTotalBits) * *(p); if (Code < bound)
|
||||
#define UpdateBit0(p) Range = bound; *(p) += (kBitModelTotal - *(p)) >> kNumMoveBits;
|
||||
#define UpdateBit1(p) Range -= bound; Code -= bound; *(p) -= (*(p)) >> kNumMoveBits;
|
||||
|
||||
#define RC_GET_BIT2(p, mi, A0, A1) IfBit0(p) \
|
||||
{ UpdateBit0(p); mi <<= 1; A0; } else \
|
||||
{ UpdateBit1(p); mi = (mi + mi) + 1; A1; }
|
||||
|
||||
#define RC_GET_BIT(p, mi) RC_GET_BIT2(p, mi, ; , ;)
|
||||
|
||||
#define RangeDecoderBitTreeDecode(probs, numLevels, res) \
|
||||
{ int i = numLevels; res = 1; \
|
||||
do { CProb *p = probs + res; RC_GET_BIT(p, res) } while(--i != 0); \
|
||||
res -= (1 << numLevels); }
|
||||
|
||||
|
||||
#define kNumPosBitsMax 4
|
||||
#define kNumPosStatesMax (1 << kNumPosBitsMax)
|
||||
|
||||
#define kLenNumLowBits 3
|
||||
#define kLenNumLowSymbols (1 << kLenNumLowBits)
|
||||
#define kLenNumMidBits 3
|
||||
#define kLenNumMidSymbols (1 << kLenNumMidBits)
|
||||
#define kLenNumHighBits 8
|
||||
#define kLenNumHighSymbols (1 << kLenNumHighBits)
|
||||
|
||||
#define LenChoice 0
|
||||
#define LenChoice2 (LenChoice + 1)
|
||||
#define LenLow (LenChoice2 + 1)
|
||||
#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
|
||||
#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
|
||||
#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
|
||||
|
||||
|
||||
#define kNumStates 12
|
||||
#define kNumLitStates 7
|
||||
|
||||
#define kStartPosModelIndex 4
|
||||
#define kEndPosModelIndex 14
|
||||
#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
|
||||
|
||||
#define kNumPosSlotBits 6
|
||||
#define kNumLenToPosStates 4
|
||||
|
||||
#define kNumAlignBits 4
|
||||
#define kAlignTableSize (1 << kNumAlignBits)
|
||||
|
||||
#define kMatchMinLen 2
|
||||
|
||||
#define IsMatch 0
|
||||
#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
|
||||
#define IsRepG0 (IsRep + kNumStates)
|
||||
#define IsRepG1 (IsRepG0 + kNumStates)
|
||||
#define IsRepG2 (IsRepG1 + kNumStates)
|
||||
#define IsRep0Long (IsRepG2 + kNumStates)
|
||||
#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
|
||||
#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
|
||||
#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
|
||||
#define LenCoder (Align + kAlignTableSize)
|
||||
#define RepLenCoder (LenCoder + kNumLenProbs)
|
||||
#define Literal (RepLenCoder + kNumLenProbs)
|
||||
|
||||
#if Literal != LZMA_BASE_SIZE
|
||||
StopCompilingDueBUG
|
||||
#endif
|
||||
|
||||
int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size)
|
||||
{
|
||||
unsigned char prop0;
|
||||
if (size < LZMA_PROPERTIES_SIZE)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
prop0 = propsData[0];
|
||||
if (prop0 >= (9 * 5 * 5))
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
{
|
||||
for (propsRes->pb = 0; prop0 >= (9 * 5); propsRes->pb++, prop0 -= (9 * 5));
|
||||
for (propsRes->lp = 0; prop0 >= 9; propsRes->lp++, prop0 -= 9);
|
||||
propsRes->lc = prop0;
|
||||
/*
|
||||
unsigned char remainder = (unsigned char)(prop0 / 9);
|
||||
propsRes->lc = prop0 % 9;
|
||||
propsRes->pb = remainder / 5;
|
||||
propsRes->lp = remainder % 5;
|
||||
*/
|
||||
}
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
{
|
||||
int i;
|
||||
propsRes->DictionarySize = 0;
|
||||
for (i = 0; i < 4; i++)
|
||||
propsRes->DictionarySize += (UInt32)(propsData[1 + i]) << (i * 8);
|
||||
if (propsRes->DictionarySize == 0)
|
||||
propsRes->DictionarySize = 1;
|
||||
}
|
||||
#endif
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
||||
|
||||
#define kLzmaStreamWasFinishedId (-1)
|
||||
|
||||
int LzmaDecode(CLzmaDecoderState *vs,
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *InCallback,
|
||||
#else
|
||||
const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
|
||||
#endif
|
||||
unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed)
|
||||
{
|
||||
CProb *p = vs->Probs;
|
||||
SizeT nowPos = 0;
|
||||
Byte previousByte = 0;
|
||||
UInt32 posStateMask = (1 << (vs->Properties.pb)) - 1;
|
||||
UInt32 literalPosMask = (1 << (vs->Properties.lp)) - 1;
|
||||
int lc = vs->Properties.lc;
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
|
||||
UInt32 Range = vs->Range;
|
||||
UInt32 Code = vs->Code;
|
||||
#ifdef _LZMA_IN_CB
|
||||
const Byte *Buffer = vs->Buffer;
|
||||
const Byte *BufferLim = vs->BufferLim;
|
||||
#else
|
||||
const Byte *Buffer = inStream;
|
||||
const Byte *BufferLim = inStream + inSize;
|
||||
#endif
|
||||
int state = vs->State;
|
||||
UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3];
|
||||
int len = vs->RemainLen;
|
||||
UInt32 globalPos = vs->GlobalPos;
|
||||
UInt32 distanceLimit = vs->DistanceLimit;
|
||||
|
||||
Byte *dictionary = vs->Dictionary;
|
||||
UInt32 dictionarySize = vs->Properties.DictionarySize;
|
||||
UInt32 dictionaryPos = vs->DictionaryPos;
|
||||
|
||||
Byte tempDictionary[4];
|
||||
|
||||
#ifndef _LZMA_IN_CB
|
||||
*inSizeProcessed = 0;
|
||||
#endif
|
||||
*outSizeProcessed = 0;
|
||||
if (len == kLzmaStreamWasFinishedId)
|
||||
return LZMA_RESULT_OK;
|
||||
|
||||
if (dictionarySize == 0)
|
||||
{
|
||||
dictionary = tempDictionary;
|
||||
dictionarySize = 1;
|
||||
tempDictionary[0] = vs->TempDictionary[0];
|
||||
}
|
||||
|
||||
if (len == kLzmaNeedInitId)
|
||||
{
|
||||
{
|
||||
UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));
|
||||
UInt32 i;
|
||||
for (i = 0; i < numProbs; i++)
|
||||
p[i] = kBitModelTotal >> 1;
|
||||
rep0 = rep1 = rep2 = rep3 = 1;
|
||||
state = 0;
|
||||
globalPos = 0;
|
||||
distanceLimit = 0;
|
||||
dictionaryPos = 0;
|
||||
dictionary[dictionarySize - 1] = 0;
|
||||
#ifdef _LZMA_IN_CB
|
||||
RC_INIT;
|
||||
#else
|
||||
RC_INIT(inStream, inSize);
|
||||
#endif
|
||||
}
|
||||
len = 0;
|
||||
}
|
||||
while(len != 0 && nowPos < outSize)
|
||||
{
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos];
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
len--;
|
||||
}
|
||||
if (dictionaryPos == 0)
|
||||
previousByte = dictionary[dictionarySize - 1];
|
||||
else
|
||||
previousByte = dictionary[dictionaryPos - 1];
|
||||
|
||||
#else /* if !_LZMA_OUT_READ */
|
||||
|
||||
int state = 0;
|
||||
UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1;
|
||||
int len = 0;
|
||||
const Byte *Buffer;
|
||||
const Byte *BufferLim;
|
||||
UInt32 Range;
|
||||
UInt32 Code;
|
||||
|
||||
#ifndef _LZMA_IN_CB
|
||||
*inSizeProcessed = 0;
|
||||
#endif
|
||||
*outSizeProcessed = 0;
|
||||
|
||||
{
|
||||
UInt32 i;
|
||||
UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));
|
||||
for (i = 0; i < numProbs; i++)
|
||||
p[i] = kBitModelTotal >> 1;
|
||||
}
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
RC_INIT;
|
||||
#else
|
||||
RC_INIT(inStream, inSize);
|
||||
#endif
|
||||
|
||||
#endif /* _LZMA_OUT_READ */
|
||||
|
||||
while(nowPos < outSize)
|
||||
{
|
||||
CProb *prob;
|
||||
UInt32 bound;
|
||||
int posState = (int)(
|
||||
(nowPos
|
||||
#ifdef _LZMA_OUT_READ
|
||||
+ globalPos
|
||||
#endif
|
||||
)
|
||||
& posStateMask);
|
||||
|
||||
prob = p + IsMatch + (state << kNumPosBitsMax) + posState;
|
||||
IfBit0(prob)
|
||||
{
|
||||
int symbol = 1;
|
||||
UpdateBit0(prob)
|
||||
prob = p + Literal + (LZMA_LIT_SIZE *
|
||||
(((
|
||||
(nowPos
|
||||
#ifdef _LZMA_OUT_READ
|
||||
+ globalPos
|
||||
#endif
|
||||
)
|
||||
& literalPosMask) << lc) + (previousByte >> (8 - lc))));
|
||||
|
||||
if (state >= kNumLitStates)
|
||||
{
|
||||
int matchByte;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
matchByte = dictionary[pos];
|
||||
#else
|
||||
matchByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
do
|
||||
{
|
||||
int bit;
|
||||
CProb *probLit;
|
||||
matchByte <<= 1;
|
||||
bit = (matchByte & 0x100);
|
||||
probLit = prob + 0x100 + bit + symbol;
|
||||
RC_GET_BIT2(probLit, symbol, if (bit != 0) break, if (bit == 0) break)
|
||||
}
|
||||
while (symbol < 0x100);
|
||||
}
|
||||
while (symbol < 0x100)
|
||||
{
|
||||
CProb *probLit = prob + symbol;
|
||||
RC_GET_BIT(probLit, symbol)
|
||||
}
|
||||
previousByte = (Byte)symbol;
|
||||
|
||||
outStream[nowPos++] = previousByte;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (distanceLimit < dictionarySize)
|
||||
distanceLimit++;
|
||||
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#endif
|
||||
if (state < 4) state = 0;
|
||||
else if (state < 10) state -= 3;
|
||||
else state -= 6;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
prob = p + IsRep + state;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob);
|
||||
rep3 = rep2;
|
||||
rep2 = rep1;
|
||||
rep1 = rep0;
|
||||
state = state < kNumLitStates ? 0 : 3;
|
||||
prob = p + LenCoder;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
prob = p + IsRepG0 + state;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob);
|
||||
prob = p + IsRep0Long + (state << kNumPosBitsMax) + posState;
|
||||
IfBit0(prob)
|
||||
{
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos;
|
||||
#endif
|
||||
UpdateBit0(prob);
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (distanceLimit == 0)
|
||||
#else
|
||||
if (nowPos == 0)
|
||||
#endif
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
|
||||
state = state < kNumLitStates ? 9 : 11;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
previousByte = dictionary[pos];
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#else
|
||||
previousByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
outStream[nowPos++] = previousByte;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (distanceLimit < dictionarySize)
|
||||
distanceLimit++;
|
||||
#endif
|
||||
|
||||
continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
UInt32 distance;
|
||||
UpdateBit1(prob);
|
||||
prob = p + IsRepG1 + state;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob);
|
||||
distance = rep1;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
prob = p + IsRepG2 + state;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob);
|
||||
distance = rep2;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
distance = rep3;
|
||||
rep3 = rep2;
|
||||
}
|
||||
rep2 = rep1;
|
||||
}
|
||||
rep1 = rep0;
|
||||
rep0 = distance;
|
||||
}
|
||||
state = state < kNumLitStates ? 8 : 11;
|
||||
prob = p + RepLenCoder;
|
||||
}
|
||||
{
|
||||
int numBits, offset;
|
||||
CProb *probLen = prob + LenChoice;
|
||||
IfBit0(probLen)
|
||||
{
|
||||
UpdateBit0(probLen);
|
||||
probLen = prob + LenLow + (posState << kLenNumLowBits);
|
||||
offset = 0;
|
||||
numBits = kLenNumLowBits;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(probLen);
|
||||
probLen = prob + LenChoice2;
|
||||
IfBit0(probLen)
|
||||
{
|
||||
UpdateBit0(probLen);
|
||||
probLen = prob + LenMid + (posState << kLenNumMidBits);
|
||||
offset = kLenNumLowSymbols;
|
||||
numBits = kLenNumMidBits;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(probLen);
|
||||
probLen = prob + LenHigh;
|
||||
offset = kLenNumLowSymbols + kLenNumMidSymbols;
|
||||
numBits = kLenNumHighBits;
|
||||
}
|
||||
}
|
||||
RangeDecoderBitTreeDecode(probLen, numBits, len);
|
||||
len += offset;
|
||||
}
|
||||
|
||||
if (state < 4)
|
||||
{
|
||||
int posSlot;
|
||||
state += kNumLitStates;
|
||||
prob = p + PosSlot +
|
||||
((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
|
||||
kNumPosSlotBits);
|
||||
RangeDecoderBitTreeDecode(prob, kNumPosSlotBits, posSlot);
|
||||
if (posSlot >= kStartPosModelIndex)
|
||||
{
|
||||
int numDirectBits = ((posSlot >> 1) - 1);
|
||||
rep0 = (2 | ((UInt32)posSlot & 1));
|
||||
if (posSlot < kEndPosModelIndex)
|
||||
{
|
||||
rep0 <<= numDirectBits;
|
||||
prob = p + SpecPos + rep0 - posSlot - 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
numDirectBits -= kNumAlignBits;
|
||||
do
|
||||
{
|
||||
RC_NORMALIZE
|
||||
Range >>= 1;
|
||||
rep0 <<= 1;
|
||||
if (Code >= Range)
|
||||
{
|
||||
Code -= Range;
|
||||
rep0 |= 1;
|
||||
}
|
||||
}
|
||||
while (--numDirectBits != 0);
|
||||
prob = p + Align;
|
||||
rep0 <<= kNumAlignBits;
|
||||
numDirectBits = kNumAlignBits;
|
||||
}
|
||||
{
|
||||
int i = 1;
|
||||
int mi = 1;
|
||||
do
|
||||
{
|
||||
CProb *prob3 = prob + mi;
|
||||
RC_GET_BIT2(prob3, mi, ; , rep0 |= i);
|
||||
i <<= 1;
|
||||
}
|
||||
while(--numDirectBits != 0);
|
||||
}
|
||||
}
|
||||
else
|
||||
rep0 = posSlot;
|
||||
if (++rep0 == (UInt32)(0))
|
||||
{
|
||||
/* it's for stream version */
|
||||
len = kLzmaStreamWasFinishedId;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
len += kMatchMinLen;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (rep0 > distanceLimit)
|
||||
#else
|
||||
if (rep0 > nowPos)
|
||||
#endif
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (dictionarySize - distanceLimit > (UInt32)len)
|
||||
distanceLimit += len;
|
||||
else
|
||||
distanceLimit = dictionarySize;
|
||||
#endif
|
||||
|
||||
do
|
||||
{
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
previousByte = dictionary[pos];
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#else
|
||||
previousByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
len--;
|
||||
outStream[nowPos++] = previousByte;
|
||||
}
|
||||
while(len != 0 && nowPos < outSize);
|
||||
}
|
||||
}
|
||||
RC_NORMALIZE;
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
vs->Range = Range;
|
||||
vs->Code = Code;
|
||||
vs->DictionaryPos = dictionaryPos;
|
||||
vs->GlobalPos = globalPos + (UInt32)nowPos;
|
||||
vs->DistanceLimit = distanceLimit;
|
||||
vs->Reps[0] = rep0;
|
||||
vs->Reps[1] = rep1;
|
||||
vs->Reps[2] = rep2;
|
||||
vs->Reps[3] = rep3;
|
||||
vs->State = state;
|
||||
vs->RemainLen = len;
|
||||
vs->TempDictionary[0] = tempDictionary[0];
|
||||
#endif
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
vs->Buffer = Buffer;
|
||||
vs->BufferLim = BufferLim;
|
||||
#else
|
||||
*inSizeProcessed = (SizeT)(Buffer - inStream);
|
||||
#endif
|
||||
*outSizeProcessed = nowPos;
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
113
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaDecode.h
Normal file
113
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaDecode.h
Normal file
|
@ -0,0 +1,113 @@
|
|||
/*
|
||||
LzmaDecode.h
|
||||
LZMA Decoder interface
|
||||
|
||||
LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
|
||||
http://www.7-zip.org/
|
||||
|
||||
LZMA SDK is licensed under two licenses:
|
||||
1) GNU Lesser General Public License (GNU LGPL)
|
||||
2) Common Public License (CPL)
|
||||
It means that you can select one of these two licenses and
|
||||
follow rules of that license.
|
||||
|
||||
SPECIAL EXCEPTION:
|
||||
Igor Pavlov, as the author of this code, expressly permits you to
|
||||
statically or dynamically link your code (or bind by name) to the
|
||||
interfaces of this file without subjecting your linked code to the
|
||||
terms of the CPL or GNU LGPL. Any modifications or additions
|
||||
to this file, however, are subject to the LGPL or CPL terms.
|
||||
*/
|
||||
|
||||
#ifndef __LZMADECODE_H
|
||||
#define __LZMADECODE_H
|
||||
|
||||
#include "LzmaTypes.h"
|
||||
|
||||
/* #define _LZMA_IN_CB */
|
||||
/* Use callback for input data */
|
||||
|
||||
/* #define _LZMA_OUT_READ */
|
||||
/* Use read function for output data */
|
||||
|
||||
/* #define _LZMA_PROB32 */
|
||||
/* It can increase speed on some 32-bit CPUs,
|
||||
but memory usage will be doubled in that case */
|
||||
|
||||
/* #define _LZMA_LOC_OPT */
|
||||
/* Enable local speed optimizations inside code */
|
||||
|
||||
#ifdef _LZMA_PROB32
|
||||
#define CProb UInt32
|
||||
#else
|
||||
#define CProb UInt16
|
||||
#endif
|
||||
|
||||
#define LZMA_RESULT_OK 0
|
||||
#define LZMA_RESULT_DATA_ERROR 1
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
typedef struct _ILzmaInCallback
|
||||
{
|
||||
int (*Read)(void *object, const unsigned char **buffer, SizeT *bufferSize);
|
||||
} ILzmaInCallback;
|
||||
#endif
|
||||
|
||||
#define LZMA_BASE_SIZE 1846
|
||||
#define LZMA_LIT_SIZE 768
|
||||
|
||||
#define LZMA_PROPERTIES_SIZE 5
|
||||
|
||||
typedef struct _CLzmaProperties
|
||||
{
|
||||
int lc;
|
||||
int lp;
|
||||
int pb;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 DictionarySize;
|
||||
#endif
|
||||
}CLzmaProperties;
|
||||
|
||||
int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size);
|
||||
|
||||
#define LzmaGetNumProbs(Properties) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp)))
|
||||
|
||||
#define kLzmaNeedInitId (-2)
|
||||
|
||||
typedef struct _CLzmaDecoderState
|
||||
{
|
||||
CLzmaProperties Properties;
|
||||
CProb *Probs;
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
const unsigned char *Buffer;
|
||||
const unsigned char *BufferLim;
|
||||
#endif
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
unsigned char *Dictionary;
|
||||
UInt32 Range;
|
||||
UInt32 Code;
|
||||
UInt32 DictionaryPos;
|
||||
UInt32 GlobalPos;
|
||||
UInt32 DistanceLimit;
|
||||
UInt32 Reps[4];
|
||||
int State;
|
||||
int RemainLen;
|
||||
unsigned char TempDictionary[4];
|
||||
#endif
|
||||
} CLzmaDecoderState;
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
#define LzmaDecoderInit(vs) { (vs)->RemainLen = kLzmaNeedInitId; }
|
||||
#endif
|
||||
|
||||
int LzmaDecode(CLzmaDecoderState *vs,
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *inCallback,
|
||||
#else
|
||||
const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
|
||||
#endif
|
||||
unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed);
|
||||
|
||||
#endif
|
712
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaDecodeSize.c
Normal file
712
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaDecodeSize.c
Normal file
|
@ -0,0 +1,712 @@
|
|||
/*
|
||||
LzmaDecodeSize.c
|
||||
LZMA Decoder (optimized for Size version)
|
||||
|
||||
LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
|
||||
http://www.7-zip.org/
|
||||
|
||||
LZMA SDK is licensed under two licenses:
|
||||
1) GNU Lesser General Public License (GNU LGPL)
|
||||
2) Common Public License (CPL)
|
||||
It means that you can select one of these two licenses and
|
||||
follow rules of that license.
|
||||
|
||||
SPECIAL EXCEPTION:
|
||||
Igor Pavlov, as the author of this code, expressly permits you to
|
||||
statically or dynamically link your code (or bind by name) to the
|
||||
interfaces of this file without subjecting your linked code to the
|
||||
terms of the CPL or GNU LGPL. Any modifications or additions
|
||||
to this file, however, are subject to the LGPL or CPL terms.
|
||||
*/
|
||||
|
||||
#include "LzmaDecode.h"
|
||||
|
||||
#define kNumTopBits 24
|
||||
#define kTopValue ((UInt32)1 << kNumTopBits)
|
||||
|
||||
#define kNumBitModelTotalBits 11
|
||||
#define kBitModelTotal (1 << kNumBitModelTotalBits)
|
||||
#define kNumMoveBits 5
|
||||
|
||||
typedef struct _CRangeDecoder
|
||||
{
|
||||
const Byte *Buffer;
|
||||
const Byte *BufferLim;
|
||||
UInt32 Range;
|
||||
UInt32 Code;
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *InCallback;
|
||||
int Result;
|
||||
#endif
|
||||
int ExtraBytes;
|
||||
} CRangeDecoder;
|
||||
|
||||
Byte RangeDecoderReadByte(CRangeDecoder *rd)
|
||||
{
|
||||
if (rd->Buffer == rd->BufferLim)
|
||||
{
|
||||
#ifdef _LZMA_IN_CB
|
||||
SizeT size;
|
||||
rd->Result = rd->InCallback->Read(rd->InCallback, &rd->Buffer, &size);
|
||||
rd->BufferLim = rd->Buffer + size;
|
||||
if (size == 0)
|
||||
#endif
|
||||
{
|
||||
rd->ExtraBytes = 1;
|
||||
return 0xFF;
|
||||
}
|
||||
}
|
||||
return (*rd->Buffer++);
|
||||
}
|
||||
|
||||
/* #define ReadByte (*rd->Buffer++) */
|
||||
#define ReadByte (RangeDecoderReadByte(rd))
|
||||
|
||||
void RangeDecoderInit(CRangeDecoder *rd
|
||||
#ifndef _LZMA_IN_CB
|
||||
, const Byte *stream, SizeT bufferSize
|
||||
#endif
|
||||
)
|
||||
{
|
||||
int i;
|
||||
#ifdef _LZMA_IN_CB
|
||||
rd->Buffer = rd->BufferLim = 0;
|
||||
#else
|
||||
rd->Buffer = stream;
|
||||
rd->BufferLim = stream + bufferSize;
|
||||
#endif
|
||||
rd->ExtraBytes = 0;
|
||||
rd->Code = 0;
|
||||
rd->Range = (0xFFFFFFFF);
|
||||
for(i = 0; i < 5; i++)
|
||||
rd->Code = (rd->Code << 8) | ReadByte;
|
||||
}
|
||||
|
||||
#define RC_INIT_VAR UInt32 range = rd->Range; UInt32 code = rd->Code;
|
||||
#define RC_FLUSH_VAR rd->Range = range; rd->Code = code;
|
||||
#define RC_NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | ReadByte; }
|
||||
|
||||
UInt32 RangeDecoderDecodeDirectBits(CRangeDecoder *rd, int numTotalBits)
|
||||
{
|
||||
RC_INIT_VAR
|
||||
UInt32 result = 0;
|
||||
int i;
|
||||
for (i = numTotalBits; i != 0; i--)
|
||||
{
|
||||
/* UInt32 t; */
|
||||
range >>= 1;
|
||||
|
||||
result <<= 1;
|
||||
if (code >= range)
|
||||
{
|
||||
code -= range;
|
||||
result |= 1;
|
||||
}
|
||||
/*
|
||||
t = (code - range) >> 31;
|
||||
t &= 1;
|
||||
code -= range & (t - 1);
|
||||
result = (result + result) | (1 - t);
|
||||
*/
|
||||
RC_NORMALIZE
|
||||
}
|
||||
RC_FLUSH_VAR
|
||||
return result;
|
||||
}
|
||||
|
||||
int RangeDecoderBitDecode(CProb *prob, CRangeDecoder *rd)
|
||||
{
|
||||
UInt32 bound = (rd->Range >> kNumBitModelTotalBits) * *prob;
|
||||
if (rd->Code < bound)
|
||||
{
|
||||
rd->Range = bound;
|
||||
*prob += (kBitModelTotal - *prob) >> kNumMoveBits;
|
||||
if (rd->Range < kTopValue)
|
||||
{
|
||||
rd->Code = (rd->Code << 8) | ReadByte;
|
||||
rd->Range <<= 8;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
rd->Range -= bound;
|
||||
rd->Code -= bound;
|
||||
*prob -= (*prob) >> kNumMoveBits;
|
||||
if (rd->Range < kTopValue)
|
||||
{
|
||||
rd->Code = (rd->Code << 8) | ReadByte;
|
||||
rd->Range <<= 8;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
#define RC_GET_BIT2(prob, mi, A0, A1) \
|
||||
UInt32 bound = (range >> kNumBitModelTotalBits) * *prob; \
|
||||
if (code < bound) \
|
||||
{ A0; range = bound; *prob += (kBitModelTotal - *prob) >> kNumMoveBits; mi <<= 1; } \
|
||||
else \
|
||||
{ A1; range -= bound; code -= bound; *prob -= (*prob) >> kNumMoveBits; mi = (mi + mi) + 1; } \
|
||||
RC_NORMALIZE
|
||||
|
||||
#define RC_GET_BIT(prob, mi) RC_GET_BIT2(prob, mi, ; , ;)
|
||||
|
||||
int RangeDecoderBitTreeDecode(CProb *probs, int numLevels, CRangeDecoder *rd)
|
||||
{
|
||||
int mi = 1;
|
||||
int i;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_INIT_VAR
|
||||
#endif
|
||||
for(i = numLevels; i != 0; i--)
|
||||
{
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
CProb *prob = probs + mi;
|
||||
RC_GET_BIT(prob, mi)
|
||||
#else
|
||||
mi = (mi + mi) + RangeDecoderBitDecode(probs + mi, rd);
|
||||
#endif
|
||||
}
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_FLUSH_VAR
|
||||
#endif
|
||||
return mi - (1 << numLevels);
|
||||
}
|
||||
|
||||
int RangeDecoderReverseBitTreeDecode(CProb *probs, int numLevels, CRangeDecoder *rd)
|
||||
{
|
||||
int mi = 1;
|
||||
int i;
|
||||
int symbol = 0;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_INIT_VAR
|
||||
#endif
|
||||
for(i = 0; i < numLevels; i++)
|
||||
{
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
CProb *prob = probs + mi;
|
||||
RC_GET_BIT2(prob, mi, ; , symbol |= (1 << i))
|
||||
#else
|
||||
int bit = RangeDecoderBitDecode(probs + mi, rd);
|
||||
mi = mi + mi + bit;
|
||||
symbol |= (bit << i);
|
||||
#endif
|
||||
}
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_FLUSH_VAR
|
||||
#endif
|
||||
return symbol;
|
||||
}
|
||||
|
||||
Byte LzmaLiteralDecode(CProb *probs, CRangeDecoder *rd)
|
||||
{
|
||||
int symbol = 1;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_INIT_VAR
|
||||
#endif
|
||||
do
|
||||
{
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
CProb *prob = probs + symbol;
|
||||
RC_GET_BIT(prob, symbol)
|
||||
#else
|
||||
symbol = (symbol + symbol) | RangeDecoderBitDecode(probs + symbol, rd);
|
||||
#endif
|
||||
}
|
||||
while (symbol < 0x100);
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_FLUSH_VAR
|
||||
#endif
|
||||
return symbol;
|
||||
}
|
||||
|
||||
Byte LzmaLiteralDecodeMatch(CProb *probs, CRangeDecoder *rd, Byte matchByte)
|
||||
{
|
||||
int symbol = 1;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_INIT_VAR
|
||||
#endif
|
||||
do
|
||||
{
|
||||
int bit;
|
||||
int matchBit = (matchByte >> 7) & 1;
|
||||
matchByte <<= 1;
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
{
|
||||
CProb *prob = probs + 0x100 + (matchBit << 8) + symbol;
|
||||
RC_GET_BIT2(prob, symbol, bit = 0, bit = 1)
|
||||
}
|
||||
#else
|
||||
bit = RangeDecoderBitDecode(probs + 0x100 + (matchBit << 8) + symbol, rd);
|
||||
symbol = (symbol << 1) | bit;
|
||||
#endif
|
||||
if (matchBit != bit)
|
||||
{
|
||||
while (symbol < 0x100)
|
||||
{
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
CProb *prob = probs + symbol;
|
||||
RC_GET_BIT(prob, symbol)
|
||||
#else
|
||||
symbol = (symbol + symbol) | RangeDecoderBitDecode(probs + symbol, rd);
|
||||
#endif
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
while (symbol < 0x100);
|
||||
#ifdef _LZMA_LOC_OPT
|
||||
RC_FLUSH_VAR
|
||||
#endif
|
||||
return symbol;
|
||||
}
|
||||
|
||||
#define kNumPosBitsMax 4
|
||||
#define kNumPosStatesMax (1 << kNumPosBitsMax)
|
||||
|
||||
#define kLenNumLowBits 3
|
||||
#define kLenNumLowSymbols (1 << kLenNumLowBits)
|
||||
#define kLenNumMidBits 3
|
||||
#define kLenNumMidSymbols (1 << kLenNumMidBits)
|
||||
#define kLenNumHighBits 8
|
||||
#define kLenNumHighSymbols (1 << kLenNumHighBits)
|
||||
|
||||
#define LenChoice 0
|
||||
#define LenChoice2 (LenChoice + 1)
|
||||
#define LenLow (LenChoice2 + 1)
|
||||
#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
|
||||
#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
|
||||
#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
|
||||
|
||||
int LzmaLenDecode(CProb *p, CRangeDecoder *rd, int posState)
|
||||
{
|
||||
if(RangeDecoderBitDecode(p + LenChoice, rd) == 0)
|
||||
return RangeDecoderBitTreeDecode(p + LenLow +
|
||||
(posState << kLenNumLowBits), kLenNumLowBits, rd);
|
||||
if(RangeDecoderBitDecode(p + LenChoice2, rd) == 0)
|
||||
return kLenNumLowSymbols + RangeDecoderBitTreeDecode(p + LenMid +
|
||||
(posState << kLenNumMidBits), kLenNumMidBits, rd);
|
||||
return kLenNumLowSymbols + kLenNumMidSymbols +
|
||||
RangeDecoderBitTreeDecode(p + LenHigh, kLenNumHighBits, rd);
|
||||
}
|
||||
|
||||
#define kNumStates 12
|
||||
#define kNumLitStates 7
|
||||
|
||||
#define kStartPosModelIndex 4
|
||||
#define kEndPosModelIndex 14
|
||||
#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
|
||||
|
||||
#define kNumPosSlotBits 6
|
||||
#define kNumLenToPosStates 4
|
||||
|
||||
#define kNumAlignBits 4
|
||||
#define kAlignTableSize (1 << kNumAlignBits)
|
||||
|
||||
#define kMatchMinLen 2
|
||||
|
||||
#define IsMatch 0
|
||||
#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
|
||||
#define IsRepG0 (IsRep + kNumStates)
|
||||
#define IsRepG1 (IsRepG0 + kNumStates)
|
||||
#define IsRepG2 (IsRepG1 + kNumStates)
|
||||
#define IsRep0Long (IsRepG2 + kNumStates)
|
||||
#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
|
||||
#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
|
||||
#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
|
||||
#define LenCoder (Align + kAlignTableSize)
|
||||
#define RepLenCoder (LenCoder + kNumLenProbs)
|
||||
#define Literal (RepLenCoder + kNumLenProbs)
|
||||
|
||||
#if Literal != LZMA_BASE_SIZE
|
||||
StopCompilingDueBUG
|
||||
#endif
|
||||
|
||||
int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size)
|
||||
{
|
||||
unsigned char prop0;
|
||||
if (size < LZMA_PROPERTIES_SIZE)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
prop0 = propsData[0];
|
||||
if (prop0 >= (9 * 5 * 5))
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
{
|
||||
for (propsRes->pb = 0; prop0 >= (9 * 5); propsRes->pb++, prop0 -= (9 * 5));
|
||||
for (propsRes->lp = 0; prop0 >= 9; propsRes->lp++, prop0 -= 9);
|
||||
propsRes->lc = prop0;
|
||||
/*
|
||||
unsigned char remainder = (unsigned char)(prop0 / 9);
|
||||
propsRes->lc = prop0 % 9;
|
||||
propsRes->pb = remainder / 5;
|
||||
propsRes->lp = remainder % 5;
|
||||
*/
|
||||
}
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
{
|
||||
int i;
|
||||
propsRes->DictionarySize = 0;
|
||||
for (i = 0; i < 4; i++)
|
||||
propsRes->DictionarySize += (UInt32)(propsData[1 + i]) << (i * 8);
|
||||
if (propsRes->DictionarySize == 0)
|
||||
propsRes->DictionarySize = 1;
|
||||
}
|
||||
#endif
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
||||
|
||||
#define kLzmaStreamWasFinishedId (-1)
|
||||
|
||||
int LzmaDecode(CLzmaDecoderState *vs,
|
||||
#ifdef _LZMA_IN_CB
|
||||
ILzmaInCallback *InCallback,
|
||||
#else
|
||||
const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
|
||||
#endif
|
||||
unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed)
|
||||
{
|
||||
CProb *p = vs->Probs;
|
||||
SizeT nowPos = 0;
|
||||
Byte previousByte = 0;
|
||||
UInt32 posStateMask = (1 << (vs->Properties.pb)) - 1;
|
||||
UInt32 literalPosMask = (1 << (vs->Properties.lp)) - 1;
|
||||
int lc = vs->Properties.lc;
|
||||
CRangeDecoder rd;
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
|
||||
int state = vs->State;
|
||||
UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3];
|
||||
int len = vs->RemainLen;
|
||||
UInt32 globalPos = vs->GlobalPos;
|
||||
UInt32 distanceLimit = vs->DistanceLimit;
|
||||
|
||||
Byte *dictionary = vs->Dictionary;
|
||||
UInt32 dictionarySize = vs->Properties.DictionarySize;
|
||||
UInt32 dictionaryPos = vs->DictionaryPos;
|
||||
|
||||
Byte tempDictionary[4];
|
||||
|
||||
rd.Range = vs->Range;
|
||||
rd.Code = vs->Code;
|
||||
#ifdef _LZMA_IN_CB
|
||||
rd.InCallback = InCallback;
|
||||
rd.Buffer = vs->Buffer;
|
||||
rd.BufferLim = vs->BufferLim;
|
||||
#else
|
||||
rd.Buffer = inStream;
|
||||
rd.BufferLim = inStream + inSize;
|
||||
#endif
|
||||
|
||||
#ifndef _LZMA_IN_CB
|
||||
*inSizeProcessed = 0;
|
||||
#endif
|
||||
*outSizeProcessed = 0;
|
||||
if (len == kLzmaStreamWasFinishedId)
|
||||
return LZMA_RESULT_OK;
|
||||
|
||||
if (dictionarySize == 0)
|
||||
{
|
||||
dictionary = tempDictionary;
|
||||
dictionarySize = 1;
|
||||
tempDictionary[0] = vs->TempDictionary[0];
|
||||
}
|
||||
|
||||
if (len == kLzmaNeedInitId)
|
||||
{
|
||||
{
|
||||
UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));
|
||||
UInt32 i;
|
||||
for (i = 0; i < numProbs; i++)
|
||||
p[i] = kBitModelTotal >> 1;
|
||||
rep0 = rep1 = rep2 = rep3 = 1;
|
||||
state = 0;
|
||||
globalPos = 0;
|
||||
distanceLimit = 0;
|
||||
dictionaryPos = 0;
|
||||
dictionary[dictionarySize - 1] = 0;
|
||||
RangeDecoderInit(&rd
|
||||
#ifndef _LZMA_IN_CB
|
||||
, inStream, inSize
|
||||
#endif
|
||||
);
|
||||
#ifdef _LZMA_IN_CB
|
||||
if (rd.Result != LZMA_RESULT_OK)
|
||||
return rd.Result;
|
||||
#endif
|
||||
if (rd.ExtraBytes != 0)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
}
|
||||
len = 0;
|
||||
}
|
||||
while(len != 0 && nowPos < outSize)
|
||||
{
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos];
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
len--;
|
||||
}
|
||||
if (dictionaryPos == 0)
|
||||
previousByte = dictionary[dictionarySize - 1];
|
||||
else
|
||||
previousByte = dictionary[dictionaryPos - 1];
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
rd.Result = LZMA_RESULT_OK;
|
||||
#endif
|
||||
rd.ExtraBytes = 0;
|
||||
|
||||
#else /* if !_LZMA_OUT_READ */
|
||||
|
||||
int state = 0;
|
||||
UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1;
|
||||
int len = 0;
|
||||
|
||||
#ifndef _LZMA_IN_CB
|
||||
*inSizeProcessed = 0;
|
||||
#endif
|
||||
*outSizeProcessed = 0;
|
||||
|
||||
{
|
||||
UInt32 i;
|
||||
UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));
|
||||
for (i = 0; i < numProbs; i++)
|
||||
p[i] = kBitModelTotal >> 1;
|
||||
}
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
rd.InCallback = InCallback;
|
||||
#endif
|
||||
RangeDecoderInit(&rd
|
||||
#ifndef _LZMA_IN_CB
|
||||
, inStream, inSize
|
||||
#endif
|
||||
);
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
if (rd.Result != LZMA_RESULT_OK)
|
||||
return rd.Result;
|
||||
#endif
|
||||
if (rd.ExtraBytes != 0)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
|
||||
#endif /* _LZMA_OUT_READ */
|
||||
|
||||
|
||||
while(nowPos < outSize)
|
||||
{
|
||||
int posState = (int)(
|
||||
(nowPos
|
||||
#ifdef _LZMA_OUT_READ
|
||||
+ globalPos
|
||||
#endif
|
||||
)
|
||||
& posStateMask);
|
||||
#ifdef _LZMA_IN_CB
|
||||
if (rd.Result != LZMA_RESULT_OK)
|
||||
return rd.Result;
|
||||
#endif
|
||||
if (rd.ExtraBytes != 0)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
if (RangeDecoderBitDecode(p + IsMatch + (state << kNumPosBitsMax) + posState, &rd) == 0)
|
||||
{
|
||||
CProb *probs = p + Literal + (LZMA_LIT_SIZE *
|
||||
(((
|
||||
(nowPos
|
||||
#ifdef _LZMA_OUT_READ
|
||||
+ globalPos
|
||||
#endif
|
||||
)
|
||||
& literalPosMask) << lc) + (previousByte >> (8 - lc))));
|
||||
|
||||
if (state >= kNumLitStates)
|
||||
{
|
||||
Byte matchByte;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
matchByte = dictionary[pos];
|
||||
#else
|
||||
matchByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
previousByte = LzmaLiteralDecodeMatch(probs, &rd, matchByte);
|
||||
}
|
||||
else
|
||||
previousByte = LzmaLiteralDecode(probs, &rd);
|
||||
outStream[nowPos++] = previousByte;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (distanceLimit < dictionarySize)
|
||||
distanceLimit++;
|
||||
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#endif
|
||||
if (state < 4) state = 0;
|
||||
else if (state < 10) state -= 3;
|
||||
else state -= 6;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (RangeDecoderBitDecode(p + IsRep + state, &rd) == 1)
|
||||
{
|
||||
if (RangeDecoderBitDecode(p + IsRepG0 + state, &rd) == 0)
|
||||
{
|
||||
if (RangeDecoderBitDecode(p + IsRep0Long + (state << kNumPosBitsMax) + posState, &rd) == 0)
|
||||
{
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos;
|
||||
#endif
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (distanceLimit == 0)
|
||||
#else
|
||||
if (nowPos == 0)
|
||||
#endif
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
|
||||
state = state < 7 ? 9 : 11;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
previousByte = dictionary[pos];
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#else
|
||||
previousByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
outStream[nowPos++] = previousByte;
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (distanceLimit < dictionarySize)
|
||||
distanceLimit++;
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
UInt32 distance;
|
||||
if(RangeDecoderBitDecode(p + IsRepG1 + state, &rd) == 0)
|
||||
distance = rep1;
|
||||
else
|
||||
{
|
||||
if(RangeDecoderBitDecode(p + IsRepG2 + state, &rd) == 0)
|
||||
distance = rep2;
|
||||
else
|
||||
{
|
||||
distance = rep3;
|
||||
rep3 = rep2;
|
||||
}
|
||||
rep2 = rep1;
|
||||
}
|
||||
rep1 = rep0;
|
||||
rep0 = distance;
|
||||
}
|
||||
len = LzmaLenDecode(p + RepLenCoder, &rd, posState);
|
||||
state = state < 7 ? 8 : 11;
|
||||
}
|
||||
else
|
||||
{
|
||||
int posSlot;
|
||||
rep3 = rep2;
|
||||
rep2 = rep1;
|
||||
rep1 = rep0;
|
||||
state = state < 7 ? 7 : 10;
|
||||
len = LzmaLenDecode(p + LenCoder, &rd, posState);
|
||||
posSlot = RangeDecoderBitTreeDecode(p + PosSlot +
|
||||
((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
|
||||
kNumPosSlotBits), kNumPosSlotBits, &rd);
|
||||
if (posSlot >= kStartPosModelIndex)
|
||||
{
|
||||
int numDirectBits = ((posSlot >> 1) - 1);
|
||||
rep0 = ((2 | ((UInt32)posSlot & 1)) << numDirectBits);
|
||||
if (posSlot < kEndPosModelIndex)
|
||||
{
|
||||
rep0 += RangeDecoderReverseBitTreeDecode(
|
||||
p + SpecPos + rep0 - posSlot - 1, numDirectBits, &rd);
|
||||
}
|
||||
else
|
||||
{
|
||||
rep0 += RangeDecoderDecodeDirectBits(&rd,
|
||||
numDirectBits - kNumAlignBits) << kNumAlignBits;
|
||||
rep0 += RangeDecoderReverseBitTreeDecode(p + Align, kNumAlignBits, &rd);
|
||||
}
|
||||
}
|
||||
else
|
||||
rep0 = posSlot;
|
||||
if (++rep0 == (UInt32)(0))
|
||||
{
|
||||
/* it's for stream version */
|
||||
len = kLzmaStreamWasFinishedId;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
len += kMatchMinLen;
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (rep0 > distanceLimit)
|
||||
#else
|
||||
if (rep0 > nowPos)
|
||||
#endif
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (dictionarySize - distanceLimit > (UInt32)len)
|
||||
distanceLimit += len;
|
||||
else
|
||||
distanceLimit = dictionarySize;
|
||||
#endif
|
||||
|
||||
do
|
||||
{
|
||||
#ifdef _LZMA_OUT_READ
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
previousByte = dictionary[pos];
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
#else
|
||||
previousByte = outStream[nowPos - rep0];
|
||||
#endif
|
||||
len--;
|
||||
outStream[nowPos++] = previousByte;
|
||||
}
|
||||
while(len != 0 && nowPos < outSize);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
vs->Range = rd.Range;
|
||||
vs->Code = rd.Code;
|
||||
vs->DictionaryPos = dictionaryPos;
|
||||
vs->GlobalPos = globalPos + (UInt32)nowPos;
|
||||
vs->DistanceLimit = distanceLimit;
|
||||
vs->Reps[0] = rep0;
|
||||
vs->Reps[1] = rep1;
|
||||
vs->Reps[2] = rep2;
|
||||
vs->Reps[3] = rep3;
|
||||
vs->State = state;
|
||||
vs->RemainLen = len;
|
||||
vs->TempDictionary[0] = tempDictionary[0];
|
||||
#endif
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
vs->Buffer = rd.Buffer;
|
||||
vs->BufferLim = rd.BufferLim;
|
||||
#else
|
||||
*inSizeProcessed = (SizeT)(rd.Buffer - inStream);
|
||||
#endif
|
||||
*outSizeProcessed = nowPos;
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
521
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaStateDecode.c
Normal file
521
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaStateDecode.c
Normal file
|
@ -0,0 +1,521 @@
|
|||
/*
|
||||
LzmaStateDecode.c
|
||||
LZMA Decoder (State version)
|
||||
|
||||
LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
|
||||
http://www.7-zip.org/
|
||||
|
||||
LZMA SDK is licensed under two licenses:
|
||||
1) GNU Lesser General Public License (GNU LGPL)
|
||||
2) Common Public License (CPL)
|
||||
It means that you can select one of these two licenses and
|
||||
follow rules of that license.
|
||||
|
||||
SPECIAL EXCEPTION:
|
||||
Igor Pavlov, as the author of this Code, expressly permits you to
|
||||
statically or dynamically link your Code (or bind by name) to the
|
||||
interfaces of this file without subjecting your linked Code to the
|
||||
terms of the CPL or GNU LGPL. Any modifications or additions
|
||||
to this file, however, are subject to the LGPL or CPL terms.
|
||||
*/
|
||||
|
||||
#include "LzmaStateDecode.h"
|
||||
|
||||
#define kNumTopBits 24
|
||||
#define kTopValue ((UInt32)1 << kNumTopBits)
|
||||
|
||||
#define kNumBitModelTotalBits 11
|
||||
#define kBitModelTotal (1 << kNumBitModelTotalBits)
|
||||
#define kNumMoveBits 5
|
||||
|
||||
#define RC_READ_BYTE (*Buffer++)
|
||||
|
||||
#define RC_INIT Code = 0; Range = 0xFFFFFFFF; \
|
||||
{ int i; for(i = 0; i < 5; i++) { Code = (Code << 8) | RC_READ_BYTE; }}
|
||||
|
||||
#define RC_NORMALIZE if (Range < kTopValue) { Range <<= 8; Code = (Code << 8) | RC_READ_BYTE; }
|
||||
|
||||
#define IfBit0(p) RC_NORMALIZE; bound = (Range >> kNumBitModelTotalBits) * *(p); if (Code < bound)
|
||||
#define UpdateBit0(p) Range = bound; *(p) += (kBitModelTotal - *(p)) >> kNumMoveBits;
|
||||
#define UpdateBit1(p) Range -= bound; Code -= bound; *(p) -= (*(p)) >> kNumMoveBits;
|
||||
|
||||
#define RC_GET_BIT2(p, mi, A0, A1) IfBit0(p) \
|
||||
{ UpdateBit0(p); mi <<= 1; A0; } else \
|
||||
{ UpdateBit1(p); mi = (mi + mi) + 1; A1; }
|
||||
|
||||
#define RC_GET_BIT(p, mi) RC_GET_BIT2(p, mi, ; , ;)
|
||||
|
||||
#define RangeDecoderBitTreeDecode(probs, numLevels, res) \
|
||||
{ int i = numLevels; res = 1; \
|
||||
do { CProb *p = probs + res; RC_GET_BIT(p, res) } while(--i != 0); \
|
||||
res -= (1 << numLevels); }
|
||||
|
||||
|
||||
#define kNumPosBitsMax 4
|
||||
#define kNumPosStatesMax (1 << kNumPosBitsMax)
|
||||
|
||||
#define kLenNumLowBits 3
|
||||
#define kLenNumLowSymbols (1 << kLenNumLowBits)
|
||||
#define kLenNumMidBits 3
|
||||
#define kLenNumMidSymbols (1 << kLenNumMidBits)
|
||||
#define kLenNumHighBits 8
|
||||
#define kLenNumHighSymbols (1 << kLenNumHighBits)
|
||||
|
||||
#define LenChoice 0
|
||||
#define LenChoice2 (LenChoice + 1)
|
||||
#define LenLow (LenChoice2 + 1)
|
||||
#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
|
||||
#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
|
||||
#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
|
||||
|
||||
|
||||
#define kNumStates 12
|
||||
#define kNumLitStates 7
|
||||
|
||||
#define kStartPosModelIndex 4
|
||||
#define kEndPosModelIndex 14
|
||||
#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
|
||||
|
||||
#define kNumPosSlotBits 6
|
||||
#define kNumLenToPosStates 4
|
||||
|
||||
#define kNumAlignBits 4
|
||||
#define kAlignTableSize (1 << kNumAlignBits)
|
||||
|
||||
#define kMatchMinLen 2
|
||||
|
||||
#define IsMatch 0
|
||||
#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
|
||||
#define IsRepG0 (IsRep + kNumStates)
|
||||
#define IsRepG1 (IsRepG0 + kNumStates)
|
||||
#define IsRepG2 (IsRepG1 + kNumStates)
|
||||
#define IsRep0Long (IsRepG2 + kNumStates)
|
||||
#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
|
||||
#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
|
||||
#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
|
||||
#define LenCoder (Align + kAlignTableSize)
|
||||
#define RepLenCoder (LenCoder + kNumLenProbs)
|
||||
#define Literal (RepLenCoder + kNumLenProbs)
|
||||
|
||||
#if Literal != LZMA_BASE_SIZE
|
||||
StopCompilingDueBUG
|
||||
#endif
|
||||
|
||||
/* kRequiredInBufferSize = number of required input bytes for worst case:
|
||||
longest match with longest distance.
|
||||
kLzmaInBufferSize must be larger than kRequiredInBufferSize
|
||||
23 bits = 2 (match select) + 10 (len) + 6 (distance) + 4(align) + 1 (RC_NORMALIZE)
|
||||
*/
|
||||
|
||||
#define kRequiredInBufferSize ((23 * (kNumBitModelTotalBits - kNumMoveBits + 1) + 26 + 9) / 8)
|
||||
|
||||
#define kLzmaStreamWasFinishedId (-1)
|
||||
|
||||
int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size)
|
||||
{
|
||||
unsigned char prop0;
|
||||
if (size < LZMA_PROPERTIES_SIZE)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
prop0 = propsData[0];
|
||||
if (prop0 >= (9 * 5 * 5))
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
{
|
||||
for (propsRes->pb = 0; prop0 >= (9 * 5); propsRes->pb++, prop0 -= (9 * 5));
|
||||
for (propsRes->lp = 0; prop0 >= 9; propsRes->lp++, prop0 -= 9);
|
||||
propsRes->lc = prop0;
|
||||
/*
|
||||
unsigned char remainder = (unsigned char)(prop0 / 9);
|
||||
propsRes->lc = prop0 % 9;
|
||||
propsRes->pb = remainder / 5;
|
||||
propsRes->lp = remainder % 5;
|
||||
*/
|
||||
}
|
||||
|
||||
{
|
||||
int i;
|
||||
propsRes->DictionarySize = 0;
|
||||
for (i = 0; i < 4; i++)
|
||||
propsRes->DictionarySize += (UInt32)(propsData[1 + i]) << (i * 8);
|
||||
if (propsRes->DictionarySize == 0)
|
||||
propsRes->DictionarySize = 1;
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
||||
}
|
||||
|
||||
int LzmaDecode(
|
||||
CLzmaDecoderState *vs,
|
||||
const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
|
||||
unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed,
|
||||
int finishDecoding)
|
||||
{
|
||||
UInt32 Range = vs->Range;
|
||||
UInt32 Code = vs->Code;
|
||||
|
||||
unsigned char *Buffer = vs->Buffer;
|
||||
int BufferSize = vs->BufferSize; /* don't change it to unsigned int */
|
||||
CProb *p = vs->Probs;
|
||||
|
||||
int state = vs->State;
|
||||
unsigned char previousByte;
|
||||
UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3];
|
||||
SizeT nowPos = 0;
|
||||
UInt32 posStateMask = (1 << (vs->Properties.pb)) - 1;
|
||||
UInt32 literalPosMask = (1 << (vs->Properties.lp)) - 1;
|
||||
int lc = vs->Properties.lc;
|
||||
int len = vs->RemainLen;
|
||||
UInt32 globalPos = vs->GlobalPos;
|
||||
UInt32 distanceLimit = vs->DistanceLimit;
|
||||
|
||||
unsigned char *dictionary = vs->Dictionary;
|
||||
UInt32 dictionarySize = vs->Properties.DictionarySize;
|
||||
UInt32 dictionaryPos = vs->DictionaryPos;
|
||||
|
||||
unsigned char tempDictionary[4];
|
||||
|
||||
(*inSizeProcessed) = 0;
|
||||
(*outSizeProcessed) = 0;
|
||||
if (len == kLzmaStreamWasFinishedId)
|
||||
return LZMA_RESULT_OK;
|
||||
|
||||
if (dictionarySize == 0)
|
||||
{
|
||||
dictionary = tempDictionary;
|
||||
dictionarySize = 1;
|
||||
tempDictionary[0] = vs->TempDictionary[0];
|
||||
}
|
||||
|
||||
if (len == kLzmaNeedInitId)
|
||||
{
|
||||
while (inSize > 0 && BufferSize < kLzmaInBufferSize)
|
||||
{
|
||||
Buffer[BufferSize++] = *inStream++;
|
||||
(*inSizeProcessed)++;
|
||||
inSize--;
|
||||
}
|
||||
if (BufferSize < 5)
|
||||
{
|
||||
vs->BufferSize = BufferSize;
|
||||
return finishDecoding ? LZMA_RESULT_DATA_ERROR : LZMA_RESULT_OK;
|
||||
}
|
||||
{
|
||||
UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));
|
||||
UInt32 i;
|
||||
for (i = 0; i < numProbs; i++)
|
||||
p[i] = kBitModelTotal >> 1;
|
||||
rep0 = rep1 = rep2 = rep3 = 1;
|
||||
state = 0;
|
||||
globalPos = 0;
|
||||
distanceLimit = 0;
|
||||
dictionaryPos = 0;
|
||||
dictionary[dictionarySize - 1] = 0;
|
||||
RC_INIT;
|
||||
}
|
||||
len = 0;
|
||||
}
|
||||
while(len != 0 && nowPos < outSize)
|
||||
{
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos];
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
len--;
|
||||
}
|
||||
if (dictionaryPos == 0)
|
||||
previousByte = dictionary[dictionarySize - 1];
|
||||
else
|
||||
previousByte = dictionary[dictionaryPos - 1];
|
||||
|
||||
for (;;)
|
||||
{
|
||||
int bufferPos = (int)(Buffer - vs->Buffer);
|
||||
if (BufferSize - bufferPos < kRequiredInBufferSize)
|
||||
{
|
||||
int i;
|
||||
BufferSize -= bufferPos;
|
||||
if (BufferSize < 0)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
for (i = 0; i < BufferSize; i++)
|
||||
vs->Buffer[i] = Buffer[i];
|
||||
Buffer = vs->Buffer;
|
||||
while (inSize > 0 && BufferSize < kLzmaInBufferSize)
|
||||
{
|
||||
Buffer[BufferSize++] = *inStream++;
|
||||
(*inSizeProcessed)++;
|
||||
inSize--;
|
||||
}
|
||||
if (BufferSize < kRequiredInBufferSize && !finishDecoding)
|
||||
break;
|
||||
}
|
||||
if (nowPos >= outSize)
|
||||
break;
|
||||
{
|
||||
CProb *prob;
|
||||
UInt32 bound;
|
||||
int posState = (int)((nowPos + globalPos) & posStateMask);
|
||||
|
||||
prob = p + IsMatch + (state << kNumPosBitsMax) + posState;
|
||||
IfBit0(prob)
|
||||
{
|
||||
int symbol = 1;
|
||||
UpdateBit0(prob)
|
||||
prob = p + Literal + (LZMA_LIT_SIZE *
|
||||
((((nowPos + globalPos)& literalPosMask) << lc) + (previousByte >> (8 - lc))));
|
||||
|
||||
if (state >= kNumLitStates)
|
||||
{
|
||||
int matchByte;
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
matchByte = dictionary[pos];
|
||||
do
|
||||
{
|
||||
int bit;
|
||||
CProb *probLit;
|
||||
matchByte <<= 1;
|
||||
bit = (matchByte & 0x100);
|
||||
probLit = prob + 0x100 + bit + symbol;
|
||||
RC_GET_BIT2(probLit, symbol, if (bit != 0) break, if (bit == 0) break)
|
||||
}
|
||||
while (symbol < 0x100);
|
||||
}
|
||||
while (symbol < 0x100)
|
||||
{
|
||||
CProb *probLit = prob + symbol;
|
||||
RC_GET_BIT(probLit, symbol)
|
||||
}
|
||||
previousByte = (unsigned char)symbol;
|
||||
|
||||
outStream[nowPos++] = previousByte;
|
||||
if (distanceLimit < dictionarySize)
|
||||
distanceLimit++;
|
||||
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
if (state < 4) state = 0;
|
||||
else if (state < 10) state -= 3;
|
||||
else state -= 6;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
prob = p + IsRep + state;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob);
|
||||
rep3 = rep2;
|
||||
rep2 = rep1;
|
||||
rep1 = rep0;
|
||||
state = state < kNumLitStates ? 0 : 3;
|
||||
prob = p + LenCoder;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
prob = p + IsRepG0 + state;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob);
|
||||
prob = p + IsRep0Long + (state << kNumPosBitsMax) + posState;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UInt32 pos;
|
||||
UpdateBit0(prob);
|
||||
if (distanceLimit == 0)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
if (distanceLimit < dictionarySize)
|
||||
distanceLimit++;
|
||||
state = state < kNumLitStates ? 9 : 11;
|
||||
pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
previousByte = dictionary[pos];
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
outStream[nowPos++] = previousByte;
|
||||
continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
UInt32 distance;
|
||||
UpdateBit1(prob);
|
||||
prob = p + IsRepG1 + state;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob);
|
||||
distance = rep1;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
prob = p + IsRepG2 + state;
|
||||
IfBit0(prob)
|
||||
{
|
||||
UpdateBit0(prob);
|
||||
distance = rep2;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(prob);
|
||||
distance = rep3;
|
||||
rep3 = rep2;
|
||||
}
|
||||
rep2 = rep1;
|
||||
}
|
||||
rep1 = rep0;
|
||||
rep0 = distance;
|
||||
}
|
||||
state = state < kNumLitStates ? 8 : 11;
|
||||
prob = p + RepLenCoder;
|
||||
}
|
||||
{
|
||||
int numBits, offset;
|
||||
CProb *probLen = prob + LenChoice;
|
||||
IfBit0(probLen)
|
||||
{
|
||||
UpdateBit0(probLen);
|
||||
probLen = prob + LenLow + (posState << kLenNumLowBits);
|
||||
offset = 0;
|
||||
numBits = kLenNumLowBits;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(probLen);
|
||||
probLen = prob + LenChoice2;
|
||||
IfBit0(probLen)
|
||||
{
|
||||
UpdateBit0(probLen);
|
||||
probLen = prob + LenMid + (posState << kLenNumMidBits);
|
||||
offset = kLenNumLowSymbols;
|
||||
numBits = kLenNumMidBits;
|
||||
}
|
||||
else
|
||||
{
|
||||
UpdateBit1(probLen);
|
||||
probLen = prob + LenHigh;
|
||||
offset = kLenNumLowSymbols + kLenNumMidSymbols;
|
||||
numBits = kLenNumHighBits;
|
||||
}
|
||||
}
|
||||
RangeDecoderBitTreeDecode(probLen, numBits, len);
|
||||
len += offset;
|
||||
}
|
||||
|
||||
if (state < 4)
|
||||
{
|
||||
int posSlot;
|
||||
state += kNumLitStates;
|
||||
prob = p + PosSlot +
|
||||
((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
|
||||
kNumPosSlotBits);
|
||||
RangeDecoderBitTreeDecode(prob, kNumPosSlotBits, posSlot);
|
||||
if (posSlot >= kStartPosModelIndex)
|
||||
{
|
||||
int numDirectBits = ((posSlot >> 1) - 1);
|
||||
rep0 = (2 | ((UInt32)posSlot & 1));
|
||||
if (posSlot < kEndPosModelIndex)
|
||||
{
|
||||
rep0 <<= numDirectBits;
|
||||
prob = p + SpecPos + rep0 - posSlot - 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
numDirectBits -= kNumAlignBits;
|
||||
do
|
||||
{
|
||||
RC_NORMALIZE
|
||||
Range >>= 1;
|
||||
rep0 <<= 1;
|
||||
if (Code >= Range)
|
||||
{
|
||||
Code -= Range;
|
||||
rep0 |= 1;
|
||||
}
|
||||
}
|
||||
while (--numDirectBits != 0);
|
||||
prob = p + Align;
|
||||
rep0 <<= kNumAlignBits;
|
||||
numDirectBits = kNumAlignBits;
|
||||
}
|
||||
{
|
||||
int i = 1;
|
||||
int mi = 1;
|
||||
do
|
||||
{
|
||||
CProb *prob3 = prob + mi;
|
||||
RC_GET_BIT2(prob3, mi, ; , rep0 |= i);
|
||||
i <<= 1;
|
||||
}
|
||||
while(--numDirectBits != 0);
|
||||
}
|
||||
}
|
||||
else
|
||||
rep0 = posSlot;
|
||||
if (++rep0 == (UInt32)(0))
|
||||
{
|
||||
/* it's for stream version */
|
||||
len = kLzmaStreamWasFinishedId;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
len += kMatchMinLen;
|
||||
if (rep0 > distanceLimit)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
if (dictionarySize - distanceLimit > (UInt32)len)
|
||||
distanceLimit += len;
|
||||
else
|
||||
distanceLimit = dictionarySize;
|
||||
|
||||
do
|
||||
{
|
||||
UInt32 pos = dictionaryPos - rep0;
|
||||
if (pos >= dictionarySize)
|
||||
pos += dictionarySize;
|
||||
previousByte = dictionary[pos];
|
||||
dictionary[dictionaryPos] = previousByte;
|
||||
if (++dictionaryPos == dictionarySize)
|
||||
dictionaryPos = 0;
|
||||
len--;
|
||||
outStream[nowPos++] = previousByte;
|
||||
}
|
||||
while(len != 0 && nowPos < outSize);
|
||||
}
|
||||
}
|
||||
}
|
||||
RC_NORMALIZE;
|
||||
|
||||
BufferSize -= (int)(Buffer - vs->Buffer);
|
||||
if (BufferSize < 0)
|
||||
return LZMA_RESULT_DATA_ERROR;
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < BufferSize; i++)
|
||||
vs->Buffer[i] = Buffer[i];
|
||||
}
|
||||
vs->BufferSize = BufferSize;
|
||||
vs->Range = Range;
|
||||
vs->Code = Code;
|
||||
vs->DictionaryPos = dictionaryPos;
|
||||
vs->GlobalPos = (UInt32)(globalPos + nowPos);
|
||||
vs->DistanceLimit = distanceLimit;
|
||||
vs->Reps[0] = rep0;
|
||||
vs->Reps[1] = rep1;
|
||||
vs->Reps[2] = rep2;
|
||||
vs->Reps[3] = rep3;
|
||||
vs->State = state;
|
||||
vs->RemainLen = len;
|
||||
vs->TempDictionary[0] = tempDictionary[0];
|
||||
|
||||
(*outSizeProcessed) = nowPos;
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
96
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaStateDecode.h
Normal file
96
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaStateDecode.h
Normal file
|
@ -0,0 +1,96 @@
|
|||
/*
|
||||
LzmaStateDecode.h
|
||||
LZMA Decoder interface (State version)
|
||||
|
||||
LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
|
||||
http://www.7-zip.org/
|
||||
|
||||
LZMA SDK is licensed under two licenses:
|
||||
1) GNU Lesser General Public License (GNU LGPL)
|
||||
2) Common Public License (CPL)
|
||||
It means that you can select one of these two licenses and
|
||||
follow rules of that license.
|
||||
|
||||
SPECIAL EXCEPTION:
|
||||
Igor Pavlov, as the author of this code, expressly permits you to
|
||||
statically or dynamically link your code (or bind by name) to the
|
||||
interfaces of this file without subjecting your linked code to the
|
||||
terms of the CPL or GNU LGPL. Any modifications or additions
|
||||
to this file, however, are subject to the LGPL or CPL terms.
|
||||
*/
|
||||
|
||||
#ifndef __LZMASTATEDECODE_H
|
||||
#define __LZMASTATEDECODE_H
|
||||
|
||||
#include "LzmaTypes.h"
|
||||
|
||||
/* #define _LZMA_PROB32 */
|
||||
/* It can increase speed on some 32-bit CPUs,
|
||||
but memory usage will be doubled in that case */
|
||||
|
||||
#ifdef _LZMA_PROB32
|
||||
#define CProb UInt32
|
||||
#else
|
||||
#define CProb UInt16
|
||||
#endif
|
||||
|
||||
#define LZMA_RESULT_OK 0
|
||||
#define LZMA_RESULT_DATA_ERROR 1
|
||||
|
||||
#define LZMA_BASE_SIZE 1846
|
||||
#define LZMA_LIT_SIZE 768
|
||||
|
||||
#define LZMA_PROPERTIES_SIZE 5
|
||||
|
||||
typedef struct _CLzmaProperties
|
||||
{
|
||||
int lc;
|
||||
int lp;
|
||||
int pb;
|
||||
UInt32 DictionarySize;
|
||||
}CLzmaProperties;
|
||||
|
||||
int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size);
|
||||
|
||||
#define LzmaGetNumProbs(lzmaProps) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((lzmaProps)->lc + (lzmaProps)->lp)))
|
||||
|
||||
#define kLzmaInBufferSize 64 /* don't change it. it must be larger than kRequiredInBufferSize */
|
||||
|
||||
#define kLzmaNeedInitId (-2)
|
||||
|
||||
typedef struct _CLzmaDecoderState
|
||||
{
|
||||
CLzmaProperties Properties;
|
||||
CProb *Probs;
|
||||
unsigned char *Dictionary;
|
||||
|
||||
unsigned char Buffer[kLzmaInBufferSize];
|
||||
int BufferSize;
|
||||
|
||||
UInt32 Range;
|
||||
UInt32 Code;
|
||||
UInt32 DictionaryPos;
|
||||
UInt32 GlobalPos;
|
||||
UInt32 DistanceLimit;
|
||||
UInt32 Reps[4];
|
||||
int State;
|
||||
int RemainLen; /* -2: decoder needs internal initialization
|
||||
-1: stream was finished,
|
||||
0: ok
|
||||
> 0: need to write RemainLen bytes as match Reps[0],
|
||||
*/
|
||||
unsigned char TempDictionary[4]; /* it's required when DictionarySize = 0 */
|
||||
} CLzmaDecoderState;
|
||||
|
||||
#define LzmaDecoderInit(vs) { (vs)->RemainLen = kLzmaNeedInitId; (vs)->BufferSize = 0; }
|
||||
|
||||
/* LzmaDecode: decoding from input stream to output stream.
|
||||
If finishDecoding != 0, then there are no more bytes in input stream
|
||||
after inStream[inSize - 1]. */
|
||||
|
||||
int LzmaDecode(CLzmaDecoderState *vs,
|
||||
const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
|
||||
unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed,
|
||||
int finishDecoding);
|
||||
|
||||
#endif
|
195
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaStateTest.c
Normal file
195
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaStateTest.c
Normal file
|
@ -0,0 +1,195 @@
|
|||
/*
|
||||
LzmaStateTest.c
|
||||
Test application for LZMA Decoder (State version)
|
||||
|
||||
This file written and distributed to public domain by Igor Pavlov.
|
||||
This file is part of LZMA SDK 4.26 (2005-08-02)
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "LzmaStateDecode.h"
|
||||
|
||||
const char *kCantReadMessage = "Can not read input file";
|
||||
const char *kCantWriteMessage = "Can not write output file";
|
||||
const char *kCantAllocateMessage = "Can not allocate memory";
|
||||
|
||||
#define kInBufferSize (1 << 15)
|
||||
#define kOutBufferSize (1 << 15)
|
||||
|
||||
unsigned char g_InBuffer[kInBufferSize];
|
||||
unsigned char g_OutBuffer[kOutBufferSize];
|
||||
|
||||
size_t MyReadFile(FILE *file, void *data, size_t size)
|
||||
{ return fread(data, 1, size, file); }
|
||||
|
||||
int MyReadFileAndCheck(FILE *file, void *data, size_t size)
|
||||
{ return (MyReadFile(file, data, size) == size); }
|
||||
|
||||
int PrintError(char *buffer, const char *message)
|
||||
{
|
||||
sprintf(buffer + strlen(buffer), "\nError: ");
|
||||
sprintf(buffer + strlen(buffer), message);
|
||||
return 1;
|
||||
}
|
||||
|
||||
int main3(FILE *inFile, FILE *outFile, char *rs)
|
||||
{
|
||||
/* We use two 32-bit integers to construct 64-bit integer for file size.
|
||||
You can remove outSizeHigh, if you don't need >= 4GB supporting,
|
||||
or you can use UInt64 outSize, if your compiler supports 64-bit integers*/
|
||||
UInt32 outSize = 0;
|
||||
UInt32 outSizeHigh = 0;
|
||||
|
||||
int waitEOS = 1;
|
||||
/* waitEOS = 1, if there is no uncompressed size in headers,
|
||||
so decoder will wait EOS (End of Stream Marker) in compressed stream */
|
||||
|
||||
int i;
|
||||
int res = 0;
|
||||
CLzmaDecoderState state; /* it's about 140 bytes structure, if int is 32-bit */
|
||||
unsigned char properties[LZMA_PROPERTIES_SIZE];
|
||||
SizeT inAvail = 0;
|
||||
unsigned char *inBuffer = 0;
|
||||
|
||||
if (sizeof(UInt32) < 4)
|
||||
return PrintError(rs, "LZMA decoder needs correct UInt32");
|
||||
|
||||
/* Read LZMA properties for compressed stream */
|
||||
|
||||
if (!MyReadFileAndCheck(inFile, properties, sizeof(properties)))
|
||||
return PrintError(rs, kCantReadMessage);
|
||||
|
||||
/* Read uncompressed size */
|
||||
|
||||
for (i = 0; i < 8; i++)
|
||||
{
|
||||
unsigned char b;
|
||||
if (!MyReadFileAndCheck(inFile, &b, 1))
|
||||
return PrintError(rs, kCantReadMessage);
|
||||
if (b != 0xFF)
|
||||
waitEOS = 0;
|
||||
if (i < 4)
|
||||
outSize += (UInt32)(b) << (i * 8);
|
||||
else
|
||||
outSizeHigh += (UInt32)(b) << ((i - 4) * 8);
|
||||
}
|
||||
|
||||
/* Decode LZMA properties and allocate memory */
|
||||
|
||||
if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
|
||||
return PrintError(rs, "Incorrect stream properties");
|
||||
state.Probs = (CProb *)malloc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
|
||||
if (state.Probs == 0)
|
||||
return PrintError(rs, kCantAllocateMessage);
|
||||
|
||||
if (state.Properties.DictionarySize == 0)
|
||||
state.Dictionary = 0;
|
||||
else
|
||||
{
|
||||
state.Dictionary = (unsigned char *)malloc(state.Properties.DictionarySize);
|
||||
if (state.Dictionary == 0)
|
||||
{
|
||||
free(state.Probs);
|
||||
return PrintError(rs, kCantAllocateMessage);
|
||||
}
|
||||
}
|
||||
|
||||
/* Decompress */
|
||||
|
||||
LzmaDecoderInit(&state);
|
||||
|
||||
do
|
||||
{
|
||||
SizeT inProcessed, outProcessed;
|
||||
int finishDecoding;
|
||||
UInt32 outAvail = kOutBufferSize;
|
||||
if (!waitEOS && outSizeHigh == 0 && outAvail > outSize)
|
||||
outAvail = outSize;
|
||||
if (inAvail == 0)
|
||||
{
|
||||
inAvail = (SizeT)MyReadFile(inFile, g_InBuffer, kInBufferSize);
|
||||
inBuffer = g_InBuffer;
|
||||
}
|
||||
finishDecoding = (inAvail == 0);
|
||||
res = LzmaDecode(&state,
|
||||
inBuffer, inAvail, &inProcessed,
|
||||
g_OutBuffer, outAvail, &outProcessed,
|
||||
finishDecoding);
|
||||
if (res != 0)
|
||||
{
|
||||
sprintf(rs + strlen(rs), "\nDecoding error = %d\n", res);
|
||||
res = 1;
|
||||
break;
|
||||
}
|
||||
inAvail -= inProcessed;
|
||||
inBuffer += inProcessed;
|
||||
|
||||
if (outFile != 0)
|
||||
if (fwrite(g_OutBuffer, 1, outProcessed, outFile) != outProcessed)
|
||||
{
|
||||
PrintError(rs, kCantWriteMessage);
|
||||
res = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
if (outSize < outProcessed)
|
||||
outSizeHigh--;
|
||||
outSize -= (UInt32)outProcessed;
|
||||
outSize &= 0xFFFFFFFF;
|
||||
|
||||
if (outProcessed == 0 && finishDecoding)
|
||||
{
|
||||
if (!waitEOS && (outSize != 0 || outSizeHigh != 0))
|
||||
res = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
while ((outSize != 0 && outSizeHigh == 0) || outSizeHigh != 0 || waitEOS);
|
||||
|
||||
free(state.Dictionary);
|
||||
free(state.Probs);
|
||||
return res;
|
||||
}
|
||||
|
||||
int main2(int numArgs, const char *args[], char *rs)
|
||||
{
|
||||
FILE *inFile = 0;
|
||||
FILE *outFile = 0;
|
||||
int res;
|
||||
|
||||
sprintf(rs + strlen(rs), "\nLZMA Decoder 4.26 Copyright (c) 1999-2005 Igor Pavlov 2005-08-02\n");
|
||||
if (numArgs < 2 || numArgs > 3)
|
||||
{
|
||||
sprintf(rs + strlen(rs), "\nUsage: lzmadec file.lzma [outFile]\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
inFile = fopen(args[1], "rb");
|
||||
if (inFile == 0)
|
||||
return PrintError(rs, "Can not open input file");
|
||||
|
||||
if (numArgs > 2)
|
||||
{
|
||||
outFile = fopen(args[2], "wb+");
|
||||
if (outFile == 0)
|
||||
return PrintError(rs, "Can not open output file");
|
||||
}
|
||||
|
||||
res = main3(inFile, outFile, rs);
|
||||
|
||||
if (outFile != 0)
|
||||
fclose(outFile);
|
||||
fclose(inFile);
|
||||
return res;
|
||||
}
|
||||
|
||||
int main(int numArgs, const char *args[])
|
||||
{
|
||||
char rs[800] = { 0 };
|
||||
int res = main2(numArgs, args, rs);
|
||||
printf(rs);
|
||||
return res;
|
||||
}
|
342
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaTest.c
Normal file
342
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaTest.c
Normal file
|
@ -0,0 +1,342 @@
|
|||
/*
|
||||
LzmaTest.c
|
||||
Test application for LZMA Decoder
|
||||
|
||||
This file written and distributed to public domain by Igor Pavlov.
|
||||
This file is part of LZMA SDK 4.26 (2005-08-05)
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "LzmaDecode.h"
|
||||
|
||||
const char *kCantReadMessage = "Can not read input file";
|
||||
const char *kCantWriteMessage = "Can not write output file";
|
||||
const char *kCantAllocateMessage = "Can not allocate memory";
|
||||
|
||||
size_t MyReadFile(FILE *file, void *data, size_t size)
|
||||
{
|
||||
if (size == 0)
|
||||
return 0;
|
||||
return fread(data, 1, size, file);
|
||||
}
|
||||
|
||||
int MyReadFileAndCheck(FILE *file, void *data, size_t size)
|
||||
{ return (MyReadFile(file, data, size) == size);}
|
||||
|
||||
size_t MyWriteFile(FILE *file, const void *data, size_t size)
|
||||
{
|
||||
if (size == 0)
|
||||
return 0;
|
||||
return fwrite(data, 1, size, file);
|
||||
}
|
||||
|
||||
int MyWriteFileAndCheck(FILE *file, const void *data, size_t size)
|
||||
{ return (MyWriteFile(file, data, size) == size); }
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
#define kInBufferSize (1 << 15)
|
||||
typedef struct _CBuffer
|
||||
{
|
||||
ILzmaInCallback InCallback;
|
||||
FILE *File;
|
||||
unsigned char Buffer[kInBufferSize];
|
||||
} CBuffer;
|
||||
|
||||
int LzmaReadCompressed(void *object, const unsigned char **buffer, SizeT *size)
|
||||
{
|
||||
CBuffer *b = (CBuffer *)object;
|
||||
*buffer = b->Buffer;
|
||||
*size = (SizeT)MyReadFile(b->File, b->Buffer, kInBufferSize);
|
||||
return LZMA_RESULT_OK;
|
||||
}
|
||||
CBuffer g_InBuffer;
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
#define kOutBufferSize (1 << 15)
|
||||
unsigned char g_OutBuffer[kOutBufferSize];
|
||||
#endif
|
||||
|
||||
int PrintError(char *buffer, const char *message)
|
||||
{
|
||||
sprintf(buffer + strlen(buffer), "\nError: ");
|
||||
sprintf(buffer + strlen(buffer), message);
|
||||
return 1;
|
||||
}
|
||||
|
||||
int main3(FILE *inFile, FILE *outFile, char *rs)
|
||||
{
|
||||
/* We use two 32-bit integers to construct 64-bit integer for file size.
|
||||
You can remove outSizeHigh, if you don't need >= 4GB supporting,
|
||||
or you can use UInt64 outSize, if your compiler supports 64-bit integers*/
|
||||
UInt32 outSize = 0;
|
||||
UInt32 outSizeHigh = 0;
|
||||
#ifndef _LZMA_OUT_READ
|
||||
SizeT outSizeFull;
|
||||
unsigned char *outStream;
|
||||
#endif
|
||||
|
||||
int waitEOS = 1;
|
||||
/* waitEOS = 1, if there is no uncompressed size in headers,
|
||||
so decoder will wait EOS (End of Stream Marker) in compressed stream */
|
||||
|
||||
#ifndef _LZMA_IN_CB
|
||||
SizeT compressedSize;
|
||||
unsigned char *inStream;
|
||||
#endif
|
||||
|
||||
CLzmaDecoderState state; /* it's about 24-80 bytes structure, if int is 32-bit */
|
||||
unsigned char properties[LZMA_PROPERTIES_SIZE];
|
||||
|
||||
int res;
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
g_InBuffer.File = inFile;
|
||||
#endif
|
||||
|
||||
if (sizeof(UInt32) < 4)
|
||||
return PrintError(rs, "LZMA decoder needs correct UInt32");
|
||||
|
||||
#ifndef _LZMA_IN_CB
|
||||
{
|
||||
long length;
|
||||
fseek(inFile, 0, SEEK_END);
|
||||
length = ftell(inFile);
|
||||
fseek(inFile, 0, SEEK_SET);
|
||||
if ((long)(SizeT)length != length)
|
||||
return PrintError(rs, "Too big compressed stream");
|
||||
compressedSize = (SizeT)(length - (LZMA_PROPERTIES_SIZE + 8));
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Read LZMA properties for compressed stream */
|
||||
|
||||
if (!MyReadFileAndCheck(inFile, properties, sizeof(properties)))
|
||||
return PrintError(rs, kCantReadMessage);
|
||||
|
||||
/* Read uncompressed size */
|
||||
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < 8; i++)
|
||||
{
|
||||
unsigned char b;
|
||||
if (!MyReadFileAndCheck(inFile, &b, 1))
|
||||
return PrintError(rs, kCantReadMessage);
|
||||
if (b != 0xFF)
|
||||
waitEOS = 0;
|
||||
if (i < 4)
|
||||
outSize += (UInt32)(b) << (i * 8);
|
||||
else
|
||||
outSizeHigh += (UInt32)(b) << ((i - 4) * 8);
|
||||
}
|
||||
|
||||
#ifndef _LZMA_OUT_READ
|
||||
if (waitEOS)
|
||||
return PrintError(rs, "Stream with EOS marker is not supported");
|
||||
outSizeFull = (SizeT)outSize;
|
||||
if (sizeof(SizeT) >= 8)
|
||||
outSizeFull |= (((SizeT)outSizeHigh << 16) << 16);
|
||||
else if (outSizeHigh != 0 || (UInt32)(SizeT)outSize != outSize)
|
||||
return PrintError(rs, "Too big uncompressed stream");
|
||||
#endif
|
||||
}
|
||||
|
||||
/* Decode LZMA properties and allocate memory */
|
||||
|
||||
if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
|
||||
return PrintError(rs, "Incorrect stream properties");
|
||||
state.Probs = (CProb *)malloc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
if (state.Properties.DictionarySize == 0)
|
||||
state.Dictionary = 0;
|
||||
else
|
||||
state.Dictionary = (unsigned char *)malloc(state.Properties.DictionarySize);
|
||||
#else
|
||||
if (outSizeFull == 0)
|
||||
outStream = 0;
|
||||
else
|
||||
outStream = (unsigned char *)malloc(outSizeFull);
|
||||
#endif
|
||||
|
||||
#ifndef _LZMA_IN_CB
|
||||
if (compressedSize == 0)
|
||||
inStream = 0;
|
||||
else
|
||||
inStream = (unsigned char *)malloc(compressedSize);
|
||||
#endif
|
||||
|
||||
if (state.Probs == 0
|
||||
#ifdef _LZMA_OUT_READ
|
||||
|| (state.Dictionary == 0 && state.Properties.DictionarySize != 0)
|
||||
#else
|
||||
|| (outStream == 0 && outSizeFull != 0)
|
||||
#endif
|
||||
#ifndef _LZMA_IN_CB
|
||||
|| (inStream == 0 && compressedSize != 0)
|
||||
#endif
|
||||
)
|
||||
{
|
||||
free(state.Probs);
|
||||
#ifdef _LZMA_OUT_READ
|
||||
free(state.Dictionary);
|
||||
#else
|
||||
free(outStream);
|
||||
#endif
|
||||
#ifndef _LZMA_IN_CB
|
||||
free(inStream);
|
||||
#endif
|
||||
return PrintError(rs, kCantAllocateMessage);
|
||||
}
|
||||
|
||||
/* Decompress */
|
||||
|
||||
#ifdef _LZMA_IN_CB
|
||||
g_InBuffer.InCallback.Read = LzmaReadCompressed;
|
||||
#else
|
||||
if (!MyReadFileAndCheck(inFile, inStream, compressedSize))
|
||||
return PrintError(rs, kCantReadMessage);
|
||||
#endif
|
||||
|
||||
#ifdef _LZMA_OUT_READ
|
||||
{
|
||||
#ifndef _LZMA_IN_CB
|
||||
SizeT inAvail = compressedSize;
|
||||
const unsigned char *inBuffer = inStream;
|
||||
#endif
|
||||
LzmaDecoderInit(&state);
|
||||
do
|
||||
{
|
||||
#ifndef _LZMA_IN_CB
|
||||
SizeT inProcessed;
|
||||
#endif
|
||||
SizeT outProcessed;
|
||||
SizeT outAvail = kOutBufferSize;
|
||||
if (!waitEOS && outSizeHigh == 0 && outAvail > outSize)
|
||||
outAvail = (SizeT)outSize;
|
||||
res = LzmaDecode(&state,
|
||||
#ifdef _LZMA_IN_CB
|
||||
&g_InBuffer.InCallback,
|
||||
#else
|
||||
inBuffer, inAvail, &inProcessed,
|
||||
#endif
|
||||
g_OutBuffer, outAvail, &outProcessed);
|
||||
if (res != 0)
|
||||
{
|
||||
sprintf(rs + strlen(rs), "\nDecoding error = %d\n", res);
|
||||
res = 1;
|
||||
break;
|
||||
}
|
||||
#ifndef _LZMA_IN_CB
|
||||
inAvail -= inProcessed;
|
||||
inBuffer += inProcessed;
|
||||
#endif
|
||||
|
||||
if (outFile != 0)
|
||||
if (!MyWriteFileAndCheck(outFile, g_OutBuffer, (size_t)outProcessed))
|
||||
{
|
||||
PrintError(rs, kCantWriteMessage);
|
||||
res = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
if (outSize < outProcessed)
|
||||
outSizeHigh--;
|
||||
outSize -= (UInt32)outProcessed;
|
||||
outSize &= 0xFFFFFFFF;
|
||||
|
||||
if (outProcessed == 0)
|
||||
{
|
||||
if (!waitEOS && (outSize != 0 || outSizeHigh != 0))
|
||||
res = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
while ((outSize != 0 && outSizeHigh == 0) || outSizeHigh != 0 || waitEOS);
|
||||
}
|
||||
|
||||
#else
|
||||
{
|
||||
#ifndef _LZMA_IN_CB
|
||||
SizeT inProcessed;
|
||||
#endif
|
||||
SizeT outProcessed;
|
||||
res = LzmaDecode(&state,
|
||||
#ifdef _LZMA_IN_CB
|
||||
&g_InBuffer.InCallback,
|
||||
#else
|
||||
inStream, compressedSize, &inProcessed,
|
||||
#endif
|
||||
outStream, outSizeFull, &outProcessed);
|
||||
if (res != 0)
|
||||
{
|
||||
sprintf(rs + strlen(rs), "\nDecoding error = %d\n", res);
|
||||
res = 1;
|
||||
}
|
||||
else if (outFile != 0)
|
||||
{
|
||||
if (!MyWriteFileAndCheck(outFile, outStream, (size_t)outProcessed))
|
||||
{
|
||||
PrintError(rs, kCantWriteMessage);
|
||||
res = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
free(state.Probs);
|
||||
#ifdef _LZMA_OUT_READ
|
||||
free(state.Dictionary);
|
||||
#else
|
||||
free(outStream);
|
||||
#endif
|
||||
#ifndef _LZMA_IN_CB
|
||||
free(inStream);
|
||||
#endif
|
||||
return res;
|
||||
}
|
||||
|
||||
int main2(int numArgs, const char *args[], char *rs)
|
||||
{
|
||||
FILE *inFile = 0;
|
||||
FILE *outFile = 0;
|
||||
int res;
|
||||
|
||||
sprintf(rs + strlen(rs), "\nLZMA Decoder 4.26 Copyright (c) 1999-2005 Igor Pavlov 2005-08-05\n");
|
||||
if (numArgs < 2 || numArgs > 3)
|
||||
{
|
||||
sprintf(rs + strlen(rs), "\nUsage: lzmadec file.lzma [outFile]\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
inFile = fopen(args[1], "rb");
|
||||
if (inFile == 0)
|
||||
return PrintError(rs, "Can not open input file");
|
||||
|
||||
if (numArgs > 2)
|
||||
{
|
||||
outFile = fopen(args[2], "wb+");
|
||||
if (outFile == 0)
|
||||
return PrintError(rs, "Can not open output file");
|
||||
}
|
||||
|
||||
res = main3(inFile, outFile, rs);
|
||||
|
||||
if (outFile != 0)
|
||||
fclose(outFile);
|
||||
fclose(inFile);
|
||||
return res;
|
||||
}
|
||||
|
||||
int main(int numArgs, const char *args[])
|
||||
{
|
||||
char rs[800] = { 0 };
|
||||
int res = main2(numArgs, args, rs);
|
||||
printf(rs);
|
||||
return res;
|
||||
}
|
45
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaTypes.h
Normal file
45
lib/physfs-2.0.3/lzma/C/Compress/Lzma/LzmaTypes.h
Normal file
|
@ -0,0 +1,45 @@
|
|||
/*
|
||||
LzmaTypes.h
|
||||
|
||||
Types for LZMA Decoder
|
||||
|
||||
This file written and distributed to public domain by Igor Pavlov.
|
||||
This file is part of LZMA SDK 4.40 (2006-05-01)
|
||||
*/
|
||||
|
||||
#ifndef __LZMATYPES_H
|
||||
#define __LZMATYPES_H
|
||||
|
||||
#ifndef _7ZIP_BYTE_DEFINED
|
||||
#define _7ZIP_BYTE_DEFINED
|
||||
typedef unsigned char Byte;
|
||||
#endif
|
||||
|
||||
#ifndef _7ZIP_UINT16_DEFINED
|
||||
#define _7ZIP_UINT16_DEFINED
|
||||
typedef unsigned short UInt16;
|
||||
#endif
|
||||
|
||||
#ifndef _7ZIP_UINT32_DEFINED
|
||||
#define _7ZIP_UINT32_DEFINED
|
||||
#ifdef _LZMA_UINT32_IS_ULONG
|
||||
typedef unsigned long UInt32;
|
||||
#else
|
||||
typedef unsigned int UInt32;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* #define _LZMA_NO_SYSTEM_SIZE_T */
|
||||
/* You can use it, if you don't want <stddef.h> */
|
||||
|
||||
#ifndef _7ZIP_SIZET_DEFINED
|
||||
#define _7ZIP_SIZET_DEFINED
|
||||
#ifdef _LZMA_NO_SYSTEM_SIZE_T
|
||||
typedef UInt32 SizeT;
|
||||
#else
|
||||
#include <stddef.h>
|
||||
typedef size_t SizeT;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#endif
|
Loading…
Add table
Add a link
Reference in a new issue