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Go to the source code of this file.
Defines | |
| #define | Align (SpecPos + kNumFullDistances - kEndPosModelIndex) |
| #define | GET_BIT(p, i) GET_BIT2(p, i, ; , ;) |
| #define | GET_BIT2(p, i, A0, A1) |
| #define | GET_BIT2_CHECK(p, i, A0, A1) |
| #define | GET_BIT_CHECK(p, i) GET_BIT2_CHECK(p, i, ; , ;) |
| #define | IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) |
| #define | IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) |
| #define | IsMatch 0 |
| #define | IsRep (IsMatch + (kNumStates << kNumPosBitsMax)) |
| #define | IsRep0Long (IsRepG2 + kNumStates) |
| #define | IsRepG0 (IsRep + kNumStates) |
| #define | IsRepG1 (IsRepG0 + kNumStates) |
| #define | IsRepG2 (IsRepG1 + kNumStates) |
| #define | kAlignTableSize (1 << kNumAlignBits) |
| #define | kBitModelTotal (1 << kNumBitModelTotalBits) |
| #define | kEndPosModelIndex 14 |
| #define | kLenNumHighBits 8 |
| #define | kLenNumHighSymbols (1 << kLenNumHighBits) |
| #define | kLenNumLowBits 3 |
| #define | kLenNumLowSymbols (1 << kLenNumLowBits) |
| #define | kLenNumMidBits 3 |
| #define | kLenNumMidSymbols (1 << kLenNumMidBits) |
| #define | kMatchMinLen 2 |
| #define | kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols) |
| #define | kNumAlignBits 4 |
| #define | kNumBitModelTotalBits 11 |
| #define | kNumFullDistances (1 << (kEndPosModelIndex >> 1)) |
| #define | kNumLenProbs (LenHigh + kLenNumHighSymbols) |
| #define | kNumLenToPosStates 4 |
| #define | kNumLitStates 7 |
| #define | kNumMoveBits 5 |
| #define | kNumPosBitsMax 4 |
| #define | kNumPosSlotBits 6 |
| #define | kNumPosStatesMax (1 << kNumPosBitsMax) |
| #define | kNumStates 12 |
| #define | kNumTopBits 24 |
| #define | kStartPosModelIndex 4 |
| #define | kTopValue ((UInt32)1 << kNumTopBits) |
| #define | LenChoice 0 |
| #define | LenChoice2 (LenChoice + 1) |
| #define | LenCoder (Align + kAlignTableSize) |
| #define | LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits)) |
| #define | LenLow (LenChoice2 + 1) |
| #define | LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits)) |
| #define | Literal (RepLenCoder + kNumLenProbs) |
| #define | LZMA_BASE_SIZE 1846 |
| #define | LZMA_DIC_MIN (1 << 12) |
| #define | LZMA_LIT_SIZE 768 |
| #define | LzmaProps_GetNumProbs(p) ((UInt32)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp))) |
| #define | NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); } |
| #define | NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); } |
| #define | PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax)) |
| #define | RC_INIT_SIZE 5 |
| #define | RepLenCoder (LenCoder + kNumLenProbs) |
| #define | SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits)) |
| #define | TREE_6_DECODE(probs, i) |
| #define | TREE_DECODE(probs, limit, i) { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; } |
| #define | TREE_DECODE_CHECK(probs, limit, i) { i = 1; do { GET_BIT_CHECK(probs + i, i) } while (i < limit); i -= limit; } |
| #define | TREE_GET_BIT(probs, i) { GET_BIT((probs + i), i); } |
| #define | UPDATE_0(p) range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits)); |
| #define | UPDATE_0_CHECK range = bound; |
| #define | UPDATE_1(p) range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits)); |
| #define | UPDATE_1_CHECK range -= bound; code -= bound; |
Enumerations | |
| enum | ELzmaDummy { DUMMY_ERROR, DUMMY_LIT, DUMMY_MATCH, DUMMY_REP } |
Functions | |
| SRes | LzmaDec_Allocate (CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) |
| SRes | LzmaDec_AllocateProbs (CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) |
| static SRes | LzmaDec_AllocateProbs2 (CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc) |
| static int MY_FAST_CALL | LzmaDec_DecodeReal (CLzmaDec *p, SizeT limit, const Byte *bufLimit) |
| static int MY_FAST_CALL | LzmaDec_DecodeReal2 (CLzmaDec *p, SizeT limit, const Byte *bufLimit) |
| SRes | LzmaDec_DecodeToBuf (CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) |
| SRes | LzmaDec_DecodeToDic (CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) |
| void | LzmaDec_Free (CLzmaDec *p, ISzAlloc *alloc) |
| static void | LzmaDec_FreeDict (CLzmaDec *p, ISzAlloc *alloc) |
| void | LzmaDec_FreeProbs (CLzmaDec *p, ISzAlloc *alloc) |
| void | LzmaDec_Init (CLzmaDec *p) |
| void | LzmaDec_InitDicAndState (CLzmaDec *p, Bool initDic, Bool initState) |
| static void | LzmaDec_InitRc (CLzmaDec *p, const Byte *data) |
| static void | LzmaDec_InitStateReal (CLzmaDec *p) |
| static ELzmaDummy | LzmaDec_TryDummy (const CLzmaDec *p, const Byte *buf, SizeT inSize) |
| static void MY_FAST_CALL | LzmaDec_WriteRem (CLzmaDec *p, SizeT limit) |
| SRes | LzmaDecode (Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode, ELzmaStatus *status, ISzAlloc *alloc) |
| SRes | LzmaProps_Decode (CLzmaProps *p, const Byte *data, unsigned size) |
| #define Align (SpecPos + kNumFullDistances - kEndPosModelIndex) |
Definition at line 102 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
Definition at line 25 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal().
| #define GET_BIT2 | ( | p, | |
| i, | |||
| A0, | |||
| A1 | |||
| ) |
| #define GET_BIT2_CHECK | ( | p, | |
| i, | |||
| A0, | |||
| A1 | |||
| ) |
IF_BIT_0_CHECK(p) \ { UPDATE_0_CHECK; i = (i + i); A0; } else \ { UPDATE_1_CHECK; i = (i + i) + 1; A1; }
Definition at line 52 of file LzmaDec.cc.
Referenced by LzmaDec_TryDummy().
Definition at line 55 of file LzmaDec.cc.
Referenced by LzmaDec_TryDummy().
| #define IF_BIT_0 | ( | p | ) | ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) |
Definition at line 19 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal().
| #define IF_BIT_0_CHECK | ( | p | ) | ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound) |
Definition at line 49 of file LzmaDec.cc.
Referenced by LzmaDec_TryDummy().
| #define IsMatch 0 |
Definition at line 94 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define IsRep (IsMatch + (kNumStates << kNumPosBitsMax)) |
Definition at line 95 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define IsRep0Long (IsRepG2 + kNumStates) |
Definition at line 99 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define IsRepG0 (IsRep + kNumStates) |
Definition at line 96 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define IsRepG1 (IsRepG0 + kNumStates) |
Definition at line 97 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define IsRepG2 (IsRepG1 + kNumStates) |
Definition at line 98 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kAlignTableSize (1 << kNumAlignBits) |
Definition at line 89 of file LzmaDec.cc.
| #define kBitModelTotal (1 << kNumBitModelTotalBits) |
Definition at line 12 of file LzmaDec.cc.
Referenced by LzmaDec_InitStateReal().
| #define kEndPosModelIndex 14 |
Definition at line 82 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kLenNumHighBits 8 |
Definition at line 67 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kLenNumHighSymbols (1 << kLenNumHighBits) |
Definition at line 68 of file LzmaDec.cc.
| #define kLenNumLowBits 3 |
Definition at line 63 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kLenNumLowSymbols (1 << kLenNumLowBits) |
Definition at line 64 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kLenNumMidBits 3 |
Definition at line 65 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kLenNumMidSymbols (1 << kLenNumMidBits) |
Definition at line 66 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kMatchMinLen 2 |
Definition at line 91 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal().
| #define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols) |
Definition at line 92 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), LzmaDec_DecodeReal2(), LzmaDec_DecodeToDic(), and LzmaDec_WriteRem().
| #define kNumAlignBits 4 |
Definition at line 88 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kNumBitModelTotalBits 11 |
Definition at line 11 of file LzmaDec.cc.
| #define kNumFullDistances (1 << (kEndPosModelIndex >> 1)) |
Definition at line 83 of file LzmaDec.cc.
| #define kNumLenProbs (LenHigh + kLenNumHighSymbols) |
Definition at line 75 of file LzmaDec.cc.
| #define kNumLenToPosStates 4 |
Definition at line 86 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kNumLitStates 7 |
Definition at line 79 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kNumMoveBits 5 |
Definition at line 13 of file LzmaDec.cc.
| #define kNumPosBitsMax 4 |
Definition at line 60 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kNumPosSlotBits 6 |
Definition at line 85 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kNumPosStatesMax (1 << kNumPosBitsMax) |
Definition at line 61 of file LzmaDec.cc.
| #define kNumStates 12 |
Definition at line 78 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kNumTopBits 24 |
Definition at line 8 of file LzmaDec.cc.
| #define kStartPosModelIndex 4 |
Definition at line 81 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define kTopValue ((UInt32)1 << kNumTopBits) |
Definition at line 9 of file LzmaDec.cc.
| #define LenChoice 0 |
Definition at line 70 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define LenChoice2 (LenChoice + 1) |
Definition at line 71 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define LenCoder (Align + kAlignTableSize) |
Definition at line 103 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits)) |
Definition at line 74 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define LenLow (LenChoice2 + 1) |
Definition at line 72 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits)) |
Definition at line 73 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define Literal (RepLenCoder + kNumLenProbs) |
Definition at line 105 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), LzmaDec_InitStateReal(), and LzmaDec_TryDummy().
| #define LZMA_BASE_SIZE 1846 |
Definition at line 107 of file LzmaDec.cc.
| #define LZMA_DIC_MIN (1 << 12) |
Definition at line 116 of file LzmaDec.cc.
Referenced by LzmaProps_Decode().
| #define LZMA_LIT_SIZE 768 |
Definition at line 108 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), LzmaDec_InitStateReal(), and LzmaDec_TryDummy().
| #define LzmaProps_GetNumProbs | ( | p | ) | ((UInt32)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp))) |
Definition at line 110 of file LzmaDec.cc.
Referenced by LzmaDec_AllocateProbs2().
| #define NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); } |
Definition at line 17 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal().
| #define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); } |
Definition at line 47 of file LzmaDec.cc.
Referenced by LzmaDec_TryDummy().
| #define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax)) |
Definition at line 100 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define RC_INIT_SIZE 5 |
Definition at line 15 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeToDic(), and LzmaDecode().
| #define RepLenCoder (LenCoder + kNumLenProbs) |
Definition at line 104 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits)) |
Definition at line 101 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal(), and LzmaDec_TryDummy().
| #define TREE_6_DECODE | ( | probs, | |
| i | |||
| ) |
{ i = 1; \
TREE_GET_BIT(probs, i); \
TREE_GET_BIT(probs, i); \
TREE_GET_BIT(probs, i); \
TREE_GET_BIT(probs, i); \
TREE_GET_BIT(probs, i); \
TREE_GET_BIT(probs, i); \
i -= 0x40; }
Definition at line 36 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal().
| #define TREE_DECODE | ( | probs, | |
| limit, | |||
| i | |||
| ) | { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; } |
Definition at line 28 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal().
| #define TREE_DECODE_CHECK | ( | probs, | |
| limit, | |||
| i | |||
| ) | { i = 1; do { GET_BIT_CHECK(probs + i, i) } while (i < limit); i -= limit; } |
Definition at line 56 of file LzmaDec.cc.
Referenced by LzmaDec_TryDummy().
Definition at line 27 of file LzmaDec.cc.
| #define UPDATE_0 | ( | p | ) | range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits)); |
Definition at line 20 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal().
| #define UPDATE_0_CHECK range = bound; |
Definition at line 50 of file LzmaDec.cc.
Referenced by LzmaDec_TryDummy().
| #define UPDATE_1 | ( | p | ) | range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits)); |
Definition at line 21 of file LzmaDec.cc.
Referenced by LzmaDec_DecodeReal().
| #define UPDATE_1_CHECK range -= bound; code -= bound; |
Definition at line 51 of file LzmaDec.cc.
Referenced by LzmaDec_TryDummy().
| enum ELzmaDummy |
Definition at line 479 of file LzmaDec.cc.
{
DUMMY_ERROR, /* unexpected end of input stream */
DUMMY_LIT,
DUMMY_MATCH,
DUMMY_REP
} ELzmaDummy;
Definition at line 947 of file LzmaDec.cc.
References ISzAlloc::Alloc, CLzmaDec::dic, CLzmaDec::dicBufSize, _CLzmaProps::dicSize, LzmaDec_AllocateProbs2(), LzmaDec_FreeDict(), LzmaDec_FreeProbs(), LzmaProps_Decode(), CLzmaDec::prop, RINOK, SZ_ERROR_MEM, and SZ_OK.
Referenced by LzmaFile::Open().
{
CLzmaProps propNew;
SizeT dicBufSize;
RINOK(LzmaProps_Decode(&propNew, props, propsSize));
RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));
dicBufSize = propNew.dicSize;
if (p->dic == 0 || dicBufSize != p->dicBufSize)
{
LzmaDec_FreeDict(p, alloc);
p->dic = (Byte *)alloc->Alloc(alloc, dicBufSize);
if (p->dic == 0)
{
LzmaDec_FreeProbs(p, alloc);
return SZ_ERROR_MEM;
}
}
p->dicBufSize = dicBufSize;
p->prop = propNew;
return SZ_OK;
}
| SRes LzmaDec_AllocateProbs | ( | CLzmaDec * | p, |
| const Byte * | props, | ||
| unsigned | propsSize, | ||
| ISzAlloc * | alloc | ||
| ) |
Definition at line 938 of file LzmaDec.cc.
References LzmaDec_AllocateProbs2(), LzmaProps_Decode(), CLzmaDec::prop, RINOK, and SZ_OK.
Referenced by LzmaDecode().
{
CLzmaProps propNew;
RINOK(LzmaProps_Decode(&propNew, props, propsSize));
RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));
p->prop = propNew;
return SZ_OK;
}
| static SRes LzmaDec_AllocateProbs2 | ( | CLzmaDec * | p, |
| const CLzmaProps * | propNew, | ||
| ISzAlloc * | alloc | ||
| ) | [static] |
Definition at line 924 of file LzmaDec.cc.
References ISzAlloc::Alloc, CLzmaProb, LzmaDec_FreeProbs(), LzmaProps_GetNumProbs, CLzmaDec::numProbs, CLzmaDec::probs, SZ_ERROR_MEM, and SZ_OK.
Referenced by LzmaDec_Allocate(), and LzmaDec_AllocateProbs().
{
UInt32 numProbs = LzmaProps_GetNumProbs(propNew);
if (p->probs == 0 || numProbs != p->numProbs)
{
LzmaDec_FreeProbs(p, alloc);
p->probs = (CLzmaProb *)alloc->Alloc(alloc, numProbs * sizeof(CLzmaProb));
p->numProbs = numProbs;
if (p->probs == 0)
return SZ_ERROR_MEM;
}
return SZ_OK;
}
| static int MY_FAST_CALL LzmaDec_DecodeReal | ( | CLzmaDec * | p, |
| SizeT | limit, | ||
| const Byte * | bufLimit | ||
| ) | [static] |
Definition at line 131 of file LzmaDec.cc.
References Align, CLzmaDec::buf, CLzmaDec::checkDicSize, CLzmaProb, CLzmaDec::code, alignCSCRings::dest, CLzmaDec::dic, CLzmaDec::dicBufSize, CLzmaDec::dicPos, GET_BIT, GET_BIT2, i, IF_BIT_0, IsMatch, IsRep, IsRep0Long, IsRepG0, IsRepG1, IsRepG2, kEndPosModelIndex, kLenNumHighBits, kLenNumLowBits, kLenNumLowSymbols, kLenNumMidBits, kLenNumMidSymbols, kMatchMinLen, kMatchSpecLenStart, kNumAlignBits, kNumLenToPosStates, kNumLitStates, kNumPosBitsMax, kNumPosSlotBits, kNumStates, kStartPosModelIndex, _CLzmaProps::lc, LenChoice, LenChoice2, LenCoder, LenHigh, LenLow, LenMid, MessageLogger_cff::limit, Literal, _CLzmaProps::lp, LZMA_LIT_SIZE, NORMALIZE, evf::evtn::offset(), _CLzmaProps::pb, pos, PosSlot, CLzmaDec::probs, CLzmaDec::processedPos, CLzmaDec::prop, CLzmaDec::range, CLzmaDec::remainLen, RepLenCoder, CLzmaDec::reps, SpecPos, alcazmumu_cfi::src, CLzmaDec::state, evf::utils::state, SZ_ERROR_DATA, SZ_OK, lumiQTWidget::t, TREE_6_DECODE, TREE_DECODE, UPDATE_0, and UPDATE_1.
Referenced by LzmaDec_DecodeReal2().
{
CLzmaProb *probs = p->probs;
unsigned state = p->state;
UInt32 rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3];
unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1;
unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1;
unsigned lc = p->prop.lc;
Byte *dic = p->dic;
SizeT dicBufSize = p->dicBufSize;
SizeT dicPos = p->dicPos;
UInt32 processedPos = p->processedPos;
UInt32 checkDicSize = p->checkDicSize;
unsigned len = 0;
const Byte *buf = p->buf;
UInt32 range = p->range;
UInt32 code = p->code;
do
{
CLzmaProb *prob;
UInt32 bound;
unsigned ttt;
unsigned posState = processedPos & pbMask;
prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
IF_BIT_0(prob)
{
unsigned symbol;
UPDATE_0(prob);
prob = probs + Literal;
if (checkDicSize != 0 || processedPos != 0)
prob += (LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) +
(dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc))));
if (state < kNumLitStates)
{
state -= (state < 4) ? state : 3;
symbol = 1;
do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100);
}
else
{
unsigned matchByte = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
unsigned offs = 0x100;
state -= (state < 10) ? 3 : 6;
symbol = 1;
do
{
unsigned bit;
CLzmaProb *probLit;
matchByte <<= 1;
bit = (matchByte & offs);
probLit = prob + offs + bit + symbol;
GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit)
}
while (symbol < 0x100);
}
dic[dicPos++] = (Byte)symbol;
processedPos++;
continue;
}
else
{
UPDATE_1(prob);
prob = probs + IsRep + state;
IF_BIT_0(prob)
{
UPDATE_0(prob);
state += kNumStates;
prob = probs + LenCoder;
}
else
{
UPDATE_1(prob);
if (checkDicSize == 0 && processedPos == 0)
return SZ_ERROR_DATA;
prob = probs + IsRepG0 + state;
IF_BIT_0(prob)
{
UPDATE_0(prob);
prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
IF_BIT_0(prob)
{
UPDATE_0(prob);
dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
dicPos++;
processedPos++;
state = state < kNumLitStates ? 9 : 11;
continue;
}
UPDATE_1(prob);
}
else
{
UInt32 distance;
UPDATE_1(prob);
prob = probs + IsRepG1 + state;
IF_BIT_0(prob)
{
UPDATE_0(prob);
distance = rep1;
}
else
{
UPDATE_1(prob);
prob = probs + IsRepG2 + state;
IF_BIT_0(prob)
{
UPDATE_0(prob);
distance = rep2;
}
else
{
UPDATE_1(prob);
distance = rep3;
rep3 = rep2;
}
rep2 = rep1;
}
rep1 = rep0;
rep0 = distance;
}
state = state < kNumLitStates ? 8 : 11;
prob = probs + RepLenCoder;
}
{
unsigned limit, offset;
CLzmaProb *probLen = prob + LenChoice;
IF_BIT_0(probLen)
{
UPDATE_0(probLen);
probLen = prob + LenLow + (posState << kLenNumLowBits);
offset = 0;
limit = (1 << kLenNumLowBits);
}
else
{
UPDATE_1(probLen);
probLen = prob + LenChoice2;
IF_BIT_0(probLen)
{
UPDATE_0(probLen);
probLen = prob + LenMid + (posState << kLenNumMidBits);
offset = kLenNumLowSymbols;
limit = (1 << kLenNumMidBits);
}
else
{
UPDATE_1(probLen);
probLen = prob + LenHigh;
offset = kLenNumLowSymbols + kLenNumMidSymbols;
limit = (1 << kLenNumHighBits);
}
}
TREE_DECODE(probLen, limit, len);
len += offset;
}
if (state >= kNumStates)
{
UInt32 distance;
prob = probs + PosSlot +
((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << kNumPosSlotBits);
TREE_6_DECODE(prob, distance);
if (distance >= kStartPosModelIndex)
{
unsigned posSlot = (unsigned)distance;
int numDirectBits = (int)(((distance >> 1) - 1));
distance = (2 | (distance & 1));
if (posSlot < kEndPosModelIndex)
{
distance <<= numDirectBits;
prob = probs + SpecPos + distance - posSlot - 1;
{
UInt32 mask = 1;
unsigned i = 1;
do
{
GET_BIT2(prob + i, i, ; , distance |= mask);
mask <<= 1;
}
while (--numDirectBits != 0);
}
}
else
{
numDirectBits -= kNumAlignBits;
do
{
NORMALIZE
range >>= 1;
{
UInt32 t;
code -= range;
t = (0 - ((UInt32)code >> 31)); /* (UInt32)((Int32)code >> 31) */
distance = (distance << 1) + (t + 1);
code += range & t;
}
/*
distance <<= 1;
if (code >= range)
{
code -= range;
distance |= 1;
}
*/
}
while (--numDirectBits != 0);
prob = probs + Align;
distance <<= kNumAlignBits;
{
unsigned i = 1;
GET_BIT2(prob + i, i, ; , distance |= 1);
GET_BIT2(prob + i, i, ; , distance |= 2);
GET_BIT2(prob + i, i, ; , distance |= 4);
GET_BIT2(prob + i, i, ; , distance |= 8);
}
if (distance == (UInt32)0xFFFFFFFF)
{
len += kMatchSpecLenStart;
state -= kNumStates;
break;
}
}
}
rep3 = rep2;
rep2 = rep1;
rep1 = rep0;
rep0 = distance + 1;
if (checkDicSize == 0)
{
if (distance >= processedPos)
return SZ_ERROR_DATA;
}
else if (distance >= checkDicSize)
return SZ_ERROR_DATA;
state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3;
}
len += kMatchMinLen;
if (limit == dicPos)
return SZ_ERROR_DATA;
{
SizeT rem = limit - dicPos;
unsigned curLen = ((rem < len) ? (unsigned)rem : len);
SizeT pos = (dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0);
processedPos += curLen;
len -= curLen;
if (pos + curLen <= dicBufSize)
{
Byte *dest = dic + dicPos;
ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos;
const Byte *lim = dest + curLen;
dicPos += curLen;
do
*(dest) = (Byte)*(dest + src);
while (++dest != lim);
}
else
{
do
{
dic[dicPos++] = dic[pos];
if (++pos == dicBufSize)
pos = 0;
}
while (--curLen != 0);
}
}
}
}
while (dicPos < limit && buf < bufLimit);
NORMALIZE;
p->buf = buf;
p->range = range;
p->code = code;
p->remainLen = len;
p->dicPos = dicPos;
p->processedPos = processedPos;
p->reps[0] = rep0;
p->reps[1] = rep1;
p->reps[2] = rep2;
p->reps[3] = rep3;
p->state = state;
return SZ_OK;
}
| static int MY_FAST_CALL LzmaDec_DecodeReal2 | ( | CLzmaDec * | p, |
| SizeT | limit, | ||
| const Byte * | bufLimit | ||
| ) | [static] |
Definition at line 454 of file LzmaDec.cc.
References CLzmaDec::buf, CLzmaDec::checkDicSize, CLzmaDec::dicPos, _CLzmaProps::dicSize, kMatchSpecLenStart, MessageLogger_cff::limit, LzmaDec_DecodeReal(), LzmaDec_WriteRem(), CLzmaDec::processedPos, CLzmaDec::prop, CLzmaDec::remainLen, and RINOK.
Referenced by LzmaDec_DecodeToDic().
{
do
{
SizeT limit2 = limit;
if (p->checkDicSize == 0)
{
UInt32 rem = p->prop.dicSize - p->processedPos;
if (limit - p->dicPos > rem)
limit2 = p->dicPos + rem;
}
RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit));
if (p->processedPos >= p->prop.dicSize)
p->checkDicSize = p->prop.dicSize;
LzmaDec_WriteRem(p, limit);
}
while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart);
if (p->remainLen > kMatchSpecLenStart)
{
p->remainLen = kMatchSpecLenStart;
}
return 0;
}
| SRes LzmaDec_DecodeToBuf | ( | CLzmaDec * | p, |
| Byte * | dest, | ||
| SizeT * | destLen, | ||
| const Byte * | src, | ||
| SizeT * | srcLen, | ||
| ELzmaFinishMode | finishMode, | ||
| ELzmaStatus * | status | ||
| ) |
Definition at line 840 of file LzmaDec.cc.
References CLzmaDec::dic, CLzmaDec::dicBufSize, CLzmaDec::dicPos, LZMA_FINISH_ANY, LzmaDec_DecodeToDic(), and SZ_OK.
Referenced by LzmaFile::DecodeAll(), and LzmaFile::DecodeBuffer().
{
SizeT outSize = *destLen;
SizeT inSize = *srcLen;
*srcLen = *destLen = 0;
for (;;)
{
SizeT inSizeCur = inSize, outSizeCur, dicPos;
ELzmaFinishMode curFinishMode;
SRes res;
if (p->dicPos == p->dicBufSize)
p->dicPos = 0;
dicPos = p->dicPos;
if (outSize > p->dicBufSize - dicPos)
{
outSizeCur = p->dicBufSize;
curFinishMode = LZMA_FINISH_ANY;
}
else
{
outSizeCur = dicPos + outSize;
curFinishMode = finishMode;
}
res = LzmaDec_DecodeToDic(p, outSizeCur, src, &inSizeCur, curFinishMode, status);
src += inSizeCur;
inSize -= inSizeCur;
*srcLen += inSizeCur;
outSizeCur = p->dicPos - dicPos;
memcpy(dest, p->dic + dicPos, outSizeCur);
dest += outSizeCur;
outSize -= outSizeCur;
*destLen += outSizeCur;
if (res != 0)
return res;
if (outSizeCur == 0 || outSize == 0)
return SZ_OK;
}
}
| SRes LzmaDec_DecodeToDic | ( | CLzmaDec * | p, |
| SizeT | dicLimit, | ||
| const Byte * | src, | ||
| SizeT * | srcLen, | ||
| ELzmaFinishMode | finishMode, | ||
| ELzmaStatus * | status | ||
| ) |
Definition at line 719 of file LzmaDec.cc.
References CLzmaDec::buf, CLzmaDec::code, CLzmaDec::dicPos, DUMMY_ERROR, DUMMY_MATCH, if(), kMatchSpecLenStart, LZMA_FINISH_ANY, LZMA_REQUIRED_INPUT_MAX, LZMA_STATUS_FINISHED_WITH_MARK, LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK, LZMA_STATUS_NEEDS_MORE_INPUT, LZMA_STATUS_NOT_FINISHED, LZMA_STATUS_NOT_SPECIFIED, LzmaDec_DecodeReal2(), LzmaDec_InitRc(), LzmaDec_InitStateReal(), LzmaDec_TryDummy(), LzmaDec_WriteRem(), CLzmaDec::needFlush, CLzmaDec::needInitState, RC_INIT_SIZE, CLzmaDec::remainLen, alcazmumu_cfi::src, SZ_ERROR_DATA, SZ_OK, CLzmaDec::tempBuf, and CLzmaDec::tempBufSize.
Referenced by LzmaDec_DecodeToBuf(), and LzmaDecode().
{
SizeT inSize = *srcLen;
(*srcLen) = 0;
LzmaDec_WriteRem(p, dicLimit);
*status = LZMA_STATUS_NOT_SPECIFIED;
while (p->remainLen != kMatchSpecLenStart)
{
int checkEndMarkNow;
if (p->needFlush != 0)
{
for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--)
p->tempBuf[p->tempBufSize++] = *src++;
if (p->tempBufSize < RC_INIT_SIZE)
{
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
if (p->tempBuf[0] != 0)
return SZ_ERROR_DATA;
LzmaDec_InitRc(p, p->tempBuf);
p->tempBufSize = 0;
}
checkEndMarkNow = 0;
if (p->dicPos >= dicLimit)
{
if (p->remainLen == 0 && p->code == 0)
{
*status = LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK;
return SZ_OK;
}
if (finishMode == LZMA_FINISH_ANY)
{
*status = LZMA_STATUS_NOT_FINISHED;
return SZ_OK;
}
if (p->remainLen != 0)
{
*status = LZMA_STATUS_NOT_FINISHED;
return SZ_ERROR_DATA;
}
checkEndMarkNow = 1;
}
if (p->needInitState)
LzmaDec_InitStateReal(p);
if (p->tempBufSize == 0)
{
SizeT processed;
const Byte *bufLimit;
if (inSize < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
{
int dummyRes = LzmaDec_TryDummy(p, src, inSize);
if (dummyRes == DUMMY_ERROR)
{
memcpy(p->tempBuf, src, inSize);
p->tempBufSize = (unsigned)inSize;
(*srcLen) += inSize;
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
if (checkEndMarkNow && dummyRes != DUMMY_MATCH)
{
*status = LZMA_STATUS_NOT_FINISHED;
return SZ_ERROR_DATA;
}
bufLimit = src;
}
else
bufLimit = src + inSize - LZMA_REQUIRED_INPUT_MAX;
p->buf = src;
if (LzmaDec_DecodeReal2(p, dicLimit, bufLimit) != 0)
return SZ_ERROR_DATA;
processed = (SizeT)(p->buf - src);
(*srcLen) += processed;
src += processed;
inSize -= processed;
}
else
{
unsigned rem = p->tempBufSize, lookAhead = 0;
while (rem < LZMA_REQUIRED_INPUT_MAX && lookAhead < inSize)
p->tempBuf[rem++] = src[lookAhead++];
p->tempBufSize = rem;
if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
{
int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem);
if (dummyRes == DUMMY_ERROR)
{
(*srcLen) += lookAhead;
*status = LZMA_STATUS_NEEDS_MORE_INPUT;
return SZ_OK;
}
if (checkEndMarkNow && dummyRes != DUMMY_MATCH)
{
*status = LZMA_STATUS_NOT_FINISHED;
return SZ_ERROR_DATA;
}
}
p->buf = p->tempBuf;
if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0)
return SZ_ERROR_DATA;
lookAhead -= (rem - (unsigned)(p->buf - p->tempBuf));
(*srcLen) += lookAhead;
src += lookAhead;
inSize -= lookAhead;
p->tempBufSize = 0;
}
}
if (p->code == 0)
*status = LZMA_STATUS_FINISHED_WITH_MARK;
return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA;
}
Definition at line 892 of file LzmaDec.cc.
References LzmaDec_FreeDict(), and LzmaDec_FreeProbs().
Referenced by LzmaFile::Close().
{
LzmaDec_FreeProbs(p, alloc);
LzmaDec_FreeDict(p, alloc);
}
Definition at line 886 of file LzmaDec.cc.
References CLzmaDec::dic, and ISzAlloc::Free.
Referenced by LzmaDec_Allocate(), and LzmaDec_Free().
Definition at line 880 of file LzmaDec.cc.
References ISzAlloc::Free, and CLzmaDec::probs.
Referenced by LzmaDec_Allocate(), LzmaDec_AllocateProbs2(), LzmaDec_Free(), and LzmaDecode().
| void LzmaDec_Init | ( | CLzmaDec * | p | ) |
Definition at line 701 of file LzmaDec.cc.
References CLzmaDec::dicPos, LzmaDec_InitDicAndState(), and True.
Referenced by LzmaDecode(), and LzmaFile::Open().
{
p->dicPos = 0;
LzmaDec_InitDicAndState(p, True, True);
}
Definition at line 685 of file LzmaDec.cc.
References CLzmaDec::checkDicSize, CLzmaDec::needFlush, CLzmaDec::needInitState, CLzmaDec::processedPos, CLzmaDec::remainLen, and CLzmaDec::tempBufSize.
Referenced by LzmaDec_Init().
{
p->needFlush = 1;
p->remainLen = 0;
p->tempBufSize = 0;
if (initDic)
{
p->processedPos = 0;
p->checkDicSize = 0;
p->needInitState = 1;
}
if (initState)
p->needInitState = 1;
}
Definition at line 678 of file LzmaDec.cc.
References CLzmaDec::code, CLzmaDec::needFlush, and CLzmaDec::range.
Referenced by LzmaDec_DecodeToDic().
| static void LzmaDec_InitStateReal | ( | CLzmaDec * | p | ) | [static] |
Definition at line 707 of file LzmaDec.cc.
References CLzmaProb, i, kBitModelTotal, _CLzmaProps::lc, Literal, _CLzmaProps::lp, LZMA_LIT_SIZE, CLzmaDec::needInitState, CLzmaDec::probs, CLzmaDec::prop, CLzmaDec::reps, and CLzmaDec::state.
Referenced by LzmaDec_DecodeToDic().
| static ELzmaDummy LzmaDec_TryDummy | ( | const CLzmaDec * | p, |
| const Byte * | buf, | ||
| SizeT | inSize | ||
| ) | [static] |
Definition at line 487 of file LzmaDec.cc.
References Align, CLzmaDec::checkDicSize, CLzmaProb, CLzmaDec::code, CLzmaDec::dic, CLzmaDec::dicBufSize, CLzmaDec::dicPos, DUMMY_LIT, DUMMY_MATCH, DUMMY_REP, GET_BIT2_CHECK, GET_BIT_CHECK, i, IF_BIT_0_CHECK, IsMatch, IsRep, IsRep0Long, IsRepG0, IsRepG1, IsRepG2, kEndPosModelIndex, kLenNumHighBits, kLenNumLowBits, kLenNumLowSymbols, kLenNumMidBits, kLenNumMidSymbols, kNumAlignBits, kNumLenToPosStates, kNumLitStates, kNumPosBitsMax, kNumPosSlotBits, kNumStates, kStartPosModelIndex, _CLzmaProps::lc, LenChoice, LenChoice2, LenCoder, LenHigh, LenLow, LenMid, MessageLogger_cff::limit, Literal, _CLzmaProps::lp, LZMA_LIT_SIZE, NORMALIZE_CHECK, evf::evtn::offset(), _CLzmaProps::pb, PosSlot, CLzmaDec::probs, CLzmaDec::processedPos, CLzmaDec::prop, CLzmaDec::range, RepLenCoder, CLzmaDec::reps, SpecPos, CLzmaDec::state, evf::utils::state, TREE_DECODE_CHECK, UPDATE_0_CHECK, and UPDATE_1_CHECK.
Referenced by LzmaDec_DecodeToDic().
{
UInt32 range = p->range;
UInt32 code = p->code;
const Byte *bufLimit = buf + inSize;
CLzmaProb *probs = p->probs;
unsigned state = p->state;
ELzmaDummy res;
{
CLzmaProb *prob;
UInt32 bound;
unsigned ttt;
unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1);
prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
IF_BIT_0_CHECK(prob)
{
UPDATE_0_CHECK
/* if (bufLimit - buf >= 7) return DUMMY_LIT; */
prob = probs + Literal;
if (p->checkDicSize != 0 || p->processedPos != 0)
prob += (LZMA_LIT_SIZE *
((((p->processedPos) & ((1 << (p->prop.lp)) - 1)) << p->prop.lc) +
(p->dic[(p->dicPos == 0 ? p->dicBufSize : p->dicPos) - 1] >> (8 - p->prop.lc))));
if (state < kNumLitStates)
{
unsigned symbol = 1;
do { GET_BIT_CHECK(prob + symbol, symbol) } while (symbol < 0x100);
}
else
{
unsigned matchByte = p->dic[p->dicPos - p->reps[0] +
((p->dicPos < p->reps[0]) ? p->dicBufSize : 0)];
unsigned offs = 0x100;
unsigned symbol = 1;
do
{
unsigned bit;
CLzmaProb *probLit;
matchByte <<= 1;
bit = (matchByte & offs);
probLit = prob + offs + bit + symbol;
GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit)
}
while (symbol < 0x100);
}
res = DUMMY_LIT;
}
else
{
unsigned len;
UPDATE_1_CHECK;
prob = probs + IsRep + state;
IF_BIT_0_CHECK(prob)
{
UPDATE_0_CHECK;
state = 0;
prob = probs + LenCoder;
res = DUMMY_MATCH;
}
else
{
UPDATE_1_CHECK;
res = DUMMY_REP;
prob = probs + IsRepG0 + state;
IF_BIT_0_CHECK(prob)
{
UPDATE_0_CHECK;
prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
IF_BIT_0_CHECK(prob)
{
UPDATE_0_CHECK;
NORMALIZE_CHECK;
return DUMMY_REP;
}
else
{
UPDATE_1_CHECK;
}
}
else
{
UPDATE_1_CHECK;
prob = probs + IsRepG1 + state;
IF_BIT_0_CHECK(prob)
{
UPDATE_0_CHECK;
}
else
{
UPDATE_1_CHECK;
prob = probs + IsRepG2 + state;
IF_BIT_0_CHECK(prob)
{
UPDATE_0_CHECK;
}
else
{
UPDATE_1_CHECK;
}
}
}
state = kNumStates;
prob = probs + RepLenCoder;
}
{
unsigned limit, offset;
CLzmaProb *probLen = prob + LenChoice;
IF_BIT_0_CHECK(probLen)
{
UPDATE_0_CHECK;
probLen = prob + LenLow + (posState << kLenNumLowBits);
offset = 0;
limit = 1 << kLenNumLowBits;
}
else
{
UPDATE_1_CHECK;
probLen = prob + LenChoice2;
IF_BIT_0_CHECK(probLen)
{
UPDATE_0_CHECK;
probLen = prob + LenMid + (posState << kLenNumMidBits);
offset = kLenNumLowSymbols;
limit = 1 << kLenNumMidBits;
}
else
{
UPDATE_1_CHECK;
probLen = prob + LenHigh;
offset = kLenNumLowSymbols + kLenNumMidSymbols;
limit = 1 << kLenNumHighBits;
}
}
TREE_DECODE_CHECK(probLen, limit, len);
len += offset;
}
if (state < 4)
{
unsigned posSlot;
prob = probs + PosSlot +
((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
kNumPosSlotBits);
TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot);
if (posSlot >= kStartPosModelIndex)
{
int numDirectBits = ((posSlot >> 1) - 1);
/* if (bufLimit - buf >= 8) return DUMMY_MATCH; */
if (posSlot < kEndPosModelIndex)
{
prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) - posSlot - 1;
}
else
{
numDirectBits -= kNumAlignBits;
do
{
NORMALIZE_CHECK
range >>= 1;
code -= range & (((code - range) >> 31) - 1);
/* if (code >= range) code -= range; */
}
while (--numDirectBits != 0);
prob = probs + Align;
numDirectBits = kNumAlignBits;
}
{
unsigned i = 1;
do
{
GET_BIT_CHECK(prob + i, i);
}
while (--numDirectBits != 0);
}
}
}
}
}
NORMALIZE_CHECK;
return res;
}
Definition at line 428 of file LzmaDec.cc.
References CLzmaDec::checkDicSize, CLzmaDec::dic, CLzmaDec::dicBufSize, CLzmaDec::dicPos, _CLzmaProps::dicSize, kMatchSpecLenStart, CLzmaDec::processedPos, CLzmaDec::prop, CLzmaDec::remainLen, and CLzmaDec::reps.
Referenced by LzmaDec_DecodeReal2(), and LzmaDec_DecodeToDic().
{
if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart)
{
Byte *dic = p->dic;
SizeT dicPos = p->dicPos;
SizeT dicBufSize = p->dicBufSize;
unsigned len = p->remainLen;
UInt32 rep0 = p->reps[0];
if (limit - dicPos < len)
len = (unsigned)(limit - dicPos);
if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len)
p->checkDicSize = p->prop.dicSize;
p->processedPos += len;
p->remainLen -= len;
while (len-- != 0)
{
dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
dicPos++;
}
p->dicPos = dicPos;
}
}
| SRes LzmaDecode | ( | Byte * | dest, |
| SizeT * | destLen, | ||
| const Byte * | src, | ||
| SizeT * | srcLen, | ||
| const Byte * | propData, | ||
| unsigned | propSize, | ||
| ELzmaFinishMode | finishMode, | ||
| ELzmaStatus * | status, | ||
| ISzAlloc * | alloc | ||
| ) |
Definition at line 969 of file LzmaDec.cc.
References alignCSCRings::dest, CLzmaDec::dic, CLzmaDec::dicBufSize, CLzmaDec::dicPos, LZMA_STATUS_NEEDS_MORE_INPUT, LzmaDec_AllocateProbs(), LzmaDec_Construct, LzmaDec_DecodeToDic(), LzmaDec_FreeProbs(), LzmaDec_Init(), AlCaHLTBitMon_ParallelJobs::p, RC_INIT_SIZE, SZ_ERROR_INPUT_EOF, and SZ_OK.
{
CLzmaDec p;
SRes res;
SizeT inSize = *srcLen;
SizeT outSize = *destLen;
*srcLen = *destLen = 0;
if (inSize < RC_INIT_SIZE)
return SZ_ERROR_INPUT_EOF;
LzmaDec_Construct(&p);
res = LzmaDec_AllocateProbs(&p, propData, propSize, alloc);
if (res != 0)
return res;
p.dic = dest;
p.dicBufSize = outSize;
LzmaDec_Init(&p);
*srcLen = inSize;
res = LzmaDec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);
if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
res = SZ_ERROR_INPUT_EOF;
(*destLen) = p.dicPos;
LzmaDec_FreeProbs(&p, alloc);
return res;
}
| SRes LzmaProps_Decode | ( | CLzmaProps * | p, |
| const Byte * | data, | ||
| unsigned | size | ||
| ) |
Definition at line 898 of file LzmaDec.cc.
References _CLzmaProps::dicSize, _CLzmaProps::lc, _CLzmaProps::lp, LZMA_DIC_MIN, LZMA_PROPS_SIZE, _CLzmaProps::pb, SZ_ERROR_UNSUPPORTED, and SZ_OK.
Referenced by LzmaDec_Allocate(), and LzmaDec_AllocateProbs().
{
UInt32 dicSize;
Byte d;
if (size < LZMA_PROPS_SIZE)
return SZ_ERROR_UNSUPPORTED;
else
dicSize = data[1] | ((UInt32)data[2] << 8) | ((UInt32)data[3] << 16) | ((UInt32)data[4] << 24);
if (dicSize < LZMA_DIC_MIN)
dicSize = LZMA_DIC_MIN;
p->dicSize = dicSize;
d = data[0];
if (d >= (9 * 5 * 5))
return SZ_ERROR_UNSUPPORTED;
p->lc = d % 9;
d /= 9;
p->pb = d / 5;
p->lp = d % 5;
return SZ_OK;
}
1.7.3