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#include "Types.h"Go to the source code of this file.
| #define CLzmaProb UInt16 |
Definition at line 20 of file LzmaDec.h.
Referenced by LzmaDec_AllocateProbs2(), LzmaDec_DecodeReal(), LzmaDec_InitStateReal(), and LzmaDec_TryDummy().
| #define LZMA_PROPS_SIZE 5 |
Definition at line 26 of file LzmaDec.h.
Referenced by LzmaProps_Decode(), and LzmaFile::Open().
| #define LZMA_REQUIRED_INPUT_MAX 20 |
Definition at line 48 of file LzmaDec.h.
Referenced by LzmaDec_DecodeToDic().
| #define LzmaDec_Construct | ( | p | ) | { (p)->dic = 0; (p)->probs = 0; } |
Definition at line 71 of file LzmaDec.h.
Referenced by LzmaDecode(), and LzmaFile::Open().
| typedef struct _CLzmaProps CLzmaProps |
| enum ELzmaFinishMode |
Definition at line 79 of file LzmaDec.h.
{
LZMA_FINISH_ANY, /* finish at any point */
LZMA_FINISH_END /* block must be finished at the end */
} ELzmaFinishMode;
| enum ELzmaStatus |
| LZMA_STATUS_NOT_SPECIFIED | |
| LZMA_STATUS_FINISHED_WITH_MARK | |
| LZMA_STATUS_NOT_FINISHED | |
| LZMA_STATUS_NEEDS_MORE_INPUT | |
| LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK |
Definition at line 100 of file LzmaDec.h.
{
LZMA_STATUS_NOT_SPECIFIED, /* use main error code instead */
LZMA_STATUS_FINISHED_WITH_MARK, /* stream was finished with end mark. */
LZMA_STATUS_NOT_FINISHED, /* stream was not finished */
LZMA_STATUS_NEEDS_MORE_INPUT, /* you must provide more input bytes */
LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK /* there is probability that stream was finished without end mark */
} ELzmaStatus;
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;
}
| 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 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);
}
| 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