private SRes LzmaEnc_Alloc(uint keepWindowSize, ISzAlloc alloc, ISzAlloc allocBig)
{
if (!mRC.RangeEnc_Alloc(alloc))
return SZ_ERROR_MEM;
bool btMode = mMatchFinderBase.mBtMode;
#if !_7ZIP_ST
mMtMode = (mMultiThread && !mFastMode && btMode);
#endif
int lclp = mLC + mLP;
if (mLitProbs == null || mSaveState.mLitProbs == null || mLcLp != lclp)
{
LzmaEnc_FreeLits(alloc);
mLitProbs = alloc.AllocUInt16(alloc, 0x300 << lclp);
mSaveState.mLitProbs = alloc.AllocUInt16(alloc, 0x300 << lclp);
if (mLitProbs == null || mSaveState.mLitProbs == null)
{
LzmaEnc_FreeLits(alloc);
return SZ_ERROR_MEM;
}
mLcLp = lclp;
}
mMatchFinderBase.mBigHash = (mDictSize > kBigHashDicLimit);
uint beforeSize = kNumOpts;
if (beforeSize + mDictSize < keepWindowSize)
beforeSize = keepWindowSize - mDictSize;
#if !_7ZIP_ST
if (mMtMode)
{
SRes res;
if ((res = mMatchFinderMt.MatchFinderMt_Create(mDictSize, beforeSize, mNumFastBytes, LZMA_MATCH_LEN_MAX, allocBig)) != SZ_OK)
return res;
mMatchFinderObj = mMatchFinderMt;
mMatchFinderMt.MatchFinderMt_CreateVTable(out mMatchFinder);
}
else
#endif
{
if (!mMatchFinderBase.MatchFinder_Create(mDictSize, beforeSize, mNumFastBytes, LZMA_MATCH_LEN_MAX, allocBig))
return SZ_ERROR_MEM;
mMatchFinderObj = mMatchFinderBase;
MatchFinder_CreateVTable(mMatchFinderBase, out mMatchFinder);
}
return SZ_OK;
}
private SRes LzmaDec_AllocateProbs2(CLzmaProps propNew, ISzAlloc alloc)
{
uint numProbs = LzmaProps_GetNumProbs(propNew);
if (mProbs == null || numProbs != mNumProbs)
{
LzmaDec_FreeProbs(alloc);
mProbs = alloc.AllocUInt16(alloc, numProbs);
mNumProbs = numProbs;
if (mProbs == null)
return SZ_ERROR_MEM;
}
return SZ_OK;
}
