void CInArchive::GetNextFolderItem(CFolder &folder)
{
CNum numCoders = ReadNum();
folder.Coders.Clear();
folder.Coders.Reserve((int)numCoders);
CNum numInStreams = 0;
CNum numOutStreams = 0;
CNum i;
for (i = 0; i < numCoders; i++)
{
folder.Coders.Add(CCoderInfo());
CCoderInfo &coder = folder.Coders.Back();
{
Byte mainByte = ReadByte();
int idSize = (mainByte & 0xF);
Byte longID[15];
ReadBytes(longID, idSize);
if (idSize > 8)
ThrowUnsupported();
UInt64 id = 0;
for (int j = 0; j < idSize; j++)
id |= (UInt64)longID[idSize - 1 - j] << (8 * j);
coder.MethodID = id;
if ((mainByte & 0x10) != 0)
{
coder.NumInStreams = ReadNum();
coder.NumOutStreams = ReadNum();
}
else
{
coder.NumInStreams = 1;
coder.NumOutStreams = 1;
}
if ((mainByte & 0x20) != 0)
{
CNum propsSize = ReadNum();
coder.Props.SetCapacity((size_t)propsSize);
ReadBytes((Byte *)coder.Props, (size_t)propsSize);
}
if ((mainByte & 0x80) != 0)
ThrowUnsupported();
}
numInStreams += coder.NumInStreams;
numOutStreams += coder.NumOutStreams;
}
CNum numBindPairs = numOutStreams - 1;
folder.BindPairs.Clear();
folder.BindPairs.Reserve(numBindPairs);
for (i = 0; i < numBindPairs; i++)
{
CBindPair bp;
bp.InIndex = ReadNum();
bp.OutIndex = ReadNum();
folder.BindPairs.Add(bp);
}
if (numInStreams < numBindPairs)
ThrowUnsupported();
CNum numPackStreams = numInStreams - numBindPairs;
folder.PackStreams.Reserve(numPackStreams);
if (numPackStreams == 1)
{
for (i = 0; i < numInStreams; i++)
if (folder.FindBindPairForInStream(i) < 0)
{
folder.PackStreams.Add(i);
break;
}
if (folder.PackStreams.Size() != 1)
ThrowUnsupported();
}
else
for (i = 0; i < numPackStreams; i++)
folder.PackStreams.Add(ReadNum());
}
HRESULT CDecoder::Decode(
DECL_EXTERNAL_CODECS_LOC_VARS
IInStream *inStream,
UInt64 startPos,
const UInt64 *packSizes,
const CFolder &folderInfo,
ISequentialOutStream *outStream,
ICompressProgressInfo *compressProgress
#ifndef _NO_CRYPTO
, ICryptoGetTextPassword *getTextPassword, bool &passwordIsDefined
#endif
#ifdef COMPRESS_MT
, bool mtMode, UInt32 numThreads
#endif
)
{
if (!folderInfo.CheckStructure())
return E_NOTIMPL;
#ifndef _NO_CRYPTO
passwordIsDefined = false;
#endif
CObjectVector< CMyComPtr<ISequentialInStream> > inStreams;
CLockedInStream lockedInStream;
lockedInStream.Init(inStream);
for (int j = 0; j < folderInfo.PackStreams.Size(); j++)
{
CLockedSequentialInStreamImp *lockedStreamImpSpec = new
CLockedSequentialInStreamImp;
CMyComPtr<ISequentialInStream> lockedStreamImp = lockedStreamImpSpec;
lockedStreamImpSpec->Init(&lockedInStream, startPos);
startPos += packSizes[j];
CLimitedSequentialInStream *streamSpec = new
CLimitedSequentialInStream;
CMyComPtr<ISequentialInStream> inStream = streamSpec;
streamSpec->SetStream(lockedStreamImp);
streamSpec->Init(packSizes[j]);
inStreams.Add(inStream);
}
int numCoders = folderInfo.Coders.Size();
CBindInfoEx bindInfo;
ConvertFolderItemInfoToBindInfo(folderInfo, bindInfo);
bool createNewCoders;
if (!_bindInfoExPrevIsDefined)
createNewCoders = true;
else
createNewCoders = !AreBindInfoExEqual(bindInfo, _bindInfoExPrev);
if (createNewCoders)
{
int i;
_decoders.Clear();
// _decoders2.Clear();
_mixerCoder.Release();
if (_multiThread)
{
_mixerCoderMTSpec = new NCoderMixer::CCoderMixer2MT;
_mixerCoder = _mixerCoderMTSpec;
_mixerCoderCommon = _mixerCoderMTSpec;
}
else
{
#ifdef _ST_MODE
_mixerCoderSTSpec = new NCoderMixer::CCoderMixer2ST;
_mixerCoder = _mixerCoderSTSpec;
_mixerCoderCommon = _mixerCoderSTSpec;
#endif
}
RINOK(_mixerCoderCommon->SetBindInfo(bindInfo));
for (i = 0; i < numCoders; i++)
{
const CCoderInfo &coderInfo = folderInfo.Coders[i];
CMyComPtr<ICompressCoder> decoder;
CMyComPtr<ICompressCoder2> decoder2;
RINOK(CreateCoder(
EXTERNAL_CODECS_LOC_VARS
coderInfo.MethodID, decoder, decoder2, false));
CMyComPtr<IUnknown> decoderUnknown;
if (coderInfo.IsSimpleCoder())
{
if (decoder == 0)
return E_NOTIMPL;
decoderUnknown = (IUnknown *)decoder;
if (_multiThread)
_mixerCoderMTSpec->AddCoder(decoder);
#ifdef _ST_MODE
else
_mixerCoderSTSpec->AddCoder(decoder, false);
#endif
}
else
{
if (decoder2 == 0)
return E_NOTIMPL;
decoderUnknown = (IUnknown *)decoder2;
if (_multiThread)
_mixerCoderMTSpec->AddCoder2(decoder2);
#ifdef _ST_MODE
else
_mixerCoderSTSpec->AddCoder2(decoder2, false);
#endif
}
_decoders.Add(decoderUnknown);
#ifdef EXTERNAL_CODECS
CMyComPtr<ISetCompressCodecsInfo> setCompressCodecsInfo;
decoderUnknown.QueryInterface(IID_ISetCompressCodecsInfo, (void **)&setCompressCodecsInfo);
if (setCompressCodecsInfo)
{
RINOK(setCompressCodecsInfo->SetCompressCodecsInfo(codecsInfo));
}
#endif
}
_bindInfoExPrev = bindInfo;
_bindInfoExPrevIsDefined = true;
}
int i;
_mixerCoderCommon->ReInit();
UInt32 packStreamIndex = 0, unpackStreamIndex = 0;
UInt32 coderIndex = 0;
// UInt32 coder2Index = 0;
for (i = 0; i < numCoders; i++)
{
const CCoderInfo &coderInfo = folderInfo.Coders[i];
CMyComPtr<IUnknown> &decoder = _decoders[coderIndex];
{
CMyComPtr<ICompressSetDecoderProperties2> setDecoderProperties;
decoder.QueryInterface(IID_ICompressSetDecoderProperties2, &setDecoderProperties);
if (setDecoderProperties)
{
const CByteBuffer &props = coderInfo.Props;
size_t size = props.GetCapacity();
if (size > 0xFFFFFFFF)
return E_NOTIMPL;
if (size > 0)
{
RINOK(setDecoderProperties->SetDecoderProperties2((const Byte *)props, (UInt32)size));
}
}
}
#ifdef COMPRESS_MT
if (mtMode)
{
CMyComPtr<ICompressSetCoderMt> setCoderMt;
decoder.QueryInterface(IID_ICompressSetCoderMt, &setCoderMt);
if (setCoderMt)
{
RINOK(setCoderMt->SetNumberOfThreads(numThreads));
}
}
#endif
#ifndef _NO_CRYPTO
{
CMyComPtr<ICryptoSetPassword> cryptoSetPassword;
decoder.QueryInterface(IID_ICryptoSetPassword, &cryptoSetPassword);
if (cryptoSetPassword)
{
if (getTextPassword == 0)
return E_FAIL;
CMyComBSTR passwordBSTR;
RINOK(getTextPassword->CryptoGetTextPassword(&passwordBSTR));
CByteBuffer buffer;
passwordIsDefined = true;
const UString password(passwordBSTR);
const UInt32 sizeInBytes = password.Length() * 2;
buffer.SetCapacity(sizeInBytes);
for (int i = 0; i < password.Length(); i++)
{
wchar_t c = password[i];
((Byte *)buffer)[i * 2] = (Byte)c;
((Byte *)buffer)[i * 2 + 1] = (Byte)(c >> 8);
}
RINOK(cryptoSetPassword->CryptoSetPassword((const Byte *)buffer, sizeInBytes));
}
}
#endif
coderIndex++;
UInt32 numInStreams = (UInt32)coderInfo.NumInStreams;
UInt32 numOutStreams = (UInt32)coderInfo.NumOutStreams;
CRecordVector<const UInt64 *> packSizesPointers;
CRecordVector<const UInt64 *> unpackSizesPointers;
packSizesPointers.Reserve(numInStreams);
unpackSizesPointers.Reserve(numOutStreams);
UInt32 j;
for (j = 0; j < numOutStreams; j++, unpackStreamIndex++)
unpackSizesPointers.Add(&folderInfo.UnpackSizes[unpackStreamIndex]);
for (j = 0; j < numInStreams; j++, packStreamIndex++)
{
int bindPairIndex = folderInfo.FindBindPairForInStream(packStreamIndex);
if (bindPairIndex >= 0)
packSizesPointers.Add(
&folderInfo.UnpackSizes[(UInt32)folderInfo.BindPairs[bindPairIndex].OutIndex]);
else
{
int index = folderInfo.FindPackStreamArrayIndex(packStreamIndex);
if (index < 0)
return E_FAIL;
packSizesPointers.Add(&packSizes[index]);
}
}
_mixerCoderCommon->SetCoderInfo(i,
&packSizesPointers.Front(),
&unpackSizesPointers.Front());
}
UInt32 mainCoder, temp;
bindInfo.FindOutStream(bindInfo.OutStreams[0], mainCoder, temp);
if (_multiThread)
_mixerCoderMTSpec->SetProgressCoderIndex(mainCoder);
/*
else
_mixerCoderSTSpec->SetProgressCoderIndex(mainCoder);;
*/
if (numCoders == 0)
return 0;
CRecordVector<ISequentialInStream *> inStreamPointers;
inStreamPointers.Reserve(inStreams.Size());
for (i = 0; i < inStreams.Size(); i++)
inStreamPointers.Add(inStreams[i]);
ISequentialOutStream *outStreamPointer = outStream;
return _mixerCoder->Code(&inStreamPointers.Front(), NULL,
inStreams.Size(), &outStreamPointer, NULL, 1, compressProgress);
}
