public RarStream(Unpack unpack, FileHeader fileHeader, Stream readStream)
{
this.unpack = unpack;
this.fileHeader = fileHeader;
this.readStream = readStream;
fetch = true;
unpack.doUnpack(fileHeader, readStream, this);
fetch = false;
}
internal bool decodeInit(Unpack unpackRead, int escChar)
{
int MaxOrder = unpackRead.Char & 0xff;
bool reset = ((MaxOrder & 0x20) != 0);
int MaxMB = 0;
if (reset)
{
MaxMB = unpackRead.Char;
}
else
{
if (subAlloc.GetAllocatedMemory() == 0)
{
return (false);
}
}
if ((MaxOrder & 0x40) != 0)
{
escChar = unpackRead.Char;
unpackRead.PpmEscChar = escChar;
}
coder = new RangeCoder(unpackRead);
if (reset)
{
MaxOrder = (MaxOrder & 0x1f) + 1;
if (MaxOrder > 16)
{
MaxOrder = 16 + (MaxOrder - 16)*3;
}
if (MaxOrder == 1)
{
subAlloc.stopSubAllocator();
return (false);
}
subAlloc.startSubAllocator((MaxMB + 1) << 20);
minContext = new PPMContext(Heap);
//medContext = new PPMContext(Heap);
maxContext = new PPMContext(Heap);
foundState = new State(Heap);
dummySEE2Cont = new SEE2Context();
for (int i = 0; i < 25; i++)
{
for (int j = 0; j < 16; j++)
{
SEE2Cont[i][j] = new SEE2Context();
}
}
startModelRare(MaxOrder);
}
return (minContext.Address != 0);
}
public void WriteTo(Stream streamToWriteTo, IExtractionListener listener)
{
if (IsEncrypted)
{
throw new RarExtractionException("Entry is password protected and cannot be extracted.");
}
if (IsDirectory)
{
throw new RarExtractionException("Entry is a file directory and cannot be extracted.");
}
listener.CheckNotNull("listener");
listener.OnFileEntryExtractionInitialized(FilePath, CompressedSize);
using (Stream input = new MultiVolumeReadOnlyStream(parts, listener))
{
var pack = new Unpack(FileHeader, input, streamToWriteTo);
pack.doUnpack(Archive.IsSolidArchive());
}
}
internal RangeCoder(Unpack unpackRead)
{
this.unpackRead = unpackRead;
this.Init();
}
internal bool decodeInit(Unpack unpackRead, int escChar)
{
int maxOrder = unpackRead.Char & 0xff;
bool flag = (maxOrder & 0x20) != 0;
int num2 = 0;
if (flag)
{
num2 = unpackRead.Char;
}
else if (this.subAlloc.GetAllocatedMemory() == 0)
{
return false;
}
if ((maxOrder & 0x40) != 0)
{
escChar = unpackRead.Char;
unpackRead.PpmEscChar = escChar;
}
this.coder = new RangeCoder(unpackRead);
if (flag)
{
maxOrder = (maxOrder & 0x1f) + 1;
if (maxOrder > 0x10)
{
maxOrder = 0x10 + ((maxOrder - 0x10) * 3);
}
if (maxOrder == 1)
{
this.subAlloc.stopSubAllocator();
return false;
}
this.subAlloc.startSubAllocator((num2 + 1) << 20);
this.minContext = new PPMContext(this.Heap);
this.maxContext = new PPMContext(this.Heap);
this.foundState = new SharpCompress.Compressor.PPMd.H.State(this.Heap);
this.dummySEE2Cont = new SEE2Context();
for (int i = 0; i < 0x19; i++)
{
for (int j = 0; j < 0x10; j++)
{
this.SEE2Cont[i][j] = new SEE2Context();
}
}
this.startModelRare(maxOrder);
}
return (this.minContext.Address != 0);
}
internal RarArchive(IEnumerable <Stream> streams, Options options, string password) : base(ArchiveType.Rar, streams, options, password)
{
this.unpack = new SharpCompress.Compressor.Rar.Unpack();
}