public static Stream smethod_0(Stream compressedStream, long decompressedSize)
{
MemoryStream memoryStream = new MemoryStream(new byte[decompressedSize]);
Class956.smethod_2(compressedStream, (Stream)memoryStream);
memoryStream.Position = 0L;
return((Stream)memoryStream);
}
public static void smethod_2(Stream inputStream, Stream decompressedStream)
{
int opcode1 = (int)(byte)inputStream.ReadByte();
if ((opcode1 & 240) == 0)
{
opcode1 = (int)Class956.smethod_3(Class956.smethod_4(opcode1, inputStream) + 3, inputStream, decompressedStream);
}
while (opcode1 != 17)
{
int offset = 0;
int num1 = 0;
if (opcode1 >= 16 && opcode1 < 64)
{
if (opcode1 < 32)
{
num1 = Class956.smethod_5(opcode1, 7, inputStream);
offset = (opcode1 & 8) << 11;
opcode1 = Class956.smethod_6(ref offset, 16384, inputStream);
}
else if (opcode1 >= 32)
{
num1 = Class956.smethod_5(opcode1, 31, inputStream);
opcode1 = Class956.smethod_6(ref offset, 1, inputStream);
}
}
else
{
int num2 = (int)(byte)inputStream.ReadByte();
offset = (opcode1 >> 2 & 3 | num2 << 2) + 1;
num1 = (opcode1 >> 4) - 1;
}
long position = decompressedStream.Position;
for (long index = (long)num1 + position; position < index; ++position)
{
decompressedStream.Position = position - (long)offset;
byte num2 = (byte)decompressedStream.ReadByte();
decompressedStream.Position = position;
decompressedStream.WriteByte(num2);
}
int litLength = opcode1 & 3;
if (litLength == 0)
{
opcode1 = (int)(byte)inputStream.ReadByte();
if ((opcode1 & 240) == 0)
{
litLength = Class956.smethod_4(opcode1, inputStream) + 3;
}
}
if (litLength != 0)
{
opcode1 = (int)Class956.smethod_3(litLength, inputStream, decompressedStream);
}
}
inputStream.ReadByte();
inputStream.ReadByte();
}