private void SetLiteralProperties(int lp, int lc)
{
if (lp > 8 || lc > 8)
{
LzmaDecompressor.InvalidLzmaProperties();
}
this.literalDecoder = new LzmaLiteralDecoder(lp, lc);
}
private void SetPosBitsProperties(int pb)
{
if (pb > 4)
{
LzmaDecompressor.InvalidLzmaProperties();
}
uint positionStates = (uint)(1 << pb);
this.lengthDecoder = new LzmaLengthDecoder(positionStates);
this.repeaterLengthDecoder = new LzmaLengthDecoder(positionStates);
this.positionStateMask = positionStates - 1U;
}
private void InitializeDecompressor(int propertiesIndex)
{
byte[] buffer = this.Header.Buffer;
int lc = (int)buffer[propertiesIndex] % 9;
int num = (int)buffer[propertiesIndex] / 9;
int lp = num % 5;
int pb = num / 5;
if (pb > 4)
{
LzmaDecompressor.InvalidLzmaProperties();
}
uint size = 0;
++propertiesIndex;
for (int index = 0; index < 4; ++index)
{
size += (uint)buffer[propertiesIndex + index] << index * 8;
}
this.SetDictionarySize(size);
this.SetLiteralProperties(lp, lc);
this.SetPosBitsProperties(pb);
}