private uint ReadHuffSym(ushort[] table, byte[] lengths, uint nsyms, uint nbits, BitBuffer bitbuf)
{
uint i, j;
bitbuf.EnsureBits(16);
if ((i = table[bitbuf.PeekBits((byte)nbits)]) >= nsyms)
{
j = (uint)(1 << (int)(sizeof(uint) * 8 - nbits));
do
{
j >>= 1;
i <<= 1;
i |= (bitbuf.GetBuffer() & j) != 0 ? (uint)1 : 0;
if (j == 0)
{
return(0); // TODO throw proper exception
}
} while ((i = table[i]) >= nsyms);
}
j = lengths[i];
bitbuf.RemoveBits((byte)j);
return(i);
}
private uint ReadHuffSym(ushort[] table, byte[] lengths, uint nsyms, uint nbits, BitBuffer bitbuf)
{
uint i, j;
bitbuf.EnsureBits(16);
if((i = table[bitbuf.PeekBits((byte)nbits)]) >= nsyms)
{
j = (uint)(1 << (int)((sizeof(uint)*8) - nbits));
do
{
j >>= 1; i <<= 1; i |= (bitbuf.GetBuffer() & j) != 0 ? (uint)1 : 0;
if(j == 0) return 0; // TODO throw proper exception
} while((i = table[i]) >= nsyms);
}
j = lengths[i];
bitbuf.RemoveBits((byte)j);
return i;
}