public byte DecodeWithMatchByte(RangeCoder.Decoder rangeDecoder, byte matchByte)
{
uint symbol = 1;
do
{
uint matchBit = (uint)(matchByte >> 7) & 1;
matchByte <<= 1;
uint bit = m_Decoders[((1 + matchBit) << 8) + symbol].Decode(rangeDecoder);
symbol = (symbol << 1) | bit;
if (matchBit != bit)
{
while (symbol < 0x100)
{
symbol = (symbol << 1) | m_Decoders[symbol].Decode(rangeDecoder);
}
break;
}
}while (symbol < 0x100);
return((byte)symbol);
}
public uint Decode(RangeCoder.Decoder rangeDecoder, uint posState)
{
if (m_Choice.Decode(rangeDecoder) == 0)
{
return(m_LowCoder[posState].Decode(rangeDecoder));
}
else
{
uint symbol = Base.kNumLowLenSymbols;
if (m_Choice2.Decode(rangeDecoder) == 0)
{
symbol += m_MidCoder[posState].Decode(rangeDecoder);
}
else
{
symbol += Base.kNumMidLenSymbols;
symbol += m_HighCoder.Decode(rangeDecoder);
}
return(symbol);
}
}
public byte DecodeWithMatchByte(RangeCoder.Decoder rangeDecoder, uint pos, byte prevByte, byte matchByte)
{
return(m_Coders[GetState(pos, prevByte)].DecodeWithMatchByte(rangeDecoder, matchByte));
}
public byte DecodeNormal(RangeCoder.Decoder rangeDecoder, uint pos, byte prevByte)
{
return(m_Coders[GetState(pos, prevByte)].DecodeNormal(rangeDecoder));
}