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