internal void EncodeBlock(Stream target, Stream source, bool final)
{
while (true)
{
_minimumContext = _maximumContext;
_numberStatistics = _minimumContext.NumberStatistics;
int c = source.ReadByte();
if (c < 0 && !final)
{
return;
}
if (_numberStatistics != 0)
{
EncodeSymbol1(c, _minimumContext);
_coder.RangeEncodeSymbol();
}
else
{
EncodeBinarySymbol(c, _minimumContext);
_coder.RangeShiftEncodeSymbol(TOTAL_BIT_COUNT);
}
while (_foundState == PpmState.ZERO)
{
_coder.RangeEncoderNormalize(target);
do
{
_orderFall++;
_minimumContext = _minimumContext.Suffix;
if (_minimumContext == PpmContext.ZERO)
{
goto StopEncoding;
}
}while (_minimumContext.NumberStatistics == _numberMasked);
EncodeSymbol2(c, _minimumContext);
_coder.RangeEncodeSymbol();
}
if (_orderFall == 0 && (Pointer)_foundState.Successor >= _allocator._baseUnit)
{
_maximumContext = _foundState.Successor;
}
else
{
UpdateModel(_minimumContext);
if (_escapeCount == 0)
{
ClearMask();
}
}
_coder.RangeEncoderNormalize(target);
}
StopEncoding:
_coder.RangeEncoderFlush(target);
}
internal void EncodeBlock(Stream target, Stream source, bool final)
{
while (true)
{
minimumContext = maximumContext;
numberStatistics = minimumContext.NumberStatistics;
int c = source.ReadByte();
if (c < 0 && !final)
{
return;
}
if (numberStatistics != 0)
{
EncodeSymbol1(c, minimumContext);
Coder.RangeEncodeSymbol();
}
else
{
EncodeBinarySymbol(c, minimumContext);
Coder.RangeShiftEncodeSymbol(TotalBitCount);
}
while (foundState == PpmState.Zero)
{
Coder.RangeEncoderNormalize(target);
do
{
orderFall++;
minimumContext = minimumContext.Suffix;
if (minimumContext == PpmContext.Zero)
{
goto StopEncoding;
}
}while (minimumContext.NumberStatistics == numberMasked);
EncodeSymbol2(c, minimumContext);
Coder.RangeEncodeSymbol();
}
if (orderFall == 0 && (Pointer)foundState.Successor >= Allocator.BaseUnit)
{
maximumContext = foundState.Successor;
}
else
{
UpdateModel(minimumContext);
if (escapeCount == 0)
{
ClearMask();
}
}
Coder.RangeEncoderNormalize(target);
}
StopEncoding:
Coder.RangeEncoderFlush(target);
}