bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
package SevenZip.Compression.RangeCoder;
public class BitTreeDecoder
{
short[] Models;
int NumBitLevels;
public BitTreeDecoder(int numBitLevels)
{
NumBitLevels = numBitLevels;
Models = new short[1 << numBitLevels];
}
public void Init()
{
Decoder.InitBitModels(Models);
}
public int Decode(Decoder rangeDecoder) throws java.io.IOException
{
int m = 1;
for (int bitIndex = NumBitLevels; bitIndex != 0; bitIndex--)
m = (m << 1) + rangeDecoder.DecodeBit(Models, m);
return m - (1 << NumBitLevels);
}
public int ReverseDecode(Decoder rangeDecoder) throws java.io.IOException
{
int m = 1;
int symbol = 0;
for (int bitIndex = 0; bitIndex < NumBitLevels; bitIndex++)
{
int bit = rangeDecoder.DecodeBit(Models, m);
m <<= 1;
m += bit;
symbol |= (bit << bitIndex);
}
return symbol;
}
public static int ReverseDecode(short[] Models, int startIndex,
Decoder rangeDecoder, int NumBitLevels) throws java.io.IOException
{
int m = 1;
int symbol = 0;
for (int bitIndex = 0; bitIndex < NumBitLevels; bitIndex++)
{
int bit = rangeDecoder.DecodeBit(Models, startIndex + m);
m <<= 1;
m += bit;
symbol |= (bit << bitIndex);
}
return symbol;
}
}