--- a/misc/libphysfs/lzma/Java/SevenZip/Compression/RangeCoder/BitTreeDecoder.java Thu Oct 11 23:43:31 2018 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,55 +0,0 @@
-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;
- }
-}