Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/Java/SevenZip/Compression/RangeCoder/Encoder.java

-package SevenZip.Compression.RangeCoder;
-import java.io.IOException;
-
-public class Encoder
-{
-        static final int kTopMask = ~((1 << 24) - 1);
-        
-        static final int kNumBitModelTotalBits = 11;
-        static final int kBitModelTotal = (1 << kNumBitModelTotalBits);
-        static final int kNumMoveBits = 5;
-        
-        java.io.OutputStream Stream;
-
-        long Low;
-        int Range;
-        int _cacheSize;
-        int _cache;
-        
-        long _position;
-        
-        public void SetStream(java.io.OutputStream stream)
-        {
-                Stream = stream;
-        }
-        
-        public void ReleaseStream()
-        {
-                Stream = null;
-        }
-        
-        public void Init()
-        {
-                _position = 0;
-                Low = 0;
-                Range = -1;
-                _cacheSize = 1;
-                _cache = 0;
-        }
-        
-        public void FlushData() throws IOException
-        {
-                for (int i = 0; i < 5; i++)
-                        ShiftLow();
-        }
-        
-        public void FlushStream() throws IOException
-        {
-                Stream.flush();
-        }
-        
-        public void ShiftLow() throws IOException
-        {
-                int LowHi = (int)(Low >>> 32);
-                if (LowHi != 0 || Low < 0xFF000000L)
-                {
-                        _position += _cacheSize;
-                        int temp = _cache;
-                        do
-                        {
-                                Stream.write(temp + LowHi);
-                                temp = 0xFF;
-                        }
-                        while(--_cacheSize != 0);
-                        _cache = (((int)Low) >>> 24);
-                }
-                _cacheSize++;
-                Low = (Low & 0xFFFFFF) << 8;
-        }
-        
-        public void EncodeDirectBits(int v, int numTotalBits) throws IOException
-        {
-                for (int i = numTotalBits - 1; i >= 0; i--)
-                {
-                        Range >>>= 1;
-                        if (((v >>> i) & 1) == 1)
-                                Low += Range;
-                        if ((Range & Encoder.kTopMask) == 0)
-                        {
-                                Range <<= 8;
-                                ShiftLow();
-                        }
-                }
-        }
-        
-        
-        public long GetProcessedSizeAdd()
-        {
-                return _cacheSize + _position + 4;
-        }
-        
-        
-        
-        static final int kNumMoveReducingBits = 2;
-        public static final int kNumBitPriceShiftBits = 6;
-        
-        public static void InitBitModels(short []probs)
-        {
-                for (int i = 0; i < probs.length; i++)
-                        probs[i] = (kBitModelTotal >>> 1);
-        }
-        
-        public void Encode(short []probs, int index, int symbol) throws IOException
-        {
-                int prob = probs[index];
-                int newBound = (Range >>> kNumBitModelTotalBits) * prob;
-                if (symbol == 0)
-                {
-                        Range = newBound;
-                        probs[index] = (short)(prob + ((kBitModelTotal - prob) >>> kNumMoveBits));
-                }
-                else
-                {
-                        Low += (newBound & 0xFFFFFFFFL);
-                        Range -= newBound;
-                        probs[index] = (short)(prob - ((prob) >>> kNumMoveBits));
-                }
-                if ((Range & kTopMask) == 0)
-                {
-                        Range <<= 8;
-                        ShiftLow();
-                }
-        }
-        
-        private static int[] ProbPrices = new int[kBitModelTotal >>> kNumMoveReducingBits];
-        
-        static
-        {
-                int kNumBits = (kNumBitModelTotalBits - kNumMoveReducingBits);
-                for (int i = kNumBits - 1; i >= 0; i--)
-                {
-                        int start = 1 << (kNumBits - i - 1);
-                        int end = 1 << (kNumBits - i);
-                        for (int j = start; j < end; j++)
-                                ProbPrices[j] = (i << kNumBitPriceShiftBits) +
-                                                (((end - j) << kNumBitPriceShiftBits) >>> (kNumBits - i - 1));
-                }
-        }
-        
-        static public int GetPrice(int Prob, int symbol)
-        {
-                return ProbPrices[(((Prob - symbol) ^ ((-symbol))) & (kBitModelTotal - 1)) >>> kNumMoveReducingBits];
-        }
-        static public int GetPrice0(int Prob)
-        { 
-                return ProbPrices[Prob >>> kNumMoveReducingBits]; 
-        }
-        static public int GetPrice1(int Prob)
-        { 
-                return ProbPrices[(kBitModelTotal - Prob) >>> kNumMoveReducingBits]; 
-        }
-}