--- a/misc/libphysfs/lzma/Java/SevenZip/Compression/RangeCoder/Encoder.java Thu Oct 11 23:43:31 2018 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,151 +0,0 @@
-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];
- }
-}