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JBrowser Source Code Files
JBrowser Source Code Files are provided in the source package file.
You can download JBrowser source package as described in the previous tutorial and go to the "src" sub-folder to view Source Code files.
You can also browse JBrowser Source Code files below:
✍: FYIcenter
⏎ ru/atomation/utils/sevenzip/compression/rangecoder/Encoder.java
package ru.atomation.utils.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]; } }
⏎ ru/atomation/utils/sevenzip/compression/rangecoder/Encoder.java
Or download all of them as a single archive file:
File name: jbrowser-1.9-fyi.zip File size: 625318 bytes Release date: 2022-11-10 Download
⇐ Download and Install JBrowser Source Package
2017-07-17, 8521👍, 1💬
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