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// Base.java↩
↩
package SevenZip.Compression.LZMA;↩
↩
public class Base↩
{↩
public static final int kNumRepDistances = 4;↩
public static final int kNumStates = 12;↩
↩
public static final int StateInit()↩
{↩
return 0;↩
}↩
↩
public static final int StateUpdateChar(int index)↩
{↩
if (index < 4) ↩
return 0;↩
if (index < 10) ↩
return index - 3;↩
return index - 6;↩
}↩
↩
public static final int StateUpdateMatch(int index)↩
{↩
return (index < 7 ? 7 : 10); ↩
}↩
↩
public static final int StateUpdateRep(int index)↩
{ ↩
return (index < 7 ? 8 : 11); ↩
}↩
↩
public static final int StateUpdateShortRep(int index)↩
{ ↩
return (index < 7 ? 9 : 11); ↩
}↩
↩
public static final boolean StateIsCharState(int index)↩
{ ↩
return index < 7; ↩
}↩
↩
public static final int kNumPosSlotBits = 6;↩
public static final int kDicLogSizeMin = 0;↩
// public static final int kDicLogSizeMax = 28;↩
// public static final int kDistTableSizeMax = kDicLogSizeMax * 2;↩
↩
public static final int kNumLenToPosStatesBits = 2; // it's for speed optimization↩
public static final int kNumLenToPosStates = 1 << kNumLenToPosStatesBits;↩
↩
public static final int kMatchMinLen = 2;↩
↩
public static final int GetLenToPosState(int len)↩
{↩
len -= kMatchMinLen;↩
if (len < kNumLenToPosStates)↩
return len;↩
return (int)(kNumLenToPosStates - 1);↩
}↩
↩
public static final int kNumAlignBits = 4;↩
public static final int kAlignTableSize = 1 << kNumAlignBits;↩
public static final int kAlignMask = (kAlignTableSize - 1);↩
↩
public static final int kStartPosModelIndex = 4;↩
public static final int kEndPosModelIndex = 14;↩
public static final int kNumPosModels = kEndPosModelIndex - kStartPosModelIndex;↩
↩
public static final int kNumFullDistances = 1 << (kEndPosModelIndex / 2);↩
↩
public static final int kNumLitPosStatesBitsEncodingMax = 4;↩
public static final int kNumLitContextBitsMax = 8;↩
↩
public static final int kNumPosStatesBitsMax = 4;↩
public static final int kNumPosStatesMax = (1 << kNumPosStatesBitsMax);↩
public static final int kNumPosStatesBitsEncodingMax = 4;↩
public static final int kNumPosStatesEncodingMax = (1 << kNumPosStatesBitsEncodingMax);↩
↩
public static final int kNumLowLenBits = 3;↩
public static final int kNumMidLenBits = 3;↩
public static final int kNumHighLenBits = 8;↩
public static final int kNumLowLenSymbols = 1 << kNumLowLenBits;↩
public static final int kNumMidLenSymbols = 1 << kNumMidLenBits;↩
public static final int kNumLenSymbols = kNumLowLenSymbols + kNumMidLenSymbols +↩
(1 << kNumHighLenBits);↩
public static final int kMatchMaxLen = kMatchMinLen + kNumLenSymbols - 1;↩
}↩