3 package SevenZip.Compression.LZMA;
7 public static final int kNumRepDistances = 4;
8 public static final int kNumStates = 12;
10 public static final int StateInit()
15 public static final int StateUpdateChar(int index)
24 public static final int StateUpdateMatch(int index)
26 return (index < 7 ? 7 : 10);
29 public static final int StateUpdateRep(int index)
31 return (index < 7 ? 8 : 11);
34 public static final int StateUpdateShortRep(int index)
36 return (index < 7 ? 9 : 11);
39 public static final boolean StateIsCharState(int index)
44 public static final int kNumPosSlotBits = 6;
45 public static final int kDicLogSizeMin = 0;
46 // public static final int kDicLogSizeMax = 28;
47 // public static final int kDistTableSizeMax = kDicLogSizeMax * 2;
49 public static final int kNumLenToPosStatesBits = 2; // it's for speed optimization
50 public static final int kNumLenToPosStates = 1 << kNumLenToPosStatesBits;
52 public static final int kMatchMinLen = 2;
54 public static final int GetLenToPosState(int len)
57 if (len < kNumLenToPosStates)
59 return (int)(kNumLenToPosStates - 1);
62 public static final int kNumAlignBits = 4;
63 public static final int kAlignTableSize = 1 << kNumAlignBits;
64 public static final int kAlignMask = (kAlignTableSize - 1);
66 public static final int kStartPosModelIndex = 4;
67 public static final int kEndPosModelIndex = 14;
68 public static final int kNumPosModels = kEndPosModelIndex - kStartPosModelIndex;
70 public static final int kNumFullDistances = 1 << (kEndPosModelIndex / 2);
72 public static final int kNumLitPosStatesBitsEncodingMax = 4;
73 public static final int kNumLitContextBitsMax = 8;
75 public static final int kNumPosStatesBitsMax = 4;
76 public static final int kNumPosStatesMax = (1 << kNumPosStatesBitsMax);
77 public static final int kNumPosStatesBitsEncodingMax = 4;
78 public static final int kNumPosStatesEncodingMax = (1 << kNumPosStatesBitsEncodingMax);
80 public static final int kNumLowLenBits = 3;
81 public static final int kNumMidLenBits = 3;
82 public static final int kNumHighLenBits = 8;
83 public static final int kNumLowLenSymbols = 1 << kNumLowLenBits;
84 public static final int kNumMidLenSymbols = 1 << kNumMidLenBits;
85 public static final int kNumLenSymbols = kNumLowLenSymbols + kNumMidLenSymbols +
86 (1 << kNumHighLenBits);
87 public static final int kMatchMaxLen = kMatchMinLen + kNumLenSymbols - 1;