misc/libphysfs/lzma/Java/SevenZip/Compression/LZMA/Base.java
changeset 12213 bb5522e88ab2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/Java/SevenZip/Compression/LZMA/Base.java	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,88 @@
+// 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;
+}