Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CS/7zip/Compress/LZMA/LzmaDecoder.cs

Index: third_party/lzma/v4_65/files/CS/7zip/Compress/LZMA/LzmaDecoder.cs
diff --git a/third_party/lzma/v4_65/files/CS/7zip/Compress/LZMA/LzmaDecoder.cs b/third_party/lzma/v4_65/files/CS/7zip/Compress/LZMA/LzmaDecoder.cs
deleted file mode 100644
index a9be39fc9e4a6d0419430a0aec28241916d148db..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/CS/7zip/Compress/LZMA/LzmaDecoder.cs
+++ /dev/null
@@ -1,398 +0,0 @@
-// LzmaDecoder.cs
-
-using System;
-
-namespace SevenZip.Compression.LZMA
-{
-	using RangeCoder;
-
-	public class Decoder : ICoder, ISetDecoderProperties // ,System.IO.Stream
-	{
-		class LenDecoder
-		{
-			BitDecoder m_Choice = new BitDecoder();
-			BitDecoder m_Choice2 = new BitDecoder();
-			BitTreeDecoder[] m_LowCoder = new BitTreeDecoder[Base.kNumPosStatesMax];
-			BitTreeDecoder[] m_MidCoder = new BitTreeDecoder[Base.kNumPosStatesMax];
-			BitTreeDecoder m_HighCoder = new BitTreeDecoder(Base.kNumHighLenBits);
-			uint m_NumPosStates = 0;
-
-			public void Create(uint numPosStates)
-			{
-				for (uint posState = m_NumPosStates; posState < numPosStates; posState++)
-				{
-					m_LowCoder[posState] = new BitTreeDecoder(Base.kNumLowLenBits);
-					m_MidCoder[posState] = new BitTreeDecoder(Base.kNumMidLenBits);
-				}
-				m_NumPosStates = numPosStates;
-			}
-
-			public void Init()
-			{
-				m_Choice.Init();
-				for (uint posState = 0; posState < m_NumPosStates; posState++)
-				{
-					m_LowCoder[posState].Init();
-					m_MidCoder[posState].Init();
-				}
-				m_Choice2.Init();
-				m_HighCoder.Init();
-			}
-
-			public uint Decode(RangeCoder.Decoder rangeDecoder, uint posState)
-			{
-				if (m_Choice.Decode(rangeDecoder) == 0)
-					return m_LowCoder[posState].Decode(rangeDecoder);
-				else
-				{
-					uint symbol = Base.kNumLowLenSymbols;
-					if (m_Choice2.Decode(rangeDecoder) == 0)
-						symbol += m_MidCoder[posState].Decode(rangeDecoder);
-					else
-					{
-						symbol += Base.kNumMidLenSymbols;
-						symbol += m_HighCoder.Decode(rangeDecoder);
-					}
-					return symbol;
-				}
-			}
-		}
-
-		class LiteralDecoder
-		{
-			struct Decoder2
-			{
-				BitDecoder[] m_Decoders;
-				public void Create() { m_Decoders = new BitDecoder[0x300]; }
-				public void Init() { for (int i = 0; i < 0x300; i++) m_Decoders[i].Init(); }
-
-				public byte DecodeNormal(RangeCoder.Decoder rangeDecoder)
-				{
-					uint symbol = 1;
-					do
-						symbol = (symbol << 1) | m_Decoders[symbol].Decode(rangeDecoder);
-					while (symbol < 0x100);
-					return (byte)symbol;
-				}
-
-				public byte DecodeWithMatchByte(RangeCoder.Decoder rangeDecoder, byte matchByte)
-				{
-					uint symbol = 1;
-					do
-					{
-						uint matchBit = (uint)(matchByte >> 7) & 1;
-						matchByte <<= 1;
-						uint bit = m_Decoders[((1 + matchBit) << 8) + symbol].Decode(rangeDecoder);
-						symbol = (symbol << 1) | bit;
-						if (matchBit != bit)
-						{
-							while (symbol < 0x100)
-								symbol = (symbol << 1) | m_Decoders[symbol].Decode(rangeDecoder);
-							break;
-						}
-					}
-					while (symbol < 0x100);
-					return (byte)symbol;
-				}
-			}
-
-			Decoder2[] m_Coders;
-			int m_NumPrevBits;
-			int m_NumPosBits;
-			uint m_PosMask;
-
-			public void Create(int numPosBits, int numPrevBits)
-			{
-				if (m_Coders != null && m_NumPrevBits == numPrevBits &&
-					m_NumPosBits == numPosBits)
-					return;
-				m_NumPosBits = numPosBits;
-				m_PosMask = ((uint)1 << numPosBits) - 1;
-				m_NumPrevBits = numPrevBits;
-				uint numStates = (uint)1 << (m_NumPrevBits + m_NumPosBits);
-				m_Coders = new Decoder2[numStates];
-				for (uint i = 0; i < numStates; i++)
-					m_Coders[i].Create();
-			}
-
-			public void Init()
-			{
-				uint numStates = (uint)1 << (m_NumPrevBits + m_NumPosBits);
-				for (uint i = 0; i < numStates; i++)
-					m_Coders[i].Init();
-			}
-
-			uint GetState(uint pos, byte prevByte)
-			{ return ((pos & m_PosMask) << m_NumPrevBits) + (uint)(prevByte >> (8 - m_NumPrevBits)); }
-
-			public byte DecodeNormal(RangeCoder.Decoder rangeDecoder, uint pos, byte prevByte)
-			{ return m_Coders[GetState(pos, prevByte)].DecodeNormal(rangeDecoder); }
-
-			public byte DecodeWithMatchByte(RangeCoder.Decoder rangeDecoder, uint pos, byte prevByte, byte matchByte)
-			{ return m_Coders[GetState(pos, prevByte)].DecodeWithMatchByte(rangeDecoder, matchByte); }
-		};
-
-		LZ.OutWindow m_OutWindow = new LZ.OutWindow();
-		RangeCoder.Decoder m_RangeDecoder = new RangeCoder.Decoder();
-
-		BitDecoder[] m_IsMatchDecoders = new BitDecoder[Base.kNumStates << Base.kNumPosStatesBitsMax];
-		BitDecoder[] m_IsRepDecoders = new BitDecoder[Base.kNumStates];
-		BitDecoder[] m_IsRepG0Decoders = new BitDecoder[Base.kNumStates];
-		BitDecoder[] m_IsRepG1Decoders = new BitDecoder[Base.kNumStates];
-		BitDecoder[] m_IsRepG2Decoders = new BitDecoder[Base.kNumStates];
-		BitDecoder[] m_IsRep0LongDecoders = new BitDecoder[Base.kNumStates << Base.kNumPosStatesBitsMax];
-
-		BitTreeDecoder[] m_PosSlotDecoder = new BitTreeDecoder[Base.kNumLenToPosStates];
-		BitDecoder[] m_PosDecoders = new BitDecoder[Base.kNumFullDistances - Base.kEndPosModelIndex];
-
-		BitTreeDecoder m_PosAlignDecoder = new BitTreeDecoder(Base.kNumAlignBits);
-
-		LenDecoder m_LenDecoder = new LenDecoder();
-		LenDecoder m_RepLenDecoder = new LenDecoder();
-
-		LiteralDecoder m_LiteralDecoder = new LiteralDecoder();
-
-		uint m_DictionarySize;
-		uint m_DictionarySizeCheck;
-
-		uint m_PosStateMask;
-
-		public Decoder()
-		{
-			m_DictionarySize = 0xFFFFFFFF;
-			for (int i = 0; i < Base.kNumLenToPosStates; i++)
-				m_PosSlotDecoder[i] = new BitTreeDecoder(Base.kNumPosSlotBits);
-		}
-
-		void SetDictionarySize(uint dictionarySize)
-		{
-			if (m_DictionarySize != dictionarySize)
-			{
-				m_DictionarySize = dictionarySize;
-				m_DictionarySizeCheck = Math.Max(m_DictionarySize, 1);
-				uint blockSize = Math.Max(m_DictionarySizeCheck, (1 << 12));
-				m_OutWindow.Create(blockSize);
-			}
-		}
-
-		void SetLiteralProperties(int lp, int lc)
-		{
-			if (lp > 8)
-				throw new InvalidParamException();
-			if (lc > 8)
-				throw new InvalidParamException();
-			m_LiteralDecoder.Create(lp, lc);
-		}
-
-		void SetPosBitsProperties(int pb)
-		{
-			if (pb > Base.kNumPosStatesBitsMax)
-				throw new InvalidParamException();
-			uint numPosStates = (uint)1 << pb;
-			m_LenDecoder.Create(numPosStates);
-			m_RepLenDecoder.Create(numPosStates);
-			m_PosStateMask = numPosStates - 1;
-		}
-
-		bool _solid = false;
-		void Init(System.IO.Stream inStream, System.IO.Stream outStream)
-		{
-			m_RangeDecoder.Init(inStream);
-			m_OutWindow.Init(outStream, _solid);
-
-			uint i;
-			for (i = 0; i < Base.kNumStates; i++)
-			{
-				for (uint j = 0; j <= m_PosStateMask; j++)
-				{
-					uint index = (i << Base.kNumPosStatesBitsMax) + j;
-					m_IsMatchDecoders[index].Init();
-					m_IsRep0LongDecoders[index].Init();
-				}
-				m_IsRepDecoders[i].Init();
-				m_IsRepG0Decoders[i].Init();
-				m_IsRepG1Decoders[i].Init();
-				m_IsRepG2Decoders[i].Init();
-			}
-
-			m_LiteralDecoder.Init();
-			for (i = 0; i < Base.kNumLenToPosStates; i++)
-				m_PosSlotDecoder[i].Init();
-			// m_PosSpecDecoder.Init();
-			for (i = 0; i < Base.kNumFullDistances - Base.kEndPosModelIndex; i++)
-				m_PosDecoders[i].Init();
-
-			m_LenDecoder.Init();
-			m_RepLenDecoder.Init();
-			m_PosAlignDecoder.Init();
-		}
-
-		public void Code(System.IO.Stream inStream, System.IO.Stream outStream,
-			Int64 inSize, Int64 outSize, ICodeProgress progress)
-		{
-			Init(inStream, outStream);
-
-			Base.State state = new Base.State();
-			state.Init();
-			uint rep0 = 0, rep1 = 0, rep2 = 0, rep3 = 0;
-
-			UInt64 nowPos64 = 0;
-			UInt64 outSize64 = (UInt64)outSize;
-			if (nowPos64 < outSize64)
-			{
-				if (m_IsMatchDecoders[state.Index << Base.kNumPosStatesBitsMax].Decode(m_RangeDecoder) != 0)
-					throw new DataErrorException();
-				state.UpdateChar();
-				byte b = m_LiteralDecoder.DecodeNormal(m_RangeDecoder, 0, 0);
-				m_OutWindow.PutByte(b);
-				nowPos64++;
-			}
-			while (nowPos64 < outSize64)
-			{
-				// UInt64 next = Math.Min(nowPos64 + (1 << 18), outSize64);
-					// while(nowPos64 < next)
-				{
-					uint posState = (uint)nowPos64 & m_PosStateMask;
-					if (m_IsMatchDecoders[(state.Index << Base.kNumPosStatesBitsMax) + posState].Decode(m_RangeDecoder) == 0)
-					{
-						byte b;
-						byte prevByte = m_OutWindow.GetByte(0);
-						if (!state.IsCharState())
-							b = m_LiteralDecoder.DecodeWithMatchByte(m_RangeDecoder,
-								(uint)nowPos64, prevByte, m_OutWindow.GetByte(rep0));
-						else
-							b = m_LiteralDecoder.DecodeNormal(m_RangeDecoder, (uint)nowPos64, prevByte);
-						m_OutWindow.PutByte(b);
-						state.UpdateChar();
-						nowPos64++;
-					}
-					else
-					{
-						uint len;
-						if (m_IsRepDecoders[state.Index].Decode(m_RangeDecoder) == 1)
-						{
-							if (m_IsRepG0Decoders[state.Index].Decode(m_RangeDecoder) == 0)
-							{
-								if (m_IsRep0LongDecoders[(state.Index << Base.kNumPosStatesBitsMax) + posState].Decode(m_RangeDecoder) == 0)
-								{
-									state.UpdateShortRep();
-									m_OutWindow.PutByte(m_OutWindow.GetByte(rep0));
-									nowPos64++;
-									continue;
-								}
-							}
-							else
-							{
-								UInt32 distance;
-								if (m_IsRepG1Decoders[state.Index].Decode(m_RangeDecoder) == 0)
-								{
-									distance = rep1;
-								}
-								else
-								{
-									if (m_IsRepG2Decoders[state.Index].Decode(m_RangeDecoder) == 0)
-										distance = rep2;
-									else
-									{
-										distance = rep3;
-										rep3 = rep2;
-									}
-									rep2 = rep1;
-								}
-								rep1 = rep0;
-								rep0 = distance;
-							}
-							len = m_RepLenDecoder.Decode(m_RangeDecoder, posState) + Base.kMatchMinLen;
-							state.UpdateRep();
-						}
-						else
-						{
-							rep3 = rep2;
-							rep2 = rep1;
-							rep1 = rep0;
-							len = Base.kMatchMinLen + m_LenDecoder.Decode(m_RangeDecoder, posState);
-							state.UpdateMatch();
-							uint posSlot = m_PosSlotDecoder[Base.GetLenToPosState(len)].Decode(m_RangeDecoder);
-							if (posSlot >= Base.kStartPosModelIndex)
-							{
-								int numDirectBits = (int)((posSlot >> 1) - 1);
-								rep0 = ((2 | (posSlot & 1)) << numDirectBits);
-								if (posSlot < Base.kEndPosModelIndex)
-									rep0 += BitTreeDecoder.ReverseDecode(m_PosDecoders,
-											rep0 - posSlot - 1, m_RangeDecoder, numDirectBits);
-								else
-								{
-									rep0 += (m_RangeDecoder.DecodeDirectBits(
-										numDirectBits - Base.kNumAlignBits) << Base.kNumAlignBits);
-									rep0 += m_PosAlignDecoder.ReverseDecode(m_RangeDecoder);
-								}
-							}
-							else
-								rep0 = posSlot;
-						}
-						if (rep0 >= m_OutWindow.TrainSize + nowPos64 || rep0 >= m_DictionarySizeCheck)
-						{
-							if (rep0 == 0xFFFFFFFF)
-								break;
-							throw new DataErrorException();
-						}
-						m_OutWindow.CopyBlock(rep0, len);
-						nowPos64 += len;
-					}
-				}
-			}
-			m_OutWindow.Flush();
-			m_OutWindow.ReleaseStream();
-			m_RangeDecoder.ReleaseStream();
-		}
-
-		public void SetDecoderProperties(byte[] properties)
-		{
-			if (properties.Length < 5)
-				throw new InvalidParamException();
-			int lc = properties[0] % 9;
-			int remainder = properties[0] / 9;
-			int lp = remainder % 5;
-			int pb = remainder / 5;
-			if (pb > Base.kNumPosStatesBitsMax)
-				throw new InvalidParamException();
-			UInt32 dictionarySize = 0;
-			for (int i = 0; i < 4; i++)
-				dictionarySize += ((UInt32)(properties[1 + i])) << (i * 8);
-			SetDictionarySize(dictionarySize);
-			SetLiteralProperties(lp, lc);
-			SetPosBitsProperties(pb);
-		}
-
-		public bool Train(System.IO.Stream stream)
-		{
-			_solid = true;
-			return m_OutWindow.Train(stream);
-		}
-
-		/*
-		public override bool CanRead { get { return true; }}
-		public override bool CanWrite { get { return true; }}
-		public override bool CanSeek { get { return true; }}
-		public override long Length { get { return 0; }}
-		public override long Position
-		{
-			get { return 0;	}
-			set { }
-		}
-		public override void Flush() { }
-		public override int Read(byte[] buffer, int offset, int count) 
-		{
-			return 0;
-		}
-		public override void Write(byte[] buffer, int offset, int count)
-		{
-		}
-		public override long Seek(long offset, System.IO.SeekOrigin origin)
-		{
-			return 0;
-		}
-		public override void SetLength(long value) {}
-		*/
-	}
-}