PhysicsFS 2.0.3 imported.

lib/physfs-2.0.3/lzma/CPP/7zip/Compress/RangeCoder/RangeCoder.h

@@ -0,0 +1,205 @@
+// Compress/RangeCoder/RangeCoder.h
+
+#ifndef __COMPRESS_RANGECODER_H
+#define __COMPRESS_RANGECODER_H
+
+#include "../../Common/InBuffer.h"
+#include "../../Common/OutBuffer.h"
+
+namespace NCompress {
+namespace NRangeCoder {
+
+const int kNumTopBits = 24;
+const UInt32 kTopValue = (1 << kNumTopBits);
+
+class CEncoder
+{
+  UInt32 _cacheSize;
+  Byte _cache;
+public:
+  UInt64 Low;
+  UInt32 Range;
+  COutBuffer Stream;
+  bool Create(UInt32 bufferSize) { return Stream.Create(bufferSize); }
+
+  void SetStream(ISequentialOutStream *stream) { Stream.SetStream(stream); }
+  void Init()
+  {
+    Stream.Init();
+    Low = 0;
+    Range = 0xFFFFFFFF;
+    _cacheSize = 1;
+    _cache = 0;
+  }
+
+  void FlushData()
+  {
+    // Low += 1; 
+    for(int i = 0; i < 5; i++)
+      ShiftLow();
+  }
+
+  HRESULT FlushStream() { return Stream.Flush();  }
+
+  void ReleaseStream() { Stream.ReleaseStream(); }
+
+  void Encode(UInt32 start, UInt32 size, UInt32 total)
+  {
+    Low += start * (Range /= total);
+    Range *= size;
+    while (Range < kTopValue)
+    {
+      Range <<= 8;
+      ShiftLow();
+    }
+  }
+
+  void ShiftLow()
+  {
+    if ((UInt32)Low < (UInt32)0xFF000000 || (int)(Low >> 32) != 0) 
+    {
+      Byte temp = _cache;
+      do
+      {
+        Stream.WriteByte((Byte)(temp + (Byte)(Low >> 32)));
+        temp = 0xFF;
+      }
+      while(--_cacheSize != 0);
+      _cache = (Byte)((UInt32)Low >> 24);                      
+    } 
+    _cacheSize++;                               
+    Low = (UInt32)Low << 8;                           
+  }
+  
+  void EncodeDirectBits(UInt32 value, int numTotalBits)
+  {
+    for (int i = numTotalBits - 1; i >= 0; i--)
+    {
+      Range >>= 1;
+      if (((value >> i) & 1) == 1)
+        Low += Range;
+      if (Range < kTopValue)
+      {
+        Range <<= 8;
+        ShiftLow();
+      }
+    }
+  }
+
+  void EncodeBit(UInt32 size0, UInt32 numTotalBits, UInt32 symbol)
+  {
+    UInt32 newBound = (Range >> numTotalBits) * size0;
+    if (symbol == 0)
+      Range = newBound;
+    else
+    {
+      Low += newBound;
+      Range -= newBound;
+    }
+    while (Range < kTopValue)
+    {
+      Range <<= 8;
+      ShiftLow();
+    }
+  }
+
+  UInt64 GetProcessedSize() {  return Stream.GetProcessedSize() + _cacheSize + 4; }
+};
+
+class CDecoder
+{
+public:
+  CInBuffer Stream;
+  UInt32 Range;
+  UInt32 Code;
+  bool Create(UInt32 bufferSize) { return Stream.Create(bufferSize); }
+
+  void Normalize()
+  {
+    while (Range < kTopValue)
+    {
+      Code = (Code << 8) | Stream.ReadByte();
+      Range <<= 8;
+    }
+  }
+  
+  void SetStream(ISequentialInStream *stream) { Stream.SetStream(stream); }
+  void Init()
+  {
+    Stream.Init();
+    Code = 0;
+    Range = 0xFFFFFFFF;
+    for(int i = 0; i < 5; i++)
+      Code = (Code << 8) | Stream.ReadByte();
+  }
+
+  void ReleaseStream() { Stream.ReleaseStream(); }
+
+  UInt32 GetThreshold(UInt32 total)
+  {
+    return (Code) / ( Range /= total);
+  }
+
+  void Decode(UInt32 start, UInt32 size)
+  {
+    Code -= start * Range;
+    Range *= size;
+    Normalize();
+  }
+
+  UInt32 DecodeDirectBits(int numTotalBits)
+  {
+    UInt32 range = Range;
+    UInt32 code = Code;        
+    UInt32 result = 0;
+    for (int i = numTotalBits; i != 0; i--)
+    {
+      range >>= 1;
+      /*
+      result <<= 1;
+      if (code >= range)
+      {
+        code -= range;
+        result |= 1;
+      }
+      */
+      UInt32 t = (code - range) >> 31;
+      code -= range & (t - 1);
+      result = (result << 1) | (1 - t);
+
+      if (range < kTopValue)
+      {
+        code = (code << 8) | Stream.ReadByte();
+        range <<= 8; 
+      }
+    }
+    Range = range;
+    Code = code;
+    return result;
+  }
+
+  UInt32 DecodeBit(UInt32 size0, UInt32 numTotalBits)
+  {
+    UInt32 newBound = (Range >> numTotalBits) * size0;
+    UInt32 symbol;
+    if (Code < newBound)
+    {
+      symbol = 0;
+      Range = newBound;
+    }
+    else
+    {
+      symbol = 1;
+      Code -= newBound;
+      Range -= newBound;
+    }
+    Normalize();
+    return symbol;
+  }
+
+  UInt64 GetProcessedSize() {return Stream.GetProcessedSize(); }
+};
+
+}}
+
+#endif

lib/physfs-2.0.3/lzma/CPP/7zip/Compress/RangeCoder/RangeCoderBit.cpp

@@ -0,0 +1,80 @@
+// Compress/RangeCoder/RangeCoderBit.cpp
+
+#include "StdAfx.h"
+
+#include "RangeCoderBit.h"
+
+namespace NCompress {
+namespace NRangeCoder {
+
+UInt32 CPriceTables::ProbPrices[kBitModelTotal >> kNumMoveReducingBits];
+static CPriceTables g_PriceTables;
+
+CPriceTables::CPriceTables() { Init(); }
+
+void CPriceTables::Init()
+{
+  const int kNumBits = (kNumBitModelTotalBits - kNumMoveReducingBits);
+  for(int i = kNumBits - 1; i >= 0; i--)
+  {
+    UInt32 start = 1 << (kNumBits - i - 1);
+    UInt32 end = 1 << (kNumBits - i);
+    for (UInt32 j = start; j < end; j++)
+      ProbPrices[j] = (i << kNumBitPriceShiftBits) + 
+          (((end - j) << kNumBitPriceShiftBits) >> (kNumBits - i - 1));
+  }
+
+  /*
+  // simplest: bad solution
+  for(UInt32 i = 1; i < (kBitModelTotal >> kNumMoveReducingBits) - 1; i++)
+    ProbPrices[i] = kBitPrice;
+  */
+  
+  /*
+  const double kDummyMultMid = (1.0 / kBitPrice) / 2;
+  const double kDummyMultMid = 0;
+  // float solution
+  double ln2 = log(double(2));
+  double lnAll = log(double(kBitModelTotal >> kNumMoveReducingBits));
+  for(UInt32 i = 1; i < (kBitModelTotal >> kNumMoveReducingBits) - 1; i++)
+    ProbPrices[i] = UInt32((fabs(lnAll - log(double(i))) / ln2 + kDummyMultMid) * kBitPrice);
+  */
+  
+  /*
+  // experimental, slow, solution:
+  for(UInt32 i = 1; i < (kBitModelTotal >> kNumMoveReducingBits) - 1; i++)
+  {
+    const int kCyclesBits = 5;
+    const UInt32 kCycles = (1 << kCyclesBits);
+
+    UInt32 range = UInt32(-1);
+    UInt32 bitCount = 0;
+    for (UInt32 j = 0; j < kCycles; j++)
+    {
+      range >>= (kNumBitModelTotalBits - kNumMoveReducingBits);
+      range *= i;
+      while(range < (1 << 31))
+      {
+        range <<= 1;
+        bitCount++;
+      }
+    }
+    bitCount <<= kNumBitPriceShiftBits;
+    range -= (1 << 31);
+    for (int k = kNumBitPriceShiftBits - 1; k >= 0; k--)
+    {
+      range <<= 1;
+      if (range > (1 << 31))
+      {
+        bitCount += (1 << k);
+        range -= (1 << 31);
+      }
+    }
+    ProbPrices[i] = (bitCount 
+      // + (1 << (kCyclesBits - 1))
+      ) >> kCyclesBits;
+  }
+  */
+}
+
+}}

lib/physfs-2.0.3/lzma/CPP/7zip/Compress/RangeCoder/RangeCoderBit.h

@@ -0,0 +1,120 @@
+// Compress/RangeCoder/RangeCoderBit.h
+
+#ifndef __COMPRESS_RANGECODER_BIT_H
+#define __COMPRESS_RANGECODER_BIT_H
+
+#include "RangeCoder.h"
+
+namespace NCompress {
+namespace NRangeCoder {
+
+const int kNumBitModelTotalBits  = 11;
+const UInt32 kBitModelTotal = (1 << kNumBitModelTotalBits);
+
+const int kNumMoveReducingBits = 2;
+
+const int kNumBitPriceShiftBits = 6;
+const UInt32 kBitPrice = 1 << kNumBitPriceShiftBits;
+
+class CPriceTables
+{
+public:
+  static UInt32 ProbPrices[kBitModelTotal >> kNumMoveReducingBits];
+  static void Init();
+  CPriceTables();
+};
+
+template <int numMoveBits>
+class CBitModel
+{
+public:
+  UInt32 Prob;
+  void UpdateModel(UInt32 symbol)
+  {
+    /*
+    Prob -= (Prob + ((symbol - 1) & ((1 << numMoveBits) - 1))) >> numMoveBits;
+    Prob += (1 - symbol) << (kNumBitModelTotalBits - numMoveBits);
+    */
+    if (symbol == 0)
+      Prob += (kBitModelTotal - Prob) >> numMoveBits;
+    else
+      Prob -= (Prob) >> numMoveBits;
+  }
+public:
+  void Init() { Prob = kBitModelTotal / 2; }
+};
+
+template <int numMoveBits>
+class CBitEncoder: public CBitModel<numMoveBits>
+{
+public:
+  void Encode(CEncoder *encoder, UInt32 symbol)
+  {
+    /*
+    encoder->EncodeBit(this->Prob, kNumBitModelTotalBits, symbol);
+    this->UpdateModel(symbol);
+    */
+    UInt32 newBound = (encoder->Range >> kNumBitModelTotalBits) * this->Prob;
+    if (symbol == 0)
+    {
+      encoder->Range = newBound;
+      this->Prob += (kBitModelTotal - this->Prob) >> numMoveBits;
+    }
+    else
+    {
+      encoder->Low += newBound;
+      encoder->Range -= newBound;
+      this->Prob -= (this->Prob) >> numMoveBits;
+    }
+    if (encoder->Range < kTopValue)
+    {
+      encoder->Range <<= 8;
+      encoder->ShiftLow();
+    }
+  }
+  UInt32 GetPrice(UInt32 symbol) const
+  {
+    return CPriceTables::ProbPrices[
+      (((this->Prob - symbol) ^ ((-(int)symbol))) & (kBitModelTotal - 1)) >> kNumMoveReducingBits];
+  }
+  UInt32 GetPrice0() const { return CPriceTables::ProbPrices[this->Prob >> kNumMoveReducingBits]; }
+  UInt32 GetPrice1() const { return CPriceTables::ProbPrices[(kBitModelTotal - this->Prob) >> kNumMoveReducingBits]; }
+};
+
+
+template <int numMoveBits>
+class CBitDecoder: public CBitModel<numMoveBits>
+{
+public:
+  UInt32 Decode(CDecoder *decoder)
+  {
+    UInt32 newBound = (decoder->Range >> kNumBitModelTotalBits) * this->Prob;
+    if (decoder->Code < newBound)
+    {
+      decoder->Range = newBound;
+      this->Prob += (kBitModelTotal - this->Prob) >> numMoveBits;
+      if (decoder->Range < kTopValue)
+      {
+        decoder->Code = (decoder->Code << 8) | decoder->Stream.ReadByte();
+        decoder->Range <<= 8;
+      }
+      return 0;
+    }
+    else
+    {
+      decoder->Range -= newBound;
+      decoder->Code -= newBound;
+      this->Prob -= (this->Prob) >> numMoveBits;
+      if (decoder->Range < kTopValue)
+      {
+        decoder->Code = (decoder->Code << 8) | decoder->Stream.ReadByte();
+        decoder->Range <<= 8;
+      }
+      return 1;
+    }
+  }
+};
+
+}}
+
+#endif

lib/physfs-2.0.3/lzma/CPP/7zip/Compress/RangeCoder/RangeCoderBitTree.h

@@ -0,0 +1,161 @@
+// Compress/RangeCoder/RangeCoderBitTree.h
+
+#ifndef __COMPRESS_RANGECODER_BIT_TREE_H
+#define __COMPRESS_RANGECODER_BIT_TREE_H
+
+#include "RangeCoderBit.h"
+#include "RangeCoderOpt.h"
+
+namespace NCompress {
+namespace NRangeCoder {
+
+template <int numMoveBits, int NumBitLevels>
+class CBitTreeEncoder
+{
+  CBitEncoder<numMoveBits> Models[1 << NumBitLevels];
+public:
+  void Init()
+  {
+    for(UInt32 i = 1; i < (1 << NumBitLevels); i++)
+      Models[i].Init();
+  }
+  void Encode(CEncoder *rangeEncoder, UInt32 symbol)
+  {
+    UInt32 modelIndex = 1;
+    for (int bitIndex = NumBitLevels; bitIndex != 0 ;)
+    {
+      bitIndex--;
+      UInt32 bit = (symbol >> bitIndex) & 1;
+      Models[modelIndex].Encode(rangeEncoder, bit);
+      modelIndex = (modelIndex << 1) | bit;
+    }
+  };
+  void ReverseEncode(CEncoder *rangeEncoder, UInt32 symbol)
+  {
+    UInt32 modelIndex = 1;
+    for (int i = 0; i < NumBitLevels; i++)
+    {
+      UInt32 bit = symbol & 1;
+      Models[modelIndex].Encode(rangeEncoder, bit);
+      modelIndex = (modelIndex << 1) | bit;
+      symbol >>= 1;
+    }
+  }
+  UInt32 GetPrice(UInt32 symbol) const
+  {
+    symbol |= (1 << NumBitLevels);
+    UInt32 price = 0;
+    while (symbol != 1)
+    {
+      price += Models[symbol >> 1].GetPrice(symbol & 1);
+      symbol >>= 1;
+    }
+    return price;
+  }
+  UInt32 ReverseGetPrice(UInt32 symbol) const
+  {
+    UInt32 price = 0;
+    UInt32 modelIndex = 1;
+    for (int i = NumBitLevels; i != 0; i--)
+    {
+      UInt32 bit = symbol & 1;
+      symbol >>= 1;
+      price += Models[modelIndex].GetPrice(bit);
+      modelIndex = (modelIndex << 1) | bit;
+    }
+    return price;
+  }
+};
+
+template <int numMoveBits, int NumBitLevels>
+class CBitTreeDecoder
+{
+  CBitDecoder<numMoveBits> Models[1 << NumBitLevels];
+public:
+  void Init()
+  {
+    for(UInt32 i = 1; i < (1 << NumBitLevels); i++)
+      Models[i].Init();
+  }
+  UInt32 Decode(CDecoder *rangeDecoder)
+  {
+    UInt32 modelIndex = 1;
+    RC_INIT_VAR
+    for(int bitIndex = NumBitLevels; bitIndex != 0; bitIndex--)
+    {
+      // modelIndex = (modelIndex << 1) + Models[modelIndex].Decode(rangeDecoder);
+      RC_GETBIT(numMoveBits, Models[modelIndex].Prob, modelIndex)
+    }
+    RC_FLUSH_VAR
+    return modelIndex - (1 << NumBitLevels);
+  };
+  UInt32 ReverseDecode(CDecoder *rangeDecoder)
+  {
+    UInt32 modelIndex = 1;
+    UInt32 symbol = 0;
+    RC_INIT_VAR
+    for(int bitIndex = 0; bitIndex < NumBitLevels; bitIndex++)
+    {
+      // UInt32 bit = Models[modelIndex].Decode(rangeDecoder);
+      // modelIndex <<= 1;
+      // modelIndex += bit;
+      // symbol |= (bit << bitIndex);
+      RC_GETBIT2(numMoveBits, Models[modelIndex].Prob, modelIndex, ; , symbol |= (1 << bitIndex))
+    }
+    RC_FLUSH_VAR
+    return symbol;
+  }
+};
+
+template <int numMoveBits>
+void ReverseBitTreeEncode(CBitEncoder<numMoveBits> *Models, 
+    CEncoder *rangeEncoder, int NumBitLevels, UInt32 symbol)
+{
+  UInt32 modelIndex = 1;
+  for (int i = 0; i < NumBitLevels; i++)
+  {
+    UInt32 bit = symbol & 1;
+    Models[modelIndex].Encode(rangeEncoder, bit);
+    modelIndex = (modelIndex << 1) | bit;
+    symbol >>= 1;
+  }
+}
+
+template <int numMoveBits>
+UInt32 ReverseBitTreeGetPrice(CBitEncoder<numMoveBits> *Models, 
+    UInt32 NumBitLevels, UInt32 symbol)
+{
+  UInt32 price = 0;
+  UInt32 modelIndex = 1;
+  for (int i = NumBitLevels; i != 0; i--)
+  {
+    UInt32 bit = symbol & 1;
+    symbol >>= 1;
+    price += Models[modelIndex].GetPrice(bit);
+    modelIndex = (modelIndex << 1) | bit;
+  }
+  return price;
+}
+
+template <int numMoveBits>
+UInt32 ReverseBitTreeDecode(CBitDecoder<numMoveBits> *Models, 
+    CDecoder *rangeDecoder, int NumBitLevels)
+{
+  UInt32 modelIndex = 1;
+  UInt32 symbol = 0;
+  RC_INIT_VAR
+  for(int bitIndex = 0; bitIndex < NumBitLevels; bitIndex++)
+  {
+    // UInt32 bit = Models[modelIndex].Decode(rangeDecoder);
+    // modelIndex <<= 1;
+    // modelIndex += bit;
+    // symbol |= (bit << bitIndex);
+    RC_GETBIT2(numMoveBits, Models[modelIndex].Prob, modelIndex, ; , symbol |= (1 << bitIndex))
+  }
+  RC_FLUSH_VAR
+  return symbol;
+}
+
+}}
+
+#endif

lib/physfs-2.0.3/lzma/CPP/7zip/Compress/RangeCoder/RangeCoderOpt.h

@@ -0,0 +1,31 @@
+// Compress/RangeCoder/RangeCoderOpt.h
+
+#ifndef __COMPRESS_RANGECODER_OPT_H
+#define __COMPRESS_RANGECODER_OPT_H
+
+#define RC_INIT_VAR \
+  UInt32 range = rangeDecoder->Range; \
+  UInt32 code = rangeDecoder->Code;        
+
+#define RC_FLUSH_VAR \
+  rangeDecoder->Range = range; \
+  rangeDecoder->Code = code;
+
+#define RC_NORMALIZE \
+  if (range < NCompress::NRangeCoder::kTopValue) \
+    { code = (code << 8) | rangeDecoder->Stream.ReadByte(); range <<= 8; }
+
+#define RC_GETBIT2(numMoveBits, prob, mi, A0, A1) \
+  { UInt32 bound = (range >> NCompress::NRangeCoder::kNumBitModelTotalBits) * prob; \
+  if (code < bound) \
+  { A0; range = bound; \
+    prob += (NCompress::NRangeCoder::kBitModelTotal - prob) >> numMoveBits; \
+    mi <<= 1; } \
+  else \
+  { A1; range -= bound; code -= bound; prob -= (prob) >> numMoveBits; \
+    mi = (mi + mi) + 1; }} \
+  RC_NORMALIZE
+
+#define RC_GETBIT(numMoveBits, prob, mi) RC_GETBIT2(numMoveBits, prob, mi, ; , ;)
+
+#endif

lib/physfs-2.0.3/lzma/CPP/7zip/Compress/RangeCoder/StdAfx.h

@@ -0,0 +1,6 @@
+// StdAfx.h
+
+#ifndef __STDAFX_H
+#define __STDAFX_H
+
+#endif