3.13

7zip/Compress/Implode/DllExports.cpp

@@ -0,0 +1,66 @@
+// DLLExports.cpp
+
+#include "StdAfx.h"
+
+#define INITGUID
+
+#include "Common/ComTry.h"
+#include "ImplodeDecoder.h"
+
+// {23170F69-40C1-278B-0401-060000000000}
+DEFINE_GUID(CLSID_CCompressImplodeDecoder, 
+0x23170F69, 0x40C1, 0x278B, 0x04, 0x01, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00);
+
+extern "C"
+BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
+{
+	return TRUE;
+}
+
+STDAPI CreateObject(const GUID *clsid, const GUID *iid, void **outObject)
+{
+  COM_TRY_BEGIN
+  *outObject = 0;
+  if (*clsid != CLSID_CCompressImplodeDecoder)
+    return CLASS_E_CLASSNOTAVAILABLE;
+  if (*iid != IID_ICompressCoder)
+    return E_NOINTERFACE;
+  CMyComPtr<ICompressCoder> coder = (ICompressCoder *)new 
+      NCompress::NImplode::NDecoder::CCoder;
+  *outObject = coder.Detach();
+  COM_TRY_END
+  return S_OK;
+}
+
+STDAPI GetNumberOfMethods(UINT32 *numMethods)
+{
+  *numMethods = 1;
+  return S_OK;
+}
+
+STDAPI GetMethodProperty(UINT32 index, PROPID propID, PROPVARIANT *value)
+{
+  if (index != 0)
+    return E_INVALIDARG;
+  ::VariantClear((tagVARIANT *)value);
+  switch(propID)
+  {
+    case NMethodPropID::kID:
+    {
+      const char id[] = { 0x04, 0x01, 0x06 };
+      if ((value->bstrVal = ::SysAllocStringByteLen(id, sizeof(id))) != 0)
+        value->vt = VT_BSTR;
+      return S_OK;
+    }
+    case NMethodPropID::kName:
+      if ((value->bstrVal = ::SysAllocString(L"Implode")) != 0)
+        value->vt = VT_BSTR;
+      return S_OK;
+    case NMethodPropID::kDecoder:
+      if ((value->bstrVal = ::SysAllocStringByteLen(
+          (const char *)&CLSID_CCompressImplodeDecoder, sizeof(GUID))) != 0)
+        value->vt = VT_BSTR;
+      return S_OK;
+  }
+  return S_OK;
+}

7zip/Compress/Implode/Implode.def

@@ -0,0 +1,9 @@
+; Implode.def
+
+LIBRARY Implode.dll
+
+EXPORTS
+  CreateObject PRIVATE
+  GetNumberOfMethods PRIVATE
+  GetMethodProperty PRIVATE
+

7zip/Compress/Implode/Implode.dsp

@@ -0,0 +1,181 @@
+# Microsoft Developer Studio Project File - Name="Implode" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102
+
+CFG=Implode - Win32 Debug
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE 
+!MESSAGE NMAKE /f "Implode.mak".
+!MESSAGE 
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE 
+!MESSAGE NMAKE /f "Implode.mak" CFG="Implode - Win32 Debug"
+!MESSAGE 
+!MESSAGE Possible choices for configuration are:
+!MESSAGE 
+!MESSAGE "Implode - Win32 Release" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "Implode - Win32 Debug" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE 
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""
+# PROP Scc_LocalPath ""
+CPP=cl.exe
+MTL=midl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "Implode - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Ignore_Export_Lib 1
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "IMPLODE_EXPORTS" /YX /FD /c
+# ADD CPP /nologo /Gz /MD /W3 /GX /O1 /I "..\..\..\\" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "IMPLODE_EXPORTS" /Yu"StdAfx.h" /FD /c
+# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
+# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
+# ADD BASE RSC /l 0x419 /d "NDEBUG"
+# ADD RSC /l 0x419 /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /machine:I386
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /machine:I386 /out:"C:\Program Files\7-Zip\Codecs\Implode.dll" /opt:NOWIN98
+# SUBTRACT LINK32 /pdb:none
+
+!ELSEIF  "$(CFG)" == "Implode - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Ignore_Export_Lib 1
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "IMPLODE_EXPORTS" /YX /FD /GZ /c
+# ADD CPP /nologo /Gz /MTd /W3 /Gm /GX /ZI /Od /I "..\..\..\\" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "IMPLODE_EXPORTS" /Yu"StdAfx.h" /FD /GZ /c
+# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
+# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
+# ADD BASE RSC /l 0x419 /d "_DEBUG"
+# ADD RSC /l 0x419 /d "_DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /debug /machine:I386 /out:"C:\Program Files\7-Zip\Codecs\Implode.dll" /pdbtype:sept
+
+!ENDIF 
+
+# Begin Target
+
+# Name "Implode - Win32 Release"
+# Name "Implode - Win32 Debug"
+# Begin Group "Spec"
+
+# PROP Default_Filter ""
+# Begin Source File
+
+SOURCE=.\DllExports.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\Implode.def
+# End Source File
+# Begin Source File
+
+SOURCE=.\resource.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\resource.rc
+# End Source File
+# Begin Source File
+
+SOURCE=.\StdAfx.cpp
+# ADD CPP /Yc"StdAfx.h"
+# End Source File
+# Begin Source File
+
+SOURCE=.\StdAfx.h
+# End Source File
+# End Group
+# Begin Group "7zip Common"
+
+# PROP Default_Filter ""
+# Begin Source File
+
+SOURCE=..\..\Common\InBuffer.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Common\InBuffer.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Common\LSBFDecoder.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Common\LSBFDecoder.h
+# End Source File
+# End Group
+# Begin Group "Common"
+
+# PROP Default_Filter ""
+# Begin Source File
+
+SOURCE=..\..\..\Common\NewHandler.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\Common\NewHandler.h
+# End Source File
+# End Group
+# Begin Group "LZ"
+
+# PROP Default_Filter ""
+# Begin Source File
+
+SOURCE=..\LZ\LZOutWindow.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\LZ\LZOutWindow.h
+# End Source File
+# End Group
+# Begin Source File
+
+SOURCE=.\ImplodeDecoder.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\ImplodeDecoder.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\ImplodeHuffmanDecoder.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\ImplodeHuffmanDecoder.h
+# End Source File
+# End Target
+# End Project

7zip/Compress/Implode/Implode.dsw

@@ -0,0 +1,29 @@
+Microsoft Developer Studio Workspace File, Format Version 6.00
+# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
+
+###############################################################################
+
+Project: "Implode"=.\Implode.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+}}}
+
+###############################################################################
+
+Global:
+
+Package=<5>
+{{{
+}}}
+
+Package=<3>
+{{{
+}}}
+
+###############################################################################
+

7zip/Compress/Implode/ImplodeDecoder.cpp

@@ -0,0 +1,210 @@
+// Implode/Decoder.cpp
+
+#include "StdAfx.h"
+
+#include "ImplodeDecoder.h"
+#include "Common/Defs.h"
+
+#include "Windows/Defs.h"
+
+namespace NCompress {
+namespace NImplode {
+namespace NDecoder {
+
+static const int kNumDistanceLowDirectBitsForBigDict = 7;  
+static const int kNumDistanceLowDirectBitsForSmallDict = 6;  
+
+static const int kNumBitsInByte = 8;
+
+static const int kLevelStructuresNumberFieldSize = kNumBitsInByte;
+static const int kLevelStructuresNumberAdditionalValue = 1;
+
+static const int kNumLevelStructureLevelBits = 4;
+static const int kLevelStructureLevelAdditionalValue = 1;
+
+static const int kNumLevelStructureRepNumberBits = 4;
+static const int kLevelStructureRepNumberAdditionalValue = 1;
+
+
+static const int kLiteralTableSize = (1 << kNumBitsInByte);
+static const int kDistanceTableSize = 64;
+static const int kLengthTableSize = 64;
+
+static const UINT32 kHistorySize = 
+    (1 << MyMax(kNumDistanceLowDirectBitsForBigDict, 
+                kNumDistanceLowDirectBitsForSmallDict)) * 
+    kDistanceTableSize; // = 8 KB;
+
+static const int kNumAdditionalLengthBits = 8;
+
+static const UINT32 kMatchMinLenWhenLiteralsOn = 3;  
+static const UINT32 kMatchMinLenWhenLiteralsOff = 2;
+
+static const UINT32 kMatchMinLenMax = MyMax(kMatchMinLenWhenLiteralsOn,
+    kMatchMinLenWhenLiteralsOff);  // 3
+
+static const UINT32 kMatchMaxLenMax = kMatchMinLenMax + 
+    (kLengthTableSize - 1) + (1 << kNumAdditionalLengthBits) - 1;  // or 2
+
+enum
+{
+  kMatchId = 0,
+  kLiteralId = 1
+};
+
+
+CCoder::CCoder():
+  m_LiteralDecoder(kLiteralTableSize),
+  m_LengthDecoder(kLengthTableSize),
+  m_DistanceDecoder(kDistanceTableSize)
+{
+  m_OutWindowStream.Create(kHistorySize/*, kMatchMaxLenMax*/);
+}
+
+/*
+STDMETHODIMP CCoder::ReleaseStreams()
+{
+  m_OutWindowStream.ReleaseStream();
+  m_InBitStream.ReleaseStream();
+  return S_OK;
+}
+*/
+
+void CCoder::ReadLevelItems(NImplode::NHuffman::CDecoder &decoder, 
+    BYTE *levels, int numLevelItems)
+{
+  int numCodedStructures = m_InBitStream.ReadBits(kNumBitsInByte) + 
+      kLevelStructuresNumberAdditionalValue;
+  int currentIndex = 0;
+  for(int i = 0; i < numCodedStructures; i++)
+  {
+    int level = m_InBitStream.ReadBits(kNumLevelStructureLevelBits) + 
+      kLevelStructureLevelAdditionalValue;
+    int rep = m_InBitStream.ReadBits(kNumLevelStructureRepNumberBits) + 
+      kLevelStructureRepNumberAdditionalValue;
+    if (currentIndex + rep > numLevelItems)
+      throw CException(CException::kData);
+    for(int j = 0; j < rep; j++)
+      levels[currentIndex++] = level;
+  }
+  if (currentIndex != numLevelItems)
+    throw CException(CException::kData);
+  try
+  {
+    decoder.SetCodeLengths(levels);
+  }
+  catch(const NImplode::NHuffman::CDecoderException &)
+  {
+    throw CException(CException::kData);
+  }
+}
+
+
+void CCoder::ReadTables(void)
+{
+  if (m_LiteralsOn)
+  {
+    BYTE literalLevels[kLiteralTableSize];
+    ReadLevelItems(m_LiteralDecoder, literalLevels, kLiteralTableSize);
+  }
+
+  BYTE lengthLevels[kLengthTableSize];
+  ReadLevelItems(m_LengthDecoder, lengthLevels, kLengthTableSize);
+
+  BYTE distanceLevels[kDistanceTableSize];
+  ReadLevelItems(m_DistanceDecoder, distanceLevels, kDistanceTableSize);
+
+}
+
+/*
+class CCoderReleaser
+{
+  CCoder *m_Coder;
+public:
+  CCoderReleaser(CCoder *coder): m_Coder(coder) {}
+  ~CCoderReleaser() { m_Coder->ReleaseStreams(); }
+};
+*/
+
+STDMETHODIMP CCoder::CodeReal(ISequentialInStream *inStream,
+    ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+    ICompressProgressInfo *progress)
+{
+  if (outSize == NULL)
+    return E_INVALIDARG;
+  UINT64 pos = 0, unPackSize = *outSize;
+
+  m_OutWindowStream.Init(outStream, false);
+  m_InBitStream.Init(inStream);
+  // CCoderReleaser coderReleaser(this);
+
+  ReadTables();
+  
+  while(pos < unPackSize)
+  {
+    if (progress != NULL && pos % (1 << 16) == 0)
+    {
+      UINT64 packSize = m_InBitStream.GetProcessedSize();
+      RINOK(progress->SetRatioInfo(&packSize, &pos));
+    }
+    if(m_InBitStream.ReadBits(1) == kMatchId) // match
+    {
+      UINT32 lowDistBits = m_InBitStream.ReadBits(m_NumDistanceLowDirectBits);
+      UINT32 distance = (m_DistanceDecoder.DecodeSymbol(&m_InBitStream) << 
+          m_NumDistanceLowDirectBits) + lowDistBits;
+
+      UINT32 lengthSymbol = m_LengthDecoder.DecodeSymbol(&m_InBitStream);
+      UINT32 length = lengthSymbol + m_MinMatchLength;
+      if (lengthSymbol == kLengthTableSize - 1) // special symbol  = 63
+        length += m_InBitStream.ReadBits(kNumAdditionalLengthBits);
+      while(distance >= pos && length > 0)
+      {
+        m_OutWindowStream.PutOneByte(0);
+        pos++;
+        length--;
+      }
+      if (length > 0)
+        m_OutWindowStream.CopyBackBlock(distance, length);
+      pos += length;
+    }
+    else
+    {
+      BYTE b = BYTE(m_LiteralsOn ? m_LiteralDecoder.DecodeSymbol(&m_InBitStream) : 
+          m_InBitStream.ReadBits(kNumBitsInByte));
+      m_OutWindowStream.PutOneByte(b);
+      pos++;
+    }
+  }
+  if (pos > unPackSize)
+    throw CException(CException::kData);
+  return m_OutWindowStream.Flush();
+}
+
+STDMETHODIMP CCoder::Code(ISequentialInStream *inStream,
+    ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+    ICompressProgressInfo *progress)
+{
+  try { return CodeReal(inStream, outStream, inSize, outSize, progress);  }
+  catch(const CLZOutWindowException &e) { return e.ErrorCode; }
+  catch(...) { return S_FALSE; }
+}
+
+STDMETHODIMP CCoder::SetDecoderProperties(ISequentialInStream *inStream)
+{
+  BYTE flag;
+  UINT32 processedSize;
+  RINOK(inStream->Read(&flag, sizeof(flag), &processedSize));
+  if (processedSize != sizeof(flag))
+    return E_INVALIDARG;
+  m_BigDictionaryOn = ((flag & 2) != 0);
+  m_NumDistanceLowDirectBits = m_BigDictionaryOn ? 
+      kNumDistanceLowDirectBitsForBigDict:
+      kNumDistanceLowDirectBitsForSmallDict;
+  m_LiteralsOn = ((flag & 4) != 0);
+  m_MinMatchLength = m_LiteralsOn ? 
+      kMatchMinLenWhenLiteralsOn : 
+      kMatchMinLenWhenLiteralsOff;
+  return S_OK;
+}
+
+}}}

7zip/Compress/Implode/ImplodeDecoder.h

@@ -0,0 +1,77 @@
+// ImplodeDecoder.h
+
+#ifndef __IMPLODE_DECODER_H
+#define __IMPLODE_DECODER_H
+
+#pragma once
+
+#include "Common/MyCom.h"
+
+#include "../../ICoder.h"
+#include "../LZ/LZOutWindow.h"
+
+#include "ImplodeHuffmanDecoder.h"
+
+namespace NCompress {
+namespace NImplode {
+namespace NDecoder {
+
+class CException
+{
+public:
+  enum ECauseType
+  {
+    kData
+  } m_Cause;
+  CException(ECauseType cause): m_Cause(cause) {}
+};
+
+class CCoder :
+  public ICompressCoder,
+  public ICompressSetDecoderProperties,
+  public CMyUnknownImp
+{
+  CLZOutWindow m_OutWindowStream;
+  NStream::NLSBF::CDecoder<CInBuffer> m_InBitStream;
+  
+  NImplode::NHuffman::CDecoder m_LiteralDecoder;
+  NImplode::NHuffman::CDecoder m_LengthDecoder;
+  NImplode::NHuffman::CDecoder m_DistanceDecoder;
+
+
+  bool m_BigDictionaryOn;
+  bool m_LiteralsOn;
+
+  int m_NumDistanceLowDirectBits; 
+  UINT32 m_MinMatchLength;
+
+  void ReadLevelItems(NImplode::NHuffman::CDecoder &table, 
+      BYTE *levels, int numLevelItems);
+  void ReadTables();
+  void DeCodeLevelTable(BYTE *newLevels, int numLevels);
+public:
+  CCoder();
+
+  MY_UNKNOWN_IMP1(ICompressSetDecoderProperties)
+
+  // STDMETHOD(ReleaseStreams)();
+  // STDMETHOD(Code)(UINT32 aSize, UINT32 &aProcessedSize);
+  HRESULT (Flush)() { return m_OutWindowStream.Flush(); }
+
+
+  STDMETHOD(CodeReal)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  STDMETHOD(Code)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  // ICompressSetDecoderProperties
+  // STDMETHOD(SetCoderProperties)(PROPVARIANT *aProperties, UINT32 aNumProperties);
+  STDMETHOD(SetDecoderProperties)(ISequentialInStream *inStream);
+};
+
+}}}
+
+#endif

7zip/Compress/Implode/ImplodeHuffmanDecoder.cpp

@@ -0,0 +1,88 @@
+// ImplodeHuffmanDecoder.cpp
+
+#include "StdAfx.h"
+
+#include "ImplodeHuffmanDecoder.h"
+
+namespace NCompress {
+namespace NImplode {
+namespace NHuffman {
+
+CDecoder::CDecoder(UINT32 numSymbols):
+  m_NumSymbols(numSymbols)
+{
+  m_Symbols = new UINT32[m_NumSymbols];
+}
+
+CDecoder::~CDecoder()
+{
+  delete []m_Symbols;
+}
+
+void CDecoder::SetCodeLengths(const BYTE *codeLengths)
+{
+  // int lenCounts[kNumBitsInLongestCode + 1], tmpPositions[kNumBitsInLongestCode + 1];
+  int lenCounts[kNumBitsInLongestCode + 2], tmpPositions[kNumBitsInLongestCode + 1];
+  int i;
+  for(i = 0; i <= kNumBitsInLongestCode; i++)
+    lenCounts[i] = 0;
+  UINT32 symbolIndex;
+  for (symbolIndex = 0; symbolIndex < m_NumSymbols; symbolIndex++)
+    lenCounts[codeLengths[symbolIndex]]++;
+  // lenCounts[0] = 0;
+  
+  // tmpPositions[0] = m_Positions[0] = m_Limitits[0] = 0;
+  m_Limitits[kNumBitsInLongestCode + 1] = 0;
+  m_Positions[kNumBitsInLongestCode + 1] = 0;
+  lenCounts[kNumBitsInLongestCode + 1] =  0;
+
+
+  UINT32 startPos = 0;
+  static const UINT32 kMaxValue = (1 << kNumBitsInLongestCode);
+
+  for (i = kNumBitsInLongestCode; i > 0; i--)
+  {
+    startPos += lenCounts[i] << (kNumBitsInLongestCode - i);
+    if (startPos > kMaxValue)
+      throw CDecoderException();
+    m_Limitits[i] = startPos;
+    m_Positions[i] = m_Positions[i + 1] + lenCounts[i + 1];
+    tmpPositions[i] = m_Positions[i] + lenCounts[i];
+
+  }
+
+  // if _ZIP_MODE do not throw exception for trees containing only one node 
+  // #ifndef _ZIP_MODE 
+  if (startPos != kMaxValue)
+    throw CDecoderException();
+  // #endif
+
+  for (symbolIndex = 0; symbolIndex < m_NumSymbols; symbolIndex++)
+    if (codeLengths[symbolIndex] != 0)
+      m_Symbols[--tmpPositions[codeLengths[symbolIndex]]] = symbolIndex;
+}
+
+UINT32 CDecoder::DecodeSymbol(CInBit *inStream)
+{
+  UINT32 numBits;
+  UINT32 value = inStream->GetValue(kNumBitsInLongestCode);
+  int i;
+  for(i = kNumBitsInLongestCode; i > 0; i--)
+  {
+    if (value < m_Limitits[i])
+    {
+      numBits = i;
+      break;
+    }
+  }
+  if (i == 0)
+    throw CDecoderException();
+  inStream->MovePos(numBits);
+  UINT32 index = m_Positions[numBits] + 
+      ((value - m_Limitits[numBits + 1]) >> (kNumBitsInLongestCode - numBits));
+  if (index >= m_NumSymbols)
+    throw CDecoderException(); // test it
+  return m_Symbols[index];
+}
+
+}}}

7zip/Compress/Implode/ImplodeHuffmanDecoder.h

@@ -0,0 +1,36 @@
+// ImplodeHuffmanDecoder.h
+
+#pragma once
+
+#ifndef __IMPLODE_HUFFMAN_DECODER_H
+#define __IMPLODE_HUFFMAN_DECODER_H
+
+#include "../../Common/LSBFDecoder.h"
+#include "../../Common/InBuffer.h"
+
+namespace NCompress {
+namespace NImplode {
+namespace NHuffman {
+
+const int kNumBitsInLongestCode = 16;
+class CDecoderException{};
+
+typedef NStream::NLSBF::CDecoder<CInBuffer> CInBit;
+
+class CDecoder
+{
+  UINT32 m_Limitits[kNumBitsInLongestCode + 2]; // m_Limitits[i] = value limit for symbols with length = i 
+  UINT32 m_Positions[kNumBitsInLongestCode + 2];   // m_Positions[i] = index in m_Symbols[] of first symbol with length = i 
+  UINT32 m_NumSymbols; // number of symbols in m_Symbols
+  UINT32 *m_Symbols; // symbols: at first with len=1 then 2, ... 15.
+public:
+  CDecoder(UINT32 numSymbols);
+  ~CDecoder();
+  
+  void SetCodeLengths(const BYTE *codeLengths);
+  UINT32 DecodeSymbol(CInBit *inStream);
+};
+
+}}}
+
+#endif

7zip/Compress/Implode/StdAfx.cpp

@@ -0,0 +1,3 @@
+// StdAfx.cpp
+
+#include "stdafx.h"

7zip/Compress/Implode/StdAfx.h

@@ -0,0 +1,8 @@
+// stdafx.h
+
+#ifndef __STDAFX_H
+#define __STDAFX_H
+
+#include <windows.h>
+
+#endif 

7zip/Compress/Implode/resource.h

@@ -0,0 +1,15 @@
+//{{NO_DEPENDENCIES}}
+// Microsoft Developer Studio generated include file.
+// Used by resource.rc
+//
+
+// Next default values for new objects
+// 
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        101
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1000
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif

7zip/Compress/Implode/resource.rc

@@ -0,0 +1,121 @@
+//Microsoft Developer Studio generated resource script.
+//
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "afxres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// Russian resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_RUS)
+#ifdef _WIN32
+LANGUAGE LANG_RUSSIAN, SUBLANG_DEFAULT
+#pragma code_page(1251)
+#endif //_WIN32
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "#include ""afxres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+#endif    // Russian resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////////////////////////
+// English (U.S.) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+#ifdef _WIN32
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+#pragma code_page(1252)
+#endif //_WIN32
+
+#ifndef _MAC
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION 3,9,2,0
+ PRODUCTVERSION 3,9,2,0
+ FILEFLAGSMASK 0x3fL
+#ifdef _DEBUG
+ FILEFLAGS 0x1L
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS 0x40004L
+ FILETYPE 0x2L
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "Comments", "\0"
+            VALUE "CompanyName", "Igor Pavlov\0"
+            VALUE "FileDescription", "Implode Decoder\0"
+            VALUE "FileVersion", "3, 9, 2, 0\0"
+            VALUE "InternalName", "Implode\0"
+            VALUE "LegalCopyright", "Copyright (C) 1999-2003 Igor Pavlov\0"
+            VALUE "LegalTrademarks", "\0"
+            VALUE "OriginalFilename", "Implode.dll\0"
+            VALUE "PrivateBuild", "\0"
+            VALUE "ProductName", "7-Zip\0"
+            VALUE "ProductVersion", "3, 9, 2, 0\0"
+            VALUE "SpecialBuild", "\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END
+
+#endif    // !_MAC
+
+#endif    // English (U.S.) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
+