diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/7zip/UI/Common/LoadCodecs.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/7zip/UI/Common/LoadCodecs.h	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,215 @@
+// LoadCodecs.h
+
+#ifndef __LOADCODECS_H
+#define __LOADCODECS_H
+
+#include "../../../Common/Types.h"
+#include "../../../Common/MyCom.h"
+#include "../../../Common/MyString.h"
+#include "../../../Common/Buffer.h"
+#include "../../ICoder.h"
+
+#ifdef EXTERNAL_CODECS
+#include "../../../Windows/DLL.h"
+#endif
+
+struct CDllCodecInfo
+{
+  CLSID Encoder;
+  CLSID Decoder;
+  bool EncoderIsAssigned;
+  bool DecoderIsAssigned;
+  int LibIndex;
+  UInt32 CodecIndex;
+};
+
+#include "../../Archive/IArchive.h"
+
+typedef IInArchive * (*CreateInArchiveP)();
+typedef IOutArchive * (*CreateOutArchiveP)();
+
+struct CArcExtInfo
+{
+  UString Ext;
+  UString AddExt;
+  CArcExtInfo() {}
+  CArcExtInfo(const UString &ext): Ext(ext) {}
+  CArcExtInfo(const UString &ext, const UString &addExt): Ext(ext), AddExt(addExt) {}
+};
+
+
+struct CArcInfoEx
+{
+  #ifdef EXTERNAL_CODECS
+  int LibIndex;
+  UInt32 FormatIndex;
+  CLSID ClassID;
+  #endif
+  bool UpdateEnabled;
+  CreateInArchiveP CreateInArchive;
+  CreateOutArchiveP CreateOutArchive;
+  UString Name;
+  CObjectVector<CArcExtInfo> Exts;
+  #ifndef _SFX
+  CByteBuffer StartSignature;
+  // CByteBuffer FinishSignature;
+  #ifdef NEW_FOLDER_INTERFACE
+  UStringVector AssociateExts;
+  #endif
+  #endif
+  bool KeepName;
+  UString GetMainExt() const
+  {
+    if (Exts.IsEmpty())
+      return UString();
+    return Exts[0].Ext;
+  }
+  int FindExtension(const UString &ext) const
+  {
+    for (int i = 0; i < Exts.Size(); i++)
+      if (ext.CompareNoCase(Exts[i].Ext) == 0)
+        return i;
+    return -1;
+  }
+  UString GetAllExtensions() const
+  {
+    UString s;
+    for (int i = 0; i < Exts.Size(); i++)
+    {
+      if (i > 0)
+        s += ' ';
+      s += Exts[i].Ext;
+    }
+    return s;
+  }
+
+  void AddExts(const wchar_t* ext, const wchar_t* addExt);
+
+  CArcInfoEx(): 
+    #ifdef EXTERNAL_CODECS
+    LibIndex(-1),
+    #endif
+    UpdateEnabled(false),
+    CreateInArchive(0), CreateOutArchive(0),
+    KeepName(false)
+    #ifndef _SFX
+    #endif
+  {}
+};
+
+#ifdef EXTERNAL_CODECS
+typedef UInt32 (WINAPI *GetMethodPropertyFunc)(UInt32 index, PROPID propID, PROPVARIANT *value);
+typedef UInt32 (WINAPI *CreateObjectFunc)(const GUID *clsID, const GUID *interfaceID, void **outObject);
+
+
+struct CCodecLib
+{
+  NWindows::NDLL::CLibrary Lib;
+  GetMethodPropertyFunc GetMethodProperty;
+  CreateObjectFunc CreateObject;
+  #ifdef NEW_FOLDER_INTERFACE
+  struct CIconPair
+  {
+    UString Ext;
+    UInt32 IconIndex;
+  };
+  CSysString Path;
+  CObjectVector<CIconPair> IconPairs;
+  void LoadIcons();
+  int FindIconIndex(const UString &ext) const;
+  #endif
+  CCodecLib(): GetMethodProperty(0) {}
+};
+#endif
+
+class CCodecs:
+  #ifdef EXTERNAL_CODECS
+  public ICompressCodecsInfo,
+  #else
+  public IUnknown,
+  #endif
+  public CMyUnknownImp
+{
+public:  
+  #ifdef EXTERNAL_CODECS
+  CObjectVector<CCodecLib> Libs;
+  CObjectVector<CDllCodecInfo> Codecs;
+  HRESULT LoadCodecs();
+  HRESULT LoadFormats();
+  HRESULT LoadDll(const CSysString &path);
+  HRESULT LoadDllsFromFolder(const CSysString &folderPrefix);
+
+  HRESULT CreateArchiveHandler(const CArcInfoEx &ai, void **archive, bool outHandler) const
+  {
+    return Libs[ai.LibIndex].CreateObject(&ai.ClassID, outHandler ? &IID_IOutArchive : &IID_IInArchive, (void **)archive);
+  }
+  #endif
+
+public:
+  CObjectVector<CArcInfoEx> Formats;
+  HRESULT Load();
+  int FindFormatForArchiveName(const UString &archivePath) const;
+  int FindFormatForArchiveType(const UString &arcType) const;
+
+  MY_UNKNOWN_IMP
+
+  #ifdef EXTERNAL_CODECS
+  STDMETHOD(GetNumberOfMethods)(UINT32 *numMethods);
+  STDMETHOD(GetProperty)(UINT32 index, PROPID propID, PROPVARIANT *value);
+  STDMETHOD(CreateDecoder)(UINT32 index, const GUID *interfaceID, void **coder);
+  STDMETHOD(CreateEncoder)(UINT32 index, const GUID *interfaceID, void **coder);
+  #endif
+
+  int GetCodecLibIndex(UInt32 index);
+  bool GetCodecEncoderIsAssigned(UInt32 index);
+  HRESULT GetCodecId(UInt32 index, UInt64 &id);
+  UString GetCodecName(UInt32 index);
+
+  HRESULT CreateInArchive(int formatIndex, CMyComPtr<IInArchive> &archive) const
+  { 
+    const CArcInfoEx &ai = Formats[formatIndex]; 
+    #ifdef EXTERNAL_CODECS
+    if (ai.LibIndex < 0)
+    #endif
+    {
+      archive = ai.CreateInArchive();
+      return S_OK;
+    }
+    #ifdef EXTERNAL_CODECS
+    return CreateArchiveHandler(ai, (void **)&archive, false); 
+    #endif
+  }
+  HRESULT CreateOutArchive(int formatIndex, CMyComPtr<IOutArchive> &archive) const
+  { 
+    const CArcInfoEx &ai = Formats[formatIndex]; 
+    #ifdef EXTERNAL_CODECS
+    if (ai.LibIndex < 0)
+    #endif
+    {
+      archive = ai.CreateOutArchive();
+      return S_OK;
+    }
+    #ifdef EXTERNAL_CODECS
+    return CreateArchiveHandler(ai, (void **)&archive, true); 
+    #endif
+  }
+  int FindOutFormatFromName(const UString &name) const
+  {
+    for (int i = 0; i < Formats.Size(); i++)
+    {
+      const CArcInfoEx &arc = Formats[i];
+      if (!arc.UpdateEnabled)
+        continue;
+      if (arc.Name.CompareNoCase(name) == 0)
+        return i;
+    }
+    return -1;
+  }
+
+  #ifdef EXTERNAL_CODECS
+  HRESULT CreateCoder(const UString &name, bool encode, CMyComPtr<ICompressCoder> &coder) const;
+  #endif
+
+};
+
+#endif