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https://github.com/aaru-dps/Aaru.Compression.Native.git
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Move placement of lzma.
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436
3rdparty/lzma/CPP/7zip/UI/Common/LoadCodecs.h
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436
3rdparty/lzma/CPP/7zip/UI/Common/LoadCodecs.h
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// LoadCodecs.h
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#ifndef __LOAD_CODECS_H
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#define __LOAD_CODECS_H
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/*
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Client application uses LoadCodecs.* to load plugins to
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CCodecs object, that contains 3 lists of plugins:
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1) Formats - internal and external archive handlers
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2) Codecs - external codecs
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3) Hashers - external hashers
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EXTERNAL_CODECS
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---------------
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if EXTERNAL_CODECS is defined, then the code tries to load external
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plugins from DLL files (shared libraries).
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There are two types of executables in 7-Zip:
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1) Executable that uses external plugins must be compiled
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with EXTERNAL_CODECS defined:
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- 7z.exe, 7zG.exe, 7zFM.exe
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Note: EXTERNAL_CODECS is used also in CPP/7zip/Common/CreateCoder.h
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that code is used in plugin module (7z.dll).
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2) Standalone modules are compiled without EXTERNAL_CODECS:
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- SFX modules: 7z.sfx, 7zCon.sfx
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- standalone versions of console 7-Zip: 7za.exe, 7zr.exe
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if EXTERNAL_CODECS is defined, CCodecs class implements interfaces:
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- ICompressCodecsInfo : for Codecs
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- IHashers : for Hashers
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The client application can send CCodecs object to each plugin module.
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And plugin module can use ICompressCodecsInfo or IHashers interface to access
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another plugins.
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There are 2 ways to send (ICompressCodecsInfo * compressCodecsInfo) to plugin
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1) for old versions:
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a) request ISetCompressCodecsInfo from created archive handler.
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b) call ISetCompressCodecsInfo::SetCompressCodecsInfo(compressCodecsInfo)
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2) for new versions:
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a) request "SetCodecs" function from DLL file
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b) call SetCodecs(compressCodecsInfo) function from DLL file
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*/
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#include "../../../Common/MyBuffer.h"
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#include "../../../Common/MyCom.h"
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#include "../../../Common/MyString.h"
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#include "../../../Common/ComTry.h"
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#ifdef EXTERNAL_CODECS
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#include "../../../Windows/DLL.h"
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#endif
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#include "../../ICoder.h"
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#include "../../Archive/IArchive.h"
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#ifdef EXTERNAL_CODECS
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struct CDllCodecInfo
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{
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unsigned LibIndex;
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UInt32 CodecIndex;
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bool EncoderIsAssigned;
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bool DecoderIsAssigned;
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CLSID Encoder;
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CLSID Decoder;
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};
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struct CDllHasherInfo
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{
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unsigned LibIndex;
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UInt32 HasherIndex;
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};
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#endif
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struct CArcExtInfo
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{
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UString Ext;
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UString AddExt;
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CArcExtInfo() {}
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CArcExtInfo(const UString &ext): Ext(ext) {}
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CArcExtInfo(const UString &ext, const UString &addExt): Ext(ext), AddExt(addExt) {}
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};
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struct CArcInfoEx
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{
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UInt32 Flags;
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Func_CreateInArchive CreateInArchive;
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Func_IsArc IsArcFunc;
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UString Name;
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CObjectVector<CArcExtInfo> Exts;
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#ifndef _SFX
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Func_CreateOutArchive CreateOutArchive;
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bool UpdateEnabled;
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bool NewInterface;
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// UInt32 Version;
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UInt32 SignatureOffset;
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CObjectVector<CByteBuffer> Signatures;
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#ifdef NEW_FOLDER_INTERFACE
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UStringVector AssociateExts;
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#endif
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#endif
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#ifdef EXTERNAL_CODECS
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int LibIndex;
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UInt32 FormatIndex;
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CLSID ClassID;
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#endif
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bool Flags_KeepName() const { return (Flags & NArcInfoFlags::kKeepName) != 0; }
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bool Flags_FindSignature() const { return (Flags & NArcInfoFlags::kFindSignature) != 0; }
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bool Flags_AltStreams() const { return (Flags & NArcInfoFlags::kAltStreams) != 0; }
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bool Flags_NtSecure() const { return (Flags & NArcInfoFlags::kNtSecure) != 0; }
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bool Flags_SymLinks() const { return (Flags & NArcInfoFlags::kSymLinks) != 0; }
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bool Flags_HardLinks() const { return (Flags & NArcInfoFlags::kHardLinks) != 0; }
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bool Flags_UseGlobalOffset() const { return (Flags & NArcInfoFlags::kUseGlobalOffset) != 0; }
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bool Flags_StartOpen() const { return (Flags & NArcInfoFlags::kStartOpen) != 0; }
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bool Flags_BackwardOpen() const { return (Flags & NArcInfoFlags::kBackwardOpen) != 0; }
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bool Flags_PreArc() const { return (Flags & NArcInfoFlags::kPreArc) != 0; }
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bool Flags_PureStartOpen() const { return (Flags & NArcInfoFlags::kPureStartOpen) != 0; }
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bool Flags_ByExtOnlyOpen() const { return (Flags & NArcInfoFlags::kByExtOnlyOpen) != 0; }
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UString GetMainExt() const
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{
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if (Exts.IsEmpty())
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return UString();
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return Exts[0].Ext;
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}
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int FindExtension(const UString &ext) const;
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/*
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UString GetAllExtensions() const
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{
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UString s;
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for (int i = 0; i < Exts.Size(); i++)
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{
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if (i > 0)
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s += ' ';
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s += Exts[i].Ext;
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}
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return s;
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}
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*/
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void AddExts(const UString &ext, const UString &addExt);
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bool IsSplit() const { return StringsAreEqualNoCase_Ascii(Name, "Split"); }
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// bool IsRar() const { return StringsAreEqualNoCase_Ascii(Name, "Rar"); }
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CArcInfoEx():
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Flags(0),
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CreateInArchive(NULL),
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IsArcFunc(NULL)
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#ifndef _SFX
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, CreateOutArchive(NULL)
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, UpdateEnabled(false)
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, NewInterface(false)
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// , Version(0)
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, SignatureOffset(0)
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#endif
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#ifdef EXTERNAL_CODECS
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, LibIndex(-1)
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#endif
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{}
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};
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#ifdef NEW_FOLDER_INTERFACE
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struct CCodecIcons
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{
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struct CIconPair
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{
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UString Ext;
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int IconIndex;
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};
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CObjectVector<CIconPair> IconPairs;
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void LoadIcons(HMODULE m);
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bool FindIconIndex(const UString &ext, int &iconIndex) const;
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};
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#endif
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#ifdef EXTERNAL_CODECS
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struct CCodecLib
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#ifdef NEW_FOLDER_INTERFACE
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: public CCodecIcons
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#endif
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{
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NWindows::NDLL::CLibrary Lib;
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FString Path;
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Func_CreateObject CreateObject;
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Func_GetMethodProperty GetMethodProperty;
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Func_CreateDecoder CreateDecoder;
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Func_CreateEncoder CreateEncoder;
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Func_SetCodecs SetCodecs;
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CMyComPtr<IHashers> ComHashers;
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#ifdef NEW_FOLDER_INTERFACE
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void LoadIcons() { CCodecIcons::LoadIcons((HMODULE)Lib); }
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#endif
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CCodecLib():
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CreateObject(NULL),
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GetMethodProperty(NULL),
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CreateDecoder(NULL),
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CreateEncoder(NULL),
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SetCodecs(NULL)
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{}
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};
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#endif
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struct CCodecError
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{
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FString Path;
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HRESULT ErrorCode;
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AString Message;
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CCodecError(): ErrorCode(0) {}
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};
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class CCodecs:
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#ifdef EXTERNAL_CODECS
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public ICompressCodecsInfo,
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public IHashers,
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#else
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public IUnknown,
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#endif
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public CMyUnknownImp
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{
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CLASS_NO_COPY(CCodecs);
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public:
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#ifdef EXTERNAL_CODECS
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CObjectVector<CCodecLib> Libs;
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FString MainDll_ErrorPath;
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CObjectVector<CCodecError> Errors;
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void AddLastError(const FString &path);
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void CloseLibs();
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class CReleaser
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{
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CLASS_NO_COPY(CReleaser);
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/* CCodecsReleaser object releases CCodecs links.
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1) CCodecs is COM object that is deleted when all links to that object will be released/
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2) CCodecs::Libs[i] can hold (ICompressCodecsInfo *) link to CCodecs object itself.
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To break that reference loop, we must close all CCodecs::Libs in CCodecsReleaser desttructor. */
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CCodecs *_codecs;
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public:
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CReleaser(): _codecs(NULL) {}
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void Set(CCodecs *codecs) { _codecs = codecs; }
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~CReleaser() { if (_codecs) _codecs->CloseLibs(); }
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};
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bool NeedSetLibCodecs; // = false, if we don't need to set codecs for archive handler via ISetCompressCodecsInfo
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HRESULT LoadCodecs();
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HRESULT LoadFormats();
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HRESULT LoadDll(const FString &path, bool needCheckDll, bool *loadedOK = NULL);
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HRESULT LoadDllsFromFolder(const FString &folderPrefix);
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HRESULT CreateArchiveHandler(const CArcInfoEx &ai, bool outHandler, void **archive) const
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{
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return Libs[(unsigned)ai.LibIndex].CreateObject(&ai.ClassID, outHandler ? &IID_IOutArchive : &IID_IInArchive, (void **)archive);
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}
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#endif
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#ifdef NEW_FOLDER_INTERFACE
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CCodecIcons InternalIcons;
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#endif
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CObjectVector<CArcInfoEx> Formats;
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#ifdef EXTERNAL_CODECS
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CRecordVector<CDllCodecInfo> Codecs;
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CRecordVector<CDllHasherInfo> Hashers;
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#endif
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bool CaseSensitiveChange;
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bool CaseSensitive;
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CCodecs():
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#ifdef EXTERNAL_CODECS
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NeedSetLibCodecs(true),
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#endif
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CaseSensitiveChange(false),
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CaseSensitive(false)
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{}
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~CCodecs()
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{
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// OutputDebugStringA("~CCodecs");
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}
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const wchar_t *GetFormatNamePtr(int formatIndex) const
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{
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return formatIndex < 0 ? L"#" : (const wchar_t *)Formats[(unsigned)formatIndex].Name;
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}
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HRESULT Load();
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#ifndef _SFX
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int FindFormatForArchiveName(const UString &arcPath) const;
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int FindFormatForExtension(const UString &ext) const;
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int FindFormatForArchiveType(const UString &arcType) const;
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bool FindFormatForArchiveType(const UString &arcType, CIntVector &formatIndices) const;
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#endif
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#ifdef EXTERNAL_CODECS
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MY_UNKNOWN_IMP2(ICompressCodecsInfo, IHashers)
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STDMETHOD(GetNumMethods)(UInt32 *numMethods);
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STDMETHOD(GetProperty)(UInt32 index, PROPID propID, PROPVARIANT *value);
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STDMETHOD(CreateDecoder)(UInt32 index, const GUID *iid, void **coder);
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STDMETHOD(CreateEncoder)(UInt32 index, const GUID *iid, void **coder);
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STDMETHOD_(UInt32, GetNumHashers)();
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STDMETHOD(GetHasherProp)(UInt32 index, PROPID propID, PROPVARIANT *value);
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STDMETHOD(CreateHasher)(UInt32 index, IHasher **hasher);
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#else
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MY_UNKNOWN_IMP
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#endif // EXTERNAL_CODECS
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#ifdef EXTERNAL_CODECS
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int GetCodec_LibIndex(UInt32 index) const;
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bool GetCodec_DecoderIsAssigned(UInt32 index) const;
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bool GetCodec_EncoderIsAssigned(UInt32 index) const;
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UInt32 GetCodec_NumStreams(UInt32 index);
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HRESULT GetCodec_Id(UInt32 index, UInt64 &id);
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AString GetCodec_Name(UInt32 index);
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int GetHasherLibIndex(UInt32 index);
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UInt64 GetHasherId(UInt32 index);
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AString GetHasherName(UInt32 index);
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UInt32 GetHasherDigestSize(UInt32 index);
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void GetCodecsErrorMessage(UString &s);
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#endif
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HRESULT CreateInArchive(unsigned formatIndex, CMyComPtr<IInArchive> &archive) const
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{
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const CArcInfoEx &ai = Formats[formatIndex];
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#ifdef EXTERNAL_CODECS
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if (ai.LibIndex < 0)
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#endif
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{
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COM_TRY_BEGIN
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archive = ai.CreateInArchive();
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return S_OK;
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COM_TRY_END
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}
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#ifdef EXTERNAL_CODECS
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return CreateArchiveHandler(ai, false, (void **)&archive);
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#endif
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}
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#ifndef _SFX
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HRESULT CreateOutArchive(unsigned formatIndex, CMyComPtr<IOutArchive> &archive) const
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{
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const CArcInfoEx &ai = Formats[formatIndex];
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#ifdef EXTERNAL_CODECS
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if (ai.LibIndex < 0)
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#endif
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{
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COM_TRY_BEGIN
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archive = ai.CreateOutArchive();
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return S_OK;
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COM_TRY_END
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}
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#ifdef EXTERNAL_CODECS
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return CreateArchiveHandler(ai, true, (void **)&archive);
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#endif
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}
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int FindOutFormatFromName(const UString &name) const
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{
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FOR_VECTOR (i, Formats)
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{
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const CArcInfoEx &arc = Formats[i];
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if (!arc.UpdateEnabled)
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continue;
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if (arc.Name.IsEqualTo_NoCase(name))
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return (int)i;
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}
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return -1;
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}
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#endif // _SFX
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};
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#ifdef EXTERNAL_CODECS
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#define CREATE_CODECS_OBJECT \
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CCodecs *codecs = new CCodecs; \
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CExternalCodecs __externalCodecs; \
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__externalCodecs.GetCodecs = codecs; \
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__externalCodecs.GetHashers = codecs; \
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CCodecs::CReleaser codecsReleaser; \
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codecsReleaser.Set(codecs);
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#else
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#define CREATE_CODECS_OBJECT \
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CCodecs *codecs = new CCodecs; \
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CMyComPtr<IUnknown> __codecsRef = codecs;
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#endif
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#endif
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Reference in New Issue
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