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// 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);
#ifdef NEW_FOLDER_INTERFACE
struct CCodecIcons
{
struct CIconPair
{
UString Ext;
int IconIndex;
};
CObjectVector<CIconPair> IconPairs;
void LoadIcons(HMODULE m);
bool FindIconIndex(const UString &ext, int &iconIndex) const;
};
#endif
struct CCodecLib
#ifdef NEW_FOLDER_INTERFACE
: public CCodecIcons
#endif
{
NWindows::NDLL::CLibrary Lib;
GetMethodPropertyFunc GetMethodProperty;
CreateObjectFunc CreateObject;
#ifdef NEW_FOLDER_INTERFACE
CSysString Path;
void LoadIcons() { CCodecIcons::LoadIcons((HMODULE)Lib); }
#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;
#ifdef NEW_FOLDER_INTERFACE
CCodecIcons InternalIcons;
#endif
HRESULT LoadCodecs();
HRESULT LoadFormats();
HRESULT LoadDll(const CSysString &path, bool needCheckDll);
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();
#ifndef _SFX
int FindFormatForArchiveName(const UString &arcPath) const;
int FindFormatForExtension(const UString &ext) const;
int FindFormatForArchiveType(const UString &arcType) const;
bool FindFormatForArchiveType(const UString &arcType, CIntVector &formatIndices) const;
#endif
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
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