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// DLLExports.cpp
#include "StdAfx.h"
#include "Common/MyInitGuid.h"
#include "Common/ComTry.h"
#include "DeflateEncoder.h"
#include "DeflateDecoder.h"
#ifdef CRC_GENERATE_TABLE
extern "C"
{
#include "../../../../C/7zCrc.h"
}
#endif
// {23170F69-40C1-278B-0401-080000000000}
DEFINE_GUID(CLSID_CCompressDeflateDecoder,
0x23170F69, 0x40C1, 0x278B, 0x04, 0x01, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00);
// {23170F69-40C1-278B-0401-090000000000}
DEFINE_GUID(CLSID_CCompressDeflate64Decoder,
0x23170F69, 0x40C1, 0x278B, 0x04, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00);
// {23170F69-40C1-278B-0401-080000000100}
DEFINE_GUID(CLSID_CCompressDeflateEncoder,
0x23170F69, 0x40C1, 0x278B, 0x04, 0x01, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00);
// {23170F69-40C1-278B-0401-090000000100}
DEFINE_GUID(CLSID_CCompressDeflate64Encoder,
0x23170F69, 0x40C1, 0x278B, 0x04, 0x01, 0x09, 0x00, 0x00, 0x00, 0x01, 0x00);
// {23170F69-40C1-278B-0409-010000000000}
DEFINE_GUID(CLSID_CCompressDeflateNsisDecoder,
0x23170F69, 0x40C1, 0x278B, 0x04, 0x09, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00);
extern "C"
BOOL WINAPI DllMain(HINSTANCE /* hInstance */, DWORD dwReason, LPVOID /*lpReserved*/)
{
if (dwReason == DLL_PROCESS_ATTACH)
{
#ifdef CRC_GENERATE_TABLE
CrcGenerateTable();
#endif
}
return TRUE;
}
STDAPI CreateObject(const GUID *clsid, const GUID *iid, void **outObject)
{
COM_TRY_BEGIN
*outObject = 0;
int correctInterface = (*iid == IID_ICompressCoder);
CMyComPtr<ICompressCoder> coder;
if (*clsid == CLSID_CCompressDeflateDecoder)
{
if (!correctInterface)
return E_NOINTERFACE;
coder = (ICompressCoder *)new NCompress::NDeflate::NDecoder::CCOMCoder();
}
else if (*clsid == CLSID_CCompressDeflateNsisDecoder)
{
if (!correctInterface)
return E_NOINTERFACE;
coder = (ICompressCoder *)new NCompress::NDeflate::NDecoder::CNsisCOMCoder();
}
else if (*clsid == CLSID_CCompressDeflateEncoder)
{
if (!correctInterface)
return E_NOINTERFACE;
coder = (ICompressCoder *)new NCompress::NDeflate::NEncoder::CCOMCoder();
}
else if (*clsid == CLSID_CCompressDeflate64Decoder)
{
if (!correctInterface)
return E_NOINTERFACE;
coder = (ICompressCoder *)new NCompress::NDeflate::NDecoder::CCOMCoder64();
}
else if (*clsid == CLSID_CCompressDeflate64Encoder)
{
if (!correctInterface)
return E_NOINTERFACE;
coder = (ICompressCoder *)new NCompress::NDeflate::NEncoder::CCOMCoder64();
}
else
return CLASS_E_CLASSNOTAVAILABLE;
*outObject = coder.Detach();
COM_TRY_END
return S_OK;
}
struct CDeflateMethodItem
{
char ID[3];
const wchar_t *UserName;
const GUID *Decoder;
const GUID *Encoder;
};
#define METHOD_ITEM(Name, id, UserName) \
{ { 0x04, 0x01, id }, UserName, \
&CLSID_CCompress ## Name ## Decoder, \
&CLSID_CCompress ## Name ## Encoder }
#define METHOD_ITEM_DE(Name, id1, id2, UserName) \
{ { 0x04, id1, id2 }, UserName, \
&CLSID_CCompress ## Name ## Decoder, NULL }
static CDeflateMethodItem g_Methods[] =
{
METHOD_ITEM(Deflate, 0x08, L"Deflate"),
METHOD_ITEM(Deflate64, 0x09, L"Deflate64"),
METHOD_ITEM_DE(DeflateNsis, 0x09, 0x01, L"DeflateNSIS")
};
STDAPI GetNumberOfMethods(UINT32 *numMethods)
{
*numMethods = sizeof(g_Methods) / sizeof(g_Methods[0]);
return S_OK;
}
STDAPI GetMethodProperty(UINT32 index, PROPID propID, PROPVARIANT *value)
{
if (index > sizeof(g_Methods) / sizeof(g_Methods[0]))
return E_INVALIDARG;
VariantClear((tagVARIANT *)value);
const CDeflateMethodItem &method = g_Methods[index];
switch(propID)
{
case NMethodPropID::kID:
if ((value->bstrVal = ::SysAllocStringByteLen(method.ID,
sizeof(method.ID))) != 0)
value->vt = VT_BSTR;
return S_OK;
case NMethodPropID::kName:
if ((value->bstrVal = ::SysAllocString(method.UserName)) != 0)
value->vt = VT_BSTR;
return S_OK;
case NMethodPropID::kDecoder:
if ((value->bstrVal = ::SysAllocStringByteLen(
(const char *)method.Decoder, sizeof(GUID))) != 0)
value->vt = VT_BSTR;
return S_OK;
case NMethodPropID::kEncoder:
if (method.Encoder)
{
if ((value->bstrVal = ::SysAllocStringByteLen(
(const char *)method.Encoder, sizeof(GUID))) != 0)
value->vt = VT_BSTR;
}
return S_OK;
}
return S_OK;
}
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