hxcommn.cpp

linux下的一款播放器

    else if(IsEqualCLSID(rclsid, CLSID_IHXKeyValueList))
    {
	*ppUnknown = (IUnknown*)(IHXKeyValueList*)(new CKeyValueList());
        if( !*ppUnknown )
        {
            return HXR_OUTOFMEMORY;
        }
	((IUnknown*)*ppUnknown)->AddRef();
	return HXR_OK;
    }
#if defined(HELIX_FEATURE_FILESYSTEMMGR)
    else if (IsEqualCLSID(rclsid, CLSID_IHXFileSystemManager))
    {
	*ppUnknown = (IUnknown*)(IHXFileSystemManager*)(new HXFileSystemManager(m_pContext));
        if( !*ppUnknown )
        {
            return HXR_OUTOFMEMORY;
        }
	((IUnknown*)*ppUnknown)->AddRef();
	return HXR_OK;
    }
#endif /* HELIX_FEATURE_FILESYSTEMMGR */

    else if (IsEqualCLSID(rclsid, CLSID_IHXMutex))
    {
        CHXMutex *pMutex = new CHXMutex();
        if (pMutex)
        {
            return pMutex->QueryInterface(IID_IUnknown, (void**) ppUnknown);
        }
    }

// Unix now implements this as a factory plugin.  Windows and Mac may
// do so someday too.
#if (defined (_WINDOWS) || defined (_MACINTOSH)) && !defined(_WINCE)
    else if(IsEqualCLSID(rclsid, CLSID_IHXSiteWindowed))
    {
	{
	    IHXPreferences*	pPreferences	= NULL;
	    IHXBuffer*		pBuffer		= NULL;
	    BOOL		bUseNewSite	= TRUE;

	    if (HXR_OK == m_pContext->QueryInterface(IID_IHXPreferences,(void**)&pPreferences))
	    {   
		if (pPreferences->ReadPref("UseHXVideo", pBuffer) == HXR_OK)
		{
		    bUseNewSite = (::atoi((char*) pBuffer->GetBuffer()) == 1);
		    HX_RELEASE(pBuffer);
		}
		HX_RELEASE(pPreferences);
	    }

	    if (bUseNewSite)
	    {
		goto classFactory;
	    }
	}

#ifdef _WIN32

        // Can not use the plugin handler to create the 
        // site, since it uses the same class ID as 
        // pnvideo, and the plugin handler gets REALLY
        // confused.
        // futher we can not use DLL access, since we WANT to keep
        // a reference on the DLL object created.

        UINT32 uDLLNameLen = 256;
        char    szDllName[256]; /* Flawfinder: ignore */
        DLLAccess::CreateName("pnol", "pnoldvideo", szDllName, uDLLNameLen);

        const char* pPath = NULL;
        CHXString fileName;

        pPath = GetDLLAccessPath()->GetPath(DLLTYPE_PLUGIN);
        fileName = pPath;
        fileName += "\\";
        fileName += szDllName;

        HINSTANCE hinst = LoadLibrary(fileName);
        FPCREATEINSTANCE fpCreateInstance = (FPCREATEINSTANCE) GetProcAddress(hinst, HXCREATEINSTANCESTR);
        *ppUnknown = 0;
        if (fpCreateInstance)
        {
            fpCreateInstance((IUnknown**) ppUnknown);
            IHXPlugin* pPlug = NULL;
            if (HXR_OK == (*(IUnknown**)ppUnknown)->QueryInterface(IID_IHXPlugin, (void**)&pPlug))
            {
                pPlug->InitPlugin(m_pContext);
                HX_RELEASE(*(IUnknown**)ppUnknown);
                fpCreateInstance((IUnknown**) ppUnknown);
            }
            return HXR_OK;
        }
        return HXR_FAIL;
    }
#endif
#ifdef _MACINTOSH
    goto classFactory;
/*
    {
	    *ppUnknown = (IUnknown*)(IHXSiteWindowed*)(new CHXSiteWindowed(m_pContext));
	}
	return ((IUnknown*)*ppUnknown)->QueryInterface(IID_IHXSiteWindowed,
							(void**)ppUnknown);
*/
    }
#endif
#endif
#if defined(HELIX_FEATURE_VIDEO) && defined (HELIX_FEATURE_MISU)
    else if(IsEqualCLSID(rclsid, CLSID_IHXMultiInstanceSiteUserSupplier))
    {
	*ppUnknown = (IUnknown*)(IHXMultiInstanceSiteUserSupplier*)(new CHXMultiInstanceSiteUserSupplier());
        if( !*ppUnknown )
        {
            return HXR_OUTOFMEMORY;
        }
	return ((IUnknown*)*ppUnknown)->
		    QueryInterface(IID_IHXMultiInstanceSiteUserSupplier,
				(void**)ppUnknown);
    }
#endif /* HELIX_FEATURE_VIDEO */
#if !defined(_STATICALLY_LINKED)
    else if(IsEqualCLSID(rclsid, CLSID_IHXPluginGroupEnumerator))
    {
	IHXPlugin2Handler* pPlugin2Handler = NULL;
	m_pContext->QueryInterface
	(
	    IID_IHXPlugin2Handler,
	    (void**)&pPlugin2Handler
	);

	*ppUnknown = (IUnknown*)(IHXPluginGroupEnumerator*)
	(
	    new CHXPlugin2GroupEnumerator(pPlugin2Handler)
	);
        if( !*ppUnknown )
        {
            return HXR_OUTOFMEMORY;
        }

	HX_RELEASE(pPlugin2Handler);

	return ((IUnknown*)*ppUnknown)->QueryInterface
	(
	    IID_IHXPluginGroupEnumerator,
	    (void**)ppUnknown
	);
    }

#endif /* _STATICALLY_LINKED */
    else if (IsEqualCLSID(rclsid, CLSID_IHXDllAccess))
    {
	*ppUnknown = (IUnknown*)(IHXDllAccess*)(new DLLAccessServer);

	if (*ppUnknown)
	{
	    ((IUnknown*)*ppUnknown)->AddRef();
	    return HXR_OK;
	}

	return HXR_OUTOFMEMORY;
    }
    else
    {
classFactory:
	// Try the factory plugins
	IHXPlugin2Handler* pPlugin2Handler = NULL;
	m_pContext->QueryInterface
	(
	    IID_IHXPlugin2Handler,
	    (void**)&pPlugin2Handler
	);

	*ppUnknown = NULL;
	IUnknown* pIUnknownInstance = NULL;




	if(pPlugin2Handler)
	{
	    if 
	    (
		SUCCEEDED
		(
		    pPlugin2Handler->FindImplementationFromClassID
		    (
			rclsid, 
			pIUnknownInstance
		    )
		)
	    )
	    {
		*ppUnknown = pIUnknownInstance;
		HX_RELEASE(pPlugin2Handler);
		return HXR_OK;
	    }
	}
#if defined(HELIX_FEATURE_PLUGINHANDLER1)
	else
	{   // The encoder still uses the old PluginHandler..

	    // Try the factory plugins
	    PluginHandler* pPluginHandler = NULL;
	    m_pContext->QueryInterface
	    (
		IID_IHXPluginHandler,
		(void**)&pPluginHandler
	    );

	    *ppUnknown = NULL;

	    if(pPluginHandler)
	    {
		PluginHandler::Factory* pFactories;
		PluginHandler::Plugin*  pPlugin;

		CHXSimpleList::Iterator i;

		pFactories = pPluginHandler->m_factory_handler;
		for(i = pFactories->m_pPlugins->Begin();
		    i != pFactories->m_pPlugins->End();
		    ++i)
		{
		    IUnknown* pInstance = 0;
		    pPlugin = (PluginHandler::Plugin*)(*i);
		    pPlugin->GetInstance(&pInstance);

		    if(pInstance)
		    {
			HX_RESULT res;
			IHXPlugin* pFPlugin = 0;
			res = pInstance->QueryInterface(IID_IHXPlugin,
							(void**)&pFPlugin);
			if(res == HXR_OK)
			{
			    IHXCommonClassFactory* pClassFactory;

			    pFPlugin->InitPlugin(m_pContext);
			    pFPlugin->Release();
			    res = pInstance->QueryInterface(
				IID_IHXCommonClassFactory,
				(void**)&pClassFactory);
			    if(HXR_OK == res)
			    {
				res = pClassFactory->CreateInstance(rclsid,
								   ppUnknown);
				if(HXR_OK != res)
				    *ppUnknown = NULL;
				pClassFactory->Release();
			    }
			}
			pInstance->Release();
			pPlugin->ReleaseInstance();
			if(*ppUnknown)
			{
			    return HXR_OK;
			}
		    }
		}
	    }
	    HX_RELEASE(pPluginHandler);
	}
#endif /* HELIX_FEATURE_PLUGINHANDLER1 */
	HX_RELEASE(pPlugin2Handler);
    }
 
    *ppUnknown = NULL;
    return HXR_NOINTERFACE;
}

/************************************************************************
 *  Method:
 *	IHXController::CreateInstanceAggregatable
 *  Purpose:
 *	Creates instances of common objects supported by the system,
 *	like IHXBuffer, IHXPacket, IHXValues, etc.
 *
 *	This method is similar to Window's CoCreateInstance() in its 
 *	purpose, except that it only creates objects of a well known
 *	types.
 *
 *	NOTE 1: Unlike CreateInstance, this method will create internal
 *		objects that support Aggregation.
 *
 *	NOTE 2: The output interface is always the non-delegating 
 *		IUnknown.
 */
STDMETHODIMP HXCommonClassFactory::CreateInstanceAggregatable
(
    REFCLSID	    /*IN*/	rclsid,
    REF(IUnknown*)  /*OUT*/	pUnknown,
    IUnknown*	    /*IN*/	pUnkOuter
)
{
    pUnknown = NULL;
    return HXR_NOINTERFACE;
}