hxplugin.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK *****
 * Version: RCSL 1.0/RPSL 1.0
 *
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
 *
 * The contents of this file, and the files included with this file, are
 * subject to the current version of the RealNetworks Public Source License
 * Version 1.0 (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the RealNetworks Community Source License Version 1.0
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
 * in which case the RCSL will apply. You may also obtain the license terms
 * directly from RealNetworks.  You may not use this file except in
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
 * applicable to this file, the RCSL.  Please see the applicable RPSL or
 * RCSL for the rights, obligations and limitations governing use of the
 * contents of the file.
 *
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the portions
 * it created.
 *
 * This file, and the files included with this file, is distributed and made
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 *
 * Technology Compatibility Kit Test Suite(s) Location:
 *    http://www.helixcommunity.org/content/tck
 *
 * Contributor(s):
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef HXPLUGIN_H__
#define HXPLUGIN_H__

#include "hxstring.h"
#include "hxtypes.h"
#include "hxcom.h"
#include "unkimp.h"


// Plugin Types.
#define	PLUGIN_FILESYSTEM_TYPE	    "PLUGIN_FILE_SYSTEM"
#define	PLUGIN_FILEFORMAT_TYPE	    "PLUGIN_FILE_FORMAT"
#define	PLUGIN_FILEWRITER_TYPE	    "PLUGIN_FILE_WRITER"
#define	PLUGIN_METAFILEFORMAT_TYPE  "PLUGIN_METAFILE_FORMAT"
#define	PLUGIN_RENDERER_TYPE	    "PLUGIN_RENDERER"
#define PLUGIN_STREAM_DESC_TYPE	    "PLUGIN_STREAM_DESC"
#define PLUGIN_CLASS_FACTORY_TYPE   "PLUGIN_CLASS_FACT"
#define PLUGIN_PAC_TYPE		    "PLUGIN_PAC"

#define	PLUGIN_CLASS		    "PluginType"
#define PLUGIN_FILENAME		    "PluginFilename"
#define PLUGIN_REGKEY_ROOT	    "PluginHandlerData"
#define PLUGIN_PLUGININFO	    "PluginInfo"
#define PLUGIN_GUIDINFO		    "GUIDInfo"
#define PLUGIN_NONHXINFO	    "NonHXDLLs"
#define PLUGIN_DESCRIPTION2	    "Description"
#define PLUGIN_FILE_HASH	    "FileHash"
#define PLUGIN_INDEX		    "IndexNumber"
#define PLUGIN_FILENAMES	    "FileInfo"
#define PLUGIN_COPYRIGHT2	    "Copyright"
#define PLUGIN_LOADMULTIPLE	    "LoadMultiple"
#define PLUGIN_VERSION		    "Version"
#define PLUGIN_FILESYSTEMSHORT	    "FileShort"
#define PLUGIN_FILESYSTEMPROTOCOL   "FileProtocol"
#define PLUGIN_FILEMIMETYPES	    "FileMime"
#define PLUGIN_FILEEXTENSIONS	    "FileExtensions"
#define PLUGIN_FILEOPENNAMES	    "FileOpenNames"
#define PLUGIN_RENDERER_MIME	    "RendererMime"
#define PLUGIN_RENDERER_GRANULARITY "Renderer_Granularity"
#define PLUGIN_STREAMDESCRIPTION    "StreamDescription"

#define PLUGIN_NUM_PLUGINS	    "NumPlugins"
#define PLUGIN_FILE_CHECKSUM	    "DLLCheckSum"
#define PLUGIN_DLL_SIZE		    "DLLSize"
#define PLUGIN_HAS_FACTORY	    "DLLHasFactory"

class HXPluginArchiveReader;
class HXPluginArchiveWriter;
class HXPluginDLL;

_INTERFACE IHXValues;
_INTERFACE IHXPlugin;

class HXPlugin 
: public CUnknownIMP
{
public:
    DECLARE_UNKNOWN_NOCREATE(HXPlugin)
public:

    HXPlugin(IUnknown* pContext);
    HXPlugin(IUnknown* pContext, HXPluginArchiveReader& ar);

    void Archive(HXPluginArchiveWriter& ar);

    ~HXPlugin();

    HX_RESULT Init(HXPluginDLL* pDll, UINT16 idxPlugin);
 
    BOOL DoesMatch(IHXValues* pValues);
    HX_RESULT GetValuesFromDLL(IHXPlugin* pHXPlugin);
    HX_RESULT GetPlugin(IUnknown*& pUnknown );
    HX_RESULT GetInstance(IUnknown*& pUnknown, IUnknown* pIUnkOuter = NULL );
    HX_RESULT GetPluginInfo(IHXValues*&);
    UINT16 GetIndex();

    HX_RESULT AddComponentInfo(IHXValues* pVal);


private:
    UINT16		    m_idxPlugin;
    HXPluginDLL*	    m_pDll;
    IHXValues*		    m_pValues;
    bool                    m_bCanUnload;
    IUnknown*		    m_pContext;
    IHXCommonClassFactory*  m_pClassFactory;

private:
    void SetPluginProperty(const char * pszPluginType);
    HX_RESULT   GetBasicValues(IHXPlugin* pHXPlugin);
    HX_RESULT	GetExtendedValues(IHXPlugin* pHXPlugin);
    HX_RESULT   CatStrings(char** pInStrings, IHXBuffer*& pOutBuffer);
    BOOL        AreBufferEqual(IHXBuffer* pBigBuff, IHXBuffer* pSmallBuff);
};


inline
UINT16 HXPlugin::GetIndex()
{
    return m_idxPlugin;
}

#endif /* HXPLUGIN_H__ */