sm1rendr.h

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: sm1rendr.h,v 1.3.2.1 2004/07/09 01:57:34 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (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.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * 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 _SM1RENDR_H_
#define _SM1RENDR_H_

#include "hxwintyp.h"
#include "hxwin.h"
#include "baseobj.h"

#define STREAM_MAJOR_VERSION  0
#define STREAM_MINOR_VERSION  0

#define CONTENT_MAJOR_VERSION 0
#define CONTENT_MINOR_VERSION 0

class CSmilPacketParser;
class CSmil1SiteSupplier;
class CHXSimpleList;
class CSmil1DocumentRenderer;
class CSmilDocumentPacket;

/////////////////////////////////////////////////////////////////////////////
// 
//  Class:
//
//	CSmil1Renderer
//
//  Purpose:
//
//	SMIL implementation of a basic renderer.
//

class CSmil1Renderer :   public IHXPlugin
			, public IHXRenderer
			, public IHXStatistics
			, public IHXPersistentRenderer
                        , public CHXBaseCountingObject
{
private:

    LONG32		    m_lRefCount;
    IUnknown*		    m_pContext;
    IHXStream*		    m_pStream;
    IHXPlayer*		    m_pPlayer;
    IHXClientEngine*	    m_pEngine;
    IUnknown*		    m_pClientContext;
    ULONG32		    m_ulLastTime;
    UINT32		    m_ulGranularity;
    UINT16		    m_uLayoutRule;
    UINT16		    m_uSourceRule;
    CHXString		    m_urlPrefix;
    CHXString		    m_urlRoot;
    char*		    m_pURLFragment;
    CSmilPacketParser*	    m_pPacketParser;
    CSmil1DocumentRenderer*  m_pSmilDocRenderer;
    CHXString		    m_smilDocument;
    UINT32		    m_ulTotalSMILPackets;
    IHXCommonClassFactory* m_pCommonClassFactory;
    HX_RESULT		    m_lastOnPacketResult;

#if defined(HELIX_FEATURE_SMIL2)
    // /All of the following are needed for handling SMIL 2+ streams:
    CSmilRenderer*	    m_pNextGenSmilRenderer;
    BOOL		    m_bIsHigherVersionSmilStreamFromOldSMIL1FF;
    IHXValues*		    m_pHeader;
    IHXBuffer*		    m_pDefaultNamespace;
    BOOL		    m_bCSmil1StartStreamHasBeenCalled;
    BOOL		    m_bCSmil1EndStreamHasBeenCalled;
    BOOL		    m_bCSmil1GetDisplayTypeHasBeenCalled;
    BOOL		    m_bCSmil1InitializeStatisticsHasBeenCalled;
    BOOL		    m_bCSmil1InitPersistenHasBeenCalled;
    BOOL		    m_bCSmil1GetElementPropertiesHasBeenCalled;
    BOOL		    m_bCSmil1RemoveLayoutSiteGroupHasBeenCalled;
    UINT32		    m_ulRegistryID;
    UINT16		    m_uGroupID;
    UINT16		    m_uTrackID;
#endif /* defined(HELIX_FEATURE_SMIL2). */
    UINT32		    m_ulPersistentComponentID;
    UINT16		    m_uPersistentGroupID;
    UINT16		    m_uPersistentTrackID;
    IHXPersistentRenderer* m_pPersistentParent;
    // /End "...handling SMIL 2+ streams".

			     
    BOOL		    m_bUseNestedMeta;    
    UINT32		    m_ulPersistentVersion;
    PersistentType	    m_persistentType;
    IHXPersistentComponentManager* m_pPersistentComponentManager;

    static const char* const	zm_pName;
    static const char* const	zm_pDescription;
    static const char* const	zm_pCopyright;
    static const char* const	zm_pMoreInfoURL;
    static const char* const	zm_pStreamMimeTypes[];

    ~CSmil1Renderer		    ();
    PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME

    HX_RESULT handleSMILDocumentPacket	
				    (CSmilDocumentPacket* pPacket);
    HX_RESULT getErrorString	    (SMILErrorTag tag,
				    CHXString& str);

    HX_RESULT findValidDefaultNamespace(IHXBuffer* pStartOfFile);
    HX_RESULT findSmilTagAndVersion	(IHXBuffer* pFileChunk);
    HX_RESULT setUpNextGenSmilRenderer	();

    friend class CSmil1DocumentRenderer;

#ifdef _WINDOWS
    HDC m_hDC;
#endif

public:
    CSmil1Renderer			();

    // CSmil1Renderer methods
    static HX_RESULT STDAPICALLTYPE CanUnload2(void);
    static HX_RESULT STDAPICALLTYPE HXCreateInstance(IUnknown** ppIUnknown);


    IHXCommonClassFactory* getFactory	()
					{ return m_pCommonClassFactory; }
    IHXClientEngine* getClientEngine	() 
					{ return m_pEngine; }
    IUnknown* getClientContext		() 	
					{ return m_pClientContext; }
    IHXPlayer* getPlayer		()
					{ return m_pPlayer; }
    CHXString& getURLPrefix		()
					{ return m_urlPrefix; }
    CHXString& getURLRoot		()
					{ return m_urlRoot; } 
    UINT32 getGranularity		()
					{ return m_ulGranularity; }

    HX_RESULT	HandleAddLayoutSiteGroup	(IUnknown* pLSG);
    HX_RESULT	HandleRemoveLayoutSiteGroup	(IUnknown* pLSG);
    HX_RESULT	HandleAttachElementLayout(IUnknown* pLSG, IHXValues* pProps);
    void	generatePreFix		(void);

#if defined(HELIX_FEATURE_SMIL2)
    BOOL	isHigherVersionSmilStreamFromOldSMIL1FF() {
			return m_bIsHigherVersionSmilStreamFromOldSMIL1FF;}
#endif /* defined(HELIX_FEATURE_SMIL2). */

    // *** IHXPlugin methods ***

    /************************************************************************
     *	Method:
     *	    IHXPlugin::GetPluginInfo
     *	Purpose:
     *	    Returns the basic information about this plugin. Including:
     *
     *	    bLoadMultiple	whether or not this plugin DLL can be loaded
     *				multiple times. All File Formats must set
     *				this value to TRUE.
     *	    pDescription	which is used in about UIs (can be NULL)
     *	    pCopyright		which is used in about UIs (can be NULL)
     *	    pMoreInfoURL	which is used in about UIs (can be NULL)
     */
    STDMETHOD(GetPluginInfo)	(THIS_
				REF(BOOL)	 /*OUT*/ bLoadMultiple,
				REF(const char*) /*OUT*/ pDescription,
				REF(const char*) /*OUT*/ pCopyright,
				REF(const char*) /*OUT*/ pMoreInfoURL,
				REF(ULONG32)	 /*OUT*/ ulVersionNumber
				);

    /************************************************************************
     *	Method:
     *	    IHXPlugin::InitPlugin
     *	Purpose:
     *	    Initializes the plugin for use. This interface must always be
     *	    called before any other method is called. This is primarily needed 
     *	    so that the plugin can have access to the context for creation of
     *	    IHXBuffers and IMalloc.
     */
    STDMETHOD(InitPlugin)   (THIS_