chxclientengine.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: CHXClientEngine.h,v 1.3.2.3 2004/07/09 01:49:47 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
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 * 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
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 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
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 * Contributor(s):
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 * ***** END LICENSE BLOCK ***** */

#ifndef _CHXCLIENT_ENGINE_H_
#define _CHXCLIENT_ENGINE_H_

#include "CHXClientUnknown.h"

#include "enter_hx_headers.h"
#include "hxcore.h"
#include "exit_hx_headers.h"

#include "HXClientCallbacks.h"

class CHXClientEngine : public IHXClientEngine
{
	DECLARE_UNKNOWN_NOCREATE( CHXClientEngine )

private:

	LONG32 m_lCount;
	
#ifndef HELIX_CONFIG_NOSTATICS
	static CHXClientEngine* m_SharedClientEngine;
	static const HXClientEngineCallbacks* m_pClientEngineCallbacks;
#endif

	HX_RESULT ClientEngineQI( REFIID riid, void** ppvObj );
	IHXClientEngine* CreateClientEngine( HX_RESULT* pResult );

protected:

    virtual ~CHXClientEngine( void );
    CHXClientEngine( void );

	virtual IHXClientEngine* GetClientEngine( void ) = 0;
	virtual IHXClientEngine* OnCreateClientEngine( HX_RESULT* pResult ) = 0;
	virtual void OnCloseClientEngine( void ) = 0;
	
public:

	static bool GetEngine( IHXClientEngine** ppIClientEngine );
	static bool CreateEngine( IHXClientEngine** ppIClientEngine );
	static void SetClientEngineCallbacks( const HXClientEngineCallbacks* pClientEngineCallbacks );
	static const HXClientEngineCallbacks* GetClientEngineCallbacks( void );
	
	// IHXClientEngine
	STDMETHOD ( CreatePlayer ) ( THIS_ REF( IHXPlayer* ) pPlayer );
	STDMETHOD ( ClosePlayer ) ( THIS_ IHXPlayer* pPlayer );
	STDMETHOD_( UINT16, GetPlayerCount ) ( THIS );
	STDMETHOD ( GetPlayer ) ( THIS_ UINT16 nPlayerNumber, REF( IUnknown* ) pUnknown );
	STDMETHOD ( EventOccurred ) ( THIS_ HXxEvent* pEvent );
};

CHXClientEngine* CreatePlatformClientEngine( void );

#endif