hxcom.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: hxcom.h,v 1.22.2.3 2004/07/09 01:45:08 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 _HXCOM_H_
#define _HXCOM_H_

#include "hxtypes.h"		/* Needed for most type definitions */

// have to use the double expansion to get the prescan level

#define STATCONCAT1(w,x,y,z) STATCONCAT2(w,x,y,z)
#define STATCONCAT2(w,x,y,z) w##x##y##z  

#ifdef _STATICALLY_LINKED
#ifndef _PLUGINNAME
#define ENTRYPOINT(func) STATCONCAT1(entrypoint_error_symbol_should_not_be_needed,_PLUGINNAME,_,func)
#else /* _PLUGINNAME */
#define ENTRYPOINT(func) STATCONCAT1(entrypoint_for_,_PLUGINNAME,_,func)
#endif
#else /* _STATICALLY_LINKED */
#define ENTRYPOINT(func) func
#endif

/*
 * We include objbase.h when building for windows so that hxcom.h can 
 * easily be used in any windows code.
 */
#ifdef _WIN32
#include <objbase.h>
#endif	/* _WIN32 */


#include "hxresult.h"

/*
 *  REF:
 *	Use this for reference parameters, so that C users can 
 *	use the interface as well.
 */
#if defined(__cplusplus)
#define REF(type)   type&
#else
#define REF(type)	const type * const
#endif

/*
 *  CONSTMETHOD:
 *	Use this for constant methods in an interface 
 *	Compiles away under C
 */
#if !defined( CONSTMETHOD )

#if defined(__cplusplus)
#define CONSTMETHOD	const
#else
#define CONSTMETHOD
#endif

#endif
/*
 *  CALL:
 *
 *	Used by C users to easily call a function through an interface
 *
 *  EXAMPLE:
 *
 *	pIFooObject->CALL(IFoo,DoSomething)(bar);
 *
 */
#if !defined(__cplusplus) || defined(CINTERFACE)
#define CALL(iface, func) iface##Vtbl->func
#endif


#define _INTERFACE struct

/*
 * If using windows.h or the windows implementation of COM
 * these defines are not needed.
 */
#if !defined( _OBJBASE_H_ ) 

#ifdef _WIN16
typedef unsigned int	MMRESULT;
#define FAR             _far
#else
#define FAR             
#endif /* WIN16 */
#define PASCAL          _pascal
#define CDECL           _cdecl

/*
 * EXTERN_C
 */
#ifndef EXTERN_C
#ifdef __cplusplus
#define EXTERN_C    extern "C"
#else
#define EXTERN_C    extern
#endif
#endif

#ifdef OLDERRORCODES
#ifndef MAKE_HRESULT
#define MAKE_HRESULT(sev,fac,code) ((HRESULT) (((unsigned long)(sev)<<31) | ((unsigned long)(fac)<<16) | ((unsigned long)(code))))
#endif /*MAKE_HRESULT*/
#endif /* OLDERRORCODES */

/*
 *  STDMETHODCALLTYPE
 */
#ifndef STDMETHODCALLTYPE
#if defined(_WIN32) || defined(_MPPC_)
#ifdef _MPPC_
#define STDMETHODCALLTYPE       __cdecl
#else
#define STDMETHODCALLTYPE       __stdcall
#endif
#elif defined(_WIN16)
#define STDMETHODCALLTYPE       __export FAR CDECL
#else
#define STDMETHODCALLTYPE
#endif
#endif

/*
 *  STDMETHODVCALLTYPE
 */
#ifndef STDMETHODVCALLTYPE
#if defined(_WINDOWS) || defined(_MPPC_)
#define STDMETHODVCALLTYPE      __cdecl
#else
#define STDMETHODVCALLTYPE
#endif
#endif

/*
 *  STDAPICALLTYPE
 */
#ifndef STDAPICALLTYPE
#if defined(_WIN32) || defined(_MPPC_)
#define STDAPICALLTYPE          __stdcall
#elif defined(_WIN16)
#define STDAPICALLTYPE          __export FAR PASCAL
#else
#define STDAPICALLTYPE
#endif
#endif

/*
 *  STDAPIVCALLTYPE
 */
#ifndef STDAPIVCALLTYPE
#if defined(_WINDOWS) || defined(_MPPC_)
#define STDAPIVCALLTYPE         __cdecl
#else
#define STDAPIVCALLTYPE
#endif
#endif

/*
 *  Standard API defines:
 *
 *	NOTE: the 'V' versions allow Variable Argument lists.
 *
 *	STDAPI
 *	STDAPI_(type)
 *	STDAPIV
 *	STDAPIV_(type)
 */
#ifndef STDAPI
#define STDAPI                  EXTERN_C HX_RESULT STDAPICALLTYPE
#endif
#ifndef STDAPI_
#define STDAPI_(type)           EXTERN_C type STDAPICALLTYPE
#endif
#ifndef STDAPIV
#define STDAPIV                 EXTERN_C HX_RESULT STDAPIVCALLTYPE
#endif
#ifndef STDAPIV_
#define STDAPIV_(type)          EXTERN_C type STDAPIVCALLTYPE
#endif


/*
 *  Standard Interface Method defines:
 *
 *	NOTE: the 'V' versions allow Variable Argument lists.
 *
 *	STDMETHODIMP
 *	STDMETHODIMP_(type)
 *	STDMETHODIMPV
 *	STDMETHODIMPV_(type)
 */
#ifndef STDMETHODIMP
#define STDMETHODIMP            HX_RESULT STDMETHODCALLTYPE
#endif
#ifndef STDMETHODIMP_
#define STDMETHODIMP_(type)     type STDMETHODCALLTYPE
#endif
#ifndef STDMETHODIMPV
#define STDMETHODIMPV           HX_RESULT STDMETHODVCALLTYPE
#endif
#ifndef STDMETHODIMPV_
#define STDMETHODIMPV_(type)    type STDMETHODVCALLTYPE
#endif


#if defined(__cplusplus) && !defined(CINTERFACE)
#define _INTERFACE struct
#define STDMETHOD(method)       virtual HX_RESULT STDMETHODCALLTYPE method
#define STDMETHOD_(type,method) virtual type STDMETHODCALLTYPE method
#define PURE                    = 0
#define THIS_
#define THIS                    void

#if defined(_WINDOWS) && defined(EXPORT_CLASSES)
#define DECLARE_INTERFACE(iface)    _INTERFACE HXEXPORT_CLASS iface
#define DECLARE_INTERFACE_(iface, baseiface)    _INTERFACE HXEXPORT_CLASS iface : public baseiface
#else
#define DECLARE_INTERFACE(iface)    _INTERFACE iface
#define DECLARE_INTERFACE_(iface, baseiface)    _INTERFACE iface : public baseiface
#endif // defined(_WINDOWS) && defined(EXPORT_CLASSES)

#if !defined(BEGIN_INTERFACE)
#if defined(_MPPC_)  && \
    ( (defined(_MSC_VER) || defined(__SC__) || defined(__MWERKS__)) && \
    !defined(NO_NULL_VTABLE_ENTRY) )
   #define BEGIN_INTERFACE virtual void a() {}
   #define END_INTERFACE
#else
   #define BEGIN_INTERFACE
   #define END_INTERFACE
#endif
#endif


#else

#define _INTERFACE               struct

#define STDMETHOD(method)       HX_RESULT (STDMETHODCALLTYPE * method)
#define STDMETHOD_(type,method) type (STDMETHODCALLTYPE * method)

#if !defined(BEGIN_INTERFACE)
#if defined(_MPPC_)
    #define BEGIN_INTERFACE       void    *b;
    #define END_INTERFACE
#else
    #define BEGIN_INTERFACE
    #define END_INTERFACE
#endif
#endif


#define PURE
#define THIS_                   INTERFACE FAR* This,
#define THIS                    INTERFACE FAR* This
#ifdef CONST_VTABLE
#undef CONST_VTBL
#define CONST_VTBL const
#define DECLARE_INTERFACE(iface)    typedef _INTERFACE iface { \
                                    const struct iface##Vtbl FAR* lpVtbl; \
                                } iface; \
                                typedef const struct iface##Vtbl iface##Vtbl; \
                                const struct iface##Vtbl
#else
#undef CONST_VTBL
#define CONST_VTBL
#define DECLARE_INTERFACE(iface)    typedef _INTERFACE iface { \
                                    struct iface##Vtbl FAR* lpVtbl; \
                                } iface; \
                                typedef struct iface##Vtbl iface##Vtbl; \
                                struct iface##Vtbl
#endif
#define DECLARE_INTERFACE_(iface, baseiface)    DECLARE_INTERFACE(iface)

#endif

/*
 *  COMMON TYPES
 */

#if !defined(HELIX_FEATURE_FULLGUID)

#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)

#define DEFINE_GUID_ENUM(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
    name = l + w1 * 3 + w2 * 5 + b1 * 7 + b2 * 11 + b3 * 13 + b4 * 17 +   \
           b5 * 19 + b6 * 23 + b7 * 29 + b8 * 31,

#ifndef GUID_DEFINED
#define GUID_DEFINED
typedef enum _GUIDNoConflict
{
    GUID_NULL,
    DEFINE_GUID_ENUM(IID_IUnknown, 0x00000000, 0x0000, 0x0000, 0xC0,
                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46)
    DEFINE_GUID_ENUM(IID_IMalloc,  0x00000002, 0x0000, 0x0000, 0xC0,
                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46)
#include "hxiids.h"
#include "hxpiids.h"
    NUM_GUIDS
} GUID;
#endif

#else /* #if !defined(HELIX_FEATURE_FULLGUID) */
#ifndef GUID_DEFINED
#define GUID_DEFINED
typedef struct  _GUID
    {
    ULONG32		Data1;
    UINT16		Data2;
    UINT16		Data3;
    UCHAR		Data4[ 8 ];
    }	GUID;
#endif
#endif /* #if !defined(HELIX_FEATURE_FULLGUID) #else */

#if !defined( __IID_DEFINED__ )
#define __IID_DEFINED__
typedef GUID IID;
#define IID_NULL            GUID_NULL
typedef GUID CLSID;
#define CLSID_NULL          GUID_NULL

#if defined(__cplusplus)
#ifndef _REFGUID_DEFINED
#define _REFGUID_DEFINED
#define REFGUID             const GUID &
#endif

#ifndef _REFIID_DEFINED
#define _REFIID_DEFINED
#define REFIID              const IID &
#endif

#ifndef _REFCLSID_DEFINED
#define _REFCLSID_DEFINED
#define REFCLSID            const CLSID &
#endif

#else
#ifndef _REFGUID_DEFINED
#define _REFGUID_DEFINED
#define REFGUID             const GUID * const
#endif
#ifndef _REFIID_DEFINED
#define _REFIID_DEFINED
#define REFIID              const IID * const
#endif
#ifndef _REFCLSID_DEFINED
#define _REFCLSID_DEFINED
#define REFCLSID            const CLSID * const
#endif
#endif
#endif


#if defined(HELIX_FEATURE_FULLGUID)

#if !defined (INITGUID) || (defined (_STATICALLY_LINKED) && !defined(NCIHACK))

#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
    EXTERN_C const GUID FAR name

#define DEFINE_GUID_ENUM(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
    EXTERN_C const GUID FAR name;

#else /* #if !defined (INITGUID) || (defined (_STATICALLY_LINKED) && !defined(NCIHACK)) */

#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
        EXTERN_C const GUID name \
                = { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } }

#define DEFINE_GUID_ENUM(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
        EXTERN_C const GUID name \
                = { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } };

#endif /* #if !defined (INITGUID) || (defined (_STATICALLY_LINKED) && !defined(NCIHACK)) #else */

#endif /* #if defined(HELIX_FEATURE_FULLGUID) */

/* memcmp is in string.h on symbian and MacOSX (or Darwin). */
#if defined(_OPENWAVE) || defined(_MACINTOSH)
#include "hlxclib/string.h"
#elif !defined(_VXWORKS) && !defined(_SYMBIAN) && !defined(_MAC_MACHO)
#include "hlxclib/memory.h"		/* for memcmp */
#endif


#ifdef __cplusplus
inline BOOL IsEqualGUID(REFGUID rguid1, REFGUID rguid2)
{
#if defined(HELIX_FEATURE_FULLGUID)
   return !memcmp(&rguid1, &rguid2, sizeof(GUID));
#else	// HELIX_FEATURE_FULLGUID
   return (rguid1 == rguid2);
#endif	// HELIX_FEATURE_FULLGUID
    
}

inline void SetGUID(GUID& rguid1, REFGUID rguid2)
{
#if defined(HELIX_FEATURE_FULLGUID)
    memcpy(&rguid1, &rguid2, sizeof(GUID)); /* Flawfinder: ignore */