/*
//+---------------------------------------------------------------------------
//
//  Microsoft Windows
//  Copyright (C) Microsoft Corporation, 1992 - 1997.
//
//  File:       objbase.h
//
//  Contents:   Component object model defintions.
//
//  History:    02-7-94   terryru           Created.
//
//----------------------------------------------------------------------------
*/
/*
 * Taken from objbase.h
 */
#ifndef _D3DCOM_H
#define _D3DCOM_H

#include "subwtype.h"

#ifndef WIN32
#define __export
#define __stdcall
#endif /* WIN32 */

typedef void    IUnknown;
#ifndef WINAPI
#define WINAPI
#endif
#define FAR
#define MAKE_HRESULT(sev,fac,code) \
    ((HRESULT) (((unsigned long)(sev)<<31) | \
            ((unsigned long)(fac)<<16) | \
             ((unsigned long)(code))))

/* Component Object Model defines, and macros */

#ifdef __cplusplus
    #define EXTERN_C    extern "C"
#else
    #define EXTERN_C    extern
#endif

#ifdef WIN32

/* Win32 doesn't support __export */

#define STDMETHODCALLTYPE       __stdcall
#define STDMETHODVCALLTYPE      __cdecl

#define STDAPICALLTYPE          __stdcall
#define STDAPIVCALLTYPE         __cdecl

#else

#define STDMETHODCALLTYPE       __export __stdcall
#define STDMETHODVCALLTYPE      __export __cdecl

#define STDAPICALLTYPE          __export __stdcall
#define STDAPIVCALLTYPE         __export __cdecl

#endif


#define STDAPI                  EXTERN_C HRESULT STDAPICALLTYPE
#define STDAPI_(type)           EXTERN_C type STDAPICALLTYPE

#define STDMETHODIMP            HRESULT STDMETHODCALLTYPE
#define STDMETHODIMP_(type)     type STDMETHODCALLTYPE

/* The 'V' versions allow Variable Argument lists. */

#define STDAPIV                 EXTERN_C HRESULT STDAPIVCALLTYPE
#define STDAPIV_(type)          EXTERN_C type STDAPIVCALLTYPE

#define STDMETHODIMPV           HRESULT STDMETHODVCALLTYPE
#define STDMETHODIMPV_(type)    type STDMETHODVCALLTYPE

/****** Interface Declaration ***********************************************/

/*
 *      These are macros for declaring interfaces.  They exist so that
 *      a single definition of the interface is simulataneously a proper
 *      declaration of the interface structures (C++ abstract classes)
 *      for both C and C++.
 *
 *      DECLARE_INTERFACE(iface) is used to declare an interface that does
 *      not derive from a base interface.
 *      DECLARE_INTERFACE_(iface, baseiface) is used to declare an interface
 *      that does derive from a base interface.
 *
 *      By default if the source file has a .c extension the C version of
 *      the interface declaratations will be expanded; if it has a .cpp
 *      extension the C++ version will be expanded. if you want to force
 *      the C version expansion even though the source file has a .cpp
 *      extension, then define the macro "CINTERFACE".
 *      eg.     cl -DCINTERFACE file.cpp
 *
 *      Example Interface declaration:
 *
 *          #undef  INTERFACE
 *          #define INTERFACE   IClassFactory
 *
 *          DECLARE_INTERFACE_(IClassFactory, IUnknown)
 *          {
 *              // *** IUnknown methods ***
 *              STDMETHOD(QueryInterface) (THIS_
 *                                        REFIID riid,
 *                                        LPVOID FAR* ppvObj) PURE;
 *              STDMETHOD_(ULONG,AddRef) (THIS) PURE;
 *              STDMETHOD_(ULONG,Release) (THIS) PURE;
 *
 *              // *** IClassFactory methods ***
 *              STDMETHOD(CreateInstance) (THIS_
 *                                        LPUNKNOWN pUnkOuter,
 *                                        REFIID riid,
 *                                        LPVOID FAR* ppvObject) PURE;
 *          };
 *
 *      Example C++ expansion:
 *
 *          struct FAR IClassFactory : public IUnknown
 *          {
 *              virtual HRESULT STDMETHODCALLTYPE QueryInterface(
 *                                                  IID FAR& riid,
 *                                                  LPVOID FAR* ppvObj) = 0;
 *              virtual HRESULT STDMETHODCALLTYPE AddRef(void) = 0;
 *              virtual HRESULT STDMETHODCALLTYPE Release(void) = 0;
 *              virtual HRESULT STDMETHODCALLTYPE CreateInstance(
 *                                              LPUNKNOWN pUnkOuter,
 *                                              IID FAR& riid,
 *                                              LPVOID FAR* ppvObject) = 0;
 *          };
 *
 *          NOTE: Our documentation says '#define interface class' but we use
 *          'struct' instead of 'class' to keep a lot of 'public:' lines
 *          out of the interfaces.  The 'FAR' forces the 'this' pointers to
 *          be far, which is what we need.
 *
 *      Example C expansion:
 *
 *          typedef struct IClassFactory
 *          {
 *              const struct IClassFactoryVtbl FAR* lpVtbl;
 *          } IClassFactory;
 *
 *          typedef struct IClassFactoryVtbl IClassFactoryVtbl;
 *
 *          struct IClassFactoryVtbl
 *          {
 *              HRESULT (STDMETHODCALLTYPE * QueryInterface) (
 *                                                  IClassFactory FAR* This,
 *                                                  IID FAR* riid,
 *                                                  LPVOID FAR* ppvObj) ;
 *              HRESULT (STDMETHODCALLTYPE * AddRef) (IClassFactory FAR* This) ;
 *              HRESULT (STDMETHODCALLTYPE * Release) (IClassFactory FAR* This) ;
 *              HRESULT (STDMETHODCALLTYPE * CreateInstance) (
 *                                                  IClassFactory FAR* This,
 *                                                  LPUNKNOWN pUnkOuter,
 *                                                  IID FAR* riid,
 *                                                  LPVOID FAR* ppvObject);
 *              HRESULT (STDMETHODCALLTYPE * LockServer) (
 *                                                  IClassFactory FAR* This,
 *                                                  BOOL fLock);
 *          };
 */


#if defined(__cplusplus) && !defined(CINTERFACE)
/*#define interface               struct FAR */
#define interface struct
#define STDMETHOD(method)       virtual HRESULT STDMETHODCALLTYPE method
#define STDMETHOD_(type,method) virtual type STDMETHODCALLTYPE method
#define PURE                    = 0
#define THIS_
#define THIS                    void
#define DECLARE_INTERFACE(iface)    interface iface
#define DECLARE_INTERFACE_(iface, baseiface)    interface iface : public baseiface



#else

#define interface               struct


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




#define PURE
#define THIS_                   INTERFACE FAR* This,
#define THIS                    INTERFACE FAR* This
#ifdef CONST_VTABLE
#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
#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

#endif /* _D3DCOM_H */