mirror of
https://github.com/reactos/wine.git
synced 2024-11-26 13:10:28 +00:00
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
|
|
* An implementation of IUnknown.
|
|
*
|
|
* Copyright (C) Hidenori TAKESHIMA <hidenori@a2.ctktv.ne.jp>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef WINE_DSHOW_IUNK_H
|
|
#define WINE_DSHOW_IUNK_H
|
|
|
|
/*
|
|
To avoid implementing IUnknown for all interfaces,
|
|
|
|
1) To give a method to get rel-offset of IUnknown.
|
|
2) The IUnknown knows all IIDs and offsets of interfaces.
|
|
|
|
So each implementation must have following two members
|
|
with the following order:
|
|
|
|
typedef struct IDispatchImpl
|
|
{
|
|
ICOM_VFIELD(IDispatch); <-pointer of the interface.
|
|
size_t ofsIUnknown; <-ofs<IDispatchImpl> - ofs<QUARTZ_IUnkImpl>
|
|
};
|
|
|
|
*/
|
|
|
|
/* for InterlockedExchangeAdd. */
|
|
#include <pshpack4.h>
|
|
|
|
typedef struct QUARTZ_IFEntry
|
|
{
|
|
const IID* piid; /* interface ID. */
|
|
size_t ofsVTPtr; /* offset from IUnknown. */
|
|
} QUARTZ_IFEntry;
|
|
|
|
typedef struct QUARTZ_IFDelegation
|
|
{
|
|
struct QUARTZ_IFDelegation* pNext;
|
|
HRESULT (*pOnQueryInterface)(
|
|
IUnknown* punk, const IID* piid, void** ppobj );
|
|
} QUARTZ_IFDelegation;
|
|
|
|
typedef struct QUARTZ_IUnkImpl
|
|
{
|
|
/* pointer of IUnknown interface. */
|
|
ICOM_VFIELD(IUnknown);
|
|
|
|
/* array of supported IIDs and offsets. */
|
|
const QUARTZ_IFEntry* pEntries;
|
|
DWORD dwEntries;
|
|
/* list of delegation handlers. */
|
|
QUARTZ_IFDelegation* pDelegationFirst;
|
|
/* called on final release. */
|
|
void (*pOnFinalRelease)(IUnknown* punk);
|
|
|
|
/* IUnknown fields. */
|
|
LONG ref;
|
|
IUnknown* punkControl;
|
|
} QUARTZ_IUnkImpl;
|
|
|
|
#include <poppack.h>
|
|
|
|
|
|
void QUARTZ_IUnkInit( QUARTZ_IUnkImpl* pImpl, IUnknown* punkOuter );
|
|
void QUARTZ_IUnkAddDelegation(
|
|
QUARTZ_IUnkImpl* pImpl, QUARTZ_IFDelegation* pDelegation );
|
|
|
|
|
|
#endif /* WINE_DSHOW_IUNK_H */
|