/*
 * Copyright (C) Hidenori TAKESHIMA
 *
 * 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_SEEKPASS_H
#define WINE_DSHOW_SEEKPASS_H

/*
		implements CLSID_SeekingPassThru.

	- At least, the following interfaces should be implemented:

	IUnknown
		+ ISeekingPassThru

*/

#include "iunk.h"


/****************************************************************************/

typedef struct CPassThruImpl
{
	struct { ICOM_VFIELD(IMediaPosition); } mpos;
	struct { ICOM_VFIELD(IMediaSeeking); } mseek;

	IUnknown* punk;
	IPin* pPin;
} CPassThruImpl;

#define	CPassThruImpl_THIS(iface,member)		CPassThruImpl*	This = ((CPassThruImpl*)(((char*)iface)-offsetof(CPassThruImpl,member)))

HRESULT CPassThruImpl_InitIMediaPosition( CPassThruImpl* pImpl );
void CPassThruImpl_UninitIMediaPosition( CPassThruImpl* pImpl );
HRESULT CPassThruImpl_InitIMediaSeeking( CPassThruImpl* pImpl );
void CPassThruImpl_UninitIMediaSeeking( CPassThruImpl* pImpl );

HRESULT CPassThruImpl_QueryPosPass(
	CPassThruImpl* pImpl, IMediaPosition** ppPosition );
HRESULT CPassThruImpl_QuerySeekPass(
	CPassThruImpl* pImpl, IMediaSeeking** ppSeeking );

/****************************************************************************/

typedef struct QUARTZ_ISeekingPassThruImpl
{
	ICOM_VFIELD(ISeekingPassThru);
} QUARTZ_ISeekingPassThruImpl;

typedef struct CSeekingPassThru
{
	QUARTZ_IUnkImpl	unk;
	QUARTZ_ISeekingPassThruImpl	seekpass;

	/* ISeekingPassThru fields. */
	CRITICAL_SECTION	cs;
	CPassThruImpl	passthru;
} CSeekingPassThru;

#define	CSeekingPassThru_THIS(iface,member)		CSeekingPassThru*	This = ((CSeekingPassThru*)(((char*)iface)-offsetof(CSeekingPassThru,member)))

HRESULT QUARTZ_CreateSeekingPassThru(IUnknown* punkOuter,void** ppobj);
HRESULT QUARTZ_CreateSeekingPassThruInternal(IUnknown* punkOuter,CSeekingPassThru** ppobj,BOOL bRendering,IPin* pPin);


#endif  /* WINE_DSHOW_SEEKPASS_H */