hwmemobj.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 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
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (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.
- *
- * 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 _HWMEMOBJ_H_
- #define _HWMEMOBJ_H_
- // Class to access hardware memory represented by a structre.
- // Some video cards return a structure instead of a buffer for
- // windows DirectDraw::Lock calls. This class provides a base
- // framework to support any proprietary format.
- // Flags for DeviceToRenderer
- #define WRITE_VIDEO_TO_STRUCT (1<<0)
- // Flags for QueryOperation
- #define PERFORMED_HW_MOTION_COMP (1<<0)
- #define PERFORMED_HW_IDCT (1<<1)
- #define PERFORMED_HW_ALPHA_BLEND (1<<2)
- class CBaseSurface;
- class CHWMemObj
- {
- public:
- CHWMemObj(CBaseSurface* pSurface) : m_pSurface(pSurface),
- m_ulOperationFlags(0) {};
- virtual ~CHWMemObj() {};
- // Convert a proprietary surface pointer to something a
- // render plugin can use.
- virtual void* DeviceToRenderer(UCHAR* pHwMem,
- INT32& nPitch,
- UINT32 ulFlags=0)
- {return NULL;}
- // Convert the render plugin data back to the device's native format
- virtual void* RendererToDevice(UCHAR* pRendPtr) {return NULL;}
-
- // Perform "actions" on the surface. This must support a bit
- // transfer at a minimum. Some devices may have hw capabilities
- // that can be used. Use the generic pParams for any other data
- // the device may need.
- virtual BOOL ProcessCommand(UCHAR* pSrcPtr,
- INT32 fourCCIn,
- HXxSize *pSrcSize,
- HXxRect *prSrcRect,
- UCHAR* pRendPtr,
- INT32 fourCCOut,
- HXxSize *pDestSize,
- HXxRect *prDestRect,
- void* pParam1=NULL,
- void* pParam2=NULL,
- void* pParam3=NULL)
- {return FALSE;}
- // Query the actions performed by ProcessCommand.
- virtual UINT32 QueryOperation() {return m_ulOperationFlags;}
- protected:
- CBaseSurface* m_pSurface;
- UINT32 m_ulOperationFlags;
- };
- #endif //_HWMEMOBJ_H_