linux_fb_surf.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2003 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 _LINUX_FB_SURF_H_
#define _LINUX_FB_SURF_H_

#include "minisurf.h"

class CLinuxFrameBufferSurface : public CMiniBaseSurface
{
  public:
    CLinuxFrameBufferSurface(IUnknown* pContext, CMiniBaseSite* pSite);
    virtual ~CLinuxFrameBufferSurface();
    
    virtual HX_RESULT _CreateDestBuffer(int cidIn, int nWidth, int nHeight, int& nCount); 
                     
    virtual HX_RESULT _LockDestBuffer(UCHAR** ppDestPtr,
                                      LONG32* pnDestPitch,
                                      int& cid,
                                      REF(HXxSize) srcSize,
                                      int nIndex=0);
                     
    virtual HX_RESULT _TransferToDestBuffer(UCHAR* pSrcBuffer,
                                            HXBitmapInfoHeader* pBitmapInfo,
                                            HXxRect* prSrcRect,
                                            HXxRect* prDstRect,
                                            UCHAR* pDstBuffer,
                                            LONG32 nDstPitch);
                     
    virtual HX_RESULT _UnlockDestBuffer(UCHAR* pSurfPtr, int nIndex=0);
    virtual HX_RESULT _RenderDestBuffer(HXxRect* prSrcRect,
                                        HXxRect* prDstRect,
                                        int nIndex=0);
    
    virtual HX_RESULT _DestroyDestBuffer(int cid, int nCount=1); 


  protected:

    virtual int GetDstCID(int nIndex=0);

    int           m_nScreenNumber;
    unsigned int  m_unDepth;
    int           m_nBitsPerPixel;
    HXxSize       m_surfaceSize;
    UCHAR*        m_pCompositionSurface;
    UINT32        m_nCompositionSize;
    UINT32        m_nCompositionPitch;
    

  private:
    HX_RESULT _OpenFrameBuffer();
    HX_RESULT _ResizeVideoBuffer( INT32 nSize);

    int     m_frameBufferFD;
    UINT16* m_pFrameBuffer;
    int     m_fbWidth;
    int     m_fbHeight;
};

#endif // _LINUX_FB_SURF_H_