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mwinsurf.cpp：源码内容
							/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: mwinsurf.cpp,v 1.6.20.1 2004/07/09 01:59:19 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
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 * the file under the current version of the RealNetworks Community
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 * contents of the file.
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 * portions it created.
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 * ***** END LICENSE BLOCK ***** */
#include "minisite.h"
#include "hxvsurf.h"
#include "winblt.h"
#include "minisurf.h"
#include "mwinsurf.h"
#include "bltobjfact.h"
#define GET_OS_WINDOW() (HWND)(m_pSite->GetWindow()->window)
CMiniWinSurface::CMiniWinSurface(IUnknown* pContext, CMiniBaseSite* pSite)
 :  CMiniBaseSurface(pContext, pSite)
 ,  m_pBlt(NULL)
{
}
CMiniWinSurface::~CMiniWinSurface()
{
    _DestroyDestBuffer(0);
}
HX_RESULT CMiniWinSurface::_CreateDestBuffer(int cidIn,
                                             int nWidth, int nHeight,
                                             int& nCount)
{
    HX_RESULT hr = HXR_FAIL;
    int cidOut;
    int nCountIn = nCount;
    if (!m_pBlt)
    {
        m_pBlt = CreateBltObject();
        if (!m_pBlt)
        {
            return HXR_OUTOFMEMORY;
        }
    }
    hr =  m_pBlt->CreateSurface(cidIn, cidOut,
                                nWidth,nHeight,
                                0, GET_OS_WINDOW(),
                                nCountIn, nCount);
    return hr;
}
  
HX_RESULT CMiniWinSurface::_LockDestBuffer(UCHAR** ppDestPtr,
                                           LONG32* pnDestPitch,
                                           int& cid,
                                           REF(HXxSize) srcSize,
                                           int nIndex)
{   
    return m_pBlt->LockSurface(ppDestPtr, pnDestPitch,
                               cid, srcSize, nIndex);
}
HX_RESULT CMiniWinSurface::_TransferToDestBuffer(UCHAR* pSrcBuffer,
                                                 HXBitmapInfoHeader* pBitmapInfo,
                                                 HXxRect* prSrcRect,
                                                 HXxRect* prDstRect,
                                                 UCHAR* pDstBuffer,
                                                 LONG32 nDstPitch)
{
    HXxSize rSrcSize = {pBitmapInfo->biWidth, pBitmapInfo->biHeight};
    HX_RESULT hr = 
    m_pBlt->FillSurface(m_nSrcCID,
                        pSrcBuffer, &rSrcSize,
                        prSrcRect,                                                                          
                        pDstBuffer, nDstPitch,
                        prDstRect);
    if (FAILED(hr))
    {
    return CMiniBaseSurface::_TransferToDestBuffer(pSrcBuffer,
                                                   pBitmapInfo,
                                                   prSrcRect,
                                                   prDstRect,
                                                   pDstBuffer,
                                                   nDstPitch);
    }
    return hr;
}
HX_RESULT CMiniWinSurface::_UnlockDestBuffer(UCHAR* pSurfPtr, int nIndex)
{
    return m_pBlt->UnlockSurface(pSurfPtr, nIndex);
}
HX_RESULT CMiniWinSurface::_RenderDestBuffer(HXxRect* prSrcRect,
                                             HXxRect* prDstRect,
                                             int nIndex)
{
    return m_pBlt->RenderSurface(&m_dstBufSize,
                                 prSrcRect,
                                 prDstRect,
                                 nIndex);
}
HX_RESULT CMiniWinSurface::_DestroyDestBuffer(int cid, int nCount)
{
    HX_RESULT hr = HXR_OK;
    
    if (m_pBlt)
    {
        m_pBlt->DestroySurface(cid);
        DestroyBltObject(m_pBlt);
        m_pBlt = NULL;
    }
    return hr;
}
int CMiniWinSurface::GetDstCID(int nIndex)
{
    return (m_pBlt ? m_pBlt->GetCID(nIndex) : CID_UNKNOWN);
}
BOOL CMiniWinSurface::ScaleDuringRender(int nCID)
{
    if (m_pBlt)
        return m_pBlt->HasHardwareScaling(nCID);
    else
        return CMiniBaseSurface::ScaleDuringRender(nCID);
}
void CMiniWinSurface::_KeepScreenAlive()
{
#ifdef WINCE
    SystemIdleTimerReset(); 
#endif
}

						