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mmacsurf.cpp：源码内容
							/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: mmacsurf.cpp,v 1.2.34.1 2004/07/09 01:59:02 hubbe Exp $
 * 
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 * 
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#include "minisite.h"
#include "macblt.h"
#include "coloracc.h"
#if defined (HELIX_FEATURE_OPTIMIZED_VIDEO)
#include "macyuvblt.h"
#endif //HELIX_FEATURE_OPTIMIZED_VIDEO
#if defined (HELIX_FEATURE_GDI_VIDEO)
#include "macrgbblt.h"
#endif //HELIX_FEATURE_GDI_VIDEO
#include "minisurf.h"
#include "mmacsurf.h"
#define GET_OS_WINDOW() (HWND)(m_pSite->GetWindow()->window)
CMiniMacSurface::CMiniMacSurface(IUnknown* pContext, CMiniBaseSite* pSite)
 :  CMiniBaseSurface(pContext, pSite)
 ,  m_pBlt(NULL)
 ,  m_pRGBBlt(NULL)
 ,  m_pYUVBlt(NULL)
{
}
CMiniMacSurface::~CMiniMacSurface()
{
    _DestroyDestBuffer(0);
}
HX_RESULT CMiniMacSurface::_CreateDestBuffer(int cidIn,
                                             int nWidth, int nHeight,
                                             int& nCount)
{
    HX_RESULT hr = HXR_FAIL;
    int cidOut;
    int nCountIn = nCount;
    // Try to create optimized surfaces and if it fails,
    // try gdi.
    for (int i=0; i<2; i++)
    {
#if defined (HELIX_FEATURE_OPTIMIZED_VIDEO)
        // Only try optimized yuv the first time
        if (i == 0 &&
            !m_pBlt && 
            !m_pYUVBlt)
        {
            m_pYUVBlt = new CMacYUVBlt();
            m_pBlt = m_pYUVBlt;
        }
#endif //HELIX_FEATURE_OPTIMIZED_VIDEO
#if defined (HELIX_FEATURE_GDI_VIDEO)
        if (!m_pBlt && !m_pRGBBlt)
        {
            m_pRGBBlt = new CMacRGBBlt();
            m_pBlt = m_pRGBBlt;
        }
#endif //HELIX_FEATURE_GDI_VIDEO
    
        if (m_pBlt)
        {
            hr =  m_pBlt->CreateSurface(cidIn, cidOut,
                                        nWidth,nHeight,
                                        0, GET_OS_WINDOW(),
                                        nCountIn, nCount);
        }
        if (SUCCEEDED(hr))
        {
            break;
        }
        else
        {
            _DestroyDestBuffer(cidIn);
        }
    }
    return hr;
}
  
HX_RESULT CMiniMacSurface::_LockDestBuffer(UCHAR** ppDestPtr,
                                           LONG32* pnDestPitch,
                                           int& cid,
                                           REF(HXxSize) dstSize,
                                           int nIndex)
{
    return m_pBlt->LockSurface(ppDestPtr, pnDestPitch,
                               cid, dstSize, nIndex);
}
HX_RESULT CMiniMacSurface::_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 CMiniMacSurface::_UnlockDestBuffer(UCHAR* pSurfPtr, int nIndex)
{
    return m_pBlt->UnlockSurface(pSurfPtr, nIndex);
}
HX_RESULT CMiniMacSurface::_RenderDestBuffer(HXxRect* prSrcRect,
                                             HXxRect* prDstRect,
                                             int nIndex)
{
    HX_RESULT hr = m_pBlt->RenderSurface(&m_dstBufSize,
                                         prSrcRect,
                                         prDstRect,
                                         nIndex);
    return hr;
}
HX_RESULT CMiniMacSurface::_DestroyDestBuffer(int cid, int nCount)
{
    HX_RESULT hr = HXR_OK;
    
    if (m_pBlt)
    {
        m_pBlt->DestroySurface(cid);
        HX_DELETE(m_pRGBBlt);
        HX_DELETE(m_pYUVBlt);
        m_pBlt = NULL;
    }
    return hr;
}
int CMiniMacSurface::GetDstCID(int nIndex)
{
    return (m_pBlt ? m_pBlt->GetCID(nIndex) : CID_UNKNOWN);
}

						