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winsurf2.h：源码内容
							/* ***** 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. 
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 * Technology Compatibility Kit Test Suite(s) Location: 
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 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 
#ifndef _WINSURF2_H_
#define _WINSURF2_H_
#include "winroot.h"
#include "vidsurf2.h"
//#define FILTER_SCAN_LINE
#ifdef FILTER_SCAN_LINE
#define SCAN_LINE_FILTER_DEPTH 8192
#endif // FILTER_SCAN_LINE
class CWinSurface2 : public CWinSurface,
                     public CVideoSurface2
{
public:
    friend class CWinRootSurface;
    CWinSurface2(IUnknown* pContext, CHXBaseSite* pSite);
    virtual ~CWinSurface2();
    // IUnknown methods
    STDMETHOD(QueryInterface)(THIS_ REFIID riid, void** ppvObj);
    STDMETHOD_(ULONG32,AddRef)(THIS);
    STDMETHOD_(ULONG32,Release)(THIS);
    
    // IHXVideoSurface Overrides for VS2->VS1 transitions
    STDMETHOD(Blt)(THIS_
                   UCHAR*               pImageData,
                   HXBitmapInfoHeader* pBitmapInfo,
                   REF(HXxRect)         rDestRect,
                   REF(HXxRect)         rSrcRect);
    STDMETHOD(BeginOptimizedBlt)(THIS_ HXBitmapInfoHeader* pBitmapInfo);
    
    virtual void        _CreateBuffer();
    virtual HX_RESULT   _CreateOverlay(BOOL bOverlay, int cid, int x, int y);
    virtual HX_RESULT 
     ByPassCompositionSurface(UCHAR*               pImageData,
                              HXBitmapInfoHeader* pBitmapInfo,
                              HXxRect&             rDestRect,
                              HXxRect&             rSrcRect,
                              UCHAR*               pSurface,
                              LONG32               nSurfPitch);
    
    virtual void        _ReleaseSurface(CBaseRootSurface* pSurface);
    virtual void        _ReleaseSurface(CWinBaseRootSurface* pSurface);
    virtual void        _ReleaseSurface();
    
    virtual void        ReInitSurfaces();
    virtual BOOL        _IsDisplaySurfaceYuv();
    virtual BOOL        _AllowsOverlayShrinking();
    virtual void        _WaitForQueuedFrames();
    virtual void        _LockBlitter();
    virtual void        _UnlockBlitter();
    virtual void        _FlushSurfaces();
    
    // IHXVideoSurface2 Methods
    STDMETHOD (SetProperties) (THIS_ HXBitmapInfoHeader* bmi,
                                     REF(UINT32) ulNumBuffers,
                                     IHXRenderTimeLine* pTimeLine);
    STDMETHOD (GetVideoMem) (THIS_
                             VideoMemStruct* pVidMem,
                             UINT32 ulFlags);
    STDMETHOD (ColorConvert) (THIS_
                              INT32 cidIn, 
                              HXxSize *pSrcSize,
                              HXxRect *prSrcRect,
                              SourceInputStruct *pInput,
                              INT32 cidOut,
                              UCHAR *pDestBuffer, 
                              HXxSize *pDestSize, 
                              HXxRect *prDestRect, 
                              int nDestPitch);
    STDMETHOD (ReleaseVideoMem) (THIS_ VideoMemStruct* pVidMem);
    STDMETHOD (Present) (THIS_
                         VideoMemStruct* pVidMem,
                         INT32 lTime,
                         UINT32 ulFlags,
                         HXxRect *prDestRect,
                         HXxRect *prSrcRect);
    STDMETHOD_(void, Flush)(THIS);
    STDMETHOD (PresentIfReady) (THIS);
    // CVideoSurface2 Methods
    CHXBaseSite* GetSite() {return m_pSite;}
    BOOL GetColorConverter(int cidIn, int cidOut);
    BOOL GetColorConverter2(int cidIn, int cidOut);
    int  ColorConvert(INT32 cidOut, unsigned char *dest_ptr,
                      int dest_width, int dest_height,
                      int dest_pitch, int dest_x, int dest_y,
                      int dest_dx, int dest_dy,
                      INT32 cidIn, unsigned char *src_ptr,
                      int src_width, int src_height,
                      int src_pitch, int src_x, int src_y,
                      int src_dx, int src_dy);
    int  ColorConvert2(INT32 cidOut, unsigned char *dest_ptr,
                       int dest_width, int dest_height,
                       int dest_pitch, int dest_x, int dest_y,
                       int dest_dx, int dest_dy,
                       INT32 cidIn, unsigned char *pY,
                       unsigned char *pU, unsigned char *pV,
                       int src_width, int src_height,
                       int yPitch, int uPitch, int vPitch,
                       int src_x, int src_y, int src_dx, int src_dy);
    virtual HX_RESULT RelinquishOverlay();
    virtual HX_RESULT AcquireOverlay();
protected:
    /*
     *  Render thread members
     */
    static DWORD    WINAPI ThreadProc(CWinSurface2* pThis);
    DWORD           RenThread();
    HANDLE          m_hRenThread,
                    m_hFrameSem,
                    m_hReinit,
                    m_hAbort,
                    m_hForceRender,
                    m_hSurfaceMutex;
    BOOL            m_bCont,
                    m_bBoostRenderThread,
                    m_bDoAlphaCheck,
                    m_bQueryMonitorFreq,
                    m_bUseVBlankFlip,
                    m_bIngnorePresentIfReady;
    BOOL            m_bScratchSurface,
                    m_bGDISurface;
    INT32           m_nScratchIndex,
                    m_nLastDisplayTime;
    HXxRect         m_rcLast;
    CHXSimpleList*  m_pListOfFrames;
    
    CRITICAL_SECTION m_csDisplay,
                     m_csFallback,
                     m_csList,
                     m_csScale;
    IHXRenderTimeLine* m_pTimeLine;
    // double          m_bBaseTime;
    // It's important to remake all of pnvideo if FILTER_SCAN_LINE is defined!
#ifdef FILTER_SCAN_LINE
    double          m_dMaxRegression;
    double          m_dPhasePoint;
    UINT32          m_ulScanLineFilterDepth;
    double          m_scanLineFilter[SCAN_LINE_FILTER_DEPTH][2];
#endif // FILTER_SCAN_LINE
    BOOL            CanLockSurface(INT32 nIndex, int nBltMode, BOOL bBlock);
    HX_RESULT       DisplayFrame(tFrameElement* pItem);
    HX_RESULT       ForceUpdateOverlay(HXxRect *pDst, HXxRect *pSrc, DWORD dwFlags, BOOL bCheckPos=FALSE);
    HX_RESULT       HandleDisplayModeChange();
    BOOL            HandleDirectDrawLoss(BOOL bLockedTLSMutex);
    HX_RESULT       ReleaseSurface(VideoMemStruct* pVidStruct, BOOL bDiscard=FALSE, BOOL bDeleteAlphaList=TRUE);
    HX_RESULT       WaitForTimeLine(INT32 lTimeStamp);
    HX_RESULT       WaitForQueuedFrames();
    /*
     *  Fall-back surface
     */
    HX_RESULT       CreateFallbackSurface(int nSurfaceCID, HXxSize* pSize, int *pcidList=NULL, int nListSize=0);
    HX_RESULT       DestroyFallbackSurface();
    HX_RESULT       LockFallbackSurface(UCHAR* &pVidMem, INT32 &nPitch, BOOL bBlock=TRUE);
    HX_RESULT       TryNewFallback();
    HX_RESULT       CreateSysMemSurface(int nSurfaceCID, HXxSize* pSize, int nBuffers);
    HX_RESULT       LockSysMemSurface(UCHAR* &pVidMem, INT32 &nPitch, BOOL bBlock=TRUE);
    HX_RESULT       DestroySysMemSurface();
    INT32           GetBitsPerPixel(int nSurfaceID);
    WINDRAWSURFACE  m_fallbackSurface;
    HANDLE          m_hFallbackEmpty;
    HXxSize         m_allocatedFallbackSize;
    int             m_nFallbackSurfaceCID;
    BOOL            m_bFallbackSurfaceCreated;
    /*
     *  System memory surface
     */
    typedef struct tagSysMemSurf
    {
        UCHAR   *pBuffer;
        HANDLE  hEmpty;
    } tSysMemSurf;
    tSysMemSurf     *m_pSysMemSurf;
    HXxSize         m_allocatedSysMemSurfSize;
    INT32           m_nSysMemSurfCount,
                    m_nSysMemSurfPitch,
                    m_nSysMemSurfSize,
                    m_nNextSysMemBuffer;
    int             m_nSysMemSurfID;
    BOOL            m_bUseSysMemSurface;
    /*
     *  GDI surface
     */
    HX_RESULT       CreateGdiSurface(HXxSize* pSize);
    HX_RESULT       LockGdiSurface(UCHAR* &pVidMem, INT32 &nPitch, BOOL bBlock=TRUE);
    HX_RESULT       DestroyGdiSurface();
    WINDRAWSURFACE  m_GDIsurface;
    HXxSize         m_allocatedGdiSize;
    INT32           m_nGdiSurfaceCount,
                    m_nLastGdiSurface,
                    m_nNextGdiSurface;
    int             m_nGdiSurfaceCID;
    BOOL            m_bGdiSurfaceCreated;
    /*
     *  Misc
     */
    UINT32          m_ulFillColoryKeyCount;
    BOOL            m_bFlushing,
                    m_bFrameHasHWAlphaBlend,
                    m_bSurfaceRequiresOverlay,
                    m_bSwitchingingOverlay,
                    m_bUseDDColorControls,
                    m_bWaitingForFlush,
                    m_bWasInVidSurf2;
    double          m_dLastXScale,
                    m_dLastYScale;
    int             m_nOverlayBackBuffersCreated;
    double          m_dLastBlitError;
    int             GetBestBltMode();
    BOOL            IsShrinking();
    void            ResetBufferTimes(INT32 nTime);
    void            SetLastScale(HXxRect *pSrc, HXxRect *pDest);
    BOOL            SetYUVPriorityList(int cidIn);
    void            _WaitForFlush();
    void            CreateAlphaList(VideoMemStruct* pVidStruct);
    void            YuvAlphaBlend(AlphaStruct* pList,
                                  UINT32 ulCount,
                                  UCHAR* pDest,
                                  UINT32 ulFourCC,
                                  INT32  lPitch,
                                  HXxSize* pDestDim);
    HX_RESULT       _ScheduleFrameForDisplay(void* pOsData,
                                             tFrameElement* pItem,
                                             UINT32 nResolution);
    double          FilterScanLine(UINT32 ulScanLine, double dTickAtStreamTime,
                                   WINDRAW* pWindraw, BOOL bResetFilter = FALSE);
};
#endif

						