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140 lines
4.4 KiB
140 lines
4.4 KiB
// Copyright (c) 1997 - 1998 Microsoft Corporation. All Rights Reserved.
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/////////////////////////////////////////////////////////////////////////////
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// CDDSample
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class ATL_NO_VTABLE CDDSample :
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public CSample,
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public IDirectDrawStreamSample
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{
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public:
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CDDSample();
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HRESULT InitSample(CStream *pStream, IDirectDrawSurface *pSurface, const RECT *pRect, bool bIsProgressiveRender, bool bIsInternalSample,
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bool bTemp);
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//
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// IStreamSample
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//
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STDMETHODIMP GetMediaStream(
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/* [in] */ IMediaStream **ppMediaStream)
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{
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return CSample::GetMediaStream(ppMediaStream);
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}
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STDMETHODIMP GetSampleTimes(
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/* [optional][out] */ STREAM_TIME *pStartTime,
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/* [optional][out] */ STREAM_TIME *pEndTime,
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/* [optional][out] */ STREAM_TIME *pCurrentTime)
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{
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return CSample::GetSampleTimes(
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pStartTime,
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pEndTime,
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pCurrentTime
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);
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}
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STDMETHODIMP SetSampleTimes(
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/* [optional][in] */ const STREAM_TIME *pStartTime,
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/* [optional][in] */ const STREAM_TIME *pEndTime)
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{
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return CSample::SetSampleTimes(pStartTime, pEndTime);
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}
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STDMETHODIMP Update(
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/* [in] */ DWORD dwFlags,
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/* [optional][in] */ HANDLE hEvent,
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/* [optional][in] */ PAPCFUNC pfnAPC,
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/* [optional][in] */ DWORD_PTR dwAPCData)
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{
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return CSample::Update(dwFlags, hEvent, pfnAPC, dwAPCData);
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}
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STDMETHODIMP CompletionStatus(
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/* [in] */ DWORD dwFlags,
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/* [optional][in] */ DWORD dwMilliseconds)
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{
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return CSample::CompletionStatus(dwFlags, dwMilliseconds);
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}
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//
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// IDirectDrawStreamSample
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//
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STDMETHODIMP GetSurface(IDirectDrawSurface **ppDirectDrawSurface, RECT * pRect);
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STDMETHODIMP SetRect(const RECT * pRect);
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//
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// Overridden virtual function for CSample
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//
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void FinalMediaSampleRelease(void);
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//
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// Methods forwarded from MediaSample object.
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//
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HRESULT MSCallback_GetPointer(BYTE ** ppBuffer);
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LONG MSCallback_GetSize(void);
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LONG MSCallback_GetActualDataLength(void);
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HRESULT MSCallback_SetActualDataLength(LONG lActual);
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//
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// Internal methods
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//
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long LockAndPrepareMediaSample(long lLastPinPitch);
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void ReleaseMediaSampleLock(void);
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HRESULT CopyFrom(CDDSample *pSrcSample);
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HRESULT CopyFrom(IMediaSample *pSrcMediaSample, const AM_MEDIA_TYPE *pmt);
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HRESULT LockMediaSamplePointer();
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BEGIN_COM_MAP(CDDSample)
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COM_INTERFACE_ENTRY(IDirectDrawStreamSample)
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COM_INTERFACE_ENTRY_CHAIN(CSample)
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END_COM_MAP()
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public:
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CComPtr<IDirectDrawSurface> m_pSurface;
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RECT m_Rect;
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long m_lLastSurfacePitch;
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bool m_bProgressiveRender;
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bool m_bFormatChanged;
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LONG m_lImageSize;
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void * m_pvLockedSurfacePtr;
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};
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class CDDInternalSample : public CDDSample
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{
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public:
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CDDInternalSample();
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~CDDInternalSample();
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HRESULT InternalInit(void);
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HRESULT SetCompletionStatus(HRESULT hrStatus);
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HRESULT Die(void);
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HRESULT JoinToBuddy(CDDSample *pBuddy);
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BOOL HasBuddy() const
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{
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return m_pBuddySample != NULL;
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}
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private:
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CDDSample *m_pBuddySample;
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long m_lWaiting;
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HANDLE m_hWaitFreeSem;
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bool m_bDead;
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};
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class CDDMediaSample : public CMediaSample, public IDirectDrawMediaSample
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{
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public:
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CDDMediaSample(CSample *pSample) :
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CMediaSample(pSample) {};
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STDMETHODIMP QueryInterface(REFIID riid, void ** ppv);
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STDMETHODIMP_(ULONG) AddRef() {return CMediaSample::AddRef();}
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STDMETHODIMP_(ULONG) Release() {return CMediaSample::Release();}
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STDMETHODIMP GetSurfaceAndReleaseLock(IDirectDrawSurface **ppDirectDrawSurface, RECT * pRect);
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STDMETHODIMP LockMediaSamplePointer();
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};
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