128 lines
4.3 KiB
C
128 lines
4.3 KiB
C
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// Copyright (c) 1998-1999 Microsoft Corporation
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// TempoTrk.h : Declaration of the CTempoTrack
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#ifndef __TEMPOTRK_H_
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#define __TEMPOTRK_H_
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#include "dmusici.h"
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#include "dmusicf.h"
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#include "..\dmstyle\tlist.h"
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struct PrivateTempo
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{
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double dblTempo;
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MUSIC_TIME mtTime;
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MUSIC_TIME mtDelta;
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bool fLast;
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PrivateTempo() : dblTempo(120.), mtTime(0), mtDelta(0), fLast(false) {}
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};
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DEFINE_GUID(GUID_PrivateTempoParam, 0xe8dbd832, 0xbcf0, 0x4c8c, 0xa0, 0x75, 0xa3, 0xf1, 0x5e, 0x67, 0xfd, 0x63);
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struct TempoStateData
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{
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IDirectMusicPerformance* pPerformance;
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IDirectMusicSegmentState* pSegState;
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DWORD dwVirtualTrackID;
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MUSIC_TIME mtPrevEnd;
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TListItem<DMUS_IO_TEMPO_ITEM>* pCurrentTempo;
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DWORD dwValidate;
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BOOL fActive;
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TempoStateData()
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{
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mtPrevEnd = 0;
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}
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};
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/////////////////////////////////////////////////////////////////////////////
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// CTempoTrack
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class CTempoTrack :
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public IPersistStream,
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public IDirectMusicTrack8
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{
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public:
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CTempoTrack();
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CTempoTrack(
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const CTempoTrack& rTrack, MUSIC_TIME mtStart, MUSIC_TIME mtEnd);
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~CTempoTrack();
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// member variables
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protected:
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TList<DMUS_IO_TEMPO_ITEM> m_TempoEventList;
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long m_cRef;
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DWORD m_dwValidate; // used to validate state data
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CRITICAL_SECTION m_CrSec;
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BOOL m_fCSInitialized;
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BOOL m_fActive; // if FALSE, disable output and param support
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BOOL m_fStateSetBySetParam; // If TRUE, active flag was set by GUID. Don't override.
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public:
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// IUnknown
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STDMETHODIMP QueryInterface(const IID &iid, void **ppv);
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STDMETHODIMP_(ULONG) AddRef();
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STDMETHODIMP_(ULONG) Release();
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// IDirectMusicTrack methods
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STDMETHODIMP IsParamSupported(REFGUID rguid);
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STDMETHODIMP Init(IDirectMusicSegment *pSegment);
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STDMETHODIMP InitPlay(IDirectMusicSegmentState *pSegmentState,
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IDirectMusicPerformance *pPerformance,
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void **ppStateData,
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DWORD dwTrackID,
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DWORD dwFlags);
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STDMETHODIMP EndPlay(void *pStateData);
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STDMETHODIMP Play(void *pStateData,MUSIC_TIME mtStart,
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MUSIC_TIME mtEnd,MUSIC_TIME mtOffset,
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DWORD dwFlags,IDirectMusicPerformance* pPerf,
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IDirectMusicSegmentState* pSegSt,DWORD dwVirtualID);
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STDMETHODIMP GetParam(REFGUID rguid,MUSIC_TIME mtTime,MUSIC_TIME* pmtNext,void *pData);
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STDMETHODIMP SetParam(REFGUID rguid,MUSIC_TIME mtTime,void *pData);
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STDMETHODIMP AddNotificationType(REFGUID rguidNotification);
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STDMETHODIMP RemoveNotificationType(REFGUID rguidNotification);
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STDMETHODIMP Clone(MUSIC_TIME mtStart,MUSIC_TIME mtEnd,IDirectMusicTrack** ppTrack);
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// IDirectMusicTrack8
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STDMETHODIMP PlayEx(void* pStateData,REFERENCE_TIME rtStart,
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REFERENCE_TIME rtEnd,REFERENCE_TIME rtOffset,
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DWORD dwFlags,IDirectMusicPerformance* pPerf,
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IDirectMusicSegmentState* pSegSt,DWORD dwVirtualID) ;
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STDMETHODIMP GetParamEx(REFGUID rguidType,REFERENCE_TIME rtTime,
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REFERENCE_TIME* prtNext,void* pParam,void * pStateData, DWORD dwFlags) ;
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STDMETHODIMP SetParamEx(REFGUID rguidType,REFERENCE_TIME rtTime,void* pParam, void * pStateData, DWORD dwFlags) ;
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STDMETHODIMP Compose(IUnknown* pContext,
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DWORD dwTrackGroup,
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IDirectMusicTrack** ppResultTrack) ;
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STDMETHODIMP Join(IDirectMusicTrack* pNewTrack,
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MUSIC_TIME mtJoin,
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IUnknown* pContext,
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DWORD dwTrackGroup,
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IDirectMusicTrack** ppResultTrack) ;
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// IPersist functions
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STDMETHODIMP GetClassID( CLSID* pClsId );
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// IPersistStream functions
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STDMETHODIMP IsDirty();
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STDMETHODIMP Load( IStream* pIStream );
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STDMETHODIMP Save( IStream* pIStream, BOOL fClearDirty );
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STDMETHODIMP GetSizeMax( ULARGE_INTEGER FAR* pcbSize );
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protected:
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HRESULT Play(
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void *pStateData,
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MUSIC_TIME mtStart,
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MUSIC_TIME mtEnd,
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MUSIC_TIME mtOffset,
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REFERENCE_TIME rtOffset,
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DWORD dwFlags,
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IDirectMusicPerformance* pPerf,
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IDirectMusicSegmentState* pSegSt,
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DWORD dwVirtualID,
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BOOL fClockTime);
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HRESULT Seek(TempoStateData *pSD,MUSIC_TIME mtTime,BOOL fGetPrevious );
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void Construct(void);
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HRESULT JoinInternal(IDirectMusicTrack* pNewTrack,
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MUSIC_TIME mtJoin,
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DWORD dwTrackGroup);
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};
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#endif //__TEMPOTRK_H_
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