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179 lines
5.9 KiB
179 lines
5.9 KiB
// Copyright (c) 1998-1999 Microsoft Corporation
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// SeqTrack.h : Declaration of the CSeqTrack
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#ifndef __SEQTRACK_H_
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#define __SEQTRACK_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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#include "PChMap.h"
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struct SeqStateData
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{
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DWORD dwPChannelsUsed; // number of PChannels
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// the following two arrays are allocated to the size of dwNumPChannels, which
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// must match the SeqTrack's m_dwPChannelsUsed. The arrays match one-for-one with
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// the parts inside the SeqTrack.
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TListItem<DMUS_IO_SEQ_ITEM>** apCurrentSeq; // array of size dwNumPChannels
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TListItem<DMUS_IO_CURVE_ITEM>** apCurrentCurve; // array of size dwNumPChannels
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DWORD dwValidate;
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MUSIC_TIME mtCurTimeSig; // time the current timesig started
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MUSIC_TIME mtNextTimeSig; // time for the next timesig
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DWORD dwMeasure; // starting measure # of the timesig
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DWORD dwlnBeat; // length of a beat
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DWORD dwlnMeasure; // length of a measure
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DWORD dwlnGrid; // length of a grid
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DWORD dwGroupBits; // the group bits of this track
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SeqStateData()
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{
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mtCurTimeSig = 0;
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mtNextTimeSig = 0;
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dwMeasure = 0;
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dwlnBeat = DMUS_PPQ;
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dwlnMeasure = DMUS_PPQ * 4;
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dwlnGrid = DMUS_PPQ / 4;
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apCurrentSeq = NULL;
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apCurrentCurve = NULL;
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}
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~SeqStateData()
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{
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if( apCurrentSeq )
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{
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delete [] apCurrentSeq;
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}
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if( apCurrentCurve )
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{
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delete [] apCurrentCurve;
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}
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}
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};
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// SEQ_PART represents all of the DMUS_PMSG's inside the SeqTrack for one PChannel
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struct SEQ_PART
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{
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SEQ_PART* pNext;
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DWORD dwPChannel;
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TList<DMUS_IO_SEQ_ITEM> seqList;
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TList<DMUS_IO_CURVE_ITEM> curveList;
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SEQ_PART() : pNext(NULL) {}; // always initialize pNext to NULL
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};
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/////////////////////////////////////////////////////////////////////////////
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// CSeqTrack
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class CSeqTrack :
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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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CSeqTrack();
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CSeqTrack(
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const CSeqTrack& rTrack, MUSIC_TIME mtStart, MUSIC_TIME mtEnd);
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~CSeqTrack();
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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 STDMETHODCALLTYPE Seek(
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IDirectMusicSegmentState*,
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IDirectMusicPerformance*,
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DWORD dwVirtualID,
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SeqStateData*,
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MUSIC_TIME mtTime,
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BOOL fGetPrevious,
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MUSIC_TIME mtOffset,
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REFERENCE_TIME rtOffset,
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BOOL fClockTime);
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void SendSeekItem(
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IDirectMusicPerformance*,
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IDirectMusicGraph*,
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IDirectMusicSegmentState*,
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SeqStateData* pSD,
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DWORD dwVirtualID,
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MUSIC_TIME mtTime,
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MUSIC_TIME mtOffset,
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REFERENCE_TIME rtOffset,
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TListItem<DMUS_IO_SEQ_ITEM>*,
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TListItem<DMUS_IO_CURVE_ITEM>*,
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BOOL fClockTime);
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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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void Construct(void);
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HRESULT LoadCurve( IStream* pIStream, long lSize );
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HRESULT LoadSeq( IStream* pIStream, long lSize );
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void UpdateTimeSig(IDirectMusicSegmentState*, SeqStateData* pSD, MUSIC_TIME mt);
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TListItem<SEQ_PART>* FindPart( DWORD dwPChannel );
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void DeleteSeqPartList(void);
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void SetUpStateCurrentPointers(SeqStateData* pStateData);
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// member variables
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private:
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TList<SEQ_PART> m_SeqPartList;
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TListItem<SEQ_PART>* m_pSeqPartCache; // used to time-optimize FindPart()
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DWORD m_dwPChannelsUsed;
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DWORD* m_aPChannels;
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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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CPChMap m_PChMap;
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};
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#endif //__SEQTRACK_H_
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