Leaked source code of windows server 2003
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// Copyright (c) 1998-1999 Microsoft Corporation
// DMSegObj.h : Declaration of the CSegment
#ifndef __DIRECTMUSICSONGOBJECT_H_
#define __DIRECTMUSICSONGOBJECT_H_
#include "dmusici.h"
#include "dmusicf.h"
#include "dmime.h"
#include "TrkList.h"
#include "dmgraph.h"
#include "dmsegobj.h"
#include "tlist.h"
#include "..\shared\dmusicp.h"
class CVirtualSegment : public AListItem
{
friend class CSong;
friend class ComposingTrack;
public:
CVirtualSegment();
~CVirtualSegment();
CVirtualSegment* GetNext() { return (CVirtualSegment*)AListItem::GetNext();}
CTrack * GetTrackByParam( CTrack * pCTrack,
REFGUID rguidType,DWORD dwGroupBits,DWORD dwIndex);
private:
CTrackList m_TrackList; // List of tracks that this segment uses.
CSegment * m_pSourceSegment; // Segment that is used as basis for this segment.
CSegment * m_pPlaySegment; // Resulting segment that will be played.
CGraph * m_pGraph; // Optional tool graph.
DWORD m_dwFlags; // Various control flags.
DWORD m_dwID; // Unique ID.
DWORD m_dwNextPlayID; // ID of next segment, to chain segments into a song.
DWORD m_dwNextPlayFlags; // DMUS_SEGF flags for playing next segment, when chaining a song.
DMUS_IO_SEGMENT_HEADER m_SegHeader; // Segment header, used to define the segment that it creates, or change the one it references.
MUSIC_TIME m_mtTime; // Start time of this segment.
DWORD m_dwTransitionCount;// How many transitions are defined.
DMUS_IO_TRANSITION_DEF *m_pTransitions; // Array of transitions from other segments.
WCHAR m_wszName[DMUS_MAX_NAME];// Name of generated segment.
};
class CVirtualSegmentList : public AList
{
public:
void Clear();
void AddHead(CVirtualSegment* pVirtualSegment) { AList::AddHead((AListItem*)pVirtualSegment);}
void Insert(CVirtualSegment* pVirtualSegment);
CVirtualSegment* GetHead(){return (CVirtualSegment*)AList::GetHead();}
CVirtualSegment* GetItem(LONG lIndex){return (CVirtualSegment*)AList::GetItem(lIndex);}
CVirtualSegment* RemoveHead() { return (CVirtualSegment *)AList::RemoveHead();};
void Remove(CVirtualSegment* pVirtualSegment){AList::Remove((AListItem*)pVirtualSegment);}
void AddTail(CVirtualSegment* pVirtualSegment){AList::AddTail((AListItem*)pVirtualSegment);}
CVirtualSegment* GetTail(){ return (CVirtualSegment*)AList::GetTail();}
};
class CSongSegment : public AListItem
{
public:
CSongSegment();
~CSongSegment();
CSongSegment* GetNext() { return (CSongSegment*)AListItem::GetNext();}
CSegment * m_pSegment;
DWORD m_dwLoadID;
};
class CSongSegmentList : public AList
{
public:
HRESULT AddSegment(CSegment *pSegment, DWORD dwLoadID);
void Clear();
void AddHead(CSongSegment* pSongSegment) { AList::AddHead((AListItem*)pSongSegment);}
void Insert(CSongSegment* pSongSegment);
CSongSegment* GetHead(){return (CSongSegment*)AList::GetHead();}
CSongSegment* GetItem(LONG lIndex){return (CSongSegment*)AList::GetItem(lIndex);}
CSongSegment* RemoveHead() { return (CSongSegment *)AList::RemoveHead();};
void Remove(CSongSegment* pSongSegment){AList::Remove((AListItem*)pSongSegment);}
void AddTail(CSongSegment* pSongSegment){AList::AddTail((AListItem*)pSongSegment);}
CSongSegment* GetTail(){ return (CSongSegment*)AList::GetTail();}
};
class CSong;
DEFINE_GUID(IID_CSong,0xb06c0c22, 0xd3c7, 0x11d3, 0x9b, 0xd1, 0x44, 0x45, 0x53, 0x54, 0x0, 0x0);
/////////////////////////////////////////////////////////////////////////////
// CSong
class CSong :
public IDirectMusicSong,
public IPersistStream,
public IDirectMusicObject,
public IDirectMusicObjectP
{
public:
CSong();
~CSong();
public:
// IUnknown
STDMETHODIMP QueryInterface(const IID &iid, void **ppv);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
// IDirectMusicSong
STDMETHODIMP Compose( );
STDMETHODIMP GetParam( REFGUID rguidType,
DWORD dwGroupBits,
DWORD dwIndex,
MUSIC_TIME mtTime,
MUSIC_TIME* pmtNext,
void* pParam) ;
STDMETHODIMP GetSegment( WCHAR *wszName,IDirectMusicSegment **ppSegment) ;
STDMETHODIMP EnumSegment( DWORD dwIndex,IDirectMusicSegment **ppSegment) ;
STDMETHODIMP GetAudioPathConfig(IUnknown ** ppAudioPathConfig);
STDMETHODIMP Download(IUnknown *pAudioPath);
STDMETHODIMP Unload(IUnknown *pAudioPath);
// IPersist
STDMETHODIMP GetClassID( CLSID* pClsId );
// IPersistStream
STDMETHODIMP IsDirty();
STDMETHODIMP Load( IStream* pIStream );
STDMETHODIMP Save( IStream* pIStream, BOOL fClearDirty );
STDMETHODIMP GetSizeMax( ULARGE_INTEGER FAR* pcbSize );
// IDirectMusicObject
STDMETHODIMP GetDescriptor(LPDMUS_OBJECTDESC pDesc);
STDMETHODIMP SetDescriptor(LPDMUS_OBJECTDESC pDesc);
STDMETHODIMP ParseDescriptor(LPSTREAM pStream, LPDMUS_OBJECTDESC pDesc);
// IDirectMusicObjectP
STDMETHOD_(void, Zombie)();
public:
HRESULT GetTransitionSegment(CSegment *pSource, CSegment *pDestination,
DMUS_IO_TRANSITION_DEF *pTransDef);
HRESULT GetPlaySegment( DWORD dwIndex,CSegment **ppSegment) ;
private:
void Clear();
HRESULT Instantiate() ;
HRESULT LoadReferencedSegment(CSegment **ppSegment, CRiffParser *pParser);
HRESULT LoadSegmentList(CRiffParser *pParser);
HRESULT LoadGraphList(CRiffParser *pParser);
HRESULT LoadVirtualSegmentList(CRiffParser *pParser);
HRESULT LoadTrackRefList(CRiffParser *pParser, CVirtualSegment *pVirtualSegment);
HRESULT LoadAudioPath(IStream *pStream);
void GetGraph(CGraph **ppGraph,DWORD dwGraphID);
void GetSourceSegment(CSegment **ppSegment,DWORD dwSegmentID);
BOOL GetSegmentTrack(IDirectMusicTrack **ppTrack,DWORD dwSegmentID,DWORD dwGroupBits,DWORD dwIndex,REFGUID guidClassID);
CAudioPathConfig* m_pAudioPathConfig; // Optional audio path loaded from file.
CGraphList m_GraphList; // List of graphs for use by segments in the song.
CSongSegmentList m_SegmentList; // List of source segments.
CSegmentList m_PlayList; // List of composed segments.
CVirtualSegmentList m_VirtualSegmentList; // List of segment references. This is what is used to compose the finished song.
CRITICAL_SECTION m_CriticalSection;
DWORD m_fPartialLoad;
DWORD m_dwFlags;
DWORD m_dwStartSegID; // ID of first segment, in play list, that should play.
long m_cRef;
// IDirectMusicObject variables
DWORD m_dwValidData;
GUID m_guidObject;
FILETIME m_ftDate; /* Last edited date of object. */
DMUS_VERSION m_vVersion; /* Version. */
WCHAR m_wszName[DMUS_MAX_NAME]; /* Name of object. */
WCHAR m_wszCategory[DMUS_MAX_CATEGORY]; /* Category for object */
WCHAR m_wszFileName[DMUS_MAX_FILENAME]; /* File path. */
DWORD m_dwVersion; // Which version of the interfaces is the app requesting?
IUnknown * m_pUnkDispatch; // holds the controlling unknown of the scripting object that implements IDispatch
bool m_fZombie;
};
struct CompositionComponent
{
CVirtualSegment* pVirtualSegment; // composing track came from here
CTrack* pComposingTrack; // used for composition
MUSIC_TIME mtTime;
};
class ComposingTrack
{
public:
ComposingTrack();
~ComposingTrack();
DWORD GetTrackGroup() { return m_dwTrackGroup; }
GUID GetTrackID() { return m_guidClassID; }
DWORD GetPriority() { return m_dwPriority; }
void SetPriority(DWORD dwPriority) { m_dwPriority = dwPriority; }
void SetTrackGroup(DWORD dwTrackGroup) { m_dwTrackGroup = dwTrackGroup; }
void SetTrackID(GUID& rguidClassID) { m_guidClassID = rguidClassID; }
HRESULT AddTrack(CVirtualSegment* pVirtualSegment, CTrack* pTrack);
HRESULT Compose(IDirectMusicSong* pSong);
private:
GUID m_guidClassID; // composing track's class id
DWORD m_dwTrackGroup; // track will be composed from these groups
DWORD m_dwPriority; // Track priority, to order the composition process.
TList<CompositionComponent> m_Components; // list of components making up the master
};
#endif //__DIRECTMUSICSONGOBJECT_H_