104 lines
4.8 KiB
C
104 lines
4.8 KiB
C
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#ifndef __TOOLPARAM_H__
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#define __TOOLPARAM_H__
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#include "medparam.h"
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#include "alist.h"
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typedef struct _ParamInfo
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{
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DWORD dwIndex; // Which parameter.
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MP_PARAMINFO MParamInfo; // Standard MediaParams structure.
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WCHAR * pwchText; // Array of text names for enumerated types.
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} ParamInfo;
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class CCurveItem : public AListItem
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{
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public:
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CCurveItem* GetNext() { return (CCurveItem*)AListItem::GetNext();}
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MP_ENVELOPE_SEGMENT m_Envelope; // Envelope segment.
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};
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class CCurveList : public AList
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{
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public:
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// void Clear();
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void AddHead(CCurveItem* pCurveItem) { AList::AddHead((AListItem*)pCurveItem);}
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// void Insert(CCurveItem* pCurveItem);
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CCurveItem* GetHead(){return (CCurveItem*)AList::GetHead();}
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// CCurveItem* GetItem(LONG lIndex){return (CCurveItem*)AList::GetItem(lIndex);}
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CCurveItem* RemoveHead(){ return (CCurveItem*)AList::RemoveHead();}
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// void Remove(CCurveItem* pCurveItem){AList::Remove((AListItem*)pCurveItem);}
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// void AddTail(CCurveItem* pCurveItem){AList::AddTail((AListItem*)pCurveItem);}
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// CCurveItem* GetTail(){ return (CCurveItem*)AList::GetTail();}
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~CCurveList();
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};
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#define MAX_REF_TIME 0x7FFFFFFFFFFFFFFF
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#define MP_CAPS_ALL MP_CAPS_CURVE_JUMP | MP_CAPS_CURVE_LINEAR | MP_CAPS_CURVE_SQUARE | MP_CAPS_CURVE_INVSQUARE | MP_CAPS_CURVE_SINE
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class CParamsManager : public IMediaParams, public IMediaParamInfo
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{
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public:
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CParamsManager();
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~CParamsManager();
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// IUnknown
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STDMETHOD(QueryInterface)(REFIID, LPVOID FAR *) PURE;
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STDMETHOD_(ULONG, AddRef)() PURE;
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STDMETHOD_(ULONG, Release)() PURE;
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// IMediaParams
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STDMETHODIMP GetParam(DWORD dwParamIndex, MP_DATA *pValue);
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STDMETHODIMP SetParam(DWORD dwParamIndex,MP_DATA value);
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STDMETHODIMP AddEnvelope(DWORD dwParamIndex,DWORD cPoints,MP_ENVELOPE_SEGMENT *ppEnvelope);
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STDMETHODIMP FlushEnvelope( DWORD dwParamIndex,REFERENCE_TIME refTimeStart,REFERENCE_TIME refTimeEnd);
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STDMETHODIMP SetTimeFormat( GUID guidTimeFormat,MP_TIMEDATA mpTimeData);
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// IMediaParamInfo
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STDMETHODIMP GetParamCount(DWORD *pdwParams);
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STDMETHODIMP GetParamInfo(DWORD dwParamIndex,MP_PARAMINFO *pInfo);
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STDMETHODIMP GetParamText(DWORD dwParamIndex,WCHAR **ppwchText);
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STDMETHODIMP GetNumTimeFormats(DWORD *pdwNumTimeFormats);
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STDMETHODIMP GetSupportedTimeFormat(DWORD dwFormatIndex,GUID *pguidTimeFormat);
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STDMETHODIMP GetCurrentTimeFormat( GUID *pguidTimeFormat,MP_TIMEDATA *pTimeData);
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// other (non-COM) functions
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HRESULT InitParams(DWORD cTimeFormats, const GUID *pguidTimeFormats, DWORD dwFormatIndex, MP_TIMEDATA mptdTimeData, DWORD cParams, ParamInfo *pParamInfos);
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HRESULT GetParamFloat(DWORD dwParamIndex,REFERENCE_TIME rtTime,float *pval); // returns S_FALSE if rtTime is after the end time of the last curve
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HRESULT GetParamInt (DWORD dwParamIndex,REFERENCE_TIME rt,long *pval); // returns S_FALSE if rtTime is after the end time of the last curve
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HRESULT CopyParamsFromSource(CParamsManager * pSource);
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// parameter control curve handling
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class UpdateCallback
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{
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public:
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// Define this in derived classes if you are going to use UpdateActiveParams.
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// Called by CParamsManager inside UpdateActiveParams to update the effect's internal state variables.
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// SetParamUpdate should be the same as SetParam, except that DMO defer the call to the base class
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// (CParamsManager::SetParam) in SetParam but should not do so in SetParamUpdate.
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virtual HRESULT SetParamUpdate(DWORD dwParamIndex, MP_DATA value) = 0;
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};
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// function that calls SetParam to adjust the value of all parameters that may have changed to their
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// new values at time rtTime
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void UpdateActiveParams(REFERENCE_TIME rtTime, UpdateCallback &rThis); // rThis should be the derived class (*this)
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DWORD GetActiveParamBits() { return m_dwActiveBits; }
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protected:
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// data
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CRITICAL_SECTION m_ParamsCriticalSection;
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BOOL m_fDirty; // Has data changed since last file load or save?
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DWORD m_cTimeFormats; // Number of supported time formats.
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GUID *m_pguidTimeFormats; // Array of supported time formats.
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GUID m_guidCurrentTimeFormat; // The time format we're set to.
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MP_TIMEDATA m_mptdCurrentTimeData; // The unit of measure for the current time format.
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DWORD m_cParams; // Number of parameters.
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ParamInfo *m_pParamInfos; // Array of ParamInfo structures, one for each parameter.
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CCurveList *m_pCurveLists; // Array of Curve lists, one for each parameter.
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DWORD m_dwActiveBits; // Tracks the params that currently have curves active.
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};
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#endif // __TOOLPARAM_H__
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