windows-nt/Source/XPSP1/NT/multimedia/directx/dsound/dsdmo/sverbp.h

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2020-09-26 03:20:57 -05:00
//
//
//
#ifndef _DirectSoundSVerb_p_
#define _DirectSoundSVerb_p_
#include "dsdmobse.h"
#include "dmocom.h"
#include "dsdmo.h"
#include "PropertyHelp.h"
#include "param.h"
class CDirectSoundWavesReverbDMO :
public CDirectSoundDMO,
public CParamsManager,
public ISpecifyPropertyPages,
public IDirectSoundFXWavesReverb,
public CParamsManager::UpdateCallback,
public CComBase
{
public:
CDirectSoundWavesReverbDMO( IUnknown *pUnk, HRESULT *phr );
~CDirectSoundWavesReverbDMO();
DECLARE_IUNKNOWN;
STDMETHODIMP NDQueryInterface(REFIID riid, void **ppv);
static CComBase* WINAPI CreateInstance(IUnknown *pUnk, HRESULT *phr);
// InitOnCreation is called by the class factory to give the object a chance to initialize
// immediately after it is created. This is used to prepare the object's parameter information.
HRESULT InitOnCreation();
// The Init function is an override from the CPCMDMO base class and it provides initialization
// for the effect's actual audio processing. Note that InputType must have been set before this
// occurs in order for this to work.
HRESULT Init();
STDMETHOD(Clone) (THIS_ IMediaObjectInPlace **);
STDMETHOD(SetAllParameters) (THIS_ LPCDSFXWavesReverb p);
STDMETHOD(GetAllParameters) (THIS_ LPDSFXWavesReverb p);
// ISpecifyPropertyPages
STDMETHOD(GetPages)(CAUUID * pPages) { return PropertyHelp::GetPages(CLSID_DirectSoundPropWavesReverb, pPages); }
// IPersist methods
virtual HRESULT STDMETHODCALLTYPE GetClassID( CLSID *pClassID );
// IPersistStream
STDMETHOD(IsDirty)(void)
{ return m_fDirty ? S_OK : S_FALSE; }
STDMETHOD(Load)(IStream *pStm)
{ return PropertyHelp::Load(this, DSFXWavesReverb(), pStm); }
STDMETHOD(Save)(IStream *pStm, BOOL fClearDirty)
{ return PropertyHelp::Save(this, DSFXWavesReverb(), pStm, fClearDirty); }
STDMETHOD(GetSizeMax)(ULARGE_INTEGER *pcbSize)
{ if (!pcbSize) return E_POINTER; pcbSize->QuadPart = sizeof(DSFXWavesReverb); return S_OK; }
// SetParam handling
STDMETHODIMP SetParam(DWORD dwParamIndex,MP_DATA value);
HRESULT SetParamUpdate(DWORD dwParamIndex, MP_DATA value) { return SetParamInternal(dwParamIndex, value, true); }
HRESULT SetParamInternal(DWORD dwParamIndex, MP_DATA value, bool fSkipPasssingToParamManager);
// Overrides
//
HRESULT FBRProcess(DWORD cQuanta, BYTE *pIn, BYTE *pOut);
HRESULT ProcessInPlace(ULONG ulQuanta, LPBYTE pcbData, REFERENCE_TIME rtStart, DWORD dwFlags);
HRESULT Discontinuity();
// Called whenever a parameter has changed to recalculate the effect coefficients based on the cached parameter values.
void UpdateCoefficients();
bool m_fDirty;
private:
bool m_fInitCPCMDMO;
// cached parameter values
MP_DATA m_fGain;
MP_DATA m_fMix;
MP_DATA m_fTime;
MP_DATA m_fRatio;
void (*m_pfnSVerbProcess)(long, short*, short*, void*, long*);
// Internal SVerb state
//
BYTE *m_pbCoeffs;
long *m_plStates;
protected:
HRESULT CheckInputType(const DMO_MEDIA_TYPE *pmt);
};
EXT_STD_CREATE(WavesReverb);
#endif