105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
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#ifndef _BASE_TOOL_
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#define _BASE_TOOL_
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#include "dmusici.h"
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#include "medparam.h"
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extern long g_cComponent;
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class CBaseTool : public IDirectMusicTool8
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{
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public:
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CBaseTool()
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{
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m_cRef = 1; // set to 1 so one call to Release() will free this
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m_pParams = NULL;
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InitializeCriticalSection(&m_CrSec);
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// Note: on pre-Blackcomb OS's, this call can raise an exception; if it
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// ever pops in stress, we can add an exception handler and retry loop.
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InterlockedIncrement(&g_cComponent);
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}
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~CBaseTool()
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{
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if (m_pParams)
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{
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m_pParams->Release();
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}
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DeleteCriticalSection(&m_CrSec);
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InterlockedDecrement(&g_cComponent);
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}
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void CreateParams()
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{
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}
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void CloneParams()
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{
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}
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// IUnknown
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STDMETHODIMP QueryInterface(const IID &iid, void **ppv) PURE;
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STDMETHODIMP_(ULONG) AddRef() PURE;
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STDMETHODIMP_(ULONG) Release() PURE;
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/*// IPersist functions
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STDMETHODIMP GetClassID(CLSID* pClassID) PURE;
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// IPersistStream functions
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STDMETHODIMP IsDirty() PURE;
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STDMETHODIMP Load(IStream* pStream) PURE;
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STDMETHODIMP Save(IStream* pStream, BOOL fClearDirty) PURE;
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STDMETHODIMP GetSizeMax(ULARGE_INTEGER* pcbSize) PURE;*/
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// IDirectMusicTool
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STDMETHODIMP Init(IDirectMusicGraph* pGraph) {return E_NOTIMPL;}
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STDMETHODIMP GetMsgDeliveryType(DWORD* pdwDeliveryType ) {return E_NOTIMPL;}
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STDMETHODIMP GetMediaTypeArraySize(DWORD* pdwNumElements ) {return E_NOTIMPL;}
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STDMETHODIMP GetMediaTypes(DWORD** padwMediaTypes, DWORD dwNumElements) {return E_NOTIMPL;}
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STDMETHODIMP ProcessPMsg(IDirectMusicPerformance* pPerf, DMUS_PMSG* pDMUS_PMSG) PURE;
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STDMETHODIMP Flush(IDirectMusicPerformance* pPerf, DMUS_PMSG* pDMUS_PMSG, REFERENCE_TIME rt) {return E_NOTIMPL;}
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// IDirectMusicTool8
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STDMETHODIMP Clone( IDirectMusicTool ** ppTool) PURE;
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protected:
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long m_cRef; // reference counter
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CRITICAL_SECTION m_CrSec; // to make SetEchoNum() and SetDelay() thread-safe
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IMediaParams * m_pParams; // Helper object that manages IMediaParams.
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};
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class CToolFactory : public IClassFactory
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{
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public:
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// IUnknown
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//
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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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// Interface IClassFactory
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//
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STDMETHODIMP CreateInstance(IUnknown* pUnknownOuter, const IID& iid, void** ppv);
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STDMETHODIMP LockServer(BOOL bLock);
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// Constructor
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//
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CToolFactory(DWORD dwToolType);
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// Destructor
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~CToolFactory();
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private:
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long m_cRef;
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DWORD m_dwToolType;
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};
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// We use one class factory to create all tool classes. We need an identifier for each
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// type so the class factory knows what it is creating.
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#define TOOL_ECHO 1
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#define TOOL_TRANSPOSE 2
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#define TOOL_SWING 3
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#define TOOL_QUANTIZE 4
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#define TOOL_VELOCITY 5
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#define TOOL_DURATION 6
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#define TOOL_TIMESHIFT 7
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#endif // _BASE_TOOL_
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