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107 lines
2.3 KiB
C++
107 lines
2.3 KiB
C++
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS BDA Proxy
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* FILE: dll/directx/msvidctl/classfactory.cpp
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* PURPOSE: ClassFactory interface
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*
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* PROGRAMMERS: Johannes Anderwald (johannes.anderwald@reactos.org)
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*/
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#include "precomp.h"
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const GUID IID_IUnknown = {0x00000000, 0x0000, 0x0000, {0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46}};
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const GUID IID_IClassFactory = {0x00000001, 0x0000, 0x0000, {0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46}};
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class CClassFactory : public IClassFactory
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{
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public:
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STDMETHODIMP QueryInterface( REFIID InterfaceId, PVOID* Interface);
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STDMETHODIMP_(ULONG) AddRef()
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{
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InterlockedIncrement(&m_Ref);
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return m_Ref;
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}
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STDMETHODIMP_(ULONG) Release()
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{
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InterlockedDecrement(&m_Ref);
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if (!m_Ref)
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{
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delete this;
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return 0;
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}
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return m_Ref;
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}
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HRESULT WINAPI CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, LPVOID *ppvObject);
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HRESULT WINAPI LockServer(BOOL fLock);
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CClassFactory(LPFNCREATEINSTANCE lpfnCI, PLONG pcRefDll, IID *riidInst) : m_Ref(1), m_lpfnCI(lpfnCI), m_IID(riidInst)
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{};
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virtual ~CClassFactory(){};
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protected:
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LONG m_Ref;
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LPFNCREATEINSTANCE m_lpfnCI;
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IID * m_IID;
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};
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HRESULT
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WINAPI
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CClassFactory::QueryInterface(
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REFIID riid,
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LPVOID *ppvObj)
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{
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*ppvObj = NULL;
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if(IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IClassFactory))
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{
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*ppvObj = PVOID(this);
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InterlockedIncrement(&m_Ref);
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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HRESULT
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WINAPI
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CClassFactory::CreateInstance(
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LPUNKNOWN pUnkOuter,
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REFIID riid,
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LPVOID *ppvObject)
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{
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*ppvObject = NULL;
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if ( m_IID == NULL || IsEqualCLSID(riid, *m_IID) || IsEqualCLSID(riid, IID_IUnknown))
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{
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return m_lpfnCI(pUnkOuter, riid, ppvObject);
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}
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return E_NOINTERFACE;
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}
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HRESULT
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WINAPI
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CClassFactory::LockServer(
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BOOL fLock)
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{
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return E_NOTIMPL;
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}
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IClassFactory *
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CClassFactory_fnConstructor(
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LPFNCREATEINSTANCE lpfnCI,
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PLONG pcRefDll,
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IID * riidInst)
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{
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CClassFactory* factory = new CClassFactory(lpfnCI, pcRefDll, riidInst);
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if (!factory)
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return NULL;
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if (pcRefDll)
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InterlockedIncrement(pcRefDll);
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return (LPCLASSFACTORY)factory;
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}
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