mirror of
https://github.com/reactos/reactos.git
synced 2024-11-10 00:34:39 +00:00
144 lines
2.9 KiB
C
144 lines
2.9 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Configuration of network devices
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* FILE: dll/directx/dsound_new/classfactory.c
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* PURPOSE: IClassFactory implementation
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*
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* PROGRAMMERS: Johannes Anderwald (janderwald@reactos.org)
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*/
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#include "precomp.h"
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typedef struct
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{
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const IClassFactoryVtbl *lpVtbl;
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LONG ref;
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CLSID *rclsid;
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LPFNCREATEINSTANCE lpfnCI;
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const IID * riidInst;
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} IClassFactoryImpl;
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static
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HRESULT
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WINAPI
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IClassFactory_fnQueryInterface(
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LPCLASSFACTORY iface,
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REFIID riid,
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LPVOID *ppvObj)
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{
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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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*ppvObj = NULL;
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/* check requested interface */
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if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IClassFactory))
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{
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*ppvObj = This;
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InterlockedIncrement(&This->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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static
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ULONG
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WINAPI
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IClassFactory_fnAddRef(
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LPCLASSFACTORY iface)
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{
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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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/* increment reference count */
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ULONG refCount = InterlockedIncrement(&This->ref);
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return refCount;
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}
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static
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ULONG
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WINAPI
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IClassFactory_fnRelease(
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LPCLASSFACTORY iface)
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{
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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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ULONG refCount = InterlockedDecrement(&This->ref);
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/* decrement reference count */
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if (!refCount)
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{
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/* free class factory */
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CoTaskMemFree(This);
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return 0;
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}
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return refCount;
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}
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static
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HRESULT
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WINAPI
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IClassFactory_fnCreateInstance(
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LPCLASSFACTORY iface,
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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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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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if (!ppvObject)
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return E_INVALIDARG;
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*ppvObject = NULL;
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if ( This->riidInst==NULL || IsEqualCLSID(riid, This->riidInst) || IsEqualCLSID(riid, &IID_IUnknown) )
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{
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/* instantiate object */
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return This->lpfnCI(pUnkOuter, riid, ppvObject);
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}
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return E_NOINTERFACE;
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}
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static
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HRESULT
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WINAPI IClassFactory_fnLockServer(
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LPCLASSFACTORY iface,
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BOOL fLock)
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{
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//IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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return E_NOTIMPL;
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}
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static const IClassFactoryVtbl dclfvt =
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{
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IClassFactory_fnQueryInterface,
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IClassFactory_fnAddRef,
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IClassFactory_fnRelease,
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IClassFactory_fnCreateInstance,
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IClassFactory_fnLockServer
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};
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IClassFactory *
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IClassFactory_fnConstructor(
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LPFNCREATEINSTANCE lpfnCI,
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PLONG pcRefDll,
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REFIID riidInst)
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{
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IClassFactoryImpl* lpclf;
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lpclf = CoTaskMemAlloc(sizeof(IClassFactoryImpl));
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lpclf->ref = 1;
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lpclf->lpVtbl = &dclfvt;
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lpclf->lpfnCI = lpfnCI;
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if (pcRefDll)
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InterlockedIncrement(pcRefDll);
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lpclf->riidInst = riidInst;
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return (LPCLASSFACTORY)lpclf;
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}
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