mirror of
https://github.com/reactos/reactos.git
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134 lines
2.8 KiB
C++
134 lines
2.8 KiB
C++
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS WDM Streaming ActiveMovie Proxy
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* FILE: dll/directx/ksproxy/qualityforward.cpp
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* PURPOSE: IKsClockForwarder 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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#define IID_IKsQualityForwarder KSCATEGORY_QUALITY
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class CKsQualityForwarder : public IKsQualityForwarder
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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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// IKsObject interface
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HANDLE STDMETHODCALLTYPE KsGetObjectHandle();
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// IKsQualityForwarder
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VOID STDMETHODCALLTYPE KsFlushClient(IN IKsPin *Pin);
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CKsQualityForwarder(HANDLE handle) : m_Ref(0), m_Handle(handle){}
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virtual ~CKsQualityForwarder(){ if (m_Handle) CloseHandle(m_Handle);}
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protected:
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LONG m_Ref;
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HANDLE m_Handle;
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};
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HRESULT
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STDMETHODCALLTYPE
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CKsQualityForwarder::QueryInterface(
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IN REFIID refiid,
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OUT PVOID* Output)
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{
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if (IsEqualGUID(refiid, IID_IUnknown) ||
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IsEqualGUID(refiid, IID_IKsQualityForwarder))
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{
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*Output = PVOID(this);
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reinterpret_cast<IUnknown*>(*Output)->AddRef();
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return NOERROR;
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}
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return E_NOINTERFACE;
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}
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//-------------------------------------------------------------------
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// IKsObject interface
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//
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HANDLE
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STDMETHODCALLTYPE
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CKsQualityForwarder::KsGetObjectHandle()
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{
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return m_Handle;
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}
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//-------------------------------------------------------------------
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// IKsQualityForwarder interface
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//
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VOID
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STDMETHODCALLTYPE
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CKsQualityForwarder::KsFlushClient(
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IN IKsPin *Pin)
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{
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#ifdef KSPROXY_TRACE
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OutputDebugString("UNIMPLEMENTED\n");
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#endif
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}
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HRESULT
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WINAPI
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CKsQualityForwarder_Constructor(
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IUnknown * pUnkOuter,
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REFIID riid,
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LPVOID * ppv)
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{
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HRESULT hr;
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HANDLE handle;
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#ifdef KSPROXY_TRACE
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OutputDebugStringW(L"CKsQualityForwarder_Constructor\n");
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#endif
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// open default clock
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hr = KsOpenDefaultDevice(KSCATEGORY_QUALITY, GENERIC_READ | GENERIC_WRITE, &handle);
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if (hr != NOERROR)
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{
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#ifdef KSPROXY_TRACE
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OutputDebugString("CKsClockForwarder_Constructor failed to open device\n");
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#endif
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return hr;
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}
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CKsQualityForwarder * quality = new CKsQualityForwarder(handle);
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if (!quality)
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{
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// free clock handle
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CloseHandle(handle);
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return E_OUTOFMEMORY;
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}
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if (FAILED(quality->QueryInterface(riid, ppv)))
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{
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/* not supported */
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delete quality;
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return E_NOINTERFACE;
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}
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return NOERROR;
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}
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