mirror of
https://github.com/reactos/reactos.git
synced 2024-08-28 14:18:41 +00:00
151 lines
3.6 KiB
C++
151 lines
3.6 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/bdaplgin/controlnode.cpp
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* PURPOSE: ControlNode 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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#ifndef _MSC_VER
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const GUID IID_IKsPropertySet = {0x31efac30, 0x515c, 0x11d0, {0xa9,0xaa, 0x00,0xaa,0x00,0x61,0xbe,0x93}};
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#endif
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class CControlNode : public IUnknown
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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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CControlNode(IKsPropertySet * pProperty, ULONG NodeType, ULONG PinId) : m_Ref(0), m_pKsProperty(pProperty), m_NodeType(NodeType), m_PinId(PinId){};
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virtual ~CControlNode(){};
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protected:
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LONG m_Ref;
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IKsPropertySet * m_pKsProperty;
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ULONG m_NodeType;
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ULONG m_PinId;
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};
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HRESULT
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STDMETHODCALLTYPE
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CControlNode::QueryInterface(
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IN REFIID refiid,
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OUT PVOID* Output)
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{
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*Output = NULL;
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if (IsEqualGUID(refiid, IID_IUnknown))
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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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else if(IsEqualGUID(refiid, IID_IBDA_FrequencyFilter))
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{
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return CBDAFrequencyFilter_fnConstructor(m_pKsProperty, m_NodeType, refiid, Output);
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}
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else if(IsEqualGUID(refiid, IID_IBDA_SignalStatistics))
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{
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return CBDASignalStatistics_fnConstructor(m_pKsProperty, m_NodeType, refiid, Output);
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}
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else if(IsEqualGUID(refiid, IID_IBDA_LNBInfo))
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{
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return CBDALNBInfo_fnConstructor(m_pKsProperty, m_NodeType, refiid, Output);
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}
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else if(IsEqualGUID(refiid, IID_IBDA_DigitalDemodulator))
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{
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return CBDADigitalDemodulator_fnConstructor(m_pKsProperty, m_NodeType, refiid, Output);
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}
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#ifdef BDAPLGIN_TRACE
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WCHAR Buffer[MAX_PATH];
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LPOLESTR lpstr;
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StringFromCLSID(refiid, &lpstr);
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swprintf(Buffer, L"CControlNode::QueryInterface: NoInterface for %s", lpstr);
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OutputDebugStringW(Buffer);
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CoTaskMemFree(lpstr);
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#endif
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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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CControlNode_fnConstructor(
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IBaseFilter * pFilter,
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ULONG NodeType,
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ULONG PinId,
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REFIID riid,
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LPVOID * ppv)
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{
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WCHAR Buffer[100];
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HRESULT hr;
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IPin * pPin = NULL;
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IKsPropertySet * pProperty;
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// store pin id
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swprintf(Buffer, L"%u", PinId);
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// try find target pin
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hr = pFilter->FindPin(Buffer, &pPin);
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if (FAILED(hr))
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{
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#ifdef BDAPLGIN_TRACE
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swprintf(Buffer, L"CControlNode_fnConstructor failed find pin %lu with %lx\n", PinId, hr);
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OutputDebugStringW(Buffer);
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#endif
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return hr;
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}
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// query for IKsPropertySet interface
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hr = pPin->QueryInterface(IID_IKsPropertySet, (void**)&pProperty);
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if (FAILED(hr))
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return hr;
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#ifdef BDAPLGIN_TRACE
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swprintf(Buffer, L"CControlNode_fnConstructor get IID_IKsObject status %lx\n", hr);
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OutputDebugStringW(Buffer);
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#endif
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// release IPin interface
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pPin->Release();
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// construct device control
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CControlNode * handler = new CControlNode(pProperty, NodeType, PinId);
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#ifdef BDAPLGIN_TRACE
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OutputDebugStringW(L"CControlNode_fnConstructor\n");
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#endif
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if (!handler)
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return E_OUTOFMEMORY;
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if (FAILED(handler->QueryInterface(riid, ppv)))
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{
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/* not supported */
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delete handler;
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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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