reactos/dll/directx/ksproxy/interface.cpp

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS WDM Streaming ActiveMovie Proxy
   4  * FILE:            dll/directx/ksproxy/interface.cpp
   5  * PURPOSE:         IKsInterfaceHandler interface
   6  *
   7  * PROGRAMMERS:     Johannes Anderwald (janderwald@reactos.org)
   8  */
   9 #include "precomp.h"
  10
  11 const GUID IID_IKsObject           = {0x423c13a2, 0x2070, 0x11d0, {0x9e, 0xf7, 0x00, 0xaa, 0x00, 0xa2, 0x16, 0xa1}};
  12
  13 class CKsInterfaceHandler : public IKsInterfaceHandler
  14 {
  15 public:
  16     STDMETHODIMP QueryInterface( REFIID InterfaceId, PVOID* Interface);
  17
  18     STDMETHODIMP_(ULONG) AddRef()
  19     {
  20         InterlockedIncrement(&m_Ref);
  21         return m_Ref;
  22     }
  23     STDMETHODIMP_(ULONG) Release()
  24     {
  25         InterlockedDecrement(&m_Ref);
  26
  27         if (!m_Ref)
  28         {
  29             delete this;
  30             return 0;
  31         }
  32         return m_Ref;
  33     }
  34     HRESULT STDMETHODCALLTYPE KsSetPin(IKsPin *KsPin);
  35     HRESULT STDMETHODCALLTYPE KsProcessMediaSamples(IKsDataTypeHandler *KsDataTypeHandler, IMediaSample** SampleList, PLONG SampleCount, KSIOOPERATION IoOperation, PKSSTREAM_SEGMENT *StreamSegment);
  36     HRESULT STDMETHODCALLTYPE KsCompleteIo(PKSSTREAM_SEGMENT StreamSegment);
  37
  38     CKsInterfaceHandler() : m_Ref(0), m_Handle(NULL){};
  39     virtual ~CKsInterfaceHandler(){};
  40
  41 protected:
  42     LONG m_Ref;
  43     HANDLE m_Handle;
  44 };
  45
  46 HRESULT
  47 STDMETHODCALLTYPE
  48 CKsInterfaceHandler::QueryInterface(
  49     IN  REFIID refiid,
  50     OUT PVOID* Output)
  51 {
  52     if (IsEqualGUID(refiid, IID_IUnknown) ||
  53         IsEqualGUID(refiid, IID_IKsInterfaceHandler))
  54     {
  55         *Output = PVOID(this);
  56         reinterpret_cast<IUnknown*>(*Output)->AddRef();
  57         return NOERROR;
  58     }
  59     return E_NOINTERFACE;
  60 }
  61
  62 HRESULT
  63 STDMETHODCALLTYPE
  64 CKsInterfaceHandler::KsSetPin(
  65     IKsPin *KsPin)
  66 {
  67     HRESULT hr;
  68     IKsObject * KsObject;
  69
  70     // check if IKsObject is supported
  71     hr = KsPin->QueryInterface(IID_IKsObject, (void**)&KsObject);
  72
  73     if (SUCCEEDED(hr))
  74     {
  75         // get pin handle
  76         m_Handle = KsObject->KsGetObjectHandle();
  77
  78         // release IKsObject interface
  79         KsObject->Release();
  80
  81         if (!m_Handle)
  82         {
  83             // expected a file handle
  84             return E_UNEXPECTED;
  85         }
  86     }
  87
  88     // done
  89     return hr;
  90 }
  91
  92 HRESULT
  93 STDMETHODCALLTYPE
  94 CKsInterfaceHandler::KsProcessMediaSamples(
  95      IKsDataTypeHandler *KsDataTypeHandler,
  96      IMediaSample** SampleList,
  97      PLONG SampleCount,
  98      KSIOOPERATION IoOperation,
  99      PKSSTREAM_SEGMENT *StreamSegment)
 100 {
 101     OutputDebugString("UNIMPLEMENTED\n");
 102     return E_NOTIMPL;
 103 }
 104
 105 HRESULT
 106 STDMETHODCALLTYPE
 107 CKsInterfaceHandler::KsCompleteIo(
 108     PKSSTREAM_SEGMENT StreamSegment)
 109 {
 110     OutputDebugString("UNIMPLEMENTED\n");
 111     return E_NOTIMPL;
 112 }
 113
 114 HRESULT
 115 WINAPI
 116 CKsInterfaceHandler_Constructor(
 117     IUnknown * pUnkOuter,
 118     REFIID riid,
 119     LPVOID * ppv)
 120 {
 121     OutputDebugStringW(L"CKsInterfaceHandler_Constructor\n");
 122
 123     CKsInterfaceHandler * handler = new CKsInterfaceHandler();
 124
 125     if (!handler)
 126         return E_OUTOFMEMORY;
 127
 128     if (FAILED(handler->QueryInterface(riid, ppv)))
 129     {
 130         /* not supported */
 131         delete handler;
 132         return E_NOINTERFACE;
 133     }
 134
 135     return NOERROR;
 136 }