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_IKsInterfaceHandler = {0xD3ABC7E0, 0x9A61, 0x11D0, {0xA4, 0x0D, 0x00, 0xA0, 0xC9, 0x22, 0x31, 0x96}};
  12 const GUID IID_IKsObject           = {0x423c13a2, 0x2070, 0x11d0, {0x9e, 0xf7, 0x00, 0xaa, 0x00, 0xa2, 0x16, 0xa1}};
  13
  14 class CKsInterfaceHandler : public IKsInterfaceHandler
  15 {
  16 public:
  17     STDMETHODIMP QueryInterface( REFIID InterfaceId, PVOID* Interface);
  18
  19     STDMETHODIMP_(ULONG) AddRef()
  20     {
  21         InterlockedIncrement(&m_Ref);
  22         return m_Ref;
  23     }
  24     STDMETHODIMP_(ULONG) Release()
  25     {
  26         InterlockedDecrement(&m_Ref);
  27
  28         if (!m_Ref)
  29         {
  30             delete this;
  31             return 0;
  32         }
  33         return m_Ref;
  34     }
  35     HRESULT STDMETHODCALLTYPE KsSetPin(IKsPin *KsPin);
  36     HRESULT STDMETHODCALLTYPE KsProcessMediaSamples(IKsDataTypeHandler *KsDataTypeHandler, IMediaSample** SampleList, PLONG SampleCount, KSIOOPERATION IoOperation, PKSSTREAM_SEGMENT *StreamSegment);
  37     HRESULT STDMETHODCALLTYPE KsCompleteIo(PKSSTREAM_SEGMENT StreamSegment);
  38
  39     CKsInterfaceHandler() : m_Ref(0), m_Handle(NULL){};
  40     virtual ~CKsInterfaceHandler(){};
  41
  42 protected:
  43     LONG m_Ref;
  44     HANDLE m_Handle;
  45 };
  46
  47 HRESULT
  48 STDMETHODCALLTYPE
  49 CKsInterfaceHandler::QueryInterface(
  50     IN  REFIID refiid,
  51     OUT PVOID* Output)
  52 {
  53     if (IsEqualGUID(refiid, IID_IUnknown) ||
  54         IsEqualGUID(refiid, IID_IKsInterfaceHandler))
  55     {
  56         *Output = PVOID(this);
  57         reinterpret_cast<IUnknown*>(*Output)->AddRef();
  58         return NOERROR;
  59     }
  60     return E_NOINTERFACE;
  61 }
  62
  63 HRESULT
  64 STDMETHODCALLTYPE
  65 CKsInterfaceHandler::KsSetPin(
  66     IKsPin *KsPin)
  67 {
  68     HRESULT hr;
  69     IKsObject * KsObject;
  70
  71     // check if IKsObject is supported
  72     hr = KsPin->QueryInterface(IID_IKsObject, (void**)&KsObject);
  73
  74     if (SUCCEEDED(hr))
  75     {
  76         // get pin handle
  77         m_Handle = KsObject->KsGetObjectHandle();
  78
  79         // release IKsObject interface
  80         KsObject->Release();
  81
  82         if (!m_Handle)
  83         {
  84             // expected a file handle
  85             return E_UNEXPECTED;
  86         }
  87     }
  88
  89     // done
  90     return hr;
  91 }
  92
  93 HRESULT
  94 STDMETHODCALLTYPE
  95 CKsInterfaceHandler::KsProcessMediaSamples(
  96      IKsDataTypeHandler *KsDataTypeHandler,
  97      IMediaSample** SampleList,
  98      PLONG SampleCount,
  99      KSIOOPERATION IoOperation,
 100      PKSSTREAM_SEGMENT *StreamSegment)
 101 {
 102     OutputDebugString("UNIMPLEMENTED\n");
 103     return E_NOTIMPL;
 104 }
 105
 106 HRESULT
 107 STDMETHODCALLTYPE
 108 CKsInterfaceHandler::KsCompleteIo(
 109     PKSSTREAM_SEGMENT StreamSegment)
 110 {
 111     OutputDebugString("UNIMPLEMENTED\n");
 112     return E_NOTIMPL;
 113 }
 114
 115 HRESULT
 116 WINAPI
 117 CKsInterfaceHandler_Constructor(
 118     IUnknown * pUnkOuter,
 119     REFIID riid,
 120     LPVOID * ppv)
 121 {
 122     CKsInterfaceHandler * handler = new CKsInterfaceHandler();
 123
 124     if (!handler)
 125         return E_OUTOFMEMORY;
 126
 127     if (FAILED(handler->QueryInterface(riid, ppv)))
 128     {
 129         /* not supported */
 130         delete handler;
 131         return E_NOINTERFACE;
 132     }
 133
 134     return NOERROR;
 135 }