dlls/amstream/mediastream.c

   1 /*
   2  * Implementation of IMediaStream Interface
   3  *
   4  * Copyright 2005 Christian Costa
   5  *
   6  * This file contains the (internal) driver registration functions,
   7  * driver enumeration APIs and DirectDraw creation functions.
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23
  24 #include "config.h"
  25 #include "wine/debug.h"
  26
  27 #define COBJMACROS
  28
  29 #include "winbase.h"
  30 #include "wingdi.h"
  31
  32 #include "amstream_private.h"
  33 #include "amstream.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(amstream);
  36
  37 typedef struct {
  38     IMediaStream lpVtbl;
  39     LONG ref;
  40     IMultiMediaStream* Parent;
  41     MSPID PurposeId;
  42     STREAM_TYPE StreamType;
  43 } IMediaStreamImpl;
  44
  45 static struct IMediaStreamVtbl MediaStream_Vtbl;
  46
  47 HRESULT MediaStream_create(IMultiMediaStream* Parent, const MSPID* pPurposeId, STREAM_TYPE StreamType, IMediaStream** ppMediaStream)
  48 {
  49     IMediaStreamImpl* object;
  50
  51     TRACE("(%p,%p,%p)\n", Parent, pPurposeId, ppMediaStream);
  52
  53     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IMediaStreamImpl));
  54
  55     object->lpVtbl.lpVtbl = &MediaStream_Vtbl;
  56     object->ref = 1;
  57
  58     object->Parent = Parent;
  59     object->PurposeId = *pPurposeId;
  60     object->StreamType = StreamType;
  61
  62     *ppMediaStream = (IMediaStream*)object;
  63
  64     return S_OK;
  65 }
  66
  67 /*** IUnknown methods ***/
  68 static HRESULT WINAPI IMediaStreamImpl_QueryInterface(IMediaStream* iface, REFIID riid, void** ppvObject)
  69 {
  70     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
  71
  72     TRACE("(%p/%p)->(%s,%p)\n", iface, This, debugstr_guid(riid), ppvObject);
  73
  74     if (IsEqualGUID(riid, &IID_IUnknown) ||
  75         IsEqualGUID(riid, &IID_IAMMultiMediaStream))
  76     {
  77       IClassFactory_AddRef(iface);
  78       *ppvObject = This;
  79       return S_OK;
  80     }
  81
  82     ERR("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppvObject);
  83     return E_NOINTERFACE;
  84 }
  85
  86 static ULONG WINAPI IMediaStreamImpl_AddRef(IMediaStream* iface)
  87 {
  88     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
  89
  90     TRACE("(%p/%p)\n", iface, This);
  91
  92     return InterlockedIncrement(&This->ref);
  93 }
  94
  95 static ULONG WINAPI IMediaStreamImpl_Release(IMediaStream* iface)
  96 {
  97     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
  98     ULONG ref = InterlockedDecrement(&This->ref);
  99
 100     TRACE("(%p/%p)\n", iface, This);
 101
 102     if (!ref)
 103       HeapFree(GetProcessHeap(), 0, This);
 104
 105     return ref;
 106 }
 107
 108 /*** IMediaStream methods ***/
 109 static HRESULT WINAPI IMediaStreamImpl_GetMultiMediaStream(IMediaStream* iface, IMultiMediaStream** ppMultiMediaStream)
 110 {
 111     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 112
 113     FIXME("(%p/%p)->(%p) stub!\n", This, iface, ppMultiMediaStream);
 114
 115     return S_FALSE;
 116 }
 117
 118
 119 static HRESULT WINAPI IMediaStreamImpl_GetInformation(IMediaStream* iface, MSPID* pPurposeId, STREAM_TYPE* pType)
 120 {
 121     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 122
 123     TRACE("(%p/%p)->(%p,%p)\n", This, iface, pPurposeId, pType);
 124
 125     if (pPurposeId)
 126         *pPurposeId = This->PurposeId;
 127     if (pType)
 128         *pType = This->StreamType;
 129
 130     return S_OK;
 131 }
 132
 133 static HRESULT WINAPI IMediaStreamImpl_SetSameFormat(IMediaStream* iface, IMediaStream* pStreamThatHasDesiredFormat, DWORD dwFlags)
 134 {
 135     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 136
 137     FIXME("(%p/%p)->(%p,%lx) stub!\n", This, iface, pStreamThatHasDesiredFormat, dwFlags);
 138
 139     return S_FALSE;
 140 }
 141
 142 static HRESULT WINAPI IMediaStreamImpl_AllocateSample(IMediaStream* iface, DWORD dwFlags, IStreamSample** ppSample)
 143 {
 144     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 145
 146     FIXME("(%p/%p)->(%lx,%p) stub!\n", This, iface, dwFlags, ppSample);
 147
 148     return S_FALSE;
 149 }
 150
 151 static HRESULT WINAPI IMediaStreamImpl_CreateSharedSample(IMediaStream* iface, IStreamSample* pExistingSample, DWORD dwFlags, IStreamSample** ppSample)
 152 {
 153     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 154
 155     FIXME("(%p/%p)->(%p,%lx,%p) stub!\n", This, iface, pExistingSample, dwFlags, ppSample);
 156
 157     return S_FALSE;
 158 }
 159
 160 static HRESULT WINAPI IMediaStreamImpl_SendEndOfStream(IMediaStream* iface, DWORD dwFlags)
 161 {
 162     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 163
 164     FIXME("(%p/%p)->(%lx) stub!\n", This, iface, dwFlags);
 165
 166     return S_FALSE;
 167 }
 168
 169 static IMediaStreamVtbl MediaStream_Vtbl =
 170 {
 171     IMediaStreamImpl_QueryInterface,
 172     IMediaStreamImpl_AddRef,
 173     IMediaStreamImpl_Release,
 174     IMediaStreamImpl_GetMultiMediaStream,
 175     IMediaStreamImpl_GetInformation,
 176     IMediaStreamImpl_SetSameFormat,
 177     IMediaStreamImpl_AllocateSample,
 178     IMediaStreamImpl_CreateSharedSample,
 179     IMediaStreamImpl_SendEndOfStream
 180 };