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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "wine/debug.h"
  25
  26 #define COBJMACROS
  27
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30
  31 #include "amstream_private.h"
  32 #include "amstream.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(amstream);
  35
  36 typedef struct {
  37     IMediaStream lpVtbl;
  38     LONG ref;
  39     IMultiMediaStream* Parent;
  40     MSPID PurposeId;
  41     STREAM_TYPE StreamType;
  42 } IMediaStreamImpl;
  43
  44 static const struct IMediaStreamVtbl MediaStream_Vtbl;
  45
  46 HRESULT MediaStream_create(IMultiMediaStream* Parent, const MSPID* pPurposeId, STREAM_TYPE StreamType, IMediaStream** ppMediaStream)
  47 {
  48     IMediaStreamImpl* object;
  49
  50     TRACE("(%p,%p,%p)\n", Parent, pPurposeId, ppMediaStream);
  51
  52     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IMediaStreamImpl));
  53
  54     object->lpVtbl.lpVtbl = &MediaStream_Vtbl;
  55     object->ref = 1;
  56
  57     object->Parent = Parent;
  58     object->PurposeId = *pPurposeId;
  59     object->StreamType = StreamType;
  60
  61     *ppMediaStream = (IMediaStream*)object;
  62
  63     return S_OK;
  64 }
  65
  66 /*** IUnknown methods ***/
  67 static HRESULT WINAPI IMediaStreamImpl_QueryInterface(IMediaStream* iface, REFIID riid, void** ppvObject)
  68 {
  69     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
  70
  71     TRACE("(%p/%p)->(%s,%p)\n", iface, This, debugstr_guid(riid), ppvObject);
  72
  73     if (IsEqualGUID(riid, &IID_IUnknown) ||
  74         IsEqualGUID(riid, &IID_IAMMultiMediaStream))
  75     {
  76       IClassFactory_AddRef(iface);
  77       *ppvObject = This;
  78       return S_OK;
  79     }
  80
  81     ERR("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppvObject);
  82     return E_NOINTERFACE;
  83 }
  84
  85 static ULONG WINAPI IMediaStreamImpl_AddRef(IMediaStream* iface)
  86 {
  87     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
  88
  89     TRACE("(%p/%p)\n", iface, This);
  90
  91     return InterlockedIncrement(&This->ref);
  92 }
  93
  94 static ULONG WINAPI IMediaStreamImpl_Release(IMediaStream* iface)
  95 {
  96     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
  97     ULONG ref = InterlockedDecrement(&This->ref);
  98
  99     TRACE("(%p/%p)\n", iface, This);
 100
 101     if (!ref)
 102       HeapFree(GetProcessHeap(), 0, This);
 103
 104     return ref;
 105 }
 106
 107 /*** IMediaStream methods ***/
 108 static HRESULT WINAPI IMediaStreamImpl_GetMultiMediaStream(IMediaStream* iface, IMultiMediaStream** ppMultiMediaStream)
 109 {
 110     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 111
 112     FIXME("(%p/%p)->(%p) stub!\n", This, iface, ppMultiMediaStream);
 113
 114     return S_FALSE;
 115 }
 116
 117
 118 static HRESULT WINAPI IMediaStreamImpl_GetInformation(IMediaStream* iface, MSPID* pPurposeId, STREAM_TYPE* pType)
 119 {
 120     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 121
 122     TRACE("(%p/%p)->(%p,%p)\n", This, iface, pPurposeId, pType);
 123
 124     if (pPurposeId)
 125         *pPurposeId = This->PurposeId;
 126     if (pType)
 127         *pType = This->StreamType;
 128
 129     return S_OK;
 130 }
 131
 132 static HRESULT WINAPI IMediaStreamImpl_SetSameFormat(IMediaStream* iface, IMediaStream* pStreamThatHasDesiredFormat, DWORD dwFlags)
 133 {
 134     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 135
 136     FIXME("(%p/%p)->(%p,%x) stub!\n", This, iface, pStreamThatHasDesiredFormat, dwFlags);
 137
 138     return S_FALSE;
 139 }
 140
 141 static HRESULT WINAPI IMediaStreamImpl_AllocateSample(IMediaStream* iface, DWORD dwFlags, IStreamSample** ppSample)
 142 {
 143     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 144
 145     FIXME("(%p/%p)->(%x,%p) stub!\n", This, iface, dwFlags, ppSample);
 146
 147     return S_FALSE;
 148 }
 149
 150 static HRESULT WINAPI IMediaStreamImpl_CreateSharedSample(IMediaStream* iface, IStreamSample* pExistingSample, DWORD dwFlags, IStreamSample** ppSample)
 151 {
 152     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 153
 154     FIXME("(%p/%p)->(%p,%x,%p) stub!\n", This, iface, pExistingSample, dwFlags, ppSample);
 155
 156     return S_FALSE;
 157 }
 158
 159 static HRESULT WINAPI IMediaStreamImpl_SendEndOfStream(IMediaStream* iface, DWORD dwFlags)
 160 {
 161     IMediaStreamImpl *This = (IMediaStreamImpl *)iface;
 162
 163     FIXME("(%p/%p)->(%x) stub!\n", This, iface, dwFlags);
 164
 165     return S_FALSE;
 166 }
 167
 168 static const struct IMediaStreamVtbl MediaStream_Vtbl =
 169 {
 170     IMediaStreamImpl_QueryInterface,
 171     IMediaStreamImpl_AddRef,
 172     IMediaStreamImpl_Release,
 173     IMediaStreamImpl_GetMultiMediaStream,
 174     IMediaStreamImpl_GetInformation,
 175     IMediaStreamImpl_SetSameFormat,
 176     IMediaStreamImpl_AllocateSample,
 177     IMediaStreamImpl_CreateSharedSample,
 178     IMediaStreamImpl_SendEndOfStream
 179 };