dlls/quartz/nullrenderer.c

   1 /*
   2  * Null Renderer (Promiscuous, not rendering anything at all!)
   3  *
   4  * Copyright 2004 Christian Costa
   5  * Copyright 2008 Maarten Lankhorst
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23
  24 #define NONAMELESSSTRUCT
  25 #define NONAMELESSUNION
  26 #include "quartz_private.h"
  27 #include "pin.h"
  28
  29 #include "uuids.h"
  30 #include "vfwmsgs.h"
  31 #include "amvideo.h"
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "dshow.h"
  35 #include "evcode.h"
  36 #include "strmif.h"
  37 #include "ddraw.h"
  38
  39 #include "wine/unicode.h"
  40 #include "wine/debug.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  43
  44 typedef struct NullRendererImpl
  45 {
  46     BaseRenderer renderer;
  47     IUnknown IUnknown_inner;
  48     IAMFilterMiscFlags IAMFilterMiscFlags_iface;
  49     IUnknown *outer_unk;
  50 } NullRendererImpl;
  51
  52 static HRESULT WINAPI NullRenderer_DoRenderSample(BaseRenderer *iface, IMediaSample *pMediaSample)
  53 {
  54     return S_OK;
  55 }
  56
  57 static HRESULT WINAPI NullRenderer_CheckMediaType(BaseRenderer *iface, const AM_MEDIA_TYPE * pmt)
  58 {
  59     TRACE("Not a stub!\n");
  60     return S_OK;
  61 }
  62
  63 static const BaseRendererFuncTable RendererFuncTable = {
  64     NullRenderer_CheckMediaType,
  65     NullRenderer_DoRenderSample,
  66     /**/
  67     NULL,
  68     NULL,
  69     NULL,
  70     NULL,
  71     NULL,
  72     NULL,
  73     NULL,
  74     NULL,
  75     NULL,
  76     NULL,
  77     /**/
  78     NULL,
  79     NULL,
  80     NULL,
  81     NULL,
  82     NULL,
  83 };
  84
  85 static inline NullRendererImpl *impl_from_IUnknown(IUnknown *iface)
  86 {
  87     return CONTAINING_RECORD(iface, NullRendererImpl, IUnknown_inner);
  88 }
  89
  90 static HRESULT WINAPI NullRendererInner_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
  91 {
  92     NullRendererImpl *This = impl_from_IUnknown(iface);
  93
  94     TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
  95
  96     *ppv = NULL;
  97
  98     if (IsEqualIID(riid, &IID_IUnknown))
  99         *ppv = &This->IUnknown_inner;
 100     else if (IsEqualIID(riid, &IID_IAMFilterMiscFlags))
 101         *ppv = &This->IAMFilterMiscFlags_iface;
 102     else
 103     {
 104         HRESULT hr;
 105         hr = BaseRendererImpl_QueryInterface(&This->renderer.filter.IBaseFilter_iface, riid, ppv);
 106         if (SUCCEEDED(hr))
 107             return hr;
 108     }
 109
 110     if (*ppv)
 111     {
 112         IUnknown_AddRef((IUnknown *)*ppv);
 113         return S_OK;
 114     }
 115
 116     if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IVideoWindow))
 117         FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 118
 119     return E_NOINTERFACE;
 120 }
 121
 122 static ULONG WINAPI NullRendererInner_AddRef(IUnknown *iface)
 123 {
 124     NullRendererImpl *This = impl_from_IUnknown(iface);
 125     return BaseFilterImpl_AddRef(&This->renderer.filter.IBaseFilter_iface);
 126 }
 127
 128 static ULONG WINAPI NullRendererInner_Release(IUnknown *iface)
 129 {
 130     NullRendererImpl *This = impl_from_IUnknown(iface);
 131     ULONG refCount = BaseFilterImpl_Release(&This->renderer.filter.IBaseFilter_iface);
 132
 133     if (!refCount)
 134     {
 135         TRACE("Destroying Null Renderer\n");
 136         CoTaskMemFree(This);
 137     }
 138
 139     return refCount;
 140 }
 141
 142 static const IUnknownVtbl IInner_VTable =
 143 {
 144     NullRendererInner_QueryInterface,
 145     NullRendererInner_AddRef,
 146     NullRendererInner_Release
 147 };
 148
 149 static inline NullRendererImpl *impl_from_IBaseFilter(IBaseFilter *iface)
 150 {
 151     return CONTAINING_RECORD(iface, NullRendererImpl, renderer.filter.IBaseFilter_iface);
 152 }
 153
 154 static HRESULT WINAPI NullRenderer_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
 155 {
 156     NullRendererImpl *This = impl_from_IBaseFilter(iface);
 157     return IUnknown_QueryInterface(This->outer_unk, riid, ppv);
 158 }
 159
 160 static ULONG WINAPI NullRenderer_AddRef(IBaseFilter * iface)
 161 {
 162     NullRendererImpl *This = impl_from_IBaseFilter(iface);
 163     return IUnknown_AddRef(This->outer_unk);
 164 }
 165
 166 static ULONG WINAPI NullRenderer_Release(IBaseFilter * iface)
 167 {
 168     NullRendererImpl *This = impl_from_IBaseFilter(iface);
 169     return IUnknown_Release(This->outer_unk);
 170 }
 171
 172 static const IBaseFilterVtbl NullRenderer_Vtbl =
 173 {
 174     NullRenderer_QueryInterface,
 175     NullRenderer_AddRef,
 176     NullRenderer_Release,
 177     BaseFilterImpl_GetClassID,
 178     BaseRendererImpl_Stop,
 179     BaseRendererImpl_Pause,
 180     BaseRendererImpl_Run,
 181     BaseRendererImpl_GetState,
 182     BaseRendererImpl_SetSyncSource,
 183     BaseFilterImpl_GetSyncSource,
 184     BaseFilterImpl_EnumPins,
 185     BaseRendererImpl_FindPin,
 186     BaseFilterImpl_QueryFilterInfo,
 187     BaseFilterImpl_JoinFilterGraph,
 188     BaseFilterImpl_QueryVendorInfo
 189 };
 190
 191 static NullRendererImpl *impl_from_IAMFilterMiscFlags(IAMFilterMiscFlags *iface)
 192 {
 193     return CONTAINING_RECORD(iface, NullRendererImpl, IAMFilterMiscFlags_iface);
 194 }
 195
 196 static HRESULT WINAPI AMFilterMiscFlags_QueryInterface(IAMFilterMiscFlags *iface, REFIID riid,
 197         void **ppv)
 198 {
 199     NullRendererImpl *This = impl_from_IAMFilterMiscFlags(iface);
 200     return IUnknown_QueryInterface(This->outer_unk, riid, ppv);
 201 }
 202
 203 static ULONG WINAPI AMFilterMiscFlags_AddRef(IAMFilterMiscFlags *iface)
 204 {
 205     NullRendererImpl *This = impl_from_IAMFilterMiscFlags(iface);
 206     return IUnknown_AddRef(This->outer_unk);
 207 }
 208
 209 static ULONG WINAPI AMFilterMiscFlags_Release(IAMFilterMiscFlags *iface)
 210 {
 211     NullRendererImpl *This = impl_from_IAMFilterMiscFlags(iface);
 212     return IUnknown_Release(This->outer_unk);
 213 }
 214
 215 static ULONG WINAPI AMFilterMiscFlags_GetMiscFlags(IAMFilterMiscFlags *iface)
 216 {
 217     return AM_FILTER_MISC_FLAGS_IS_RENDERER;
 218 }
 219
 220 static const IAMFilterMiscFlagsVtbl IAMFilterMiscFlags_Vtbl = {
 221     AMFilterMiscFlags_QueryInterface,
 222     AMFilterMiscFlags_AddRef,
 223     AMFilterMiscFlags_Release,
 224     AMFilterMiscFlags_GetMiscFlags
 225 };
 226
 227 HRESULT NullRenderer_create(IUnknown *pUnkOuter, void **ppv)
 228 {
 229     HRESULT hr;
 230     NullRendererImpl *pNullRenderer;
 231
 232     TRACE("(%p, %p)\n", pUnkOuter, ppv);
 233
 234     *ppv = NULL;
 235
 236     pNullRenderer = CoTaskMemAlloc(sizeof(NullRendererImpl));
 237     pNullRenderer->IUnknown_inner.lpVtbl = &IInner_VTable;
 238     pNullRenderer->IAMFilterMiscFlags_iface.lpVtbl = &IAMFilterMiscFlags_Vtbl;
 239
 240     if (pUnkOuter)
 241         pNullRenderer->outer_unk = pUnkOuter;
 242     else
 243         pNullRenderer->outer_unk = &pNullRenderer->IUnknown_inner;
 244
 245     hr = BaseRenderer_Init(&pNullRenderer->renderer, &NullRenderer_Vtbl, pUnkOuter,
 246             &CLSID_NullRenderer, (DWORD_PTR)(__FILE__ ": NullRendererImpl.csFilter"),
 247             &RendererFuncTable);
 248
 249     if (FAILED(hr))
 250     {
 251         BaseRendererImpl_Release(&pNullRenderer->renderer.filter.IBaseFilter_iface);
 252         CoTaskMemFree(pNullRenderer);
 253     }
 254     else
 255         *ppv = &pNullRenderer->IUnknown_inner;
 256
 257     return S_OK;
 258 }