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 static const IBaseFilterVtbl NullRenderer_Vtbl;
  45 static const IUnknownVtbl IInner_VTable;
  46 static const IAMFilterMiscFlagsVtbl IAMFilterMiscFlags_Vtbl;
  47
  48 typedef struct NullRendererImpl
  49 {
  50     BaseRenderer renderer;
  51
  52     const IUnknownVtbl * IInner_vtbl;
  53     const IAMFilterMiscFlagsVtbl *IAMFilterMiscFlags_vtbl;
  54
  55     IUnknown * pUnkOuter;
  56     BOOL bUnkOuterValid;
  57     BOOL bAggregatable;
  58 } NullRendererImpl;
  59
  60 static HRESULT WINAPI NullRenderer_DoRenderSample(BaseRenderer *iface, IMediaSample *pMediaSample)
  61 {
  62     return S_OK;
  63 }
  64
  65 static HRESULT WINAPI NullRenderer_CheckMediaType(BaseRenderer *iface, const AM_MEDIA_TYPE * pmt)
  66 {
  67     TRACE("Not a stub!\n");
  68     return S_OK;
  69 }
  70
  71 static const BaseRendererFuncTable RendererFuncTable = {
  72     NullRenderer_CheckMediaType,
  73     NullRenderer_DoRenderSample,
  74     /**/
  75     NULL,
  76     NULL,
  77     NULL,
  78     NULL,
  79     NULL,
  80     NULL,
  81     NULL,
  82     NULL,
  83     NULL,
  84     NULL,
  85     /**/
  86     NULL,
  87     NULL,
  88     NULL,
  89     NULL,
  90     NULL,
  91 };
  92
  93 HRESULT NullRenderer_create(IUnknown * pUnkOuter, LPVOID * ppv)
  94 {
  95     HRESULT hr;
  96     NullRendererImpl * pNullRenderer;
  97
  98     TRACE("(%p, %p)\n", pUnkOuter, ppv);
  99
 100     *ppv = NULL;
 101
 102     pNullRenderer = CoTaskMemAlloc(sizeof(NullRendererImpl));
 103     pNullRenderer->pUnkOuter = pUnkOuter;
 104     pNullRenderer->bUnkOuterValid = FALSE;
 105     pNullRenderer->bAggregatable = FALSE;
 106     pNullRenderer->IInner_vtbl = &IInner_VTable;
 107     pNullRenderer->IAMFilterMiscFlags_vtbl = &IAMFilterMiscFlags_Vtbl;
 108
 109     hr = BaseRenderer_Init(&pNullRenderer->renderer, &NullRenderer_Vtbl, pUnkOuter, &CLSID_NullRenderer, (DWORD_PTR)(__FILE__ ": NullRendererImpl.csFilter"), &RendererFuncTable);
 110
 111     if (FAILED(hr))
 112     {
 113         BaseRendererImpl_Release(&pNullRenderer->renderer.filter.IBaseFilter_iface);
 114         CoTaskMemFree(pNullRenderer);
 115     }
 116     else
 117         *ppv = pNullRenderer;
 118
 119     return hr;
 120 }
 121
 122 static HRESULT WINAPI NullRendererInner_QueryInterface(IUnknown * iface, REFIID riid, LPVOID * ppv)
 123 {
 124     ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
 125     TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
 126
 127     if (This->bAggregatable)
 128         This->bUnkOuterValid = TRUE;
 129
 130     *ppv = NULL;
 131
 132     if (IsEqualIID(riid, &IID_IUnknown))
 133         *ppv = &This->IInner_vtbl;
 134     else if (IsEqualIID(riid, &IID_IAMFilterMiscFlags))
 135         *ppv = &This->IAMFilterMiscFlags_vtbl;
 136     else
 137     {
 138         HRESULT hr;
 139         hr = BaseRendererImpl_QueryInterface(&This->renderer.filter.IBaseFilter_iface, riid, ppv);
 140         if (SUCCEEDED(hr))
 141             return hr;
 142     }
 143
 144     if (*ppv)
 145     {
 146         IUnknown_AddRef((IUnknown *)(*ppv));
 147         return S_OK;
 148     }
 149
 150     if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IVideoWindow))
 151         FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 152
 153     return E_NOINTERFACE;
 154 }
 155
 156 static ULONG WINAPI NullRendererInner_AddRef(IUnknown * iface)
 157 {
 158     ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
 159     return BaseFilterImpl_AddRef(&This->renderer.filter.IBaseFilter_iface);
 160 }
 161
 162 static ULONG WINAPI NullRendererInner_Release(IUnknown * iface)
 163 {
 164     ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
 165     ULONG refCount = BaseRendererImpl_Release(&This->renderer.filter.IBaseFilter_iface);
 166
 167     if (!refCount)
 168     {
 169         TRACE("Destroying Null Renderer\n");
 170         CoTaskMemFree(This);
 171         return 0;
 172     }
 173     else
 174         return refCount;
 175 }
 176
 177 static const IUnknownVtbl IInner_VTable =
 178 {
 179     NullRendererInner_QueryInterface,
 180     NullRendererInner_AddRef,
 181     NullRendererInner_Release
 182 };
 183
 184 static HRESULT WINAPI NullRenderer_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
 185 {
 186     NullRendererImpl *This = (NullRendererImpl *)iface;
 187
 188     if (This->bAggregatable)
 189         This->bUnkOuterValid = TRUE;
 190
 191     if (This->pUnkOuter)
 192     {
 193         if (This->bAggregatable)
 194             return IUnknown_QueryInterface(This->pUnkOuter, riid, ppv);
 195
 196         if (IsEqualIID(riid, &IID_IUnknown))
 197         {
 198             HRESULT hr;
 199
 200             IUnknown_AddRef((IUnknown *)&(This->IInner_vtbl));
 201             hr = IUnknown_QueryInterface((IUnknown *)&(This->IInner_vtbl), riid, ppv);
 202             IUnknown_Release((IUnknown *)&(This->IInner_vtbl));
 203             This->bAggregatable = TRUE;
 204             return hr;
 205         }
 206
 207         *ppv = NULL;
 208         return E_NOINTERFACE;
 209     }
 210
 211     return IUnknown_QueryInterface((IUnknown *)&(This->IInner_vtbl), riid, ppv);
 212 }
 213
 214 static ULONG WINAPI NullRenderer_AddRef(IBaseFilter * iface)
 215 {
 216     NullRendererImpl *This = (NullRendererImpl *)iface;
 217
 218     if (This->pUnkOuter && This->bUnkOuterValid)
 219         return IUnknown_AddRef(This->pUnkOuter);
 220     return IUnknown_AddRef((IUnknown *)&(This->IInner_vtbl));
 221 }
 222
 223 static ULONG WINAPI NullRenderer_Release(IBaseFilter * iface)
 224 {
 225     NullRendererImpl *This = (NullRendererImpl *)iface;
 226
 227     if (This->pUnkOuter && This->bUnkOuterValid)
 228         return IUnknown_Release(This->pUnkOuter);
 229     return IUnknown_Release((IUnknown *)&(This->IInner_vtbl));
 230 }
 231
 232 static const IBaseFilterVtbl NullRenderer_Vtbl =
 233 {
 234     NullRenderer_QueryInterface,
 235     NullRenderer_AddRef,
 236     NullRenderer_Release,
 237     BaseFilterImpl_GetClassID,
 238     BaseRendererImpl_Stop,
 239     BaseRendererImpl_Pause,
 240     BaseRendererImpl_Run,
 241     BaseRendererImpl_GetState,
 242     BaseRendererImpl_SetSyncSource,
 243     BaseFilterImpl_GetSyncSource,
 244     BaseFilterImpl_EnumPins,
 245     BaseRendererImpl_FindPin,
 246     BaseFilterImpl_QueryFilterInfo,
 247     BaseFilterImpl_JoinFilterGraph,
 248     BaseFilterImpl_QueryVendorInfo
 249 };
 250
 251 static NullRendererImpl *from_IAMFilterMiscFlags(IAMFilterMiscFlags *iface) {
 252     return (NullRendererImpl*)((char*)iface - offsetof(NullRendererImpl, IAMFilterMiscFlags_vtbl));
 253 }
 254
 255 static HRESULT WINAPI AMFilterMiscFlags_QueryInterface(IAMFilterMiscFlags *iface, REFIID riid, void **ppv) {
 256     NullRendererImpl *This = from_IAMFilterMiscFlags(iface);
 257     return IUnknown_QueryInterface((IUnknown*)This, riid, ppv);
 258 }
 259
 260 static ULONG WINAPI AMFilterMiscFlags_AddRef(IAMFilterMiscFlags *iface) {
 261     NullRendererImpl *This = from_IAMFilterMiscFlags(iface);
 262     return IUnknown_AddRef((IUnknown*)This);
 263 }
 264
 265 static ULONG WINAPI AMFilterMiscFlags_Release(IAMFilterMiscFlags *iface) {
 266     NullRendererImpl *This = from_IAMFilterMiscFlags(iface);
 267     return IUnknown_Release((IUnknown*)This);
 268 }
 269
 270 static ULONG WINAPI AMFilterMiscFlags_GetMiscFlags(IAMFilterMiscFlags *iface) {
 271     return AM_FILTER_MISC_FLAGS_IS_RENDERER;
 272 }
 273
 274 static const IAMFilterMiscFlagsVtbl IAMFilterMiscFlags_Vtbl = {
 275     AMFilterMiscFlags_QueryInterface,
 276     AMFilterMiscFlags_AddRef,
 277     AMFilterMiscFlags_Release,
 278     AMFilterMiscFlags_GetMiscFlags
 279 };