wine/dlls/quartz/nullrenderer.c
Maarten Lankhorst 3a9040c1f2 quartz: Only query for event interface when there is a filtergraph.
Prevents a null pointer dereference.
2008-06-21 11:15:07 +02:00

612 lines
17 KiB
C

/*
* Null Renderer (Promiscuous, not rendering anything at all!)
*
* Copyright 2004 Christian Costa
* Copyright 2008 Maarten Lankhorst
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#define NONAMELESSSTRUCT
#define NONAMELESSUNION
#include "quartz_private.h"
#include "control_private.h"
#include "pin.h"
#include "uuids.h"
#include "vfwmsgs.h"
#include "amvideo.h"
#include "windef.h"
#include "winbase.h"
#include "dshow.h"
#include "evcode.h"
#include "strmif.h"
#include "ddraw.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(quartz);
static const WCHAR wcsInputPinName[] = {'i','n','p','u','t',' ','p','i','n',0};
static const IBaseFilterVtbl NullRenderer_Vtbl;
static const IUnknownVtbl IInner_VTable;
static const IPinVtbl NullRenderer_InputPin_Vtbl;
typedef struct NullRendererImpl
{
const IBaseFilterVtbl * lpVtbl;
const IUnknownVtbl * IInner_vtbl;
LONG refCount;
CRITICAL_SECTION csFilter;
FILTER_STATE state;
REFERENCE_TIME rtStreamStart;
IReferenceClock * pClock;
FILTER_INFO filterInfo;
InputPin *pInputPin;
IUnknown * pUnkOuter;
BOOL bUnkOuterValid;
BOOL bAggregatable;
MediaSeekingImpl mediaSeeking;
} NullRendererImpl;
static const IMemInputPinVtbl MemInputPin_Vtbl =
{
MemInputPin_QueryInterface,
MemInputPin_AddRef,
MemInputPin_Release,
MemInputPin_GetAllocator,
MemInputPin_NotifyAllocator,
MemInputPin_GetAllocatorRequirements,
MemInputPin_Receive,
MemInputPin_ReceiveMultiple,
MemInputPin_ReceiveCanBlock
};
static HRESULT NullRenderer_Sample(LPVOID iface, IMediaSample * pSample)
{
LPBYTE pbSrcStream = NULL;
long cbSrcStream = 0;
REFERENCE_TIME tStart, tStop;
HRESULT hr;
TRACE("%p %p\n", iface, pSample);
hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
if (FAILED(hr))
{
ERR("Cannot get pointer to sample data (%x)\n", hr);
return hr;
}
hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
if (FAILED(hr))
ERR("Cannot get sample time (%x)\n", hr);
cbSrcStream = IMediaSample_GetActualDataLength(pSample);
TRACE("val %p %ld\n", pbSrcStream, cbSrcStream);
return S_OK;
}
static HRESULT NullRenderer_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
{
TRACE("Not a stub!\n");
return S_OK;
}
static inline NullRendererImpl *impl_from_IMediaSeeking( IMediaSeeking *iface )
{
return (NullRendererImpl *)((char*)iface - FIELD_OFFSET(NullRendererImpl, mediaSeeking.lpVtbl));
}
static HRESULT WINAPI NullRendererImpl_Seeking_QueryInterface(IMediaSeeking * iface, REFIID riid, LPVOID * ppv)
{
NullRendererImpl *This = impl_from_IMediaSeeking(iface);
return IUnknown_QueryInterface((IUnknown *)This, riid, ppv);
}
static ULONG WINAPI NullRendererImpl_Seeking_AddRef(IMediaSeeking * iface)
{
NullRendererImpl *This = impl_from_IMediaSeeking(iface);
return IUnknown_AddRef((IUnknown *)This);
}
static ULONG WINAPI NullRendererImpl_Seeking_Release(IMediaSeeking * iface)
{
NullRendererImpl *This = impl_from_IMediaSeeking(iface);
return IUnknown_Release((IUnknown *)This);
}
static const IMediaSeekingVtbl TransformFilter_Seeking_Vtbl =
{
NullRendererImpl_Seeking_QueryInterface,
NullRendererImpl_Seeking_AddRef,
NullRendererImpl_Seeking_Release,
MediaSeekingImpl_GetCapabilities,
MediaSeekingImpl_CheckCapabilities,
MediaSeekingImpl_IsFormatSupported,
MediaSeekingImpl_QueryPreferredFormat,
MediaSeekingImpl_GetTimeFormat,
MediaSeekingImpl_IsUsingTimeFormat,
MediaSeekingImpl_SetTimeFormat,
MediaSeekingImpl_GetDuration,
MediaSeekingImpl_GetStopPosition,
MediaSeekingImpl_GetCurrentPosition,
MediaSeekingImpl_ConvertTimeFormat,
MediaSeekingImpl_SetPositions,
MediaSeekingImpl_GetPositions,
MediaSeekingImpl_GetAvailable,
MediaSeekingImpl_SetRate,
MediaSeekingImpl_GetRate,
MediaSeekingImpl_GetPreroll
};
static HRESULT NullRendererImpl_Change(IBaseFilter *iface)
{
TRACE("(%p)\n", iface);
return S_OK;
}
HRESULT NullRenderer_create(IUnknown * pUnkOuter, LPVOID * ppv)
{
HRESULT hr;
PIN_INFO piInput;
NullRendererImpl * pNullRenderer;
TRACE("(%p, %p)\n", pUnkOuter, ppv);
*ppv = NULL;
pNullRenderer = CoTaskMemAlloc(sizeof(NullRendererImpl));
pNullRenderer->pUnkOuter = pUnkOuter;
pNullRenderer->bUnkOuterValid = FALSE;
pNullRenderer->bAggregatable = FALSE;
pNullRenderer->IInner_vtbl = &IInner_VTable;
pNullRenderer->lpVtbl = &NullRenderer_Vtbl;
pNullRenderer->refCount = 1;
InitializeCriticalSection(&pNullRenderer->csFilter);
pNullRenderer->csFilter.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": NullRendererImpl.csFilter");
pNullRenderer->state = State_Stopped;
pNullRenderer->pClock = NULL;
ZeroMemory(&pNullRenderer->filterInfo, sizeof(FILTER_INFO));
/* construct input pin */
piInput.dir = PINDIR_INPUT;
piInput.pFilter = (IBaseFilter *)pNullRenderer;
lstrcpynW(piInput.achName, wcsInputPinName, sizeof(piInput.achName) / sizeof(piInput.achName[0]));
hr = InputPin_Construct(&NullRenderer_InputPin_Vtbl, &piInput, NullRenderer_Sample, (LPVOID)pNullRenderer, NullRenderer_QueryAccept, NULL, &pNullRenderer->csFilter, NULL, (IPin **)&pNullRenderer->pInputPin);
if (SUCCEEDED(hr))
{
MediaSeekingImpl_Init((IBaseFilter*)pNullRenderer, NullRendererImpl_Change, NullRendererImpl_Change, NullRendererImpl_Change, &pNullRenderer->mediaSeeking, &pNullRenderer->csFilter);
pNullRenderer->mediaSeeking.lpVtbl = &TransformFilter_Seeking_Vtbl;
*ppv = (LPVOID)pNullRenderer;
}
else
{
pNullRenderer->csFilter.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&pNullRenderer->csFilter);
CoTaskMemFree(pNullRenderer);
}
return hr;
}
static HRESULT WINAPI NullRendererInner_QueryInterface(IUnknown * iface, REFIID riid, LPVOID * ppv)
{
ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
if (This->bAggregatable)
This->bUnkOuterValid = TRUE;
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown))
*ppv = (LPVOID)&(This->IInner_vtbl);
else if (IsEqualIID(riid, &IID_IPersist))
*ppv = (LPVOID)This;
else if (IsEqualIID(riid, &IID_IMediaFilter))
*ppv = (LPVOID)This;
else if (IsEqualIID(riid, &IID_IBaseFilter))
*ppv = (LPVOID)This;
else if (IsEqualIID(riid, &IID_IMediaSeeking))
*ppv = &This->mediaSeeking;
if (*ppv)
{
IUnknown_AddRef((IUnknown *)(*ppv));
return S_OK;
}
if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IVideoWindow))
FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI NullRendererInner_AddRef(IUnknown * iface)
{
ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
ULONG refCount = InterlockedIncrement(&This->refCount);
TRACE("(%p/%p)->() AddRef from %d\n", This, iface, refCount - 1);
return refCount;
}
static ULONG WINAPI NullRendererInner_Release(IUnknown * iface)
{
ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
ULONG refCount = InterlockedDecrement(&This->refCount);
TRACE("(%p/%p)->() Release from %d\n", This, iface, refCount + 1);
if (!refCount)
{
IPin *pConnectedTo;
if (This->pClock)
IReferenceClock_Release(This->pClock);
if (SUCCEEDED(IPin_ConnectedTo((IPin *)This->pInputPin, &pConnectedTo)))
{
IPin_Disconnect(pConnectedTo);
IPin_Release(pConnectedTo);
}
IPin_Disconnect((IPin *)This->pInputPin);
IPin_Release((IPin *)This->pInputPin);
This->lpVtbl = NULL;
This->csFilter.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->csFilter);
TRACE("Destroying Null Renderer\n");
CoTaskMemFree(This);
return 0;
}
else
return refCount;
}
static const IUnknownVtbl IInner_VTable =
{
NullRendererInner_QueryInterface,
NullRendererInner_AddRef,
NullRendererInner_Release
};
static HRESULT WINAPI NullRenderer_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
if (This->bAggregatable)
This->bUnkOuterValid = TRUE;
if (This->pUnkOuter)
{
if (This->bAggregatable)
return IUnknown_QueryInterface(This->pUnkOuter, riid, ppv);
if (IsEqualIID(riid, &IID_IUnknown))
{
HRESULT hr;
IUnknown_AddRef((IUnknown *)&(This->IInner_vtbl));
hr = IUnknown_QueryInterface((IUnknown *)&(This->IInner_vtbl), riid, ppv);
IUnknown_Release((IUnknown *)&(This->IInner_vtbl));
This->bAggregatable = TRUE;
return hr;
}
*ppv = NULL;
return E_NOINTERFACE;
}
return IUnknown_QueryInterface((IUnknown *)&(This->IInner_vtbl), riid, ppv);
}
static ULONG WINAPI NullRenderer_AddRef(IBaseFilter * iface)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
if (This->pUnkOuter && This->bUnkOuterValid)
return IUnknown_AddRef(This->pUnkOuter);
return IUnknown_AddRef((IUnknown *)&(This->IInner_vtbl));
}
static ULONG WINAPI NullRenderer_Release(IBaseFilter * iface)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
if (This->pUnkOuter && This->bUnkOuterValid)
return IUnknown_Release(This->pUnkOuter);
return IUnknown_Release((IUnknown *)&(This->IInner_vtbl));
}
/** IPersist methods **/
static HRESULT WINAPI NullRenderer_GetClassID(IBaseFilter * iface, CLSID * pClsid)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, pClsid);
*pClsid = CLSID_NullRenderer;
return S_OK;
}
/** IMediaFilter methods **/
static HRESULT WINAPI NullRenderer_Stop(IBaseFilter * iface)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->()\n", This, iface);
EnterCriticalSection(&This->csFilter);
{
This->state = State_Stopped;
}
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
static HRESULT WINAPI NullRenderer_Pause(IBaseFilter * iface)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->()\n", This, iface);
EnterCriticalSection(&This->csFilter);
{
if (This->state == State_Stopped)
This->pInputPin->end_of_stream = 0;
This->state = State_Paused;
}
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
static HRESULT WINAPI NullRenderer_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%s)\n", This, iface, wine_dbgstr_longlong(tStart));
EnterCriticalSection(&This->csFilter);
{
This->rtStreamStart = tStart;
This->state = State_Running;
This->pInputPin->end_of_stream = 0;
}
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
static HRESULT WINAPI NullRenderer_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%d, %p)\n", This, iface, dwMilliSecsTimeout, pState);
EnterCriticalSection(&This->csFilter);
{
*pState = This->state;
}
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
static HRESULT WINAPI NullRenderer_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, pClock);
EnterCriticalSection(&This->csFilter);
{
if (This->pClock)
IReferenceClock_Release(This->pClock);
This->pClock = pClock;
if (This->pClock)
IReferenceClock_AddRef(This->pClock);
}
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
static HRESULT WINAPI NullRenderer_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, ppClock);
EnterCriticalSection(&This->csFilter);
{
*ppClock = This->pClock;
if (This->pClock)
IReferenceClock_AddRef(This->pClock);
}
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
/** IBaseFilter implementation **/
static HRESULT NullRenderer_GetPin(IBaseFilter *iface, ULONG pos, IPin **pin, DWORD *lastsynctick)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
/* Our pins are static, not changing so setting static tick count is ok */
*lastsynctick = 0;
if (pos >= 1)
return S_FALSE;
*pin = (IPin *)This->pInputPin;
IPin_AddRef(*pin);
return S_OK;
}
static HRESULT WINAPI NullRenderer_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
return IEnumPinsImpl_Construct(ppEnum, NullRenderer_GetPin, iface);
}
static HRESULT WINAPI NullRenderer_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%p,%p)\n", This, iface, debugstr_w(Id), ppPin);
FIXME("NullRenderer::FindPin(...)\n");
/* FIXME: critical section */
return E_NOTIMPL;
}
static HRESULT WINAPI NullRenderer_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, pInfo);
strcpyW(pInfo->achName, This->filterInfo.achName);
pInfo->pGraph = This->filterInfo.pGraph;
if (pInfo->pGraph)
IFilterGraph_AddRef(pInfo->pGraph);
return S_OK;
}
static HRESULT WINAPI NullRenderer_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%p, %s)\n", This, iface, pGraph, debugstr_w(pName));
EnterCriticalSection(&This->csFilter);
{
if (pName)
strcpyW(This->filterInfo.achName, pName);
else
*This->filterInfo.achName = '\0';
This->filterInfo.pGraph = pGraph; /* NOTE: do NOT increase ref. count */
}
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
static HRESULT WINAPI NullRenderer_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo)
{
NullRendererImpl *This = (NullRendererImpl *)iface;
TRACE("(%p/%p)->(%p)\n", This, iface, pVendorInfo);
return E_NOTIMPL;
}
static const IBaseFilterVtbl NullRenderer_Vtbl =
{
NullRenderer_QueryInterface,
NullRenderer_AddRef,
NullRenderer_Release,
NullRenderer_GetClassID,
NullRenderer_Stop,
NullRenderer_Pause,
NullRenderer_Run,
NullRenderer_GetState,
NullRenderer_SetSyncSource,
NullRenderer_GetSyncSource,
NullRenderer_EnumPins,
NullRenderer_FindPin,
NullRenderer_QueryFilterInfo,
NullRenderer_JoinFilterGraph,
NullRenderer_QueryVendorInfo
};
static HRESULT WINAPI NullRenderer_InputPin_EndOfStream(IPin * iface)
{
InputPin* This = (InputPin*)iface;
IMediaEventSink* pEventSink;
IFilterGraph *graph;
HRESULT hr = S_OK;
TRACE("(%p/%p)->()\n", This, iface);
InputPin_EndOfStream(iface);
graph = ((NullRendererImpl*)This->pin.pinInfo.pFilter)->filterInfo.pGraph;
if (graph)
{
hr = IFilterGraph_QueryInterface(((NullRendererImpl*)This->pin.pinInfo.pFilter)->filterInfo.pGraph, &IID_IMediaEventSink, (LPVOID*)&pEventSink);
if (SUCCEEDED(hr))
{
hr = IMediaEventSink_Notify(pEventSink, EC_COMPLETE, S_OK, 0);
IMediaEventSink_Release(pEventSink);
}
}
return hr;
}
static const IPinVtbl NullRenderer_InputPin_Vtbl =
{
InputPin_QueryInterface,
IPinImpl_AddRef,
InputPin_Release,
InputPin_Connect,
InputPin_ReceiveConnection,
IPinImpl_Disconnect,
IPinImpl_ConnectedTo,
IPinImpl_ConnectionMediaType,
IPinImpl_QueryPinInfo,
IPinImpl_QueryDirection,
IPinImpl_QueryId,
IPinImpl_QueryAccept,
IPinImpl_EnumMediaTypes,
IPinImpl_QueryInternalConnections,
NullRenderer_InputPin_EndOfStream,
InputPin_BeginFlush,
InputPin_EndFlush,
InputPin_NewSegment
};