Sweden-Number/dlls/quartz/fgraph.c

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/*
* Implementation of CLSID_FilterGraph.
*
* hidenori@a2.ctktv.ne.jp
*/
#include "config.h"
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winerror.h"
#include "wine/obj_base.h"
#include "wine/obj_oleaut.h"
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#include "strmif.h"
#include "control.h"
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#include "uuids.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(quartz);
#include "quartz_private.h"
#include "fgraph.h"
/* can I use offsetof safely? - FIXME? */
static QUARTZ_IFEntry IFEntries[] =
{
{ &IID_IPersist, offsetof(CFilterGraph,persist)-offsetof(CFilterGraph,unk) },
{ &IID_IDispatch, offsetof(CFilterGraph,disp)-offsetof(CFilterGraph,unk) },
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{ &IID_IFilterGraph, offsetof(CFilterGraph,fgraph)-offsetof(CFilterGraph,unk) },
{ &IID_IGraphBuilder, offsetof(CFilterGraph,fgraph)-offsetof(CFilterGraph,unk) },
{ &IID_IFilterGraph2, offsetof(CFilterGraph,fgraph)-offsetof(CFilterGraph,unk) },
{ &IID_IGraphVersion, offsetof(CFilterGraph,graphversion)-offsetof(CFilterGraph,unk) },
{ &IID_IMediaControl, offsetof(CFilterGraph,mediacontrol)-offsetof(CFilterGraph,unk) },
{ &IID_IMediaFilter, offsetof(CFilterGraph,mediafilter)-offsetof(CFilterGraph,unk) },
{ &IID_IMediaEvent, offsetof(CFilterGraph,mediaevent)-offsetof(CFilterGraph,unk) },
{ &IID_IMediaEventEx, offsetof(CFilterGraph,mediaevent)-offsetof(CFilterGraph,unk) },
{ &IID_IMediaEventSink, offsetof(CFilterGraph,mediaeventsink)-offsetof(CFilterGraph,unk) },
{ &IID_IMediaPosition, offsetof(CFilterGraph,mediaposition)-offsetof(CFilterGraph,unk) },
{ &IID_IMediaSeeking, offsetof(CFilterGraph,mediaseeking)-offsetof(CFilterGraph,unk) },
{ &IID_IBasicVideo, offsetof(CFilterGraph,basvid)-offsetof(CFilterGraph,unk) },
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{ &IID_IBasicVideo2, offsetof(CFilterGraph,basvid)-offsetof(CFilterGraph,unk) },
{ &IID_IBasicAudio, offsetof(CFilterGraph,basaud)-offsetof(CFilterGraph,unk) },
{ &IID_IVideoWindow, offsetof(CFilterGraph,vidwin)-offsetof(CFilterGraph,unk) },
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};
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struct FGInitEntry
{
HRESULT (*pInit)(CFilterGraph*);
void (*pUninit)(CFilterGraph*);
};
static const struct FGInitEntry FGRAPH_Init[] =
{
#define FGENT(a) {&CFilterGraph_Init##a,&CFilterGraph_Uninit##a},
FGENT(IPersist)
FGENT(IDispatch)
FGENT(IFilterGraph2)
FGENT(IGraphVersion)
FGENT(IMediaControl)
FGENT(IMediaFilter)
FGENT(IMediaEventEx)
FGENT(IMediaEventSink)
FGENT(IMediaPosition)
FGENT(IMediaSeeking)
FGENT(IBasicVideo2)
FGENT(IBasicAudio)
FGENT(IVideoWindow)
#undef FGENT
{ NULL, NULL },
};
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static void QUARTZ_DestroyFilterGraph(IUnknown* punk)
{
CFilterGraph_THIS(punk,unk);
int i;
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/* At first, call Stop. */
IMediaControl_Stop( CFilterGraph_IMediaControl(This) );
IMediaFilter_Stop( CFilterGraph_IMediaFilter(This) );
i = 0;
while ( FGRAPH_Init[i].pInit != NULL )
{
FGRAPH_Init[i].pUninit( This );
i++;
}
TRACE( "succeeded.\n" );
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}
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HRESULT QUARTZ_CreateFilterGraph(IUnknown* punkOuter,void** ppobj)
{
CFilterGraph* pfg;
HRESULT hr;
int i;
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TRACE("(%p,%p)\n",punkOuter,ppobj);
pfg = (CFilterGraph*)QUARTZ_AllocObj( sizeof(CFilterGraph) );
if ( pfg == NULL )
return E_OUTOFMEMORY;
QUARTZ_IUnkInit( &pfg->unk, punkOuter );
i = 0;
hr = NOERROR;
while ( FGRAPH_Init[i].pInit != NULL )
{
hr = FGRAPH_Init[i].pInit( pfg );
if ( FAILED(hr) )
break;
i++;
}
if ( FAILED(hr) )
{
while ( --i >= 0 )
FGRAPH_Init[i].pUninit( pfg );
QUARTZ_FreeObj( pfg );
return hr;
}
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pfg->unk.pEntries = IFEntries;
pfg->unk.dwEntries = sizeof(IFEntries)/sizeof(IFEntries[0]);
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pfg->unk.pOnFinalRelease = QUARTZ_DestroyFilterGraph;
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*ppobj = (void*)(&pfg->unk);
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return S_OK;
}
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