source: trunk/src/quartz/fgraph.c@ 8582

/*
 * Implementation of CLSID_FilterGraph.
 *
 * hidenori@a2.ctktv.ne.jp
 */

#include "config.h"

#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "wine/obj_base.h"
#include "wine/obj_oleaut.h"
#include "strmif.h"
#include "control.h"
#include "uuids.h"

#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(quartz);

#include "quartz_private.h"
#include "fgraph.h"

/***************************************************************************
 *
 *      new/delete for CFilterGraph
 *
 */

/* 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) },
  { &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_IGraphConfig, offsetof(CFilterGraph,grphconf)-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) },
  { &IID_IBasicVideo2, offsetof(CFilterGraph,basvid)-offsetof(CFilterGraph,unk) },
  { &IID_IBasicAudio, offsetof(CFilterGraph,basaud)-offsetof(CFilterGraph,unk) },
  { &IID_IVideoWindow, offsetof(CFilterGraph,vidwin)-offsetof(CFilterGraph,unk) },
};


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(IGraphConfig)
        FGENT(IMediaControl)
        FGENT(IMediaFilter)
        FGENT(IMediaEventEx)
        FGENT(IMediaEventSink)
        FGENT(IMediaPosition)
        FGENT(IMediaSeeking)
        FGENT(IBasicVideo2)
        FGENT(IBasicAudio)
        FGENT(IVideoWindow)

        #undef  FGENT
        { NULL, NULL },
};


static void QUARTZ_DestroyFilterGraph(IUnknown* punk)
{
        CFilterGraph_THIS(punk,unk);
        int     i;

        TRACE( "(%p)\n", punk );

        /* 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" );
}

HRESULT QUARTZ_CreateFilterGraph(IUnknown* punkOuter,void** ppobj)
{
        CFilterGraph*   pfg;
        HRESULT hr;
        int     i;

        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;
        }

        pfg->unk.pEntries = IFEntries;
        pfg->unk.dwEntries = sizeof(IFEntries)/sizeof(IFEntries[0]);
        pfg->unk.pOnFinalRelease = QUARTZ_DestroyFilterGraph;

        *ppobj = (void*)(&pfg->unk);

        return S_OK;
}


/***************************************************************************
 *
 *      CFilterGraph::IPersist
 *
 */

static HRESULT WINAPI
IPersist_fnQueryInterface(IPersist* iface,REFIID riid,void** ppobj)
{
        CFilterGraph_THIS(iface,persist);

        TRACE("(%p)->()\n",This);

        return IUnknown_QueryInterface(This->unk.punkControl,riid,ppobj);
}

static ULONG WINAPI
IPersist_fnAddRef(IPersist* iface)
{
        CFilterGraph_THIS(iface,persist);

        TRACE("(%p)->()\n",This);

        return IUnknown_AddRef(This->unk.punkControl);
}

static ULONG WINAPI
IPersist_fnRelease(IPersist* iface)
{
        CFilterGraph_THIS(iface,persist);

        TRACE("(%p)->()\n",This);

        return IUnknown_Release(This->unk.punkControl);
}


static HRESULT WINAPI
IPersist_fnGetClassID(IPersist* iface,CLSID* pclsid)
{
        CFilterGraph_THIS(iface,persist);

        TRACE("(%p)->()\n",This);

        if ( pclsid == NULL )
                return E_POINTER;
        memcpy( pclsid, &CLSID_FilterGraph, sizeof(CLSID) );

        return E_NOTIMPL;
}


static ICOM_VTABLE(IPersist) ipersist =
{
        ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
        /* IUnknown fields */
        IPersist_fnQueryInterface,
        IPersist_fnAddRef,
        IPersist_fnRelease,
        /* IPersist fields */
        IPersist_fnGetClassID,
};

HRESULT CFilterGraph_InitIPersist( CFilterGraph* pfg )
{
        TRACE("(%p)\n",pfg);
        ICOM_VTBL(&pfg->persist) = &ipersist;

        return NOERROR;
}

void CFilterGraph_UninitIPersist( CFilterGraph* pfg )
{
        TRACE("(%p)\n",pfg);
}