quartz: IEnumFiltersImpl needs to access data from IGraphFilterImpl.

dlls/quartz/enumfilters.c

@@ -28,8 +28,10 @@ typedef struct IEnumFiltersImpl
 {
     IEnumFilters IEnumFilters_iface;
     LONG refCount;
-    IBaseFilter ** ppFilters;
+    IGraphVersion * pVersionSource;
-    int nFilters;
+    LONG Version;
+    IBaseFilter *** pppFilters;
+    ULONG * pNumFilters;
     ULONG uIndex;
 } IEnumFiltersImpl;
 
@@ -40,13 +42,15 @@ static inline IEnumFiltersImpl *impl_from_IEnumFilters(IEnumFilters *iface)
     return CONTAINING_RECORD(iface, IEnumFiltersImpl, IEnumFilters_iface);
 }
 
-HRESULT IEnumFiltersImpl_Construct(IBaseFilter ** ppFilters, ULONG nFilters, IEnumFilters ** ppEnum)
+HRESULT IEnumFiltersImpl_Construct(IGraphVersion * pVersionSource, IBaseFilter *** pppFilters, ULONG * pNumFilters, IEnumFilters ** ppEnum)
 {
     /* Note: The incoming IBaseFilter interfaces are not AddRef'd here as in Windows,
      * they should have been previously AddRef'd. */
     IEnumFiltersImpl * pEnumFilters = CoTaskMemAlloc(sizeof(IEnumFiltersImpl));
+    HRESULT hr;
+    LONG currentVersion;
 
-    TRACE("(%p, %d, %p)\n", ppFilters, nFilters, ppEnum);
+    TRACE("(%p, %p, %p)\n", pppFilters, pNumFilters, ppEnum);
 
     *ppEnum = NULL;
 
@@ -58,15 +62,14 @@ HRESULT IEnumFiltersImpl_Construct(IBaseFilter ** ppFilters, ULONG nFilters, IEn
     pEnumFilters->IEnumFilters_iface.lpVtbl = &IEnumFiltersImpl_Vtbl;
     pEnumFilters->refCount = 1;
     pEnumFilters->uIndex = 0;
-    pEnumFilters->nFilters = nFilters;
+    pEnumFilters->pNumFilters = pNumFilters;
-    pEnumFilters->ppFilters = CoTaskMemAlloc(sizeof(IBaseFilter*) * nFilters);
+    pEnumFilters->pppFilters = pppFilters;
-    if (!pEnumFilters->ppFilters)
+    IGraphVersion_AddRef(pVersionSource);
-    {
+    pEnumFilters->pVersionSource = pVersionSource;
-	CoTaskMemFree(pEnumFilters);
-	return E_OUTOFMEMORY;
-    }
 
-    memcpy(pEnumFilters->ppFilters, ppFilters, nFilters * sizeof(IBaseFilter*));
+    /* Store the current version of the graph */
+    hr = IGraphVersion_QueryVersion(pVersionSource, &currentVersion);
+    pEnumFilters->Version = (hr==S_OK) ? currentVersion : 0;
 
     *ppEnum = &pEnumFilters->IEnumFilters_iface;
     return S_OK;
@@ -113,8 +116,7 @@ static ULONG WINAPI IEnumFiltersImpl_Release(IEnumFilters * iface)
 
     if (!refCount)
     {
-        CoTaskMemFree(This->ppFilters);
+        IGraphVersion_Release(This->pVersionSource);
-        CoTaskMemFree(This);
         return 0;
     }
     else
@@ -125,18 +127,26 @@ static HRESULT WINAPI IEnumFiltersImpl_Next(IEnumFilters * iface, ULONG cFilters
 {
     ULONG cFetched; 
     ULONG i;
+    LONG currentVersion;
     IEnumFiltersImpl *This = impl_from_IEnumFilters(iface);
+    HRESULT hr;
 
-    cFetched = min(This->nFilters, This->uIndex + cFilters) - This->uIndex;
+    cFetched = min(*This->pNumFilters, This->uIndex + cFilters) - This->uIndex;
 
     TRACE("(%p)->(%u, %p, %p)\n", iface, cFilters, ppFilters, pcFetched);
 
+    /* First of all check if the graph has changed */
+    hr = IGraphVersion_QueryVersion(This->pVersionSource, &currentVersion);
+    if (hr==S_OK && This->Version != currentVersion)
+        return VFW_E_ENUM_OUT_OF_SYNC;
+
+
     if (!ppFilters)
         return E_POINTER;
 
     for (i = 0; i < cFetched; i++)
     {
-	ppFilters[i] = This->ppFilters[This->uIndex + i];
+        ppFilters[i] = (*This->pppFilters)[This->uIndex + i];
 	IBaseFilter_AddRef(ppFilters[i]);
     }
 
@@ -156,7 +166,7 @@ static HRESULT WINAPI IEnumFiltersImpl_Skip(IEnumFilters * iface, ULONG cFilters
 
     TRACE("(%p)->(%u)\n", iface, cFilters);
 
-    if (This->uIndex + cFilters < This->nFilters)
+    if (This->uIndex + cFilters < *This->pNumFilters)
     {
         This->uIndex += cFilters;
         return S_OK;
@@ -167,10 +177,15 @@ static HRESULT WINAPI IEnumFiltersImpl_Skip(IEnumFilters * iface, ULONG cFilters
 static HRESULT WINAPI IEnumFiltersImpl_Reset(IEnumFilters * iface)
 {
     IEnumFiltersImpl *This = impl_from_IEnumFilters(iface);
+    HRESULT hr;
+    LONG currentVersion;
 
     TRACE("(%p)->()\n", iface);
 
     This->uIndex = 0;
+    hr = IGraphVersion_QueryVersion(This->pVersionSource, &currentVersion);
+    if (!hr)
+        This->Version = currentVersion;
     return S_OK;
 }
 
@@ -181,7 +196,7 @@ static HRESULT WINAPI IEnumFiltersImpl_Clone(IEnumFilters * iface, IEnumFilters
 
     TRACE("(%p)->(%p)\n", iface, ppEnum);
 
-    hr = IEnumFiltersImpl_Construct(This->ppFilters, This->nFilters, ppEnum);
+    hr = IEnumFiltersImpl_Construct(This->pVersionSource, This->pppFilters, This->pNumFilters, ppEnum);
     if (FAILED(hr))
         return hr;
     return IEnumFilters_Skip(*ppEnum, This->uIndex);

dlls/quartz/filtergraph.c

@@ -162,11 +162,11 @@ typedef struct _IFilterGraphImpl {
     IGraphConfig IGraphConfig_iface;
     IMediaPosition IMediaPosition_iface;
     IObjectWithSite IObjectWithSite_iface;
+    IGraphVersion IGraphVersion_iface;
     /* IAMGraphStreams */
     /* IAMStats */
     /* IFilterChain */
     /* IFilterMapper2 */
-    /* IGraphVersion */
     /* IQueueCommand */
     /* IRegisterServiceProvider */
     /* IResourceMananger */
@@ -179,7 +179,7 @@ typedef struct _IFilterGraphImpl {
     IFilterMapper2 * pFilterMapper2;
     IBaseFilter ** ppFiltersInGraph;
     LPWSTR * pFilterNames;
-    int nFilters;
+    ULONG nFilters;
     int filterCapacity;
     LONG nameIndex;
     IReferenceClock *refClock;
@@ -269,6 +269,9 @@ static HRESULT WINAPI FilterGraphInner_QueryInterface(IUnknown *iface, REFIID ri
     } else if (IsEqualGUID(&IID_IFilterMapper3, riid)) {
         *ppvObj = This->pFilterMapper2;
         TRACE("   returning IFilterMapper3 interface from aggregated filtermapper (%p)\n", *ppvObj);
+    } else if (IsEqualGUID(&IID_IGraphVersion, riid)) {
+        *ppvObj = &This->IGraphConfig_iface;
+        TRACE("   returning IGraphConfig interface (%p)\n", *ppvObj);
     } else {
         *ppvObj = NULL;
 	FIXME("unknown interface %s\n", debugstr_guid(riid));
@@ -562,7 +565,7 @@ static HRESULT WINAPI FilterGraph2_EnumFilters(IFilterGraph2 *iface, IEnumFilter
 
     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 
-    return IEnumFiltersImpl_Construct(This->ppFiltersInGraph, This->nFilters, ppEnum);
+    return IEnumFiltersImpl_Construct(&This->IGraphVersion_iface, &This->ppFiltersInGraph, &This->nFilters, ppEnum);
 }
 
 static HRESULT WINAPI FilterGraph2_FindFilterByName(IFilterGraph2 *iface, LPCWSTR pName,
@@ -5547,6 +5550,49 @@ static const IGraphConfigVtbl IGraphConfig_VTable =
     GraphConfig_RemoveFilterEx
 };
 
+static inline IFilterGraphImpl *impl_from_IGraphVersion(IGraphVersion *iface)
+{
+    return CONTAINING_RECORD(iface, IFilterGraphImpl, IGraphVersion_iface);
+}
+
+static HRESULT WINAPI GraphVersion_QueryInterface(IGraphVersion *iface, REFIID riid, void **ppv)
+{
+    IFilterGraphImpl *This = impl_from_IGraphVersion(iface);
+
+    return IUnknown_QueryInterface(This->outer_unk, riid, ppv);
+}
+
+static ULONG WINAPI GraphVersion_AddRef(IGraphVersion *iface)
+{
+    IFilterGraphImpl *This = impl_from_IGraphVersion(iface);
+
+    return IUnknown_AddRef(This->outer_unk);
+}
+
+static ULONG WINAPI GraphVersion_Release(IGraphVersion *iface)
+{
+    IFilterGraphImpl *This = impl_from_IGraphVersion(iface);
+
+    return IUnknown_Release(This->outer_unk);
+}
+
+static HRESULT WINAPI GraphVersion_QueryVersion(IGraphVersion *iface, LONG *pVersion)
+{
+    IFilterGraphImpl *This = impl_from_IGraphVersion(iface);
+
+    FIXME("(%p)->(%p): stub!\n", This, pVersion);
+
+    return E_NOTIMPL;
+}
+
+static const IGraphVersionVtbl IGraphVersion_VTable =
+{
+    GraphVersion_QueryInterface,
+    GraphVersion_AddRef,
+    GraphVersion_Release,
+    GraphVersion_QueryVersion,
+};
+
 static const IUnknownVtbl IInner_VTable =
 {
     FilterGraphInner_QueryInterface,
@@ -5579,6 +5625,7 @@ HRESULT FilterGraph_create(IUnknown *pUnkOuter, LPVOID *ppObj)
     fimpl->IGraphConfig_iface.lpVtbl = &IGraphConfig_VTable;
     fimpl->IMediaPosition_iface.lpVtbl = &IMediaPosition_VTable;
     fimpl->IObjectWithSite_iface.lpVtbl = &IObjectWithSite_VTable;
+    fimpl->IGraphVersion_iface.lpVtbl = &IGraphVersion_VTable;
     fimpl->ref = 1;
     fimpl->ppFiltersInGraph = NULL;
     fimpl->pFilterNames = NULL;

dlls/quartz/quartz_private.h

@@ -59,7 +59,7 @@ HRESULT VMR9Impl_create(IUnknown *pUnkOuter, LPVOID *ppv) DECLSPEC_HIDDEN;
 HRESULT EnumMonikerImpl_Create(IMoniker ** ppMoniker, ULONG nMonikerCount, IEnumMoniker ** ppEnum) DECLSPEC_HIDDEN;
 
 HRESULT IEnumRegFiltersImpl_Construct(REGFILTER * pInRegFilters, const ULONG size, IEnumRegFilters ** ppEnum) DECLSPEC_HIDDEN;
-HRESULT IEnumFiltersImpl_Construct(IBaseFilter ** ppFilters, ULONG nFilters, IEnumFilters ** ppEnum) DECLSPEC_HIDDEN;
+HRESULT IEnumFiltersImpl_Construct(IGraphVersion * pVersionSource, IBaseFilter *** pppFilters, ULONG * pNumFilters, IEnumFilters ** ppEnum) DECLSPEC_HIDDEN;
 
 extern const char * qzdebugstr_guid(const GUID * id) DECLSPEC_HIDDEN;
 extern void video_unregister_windowclass(void) DECLSPEC_HIDDEN;