mf/topoloader: Preserve input topology id.

dlls/mf/mf_private.h

@@ -118,6 +118,7 @@ extern HRESULT urlmon_scheme_handler_construct(REFIID riid, void **obj);
 
 extern BOOL mf_is_sample_copier_transform(IMFTransform *transform);
 extern BOOL mf_is_sar_sink(IMFMediaSink *sink);
+extern HRESULT create_topology(TOPOID id, IMFTopology **topology);
 extern HRESULT topology_node_get_object(IMFTopologyNode *node, REFIID riid, void **obj);
 extern HRESULT topology_node_get_type_handler(IMFTopologyNode *node, DWORD stream, BOOL output, IMFMediaTypeHandler **handler);
 extern HRESULT topology_node_init_media_type(IMFTopologyNode *node, DWORD stream, BOOL output, IMFMediaType **type);

dlls/mf/tests/mf.c

@@ -4179,7 +4179,7 @@ static void test_topology_loader(void)
         {
             IMFTopology_GetTopologyID(topology, &oldtopoid);
             IMFTopology_GetTopologyID(full_topology, &newtopoid);
-            todo_wine ok(oldtopoid == newtopoid, "Expected the same topology id. %llu == %llu\n", oldtopoid, newtopoid);
+            ok(oldtopoid == newtopoid, "Expected the same topology id. %llu == %llu\n", oldtopoid, newtopoid);
             ok(topology != full_topology, "Expected a different object for the resolved topology.\n");
 
             hr = IMFTopology_GetCount(full_topology, &count);
@@ -4331,7 +4331,7 @@ todo_wine {
             ok(full_topology != topology2, "Unexpected instance.\n");
             IMFTopology_GetTopologyID(topology2, &oldtopoid);
             IMFTopology_GetTopologyID(full_topology, &newtopoid);
-            todo_wine ok(oldtopoid == newtopoid, "Expected the same topology id. %llu == %llu\n", oldtopoid, newtopoid);
+            ok(oldtopoid == newtopoid, "Expected the same topology id. %llu == %llu\n", oldtopoid, newtopoid);
             hr = IMFTopology_GetUINT32(topology2, &IID_IMFTopology, &value);
             ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
 

dlls/mf/topology.c

@@ -866,19 +866,11 @@ static TOPOID topology_generate_id(void)
     return next_topology_id;
 }
 
-/***********************************************************************
- *      MFCreateTopology (mf.@)
- */
-HRESULT WINAPI MFCreateTopology(IMFTopology **topology)
+HRESULT create_topology(TOPOID id, IMFTopology **topology)
 {
     struct topology *object;
     HRESULT hr;
 
-    TRACE("%p.\n", topology);
-
-    if (!topology)
-        return E_POINTER;
-
     if (!(object = calloc(1, sizeof(*object))))
         return E_OUTOFMEMORY;
 
@@ -892,13 +884,26 @@ HRESULT WINAPI MFCreateTopology(IMFTopology **topology)
         return hr;
     }
 
-    object->id = topology_generate_id();
+    object->id = id;
 
     *topology = &object->IMFTopology_iface;
 
     return S_OK;
 }
 
+/***********************************************************************
+ *      MFCreateTopology (mf.@)
+ */
+HRESULT WINAPI MFCreateTopology(IMFTopology **topology)
+{
+    TRACE("%p.\n", topology);
+
+    if (!topology)
+        return E_POINTER;
+
+    return create_topology(topology_generate_id(), topology);
+}
+
 static HRESULT WINAPI topology_node_QueryInterface(IMFTopologyNode *iface, REFIID riid, void **out)
 {
     struct topology_node *node = impl_from_IMFTopologyNode(iface);

dlls/mf/topology_loader.c

@@ -721,6 +721,7 @@ static HRESULT WINAPI topology_loader_Load(IMFTopoLoader *iface, IMFTopology *in
     unsigned short i = 0;
     IMFStreamSink *sink;
     IUnknown *object;
+    TOPOID topoid;
     HRESULT hr = E_FAIL;
 
     FIXME("iface %p, input_topology %p, ret_topology %p, current_topology %p stub!\n",
@@ -763,7 +764,8 @@ static HRESULT WINAPI topology_loader_Load(IMFTopoLoader *iface, IMFTopology *in
             return hr;
     }
 
-    if (FAILED(hr = MFCreateTopology(&output_topology)))
+    IMFTopology_GetTopologyID(input_topology, &topoid);
+    if (FAILED(hr = create_topology(topoid, &output_topology)))
         return hr;
 
     IMFTopology_CopyAllItems(input_topology, (IMFAttributes *)output_topology);