d3drm: Fix refcounting for IDirect3DRM{1-3}.

dlls/d3drm/d3drm.c

@@ -55,7 +55,7 @@ struct d3drm
     IDirect3DRM IDirect3DRM_iface;
     IDirect3DRM2 IDirect3DRM2_iface;
     IDirect3DRM3 IDirect3DRM3_iface;
-    LONG ref;
+    LONG ref1, ref2, ref3, iface_count;
 };
 
 static inline struct d3drm *impl_from_IDirect3DRM(IDirect3DRM *iface)
@@ -73,6 +73,12 @@ static inline struct d3drm *impl_from_IDirect3DRM3(IDirect3DRM3 *iface)
     return CONTAINING_RECORD(iface, struct d3drm, IDirect3DRM3_iface);
 }
 
+static void d3drm_destroy(struct d3drm *d3drm)
+{
+    HeapFree(GetProcessHeap(), 0, d3drm);
+    TRACE("d3drm object %p is being destroyed.\n", d3drm);
+}
+
 static HRESULT WINAPI d3drm1_QueryInterface(IDirect3DRM *iface, REFIID riid, void **out)
 {
     struct d3drm *d3drm = impl_from_IDirect3DRM(iface);
@@ -106,22 +112,25 @@ static HRESULT WINAPI d3drm1_QueryInterface(IDirect3DRM *iface, REFIID riid, voi
 static ULONG WINAPI d3drm1_AddRef(IDirect3DRM *iface)
 {
     struct d3drm *d3drm = impl_from_IDirect3DRM(iface);
-    ULONG refcount = InterlockedIncrement(&d3drm->ref);
+    ULONG refcount = InterlockedIncrement(&d3drm->ref1);
 
     TRACE("%p increasing refcount to %u.\n", iface, refcount);
 
+    if (refcount == 1)
+        InterlockedIncrement(&d3drm->iface_count);
+
     return refcount;
 }
 
 static ULONG WINAPI d3drm1_Release(IDirect3DRM *iface)
 {
     struct d3drm *d3drm = impl_from_IDirect3DRM(iface);
-    ULONG refcount = InterlockedDecrement(&d3drm->ref);
+    ULONG refcount = InterlockedDecrement(&d3drm->ref1);
 
     TRACE("%p decreasing refcount to %u.\n", iface, refcount);
 
-    if (!refcount)
-        HeapFree(GetProcessHeap(), 0, d3drm);
+    if (!refcount && !InterlockedDecrement(&d3drm->iface_count))
+        d3drm_destroy(d3drm);
 
     return refcount;
 }
@@ -455,15 +464,27 @@ static HRESULT WINAPI d3drm2_QueryInterface(IDirect3DRM2 *iface, REFIID riid, vo
 static ULONG WINAPI d3drm2_AddRef(IDirect3DRM2 *iface)
 {
     struct d3drm *d3drm = impl_from_IDirect3DRM2(iface);
+    ULONG refcount = InterlockedIncrement(&d3drm->ref2);
+
+    TRACE("%p increasing refcount to %u.\n", iface, refcount);
+
+    if (refcount == 1)
+        InterlockedIncrement(&d3drm->iface_count);
 
-    return d3drm1_AddRef(&d3drm->IDirect3DRM_iface);
+    return refcount;
 }
 
 static ULONG WINAPI d3drm2_Release(IDirect3DRM2 *iface)
 {
     struct d3drm *d3drm = impl_from_IDirect3DRM2(iface);
+    ULONG refcount = InterlockedDecrement(&d3drm->ref2);
+
+    TRACE("%p decreasing refcount to %u.\n", iface, refcount);
 
-    return d3drm1_Release(&d3drm->IDirect3DRM_iface);
+    if (!refcount && !InterlockedDecrement(&d3drm->iface_count))
+        d3drm_destroy(d3drm);
+
+    return refcount;
 }
 
 static HRESULT WINAPI d3drm2_CreateObject(IDirect3DRM2 *iface,
@@ -804,15 +825,27 @@ static HRESULT WINAPI d3drm3_QueryInterface(IDirect3DRM3 *iface, REFIID riid, vo
 static ULONG WINAPI d3drm3_AddRef(IDirect3DRM3 *iface)
 {
     struct d3drm *d3drm = impl_from_IDirect3DRM3(iface);
+    ULONG refcount = InterlockedIncrement(&d3drm->ref3);
+
+    TRACE("%p increasing refcount to %u.\n", iface, refcount);
+
+    if (refcount == 1)
+        InterlockedIncrement(&d3drm->iface_count);
 
-    return d3drm1_AddRef(&d3drm->IDirect3DRM_iface);
+    return refcount;
 }
 
 static ULONG WINAPI d3drm3_Release(IDirect3DRM3 *iface)
 {
     struct d3drm *d3drm = impl_from_IDirect3DRM3(iface);
+    ULONG refcount = InterlockedDecrement(&d3drm->ref3);
+
+    TRACE("%p decreasing refcount to %u.\n", iface, refcount);
 
-    return d3drm1_Release(&d3drm->IDirect3DRM_iface);
+    if (!refcount && !InterlockedDecrement(&d3drm->iface_count))
+        d3drm_destroy(d3drm);
+
+    return refcount;
 }
 
 static HRESULT WINAPI d3drm3_CreateObject(IDirect3DRM3 *iface,
@@ -1488,7 +1521,8 @@ HRESULT WINAPI Direct3DRMCreate(IDirect3DRM **d3drm)
     object->IDirect3DRM_iface.lpVtbl = &d3drm1_vtbl;
     object->IDirect3DRM2_iface.lpVtbl = &d3drm2_vtbl;
     object->IDirect3DRM3_iface.lpVtbl = &d3drm3_vtbl;
-    object->ref = 1;
+    object->ref1 = 1;
+    object->iface_count = 1;
 
     *d3drm = &object->IDirect3DRM_iface;
 

dlls/d3drm/tests/d3drm.c

@@ -1761,8 +1761,8 @@ static void test_d3drm_qi(void)
 {
     static const struct qi_test tests[] =
     {
-        { &IID_IDirect3DRM3,               &IID_IDirect3DRM3,      S_OK,                            TRUE  },
-        { &IID_IDirect3DRM2,               &IID_IDirect3DRM2,      S_OK,                            TRUE  },
+        { &IID_IDirect3DRM3,               &IID_IDirect3DRM3,      S_OK,                            FALSE },
+        { &IID_IDirect3DRM2,               &IID_IDirect3DRM2,      S_OK,                            FALSE },
         { &IID_IDirect3DRM,                &IID_IDirect3DRM,       S_OK,                            FALSE },
         { &IID_IDirect3DRMDevice,          NULL,                   CLASS_E_CLASSNOTAVAILABLE,       FALSE },
         { &IID_IDirect3DRMObject,          NULL,                   CLASS_E_CLASSNOTAVAILABLE,       FALSE },