[PATCH 5/7] dmcompos: Remove the extraneous IUnknown from DMSignPostTrack

[Michael Stefaniuc]

Also lock/unlock the module only on creation/destruction of the object.
---
 dlls/dmcompos/signposttrack.c | 127 +++++++++++++++++-------------------------
 1 file changed, 50 insertions(+), 77 deletions(-)

diff --git a/dlls/dmcompos/signposttrack.c b/dlls/dmcompos/signposttrack.c
index c368874..e91f7bb 100644
--- a/dlls/dmcompos/signposttrack.c
+++ b/dlls/dmcompos/signposttrack.c
@@ -21,76 +21,16 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(dmcompos);
 
-static ULONG WINAPI IDirectMusicSignPostTrack_IUnknown_AddRef (LPUNKNOWN iface);
-static ULONG WINAPI IDirectMusicSignPostTrack_IPersistStream_AddRef (LPPERSISTSTREAM iface);
-
 /*****************************************************************************
  * IDirectMusicSignPostTrack implementation
  */
 typedef struct IDirectMusicSignPostTrack {
-    const IUnknownVtbl *UnknownVtbl;
     IDirectMusicTrack8 IDirectMusicTrack8_iface;
     const IPersistStreamVtbl *PersistStreamVtbl;
     LONG ref;
     DMUS_OBJECTDESC *pDesc;
 } IDirectMusicSignPostTrack;
 
-/* IDirectMusicSignPostTrack IUnknown part: */
-static HRESULT WINAPI IDirectMusicSignPostTrack_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj) {
-	ICOM_THIS_MULTI(IDirectMusicSignPostTrack, UnknownVtbl, iface);
-	TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
-
-	if (IsEqualIID (riid, &IID_IUnknown)) {
-		*ppobj = &This->UnknownVtbl;
-		IDirectMusicSignPostTrack_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
-		return S_OK;
-	} else if (IsEqualIID (riid, &IID_IDirectMusicTrack)
-	  || IsEqualIID (riid, &IID_IDirectMusicTrack8)) {
-		*ppobj = &This->IDirectMusicTrack8_iface;
-		IDirectMusicTrack8_AddRef(&This->IDirectMusicTrack8_iface);
-		return S_OK;
-	} else if (IsEqualIID (riid, &IID_IPersistStream)) {
-		*ppobj = &This->PersistStreamVtbl;
-		IDirectMusicSignPostTrack_IPersistStream_AddRef ((LPPERSISTSTREAM)&This->PersistStreamVtbl);
-		return S_OK;
-	}
-	
-	WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
-	return E_NOINTERFACE;
-}
-
-static ULONG WINAPI IDirectMusicSignPostTrack_IUnknown_AddRef (LPUNKNOWN iface) {
-	ICOM_THIS_MULTI(IDirectMusicSignPostTrack, UnknownVtbl, iface);
-        ULONG ref = InterlockedIncrement(&This->ref);
-
-	TRACE("(%p): AddRef from %d\n", This, ref - 1);
-	
-	DMCOMPOS_LockModule();
-	
-	return ref;
-}
-
-static ULONG WINAPI IDirectMusicSignPostTrack_IUnknown_Release (LPUNKNOWN iface) {
-	ICOM_THIS_MULTI(IDirectMusicSignPostTrack, UnknownVtbl, iface);
-	ULONG ref = InterlockedDecrement(&This->ref);
-
-	TRACE("(%p): ReleaseRef to %d\n", This, ref);
-	
-	if (ref == 0) {
-		HeapFree(GetProcessHeap(), 0, This);
-	}
-	
-	DMCOMPOS_UnlockModule();
-	
-	return ref;
-}
-
-static const IUnknownVtbl DirectMusicSignPostTrack_Unknown_Vtbl = {
-	IDirectMusicSignPostTrack_IUnknown_QueryInterface,
-	IDirectMusicSignPostTrack_IUnknown_AddRef,
-	IDirectMusicSignPostTrack_IUnknown_Release
-};
-
 /* IDirectMusicSignPostTrack IDirectMusicTrack8 part: */
 static inline IDirectMusicSignPostTrack *impl_from_IDirectMusicTrack8(IDirectMusicTrack8 *iface)
 {
@@ -98,22 +38,51 @@ static inline IDirectMusicSignPostTrack *impl_from_IDirectMusicTrack8(IDirectMus
 }
 
 static HRESULT WINAPI IDirectMusicTrack8Impl_QueryInterface(IDirectMusicTrack8 *iface, REFIID riid,
-        void **ppobj)
+        void **ret_iface)
 {
     IDirectMusicSignPostTrack *This = impl_from_IDirectMusicTrack8(iface);
-	return IDirectMusicSignPostTrack_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
+
+    TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ret_iface);
+
+    *ret_iface = NULL;
+
+    if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDirectMusicTrack) ||
+            IsEqualIID(riid, &IID_IDirectMusicTrack8))
+        *ret_iface = iface;
+    else if (IsEqualIID(riid, &IID_IPersistStream))
+        *ret_iface = &This->PersistStreamVtbl;
+    else {
+        WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ret_iface);
+        return E_NOINTERFACE;
+    }
+
+    IUnknown_AddRef((IUnknown*)*ret_iface);
+    return S_OK;
 }
 
 static ULONG WINAPI IDirectMusicTrack8Impl_AddRef(IDirectMusicTrack8 *iface)
 {
     IDirectMusicSignPostTrack *This = impl_from_IDirectMusicTrack8(iface);
-	return IDirectMusicSignPostTrack_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
+    LONG ref = InterlockedIncrement(&This->ref);
+
+    TRACE("(%p) ref=%d\n", This, ref);
+
+    return ref;
 }
 
 static ULONG WINAPI IDirectMusicTrack8Impl_Release(IDirectMusicTrack8 *iface)
 {
     IDirectMusicSignPostTrack *This = impl_from_IDirectMusicTrack8(iface);
-	return IDirectMusicSignPostTrack_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
+    LONG ref = InterlockedDecrement(&This->ref);
+
+    TRACE("(%p) ref=%d\n", This, ref);
+
+    if (!ref) {
+        HeapFree(GetProcessHeap(), 0, This);
+        DMCOMPOS_UnlockModule();
+    }
+
+    return ref;
 }
 
 static HRESULT WINAPI IDirectMusicTrack8Impl_Init(IDirectMusicTrack8 *iface,
@@ -272,17 +241,17 @@ static const IDirectMusicTrack8Vtbl dmtrack8_vtbl = {
 /* IDirectMusicSignPostTrack IPersistStream part: */
 static HRESULT WINAPI IDirectMusicSignPostTrack_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, LPVOID *ppobj) {
 	ICOM_THIS_MULTI(IDirectMusicSignPostTrack, PersistStreamVtbl, iface);
-	return IDirectMusicSignPostTrack_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
+	return IDirectMusicTrack8_QueryInterface(&This->IDirectMusicTrack8_iface, riid, ppobj);
 }
 
 static ULONG WINAPI IDirectMusicSignPostTrack_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
 	ICOM_THIS_MULTI(IDirectMusicSignPostTrack, PersistStreamVtbl, iface);
-	return IDirectMusicSignPostTrack_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
+	return IDirectMusicTrack8_AddRef(&This->IDirectMusicTrack8_iface);
 }
 
 static ULONG WINAPI IDirectMusicSignPostTrack_IPersistStream_Release (LPPERSISTSTREAM iface) {
 	ICOM_THIS_MULTI(IDirectMusicSignPostTrack, PersistStreamVtbl, iface);
-	return IDirectMusicSignPostTrack_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
+	return IDirectMusicTrack8_Release(&This->IDirectMusicTrack8_iface);
 }
 
 static HRESULT WINAPI IDirectMusicSignPostTrack_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
@@ -322,21 +291,25 @@ static const IPersistStreamVtbl DirectMusicSignPostTrack_PersistStream_Vtbl =
 /* for ClassFactory */
 HRESULT WINAPI create_dmsignposttrack(REFIID lpcGUID, void **ppobj)
 {
-	IDirectMusicSignPostTrack* track;
-	
-	track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSignPostTrack));
-	if (NULL == track) {
-		*ppobj = NULL;
-		return E_OUTOFMEMORY;
-	}
-	track->UnknownVtbl = &DirectMusicSignPostTrack_Unknown_Vtbl;
+    IDirectMusicSignPostTrack *track;
+    HRESULT hr;
+
+    track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*track));
+    if (!track) {
+        *ppobj = NULL;
+        return E_OUTOFMEMORY;
+    }
     track->IDirectMusicTrack8_iface.lpVtbl = &dmtrack8_vtbl;
 	track->PersistStreamVtbl = &DirectMusicSignPostTrack_PersistStream_Vtbl;
 	track->pDesc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DMUS_OBJECTDESC));
 	DM_STRUCT_INIT(track->pDesc);
 	track->pDesc->dwValidData |= DMUS_OBJ_CLASS;
 	track->pDesc->guidClass = CLSID_DirectMusicSignPostTrack;
-	track->ref = 0; /* will be inited by QueryInterface */
+    track->ref = 1;
+
+    DMCOMPOS_LockModule();
+    hr = IDirectMusicTrack8_QueryInterface(&track->IDirectMusicTrack8_iface, lpcGUID, ppobj);
+    IDirectMusicTrack8_Release(&track->IDirectMusicTrack8_iface);
 
-	return IDirectMusicSignPostTrack_IUnknown_QueryInterface ((LPUNKNOWN)&track->UnknownVtbl, lpcGUID, ppobj);
+    return hr;
 }
-- 
2.1.0