d3d8: Increment the reference count of the IDirect3D8 parent when creating a device.

dlls/d3d8/d3d8_private.h

@@ -177,7 +177,8 @@ struct IDirect3DDevice8Impl
     IDirect3DDevice8        IDirect3DDevice8_iface;
     struct wined3d_device_parent device_parent;
     LONG                    ref;
-    struct wined3d_device *wined3d_device;
+    struct wined3d_device  *wined3d_device;
+    IDirect3D8             *d3d_parent;
     struct                  d3d8_handle_table handle_table;
 
     /* FVF management */
@@ -189,7 +190,7 @@ struct IDirect3DDevice8Impl
     BOOL lost;
 };
 
-HRESULT device_init(IDirect3DDevice8Impl *device, struct wined3d *wined3d, UINT adapter,
+HRESULT device_init(IDirect3DDevice8Impl *device, IDirect3D8Impl *parent, struct wined3d *wined3d, UINT adapter,
         D3DDEVTYPE device_type, HWND focus_window, DWORD flags, D3DPRESENT_PARAMETERS *parameters) DECLSPEC_HIDDEN;
 
 /* ---------------- */

dlls/d3d8/device.c

@@ -301,6 +301,7 @@ static ULONG WINAPI IDirect3DDevice8Impl_Release(IDirect3DDevice8 *iface)
 
     if (ref == 0) {
         unsigned i;
+        IDirect3D8 *parent = This->d3d_parent;
 
         TRACE("Releasing wined3d device %p.\n", This->wined3d_device);
 
@@ -320,6 +321,8 @@ static ULONG WINAPI IDirect3DDevice8Impl_Release(IDirect3DDevice8 *iface)
         HeapFree(GetProcessHeap(), 0, This);
 
         wined3d_mutex_unlock();
+
+        IDirect3D8_Release(parent);
     }
     return ref;
 }
@@ -373,8 +376,6 @@ static HRESULT WINAPI IDirect3DDevice8Impl_ResourceManagerDiscardBytes(IDirect3D
 static HRESULT WINAPI IDirect3DDevice8Impl_GetDirect3D(IDirect3DDevice8 *iface, IDirect3D8 **ppD3D8)
 {
     IDirect3DDevice8Impl *This = impl_from_IDirect3DDevice8(iface);
-    struct wined3d *wined3d;
-    HRESULT hr;
 
     TRACE("iface %p, d3d8 %p.\n", iface, ppD3D8);
 
@@ -382,24 +383,7 @@ static HRESULT WINAPI IDirect3DDevice8Impl_GetDirect3D(IDirect3DDevice8 *iface,
         return D3DERR_INVALIDCALL;
     }
 
-    wined3d_mutex_lock();
+    return IDirect3D8_QueryInterface(This->d3d_parent, &IID_IDirect3D8, (void **)ppD3D8);
-    hr = wined3d_device_get_wined3d(This->wined3d_device, &wined3d);
-    if (SUCCEEDED(hr) && wined3d)
-    {
-        *ppD3D8 = wined3d_get_parent(wined3d);
-        IDirect3D8_AddRef(*ppD3D8);
-        wined3d_decref(wined3d);
-    }
-    else
-    {
-        FIXME("Call to IWineD3DDevice_GetDirect3D failed\n");
-        *ppD3D8 = NULL;
-    }
-    wined3d_mutex_unlock();
-
-    TRACE("(%p) returning %p\n",This , *ppD3D8);
-
-    return hr;
 }
 
 static HRESULT WINAPI IDirect3DDevice8Impl_GetDeviceCaps(IDirect3DDevice8 *iface, D3DCAPS8 *pCaps)
@@ -3095,7 +3079,7 @@ static void setup_fpu(void)
 #endif
 }
 
-HRESULT device_init(IDirect3DDevice8Impl *device, struct wined3d *wined3d, UINT adapter,
+HRESULT device_init(IDirect3DDevice8Impl *device, IDirect3D8Impl *parent, struct wined3d *wined3d, UINT adapter,
         D3DDEVTYPE device_type, HWND focus_window, DWORD flags, D3DPRESENT_PARAMETERS *parameters)
 {
     WINED3DPRESENT_PARAMETERS wined3d_parameters;
@@ -3209,6 +3193,9 @@ HRESULT device_init(IDirect3DDevice8Impl *device, struct wined3d *wined3d, UINT
         goto err;
     }
 
+    device->d3d_parent = &parent->IDirect3D8_iface;
+    IDirect3D8_AddRef(device->d3d_parent);
+
     return D3D_OK;
 
 err:

dlls/d3d8/directx.c

@@ -368,7 +368,7 @@ static HRESULT WINAPI IDirect3D8Impl_CreateDevice(IDirect3D8 *iface, UINT adapte
         return E_OUTOFMEMORY;
     }
 
-    hr = device_init(object, This->WineD3D, adapter, device_type, focus_window, flags, parameters);
+    hr = device_init(object, This, This->WineD3D, adapter, device_type, focus_window, flags, parameters);
     if (FAILED(hr))
     {
         WARN("Failed to initialize device, hr %#x.\n", hr);

dlls/d3d8/tests/device.c

@@ -343,6 +343,7 @@ static void test_refcount(void)
     HRESULT                      hr;
     HWND                         hwnd               = NULL;
     IDirect3D8                  *pD3d               = NULL;
+    IDirect3D8                  *pD3d2              = NULL;
     IDirect3DDevice8            *pDevice            = NULL;
     IDirect3DVertexBuffer8      *pVertexBuffer      = NULL;
     IDirect3DIndexBuffer8       *pIndexBuffer       = NULL;
@@ -381,6 +382,8 @@ static void test_refcount(void)
     ok(hwnd != NULL, "Failed to create window\n");
     if (!pD3d || !hwnd) goto cleanup;
 
+    CHECK_REFCOUNT( pD3d, 1 );
+
     IDirect3D8_GetAdapterDisplayMode( pD3d, D3DADAPTER_DEFAULT, &d3ddm );
     ZeroMemory( &d3dpp, sizeof(d3dpp) );
     d3dpp.Windowed         = TRUE;
@@ -401,6 +404,15 @@ static void test_refcount(void)
     refcount = get_refcount( (IUnknown *)pDevice );
     ok(refcount == 1, "Invalid device RefCount %d\n", refcount);
 
+    CHECK_REFCOUNT( pD3d, 2 );
+
+    hr = IDirect3DDevice8_GetDirect3D(pDevice, &pD3d2);
+    CHECK_CALL( hr, "GetDirect3D", pDevice, refcount );
+
+    ok(pD3d2 == pD3d, "Expected IDirect3D8 pointers to be equal\n");
+    CHECK_REFCOUNT( pD3d, 3 );
+    CHECK_RELEASE_REFCOUNT( pD3d, 2 );
+
     /**
      * Check refcount of implicit surfaces. Findings:
      *   - the container is the device