ddraw: Use unsafe_impl_from_IDirect3DDevice3 for application provided interfaces.

dlls/ddraw/ddraw_private.h

@@ -342,6 +342,7 @@ static inline IDirect3DDeviceImpl *device_from_device3(IDirect3DDevice3 *iface)
 
 IDirect3DDeviceImpl *unsafe_impl_from_IDirect3DDevice(IDirect3DDevice *iface) DECLSPEC_HIDDEN;
 IDirect3DDeviceImpl *unsafe_impl_from_IDirect3DDevice2(IDirect3DDevice2 *iface) DECLSPEC_HIDDEN;
+IDirect3DDeviceImpl *unsafe_impl_from_IDirect3DDevice3(IDirect3DDevice3 *iface) DECLSPEC_HIDDEN;
 
 /*****************************************************************************
  * IDirectDrawClipper implementation structure

dlls/ddraw/device.c

@@ -6746,6 +6746,13 @@ static const struct IDirect3DDeviceVtbl d3d_device1_vtbl =
     IDirect3DDeviceImpl_1_GetDirect3D
 };
 
+IDirect3DDeviceImpl *unsafe_impl_from_IDirect3DDevice3(IDirect3DDevice3 *iface)
+{
+    if (!iface) return NULL;
+    assert(iface->lpVtbl == &d3d_device3_vtbl);
+    return CONTAINING_RECORD(iface, IDirect3DDeviceImpl, IDirect3DDevice3_vtbl);
+}
+
 IDirect3DDeviceImpl *unsafe_impl_from_IDirect3DDevice2(IDirect3DDevice2 *iface)
 {
     if (!iface) return NULL;

dlls/ddraw/material.c

@@ -295,18 +295,18 @@ static HRESULT WINAPI IDirect3DMaterialImpl_GetMaterial(IDirect3DMaterial3 *ifac
  *
  *****************************************************************************/
 static HRESULT WINAPI IDirect3DMaterialImpl_GetHandle(IDirect3DMaterial3 *iface,
-        IDirect3DDevice3 *lpDirect3DDevice3, D3DMATERIALHANDLE *lpHandle)
+        IDirect3DDevice3 *device, D3DMATERIALHANDLE *handle)
 {
     IDirect3DMaterialImpl *This = impl_from_IDirect3DMaterial3(iface);
-    IDirect3DDeviceImpl *device = device_from_device3(lpDirect3DDevice3);
+    IDirect3DDeviceImpl *device_impl = unsafe_impl_from_IDirect3DDevice3(device);
 
-    TRACE("iface %p, device %p, handle %p.\n", iface, lpDirect3DDevice3, lpHandle);
+    TRACE("iface %p, device %p, handle %p.\n", iface, device, handle);
 
     EnterCriticalSection(&ddraw_cs);
-    This->active_device = device;
+    This->active_device = device_impl;
     if(!This->Handle)
     {
-        DWORD h = ddraw_allocate_handle(&device->handle_table, This, DDRAW_HANDLE_MATERIAL);
+        DWORD h = ddraw_allocate_handle(&device_impl->handle_table, This, DDRAW_HANDLE_MATERIAL);
         if (h == DDRAW_INVALID_HANDLE)
         {
             ERR("Failed to allocate a material handle.\n");
@@ -316,8 +316,8 @@ static HRESULT WINAPI IDirect3DMaterialImpl_GetHandle(IDirect3DMaterial3 *iface,
 
         This->Handle = h + 1;
     }
-    *lpHandle = This->Handle;
-    TRACE(" returning handle %08x.\n", *lpHandle);
+    *handle = This->Handle;
+    TRACE(" returning handle %08x.\n", *handle);
     LeaveCriticalSection(&ddraw_cs);
 
     return D3D_OK;

dlls/ddraw/vertexbuffer.c

@@ -351,17 +351,17 @@ static HRESULT WINAPI IDirect3DVertexBufferImpl_ProcessVertices(IDirect3DVertexB
 
 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_ProcessVertices(IDirect3DVertexBuffer *iface,
         DWORD VertexOp, DWORD DestIndex, DWORD Count, IDirect3DVertexBuffer *SrcBuffer,
-        DWORD SrcIndex, IDirect3DDevice3 *D3DDevice, DWORD Flags)
+        DWORD SrcIndex, IDirect3DDevice3 *device, DWORD Flags)
 {
     IDirect3DVertexBufferImpl *This = impl_from_IDirect3DVertexBuffer(iface);
     IDirect3DVertexBufferImpl *Src = unsafe_impl_from_IDirect3DVertexBuffer(SrcBuffer);
-    IDirect3DDeviceImpl *D3D = D3DDevice ? device_from_device3(D3DDevice) : NULL;
+    IDirect3DDeviceImpl *device_impl = unsafe_impl_from_IDirect3DDevice3(device);
 
     TRACE("iface %p, vertex_op %#x, dst_idx %u, count %u, src_buffer %p, src_idx %u, device %p, flags %#x.\n",
-            iface, VertexOp, DestIndex, Count, SrcBuffer, SrcIndex, D3DDevice, Flags);
+            iface, VertexOp, DestIndex, Count, SrcBuffer, SrcIndex, device, Flags);
 
     return IDirect3DVertexBuffer7_ProcessVertices(&This->IDirect3DVertexBuffer7_iface, VertexOp,
-            DestIndex, Count, &Src->IDirect3DVertexBuffer7_iface, SrcIndex, (IDirect3DDevice7 *)D3D,
+            DestIndex, Count, &Src->IDirect3DVertexBuffer7_iface, SrcIndex, (IDirect3DDevice7 *)device_impl,
             Flags);
 }
 
@@ -451,15 +451,15 @@ static HRESULT WINAPI IDirect3DVertexBufferImpl_Optimize(IDirect3DVertexBuffer7
 }
 
 static HRESULT WINAPI IDirect3DVertexBufferImpl_1_Optimize(IDirect3DVertexBuffer *iface,
-        IDirect3DDevice3 *D3DDevice, DWORD Flags)
+        IDirect3DDevice3 *device, DWORD Flags)
 {
     IDirect3DVertexBufferImpl *This = impl_from_IDirect3DVertexBuffer(iface);
-    IDirect3DDeviceImpl *D3D = D3DDevice ? device_from_device3(D3DDevice) : NULL;
+    IDirect3DDeviceImpl *device_impl = unsafe_impl_from_IDirect3DDevice3(device);
 
-    TRACE("iface %p, device %p, flags %#x.\n", iface, D3DDevice, Flags);
+    TRACE("iface %p, device %p, flags %#x.\n", iface, device, Flags);
 
     return IDirect3DVertexBuffer7_Optimize(&This->IDirect3DVertexBuffer7_iface,
-            (IDirect3DDevice7 *)D3D, Flags);
+            (IDirect3DDevice7 *)device_impl, Flags);
 }
 
 /*****************************************************************************