ddraw: Rename surface_from_texture2 to impl_from_IDirect3DTexture2.

dlls/ddraw/ddraw_private.h

@@ -219,9 +219,9 @@ static inline IDirectDrawSurfaceImpl *impl_from_IDirect3DTexture(IDirect3DTextur
     return CONTAINING_RECORD(iface, IDirectDrawSurfaceImpl, IDirect3DTexture_iface);
 }
 
-static inline IDirectDrawSurfaceImpl *surface_from_texture2(IDirect3DTexture2 *iface)
+static inline IDirectDrawSurfaceImpl *impl_from_IDirect3DTexture2(IDirect3DTexture2 *iface)
 {
-    return (IDirectDrawSurfaceImpl *)((char*)iface - FIELD_OFFSET(IDirectDrawSurfaceImpl, IDirect3DTexture2_vtbl));
+    return CONTAINING_RECORD(iface, IDirectDrawSurfaceImpl, IDirect3DTexture2_vtbl);
 }
 
 static inline IDirectDrawSurfaceImpl *impl_from_IDirectDrawSurface(IDirectDrawSurface *iface)

dlls/ddraw/surface.c

@@ -201,7 +201,7 @@ static HRESULT WINAPI ddraw_gamma_control_QueryInterface(IDirectDrawGammaControl
 
 static HRESULT WINAPI d3d_texture2_QueryInterface(IDirect3DTexture2 *iface, REFIID riid, void **object)
 {
-    IDirectDrawSurfaceImpl *This = surface_from_texture2(iface);
+    IDirectDrawSurfaceImpl *This = impl_from_IDirect3DTexture2(iface);
     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 
     return ddraw_surface7_QueryInterface(&This->IDirectDrawSurface7_iface, riid, object);
@@ -332,7 +332,7 @@ static ULONG WINAPI ddraw_gamma_control_AddRef(IDirectDrawGammaControl *iface)
 
 static ULONG WINAPI d3d_texture2_AddRef(IDirect3DTexture2 *iface)
 {
-    IDirectDrawSurfaceImpl *This = surface_from_texture2(iface);
+    IDirectDrawSurfaceImpl *This = impl_from_IDirect3DTexture2(iface);
     TRACE("iface %p.\n", iface);
 
     return ddraw_surface1_AddRef(&This->IDirectDrawSurface_iface);
@@ -615,7 +615,7 @@ static ULONG WINAPI ddraw_gamma_control_Release(IDirectDrawGammaControl *iface)
 
 static ULONG WINAPI d3d_texture2_Release(IDirect3DTexture2 *iface)
 {
-    IDirectDrawSurfaceImpl *This = surface_from_texture2(iface);
+    IDirectDrawSurfaceImpl *This = impl_from_IDirect3DTexture2(iface);
     TRACE("iface %p.\n", iface);
 
     return ddraw_surface1_Release(&This->IDirectDrawSurface_iface);
@@ -4491,7 +4491,7 @@ static HRESULT WINAPI d3d_texture1_Unload(IDirect3DTexture *iface)
 static HRESULT WINAPI d3d_texture2_GetHandle(IDirect3DTexture2 *iface,
         IDirect3DDevice2 *device, D3DTEXTUREHANDLE *handle)
 {
-    IDirectDrawSurfaceImpl *surface = surface_from_texture2(iface);
+    IDirectDrawSurfaceImpl *surface = impl_from_IDirect3DTexture2(iface);
 
     TRACE("iface %p, device %p, handle %p.\n", iface, device, handle);
 
@@ -4571,7 +4571,7 @@ static IDirectDrawSurfaceImpl *get_sub_mimaplevel(IDirectDrawSurfaceImpl *surfac
  *****************************************************************************/
 static HRESULT WINAPI d3d_texture2_Load(IDirect3DTexture2 *iface, IDirect3DTexture2 *src_texture)
 {
-    IDirectDrawSurfaceImpl *dst_surface = surface_from_texture2(iface);
+    IDirectDrawSurfaceImpl *dst_surface = impl_from_IDirect3DTexture2(iface);
     IDirectDrawSurfaceImpl *src_surface = unsafe_impl_from_IDirect3DTexture2(src_texture);
     HRESULT hr;