ddraw: Use unsafe_impl_from_IDirect3DTexture2 for application provided interfaces.

dlls/ddraw/ddraw_private.h

@@ -254,6 +254,7 @@ IDirectDrawSurfaceImpl *unsafe_impl_from_IDirectDrawSurface4(IDirectDrawSurface4
 IDirectDrawSurfaceImpl *unsafe_impl_from_IDirectDrawSurface7(IDirectDrawSurface7 *iface) DECLSPEC_HIDDEN;
 
 IDirectDrawSurfaceImpl *unsafe_impl_from_IDirect3DTexture(IDirect3DTexture *iface) DECLSPEC_HIDDEN;
+IDirectDrawSurfaceImpl *unsafe_impl_from_IDirect3DTexture2(IDirect3DTexture2 *iface) DECLSPEC_HIDDEN;
 
 /* Get the number of bytes per pixel for a given surface */
 #define PFGET_BPP(pf) (pf.dwFlags&DDPF_PALETTEINDEXED8?1:((pf.dwRGBBitCount+7)/8))

dlls/ddraw/device.c

@@ -544,8 +544,8 @@ IDirect3DDeviceImpl_2_SwapTextureHandles(IDirect3DDevice2 *iface,
                                          IDirect3DTexture2 *Tex2)
 {
     IDirect3DDeviceImpl *This = device_from_device2(iface);
-    IDirectDrawSurfaceImpl *surf1 = surface_from_texture2(Tex1);
-    IDirectDrawSurfaceImpl *surf2 = surface_from_texture2(Tex2);
+    IDirectDrawSurfaceImpl *surf1 = unsafe_impl_from_IDirect3DTexture2(Tex1);
+    IDirectDrawSurfaceImpl *surf2 = unsafe_impl_from_IDirect3DTexture2(Tex2);
     DWORD h1, h2;
 
     TRACE("iface %p, tex1 %p, tex2 %p.\n", iface, Tex1, Tex2);
@@ -4564,7 +4564,7 @@ IDirect3DDeviceImpl_3_SetTexture(IDirect3DDevice3 *iface,
                                  IDirect3DTexture2 *Texture2)
 {
     IDirect3DDeviceImpl *This = device_from_device3(iface);
-    IDirectDrawSurfaceImpl *tex = Texture2 ? surface_from_texture2(Texture2) : NULL;
+    IDirectDrawSurfaceImpl *tex = unsafe_impl_from_IDirect3DTexture2(Texture2);
     DWORD texmapblend;
     HRESULT hr;
 

dlls/ddraw/surface.c

@@ -4572,7 +4572,7 @@ 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 *src_surface = surface_from_texture2(src_texture);
+    IDirectDrawSurfaceImpl *src_surface = unsafe_impl_from_IDirect3DTexture2(src_texture);
     HRESULT hr;
 
     TRACE("iface %p, src_texture %p.\n", iface, src_texture);
@@ -5030,6 +5030,13 @@ IDirectDrawSurfaceImpl *unsafe_impl_from_IDirectDrawSurface(IDirectDrawSurface *
     return CONTAINING_RECORD(iface, IDirectDrawSurfaceImpl, IDirectDrawSurface_iface);
 }
 
+IDirectDrawSurfaceImpl *unsafe_impl_from_IDirect3DTexture2(IDirect3DTexture2 *iface)
+{
+    if (!iface) return NULL;
+    assert(iface->lpVtbl == &d3d_texture2_vtbl);
+    return CONTAINING_RECORD(iface, IDirectDrawSurfaceImpl, IDirect3DTexture2_vtbl);
+}
+
 IDirectDrawSurfaceImpl *unsafe_impl_from_IDirect3DTexture(IDirect3DTexture *iface)
 {
     if (!iface) return NULL;