Ričardas Barkauskas : ddraw: Fix ddraw4_EnumSurfaces to pass correct iface in callbacks.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 4c0c0d3aeb4a411d2f99ae9f953b46c09f682b60
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=4c0c0d3aeb4a411d2f99ae9f953b46c09f682b60

Author: Ričardas Barkauskas <rbarkauskas at codeweavers.com>
Date:   Sun Jun 12 13:38:32 2011 +0300

ddraw: Fix ddraw4_EnumSurfaces to pass correct iface in callbacks.

---

 dlls/ddraw/ddraw.c |   24 ++++++++++++++++++++++--
 1 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index f6d4191..cadc444 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -3803,12 +3803,28 @@ static BOOL ddraw_match_surface_desc(const DDSURFACEDESC2 *requested, const DDSU
 #undef DDENUMSURFACES_SEARCHTYPE
 #undef DDENUMSURFACES_MATCHTYPE
 
+struct surfacescallback2_context
+{
+    LPDDENUMSURFACESCALLBACK2 func;
+    void *context;
+};
+
 struct surfacescallback_context
 {
     LPDDENUMSURFACESCALLBACK func;
     void *context;
 };
 
+static HRESULT CALLBACK EnumSurfacesCallback2Thunk(IDirectDrawSurface7 *surface,
+        DDSURFACEDESC2 *surface_desc, void *context)
+{
+    IDirectDrawSurfaceImpl *surface_impl = impl_from_IDirectDrawSurface7(surface);
+    struct surfacescallback2_context *cbcontext = context;
+
+    return cbcontext->func(&surface_impl->IDirectDrawSurface4_iface,
+            surface_desc, cbcontext->context);
+}
+
 static HRESULT CALLBACK EnumSurfacesCallbackThunk(IDirectDrawSurface7 *surface,
         DDSURFACEDESC2 *surface_desc, void *context)
 {
@@ -3890,12 +3906,16 @@ static HRESULT WINAPI ddraw4_EnumSurfaces(IDirectDraw4 *iface, DWORD flags,
         DDSURFACEDESC2 *surface_desc, void *context, LPDDENUMSURFACESCALLBACK2 callback)
 {
     IDirectDrawImpl *This = impl_from_IDirectDraw4(iface);
+    struct surfacescallback2_context cbcontext;
 
     TRACE("iface %p, flags %#x, surface_desc %p, context %p, callback %p.\n",
             iface, flags, surface_desc, context, callback);
 
-    return ddraw7_EnumSurfaces(&This->IDirectDraw7_iface, flags, surface_desc, context,
-            (LPDDENUMSURFACESCALLBACK7)callback);
+    cbcontext.func = callback;
+    cbcontext.context = context;
+
+    return ddraw7_EnumSurfaces(&This->IDirectDraw7_iface, flags, (DDSURFACEDESC2 *)surface_desc,
+            &cbcontext, EnumSurfacesCallback2Thunk);
 }
 
 static HRESULT WINAPI ddraw3_EnumSurfaces(IDirectDraw3 *iface, DWORD flags,