Henri Verbeet : ddraw: Get rid of the DDSCAPS_BACKBUFFER validation in ddraw_surface_create().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8a9fdb567ed5a2a76cef0e7ba47d3e9bfa04f9e5
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=8a9fdb567ed5a2a76cef0e7ba4...

Author: Henri Verbeet 
Date:   Mon Dec  2 12:07:36 2013 +0100

ddraw: Get rid of the DDSCAPS_BACKBUFFER validation in ddraw_surface_create().

All callers except ddraw1_CreateSurface() already have a stricter check
themselves.

---

dlls/ddraw/ddraw.c   |    8 ++++++++
 dlls/ddraw/surface.c |    8 --------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index d2d762d..7fca84c 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -2924,6 +2924,14 @@ static HRESULT WINAPI ddraw1_CreateSurface(IDirectDraw *iface,
     /* Remove front buffer flag, this causes failure in v7, and its added to normal
      * primaries anyway. */
     surface_desc->ddsCaps.dwCaps &= ~DDSCAPS_FRONTBUFFER;
+    if ((surface_desc->ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_BACKBUFFER))
+            == (DDSCAPS_PRIMARYSURFACE | DDSCAPS_BACKBUFFER))
+    {
+        WARN("Application tried to create an explicit front or back buffer.\n");
+        wined3d_mutex_unlock();
+        return DDERR_INVALIDCAPS;
+    }
+
     DDSD_to_DDSD2(surface_desc, &surface_desc2);
     hr = ddraw_surface_create(ddraw, &surface_desc2, &impl, outer_unknown, 1);
     wined3d_mutex_unlock();
diff --git a/dlls/ddraw/surface.c b/dlls/ddraw/surface.c
index 29385b7..37fd096 100644
--- a/dlls/ddraw/surface.c
+++ b/dlls/ddraw/surface.c
@@ -5640,14 +5640,6 @@ HRESULT ddraw_surface_create(struct ddraw *ddraw, const DDSURFACEDESC2 *surface_
         return DDERR_NOEXCLUSIVEMODE;
     }

-    if ((desc->ddsCaps.dwCaps & (DDSCAPS_BACKBUFFER | DDSCAPS_PRIMARYSURFACE))
-            == (DDSCAPS_BACKBUFFER | DDSCAPS_PRIMARYSURFACE))
-    {
-        WARN("Tried to create a back buffer surface.\n");
-        HeapFree(GetProcessHeap(), 0, texture);
-        return DDERR_INVALIDCAPS;
-    }
-
     /* This is a special case in ddrawex, but not allowed in ddraw. */
     if ((desc->ddsCaps.dwCaps & (DDSCAPS_VIDEOMEMORY | DDSCAPS_SYSTEMMEMORY))
             == (DDSCAPS_VIDEOMEMORY | DDSCAPS_SYSTEMMEMORY))