Jesse Allen : ddraw: Fix for DDSURFACEDESC param in CreateSurface.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 52296dbdbf5b2137f19ae0582bab6bcba2317bdb
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=52296dbdbf5b2137f19ae0582b...

Author: Jesse Allen <the3dfxdude(a)gmail.com>
Date:   Tue Oct 10 09:06:28 2006 -0700

ddraw: Fix for DDSURFACEDESC param in CreateSurface.

---

 dlls/ddraw/ddraw.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index 341d936..5b72aa5 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -2136,7 +2136,8 @@ IDirectDrawImpl_CreateSurface(IDirectDra
     }
 
     /* According to the msdn this flag is ignored by CreateSurface */
-    DDSD->ddsCaps.dwCaps2 &= ~DDSCAPS2_MIPMAPSUBLEVEL;
+    if (DDSD->dwSize >= sizeof(DDSURFACEDESC2))
+        DDSD->ddsCaps.dwCaps2 &= ~DDSCAPS2_MIPMAPSUBLEVEL;
 
     /* Modify some flags */
     memset(&desc2, 0, sizeof(desc2));
@@ -2314,7 +2315,7 @@ IDirectDrawImpl_CreateSurface(IDirectDra
         desc2.ddsCaps.dwCaps |= DDSCAPS_BACKBUFFER;
     }
     /* Set the DDSCAPS2_MIPMAPSUBLEVEL flag on mipmap sublevels according to the msdn */
-    if(DDSD->ddsCaps.dwCaps & DDSCAPS_MIPMAP)
+    if((DDSD->ddsCaps.dwCaps & DDSCAPS_MIPMAP)&&(DDSD->dwSize >= sizeof(DDSURFACEDESC2)))
     {
         desc2.ddsCaps.dwCaps2 |= DDSCAPS2_MIPMAPSUBLEVEL;
     }