From 686b2c738b84e91ddc63378fb5ad20589b8b4198 Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Fri, 7 Oct 2022 08:13:07 +0200
Subject: [PATCH] don't allow to create overlay surface

---
 src/ddsurface.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/ddsurface.c b/src/ddsurface.c
index ecc6d5b..a684095 100644
--- a/src/ddsurface.c
+++ b/src/ddsurface.c
@@ -1233,6 +1233,9 @@ HRESULT dd_CreateSurface(
     dbg_dump_dds_flags(lpDDSurfaceDesc->dwFlags);
     dbg_dump_dds_caps(lpDDSurfaceDesc->ddsCaps.dwCaps);
 
+    if (lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_OVERLAY)
+        return DDERR_UNSUPPORTED;
+
     if ((lpDDSurfaceDesc->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE) &&
         g_ddraw->primary &&
         g_ddraw->primary->width == g_ddraw->width &&