From 439f71e192f94ceec6148609b12c5543592bc539 Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Wed, 5 May 2021 16:58:40 +0200
Subject: [PATCH] set DDSCAPS_VIDEOMEMORY only for backbuffer and primary

---
 src/ddsurface.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/ddsurface.c b/src/ddsurface.c
index 1a57eb0..85db767 100644
--- a/src/ddsurface.c
+++ b/src/ddsurface.c
@@ -621,7 +621,12 @@ HRESULT dds_GetSurfaceDesc(IDirectDrawSurfaceImpl *This, LPDDSURFACEDESC lpDDSur
         lpDDSurfaceDesc->ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
         lpDDSurfaceDesc->ddpfPixelFormat.dwFlags = DDPF_RGB;
         lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount = This->bpp;
-        lpDDSurfaceDesc->ddsCaps.dwCaps = This->caps | DDSCAPS_VIDEOMEMORY;
+        lpDDSurfaceDesc->ddsCaps.dwCaps = This->caps;
+
+        if ((This->caps & DDSCAPS_PRIMARYSURFACE) || (This->caps & DDSCAPS_BACKBUFFER))
+        {
+            lpDDSurfaceDesc->ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
+        }
 
         if (This->bpp == 8)
         {