From: Holger Schemel <info@artsoft.org>
Date: Fri, 23 Feb 2024 00:01:39 +0000 (+0100)
Subject: fixed crash bug with masked blitting in headless mode
X-Git-Tag: 4.4.0.0-test-1~313
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=a863de3d5f7a903a1ec68d245861ce0fdf577323;p=rocksndiamonds.git

fixed crash bug with masked blitting in headless mode
---

diff --git a/src/libgame/system.c b/src/libgame/system.c
index f824ac51..e83df10b 100644
--- a/src/libgame/system.c
+++ b/src/libgame/system.c
@@ -938,6 +938,12 @@ void BlitBitmapMasked(Bitmap *src_bitmap, Bitmap *dst_bitmap,
 		      int src_x, int src_y, int width, int height,
 		      int dst_x, int dst_y)
 {
+  if (program.headless)
+    return;
+
+  if (src_bitmap == NULL || dst_bitmap == NULL)
+    return;
+
   if (DrawingDeactivated(dst_x, dst_y))
     return;