X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsystem.c;h=e83df10bb1250a83e405380cd3189c77d8006bd4;hb=157fb76461d332a22233e6664cd294d7db5d3558;hp=c1abb8a41ab1d11d7d43f34f5c128dea14694e99;hpb=3eeac0d62d19cbdd926ed329ffb70a3105a94d27;p=rocksndiamonds.git

diff --git a/src/libgame/system.c b/src/libgame/system.c
index c1abb8a4..e83df10b 100644
--- a/src/libgame/system.c
+++ b/src/libgame/system.c
@@ -121,7 +121,7 @@ void InitNetworkInfo(boolean enabled, boolean connected, boolean serveronly,
   network.is_server_thread = FALSE;
 }
 
-void InitRuntimeInfo()
+void InitRuntimeInfo(void)
 {
 #if defined(HAS_TOUCH_DEVICE)
   runtime.uses_touch_device = TRUE;
@@ -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;