From d82754ec5161eeb484dd6dbef9e23f3af04f35fe Mon Sep 17 00:00:00 2001
From: Brad Harding <brad@doomretro.com>
Date: Sat, 1 Aug 2015 13:16:34 +1000
Subject: [PATCH] Don't show display name if there is none

In Windows 10 display 1 returns a display name of "0".
---
 src/i_video.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/i_video.c b/src/i_video.c
index 5aa418342f..18fa22dda9 100644
--- a/src/i_video.c
+++ b/src/i_video.c
@@ -886,8 +886,15 @@ static void SetVideoMode(dboolean output)
         displayindex = vid_display_default - 1;
     }
     if (output)
-        C_Output("Using display %i of %i called \"%s\".",
-            displayindex + 1, numdisplays, SDL_GetDisplayName(displayindex));
+    {
+        const char      *displayname = SDL_GetDisplayName(displayindex);
+
+        if (strlen(displayname) > 1)
+            C_Output("Using display %i of %i called \"%s\".", displayindex + 1, numdisplays,
+                displayname);
+        else
+            C_Output("Using display %i of %i.", displayindex + 1, numdisplays);
+    }
 
     if (vid_vsync)
         flags |= SDL_RENDERER_PRESENTVSYNC;