From 6e7e6f9c9ed3367ecaa80f78a512187a7ae95eb4 Mon Sep 17 00:00:00 2001
From: Samuel Mannehed <samuel@cendio.se>
Date: Fri, 8 Mar 2019 16:30:43 +0100
Subject: [PATCH] Add check for bad values for Display.autoscale()

---
 core/display.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/display.js b/core/display.js
index 73e03873..25a95954 100644
--- a/core/display.js
+++ b/core/display.js
@@ -495,6 +495,11 @@ export default class Display {
     }
 
     autoscale(containerWidth, containerHeight) {
+        if (containerWidth === 0 || containerHeight === 0) {
+            Log.Warn("Autoscale doesn't work when width or height is zero");
+            return;
+        }
+
         const vp = this._viewportLoc;
         const targetAspectRatio = containerWidth / containerHeight;
         const fbAspectRatio = vp.w / vp.h;