From 62c6b36f0889eae10887bd5ba012e89b41b0e71c Mon Sep 17 00:00:00 2001
From: Jonas Herzig <jonas@spark-squared.com>
Date: Fri, 8 May 2020 10:17:49 +0200
Subject: [PATCH] Fix crash when minimizing on Windows during rendering (fixes
 #140)

Hopefully, haven't actually tried it cause, you know, Windows (and minimizing
with just xfwm4 doesn't exhibit the same behavior).
---
 .../replaymod/render/rendering/VideoRenderer.java    | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/replaymod/render/rendering/VideoRenderer.java b/src/main/java/com/replaymod/render/rendering/VideoRenderer.java
index c6e314fc..f2c0f575 100644
--- a/src/main/java/com/replaymod/render/rendering/VideoRenderer.java
+++ b/src/main/java/com/replaymod/render/rendering/VideoRenderer.java
@@ -557,10 +557,18 @@ public class VideoRenderer implements RenderInfo {
 
     private boolean displaySizeChanged() {
         //#if MC>=11400
-        return displayWidth != getWindow(mc).getWidth() || displayHeight != getWindow(mc).getHeight();
+        int realWidth = getWindow(mc).getWidth();
+        int realHeight = getWindow(mc).getHeight();
         //#else
-        //$$ return displayWidth != Display.getWidth() || displayHeight != Display.getHeight();
+        //$$ int realWidth = Display.getWidth();
+        //$$ int realHeight = Display.getHeight();
         //#endif
+        if (realWidth == 0 || realHeight == 0) {
+            // These can be zero on Windows if minimized.
+            // Creating zero-sized framebuffers however will throw an error, so we never want to switch to zero values.
+            return false;
+        }
+        return displayWidth != realWidth || displayHeight != realHeight;
     }
 
     private void updateDisplaySize() {