From 29bde8cd74bf6640058143aeafb0281c1b3a027f Mon Sep 17 00:00:00 2001
From: Max <ealataur@gmail.com>
Date: Tue, 29 Oct 2019 10:58:59 +0300
Subject: [PATCH] Fix crash on exit or resume on iOS 13

Fixes #7966.
---
 platform/iphone/gl_view.mm | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/platform/iphone/gl_view.mm b/platform/iphone/gl_view.mm
index 2ac158e6d37..4e6b8e1ada1 100644
--- a/platform/iphone/gl_view.mm
+++ b/platform/iphone/gl_view.mm
@@ -340,6 +340,7 @@ static void clear_touches() {
 	[EAGLContext setCurrentContext:context];
 	[self destroyFramebuffer];
 	[self createFramebuffer];
+	[self drawView];
 }
 
 - (BOOL)createFramebuffer {
@@ -455,22 +456,22 @@ static void clear_touches() {
 
 // Updates the OpenGL view when the timer fires
 - (void)drawView {
-	if (useCADisplayLink) {
-		// Pause the CADisplayLink to avoid recursion
-		[displayLink setPaused:YES];
-
-		// Process all input events
-		while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, TRUE) == kCFRunLoopRunHandledSource)
-			;
-
-		// We are good to go, resume the CADisplayLink
-		[displayLink setPaused:NO];
-	}
 
 	if (!active) {
 		printf("draw view not active!\n");
 		return;
 	};
+	if (useCADisplayLink) {
+		// Pause the CADisplayLink to avoid recursion
+		[displayLink setPaused:YES];
+
+		// Process all input events
+		while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.0, TRUE) == kCFRunLoopRunHandledSource)
+			;
+
+		// We are good to go, resume the CADisplayLink
+		[displayLink setPaused:NO];
+	}
 
 	// Make sure that you are drawing to the current context
 	[EAGLContext setCurrentContext:context];