From 475fea4d1d2ae82003cc20e13902081ce8560fd9 Mon Sep 17 00:00:00 2001
From: Nikita Tsukanov <keks9n@gmail.com>
Date: Sat, 1 Aug 2020 14:04:08 +0300
Subject: [PATCH] Added SleepLoopRenderTimer because of libnvidia-glcore.so
 crashes

---
 .../Rendering/SleepLoopRenderTimer.cs         | 33 +++++++++++++++++++
 src/Avalonia.X11/X11Platform.cs               |  2 +-
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 src/Avalonia.Visuals/Rendering/SleepLoopRenderTimer.cs

diff --git a/src/Avalonia.Visuals/Rendering/SleepLoopRenderTimer.cs b/src/Avalonia.Visuals/Rendering/SleepLoopRenderTimer.cs
new file mode 100644
index 0000000000..a44891a888
--- /dev/null
+++ b/src/Avalonia.Visuals/Rendering/SleepLoopRenderTimer.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Diagnostics;
+using System.Threading;
+
+namespace Avalonia.Rendering
+{
+    public class SleepLoopRenderTimer : IRenderTimer
+    {
+        public event Action<TimeSpan> Tick;
+
+        public SleepLoopRenderTimer(int fps)
+        {
+            var timeBetweenTicks = TimeSpan.FromSeconds(1d / fps);
+            new Thread(() =>
+            {
+                var st = Stopwatch.StartNew();
+                var now = st.Elapsed;
+                var lastTick = now;
+
+                while (true)
+                {
+                    var timeTillNextTick = lastTick + timeBetweenTicks - now;
+                    if (timeTillNextTick.TotalMilliseconds > 1)
+                        Thread.Sleep(timeTillNextTick);
+
+
+                    Tick?.Invoke(now);
+                    now = st.Elapsed;
+                }
+            }) { IsBackground = true }.Start();
+        }
+    }
+}
diff --git a/src/Avalonia.X11/X11Platform.cs b/src/Avalonia.X11/X11Platform.cs
index 9e9c4fd30e..7f3255d4da 100644
--- a/src/Avalonia.X11/X11Platform.cs
+++ b/src/Avalonia.X11/X11Platform.cs
@@ -47,7 +47,7 @@ namespace Avalonia.X11
             AvaloniaLocator.CurrentMutable.BindToSelf(this)
                 .Bind<IWindowingPlatform>().ToConstant(this)
                 .Bind<IPlatformThreadingInterface>().ToConstant(new X11PlatformThreading(this))
-                .Bind<IRenderTimer>().ToConstant(new DefaultRenderTimer(60))
+                .Bind<IRenderTimer>().ToConstant(new SleepLoopRenderTimer(60))
                 .Bind<IRenderLoop>().ToConstant(new RenderLoop())
                 .Bind<PlatformHotkeyConfiguration>().ToConstant(new PlatformHotkeyConfiguration(KeyModifiers.Control))
                 .Bind<IKeyboardDevice>().ToFunc(() => KeyboardDevice)