From 75bb196b4f7007a0c62ee78f9399b693e27c7e00 Mon Sep 17 00:00:00 2001
From: Nikita Tsukanov <keks9n@gmail.com>
Date: Mon, 11 May 2020 21:51:01 +0300
Subject: [PATCH] Workaround for ItemsRepeater producing nonsensical values

---
 src/Skia/Avalonia.Skia/DrawingContextImpl.cs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Skia/Avalonia.Skia/DrawingContextImpl.cs b/src/Skia/Avalonia.Skia/DrawingContextImpl.cs
index fc7761d015..5267f68260 100644
--- a/src/Skia/Avalonia.Skia/DrawingContextImpl.cs
+++ b/src/Skia/Avalonia.Skia/DrawingContextImpl.cs
@@ -248,6 +248,13 @@ namespace Avalonia.Skia
         /// <inheritdoc />
         public void DrawRectangle(IBrush brush, IPen pen, RoundedRect rect, BoxShadows boxShadows = default)
         {
+            if (rect.Rect.Height <= 0 || rect.Rect.Width <= 0)
+                return;
+            // Arbitrary chosen values
+            // On OSX Skia breaks OpenGL context when asked to draw, e. g. (0, 0, 623, 6666600) rect
+            if (rect.Rect.Height > 8192 || rect.Rect.Width > 8192)
+                boxShadows = default;
+
             var rc = rect.Rect.ToSKRect();
             var isRounded = rect.IsRounded;
             var needRoundRect = rect.IsRounded || (boxShadows.HasInsetShadows);