From 208be3dd5eb6f4fc77794c25767430ae8cd91b99 Mon Sep 17 00:00:00 2001
From: reuk <reuk@users.noreply.github.com>
Date: Sat, 15 Apr 2023 15:09:44 +0100
Subject: [PATCH] CGMetalLayerRenderer: Fix crash when attempting to render
 zero-sized components

---
 .../native/juce_CGMetalLayerRenderer_mac.h               | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/modules/juce_gui_basics/native/juce_CGMetalLayerRenderer_mac.h b/modules/juce_gui_basics/native/juce_CGMetalLayerRenderer_mac.h
index c0187d3e67..de0949776c 100644
--- a/modules/juce_gui_basics/native/juce_CGMetalLayerRenderer_mac.h
+++ b/modules/juce_gui_basics/native/juce_CGMetalLayerRenderer_mac.h
@@ -86,9 +86,13 @@ public:
         {
             layer.drawableSize = transformedFrameSize;
             resources = std::make_unique<Resources> (device.get(), layer);
-            dirtyRegions = convertToRectFloat (layer.bounds);
+            dirtyRegions.clear();
+            dirtyRegions.add (convertToRectFloat (layer.bounds));
         }
 
+        if (CGSizeEqualToSize (transformedFrameSize, CGSizeZero))
+            return dirtyRegions;
+
         auto gpuTexture = resources->getGpuTexture();
 
         if (gpuTexture == nullptr)
@@ -209,7 +213,8 @@ private:
         GpuTexturePool (id<MTLDevice> metalDevice, MTLTextureDescriptor* descriptor)
         {
             for (auto& t : textureCache)
-                t.reset ([metalDevice newTextureWithDescriptor: descriptor]);
+                t.reset ((descriptor.width != 0 && descriptor.height != 0) ? [metalDevice newTextureWithDescriptor: descriptor]
+                                                                           : nullptr);
         }
 
         id<MTLTexture> take() const