From 7d69fd3ca90c99d2465dee0213fa2730e8776f1e Mon Sep 17 00:00:00 2001
From: Georg Hagen <git.georg.hagen@madvoxel.com>
Date: Wed, 8 Jan 2025 15:50:10 +0100
Subject: [PATCH] Improve error handling

---
 openVulkanoCpp/AR/Provider/ArKit/ArSessionArKit.mm | 6 +++++-
 openVulkanoCpp/Vulkan/Metal/MetalTextureCache.mm   | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/openVulkanoCpp/AR/Provider/ArKit/ArSessionArKit.mm b/openVulkanoCpp/AR/Provider/ArKit/ArSessionArKit.mm
index f1f75ed..e71b1a8 100644
--- a/openVulkanoCpp/AR/Provider/ArKit/ArSessionArKit.mm
+++ b/openVulkanoCpp/AR/Provider/ArKit/ArSessionArKit.mm
@@ -19,10 +19,14 @@ namespace OpenVulkano::AR::ArKit
 		}
 	}
 
-	std::shared_ptr<ArSession> ArSessionArKit::Create(const ArSessionConfig& config)
+	std::shared_ptr<ArSession> ArSessionArKit::Create(const ArSessionConfig& config) try
 	{
 		return std::dynamic_pointer_cast<ArSession>(std::make_shared<ArSessionArKitInternal>(config));
 	}
+	catch (NSException* e)
+	{
+		throw std::runtime_error(e.description.cString);
+	}
 
 	bool ArSessionArKit::IsAvailable()
 	{
diff --git a/openVulkanoCpp/Vulkan/Metal/MetalTextureCache.mm b/openVulkanoCpp/Vulkan/Metal/MetalTextureCache.mm
index 46b36cc..536753e 100644
--- a/openVulkanoCpp/Vulkan/Metal/MetalTextureCache.mm
+++ b/openVulkanoCpp/Vulkan/Metal/MetalTextureCache.mm
@@ -57,7 +57,7 @@ namespace OpenVulkano::Vulkan
 	void MetalTextureCache::Close()
 	{
 		m_mtlToVkTextureMap.clear();
-		m_eventHandler->SetInvalid();
+		if (m_eventHandler) m_eventHandler->SetInvalid();
 		m_renderer = nullptr;
 		m_resourceManager = nullptr;
 		//TODO delete the texture cache object?