From d96876db07c6e5e83407fe714349021696e9af55 Mon Sep 17 00:00:00 2001
From: Andreas Loew <joachim@codeandweb.com>
Date: Thu, 9 Feb 2023 16:07:36 +0100
Subject: [PATCH] display error message if shader initialization fails (#1051)

---
 core/renderer/backend/metal/ShaderModuleMTL.mm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/renderer/backend/metal/ShaderModuleMTL.mm b/core/renderer/backend/metal/ShaderModuleMTL.mm
index 08af97a5f9..29ddf237ad 100644
--- a/core/renderer/backend/metal/ShaderModuleMTL.mm
+++ b/core/renderer/backend/metal/ShaderModuleMTL.mm
@@ -49,7 +49,9 @@ ShaderModuleMTL::ShaderModuleMTL(id<MTLDevice> mtlDevice, ShaderStage stage, std
     {
         NSLog(@"Can not get metal shader:");
         NSLog(@"%s", source.data());
+        NSLog(@"%s", glslopt_get_log(glslShader));
         glslopt_cleanup(ctx);
+        assert(false);
         return;
     }
 
@@ -68,8 +70,10 @@ ShaderModuleMTL::ShaderModuleMTL(id<MTLDevice> mtlDevice, ShaderStage stage, std
     {
         NSLog(@"Can not compile metal shader: %@", error);
         NSLog(@"%s", metalShader);
+        NSLog(@"%s", glslopt_get_log(glslShader));
         glslopt_shader_delete(glslShader);
         glslopt_cleanup(ctx);
+        assert(false);
         return;
     }
 
@@ -81,6 +85,7 @@ ShaderModuleMTL::ShaderModuleMTL(id<MTLDevice> mtlDevice, ShaderStage stage, std
     {
         NSLog(@"metal shader is ---------------");
         NSLog(@"%s", metalShader);
+        NSLog(@"%s", glslopt_get_log(glslShader));
         assert(false);
     }