From 95e1dcce2ef7c7f407d2e952ad7749b2559af41f Mon Sep 17 00:00:00 2001
From: Sebastian Emanuel Dawid <sdawid@techfak.uni-bielefeld.de>
Date: Wed, 1 Oct 2025 09:06:03 +0200
Subject: [PATCH] Add metal layer creation that was previously missing.

---
 examples/CMakeLists.txt |  2 +-
 src/cocoa_window.m      | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 047494824..b40fa5bf4 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -26,7 +26,6 @@ set(TINYCTHREAD "${GLFW_SOURCE_DIR}/deps/tinycthread.h"
                 "${GLFW_SOURCE_DIR}/deps/tinycthread.c")
 
 include(FetchContent)
-
 FetchContent_Declare(
 	webgpu
 	GIT_REPOSITORY https://github.com/eliemichel/WebGPU-distribution.git
@@ -36,6 +35,7 @@ FetchContent_Declare(
 	EXCLUDE_FROM_ALL
 )
 FetchContent_MakeAvailable(webgpu)
+message("${CMAKE_SYSTEM_PROCESSOR}")
 
 add_executable(boing WIN32 MACOSX_BUNDLE boing.c ${ICON} ${GLAD_GL})
 add_executable(gears WIN32 MACOSX_BUNDLE gears.c ${ICON} ${GLAD_GL})
diff --git a/src/cocoa_window.m b/src/cocoa_window.m
index 8bfe71675..a35dc7bb1 100644
--- a/src/cocoa_window.m
+++ b/src/cocoa_window.m
@@ -2028,6 +2028,17 @@ typedef struct WGPUSurfaceSourceMetalLayer
 
 WGPUSurface _glfwCreateWindowWGPUSurfaceCocoa(WGPUInstance instance, _GLFWwindow* window)
 {
+    window->ns.layer = [CAMetalLayer layer];
+    if (!window->ns.layer)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to create layer for view");
+        return NULL;
+    }
+
+    if (window->ns.scaleFramebuffer)
+        [window->ns.layer setContentsScale:[window->ns.object backingScaleFactor]];
+
     [window->ns.view setLayer:window->ns.layer];
     [window->ns.view setWantsLayer:YES];