apprt/embedded: fix initialization on macOS

include/ghostty.h

@@ -31,6 +31,7 @@ typedef void *ghostty_inspector_t;
 
 // Enums are up top so we can reference them later.
 typedef enum {
+    GHOSTTY_PLATFORM_INVALID,
     GHOSTTY_PLATFORM_MACOS,
 } ghostty_platform_e;
 
@@ -354,8 +355,17 @@ typedef struct {
 } ghostty_error_s;
 
 typedef struct {
-    void *userdata;
     void *nsview;
+} ghostty_platform_macos_s;
+
+typedef union {
+    ghostty_platform_macos_s macos;
+} ghostty_platform_u;
+
+typedef struct {
+    ghostty_platform_e platform_tag;
+    ghostty_platform_u platform;
+    void *userdata;
     double scale_factor;
     uint16_t font_size;
     const char *working_directory;
@@ -476,9 +486,6 @@ uintptr_t ghostty_surface_pwd(ghostty_surface_t, char *, uintptr_t);
 
 ghostty_inspector_t ghostty_surface_inspector(ghostty_surface_t);
 void ghostty_inspector_free(ghostty_surface_t);
-bool ghostty_inspector_metal_init(ghostty_inspector_t, void *);
-void ghostty_inspector_metal_render(ghostty_inspector_t, void *, void *);
-bool ghostty_inspector_metal_shutdown(ghostty_inspector_t);
 void ghostty_inspector_set_focus(ghostty_inspector_t, bool);
 void ghostty_inspector_set_content_scale(ghostty_inspector_t, double, double);
 void ghostty_inspector_set_size(ghostty_inspector_t, uint32_t, uint32_t);
@@ -488,6 +495,12 @@ void ghostty_inspector_mouse_scroll(ghostty_inspector_t, double, double, ghostty
 void ghostty_inspector_key(ghostty_inspector_t, ghostty_input_action_e, ghostty_input_key_e, ghostty_input_mods_e);
 void ghostty_inspector_text(ghostty_inspector_t, const char *);
 
+#ifdef __APPLE__
+bool ghostty_inspector_metal_init(ghostty_inspector_t, void *);
+void ghostty_inspector_metal_render(ghostty_inspector_t, void *, void *);
+bool ghostty_inspector_metal_shutdown(ghostty_inspector_t);
+#endif
+
 // APIs I'd like to get rid of eventually but are still needed for now.
 // Don't use these unless you know what you're doing.
 void ghostty_set_window_background_blur(ghostty_surface_t, void *);

macos/Sources/Ghostty/SurfaceView.swift

@@ -277,8 +277,11 @@ extension Ghostty {
         /// in the returned struct is only valid as long as this struct is retained.
         func ghosttyConfig(view: SurfaceView) -> ghostty_surface_config_s {
             var config = ghostty_surface_config_new()
+            config.platform_tag = GHOSTTY_PLATFORM_MACOS
+            config.platform = ghostty_platform_u(macos: ghostty_platform_macos_s(
+                nsview: Unmanaged.passUnretained(view).toOpaque()
+            ))
             config.userdata = Unmanaged.passUnretained(view).toOpaque()
-            config.nsview = Unmanaged.passUnretained(view).toOpaque()
             config.scale_factor = NSScreen.main!.backingScaleFactor
 
             if let fontSize = fontSize { config.font_size = fontSize }

src/apprt/embedded.zig

@@ -283,14 +283,14 @@ pub const Surface = struct {
     inspector: ?*Inspector = null,
 
     pub const Options = extern struct {
-        /// Userdata passed to some of the callbacks.
-        userdata: ?*anyopaque = null,
-
         /// The platform that this surface is being initialized for and
         /// the associated platform-specific configuration.
         platform_tag: c_int = 0,
         platform: Platform.C = undefined,
 
+        /// Userdata passed to some of the callbacks.
+        userdata: ?*anyopaque = null,
+
         /// The scale factor of the screen.
         scale_factor: f64 = 1,
 

src/renderer/Metal.zig

@@ -466,7 +466,9 @@ pub fn finalizeSurfaceInit(self: *const Metal, surface: *apprt.Surface) !void {
         },
 
         apprt.embedded => .{
-            .view = surface.nsview,
+            .view = switch (surface.platform) {
+                .macos => |v| v.nsview,
+            },
             .scaleFactor = @floatCast(surface.content_scale.x),
         },