307 struct loader_instance {  struct
308     struct loader_instance_dispatch_table *disp;  // must be first entry in structure  argument
332     struct loader_instance *next;  argument
338     // Must store the strings inside loader_instance directly - since the asm code will offset into  argument
363     struct loader_instance_extension_enables enabled_known_extensions;  argument
366     struct loader_used_object_list surfaces_list;
367     struct loader_used_object_list debug_utils_messengers_list;
368     struct loader_used_object_list debug_report_callbacks_list;
371     VkLayerDbgFunctionNode *current_dbg_function_head;        // Current head
372 … VkLayerDbgFunctionNode *instance_only_dbg_function_head;  // Only used for instance create/destroy
374     VkAllocationCallbacks alloc_callbacks;
377     bool instance_finished_creation;
379     loader_settings settings;
381     bool portability_enumeration_enabled;
382     bool portability_enumeration_flag_bit_set;
383     bool portability_enumeration_extension_enabled;
385     bool wsi_surface_enabled;
387     bool wsi_win32_surface_enabled;
390     bool wsi_wayland_surface_enabled;
393     bool wsi_xcb_surface_enabled;
396     bool wsi_xlib_surface_enabled;
399     bool wsi_directfb_surface_enabled;
402     bool wsi_android_surface_enabled;
405     bool wsi_ohos_surface_enabled;
408     bool wsi_macos_surface_enabled;
411     bool wsi_ios_surface_enabled;
414     bool wsi_ggp_surface_enabled;
416     bool wsi_headless_surface_enabled;
418     bool wsi_metal_surface_enabled;
421     bool wsi_imagepipe_surface_enabled;
424     bool wsi_screen_surface_enabled;
427     bool wsi_vi_surface_enabled;
429     bool wsi_display_enabled;
453     struct loader_instance_dispatch_table *disp;  // must be first entry in structure  argument
454     struct loader_instance *this_instance;  argument