mach/libmach/test.lisp

58 lines
1.5 KiB
Common Lisp

;; Tests the behavior of `libmach` using Common Lisp's CFFI
;; This Lisp script is basically a one-to-one translation of `test.c`
(ql:quickload :cffi)
(defpackage :cffi-user
(:use :cl :cffi))
(in-package :cffi-user)
(define-foreign-library libmach
(t (:default "./build/libmach")))
(use-foreign-library libmach)
;; Note: CFFI automatically translates C_style names into lispier kebab-case ones
(defcfun "mach_core_init" :pointer)
(defcfun "mach_core_update" :int
(core :pointer) (resize-fn :pointer))
(defcfun "mach_core_deinit" :void
(core :pointer))
;; void mach_set_should_close(void*);
(defcfun "mach_core_set_should_close" :void
(core :pointer))
;; float mach_delta_time(void*);
(defcfun "mach_core_delta_time" :float
(core :pointer))
;; bool mach_window_should_close(void*);
(defcfun "mach_core_window_should_close" :bool
(core :pointer))
;; main
(defvar *elapsed* 0.0)
(defcallback resize-fn :void ((core :pointer) (width :unsigned-int) (height :unsigned-int))
(format t "Resize Callback: ~S ~S~%" width height))
(setf core (mach-core-init))
(when (pointer-eq core (null-pointer))
(format t "Failed to initialize mach core~%")
(sb-ext:exit))
(loop while (not (mach-core-window-should-close core))
do (progn
(when (= 0 (mach-core-update core (callback resize-fn)))
(format t "Error updating mach~%")
(sb-ext:exit))
(when (> (incf *elapsed* (mach-core-delta-time core)) 5.0)
(mach-core-set-should-close core))))
(sb-ext:exit)