[refactor] [structure] modularized project file structure

1 files changed, 19 insertions, 0 deletions

diff --git a/src/gl/util.lisp b/src/gl/util.lisp
new file mode 100644
index 0000000..bff2f88
--- /dev/null
+++ b/src/gl/util.lisp
@@ -0,0 +1,19 @@
+;;;; gl/util.lisp
+
+(in-package #:wheelwork)
+
+(define-symbol-macro +float-size+
+    (cffi:foreign-type-size :float))
+
+(defun gl-array (type &rest contents)
+  (let ((array (gl:alloc-gl-array type (length contents))))
+    (dotimes (i (length contents) array)
+      (setf (gl:glaref array i) (elt contents i)))))
+
+(defmacro with-gl-array ((var type &rest contents) &body body)
+  `(let ((,var (gl-array ,type ,@contents))) 
+     (unwind-protect (progn ,@body)
+       (gl:free-gl-array ,var))))
+
+
+