[refactor] [structure] modularized project file structure

1 files changed, 31 insertions, 0 deletions

diff --git a/src/assets/png.lisp b/src/assets/png.lisp
new file mode 100644
index 0000000..aa259f0
--- /dev/null
+++ b/src/assets/png.lisp
@@ -0,0 +1,31 @@
+;;;; png.lisp
+
+(in-package #:wheelwork)
+
+(defclass/std png (asset texture) ())
+
+(defmethod ensure-loaded ((png png))
+  (with-slots
+        (width height id wrap-s wrap-t min-filter mag-filter internal-format image-format)
+      png
+    (pngload:with-png-in-static-vector (data (asset-path png) :flip-y t)
+      (setf width (pngload:width data)
+            height (pngload:height data)
+            id (gl:gen-texture))
+      (gl:bind-texture :texture-2d id)
+      (gl:tex-parameter :texture-2d :texture-wrap-s wrap-s)
+      (gl:tex-parameter :texture-2d :texture-wrap-t wrap-t)
+      (gl:tex-parameter :texture-2d :texture-min-filter min-filter)
+      (gl:tex-parameter :texture-2d :texture-mag-filter mag-filter)
+      (gl:tex-image-2d :texture-2d
+                       0
+                       internal-format
+                       width
+                       height
+                       0
+                       image-format
+                       :unsigned-byte
+                       (pngload:data data))
+      (gl:bind-texture :texture-2d 0)
+      (when (texture-mipmap png)
+        (gl:generate-mipmap :texture-2d)))))