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-rw-r--r--src/interactive/image.lisp102
1 files changed, 53 insertions, 49 deletions
diff --git a/src/interactive/image.lisp b/src/interactive/image.lisp
index 0089f57..1b3a817 100644
--- a/src/interactive/image.lisp
+++ b/src/interactive/image.lisp
@@ -14,63 +14,67 @@
count and destroys shader-program if necessary."
(decf *image-count*)
(unless (plusp *image-count*)
- (when *image-vao*
- (gl:delete-vertex-arrays (list *image-vao*))
- (setf *image-vao* nil))
- (when *image-shader-program*
- (gl:delete-program *image-shader-program*)
- (setf *image-shader-program* nil))))
+ ))
(defclass/std image (unit interactive)
((texture :ri :std (error "A image requires a texture."))))
+(defun make-shared-image-gpu-objects ()
+ (unless *image-shader-program*
+ (setf *image-shader-program*
+ (create-shader
+ '(:vertex
+ ((vert :vec2))
+ ((transform :mat4))
+ ((values
+ (* transform (vari:vec4 vert 0.0 1.0))
+ vert))) ;color
+ '(:fragment
+ ((tc :vec2))
+ ((tex :sampler-2d))
+ ((let ((frag (vari:texture tex tc)))
+ (if (< (aref frag 3) 0.01)
+ (vari:discard)
+ frag))))))
+ (gl:program-uniformi
+ *image-shader-program*
+ (gl:get-uniform-location *image-shader-program* "TEX")
+ 0))
+
+ (unless *image-vao*
+ (setf *image-vao* (gl:gen-vertex-array))
+ (gl:bind-vertex-array *image-vao*)
+ (let ((vbo (gl:gen-buffer)))
+ (with-gl-array (verts :float
+ 0.0 1.0
+ 1.0 0.0
+ 0.0 0.0
+
+ 0.0 1.0
+ 1.0 1.0
+ 1.0 0.0 )
+ (gl:bind-buffer :array-buffer vbo)
+ (gl:buffer-data :array-buffer :static-draw verts)))
+ (gl:enable-vertex-attrib-array 0)
+ (gl:vertex-attrib-pointer 0 2 :float 0 (* +float-size+ 2) 0)
+ (gl:bind-buffer :array-buffer 0)
+ (gl:bind-vertex-array 0))
+
+ (unless (pre-exit-hook-exists-p :image-gpu-resources)
+ (pre-exit-hook :image-gpu-resources
+ (lambda ()
+ (when *image-vao*
+ (gl:delete-vertex-arrays (list *image-vao*))
+ (setf *image-vao* nil))
+ (when *image-shader-program*
+ (gl:delete-program *image-shader-program*)
+ (setf *image-shader-program* nil))))))
+
(defmethod initialize-instance :after ((image image) &key)
- (incf *image-count*)
- (trivial-garbage:finalize image #'image-finalizer)
(with-slots (base-width base-height texture) image
(setf base-height (texture-height texture)
base-width (texture-width texture))
- (unless *image-shader-program*
- (setf *image-shader-program*
- (create-shader
- '(:vertex
- ((vert :vec2))
- ((transform :mat4))
- ((values
- (* transform (vari:vec4 vert 0.0 1.0))
- vert))) ;color
- '(:fragment
- ((tc :vec2))
- ((tex :sampler-2d))
- ((let ((frag (vari:texture tex tc)))
- (if (< (aref frag 3) 0.01)
- (vari:discard)
- frag))))))
- (gl:program-uniformi
- *image-shader-program*
- (gl:get-uniform-location *image-shader-program* "TEX")
- 0))
- (unless *image-vao*
- (setf *image-vao* (gl:gen-vertex-array))
- (gl:bind-vertex-array *image-vao*)
- (let ((vbo (gl:gen-buffer)))
- (with-gl-array (verts :float
- 0.0 1.0
- 1.0 0.0
- 0.0 0.0
-
- 0.0 1.0
- 1.0 1.0
- 1.0 0.0 )
- (gl:bind-buffer :array-buffer vbo)
- (gl:buffer-data :array-buffer :static-draw verts)))
- (gl:enable-vertex-attrib-array 0)
- (gl:vertex-attrib-pointer 0 2 :float 0 (* +float-size+ 2) 0)
- (gl:bind-buffer :array-buffer 0)
- (gl:bind-vertex-array 0))))
-
-(defmethod cleanup ((image image))
- (image-finalizer))
+ (make-shared-image-gpu-objects)))
(defmethod render ((image image))
(with-slots (texture) image