1 (in-package #:clnl-interface)
3 (defvar *patch-size* 13d0)
4 (defvar *world-dims* '(:xmin -5 :xmax 5 :ymin -5 :ymax 5))
6 (defvar *turtle-list* nil)
8 ; It may be useful to keep windows around
9 (defvar *glut-window-opened* nil)
12 '((140 140 140) ; gray (5)
13 (215 48 39) ; red (15)
14 (241 105 19) ; orange (25)
15 (156 109 70) ; brown (35)
16 (237 237 47) ; yellow (45)
17 (87 176 58) ; green (55)
18 (42 209 57) ; lime (65)
19 (27 158 119) ; turquoise (75)
20 (82 196 196) ; cyan (85)
21 (43 140 190) ; sky (95)
22 (50 92 168) ; blue (105)
23 (123 78 163) ; violet (115)
24 (166 25 105) ; magenta (125)
25 (224 126 149) ; pink (135)
27 (255 255 255))) ; white
29 (defun nl-color->rgb (color)
31 ((step (+ (/ (- (mod (floor (* color 10)) 100) 50) 50.48) 0.012)))
33 (lambda (x) (/ (+ x (floor (* (if (< step 0d0) x (- 255 x)) step))) 255))
34 (nth (floor color 10) *colors*))))
36 (defun render-scene ()
37 (gl:clear :color-buffer-bit :depth-buffer-bit)
38 (gl:matrix-mode :projection)
40 (gl:ortho -71 71 -71 71 1 5000)
41 (gl:matrix-mode :modelview)
46 ((color (nl-color->rgb (clnl-nvm:turtle-color turtle))))
47 (gl:color (car color) (cadr color) (caddr color)))
48 (gl:with-pushed-matrix
49 (gl:translate (* (clnl-nvm:turtle-xcor turtle) *patch-size*) (* (clnl-nvm:turtle-ycor turtle) *patch-size*) 0)
50 (gl:rotate (clnl-nvm:turtle-heading turtle) 0 0 -1)
51 (gl:call-list *turtle-list*)))
57 (cl-glut:swap-buffers))
60 (cl-glut:post-redisplay))
65 (defun reshape (width height)
66 (when (and (/= 0 width) (/= 0 height))
67 (gl:viewport 0 0 width height)))
69 (cffi:defcallback display :void () (display))
70 (cffi:defcallback idle :void () (idle))
71 (cffi:defcallback close-func :void () (close-func))
72 (cffi:defcallback reshape :void ((width :int) (height :int)) (reshape width height))
74 (defun set-turtle-list ()
75 (setf *turtle-list* (gl:gen-lists 1))
76 (gl:with-new-list (*turtle-list* :compile)
77 (gl:rotate 180 0 0 -1)
78 (gl:scale (* (/ 1d0 300d0) 13) (* (/ 1d0 300d0) 13) 1)
79 (gl:translate -150 -150 -4.0)
88 ; I do this because I don't know who or what in the many layers
89 ; is causing the floating point errors, but I definitely don't
90 ; want to investigate until simply ignoring them becomes a problem.
91 (sb-int:with-float-traps-masked (:invalid)
93 (gl:clear-color 0 0 0 1)
94 (cl-glut:init-window-size
95 (floor (* *patch-size* (1+ (- (getf *world-dims* :xmax) (getf *world-dims* :xmin)))))
96 (floor (* *patch-size* (1+ (- (getf *world-dims* :ymax) (getf *world-dims* :ymin))))))
97 (setf *glut-window-opened* t)
98 (cl-glut:create-window "CLNL Test Window")
99 (cl-glut:init-display-mode :double :rgba)
100 (cl-glut:display-func (cffi:get-callback 'display))
101 (glut:reshape-func (cffi:callback reshape))
102 (cl-glut:idle-func (cffi:get-callback 'idle))
103 (cl-glut:close-func (cffi:get-callback 'close-func))
105 (cl-glut:main-loop)))
107 (defun export-view ()
108 (sb-int:with-float-traps-masked (:invalid)
109 (when (not *glut-window-opened*)
111 (gl:clear-color 0 0 0 1)
112 (cl-glut:init-window-size 1 1)
113 (cl-glut:create-window "CLNL Test Window")
115 (setf *glut-window-opened* t))
117 ((fbo (first (gl:gen-framebuffers 1)))
118 (render-buf (first (gl:gen-renderbuffers 1)))
119 ;(width (floor (* *patch-size* (1+ (- (getf *world-dims* :xmax) (getf *world-dims* :xmin))))))
120 ;(height (floor (* *patch-size* (1+ (- (getf *world-dims* :ymax) (getf *world-dims* :ymin))))))
121 (width 143) ; Hard coded for now, yay v1 (if you see this comment in a year, please cry for me)
123 (gl:bind-framebuffer :framebuffer fbo)
124 (gl:bind-renderbuffer :renderbuffer render-buf)
125 (gl:renderbuffer-storage :renderbuffer :rgba8 width height)
126 (gl:framebuffer-renderbuffer :draw-framebuffer :color-attachment0 :renderbuffer render-buf)
127 (gl:viewport 0 0 width height)
129 (gl:read-pixels 0 0 width height :rgba :unsigned-byte))))