(define-module (gacela video)
#:use-module (gacela sdl)
- #:use-module (gacela gl)
+; #:use-module (gacela gl)
+ #:use-module (figl gl)
+ #:use-module (figl glu)
#:use-module (gacela ftgl)
#:use-module (gacela math)
#:use-module (gacela utils)
load-font
load-font-without-texture
render-text)
- #:re-export (glPushMatrix
- glPopMatrix)
- #:export-syntax (glmatrix-block))
+ #:re-export (with-gl-push-matrix))
(SDL_Quit))))
(define (clear-screen)
- (glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT)))
+ (gl-clear (clear-buffer-mask color-buffer depth-buffer)))
(define (flip-screen)
(SDL_GL_SwapBuffers))
(define (set-2d-mode)
(set! mode '2d)
- (glDisable GL_DEPTH_TEST)
+ (gl-disable depth-test)
(resize-screen-GL (get-screen-width) (get-screen-height)))
(define (set-3d-mode)
(set! mode '3d)
- (glClearDepth 1)
- (glEnable GL_DEPTH_TEST)
- (glDepthFunc GL_LEQUAL)
+ (sel-gl-clear-depth 1)
+ (gl-enable depth-test)
+ (set-gl-depth-function lequal)
(resize-screen-GL (get-screen-width) (get-screen-height)))
(define (3d-mode?)
(define (init-gl)
- (glShadeModel GL_SMOOTH)
+ (set-gl-shade-model GL_SMOOTH)
(glClearColor 0 0 0 0)
- (glEnable GL_BLEND)
+ (gl-enable GL_BLEND)
(glBlendFunc GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA)
(glHint GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST))
(glColor4f red green blue alpha))
(define-macro (with-color color . code)
- (cond (color
- `(let ((original-color (get-current-color))
+ `(cond (,color
+ (let ((original-color (get-current-color))
(result #f))
(apply set-current-color ,color)
(set! result (begin ,@code))
(apply set-current-color original-color)
result))
- (else `(begin ,@code))))
+ (else (begin ,@code))))
(define-macro (progn-textures . code)
`(let ((result #f))
- (glEnable GL_TEXTURE_2D)
+ (gl-enable GL_TEXTURE_2D)
(set! result (begin ,@code))
- (glDisable GL_TEXTURE_2D)
+ (gl-disable GL_TEXTURE_2D)
result))
(define (draw . vertexes)
(define (begin-draw number-of-points)
(cond ((= number-of-points 2) (glBegin GL_LINES))
((= number-of-points 3) (glBegin GL_TRIANGLES))
- ((= number-of-points 4) (glBegin GL_QUADS))))
+ ((= number-of-points 4) (glBegin GL_QUADS))
+ ((> number-of-points 4) (glBegin GL_POLYGON))))
(define (draw-vertexes vertexes)
(cond ((not (null? vertexes))
(draw-vertexes (cdr vertexes)))))
(define* (draw-vertex vertex #:key texture-coord)
- (cond ((list? (car vertex))
- (with-color (car vertex)
- (apply simple-draw-vertex (cadr vertex))))
- (else
- (cond (texture-coord (apply glTexCoord2f texture-coord)))
- (apply simple-draw-vertex vertex))))
+ (cond (texture-coord (apply glTexCoord2f texture-coord)))
+ (apply simple-draw-vertex vertex))
(define* (simple-draw-vertex x y #:optional (z 0))
(cond ((3d-mode?) (glVertex3f x y z))
#:texture texture
#:texture-coord sprite)))))
-(define* (draw-line length #:optional color)
+(define* (draw-line length)
(let ((l (/ length 2)))
- (cond (color
- (with-color color (draw (list 0 l) (list 0 (- l)))))
- (else
- (draw (list 0 l) (list 0 (- l)))))))
+ (draw (list 0 l) (list 0 (- l)))))
+
+(define (draw-circle radius)
+ (glBegin GL_POLYGON)
+ (do ((i 0 (1+ i)))
+ ((>= i 360))
+ (let ((a (degrees-to-radians i)))
+ (draw-vertex (list (* radius (cos a)) (* radius (sin a))))))
+ (glEnd))
-(define* (draw-quad v1 v2 v3 v4 #:key texture color (texture-coord '((0 0) (1 1))))
+(define* (draw-quad v1 v2 v3 v4 #:key texture (texture-coord '((0 0) (1 1))))
(cond (texture
(progn-textures
(glBindTexture GL_TEXTURE_2D texture)
(draw-vertex v3 #:texture-coord (cadr texture-coord))
(draw-vertex v4 #:texture-coord (list (caar texture-coord) (cadadr texture-coord)))
(glEnd)))
- (color
- (with-color color (draw v1 v2 v3 v4)))
(else
(draw v1 v2 v3 v4))))
-(define* (draw-rectangle width height #:key texture color texture-coord)
+(define* (draw-rectangle width height #:key texture texture-coord)
(let ((w (/ width 2)) (h (/ height 2)))
(draw-quad (list (- w) h 0)
(list w h 0)
(list w (- h) 0)
(list (- w) (- h) 0)
#:texture texture
- #:texture-coord texture-coord
- #:color color)))
+ #:texture-coord texture-coord)))
-(define* (draw-square size #:key texture color)
- (draw-rectangle size size #:texture texture #:color color))
+(define* (draw-square size #:key texture)
+ (draw-rectangle size size #:texture texture))
(define* (draw-cube #:key (size 1)
texture texture-1 texture-2 texture-3 texture-4 texture-5 texture-6
- color color-1 color-2 color-3 color-4 color-5 color-6)
+ color-1 color-2 color-3 color-4 color-5 color-6)
(let ((-size (- size)))
(progn-textures
(glNormal3f 0 0 1)
- (draw-quad (list -size size size) (list size size size) (list size -size size) (list -size -size size) #:texture (or texture-1 texture) #:color (or color-1 color))
+ (with-color color-1 (draw-quad (list -size size size) (list size size size) (list size -size size) (list -size -size size) #:texture (or texture-1 texture)))
(glNormal3f 0 0 -1)
- (draw-quad (list -size -size -size) (list size -size -size) (list size size -size) (list -size size -size) #:texture (or texture-2 texture) #:color (or color-2 color))
+ (with-color color-2 (draw-quad (list -size -size -size) (list size -size -size) (list size size -size) (list -size size -size) #:texture (or texture-2 texture)))
(glNormal3f 0 1 0)
- (draw-quad (list size size size) (list -size size size) (list -size size -size) (list size size -size) #:texture (or texture-3 texture) #:color (or color-3 color))
+ (with-color color-3 (draw-quad (list size size size) (list -size size size) (list -size size -size) (list size size -size) #:texture (or texture-3 texture)))
(glNormal3f 0 -1 0)
- (draw-quad (list -size -size size) (list size -size size) (list size -size -size) (list -size -size -size) #:texture (or texture-4 texture) #:color (or color-4 color))
+ (with-color color-4 (draw-quad (list -size -size size) (list size -size size) (list size -size -size) (list -size -size -size) #:texture (or texture-4 texture)))
(glNormal3f 1 0 0)
- (draw-quad (list size -size -size) (list size -size size) (list size size size) (list size size -size) #:texture (or texture-5 texture) #:color (or color-5 color))
+ (with-color color-5 (draw-quad (list size -size -size) (list size -size size) (list size size size) (list size size -size) #:texture (or texture-5 texture)))
(glNormal3f -1 0 0)
- (draw-quad (list -size -size size) (list -size -size -size) (list -size size -size) (list -size size size) #:texture (or texture-6 texture) #:color (or color-6 color)))))
+ (with-color color-6 (draw-quad (list -size -size size) (list -size -size -size) (list -size size -size) (list -size size size) #:texture (or texture-6 texture))))))
(define* (gtranslate x y #:optional (z 0))
(glTranslatef x y z))
(glLoadIdentity)
(cond ((3d-mode?) (camera-look))))
-(define-macro (glmatrix-block . code)
- `(let ((result #f))
- (glPushMatrix)
- (set! result (begin ,@code))
- (glPopMatrix)
- result))
-
;;; Lights
;; (and light (glLightfv id GL_DIFFUSE (car light) (cadr light) (caddr light) (cadddr light)))
;; (and light position (glLightfv GL_POSITION (car position) (cadr position) (caddr position) (cadddr position)))
;; (and ambient (glLightfv id GL_AMBIENT (car ambient) (cadr ambient) (caddr ambient) (cadddr ambient)))
-;; (and turn-on (glEnable id))
+;; (and turn-on (gl-enable id))
;; id)
(define mesh-type
(make-record-type "mesh"
- '(draw translate turn rotate inner-properties inner-property properties properties-set! property property-set!)
+ '(draw translate turn rotate color inner-properties inner-property properties properties-set! property property-set!)
(lambda (record port)
(format port "#<mesh: ~a" (mesh-inner-property record 'type))
- (for-each (lambda (x)
- (cond (((@ (gacela utils) bound?) (cdr x))
- (format port " ~a" x))))
+ (for-each (lambda (x) (format port " ~a" x))
(mesh-properties record))
(display ">" port))))
(let ((px 0) (py 0) (pz 0)
(ax 0) (ay 0) (az 0)
(rx 0) (ry 0) (rz 0)
+ (color #f)
(properties '()))
(let ((inner-properties
(lambda ()
- `((type . ,type) (x . ,px) (y . ,py) (z . ,pz) (ax . ,ax) (ay . ,ay) (az . ,az) (rx . ,rx) (ry . ,ry) (rz . ,rz)))))
+ `((type . ,type) (color . ,color)
+ (x . ,px) (y . ,py) (z . ,pz)
+ (ax . ,ax) (ay . ,ay) (az . ,az)
+ (rx . ,rx) (ry . ,ry) (rz . ,rz)))))
(list
(lambda ()
"draw"
(grotate ax ay az)
(gtranslate px py pz)
(grotate rx ry rz)
- (proc properties)))
+ (with-color color (proc properties))))
(lambda (x y z)
"translate"
(set! px (+ px x))
(set! rx (+ rx x))
(set! ry (+ ry y))
(set! rz (+ rz z)))
+ (lambda (c)
+ "color"
+ (set! color c))
(lambda ()
"inner-properties"
(inner-properties))
(list 0 0 (car params))))
mesh)
+(define (color mesh c)
+ (((record-accessor mesh-type 'color) mesh) c)
+ mesh)
+
+
+;;; Advanced meshes
+
+(define (mesh-join . meshes)
+ (make-mesh
+ 'joined-meshes
+ (lambda (props)
+ (for-each (lambda (m) (glmatrix-block (mesh-draw m))) meshes))))
+
;;; Primitives
-(define-macro (define-mesh header . body)
- (let ((name (car header))
- (args (cdr header)))
- `(define* ,header
+(define-macro (primitive header . body)
+ (let* ((type (car header))
+ (args (cdr header))
+ (list-args (names-arguments args)))
+ `(lambda* ,args
(let ((m (make-mesh
- ',name
+ ',type
(lambda (props)
- (apply (lambda* ,args ,@body)
- ((@ (gacela utils) arguments-apply) ,name props))))))
- (mesh-properties-set! m (list ,@(map (lambda (a) `(cons ',a ,a)) (names-arguments args))))
+ (apply (lambda* ,(cons #:key list-args) ,@body)
+ (list
+ ,@(let get-params ((l list-args))
+ (cond ((null? l) '())
+ (else
+ (cons (symbol->keyword (car l))
+ (cons `(assoc-ref props ',(car l))
+ (get-params (cdr l)))))))))))))
+ (mesh-properties-set! m (list ,@(map (lambda (a) `(cons ',a ,a)) list-args)))
m))))
-(define-mesh (square size #:key texture color)
- (draw-square size #:texture texture #:color color))
+(define-macro (define-primitive header . body)
+ `(define ,(car header) (primitive ,header ,@body)))
+
+
+;;; Primitives definition
+
+(define-primitive (square size #:key texture)
+ (draw-square size #:texture texture))
+
+(define-primitive (rectangle width height #:key texture texture-coord)
+ (draw-rectangle width height #:texture texture #:texture-coord texture-coord))
+
+(define-primitive (circle radius)
+ (draw-circle radius))
+
+(define-primitive (picture filename #:key (min-filter GL_LINEAR) (mag-filter GL_LINEAR) (zoom 1) (sprite '((0 0) (1 1))))
+ (draw-texture (load-texture filename #:min-filter min-filter #:mag-filter mag-filter) #:zoom zoom #:sprite sprite))
(module-map (lambda (sym var)
(if (not (eq? sym '%module-public-interface))
(module-export! (current-module) (list sym))))
- (current-module))
+ (current-module))
\ No newline at end of file
projects / gacela.git / blobdiff