(define-module (gacela video)
#:use-module (gacela sdl)
- #:use-module (gacela gl)
+; #:use-module (gacela gl)
+ #:use-module (figl gl)
+ #:use-module (figl glx)
+ #:use-module (figl glu)
#:use-module (gacela ftgl)
#:use-module (gacela math)
#:use-module (gacela utils)
#:use-module (ice-9 optargs)
#:use-module (ice-9 receive)
+ #:use-module (srfi srfi-9)
+ #:use-module (system foreign)
#:export (init-video
get-screen-height
get-screen-width
get-current-color
set-current-color
with-color
- progn-textures
+ with-textures
draw
load-texture
load-texture-without-cache
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 (enable-cap 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)
+ (set-gl-clear-depth 1)
+ (gl-enable (enable-cap depth-test))
+ (set-gl-depth-function (depth-function lequal))
(resize-screen-GL (get-screen-width) (get-screen-height)))
(define (3d-mode?)
(define (init-gl)
- (glShadeModel GL_SMOOTH)
- (glClearColor 0 0 0 0)
- (glEnable GL_BLEND)
- (glBlendFunc GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA)
- (glHint GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST))
+ (set-gl-shade-model (shading-model smooth))
+ (set-gl-clear-color 0 0 0 0)
+ (gl-enable (enable-cap blend))
+ (set-gl-blend-function (blending-factor-dest src-alpha) (blending-factor-dest one-minus-src-alpha))
+ (set-gl-hint (hint-target perspective-correction-hint) (hint-mode nicest)))
(define (resize-screen-GL width height)
- (glViewport 0 0 width height)
- (glMatrixMode GL_PROJECTION)
- (glLoadIdentity)
+ (gl-viewport 0 0 width height)
+ (set-gl-matrix-mode (matrix-mode projection))
+ (gl-load-identity)
(cond ((3d-mode?)
(let ((ratio (if (= height 0) width (/ width height))))
- (gluPerspective 45 ratio 0.1 100)))
+ (glu-perspective 45 ratio 0.1 100)))
(else
(let* ((w (/ width 2)) (h (/ height 2)))
- (glOrtho (- w) w (- h) h 0 1))))
- (glMatrixMode GL_MODELVIEW)
- (glLoadIdentity))
+ (gl-ortho (- w) w (- h) h 0 1))))
+ (set-gl-matrix-mode (matrix-mode modelview))
+ (gl-load-identity))
;;; Frames per second
(SDL_Delay (- time-per-frame frame-time))))))
-;;; Drawing
-
-(define current-color '(1 1 1 1))
-
-(define (get-current-color)
- current-color)
+;;; Textures
-(define* (set-current-color red green blue #:optional (alpha 1))
- (set! current-color (list red green blue alpha))
- (glColor4f red green blue alpha))
-
-(define-macro (with-color color . code)
- `(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))))
+(define-record-type <texture>
+ (texture id width height)
+ texture?
+ (id texture-id)
+ (width texture-width set-texture-width)
+ (height texture-height set-texture-height))
-(define-macro (progn-textures . code)
+(define-macro (with-textures . code)
`(let ((result #f))
- (glEnable GL_TEXTURE_2D)
+ (gl-enable (oes-framebuffer-object texture-2d))
(set! result (begin ,@code))
- (glDisable GL_TEXTURE_2D)
+ (gl-disable (oes-framebuffer-object texture-2d))
result))
-(define (draw . vertexes)
- (begin-draw (length vertexes))
- (draw-vertexes vertexes)
- (glEnd))
-
-(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_POLYGON))))
-
-(define (draw-vertexes vertexes)
- (cond ((not (null? vertexes))
- (draw-vertex (car vertexes))
- (draw-vertexes (cdr vertexes)))))
-
-(define* (draw-vertex vertex #:key texture-coord)
- (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))
- (else (glVertex2f x y))))
-
(define (load-image filename)
(let ((image (IMG_Load filename)))
(cond (image
(else (let ((zoomx (/ (+ width 0.5) old-width)) (zoomy (/ (+ height 0.5) old-height)))
(zoomSurface surface zoomx zoomy 0))))))
-(define* (load-texture-without-cache filename #:key (min-filter GL_LINEAR) (mag-filter GL_LINEAR))
- (progn-textures
+(define* (load-texture-without-cache filename #:key (min-filter (texture-min-filter linear)) (mag-filter (texture-mag-filter linear)))
+ (with-textures
(receive
(image real-w real-h) (load-image-for-texture filename)
(cond (image
- (let ((width (surface-w image)) (height (surface-h image))
- (byteorder (if (= SDL_BYTEORDER SDL_LIL_ENDIAN)
- (if (= (surface-format-BytesPerPixel image) 3) GL_BGR GL_BGRA)
- (if (= (surface-format-BytesPerPixel image) 3) GL_RGB GL_RGBA)))
- (texture (car (glGenTextures 1))))
-
- (glBindTexture GL_TEXTURE_2D texture)
- (glTexImage2D GL_TEXTURE_2D 0 4 width height 0 byteorder GL_UNSIGNED_BYTE (surface-pixels image))
- (glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MIN_FILTER min-filter)
- (glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MAG_FILTER mag-filter)
- (set-texture-size! texture real-w real-h)
- texture))))))
+ (let ((width (surface-w image)) (height (surface-h image))
+ (byteorder (if (= SDL_BYTEORDER SDL_LIL_ENDIAN)
+ (if (= (surface-format-BytesPerPixel image) 3) (ext-bgra bgr-ext) (ext-bgra bgra-ext))
+ (if (= (surface-format-BytesPerPixel image) 3) (pixel-format rgb) (pixel-format rgba))))
+ (texture-id (gl-generate-texture))
+ (image-pointer (make-pointer
+ (if (> (surface-pixels image) 0)
+ (surface-pixels image)
+ (+ ($expt 2 32) (surface-pixels image))))))
+
+ (gl-bind-texture (oes-framebuffer-object texture-2d) texture-id)
+ (set-gl-texture-image (oes-framebuffer-object texture-2d) 0 4 0 byteorder (data-type unsigned-byte) image-pointer width height)
+ (set-gl-texture-parameter (oes-framebuffer-object texture-2d) (texture-parameter-name texture-min-filter) min-filter)
+ (set-gl-texture-parameter (oes-framebuffer-object texture-2d) (texture-parameter-name texture-mag-filter) mag-filter)
+ (texture texture-id real-w real-h)))))))
(define load-texture (use-cache-with load-texture-without-cache))
-(define (get-texture-properties texture)
- `((width . ,(texture-w texture)) (height . ,(texture-h texture))))
+
+;;; Drawing
+
+(define current-color '(1 1 1 1))
+
+(define (get-current-color)
+ current-color)
+
+(define* (set-current-color red green blue #:optional (alpha 1))
+ (set! current-color (list red green blue alpha))
+ (gl-color red green blue alpha))
+
+(define-macro (with-color color . code)
+ `(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))))
+
+(define (draw . vertexes)
+ (gl-begin
+ (let ((number-of-points (length vertexes)))
+ (cond ((= number-of-points 2) (begin-mode lines))
+ ((= number-of-points 3) (begin-mode triangles))
+ ((= number-of-points 4) (begin-mode quads))
+ ((> number-of-points 4) (begin-mode polygon))))
+ (draw-vertexes vertexes)))
+
+(define (draw-vertexes vertexes)
+ (cond ((not (null? vertexes))
+ (apply draw-vertex (if (list? (caar vertexes)) (car vertexes) (list (car vertexes))))
+ (draw-vertexes (cdr vertexes)))))
+
+(define* (draw-vertex vertex #:key texture-coord)
+ (cond (texture-coord (apply gl-texture-coordinates texture-coord)))
+ (apply gl-vertex vertex))
(define* (draw-texture texture #:key (zoom 1) (sprite '((0 0) (1 1))))
(cond (texture
- (let ((width (texture-w texture))
- (height (texture-h texture)))
+ (let ((width (texture-width texture))
+ (height (texture-height texture)))
(draw-rectangle (* zoom width (- (caadr sprite) (caar sprite)))
(* zoom height (- (cadadr sprite) (cadar sprite)))
#:texture texture
(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))
+ (gl-begin
+ (begin-mode polygon)
+ (do ((i 0 (1+ i)))
+ ((>= i 360))
+ (let ((a (degrees-to-radians i)))
+ (draw-vertex (list (* radius (cos a)) (* radius (sin a))))))))
(define* (draw-quad v1 v2 v3 v4 #:key texture (texture-coord '((0 0) (1 1))))
(cond (texture
- (progn-textures
- (glBindTexture GL_TEXTURE_2D texture)
- (begin-draw 4)
- (draw-vertex v1 #:texture-coord (car texture-coord))
- (draw-vertex v2 #:texture-coord (list (caadr texture-coord) (cadar texture-coord)))
- (draw-vertex v3 #:texture-coord (cadr texture-coord))
- (draw-vertex v4 #:texture-coord (list (caar texture-coord) (cadadr texture-coord)))
- (glEnd)))
+ (with-textures
+ (gl-bind-texture (oes-framebuffer-object texture-2d) (texture-id texture))
+ (draw (list v1 #:texture-coord (car texture-coord))
+ (list v2 #:texture-coord (list (caadr texture-coord) (cadar texture-coord)))
+ (list v3 #:texture-coord (cadr texture-coord))
+ (list v4 #:texture-coord (list (caar texture-coord) (cadadr texture-coord))))))
(else
(draw v1 v2 v3 v4))))
texture texture-1 texture-2 texture-3 texture-4 texture-5 texture-6
color-1 color-2 color-3 color-4 color-5 color-6)
(let ((-size (- size)))
- (progn-textures
- (glNormal3f 0 0 1)
+ (with-textures
+ (gl-normal 0 0 1)
(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)
+ (gl-normal 0 0 -1)
(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)
+ (gl-normal 0 1 0)
(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)
+ (gl-normal 0 -1 0)
(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)
+ (gl-normal 1 0 0)
(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)
+ (gl-normal -1 0 0)
(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))
+ (gl-translate x y z))
(define (grotate . rot)
(cond ((3d-mode?)
(2d-rotate (car (last-pair rot))))))
(define (3d-rotate xrot yrot zrot)
- (glRotatef xrot 1 0 0)
- (glRotatef yrot 0 1 0)
- (glRotatef zrot 0 0 1))
+ (gl-rotate xrot 1 0 0)
+ (gl-rotate yrot 0 1 0)
+ (gl-rotate zrot 0 0 1))
(define (2d-rotate rot)
- (glRotatef rot 0 0 1))
+ (gl-rotate rot 0 0 1))
(define (to-origin)
- (glLoadIdentity)
+ (gl-load-identity)
(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)
(cond (up (set! camera-up up))))
(define (camera-look)
- (apply gluLookAt (append camera-eye camera-center camera-up)))
+ (apply glu-look-at (append camera-eye camera-center camera-up)))
;;; Text and fonts
(define mesh? (record-predicate mesh-type))
-(define* (make-mesh type proc)
+(define (make-mesh type proc)
(apply
(record-constructor mesh-type)
(let ((px 0) (py 0) (pz 0)
(list
(lambda ()
"draw"
- (glmatrix-block
+ (with-gl-push-matrix
(grotate ax ay az)
(gtranslate px py pz)
(grotate rx ry rz)
(make-mesh
'joined-meshes
(lambda (props)
- (for-each (lambda (m) (glmatrix-block (mesh-draw m))) meshes))))
+ (for-each (lambda (m) (with-gl-push-matrix (mesh-draw m))) meshes))))
;;; Primitives
(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))))
+(define-primitive (picture filename #:key (min-filter (texture-min-filter linear)) (mag-filter (texture-mag-filter 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))
projects / gacela.git / blobdiff