X-Git-Url: https://git.jsancho.org/?p=gacela.git;a=blobdiff_plain;f=src%2Fvideo.scm;h=1d423bbf9a2a38328e4ea0564cc333c03aeac718;hp=06e263d913c9b29d2b95054cd2183c86c8fde6cf;hb=c4a087c6e90ceeec5d9d3c164f51877e02609c8b;hpb=f3f295df512f5c2a4668f2d8c38977ea7c650911 diff --git a/src/video.scm b/src/video.scm index 06e263d..1d423bb 100644 --- a/src/video.scm +++ b/src/video.scm @@ -19,12 +19,15 @@ #:use-module (gacela sdl) ; #: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 @@ -49,7 +52,7 @@ get-current-color set-current-color with-color - progn-textures + with-textures draw load-texture load-texture-without-cache @@ -170,20 +173,20 @@ (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)) - (glHint (hint-target perspective-correction-hint) (hint-mode nicest))) + (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 @@ -211,58 +214,22 @@ (SDL_Delay (- time-per-frame frame-time)))))) -;;; 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)) - (glColor4f red green blue alpha)) +;;; Textures -(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 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)) - (gl-enable GL_TEXTURE_2D) + (gl-enable (oes-framebuffer-object texture-2d)) (set! result (begin ,@code)) - (gl-disable 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 @@ -286,33 +253,73 @@ (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 @@ -323,23 +330,21 @@ (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)))) @@ -359,22 +364,22 @@ 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?) @@ -383,15 +388,15 @@ (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)))) @@ -418,7 +423,7 @@ (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 @@ -453,7 +458,7 @@ (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) @@ -470,7 +475,7 @@ (list (lambda () "draw" - (glmatrix-block + (with-gl-push-matrix (grotate ax ay az) (gtranslate px py pz) (grotate rx ry rz) @@ -562,7 +567,7 @@ (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 @@ -601,7 +606,7 @@ (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))