1 /* jigglypuff - a most, most, unfortunate screensaver.
3 * Copyright (c) 2003 Keith Macleod (kmacleod@primus.ca)
5 * Permission to use, copy, modify, distribute, and sell this software and its
6 * documentation for any purpose is hereby granted without fee, provided that
7 * the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation. No representations are made about the suitability of this
10 * software for any purpose. It is provided "as is" without express or
13 * Draws all varieties of obscene, spastic, puffy balls
14 * orbiting lazily about the screen. More of an accident
17 * Apologies to anyone who thought they were getting a Pokemon
20 * Of course, if you modify it to do something interesting and/or
21 * funny, I'd appreciate receiving a copy.
23 * 04/06/2003 - Oops, figured out what was wrong with the sphere
24 * mapping. I had assumed it was done in model space,
25 * but of course I was totally wrong... Eye space you
28 * 03/31/2003 - Added chrome to the color options. The mapping
29 * is anything but 'correct', but it's a pretty good
30 * effect anyways, as long as the surface is jiggling
31 * enough that you can't tell. Sure, it seems kind of odd
32 * that it's reflecting a sky that's obviously not there,
33 * but who has time to worry about silly details like
34 * that? Not me, ah rekkin'. km
39 # define DEFAULTS "*delay: 20000\n" \
41 "*wireframe: False\n" \
43 # define refresh_jigglypuff 0
44 # define release_jigglypuff 0
45 # include "xlockmore.h"
54 #include "xpm-ximage.h"
55 #include "gltrackball.h"
56 #include "../images/jigglymap.xpm"
61 #define DEF_COLOR "cycle"
62 #define DEF_SHININESS "100"
63 #define DEF_COMPLEXITY "2"
64 #define DEF_SPEED "500"
65 #define DEF_DISTANCE "100"
66 #define DEF_HOLD "800"
67 #define DEF_SPHERISM "75"
68 #define DEF_DAMPING "500"
69 #define DEF_RANDOM "True"
70 #define DEF_TETRA "False"
71 #define DEF_SPOOKY "0"
74 #define max(a,b) (((a)>(b))?(a):(b))
75 #define min(a,b) (((a)<(b))?(a):(b))
78 /* Why isn't RAND_MAX correct in the first place? */
79 #define REAL_RAND_MAX (2.0*(float)RAND_MAX)
86 static int complexity;
89 static int do_tetrahedron;
94 static int random_parms;
96 typedef struct solid solid;
99 float stable_distance;
101 float spherify_strength;
102 float damping_velocity;
103 float damping_factor;
109 GLfloat jiggly_color[4];
110 GLfloat color_dir[3];
114 trackball_state *trackball;
121 GLXContext *glx_context;
124 static jigglystruct *jss = NULL;
126 static XrmOptionDescRec opts[] = {
127 {"-random", ".Jigglypuff.random", XrmoptionNoArg, "true"},
128 {"+random", ".Jigglypuff.random", XrmoptionNoArg, "false"},
129 {"-tetra", ".Jigglypuff.tetra", XrmoptionNoArg, "true"},
130 {"+tetra", ".Jigglypuff.tetra", XrmoptionNoArg, "false"},
131 {"-spooky", ".Jigglypuff.spooky", XrmoptionSepArg, "0"},
132 {"-color", ".Jigglypuff.color", XrmoptionSepArg, DEF_COLOR},
133 {"-shininess", ".Jigglypuff.shininess", XrmoptionSepArg, DEF_SHININESS},
134 {"-complexity", ".Jigglypuff.complexity", XrmoptionSepArg, DEF_COMPLEXITY},
135 {"-speed", ".Jigglypuff.speed", XrmoptionSepArg, DEF_SPEED},
136 {"-spherism", ".Jigglypuff.spherism", XrmoptionSepArg, DEF_SPHERISM},
137 {"-hold", ".Jigglypuff.hold", XrmoptionSepArg, DEF_HOLD},
138 {"-distance", "Jigglypuff.distance", XrmoptionSepArg, DEF_DISTANCE},
139 {"-damping", "Jigglypuff.damping", XrmoptionSepArg, DEF_DAMPING}
142 static argtype vars[] = {
143 {&random_parms, "random", "Random", DEF_RANDOM, t_Bool},
144 {&do_tetrahedron, "tetra", "Tetra", DEF_TETRA, t_Bool},
145 {&spooky, "spooky", "Spooky", DEF_SPOOKY, t_Int},
146 {&color, "color", "Color", DEF_COLOR, t_String},
147 {&shininess, "shininess", "Shininess", DEF_SHININESS, t_Int},
148 {&complexity, "complexity", "Complexity", DEF_COMPLEXITY, t_Int},
149 {&speed, "speed", "Speed", DEF_SPEED, t_Int},
150 {&spherism, "spherism", "Spherism", DEF_SPHERISM, t_Int},
151 {&hold, "hold", "Hold", DEF_HOLD, t_Int},
152 {&distance, "distance", "Distance", DEF_DISTANCE, t_Int},
153 {&damping, "damping", "Damping", DEF_DAMPING, t_Int}
157 #define countof(x) ((int)(sizeof(x)/sizeof(*(x))))
159 ENTRYPOINT ModeSpecOpt jigglypuff_opts = {countof(opts), opts, countof(vars), vars, NULL};
161 #define COLOR_STYLE_NORMAL 0
162 #define COLOR_STYLE_CYCLE 1
163 #define COLOR_STYLE_CLOWNBARF 2
164 #define COLOR_STYLE_FLOWERBOX 3
165 #define COLOR_STYLE_CHROME 4
167 #define CLOWNBARF_NCOLORS 5
169 static const GLfloat clownbarf_colors[CLOWNBARF_NCOLORS][4] = {
170 {0.7, 0.7, 0.0, 1.0},
171 {0.8, 0.1, 0.1, 1.0},
172 {0.1, 0.1, 0.8, 1.0},
173 {0.9, 0.9, 0.9, 1.0},
177 static const GLfloat flowerbox_colors[4][4] = {
178 {0.7, 0.7, 0.0, 1.0},
179 {0.9, 0.0, 0.0, 1.0},
180 {0.0, 0.9, 0.0, 1.0},
181 {0.0, 0.0, 0.9, 1.0},
184 # if 0 /* I am not even going to *try* and make this bullshit compile
185 without warning under gcc -std=c89 -pedantic. -jwz. */
187 # ifdef __GNUC__ /* GCC style */
188 #define _DEBUG(msg, args...) do { \
189 fprintf(stderr, "%s : %d : " msg ,__FILE__,__LINE__ ,##args); \
191 # else /* C99 standard style */
192 #define _DEBUG(msg, ...) do { \
193 fprintf(stderr, "%s : %d : " msg ,__FILE__,__LINE__,__VA_ARGS__); \
197 # ifdef __GNUC__ /* GCC style */
198 #define _DEBUG(msg, args...)
199 # else /* C99 standard style */
200 #define _DEBUG(msg, ...)
205 /* This is all the half-edge b-rep code (as well as basic geometry) */
206 typedef struct face face;
207 typedef struct edge edge;
208 typedef struct hedge hedge;
209 typedef struct vertex vertex;
210 typedef GLfloat coord;
211 typedef coord vector[3];
222 const GLfloat *color;
251 static inline void vector_init(vector v, coord x, coord y, coord z)
258 static inline void vector_copy(vector d, vector s)
265 static inline void vector_add(vector v1, vector v2, vector v)
267 vector_init(v, v1[0]+v2[0], v1[1]+v2[1], v1[2]+v2[2]);
270 static inline void vector_add_to(vector v1, vector v2)
277 static inline void vector_sub(vector v1, vector v2, vector v)
279 vector_init(v, v1[0]-v2[0], v1[1]-v2[1], v1[2]-v2[2]);
282 static inline void vector_scale(vector v, coord s)
289 static inline coord dot(vector v1, vector v2)
291 return v1[0]*v2[0] + v1[1]*v2[1] + v1[2]*v2[2];
294 static inline void cross(vector v1, vector v2, vector v)
297 v1[1]*v2[2] - v2[1]*v1[2],
298 v1[2]*v2[0] - v2[2]*v1[0],
299 v1[0]*v2[1] - v2[0]*v1[1]);
302 static inline coord magnitude2(vector v)
304 return v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
307 static inline coord magnitude(vector v)
309 return sqrt(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
312 static inline void normalize(vector v)
314 coord mag = 1.0/sqrt(v[0]*v[0]+v[1]*v[1]+v[2]*v[2]);
321 static inline void normalize_to(vector v, coord m)
323 coord mag = 1.0/sqrt(v[0]*v[0]+v[1]*v[1]+v[2]*v[2])/m;
330 static inline void midpoint(vector v1, vector v2, vector v)
333 v1[0] + 0.5 * (v2[0] - v1[0]),
334 v1[1] + 0.5 * (v2[1] - v1[1]),
335 v1[2] + 0.5 * (v2[2] - v1[2]));
338 static inline hedge *partner(hedge *h) {
341 if(h == h->e->left) {
344 else if(h == h->e->right) {
348 /* _DEBUG("Inconsistent edge detected. Presumably, this is a bug. Exiting.\n", NULL); */
353 static vertex *vertex_new(solid *s, vector v)
355 vertex *vtx = (vertex*)malloc(sizeof(vertex));
360 vtx->next = s->vertices;
362 vector_copy(vtx->v, v);
363 vector_init(vtx->f, 0, 0, 0);
364 vector_init(vtx->vel, 0, 0, 0);
368 /* insert a new halfedge after hafter. this is low-level,
369 * i.e. it is a helper for the split_* functions, which
370 * maintain the consistency of the solid.
372 static hedge *hedge_new(hedge *hafter, vertex *vtx)
374 hedge *h = (hedge*)malloc(sizeof(hedge));
377 /* _DEBUG("Out of memory in hedge_new()\n",NULL); */
384 h->next = hafter->next;
390 static edge *edge_new(solid *s)
392 edge *e = (edge*)malloc(sizeof(edge));
394 /* _DEBUG("Out of memory in edge_new()\n",NULL);*/
400 e->left = e->right = NULL;
404 static face *face_new(solid *s, hedge *h)
406 face *f = (face*)malloc(sizeof(face));
408 /* _DEBUG("Out of memory in face_new()",NULL);*/
418 /* split vertex vtx, creating a new edge after v on f
419 * that goes to a new vertex at v, adjoining whatever
420 * face is on the other side of the halfedge attached to
423 * there are at least 2 faces.
424 * partner(h)->next->vtx == vtx
426 * the new halfedge will be inserted AFTER the indicated
427 * halfedge. This means that f->start is guaranteed not to
429 * the vertex returned will have h==<the new halfedge>.
432 static vertex *vertex_split(hedge *h, vector v)
434 hedge *h2, *hn1, *hn2;
442 vtxn = vertex_new(f1->s, v);
443 hn1 = hedge_new(h, vtxn);
445 hn2 = hedge_new(h2, vtxn);
448 if(h2->e->left == h2)
453 en = edge_new(f1->s);
461 static face *face_split(face *f, hedge *h1, hedge *h2)
463 hedge *hn1, *hn2, *tmp;
467 if(h1->f != f || h2->f != f) {
468 /* _DEBUG("Whoah, cap'n, yer usin' a bad halfedge!\n",NULL);*/
472 /* _DEBUG("Trying to split a face at a single vertex\n",NULL);*/
475 /* close the loops */
481 /* insert halfedges & create edge */
482 hn1 = hedge_new(h2->prev, h1->vtx);
483 hn2 = hedge_new(h1->prev, h2->vtx);
490 /* make the new face, first find out which hedge is contained
491 * in the original face, then start the new face at the other */
493 while(tmp != h1 && tmp != h2)
495 tmp = (tmp == h1) ? h2 : h1 ;
496 fn = face_new(f->s, tmp);
500 } while(tmp != fn->start);
501 fn->color = f->color;
505 static solid *solid_new(vector where)
507 solid *s = (solid*)malloc(sizeof(solid));
517 h1 = (hedge*)malloc(sizeof(hedge));
518 h2 = (hedge*)malloc(sizeof(hedge));
519 h1->next = h1->prev = h1;
520 h2->next = h2->prev = h2;
522 vtx = vertex_new(s, where);
533 f1 = face_new(s, h1);
534 f2 = face_new(s, h2);
541 /* This is all the code directly related to constructing the jigglypuff */
542 static void face_tessel2(face *f)
544 hedge *h1=f->start->prev, *h2=f->start->next;
548 while(h2 != h1 && h2->next != h1) {
549 f = face_split(f, h1, h2);
551 h2 = f->start->next->next;
555 /* This will only work with solids composed entirely of
556 * triangular faces. It first add a vertex to the middle
557 * of each edge, then walks the faces, connecting the
559 * I'm abusing the fact that new faces and edges are always
560 * added at the head of the list. If that ever changes,
563 static void solid_tesselate(solid *s)
570 midpoint(e->left->vtx->v, e->right->vtx->v, v);
571 vertex_split(e->left, v);
580 static void solid_spherify(solid * s, coord size)
582 vertex *vtx = s->vertices;
585 normalize_to(vtx->v, size);
590 static solid *tetrahedron(jigglystruct *js)
599 vector_init(v, 1, 1, 1);
601 vector_init(v, -1, -1, 1);
603 vtx = vertex_split(h, v);
604 vector_init(v, -1, 1, -1);
605 vtx = vertex_split(vtx->h, v);
607 f = face_split(s->faces, h, h->prev);
608 vector_init(v, 1, -1, -1);
609 vertex_split(f->start, v);
610 f = s->faces->next->next;
612 face_split(f, h, h->next->next);
614 if(js->color_style == COLOR_STYLE_FLOWERBOX) {
617 f->color = flowerbox_colors[i];
625 static solid *tesselated_tetrahedron(coord size, int iter, jigglystruct *js) {
626 solid *s = tetrahedron(js);
629 for(i=0; i<iter; i++) {
635 static void clownbarf_colorize(solid *s) {
638 f->color = clownbarf_colors[random() % CLOWNBARF_NCOLORS];
643 /* Here be the rendering code */
645 static inline void vertex_calcnormal(vertex *vtx, jigglystruct *js)
647 hedge *start = vtx->h, *h=start;
649 vector_init(vtx->n, 0, 0, 0);
652 vector_sub(h->prev->vtx->v, vtx->v, u);
653 vector_sub(h->next->vtx->v, vtx->v, v);
655 vector_add_to(vtx->n, norm);
656 h = partner(h)->next;
661 vector_scale(vtx->n, js->spooky);
664 static inline void vertex_render(vertex *vtx, jigglystruct *js)
670 /* This can be optimized somewhat due to the fact that all
671 * the faces are triangles. I haven't actually tested to
672 * see what the cost is of calling glBegin/glEnd for each
675 static inline int face_render(face *f, jigglystruct *js)
677 hedge *h1, *h2, *hend;
684 if(js->color_style == COLOR_STYLE_FLOWERBOX ||
685 js->color_style == COLOR_STYLE_CLOWNBARF)
686 glColor4fv(f->color);
687 glBegin(GL_TRIANGLES);
688 while(h1 != hend && h2 !=hend) {
689 vertex_render(h1->vtx, js);
690 vertex_render(h2->vtx, js);
691 vertex_render(hend->vtx, js);
700 static int jigglypuff_render(jigglystruct *js)
703 face *f = js->shape->faces;
704 vertex *vtx = js->shape->vertices;
707 vertex_calcnormal(vtx, js);
711 polys += face_render(f, js);
717 /* This is the jiggling code */
719 /* stable distance when subdivs == 4 */
720 #define STABLE_DISTANCE 0.088388347648
722 static void update_shape(jigglystruct *js)
724 vertex *vtx = js->shape->vertices;
725 edge *e = js->shape->edges;
728 vector_init(zero, 0, 0, 0);
730 /* sum all the vertex-vertex forces */
734 vector_sub(e->left->vtx->v, e->right->vtx->v, f);
735 mag = js->stable_distance - magnitude(f);
736 vector_scale(f, mag);
737 vector_add_to(e->left->vtx->f, f);
738 vector_sub(zero, f, f);
739 vector_add_to(e->right->vtx->f, f);
743 /* scale back the v-v force and add the spherical force
744 * then add the result to the vertex velocity, damping
745 * if necessary. Finally, move the vertex */
749 vector_scale(vtx->f, js->hold_strength);
750 vector_copy(to_sphere, vtx->v);
751 mag = 1 - magnitude(to_sphere);
752 vector_scale(to_sphere, mag * js->spherify_strength);
753 vector_add_to(vtx->f, to_sphere);
754 vector_add_to(vtx->vel, vtx->f);
755 vector_init(vtx->f, 0, 0, 0);
756 mag = magnitude2(vtx->vel);
757 if(mag > js->damping_velocity)
758 vector_scale(vtx->vel, js->damping_factor);
759 vector_add_to(vtx->v, vtx->vel);
764 /* These are the various initialization routines */
766 static void init_texture(ModeInfo *mi)
768 XImage *img = xpm_to_ximage(mi->dpy, mi->xgwa.visual,
769 mi->xgwa.colormap, jigglymap_xpm);
771 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
772 img->width, img->height, 0, GL_RGBA,
773 GL_UNSIGNED_BYTE, img->data);
778 static void setup_opengl(ModeInfo *mi, jigglystruct *js)
780 const GLfloat lpos0[4] = {-12, 8, 12, 0};
781 const GLfloat lpos1[4] = {7, -5, 0, 0};
782 const GLfloat lcol0[4] = {0.7f, 0.7f, 0.65f, 1};
783 const GLfloat lcol1[4] = {0.3f, 0.2f, 0.1f, 1};
784 const GLfloat scolor[4]= {0.9f, 0.9f, 0.9f, 0.5f};
786 glDrawBuffer(GL_BACK);
787 glShadeModel(GL_SMOOTH);
788 glEnable(GL_DEPTH_TEST);
790 if(js->do_wireframe) {
791 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
796 glEnable(GL_CULL_FACE);
799 if(js->color_style != COLOR_STYLE_CHROME) {
800 glEnable(GL_LIGHTING);
804 glLightfv(GL_LIGHT0, GL_POSITION, lpos0);
805 glLightfv(GL_LIGHT1, GL_POSITION, lpos1);
806 glLightfv(GL_LIGHT0, GL_DIFFUSE, lcol0);
807 glLightfv(GL_LIGHT1, GL_DIFFUSE, lcol1);
809 glEnable(GL_COLOR_MATERIAL);
810 glColor4fv(js->jiggly_color);
812 glMaterialfv(GL_FRONT, GL_SPECULAR, scolor);
813 glMateriali(GL_FRONT, GL_SHININESS, js->shininess);
817 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
818 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
819 glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
820 glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
821 glEnable(GL_TEXTURE_GEN_S);
822 glEnable(GL_TEXTURE_GEN_T);
823 glEnable(GL_TEXTURE_2D);
824 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
825 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
826 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
830 static int parse_color(jigglystruct *js)
832 unsigned int r, g, b;
833 if(!strcmp(color, "clownbarf")) {
834 js->color_style = COLOR_STYLE_CLOWNBARF;
837 else if(!strcmp(color, "flowerbox")) {
838 js->color_style = COLOR_STYLE_FLOWERBOX;
841 # ifndef HAVE_JWZGLES /* SPHERE_MAP unimplemented */
842 else if(!strcmp(color, "chrome")) {
843 js->color_style = COLOR_STYLE_CHROME;
847 else if(!strcmp(color, "cycle")) {
848 js->color_style = COLOR_STYLE_CYCLE;
849 js->jiggly_color[0] = ((float)random()) / REAL_RAND_MAX * 0.7 + 0.3;
850 js->jiggly_color[1] = ((float)random()) / REAL_RAND_MAX * 0.7 + 0.3;
851 js->jiggly_color[2] = ((float)random()) / REAL_RAND_MAX * 0.7 + 0.3;
852 js->jiggly_color[3] = 1.0f;
853 js->color_dir[0] = ((float)random()) / REAL_RAND_MAX / 100.0;
854 js->color_dir[1] = ((float)random()) / REAL_RAND_MAX / 100.0;
855 js->color_dir[2] = ((float)random()) / REAL_RAND_MAX / 100.0;
860 if(strlen(color) != 7)
862 if(sscanf(color,"#%02x%02x%02x", &r, &g, &b) != 3) {
865 js->jiggly_color[0] = ((float)r)/255;
866 js->jiggly_color[1] = ((float)g)/255;
867 js->jiggly_color[2] = ((float)b)/255;
868 js->jiggly_color[3] = 1.0f;
873 static void randomize_parameters(jigglystruct *js) {
874 do_tetrahedron = random() & 1;
875 # ifndef HAVE_JWZGLES /* #### glPolygonMode other than GL_FILL unimplemented */
876 js->do_wireframe = !(random() & 3);
878 js->color_style = random() % 5;
879 # ifdef HAVE_JWZGLES /* #### SPHERE_MAP unimplemented */
880 while (js->color_style == COLOR_STYLE_CHROME)
881 js->color_style = random() % 5;;
883 if(js->color_style == COLOR_STYLE_NORMAL
884 || js->color_style == COLOR_STYLE_CYCLE) {
885 js->jiggly_color[0] = ((float)random()) / REAL_RAND_MAX * 0.5 + 0.5;
886 js->jiggly_color[1] = ((float)random()) / REAL_RAND_MAX * 0.5 + 0.5;
887 js->jiggly_color[2] = ((float)random()) / REAL_RAND_MAX * 0.5 + 0.5;
888 js->jiggly_color[3] = 1.0f;
889 if(js->color_style == COLOR_STYLE_CYCLE) {
890 js->color_dir[0] = ((float)random()) / REAL_RAND_MAX / 100.0;
891 js->color_dir[1] = ((float)random()) / REAL_RAND_MAX / 100.0;
892 js->color_dir[2] = ((float)random()) / REAL_RAND_MAX / 100.0;
895 if((js->color_style != COLOR_STYLE_CHROME) && (random() & 1))
896 js->spooky = (random() % 6) + 4;
899 js->shininess = random() % 200;
900 speed = (random() % 700) + 50;
901 /* It' kind of dull if this is too high when it starts as a sphere */
902 spherism = do_tetrahedron ? (random() % 500) + 20 : (random() % 100) + 10;
903 hold = (random() % 800) + 100;
904 distance = (random() % 500) + 100;
905 damping = (random() % 800) + 50;
908 static void calculate_parameters(jigglystruct *js, int subdivs) {
909 /* try to compensate for the inherent instability at
911 float dist_factor = (subdivs == 6) ? 2 : (subdivs == 5) ? 1 : 0.5;
913 js->stable_distance = ((float)distance / 500.0)
914 * (STABLE_DISTANCE / dist_factor);
915 js->hold_strength = (float)hold / 10000.0;
916 js->spherify_strength = (float)spherism / 10000.0;
917 js->damping_velocity = (float)damping / 100000.0;
919 0.001/max(js->hold_strength, js->spherify_strength);
921 js->speed = (float)speed / 1000.0;
924 /* The screenhack related functions begin here */
926 ENTRYPOINT Bool jigglypuff_handle_event(ModeInfo *mi, XEvent *event)
928 jigglystruct *js = &jss[MI_SCREEN(mi)];
930 if(event->xany.type == ButtonPress &&
931 event->xbutton.button == Button1) {
933 gltrackball_start(js->trackball, event->xbutton.x, event->xbutton.y,
934 MI_WIDTH(mi), MI_HEIGHT(mi));
937 else if(event->xany.type == ButtonRelease &&
938 event->xbutton.button == Button1) {
942 else if (event->xany.type == ButtonPress &&
943 (event->xbutton.button == Button4 ||
944 event->xbutton.button == Button5 ||
945 event->xbutton.button == Button6 ||
946 event->xbutton.button == Button7))
948 gltrackball_mousewheel (js->trackball, event->xbutton.button, 10,
949 !!event->xbutton.state);
952 else if(event->xany.type == MotionNotify && js->button_down) {
953 gltrackball_track(js->trackball, event->xmotion.x, event->xmotion.y,
954 MI_WIDTH(mi), MI_HEIGHT(mi));
960 ENTRYPOINT void reshape_jigglypuff(ModeInfo *mi, int width, int height)
962 GLfloat aspect = (GLfloat)width / (GLfloat)height;
964 glViewport(0, 0, width, height);
965 glMatrixMode(GL_PROJECTION);
967 glFrustum(-0.5*aspect, 0.5*aspect, -0.5, 0.5, 1, 20);
968 /* glTranslatef(0, 0, -10);*/
971 ENTRYPOINT void draw_jigglypuff(ModeInfo *mi)
973 jigglystruct *js = &jss[MI_SCREEN(mi)];
975 glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(js->glx_context));
977 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
979 glMatrixMode(GL_MODELVIEW);
981 glTranslatef(0,0,-10);
983 glRotatef(js->angle, sin(js->axis), cos(js->axis), -sin(js->axis));
984 glTranslatef(0, 0, 5);
985 if(!(js->button_down)) {
986 if((js->angle += js->speed) >= 360.0f ) {
989 if((js->axis+=0.01f) >= 2*M_PI ) {
994 /* Do it twice because we don't track the device's orientation. */
995 glRotatef( current_device_rotation(), 0, 0, 1);
996 gltrackball_rotate(js->trackball);
997 glRotatef(-current_device_rotation(), 0, 0, 1);
999 if(js->color_style == COLOR_STYLE_CYCLE) {
1001 vector_add(js->jiggly_color, js->color_dir, js->jiggly_color);
1003 for(i=0; i<3; i++) {
1004 if(js->jiggly_color[i] > 1.0 || js->jiggly_color[i] < 0.3) {
1005 js->color_dir[i] = (-js->color_dir[i]);
1006 js->jiggly_color[i] += js->color_dir[i];
1009 glColor4fv(js->jiggly_color);
1012 mi->polygon_count = jigglypuff_render(js);
1017 glXSwapBuffers(MI_DISPLAY(mi), MI_WINDOW(mi));
1020 ENTRYPOINT void init_jigglypuff(ModeInfo *mi)
1026 jss = (jigglystruct*)
1027 calloc(MI_NUM_SCREENS(mi), sizeof(jigglystruct));
1029 fprintf(stderr, "%s: No..memory...must...abort..\n", progname);
1034 js = &jss[MI_SCREEN(mi)];
1036 js->do_wireframe = MI_IS_WIREFRAME(mi);
1037 # ifdef HAVE_JWZGLES
1038 js->do_wireframe = 0; /* GL_LINE unimplemented */
1041 js->shininess = shininess;
1043 subdivs = (complexity==1) ? 4 : (complexity==2) ? 5
1044 : (complexity==3) ? 6 : 5;
1046 js->spooky = spooky << (subdivs-3);
1048 if(!parse_color(js)) {
1049 fprintf(stderr, "%s: Bad color specification: '%s'.\n", progname, color);
1054 randomize_parameters(js);
1056 js->angle = frand(180);
1057 js->axis = frand(M_PI);
1059 js->shape = tesselated_tetrahedron(1, subdivs, js);
1062 solid_spherify(js->shape, 1);
1064 if(js->color_style == COLOR_STYLE_CLOWNBARF)
1065 clownbarf_colorize(js->shape);
1067 calculate_parameters(js, subdivs);
1069 if((js->glx_context = init_GL(mi)) != NULL) {
1070 glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(js->glx_context));
1071 setup_opengl(mi, js);
1072 reshape_jigglypuff(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
1077 js->trackball = gltrackball_init();
1078 /* _DEBUG("distance : %f\nhold : %f\nspherify : %f\ndamping : %f\ndfact : %f\n",
1079 js->stable_distance, js->hold_strength, js->spherify_strength,
1080 js->damping_velocity, js->damping_factor);
1081 _DEBUG("wire : %d\nspooky : %d\nstyle : %d\nshininess : %d\n",
1082 js->do_wireframe, js->spooky, js->color_style, js->shininess);*/
1085 XSCREENSAVER_MODULE ("JigglyPuff", jigglypuff)
1089 /* This is the end of the file */