6.09HEADmaster

1 files changed, 0 insertions, 1124 deletions

diff --git a/hacks/glx/jigglypuff.c b/hacks/glx/jigglypuff.c
deleted file mode 100644
index 22b8408..0000000
--- a/hacks/glx/jigglypuff.c
+++ /dev/null
@@ -1,1124 +0,0 @@
-/* jigglypuff - a most, most, unfortunate screensaver.
- *
- * Copyright (c) 2003 Keith Macleod (kmacleod@primus.ca)
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation.  No representations are made about the suitability of this
- * software for any purpose.  It is provided "as is" without express or 
- * implied warranty.
- *
- * Draws all varieties of obscene, spastic, puffy balls
- * orbiting lazily about the screen. More of an accident
- * than anything else.
- *
- * Apologies to anyone who thought they were getting a Pokemon
- * out of this.
- *
- * Of course, if you modify it to do something interesting and/or
- * funny, I'd appreciate receiving a copy.
- *
- * 04/06/2003 - Oops, figured out what was wrong with the sphere
- *              mapping. I had assumed it was done in model space,
- *              but of course I was totally wrong... Eye space you
- *              say? Yup. km
- *
- * 03/31/2003 - Added chrome to the color options. The mapping
- *              is anything but 'correct', but it's a pretty good
- *              effect anyways, as long as the surface is jiggling
- *              enough that you can't tell. Sure, it seems  kind of odd
- *              that it's reflecting a sky that's obviously not there,
- *              but who has time to worry about silly details like
- *              that? Not me, ah rekkin'. km
- *
- */
-
-#ifdef STANDALONE
-# define DEFAULTS           "*delay: 20000\n" \
-                            "*showFPS: False\n" \
-                            "*wireframe: False\n" \
-			    "*suppressRotationAnimation: True\n" \
-
-# define release_jigglypuff 0
-# include "xlockmore.h"
-#else
-# include "xlock.h"
-#endif
-
-#include "ximage-loader.h"
-#include "gltrackball.h"
-#include "images/gen/jigglymap_png.h"
-
-#ifdef USE_GL
-
-
-#define DEF_COLOR           "cycle"
-#define DEF_SHININESS       "100"
-#define DEF_COMPLEXITY      "2"
-#define DEF_SPEED           "500"
-#define DEF_DISTANCE        "100"
-#define DEF_HOLD            "800"
-#define DEF_SPHERISM        "75"
-#define DEF_DAMPING         "500"
-#define DEF_RANDOM	    "True"
-#define DEF_TETRA	    "False"
-#define DEF_SPOOKY	    "0"
-
-#ifndef max
-#define max(a,b) (((a)>(b))?(a):(b))
-#define min(a,b) (((a)<(b))?(a):(b))
-#endif
-
-/* Why isn't RAND_MAX correct in the first place? */
-#define REAL_RAND_MAX (2.0*(float)RAND_MAX)
-
-static int spherism;
-static int hold;
-static int distance;
-static int damping;
-
-static int complexity;
-static int speed;
-
-static int do_tetrahedron;
-static int spooky;
-static char *color;
-static int shininess;
-
-static int random_parms;
-
-/* This is all the half-edge b-rep code (as well as basic geometry) */
-typedef struct solid solid;
-typedef struct face face;
-typedef struct edge edge;
-typedef struct hedge hedge;
-typedef struct vertex vertex;
-typedef GLfloat coord;
-typedef coord vector[3];
-
-typedef struct {
-    float stable_distance;
-    float hold_strength;
-    float spherify_strength;
-    float damping_velocity;
-    float damping_factor;
-
-    int do_wireframe;
-    int spooky;
-    int color_style;
-    GLint shininess;
-    GLfloat jiggly_color[4];
-    GLfloat color_dir[3];
-
-    solid *shape;
-
-    trackball_state *trackball;
-    int button_down;
-
-    float angle;
-    float axis;
-    float speed;
-
-    face *faces;
-    edge *edges;
-    hedge *hedges;
-    vertex *vertices;
-
-    GLuint texid;
-
-    GLXContext *glx_context;
-} jigglystruct;
-
-static jigglystruct *jss = NULL;
-
-static XrmOptionDescRec opts[] = {
-    {"-random", ".Jigglypuff.random", XrmoptionNoArg, "true"},
-    {"+random", ".Jigglypuff.random", XrmoptionNoArg, "false"},
-    {"-tetra", ".Jigglypuff.tetra", XrmoptionNoArg, "true"},
-    {"+tetra", ".Jigglypuff.tetra", XrmoptionNoArg, "false"},
-    {"-spooky", ".Jigglypuff.spooky", XrmoptionSepArg, "0"},
-    {"-color", ".Jigglypuff.color", XrmoptionSepArg, DEF_COLOR},
-    {"-shininess", ".Jigglypuff.shininess", XrmoptionSepArg, DEF_SHININESS},
-    {"-complexity", ".Jigglypuff.complexity", XrmoptionSepArg, DEF_COMPLEXITY},
-    {"-speed", ".Jigglypuff.speed", XrmoptionSepArg, DEF_SPEED},
-    {"-spherism", ".Jigglypuff.spherism", XrmoptionSepArg, DEF_SPHERISM},
-    {"-hold", ".Jigglypuff.hold", XrmoptionSepArg, DEF_HOLD},
-    {"-distance", "Jigglypuff.distance", XrmoptionSepArg, DEF_DISTANCE},
-    {"-damping", "Jigglypuff.damping", XrmoptionSepArg, DEF_DAMPING}
-};
-
-static argtype vars[] = {
-    {&random_parms, "random", "Random", DEF_RANDOM, t_Bool},
-    {&do_tetrahedron, "tetra", "Tetra", DEF_TETRA, t_Bool},
-    {&spooky, "spooky", "Spooky", DEF_SPOOKY, t_Int},
-    {&color, "color", "Color", DEF_COLOR, t_String},
-    {&shininess, "shininess", "Shininess", DEF_SHININESS, t_Int},
-    {&complexity, "complexity", "Complexity", DEF_COMPLEXITY, t_Int},
-    {&speed, "speed", "Speed", DEF_SPEED, t_Int},
-    {&spherism, "spherism", "Spherism", DEF_SPHERISM, t_Int},
-    {&hold, "hold", "Hold", DEF_HOLD, t_Int},
-    {&distance, "distance", "Distance", DEF_DISTANCE, t_Int},
-    {&damping, "damping", "Damping", DEF_DAMPING, t_Int}
-};
-
-ENTRYPOINT ModeSpecOpt jigglypuff_opts = {countof(opts), opts, countof(vars), vars, NULL};
-
-#define COLOR_STYLE_NORMAL    0
-#define COLOR_STYLE_CYCLE     1
-#define COLOR_STYLE_CLOWNBARF 2
-#define COLOR_STYLE_FLOWERBOX 3
-#define COLOR_STYLE_CHROME    4
-
-#define CLOWNBARF_NCOLORS 5
-
-static const GLfloat clownbarf_colors[CLOWNBARF_NCOLORS][4] = {
-    {0.7, 0.7, 0.0, 1.0},
-    {0.8, 0.1, 0.1, 1.0},
-    {0.1, 0.1, 0.8, 1.0},
-    {0.9, 0.9, 0.9, 1.0},
-    {0.0, 0.0, 0.0, 1.0}
-};
-
-static const GLfloat flowerbox_colors[4][4] = {
-    {0.7, 0.7, 0.0, 1.0},
-    {0.9, 0.0, 0.0, 1.0},
-    {0.0, 0.9, 0.0, 1.0},
-    {0.0, 0.0, 0.9, 1.0},
-};
-
-# if 0 /* I am not even going to *try* and make this bullshit compile
-          without warning under gcc -std=c89 -pedantic.  -jwz. */
-#ifdef DEBUG
-# ifdef __GNUC__ /* GCC style */
-#define _DEBUG(msg, args...) do { \
-    fprintf(stderr, "%s : %d : " msg ,__FILE__,__LINE__ ,##args); \
-} while(0)
-# else /* C99 standard style */
-#define _DEBUG(msg, ...) do { \
-    fprintf(stderr, "%s : %d : " msg ,__FILE__,__LINE__,__VA_ARGS__); \
-} while(0)
-# endif
-#else
-# ifdef __GNUC__ /* GCC style */
-#define _DEBUG(msg, args...)
-# else /* C99 standard style */
-#define _DEBUG(msg, ...)
-# endif
-#endif
-#endif /* 0 */
-
-struct solid {
-    face *faces;
-    edge *edges;
-    vertex *vertices;
-};
-
-struct face {
-    solid *s;
-    hedge *start;
-    const GLfloat *color;
-    face *next, *next0;
-};
-
-struct edge {
-    solid *s;
-    hedge *left;
-    hedge *right;
-    edge *next, *next0;
-};
-
-struct hedge {
-    face *f;
-    edge *e;
-    vertex *vtx;
-    hedge *next, *next0;
-    hedge *prev;
-};
-
-struct vertex {
-    solid *s;
-    hedge *h;
-    vector v;
-    vector n;
-    vector f;
-    vector vel;
-    vertex *next, *next0;
-};
-
-
-static inline void vector_init(vector v, coord x, coord y, coord z)
-{
-    v[0] = x;
-    v[1] = y;
-    v[2] = z;
-}    
-
-static inline void vector_copy(vector d, vector s)
-{
-    d[0] = s[0];
-    d[1] = s[1];
-    d[2] = s[2];
-}
-
-static inline void vector_add(vector v1, vector v2, vector v)
-{
-    vector_init(v, v1[0]+v2[0], v1[1]+v2[1], v1[2]+v2[2]);
-}
-
-static inline void vector_add_to(vector v1, vector v2)
-{
-    v1[0] += v2[0];
-    v1[1] += v2[1];
-    v1[2] += v2[2];
-}
-
-static inline void vector_sub(vector v1, vector v2, vector v)
-{
-    vector_init(v, v1[0]-v2[0], v1[1]-v2[1], v1[2]-v2[2]);
-}
-
-static inline void vector_scale(vector v, coord s)
-{
-    v[0] *= s;
-    v[1] *= s;
-    v[2] *= s;
-}
-
-/*
-static inline coord dot(vector v1, vector v2)
-{
-    return v1[0]*v2[0] + v1[1]*v2[1] + v1[2]*v2[2];
-}
-*/
-
-static inline void cross(vector v1, vector v2, vector v)
-{
-    vector_init(v,
-		v1[1]*v2[2] - v2[1]*v1[2],
-		v1[2]*v2[0] - v2[2]*v1[0],
-		v1[0]*v2[1] - v2[0]*v1[1]);
-}
-
-static inline coord magnitude2(vector v)
-{
-    return v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
-}
-
-static inline coord magnitude(vector v)
-{
-    return sqrt(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
-}
-
-static inline void normalize(vector v)
-{
-    coord mag = 1.0/sqrt(v[0]*v[0]+v[1]*v[1]+v[2]*v[2]);
-
-    v[0] *= mag;
-    v[1] *= mag;
-    v[2] *= mag;
-}
-
-static inline void normalize_to(vector v, coord m)
-{
-    coord mag = 1.0/sqrt(v[0]*v[0]+v[1]*v[1]+v[2]*v[2])/m;
-
-    v[0] *= mag;
-    v[1] *= mag;
-    v[2] *= mag;
-}
-
-static inline void midpoint(vector v1, vector v2, vector v)
-{
-    vector_init(v,
-		v1[0] + 0.5 * (v2[0] - v1[0]),
-		v1[1] + 0.5 * (v2[1] - v1[1]),
-		v1[2] + 0.5 * (v2[2] - v1[2]));
-}
-
-static inline hedge *partner(hedge *h) {
-    if(!h->e)
-	return NULL;
-    if(h == h->e->left) {
-	return h->e->right;
-    }
-    else if(h == h->e->right) {
-	return h->e->left;
-    }
-    else {
-/*	_DEBUG("Inconsistent edge detected. Presumably, this is a bug. Exiting.\n", NULL); */
-	exit(-1);
-    }
-}
-
-static vertex *vertex_new(jigglystruct *js, solid *s, vector v)
-{
-    vertex *vtx = (vertex*)malloc(sizeof(vertex));
-
-    if(!vtx)
-	return NULL;
-    vtx->next0 = js->vertices;
-    js->vertices = vtx;
-    vtx->s = s;
-    vtx->next = s->vertices;
-    s->vertices = vtx;
-    vector_copy(vtx->v, v);
-    vector_init(vtx->f, 0, 0, 0);
-    vector_init(vtx->vel, 0, 0, 0);
-    return vtx;
-}
-
-/* insert a new halfedge after hafter. this is low-level,
- * i.e. it is a helper for the split_* functions, which
- * maintain the consistency of the solid.
- */
-static hedge *hedge_new(jigglystruct *js, hedge *hafter, vertex *vtx)
-{
-    hedge *h = (hedge*)malloc(sizeof(hedge));
-    
-    if(!h) {
-/*	_DEBUG("Out of memory in hedge_new()\n",NULL); */
-	return NULL;
-    }
-    h->next0 = js->hedges;
-    js->hedges = h;
-    h->f = hafter->f;
-    h->vtx = vtx;
-    h->e = NULL;
-    h->prev = hafter;
-    h->next = hafter->next;
-    hafter->next = h;
-    h->next->prev = h;
-    return h;
-}
-
-static edge *edge_new(jigglystruct *js, solid *s)
-{
-    edge *e = (edge*)malloc(sizeof(edge));
-    if(!e) {
-/*	_DEBUG("Out of memory in edge_new()\n",NULL);*/
-	exit(-1);
-    }
-    e->next0 = js->edges;
-    js->edges = e;
-    e->next = s->edges;
-    s->edges = e;
-    e-> s = s;
-    e->left = e->right = NULL;
-    return e;
-}
-
-static face *face_new(jigglystruct *js, solid *s, hedge *h)
-{
-    face *f = (face*)malloc(sizeof(face));
-    if(!f) {
-/*	_DEBUG("Out of memory in face_new()",NULL);*/
-	exit(-1);
-    }
-    f->next0 = js->faces;
-    js->faces = f;
-    f->s = s;
-    f->start = h;
-    f->next = s->faces;
-    s->faces = f;
-    return f;
-}
-
-/* split vertex vtx, creating a new edge after v on f
- * that goes to a new vertex at v, adjoining whatever
- * face is on the other side of the halfedge attached to
- * v on f. 
- * Assumptions:
- *    there are at least 2 faces.
- *    partner(h)->next->vtx == vtx
- * Post-assumptions:
- *    the new halfedge will be inserted AFTER the indicated
- *    halfedge. This means that f->start is guaranteed not to
- *    change.
- *    the vertex returned will have h==<the new halfedge>.
- */
-
-static vertex *vertex_split(jigglystruct *js, hedge *h, vector v)
-{
-    hedge *h2, *hn1, *hn2;
-    vertex *vtxn;
-    edge *en;
-    face *f1;
-
-    f1 = h->f;
-    h2 = partner(h);
-    
-    vtxn = vertex_new(js, f1->s, v);
-    hn1 = hedge_new(js, h, vtxn);
-    vtxn->h = hn1;
-    hn2 = hedge_new(js, h2, vtxn);
-    hn2->e = h->e;
-
-    if(h2->e->left == h2)
-	h2->e->left = hn2;
-    else
-	h2->e->right = hn2;
-
-    en = edge_new(js, f1->s);
-    en->left = hn1;
-    en->right = h2;
-    hn1->e = en;
-    h2->e = en;
-    return vtxn;
-}
-
-static face *face_split(jigglystruct *js, face *f, hedge *h1, hedge *h2)
-{
-    hedge *hn1, *hn2, *tmp;
-    edge *en;
-    face *fn;
-
-    if(h1->f != f || h2->f != f) {
-/*	_DEBUG("Whoah, cap'n, yer usin' a bad halfedge!\n",NULL);*/
-	exit(-1);
-    }
-    if(h1 == h2) {
-/*	_DEBUG("Trying to split a face at a single vertex\n",NULL);*/
-	exit(-1);
-    }
-    /* close the loops */
-    h1->prev->next = h2;
-    h2->prev->next = h1;
-    tmp = h1->prev;
-    h1->prev = h2->prev;
-    h2->prev = tmp;
-    /* insert halfedges & create edge */
-    hn1 = hedge_new(js, h2->prev, h1->vtx);
-    hn2 = hedge_new(js, h1->prev, h2->vtx);
-    en = edge_new(js, f->s);
-    en->left = hn1;
-    en->right = hn2;
-    hn1->e = en;
-    hn2->e = en;
-
-    /* make the new face, first find out which hedge is contained
-    * in the original face, then start the new face at the other */
-    tmp = f->start;
-    while(tmp != h1 && tmp != h2)
-	tmp = tmp->next;
-    tmp = (tmp == h1) ? h2 : h1 ;
-    fn = face_new(js, f->s, tmp);
-    do {
-	tmp->f = fn;
-	tmp = tmp->next;
-    } while(tmp != fn->start);
-    fn->color = f->color;
-    return fn;
-}
-
-static solid *solid_new(jigglystruct *js, vector where) 
-{
-    solid *s = (solid*)malloc(sizeof(solid));
-    face *f1, *f2;
-    edge *e;
-    vertex *vtx;
-    hedge *h1,*h2;
-
-    s->faces = NULL;
-    s->edges = NULL;
-    s->vertices = NULL;
-
-    h1 = (hedge*)malloc(sizeof(hedge));
-    h2 = (hedge*)malloc(sizeof(hedge));
-    h1->next = h1->prev = h1;
-    h2->next = h2->prev = h2;
-
-    h1->next0 = js->hedges;
-    js->hedges = h1;
-    h2->next0 = js->hedges;
-    js->hedges = h2;
-
-    vtx = vertex_new(js, s, where);
-    vtx->h = h1;
-    h1->vtx = vtx;
-    h2->vtx = vtx;
-
-    e = edge_new(js, s);
-    e->left = h1;
-    e->right = h2;
-    h1->e = e;
-    h2->e = e;
-
-    f1 = face_new(js, s, h1);
-    f2 = face_new(js, s, h2);
-    h1->f = f1;
-    h2->f = f2;
-
-    return s;
-}
-
-/* This is all the code directly related to constructing the jigglypuff */
-static void face_tessel2(jigglystruct *js, face *f)
-{
-    hedge *h1=f->start->prev, *h2=f->start->next;
-    
-    if(h1->next == h1)
-	return;
-    while(h2 != h1 && h2->next != h1) {
-	f = face_split(js, f, h1, h2);
-	h1 = f->start;
-	h2 = f->start->next->next;
-    }
-}
-
-/* This will only work with solids composed entirely of
- * triangular faces. It first add a vertex to the middle
- * of each edge, then walks the faces, connecting the
- * dots.
- * I'm abusing the fact that new faces and edges are always
- * added at the head of the list. If that ever changes,
- * this is borked. 
- */
-static void solid_tesselate(jigglystruct *js, solid *s) 
-{
-    edge *e = s->edges;
-    face *f = s->faces;
-    
-    while(e) {
-	vector v;
-	midpoint(e->left->vtx->v, e->right->vtx->v, v);
-	vertex_split(js, e->left, v);
-	e = e->next;
-    }
-    while(f) {
-	face_tessel2(js, f);
-	f=f->next;
-    }
-}
-		
-static void solid_spherify(solid * s, coord size) 
-{
-    vertex *vtx = s->vertices;
-
-    while(vtx) {
-	normalize_to(vtx->v, size);
-	vtx = vtx->next;
-    }
-}
-
-static solid *tetrahedron(jigglystruct *js) 
-{
-    solid *s;
-    vertex *vtx;
-    vector v;
-    hedge *h;
-    face *f;
-    int i;
-
-    vector_init(v, 1, 1, 1);
-    s = solid_new(js, v);
-    vector_init(v, -1, -1, 1);
-    h = s->faces->start;
-    vtx = vertex_split(js, h, v);
-    vector_init(v, -1, 1, -1);
-    vtx = vertex_split(js, vtx->h, v);
-    h = vtx->h;
-    f = face_split(js, s->faces, h, h->prev);
-    vector_init(v, 1, -1, -1);
-    vertex_split(js, f->start, v);
-    f = s->faces->next->next;
-    h = f->start;
-    face_split(js, f, h, h->next->next);
-
-    if(js->color_style == COLOR_STYLE_FLOWERBOX) {
-	f = s->faces;
-	for(i=0; i<4; i++) {
-	    f->color = flowerbox_colors[i];
-	    f = f->next;
-	}
-    }	    
-
-    return s;
-}
-
-static solid *tesselated_tetrahedron(coord size, int iter, jigglystruct *js) {
-    solid *s = tetrahedron(js);
-    int i;
-
-    for(i=0; i<iter; i++) {
-	solid_tesselate(js, s);
-    }
-    return s;
-}
-
-static void clownbarf_colorize(solid *s) {
-    face *f = s->faces;
-    while(f) {
-	f->color = clownbarf_colors[random() % CLOWNBARF_NCOLORS];
-	f = f->next;
-    }
-}
-
-/* Here be the rendering code */
-
-static inline void vertex_calcnormal(vertex *vtx, jigglystruct *js)
-{
-    hedge *start = vtx->h, *h=start;
-    
-    vector_init(vtx->n, 0, 0, 0);
-    do {
-	vector u, v, norm;
-	vector_sub(h->prev->vtx->v, vtx->v, u);
-	vector_sub(h->next->vtx->v, vtx->v, v);
-	cross(u, v, norm);
-	vector_add_to(vtx->n, norm);
-	h = partner(h)->next;
-    } while(h != start);
-    if(!js->spooky)
-	normalize(vtx->n);
-    else
-	vector_scale(vtx->n, js->spooky);
-}
-
-static inline void vertex_render(vertex *vtx, jigglystruct *js)
-{
-    glNormal3fv(vtx->n);
-    glVertex3fv(vtx->v);
-}
-
-/* This can be optimized somewhat due to the fact that all
- * the faces are triangles. I haven't actually tested to
- * see what the cost is of calling glBegin/glEnd for each
- * triangle.
- */
-static inline int face_render(face *f, jigglystruct *js)
-{
-    hedge *h1, *h2, *hend;
-    int polys = 0;
-
-    h1 = f->start;
-    hend = h1->prev;
-    h2 = h1->next;
-    
-    if(js->color_style == COLOR_STYLE_FLOWERBOX ||
-	js->color_style == COLOR_STYLE_CLOWNBARF)
-	glColor4fv(f->color);
-    glBegin(GL_TRIANGLES);
-    while(h1 != hend && h2 !=hend) {
-	vertex_render(h1->vtx, js);
-	vertex_render(h2->vtx, js);
-	vertex_render(hend->vtx, js);
-	h1 = h2;
-	h2 = h1->next;
-        polys++;
-    }
-    glEnd();
-    return polys;
-}
-
-static int jigglypuff_render(jigglystruct *js) 
-{
-    int polys = 0;
-    face *f = js->shape->faces;
-    vertex *vtx = js->shape->vertices;
-
-    while(vtx) {
-	vertex_calcnormal(vtx, js);
-	vtx = vtx->next;
-    }
-    while(f) {
-	polys += face_render(f, js);
-	f=f->next;
-    }
-    return polys;
-}
-
-/* This is the jiggling code */
-
-/* stable distance when subdivs == 4 */
-#define STABLE_DISTANCE 0.088388347648
-
-static void update_shape(jigglystruct *js)
-{
-    vertex *vtx = js->shape->vertices;
-    edge *e = js->shape->edges;
-    vector zero;
-
-    vector_init(zero, 0, 0, 0);
-
-    /* sum all the vertex-vertex forces */
-    while(e) {
-	vector f;
-	coord mag;
-	vector_sub(e->left->vtx->v, e->right->vtx->v, f);
-	mag = js->stable_distance - magnitude(f);
-	vector_scale(f, mag);
-	vector_add_to(e->left->vtx->f, f);
-	vector_sub(zero, f, f);
-	vector_add_to(e->right->vtx->f, f);
-	e = e->next;
-    }
-
-    /* scale back the v-v force and add the spherical force
-     * then add the result to the vertex velocity, damping
-     * if necessary. Finally, move the vertex */
-    while(vtx) {
-	coord mag;
-	vector to_sphere;
-	vector_scale(vtx->f, js->hold_strength);
-	vector_copy(to_sphere, vtx->v);
-	mag = 1 - magnitude(to_sphere);
-	vector_scale(to_sphere, mag * js->spherify_strength);
-	vector_add_to(vtx->f, to_sphere);
-	vector_add_to(vtx->vel, vtx->f);
-	vector_init(vtx->f, 0, 0, 0);
-	mag = magnitude2(vtx->vel);
-	if(mag > js->damping_velocity)
-	    vector_scale(vtx->vel, js->damping_factor);
-	vector_add_to(vtx->v, vtx->vel);
-	vtx = vtx->next;
-    }
-}
-
-/* These are the various initialization routines */
-
-static void init_texture(ModeInfo *mi)
-{
-    jigglystruct *js = &jss[MI_SCREEN(mi)];
-    XImage *img = image_data_to_ximage(mi->dpy, mi->xgwa.visual,
-                                       jigglymap_png, sizeof(jigglymap_png));
-
-    glGenTextures (1, &js->texid);
-    glBindTexture (GL_TEXTURE_2D, js->texid);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
-		 img->width, img->height, 0, GL_RGBA,
-		 GL_UNSIGNED_BYTE, img->data);
-
-    XDestroyImage(img);
-}
-
-static void setup_opengl(ModeInfo *mi, jigglystruct *js)
-{
-    const GLfloat lpos0[4] = {-12, 8, 12, 0};
-    const GLfloat lpos1[4] = {7, -5, 0, 0};
-    const GLfloat lcol0[4] = {0.7f, 0.7f, 0.65f, 1};
-    const GLfloat lcol1[4] = {0.3f, 0.2f, 0.1f, 1};
-    const GLfloat scolor[4]= {0.9f, 0.9f, 0.9f, 0.5f};
-
-    glDrawBuffer(GL_BACK);
-    glShadeModel(GL_SMOOTH);
-    glEnable(GL_DEPTH_TEST);
-
-    if(js->do_wireframe) {
-	glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-    }
-    else {
-	glCullFace(GL_BACK);
-	glFrontFace(GL_CW);
-	glEnable(GL_CULL_FACE);
-    }
-
-    if(js->color_style != COLOR_STYLE_CHROME) {
-	glEnable(GL_LIGHTING);
-	glEnable(GL_LIGHT0);
-	glEnable(GL_LIGHT1);
-	
-	glLightfv(GL_LIGHT0, GL_POSITION, lpos0);
-	glLightfv(GL_LIGHT1, GL_POSITION, lpos1);
-	glLightfv(GL_LIGHT0, GL_DIFFUSE, lcol0);
-	glLightfv(GL_LIGHT1, GL_DIFFUSE, lcol1);
-
-	glEnable(GL_COLOR_MATERIAL);
-	glColor4fv(js->jiggly_color);
-
-	glMaterialfv(GL_FRONT, GL_SPECULAR, scolor);
-	glMateriali(GL_FRONT, GL_SHININESS, js->shininess);
-    }
-    else { /* chrome */
-	init_texture(mi);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-	glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-	glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-	glEnable(GL_TEXTURE_GEN_S);
-	glEnable(GL_TEXTURE_GEN_T);
-	glEnable(GL_TEXTURE_2D);
-	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-    }
-}
-
-static int parse_color(jigglystruct *js)
-{
-    unsigned int r, g, b;
-    if(!strcmp(color, "clownbarf")) {
-	js->color_style = COLOR_STYLE_CLOWNBARF;
-	return 1;
-    }
-    else if(!strcmp(color, "flowerbox")) {
-	js->color_style = COLOR_STYLE_FLOWERBOX;
-	return 1;
-    }
-# ifndef HAVE_JWZGLES  /* SPHERE_MAP unimplemented */
-    else if(!strcmp(color, "chrome")) {
-	js->color_style = COLOR_STYLE_CHROME;
-	return 1;
-    }
-# endif
-    else if(!strcmp(color, "cycle")) {
-	js->color_style = COLOR_STYLE_CYCLE;
-	js->jiggly_color[0] = ((float)random()) / REAL_RAND_MAX * 0.7 + 0.3;
-	js->jiggly_color[1] = ((float)random()) / REAL_RAND_MAX * 0.7 + 0.3;
-	js->jiggly_color[2] = ((float)random()) / REAL_RAND_MAX * 0.7 + 0.3;
-	js->jiggly_color[3] = 1.0f;
-	js->color_dir[0] = ((float)random()) / REAL_RAND_MAX / 100.0;
-	js->color_dir[1] = ((float)random()) / REAL_RAND_MAX / 100.0;
-	js->color_dir[2] = ((float)random()) / REAL_RAND_MAX / 100.0;
-	return 1;
-    }
-    else
-	js->color_style = 0;
-    if(strlen(color) != 7)
-	return 0;
-    if(sscanf(color,"#%02x%02x%02x", &r, &g, &b) != 3) {
-	return 0;
-    }
-    js->jiggly_color[0] = ((float)r)/255;
-    js->jiggly_color[1] = ((float)g)/255;
-    js->jiggly_color[2] = ((float)b)/255;
-    js->jiggly_color[3] = 1.0f;
-
-    return 1;
-}
-
-static void randomize_parameters(jigglystruct *js) {
-    do_tetrahedron = random() & 1;
-# ifndef HAVE_JWZGLES /* #### glPolygonMode other than GL_FILL unimplemented */
-    js->do_wireframe = !(random() & 3);
-# endif
-    js->color_style = random() % 5;
-# ifdef HAVE_JWZGLES  /* #### SPHERE_MAP unimplemented */
-    while (js->color_style == COLOR_STYLE_CHROME)
-      js->color_style = random() % 5;;
-# endif
-    if(js->color_style == COLOR_STYLE_NORMAL
-	|| js->color_style == COLOR_STYLE_CYCLE) {
-	js->jiggly_color[0] = ((float)random()) / REAL_RAND_MAX * 0.5 + 0.5;
-	js->jiggly_color[1] = ((float)random()) / REAL_RAND_MAX * 0.5 + 0.5;
-	js->jiggly_color[2] = ((float)random()) / REAL_RAND_MAX * 0.5 + 0.5;
-	js->jiggly_color[3] = 1.0f;
-	if(js->color_style == COLOR_STYLE_CYCLE) {
-	    js->color_dir[0] = ((float)random()) / REAL_RAND_MAX / 100.0;
-	    js->color_dir[1] = ((float)random()) / REAL_RAND_MAX / 100.0;
-	    js->color_dir[2] = ((float)random()) / REAL_RAND_MAX / 100.0;
-	}
-    }
-    if((js->color_style != COLOR_STYLE_CHROME) && (random() & 1))
-	js->spooky = (random() % 6) + 4;
-    else 
-	js->spooky = 0;
-    js->shininess = random() % 200;
-    speed = (random() % 700) + 50;
-    /* It' kind of dull if this is too high when it starts as a sphere */
-    spherism = do_tetrahedron ? (random() % 500) + 20 : (random() % 100) + 10;
-    hold = (random() % 800) + 100;
-    distance = (random() % 500) + 100;
-    damping = (random() % 800) + 50;
-}    
-
-static void calculate_parameters(jigglystruct *js, int subdivs) {
-    /* try to compensate for the inherent instability at
-     * low complexity. */
-    float dist_factor = (subdivs == 6) ? 2 : (subdivs == 5) ? 1 : 0.5;
-
-    js->stable_distance = ((float)distance / 500.0) 
-	* (STABLE_DISTANCE / dist_factor);
-    js->hold_strength = (float)hold / 10000.0;
-    js->spherify_strength = (float)spherism / 10000.0;
-    js->damping_velocity = (float)damping / 100000.0;
-    js->damping_factor = 
-	0.001/max(js->hold_strength, js->spherify_strength);
-
-    js->speed = (float)speed / 1000.0;
-}
-
-/* The screenhack related functions begin here */
-
-ENTRYPOINT Bool jigglypuff_handle_event(ModeInfo *mi, XEvent *event)
-{
-    jigglystruct *js = &jss[MI_SCREEN(mi)];
-    
-    if (gltrackball_event_handler (event, js->trackball,
-                                   MI_WIDTH (mi), MI_HEIGHT (mi),
-                                   &js->button_down))
-    return True;
-
-    return False;
-}
-
-ENTRYPOINT void reshape_jigglypuff(ModeInfo *mi, int width, int height)
-{
-  double h = (GLfloat) height / (GLfloat) width;  
-  int y = 0;
-
-  if (width > height * 5) {   /* tiny window: show middle */
-    height = width * 9/16;
-    y = -height/2;
-    h = height / (GLfloat) width;
-  }
-
-  glViewport(0, y, width, height);
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glFrustum(-0.5*(1/h), 0.5*(1/h), -0.5, 0.5, 1, 20);
-}
-
-ENTRYPOINT void draw_jigglypuff(ModeInfo *mi)
-{
-    jigglystruct *js = &jss[MI_SCREEN(mi)];
-    
-    glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *js->glx_context);
-    
-    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-    glMatrixMode(GL_MODELVIEW);
-    glLoadIdentity();
-    glTranslatef(0,0,-10);
-
-
-    {
-      GLfloat s = (MI_WIDTH(mi) < MI_HEIGHT(mi)
-                   ? (MI_WIDTH(mi) / (GLfloat) MI_HEIGHT(mi))
-                   : 1);
-      glScalef (s, s, s);
-    }
-
-    glRotatef(js->angle, sin(js->axis), cos(js->axis), -sin(js->axis));
-    glTranslatef(0, 0, 5);
-    if(!(js->button_down)) {
-	if((js->angle += js->speed) >= 360.0f ) {
-	    js->angle -= 360.0f;
-	}
-	if((js->axis+=0.01f) >= 2*M_PI ) {
-	    js->axis -= 2*M_PI;
-	}
-    }
-
-    gltrackball_rotate(js->trackball);
-
-    if(js->color_style == COLOR_STYLE_CYCLE) {
-	int i;
-	vector_add(js->jiggly_color, js->color_dir, js->jiggly_color);
-	
-	for(i=0; i<3; i++) {
-	    if(js->jiggly_color[i] > 1.0 || js->jiggly_color[i] < 0.3) {
-		js->color_dir[i] = (-js->color_dir[i]);
-		js->jiggly_color[i] += js->color_dir[i];
-	    }
-	}
-	glColor4fv(js->jiggly_color);
-    }
-    
-    mi->polygon_count = jigglypuff_render(js);
-    if(MI_IS_FPS(mi))
-	do_fps(mi);
-    glFinish();
-    update_shape(js);
-    glXSwapBuffers(MI_DISPLAY(mi), MI_WINDOW(mi));
-}
-
-ENTRYPOINT void init_jigglypuff(ModeInfo *mi)
-{
-    jigglystruct *js;
-    int subdivs;
-
-    MI_INIT(mi, jss);
-
-    js = &jss[MI_SCREEN(mi)];
-
-    js->do_wireframe = MI_IS_WIREFRAME(mi);
-# ifdef HAVE_JWZGLES
-    js->do_wireframe = 0; /* GL_LINE unimplemented */
-# endif
-
-    js->shininess = shininess;
-
-    subdivs = (complexity==1) ? 4 : (complexity==2) ? 5
-	: (complexity==3) ? 6 : 5;
-
-    js->spooky = spooky << (subdivs-3);
-
-    if(!parse_color(js)) {
-	fprintf(stderr, "%s: Bad color specification: '%s'.\n", progname, color);
-	exit(-1);
-    }
-    
-    if(random_parms)
-	randomize_parameters(js);
-
-    js->angle = frand(180);
-    js->axis  = frand(M_PI);
-
-    js->shape = tesselated_tetrahedron(1, subdivs, js);
-
-    if(!do_tetrahedron)
-	solid_spherify(js->shape, 1);
-
-    if(js->color_style == COLOR_STYLE_CLOWNBARF)
-	clownbarf_colorize(js->shape);
-
-    calculate_parameters(js, subdivs);
-
-    if((js->glx_context = init_GL(mi)) != NULL) {
-	glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *js->glx_context);
-	setup_opengl(mi, js);
-	reshape_jigglypuff(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
-    }
-    else {
-	MI_CLEARWINDOW(mi);
-    }
-    js->trackball = gltrackball_init(True);
-/*    _DEBUG("distance : %f\nhold : %f\nspherify : %f\ndamping : %f\ndfact : %f\n",
-	   js->stable_distance, js->hold_strength, js->spherify_strength,
-	   js->damping_velocity, js->damping_factor);
-    _DEBUG("wire : %d\nspooky : %d\nstyle : %d\nshininess : %d\n",
-	   js->do_wireframe, js->spooky, js->color_style, js->shininess);*/
-}
-
-
-ENTRYPOINT void free_jigglypuff(ModeInfo *mi)
-{
-    jigglystruct *js = &jss[MI_SCREEN(mi)];
-
-    if (!js->glx_context) return;
-    glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *js->glx_context);
-
-    if (js->texid) glDeleteTextures(1, &js->texid);
-    if (js->trackball) gltrackball_free (js->trackball);
-
-    while (js->faces) {
-      face *n = js->faces->next0;
-      free (js->faces);
-      js->faces = n;
-    }
-    while (js->edges) {
-      edge *n = js->edges->next0;
-      free (js->edges);
-      js->edges = n;
-    }
-    while (js->hedges) {
-      hedge *n = js->hedges->next0;
-      free (js->hedges);
-      js->hedges = n;
-    }
-    while (js->vertices) {
-      vertex *n = js->vertices->next0;
-      free (js->vertices);
-      js->vertices = n;
-    }
-    free (js->shape);
-    if (js->texid) glDeleteTextures (1, &js->texid);
-}
-
-XSCREENSAVER_MODULE ("JigglyPuff", jigglypuff)
-
-#endif /* USE_GL */
-
-/* This is the end of the file */