6.09HEADmaster

1 files changed, 0 insertions, 665 deletions

diff --git a/hacks/glx/boing.c b/hacks/glx/boing.c
deleted file mode 100644
index bf010be..0000000
--- a/hacks/glx/boing.c
+++ /dev/null
@@ -1,665 +0,0 @@
-/* boing, Copyright (c) 2005-2014 Jamie Zawinski <jwz@jwz.org>
- *
- * 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.
- *
- * A clone of the Amiga 1000 "Boing" demo.  This was the first graphics demo
- * for the Amiga, written by Dale Luck and RJ Mical during a break at the 1984
- * Consumer Electronics Show (or so the legend goes.)  The boing ball was
- * briefly the official logo of Amiga Inc., until they were bought by
- * Commodore later that year.
- *
- * With no arguments, this program looks a lot like the original Amiga demo.
- * With "-smooth -lighting", it looks... less old.
- *
- * The amiga version made noise when the ball hit the walls.  This version
- * does not, obviously.
- */
-
-#define DEFAULTS	"*delay:	30000            \n" \
-			"*showFPS:      False            \n" \
-			"*wireframe:    False            \n" \
-
-# define release_boing 0
-
-#include "xlockmore.h"
-#include "gltrackball.h"
-#include <ctype.h>
-
-#ifdef USE_GL /* whole file */
-
-
-#define DEF_SPIN        "True"
-#define DEF_LIGHTING    "False"
-#define DEF_SMOOTH      "False"
-#define DEF_SCANLINES   "True"
-#define DEF_SPEED       "1.0"
-#define DEF_BALL_SIZE   "0.5"
-#define DEF_ANGLE       "15"
-#define DEF_MERIDIANS   "16"
-#define DEF_PARALLELS   "8"
-#define DEF_TILES       "12"
-#define DEF_THICKNESS   "0.05"
-
-#define DEF_BALL_COLOR1  "#CC1919"
-#define DEF_BALL_COLOR2  "#F2F2F2"
-#define DEF_GRID_COLOR   "#991999"
-#define DEF_SHADOW_COLOR "#303030"
-#define DEF_BACKGROUND   "#8C8C8C"
-
-typedef struct { GLfloat x, y, z; } XYZ;
-
-typedef struct {
-  GLXContext *glx_context;
-  trackball_state *trackball;
-  Bool button_down_p;
-
-  GLfloat speed;
-
-  GLuint ball_list;
-  double ball_x,   ball_y,   ball_z,   ball_th;
-  double ball_dx,  ball_dy,  ball_dz,  ball_dth;
-  double ball_ddx, ball_ddy, ball_ddz;
-
-  GLfloat ball_color1[4], ball_color2[4], grid_color[4];
-  GLfloat bg_color[4], shadow_color[4];
-  GLfloat lightpos[4];
-
-} boing_configuration;
-
-static boing_configuration *bps = NULL;
-
-static Bool spin;
-static Bool lighting_p;
-static Bool smooth_p;
-static Bool scanlines_p;
-static GLfloat speed;
-static int angle;
-static GLfloat ball_size;
-static unsigned int meridians;
-static unsigned int parallels;
-static unsigned int tiles;
-static GLfloat thickness;
-static char *ball_color1_str, *ball_color2_str, *grid_color_str,
-  *shadow_str, *bg_str;
-
-static XrmOptionDescRec opts[] = {
-  { "-spin",       ".spin",      XrmoptionNoArg,  "True"  },
-  { "+spin",       ".spin",      XrmoptionNoArg,  "False" },
-  { "-lighting",   ".lighting",  XrmoptionNoArg,  "True"  },
-  { "+lighting",   ".lighting",  XrmoptionNoArg,  "False" },
-  { "-smooth",     ".smooth",    XrmoptionNoArg,  "True"  },
-  { "+smooth",     ".smooth",    XrmoptionNoArg,  "False" },
-  { "-scanlines",  ".scanlines", XrmoptionNoArg,  "True"  },
-  { "+scanlines",  ".scanlines", XrmoptionNoArg,  "False" },
-  { "-speed",      ".speed",     XrmoptionSepArg, 0 },
-  { "-angle",      ".angle",     XrmoptionSepArg, 0 },
-  { "-size",       ".ballSize",  XrmoptionSepArg, 0 },
-  { "-meridians",  ".meridians", XrmoptionSepArg, 0 },
-  { "-parallels",  ".parallels", XrmoptionSepArg, 0 },
-  { "-tiles",      ".tiles",     XrmoptionSepArg, 0 },
-  { "-thickness",  ".thickness", XrmoptionSepArg, 0 },
-  { "-ball-color1",".ballColor1",XrmoptionSepArg, 0 },
-  { "-ball-color2",".ballColor2",XrmoptionSepArg, 0 },
-  { "-grid-color", ".gridColor", XrmoptionSepArg, 0 },
-  { "-shadow-color",".shadowColor",XrmoptionSepArg, 0 },
-  { "-background",  ".boingBackground",XrmoptionSepArg, 0 },
-  { "-bg",          ".boingBackground",XrmoptionSepArg, 0 },
-};
-
-static argtype vars[] = {
-  {&spin,      "spin",      "Spin",       DEF_SPIN,      t_Bool},
-  {&lighting_p,"lighting",  "Lighting",   DEF_LIGHTING,  t_Bool},
-  {&smooth_p,  "smooth",    "Smooth",     DEF_SMOOTH,    t_Bool},
-  {&scanlines_p,"scanlines","Scanlines",  DEF_SCANLINES, t_Bool},
-  {&speed,     "speed",     "Speed",      DEF_SPEED,     t_Float},
-  {&angle,     "angle",     "Angle",      DEF_ANGLE,     t_Int},
-  {&ball_size, "ballSize",  "BallSize",   DEF_BALL_SIZE, t_Float},
-  {&meridians, "meridians", "meridians",  DEF_MERIDIANS, t_Int},
-  {&parallels, "parallels", "parallels",  DEF_PARALLELS, t_Int},
-  {&tiles,     "tiles",     "Tiles",      DEF_TILES,     t_Int},
-  {&thickness, "thickness", "Thickness",  DEF_THICKNESS, t_Float},
-  {&ball_color1_str, "ballColor1", "BallColor1", DEF_BALL_COLOR1, t_String},
-  {&ball_color2_str, "ballColor2", "BallColor2", DEF_BALL_COLOR2, t_String},
-  {&grid_color_str,  "gridColor",  "GridColor",  DEF_GRID_COLOR,  t_String},
-  {&shadow_str,      "shadowColor","ShadowColor",DEF_SHADOW_COLOR,t_String},
-  /* dammit, -background is too magic... */
-  {&bg_str,        "boingBackground", "Background", DEF_BACKGROUND, t_String},
-};
-
-ENTRYPOINT ModeSpecOpt boing_opts = {countof(opts), opts, countof(vars), vars, NULL};
-
-static void
-parse_color (ModeInfo *mi, const char *name, const char *s, GLfloat *a)
-{
-  XColor c;
-  a[3] = 1.0;  /* alpha */
-
-  if (! XParseColor (MI_DISPLAY(mi), MI_COLORMAP(mi), s, &c))
-    {
-      fprintf (stderr, "%s: can't parse %s color %s", progname, name, s);
-      exit (1);
-    }
-  a[0] = c.red   / 65536.0;
-  a[1] = c.green / 65536.0;
-  a[2] = c.blue  / 65536.0;
-}
-
-
-static void
-draw_grid (ModeInfo *mi)
-{
-  boing_configuration *bp = &bps[MI_SCREEN(mi)];
-  int x, y;
-  GLfloat t2  = (GLfloat) tiles / 2;
-  GLfloat s = 1.0 / (tiles + thickness);
-  GLfloat z = 0;
-
-  GLfloat lw = MI_HEIGHT(mi) * 0.06 * thickness;
-
-  glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, bp->grid_color);
-  glColor3fv (bp->grid_color);
-
-  glPushMatrix();
-  glScalef(s, s, s);
-  glTranslatef (-t2, -t2, 0);
-
-  glLineWidth (lw);
-  glBegin (GL_LINES);
-  for (y = 0; y <= tiles; y++)
-    {
-      glVertex3f (0,     y, z);
-      glVertex3f (tiles, y, z);
-      /*mi->polygon_count++;*/
-    }
-  for (x = 0; x <= tiles; x++)
-    {
-      glVertex3f (x, tiles, z);
-      glVertex3f (x, 0,     z);
-      /*mi->polygon_count++;*/
-    }
-
-  glEnd();
-  glPopMatrix();
-}
-
-
-static void
-draw_box (ModeInfo *mi)
-{
-  /* boing_configuration *bp = &bps[MI_SCREEN(mi)]; */
-  glPushMatrix();
-  glTranslatef (0, 0, -0.5);
-/*  glFrontFace (GL_CCW);*/
-  draw_grid (mi);
-  glPopMatrix();
-
-  glPushMatrix();
-  glRotatef (90, 1, 0, 0);
-  glTranslatef (0, 0, 0.5);
-/*  glFrontFace (GL_CW);*/
-  draw_grid (mi);
-  glPopMatrix();
-}
-
-
-static void
-draw_ball (ModeInfo *mi)
-{
-  boing_configuration *bp = &bps[MI_SCREEN(mi)];
-  int wire = MI_IS_WIREFRAME(mi);
-  int x, y;
-  int xx = meridians;
-  int yy = parallels;
-  int scale = (smooth_p ? 5 : 1);
-
-  if (lighting_p && !wire)
-    glEnable (GL_LIGHTING);
-
-  if (parallels < 3)
-    scale *= 2;
-
-  xx *= scale;
-  yy *= scale;
-
-  glFrontFace (GL_CW);
-
-  glPushMatrix();
-  glTranslatef (bp->ball_x, bp->ball_y, bp->ball_z);
-  glScalef (ball_size, ball_size, ball_size);
-  glRotatef (-angle,      0, 0, 1);
-  glRotatef (bp->ball_th, 0, 1, 0);
-
-  for (y = 0; y < yy; y++)
-    {
-      GLfloat thy0 = y     * (M_PI * 2) / (yy * 2) + M_PI_2;
-      GLfloat thy1 = (y+1) * (M_PI * 2) / (yy * 2) + M_PI_2;
-
-      for (x = 0; x < xx; x++)
-        {
-          GLfloat thx0 = x     * (M_PI * 2) / xx;
-          GLfloat thx1 = (x+1) * (M_PI * 2) / xx;
-          XYZ p;
-          Bool bgp = ((x/scale) & 1) ^ ((y/scale) & 1);
-
-          if (wire && bgp) continue;
-
-          glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE,
-                        (bgp ? bp->ball_color2 : bp->ball_color1));
-          glColor3fv (bgp ? bp->ball_color2 : bp->ball_color1);
-
-          glBegin (wire ? GL_LINE_LOOP : GL_QUADS);
-
-          if (!smooth_p)
-            {
-              p.x = cos((thy0+thy1)/2) * cos((thx0+thx1)/2);
-              p.y = sin((thy0+thy1)/2);
-              p.z = cos((thy0+thy1)/2) * sin((thx0+thx1)/2);
-              glNormal3f (-p.x, -p.y, -p.z);
-            }
-
-          p.x = cos(thy0) * cos(thx0) / 2;
-          p.y = sin(thy0)             / 2;
-          p.z = cos(thy0) * sin(thx0) / 2;
-          if (smooth_p)
-            glNormal3f (-p.x, -p.y, -p.z);
-          glVertex3f (p.x, p.y, p.z);
-
-          p.x = cos(thy1) * cos(thx0) / 2;
-          p.y = sin(thy1)             / 2;
-          p.z = cos(thy1) * sin(thx0) / 2;
-          if (smooth_p)
-            glNormal3f (-p.x, -p.y, -p.z);
-          glVertex3f (p.x, p.y, p.z);
-
-          p.x = cos(thy1) * cos(thx1) / 2;
-          p.y = sin(thy1)             / 2;
-          p.z = cos(thy1) * sin(thx1) / 2;
-          if (smooth_p)
-            glNormal3f (-p.x, -p.y, -p.z);
-          glVertex3f (p.x, p.y, p.z);
-
-          p.x = cos(thy0) * cos(thx1) / 2;
-          p.y = sin(thy0)             / 2;
-          p.z = cos(thy0) * sin(thx1) / 2;
-          if (smooth_p)
-            glNormal3f (-p.x, -p.y, -p.z);
-          glVertex3f (p.x, p.y, p.z);
-
-          glEnd ();
-          mi->polygon_count++;
-        }
-    }
-
-  glPopMatrix();
-
-  if (lighting_p && !wire)
-    glDisable(GL_LIGHTING);
-}
-
-
-static void
-draw_shadow (ModeInfo *mi)
-{
-  boing_configuration *bp = &bps[MI_SCREEN(mi)];
-  int wire = MI_IS_WIREFRAME(mi);
-  GLfloat xoff = 0.14;
-  GLfloat yoff = 0.07;
-  int y;
-  int yy = parallels;
-  int scale = (smooth_p ? 5 : 1);
-
-  if (lighting_p && !wire)
-    glEnable (GL_BLEND);
-
-  if (parallels < 3)
-    scale *= 2;
-
-  yy *= scale;
-
-  glPushMatrix();
-  glTranslatef (bp->ball_x + xoff, bp->ball_y + yoff, -0.49);
-  glScalef (ball_size, ball_size, ball_size);
-  glRotatef (-angle, 0, 0, 1);
-
-  glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, bp->shadow_color);
-  glColor4fv (bp->shadow_color);
-
-  glFrontFace (GL_CCW);
-  glNormal3f (0, 0, 1);
-  glBegin (wire ? GL_LINE_LOOP : GL_TRIANGLE_FAN);
-  if (!wire) glVertex3f (0, 0, 0);
-
-  for (y = 0; y < yy*2+1; y++)
-    {
-      GLfloat thy0 = y * (M_PI * 2) / (yy * 2) + M_PI_2;
-      glVertex3f (cos(thy0) / 2, sin(thy0) / 2, 0);
-      mi->polygon_count++;
-    }
-
-  glEnd ();
-
-  glPopMatrix();
-
-  if (lighting_p && !wire)
-    glDisable (GL_BLEND);
-}
-
-
-static void
-draw_scanlines (ModeInfo *mi)
-{
-  /* boing_configuration *bp = &bps[MI_SCREEN(mi)]; */
-  int wire = MI_IS_WIREFRAME(mi);
-  int w = MI_WIDTH(mi);
-  int h = MI_HEIGHT(mi);
-
-  if (h <= 300) return;
-
-  if (!wire)
-    {
-      glEnable (GL_BLEND);
-      glDisable (GL_DEPTH_TEST);
-    }
-
-  glMatrixMode(GL_PROJECTION);
-  glPushMatrix();
-  {
-    glLoadIdentity();
-    glMatrixMode(GL_MODELVIEW);
-    glPushMatrix();
-    {
-      int lh, ls;
-      int y;
-      glLoadIdentity();
-      glOrtho (0, w, 0, h, -1, 1);
-
-      if      (h > 500) lh = 4, ls = 4;
-      else if (h > 300) lh = 2, ls = 1;
-      else              lh = 1, ls = 1;
-
-      if (lh == 1)
-        glDisable (GL_BLEND);
-
-      glLineWidth (lh);
-      glColor4f (0, 0, 0, 0.3);
-
-      glBegin(GL_LINES);
-      for (y = 0; y < h; y += lh + ls)
-        {
-          glVertex3f (0, y, 0);
-          glVertex3f (w, y, 0);
-        }
-      glEnd();
-    }
-    glPopMatrix();
-  }
-  glMatrixMode(GL_PROJECTION);
-  glPopMatrix();
-  glMatrixMode(GL_MODELVIEW);
-
-  if (!wire)
-    {
-      glDisable (GL_BLEND);
-      glEnable (GL_DEPTH_TEST);
-    }
-}
-
-
-
-static void
-tick_physics (ModeInfo *mi)
-{
-  boing_configuration *bp = &bps[MI_SCREEN(mi)];
-  GLfloat s2 = ball_size / 2;
-  GLfloat max = 0.5 - s2;
-  GLfloat min = -max;
-
-  bp->ball_th += bp->ball_dth;
-  while (bp->ball_th > 360) bp->ball_th -= 360;
-  while (bp->ball_th < 0)   bp->ball_th += 360;
-
-  bp->ball_dx += bp->ball_ddx;
-  bp->ball_x  += bp->ball_dx;
-  if      (bp->ball_x < min) bp->ball_x = min, bp->ball_dx = -bp->ball_dx,
-    bp->ball_dth = -bp->ball_dth,
-    bp->ball_dx += (frand(bp->speed/2) - bp->speed);
-  else if (bp->ball_x > max) bp->ball_x = max, bp->ball_dx = -bp->ball_dx,
-    bp->ball_dth = -bp->ball_dth,
-    bp->ball_dx += (frand(bp->speed/2) - bp->speed);
-
-  bp->ball_dy += bp->ball_ddy;
-  bp->ball_y  += bp->ball_dy;
-  if      (bp->ball_y < min) bp->ball_y = min, bp->ball_dy = -bp->ball_dy;
-  else if (bp->ball_y > max) bp->ball_y = max, bp->ball_dy = -bp->ball_dy;
-
-  bp->ball_dz += bp->ball_ddz;
-  bp->ball_z  += bp->ball_dz;
-  if      (bp->ball_z < min) bp->ball_z = min, bp->ball_dz = -bp->ball_dz;
-  else if (bp->ball_z > max) bp->ball_z = max, bp->ball_dz = -bp->ball_dz;
-}
-
-
-
-/* Window management, etc
- */
-ENTRYPOINT void
-reshape_boing (ModeInfo *mi, int width, int height)
-{
-  GLfloat h = (GLfloat) height / (GLfloat) width;
-  int y = 0;
-
-  h *= 4.0 / 3.0;   /* Back in the caveman days we couldn't even afford
-                       square pixels! */
-
-  if (width > height * 5) {   /* tiny window: show middle */
-    height = width * 3/4;
-    y = -height/2;
-    h = height / (GLfloat) width;
-  }
-
-  glViewport (0, y, (GLint) width, (GLint) height);
-
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-
-  if (height > width)
-    {
-      GLfloat s = width / (GLfloat) height;
-      glScalef (s, s, s);
-    }
-
-  gluPerspective (8.0, 1/h, 1.0, 10.0);
-
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-  gluLookAt (0.0, 0.0, 8.0,
-             0.0, 0.0, 0.0,
-             0.0, 1.0, 0.0);
-
-  glClear(GL_COLOR_BUFFER_BIT);
-}
-
-
-ENTRYPOINT Bool
-boing_handle_event (ModeInfo *mi, XEvent *event)
-{
-  boing_configuration *bp = &bps[MI_SCREEN(mi)];
-
-  if (gltrackball_event_handler (event, bp->trackball,
-                                 MI_WIDTH (mi), MI_HEIGHT (mi),
-                                 &bp->button_down_p))
-    return True;
-
-  return False;
-}
-
-
-ENTRYPOINT void 
-init_boing (ModeInfo *mi)
-{
-  boing_configuration *bp;
-  int wire = MI_IS_WIREFRAME(mi);
-
-  MI_INIT (mi, bps);
-
-  bp = &bps[MI_SCREEN(mi)];
-
-  bp->glx_context = init_GL(mi);
-
-  if (tiles < 1) tiles = 1;
-
-  if (smooth_p)
-    {
-      if (meridians < 1) meridians = 1;
-      if (parallels < 1) parallels = 1;
-    }
-  else
-    {
-      if (meridians < 3) meridians = 3;
-      if (parallels < 2) parallels = 2;
-    }
-
-  if (meridians > 1 && meridians & 1) meridians++;  /* odd numbers look bad */
-
-
-  if (thickness <= 0) thickness = 0.001;
-  else if (thickness > 1) thickness = 1;
-
-  reshape_boing (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
-
-  parse_color (mi, "ballColor1",  ball_color1_str,  bp->ball_color1);
-  parse_color (mi, "ballColor2",  ball_color2_str,  bp->ball_color2);
-  parse_color (mi, "gridColor",   grid_color_str,   bp->grid_color);
-  parse_color (mi, "shadowColor", shadow_str,       bp->shadow_color);
-  parse_color (mi, "background",  bg_str,           bp->bg_color);
-
-  bp->shadow_color[3] = 0.9;
-
-  glClearColor (bp->bg_color[0], bp->bg_color[1], bp->bg_color[2], 1);
-
-  if (!wire)
-    {
-      glEnable(GL_DEPTH_TEST);
-      glEnable(GL_CULL_FACE);
-    }
-
-  bp->lightpos[0] = 0.5;
-  bp->lightpos[1] = 0.5;
-  bp->lightpos[2] = -1;
-  bp->lightpos[3] = 0;
-
-  if (lighting_p && !wire)
-    {
-      GLfloat amb[4] = {0, 0, 0, 1};
-      GLfloat dif[4] = {1, 1, 1, 1};
-      GLfloat spc[4] = {1, 1, 1, 1};
-      glEnable(GL_LIGHT0);
-      glLightfv(GL_LIGHT0, GL_AMBIENT,  amb);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE,  dif);
-      glLightfv(GL_LIGHT0, GL_SPECULAR, spc);
-    }
-
-  glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-  bp->speed = speed / 800.0;
-
-  bp->ball_dth = (spin ? -bp->speed * 7 * 360 : 0);
-
-  bp->ball_x   = 0.5 - ((ball_size/2) + frand(1-ball_size));
-  bp->ball_y   = 0.2;
-  bp->ball_dx  = bp->speed * 6 + frand(bp->speed);
-  bp->ball_ddy = -bp->speed;
-
-  bp->ball_dz  = bp->speed * 6 + frand(bp->speed);
-
-  bp->trackball = gltrackball_init (False);
-}
-
-
-ENTRYPOINT void
-draw_boing (ModeInfo *mi)
-{
-  boing_configuration *bp = &bps[MI_SCREEN(mi)];
-  Display *dpy = MI_DISPLAY(mi);
-  Window window = MI_WINDOW(mi);
-
-  if (!bp->glx_context)
-    return;
-
-  glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *bp->glx_context);
-
-  mi->polygon_count = 0;
-
-  glShadeModel(GL_SMOOTH);
-
-  glEnable(GL_NORMALIZE);
-
-  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-  if (! bp->button_down_p)
-    tick_physics (mi);
-
-  glPushMatrix ();
-
-  {
-    double rot = current_device_rotation();
-    glRotatef(rot, 0, 0, 1);
-/*
-    if ((rot >  45 && rot <  135) ||
-        (rot < -45 && rot > -135))
-      {
-        GLfloat s = MI_WIDTH(mi) / (GLfloat) MI_HEIGHT(mi);
-        glScalef (1/s, s, 1);
-      }
-*/
-  }
-
-  gltrackball_rotate (bp->trackball);
-
-  glLightfv (GL_LIGHT0, GL_POSITION, bp->lightpos);
-
-  glDisable (GL_CULL_FACE);
-  glDisable (GL_DEPTH_TEST);
-
-  glEnable (GL_LINE_SMOOTH);
-  glHint (GL_LINE_SMOOTH_HINT, GL_NICEST);
-  glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-  glEnable (GL_BLEND);
-
-  draw_box (mi);
-  draw_shadow (mi);
-
-  glEnable (GL_CULL_FACE);
-  glEnable (GL_DEPTH_TEST);
-
-  draw_ball (mi);
-  if (scanlines_p)
-    draw_scanlines (mi);
-
-  glPopMatrix ();
-
-  if (mi->fps_p) do_fps (mi);
-  glFinish();
-
-  glXSwapBuffers(dpy, window);
-}
-
-
-ENTRYPOINT void
-free_boing (ModeInfo *mi)
-{
-  boing_configuration *bp = &bps[MI_SCREEN(mi)];
-  if (!bp->glx_context) return;
-  glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *bp->glx_context);
-  if (bp->trackball) gltrackball_free (bp->trackball);
-}
-
-XSCREENSAVER_MODULE ("Boing", boing)
-
-#endif /* USE_GL */