6.09HEADmaster

1 files changed, 0 insertions, 454 deletions

diff --git a/hacks/glx/glknots.c b/hacks/glx/glknots.c
deleted file mode 100644
index 5bcb97f..0000000
--- a/hacks/glx/glknots.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/* glknots, Copyright (c) 2003-2014 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.
- *
- * Generates some 3D knots (closed loops).
- * Inspired by Paul Bourke <pbourke@swin.edu.au> at
- * http://astronomy.swin.edu.au/~pbourke/curves/knot/
- */
-
-#define DEFAULTS	"*delay:	30000       \n" \
-			"*showFPS:      False       \n" \
-			"*wireframe:    False       \n" \
-			"*suppressRotationAnimation: True\n" \
-
-# define release_knot 0
-
-#include "xlockmore.h"
-#include "colors.h"
-#include "tube.h"
-#include "rotator.h"
-#include "gltrackball.h"
-#include <ctype.h>
-
-#ifdef USE_GL /* whole file */
-
-#define DEF_SPIN        "XYZ"
-#define DEF_WANDER      "True"
-#define DEF_SPEED       "1.0"
-#define DEF_THICKNESS   "0.3"
-#define DEF_SEGMENTS    "800"
-#define DEF_DURATION    "8"
-
-typedef struct {
-  GLXContext *glx_context;
-  rotator *rot;
-  trackball_state *trackball;
-  Bool button_down_p;
-
-  GLuint knot_list;
-
-  int ncolors;
-  XColor *colors;
-  int ccolor;
-
-  int mode;  /* 0 = normal, 1 = out, 2 = in */
-  int mode_tick;
-  Bool clear_p;
-
-  time_t last_time;
-  int draw_tick;
-
-} knot_configuration;
-
-static knot_configuration *bps = NULL;
-
-static char *do_spin;
-static GLfloat speed;
-static Bool do_wander;
-static GLfloat thickness;
-static unsigned int segments;
-static int duration;
-
-static XrmOptionDescRec opts[] = {
-  { "-spin",   ".spin",   XrmoptionSepArg, 0 },
-  { "+spin",   ".spin",   XrmoptionNoArg, "" },
-  { "-wander", ".wander", XrmoptionNoArg, "True" },
-  { "+wander", ".wander", XrmoptionNoArg, "False" },
-  { "-speed",  ".speed",  XrmoptionSepArg, 0 },
-  { "-thickness", ".thickness",  XrmoptionSepArg, 0 },
-  { "-segments",  ".segments",   XrmoptionSepArg, 0 },
-  { "-duration",  ".duration",   XrmoptionSepArg, 0 },
-};
-
-static argtype vars[] = {
-  {&do_spin,   "spin",   "Spin",   DEF_SPIN,   t_String},
-  {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
-  {&speed,     "speed",  "Speed",  DEF_SPEED,  t_Float},
-  {&thickness, "thickness", "Thickness",  DEF_THICKNESS, t_Float},
-  {&segments,  "segments",  "Segments",   DEF_SEGMENTS,  t_Int},
-  {&duration,  "duration",  "Duration",   DEF_DURATION,  t_Int},
-};
-
-ENTRYPOINT ModeSpecOpt knot_opts = {countof(opts), opts, countof(vars), vars, NULL};
-
-
-static void
-make_knot (ModeInfo *mi)
-{
-  int wire = MI_IS_WIREFRAME(mi);
-
-  GLfloat diam = (4 * thickness);
-  int faces = (wire ? 3 : 6);
-
-  unsigned int i;
-  double x, y, z, ox=0, oy=0, oz=0;
-  double mu;
-
-  double p[9];
-
-  Bool blobby_p = (0 == (random() % 5));
-  Bool type = (random() % 2);
-
-  for (i = 0; i < countof(p); i++)
-    {
-      p[i] = 1 + (random() % 4);
-      if (! (random() % 3))
-        p[i] += (random() % 5);
-    }
-
-  if (type == 1)
-    {
-      p[0] += 4;
-      p[1] *= ((p[0] + p[0]) / 10);
-      blobby_p = False;
-    }
-
-  mi->polygon_count = 0;
-
-  for (i = 0; i <= segments; i++)
-    {
-      if (type == 0)
-        {
-          mu = i * (M_PI * 2) / segments;
-          x = 10 * (cos(mu) + cos(p[0]*mu)) + cos(p[1]*mu) + cos(p[2]*mu);
-          y = 6 * sin(mu) + 10 * sin(p[3]*mu);
-          z = 16 * sin(p[4]*mu) * sin(p[5]*mu/2) + p[6]*sin(p[7]*mu) -
-            2 * sin(p[8]*mu);
-        }
-      else if (type == 1)
-        {
-          mu = i * (M_PI * 2) * p[0] / (double) segments;
-          x = 10 * cos(mu) * (1 + cos(p[1] * mu/ p[0]) / 2.0);
-          y = 25 * sin(p[1] * mu / p[0]) / 2.0;
-          z = 10 * sin(mu) * (1 + cos(p[1] * mu/ p[0]) / 2.0);
-        }
-      else
-        abort();
-
-      if (i != 0)
-        {
-          GLfloat dist = sqrt ((x-ox)*(x-ox) +
-                               (y-oy)*(y-oy) +
-                               (z-oz)*(z-oz));
-          GLfloat di;
-          if (!blobby_p)
-            di = diam;
-          else
-            {
-              di = dist * (segments / 500.0);
-              di = (di * di * 3);
-            }
-
-          mi->polygon_count += tube (ox, oy, oz,
-                                     x, y, z,
-                                     di, dist/3,
-                                     faces, True, wire, wire);
-        }
-
-      ox = x;
-      oy = y;
-      oz = z;
-   }
-}
-
-
-/* Window management, etc
- */
-ENTRYPOINT void
-reshape_knot (ModeInfo *mi, int width, int height)
-{
-  GLfloat 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, (GLint) width, (GLint) height);
-
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  gluPerspective (30.0, 1/h, 1.0, 100.0);
-
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-  gluLookAt( 0.0, 0.0, 30.0,
-             0.0, 0.0, 0.0,
-             0.0, 1.0, 0.0);
-
-  {
-    GLfloat s = (MI_WIDTH(mi) < MI_HEIGHT(mi)
-                 ? (MI_WIDTH(mi) / (GLfloat) MI_HEIGHT(mi))
-                 : 1);
-    glScalef (s, s, s);
-  }
-
-  glClear(GL_COLOR_BUFFER_BIT);
-}
-
-
-static void
-new_knot (ModeInfo *mi)
-{
-  knot_configuration *bp = &bps[MI_SCREEN(mi)];
-  int i;
-
-  bp->clear_p = !!(random() % 15);
-
-  bp->ncolors = 128;
-  bp->colors = (XColor *) calloc(bp->ncolors, sizeof(XColor));
-  make_smooth_colormap (0, 0, 0,
-                        bp->colors, &bp->ncolors,
-                        False, 0, False);
-
-  for (i = 0; i < bp->ncolors; i++)
-    {
-      /* make colors twice as bright */
-      bp->colors[i].red   = (bp->colors[i].red   >> 2) + 0x7FFF;
-      bp->colors[i].green = (bp->colors[i].green >> 2) + 0x7FFF;
-      bp->colors[i].blue  = (bp->colors[i].blue  >> 2) + 0x7FFF;
-    }
-
-  glNewList (bp->knot_list, GL_COMPILE);
-  make_knot (mi);
-  glEndList ();
-}
-
-
-ENTRYPOINT Bool
-knot_handle_event (ModeInfo *mi, XEvent *event)
-{
-  knot_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;
-  else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
-    {
-      bp->last_time = 1;
-      return True;
-    }
-
-  return False;
-}
-
-
-
-ENTRYPOINT void 
-init_knot (ModeInfo *mi)
-{
-  knot_configuration *bp;
-  int wire = MI_IS_WIREFRAME(mi);
-
-  MI_INIT (mi, bps);
-
-  bp = &bps[MI_SCREEN(mi)];
-
-  bp->glx_context = init_GL(mi);
-
-  if (thickness <= 0) thickness = 0.001;
-  else if (thickness > 1) thickness = 1;
-
-  if (segments < 10) segments = 10;
-
-  reshape_knot (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
-
-  if (!wire)
-    {
-      GLfloat pos[4] = {1.0, 1.0, 1.0, 0.0};
-      GLfloat amb[4] = {0.0, 0.0, 0.0, 1.0};
-      GLfloat dif[4] = {1.0, 1.0, 1.0, 1.0};
-      GLfloat spc[4] = {0.0, 1.0, 1.0, 1.0};
-
-      glEnable(GL_LIGHTING);
-      glEnable(GL_LIGHT0);
-      glEnable(GL_DEPTH_TEST);
-      glEnable(GL_CULL_FACE);
-
-      glLightfv(GL_LIGHT0, GL_POSITION, pos);
-      glLightfv(GL_LIGHT0, GL_AMBIENT,  amb);
-      glLightfv(GL_LIGHT0, GL_DIFFUSE,  dif);
-      glLightfv(GL_LIGHT0, GL_SPECULAR, spc);
-    }
-
-  {
-    Bool spinx=False, spiny=False, spinz=False;
-    double spin_speed   = 2.0;
-    double wander_speed = 0.05;
-    double spin_accel   = 0.2;
-
-    char *s = do_spin;
-    while (*s)
-      {
-        if      (*s == 'x' || *s == 'X') spinx = True;
-        else if (*s == 'y' || *s == 'Y') spiny = True;
-        else if (*s == 'z' || *s == 'Z') spinz = True;
-        else if (*s == '0') ;
-        else
-          {
-            fprintf (stderr,
-         "%s: spin must contain only the characters X, Y, or Z (not \"%s\")\n",
-                     progname, do_spin);
-            exit (1);
-          }
-        s++;
-      }
-
-    bp->rot = make_rotator (spinx ? spin_speed : 0,
-                            spiny ? spin_speed : 0,
-                            spinz ? spin_speed : 0,
-                            spin_accel,
-                            do_wander ? wander_speed : 0,
-                            (spinx && spiny && spinz));
-    bp->trackball = gltrackball_init (True);
-  }
-
-  bp->knot_list = glGenLists (1);
-  new_knot(mi);
-
-  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-
-ENTRYPOINT void
-draw_knot (ModeInfo *mi)
-{
-  knot_configuration *bp = &bps[MI_SCREEN(mi)];
-  Display *dpy = MI_DISPLAY(mi);
-  Window window = MI_WINDOW(mi);
-
-  GLfloat bcolor[4] = {0.0, 0.0, 0.0, 1.0};
-  GLfloat bspec[4]  = {1.0, 1.0, 1.0, 1.0};
-  GLfloat bshiny    = 128.0;
-
-  if (!bp->glx_context)
-    return;
-
-  glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *bp->glx_context);
-
-  if (bp->mode == 0)
-    {
-      if (bp->draw_tick++ > 10)
-        {
-          time_t now = time((time_t *) 0);
-          if (bp->last_time == 0) bp->last_time = now;
-          bp->draw_tick = 0;
-          if (!bp->button_down_p &&
-              now - bp->last_time >= duration)
-            {
-              bp->mode = 1;    /* go out */
-              bp->mode_tick = 10 / speed;
-              bp->last_time = now;
-            }
-        }
-    }
-  else if (bp->mode == 1)   /* out */
-    {
-      if (--bp->mode_tick <= 0)
-        {
-          new_knot (mi);
-          bp->mode_tick = 10 / speed;
-          bp->mode = 2;  /* go in */
-        }
-    }
-  else if (bp->mode == 2)   /* in */
-    {
-      if (--bp->mode_tick <= 0)
-        bp->mode = 0;  /* normal */
-    }
-  else
-    abort();
-
-  glShadeModel(GL_SMOOTH);
-
-  glEnable(GL_DEPTH_TEST);
-  glEnable(GL_NORMALIZE);
-  glEnable(GL_CULL_FACE);
-
-  if (bp->clear_p)
-    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-  glPushMatrix ();
-
-  {
-    double x, y, z;
-    get_position (bp->rot, &x, &y, &z, !bp->button_down_p);
-    glTranslatef((x - 0.5) * 8,
-                 (y - 0.5) * 8,
-                 (z - 0.5) * 15);
-
-    gltrackball_rotate (bp->trackball);
-
-    get_rotation (bp->rot, &x, &y, &z, !bp->button_down_p);
-
-    glRotatef (x * 360, 1.0, 0.0, 0.0);
-    glRotatef (y * 360, 0.0, 1.0, 0.0);
-    glRotatef (z * 360, 0.0, 0.0, 1.0);
-  }
-
-  bcolor[0] = bp->colors[bp->ccolor].red   / 65536.0;
-  bcolor[1] = bp->colors[bp->ccolor].green / 65536.0;
-  bcolor[2] = bp->colors[bp->ccolor].blue  / 65536.0;
-  bp->ccolor++;
-  if (bp->ccolor >= bp->ncolors) bp->ccolor = 0;
-
-  glMaterialfv (GL_FRONT, GL_SPECULAR,            bspec);
-  glMateriali  (GL_FRONT, GL_SHININESS,           bshiny);
-  glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, bcolor);
-
-  glScalef(0.25, 0.25, 0.25);
-
-  if (bp->mode != 0)
-    {
-      GLfloat s = (bp->mode == 1
-                   ? bp->mode_tick / (10 / speed)
-                   : ((10 / speed) - bp->mode_tick + 1) / (10 / speed));
-      glScalef (s, s, s);
-    }
-
-  glCallList (bp->knot_list);
-
-  glPopMatrix ();
-
-  if (mi->fps_p) do_fps (mi);
-  glFinish();
-
-  glXSwapBuffers(dpy, window);
-}
-
-
-ENTRYPOINT void
-free_knot (ModeInfo *mi)
-{
-  knot_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);
-  if (bp->rot) free_rotator (bp->rot);
-  if (bp->colors) free (bp->colors);
-  if (glIsList(bp->knot_list)) glDeleteLists(bp->knot_list, 1);
-}
-
-XSCREENSAVER_MODULE_2 ("GLKnots", glknots, knot)
-
-#endif /* USE_GL */