+++ /dev/null
-/* -*- Mode: C; tab-width: 4 -*-
- * hop --- real plane fractals.
- */
-#if !defined( lint ) && !defined( SABER )
-static const char sccsid[] = "@(#)hop.c 4.02 97/04/01 xlockmore";
-#endif
-
-/* Copyright (c) 1988-91 by Patrick J. Naughton.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted,
- * provided that the above copyright notice appear in all copies and that
- * both that copyright notice and this permission notice appear in
- * supporting documentation.
- *
- * This file is provided AS IS with no warranties of any kind. The author
- * shall have no liability with respect to the infringement of copyrights,
- * trade secrets or any patents by this file or any part thereof. In no
- * event will the author be liable for any lost revenue or profits or
- * other special, indirect and consequential damages.
- *
- * Revision History:
- * Changes of David Bagley <bagleyd@bigfoot.com>
- * 24-Jun-97: EJK and RR functions stolen from xmartin2.2
- * Ed Kubaitis <ejk@ux2.cso.uiuc.edu> ejk functions and xmartin
- * Renaldo Recuerdo rr function, generalized exponent version
- * of the Barry Martin's square root function
- * 10-May-97: jwz@jwz.org: ported from xlockmore 4.03a10 to be a
- * standalone program and thus usable with xscreensaver
- * (I threw away my 1992 port and started over.)
- * 27-Jul-95: added Peter de Jong's hop from Scientific American
- * July 87 p. 111. Sometimes they are amazing but there are a
- * few duds (I did not see a pattern in the parameters).
- * 29-Mar-95: changed name from hopalong to hop
- * 09-Dec-94: added Barry Martin's sine hop
- *
- * (12-Aug-92: jwz@lucid.com: made xlock version run standalone.)
- *
- * Changes of Patrick J. Naughton
- * 29-Oct-90: fix bad (int) cast.
- * 29-Jul-90: support for multiple screens.
- * 08-Jul-90: new timing and colors and new algorithm for fractals.
- * 15-Dec-89: Fix for proper skipping of {White,Black}Pixel() in colors.
- * 08-Oct-89: Fixed long standing typo bug in RandomInitHop();
- * Fixed bug in memory allocation in init_hop();
- * Moved seconds() to an extern.
- * Got rid of the % mod since .mod is slow on a sparc.
- * 20-Sep-89: Lint.
- * 31-Aug-88: Forked from xlock.c for modularity.
- * 23-Mar-88: Coded HOPALONG routines from Scientific American Sept. 86 p. 14.
- * Hopalong was attributed to Barry Martin of Aston University
- * (Birmingham, England)
- */
-
-#ifdef STANDALONE
-# define PROGCLASS "Hopalong"
-# define HACK_INIT init_hop
-# define HACK_DRAW draw_hop
-# define HACK_FREE release_hop
-# define hop_opts xlockmore_opts
-# define DEFAULTS "*delay: 10000 \n" \
- "*count: 1000 \n" \
- "*cycles: 2500 \n" \
- "*ncolors: 200 \n"
-# define SMOOTH_COLORS
-# include "xlockmore.h" /* from the xscreensaver distribution */
-# include "erase.h"
-#else /* !STANDALONE */
-# include "xlock.h" /* from the xlockmore distribution */
-#endif /* !STANDALONE */
-
-#define DEF_MARTIN "False"
-#define DEF_POPCORN "False"
-#define DEF_EJK1 "False"
-#define DEF_EJK2 "False"
-#define DEF_EJK3 "False"
-#define DEF_EJK4 "False"
-#define DEF_EJK5 "False"
-#define DEF_EJK6 "False"
-#define DEF_RR "False"
-#define DEF_JONG "False"
-#define DEF_SINE "False"
-
-static Bool martin;
-static Bool popcorn;
-static Bool ejk1;
-static Bool ejk2;
-static Bool ejk3;
-static Bool ejk4;
-static Bool ejk5;
-static Bool ejk6;
-static Bool rr;
-static Bool jong;
-static Bool sine;
-
-static XrmOptionDescRec opts[] =
-{
- {"-martin", ".hop.martin", XrmoptionNoArg, (caddr_t) "on"},
- {"+martin", ".hop.martin", XrmoptionNoArg, (caddr_t) "off"},
- {"-popcorn", ".hop.popcorn", XrmoptionNoArg, (caddr_t) "on"},
- {"+popcorn", ".hop.popcorn", XrmoptionNoArg, (caddr_t) "off"},
- {"-ejk1", ".hop.ejk1", XrmoptionNoArg, (caddr_t) "on"},
- {"+ejk1", ".hop.ejk1", XrmoptionNoArg, (caddr_t) "off"},
- {"-ejk2", ".hop.ejk2", XrmoptionNoArg, (caddr_t) "on"},
- {"+ejk2", ".hop.ejk2", XrmoptionNoArg, (caddr_t) "off"},
- {"-ejk3", ".hop.ejk3", XrmoptionNoArg, (caddr_t) "on"},
- {"+ejk3", ".hop.ejk3", XrmoptionNoArg, (caddr_t) "off"},
- {"-ejk4", ".hop.ejk4", XrmoptionNoArg, (caddr_t) "on"},
- {"+ejk4", ".hop.ejk4", XrmoptionNoArg, (caddr_t) "off"},
- {"-ejk5", ".hop.ejk5", XrmoptionNoArg, (caddr_t) "on"},
- {"+ejk5", ".hop.ejk5", XrmoptionNoArg, (caddr_t) "off"},
- {"-ejk6", ".hop.ejk6", XrmoptionNoArg, (caddr_t) "on"},
- {"+ejk6", ".hop.ejk6", XrmoptionNoArg, (caddr_t) "off"},
- {"-rr", ".hop.rr", XrmoptionNoArg, (caddr_t) "on"},
- {"+rr", ".hop.rr", XrmoptionNoArg, (caddr_t) "off"},
- {"-jong", ".hop.jong", XrmoptionNoArg, (caddr_t) "on"},
- {"+jong", ".hop.jong", XrmoptionNoArg, (caddr_t) "off"},
- {"-sine", ".hop.sine", XrmoptionNoArg, (caddr_t) "on"},
- {"+sine", ".hop.sine", XrmoptionNoArg, (caddr_t) "off"}
-};
-static argtype vars[] =
-{
- {(caddr_t *) & martin, "martin", "Martin", DEF_MARTIN, t_Bool},
- {(caddr_t *) & popcorn, "popcorn", "Popcorn", DEF_POPCORN, t_Bool},
- {(caddr_t *) & ejk1, "ejk1", "EJK1", DEF_EJK1, t_Bool},
- {(caddr_t *) & ejk2, "ejk2", "EJK2", DEF_EJK2, t_Bool},
- {(caddr_t *) & ejk3, "ejk3", "EJK3", DEF_EJK3, t_Bool},
- {(caddr_t *) & ejk4, "ejk4", "EJK4", DEF_EJK4, t_Bool},
- {(caddr_t *) & ejk5, "ejk5", "EJK5", DEF_EJK5, t_Bool},
- {(caddr_t *) & ejk6, "ejk6", "EJK6", DEF_EJK6, t_Bool},
- {(caddr_t *) & rr, "rr", "RR", DEF_RR, t_Bool},
- {(caddr_t *) & jong, "jong", "Jong", DEF_JONG, t_Bool},
- {(caddr_t *) & sine, "sine", "Sine", DEF_SINE, t_Bool}
-};
-static OptionStruct desc[] =
-{
- {"-/+martin", "turn on/off sqrt format"},
- {"-/+popcorn", "turn on/off Clifford A. Pickover's popcorn format"},
- {"-/+ejk1", "turn on/off ejk1 format"},
- {"-/+ejk2", "turn on/off ejk2 format"},
- {"-/+ejk3", "turn on/off ejk3 format"},
- {"-/+ejk4", "turn on/off ejk4 format"},
- {"-/+ejk5", "turn on/off ejk5 format"},
- {"-/+ejk6", "turn on/off ejk6 format"},
- {"-/+rr", "turn on/off rr format"},
- {"-/+jong", "turn on/off jong format"},
- {"-/+sine", "turn on/off sine format"}
-};
-
-ModeSpecOpt hop_opts =
-{sizeof opts / sizeof opts[0], opts, sizeof vars / sizeof vars[0], vars, desc};
-
-#ifdef USE_MODULES
-ModStruct hop_description =
-{"hop", "init_hop", "draw_hop", "release_hop",
- "refresh_hop", "init_hop", NULL, &hop_opts,
- 10000, 1000, 2500, 1, 64, 1.0, "",
- "Shows real plane iterated fractals", 0, NULL};
-
-#endif
-
-#define MARTIN 0
-#define POPCORN 7
-#define SINE 8
-#define EJK1 1
-#define EJK2 2
-#define EJK3 9
-#define EJK4 3
-#define EJK5 4
-#define EJK6 10
-#define RR 5
-#define JONG 6
-#ifdef OFFENDING
-#define OPS 8 /* 8, 9, 10 might be too close to a swastika for some... */
-#else
-#define OPS 11
-#endif
-
-typedef struct {
- int centerx, centery; /* center of the screen */
- double a, b, c, d;
- double i, j; /* hopalong parameters */
- int inc;
- int pix;
- int op;
- int count;
- int bufsize;
- XPoint *pointBuffer; /* pointer for XDrawPoints */
-} hopstruct;
-
-static hopstruct *hops = NULL;
-
-void
-init_hop(ModeInfo * mi)
-{
- Display *display = MI_DISPLAY(mi);
- GC gc = MI_GC(mi);
- hopstruct *hp;
- double range;
-
- if (hops == NULL) {
- if ((hops = (hopstruct *) calloc(MI_NUM_SCREENS(mi),
- sizeof (hopstruct))) == NULL)
- return;
- }
- hp = &hops[MI_SCREEN(mi)];
-
- hp->centerx = MI_WIDTH(mi) / 2;
- hp->centery = MI_HEIGHT(mi) / 2;
- /* Make the other operations less common since they are less interesting */
- if (MI_IS_FULLRANDOM(mi)) {
- hp->op = NRAND(OPS);
- } else {
- if (martin)
- hp->op = MARTIN;
- else if (popcorn)
- hp->op = POPCORN;
- else if (ejk1)
- hp->op = EJK1;
- else if (ejk2)
- hp->op = EJK2;
- else if (ejk3)
- hp->op = EJK3;
- else if (ejk4)
- hp->op = EJK4;
- else if (ejk5)
- hp->op = EJK5;
- else if (ejk6)
- hp->op = EJK6;
- else if (rr)
- hp->op = RR;
- else if (jong)
- hp->op = JONG;
- else if (sine)
- hp->op = SINE;
- else
- hp->op = NRAND(OPS);
- }
-
- range = sqrt((double) hp->centerx * hp->centerx +
- (double) hp->centery * hp->centery) / (1.0 + LRAND() / MAXRAND);
- hp->i = hp->j = 0.0;
- hp->inc = (int) ((LRAND() / MAXRAND) * 200) - 100;
-#undef XMARTIN
- switch (hp->op) {
- case MARTIN:
-#ifdef XMARTIN
- hp->a = (LRAND() / MAXRAND) * 1500.0 + 40.0;
- hp->b = (LRAND() / MAXRAND) * 17.0 + 3.0;
- hp->c = (LRAND() / MAXRAND) * 3000.0 + 100.0;
-#else
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 20.0;
- hp->b = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 20.0;
- if (LRAND() & 1)
- hp->c = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 20.0;
- else
- hp->c = 0.0;
-#endif
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "sqrt a=%g, b=%g, c=%g\n", hp->a, hp->b, hp->c);
- break;
- case EJK1:
-#ifdef XMARTIN
- hp->a = (LRAND() / MAXRAND) * 500.0;
- hp->c = (LRAND() / MAXRAND) * 100.0 + 10.0;
-#else
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 30.0;
- hp->c = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 40.0;
-#endif
- hp->b = (LRAND() / MAXRAND) * 0.4;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "ejk1 a=%g, b=%g, c=%g\n", hp->a, hp->b, hp->c);
- break;
- case EJK2:
-#ifdef XMARTIN
- hp->a = (LRAND() / MAXRAND) * 500.0;
-#else
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 30.0;
-#endif
- hp->b = pow(10.0, 6.0 + (LRAND() / MAXRAND) * 24.0);
- if (LRAND() & 1)
- hp->b = -hp->b;
- hp->c = pow(10.0, (LRAND() / MAXRAND) * 9.0);
- if (LRAND() & 1)
- hp->c = -hp->c;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "ejk2 a=%g, b=%g, c=%g\n", hp->a, hp->b, hp->c);
- break;
- case EJK3:
-#ifdef XMARTIN
- hp->a = (LRAND() / MAXRAND) * 500.0;
- hp->c = (LRAND() / MAXRAND) * 80.0 + 30.0;
-#else
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 30.0;
- hp->c = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 70.0;
-#endif
- hp->b = (LRAND() / MAXRAND) * 0.35 + 0.5;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "ejk3 a=%g, b=%g, c=%g\n", hp->a, hp->b, hp->c);
- break;
- case EJK4:
-#ifdef XMARTIN
- hp->a = (LRAND() / MAXRAND) * 1000.0;
- hp->c = (LRAND() / MAXRAND) * 40.0 + 30.0;
-#else
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 2.0;
- hp->c = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 200.0;
-#endif
- hp->b = (LRAND() / MAXRAND) * 9.0 + 1.0;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "ejk4 a=%g, b=%g, c=%g\n", hp->a, hp->b, hp->c);
- break;
- case EJK5:
-#ifdef XMARTIN
- hp->a = (LRAND() / MAXRAND) * 600.0;
- hp->c = (LRAND() / MAXRAND) * 90.0 + 20.0;
-#else
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 2.0;
- hp->c = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 200.0;
-#endif
- hp->b = (LRAND() / MAXRAND) * 0.3 + 0.1;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "ejk5 a=%g, b=%g, c=%g\n", hp->a, hp->b, hp->c);
- break;
- case EJK6:
-#ifdef XMARTIN
- hp->a = (LRAND() / MAXRAND) * 100.0 + 550.0;
-#else
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 30.0;
-#endif
- hp->b = (LRAND() / MAXRAND) + 0.5;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "ejk6 a=%g, b=%g\n", hp->a, hp->b);
- break;
- case RR:
-#ifdef XMARTIN
- hp->a = (LRAND() / MAXRAND) * 100.0;
- hp->b = (LRAND() / MAXRAND) * 20.0;
- hp->c = (LRAND() / MAXRAND) * 200.0;
-#else
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 40.0;
- hp->b = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 200.0;
- hp->c = ((LRAND() / MAXRAND) * 2.0 - 1.0) * range / 20.0;
-#endif
- hp->d = (LRAND() / MAXRAND) * 0.9;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "rr a=%g, b=%g, c=%g, d=%g\n",
- hp->a, hp->b, hp->c, hp->d);
- break;
- case POPCORN:
- hp->a = 0.0;
- hp->b = 0.0;
- hp->c = ((LRAND() / MAXRAND) * 2.0 - 1.0) * 0.24 + 0.25;
- hp->inc = 100;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "popcorn a=%g, b=%g, c=%g, d=%g\n",
- hp->a, hp->b, hp->c, hp->d);
- break;
- case JONG:
- hp->a = ((LRAND() / MAXRAND) * 2.0 - 1.0) * M_PI;
- hp->b = ((LRAND() / MAXRAND) * 2.0 - 1.0) * M_PI;
- hp->c = ((LRAND() / MAXRAND) * 2.0 - 1.0) * M_PI;
- hp->d = ((LRAND() / MAXRAND) * 2.0 - 1.0) * M_PI;
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "jong a=%g, b=%g, c=%g, d=%g\n",
- hp->a, hp->b, hp->c, hp->d);
- break;
- case SINE: /* MARTIN2 */
-#ifdef XMARTIN
- hp->a = M_PI + ((LRAND() / MAXRAND) * 2.0 - 1.0) * 0.07;
-#else
- hp->a = M_PI + ((LRAND() / MAXRAND) * 2.0 - 1.0) * 0.7;
-#endif
- if (MI_IS_VERBOSE(mi))
- (void) fprintf(stdout, "sine a=%g\n", hp->a);
- break;
- }
- if (MI_NPIXELS(mi) > 2)
- hp->pix = NRAND(MI_NPIXELS(mi));
- hp->bufsize = MI_COUNT(mi);
-
- if (!hp->pointBuffer)
- hp->pointBuffer = (XPoint *) malloc(hp->bufsize * sizeof (XPoint));
-
- MI_CLEARWINDOW(mi);
-
- XSetForeground(display, gc, MI_WHITE_PIXEL(mi));
- hp->count = 0;
-}
-
-
-void
-draw_hop(ModeInfo * mi)
-{
- hopstruct *hp = &hops[MI_SCREEN(mi)];
- double oldj, oldi;
- XPoint *xp = hp->pointBuffer;
- int k = hp->bufsize;
-
- MI_IS_DRAWN(mi) = True;
-
- hp->inc++;
- if (MI_NPIXELS(mi) > 2) {
- XSetForeground(MI_DISPLAY(mi), MI_GC(mi), MI_PIXEL(mi, hp->pix));
- if (++hp->pix >= MI_NPIXELS(mi))
- hp->pix = 0;
- }
- while (k--) {
- oldj = hp->j;
- switch (hp->op) {
- case MARTIN: /* SQRT, MARTIN1 */
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj + ((hp->i < 0)
- ? sqrt(fabs(hp->b * oldi - hp->c))
- : -sqrt(fabs(hp->b * oldi - hp->c)));
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- case EJK1:
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj - ((hp->i > 0) ? (hp->b * oldi - hp->c) :
- -(hp->b * oldi - hp->c));
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- case EJK2:
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj - ((hp->i < 0) ? log(fabs(hp->b * oldi - hp->c)) :
- -log(fabs(hp->b * oldi - hp->c)));
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- case EJK3:
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj - ((hp->i > 0) ? sin(hp->b * oldi) - hp->c :
- -sin(hp->b * oldi) - hp->c);
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- case EJK4:
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj - ((hp->i > 0) ? sin(hp->b * oldi) - hp->c :
- -sqrt(fabs(hp->b * oldi - hp->c)));
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- case EJK5:
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj - ((hp->i > 0) ? sin(hp->b * oldi) - hp->c :
- -(hp->b * oldi - hp->c));
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- case EJK6:
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj - asin((hp->b * oldi) - (long) (hp->b * oldi));
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- case RR: /* RR1 */
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj - ((hp->i < 0) ? -pow(fabs(hp->b * oldi - hp->c), hp->d) :
- pow(fabs(hp->b * oldi - hp->c), hp->d));
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- case POPCORN:
-#define HVAL 0.05
-#define INCVAL 50
- {
- double tempi, tempj;
-
- if (hp->inc >= 100)
- hp->inc = 0;
- if (hp->inc == 0) {
- if (hp->a++ >= INCVAL) {
- hp->a = 0;
- if (hp->b++ >= INCVAL)
- hp->b = 0;
- }
- hp->i = (-hp->c * INCVAL / 2 + hp->c * hp->a) * M_PI / 180.0;
- hp->j = (-hp->c * INCVAL / 2 + hp->c * hp->b) * M_PI / 180.0;
- }
- tempi = hp->i - HVAL * sin(hp->j + tan(3.0 * hp->j));
- tempj = hp->j - HVAL * sin(hp->i + tan(3.0 * hp->i));
- xp->x = hp->centerx + (int) (MI_WIDTH(mi) / 40 * tempi);
- xp->y = hp->centery + (int) (MI_HEIGHT(mi) / 40 * tempj);
- hp->i = tempi;
- hp->j = tempj;
- }
- break;
- case JONG:
- if (hp->centerx > 0)
- oldi = hp->i + 4 * hp->inc / hp->centerx;
- else
- oldi = hp->i;
- hp->j = sin(hp->c * hp->i) - cos(hp->d * hp->j);
- hp->i = sin(hp->a * oldj) - cos(hp->b * oldi);
- xp->x = hp->centerx + (int) (hp->centerx * (hp->i + hp->j) / 4.0);
- xp->y = hp->centery - (int) (hp->centery * (hp->i - hp->j) / 4.0);
- break;
- case SINE: /* MARTIN2 */
- oldi = hp->i + hp->inc;
- hp->j = hp->a - hp->i;
- hp->i = oldj - sin(oldi);
- xp->x = hp->centerx + (int) (hp->i + hp->j);
- xp->y = hp->centery - (int) (hp->i - hp->j);
- break;
- }
- xp++;
- }
- XDrawPoints(MI_DISPLAY(mi), MI_WINDOW(mi), MI_GC(mi),
- hp->pointBuffer, hp->bufsize, CoordModeOrigin);
- if (++hp->count > MI_CYCLES(mi)) {
-#ifdef STANDALONE
- erase_full_window(MI_DISPLAY(mi), MI_WINDOW(mi));
-#endif /* STANDALONE */
- init_hop(mi);
- }
-}
-
-void
-release_hop(ModeInfo * mi)
-{
- if (hops != NULL) {
- int screen;
-
- for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++) {
- hopstruct *hp = &hops[screen];
-
- if (hp->pointBuffer)
- (void) free((void *) hp->pointBuffer);
- }
-
- (void) free((void *) hops);
- hops = NULL;
- }
-}
-
-void
-refresh_hop(ModeInfo * mi)
-{
- MI_CLEARWINDOW(mi);
-}
projects / xscreensaver / blobdiff