From http://www.jwz.org/xscreensaver/xscreensaver-5.35.tar.gz

[xscreensaver] / hacks / deluxe.c

diff --git a/hacks/deluxe.c b/hacks/deluxe.c
index 27ba04843921e9173582e17e64ca1e23bc19f203..3db698c9ddbdf3ea98dca8380111c1b48488f183 100644 (file)
--- a/hacks/deluxe.c
+++ b/hacks/deluxe.c
@@ -1,4 +1,4 @@
-/* xscreensaver, Copyright (c) 1999-2012 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1999-2013 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
@@ -62,7 +62,14 @@ draw_star (struct state *st, Drawable w, struct throbber *t)
   XPoint points[11];
   int x = t->x;
   int y = t->y;
-  int s = t->size / 0.383;  /* trial and error, I forget how to derive this */
+
+  /*
+    The following constant is really:
+      sqrt(5 - sqrt(5)) / sqrt(25 - 11 * sqrt(5))
+
+    Reference: http://mathworld.wolfram.com/Pentagram.html
+  */
+  int s = t->size * 2.6180339887498985;
   int s2 = t->size;
   double c = M_PI * 2;
   double o = -M_PI / 2;
@@ -166,7 +173,7 @@ make_throbber (struct state *st, Drawable d, int w, int h, unsigned long pixel)
   if (t->speed > 0) t->speed = -t->speed;
 
   flags = GCForeground;
-# ifndef HAVE_COCOA
+# ifndef HAVE_JWXYZ
   if (st->transparent_p)
     {
       gcv.foreground = ~0L;
@@ -174,7 +181,7 @@ make_throbber (struct state *st, Drawable d, int w, int h, unsigned long pixel)
       flags |= GCPlaneMask;
     }
   else
-# endif /* !HAVE_COCOA */
+# endif /* !HAVE_JWXYZ */
     {
       gcv.foreground = pixel;
     }
@@ -186,7 +193,7 @@ make_throbber (struct state *st, Drawable d, int w, int h, unsigned long pixel)
   flags |= (GCLineWidth | GCCapStyle | GCJoinStyle);
   t->gc = XCreateGC (st->dpy, d, flags, &gcv);
 
-# ifdef HAVE_COCOA
+# ifdef HAVE_JWXYZ
   if (st->transparent_p)
     {
       /* give a non-opaque alpha to the color */
@@ -198,7 +205,7 @@ make_throbber (struct state *st, Drawable d, int w, int h, unsigned long pixel)
       jwxyz_XSetAlphaAllowed (st->dpy, t->gc, True);
       XSetForeground (st->dpy, t->gc, pixel);
     }
-# endif /* HAVE_COCOA */
+# endif /* HAVE_JWXYZ */
 
   switch (random() % 11) {
   case 0: case 1: case 2: case 3: t->draw = draw_star; break;
@@ -268,7 +275,7 @@ deluxe_init (Display *dpy, Window window)
   st->dbeclear_p = get_boolean_resource (st->dpy, "useDBEClear", "Boolean");
 #endif
 
-# ifdef HAVE_COCOA     /* Don't second-guess Quartz's double-buffering */
+# ifdef HAVE_JWXYZ     /* Don't second-guess Quartz's double-buffering */
   st->dbuf = False;
 # endif
 
@@ -285,7 +292,7 @@ deluxe_init (Display *dpy, Window window)
       st->colors[0].pixel = get_pixel_resource(st->dpy, st->xgwa.colormap,
                                            "foreground", "Foreground");
     }
-#ifndef HAVE_COCOA
+#ifndef HAVE_JWXYZ
   else if (st->transparent_p)
     {
       st->nplanes = get_integer_resource (st->dpy, "planes", "Planes");
@@ -306,13 +313,13 @@ deluxe_init (Display *dpy, Window window)
          goto COLOR;
        }
     }
-#endif /* !HAVE_COCOA */
+#endif /* !HAVE_JWXYZ */
   else
     {
-#ifndef HAVE_COCOA
+#ifndef HAVE_JWXYZ
     COLOR:
 #endif
-      make_random_colormap (st->dpy, st->xgwa.visual, st->xgwa.colormap,
+      make_random_colormap (st->xgwa.screen, st->xgwa.visual, st->xgwa.colormap,
                             st->colors, &st->ncolors, True, True, 0, True);
       if (st->ncolors < 2)
         goto MONO;
@@ -431,6 +438,9 @@ static const char *deluxe_defaults [] = {
   "*useDBE:            True",
   "*useDBEClear:       True",
 #endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
+#ifdef HAVE_MOBILE
+  "*ignoreRotation:     True",
+#endif
   0
 };