From http://www.jwz.org/xscreensaver/xscreensaver-5.37.tar.gz

[xscreensaver] / hacks / glx / dangerball.c

diff --git a/hacks/glx/dangerball.c b/hacks/glx/dangerball.c
index a44a55d703ac7beb86b58d589865fcd9abab198c..ec39fbe34f0b59dfb9ea279453137c6481faae55 100644 (file)
--- a/hacks/glx/dangerball.c
+++ b/hacks/glx/dangerball.c
@@ -1,4 +1,4 @@
-/* dangerball, Copyright (c) 2001-2014 Jamie Zawinski <jwz@jwz.org>
+/* dangerball, Copyright (c) 2001-2017 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
@@ -13,6 +13,7 @@
                        "*count:        30          \n" \
                        "*showFPS:      False       \n" \
                        "*wireframe:    False       \n" \
+                       "*suppressRotationAnimation: True\n" \
 
 # define refresh_ball 0
 # define release_ball 0
@@ -101,6 +102,14 @@ reshape_ball (ModeInfo *mi, int width, int height)
              0.0, 0.0, 0.0,
              0.0, 1.0, 0.0);
 
+# ifdef HAVE_MOBILE    /* Keep it the same relative size when rotated. */
+  {
+    int o = (int) current_device_rotation();
+    if (o != 0 && o != 180 && o != -180)
+      glScalef (1/h, 1/h, 1/h);
+  }
+# endif
+
   glClear(GL_COLOR_BUFFER_BIT);
 }
 
@@ -195,15 +204,7 @@ init_ball (ModeInfo *mi)
   ball_configuration *bp;
   int wire = MI_IS_WIREFRAME(mi);
 
-  if (!bps) {
-    bps = (ball_configuration *)
-      calloc (MI_NUM_SCREENS(mi), sizeof (ball_configuration));
-    if (!bps) {
-      fprintf(stderr, "%s: out of memory\n", progname);
-      exit(1);
-    }
-  }
-
+  MI_INIT (mi, bps, 0);
   bp = &bps[MI_SCREEN(mi)];
 
   bp->glx_context = init_GL(mi);