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

[xscreensaver] / hacks / glx / moebius.c

diff --git a/hacks/glx/moebius.c b/hacks/glx/moebius.c
index feb1a488233c2be68ecf5b40925db43589119329..8c92ff7f073844886c58459ccb657752de1efc8c 100644 (file)
--- a/hacks/glx/moebius.c
+++ b/hacks/glx/moebius.c
@@ -81,14 +81,15 @@ static const char sccsid[] = "@(#)moebius.c 5.01 2001/03/01 xlockmore";
 # define MODE_moebius
 # define refresh_moebius 0
 # define DEFAULTS                      "*delay:                20000   \n"                     \
-                                                       "*showFPS:      False   \n"
+                                                       "*showFPS:      False   \n"                     \
+                                                       "*suppressRotationAnimation: True\n" \
 
 # include "xlockmore.h"                /* from the xscreensaver distribution */
 #else /* !STANDALONE */
 # include "xlock.h"            /* from the xlockmore distribution */
 #endif /* !STANDALONE */
 
-#ifdef HAVE_COCOA
+#ifdef HAVE_JWXYZ
 # include "jwxyz.h"
 #else
 # include <X11/Xlib.h>
@@ -730,6 +731,7 @@ draw_moebius (ModeInfo * mi)
 
        glPushMatrix();
 
+
        glTranslatef(0.0, 0.0, -10.0);
 
     gltrackball_rotate (mp->trackball);
@@ -740,6 +742,18 @@ draw_moebius (ModeInfo * mi)
                glScalef(Scale4Iconic * mp->WindH / mp->WindW, Scale4Iconic, Scale4Iconic);
        }
 
+# ifdef HAVE_MOBILE    /* Keep it the same relative size when rotated. */
+    {
+      GLfloat h = MI_HEIGHT(mi) / (GLfloat) MI_WIDTH(mi);
+      int o = (int) current_device_rotation();
+      if (o != 0 && o != 180 && o != -180) {
+        glScalef (1/h, h, 1);  /* #### not quite right */
+        h = 1.7;
+        glScalef (h, h, h);
+      }
+    }
+# endif
+
     {
       double x, y, z;
       get_rotation (mp->rot, &x, &y, &z, !mp->button_down_p);