http://ftp.ksu.edu.tw/FTP/FreeBSD/distfiles/xscreensaver-4.23.tar.gz

[xscreensaver] / hacks / glx / gltrackball.c

diff --git a/hacks/glx/gltrackball.c b/hacks/glx/gltrackball.c
index 42b4c296b213efbe10ff9171433048c6f29f4ee1..712288fc6eb7d250bd899e5fccfdfe96d636a527 100644 (file)
--- a/hacks/glx/gltrackball.c
+++ b/hacks/glx/gltrackball.c
@@ -107,3 +107,11 @@ gltrackball_mousewheel (trackball_state *ts,
   else
     gltrackball_track (ts, 50, 50*move, 100, 100);
 }
+
+void
+gltrackball_get_quaternion (trackball_state *ts, float q[4])
+{
+  int i;
+  for (i=0; i<4; i++)
+    q[i] = ts->q[i];
+}