Provided by: xscreensaver-data-extra_5.15-2ubuntu1_i386 bug


       slidescreen - permute the screen image like an 8-puzzle


       slidescreen  [-display host:display.screen] [-background color] [-grid-
       size pixels] [-ibw pixels] [-increment pixels] [-delay usecs]  [-delay2
       usecs]  [-duration  secs] [-window] [-root] [-install] [-visual visual]


       The slidescreen program takes an image, divides it into a grid, deletes
       a  random  square  of  that  grid,  and then randomly slides one of the
       neighbors of this "hole" into the hole (and repeat.)

       The image that it manipulates will be grabbed from the portion  of  the
       screen underlying the window, or from the system's video input, or from
       a  random  file  on  disk,  as  indicated  by  the   grabDesktopImages,
       grabVideoFrames,  and chooseRandomImages options in the ~/.xscreensaver
       file; see xscreensaver-demo(1) for more details.


       slidescreen accepts the following options:

       -window Draw on a newly-created window.  This is the default.

       -root   Draw on the root window.

               Install a private colormap for the window.

       -visual visual
               Specify which visual to use.  Legal values are the  name  of  a
               visual  class,  or the id number (decimal or hex) of a specific

       -grid-size pixels
               The size of the grid cells.  Default 70 pixels.

       -ibw pixels
               The size of the "gutter" between grid cells.  Default 4 pixel.

       -increment pixels
               How many pixels by which a piece should be moved  when  sliding
               to a new location.  Default 10 pixels.

       -delay microseconds
               How  much  of a delay should be introduced between steps of the
               animation of the motion of each segment.  Default 50000,  which
               is  0.05  seconds.   This  is closely related to the -increment

       -delay2 microseconds
               How much of a delay should be introduced between the end of the
               motion  of  one  segment  and  the  beginning  of the motion of
               another.  Default 1000000, which is one second.

       -duration seconds
               How long to run  before  loading  a  new  image.   Default  120

       -fps    Display the current frame rate and CPU load.


       DISPLAY to get the default host and display number.

               to  get  the  name of a resource file that overrides the global
               resources stored in the RESOURCE_MANAGER property.


       X(1), xscreensaver(1), xscreensaver-demo(1), xscreensaver-getimage(1)


       Copyright © 1992 by Jamie Zawinski.  Permission to use,  copy,  modify,
       distribute,  and  sell  this  software  and  its  documentation for any
       purpose  is  hereby  granted  without  fee,  provided  that  the  above
       copyright  notice  appear  in  all  copies and that both that copyright
       notice and this permission notice appear in  supporting  documentation.
       No  representations are made about the suitability of this software for
       any purpose.  It  is  provided  "as  is"  without  express  or  implied


       Jamie Zawinski <>, 3-dec-92.