slidescreen(6x)


NAME

   slidescreen - permute the screen image like an 8-puzzle

SYNOPSIS

   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]
   [-fps]

DESCRIPTION

   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.

OPTIONS

   slidescreen accepts the following options:

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

   -root   Draw on the root window.

   -install
           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
           visual.

   -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
           parameter.

   -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
           seconds.

   -fps    Display the current frame rate and CPU load.

ENVIRONMENT

   DISPLAY to get the default host and display number.

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

SEE ALSO

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

COPYRIGHT

   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
   warranty.

AUTHOR

   Jamie Zawinski <jwz@jwz.org>, 3-dec-92.





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