display-tile man page on Mageia

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display-tile(7)			      GGI		       display-tile(7)

NAME
       display-tile : Divide display into tiles similar to a video wall

SYNOPSIS
       display-tile : [ [-usedb] | [-nodb] ]
		      <offset-x>,<offset-y>,<size-x>,<size-y>,<child-target-spec>
		      ...

DESCRIPTION
       Emulates	 one big target, where one or more areas are mapped to differ‐
       ent child visuals.

OPTIONS
       For each tile (i.e. child visual or mapped area), the following must be
       specified:

       offset-x, offset-y
	      coordinates (within the parent visual) of the top-left corner of
	      the child visual

       size-x, size-y
	      width and height of the child visual

       :p`child-target-spec`
	      a target spec.  Since target specs can (and  often  do)  contain
	      colons, it needs to be enclosed in parentheses.

       The following options apply to the whole display-tile:

       -usedb Enables DirectBuffer emulation. This is the default mode.

	      The  contents  of	 each  mapped area is blitted from the Direct‐
	      Buffer into their respective child visuals at regular  intervals
	      or  when	the  visual  is flushed.  DirectBuffer emulation works
	      regardless of whether the child visuals support DirectBuffer  or
	      not.

       -nodb  Disables	DirectBuffer  emulation.  LibGGI primitives are passed
	      to each of the child visuals with	 the  necessary	 clipping  and
	      translation.   Thus,  if a child visual underlying a mapped area
	      supports acceleration, then the operation on that area  will  be
	      accelerated.

FEATURES
       ·   DirectBuffer support depends on the -usedb and -nodb options.

       ·   Accelerated	in  no-DB  mode if the underlying target is, otherwise
	   unaccelerated.

	      Tip: display-tile can be used to emulate DirectBuffer for obsti‐
	      nate  applications that cannot run without it, by specifying one
	      tile which maps the whole screen.

libggi-2.2.x			  2003-04-02		       display-tile(7)
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