Notices

#!/bin/sh
p="/sys/devices/platform/omapdss/overlay2/position"
s="/sys/devices/platform/omapdss/overlay2/output_size"
a=`cat /sys/devices/platform/omapdss/overlay2/output_size`
b=`cat /sys/devices/platform/omapdss/overlay2/position`
xs=${b%%,*}
ys=${b##*,}
xd=${a%%,*}
yd=${a##*,}
echo $xs,$ys $xd,$yd
restore(){
r=`cat /opt/screen_dimensions`
xs=${r%%,*}
yd=${r##*,}
r=${r%,*};r=${r#*,}
xd=${r#*,}
ys=${r%,*}
echo $xs,$ys $xd,$yd
}
scrsz(){
echo $xs,$ys > $p
echo $xd,$yd > $s
}
while [ 1 ];do
setting=$(stty -g)
key=$(dd bs=1 count=1 2> /dev/null)
#stty "$setting"
case $key in
"a")xs=$(expr $xs - 1);;
"s")xs=$(expr $xs + 1);;
"w")ys=$(expr $ys - 1);;
"x")ys=$(expr $ys + 1);;
"d")xd=$(expr $xd - 1);;
"f")xd=$(expr $xd + 1);;
"e")yd=$(expr $yd - 1);;
"c")yd=$(expr $yd + 1);;
"q")echo $xs,$ys $xd,$yd;echo $xs,$ys,$xd,$yd > /opt/screen_dimensions;exit;;
"r")restore;;
esac
scrsz
done