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#!/bin/bash
# scrotty — Framebuffer screenshot program
#
# Copyright © 2014 Mattias Andrée (m@maandree.se)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
f=0
while [ -e /dev/fb$f ]; do
pathname=fb$f.png
if [ -e $pathname ]; then
i=2
while [ -e $pathname.$i ]; do
(( i++ ))
done
pathname=$pathname.$i
fi
(
echo P3
cat /sys/class/graphics/fb$f/virtual_size | sed -e 's/,/ /'
echo 255
(echo 'ibase=16;'; cat /dev/fb$f | od -t x4 -v | cut -d ' ' -f 1 --complement |
sed -e 's/\(..\)\(..\)\(..\)\(..\)\( \|$\)/\2 \3 \4 /g' |
sed -e 's/ /\n/g' | sed -e '/^$/d' -e 'y/abcedf/ABCEDF/') | bc
) | convert /dev/stdin $pathname
(( f++ ))
done
exit 0
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