2019-09-11 04:11:40 +02:00
|
|
|
#!/bin/sh
|
|
|
|
|
# env
|
2020-05-03 16:47:27 +02:00
|
|
|
# Written in 2019-2020 by Lucas
|
2019-09-11 04:11:40 +02:00
|
|
|
# CC0 1.0 Universal/Public domain - No rights reserved
|
|
|
|
|
#
|
|
|
|
|
# To the extent possible under law, the author(s) have dedicated all
|
|
|
|
|
# copyright and related and neighboring rights to this software to the
|
|
|
|
|
# public domain worldwide. This software is distributed without any
|
|
|
|
|
# warranty. You should have received a copy of the CC0 Public Domain
|
|
|
|
|
# Dedication along with this software. If not, see
|
|
|
|
|
# <http://creativecommons.org/publicdomain/zero/1.0/>.
|
|
|
|
|
|
2020-08-01 22:45:50 +02:00
|
|
|
: ${CANVAS_BGCOLOR:="#0c0700"}
|
2019-09-11 04:11:40 +02:00
|
|
|
: ${CANVAS_HEIGHT:=768}
|
|
|
|
|
: ${CANVAS_WIDTH:=1366}
|
|
|
|
|
: ${IMAGE_HEIGHT:=500}
|
|
|
|
|
: ${IMAGE_WIDTH:=500}
|
|
|
|
|
|
2020-05-03 16:47:27 +02:00
|
|
|
pos_x=$((3 * CANVAS_WIDTH / 4 - IMAGE_WIDTH / 2))
|
|
|
|
|
pos_y=$((CANVAS_HEIGHT / 2 - IMAGE_HEIGHT / 2))
|
2019-09-11 04:11:40 +02:00
|
|
|
|
|
|
|
|
if ! tmpfile=$(mktemp -t bg.XXXXXXXXXX); then
|
2020-05-03 16:47:27 +02:00
|
|
|
printf "%s: can't create temporary file\n" "${0##*/}" >&2
|
2019-09-11 04:11:40 +02:00
|
|
|
exit 1
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
trap 'rm -f "$tmpfile"' EXIT INT QUIT TERM
|
|
|
|
|
|
2020-05-03 16:47:27 +02:00
|
|
|
pngtopam -alphapam FreeHugsBSD.png |
|
|
|
|
|
pamscale -width "$IMAGE_WIDTH" -height "$IMAGE_HEIGHT" >"$tmpfile"
|
|
|
|
|
ppmmake "$CANVAS_BGCOLOR" "$CANVAS_WIDTH" "$CANVAS_HEIGHT" |
|
|
|
|
|
pamcomp -xoff "$pos_x" -yoff "$pos_y" "$tmpfile" |
|
|
|
|
|
pamtopng >FreeHugsBSD-bg.png
|
