blob: c70456e56956458ab96b31fe57822ee38b3f4642 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
#!/bin/bash
#
# compress-pngs.sh
# Run various compression and optimization utilities on one or more PNGs
#
# Wireshark - Network traffic analyzer
# By Gerald Combs <gerald@wireshark.org>
# Copyright 2013 Gerald Combs
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
FILE_LIST_CMD="find . -type f -name \"*.png\""
if [ -n "$1" ] ; then
FILE_LIST_CMD="echo $1"
fi
# Other utilities:
# PNGOUT (http://advsys.net/ken/utils.htm). Closed source.
# pngquant (https://pngquant.org/). Lossy.
JOBS=8
export FILE_LIST_CMD
(
echo -n "PNG_FILES ="
bash -c "$FILE_LIST_CMD" | while read PNG_FILE ; do
echo -e " \\"
echo -e -n "\t${PNG_FILE}"
done
cat <<"FIN"
all: $(PNG_FILES)
$(PNG_FILES): FORCE
@echo Compressing $@
@hash optipng 2>/dev/null && optipng -o3 -quiet "$@"
@hash advpng 2>/dev/null && advpng -z -4 "$@"
@hash advdef 2>/dev/null && advdef -z -4 "$@"
@hash pngcrush 2>/dev/null && pngcrush -q -ow -brute -reduce -noforce "$@" pngout.$$$$.png
FORCE:
FIN
) | make -j $JOBS -f -
|
