--- /dev/null
+#!/bin/bash
+# $Id$
+# This script recompressess .png files using pngcrush and
+# optipng to get the smallest images. All recompression is
+# looseless.
+#
+# NOTE: files must be in same directory as the script is run from!
+# Examples:
+# ~/supertux/tools/image_recompress.sh *.png
+# (good)
+# ~/supertux/tools/image_recompress.sh */*.png
+# (bad, does not work)
+#
+# TODO:
+# * Make it work recursivly
+# * Make it work on files not in current directory
+
+if [ -z "$1" ] || [ "$1" == "--help" ]; then
+ echo "Usage: $(basename $0) files..."
+ echo -e '\e[1mNOTE: Files must be in same directory as the script is run from!\e[0m'
+ echo 'Examples:'
+ echo " $0 *.png"
+ echo ' this works'
+ echo " $0 */*.png"
+ echo ' this does NOT work'
+ exit 1
+fi
+
+# Check that the tools we use exist:
+if ! type pngcrush > /dev/null 2>&1; then
+ echo "Can't find pngcrush!"
+ echo "This script depends on the pngcrush tool to be in PATH."
+ echo "Please install it or, if it is already installed add the"
+ echo "directory it is in to PATH and try again."
+ exit 1
+fi
+if ! type optipng > /dev/null 2>&1; then
+ echo "Can't find optipng!"
+ echo "This script depends on the optipng tool to be in PATH."
+ echo "Please install it or, if it is already installed add the"
+ echo "directory it is in to PATH and try again."
+ exit 1
+fi
+
+
+echo -e "Please wait, this can take a \e[1mlong\e[0m time."
+
+echo -e "\n\n\n\e[1mPass 1: pngcrush\e[0m\n\n\n"
+for image in "$@"; do
+ echo -e "\e[1m$image\e[0m : $(du -b $image | awk '{print $1}')"
+ newsize="$(pngcrush -reduce -brute -d c "$image" | grep -E "filesize reduction")"
+ if [[ $newsize =~ ".+reduction.+" ]]; then
+ echo "$newsize"
+ cp -v "c/$image" "$image"
+ fi
+ echo
+done
+rm -rvf c
+
+echo -e "\n\n\n\e[1mPass 2: optipng\e[0m\n\n\n"
+for image in "$@"; do
+ echo -e "\e[1m$image\e[0m : $(du -b $image | awk '{print $1}')"
+ newsize="$(optipng -i 0 -o 7 -dir out "$image" | grep -E '^Output file size')"
+ echo "$newsize"
+ if [[ $newsize =~ ".+decrease.+" ]]; then
+ cp -v "out/$image" "$image"
+ else
+ rm -v "out/$image"
+ fi
+ echo
+done
+rm -rvf out
projects / supertux.git / commitdiff
