From 8fb0ec040c4e82922e2305d0991f8c615b7184d2 Mon Sep 17 00:00:00 2001 From: Moviuro Date: Wed, 6 Dec 2017 20:54:48 +0100 Subject: makemywall: first introduction of the wallpaper generation script This script was inspired by initial work by jstpcs Additional features: * breaks compatibility to have an easier interface and easier code * can either read the entire picture to get the background color (slow) * or pick the color of the top-left pixel (fast, default) * doesn't scale pictures up to avoid "fuzzy" pictures * now has a proper license (BSD-2) --- makemywall | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100755 makemywall diff --git a/makemywall b/makemywall new file mode 100755 index 0000000..71c06e4 --- /dev/null +++ b/makemywall @@ -0,0 +1,77 @@ +#!/bin/sh + +# Copyright 2017 jstpcs +# Copyright 2017 moviuro + +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, this +# list of conditions and the following disclaimer. +# +# 2. Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +set -e + +usage() { + cat << EOH +Usage: $0 [-s] : creates a wallpaper + -s : use a "safer" and slower method to get the background color + $0 -h : displays this help message +Example: $0 coolimage.png 1920 1080 +EOH + exit ${1:-0} +} + +die() { + echo "$1" && exit "${2:-1}" +} + +if [ "$1" = "-h" ]; then + usage +fi + +if [ "$1" = "-s" ]; then + getbg() { + # We get all hexa codes of all pixels in the picture, and pick the most + # frequent one... which should be the background color? + convert "$1" -format %c +dither -depth 5 histogram:info: | + sort -nr | head -1 | grep -Eo '#[A-F0-9]{6}' + } + shift +else + getbg() { + # We get the color of the top-left pixel. + convert "$1" -crop 1x1+0+0 -depth 8 txt: | grep -Eo '#[A-F0-9]{6}' + } +fi + +if [ $# -ne 3 ]; then + usage 1 >&2 +fi + +[ -r "$1" ] || die "File $1 is not readable!" +inpfile="$1" +outfile="$(basename "$inpfile")" +width="$2" +height="$3" +bgcolor="$(getbg "$inpfile")" + +# We use the `-resize ..x..\>` syntax to only shrink pictures. Enlarging is +# asking for trouble (artifacting, etc.) +convert "$inpfile" -gravity center -resize "${width}x${height}>" \ + -background "$bgcolor" -extent "${width}x${height}" \ + "${outfile%.*}-${width}x${height}.${outfile##*.}" -- cgit v1.2.3 From 7a3cd4167801495da4c7f39b6885738c5f3e7529 Mon Sep 17 00:00:00 2001 From: Moviuro Date: Wed, 6 Dec 2017 21:32:05 +0100 Subject: makemywall: new interface We support new ways of reading files that we want to modify/generate: % ./makemywall 1920 1080 myfile1.png myfile2.png % ./makemywall 1920 1080 < mylist.txt % find . -type f -name '*.png' | ./makemywall 1080 1920 --- makemywall | 68 +++++++++++++++++++++++++++++++++++++++++++------------------- 1 file changed, 47 insertions(+), 21 deletions(-) diff --git a/makemywall b/makemywall index 71c06e4..476db5c 100755 --- a/makemywall +++ b/makemywall @@ -28,10 +28,19 @@ set -e usage() { cat << EOH -Usage: $0 [-s] : creates a wallpaper - -s : use a "safer" and slower method to get the background color - $0 -h : displays this help message -Example: $0 coolimage.png 1920 1080 +Generate wallpapers to a specified size, given a base picture + +$0 [-vs] width height [picture [picture [...]]] +$0 -h + +-h : displays this help message +-s : use a "safer" and slower method to get the background color +-v : be verbose (set -x) + +Example: $0 1920 1080 coolimage.png + +The following syntax also works: +find . -type f -name '*.png' | $0 1080 1920 EOH exit ${1:-0} } @@ -40,18 +49,24 @@ die() { echo "$1" && exit "${2:-1}" } -if [ "$1" = "-h" ]; then - usage -fi +while getopts ":hvs" _opt; do + case "$_opt" in + h) usage ;; + s) _slow=1 ;; + v) set -x ;; + *) usage 1 >&2 ;; + esac +done + +shift $((OPTIND-1)) -if [ "$1" = "-s" ]; then +if [ -n "$_slow" ]; then getbg() { # We get all hexa codes of all pixels in the picture, and pick the most # frequent one... which should be the background color? convert "$1" -format %c +dither -depth 5 histogram:info: | sort -nr | head -1 | grep -Eo '#[A-F0-9]{6}' } - shift else getbg() { # We get the color of the top-left pixel. @@ -59,19 +74,30 @@ else } fi -if [ $# -ne 3 ]; then +# We require width & height +# TODO: maybe auto-detect? seems tricky with dual screen +if [ $# -lt 2 ]; then usage 1 >&2 fi +width="$1" +height="$2" +shift 2 -[ -r "$1" ] || die "File $1 is not readable!" -inpfile="$1" -outfile="$(basename "$inpfile")" -width="$2" -height="$3" -bgcolor="$(getbg "$inpfile")" +{ if [ -z "$1" ]; then + # No arguments, we read stdin + cat - +else + for _file in "$@"; do + printf "%s\n" "$_file" + done +fi } | +while IFS= read -r inpfile; do + outfile="$(basename "$inpfile")" + bgcolor="$(getbg "$inpfile")" -# We use the `-resize ..x..\>` syntax to only shrink pictures. Enlarging is -# asking for trouble (artifacting, etc.) -convert "$inpfile" -gravity center -resize "${width}x${height}>" \ - -background "$bgcolor" -extent "${width}x${height}" \ - "${outfile%.*}-${width}x${height}.${outfile##*.}" + # We use the `-resize ..x..\>` syntax to only shrink pictures. Enlarging is + # asking for trouble (artifacting, etc.) + convert "$inpfile" -gravity center -resize "${width}x${height}>" \ + -background "$bgcolor" -extent "${width}x${height}" \ + "${outfile%.*}-${width}x${height}.${outfile##*.}" +done -- cgit v1.2.3 From 6982e0eb662c135fb25d8daebd1f11c45163decf Mon Sep 17 00:00:00 2001 From: Moviuro Date: Wed, 6 Dec 2017 21:39:08 +0100 Subject: makemywall: minor changes (nothing functionnal) --- makemywall | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/makemywall b/makemywall index 476db5c..61bc3ce 100755 --- a/makemywall +++ b/makemywall @@ -26,7 +26,7 @@ set -e -usage() { +usage() { cat << EOH Generate wallpapers to a specified size, given a base picture @@ -88,7 +88,7 @@ shift 2 cat - else for _file in "$@"; do - printf "%s\n" "$_file" + printf '%s\n' "$_file" done fi } | while IFS= read -r inpfile; do -- cgit v1.2.3