2 # Copyright (C) 2022-2023 Sergey Matveev <stargrave@stargrave.org>
6 pagesize=${PAGESIZE:-100}
7 ordering=${ORDERING:-Om}
21 [[ -r ${1}-ec0.ppm ]] || return 0
22 mv ${1}-ec0.ppm $1.ppm
26 [[ -z $style ]] || style="<link rel=\"stylesheet\" type=\"text/css\" href=\"$style\">"
29 imgs=((*.jxl|*.webp~*.preview.webp)($ordering))
30 pages=$(( ${#imgs} / $pagesize ))
31 [[ $(( $pages * $pagesize )) -lt ${#imgs} ]] && pages=$(( $pages + 1 ))
33 for (( i=1 ; i <= ${#imgs} ; i++ )) {
37 local p=$(( ( $i / $pagesize ) + 1 ))
43 <title>Image ${i}/${#imgs}: $img</title>
44 <link href="1.page.html" rel="start" title="home">
45 <link href="${p}.page.html" rel="up" title="page">
48 echo "<link href=\"$(( $i - 1 )).img.html\" rel=\"prev\" title=\"previous\">" >> $dst
49 [[ $i -eq ${#imgs} ]] ||
50 echo "<link href=\"$(( $i + 1 )).img.html\" rel=\"next\" title=\"next\">" >> $dst
56 echo "<a href=\"$(( $i - 1 )).img.html\"><<<</a>" >> $dst
57 echo "<a href=\"${p}.page.html\">^^^</a>" >> $dst
58 [[ $i -eq ${#imgs} ]] ||
59 echo "<a href=\"$(( $i + 1 )).img.html\">>>></a>" >> $dst
60 echo "<hr/><img alt=\"$img\" src=\"$img\"/>" >> $dst
61 [[ -r ${img}.txt ]] && {
62 echo "<hr/><pre>" >> $dst
63 cat ${img}.txt >> $dst
67 if [[ $img:e = jxl ]] ; then
69 jxlinfo $img > $img.info
72 echo "Alternative formats:" >> $dst
73 if grep -q "JPEG bitstream reconstruction" $img.info ; then
74 [[ -r $img.jpg ]] || {
76 touch -r $img $img.jpg
78 echo "<a href=\"$img.jpg\">JPEG</a>" >> $dst
80 [[ -r $img.png ]] || {
82 pamtopng < $img.ppm > $img.png
84 pngcrush -rem alla -rem allb -z 2 $img.png $img.png.png
85 mv $img.png.png $img.png
87 touch -r $img $img.png
89 echo "<a href=\"$img.png\">PNG</a>" >> $dst
92 [[ -r $img.preview.webp ]] || djxl2ppm $img
97 [[ -r $img.preview.webp ]] || dwebp $img -ppm -o $img.ppm
100 exiftool -escapeHTML -htmlFormat -groupHeadings \
101 --${=${(j/ --/)exifTagsOmit}} $img >> $dst
102 [[ -r $img.ppm ]] && {
103 pnmscale -w 100 < $img.ppm > $img.ppm.ppm
104 mv $img.ppm.ppm $img.ppm
105 cwebp -pass 10 -alpha_filter best -m 6 -mt -o $img.preview.webp $img.ppm
107 touch -r $img $img.preview.webp
109 echo "</body></html>" >> $dst
113 for (( p=1 ; p <= $pages ; p++ )) {
114 local dst=$p.page.html
120 <title>Page ${p}/$pages</title>
121 <link href="1.page.html" rel="start" title="home">
124 echo "<link href=\"$(( $p - 1 )).page.html\" rel=\"prev\" title=\"previous\">" >> $dst
125 [[ $p -eq $pages ]] ||
126 echo "<link href=\"$(( $p + 1 )).page.html\" rel=\"next\" title=\"next\">" >> $dst
131 [[ $p -eq 1 ]] && [[ -r .txt ]] && {
134 echo "</pre>" >> $dst
137 echo "<a href=\"$(( $p - 1 )).page.html\"><<<</a>" >> $dst
138 [[ $p -eq $pages ]] ||
139 echo "<a href=\"$(( $p + 1 )).page.html\">>>></a>" >> $dst
140 echo "| <a href=\"1.page.html\">home</a>" >> $dst
141 echo "| <a href=\"${pages}.page.html\">end</a>" >> $dst
143 for (( i=1 ; i <= $pagesize ; i++ )) {
144 img=$(( ( $p - 1 ) * $pagesize + $i ))
145 [[ $img -le ${#imgs} ]] || break
146 echo "<a href=\"${img}.img.html\">" >> $dst
149 [[ -r ${imgs[$img]}.txt ]] && {
150 alt=`cat ${imgs[$img]}.txt`
151 title="title=\"$alt\""
153 echo "<img alt=\"$alt\" $title src=\"${imgs[$img]}.preview.webp\"/></a>" >> $dst
155 echo "</body></html>" >> $dst