misc/tools/cached-converter.sh

   1 #!/bin/sh
   2
   3 set -e
   4
   5 : ${CACHEDIR:=$HOME/.xonotic-cached-converter}
   6 : ${do_jpeg:=true}
   7 : ${jpeg_qual_rgb:=95}
   8 : ${jpeg_qual_a:=99}
   9 : ${do_dds:=true}
  10 : ${dds_tool:=compressonator-dxtc}
  11 : ${do_ogg:=false}
  12 : ${ogg_qual:=1}
  13 : ${del_src:=false}
  14
  15 me=$0
  16 case "$me" in
  17         */*)
  18                 meprefix=${me%/*}/
  19                 ;;
  20         *)
  21                 meprefix=
  22                 ;;
  23 esac
  24
  25 tmpdir=`mktemp -d -t cached-converter.XXXXXX`
  26 trap 'exit 1' INT
  27 trap 'rm -rf "$tmpdir"' EXIT
  28
  29 cached()
  30 {
  31         flag=$1; shift
  32         method=$1; shift
  33         infile1=$1; shift
  34         infile2=$1; shift
  35         outfile1=$1; shift
  36         outfile2=$1; shift
  37         if ! $flag; then
  38                 return 0
  39         fi
  40         if [ x"$infile1" = x"$outfile1" ]; then
  41                 keep=true
  42         fi
  43         options=`echo "$*" | git hash-object --stdin`
  44         sum=`git hash-object "$infile1"`
  45         if [ -n "$infile2" ]; then
  46                 sum=$sum`git hash-object "$infile2"`
  47         fi
  48         mkdir -p "$CACHEDIR/$method-$options"
  49         name1="$CACHEDIR/$method-$options/$sum-1.${outfile1##*.}"
  50         [ -z "$outfile2" ] || name2="$CACHEDIR/$method-$options/$sum-2.${outfile2##*.}"
  51         tempfile1="${name1%/*}/new-${name1##*/}"
  52         [ -z "$outfile2" ] || tempfile2="${name2%/*}/new-${name2##*/}"
  53         if [ -f "$name1" ] && { [ -z "$outfile2" ] || [ -f "$name2" ]; }; then
  54                 case "$outfile1" in */*) mkdir -p "${outfile1%/*}"; esac && { ln "$name1" "$outfile1" 2>/dev/null || cp "$name1" "$outfile1"; }
  55                 [ -z "$outfile2" ] || { case "$outfile2" in */*) mkdir -p "${outfile2%/*}"; esac && { ln "$name2" "$outfile2" 2>/dev/null || cp "$name2" "$outfile2"; }; }
  56                 conv=true
  57         elif "$method" "$infile1" "$infile2" "$tempfile1" "$tempfile2" "$@"; then
  58                 mv "$tempfile1" "$name1"
  59                 [ -z "$outfile2" ] || mv "$tempfile2" "$name2"
  60                 case "$outfile1" in */*) mkdir -p "${outfile1%/*}"; esac && { ln "$name1" "$outfile1" 2>/dev/null || cp "$name1" "$outfile1"; }
  61                 [ -z "$outfile2" ] || { case "$outfile2" in */*) mkdir -p "${outfile2%/*}"; esac && { ln "$name2" "$outfile2" 2>/dev/null || cp "$name2" "$outfile2"; }; }
  62                 conv=true
  63         else
  64                 rm -f "$tempfile1"
  65                 rm -f "$tempfile2"
  66                 exit 1
  67         fi
  68 }
  69
  70 reduce_jpeg2_dds()
  71 {
  72         i=$1; shift
  73         ia=$1; shift
  74         o=$1; shift; shift
  75         convert "$i" "$ia" -compose CopyOpacity -composite "$tmpdir/x.tga" && \
  76         "$meprefix"compress-texture "$dds_tool" dxt5 "$tmpdir/x.tga" "$o" $1
  77 }
  78
  79 reduce_jpeg2_jpeg2()
  80 {
  81         i=$1; shift
  82         ia=$1; shift
  83         o=$1; shift
  84         oa=$1; shift
  85         cp "$i" "$o" && jpegoptim --strip-all -m"$1" "$o" && \
  86         cp "$ia" "$oa" && jpegoptim --strip-all -m"$2" "$oa"
  87 }
  88
  89 reduce_jpeg_jpeg()
  90 {
  91         i=$1; shift; shift
  92         o=$1; shift; shift
  93         cp "$i" "$o" && jpegoptim --strip-all -m"$1" "$o"
  94 }
  95
  96 reduce_ogg()
  97 {
  98         i=$1; shift; shift
  99         o=$1; shift; shift
 100         oggdec -o "$tmpdir/x.wav" "$i" && \
 101         oggenc -q"$1" -o "$o" "$tmpdir/x.wav"
 102 }
 103
 104 reduce_rgba_dds()
 105 {
 106         i=$1; shift; shift
 107         o=$1; shift; shift
 108         convert "$i" "$tmpdir/x.tga" && \
 109         "$meprefix"compress-texture "$dds_tool" dxt5 "$tmpdir/x.tga" "$o" $1
 110 }
 111
 112 reduce_rgba_jpeg2()
 113 {
 114         i=$1; shift; shift
 115         o=$1; shift
 116         oa=$1; shift
 117         convert "$i" -alpha extract -quality 100 "$o" && \
 118         convert "$i" -alpha off     -quality 100 "$oa" && \
 119         jpegoptim --strip-all -m"$1" "$o" && \
 120         jpegoptim --strip-all -m"$2" "$oa"
 121 }
 122
 123 reduce_rgb_dds()
 124 {
 125         i=$1; shift; shift
 126         o=$1; shift; shift
 127         convert "$i" "$tmpdir/x.tga" && \
 128         "$meprefix"compress-texture "$dds_tool" dxt1 "$tmpdir/x.tga" "$o" $1
 129 }
 130
 131 reduce_rgb_jpeg()
 132 {
 133         i=$1; shift; shift
 134         o=$1; shift; shift
 135         convert "$i" "$o" && \
 136         jpegoptim --strip-all -m"$1" "$o"
 137 }
 138
 139 has_alpha()
 140 {
 141         i=$1; shift; shift
 142         o=$1; shift; shift
 143         if convert "$F" -depth 16 RGBA:- | perl -e 'while(read STDIN, $_, 8) { substr($_, 6, 2) eq "\xFF\xFF" or exit 1; } exit 0;'; then
 144                 # no alpha
 145                 : > "$o"
 146         else
 147                 # has alpha
 148                 echo yes > "$o"
 149         fi
 150 }
 151
 152 for F in "$@"; do
 153         echo >&2 "Handling $F..."
 154         conv=false
 155         keep=false
 156         case "$F" in
 157                 *_alpha.jpg)
 158                         # handle in *.jpg case
 159
 160                         # they always got converted, I assume
 161                         conv=true
 162                         keep=$do_jpeg
 163                         ;;
 164                 *.jpg)
 165                         if [ -f "${F%.jpg}_alpha.jpg" ]; then
 166                                 cached "$do_dds"  reduce_jpeg2_dds   "$F" "${F%.*}_alpha.jpg" "dds/${F%.*}.dds" ""                  "$dds_flags"
 167                                 cached "$do_jpeg" reduce_jpeg2_jpeg2 "$F" "${F%.*}_alpha.jpg" "$F"              "${F%.*}_alpha.jpg" "$jpeg_qual_rgb" "$jpeg_qual_a"
 168                         else
 169                                 cached "$do_dds"  reduce_rgb_dds     "$F" ""                  "dds/${F%.*}.dds" ""                  "$dds_flags"
 170                                 cached "$do_jpeg" reduce_jpeg_jpeg   "$F" ""                  "$F"              ""                  "$jpeg_qual_rgb"
 171                         fi
 172                         ;;
 173                 *.png|*.tga)
 174                         cached true has_alpha "$F" "" "$F.hasalpha" ""
 175                         conv=false
 176                         if [ -s "$F.hasalpha" ]; then
 177                                 cached "$do_dds"  reduce_rgba_dds    "$F" ""                  "dds/${F%.*}.dds" ""                  "$dds_flags"
 178                                 cached "$do_jpeg" reduce_rgba_jpeg2  "$F" ""                  "${F%.*}.jpg"     "${F%.*}_alpha.jpg" "$jpeg_qual_rgb" "$jpeg_qual_a"
 179                                 rm -f "$F" # TGA becomes useless after JPEGging
 180                         else
 181                                 cached "$do_dds"  reduce_rgb_dds     "$F" ""                  "dds/${F%.*}.dds" ""                  "$dds_flags"
 182                                 cached "$do_jpeg" reduce_rgb_jpeg    "$F" ""                  "${F%.*}.jpg"     ""                  "$jpeg_qual_rgb"
 183                                 rm -f "$F" # TGA becomes useless after JPEGging
 184                         fi
 185                         rm -f "$F.hasalpha"
 186                         ;;
 187                 *.ogg)
 188                         cached "$do_ogg" reduce_ogg "$F" "" "$F" "" "$ogg_qual"
 189                         ;;
 190         esac
 191         if $del_src; then
 192                 if $conv; then
 193                         if ! $keep; then
 194                                 rm -f "$F"
 195                         fi
 196                 fi
 197         fi
 198 done