scripts/auxiliar/make-regtest-pngs.sh

   1 #!/bin/sh
   2
   3 #  Make PNG files from regtests
   4 #
   5 #  Usage:  ./make-regtest-pngs.sh -j CPUs -o/-n
   6 #
   7 #    where -j specifies the number of parallel processes to run
   8 #    (normally CPUs+1).  e.g.:
   9 #
  10 #    ./make-regtest-pngs.sh -j9
  11 #
  12 #   -o means build an old regtest set - the PNGs go in the old-regtest-results
  13 #   directory
  14 #
  15 #   -n means build a new regtest set - the PNGs go in the new-regtest-results
  16 #   directory
  17 #
  18 #   -p uses PDF and the poppler library via pdftocairo for generating bitmaps,
  19 #   simulating the output for Evince and other previewers using poppler.
  20 #   pdftocairo may be contained in the poppler-utils package.
  21 #
  22 #   -r can be used for specifying a rendering resolution.  This
  23 #   defaults to 101 for poppler and 300 for Ghostscript from PDF.
  24 #
  25 #   -g uses Ghostscript for rendering a bitmap version from the PDF,
  26 #   simulating the output from printing PDF files on a GNU system, so
  27 #   use a resolution appropriate for print.  Antialiasing is not enabled.
  28 #
  29 #   -d changes the Ghostscript device used for creating PNG files
  30 #   (usually png16m, but with -g you might prefer fewer colors for size
  31 #   reasons, like png16).
  32
  33 cpu_count=${CPU_COUNT:-1}
  34 backend_opt='--png ${resolution:+=-dresolution=$resolution} ${gsdevice:+=-dpixmap-format=$gsdevice}'
  35 resolution=
  36 gsdevice=
  37
  38 png_generate()
  39 {
  40     :
  41 }
  42
  43 while getopts "j:onpr:g" opts; do
  44     case $opts in j)
  45             cpu_count=$OPTARG;;
  46
  47         o)
  48             file_loc="old-regtest-results";;
  49
  50         p)
  51             backend_opt="--pdf"
  52             png_generate()
  53             {
  54                 for i
  55                 do pdftocairo -png -r ${resolution:-101} -q "$i" &&
  56                     rm "$i"
  57                 done
  58             };;
  59
  60         n)
  61             file_loc="new-regtest-results"
  62             do_compare="y";;
  63
  64         r)
  65             resolution=$OPTARG;;
  66         g)
  67             backend_opt="--pdf"
  68             png_generate()
  69             {
  70                 for i
  71                 do
  72                     gs -sDEVICE=${gsdevice:-png16m} -q -dNOPAUSE \
  73                         -r${resolution:-300} -dNOPLATFONTS \
  74                         -dTextAlphaBits=1 -dGraphicsAlphaBits=1 \
  75                         -sOutputFile="${i%.pdf}-%d.png" "$i" -c quit &&
  76                     rm "$i"
  77                 done
  78             };;
  79     esac
  80 done
  81
  82 if [ -z "$file_loc" ]; then
  83     echo "Must specify old (-o) or new (-n) regtest PNG creation on command line"
  84     exit 1
  85 fi
  86
  87 rm -rf $LILYPOND_BUILD_DIR/out-png-check/$file_loc
  88 mkdir -p $LILYPOND_BUILD_DIR/out-png-check/$file_loc
  89 cd $LILYPOND_BUILD_DIR/out-png-check/$file_loc
  90 ls $LILYPOND_GIT/input/regression/*.ly > dir.txt
  91 $LILYPOND_BUILD_DIR/out/bin/lilypond $(eval echo $backend_opt) --relocate \
  92     -dinclude-settings=$LILYPOND_GIT/scripts/auxiliar/NoTagline.ly \
  93     -djob-count=$cpu_count -dread-file-list "dir.txt"
  94 png_generate *.pdf
  95 rm -rf dir.txt
  96 rm -rf *.log
  97
  98 if [ -n "$do_compare" ]; then
  99     cd ..
 100     rm -rf regtest-diffs
 101     mkdir -p regtest-diffs
 102     diff_count=0
 103     for filename in new-regtest-results/*.png; do
 104         trimFile=$(basename $filename)
 105         if [ -e old-regtest-results/$trimFile ]; then
 106             convert new-regtest-results/$trimFile -level 50%  NewTest.png
 107             convert old-regtest-results/$trimFile -level 50%  OldTest.png
 108             difference=$(compare -metric AE NewTest.png OldTest.png null: 2>&1 )
 109             if [ $? -gt 0 ];then
 110                 difference=9999
 111             fi
 112             if [ $difference -gt 1 ];then
 113                 echo $trimFile": "$difference" differences"
 114                 compare -dissimilarity-threshold 1 \
 115                     new-regtest-results/$trimFile \
 116                     old-regtest-results/$trimFile  regtest-diffs/$trimFile
 117                 convert regtest-diffs/$trimFile -trim regtest-diffs/$trimFile
 118                 diff_count=$(($diff_count+1))
 119             fi
 120         else
 121             echo "old-regtest-results/"$trimFile" does not exist"
 122         fi
 123     done
 124     rm -rf NewTest.png
 125     rm -rf OldTest.png
 126     echo $diff_count "differences found."
 127 fi