kc3-lang/libpng/tests/pngstest

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• Hash : 87c14c52
  Author :
  Date : 2016-05-25T22:41:46
  

  [master] Imported from libpng-1.6.22.tar
  

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• tests/pngstest

• #!/bin/sh
  #
  # Usage:
  #
  #  tests/pngstest gamma alpha
  #
  # Run ./pngstest on the PNG files in $srcdir/contrib/testpngs which have the
  # given gamma and opacity:
  #
  #  gamma: one of; linear, 1.8, sRGB, none.
  #  alpha: one of; opaque, tRNS, alpha, none.  'none' is equivalent to !alpha
  #
  # NOTE: the temporary files pngstest generates have the base name gamma-alpha to
  # avoid issues with make -j
  #
  gamma="$1"
  shift
  alpha="$1"
  shift
  args=
  LC_ALL="C" # fix glob sort order to ASCII:
  for f in "${srcdir}/contrib/testpngs/"*.png
  do
     g=
     case "$f" in
        *-linear[.-]*)
           test "$gamma" = "linear" && g="$f";;
  
        *-sRGB[.-]*)
           test "$gamma" = "sRGB" && g="$f";;
  
        *-1.8[.-]*)
           test "$gamma" = "1.8" && g="$f";;
  
        *)
           test "$gamma" = "none" && g="$f";;
     esac
  
     case "$g" in
        "")
           :;;
  
        *-alpha[-.]*)
           test "$alpha" = "alpha" && args="$args $g";;
  
        *-tRNS[-.]*)
           test "$alpha" = "tRNS" -o "$alpha" = "none" && args="$args $g";;
  
        *)
           test "$alpha" = "opaque" -o "$alpha" = "none" && args="$args $g";;
     esac
  done
  # This only works if the arguments don't contain spaces; they don't.
  exec ./pngstest --tmpfile "${gamma}-${alpha}-" --log ${1+"$@"} $args
  

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