#!/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

exec ./pngstest --tmpfile "${gamma}-${alpha}-" --log ${1+"$@"} `

   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 "$alpha" = "alpha" && echo "$g";;

         *-tRNS[-.]*)

            test "$alpha" = "tRNS" -o "$alpha" = "none" && echo "$g";;

         *)

            test "$alpha" = "opaque" -o "$alpha" = "none" && echo "$g";;

      esac

   done

`