#!/bin/sh
#
# Run a sequence of gamma tests quietly
err=0
for gamma in threshold transform sbit 16-to-8
do
   opts=
   test "$gamma" = threshold || opts="$opts --nogamma-threshold"
   test "$gamma" = transform || opts="$opts --nogamma-transform"
   test "$gamma" = sbit      || opts="$opts --nogamma-sbit"
   test "$gamma" = 16-to-8   || opts="$opts --nogamma-16-to-8"

   if ./pngvalid -q --nostandard $opts
   then
      echo "PASS:" pngvalid "(gamma-$gamma)"
   else
      echo "FAIL:" pngvalid "(gamma-$gamma)"
      err=1
   fi
done

exit $err