#! /bin/bash

# This script tests: g3topbm pbmtog3

# Also requires: pnmcrop

tmpdir=${tmpdir:-/tmp}

complete256_pbm=${tmpdir}/complete256.pbm

widew_pbm=${tmpdir}/widew.pbm

wideb_pbm=${tmpdir}/wideb.pbm

pbmtog3 -nofixedwidth testgrid.pbm | \

g3topbm -width=14 | cmp -s - testgrid.pbm

echo $?

pbmtog3 -nofixedwidth -reversebits testgrid.pbm | \

g3topbm -width=14 -reversebits | cmp -s - testgrid.pbm

echo $?

pbmtog3 testgrid.pbm | \

g3topbm  | pnmcrop -white -right -bottom | \

 cmp -s - testgrid.pbm ; echo $?

# works with gawk and mawk

# produce all possible 8-bit patterns

LC_ALL=C awk 'BEGIN { print "P4";         # header

                      print "8 256";

                      for (i=0;i<256;++i) # raster

                           printf("%c",i) }' > ${complete256_pbm}

pbmtog3 -nofixedwidth  ${complete256_pbm} |  g3topbm -width=8 | \

 cmp -s - ${complete256_pbm} ; echo $?

pbmtog3 -reverse -nofixedwidth ${complete256_pbm} | \

g3topbm -reversebits -width=8 | \

 cmp -s - ${complete256_pbm} ; echo $?

pbmtog3 -align8 ${complete256_pbm} | \

g3topbm -width=1728 | pnmcrop -white -right | \

 cmp -s - ${complete256_pbm} ; echo $?

pbmtog3 -align16 ${complete256_pbm} | \

g3topbm -width=1728 | pnmcrop -white -right | \

 cmp -s - ${complete256_pbm} ; echo $?

pbmmake -w 5000 5 > ${widew_pbm}

pbmtog3 -nofixedwidth ${widew_pbm} | g3topbm | \

 cmp -s - ${widew_pbm} ; echo $?

pbmtog3 -nofixedwidth ${widew_pbm} | \

g3topbm -width=5000 | \

 cmp -s - ${widew_pbm} ; echo $?

pbmmake -b 5000 5 > ${wideb_pbm}

pbmtog3 -nofixedwidth ${wideb_pbm} | g3topbm | \

 cmp -s - ${wideb_pbm} ; echo $?

cat ${complete256_pbm} | cksum

cat ${wideb_pbm} | cksum

cat ${widew_pbm} | cksum

rm ${complete256_pbm} ${wideb_pbm} ${widew_pbm}