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#! /bin/sh
# This script tests: pnmtosgi sgitopnm
# Also requires: rgb3toppm pamdepth pamtopnm pgmtopbm
tmpdir=${tmpdir:-/tmp}
a_sgi=${tmpdir}/a.sgi
a_red=${tmpdir}/a.red
a_grn=${tmpdir}/a.grn
a_blu=${tmpdir}/a.blu
echo "Test 1. Should produce 1926073387 101484 twice"
pnmtosgi -rle testimg.ppm | tee ${a_sgi} | sgitopnm | cksum
sgitopnm -channel=0 ${a_sgi} > ${a_red}
sgitopnm -channel=1 ${a_sgi} > ${a_grn}
sgitopnm -channel=2 ${a_sgi} > ${a_blu}
rgb3toppm ${a_red} ${a_grn} ${a_blu} | cksum
rm ${a_sgi} ${a_red} ${a_grn} ${a_blu}
b_sgi=${tmpdir}/b.sgi
b_red=${tmpdir}/b.red
b_grn=${tmpdir}/b.grn
b_blu=${tmpdir}/b.blu
echo "Test 2. Should produce 1926073387 101484 twice"
pnmtosgi -verbatim testimg.ppm | tee ${b_sgi} | sgitopnm | cksum
sgitopnm -channel=0 ${b_sgi} > ${b_red}
sgitopnm -channel=1 ${b_sgi} > ${b_grn}
sgitopnm -channel=2 ${b_sgi} > ${b_blu}
rgb3toppm ${b_red} ${b_grn} ${b_blu} | cksum
rm ${b_sgi} ${b_red} ${b_grn} ${b_blu}
echo "Test 3. Should produce 281226646 481 twice"
pnmtosgi maze.pbm | sgitopnm | pgmtopbm -threshold -value=0.5 | cksum
# Defaults to -rle
pnmtosgi -verbatim maze.pbm | sgitopnm | \
pgmtopbm -threshold -value=0.5 | cksum
maze_pgm=${tmpdir}/maze.pgm
echo "Test 4. Should produce 4155890407 6741 three times"
pamdepth 65535 maze.pbm | pamtopnm | tee ${maze_pgm} | cksum
pnmtosgi -rle ${maze_pgm} | sgitopnm | cksum
pnmtosgi -verbatim ${maze_pgm} | sgitopnm | cksum
rm ${maze_pgm}
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