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#! /bin/bash
# This script tests: pnmtosgi sgitopnm
# Also requires: rgb3toppm pamdepth pamtopnm
a_sgi=${tmpdir}/a.sgi
a_red=${tmpdir}/a.red
a_grn=${tmpdir}/a.grn
a_blu=${tmpdir}/a.blu
# 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
# 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} ${b_blu}
# Test 3. Should produce 2425386270 41 twice
pnmtosgi testgrid.pbm | sgitopnm | cksum # Defaults to -rle
pnmtosgi -verbatim testgrid.pbm | sgitopnm | cksum
testgrid_pgm=${tmpdir}/testgrid.pgm
# Test 4. Should produce 2394972481 463 twice
pamdepth 65535 testgrid.pbm | pamtopnm | tee ${testgrid_pgm} | \
pnmtosgi -rle | sgitopnm | cksum
pnmtosgi -verbatim ${testgrid_pgm} | sgitopnm | cksum
rm ${testgrid_pgm}
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