#! /bin/bash
# This script tests: rawtoppm
# Also requires: pamcut ppmtorgb3 rgb3toppm ppmtoppm

# Test 1

echo "Test 1: should print '0 0 : 0'"

rawtoppm -headerskip 15 227 149 testimg.ppm | cmp -s - testimg.ppm
  echo ${PIPESTATUS[@]} ":" $?

# Test 2
echo "Test 2: should print '0 0 : 0' five times"

tmpdir=${tmpdir:-/tmp}
test0_ppm=${tmpdir}/test0.ppm

for i in 0 1 10 99 220
  do
  pamcut -cropright $i testimg.ppm > ${test0_ppm}
  rawtoppm -headerskip 15 -rowskip $((i * 3)) $((227 - i)) 149 testimg.ppm | \
  cmp -s ${test0_ppm} -
  echo ${PIPESTATUS[@]} ":" $?
  done  

rm ${test0_ppm}


# Test 3
echo "Test 3: should print '0 0 0 : 0' five times"

ppmtorgb3 testimg.ppm

rgb3toppm testimg.red testimg.blu testimg.grn | \
  rawtoppm -headerskip 15 -rbg 227 149  | cmp -s - testimg.ppm
  echo ${PIPESTATUS[@]} ":" $?

rgb3toppm testimg.grn testimg.red testimg.blu | \
  rawtoppm -headerskip 15 -grb 227 149 | cmp -s - testimg.ppm
  echo ${PIPESTATUS[@]} ":" $?

rgb3toppm testimg.grn testimg.blu testimg.red | \
  rawtoppm -headerskip 15 -gbr 227 149 | cmp -s - testimg.ppm
  echo ${PIPESTATUS[@]} ":" $?

rgb3toppm testimg.blu testimg.red testimg.grn | \
  rawtoppm -headerskip 15 -brg 227 149 | cmp -s - testimg.ppm
  echo ${PIPESTATUS[@]} ":" $?

rgb3toppm testimg.blu testimg.grn testimg.red | \
  rawtoppm -headerskip 15 -bgr 227 149 | cmp -s - testimg.ppm
  echo ${PIPESTATUS[@]} ":" $?

# Test 4
echo "Test 4"

test1_ppm=${tmpdir}/test1.ppm

cat <<EOF > ${test1_ppm}
P3
5 5
9
0 0 0  0 0 0  0 0 0  0 0 0  0 0 0
0 0 0  0 0 5  5 5 5  5 9 9  9 9 9
0 1 2  3 4 0  1 2 3  4 0 1  2 3 4
0 1 2  3 4 1  2 3 4  5 2 3  4 5 6
9 8 7  6 5 4  3 2 1  0 0 0  0 0 0
EOF

ppmtoppm < ${test1_ppm} | rawtoppm -headerskip 9 5 5 -plain

rm ${test1_ppm} testimg.red testimg.grn testimg.blu