#!/bin/bash

set -u

set -e

trap onexit INT

trap onexit TERM

trap onexit EXIT

onexit()

{

	if [ -d $OUTDIR ]; then

		rm -rf $OUTDIR

	fi

}

runme()

{

	echo \*\*\* $*

	$*

}

IMAGE=vgl_6548_0026a.bmp

WIDTH=128

HEIGHT=95

IMGDIR=@CMAKE_CURRENT_SOURCE_DIR@/testimages

OUTDIR=`mktemp -d /tmp/__croptest_output.XXXXXX`

EXEDIR=@CMAKE_CURRENT_BINARY_DIR@

if [ -d $OUTDIR ]; then

	rm -rf $OUTDIR

fi

mkdir -p $OUTDIR

exec >$EXEDIR/croptest.log

echo "============================================================"

echo "$IMAGE ($WIDTH x $HEIGHT)"

echo "============================================================"

echo

for PROGARG in "" -progressive; do

	cp $IMGDIR/$IMAGE $OUTDIR

	basename=`basename $IMAGE .bmp`

	echo "------------------------------------------------------------"

	echo "Generating test images"

	echo "------------------------------------------------------------"

	echo

	runme $EXEDIR/cjpeg $PROGARG -grayscale -outfile $OUTDIR/${basename}_GRAY.jpg $IMGDIR/${basename}.bmp

	runme $EXEDIR/cjpeg $PROGARG -sample 2x2 -outfile $OUTDIR/${basename}_420.jpg $IMGDIR/${basename}.bmp

	runme $EXEDIR/cjpeg $PROGARG -sample 2x1 -outfile $OUTDIR/${basename}_422.jpg $IMGDIR/${basename}.bmp

	runme $EXEDIR/cjpeg $PROGARG -sample 1x2 -outfile $OUTDIR/${basename}_440.jpg $IMGDIR/${basename}.bmp

	runme $EXEDIR/cjpeg $PROGARG -sample 1x1 -outfile $OUTDIR/${basename}_444.jpg $IMGDIR/${basename}.bmp

	echo

	for NSARG in "" -nosmooth; do

		for COLORSARG in "" "-colors 256 -dither none -onepass"; do

			for Y in {0..16}; do

				for H in {1..16}; do

					X=$(( (Y*16)%128 ))

					W=$(( WIDTH-X-7 ))

					if [ $Y -le 15 ]; then

						CROPSPEC="${W}x${H}+${X}+${Y}"

					else

						Y2=$(( HEIGHT-H ));

						CROPSPEC="${W}x${H}+${X}+${Y2}"

					fi

					echo "------------------------------------------------------------"

					echo $PROGARG $NSARG $COLORSARG -crop $CROPSPEC

					echo "------------------------------------------------------------"

					echo

					for samp in GRAY 420 422 440 444; do

						$EXEDIR/djpeg $NSARG $COLORSARG -rgb -outfile $OUTDIR/${basename}_${samp}_full.ppm $OUTDIR/${basename}_${samp}.jpg

						convert -crop $CROPSPEC $OUTDIR/${basename}_${samp}_full.ppm $OUTDIR/${basename}_${samp}_ref.ppm

						runme $EXEDIR/djpeg $NSARG $COLORSARG -crop $CROPSPEC -rgb -outfile $OUTDIR/${basename}_${samp}.ppm $OUTDIR/${basename}_${samp}.jpg

						runme cmp $OUTDIR/${basename}_${samp}.ppm $OUTDIR/${basename}_${samp}_ref.ppm

					done

					echo

				done

			done

		done

	done

done

echo SUCCESS!