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#!/bin/sh
# Attempt to convert any image file to XPM format. Requires the netpbm
# package for all formats except XPM itself. JPEG also requires the
# djpeg program.
# Compressed files are automatically decompressed before converting.
# Requires gzip and uncompress.
# For unknown extensions, the script falls back to anytopnm which is
# part of netpbm.
# echo "Converting $1" 1>&2
convert_image()
{
case "$1" in
*.gz )
name=`basename $1 .gz`
tmpfile=/tmp/DeCoDe_${name}
cp $1 ${tmpfile}.gz
gzip -df ${tmpfile}.gz
convert_image $tmpfile
rm ${tmpfile}
;;
*.Z )
name=`basename $1 .Z`
tmpfile=/tmp/DeCoDe_${name}
cp $1 ${tmpfile}.Z
uncompress -f ${tmpfile}.Z
convert_image ${tmpfile}
rm ${tmpfile}
;;
*.gif | *.GIF )
giftopnm $1 | ppmtoxpm
;;
*.jpg | *.jpeg | *.JPG | *.JPEG )
djpeg -colors 128 $1 | ppmtoxpm
;;
*.tif | *.tiff | *.TIF | *.TIFF )
tifftopnm $1 | ppmtoxpm
;;
*.png | *.PNG )
pngtopnm $1 | ppmtoxpm
;;
*.bmp | *.BMP )
bmptoppm $1 | ppmtoxpm
;;
*.xpm | *.XPM )
cat $1
;;
* )
anytopnm $1 | ppmtoxpm
;;
esac
}
convert_image $1
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