apple2gs_shr_converter/shr/scripts/cvt2bmp.sh

#!/bin/sh
# cvt2bmp.sh - uses ImageMagick to produce 320 x 200 Input Files for A2B 

# set path to ImageMagick binaries below
# for ImageMagick version 6.9 use the following 
# MAGICK="c:/IM/convert"
# for ImageMagick version 7 use the following 
#MAGICK="c:/IM/magick"

# For most modern Linux distributions, all ImageMagick binaries are located in: /usr/bin/ (see below)
# for ImageMagick version 6.9 use the following 
# MAGICK="/usr/bin/convert"
# for ImageMagick version 7 use the following 
# MAGICK="/usr/bin/magick"
MAGICK=`which magick`

if [ ! -z "${MAGICK}" ]; then
   echo "ERROR: Image Magick isn't installed."
   exit 1
fi

if [ ! -e BMP320 ]; then
	mkdir BMP320
fi	
if [ ! -e ORGBMP ]; then
	mkdir ORGBMP
fi	
if [ ! -e jpg ]; then
	mkdir jpg
fi	

# create GIF input files for native mode converters if needed. 
# if [ ! -e gif ]; then
#	mkdir gif
# fi	

# assumes that all input files are 4:3 Aspect Ratio
# accepts jpegs, pngs, gifs, or BMPs as input files
# converts everything to truecolor BMP before scaling to avoid color loss

criteria="*.jpg"
if ls ./*.jpg 1> /dev/null 2>&1 ; then
for i in $( ls $criteria); 
do
   src=$i
   tgt=$(basename $i .jpg)
   $MAGICK $src -type truecolor -units PixelsPerInch -density 72 -compress None -depth 24 -define format:BMP3 $tgt.bmp
   mv $src ./jpg/
done
fi
criteria="*.png"
if ls ./*.png 1> /dev/null 2>&1 ; then
for i in $( ls $criteria); 
do
   src=$i
   tgt=$(basename $i .png)
   $MAGICK $src -type truecolor -units PixelsPerInch -density 72 -compress None -depth 24 -define format:BMP3 $tgt.bmp
   mv $src ./jpg/
done
fi
criteria="*.gif"
if ls ./*.gif 1> /dev/null 2>&1 ; then
for i in $( ls $criteria); 
do
   src=$i
   tgt=$(basename $i .gif)
   $MAGICK $src -type truecolor -units PixelsPerInch -density 72 -compress None -depth 24 -define format:BMP3 $tgt.bmp
   mv $src ./jpg/
done
fi

# create A2B's input files - scaling is done here. 
criteria="*.bmp"
if ls ./*.bmp 1> /dev/null 2>&1 ; then
for i in $( ls $criteria); 
do
   src=$i
   tgt=$(basename $i .bmp)
   $MAGICK $src -resize "320x200!" -type truecolor -units PixelsPerInch -density 72 -compress None -depth 24 -define format:BMP3 BMP320//$tgt.bmp
   # create GIF input files for native mode converters if needed. 
   # $MAGICK $src -colors 256 -define format:GIF gif//"$tgt"x.gif
done
mv *.bmp ./ORGBMP/
mv BMP320/*.bmp ./
fi

# this is the end