#!/bin/bash

TODDS=./todds.sh

strpos() {
    str=${1/$2*/}
    return `expr length $str`
}
#strpos $string $string2
#echo $?

rm *.dds

for X in *.png 
do
    SRC=$X
    DST=`echo "$X" | sed -e 's/png/dds/g'`
    strpos "$SRC" "alpha"
	POS=$?
	LEN=${#SRC}
	
	# Compression format (0 = None, 1 = BC1/DXT1, 2 = BC2/DXT3, 3 = BC3/DXT5, 4 = BC3n/DXT5n, 5 = BC4/ATI1N, 6 = BC5/ATI2N, 7 = Alpha Exponent (DXT5), 8 = YCoCg (DXT5), 9 = YCoCg scaled (DXT5))
	#COMPRESSION=$3
	# How to save the image (0 = selected layer, 1 = cube map, 2 = volume map
	#SAVETYPE=$4
	# Custom pixel format (0 = default, 1 = R5G6B5, 2 = RGBA4, 3 = RGB5A1, 4 = RGB10A2)
	#FORMAT=$5
	# Color selection algorithm used in DXT compression (0 = default, 1 = distance, 2 = luminance, 3 = inset bounding box)
	#COLORTYPE=$6
	# Work on dithered color blocks when doing color selection for DXT compression
	#DITHER=$7

	#./todds.sh src dst COMPRESSION SAVETYPE FORMAT COLORTYPE DITHER

	if [ $POS -eq $LEN ]
	then
		echo "NOALPHA $SRC to $DST"
		$TODDS "$SRC" "$DST" 1 0 1 0 0
	else
		echo "ALPHA $SRC to $DST"
		$TODDS "$SRC" "$DST" 3 0 2 0 0
	fi
done