#!/bin/sh

# usage: compress-texture tool compression in.png out.dds
# example: compress-texture compressonator dxt1 foo.jpg foo.dds

echo >&2 "$0 $*"

tool=$1; shift
format=$1; shift
src=$1; shift
dst=$1; shift

c=
f=
case "$tool" in
	compressonator-dxtc|compressonator-atic)
		case "$tool" in
			*-dxtc) c="-codec DXTC.dll" ;;
			*-atic) c="-codec ATICompressor.dll" ;;
		esac
		case "$format" in
			dxt1) f="+fourCC DXT1" ;;
			dxt3) f="+fourCC DXT3" ;;
			dxt5) f="+fourCC DXT5" ;;
		esac
		dir=`mktemp -d "$HOME/.wine/drive_c/compressonator.XXXXXX"`
		dir_dos="C:/${dir##*/}"
		ext=${src##*.}
		cp "$src" "$dir/src.$ext"
		wine "$HOME/.wine/drive_c/Program Files/AMD/The Compressonator 1.50/TheCompressonator.exe" -convert -mipmaps "$dir_dos/src.$ext" "$dir_dos/dst.dds" $c $f "$@" -mipper BoxFilter.dll
		mv "$dir/dst.dds" "$dst"
		rm -rf "$dir"
		;;
	nvcompress)
		case "$format" in
			dxt1) f="-bc1" ;;
			dxt3) f="-alpha -bc3" ;;
			dxt5) f="-alpha -bc5" ;;
		esac
		nvcompress $f "$@" "$src" "$dst"
		;;
esac