xonotic/misc/tools/compress-texture
2011-07-16 22:19:31 +02:00

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#!/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=$1; shift
ext=${src##*.}
c=
f=
fourcchack=
case "$tool" in
compressonator-dxtc)
# we still have to preprocess the image to premultiply alpha, as it seems
case "$format" in
dxt2)
fourcchack=DXT2
format=dxt2
;;
dxt4)
fourcchack=DXT4
format=dxt4
;;
esac
;;
*)
case "$format" in
dxt2)
fourcchack=DXT2
format=dxt3
;;
dxt4)
fourcchack=DXT4
format=dxt5
;;
esac
;;
esac
if [ -n "$fourcchack" ]; then
fourcchack_dir=`mktemp -d`
convert "$src" -fx "u*u.a" "$fourcchack_dir/src.$ext"
src="$fourcchack_dir/src.$ext"
fi
case "$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" ;;
dxt2) f="+fourCC DXT2" ;;
dxt3) f="+fourCC DXT3" ;;
dxt4) f="+fourCC DXT4" ;;
dxt5) f="+fourCC DXT5" ;;
esac
dir=`mktemp -d "$HOME/.wine/drive_c/compressonator.XXXXXX"`
dir_dos="C:/${dir##*/}"
cp "$src" "$dir/src.$ext"
# compressonator and wine suck, so we sometimes have to retry :(
for retry in 1 2 3 4 5; do
wine "c:/Program Files/AMD/The Compressonator 1.50/TheCompressonator.exe" -convert -mipmaps "$dir_dos/src.$ext" "$dir_dos/dst.dds" $c $f "$@" -mipper BoxFilter.dll
if mv "$dir/dst.dds" "$dst"; then
break
fi
done
rm -rf "$dir"
[ -f "$dst" ]
;;
nvcompress)
case "$format" in
dxt1) f="-bc1" ;;
dxt3) f="-alpha -bc3" ;;
dxt5) f="-alpha -bc5" ;;
esac
nvcompress $f "$@" "$src" "$dst"
;;
s2tc)
case "$format" in
dxt1) f="-t DXT1" ;;
dxt3) f="-t DXT3" ;;
dxt5) f="-t DXT5" ;;
esac
s2tc_compress $f "$@" -i "$src" -o "$dst"
;;
esac
if [ -n "$fourcchack" ]; then
# use dd to hack in the right FOURCC
echo -n "$fourcchack" | dd of="$dst" bs=1 count=4 seek=84 conv=notrunc
rm -rf "$fourcchack_dir"
fi