Panfrost ETC2 texture decompression
Mesa patch at https://gitlab.freedesktop.org/icecream95/mesa/commits/etc2.
Note that EtcTool only likes png input and for outputting to the current directory you need to use ./:
$ EtcTool input.png -ouput ./tex.ktx -effort 60 -j 4 -errormetric rgbx
You can also use ETCPACK, if you don't mind spending 10 minutes getting it to compile:
$ etcpack input.png out.ktx
Tiling currently causes some problems: