aka GIMP 2.9, or "GIMP does 16 bit" and then some. Yay!
It is sluggish at the moment but the basics work. Finally something that can stack >8 bit images that does not require a Windows license. (There are others, but those are FITS based. And converting to/from FITS is not exactly painless. My main need for >8 bit image manipulation is actually astrophotography, but my camera is a plain DSLR and it does not talk FITS.) No crashes so far.
The worst part about building it is finding the right dependencies; plus Gnome's hidden autotools extensions seem to be designed to make life miserable. Cue a linking mess that can only be recovered from by starting over. But once you sort out the versions (GTK 3 is not GTK 2 :-/), insane naming (package atk-bridge is really at-spi2-atk plus at-spi2-core) and circular references (freetype2 <-> harfbuzz <-> cairo), it all comes together without problems.
It is sluggish at the moment but the basics work. Finally something that can stack >8 bit images that does not require a Windows license. (There are others, but those are FITS based. And converting to/from FITS is not exactly painless. My main need for >8 bit image manipulation is actually astrophotography, but my camera is a plain DSLR and it does not talk FITS.) No crashes so far.
The worst part about building it is finding the right dependencies; plus Gnome's hidden autotools extensions seem to be designed to make life miserable. Cue a linking mess that can only be recovered from by starting over. But once you sort out the versions (GTK 3 is not GTK 2 :-/), insane naming (package atk-bridge is really at-spi2-atk plus at-spi2-core) and circular references (freetype2 <-> harfbuzz <-> cairo), it all comes together without problems.