Java library

[cagnulein]

Hi, thanks for your great work!
I would like to decompress the data generated by an embedded system on Java.
Have you got a ready-to-use solution?
Should i use a standard lzss java class?

Thanks

[silentbicycle]

I don't have an implementation I've checked for compatibility yet, sorry.

LZSS is a pretty standard algorithm, and most of the unique implementation details for heatshrink either have to do with working incrementally or specific heuristics in the encoder for which patterns are / aren't an improvement on literal output. The decoder does far less work than the encoder, and a blocking decoder implementation would be significantly simpler.

It's possible that a standard implementation will work, provided it uses 0b0 to tag back-references and 0b1 for literals, and not vice versa. The algorithm leaves some formatting choices like that as implementation details.

I may write an implementation eventually (which would be tested against the current library version), but I'd be happy to include an implementation with a compatible license.

[cagnulein]

Ok thanks. In the meantine i'm compiling a dll version of your decoder in order to linking in Java.
I will let you know if it will ok.

[cagnulein]

I confirm you that linking the c code compiled as a dll and linking it from java works like a charm.

[silentbicycle]

Fantastic. :)

I added issue #34, to have a compatible simple, blocking implementation as documentation, to make porting like this easier.

[markrileybot]

In case anyone is still interested, I started working on this today: https://github.com/markrileybot/heatshrink-java/

Decoding works fine. I'll write an encoder soon.

[markrileybot]

Java encoder/decoder complete

https://github.com/markrileybot/heatshrink-java/