LZW Decompressor

[vgvgf]

I need a LZW Decompressor, for finishing my GIF player script. The best thing will be a ruby LZW Decompressor, or an easy translatable script in other languages. Maybe, a how LZW decompressor works guide, or something similar to that, will be good too.

 

[rataime]

The problem is, given that LZW was patent-protected (well, in the USA, at least), it wasn't included in ruby. You have Zlib instead, which is what gzip/png is based on, thus enabling rmxp to work with pngs.

 

[vgvgf]

The problem is, given that LZW was patent-protected (well, in the USA, at least), it wasn't included in ruby. You have Zlib instead, which is what gzip/png is based on, thus enabling rmxp to work with pngs.

I want to load animated gifs in rmxp, I am reading the files by bytes, but I can't read the images color data without a LZW decompressor. However, I have heared that the LZW patent has finished some time ago.

 

[rataime]

It has, but noboby cared, because Zlib.deflate is better.

You might be able to translate this example from python to ruby (seems easy enough) :

http://en.wikipedia.org/wiki/LZW#Python_example

Check if it works in python before, though