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Mail Archives: djgpp/1999/09/18/14:34:34

From: "Damian Yerrick" <mail DOT me DOT at DOT your DOT own DOT risk AT pineight DOT 8m DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: GIF File encoders...
Date: Sat, 18 Sep 1999 11:13:43 -0500
Organization: Rose-Hulman Institute of Technology
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References: <37E3AB4A DOT 3665290F AT geocities DOT com>
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To: djgpp AT delorie DOT com
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Sahab Yazdani <beyonder69 AT geocities DOT com> wrote in message
news:37E3AB4A DOT 3665290F AT geocities DOT com...
> So what I need is some simple src-code
> that will translate a memory buffer to a gif file on disk.  Anyways
> thanks for any info you may provide!

I can't give that link to you. The GIF image format uses LZW
compression, and Unisys owns the patent on LZW compression
and will not license it to free software (GPL) developers.
http://www.gnu.org/philosophy/gif.html
http://lpf.ai.mit.edu/Patents/Gif/Gif.html

However, PNG (ping) is an alternative to GIF, supported (at least
partially) by newer browsers.
http://www.cdrom.com/pub/png/

The International JPEG Group has released free source code
for reading and writing JPEGs. See section 15 of
http://www.faqs.org/faqs/jpeg-faq/part2/

But if I gave you GIF, that would be patent infringement.

Damian Yerrick
http://pineight.webjump.com/


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