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June 1994
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1994.06.29 11:04 "Re: tiff "Bugs and such" v3.3beta002", by Karsten Spang
In message <199406291615.LAA12240@asgard.nts.mh.se> ,
Lars.Farm@nts.mh.se (Lars Farm) writes:
>First, may I ask about faxcompression?
>
>I noticed that for the (Mac)-MPW port fax compression was excluded. This is
>because of the very large state tables in g3states.h. Using Metrowerks
>Codewarrior on Macintosh I had no problem compiling, but I get some 140000
>bytes of global data in tif_fax3.c. I think this is rather a bit on the
>much side. Is there a leaner "tif_fax3.c" or a leaner way to do fax
>(de-)compression? sources available?
libtiff v2 had a less memory consuming (but slower, you don't get anything
for free:-) fax decompression. It did not have any support for G4 either.
It may be possible to cut out the bit fiddling (i.e. Huffman decoding) of
the v2 tif_fax3.c, and then substitute it into the v3 one. I believe that I
still have a copy of the files around somewhere, in case someone wants to
try this.
Karsten
--------------------------------------------------------------------------------
E-mail: krs@kampsax.dk Karsten Spang
Phone: +45 36 77 22 23 Kampsax Data
Fax: +45 36 77 03 01 P.O. Box 1142
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