Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!shadooby!samsung!cs.utexas.edu!sun-barr!oliveb!pyramid!bjb From: bjb@pyrshadow.pyramid.com (Bruce Beare) Newsgroups: comp.sys.mac.programmer Subject: Re: PackBits routine Message-ID: <96302@pyramid.pyramid.com> Date: 28 Dec 89 17:45:15 GMT Sender: daemon@pyramid.pyramid.com Distribution: na Organization: Pyramid Technology Corporation Lines: 30 In article <1455@gvgpvd.GVG.TEK.COM> andyp@gvgpvd.GVG.TEK.COM (Andy Peterman) writes: > In article <96197@pyramid.pyramid.com> bjb@pyrshadow.pyramid.com (Bruce Beare) writes: > >........ Packbits seems to do some sort of a run-length encoding, but I > >don't believe that it is completely specified in IM. I've found no TNs > >that describe exactly what it does. > > > >Has anyone come across this little bit of trivia? > > Trivia indeed! Check out TN #171. It ONLY took me about 10 minutes to > find this myself, having remembered that I saw this description > somewhere. It seems that this Technote isn't reffered to by any of the > indexes under the word "Packbits". Strange... > > Andy Mea Culpa. I tried to use the 'Tech Notes' stack -- for the first time. I checked the index for 'packbits' and did not find it. It never occured to me to look under the 'misc' category and find the '_packbits' routine. Thanks to the several responders who pointed me to #171. Gee, that was obvious, wasn't it. -Bruce