[mkgmap-dev] Index: MDR12 breaking POI searchFrom Johann Gail johann.gail at gmx.de on Wed Jan 19 22:52:22 GMT 2011
>> In mdr_creator.cpp in line 1291 is a difference between mdr8 and mdr12. >> The lenght of the mdr12 dataset needs place for one more bit. I cannot >> > > I will double check, although I probably deal with it. > > >> find any code where the mdr12 gets written out, so I cannot see the >> meaning of the bit. Would it be the same as usual, an unique flag? >> Probably not, each 4 char block is unique by design. >> > > The published cpreview does not write out mdr8 and 12, and I am not > sure that it (the cpreview code) is entirely correct anyway. > Section mdr17 seems to do a similar thing. > > I previously thought that the sections 8/12 might be useful for the > device, but on thinking about it they cannot be. Why not? The sections are IMO only usefull at the device. > Mapsource must > re-calculate them when you select a subset of all the maps to be > transfered. > > Good hint. Mapsource must calculate them when not all maps are transfered. And it DOES need a lot of cpu resources for this. So I assume strongly it rebuilds such indexes like this. > Anyway if mdr12 caused a crash for some people (it never did for me) > then we should just remove it for now. > My opinion too.
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