[mkgmap-dev] Patch: use all 4 bytes of POIGlobalFlags in LBL Header

Sat Feb 12 15:21:19 GMT 2022

Hi Ticker,

I don't understand. The number of bytes doesn't change, the
patch just places more information in the flags field instead of
ignoring them.
I am not aware of any code in mkgmap that reads or fills those bits,yet.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
Gesendet: Samstag, 12. Februar 2022 15:19
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Patch: use all 4 bytes of POIGlobalFlags in LBL Header

Hi Gerd

Reading it more carefully, probably the basic flag set is 16 bits, with
0x0100 indicating more bytes to read/write

Ticker

On Sat, 2022-02-12 at 12:36 +0000, Ticker Berkin wrote:
> Hi Gerd
>
> Although the comment might have inaccuracies and be ambiguous, it
> contains useful information about how the extra flags for POI might
> be
> represented, which could be different from just reading 4 bytes.
>
> One way of interpret it is if (first byte & 0x80), then read/write
> extra bytes; the 3 zero/unknown bytes not being part of this flag
> set.
>
> Ticker
>
>
> On Fri, 2022-02-11 at 15:33 +0000, Gerd Petermann wrote:
> > And now with the patch ...
> >
> > Gerd
> >
> > ________________________________________
> > Von: Gerd Petermann
> > Gesendet: Freitag, 11. Februar 2022 16:32
> > An: mkgmap-dev at lists.mkgmap.org.uk
> > Betreff: Patch: use all 4 bytes of POIGlobalFlags in LBL Header
> >
> > Hi devs,
> >
> > attached patch simplifies the code, but should not change anything
> > in
> > the output of mkgmap.
> >
> > GPXSee contains code to evaluate some of the bits which were
> > ignored
> > so far.
> >
> > Do you see any problems?
> >
> > Gerd
> > _______________________________________________
> > mkgmap-dev mailing list
> > mkgmap-dev at lists.mkgmap.org.uk
> > https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
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