New archive file format (was: [omgps] collect feature requests)

[mqy]

Thumb up for your effort:)

A simpler design choice would be:

1. int get_tile_meta(int zoom, int x, int y, TileMeta *tm) -- fill in
<offset>, <size>; return -1 if tile not found
   -- implemented by collecting per map meta info into a sqlite database
2. int get_tile_bytes(char* buf, TileMeta *tm) -- read tile content into
<buf> of <size>
   -- implemented by collecting tiles into a big file.

Where TileMeta is defined as:
struct TileMeta
{
    int offset;
    int size;
    U4 crc;
    char *name; // optional
};

This kind of data source is abstracted as a tile provider, in addition to
the default standard file system based one.
I'd like to see if xar works well too.

regards, 
  mqy


Laszlo KREKACS wrote:
> 
> Hi!
> 
> I have studied all the available archive and compression options.
> ...
> Best regards,
>  Laszlo
> ...
> 

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