RE: [XaraXtreme-dev] Font metrics and kerning update

[Martin Wuerthner <lists@xxxxxxxxxxxxxxx>]

In message <5056CBC646CB4047BB26120F4377DB719BA2FC@xxxxxxxxxxxxxxxxxxx 
>
          "Charles Moir" <CharlesM@xxxxxxxx> wrote:

> Does the 'uncached' comment suggest that kerning data is usually cached
> in Camelot?

Yes. The Windows code simply reads the complete kerning table from the 
font and stores it in a cache. The cache size is configured to be 3, 
so only 3 fonts can be cached at the same time, i.e., when the 4th is 
needed one previous entry is discarded.

With FreeType, it is not possible to read the complete kerning table, 
and it might not be a good idea for a huge Unicode font anyway. It 
would still be possible to cache the kerning pairs (and it would 
probably be a good idea).

Martin