[poppler] change font cache policy to improve performance.

[Albert Astals Cid]

A Diumenge, 28 d'agost de 2011, Sam Liao vàreu escriure:
> Most of the efforts of font rendering is wasted on makeGlyph as
> for the cache mechinism, this fix tries to use a unlimited cache
> to improve the performance. Testing result of the perf-test program
> showes up it reduces about more than 25% running time.

Unfortunately it is a bit late in the 0.18 release cycle, it will have to wait 
until after we integrate xpdf 3.03 changes and be part of the 0.20 relase 
cycle.

Thanks for the patch.

Albert