Speed up circular pattern loading

[dsmic]

It is the bottleneck for parameter testing at the moment, therefore I ask, if you have any idea.

Might be an issue in the iPad version because of startup time later too.

If you have any idea, just leave a note:)

Minor points around this (Features.h):

std::map<Pattern::Circular,unsigned int> *circlevels;
std::map<unsigned int,std::string> *circstrings;
std::map<unsigned int,float> *circgammas;

Why are circstrings and circgammas a map? From your explanation with the levels starting at 1 and counting through a vector would be the correct data structure.

There might be fast loading for vectors, therefore I ask this.

[Francois van Niekerk]

You are correct, circstrings and circgammas could be replaced with vectors. The reasons for making them maps don't exist any more. However, I don't think it will make such a big difference as maps should be fairly fast.

[dsmic]

initial support for binary loading in my branch