i was just playing with adding thread supprot to INTERNALS of evas (ie the

i was just playing with adding thread supprot to INTERNALS of evas (ie the
renderer gets threaded). if i thread at the simplest levels (low down in for
example the image scaler code - one of the most expensvie gfx routnes) on an
actual dual core system - performance drops by 40%. this just doesn't work
well at that level. thread creates and joins per render op are just a bad
thing (tm) :) so this really needs to go in much higher up and that presents
problems. :( i will need to clearly define entry and exit points to and from
threaded space (and thus all the locks) - remove all nested calls (where
internal code goes thru the same entry/exit points traditionally so it
deadlocks itself).. anyway - this here has all that code stripepd out i
played with - it is just the autofoo and build stuff so we can turn on/off
thread support at will in the build.

SVN revision: 26817