Hi Siarhei,
The attached patch contains optimization for scale factors calculation which
provides additional SBC encoder speedup.
For non-gcc compilers, CLZ function is implemented with a very simple and
slow straightforward code (but it is still faster than current git code even
if used instead of __builtin_clz). Something better could be done like:
http://groups.google.com/group/comp.sys.arm/msg/5ae56e3a95a2345e?hl=en
But I'm not sure about license/copyright of the code at this link and decided
not to touch it. Anyway, I don't think that gcc implementation of
__builtin_clz for the CPU cores which do not support CLZ instruction is any
worse.
personally I don't really care about non-gcc compilers. I think that
some of the BlueZ source might not even compile without gcc.
Anyway, patch has been applied. Thanks.
Regards
Marcel