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8d26863a51
* FloatToInt() should now round correctly ot nearest, even for negative numbers * Log2() now calls log2f() instead of log10()*3.321 - no idea what the previous code was about, I doubt it's faster (and the ASM code uses something like log2, too). * FastLog2() (for integers) now uses __builtin_clz() when building with GCC/clang - the resulting ASM should be pretty similar to the inline ASM below. I wonder why that function takes signed ints, log2(-1) in reality is an irrational number (but the function returns 31).. Also, both the inline ASM and my version return 0 for Log2(0), but INT_MIN would be closer to the truth * commented out FastMaxLog2(), it's unused. * implemented _rotl() using a fast(er) trick from http://blog.regehr.org/archives/1063