35 static inline float fast_exp2f(float x)  in fast_exp2f()  argument
44     y = (    c[0]) * x;  in fast_exp2f()
45     y = (y + c[1]) * x;  in fast_exp2f()
46     y = (y + c[2]) * x;  in fast_exp2f()
47     y = (y + c[3]) * x;  in fast_exp2f()
48     y = (y + c[4]) * x;  in fast_exp2f()
66 static inline float fast_log2f(float x)  in fast_log2f()  argument
76     x = frexpf(x, &e);  in fast_log2f()
78     y = (    c[0]) * x;  in fast_log2f()
79     y = (y + c[1]) * x;  in fast_log2f()
80     y = (y + c[2]) * x;  in fast_log2f()
81     y = (y + c[3]) * x;  in fast_log2f()
94 static inline float fast_log10f(float x)  in fast_log10f()  argument
96     return log10f(2) * fast_log2f(x);  in fast_log10f()
107 static inline int32_t fast_db_q16(float x)  in fast_db_q16()  argument
148     union { float f; uint32_t u; } x2 = { .f = x*x };  in fast_db_q16()