diff options
| author | Chris Robinson <[email protected]> | 2017-06-29 10:11:31 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2017-06-29 10:11:31 -0700 |
| commit | a69d608a1ec38e6afd903224e86c0bf29b8d0623 (patch) | |
| tree | 449efe96be44689d54c0b1fb228bb181cbbac9c5 /common | |
| parent | aefa11b6adf3bdd0e82d2c2f125d2bd62288e246 (diff) | |
Define a backup log2f if the compiler doesn't have it
Diffstat (limited to 'common')
| -rw-r--r-- | common/math_defs.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/common/math_defs.h b/common/math_defs.h index 1b394976..cbe9091f 100644 --- a/common/math_defs.h +++ b/common/math_defs.h @@ -22,6 +22,13 @@ static const union msvc_inf_hack { #define HUGE_VALF (msvc_inf_union.f) #endif +#ifndef HAVE_LOG2F +static inline float log2f(float f) +{ + return logf(f) / logf(2.0f); +} +#endif + #define DEG2RAD(x) ((float)(x) * (F_PI/180.0f)) #define RAD2DEG(x) ((float)(x) * (180.0f/F_PI)) |