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- #ifndef AL_MATH_DEFS_H
- #define AL_MATH_DEFS_H
- #include <math.h>
- #ifdef HAVE_FLOAT_H
- #include <float.h>
- #endif
- #define F_PI (3.14159265358979323846f)
- #define F_PI_2 (1.57079632679489661923f)
- #define F_TAU (6.28318530717958647692f)
- #ifndef FLT_EPSILON
- #define FLT_EPSILON (1.19209290e-07f)
- #endif
- #ifndef HUGE_VALF
- static const union msvc_inf_hack {
- unsigned char b[4];
- float f;
- } msvc_inf_union = {{ 0x00, 0x00, 0x80, 0x7F }};
- #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))
- #endif /* AL_MATH_DEFS_H */
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