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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
#ifndef M_PI
#define M_PI (3.14159265358979323846)
#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
#define SQRT_2 1.41421356237309504880
#define SQRT_3 1.73205080756887719318
#define SQRTF_2 1.41421356237309504880f
#define SQRTF_3 1.73205080756887719318f
#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 my_log2f(float f)
{
return logf(f) / logf(2.0f);
}
#define log2f my_log2f
#endif
#ifndef HAVE_CBRTF
static inline float my_cbrtf(float f)
{
return powf(f, 1.0f/3.0f);
}
#define cbrtf my_cbrtf
#endif
#ifndef HAVE_COPYSIGNF
static inline float my_copysignf(float x, float y)
{
union {
float f;
unsigned int u;
} ux = { x }, uy = { y };
ux.u &= 0x7fffffffu;
ux.u |= (uy.u&0x80000000u);
return ux.f;
}
#define copysignf my_copysignf
#endif
#define DEG2RAD(x) ((float)(x) * (float)(M_PI/180.0))
#define RAD2DEG(x) ((float)(x) * (float)(180.0/M_PI))
#endif /* AL_MATH_DEFS_H */
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