47 lines
883 B
C
47 lines
883 B
C
#ifndef AL_MATH_DEFS_H
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#define AL_MATH_DEFS_H
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#include <math.h>
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#ifdef HAVE_FLOAT_H
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#include <float.h>
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#endif
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#ifndef M_PI
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#define M_PI (3.14159265358979323846)
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#endif
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#define F_PI (3.14159265358979323846f)
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#define F_PI_2 (1.57079632679489661923f)
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#define F_TAU (6.28318530717958647692f)
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#ifndef FLT_EPSILON
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#define FLT_EPSILON (1.19209290e-07f)
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#endif
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#ifndef HUGE_VALF
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static const union msvc_inf_hack {
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unsigned char b[4];
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float f;
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} msvc_inf_union = {{ 0x00, 0x00, 0x80, 0x7F }};
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#define HUGE_VALF (msvc_inf_union.f)
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#endif
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#ifndef HAVE_LOG2F
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static inline float log2f(float f)
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{
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return logf(f) / logf(2.0f);
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}
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#endif
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#ifndef HAVE_CBRTF
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static inline float cbrtf(float f)
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{
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return powf(f, 1.0f/3.0f);
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}
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#endif
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#define DEG2RAD(x) ((float)(x) * (float)(M_PI/180.0))
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#define RAD2DEG(x) ((float)(x) * (float)(180.0/M_PI))
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#endif /* AL_MATH_DEFS_H */
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