AuroraMiddleware/AuroraOpenALSoft
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Check for and use copysignf

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This commit is contained in:
Chris Robinson 2018-08-29 03:51:17 -07:00
parent 529f387695
commit 21dc2c761d
4 changed files with 18 additions and 1 deletions
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1
CMakeLists.txt
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@ -536,6 +536,7 @@ CHECK_SYMBOL_EXISTS(lrintf math.h HAVE_LRINTF)
CHECK_SYMBOL_EXISTS(modff math.h HAVE_MODFF)
CHECK_SYMBOL_EXISTS(log2f math.h HAVE_LOG2F)
CHECK_SYMBOL_EXISTS(cbrtf math.h HAVE_CBRTF)
CHECK_SYMBOL_EXISTS(copysignf math.h HAVE_COPYSIGNF)
IF(HAVE_FLOAT_H)
CHECK_SYMBOL_EXISTS(_controlfp float.h HAVE__CONTROLFP)

2
OpenAL32/Include/alu.h
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@ -484,7 +484,7 @@ inline void CalcAngleCoeffs(ALfloat azimuth, ALfloat elevation, ALfloat spread,
*/
inline float ScaleAzimuthFront(float azimuth, float scale)
{
ALfloat sign = (azimuth < 0.0f) ? -1.0f : 1.0f;
ALfloat sign = copysignf(1.0f, azimuth);
if(!(fabsf(azimuth) > F_PI_2))
return minf(fabsf(azimuth) * scale, F_PI_2) * sign;
return azimuth;

13
common/math_defs.h
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@ -40,6 +40,19 @@ static inline float cbrtf(float f)
}
#endif
#ifndef HAVE_COPYSIGNF
static inline float 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;
}
#endif
#define DEG2RAD(x) ((float)(x) * (float)(M_PI/180.0))
#define RAD2DEG(x) ((float)(x) * (float)(180.0/M_PI))

3
config.h.in
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@ -98,6 +98,9 @@
/* Define if we have the cbrtf function */
#cmakedefine HAVE_CBRTF
/* Define if we have the copysignf function */
#cmakedefine HAVE_COPYSIGNF
/* Define if we have the strtof function */
#cmakedefine HAVE_STRTOF