diff options
| -rw-r--r-- | CMakeLists.txt | 1 | ||||
| -rw-r--r-- | OpenAL32/Include/alu.h | 2 | ||||
| -rw-r--r-- | common/math_defs.h | 13 | ||||
| -rw-r--r-- | config.h.in | 3 |
4 files changed, 18 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index a7d13777..16daa8d5 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -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) diff --git a/OpenAL32/Include/alu.h b/OpenAL32/Include/alu.h index ed318ada..c3e6ba12 100644 --- a/OpenAL32/Include/alu.h +++ b/OpenAL32/Include/alu.h @@ -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; diff --git a/common/math_defs.h b/common/math_defs.h index 04d73f42..99cc62ec 100644 --- a/common/math_defs.h +++ b/common/math_defs.h @@ -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)) diff --git a/config.h.in b/config.h.in index 1ff64fe4..9cc6c16b 100644 --- a/config.h.in +++ b/config.h.in @@ -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 |