diff options
| -rw-r--r-- | Alc/ALu.c | 17 | ||||
| -rw-r--r-- | CMakeLists.txt | 4 |
2 files changed, 20 insertions, 1 deletions
@@ -650,9 +650,20 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma ALuint loop; ALint64 DataSize64,DataPos64; FILTER *Filter; + int fpuState; SuspendContext(ALContext); +#if defined(HAVE_FESETROUND) + fpuState = fegetround(); + fesetround(FE_TOWARDZERO); +#elif defined(HAVE__CONTROLFP) + fpuState = _controlfp(0, 0); + _controlfp(_RC_CHOP, _MCW_RC); +#else + (void)fpuState; +#endif + //Figure output format variables BlockAlign = aluChannelsFromFormat(format); BlockAlign *= aluBytesFromFormat(format); @@ -1206,5 +1217,11 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma size -= SamplesToDo; } +#if defined(HAVE_FESETROUND) + fesetround(fpuState); +#elif defined(HAVE__CONTROLFP) + _controlfp(fpuState, 0xfffff); +#endif + ProcessContext(ALContext); } diff --git a/CMakeLists.txt b/CMakeLists.txt index 870edb0b..4ed1f898 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -112,10 +112,12 @@ ENDIF() CHECK_LIBRARY_EXISTS(m sqrtf "" HAVE_SQRTF) CHECK_LIBRARY_EXISTS(m acosf "" HAVE_ACOSF) -IF(HAVE_SQRTF OR HAVE_ACOSF) +CHECK_LIBRARY_EXISTS(m fesetround "" HAVE_FESETROUND) +IF(HAVE_SQRTF OR HAVE_ACOSF OR HAVE_FESETROUND) SET(EXTRA_LIBS m ${EXTRA_LIBS}) ENDIF() CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF) +CHECK_FUNCTION_EXISTS(_controlfp HAVE__CONTROLFP) CHECK_FUNCTION_EXISTS(strcasecmp HAVE_STRCASECMP) IF(NOT HAVE_STRCASECMP) |