diff options
| author | Chris Robinson <[email protected]> | 2012-09-16 01:44:45 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2012-09-16 01:44:45 -0700 |
| commit | a1daec66e29cf90132d4a5e51e00b04a162f15be (patch) | |
| tree | 8f6dc98a0e1100d7bdd18fc7c663c251b418f143 | |
| parent | 657ee85136861c9da105a67050ae84a85ecfe808 (diff) | |
Use __control87_2 when available
| -rw-r--r-- | Alc/helpers.c | 7 | ||||
| -rw-r--r-- | CMakeLists.txt | 1 | ||||
| -rw-r--r-- | config.h.in | 3 |
3 files changed, 11 insertions, 0 deletions
diff --git a/Alc/helpers.c b/Alc/helpers.c index 5acf2be2..625c9c96 100644 --- a/Alc/helpers.c +++ b/Alc/helpers.c @@ -185,6 +185,10 @@ void SetMixerFPUMode(FPUCtl *ctl) if((CPUCapFlags&CPU_CAP_SSE)) newState |= 0x8000; /* flush-to-zero */ _FPU_SETCW(newState); +#elif defined(HAVE___CONTROL87_2) + int mode; + __control87_2(0, 0, &ctl->state, NULL); + __control87_2(_RC_CHOP|_DN_FLUSH|_PC_24, _MCW_RC|_MCW_DN|_MCW_PC, &mode, NULL); #elif defined(HAVE__CONTROLFP) ctl->state = _controlfp(0, 0); (void)_controlfp(_RC_CHOP|_DN_FLUSH|_PC_24, _MCW_RC|_MCW_DN|_MCW_PC); @@ -201,6 +205,9 @@ void RestoreFPUMode(const FPUCtl *ctl) #if defined(_FPU_GETCW) && defined(_FPU_SETCW) && (defined(__i386__) || defined(__x86_64__)) fpu_control_t fpuState = ctl->state; _FPU_SETCW(fpuState); +#elif defined(HAVE___CONTROL87_2) + int mode; + __control87_2(ctl->state, _MCW_RC|_MCW_DN|_MCW_PC, &mode, NULL); #elif defined(HAVE__CONTROLFP) _controlfp(ctl->state, _MCW_RC|_MCW_DN|_MCW_PC); #elif defined(HAVE_FESETROUND) diff --git a/CMakeLists.txt b/CMakeLists.txt index 64656c45..88e2a38c 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -277,6 +277,7 @@ IF(HAVE_FENV_H) ENDIF() IF(HAVE_FLOAT_H) CHECK_SYMBOL_EXISTS(_controlfp float.h HAVE__CONTROLFP) + CHECK_SYMBOL_EXISTS(__control87_2 float.h HAVE___CONTROL87_2) ENDIF() CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF) diff --git a/config.h.in b/config.h.in index b0729b09..3f426994 100644 --- a/config.h.in +++ b/config.h.in @@ -157,6 +157,9 @@ /* Define if we have _controlfp() */ #cmakedefine HAVE__CONTROLFP +/* Define if we have __control87_2() */ +#cmakedefine HAVE___CONTROL87_2 + /* Define if we have pthread_setschedparam() */ #cmakedefine HAVE_PTHREAD_SETSCHEDPARAM |