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- #ifndef FPU_MODES_H
- #define FPU_MODES_H
- #ifdef HAVE_FENV_H
- #include <fenv.h>
- #endif
- typedef struct FPUCtl {
- #ifdef HAVE_FENV_H
- fenv_t flt_env;
- #ifdef _WIN32
- int round_mode;
- #endif
- #else
- int state;
- #endif
- #ifdef HAVE_SSE
- int sse_state;
- #endif
- } FPUCtl;
- void SetMixerFPUMode(FPUCtl *ctl);
- void RestoreFPUMode(const FPUCtl *ctl);
- #ifdef __GNUC__
- /* Use an alternate macro set with GCC to avoid accidental continue or break
- * statements within the mixer mode.
- */
- #define START_MIXER_MODE() __extension__({ FPUCtl _oldMode; SetMixerFPUMode(&_oldMode)
- #define END_MIXER_MODE() RestoreFPUMode(&_oldMode); })
- #else
- #define START_MIXER_MODE() do { FPUCtl _oldMode; SetMixerFPUMode(&_oldMode)
- #define END_MIXER_MODE() RestoreFPUMode(&_oldMode); } while(0)
- #endif
- #define LEAVE_MIXER_MODE() RestoreFPUMode(&_oldMode)
- #endif /* FPU_MODES_H */
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