diff options
| author | Chris Robinson <[email protected]> | 2012-09-28 04:20:55 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2012-09-28 04:20:55 -0700 |
| commit | 825c5b5282f9c06b90bb3e22c967270c25bb1796 (patch) | |
| tree | 9280be474b4648b07f5a399228c1f840160938c6 /OpenAL32 | |
| parent | 25ca1793892bc6ae2587339e0bd80aef1db8c11a (diff) | |
Use lrintf to fast convert floats to ints when possible
Diffstat (limited to 'OpenAL32')
| -rw-r--r-- | OpenAL32/Include/alMain.h | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h index 24b24ca7..1449054f 100644 --- a/OpenAL32/Include/alMain.h +++ b/OpenAL32/Include/alMain.h @@ -5,6 +5,7 @@ #include <stdio.h> #include <stdarg.h> #include <assert.h> +#include <math.h> #ifdef HAVE_FENV_H #include <fenv.h> @@ -406,19 +407,15 @@ static __inline ALuint NextPowerOf2(ALuint value) * mode. */ static __inline ALint fastf2i(ALfloat f) { +#ifdef HAVE_LRINTF + return lrintf(f); +#elif defined(_MSC_VER) && defined(_M_IX86) ALint i; -#if defined(_MSC_VER) && defined(_M_IX86) __asm fld f __asm fistp i -#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) - __asm__ __volatile__("flds %1\n\t" - "fistpl %0\n\t" - : "=m" (i) - : "m" (f)); #else - i = (ALint)f; + return (ALint)f; #endif - return i; } /* Fast float-to-uint conversion. Assumes the FPU is already in round-to-zero |