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/* SoX Resampler Library Copyright (c) 2007-13 robs@users.sourceforge.net
* Licence for this file: LGPL v2.1 See LICENCE for details. */
#if !defined soxr_rint_included
#define soxr_rint_included
#include "soxr-config.h"
#if HAVE_LRINT && LONG_MAX == 2147483647L
#include <math.h>
#define FPU_RINT32
#define rint32 lrint
#elif defined __GNUC__ && (defined __i386__ || defined __x86_64__)
#define FPU_RINT32
static __inline int32_t rint32(double input) {
int32_t result;
__asm__ __volatile__("fistpl %0": "=m"(result): "t"(input): "st");
return result;
}
#elif defined __GNUC__ && defined __arm__
#define FPU_RINT32
static __inline int32_t rint32(double input) {
register int32_t result;
__asm__ __volatile__ ("ftosid %0, %P1": "=w"(result): "w"(input));
return result;
}
#elif defined _MSC_VER && defined _M_IX86 /* FIXME need solution for MSVC x64 */
#define FPU_RINT32
static __inline int32_t rint32(double input) {
int32_t result;
_asm {
fld input
fistp result
}
return result;
}
#else
#define rint32(x) (int32_t)((x) < 0? x - .5 : x + .5)
#endif
#if defined __GNUC__ && (defined __i386__ || defined __x86_64__)
#define FPU_RINT16
static __inline int16_t rint16(double input) {
int16_t result;
__asm__ __volatile__("fistps %0": "=m"(result): "t"(input): "st");
return result;
}
#elif defined _MSC_VER && defined _M_IX86 /* FIXME need solution for MSVC x64 */
#define FPU_RINT16
static __inline int16_t rint16(double input) {
int16_t result;
_asm {
fld input
fistp result
}
return result;
}
#else
#define rint16(x) (int16_t)((x) < 0? x - .5 : x + .5)
#endif
#endif
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