diff options
Diffstat (limited to 'src/mesa/main/imports.c')
| -rw-r--r-- | src/mesa/main/imports.c | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c index ac8deeb97c9..68c7316575c 100644 --- a/src/mesa/main/imports.c +++ b/src/mesa/main/imports.c @@ -45,6 +45,7 @@ #include <stdio.h> #include <stdarg.h> #include "c99_math.h" +#include "util/rounding.h" /* for _mesa_roundeven */ #include "imports.h" #include "context.h" #include "mtypes.h" @@ -307,26 +308,6 @@ _mesa_bitcount_64(uint64_t n) #endif -/* Using C99 rounding functions for roundToEven() implementation is - * difficult, because round(), rint, and nearbyint() are affected by - * fesetenv(), which the application may have done for its own - * purposes. Mesa's IROUND macro is close to what we want, but it - * rounds away from 0 on n + 0.5. - */ -int -_mesa_round_to_even(float val) -{ - int rounded = IROUND(val); - - if (val - floor(val) == 0.5) { - if (rounded % 2 != 0) - rounded += val > 0 ? -1 : 1; - } - - return rounded; -} - - /** * Convert a 4-byte float to a 2-byte half float. * @@ -388,7 +369,7 @@ _mesa_float_to_half(float val) * or normal. */ e = 0; - m = _mesa_round_to_even((1 << 24) * fabsf(fi.f)); + m = (int) _mesa_roundevenf((1 << 24) * fabsf(fi.f)); } else if (new_exp > 15) { /* map this value to infinity */ @@ -402,7 +383,7 @@ _mesa_float_to_half(float val) * either normal or infinite. */ e = new_exp + 15; - m = _mesa_round_to_even(flt_m / (float) (1 << 13)); + m = (int) _mesa_roundevenf(flt_m / (float) (1 << 13)); } } |