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glsl: Add "built-in" functions to do ffract(fp64)

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Reviewed-by: Elie Tournier <tournier.elie@gmail.com>
This commit is contained in:
Matt Turner 2018-11-08 22:05:56 -08:00
parent 5c9a659f50
commit e213f3871f
1 changed files with 6 additions and 0 deletions
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6
src/compiler/glsl/float64.glsl
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@ -1458,3 +1458,9 @@ __fmax64(uint64_t a, uint64_t b)
if (__flt64_nonnan(a, b)) return b;
return a;
}
uint64_t
__ffract64(uint64_t a)
{
return __fadd64(a, __fneg64(__ffloor64(a)));
}