Floating point parameters should be rounded, not truncated Bug 20724899 Change-Id: I03f858ee3d159cfa2541afa1d8d063ca99701a4c Reviewed-on: https://swiftshader-review.googlesource.com/3964 Tested-by: Alexis Hétu <sugoi@google.com> Reviewed-by: Nicolas Capens <capn@google.com>