tree 32553696e76e3ca1757a6c2d8862bb57fe3841f2
parent e6734b6b1247577ebdeacff441f6ab8cfe25a1e3
author Lazar Trsic <Lazar.Trsic@imgtec.com> 1435052809 +0200
committer Nikola Veljkovic <Nikola.Veljkovic@imgtec.com> 1435223515 +0200

Limit dotProduct value to 1.0f, so acosf would not return NaN.

Due to precision loss of float math, we sometimes get 1.000001f for
dotProduct. This causes NaN result from acosf() and floor() funcs.

At the moment, this does not cause any problems on ARM, as casting
NaN to int results in 0. On mips however (possibly on x86), such cast
gives INT_MAX, so crash occurs when trying to use the resulting value.

Change-Id: I8e0285a0306a65b8469d9f4885c19665066fc4c8