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Merge "fix [4026375] SensorManager quaternion functions can call sqrt with a negative number" into honeycomb-mr1

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This commit is contained in:
Mathias Agopian
2011-03-09 14:30:16 -08:00
committed by Android (Google) Code Review
parent c8a4b11e1f 0eab821498
commit 838aa45b99
1 changed files with 2 additions and 2 deletions
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4
core/java/android/hardware/SensorManager.java
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@@ -2051,8 +2051,8 @@ public class SensorManager
if (rv.length == 4) {
Q[0] = rv[3];
} else {
//In this case, the w component of the quaternion is known to be a positive number
Q[0] = (float)Math.sqrt(1 - rv[0]*rv[0] - rv[1]*rv[1] - rv[2]*rv[2]);
Q[0] = 1 - rv[0]*rv[0] - rv[1]*rv[1] - rv[2]*rv[2];
Q[0] = (Q[0] > 0) ? (float)Math.sqrt(Q[0]) : 0;
}
Q[1] = rv[0];
Q[2] = rv[1];