Chris Craik e0bb87d4bd Fix translationZ matrix computation
bug:14259972

Ensure that translationZ is applied for true3dTransform property
transformations, even if the node doesn't have any other
transformation properties set.

Additionally, use fuzzy compare for translationZ, similar to
rotationX/Y, since they're expenive to leave set in rounding error
cases.

Change-Id: Idafa4423cc7751a8f433237b1f576aa7abb74f6e
2014-04-23 13:23:30 -07:00

38 lines
1.1 KiB
C++

/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MATHUTILS_H
#define MATHUTILS_H
namespace android {
namespace uirenderer {
class MathUtils {
private:
static const float gNonZeroEpsilon = 0.001f;
public:
/**
* Check for floats that are close enough to zero.
*/
inline static bool isZero(float value) {
return (value >= -gNonZeroEpsilon) && (value <= gNonZeroEpsilon);
}
}; // class MathUtils
} /* namespace uirenderer */
} /* namespace android */
#endif /* RENDERNODE_H */