05f3d6e511
Tessellate and cache (where possible) shadow and round rect tessellation tasks. Change-Id: I2cfda8e11d83d51ea74af871235cf26e8f831d40
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MATHUTILS_H
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#define MATHUTILS_H
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namespace android {
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namespace uirenderer {
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class MathUtils {
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private:
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static const float gNonZeroEpsilon = 0.001f;
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public:
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/**
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* Check for floats that are close enough to zero.
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*/
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inline static bool isZero(float value) {
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return (value >= -gNonZeroEpsilon) && (value <= gNonZeroEpsilon);
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}
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inline static bool isPositive(float value) {
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return value >= gNonZeroEpsilon;
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}
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inline static bool areEqual(float valueA, float valueB) {
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return isZero(valueA - valueB);
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}
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inline static int max(int a, int b) {
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return a > b ? a : b;
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}
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inline static int min(int a, int b) {
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return a < b ? a : b;
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}
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inline static float lerp(float v1, float v2, float t) {
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return v1 + ((v2 - v1) * t);
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}
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}; // class MathUtils
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} /* namespace uirenderer */
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} /* namespace android */
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#endif /* MATHUTILS_H */
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