41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
// Copyright 2019 The MediaPipe Authors.
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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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#ifndef MEDIAPIPE_EXAMPLES_DESKTOP_AUTOFLIP_QUALITY_MATH_UTILS_H_
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#define MEDIAPIPE_EXAMPLES_DESKTOP_AUTOFLIP_QUALITY_MATH_UTILS_H_
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class MathUtil {
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public:
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// Clamps value to the range [low, high]. Requires low <= high. Returns false
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// if this check fails, otherwise returns true. Caller should first check the
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// returned boolean.
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template <typename T> // T models LessThanComparable.
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static bool Clamp(const T& low, const T& high, const T& value, T* result) {
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// Prevents errors in ordering the arguments.
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if (low > high) {
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return false;
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}
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if (high < value) {
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*result = high;
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} else if (value < low) {
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*result = low;
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} else {
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*result = value;
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}
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return true;
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}
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};
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#endif // MEDIAPIPE_EXAMPLES_DESKTOP_AUTOFLIP_QUALITY_MATH_UTILS_H_
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