40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
/*
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* Copyright (C) 2019 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 ANDROID_HARDWARE_VIBRATOR_TEST_UTILS_H
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#define ANDROID_HARDWARE_VIBRATOR_TEST_UTILS_H
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#include <cmath>
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#include "types.h"
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static inline EffectScale toScale(float target, float maximum) {
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return std::round((-20 * std::log10(target / static_cast<float>(maximum))) / 0.125f);
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}
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static inline EffectScale levelToScale(EffectLevel level) {
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return toScale(level, 100);
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}
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static inline EffectScale amplitudeToScale(EffectAmplitude amplitude) {
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return toScale(amplitude, 1.0f);
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}
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static inline uint32_t msToCycles(EffectDuration ms) {
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return ms * 48;
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}
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#endif // ANDROID_HARDWARE_VIBRATOR_TEST_UTILS_H
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