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76 lines
1.9 KiB
76 lines
1.9 KiB
/*
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* Copyright (C) 2020 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 _VIBRATION_ELEMENT_H
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#define _VIBRATION_ELEMENT_H
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#include <array>
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#include <chrono>
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#include <cstdint>
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#include <string>
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#include <vector>
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namespace android {
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// evdev FF_RUMBLE effect only supports two channels of vibration.
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constexpr size_t CHANNEL_SIZE = 2;
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/*
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* Describes a rumble effect
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*/
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struct VibrationElement {
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std::chrono::milliseconds duration;
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// Channel amplitude range 0-255.
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std::vector<std::pair<int32_t /*vibratorId*/, uint8_t /*amplitude*/>> channels;
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explicit VibrationElement(size_t channelNum);
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VibrationElement(const VibrationElement& other);
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bool operator==(const VibrationElement& other) const;
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bool operator!=(const VibrationElement& other) const;
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void addChannel(int32_t vibratorId, uint8_t amplitude);
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const std::string toString() const;
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uint16_t getMagnitude(int32_t vibratorId) const;
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bool isOn() const;
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};
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/*
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* Describes a sequence of rumble effect
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*/
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struct VibrationSequence {
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// Pattern of vibration elements
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std::vector<VibrationElement> pattern;
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explicit VibrationSequence(size_t length);
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void operator=(const VibrationSequence& other);
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bool operator==(const VibrationSequence& other) const;
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void addElement(VibrationElement element);
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const std::string toString() const;
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};
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} // namespace android
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#endif // _VIBRATION_ELEMENT_H
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