61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
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/*
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* Copyright 2022 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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#pragma once
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#include <optional>
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#include <set>
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#include <utils/Timers.h>
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#include "EventHub.h"
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#include "InputDevice.h"
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#include "accumulator/CursorButtonAccumulator.h"
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#include "accumulator/MultiTouchMotionAccumulator.h"
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#include "accumulator/TouchButtonAccumulator.h"
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#include "include/gestures.h"
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namespace android {
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// A HardwareState struct, but bundled with a vector to contain its FingerStates, so you don't have
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// to worry about where that memory is allocated.
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struct SelfContainedHardwareState {
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HardwareState state;
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std::vector<FingerState> fingers;
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};
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// Converts RawEvents into the HardwareState structs used by the gestures library.
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class HardwareStateConverter {
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public:
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HardwareStateConverter(const InputDeviceContext& deviceContext,
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MultiTouchMotionAccumulator& motionAccumulator);
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std::optional<SelfContainedHardwareState> processRawEvent(const RawEvent* event);
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void reset();
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private:
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SelfContainedHardwareState produceHardwareState(nsecs_t when);
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const InputDeviceContext& mDeviceContext;
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CursorButtonAccumulator mCursorButtonAccumulator;
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MultiTouchMotionAccumulator& mMotionAccumulator;
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TouchButtonAccumulator mTouchButtonAccumulator;
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int32_t mMscTimestamp = 0;
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};
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} // namespace android
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