1 /* 2 * Copyright 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <bitset> 20 #include <list> 21 #include <map> 22 #include <set> 23 #include <string> 24 #include <utility> 25 #include <vector> 26 27 #include <android/input.h> 28 #include <input/Input.h> 29 #include <utils/Timers.h> 30 31 #include "EventHub.h" 32 #include "InputDevice.h" 33 #include "accumulator/CursorButtonAccumulator.h" 34 #include "accumulator/MultiTouchMotionAccumulator.h" 35 #include "accumulator/TouchButtonAccumulator.h" 36 37 namespace android { 38 39 class CapturedTouchpadEventConverter { 40 public: 41 explicit CapturedTouchpadEventConverter(InputReaderContext& readerContext, 42 const InputDeviceContext& deviceContext, 43 MultiTouchMotionAccumulator& motionAccumulator, 44 int32_t deviceId); 45 std::string dump() const; 46 void populateMotionRanges(InputDeviceInfo& info) const; 47 void reset(); 48 [[nodiscard]] std::list<NotifyArgs> process(const RawEvent& rawEvent); 49 50 private: 51 void tryAddRawMotionRange(InputDeviceInfo& deviceInfo, int32_t androidAxis, 52 int32_t evdevAxis) const; 53 void tryAddRawMotionRangeWithRelative(InputDeviceInfo& deviceInfo, int32_t androidAxis, 54 int32_t androidRelativeAxis, int32_t evdevAxis) const; 55 [[nodiscard]] std::list<NotifyArgs> sync(nsecs_t when, nsecs_t readTime); 56 [[nodiscard]] NotifyMotionArgs makeMotionArgs(nsecs_t when, nsecs_t readTime, int32_t action, 57 const std::vector<PointerCoords>& coords, 58 const std::vector<PointerProperties>& properties, 59 int32_t actionButton = 0, int32_t flags = 0); 60 PointerCoords makePointerCoordsForSlot(size_t slotNumber); 61 int32_t allocatePointerIdToSlot(size_t slotNumber); 62 void freePointerIdForSlot(size_t slotNumber); 63 64 const int32_t mDeviceId; 65 InputReaderContext& mReaderContext; 66 const InputDeviceContext& mDeviceContext; 67 CursorButtonAccumulator mCursorButtonAccumulator; 68 MultiTouchMotionAccumulator& mMotionAccumulator; 69 70 float mOrientationScale = 0; 71 float mPressureScale = 1; 72 float mSizeScale = 0; 73 bool mHasTouchMajor; 74 const bool mHasTouchMinor; 75 bool mHasToolMajor; 76 const bool mHasToolMinor; 77 nsecs_t mDownTime = 0; 78 uint32_t mButtonState = 0; 79 80 std::bitset<MAX_POINTER_ID + 1> mPointerIdsInUse; 81 std::map<size_t, int32_t> mPointerIdForSlotNumber; 82 std::map<size_t, std::pair<float, float>> mPreviousCoordsForSlotNumber; 83 }; 84 85 } // namespace android 86