| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "InputClassifier" |
| |
| #include "InputClassifier.h" |
| |
| #include <algorithm> |
| #include <android-base/stringprintf.h> |
| #include <cmath> |
| #include <inttypes.h> |
| #include <log/log.h> |
| #if defined(__linux__) |
| #include <pthread.h> |
| #endif |
| #include <server_configurable_flags/get_flags.h> |
| #include <unordered_set> |
| |
| #include <android/hardware/input/classifier/1.0/IInputClassifier.h> |
| |
| #define INDENT1 " " |
| #define INDENT2 " " |
| #define INDENT3 " " |
| #define INDENT4 " " |
| #define INDENT5 " " |
| |
| using android::base::StringPrintf; |
| using android::hardware::hidl_bitfield; |
| using android::hardware::hidl_vec; |
| using namespace android::hardware::input; |
| |
| namespace android { |
| |
| static constexpr bool DEBUG = false; |
| |
| // Category (=namespace) name for the input settings that are applied at boot time |
| static const char* INPUT_NATIVE_BOOT = "input_native_boot"; |
| // Feature flag name for the deep press feature |
| static const char* DEEP_PRESS_ENABLED = "deep_press_enabled"; |
| |
| //Max number of elements to store in mEvents. |
| static constexpr size_t MAX_EVENTS = 5; |
| |
| template<class K, class V> |
| static V getValueForKey(const std::unordered_map<K, V>& map, K key, V defaultValue) { |
| auto it = map.find(key); |
| if (it == map.end()) { |
| return defaultValue; |
| } |
| return it->second; |
| } |
| |
| static common::V1_0::Source getSource(uint32_t source) { |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_UNKNOWN) == |
| common::V1_0::Source::UNKNOWN, "SOURCE_UNKNOWN mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_KEYBOARD) == |
| common::V1_0::Source::KEYBOARD, "SOURCE_KEYBOARD mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_DPAD) == |
| common::V1_0::Source::DPAD, "SOURCE_DPAD mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_GAMEPAD) == |
| common::V1_0::Source::GAMEPAD, "SOURCE_GAMEPAD mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_TOUCHSCREEN) == |
| common::V1_0::Source::TOUCHSCREEN, "SOURCE_TOUCHSCREEN mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_MOUSE) == |
| common::V1_0::Source::MOUSE, "SOURCE_MOUSE mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_STYLUS) == |
| common::V1_0::Source::STYLUS, "SOURCE_STYLUS mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_BLUETOOTH_STYLUS) == |
| common::V1_0::Source::BLUETOOTH_STYLUS, "SOURCE_BLUETOOTH_STYLUS mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_TRACKBALL) == |
| common::V1_0::Source::TRACKBALL, "SOURCE_TRACKBALL mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_MOUSE_RELATIVE) == |
| common::V1_0::Source::MOUSE_RELATIVE, "SOURCE_MOUSE_RELATIVE mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_TOUCHPAD) == |
| common::V1_0::Source::TOUCHPAD, "SOURCE_TOUCHPAD mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_TOUCH_NAVIGATION) == |
| common::V1_0::Source::TOUCH_NAVIGATION, "SOURCE_TOUCH_NAVIGATION mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_JOYSTICK) == |
| common::V1_0::Source::JOYSTICK, "SOURCE_JOYSTICK mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_ROTARY_ENCODER) == |
| common::V1_0::Source::ROTARY_ENCODER, "SOURCE_ROTARY_ENCODER mismatch"); |
| static_assert(static_cast<common::V1_0::Source>(AINPUT_SOURCE_ANY) == |
| common::V1_0::Source::ANY, "SOURCE_ANY mismatch"); |
| return static_cast<common::V1_0::Source>(source); |
| } |
| |
| static common::V1_0::Action getAction(int32_t actionMasked) { |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_DOWN) == |
| common::V1_0::Action::DOWN, "ACTION_DOWN mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_UP) == |
| common::V1_0::Action::UP, "ACTION_UP mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_MOVE) == |
| common::V1_0::Action::MOVE, "ACTION_MOVE mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_CANCEL) == |
| common::V1_0::Action::CANCEL, "ACTION_CANCEL mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_OUTSIDE) == |
| common::V1_0::Action::OUTSIDE, "ACTION_OUTSIDE mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_POINTER_DOWN) == |
| common::V1_0::Action::POINTER_DOWN, "ACTION_POINTER_DOWN mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_POINTER_UP) == |
| common::V1_0::Action::POINTER_UP, "ACTION_POINTER_UP mismatch"); |
| static_assert(static_cast<common::V1_0::Action>( AMOTION_EVENT_ACTION_HOVER_MOVE) == |
| common::V1_0::Action::HOVER_MOVE, "ACTION_HOVER_MOVE mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_SCROLL) == |
| common::V1_0::Action::SCROLL, "ACTION_SCROLL mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_HOVER_ENTER) == |
| common::V1_0::Action::HOVER_ENTER, "ACTION_HOVER_ENTER mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_HOVER_EXIT) == |
| common::V1_0::Action::HOVER_EXIT, "ACTION_HOVER_EXIT mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_BUTTON_PRESS) == |
| common::V1_0::Action::BUTTON_PRESS, "ACTION_BUTTON_PRESS mismatch"); |
| static_assert(static_cast<common::V1_0::Action>(AMOTION_EVENT_ACTION_BUTTON_RELEASE) == |
| common::V1_0::Action::BUTTON_RELEASE, "ACTION_BUTTON_RELEASE mismatch"); |
| return static_cast<common::V1_0::Action>(actionMasked); |
| } |
| |
| static common::V1_0::Button getActionButton(int32_t actionButton) { |
| static_assert(static_cast<common::V1_0::Button>(0) == |
| common::V1_0::Button::NONE, "BUTTON_NONE mismatch"); |
| static_assert(static_cast<common::V1_0::Button>(AMOTION_EVENT_BUTTON_PRIMARY) == |
| common::V1_0::Button::PRIMARY, "BUTTON_PRIMARY mismatch"); |
| static_assert(static_cast<common::V1_0::Button>(AMOTION_EVENT_BUTTON_SECONDARY) == |
| common::V1_0::Button::SECONDARY, "BUTTON_SECONDARY mismatch"); |
| static_assert(static_cast<common::V1_0::Button>(AMOTION_EVENT_BUTTON_TERTIARY) == |
| common::V1_0::Button::TERTIARY, "BUTTON_TERTIARY mismatch"); |
| static_assert(static_cast<common::V1_0::Button>(AMOTION_EVENT_BUTTON_BACK) == |
| common::V1_0::Button::BACK, "BUTTON_BACK mismatch"); |
| static_assert(static_cast<common::V1_0::Button>(AMOTION_EVENT_BUTTON_FORWARD) == |
| common::V1_0::Button::FORWARD, "BUTTON_FORWARD mismatch"); |
| static_assert(static_cast<common::V1_0::Button>(AMOTION_EVENT_BUTTON_STYLUS_PRIMARY) == |
| common::V1_0::Button::STYLUS_PRIMARY, "BUTTON_STYLUS_PRIMARY mismatch"); |
| static_assert(static_cast<common::V1_0::Button>(AMOTION_EVENT_BUTTON_STYLUS_SECONDARY) == |
| common::V1_0::Button::STYLUS_SECONDARY, "BUTTON_STYLUS_SECONDARY mismatch"); |
| return static_cast<common::V1_0::Button>(actionButton); |
| } |
| |
| static hidl_bitfield<common::V1_0::Flag> getFlags(int32_t flags) { |
| static_assert(static_cast<common::V1_0::Flag>(AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED) == |
| common::V1_0::Flag::WINDOW_IS_OBSCURED); |
| static_assert(static_cast<common::V1_0::Flag>(AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE) == |
| common::V1_0::Flag::IS_GENERATED_GESTURE); |
| static_assert(static_cast<common::V1_0::Flag>(AMOTION_EVENT_FLAG_TAINTED) == |
| common::V1_0::Flag::TAINTED); |
| return static_cast<hidl_bitfield<common::V1_0::Flag>>(flags); |
| } |
| |
| static hidl_bitfield<common::V1_0::PolicyFlag> getPolicyFlags(int32_t flags) { |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_WAKE) == |
| common::V1_0::PolicyFlag::WAKE); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_VIRTUAL) == |
| common::V1_0::PolicyFlag::VIRTUAL); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_FUNCTION) == |
| common::V1_0::PolicyFlag::FUNCTION); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_GESTURE) == |
| common::V1_0::PolicyFlag::GESTURE); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_INJECTED) == |
| common::V1_0::PolicyFlag::INJECTED); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_TRUSTED) == |
| common::V1_0::PolicyFlag::TRUSTED); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_FILTERED) == |
| common::V1_0::PolicyFlag::FILTERED); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_DISABLE_KEY_REPEAT) == |
| common::V1_0::PolicyFlag::DISABLE_KEY_REPEAT); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_INTERACTIVE) == |
| common::V1_0::PolicyFlag::INTERACTIVE); |
| static_assert(static_cast<common::V1_0::PolicyFlag>(POLICY_FLAG_PASS_TO_USER) == |
| common::V1_0::PolicyFlag::PASS_TO_USER); |
| return static_cast<hidl_bitfield<common::V1_0::PolicyFlag>>(flags); |
| } |
| |
| static hidl_bitfield<common::V1_0::EdgeFlag> getEdgeFlags(int32_t flags) { |
| static_assert(static_cast<common::V1_0::EdgeFlag>(AMOTION_EVENT_EDGE_FLAG_NONE) == |
| common::V1_0::EdgeFlag::NONE); |
| static_assert(static_cast<common::V1_0::EdgeFlag>(AMOTION_EVENT_EDGE_FLAG_TOP) == |
| common::V1_0::EdgeFlag::TOP); |
| static_assert(static_cast<common::V1_0::EdgeFlag>(AMOTION_EVENT_EDGE_FLAG_BOTTOM) == |
| common::V1_0::EdgeFlag::BOTTOM); |
| static_assert(static_cast<common::V1_0::EdgeFlag>(AMOTION_EVENT_EDGE_FLAG_LEFT) == |
| common::V1_0::EdgeFlag::LEFT); |
| static_assert(static_cast<common::V1_0::EdgeFlag>(AMOTION_EVENT_EDGE_FLAG_RIGHT) == |
| common::V1_0::EdgeFlag::RIGHT); |
| return static_cast<hidl_bitfield<common::V1_0::EdgeFlag>>(flags); |
| } |
| |
| static hidl_bitfield<common::V1_0::Meta> getMetastate(int32_t state) { |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_NONE) == |
| common::V1_0::Meta::NONE); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_ALT_ON) == |
| common::V1_0::Meta::ALT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_ALT_LEFT_ON) == |
| common::V1_0::Meta::ALT_LEFT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_ALT_RIGHT_ON) == |
| common::V1_0::Meta::ALT_RIGHT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_SHIFT_ON) == |
| common::V1_0::Meta::SHIFT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_SHIFT_LEFT_ON) == |
| common::V1_0::Meta::SHIFT_LEFT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_SHIFT_RIGHT_ON) == |
| common::V1_0::Meta::SHIFT_RIGHT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_SYM_ON) == |
| common::V1_0::Meta::SYM_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_FUNCTION_ON) == |
| common::V1_0::Meta::FUNCTION_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_CTRL_ON) == |
| common::V1_0::Meta::CTRL_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_CTRL_LEFT_ON) == |
| common::V1_0::Meta::CTRL_LEFT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_CTRL_RIGHT_ON) == |
| common::V1_0::Meta::CTRL_RIGHT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_META_ON) == |
| common::V1_0::Meta::META_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_META_LEFT_ON) == |
| common::V1_0::Meta::META_LEFT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_META_RIGHT_ON) == |
| common::V1_0::Meta::META_RIGHT_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_CAPS_LOCK_ON) == |
| common::V1_0::Meta::CAPS_LOCK_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_NUM_LOCK_ON) == |
| common::V1_0::Meta::NUM_LOCK_ON); |
| static_assert(static_cast<common::V1_0::Meta>(AMETA_SCROLL_LOCK_ON) == |
| common::V1_0::Meta::SCROLL_LOCK_ON); |
| return static_cast<hidl_bitfield<common::V1_0::Meta>>(state); |
| } |
| |
| static hidl_bitfield<common::V1_0::Button> getButtonState(int32_t buttonState) { |
| // No need for static_assert here. |
| // The button values have already been asserted in getActionButton(..) above |
| return static_cast<hidl_bitfield<common::V1_0::Button>>(buttonState); |
| } |
| |
| static common::V1_0::ToolType getToolType(int32_t toolType) { |
| static_assert(static_cast<common::V1_0::ToolType>(AMOTION_EVENT_TOOL_TYPE_UNKNOWN) == |
| common::V1_0::ToolType::UNKNOWN); |
| static_assert(static_cast<common::V1_0::ToolType>(AMOTION_EVENT_TOOL_TYPE_FINGER) == |
| common::V1_0::ToolType::FINGER); |
| static_assert(static_cast<common::V1_0::ToolType>(AMOTION_EVENT_TOOL_TYPE_STYLUS) == |
| common::V1_0::ToolType::STYLUS); |
| static_assert(static_cast<common::V1_0::ToolType>(AMOTION_EVENT_TOOL_TYPE_MOUSE) == |
| common::V1_0::ToolType::MOUSE); |
| static_assert(static_cast<common::V1_0::ToolType>(AMOTION_EVENT_TOOL_TYPE_ERASER) == |
| common::V1_0::ToolType::ERASER); |
| return static_cast<common::V1_0::ToolType>(toolType); |
| } |
| |
| static common::V1_0::Axis getAxis(uint64_t axis) { |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_X) == |
| common::V1_0::Axis::X); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_Y) == |
| common::V1_0::Axis::Y); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_PRESSURE) == |
| common::V1_0::Axis::PRESSURE); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_SIZE) == |
| common::V1_0::Axis::SIZE); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_TOUCH_MAJOR) == |
| common::V1_0::Axis::TOUCH_MAJOR); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_TOUCH_MINOR) == |
| common::V1_0::Axis::TOUCH_MINOR); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_TOOL_MAJOR) == |
| common::V1_0::Axis::TOOL_MAJOR); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_TOOL_MINOR) == |
| common::V1_0::Axis::TOOL_MINOR); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_ORIENTATION) == |
| common::V1_0::Axis::ORIENTATION); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_VSCROLL) == |
| common::V1_0::Axis::VSCROLL); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_HSCROLL) == |
| common::V1_0::Axis::HSCROLL); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_Z) == |
| common::V1_0::Axis::Z); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_RX) == |
| common::V1_0::Axis::RX); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_RY) == |
| common::V1_0::Axis::RY); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_RZ) == |
| common::V1_0::Axis::RZ); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_HAT_X) == |
| common::V1_0::Axis::HAT_X); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_HAT_Y) == |
| common::V1_0::Axis::HAT_Y); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_LTRIGGER) == |
| common::V1_0::Axis::LTRIGGER); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_RTRIGGER) == |
| common::V1_0::Axis::RTRIGGER); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_THROTTLE) == |
| common::V1_0::Axis::THROTTLE); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_RUDDER) == |
| common::V1_0::Axis::RUDDER); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_WHEEL) == |
| common::V1_0::Axis::WHEEL); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GAS) == |
| common::V1_0::Axis::GAS); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_BRAKE) == |
| common::V1_0::Axis::BRAKE); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_DISTANCE) == |
| common::V1_0::Axis::DISTANCE); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_TILT) == |
| common::V1_0::Axis::TILT); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_SCROLL) == |
| common::V1_0::Axis::SCROLL); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_RELATIVE_X) == |
| common::V1_0::Axis::RELATIVE_X); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_RELATIVE_Y) == |
| common::V1_0::Axis::RELATIVE_Y); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_1) == |
| common::V1_0::Axis::GENERIC_1); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_2) == |
| common::V1_0::Axis::GENERIC_2); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_3) == |
| common::V1_0::Axis::GENERIC_3); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_4) == |
| common::V1_0::Axis::GENERIC_4); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_5) == |
| common::V1_0::Axis::GENERIC_5); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_6) == |
| common::V1_0::Axis::GENERIC_6); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_7) == |
| common::V1_0::Axis::GENERIC_7); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_8) == |
| common::V1_0::Axis::GENERIC_8); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_9) == |
| common::V1_0::Axis::GENERIC_9); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_10) == |
| common::V1_0::Axis::GENERIC_10); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_11) == |
| common::V1_0::Axis::GENERIC_11); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_12) == |
| common::V1_0::Axis::GENERIC_12); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_13) == |
| common::V1_0::Axis::GENERIC_13); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_14) == |
| common::V1_0::Axis::GENERIC_14); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_15) == |
| common::V1_0::Axis::GENERIC_15); |
| static_assert(static_cast<common::V1_0::Axis>(AMOTION_EVENT_AXIS_GENERIC_16) == |
| common::V1_0::Axis::GENERIC_16); |
| return static_cast<common::V1_0::Axis>(axis); |
| } |
| |
| static common::V1_0::VideoFrame getHalVideoFrame(const TouchVideoFrame& frame) { |
| common::V1_0::VideoFrame out; |
| out.width = frame.getWidth(); |
| out.height = frame.getHeight(); |
| out.data = frame.getData(); |
| struct timeval timestamp = frame.getTimestamp(); |
| out.timestamp = seconds_to_nanoseconds(timestamp.tv_sec) + |
| microseconds_to_nanoseconds(timestamp.tv_usec); |
| return out; |
| } |
| |
| static std::vector<common::V1_0::VideoFrame> convertVideoFrames( |
| const std::vector<TouchVideoFrame>& frames) { |
| std::vector<common::V1_0::VideoFrame> out; |
| for (const TouchVideoFrame& frame : frames) { |
| out.push_back(getHalVideoFrame(frame)); |
| } |
| return out; |
| } |
| |
| static uint8_t getActionIndex(int32_t action) { |
| return (action & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >> |
| AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT; |
| } |
| |
| static void getHidlPropertiesAndCoords(const NotifyMotionArgs& args, |
| std::vector<common::V1_0::PointerProperties>* outPointerProperties, |
| std::vector<common::V1_0::PointerCoords>* outPointerCoords) { |
| outPointerProperties->reserve(args.pointerCount); |
| outPointerCoords->reserve(args.pointerCount); |
| for (size_t i = 0; i < args.pointerCount; i++) { |
| common::V1_0::PointerProperties properties; |
| properties.id = args.pointerProperties[i].id; |
| properties.toolType = getToolType(args.pointerProperties[i].toolType); |
| outPointerProperties->push_back(properties); |
| |
| common::V1_0::PointerCoords coords; |
| BitSet64 bits (args.pointerCoords[i].bits); |
| std::vector<float> values; |
| size_t index = 0; |
| while (!bits.isEmpty()) { |
| uint32_t axis = bits.clearFirstMarkedBit(); |
| coords.bits |= 1 << static_cast<uint64_t>(getAxis(axis)); |
| float value = args.pointerCoords[i].values[index++]; |
| values.push_back(value); |
| } |
| coords.values = values; |
| outPointerCoords->push_back(coords); |
| } |
| } |
| |
| static common::V1_0::MotionEvent getMotionEvent(const NotifyMotionArgs& args) { |
| common::V1_0::MotionEvent event; |
| event.deviceId = args.deviceId; |
| event.source = getSource(args.source); |
| event.displayId = args.displayId; |
| event.downTime = args.downTime; |
| event.eventTime = args.eventTime; |
| event.action = getAction(args.action & AMOTION_EVENT_ACTION_MASK); |
| event.actionIndex = getActionIndex(args.action); |
| event.actionButton = getActionButton(args.actionButton); |
| event.flags = getFlags(args.flags); |
| event.policyFlags = getPolicyFlags(args.policyFlags); |
| event.edgeFlags = getEdgeFlags(args.edgeFlags); |
| event.metaState = getMetastate(args.metaState); |
| event.buttonState = getButtonState(args.buttonState); |
| event.xPrecision = args.xPrecision; |
| event.yPrecision = args.yPrecision; |
| |
| std::vector<common::V1_0::PointerProperties> pointerProperties; |
| std::vector<common::V1_0::PointerCoords> pointerCoords; |
| getHidlPropertiesAndCoords(args, /*out*/&pointerProperties, /*out*/&pointerCoords); |
| event.pointerProperties = pointerProperties; |
| event.pointerCoords = pointerCoords; |
| |
| event.deviceTimestamp = args.deviceTimestamp; |
| event.frames = convertVideoFrames(args.videoFrames); |
| |
| return event; |
| } |
| |
| static MotionClassification getMotionClassification(common::V1_0::Classification classification) { |
| static_assert(MotionClassification::NONE == |
| static_cast<MotionClassification>(common::V1_0::Classification::NONE)); |
| static_assert(MotionClassification::AMBIGUOUS_GESTURE == |
| static_cast<MotionClassification>(common::V1_0::Classification::AMBIGUOUS_GESTURE)); |
| static_assert(MotionClassification::DEEP_PRESS == |
| static_cast<MotionClassification>(common::V1_0::Classification::DEEP_PRESS)); |
| return static_cast<MotionClassification>(classification); |
| } |
| |
| static bool isTouchEvent(const NotifyMotionArgs& args) { |
| return args.source == AINPUT_SOURCE_TOUCHPAD || args.source == AINPUT_SOURCE_TOUCHSCREEN; |
| } |
| |
| // Check if the "deep touch" feature is on. |
| static bool deepPressEnabled() { |
| std::string flag_value = server_configurable_flags::GetServerConfigurableFlag( |
| INPUT_NATIVE_BOOT, DEEP_PRESS_ENABLED, "true"); |
| std::transform(flag_value.begin(), flag_value.end(), flag_value.begin(), ::tolower); |
| if (flag_value == "1" || flag_value == "true") { |
| ALOGI("Deep press feature enabled."); |
| return true; |
| } |
| ALOGI("Deep press feature is not enabled."); |
| return false; |
| } |
| |
| |
| // --- ClassifierEvent --- |
| |
| ClassifierEvent::ClassifierEvent(std::unique_ptr<NotifyMotionArgs> args) : |
| type(ClassifierEventType::MOTION), args(std::move(args)) { }; |
| ClassifierEvent::ClassifierEvent(std::unique_ptr<NotifyDeviceResetArgs> args) : |
| type(ClassifierEventType::DEVICE_RESET), args(std::move(args)) { }; |
| ClassifierEvent::ClassifierEvent(ClassifierEventType type, std::unique_ptr<NotifyArgs> args) : |
| type(type), args(std::move(args)) { }; |
| |
| ClassifierEvent::ClassifierEvent(ClassifierEvent&& other) : |
| type(other.type), args(std::move(other.args)) { }; |
| |
| ClassifierEvent& ClassifierEvent::operator=(ClassifierEvent&& other) { |
| type = other.type; |
| args = std::move(other.args); |
| return *this; |
| } |
| |
| ClassifierEvent ClassifierEvent::createHalResetEvent() { |
| return ClassifierEvent(ClassifierEventType::HAL_RESET, nullptr); |
| } |
| |
| ClassifierEvent ClassifierEvent::createExitEvent() { |
| return ClassifierEvent(ClassifierEventType::EXIT, nullptr); |
| } |
| |
| std::optional<int32_t> ClassifierEvent::getDeviceId() const { |
| switch (type) { |
| case ClassifierEventType::MOTION: { |
| NotifyMotionArgs* motionArgs = static_cast<NotifyMotionArgs*>(args.get()); |
| return motionArgs->deviceId; |
| } |
| case ClassifierEventType::DEVICE_RESET: { |
| NotifyDeviceResetArgs* deviceResetArgs = |
| static_cast<NotifyDeviceResetArgs*>(args.get()); |
| return deviceResetArgs->deviceId; |
| } |
| case ClassifierEventType::HAL_RESET: { |
| return std::nullopt; |
| } |
| case ClassifierEventType::EXIT: { |
| return std::nullopt; |
| } |
| } |
| } |
| |
| // --- MotionClassifier --- |
| |
| MotionClassifier::MotionClassifier( |
| sp<android::hardware::input::classifier::V1_0::IInputClassifier> service) : |
| mEvents(MAX_EVENTS), mService(service) { |
| mHalThread = std::thread(&MotionClassifier::callInputClassifierHal, this); |
| #if defined(__linux__) |
| // Set the thread name for debugging |
| pthread_setname_np(mHalThread.native_handle(), "InputClassifier"); |
| #endif |
| // Under normal operation, we do not need to reset the HAL here. But in the case where system |
| // crashed, but HAL didn't, we may be connecting to an existing HAL process that might already |
| // have received events in the past. That means, that HAL could be in an inconsistent state |
| // once it receives events from the newly created MotionClassifier. |
| mEvents.push(ClassifierEvent::createHalResetEvent()); |
| } |
| |
| MotionClassifier::~MotionClassifier() { |
| requestExit(); |
| mHalThread.join(); |
| } |
| |
| void MotionClassifier::ensureHalThread(const char* function) { |
| if (DEBUG) { |
| if (std::this_thread::get_id() != mHalThread.get_id()) { |
| ALOGE("Function %s should only be called from InputClassifier thread", function); |
| } |
| } |
| } |
| |
| /** |
| * Obtain the classification from the HAL for a given MotionEvent. |
| * Should only be called from the InputClassifier thread (mHalThread). |
| * Should not be called from the thread that notifyMotion runs on. |
| * |
| * There is no way to provide a timeout for a HAL call. So if the HAL takes too long |
| * to return a classification, this would directly impact the touch latency. |
| * To remove any possibility of negatively affecting the touch latency, the HAL |
| * is called from a dedicated thread. |
| */ |
| void MotionClassifier::callInputClassifierHal() { |
| ensureHalThread(__func__); |
| while (true) { |
| ClassifierEvent event = mEvents.pop(); |
| switch (event.type) { |
| case ClassifierEventType::MOTION: { |
| NotifyMotionArgs* motionArgs = static_cast<NotifyMotionArgs*>(event.args.get()); |
| common::V1_0::MotionEvent motionEvent = getMotionEvent(*motionArgs); |
| common::V1_0::Classification halClassification = mService->classify(motionEvent); |
| updateClassification(motionArgs->deviceId, motionArgs->eventTime, |
| getMotionClassification(halClassification)); |
| break; |
| } |
| case ClassifierEventType::DEVICE_RESET: { |
| const int32_t deviceId = *(event.getDeviceId()); |
| mService->resetDevice(deviceId); |
| setClassification(deviceId, MotionClassification::NONE); |
| break; |
| } |
| case ClassifierEventType::HAL_RESET: { |
| mService->reset(); |
| clearClassifications(); |
| break; |
| } |
| case ClassifierEventType::EXIT: { |
| clearClassifications(); |
| return; |
| } |
| } |
| } |
| } |
| |
| void MotionClassifier::requestExit() { |
| reset(); |
| mEvents.push(ClassifierEvent::createExitEvent()); |
| } |
| |
| void MotionClassifier::updateClassification(int32_t deviceId, nsecs_t eventTime, |
| MotionClassification classification) { |
| std::scoped_lock lock(mLock); |
| const nsecs_t lastDownTime = getValueForKey(mLastDownTimes, deviceId, static_cast<nsecs_t>(0)); |
| if (eventTime < lastDownTime) { |
| // HAL just finished processing an event that belonged to an earlier gesture, |
| // but new gesture is already in progress. Drop this classification. |
| ALOGW("Received late classification. Late by at least %" PRId64 " ms.", |
| nanoseconds_to_milliseconds(lastDownTime - eventTime)); |
| return; |
| } |
| mClassifications[deviceId] = classification; |
| } |
| |
| void MotionClassifier::setClassification(int32_t deviceId, MotionClassification classification) { |
| std::scoped_lock lock(mLock); |
| mClassifications[deviceId] = classification; |
| } |
| |
| void MotionClassifier::clearClassifications() { |
| std::scoped_lock lock(mLock); |
| mClassifications.clear(); |
| } |
| |
| MotionClassification MotionClassifier::getClassification(int32_t deviceId) { |
| std::scoped_lock lock(mLock); |
| return getValueForKey(mClassifications, deviceId, MotionClassification::NONE); |
| } |
| |
| void MotionClassifier::updateLastDownTime(int32_t deviceId, nsecs_t downTime) { |
| std::scoped_lock lock(mLock); |
| mLastDownTimes[deviceId] = downTime; |
| mClassifications[deviceId] = MotionClassification::NONE; |
| } |
| |
| MotionClassification MotionClassifier::classify(const NotifyMotionArgs& args) { |
| if (!mService) { |
| // If HAL is not present, do nothing |
| return MotionClassification::NONE; |
| } |
| if ((args.action & AMOTION_EVENT_ACTION_MASK) == AMOTION_EVENT_ACTION_DOWN) { |
| updateLastDownTime(args.deviceId, args.downTime); |
| } |
| |
| ClassifierEvent event(std::make_unique<NotifyMotionArgs>(args)); |
| bool elementAdded = mEvents.push(std::move(event)); |
| if (!elementAdded) { |
| // Queue should not ever overfill. Suspect HAL is slow. |
| ALOGE("Dropped element with eventTime %" PRIu64, args.eventTime); |
| reset(); |
| return MotionClassification::NONE; |
| } |
| return getClassification(args.deviceId); |
| } |
| |
| void MotionClassifier::reset() { |
| mEvents.clear(); |
| mEvents.push(ClassifierEvent::createHalResetEvent()); |
| } |
| |
| /** |
| * Per-device reset. Clear the outstanding events that are going to be sent to HAL. |
| * Request InputClassifier thread to call resetDevice for this particular device. |
| */ |
| void MotionClassifier::reset(const NotifyDeviceResetArgs& args) { |
| int32_t deviceId = args.deviceId; |
| // Clear the pending events right away, to avoid unnecessary work done by the HAL. |
| mEvents.erase([deviceId](const ClassifierEvent& event) { |
| std::optional<int32_t> eventDeviceId = event.getDeviceId(); |
| return eventDeviceId && (*eventDeviceId == deviceId); |
| }); |
| mEvents.push(std::make_unique<NotifyDeviceResetArgs>(args)); |
| } |
| |
| void MotionClassifier::dump(std::string& dump) { |
| std::scoped_lock lock(mLock); |
| std::string serviceStatus = mService->ping().isOk() ? "running" : " not responding"; |
| dump += StringPrintf(INDENT2 "mService status: %s\n", serviceStatus.c_str()); |
| dump += StringPrintf(INDENT2 "mEvents: %zu element(s) (max=%zu)\n", |
| mEvents.size(), MAX_EVENTS); |
| dump += INDENT2 "mClassifications, mLastDownTimes:\n"; |
| dump += INDENT3 "Device Id\tClassification\tLast down time"; |
| // Combine mClassifications and mLastDownTimes into a single table. |
| // Create a superset of device ids. |
| std::unordered_set<int32_t> deviceIds; |
| std::for_each(mClassifications.begin(), mClassifications.end(), |
| [&deviceIds](auto pair){ deviceIds.insert(pair.first); }); |
| std::for_each(mLastDownTimes.begin(), mLastDownTimes.end(), |
| [&deviceIds](auto pair){ deviceIds.insert(pair.first); }); |
| for(int32_t deviceId : deviceIds) { |
| const MotionClassification classification = |
| getValueForKey(mClassifications, deviceId, MotionClassification::NONE); |
| const nsecs_t downTime = getValueForKey(mLastDownTimes, deviceId, static_cast<nsecs_t>(0)); |
| dump += StringPrintf("\n" INDENT4 "%" PRId32 "\t%s\t%" PRId64, |
| deviceId, motionClassificationToString(classification), downTime); |
| } |
| } |
| |
| // --- InputClassifier --- |
| |
| InputClassifier::InputClassifier(const sp<InputListenerInterface>& listener) : |
| mListener(listener) { |
| if (deepPressEnabled()) { |
| sp<android::hardware::input::classifier::V1_0::IInputClassifier> service = |
| classifier::V1_0::IInputClassifier::getService(); |
| if (service) { |
| mMotionClassifier = std::make_unique<MotionClassifier>(service); |
| } else { |
| ALOGI("Could not obtain InputClassifier HAL"); |
| } |
| } |
| }; |
| |
| void InputClassifier::notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args) { |
| // pass through |
| mListener->notifyConfigurationChanged(args); |
| } |
| |
| void InputClassifier::notifyKey(const NotifyKeyArgs* args) { |
| // pass through |
| mListener->notifyKey(args); |
| } |
| |
| void InputClassifier::notifyMotion(const NotifyMotionArgs* args) { |
| NotifyMotionArgs copyArgs = NotifyMotionArgs(*args); |
| if (mMotionClassifier && isTouchEvent(*args)) { |
| // We only cover touch events, for now. |
| copyArgs.classification = mMotionClassifier->classify(copyArgs); |
| } |
| mListener->notifyMotion(©Args); |
| } |
| |
| void InputClassifier::notifySwitch(const NotifySwitchArgs* args) { |
| // pass through |
| mListener->notifySwitch(args); |
| } |
| |
| void InputClassifier::notifyDeviceReset(const NotifyDeviceResetArgs* args) { |
| if (mMotionClassifier) { |
| mMotionClassifier->reset(*args); |
| } |
| // continue to next stage |
| mListener->notifyDeviceReset(args); |
| } |
| |
| void InputClassifier::dump(std::string& dump) { |
| dump += "Input Classifier State:\n"; |
| |
| dump += INDENT1 "Motion Classifier:\n"; |
| if (mMotionClassifier) { |
| mMotionClassifier->dump(dump); |
| } else { |
| dump += INDENT2 "<nullptr>"; |
| } |
| dump += "\n"; |
| } |
| |
| } // namespace android |