50de30a523
Target identification is now fully native. Fixed a couple of minor issues related to input injection. Native input enabled by default, can be disabled by setting WindowManagerPolicy.ENABLE_NATIVE_INPUT_DISPATCH to false. Change-Id: I7edf66ed3e987cc9306ad4743ac57a116af452ff
1999 lines
72 KiB
C++
1999 lines
72 KiB
C++
//
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// Copyright 2010 The Android Open Source Project
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//
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// The input reader.
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//
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#define LOG_TAG "InputReader"
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//#define LOG_NDEBUG 0
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// Log debug messages for each raw event received from the EventHub.
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#define DEBUG_RAW_EVENTS 0
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// Log debug messages about touch screen filtering hacks.
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#define DEBUG_HACKS 0
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// Log debug messages about virtual key processing.
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#define DEBUG_VIRTUAL_KEYS 0
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// Log debug messages about pointers.
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#define DEBUG_POINTERS 0
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// Log debug messages about pointer assignment calculations.
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#define DEBUG_POINTER_ASSIGNMENT 0
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#include <cutils/log.h>
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#include <ui/InputReader.h>
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#include <stddef.h>
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#include <unistd.h>
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#include <errno.h>
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#include <limits.h>
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/** Amount that trackball needs to move in order to generate a key event. */
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#define TRACKBALL_MOVEMENT_THRESHOLD 6
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/* Slop distance for jumpy pointer detection.
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* The vertical range of the screen divided by this is our epsilon value. */
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#define JUMPY_EPSILON_DIVISOR 212
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/* Number of jumpy points to drop for touchscreens that need it. */
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#define JUMPY_TRANSITION_DROPS 3
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#define JUMPY_DROP_LIMIT 3
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/* Maximum squared distance for averaging.
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* If moving farther than this, turn of averaging to avoid lag in response. */
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#define AVERAGING_DISTANCE_LIMIT (75 * 75)
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namespace android {
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// --- Static Functions ---
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template<typename T>
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inline static T abs(const T& value) {
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return value < 0 ? - value : value;
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}
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template<typename T>
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inline static T min(const T& a, const T& b) {
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return a < b ? a : b;
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}
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template<typename T>
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inline static void swap(T& a, T& b) {
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T temp = a;
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a = b;
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b = temp;
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}
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int32_t updateMetaState(int32_t keyCode, bool down, int32_t oldMetaState) {
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int32_t mask;
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switch (keyCode) {
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case KEYCODE_ALT_LEFT:
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mask = META_ALT_LEFT_ON;
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break;
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case KEYCODE_ALT_RIGHT:
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mask = META_ALT_RIGHT_ON;
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break;
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case KEYCODE_SHIFT_LEFT:
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mask = META_SHIFT_LEFT_ON;
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break;
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case KEYCODE_SHIFT_RIGHT:
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mask = META_SHIFT_RIGHT_ON;
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break;
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case KEYCODE_SYM:
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mask = META_SYM_ON;
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break;
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default:
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return oldMetaState;
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}
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int32_t newMetaState = down ? oldMetaState | mask : oldMetaState & ~ mask
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& ~ (META_ALT_ON | META_SHIFT_ON);
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if (newMetaState & (META_ALT_LEFT_ON | META_ALT_RIGHT_ON)) {
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newMetaState |= META_ALT_ON;
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}
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if (newMetaState & (META_SHIFT_LEFT_ON | META_SHIFT_RIGHT_ON)) {
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newMetaState |= META_SHIFT_ON;
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}
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return newMetaState;
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}
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static const int32_t keyCodeRotationMap[][4] = {
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// key codes enumerated counter-clockwise with the original (unrotated) key first
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// no rotation, 90 degree rotation, 180 degree rotation, 270 degree rotation
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{ KEYCODE_DPAD_DOWN, KEYCODE_DPAD_RIGHT, KEYCODE_DPAD_UP, KEYCODE_DPAD_LEFT },
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{ KEYCODE_DPAD_RIGHT, KEYCODE_DPAD_UP, KEYCODE_DPAD_LEFT, KEYCODE_DPAD_DOWN },
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{ KEYCODE_DPAD_UP, KEYCODE_DPAD_LEFT, KEYCODE_DPAD_DOWN, KEYCODE_DPAD_RIGHT },
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{ KEYCODE_DPAD_LEFT, KEYCODE_DPAD_DOWN, KEYCODE_DPAD_RIGHT, KEYCODE_DPAD_UP },
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};
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static const int keyCodeRotationMapSize =
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sizeof(keyCodeRotationMap) / sizeof(keyCodeRotationMap[0]);
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int32_t rotateKeyCode(int32_t keyCode, int32_t orientation) {
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if (orientation != InputReaderPolicyInterface::ROTATION_0) {
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for (int i = 0; i < keyCodeRotationMapSize; i++) {
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if (keyCode == keyCodeRotationMap[i][0]) {
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return keyCodeRotationMap[i][orientation];
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}
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}
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}
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return keyCode;
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}
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// --- InputDevice ---
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InputDevice::InputDevice(int32_t id, uint32_t classes, String8 name) :
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id(id), classes(classes), name(name), ignored(false) {
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}
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void InputDevice::reset() {
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if (isKeyboard()) {
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keyboard.reset();
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}
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if (isTrackball()) {
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trackball.reset();
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}
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if (isMultiTouchScreen()) {
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multiTouchScreen.reset();
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} else if (isSingleTouchScreen()) {
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singleTouchScreen.reset();
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}
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if (isTouchScreen()) {
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touchScreen.reset();
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}
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}
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// --- InputDevice::TouchData ---
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void InputDevice::TouchData::copyFrom(const TouchData& other) {
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pointerCount = other.pointerCount;
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idBits = other.idBits;
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for (uint32_t i = 0; i < pointerCount; i++) {
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pointers[i] = other.pointers[i];
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idToIndex[i] = other.idToIndex[i];
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}
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}
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// --- InputDevice::KeyboardState ---
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void InputDevice::KeyboardState::reset() {
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current.metaState = META_NONE;
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current.downTime = 0;
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}
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// --- InputDevice::TrackballState ---
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void InputDevice::TrackballState::reset() {
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accumulator.clear();
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current.down = false;
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current.downTime = 0;
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}
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// --- InputDevice::TouchScreenState ---
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void InputDevice::TouchScreenState::reset() {
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lastTouch.clear();
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downTime = 0;
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currentVirtualKey.down = false;
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for (uint32_t i = 0; i < MAX_POINTERS; i++) {
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averagingTouchFilter.historyStart[i] = 0;
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averagingTouchFilter.historyEnd[i] = 0;
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}
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jumpyTouchFilter.jumpyPointsDropped = 0;
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}
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struct PointerDistanceHeapElement {
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uint32_t currentPointerIndex : 8;
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uint32_t lastPointerIndex : 8;
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uint64_t distance : 48; // squared distance
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};
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void InputDevice::TouchScreenState::calculatePointerIds() {
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uint32_t currentPointerCount = currentTouch.pointerCount;
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uint32_t lastPointerCount = lastTouch.pointerCount;
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if (currentPointerCount == 0) {
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// No pointers to assign.
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currentTouch.idBits.clear();
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} else if (lastPointerCount == 0) {
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// All pointers are new.
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currentTouch.idBits.clear();
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for (uint32_t i = 0; i < currentPointerCount; i++) {
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currentTouch.pointers[i].id = i;
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currentTouch.idToIndex[i] = i;
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currentTouch.idBits.markBit(i);
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}
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} else if (currentPointerCount == 1 && lastPointerCount == 1) {
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// Only one pointer and no change in count so it must have the same id as before.
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uint32_t id = lastTouch.pointers[0].id;
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currentTouch.pointers[0].id = id;
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currentTouch.idToIndex[id] = 0;
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currentTouch.idBits.value = BitSet32::valueForBit(id);
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} else {
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// General case.
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// We build a heap of squared euclidean distances between current and last pointers
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// associated with the current and last pointer indices. Then, we find the best
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// match (by distance) for each current pointer.
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PointerDistanceHeapElement heap[MAX_POINTERS * MAX_POINTERS];
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uint32_t heapSize = 0;
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for (uint32_t currentPointerIndex = 0; currentPointerIndex < currentPointerCount;
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currentPointerIndex++) {
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for (uint32_t lastPointerIndex = 0; lastPointerIndex < lastPointerCount;
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lastPointerIndex++) {
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int64_t deltaX = currentTouch.pointers[currentPointerIndex].x
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- lastTouch.pointers[lastPointerIndex].x;
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int64_t deltaY = currentTouch.pointers[currentPointerIndex].y
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- lastTouch.pointers[lastPointerIndex].y;
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uint64_t distance = uint64_t(deltaX * deltaX + deltaY * deltaY);
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// Insert new element into the heap (sift up).
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heap[heapSize].currentPointerIndex = currentPointerIndex;
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heap[heapSize].lastPointerIndex = lastPointerIndex;
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heap[heapSize].distance = distance;
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heapSize += 1;
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}
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}
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// Heapify
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for (uint32_t startIndex = heapSize / 2; startIndex != 0; ) {
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startIndex -= 1;
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for (uint32_t parentIndex = startIndex; ;) {
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uint32_t childIndex = parentIndex * 2 + 1;
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if (childIndex >= heapSize) {
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break;
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}
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if (childIndex + 1 < heapSize
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&& heap[childIndex + 1].distance < heap[childIndex].distance) {
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childIndex += 1;
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}
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if (heap[parentIndex].distance <= heap[childIndex].distance) {
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break;
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}
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swap(heap[parentIndex], heap[childIndex]);
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parentIndex = childIndex;
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}
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}
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#if DEBUG_POINTER_ASSIGNMENT
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LOGD("calculatePointerIds - initial distance min-heap: size=%d", heapSize);
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for (size_t i = 0; i < heapSize; i++) {
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LOGD(" heap[%d]: cur=%d, last=%d, distance=%lld",
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i, heap[i].currentPointerIndex, heap[i].lastPointerIndex,
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heap[i].distance);
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}
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#endif
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// Pull matches out by increasing order of distance.
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// To avoid reassigning pointers that have already been matched, the loop keeps track
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// of which last and current pointers have been matched using the matchedXXXBits variables.
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// It also tracks the used pointer id bits.
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BitSet32 matchedLastBits(0);
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BitSet32 matchedCurrentBits(0);
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BitSet32 usedIdBits(0);
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bool first = true;
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for (uint32_t i = min(currentPointerCount, lastPointerCount); i > 0; i--) {
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for (;;) {
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if (first) {
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// The first time through the loop, we just consume the root element of
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// the heap (the one with smallest distance).
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first = false;
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} else {
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// Previous iterations consumed the root element of the heap.
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// Pop root element off of the heap (sift down).
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heapSize -= 1;
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assert(heapSize > 0);
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// Sift down.
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heap[0] = heap[heapSize];
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for (uint32_t parentIndex = 0; ;) {
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uint32_t childIndex = parentIndex * 2 + 1;
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if (childIndex >= heapSize) {
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break;
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}
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if (childIndex + 1 < heapSize
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&& heap[childIndex + 1].distance < heap[childIndex].distance) {
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childIndex += 1;
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}
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if (heap[parentIndex].distance <= heap[childIndex].distance) {
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break;
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}
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swap(heap[parentIndex], heap[childIndex]);
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parentIndex = childIndex;
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}
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#if DEBUG_POINTER_ASSIGNMENT
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LOGD("calculatePointerIds - reduced distance min-heap: size=%d", heapSize);
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for (size_t i = 0; i < heapSize; i++) {
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LOGD(" heap[%d]: cur=%d, last=%d, distance=%lld",
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i, heap[i].currentPointerIndex, heap[i].lastPointerIndex,
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heap[i].distance);
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}
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#endif
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}
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uint32_t currentPointerIndex = heap[0].currentPointerIndex;
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if (matchedCurrentBits.hasBit(currentPointerIndex)) continue; // already matched
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uint32_t lastPointerIndex = heap[0].lastPointerIndex;
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if (matchedLastBits.hasBit(lastPointerIndex)) continue; // already matched
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matchedCurrentBits.markBit(currentPointerIndex);
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matchedLastBits.markBit(lastPointerIndex);
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uint32_t id = lastTouch.pointers[lastPointerIndex].id;
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currentTouch.pointers[currentPointerIndex].id = id;
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currentTouch.idToIndex[id] = currentPointerIndex;
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usedIdBits.markBit(id);
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#if DEBUG_POINTER_ASSIGNMENT
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LOGD("calculatePointerIds - matched: cur=%d, last=%d, id=%d, distance=%lld",
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lastPointerIndex, currentPointerIndex, id, heap[0].distance);
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#endif
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break;
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}
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}
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// Assign fresh ids to new pointers.
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if (currentPointerCount > lastPointerCount) {
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for (uint32_t i = currentPointerCount - lastPointerCount; ;) {
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uint32_t currentPointerIndex = matchedCurrentBits.firstUnmarkedBit();
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uint32_t id = usedIdBits.firstUnmarkedBit();
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currentTouch.pointers[currentPointerIndex].id = id;
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currentTouch.idToIndex[id] = currentPointerIndex;
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usedIdBits.markBit(id);
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#if DEBUG_POINTER_ASSIGNMENT
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LOGD("calculatePointerIds - assigned: cur=%d, id=%d",
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currentPointerIndex, id);
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#endif
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if (--i == 0) break; // done
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matchedCurrentBits.markBit(currentPointerIndex);
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}
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}
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// Fix id bits.
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currentTouch.idBits = usedIdBits;
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}
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}
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/* Special hack for devices that have bad screen data: if one of the
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* points has moved more than a screen height from the last position,
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* then drop it. */
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bool InputDevice::TouchScreenState::applyBadTouchFilter() {
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uint32_t pointerCount = currentTouch.pointerCount;
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// Nothing to do if there are no points.
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if (pointerCount == 0) {
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return false;
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}
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// Don't do anything if a finger is going down or up. We run
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// here before assigning pointer IDs, so there isn't a good
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// way to do per-finger matching.
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if (pointerCount != lastTouch.pointerCount) {
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return false;
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}
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// We consider a single movement across more than a 7/16 of
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// the long size of the screen to be bad. This was a magic value
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// determined by looking at the maximum distance it is feasible
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// to actually move in one sample.
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int32_t maxDeltaY = parameters.yAxis.range * 7 / 16;
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// XXX The original code in InputDevice.java included commented out
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// code for testing the X axis. Note that when we drop a point
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// we don't actually restore the old X either. Strange.
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// The old code also tries to track when bad points were previously
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// detected but it turns out that due to the placement of a "break"
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// at the end of the loop, we never set mDroppedBadPoint to true
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// so it is effectively dead code.
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// Need to figure out if the old code is busted or just overcomplicated
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// but working as intended.
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// Look through all new points and see if any are farther than
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// acceptable from all previous points.
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for (uint32_t i = pointerCount; i-- > 0; ) {
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int32_t y = currentTouch.pointers[i].y;
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int32_t closestY = INT_MAX;
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int32_t closestDeltaY = 0;
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#if DEBUG_HACKS
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LOGD("BadTouchFilter: Looking at next point #%d: y=%d", i, y);
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#endif
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for (uint32_t j = pointerCount; j-- > 0; ) {
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int32_t lastY = lastTouch.pointers[j].y;
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int32_t deltaY = abs(y - lastY);
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#if DEBUG_HACKS
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LOGD("BadTouchFilter: Comparing with last point #%d: y=%d deltaY=%d",
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j, lastY, deltaY);
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#endif
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if (deltaY < maxDeltaY) {
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goto SkipSufficientlyClosePoint;
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}
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if (deltaY < closestDeltaY) {
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closestDeltaY = deltaY;
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closestY = lastY;
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}
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}
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// Must not have found a close enough match.
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#if DEBUG_HACKS
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LOGD("BadTouchFilter: Dropping bad point #%d: newY=%d oldY=%d deltaY=%d maxDeltaY=%d",
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i, y, closestY, closestDeltaY, maxDeltaY);
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#endif
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currentTouch.pointers[i].y = closestY;
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return true; // XXX original code only corrects one point
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SkipSufficientlyClosePoint: ;
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}
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// No change.
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return false;
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}
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/* Special hack for devices that have bad screen data: drop points where
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* the coordinate value for one axis has jumped to the other pointer's location.
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*/
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bool InputDevice::TouchScreenState::applyJumpyTouchFilter() {
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uint32_t pointerCount = currentTouch.pointerCount;
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if (lastTouch.pointerCount != pointerCount) {
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#if DEBUG_HACKS
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LOGD("JumpyTouchFilter: Different pointer count %d -> %d",
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lastTouch.pointerCount, pointerCount);
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for (uint32_t i = 0; i < pointerCount; i++) {
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LOGD(" Pointer %d (%d, %d)", i,
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currentTouch.pointers[i].x, currentTouch.pointers[i].y);
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}
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#endif
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if (jumpyTouchFilter.jumpyPointsDropped < JUMPY_TRANSITION_DROPS) {
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if (lastTouch.pointerCount == 1 && pointerCount == 2) {
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// Just drop the first few events going from 1 to 2 pointers.
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// They're bad often enough that they're not worth considering.
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currentTouch.pointerCount = 1;
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jumpyTouchFilter.jumpyPointsDropped += 1;
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#if DEBUG_HACKS
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LOGD("JumpyTouchFilter: Pointer 2 dropped");
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#endif
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return true;
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} else if (lastTouch.pointerCount == 2 && pointerCount == 1) {
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// The event when we go from 2 -> 1 tends to be messed up too
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currentTouch.pointerCount = 2;
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currentTouch.pointers[0] = lastTouch.pointers[0];
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currentTouch.pointers[1] = lastTouch.pointers[1];
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jumpyTouchFilter.jumpyPointsDropped += 1;
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#if DEBUG_HACKS
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for (int32_t i = 0; i < 2; i++) {
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LOGD("JumpyTouchFilter: Pointer %d replaced (%d, %d)", i,
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currentTouch.pointers[i].x, currentTouch.pointers[i].y);
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}
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#endif
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return true;
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}
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}
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// Reset jumpy points dropped on other transitions or if limit exceeded.
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jumpyTouchFilter.jumpyPointsDropped = 0;
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#if DEBUG_HACKS
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LOGD("JumpyTouchFilter: Transition - drop limit reset");
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#endif
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return false;
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}
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// We have the same number of pointers as last time.
|
|
// A 'jumpy' point is one where the coordinate value for one axis
|
|
// has jumped to the other pointer's location. No need to do anything
|
|
// else if we only have one pointer.
|
|
if (pointerCount < 2) {
|
|
return false;
|
|
}
|
|
|
|
if (jumpyTouchFilter.jumpyPointsDropped < JUMPY_DROP_LIMIT) {
|
|
int jumpyEpsilon = parameters.yAxis.range / JUMPY_EPSILON_DIVISOR;
|
|
|
|
// We only replace the single worst jumpy point as characterized by pointer distance
|
|
// in a single axis.
|
|
int32_t badPointerIndex = -1;
|
|
int32_t badPointerReplacementIndex = -1;
|
|
int32_t badPointerDistance = INT_MIN; // distance to be corrected
|
|
|
|
for (uint32_t i = pointerCount; i-- > 0; ) {
|
|
int32_t x = currentTouch.pointers[i].x;
|
|
int32_t y = currentTouch.pointers[i].y;
|
|
|
|
#if DEBUG_HACKS
|
|
LOGD("JumpyTouchFilter: Point %d (%d, %d)", i, x, y);
|
|
#endif
|
|
|
|
// Check if a touch point is too close to another's coordinates
|
|
bool dropX = false, dropY = false;
|
|
for (uint32_t j = 0; j < pointerCount; j++) {
|
|
if (i == j) {
|
|
continue;
|
|
}
|
|
|
|
if (abs(x - currentTouch.pointers[j].x) <= jumpyEpsilon) {
|
|
dropX = true;
|
|
break;
|
|
}
|
|
|
|
if (abs(y - currentTouch.pointers[j].y) <= jumpyEpsilon) {
|
|
dropY = true;
|
|
break;
|
|
}
|
|
}
|
|
if (! dropX && ! dropY) {
|
|
continue; // not jumpy
|
|
}
|
|
|
|
// Find a replacement candidate by comparing with older points on the
|
|
// complementary (non-jumpy) axis.
|
|
int32_t distance = INT_MIN; // distance to be corrected
|
|
int32_t replacementIndex = -1;
|
|
|
|
if (dropX) {
|
|
// X looks too close. Find an older replacement point with a close Y.
|
|
int32_t smallestDeltaY = INT_MAX;
|
|
for (uint32_t j = 0; j < pointerCount; j++) {
|
|
int32_t deltaY = abs(y - lastTouch.pointers[j].y);
|
|
if (deltaY < smallestDeltaY) {
|
|
smallestDeltaY = deltaY;
|
|
replacementIndex = j;
|
|
}
|
|
}
|
|
distance = abs(x - lastTouch.pointers[replacementIndex].x);
|
|
} else {
|
|
// Y looks too close. Find an older replacement point with a close X.
|
|
int32_t smallestDeltaX = INT_MAX;
|
|
for (uint32_t j = 0; j < pointerCount; j++) {
|
|
int32_t deltaX = abs(x - lastTouch.pointers[j].x);
|
|
if (deltaX < smallestDeltaX) {
|
|
smallestDeltaX = deltaX;
|
|
replacementIndex = j;
|
|
}
|
|
}
|
|
distance = abs(y - lastTouch.pointers[replacementIndex].y);
|
|
}
|
|
|
|
// If replacing this pointer would correct a worse error than the previous ones
|
|
// considered, then use this replacement instead.
|
|
if (distance > badPointerDistance) {
|
|
badPointerIndex = i;
|
|
badPointerReplacementIndex = replacementIndex;
|
|
badPointerDistance = distance;
|
|
}
|
|
}
|
|
|
|
// Correct the jumpy pointer if one was found.
|
|
if (badPointerIndex >= 0) {
|
|
#if DEBUG_HACKS
|
|
LOGD("JumpyTouchFilter: Replacing bad pointer %d with (%d, %d)",
|
|
badPointerIndex,
|
|
lastTouch.pointers[badPointerReplacementIndex].x,
|
|
lastTouch.pointers[badPointerReplacementIndex].y);
|
|
#endif
|
|
|
|
currentTouch.pointers[badPointerIndex].x =
|
|
lastTouch.pointers[badPointerReplacementIndex].x;
|
|
currentTouch.pointers[badPointerIndex].y =
|
|
lastTouch.pointers[badPointerReplacementIndex].y;
|
|
jumpyTouchFilter.jumpyPointsDropped += 1;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
jumpyTouchFilter.jumpyPointsDropped = 0;
|
|
return false;
|
|
}
|
|
|
|
/* Special hack for devices that have bad screen data: aggregate and
|
|
* compute averages of the coordinate data, to reduce the amount of
|
|
* jitter seen by applications. */
|
|
void InputDevice::TouchScreenState::applyAveragingTouchFilter() {
|
|
for (uint32_t currentIndex = 0; currentIndex < currentTouch.pointerCount; currentIndex++) {
|
|
uint32_t id = currentTouch.pointers[currentIndex].id;
|
|
int32_t x = currentTouch.pointers[currentIndex].x;
|
|
int32_t y = currentTouch.pointers[currentIndex].y;
|
|
int32_t pressure = currentTouch.pointers[currentIndex].pressure;
|
|
|
|
if (lastTouch.idBits.hasBit(id)) {
|
|
// Pointer was down before and is still down now.
|
|
// Compute average over history trace.
|
|
uint32_t start = averagingTouchFilter.historyStart[id];
|
|
uint32_t end = averagingTouchFilter.historyEnd[id];
|
|
|
|
int64_t deltaX = x - averagingTouchFilter.historyData[end].pointers[id].x;
|
|
int64_t deltaY = y - averagingTouchFilter.historyData[end].pointers[id].y;
|
|
uint64_t distance = uint64_t(deltaX * deltaX + deltaY * deltaY);
|
|
|
|
#if DEBUG_HACKS
|
|
LOGD("AveragingTouchFilter: Pointer id %d - Distance from last sample: %lld",
|
|
id, distance);
|
|
#endif
|
|
|
|
if (distance < AVERAGING_DISTANCE_LIMIT) {
|
|
// Increment end index in preparation for recording new historical data.
|
|
end += 1;
|
|
if (end > AVERAGING_HISTORY_SIZE) {
|
|
end = 0;
|
|
}
|
|
|
|
// If the end index has looped back to the start index then we have filled
|
|
// the historical trace up to the desired size so we drop the historical
|
|
// data at the start of the trace.
|
|
if (end == start) {
|
|
start += 1;
|
|
if (start > AVERAGING_HISTORY_SIZE) {
|
|
start = 0;
|
|
}
|
|
}
|
|
|
|
// Add the raw data to the historical trace.
|
|
averagingTouchFilter.historyStart[id] = start;
|
|
averagingTouchFilter.historyEnd[id] = end;
|
|
averagingTouchFilter.historyData[end].pointers[id].x = x;
|
|
averagingTouchFilter.historyData[end].pointers[id].y = y;
|
|
averagingTouchFilter.historyData[end].pointers[id].pressure = pressure;
|
|
|
|
// Average over all historical positions in the trace by total pressure.
|
|
int32_t averagedX = 0;
|
|
int32_t averagedY = 0;
|
|
int32_t totalPressure = 0;
|
|
for (;;) {
|
|
int32_t historicalX = averagingTouchFilter.historyData[start].pointers[id].x;
|
|
int32_t historicalY = averagingTouchFilter.historyData[start].pointers[id].y;
|
|
int32_t historicalPressure = averagingTouchFilter.historyData[start]
|
|
.pointers[id].pressure;
|
|
|
|
averagedX += historicalX * historicalPressure;
|
|
averagedY += historicalY * historicalPressure;
|
|
totalPressure += historicalPressure;
|
|
|
|
if (start == end) {
|
|
break;
|
|
}
|
|
|
|
start += 1;
|
|
if (start > AVERAGING_HISTORY_SIZE) {
|
|
start = 0;
|
|
}
|
|
}
|
|
|
|
averagedX /= totalPressure;
|
|
averagedY /= totalPressure;
|
|
|
|
#if DEBUG_HACKS
|
|
LOGD("AveragingTouchFilter: Pointer id %d - "
|
|
"totalPressure=%d, averagedX=%d, averagedY=%d", id, totalPressure,
|
|
averagedX, averagedY);
|
|
#endif
|
|
|
|
currentTouch.pointers[currentIndex].x = averagedX;
|
|
currentTouch.pointers[currentIndex].y = averagedY;
|
|
} else {
|
|
#if DEBUG_HACKS
|
|
LOGD("AveragingTouchFilter: Pointer id %d - Exceeded max distance", id);
|
|
#endif
|
|
}
|
|
} else {
|
|
#if DEBUG_HACKS
|
|
LOGD("AveragingTouchFilter: Pointer id %d - Pointer went up", id);
|
|
#endif
|
|
}
|
|
|
|
// Reset pointer history.
|
|
averagingTouchFilter.historyStart[id] = 0;
|
|
averagingTouchFilter.historyEnd[id] = 0;
|
|
averagingTouchFilter.historyData[0].pointers[id].x = x;
|
|
averagingTouchFilter.historyData[0].pointers[id].y = y;
|
|
averagingTouchFilter.historyData[0].pointers[id].pressure = pressure;
|
|
}
|
|
}
|
|
|
|
bool InputDevice::TouchScreenState::isPointInsideDisplay(int32_t x, int32_t y) const {
|
|
return x >= parameters.xAxis.minValue
|
|
&& x <= parameters.xAxis.maxValue
|
|
&& y >= parameters.yAxis.minValue
|
|
&& y <= parameters.yAxis.maxValue;
|
|
}
|
|
|
|
|
|
// --- InputDevice::SingleTouchScreenState ---
|
|
|
|
void InputDevice::SingleTouchScreenState::reset() {
|
|
accumulator.clear();
|
|
current.down = false;
|
|
current.x = 0;
|
|
current.y = 0;
|
|
current.pressure = 0;
|
|
current.size = 0;
|
|
}
|
|
|
|
|
|
// --- InputDevice::MultiTouchScreenState ---
|
|
|
|
void InputDevice::MultiTouchScreenState::reset() {
|
|
accumulator.clear();
|
|
}
|
|
|
|
|
|
// --- InputReader ---
|
|
|
|
InputReader::InputReader(const sp<EventHubInterface>& eventHub,
|
|
const sp<InputReaderPolicyInterface>& policy,
|
|
const sp<InputDispatcherInterface>& dispatcher) :
|
|
mEventHub(eventHub), mPolicy(policy), mDispatcher(dispatcher) {
|
|
configureExcludedDevices();
|
|
resetGlobalMetaState();
|
|
resetDisplayProperties();
|
|
updateExportedVirtualKeyState();
|
|
}
|
|
|
|
InputReader::~InputReader() {
|
|
for (size_t i = 0; i < mDevices.size(); i++) {
|
|
delete mDevices.valueAt(i);
|
|
}
|
|
}
|
|
|
|
void InputReader::loopOnce() {
|
|
RawEvent rawEvent;
|
|
mEventHub->getEvent(& rawEvent.deviceId, & rawEvent.type, & rawEvent.scanCode,
|
|
& rawEvent.keyCode, & rawEvent.flags, & rawEvent.value, & rawEvent.when);
|
|
|
|
// Replace the event timestamp so it is in same timebase as java.lang.System.nanoTime()
|
|
// and android.os.SystemClock.uptimeMillis() as expected by the rest of the system.
|
|
rawEvent.when = systemTime(SYSTEM_TIME_MONOTONIC);
|
|
|
|
#if DEBUG_RAW_EVENTS
|
|
LOGD("Input event: device=0x%x type=0x%x scancode=%d keycode=%d value=%d",
|
|
rawEvent.deviceId, rawEvent.type, rawEvent.scanCode, rawEvent.keyCode,
|
|
rawEvent.value);
|
|
#endif
|
|
|
|
process(& rawEvent);
|
|
}
|
|
|
|
void InputReader::process(const RawEvent* rawEvent) {
|
|
switch (rawEvent->type) {
|
|
case EventHubInterface::DEVICE_ADDED:
|
|
handleDeviceAdded(rawEvent);
|
|
break;
|
|
|
|
case EventHubInterface::DEVICE_REMOVED:
|
|
handleDeviceRemoved(rawEvent);
|
|
break;
|
|
|
|
case EV_SYN:
|
|
handleSync(rawEvent);
|
|
break;
|
|
|
|
case EV_KEY:
|
|
handleKey(rawEvent);
|
|
break;
|
|
|
|
case EV_REL:
|
|
handleRelativeMotion(rawEvent);
|
|
break;
|
|
|
|
case EV_ABS:
|
|
handleAbsoluteMotion(rawEvent);
|
|
break;
|
|
|
|
case EV_SW:
|
|
handleSwitch(rawEvent);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void InputReader::handleDeviceAdded(const RawEvent* rawEvent) {
|
|
InputDevice* device = getDevice(rawEvent->deviceId);
|
|
if (device) {
|
|
LOGW("Ignoring spurious device added event for deviceId %d.", rawEvent->deviceId);
|
|
return;
|
|
}
|
|
|
|
addDevice(rawEvent->when, rawEvent->deviceId);
|
|
}
|
|
|
|
void InputReader::handleDeviceRemoved(const RawEvent* rawEvent) {
|
|
InputDevice* device = getDevice(rawEvent->deviceId);
|
|
if (! device) {
|
|
LOGW("Ignoring spurious device removed event for deviceId %d.", rawEvent->deviceId);
|
|
return;
|
|
}
|
|
|
|
removeDevice(rawEvent->when, device);
|
|
}
|
|
|
|
void InputReader::handleSync(const RawEvent* rawEvent) {
|
|
InputDevice* device = getNonIgnoredDevice(rawEvent->deviceId);
|
|
if (! device) return;
|
|
|
|
if (rawEvent->scanCode == SYN_MT_REPORT) {
|
|
// MultiTouch Sync: The driver has returned all data for *one* of the pointers.
|
|
// We drop pointers with pressure <= 0 since that indicates they are not down.
|
|
if (device->isMultiTouchScreen()) {
|
|
uint32_t pointerIndex = device->multiTouchScreen.accumulator.pointerCount;
|
|
|
|
if (device->multiTouchScreen.accumulator.pointers[pointerIndex].fields) {
|
|
if (pointerIndex == MAX_POINTERS) {
|
|
LOGW("MultiTouch device driver returned more than maximum of %d pointers.",
|
|
MAX_POINTERS);
|
|
} else {
|
|
pointerIndex += 1;
|
|
device->multiTouchScreen.accumulator.pointerCount = pointerIndex;
|
|
}
|
|
}
|
|
|
|
device->multiTouchScreen.accumulator.pointers[pointerIndex].clear();
|
|
}
|
|
} else if (rawEvent->scanCode == SYN_REPORT) {
|
|
// General Sync: The driver has returned all data for the current event update.
|
|
if (device->isMultiTouchScreen()) {
|
|
if (device->multiTouchScreen.accumulator.isDirty()) {
|
|
onMultiTouchScreenStateChanged(rawEvent->when, device);
|
|
device->multiTouchScreen.accumulator.clear();
|
|
}
|
|
} else if (device->isSingleTouchScreen()) {
|
|
if (device->singleTouchScreen.accumulator.isDirty()) {
|
|
onSingleTouchScreenStateChanged(rawEvent->when, device);
|
|
device->singleTouchScreen.accumulator.clear();
|
|
}
|
|
}
|
|
|
|
if (device->trackball.accumulator.isDirty()) {
|
|
onTrackballStateChanged(rawEvent->when, device);
|
|
device->trackball.accumulator.clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputReader::handleKey(const RawEvent* rawEvent) {
|
|
InputDevice* device = getNonIgnoredDevice(rawEvent->deviceId);
|
|
if (! device) return;
|
|
|
|
bool down = rawEvent->value != 0;
|
|
int32_t scanCode = rawEvent->scanCode;
|
|
|
|
if (device->isKeyboard() && (scanCode < BTN_FIRST || scanCode > BTN_LAST)) {
|
|
int32_t keyCode = rawEvent->keyCode;
|
|
onKey(rawEvent->when, device, down, keyCode, scanCode, rawEvent->flags);
|
|
} else if (device->isSingleTouchScreen()) {
|
|
switch (rawEvent->scanCode) {
|
|
case BTN_TOUCH:
|
|
device->singleTouchScreen.accumulator.fields |=
|
|
InputDevice::SingleTouchScreenState::Accumulator::FIELD_BTN_TOUCH;
|
|
device->singleTouchScreen.accumulator.btnTouch = down;
|
|
break;
|
|
}
|
|
} else if (device->isTrackball()) {
|
|
switch (rawEvent->scanCode) {
|
|
case BTN_MOUSE:
|
|
device->trackball.accumulator.fields |=
|
|
InputDevice::TrackballState::Accumulator::FIELD_BTN_MOUSE;
|
|
device->trackball.accumulator.btnMouse = down;
|
|
|
|
// send the down immediately
|
|
// XXX this emulates the old behavior of KeyInputQueue, unclear whether it is
|
|
// necessary or if we can wait until the next sync
|
|
onTrackballStateChanged(rawEvent->when, device);
|
|
device->trackball.accumulator.clear();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputReader::handleRelativeMotion(const RawEvent* rawEvent) {
|
|
InputDevice* device = getNonIgnoredDevice(rawEvent->deviceId);
|
|
if (! device) return;
|
|
|
|
if (device->isTrackball()) {
|
|
switch (rawEvent->scanCode) {
|
|
case REL_X:
|
|
device->trackball.accumulator.fields |=
|
|
InputDevice::TrackballState::Accumulator::FIELD_REL_X;
|
|
device->trackball.accumulator.relX = rawEvent->value;
|
|
break;
|
|
case REL_Y:
|
|
device->trackball.accumulator.fields |=
|
|
InputDevice::TrackballState::Accumulator::FIELD_REL_Y;
|
|
device->trackball.accumulator.relY = rawEvent->value;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputReader::handleAbsoluteMotion(const RawEvent* rawEvent) {
|
|
InputDevice* device = getNonIgnoredDevice(rawEvent->deviceId);
|
|
if (! device) return;
|
|
|
|
if (device->isMultiTouchScreen()) {
|
|
uint32_t pointerIndex = device->multiTouchScreen.accumulator.pointerCount;
|
|
InputDevice::MultiTouchScreenState::Accumulator::Pointer* pointer =
|
|
& device->multiTouchScreen.accumulator.pointers[pointerIndex];
|
|
|
|
switch (rawEvent->scanCode) {
|
|
case ABS_MT_POSITION_X:
|
|
pointer->fields |=
|
|
InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_POSITION_X;
|
|
pointer->absMTPositionX = rawEvent->value;
|
|
break;
|
|
case ABS_MT_POSITION_Y:
|
|
pointer->fields |=
|
|
InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_POSITION_Y;
|
|
pointer->absMTPositionY = rawEvent->value;
|
|
break;
|
|
case ABS_MT_TOUCH_MAJOR:
|
|
pointer->fields |=
|
|
InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_TOUCH_MAJOR;
|
|
pointer->absMTTouchMajor = rawEvent->value;
|
|
break;
|
|
case ABS_MT_WIDTH_MAJOR:
|
|
pointer->fields |=
|
|
InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_WIDTH_MAJOR;
|
|
pointer->absMTWidthMajor = rawEvent->value;
|
|
break;
|
|
case ABS_MT_TRACKING_ID:
|
|
pointer->fields |=
|
|
InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_TRACKING_ID;
|
|
pointer->absMTTrackingId = rawEvent->value;
|
|
break;
|
|
}
|
|
} else if (device->isSingleTouchScreen()) {
|
|
switch (rawEvent->scanCode) {
|
|
case ABS_X:
|
|
device->singleTouchScreen.accumulator.fields |=
|
|
InputDevice::SingleTouchScreenState::Accumulator::FIELD_ABS_X;
|
|
device->singleTouchScreen.accumulator.absX = rawEvent->value;
|
|
break;
|
|
case ABS_Y:
|
|
device->singleTouchScreen.accumulator.fields |=
|
|
InputDevice::SingleTouchScreenState::Accumulator::FIELD_ABS_Y;
|
|
device->singleTouchScreen.accumulator.absY = rawEvent->value;
|
|
break;
|
|
case ABS_PRESSURE:
|
|
device->singleTouchScreen.accumulator.fields |=
|
|
InputDevice::SingleTouchScreenState::Accumulator::FIELD_ABS_PRESSURE;
|
|
device->singleTouchScreen.accumulator.absPressure = rawEvent->value;
|
|
break;
|
|
case ABS_TOOL_WIDTH:
|
|
device->singleTouchScreen.accumulator.fields |=
|
|
InputDevice::SingleTouchScreenState::Accumulator::FIELD_ABS_TOOL_WIDTH;
|
|
device->singleTouchScreen.accumulator.absToolWidth = rawEvent->value;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputReader::handleSwitch(const RawEvent* rawEvent) {
|
|
InputDevice* device = getNonIgnoredDevice(rawEvent->deviceId);
|
|
if (! device) return;
|
|
|
|
onSwitch(rawEvent->when, device, rawEvent->scanCode, rawEvent->value);
|
|
}
|
|
|
|
void InputReader::onKey(nsecs_t when, InputDevice* device,
|
|
bool down, int32_t keyCode, int32_t scanCode, uint32_t policyFlags) {
|
|
/* Refresh display properties so we can rotate key codes according to display orientation */
|
|
|
|
if (! refreshDisplayProperties()) {
|
|
return;
|
|
}
|
|
|
|
/* Update device state */
|
|
|
|
int32_t oldMetaState = device->keyboard.current.metaState;
|
|
int32_t newMetaState = updateMetaState(keyCode, down, oldMetaState);
|
|
if (oldMetaState != newMetaState) {
|
|
device->keyboard.current.metaState = newMetaState;
|
|
resetGlobalMetaState();
|
|
}
|
|
|
|
// FIXME if we send a down event about a rotated key press we should ensure that we send
|
|
// a corresponding up event about the rotated key press even if the orientation
|
|
// has changed in the meantime
|
|
keyCode = rotateKeyCode(keyCode, mDisplayOrientation);
|
|
|
|
if (down) {
|
|
device->keyboard.current.downTime = when;
|
|
}
|
|
|
|
/* Apply policy */
|
|
|
|
int32_t policyActions = mPolicy->interceptKey(when, device->id,
|
|
down, keyCode, scanCode, policyFlags);
|
|
|
|
if (! applyStandardInputDispatchPolicyActions(when, policyActions, & policyFlags)) {
|
|
return; // event dropped
|
|
}
|
|
|
|
/* Enqueue key event for dispatch */
|
|
|
|
int32_t keyEventAction;
|
|
if (down) {
|
|
device->keyboard.current.downTime = when;
|
|
keyEventAction = KEY_EVENT_ACTION_DOWN;
|
|
} else {
|
|
keyEventAction = KEY_EVENT_ACTION_UP;
|
|
}
|
|
|
|
int32_t keyEventFlags = KEY_EVENT_FLAG_FROM_SYSTEM;
|
|
if (policyActions & InputReaderPolicyInterface::ACTION_WOKE_HERE) {
|
|
keyEventFlags = keyEventFlags | KEY_EVENT_FLAG_WOKE_HERE;
|
|
}
|
|
|
|
mDispatcher->notifyKey(when, device->id, INPUT_EVENT_NATURE_KEY, policyFlags,
|
|
keyEventAction, keyEventFlags, keyCode, scanCode,
|
|
device->keyboard.current.metaState,
|
|
device->keyboard.current.downTime);
|
|
}
|
|
|
|
void InputReader::onSwitch(nsecs_t when, InputDevice* device, int32_t switchCode,
|
|
int32_t switchValue) {
|
|
int32_t policyActions = mPolicy->interceptSwitch(when, switchCode, switchValue);
|
|
|
|
uint32_t policyFlags = 0;
|
|
applyStandardInputDispatchPolicyActions(when, policyActions, & policyFlags);
|
|
}
|
|
|
|
void InputReader::onMultiTouchScreenStateChanged(nsecs_t when,
|
|
InputDevice* device) {
|
|
static const uint32_t REQUIRED_FIELDS =
|
|
InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_POSITION_X
|
|
| InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_POSITION_Y
|
|
| InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_TOUCH_MAJOR
|
|
| InputDevice::MultiTouchScreenState::Accumulator::FIELD_ABS_MT_WIDTH_MAJOR;
|
|
|
|
/* Refresh display properties so we can map touch screen coords into display coords */
|
|
|
|
if (! refreshDisplayProperties()) {
|
|
return;
|
|
}
|
|
|
|
/* Update device state */
|
|
|
|
InputDevice::MultiTouchScreenState* in = & device->multiTouchScreen;
|
|
InputDevice::TouchData* out = & device->touchScreen.currentTouch;
|
|
|
|
uint32_t inCount = in->accumulator.pointerCount;
|
|
uint32_t outCount = 0;
|
|
bool havePointerIds = true;
|
|
|
|
out->clear();
|
|
|
|
for (uint32_t inIndex = 0; inIndex < inCount; inIndex++) {
|
|
uint32_t fields = in->accumulator.pointers[inIndex].fields;
|
|
|
|
if ((fields & REQUIRED_FIELDS) != REQUIRED_FIELDS) {
|
|
#if DEBUG_POINTERS
|
|
LOGD("Pointers: Missing required multitouch pointer fields: index=%d, fields=%d",
|
|
inIndex, fields);
|
|
continue;
|
|
#endif
|
|
}
|
|
|
|
if (in->accumulator.pointers[inIndex].absMTTouchMajor <= 0) {
|
|
// Pointer is not down. Drop it.
|
|
continue;
|
|
}
|
|
|
|
// FIXME assignment of pressure may be incorrect, probably better to let
|
|
// pressure = touch / width. Later on we pass width to MotionEvent as a size, which
|
|
// isn't quite right either. Should be using touch for that.
|
|
out->pointers[outCount].x = in->accumulator.pointers[inIndex].absMTPositionX;
|
|
out->pointers[outCount].y = in->accumulator.pointers[inIndex].absMTPositionY;
|
|
out->pointers[outCount].pressure = in->accumulator.pointers[inIndex].absMTTouchMajor;
|
|
out->pointers[outCount].size = in->accumulator.pointers[inIndex].absMTWidthMajor;
|
|
|
|
if (havePointerIds) {
|
|
if (fields & InputDevice::MultiTouchScreenState::Accumulator::
|
|
FIELD_ABS_MT_TRACKING_ID) {
|
|
uint32_t id = uint32_t(in->accumulator.pointers[inIndex].absMTTrackingId);
|
|
|
|
if (id > MAX_POINTER_ID) {
|
|
#if DEBUG_POINTERS
|
|
LOGD("Pointers: Ignoring driver provided pointer id %d because "
|
|
"it is larger than max supported id %d for optimizations",
|
|
id, MAX_POINTER_ID);
|
|
#endif
|
|
havePointerIds = false;
|
|
}
|
|
else {
|
|
out->pointers[outCount].id = id;
|
|
out->idToIndex[id] = outCount;
|
|
out->idBits.markBit(id);
|
|
}
|
|
} else {
|
|
havePointerIds = false;
|
|
}
|
|
}
|
|
|
|
outCount += 1;
|
|
}
|
|
|
|
out->pointerCount = outCount;
|
|
|
|
onTouchScreenChanged(when, device, havePointerIds);
|
|
}
|
|
|
|
void InputReader::onSingleTouchScreenStateChanged(nsecs_t when,
|
|
InputDevice* device) {
|
|
/* Refresh display properties so we can map touch screen coords into display coords */
|
|
|
|
if (! refreshDisplayProperties()) {
|
|
return;
|
|
}
|
|
|
|
/* Update device state */
|
|
|
|
InputDevice::SingleTouchScreenState* in = & device->singleTouchScreen;
|
|
InputDevice::TouchData* out = & device->touchScreen.currentTouch;
|
|
|
|
uint32_t fields = in->accumulator.fields;
|
|
|
|
if (fields & InputDevice::SingleTouchScreenState::Accumulator::FIELD_BTN_TOUCH) {
|
|
in->current.down = in->accumulator.btnTouch;
|
|
}
|
|
|
|
if (fields & InputDevice::SingleTouchScreenState::Accumulator::FIELD_ABS_X) {
|
|
in->current.x = in->accumulator.absX;
|
|
}
|
|
|
|
if (fields & InputDevice::SingleTouchScreenState::Accumulator::FIELD_ABS_Y) {
|
|
in->current.y = in->accumulator.absY;
|
|
}
|
|
|
|
if (fields & InputDevice::SingleTouchScreenState::Accumulator::FIELD_ABS_PRESSURE) {
|
|
in->current.pressure = in->accumulator.absPressure;
|
|
}
|
|
|
|
if (fields & InputDevice::SingleTouchScreenState::Accumulator::FIELD_ABS_TOOL_WIDTH) {
|
|
in->current.size = in->accumulator.absToolWidth;
|
|
}
|
|
|
|
out->clear();
|
|
|
|
if (in->current.down) {
|
|
out->pointerCount = 1;
|
|
out->pointers[0].id = 0;
|
|
out->pointers[0].x = in->current.x;
|
|
out->pointers[0].y = in->current.y;
|
|
out->pointers[0].pressure = in->current.pressure;
|
|
out->pointers[0].size = in->current.size;
|
|
out->idToIndex[0] = 0;
|
|
out->idBits.markBit(0);
|
|
}
|
|
|
|
onTouchScreenChanged(when, device, true);
|
|
}
|
|
|
|
void InputReader::onTouchScreenChanged(nsecs_t when,
|
|
InputDevice* device, bool havePointerIds) {
|
|
/* Apply policy */
|
|
|
|
int32_t policyActions = mPolicy->interceptTouch(when);
|
|
|
|
uint32_t policyFlags = 0;
|
|
if (! applyStandardInputDispatchPolicyActions(when, policyActions, & policyFlags)) {
|
|
device->touchScreen.lastTouch.clear();
|
|
return; // event dropped
|
|
}
|
|
|
|
/* Preprocess pointer data */
|
|
|
|
if (device->touchScreen.parameters.useBadTouchFilter) {
|
|
if (device->touchScreen.applyBadTouchFilter()) {
|
|
havePointerIds = false;
|
|
}
|
|
}
|
|
|
|
if (device->touchScreen.parameters.useJumpyTouchFilter) {
|
|
if (device->touchScreen.applyJumpyTouchFilter()) {
|
|
havePointerIds = false;
|
|
}
|
|
}
|
|
|
|
if (! havePointerIds) {
|
|
device->touchScreen.calculatePointerIds();
|
|
}
|
|
|
|
InputDevice::TouchData temp;
|
|
InputDevice::TouchData* savedTouch;
|
|
if (device->touchScreen.parameters.useAveragingTouchFilter) {
|
|
temp.copyFrom(device->touchScreen.currentTouch);
|
|
savedTouch = & temp;
|
|
|
|
device->touchScreen.applyAveragingTouchFilter();
|
|
} else {
|
|
savedTouch = & device->touchScreen.currentTouch;
|
|
}
|
|
|
|
/* Process virtual keys or touches */
|
|
|
|
if (! consumeVirtualKeyTouches(when, device, policyFlags)) {
|
|
dispatchTouches(when, device, policyFlags);
|
|
}
|
|
|
|
// Copy current touch to last touch in preparation for the next cycle.
|
|
device->touchScreen.lastTouch.copyFrom(*savedTouch);
|
|
}
|
|
|
|
bool InputReader::consumeVirtualKeyTouches(nsecs_t when,
|
|
InputDevice* device, uint32_t policyFlags) {
|
|
if (device->touchScreen.currentVirtualKey.down) {
|
|
if (device->touchScreen.currentTouch.pointerCount == 0) {
|
|
// Pointer went up while virtual key was down. Send key up event.
|
|
device->touchScreen.currentVirtualKey.down = false;
|
|
|
|
#if DEBUG_VIRTUAL_KEYS
|
|
LOGD("VirtualKeys: Generating key up: keyCode=%d, scanCode=%d",
|
|
device->touchScreen.currentVirtualKey.keyCode,
|
|
device->touchScreen.currentVirtualKey.scanCode);
|
|
#endif
|
|
|
|
dispatchVirtualKey(when, device, policyFlags, KEY_EVENT_ACTION_UP,
|
|
KEY_EVENT_FLAG_FROM_SYSTEM | KEY_EVENT_FLAG_VIRTUAL_HARD_KEY);
|
|
return true; // consumed
|
|
}
|
|
|
|
int32_t x = device->touchScreen.currentTouch.pointers[0].x;
|
|
int32_t y = device->touchScreen.currentTouch.pointers[0].y;
|
|
if (device->touchScreen.isPointInsideDisplay(x, y)
|
|
|| device->touchScreen.currentTouch.pointerCount != 1) {
|
|
// Pointer moved inside the display area or another pointer also went down.
|
|
// Send key cancellation.
|
|
device->touchScreen.currentVirtualKey.down = false;
|
|
|
|
#if DEBUG_VIRTUAL_KEYS
|
|
LOGD("VirtualKeys: Canceling key: keyCode=%d, scanCode=%d",
|
|
device->touchScreen.currentVirtualKey.keyCode,
|
|
device->touchScreen.currentVirtualKey.scanCode);
|
|
#endif
|
|
|
|
dispatchVirtualKey(when, device, policyFlags, KEY_EVENT_ACTION_UP,
|
|
KEY_EVENT_FLAG_FROM_SYSTEM | KEY_EVENT_FLAG_VIRTUAL_HARD_KEY
|
|
| KEY_EVENT_FLAG_CANCELED);
|
|
|
|
// Clear the last touch data so we will consider the pointer as having just been
|
|
// pressed down when generating subsequent motion events.
|
|
device->touchScreen.lastTouch.clear();
|
|
return false; // not consumed
|
|
}
|
|
} else if (device->touchScreen.currentTouch.pointerCount == 1
|
|
&& device->touchScreen.lastTouch.pointerCount == 0) {
|
|
int32_t x = device->touchScreen.currentTouch.pointers[0].x;
|
|
int32_t y = device->touchScreen.currentTouch.pointers[0].y;
|
|
for (size_t i = 0; i < device->touchScreen.virtualKeys.size(); i++) {
|
|
const InputDevice::VirtualKey& virtualKey = device->touchScreen.virtualKeys[i];
|
|
|
|
#if DEBUG_VIRTUAL_KEYS
|
|
LOGD("VirtualKeys: Hit test (%d, %d): keyCode=%d, scanCode=%d, "
|
|
"left=%d, top=%d, right=%d, bottom=%d",
|
|
x, y,
|
|
virtualKey.keyCode, virtualKey.scanCode,
|
|
virtualKey.hitLeft, virtualKey.hitTop,
|
|
virtualKey.hitRight, virtualKey.hitBottom);
|
|
#endif
|
|
|
|
if (virtualKey.isHit(x, y)) {
|
|
device->touchScreen.currentVirtualKey.down = true;
|
|
device->touchScreen.currentVirtualKey.downTime = when;
|
|
device->touchScreen.currentVirtualKey.keyCode = virtualKey.keyCode;
|
|
device->touchScreen.currentVirtualKey.scanCode = virtualKey.scanCode;
|
|
|
|
#if DEBUG_VIRTUAL_KEYS
|
|
LOGD("VirtualKeys: Generating key down: keyCode=%d, scanCode=%d",
|
|
device->touchScreen.currentVirtualKey.keyCode,
|
|
device->touchScreen.currentVirtualKey.scanCode);
|
|
#endif
|
|
|
|
dispatchVirtualKey(when, device, policyFlags, KEY_EVENT_ACTION_DOWN,
|
|
KEY_EVENT_FLAG_FROM_SYSTEM | KEY_EVENT_FLAG_VIRTUAL_HARD_KEY);
|
|
return true; // consumed
|
|
}
|
|
}
|
|
}
|
|
|
|
return false; // not consumed
|
|
}
|
|
|
|
void InputReader::dispatchVirtualKey(nsecs_t when,
|
|
InputDevice* device, uint32_t policyFlags,
|
|
int32_t keyEventAction, int32_t keyEventFlags) {
|
|
updateExportedVirtualKeyState();
|
|
|
|
int32_t keyCode = device->touchScreen.currentVirtualKey.keyCode;
|
|
int32_t scanCode = device->touchScreen.currentVirtualKey.scanCode;
|
|
nsecs_t downTime = device->touchScreen.currentVirtualKey.downTime;
|
|
int32_t metaState = globalMetaState();
|
|
|
|
mPolicy->virtualKeyFeedback(when, device->id, keyEventAction, keyEventFlags,
|
|
keyCode, scanCode, metaState, downTime);
|
|
|
|
int32_t policyActions = mPolicy->interceptKey(when, device->id,
|
|
keyEventAction == KEY_EVENT_ACTION_DOWN, keyCode, scanCode, policyFlags);
|
|
|
|
if (applyStandardInputDispatchPolicyActions(when, policyActions, & policyFlags)) {
|
|
mDispatcher->notifyKey(when, device->id, INPUT_EVENT_NATURE_KEY, policyFlags,
|
|
keyEventAction, keyEventFlags, keyCode, scanCode, metaState, downTime);
|
|
}
|
|
}
|
|
|
|
void InputReader::dispatchTouches(nsecs_t when,
|
|
InputDevice* device, uint32_t policyFlags) {
|
|
uint32_t currentPointerCount = device->touchScreen.currentTouch.pointerCount;
|
|
uint32_t lastPointerCount = device->touchScreen.lastTouch.pointerCount;
|
|
if (currentPointerCount == 0 && lastPointerCount == 0) {
|
|
return; // nothing to do!
|
|
}
|
|
|
|
BitSet32 currentIdBits = device->touchScreen.currentTouch.idBits;
|
|
BitSet32 lastIdBits = device->touchScreen.lastTouch.idBits;
|
|
|
|
if (currentIdBits == lastIdBits) {
|
|
// No pointer id changes so this is a move event.
|
|
// The dispatcher takes care of batching moves so we don't have to deal with that here.
|
|
int32_t motionEventAction = MOTION_EVENT_ACTION_MOVE;
|
|
dispatchTouch(when, device, policyFlags, & device->touchScreen.currentTouch,
|
|
currentIdBits, motionEventAction);
|
|
} else {
|
|
// There may be pointers going up and pointers going down at the same time when pointer
|
|
// ids are reported by the device driver.
|
|
BitSet32 upIdBits(lastIdBits.value & ~ currentIdBits.value);
|
|
BitSet32 downIdBits(currentIdBits.value & ~ lastIdBits.value);
|
|
BitSet32 activeIdBits(lastIdBits.value);
|
|
|
|
while (! upIdBits.isEmpty()) {
|
|
uint32_t upId = upIdBits.firstMarkedBit();
|
|
upIdBits.clearBit(upId);
|
|
BitSet32 oldActiveIdBits = activeIdBits;
|
|
activeIdBits.clearBit(upId);
|
|
|
|
int32_t motionEventAction;
|
|
if (activeIdBits.isEmpty()) {
|
|
motionEventAction = MOTION_EVENT_ACTION_UP;
|
|
} else {
|
|
motionEventAction = MOTION_EVENT_ACTION_POINTER_UP
|
|
| (upId << MOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
|
|
}
|
|
|
|
dispatchTouch(when, device, policyFlags, & device->touchScreen.lastTouch,
|
|
oldActiveIdBits, motionEventAction);
|
|
}
|
|
|
|
while (! downIdBits.isEmpty()) {
|
|
uint32_t downId = downIdBits.firstMarkedBit();
|
|
downIdBits.clearBit(downId);
|
|
BitSet32 oldActiveIdBits = activeIdBits;
|
|
activeIdBits.markBit(downId);
|
|
|
|
int32_t motionEventAction;
|
|
if (oldActiveIdBits.isEmpty()) {
|
|
motionEventAction = MOTION_EVENT_ACTION_DOWN;
|
|
device->touchScreen.downTime = when;
|
|
} else {
|
|
motionEventAction = MOTION_EVENT_ACTION_POINTER_DOWN
|
|
| (downId << MOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
|
|
}
|
|
|
|
dispatchTouch(when, device, policyFlags, & device->touchScreen.currentTouch,
|
|
activeIdBits, motionEventAction);
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputReader::dispatchTouch(nsecs_t when, InputDevice* device, uint32_t policyFlags,
|
|
InputDevice::TouchData* touch, BitSet32 idBits,
|
|
int32_t motionEventAction) {
|
|
int32_t orientedWidth, orientedHeight;
|
|
switch (mDisplayOrientation) {
|
|
case InputReaderPolicyInterface::ROTATION_90:
|
|
case InputReaderPolicyInterface::ROTATION_270:
|
|
orientedWidth = mDisplayHeight;
|
|
orientedHeight = mDisplayWidth;
|
|
break;
|
|
default:
|
|
orientedWidth = mDisplayWidth;
|
|
orientedHeight = mDisplayHeight;
|
|
break;
|
|
}
|
|
|
|
uint32_t pointerCount = 0;
|
|
int32_t pointerIds[MAX_POINTERS];
|
|
PointerCoords pointerCoords[MAX_POINTERS];
|
|
|
|
// Walk through the the active pointers and map touch screen coordinates (TouchData) into
|
|
// display coordinates (PointerCoords) and adjust for display orientation.
|
|
while (! idBits.isEmpty()) {
|
|
uint32_t id = idBits.firstMarkedBit();
|
|
idBits.clearBit(id);
|
|
uint32_t index = touch->idToIndex[id];
|
|
|
|
float x = (float(touch->pointers[index].x)
|
|
- device->touchScreen.parameters.xAxis.minValue)
|
|
* device->touchScreen.precalculated.xScale;
|
|
float y = (float(touch->pointers[index].y)
|
|
- device->touchScreen.parameters.yAxis.minValue)
|
|
* device->touchScreen.precalculated.yScale;
|
|
float pressure = (float(touch->pointers[index].pressure)
|
|
- device->touchScreen.parameters.pressureAxis.minValue)
|
|
* device->touchScreen.precalculated.pressureScale;
|
|
float size = (float(touch->pointers[index].size)
|
|
- device->touchScreen.parameters.sizeAxis.minValue)
|
|
* device->touchScreen.precalculated.sizeScale;
|
|
|
|
switch (mDisplayOrientation) {
|
|
case InputReaderPolicyInterface::ROTATION_90: {
|
|
float xTemp = x;
|
|
x = y;
|
|
y = mDisplayWidth - xTemp;
|
|
break;
|
|
}
|
|
case InputReaderPolicyInterface::ROTATION_180: {
|
|
x = mDisplayWidth - x;
|
|
y = mDisplayHeight - y;
|
|
break;
|
|
}
|
|
case InputReaderPolicyInterface::ROTATION_270: {
|
|
float xTemp = x;
|
|
x = mDisplayHeight - y;
|
|
y = xTemp;
|
|
break;
|
|
}
|
|
}
|
|
|
|
pointerIds[pointerCount] = int32_t(id);
|
|
|
|
pointerCoords[pointerCount].x = x;
|
|
pointerCoords[pointerCount].y = y;
|
|
pointerCoords[pointerCount].pressure = pressure;
|
|
pointerCoords[pointerCount].size = size;
|
|
|
|
pointerCount += 1;
|
|
}
|
|
|
|
// Check edge flags by looking only at the first pointer since the flags are
|
|
// global to the event.
|
|
// XXX Maybe we should revise the edge flags API to work on a per-pointer basis.
|
|
int32_t motionEventEdgeFlags = 0;
|
|
if (motionEventAction == MOTION_EVENT_ACTION_DOWN) {
|
|
if (pointerCoords[0].x <= 0) {
|
|
motionEventEdgeFlags |= MOTION_EVENT_EDGE_FLAG_LEFT;
|
|
} else if (pointerCoords[0].x >= orientedWidth) {
|
|
motionEventEdgeFlags |= MOTION_EVENT_EDGE_FLAG_RIGHT;
|
|
}
|
|
if (pointerCoords[0].y <= 0) {
|
|
motionEventEdgeFlags |= MOTION_EVENT_EDGE_FLAG_TOP;
|
|
} else if (pointerCoords[0].y >= orientedHeight) {
|
|
motionEventEdgeFlags |= MOTION_EVENT_EDGE_FLAG_BOTTOM;
|
|
}
|
|
}
|
|
|
|
nsecs_t downTime = device->touchScreen.downTime;
|
|
mDispatcher->notifyMotion(when, device->id, INPUT_EVENT_NATURE_TOUCH, policyFlags,
|
|
motionEventAction, globalMetaState(), motionEventEdgeFlags,
|
|
pointerCount, pointerIds, pointerCoords,
|
|
0, 0, downTime);
|
|
}
|
|
|
|
void InputReader::onTrackballStateChanged(nsecs_t when,
|
|
InputDevice* device) {
|
|
static const uint32_t DELTA_FIELDS =
|
|
InputDevice::TrackballState::Accumulator::FIELD_REL_X
|
|
| InputDevice::TrackballState::Accumulator::FIELD_REL_Y;
|
|
|
|
/* Refresh display properties so we can trackball moves according to display orientation */
|
|
|
|
if (! refreshDisplayProperties()) {
|
|
return;
|
|
}
|
|
|
|
/* Update device state */
|
|
|
|
uint32_t fields = device->trackball.accumulator.fields;
|
|
bool downChanged = fields & InputDevice::TrackballState::Accumulator::FIELD_BTN_MOUSE;
|
|
bool deltaChanged = fields & DELTA_FIELDS;
|
|
|
|
bool down;
|
|
if (downChanged) {
|
|
if (device->trackball.accumulator.btnMouse) {
|
|
device->trackball.current.down = true;
|
|
device->trackball.current.downTime = when;
|
|
down = true;
|
|
} else {
|
|
device->trackball.current.down = false;
|
|
down = false;
|
|
}
|
|
} else {
|
|
down = device->trackball.current.down;
|
|
}
|
|
|
|
/* Apply policy */
|
|
|
|
int32_t policyActions = mPolicy->interceptTrackball(when, downChanged, down, deltaChanged);
|
|
|
|
uint32_t policyFlags = 0;
|
|
if (! applyStandardInputDispatchPolicyActions(when, policyActions, & policyFlags)) {
|
|
return; // event dropped
|
|
}
|
|
|
|
/* Enqueue motion event for dispatch */
|
|
|
|
int32_t motionEventAction;
|
|
if (downChanged) {
|
|
motionEventAction = down ? MOTION_EVENT_ACTION_DOWN : MOTION_EVENT_ACTION_UP;
|
|
} else {
|
|
motionEventAction = MOTION_EVENT_ACTION_MOVE;
|
|
}
|
|
|
|
int32_t pointerId = 0;
|
|
PointerCoords pointerCoords;
|
|
pointerCoords.x = fields & InputDevice::TrackballState::Accumulator::FIELD_REL_X
|
|
? device->trackball.accumulator.relX * device->trackball.precalculated.xScale : 0;
|
|
pointerCoords.y = fields & InputDevice::TrackballState::Accumulator::FIELD_REL_Y
|
|
? device->trackball.accumulator.relY * device->trackball.precalculated.yScale : 0;
|
|
pointerCoords.pressure = 1.0f; // XXX Consider making this 1.0f if down, 0 otherwise.
|
|
pointerCoords.size = 0;
|
|
|
|
float temp;
|
|
switch (mDisplayOrientation) {
|
|
case InputReaderPolicyInterface::ROTATION_90:
|
|
temp = pointerCoords.x;
|
|
pointerCoords.x = pointerCoords.y;
|
|
pointerCoords.y = - temp;
|
|
break;
|
|
|
|
case InputReaderPolicyInterface::ROTATION_180:
|
|
pointerCoords.x = - pointerCoords.x;
|
|
pointerCoords.y = - pointerCoords.y;
|
|
break;
|
|
|
|
case InputReaderPolicyInterface::ROTATION_270:
|
|
temp = pointerCoords.x;
|
|
pointerCoords.x = - pointerCoords.y;
|
|
pointerCoords.y = temp;
|
|
break;
|
|
}
|
|
|
|
mDispatcher->notifyMotion(when, device->id, INPUT_EVENT_NATURE_TRACKBALL, policyFlags,
|
|
motionEventAction, globalMetaState(), MOTION_EVENT_EDGE_FLAG_NONE,
|
|
1, & pointerId, & pointerCoords,
|
|
device->trackball.precalculated.xPrecision,
|
|
device->trackball.precalculated.yPrecision,
|
|
device->trackball.current.downTime);
|
|
}
|
|
|
|
void InputReader::onConfigurationChanged(nsecs_t when) {
|
|
// Reset global meta state because it depends on the list of all configured devices.
|
|
resetGlobalMetaState();
|
|
|
|
// Reset virtual keys, just in case.
|
|
updateExportedVirtualKeyState();
|
|
|
|
// Update input configuration.
|
|
updateExportedInputConfiguration();
|
|
|
|
// Enqueue configuration changed.
|
|
mDispatcher->notifyConfigurationChanged(when);
|
|
}
|
|
|
|
bool InputReader::applyStandardInputDispatchPolicyActions(nsecs_t when,
|
|
int32_t policyActions, uint32_t* policyFlags) {
|
|
if (policyActions & InputReaderPolicyInterface::ACTION_APP_SWITCH_COMING) {
|
|
mDispatcher->notifyAppSwitchComing(when);
|
|
}
|
|
|
|
if (policyActions & InputReaderPolicyInterface::ACTION_WOKE_HERE) {
|
|
*policyFlags |= POLICY_FLAG_WOKE_HERE;
|
|
}
|
|
|
|
if (policyActions & InputReaderPolicyInterface::ACTION_BRIGHT_HERE) {
|
|
*policyFlags |= POLICY_FLAG_BRIGHT_HERE;
|
|
}
|
|
|
|
if (policyActions & InputReaderPolicyInterface::ACTION_INTERCEPT_DISPATCH) {
|
|
*policyFlags |= POLICY_FLAG_INTERCEPT_DISPATCH;
|
|
}
|
|
|
|
return policyActions & InputReaderPolicyInterface::ACTION_DISPATCH;
|
|
}
|
|
|
|
void InputReader::resetDisplayProperties() {
|
|
mDisplayWidth = mDisplayHeight = -1;
|
|
mDisplayOrientation = -1;
|
|
}
|
|
|
|
bool InputReader::refreshDisplayProperties() {
|
|
int32_t newWidth, newHeight, newOrientation;
|
|
if (mPolicy->getDisplayInfo(0, & newWidth, & newHeight, & newOrientation)) {
|
|
if (newWidth != mDisplayWidth || newHeight != mDisplayHeight) {
|
|
LOGD("Display size changed from %dx%d to %dx%d, updating device configuration",
|
|
mDisplayWidth, mDisplayHeight, newWidth, newHeight);
|
|
|
|
mDisplayWidth = newWidth;
|
|
mDisplayHeight = newHeight;
|
|
|
|
for (size_t i = 0; i < mDevices.size(); i++) {
|
|
configureDeviceForCurrentDisplaySize(mDevices.valueAt(i));
|
|
}
|
|
}
|
|
|
|
mDisplayOrientation = newOrientation;
|
|
return true;
|
|
} else {
|
|
resetDisplayProperties();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
InputDevice* InputReader::getDevice(int32_t deviceId) {
|
|
ssize_t index = mDevices.indexOfKey(deviceId);
|
|
return index >= 0 ? mDevices.valueAt((size_t) index) : NULL;
|
|
}
|
|
|
|
InputDevice* InputReader::getNonIgnoredDevice(int32_t deviceId) {
|
|
InputDevice* device = getDevice(deviceId);
|
|
return device && ! device->ignored ? device : NULL;
|
|
}
|
|
|
|
void InputReader::addDevice(nsecs_t when, int32_t deviceId) {
|
|
uint32_t classes = mEventHub->getDeviceClasses(deviceId);
|
|
String8 name = mEventHub->getDeviceName(deviceId);
|
|
InputDevice* device = new InputDevice(deviceId, classes, name);
|
|
|
|
if (classes != 0) {
|
|
LOGI("Device added: id=0x%x, name=%s, classes=%02x", device->id,
|
|
device->name.string(), device->classes);
|
|
|
|
configureDevice(device);
|
|
} else {
|
|
LOGI("Device added: id=0x%x, name=%s (ignored non-input device)", device->id,
|
|
device->name.string());
|
|
|
|
device->ignored = true;
|
|
}
|
|
|
|
device->reset();
|
|
|
|
mDevices.add(deviceId, device);
|
|
|
|
if (! device->ignored) {
|
|
onConfigurationChanged(when);
|
|
}
|
|
}
|
|
|
|
void InputReader::removeDevice(nsecs_t when, InputDevice* device) {
|
|
mDevices.removeItem(device->id);
|
|
|
|
if (! device->ignored) {
|
|
LOGI("Device removed: id=0x%x, name=%s, classes=%02x", device->id,
|
|
device->name.string(), device->classes);
|
|
|
|
onConfigurationChanged(when);
|
|
} else {
|
|
LOGI("Device removed: id=0x%x, name=%s (ignored non-input device)", device->id,
|
|
device->name.string());
|
|
}
|
|
|
|
delete device;
|
|
}
|
|
|
|
void InputReader::configureDevice(InputDevice* device) {
|
|
if (device->isMultiTouchScreen()) {
|
|
configureAbsoluteAxisInfo(device, ABS_MT_POSITION_X, "X",
|
|
& device->touchScreen.parameters.xAxis);
|
|
configureAbsoluteAxisInfo(device, ABS_MT_POSITION_Y, "Y",
|
|
& device->touchScreen.parameters.yAxis);
|
|
configureAbsoluteAxisInfo(device, ABS_MT_TOUCH_MAJOR, "Pressure",
|
|
& device->touchScreen.parameters.pressureAxis);
|
|
configureAbsoluteAxisInfo(device, ABS_MT_WIDTH_MAJOR, "Size",
|
|
& device->touchScreen.parameters.sizeAxis);
|
|
} else if (device->isSingleTouchScreen()) {
|
|
configureAbsoluteAxisInfo(device, ABS_X, "X",
|
|
& device->touchScreen.parameters.xAxis);
|
|
configureAbsoluteAxisInfo(device, ABS_Y, "Y",
|
|
& device->touchScreen.parameters.yAxis);
|
|
configureAbsoluteAxisInfo(device, ABS_PRESSURE, "Pressure",
|
|
& device->touchScreen.parameters.pressureAxis);
|
|
configureAbsoluteAxisInfo(device, ABS_TOOL_WIDTH, "Size",
|
|
& device->touchScreen.parameters.sizeAxis);
|
|
}
|
|
|
|
if (device->isTouchScreen()) {
|
|
device->touchScreen.parameters.useBadTouchFilter =
|
|
mPolicy->filterTouchEvents();
|
|
device->touchScreen.parameters.useAveragingTouchFilter =
|
|
mPolicy->filterTouchEvents();
|
|
device->touchScreen.parameters.useJumpyTouchFilter =
|
|
mPolicy->filterJumpyTouchEvents();
|
|
|
|
device->touchScreen.precalculated.pressureScale =
|
|
1.0f / device->touchScreen.parameters.pressureAxis.range;
|
|
device->touchScreen.precalculated.sizeScale =
|
|
1.0f / device->touchScreen.parameters.sizeAxis.range;
|
|
}
|
|
|
|
if (device->isTrackball()) {
|
|
device->trackball.precalculated.xPrecision = TRACKBALL_MOVEMENT_THRESHOLD;
|
|
device->trackball.precalculated.yPrecision = TRACKBALL_MOVEMENT_THRESHOLD;
|
|
device->trackball.precalculated.xScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD;
|
|
device->trackball.precalculated.yScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD;
|
|
}
|
|
|
|
configureDeviceForCurrentDisplaySize(device);
|
|
}
|
|
|
|
void InputReader::configureDeviceForCurrentDisplaySize(InputDevice* device) {
|
|
if (device->isTouchScreen()) {
|
|
if (mDisplayWidth < 0) {
|
|
LOGD("Skipping part of touch screen configuration since display size is unknown.");
|
|
} else {
|
|
LOGI("Device configured: id=0x%x, name=%s (display size was changed)", device->id,
|
|
device->name.string());
|
|
configureVirtualKeys(device);
|
|
|
|
device->touchScreen.precalculated.xScale =
|
|
float(mDisplayWidth) / device->touchScreen.parameters.xAxis.range;
|
|
device->touchScreen.precalculated.yScale =
|
|
float(mDisplayHeight) / device->touchScreen.parameters.yAxis.range;
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputReader::configureVirtualKeys(InputDevice* device) {
|
|
device->touchScreen.virtualKeys.clear();
|
|
|
|
Vector<InputReaderPolicyInterface::VirtualKeyDefinition> virtualKeyDefinitions;
|
|
mPolicy->getVirtualKeyDefinitions(device->name, virtualKeyDefinitions);
|
|
if (virtualKeyDefinitions.size() == 0) {
|
|
return;
|
|
}
|
|
|
|
device->touchScreen.virtualKeys.setCapacity(virtualKeyDefinitions.size());
|
|
|
|
int32_t touchScreenLeft = device->touchScreen.parameters.xAxis.minValue;
|
|
int32_t touchScreenTop = device->touchScreen.parameters.yAxis.minValue;
|
|
int32_t touchScreenWidth = device->touchScreen.parameters.xAxis.range;
|
|
int32_t touchScreenHeight = device->touchScreen.parameters.yAxis.range;
|
|
|
|
for (size_t i = 0; i < virtualKeyDefinitions.size(); i++) {
|
|
const InputReaderPolicyInterface::VirtualKeyDefinition& virtualKeyDefinition =
|
|
virtualKeyDefinitions[i];
|
|
|
|
device->touchScreen.virtualKeys.add();
|
|
InputDevice::VirtualKey& virtualKey =
|
|
device->touchScreen.virtualKeys.editTop();
|
|
|
|
virtualKey.scanCode = virtualKeyDefinition.scanCode;
|
|
int32_t keyCode;
|
|
uint32_t flags;
|
|
if (mEventHub->scancodeToKeycode(device->id, virtualKey.scanCode,
|
|
& keyCode, & flags)) {
|
|
LOGI(" VirtualKey %d: could not obtain key code, ignoring", virtualKey.scanCode);
|
|
device->touchScreen.virtualKeys.pop(); // drop the key
|
|
continue;
|
|
}
|
|
|
|
virtualKey.keyCode = keyCode;
|
|
virtualKey.flags = flags;
|
|
|
|
// convert the key definition's display coordinates into touch coordinates for a hit box
|
|
int32_t halfWidth = virtualKeyDefinition.width / 2;
|
|
int32_t halfHeight = virtualKeyDefinition.height / 2;
|
|
|
|
virtualKey.hitLeft = (virtualKeyDefinition.centerX - halfWidth)
|
|
* touchScreenWidth / mDisplayWidth + touchScreenLeft;
|
|
virtualKey.hitRight= (virtualKeyDefinition.centerX + halfWidth)
|
|
* touchScreenWidth / mDisplayWidth + touchScreenLeft;
|
|
virtualKey.hitTop = (virtualKeyDefinition.centerY - halfHeight)
|
|
* touchScreenHeight / mDisplayHeight + touchScreenTop;
|
|
virtualKey.hitBottom = (virtualKeyDefinition.centerY + halfHeight)
|
|
* touchScreenHeight / mDisplayHeight + touchScreenTop;
|
|
|
|
LOGI(" VirtualKey %d: keyCode=%d hitLeft=%d hitRight=%d hitTop=%d hitBottom=%d",
|
|
virtualKey.scanCode, virtualKey.keyCode,
|
|
virtualKey.hitLeft, virtualKey.hitRight, virtualKey.hitTop, virtualKey.hitBottom);
|
|
}
|
|
}
|
|
|
|
void InputReader::configureAbsoluteAxisInfo(InputDevice* device,
|
|
int axis, const char* name, InputDevice::AbsoluteAxisInfo* out) {
|
|
if (! mEventHub->getAbsoluteInfo(device->id, axis,
|
|
& out->minValue, & out->maxValue, & out->flat, &out->fuzz)) {
|
|
out->range = out->maxValue - out->minValue;
|
|
if (out->range != 0) {
|
|
LOGI(" %s: min=%d max=%d flat=%d fuzz=%d",
|
|
name, out->minValue, out->maxValue, out->flat, out->fuzz);
|
|
return;
|
|
}
|
|
}
|
|
|
|
out->minValue = 0;
|
|
out->maxValue = 0;
|
|
out->flat = 0;
|
|
out->fuzz = 0;
|
|
out->range = 0;
|
|
LOGI(" %s: unknown axis values, setting to zero", name);
|
|
}
|
|
|
|
void InputReader::configureExcludedDevices() {
|
|
Vector<String8> excludedDeviceNames;
|
|
mPolicy->getExcludedDeviceNames(excludedDeviceNames);
|
|
|
|
for (size_t i = 0; i < excludedDeviceNames.size(); i++) {
|
|
mEventHub->addExcludedDevice(excludedDeviceNames[i]);
|
|
}
|
|
}
|
|
|
|
void InputReader::resetGlobalMetaState() {
|
|
mGlobalMetaState = -1;
|
|
}
|
|
|
|
int32_t InputReader::globalMetaState() {
|
|
if (mGlobalMetaState == -1) {
|
|
mGlobalMetaState = 0;
|
|
for (size_t i = 0; i < mDevices.size(); i++) {
|
|
InputDevice* device = mDevices.valueAt(i);
|
|
if (device->isKeyboard()) {
|
|
mGlobalMetaState |= device->keyboard.current.metaState;
|
|
}
|
|
}
|
|
}
|
|
return mGlobalMetaState;
|
|
}
|
|
|
|
void InputReader::updateExportedVirtualKeyState() {
|
|
int32_t keyCode = -1, scanCode = -1;
|
|
|
|
for (size_t i = 0; i < mDevices.size(); i++) {
|
|
InputDevice* device = mDevices.valueAt(i);
|
|
if (device->isTouchScreen()) {
|
|
if (device->touchScreen.currentVirtualKey.down) {
|
|
keyCode = device->touchScreen.currentVirtualKey.keyCode;
|
|
scanCode = device->touchScreen.currentVirtualKey.scanCode;
|
|
}
|
|
}
|
|
}
|
|
|
|
{ // acquire exported state lock
|
|
AutoMutex _l(mExportedStateLock);
|
|
|
|
mExportedVirtualKeyCode = keyCode;
|
|
mExportedVirtualScanCode = scanCode;
|
|
} // release exported state lock
|
|
}
|
|
|
|
bool InputReader::getCurrentVirtualKey(int32_t* outKeyCode, int32_t* outScanCode) const {
|
|
{ // acquire exported state lock
|
|
AutoMutex _l(mExportedStateLock);
|
|
|
|
*outKeyCode = mExportedVirtualKeyCode;
|
|
*outScanCode = mExportedVirtualScanCode;
|
|
return mExportedVirtualKeyCode != -1;
|
|
} // release exported state lock
|
|
}
|
|
|
|
void InputReader::updateExportedInputConfiguration() {
|
|
int32_t touchScreenConfig = InputConfiguration::TOUCHSCREEN_NOTOUCH;
|
|
int32_t keyboardConfig = InputConfiguration::KEYBOARD_NOKEYS;
|
|
int32_t navigationConfig = InputConfiguration::NAVIGATION_NONAV;
|
|
|
|
for (size_t i = 0; i < mDevices.size(); i++) {
|
|
InputDevice* device = mDevices.valueAt(i);
|
|
int32_t deviceClasses = device->classes;
|
|
|
|
if (deviceClasses & INPUT_DEVICE_CLASS_TOUCHSCREEN) {
|
|
touchScreenConfig = InputConfiguration::TOUCHSCREEN_FINGER;
|
|
}
|
|
if (deviceClasses & INPUT_DEVICE_CLASS_ALPHAKEY) {
|
|
keyboardConfig = InputConfiguration::KEYBOARD_QWERTY;
|
|
}
|
|
if (deviceClasses & INPUT_DEVICE_CLASS_TRACKBALL) {
|
|
navigationConfig = InputConfiguration::NAVIGATION_TRACKBALL;
|
|
} else if (deviceClasses & INPUT_DEVICE_CLASS_DPAD) {
|
|
navigationConfig = InputConfiguration::NAVIGATION_DPAD;
|
|
}
|
|
}
|
|
|
|
{ // acquire exported state lock
|
|
AutoMutex _l(mExportedStateLock);
|
|
|
|
mExportedInputConfiguration.touchScreen = touchScreenConfig;
|
|
mExportedInputConfiguration.keyboard = keyboardConfig;
|
|
mExportedInputConfiguration.navigation = navigationConfig;
|
|
} // release exported state lock
|
|
}
|
|
|
|
void InputReader::getCurrentInputConfiguration(InputConfiguration* outConfiguration) const {
|
|
{ // acquire exported state lock
|
|
AutoMutex _l(mExportedStateLock);
|
|
|
|
*outConfiguration = mExportedInputConfiguration;
|
|
} // release exported state lock
|
|
}
|
|
|
|
int32_t InputReader::getCurrentScanCodeState(int32_t deviceId, int32_t deviceClasses,
|
|
int32_t scanCode) const {
|
|
{ // acquire exported state lock
|
|
AutoMutex _l(mExportedStateLock);
|
|
|
|
if (mExportedVirtualScanCode == scanCode) {
|
|
return KEY_STATE_VIRTUAL;
|
|
}
|
|
} // release exported state lock
|
|
|
|
return mEventHub->getScanCodeState(deviceId, deviceClasses, scanCode);
|
|
}
|
|
|
|
int32_t InputReader::getCurrentKeyCodeState(int32_t deviceId, int32_t deviceClasses,
|
|
int32_t keyCode) const {
|
|
{ // acquire exported state lock
|
|
AutoMutex _l(mExportedStateLock);
|
|
|
|
if (mExportedVirtualKeyCode == keyCode) {
|
|
return KEY_STATE_VIRTUAL;
|
|
}
|
|
} // release exported state lock
|
|
|
|
return mEventHub->getKeyCodeState(deviceId, deviceClasses, keyCode);
|
|
}
|
|
|
|
int32_t InputReader::getCurrentSwitchState(int32_t deviceId, int32_t deviceClasses,
|
|
int32_t sw) const {
|
|
return mEventHub->getSwitchState(deviceId, deviceClasses, sw);
|
|
}
|
|
|
|
bool InputReader::hasKeys(size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) const {
|
|
return mEventHub->hasKeys(numCodes, keyCodes, outFlags);
|
|
}
|
|
|
|
|
|
// --- InputReaderThread ---
|
|
|
|
InputReaderThread::InputReaderThread(const sp<InputReaderInterface>& reader) :
|
|
Thread(/*canCallJava*/ true), mReader(reader) {
|
|
}
|
|
|
|
InputReaderThread::~InputReaderThread() {
|
|
}
|
|
|
|
bool InputReaderThread::threadLoop() {
|
|
mReader->loopOnce();
|
|
return true;
|
|
}
|
|
|
|
} // namespace android
|