2634 lines
90 KiB
C++
2634 lines
90 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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#include <math.h>
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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 AKEYCODE_ALT_LEFT:
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mask = AMETA_ALT_LEFT_ON;
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break;
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case AKEYCODE_ALT_RIGHT:
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mask = AMETA_ALT_RIGHT_ON;
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break;
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case AKEYCODE_SHIFT_LEFT:
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mask = AMETA_SHIFT_LEFT_ON;
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break;
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case AKEYCODE_SHIFT_RIGHT:
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mask = AMETA_SHIFT_RIGHT_ON;
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break;
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case AKEYCODE_SYM:
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mask = AMETA_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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& ~ (AMETA_ALT_ON | AMETA_SHIFT_ON);
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if (newMetaState & (AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON)) {
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newMetaState |= AMETA_ALT_ON;
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}
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if (newMetaState & (AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_RIGHT_ON)) {
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newMetaState |= AMETA_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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{ AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT },
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{ AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN },
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{ AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT },
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{ AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT, AKEYCODE_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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static inline bool sourcesMatchMask(uint32_t sources, uint32_t sourceMask) {
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return (sources & sourceMask & ~ AINPUT_SOURCE_CLASS_MASK) != 0;
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}
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// --- InputReader ---
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InputReader::InputReader(const sp<EventHubInterface>& eventHub,
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const sp<InputReaderPolicyInterface>& policy,
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const sp<InputDispatcherInterface>& dispatcher) :
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mEventHub(eventHub), mPolicy(policy), mDispatcher(dispatcher),
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mGlobalMetaState(0) {
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configureExcludedDevices();
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updateGlobalMetaState();
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updateInputConfiguration();
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}
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InputReader::~InputReader() {
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for (size_t i = 0; i < mDevices.size(); i++) {
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delete mDevices.valueAt(i);
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}
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}
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void InputReader::loopOnce() {
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RawEvent rawEvent;
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mEventHub->getEvent(& rawEvent);
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#if DEBUG_RAW_EVENTS
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LOGD("Input event: device=0x%x type=0x%x scancode=%d keycode=%d value=%d",
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rawEvent.deviceId, rawEvent.type, rawEvent.scanCode, rawEvent.keyCode,
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rawEvent.value);
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#endif
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process(& rawEvent);
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}
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void InputReader::process(const RawEvent* rawEvent) {
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switch (rawEvent->type) {
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case EventHubInterface::DEVICE_ADDED:
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addDevice(rawEvent->when, rawEvent->deviceId);
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break;
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case EventHubInterface::DEVICE_REMOVED:
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removeDevice(rawEvent->when, rawEvent->deviceId);
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break;
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default:
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consumeEvent(rawEvent);
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break;
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}
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}
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void InputReader::addDevice(nsecs_t when, int32_t deviceId) {
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String8 name = mEventHub->getDeviceName(deviceId);
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uint32_t classes = mEventHub->getDeviceClasses(deviceId);
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InputDevice* device = createDevice(deviceId, name, classes);
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device->configure();
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bool added = false;
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{ // acquire device registry writer lock
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RWLock::AutoWLock _wl(mDeviceRegistryLock);
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ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
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if (deviceIndex < 0) {
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mDevices.add(deviceId, device);
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added = true;
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}
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} // release device registry writer lock
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if (! added) {
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LOGW("Ignoring spurious device added event for deviceId %d.", deviceId);
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delete device;
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return;
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}
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if (device->isIgnored()) {
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LOGI("Device added: id=0x%x, name=%s (ignored non-input device)",
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deviceId, name.string());
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} else {
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LOGI("Device added: id=0x%x, name=%s, sources=%08x",
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deviceId, name.string(), device->getSources());
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}
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handleConfigurationChanged(when);
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}
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void InputReader::removeDevice(nsecs_t when, int32_t deviceId) {
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bool removed = false;
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InputDevice* device = NULL;
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{ // acquire device registry writer lock
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RWLock::AutoWLock _wl(mDeviceRegistryLock);
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ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
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if (deviceIndex >= 0) {
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device = mDevices.valueAt(deviceIndex);
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mDevices.removeItemsAt(deviceIndex, 1);
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removed = true;
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}
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} // release device registry writer lock
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if (! removed) {
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LOGW("Ignoring spurious device removed event for deviceId %d.", deviceId);
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return;
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}
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device->reset();
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if (device->isIgnored()) {
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LOGI("Device removed: id=0x%x, name=%s (ignored non-input device)",
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device->getId(), device->getName().string());
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} else {
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LOGI("Device removed: id=0x%x, name=%s, sources=%08x",
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device->getId(), device->getName().string(), device->getSources());
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}
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delete device;
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handleConfigurationChanged(when);
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}
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InputDevice* InputReader::createDevice(int32_t deviceId, const String8& name, uint32_t classes) {
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InputDevice* device = new InputDevice(this, deviceId, name);
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const int32_t associatedDisplayId = 0; // FIXME: hardcoded for current single-display devices
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// Switch-like devices.
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if (classes & INPUT_DEVICE_CLASS_SWITCH) {
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device->addMapper(new SwitchInputMapper(device));
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}
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// Keyboard-like devices.
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uint32_t keyboardSources = 0;
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int32_t keyboardType = AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC;
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if (classes & INPUT_DEVICE_CLASS_KEYBOARD) {
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keyboardSources |= AINPUT_SOURCE_KEYBOARD;
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}
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if (classes & INPUT_DEVICE_CLASS_ALPHAKEY) {
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keyboardType = AINPUT_KEYBOARD_TYPE_ALPHABETIC;
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}
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if (classes & INPUT_DEVICE_CLASS_DPAD) {
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keyboardSources |= AINPUT_SOURCE_DPAD;
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}
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if (classes & INPUT_DEVICE_CLASS_GAMEPAD) {
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keyboardSources |= AINPUT_SOURCE_GAMEPAD;
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}
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if (keyboardSources != 0) {
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device->addMapper(new KeyboardInputMapper(device,
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associatedDisplayId, keyboardSources, keyboardType));
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}
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// Trackball-like devices.
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if (classes & INPUT_DEVICE_CLASS_TRACKBALL) {
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device->addMapper(new TrackballInputMapper(device, associatedDisplayId));
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}
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// Touchscreen-like devices.
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if (classes & INPUT_DEVICE_CLASS_TOUCHSCREEN_MT) {
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device->addMapper(new MultiTouchInputMapper(device, associatedDisplayId));
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} else if (classes & INPUT_DEVICE_CLASS_TOUCHSCREEN) {
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device->addMapper(new SingleTouchInputMapper(device, associatedDisplayId));
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}
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return device;
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}
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void InputReader::consumeEvent(const RawEvent* rawEvent) {
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int32_t deviceId = rawEvent->deviceId;
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{ // acquire device registry reader lock
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RWLock::AutoRLock _rl(mDeviceRegistryLock);
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ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
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if (deviceIndex < 0) {
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LOGW("Discarding event for unknown deviceId %d.", deviceId);
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return;
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}
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InputDevice* device = mDevices.valueAt(deviceIndex);
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if (device->isIgnored()) {
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//LOGD("Discarding event for ignored deviceId %d.", deviceId);
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return;
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}
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device->process(rawEvent);
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} // release device registry reader lock
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}
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void InputReader::handleConfigurationChanged(nsecs_t when) {
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// Reset global meta state because it depends on the list of all configured devices.
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updateGlobalMetaState();
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// Update input configuration.
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updateInputConfiguration();
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// Enqueue configuration changed.
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mDispatcher->notifyConfigurationChanged(when);
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}
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void InputReader::configureExcludedDevices() {
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Vector<String8> excludedDeviceNames;
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mPolicy->getExcludedDeviceNames(excludedDeviceNames);
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for (size_t i = 0; i < excludedDeviceNames.size(); i++) {
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mEventHub->addExcludedDevice(excludedDeviceNames[i]);
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}
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}
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void InputReader::updateGlobalMetaState() {
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{ // acquire state lock
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AutoMutex _l(mStateLock);
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mGlobalMetaState = 0;
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{ // acquire device registry reader lock
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RWLock::AutoRLock _rl(mDeviceRegistryLock);
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for (size_t i = 0; i < mDevices.size(); i++) {
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InputDevice* device = mDevices.valueAt(i);
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mGlobalMetaState |= device->getMetaState();
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}
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} // release device registry reader lock
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} // release state lock
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}
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int32_t InputReader::getGlobalMetaState() {
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{ // acquire state lock
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AutoMutex _l(mStateLock);
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return mGlobalMetaState;
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} // release state lock
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}
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void InputReader::updateInputConfiguration() {
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{ // acquire state lock
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AutoMutex _l(mStateLock);
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int32_t touchScreenConfig = InputConfiguration::TOUCHSCREEN_NOTOUCH;
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int32_t keyboardConfig = InputConfiguration::KEYBOARD_NOKEYS;
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int32_t navigationConfig = InputConfiguration::NAVIGATION_NONAV;
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{ // acquire device registry reader lock
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RWLock::AutoRLock _rl(mDeviceRegistryLock);
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InputDeviceInfo deviceInfo;
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for (size_t i = 0; i < mDevices.size(); i++) {
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InputDevice* device = mDevices.valueAt(i);
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device->getDeviceInfo(& deviceInfo);
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uint32_t sources = deviceInfo.getSources();
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if ((sources & AINPUT_SOURCE_TOUCHSCREEN) == AINPUT_SOURCE_TOUCHSCREEN) {
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touchScreenConfig = InputConfiguration::TOUCHSCREEN_FINGER;
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}
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if ((sources & AINPUT_SOURCE_TRACKBALL) == AINPUT_SOURCE_TRACKBALL) {
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navigationConfig = InputConfiguration::NAVIGATION_TRACKBALL;
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} else if ((sources & AINPUT_SOURCE_DPAD) == AINPUT_SOURCE_DPAD) {
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navigationConfig = InputConfiguration::NAVIGATION_DPAD;
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}
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if (deviceInfo.getKeyboardType() == AINPUT_KEYBOARD_TYPE_ALPHABETIC) {
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keyboardConfig = InputConfiguration::KEYBOARD_QWERTY;
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}
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}
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} // release device registry reader lock
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mInputConfiguration.touchScreen = touchScreenConfig;
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mInputConfiguration.keyboard = keyboardConfig;
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mInputConfiguration.navigation = navigationConfig;
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} // release state lock
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}
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void InputReader::getInputConfiguration(InputConfiguration* outConfiguration) {
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{ // acquire state lock
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AutoMutex _l(mStateLock);
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*outConfiguration = mInputConfiguration;
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} // release state lock
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}
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status_t InputReader::getInputDeviceInfo(int32_t deviceId, InputDeviceInfo* outDeviceInfo) {
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{ // acquire device registry reader lock
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RWLock::AutoRLock _rl(mDeviceRegistryLock);
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ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
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if (deviceIndex < 0) {
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return NAME_NOT_FOUND;
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}
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InputDevice* device = mDevices.valueAt(deviceIndex);
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if (device->isIgnored()) {
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return NAME_NOT_FOUND;
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}
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device->getDeviceInfo(outDeviceInfo);
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return OK;
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} // release device registy reader lock
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}
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void InputReader::getInputDeviceIds(Vector<int32_t>& outDeviceIds) {
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outDeviceIds.clear();
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{ // acquire device registry reader lock
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RWLock::AutoRLock _rl(mDeviceRegistryLock);
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size_t numDevices = mDevices.size();
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for (size_t i = 0; i < numDevices; i++) {
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InputDevice* device = mDevices.valueAt(i);
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if (! device->isIgnored()) {
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outDeviceIds.add(device->getId());
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}
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}
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} // release device registy reader lock
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}
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int32_t InputReader::getKeyCodeState(int32_t deviceId, uint32_t sourceMask,
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int32_t keyCode) {
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return getState(deviceId, sourceMask, keyCode, & InputDevice::getKeyCodeState);
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}
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int32_t InputReader::getScanCodeState(int32_t deviceId, uint32_t sourceMask,
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int32_t scanCode) {
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return getState(deviceId, sourceMask, scanCode, & InputDevice::getScanCodeState);
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}
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int32_t InputReader::getSwitchState(int32_t deviceId, uint32_t sourceMask, int32_t switchCode) {
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return getState(deviceId, sourceMask, switchCode, & InputDevice::getSwitchState);
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}
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int32_t InputReader::getState(int32_t deviceId, uint32_t sourceMask, int32_t code,
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GetStateFunc getStateFunc) {
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{ // acquire device registry reader lock
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RWLock::AutoRLock _rl(mDeviceRegistryLock);
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int32_t result = AKEY_STATE_UNKNOWN;
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if (deviceId >= 0) {
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ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
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if (deviceIndex >= 0) {
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InputDevice* device = mDevices.valueAt(deviceIndex);
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if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) {
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result = (device->*getStateFunc)(sourceMask, code);
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}
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}
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} else {
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size_t numDevices = mDevices.size();
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for (size_t i = 0; i < numDevices; i++) {
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InputDevice* device = mDevices.valueAt(i);
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if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) {
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result = (device->*getStateFunc)(sourceMask, code);
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if (result >= AKEY_STATE_DOWN) {
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return result;
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}
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}
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}
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}
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return result;
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} // release device registy reader lock
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}
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bool InputReader::hasKeys(int32_t deviceId, uint32_t sourceMask,
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size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) {
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memset(outFlags, 0, numCodes);
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return markSupportedKeyCodes(deviceId, sourceMask, numCodes, keyCodes, outFlags);
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}
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bool InputReader::markSupportedKeyCodes(int32_t deviceId, uint32_t sourceMask, size_t numCodes,
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const int32_t* keyCodes, uint8_t* outFlags) {
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{ // acquire device registry reader lock
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RWLock::AutoRLock _rl(mDeviceRegistryLock);
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bool result = false;
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if (deviceId >= 0) {
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ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
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if (deviceIndex >= 0) {
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InputDevice* device = mDevices.valueAt(deviceIndex);
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if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) {
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result = device->markSupportedKeyCodes(sourceMask,
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numCodes, keyCodes, outFlags);
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}
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}
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} else {
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size_t numDevices = mDevices.size();
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for (size_t i = 0; i < numDevices; i++) {
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InputDevice* device = mDevices.valueAt(i);
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if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) {
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result |= device->markSupportedKeyCodes(sourceMask,
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numCodes, keyCodes, outFlags);
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}
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}
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}
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return result;
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} // release device registy reader lock
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}
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// --- InputReaderThread ---
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InputReaderThread::InputReaderThread(const sp<InputReaderInterface>& reader) :
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Thread(/*canCallJava*/ true), mReader(reader) {
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}
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|
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InputReaderThread::~InputReaderThread() {
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}
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|
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bool InputReaderThread::threadLoop() {
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mReader->loopOnce();
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return true;
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}
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// --- InputDevice ---
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|
|
|
InputDevice::InputDevice(InputReaderContext* context, int32_t id, const String8& name) :
|
|
mContext(context), mId(id), mName(name), mSources(0) {
|
|
}
|
|
|
|
InputDevice::~InputDevice() {
|
|
size_t numMappers = mMappers.size();
|
|
for (size_t i = 0; i < numMappers; i++) {
|
|
delete mMappers[i];
|
|
}
|
|
mMappers.clear();
|
|
}
|
|
|
|
void InputDevice::addMapper(InputMapper* mapper) {
|
|
mMappers.add(mapper);
|
|
}
|
|
|
|
void InputDevice::configure() {
|
|
mSources = 0;
|
|
|
|
size_t numMappers = mMappers.size();
|
|
for (size_t i = 0; i < numMappers; i++) {
|
|
InputMapper* mapper = mMappers[i];
|
|
mapper->configure();
|
|
mSources |= mapper->getSources();
|
|
}
|
|
}
|
|
|
|
void InputDevice::reset() {
|
|
size_t numMappers = mMappers.size();
|
|
for (size_t i = 0; i < numMappers; i++) {
|
|
InputMapper* mapper = mMappers[i];
|
|
mapper->reset();
|
|
}
|
|
}
|
|
|
|
void InputDevice::process(const RawEvent* rawEvent) {
|
|
size_t numMappers = mMappers.size();
|
|
for (size_t i = 0; i < numMappers; i++) {
|
|
InputMapper* mapper = mMappers[i];
|
|
mapper->process(rawEvent);
|
|
}
|
|
}
|
|
|
|
void InputDevice::getDeviceInfo(InputDeviceInfo* outDeviceInfo) {
|
|
outDeviceInfo->initialize(mId, mName);
|
|
|
|
size_t numMappers = mMappers.size();
|
|
for (size_t i = 0; i < numMappers; i++) {
|
|
InputMapper* mapper = mMappers[i];
|
|
mapper->populateDeviceInfo(outDeviceInfo);
|
|
}
|
|
}
|
|
|
|
int32_t InputDevice::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) {
|
|
return getState(sourceMask, keyCode, & InputMapper::getKeyCodeState);
|
|
}
|
|
|
|
int32_t InputDevice::getScanCodeState(uint32_t sourceMask, int32_t scanCode) {
|
|
return getState(sourceMask, scanCode, & InputMapper::getScanCodeState);
|
|
}
|
|
|
|
int32_t InputDevice::getSwitchState(uint32_t sourceMask, int32_t switchCode) {
|
|
return getState(sourceMask, switchCode, & InputMapper::getSwitchState);
|
|
}
|
|
|
|
int32_t InputDevice::getState(uint32_t sourceMask, int32_t code, GetStateFunc getStateFunc) {
|
|
int32_t result = AKEY_STATE_UNKNOWN;
|
|
size_t numMappers = mMappers.size();
|
|
for (size_t i = 0; i < numMappers; i++) {
|
|
InputMapper* mapper = mMappers[i];
|
|
if (sourcesMatchMask(mapper->getSources(), sourceMask)) {
|
|
result = (mapper->*getStateFunc)(sourceMask, code);
|
|
if (result >= AKEY_STATE_DOWN) {
|
|
return result;
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool InputDevice::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
|
|
const int32_t* keyCodes, uint8_t* outFlags) {
|
|
bool result = false;
|
|
size_t numMappers = mMappers.size();
|
|
for (size_t i = 0; i < numMappers; i++) {
|
|
InputMapper* mapper = mMappers[i];
|
|
if (sourcesMatchMask(mapper->getSources(), sourceMask)) {
|
|
result |= mapper->markSupportedKeyCodes(sourceMask, numCodes, keyCodes, outFlags);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
int32_t InputDevice::getMetaState() {
|
|
int32_t result = 0;
|
|
size_t numMappers = mMappers.size();
|
|
for (size_t i = 0; i < numMappers; i++) {
|
|
InputMapper* mapper = mMappers[i];
|
|
result |= mapper->getMetaState();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
// --- InputMapper ---
|
|
|
|
InputMapper::InputMapper(InputDevice* device) :
|
|
mDevice(device), mContext(device->getContext()) {
|
|
}
|
|
|
|
InputMapper::~InputMapper() {
|
|
}
|
|
|
|
void InputMapper::populateDeviceInfo(InputDeviceInfo* info) {
|
|
info->addSource(getSources());
|
|
}
|
|
|
|
void InputMapper::configure() {
|
|
}
|
|
|
|
void InputMapper::reset() {
|
|
}
|
|
|
|
int32_t InputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) {
|
|
return AKEY_STATE_UNKNOWN;
|
|
}
|
|
|
|
int32_t InputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) {
|
|
return AKEY_STATE_UNKNOWN;
|
|
}
|
|
|
|
int32_t InputMapper::getSwitchState(uint32_t sourceMask, int32_t switchCode) {
|
|
return AKEY_STATE_UNKNOWN;
|
|
}
|
|
|
|
bool InputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
|
|
const int32_t* keyCodes, uint8_t* outFlags) {
|
|
return false;
|
|
}
|
|
|
|
int32_t InputMapper::getMetaState() {
|
|
return 0;
|
|
}
|
|
|
|
bool InputMapper::applyStandardPolicyActions(nsecs_t when, int32_t policyActions) {
|
|
if (policyActions & InputReaderPolicyInterface::ACTION_APP_SWITCH_COMING) {
|
|
getDispatcher()->notifyAppSwitchComing(when);
|
|
}
|
|
|
|
return policyActions & InputReaderPolicyInterface::ACTION_DISPATCH;
|
|
}
|
|
|
|
|
|
// --- SwitchInputMapper ---
|
|
|
|
SwitchInputMapper::SwitchInputMapper(InputDevice* device) :
|
|
InputMapper(device) {
|
|
}
|
|
|
|
SwitchInputMapper::~SwitchInputMapper() {
|
|
}
|
|
|
|
uint32_t SwitchInputMapper::getSources() {
|
|
return 0;
|
|
}
|
|
|
|
void SwitchInputMapper::process(const RawEvent* rawEvent) {
|
|
switch (rawEvent->type) {
|
|
case EV_SW:
|
|
processSwitch(rawEvent->when, rawEvent->scanCode, rawEvent->value);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void SwitchInputMapper::processSwitch(nsecs_t when, int32_t switchCode, int32_t switchValue) {
|
|
uint32_t policyFlags = 0;
|
|
int32_t policyActions = getPolicy()->interceptSwitch(
|
|
when, switchCode, switchValue, policyFlags);
|
|
|
|
applyStandardPolicyActions(when, policyActions);
|
|
}
|
|
|
|
int32_t SwitchInputMapper::getSwitchState(uint32_t sourceMask, int32_t switchCode) {
|
|
return getEventHub()->getSwitchState(getDeviceId(), switchCode);
|
|
}
|
|
|
|
|
|
// --- KeyboardInputMapper ---
|
|
|
|
KeyboardInputMapper::KeyboardInputMapper(InputDevice* device, int32_t associatedDisplayId,
|
|
uint32_t sources, int32_t keyboardType) :
|
|
InputMapper(device), mAssociatedDisplayId(associatedDisplayId), mSources(sources),
|
|
mKeyboardType(keyboardType) {
|
|
initialize();
|
|
}
|
|
|
|
KeyboardInputMapper::~KeyboardInputMapper() {
|
|
}
|
|
|
|
void KeyboardInputMapper::initialize() {
|
|
mMetaState = AMETA_NONE;
|
|
mDownTime = 0;
|
|
}
|
|
|
|
uint32_t KeyboardInputMapper::getSources() {
|
|
return mSources;
|
|
}
|
|
|
|
void KeyboardInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
|
|
InputMapper::populateDeviceInfo(info);
|
|
|
|
info->setKeyboardType(mKeyboardType);
|
|
}
|
|
|
|
void KeyboardInputMapper::reset() {
|
|
// Synthesize key up event on reset if keys are currently down.
|
|
while (! mKeyDowns.isEmpty()) {
|
|
const KeyDown& keyDown = mKeyDowns.top();
|
|
nsecs_t when = systemTime(SYSTEM_TIME_MONOTONIC);
|
|
processKey(when, false, keyDown.keyCode, keyDown.scanCode, 0);
|
|
}
|
|
|
|
InputMapper::reset();
|
|
|
|
// Reinitialize.
|
|
initialize();
|
|
getContext()->updateGlobalMetaState();
|
|
}
|
|
|
|
void KeyboardInputMapper::process(const RawEvent* rawEvent) {
|
|
switch (rawEvent->type) {
|
|
case EV_KEY: {
|
|
int32_t scanCode = rawEvent->scanCode;
|
|
if (isKeyboardOrGamepadKey(scanCode)) {
|
|
processKey(rawEvent->when, rawEvent->value != 0, rawEvent->keyCode, scanCode,
|
|
rawEvent->flags);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool KeyboardInputMapper::isKeyboardOrGamepadKey(int32_t scanCode) {
|
|
return scanCode < BTN_MOUSE
|
|
|| scanCode >= KEY_OK
|
|
|| (scanCode >= BTN_GAMEPAD && scanCode < BTN_DIGI);
|
|
}
|
|
|
|
void KeyboardInputMapper::processKey(nsecs_t when, bool down, int32_t keyCode, int32_t scanCode,
|
|
uint32_t policyFlags) {
|
|
if (down) {
|
|
// Rotate key codes according to orientation.
|
|
if (mAssociatedDisplayId >= 0) {
|
|
int32_t orientation;
|
|
if (! getPolicy()->getDisplayInfo(mAssociatedDisplayId, NULL, NULL, & orientation)) {
|
|
return;
|
|
}
|
|
|
|
keyCode = rotateKeyCode(keyCode, orientation);
|
|
}
|
|
|
|
// Add key down.
|
|
ssize_t keyDownIndex = findKeyDown(scanCode);
|
|
if (keyDownIndex >= 0) {
|
|
// key repeat, be sure to use same keycode as before in case of rotation
|
|
keyCode = mKeyDowns.top().keyCode;
|
|
} else {
|
|
// key down
|
|
mKeyDowns.push();
|
|
KeyDown& keyDown = mKeyDowns.editTop();
|
|
keyDown.keyCode = keyCode;
|
|
keyDown.scanCode = scanCode;
|
|
}
|
|
} else {
|
|
// Remove key down.
|
|
ssize_t keyDownIndex = findKeyDown(scanCode);
|
|
if (keyDownIndex >= 0) {
|
|
// key up, be sure to use same keycode as before in case of rotation
|
|
keyCode = mKeyDowns.top().keyCode;
|
|
mKeyDowns.removeAt(size_t(keyDownIndex));
|
|
} else {
|
|
// key was not actually down
|
|
LOGI("Dropping key up from device %s because the key was not down. "
|
|
"keyCode=%d, scanCode=%d",
|
|
getDeviceName().string(), keyCode, scanCode);
|
|
return;
|
|
}
|
|
}
|
|
|
|
int32_t oldMetaState = mMetaState;
|
|
int32_t newMetaState = updateMetaState(keyCode, down, oldMetaState);
|
|
if (oldMetaState != newMetaState) {
|
|
mMetaState = newMetaState;
|
|
getContext()->updateGlobalMetaState();
|
|
}
|
|
|
|
/* Apply policy. */
|
|
|
|
int32_t policyActions = getPolicy()->interceptKey(when,
|
|
getDeviceId(), down, keyCode, scanCode, policyFlags);
|
|
|
|
if (! applyStandardPolicyActions(when, policyActions)) {
|
|
return; // event dropped
|
|
}
|
|
|
|
/* Enqueue key event for dispatch. */
|
|
|
|
int32_t keyEventAction;
|
|
if (down) {
|
|
mDownTime = when;
|
|
keyEventAction = AKEY_EVENT_ACTION_DOWN;
|
|
} else {
|
|
keyEventAction = AKEY_EVENT_ACTION_UP;
|
|
}
|
|
|
|
int32_t keyEventFlags = AKEY_EVENT_FLAG_FROM_SYSTEM;
|
|
if (policyFlags & POLICY_FLAG_WOKE_HERE) {
|
|
keyEventFlags = keyEventFlags | AKEY_EVENT_FLAG_WOKE_HERE;
|
|
}
|
|
|
|
getDispatcher()->notifyKey(when, getDeviceId(), AINPUT_SOURCE_KEYBOARD, policyFlags,
|
|
keyEventAction, keyEventFlags, keyCode, scanCode,
|
|
mMetaState, mDownTime);
|
|
}
|
|
|
|
ssize_t KeyboardInputMapper::findKeyDown(int32_t scanCode) {
|
|
size_t n = mKeyDowns.size();
|
|
for (size_t i = 0; i < n; i++) {
|
|
if (mKeyDowns[i].scanCode == scanCode) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int32_t KeyboardInputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) {
|
|
return getEventHub()->getKeyCodeState(getDeviceId(), keyCode);
|
|
}
|
|
|
|
int32_t KeyboardInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) {
|
|
return getEventHub()->getScanCodeState(getDeviceId(), scanCode);
|
|
}
|
|
|
|
bool KeyboardInputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
|
|
const int32_t* keyCodes, uint8_t* outFlags) {
|
|
return getEventHub()->markSupportedKeyCodes(getDeviceId(), numCodes, keyCodes, outFlags);
|
|
}
|
|
|
|
int32_t KeyboardInputMapper::getMetaState() {
|
|
return mMetaState;
|
|
}
|
|
|
|
|
|
// --- TrackballInputMapper ---
|
|
|
|
TrackballInputMapper::TrackballInputMapper(InputDevice* device, int32_t associatedDisplayId) :
|
|
InputMapper(device), mAssociatedDisplayId(associatedDisplayId) {
|
|
mXPrecision = TRACKBALL_MOVEMENT_THRESHOLD;
|
|
mYPrecision = TRACKBALL_MOVEMENT_THRESHOLD;
|
|
mXScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD;
|
|
mYScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD;
|
|
|
|
initialize();
|
|
}
|
|
|
|
TrackballInputMapper::~TrackballInputMapper() {
|
|
}
|
|
|
|
uint32_t TrackballInputMapper::getSources() {
|
|
return AINPUT_SOURCE_TRACKBALL;
|
|
}
|
|
|
|
void TrackballInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
|
|
InputMapper::populateDeviceInfo(info);
|
|
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_X, -1.0f, 1.0f, 0.0f, mXScale);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_Y, -1.0f, 1.0f, 0.0f, mYScale);
|
|
}
|
|
|
|
void TrackballInputMapper::initialize() {
|
|
mAccumulator.clear();
|
|
|
|
mDown = false;
|
|
mDownTime = 0;
|
|
}
|
|
|
|
void TrackballInputMapper::reset() {
|
|
// Synthesize trackball button up event on reset if trackball button is currently down.
|
|
if (mDown) {
|
|
nsecs_t when = systemTime(SYSTEM_TIME_MONOTONIC);
|
|
mAccumulator.fields |= Accumulator::FIELD_BTN_MOUSE;
|
|
mAccumulator.btnMouse = false;
|
|
sync(when);
|
|
}
|
|
|
|
InputMapper::reset();
|
|
|
|
// Reinitialize.
|
|
initialize();
|
|
}
|
|
|
|
void TrackballInputMapper::process(const RawEvent* rawEvent) {
|
|
switch (rawEvent->type) {
|
|
case EV_KEY:
|
|
switch (rawEvent->scanCode) {
|
|
case BTN_MOUSE:
|
|
mAccumulator.fields |= Accumulator::FIELD_BTN_MOUSE;
|
|
mAccumulator.btnMouse = rawEvent->value != 0;
|
|
|
|
sync(rawEvent->when);
|
|
mAccumulator.clear();
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case EV_REL:
|
|
switch (rawEvent->scanCode) {
|
|
case REL_X:
|
|
mAccumulator.fields |= Accumulator::FIELD_REL_X;
|
|
mAccumulator.relX = rawEvent->value;
|
|
break;
|
|
case REL_Y:
|
|
mAccumulator.fields |= Accumulator::FIELD_REL_Y;
|
|
mAccumulator.relY = rawEvent->value;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case EV_SYN:
|
|
switch (rawEvent->scanCode) {
|
|
case SYN_REPORT:
|
|
if (mAccumulator.isDirty()) {
|
|
sync(rawEvent->when);
|
|
mAccumulator.clear();
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void TrackballInputMapper::sync(nsecs_t when) {
|
|
/* Get display properties so for rotation based on display orientation. */
|
|
|
|
int32_t orientation;
|
|
if (mAssociatedDisplayId >= 0) {
|
|
if (! getPolicy()->getDisplayInfo(mAssociatedDisplayId, NULL, NULL, & orientation)) {
|
|
return;
|
|
}
|
|
} else {
|
|
orientation = InputReaderPolicyInterface::ROTATION_0;
|
|
}
|
|
|
|
/* Update saved trackball state */
|
|
|
|
uint32_t fields = mAccumulator.fields;
|
|
bool downChanged = fields & Accumulator::FIELD_BTN_MOUSE;
|
|
|
|
if (downChanged) {
|
|
if (mAccumulator.btnMouse) {
|
|
mDown = true;
|
|
mDownTime = when;
|
|
} else {
|
|
mDown = false;
|
|
}
|
|
}
|
|
|
|
/* Apply policy */
|
|
|
|
uint32_t policyFlags = 0;
|
|
int32_t policyActions = getPolicy()->interceptGeneric(when, policyFlags);
|
|
|
|
if (! applyStandardPolicyActions(when, policyActions)) {
|
|
return; // event dropped
|
|
}
|
|
|
|
/* Enqueue motion event for dispatch. */
|
|
|
|
int32_t motionEventAction;
|
|
if (downChanged) {
|
|
motionEventAction = mDown ? AMOTION_EVENT_ACTION_DOWN : AMOTION_EVENT_ACTION_UP;
|
|
} else {
|
|
motionEventAction = AMOTION_EVENT_ACTION_MOVE;
|
|
}
|
|
|
|
int32_t pointerId = 0;
|
|
PointerCoords pointerCoords;
|
|
pointerCoords.x = fields & Accumulator::FIELD_REL_X
|
|
? mAccumulator.relX * mXScale : 0;
|
|
pointerCoords.y = fields & Accumulator::FIELD_REL_Y
|
|
? mAccumulator.relY * mYScale : 0;
|
|
pointerCoords.pressure = 1.0f; // XXX Consider making this 1.0f if down, 0 otherwise.
|
|
pointerCoords.size = 0;
|
|
pointerCoords.touchMajor = 0;
|
|
pointerCoords.touchMinor = 0;
|
|
pointerCoords.toolMajor = 0;
|
|
pointerCoords.toolMinor = 0;
|
|
pointerCoords.orientation = 0;
|
|
|
|
float temp;
|
|
switch (orientation) {
|
|
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;
|
|
}
|
|
|
|
int32_t metaState = mContext->getGlobalMetaState();
|
|
getDispatcher()->notifyMotion(when, getDeviceId(), AINPUT_SOURCE_TRACKBALL, policyFlags,
|
|
motionEventAction, metaState, AMOTION_EVENT_EDGE_FLAG_NONE,
|
|
1, & pointerId, & pointerCoords, mXPrecision, mYPrecision, mDownTime);
|
|
}
|
|
|
|
|
|
// --- TouchInputMapper ---
|
|
|
|
TouchInputMapper::TouchInputMapper(InputDevice* device, int32_t associatedDisplayId) :
|
|
InputMapper(device), mAssociatedDisplayId(associatedDisplayId),
|
|
mSurfaceOrientation(-1), mSurfaceWidth(-1), mSurfaceHeight(-1) {
|
|
initialize();
|
|
}
|
|
|
|
TouchInputMapper::~TouchInputMapper() {
|
|
}
|
|
|
|
uint32_t TouchInputMapper::getSources() {
|
|
return mAssociatedDisplayId >= 0 ? AINPUT_SOURCE_TOUCHSCREEN : AINPUT_SOURCE_TOUCHPAD;
|
|
}
|
|
|
|
void TouchInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
|
|
InputMapper::populateDeviceInfo(info);
|
|
|
|
// FIXME: Should ensure the surface information is up to date so that orientation changes
|
|
// are noticed immediately. Unfortunately we will need to add some extra locks here
|
|
// to prevent race conditions.
|
|
// configureSurface();
|
|
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_X, mOrientedRanges.x);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_Y, mOrientedRanges.y);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_PRESSURE, mOrientedRanges.pressure);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_SIZE, mOrientedRanges.size);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_TOUCH_MAJOR, mOrientedRanges.touchMajor);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_TOUCH_MINOR, mOrientedRanges.touchMinor);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_TOOL_MAJOR, mOrientedRanges.toolMajor);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_TOOL_MINOR, mOrientedRanges.toolMinor);
|
|
info->addMotionRange(AINPUT_MOTION_RANGE_ORIENTATION, mOrientedRanges.orientation);
|
|
}
|
|
|
|
void TouchInputMapper::initialize() {
|
|
mLastTouch.clear();
|
|
mDownTime = 0;
|
|
mCurrentVirtualKey.down = false;
|
|
|
|
for (uint32_t i = 0; i < MAX_POINTERS; i++) {
|
|
mAveragingTouchFilter.historyStart[i] = 0;
|
|
mAveragingTouchFilter.historyEnd[i] = 0;
|
|
}
|
|
|
|
mJumpyTouchFilter.jumpyPointsDropped = 0;
|
|
}
|
|
|
|
void TouchInputMapper::configure() {
|
|
InputMapper::configure();
|
|
|
|
// Configure basic parameters.
|
|
mParameters.useBadTouchFilter = getPolicy()->filterTouchEvents();
|
|
mParameters.useAveragingTouchFilter = getPolicy()->filterTouchEvents();
|
|
mParameters.useJumpyTouchFilter = getPolicy()->filterJumpyTouchEvents();
|
|
|
|
// Configure absolute axis information.
|
|
configureAxes();
|
|
|
|
// Configure pressure factors.
|
|
if (mAxes.pressure.valid) {
|
|
mPressureOrigin = mAxes.pressure.minValue;
|
|
mPressureScale = 1.0f / mAxes.pressure.getRange();
|
|
} else {
|
|
mPressureOrigin = 0;
|
|
mPressureScale = 1.0f;
|
|
}
|
|
|
|
mOrientedRanges.pressure.min = 0.0f;
|
|
mOrientedRanges.pressure.max = 1.0f;
|
|
mOrientedRanges.pressure.flat = 0.0f;
|
|
mOrientedRanges.pressure.fuzz = mPressureScale;
|
|
|
|
// Configure size factors.
|
|
if (mAxes.size.valid) {
|
|
mSizeOrigin = mAxes.size.minValue;
|
|
mSizeScale = 1.0f / mAxes.size.getRange();
|
|
} else {
|
|
mSizeOrigin = 0;
|
|
mSizeScale = 1.0f;
|
|
}
|
|
|
|
mOrientedRanges.size.min = 0.0f;
|
|
mOrientedRanges.size.max = 1.0f;
|
|
mOrientedRanges.size.flat = 0.0f;
|
|
mOrientedRanges.size.fuzz = mSizeScale;
|
|
|
|
// Configure orientation factors.
|
|
if (mAxes.orientation.valid && mAxes.orientation.maxValue > 0) {
|
|
mOrientationScale = float(M_PI_2) / mAxes.orientation.maxValue;
|
|
} else {
|
|
mOrientationScale = 0.0f;
|
|
}
|
|
|
|
mOrientedRanges.orientation.min = - M_PI_2;
|
|
mOrientedRanges.orientation.max = M_PI_2;
|
|
mOrientedRanges.orientation.flat = 0;
|
|
mOrientedRanges.orientation.fuzz = mOrientationScale;
|
|
|
|
// Configure surface dimensions and orientation.
|
|
configureSurface();
|
|
}
|
|
|
|
void TouchInputMapper::configureAxes() {
|
|
mAxes.x.valid = false;
|
|
mAxes.y.valid = false;
|
|
mAxes.pressure.valid = false;
|
|
mAxes.size.valid = false;
|
|
mAxes.touchMajor.valid = false;
|
|
mAxes.touchMinor.valid = false;
|
|
mAxes.toolMajor.valid = false;
|
|
mAxes.toolMinor.valid = false;
|
|
mAxes.orientation.valid = false;
|
|
}
|
|
|
|
bool TouchInputMapper::configureSurface() {
|
|
// Update orientation and dimensions if needed.
|
|
int32_t orientation;
|
|
int32_t width, height;
|
|
if (mAssociatedDisplayId >= 0) {
|
|
if (! getPolicy()->getDisplayInfo(mAssociatedDisplayId, & width, & height, & orientation)) {
|
|
return false;
|
|
}
|
|
} else {
|
|
orientation = InputReaderPolicyInterface::ROTATION_0;
|
|
width = mAxes.x.getRange();
|
|
height = mAxes.y.getRange();
|
|
}
|
|
|
|
bool orientationChanged = mSurfaceOrientation != orientation;
|
|
if (orientationChanged) {
|
|
mSurfaceOrientation = orientation;
|
|
}
|
|
|
|
bool sizeChanged = mSurfaceWidth != width || mSurfaceHeight != height;
|
|
if (sizeChanged) {
|
|
mSurfaceWidth = width;
|
|
mSurfaceHeight = height;
|
|
|
|
// Compute size-dependent translation and scaling factors and place virtual keys.
|
|
if (mAxes.x.valid && mAxes.y.valid) {
|
|
mXOrigin = mAxes.x.minValue;
|
|
mYOrigin = mAxes.y.minValue;
|
|
|
|
LOGI("Device configured: id=0x%x, name=%s (display size was changed)",
|
|
getDeviceId(), getDeviceName().string());
|
|
|
|
mXScale = float(width) / mAxes.x.getRange();
|
|
mYScale = float(height) / mAxes.y.getRange();
|
|
mXPrecision = 1.0f / mXScale;
|
|
mYPrecision = 1.0f / mYScale;
|
|
|
|
configureVirtualKeys();
|
|
} else {
|
|
mXOrigin = 0;
|
|
mYOrigin = 0;
|
|
mXScale = 1.0f;
|
|
mYScale = 1.0f;
|
|
mXPrecision = 1.0f;
|
|
mYPrecision = 1.0f;
|
|
}
|
|
|
|
// Configure touch and tool area ranges.
|
|
float diagonal = sqrt(float(width * width + height * height));
|
|
float diagonalFuzz = sqrt(mXScale * mXScale + mYScale * mYScale);
|
|
|
|
mOrientedRanges.touchMajor.min = 0.0f;
|
|
mOrientedRanges.touchMajor.max = diagonal;
|
|
mOrientedRanges.touchMajor.flat = 0.0f;
|
|
mOrientedRanges.touchMajor.fuzz = diagonalFuzz;
|
|
mOrientedRanges.touchMinor = mOrientedRanges.touchMajor;
|
|
|
|
mOrientedRanges.toolMinor = mOrientedRanges.toolMajor = mOrientedRanges.touchMajor;
|
|
}
|
|
|
|
if (orientationChanged || sizeChanged) {
|
|
// Compute oriented surface dimensions, precision, and scales.
|
|
float orientedXScale, orientedYScale;
|
|
switch (mSurfaceOrientation) {
|
|
case InputReaderPolicyInterface::ROTATION_90:
|
|
case InputReaderPolicyInterface::ROTATION_270:
|
|
mOrientedSurfaceWidth = mSurfaceHeight;
|
|
mOrientedSurfaceHeight = mSurfaceWidth;
|
|
mOrientedXPrecision = mYPrecision;
|
|
mOrientedYPrecision = mXPrecision;
|
|
orientedXScale = mYScale;
|
|
orientedYScale = mXScale;
|
|
break;
|
|
default:
|
|
mOrientedSurfaceWidth = mSurfaceWidth;
|
|
mOrientedSurfaceHeight = mSurfaceHeight;
|
|
mOrientedXPrecision = mXPrecision;
|
|
mOrientedYPrecision = mYPrecision;
|
|
orientedXScale = mXScale;
|
|
orientedYScale = mYScale;
|
|
break;
|
|
}
|
|
|
|
// Configure position ranges.
|
|
mOrientedRanges.x.min = 0;
|
|
mOrientedRanges.x.max = mOrientedSurfaceWidth;
|
|
mOrientedRanges.x.flat = 0;
|
|
mOrientedRanges.x.fuzz = orientedXScale;
|
|
|
|
mOrientedRanges.y.min = 0;
|
|
mOrientedRanges.y.max = mOrientedSurfaceHeight;
|
|
mOrientedRanges.y.flat = 0;
|
|
mOrientedRanges.y.fuzz = orientedYScale;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void TouchInputMapper::configureVirtualKeys() {
|
|
assert(mAxes.x.valid && mAxes.y.valid);
|
|
|
|
Vector<InputReaderPolicyInterface::VirtualKeyDefinition> virtualKeyDefinitions;
|
|
getPolicy()->getVirtualKeyDefinitions(getDeviceName(), virtualKeyDefinitions);
|
|
|
|
{ // acquire virtual key lock
|
|
AutoMutex _l(mVirtualKeyLock);
|
|
|
|
mVirtualKeys.clear();
|
|
|
|
if (virtualKeyDefinitions.size() == 0) {
|
|
return;
|
|
}
|
|
|
|
mVirtualKeys.setCapacity(virtualKeyDefinitions.size());
|
|
|
|
int32_t touchScreenLeft = mAxes.x.minValue;
|
|
int32_t touchScreenTop = mAxes.y.minValue;
|
|
int32_t touchScreenWidth = mAxes.x.getRange();
|
|
int32_t touchScreenHeight = mAxes.y.getRange();
|
|
|
|
for (size_t i = 0; i < virtualKeyDefinitions.size(); i++) {
|
|
const InputReaderPolicyInterface::VirtualKeyDefinition& virtualKeyDefinition =
|
|
virtualKeyDefinitions[i];
|
|
|
|
mVirtualKeys.add();
|
|
VirtualKey& virtualKey = mVirtualKeys.editTop();
|
|
|
|
virtualKey.scanCode = virtualKeyDefinition.scanCode;
|
|
int32_t keyCode;
|
|
uint32_t flags;
|
|
if (getEventHub()->scancodeToKeycode(getDeviceId(), virtualKey.scanCode,
|
|
& keyCode, & flags)) {
|
|
LOGW(" VirtualKey %d: could not obtain key code, ignoring", virtualKey.scanCode);
|
|
mVirtualKeys.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 / mSurfaceWidth + touchScreenLeft;
|
|
virtualKey.hitRight= (virtualKeyDefinition.centerX + halfWidth)
|
|
* touchScreenWidth / mSurfaceWidth + touchScreenLeft;
|
|
virtualKey.hitTop = (virtualKeyDefinition.centerY - halfHeight)
|
|
* touchScreenHeight / mSurfaceHeight + touchScreenTop;
|
|
virtualKey.hitBottom = (virtualKeyDefinition.centerY + halfHeight)
|
|
* touchScreenHeight / mSurfaceHeight + 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);
|
|
}
|
|
} // release virtual key lock
|
|
}
|
|
|
|
void TouchInputMapper::reset() {
|
|
// Synthesize touch up event if touch is currently down.
|
|
// This will also take care of finishing virtual key processing if needed.
|
|
if (mLastTouch.pointerCount != 0) {
|
|
nsecs_t when = systemTime(SYSTEM_TIME_MONOTONIC);
|
|
mCurrentTouch.clear();
|
|
syncTouch(when, true);
|
|
}
|
|
|
|
InputMapper::reset();
|
|
|
|
// Reinitialize.
|
|
initialize();
|
|
}
|
|
|
|
void TouchInputMapper::syncTouch(nsecs_t when, bool havePointerIds) {
|
|
/* Refresh associated display information and update our size configuration if needed. */
|
|
|
|
if (! configureSurface()) {
|
|
return;
|
|
}
|
|
|
|
/* Apply policy */
|
|
|
|
uint32_t policyFlags = 0;
|
|
int32_t policyActions = getPolicy()->interceptGeneric(when, policyFlags);
|
|
|
|
if (! applyStandardPolicyActions(when, policyActions)) {
|
|
mLastTouch.clear();
|
|
return; // event dropped
|
|
}
|
|
|
|
/* Preprocess pointer data */
|
|
|
|
if (mParameters.useBadTouchFilter) {
|
|
if (applyBadTouchFilter()) {
|
|
havePointerIds = false;
|
|
}
|
|
}
|
|
|
|
if (mParameters.useJumpyTouchFilter) {
|
|
if (applyJumpyTouchFilter()) {
|
|
havePointerIds = false;
|
|
}
|
|
}
|
|
|
|
if (! havePointerIds) {
|
|
calculatePointerIds();
|
|
}
|
|
|
|
TouchData temp;
|
|
TouchData* savedTouch;
|
|
if (mParameters.useAveragingTouchFilter) {
|
|
temp.copyFrom(mCurrentTouch);
|
|
savedTouch = & temp;
|
|
|
|
applyAveragingTouchFilter();
|
|
} else {
|
|
savedTouch = & mCurrentTouch;
|
|
}
|
|
|
|
/* Process touches and virtual keys */
|
|
|
|
TouchResult touchResult = consumeOffScreenTouches(when, policyFlags);
|
|
if (touchResult == DISPATCH_TOUCH) {
|
|
dispatchTouches(when, policyFlags);
|
|
}
|
|
|
|
/* Copy current touch to last touch in preparation for the next cycle. */
|
|
|
|
if (touchResult == DROP_STROKE) {
|
|
mLastTouch.clear();
|
|
} else {
|
|
mLastTouch.copyFrom(*savedTouch);
|
|
}
|
|
}
|
|
|
|
TouchInputMapper::TouchResult TouchInputMapper::consumeOffScreenTouches(
|
|
nsecs_t when, uint32_t policyFlags) {
|
|
int32_t keyEventAction, keyEventFlags;
|
|
int32_t keyCode, scanCode, downTime;
|
|
TouchResult touchResult;
|
|
|
|
{ // acquire virtual key lock
|
|
AutoMutex _l(mVirtualKeyLock);
|
|
|
|
if (mCurrentVirtualKey.down) {
|
|
if (mCurrentTouch.pointerCount == 0) {
|
|
// Pointer went up while virtual key was down.
|
|
mCurrentVirtualKey.down = false;
|
|
#if DEBUG_VIRTUAL_KEYS
|
|
LOGD("VirtualKeys: Generating key up: keyCode=%d, scanCode=%d",
|
|
mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode);
|
|
#endif
|
|
keyEventAction = AKEY_EVENT_ACTION_UP;
|
|
keyEventFlags = AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY;
|
|
touchResult = SKIP_TOUCH;
|
|
goto DispatchVirtualKey;
|
|
}
|
|
|
|
if (mCurrentTouch.pointerCount == 1) {
|
|
int32_t x = mCurrentTouch.pointers[0].x;
|
|
int32_t y = mCurrentTouch.pointers[0].y;
|
|
const VirtualKey* virtualKey = findVirtualKeyHitLvk(x, y);
|
|
if (virtualKey && virtualKey->keyCode == mCurrentVirtualKey.keyCode) {
|
|
// Pointer is still within the space of the virtual key.
|
|
return SKIP_TOUCH;
|
|
}
|
|
}
|
|
|
|
// Pointer left virtual key area or another pointer also went down.
|
|
// Send key cancellation and drop the stroke so subsequent motions will be
|
|
// considered fresh downs. This is useful when the user swipes away from the
|
|
// virtual key area into the main display surface.
|
|
mCurrentVirtualKey.down = false;
|
|
#if DEBUG_VIRTUAL_KEYS
|
|
LOGD("VirtualKeys: Canceling key: keyCode=%d, scanCode=%d",
|
|
mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode);
|
|
#endif
|
|
keyEventAction = AKEY_EVENT_ACTION_UP;
|
|
keyEventFlags = AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY
|
|
| AKEY_EVENT_FLAG_CANCELED;
|
|
touchResult = DROP_STROKE;
|
|
goto DispatchVirtualKey;
|
|
} else {
|
|
if (mCurrentTouch.pointerCount >= 1 && mLastTouch.pointerCount == 0) {
|
|
// Pointer just went down. Handle off-screen touches, if needed.
|
|
int32_t x = mCurrentTouch.pointers[0].x;
|
|
int32_t y = mCurrentTouch.pointers[0].y;
|
|
if (! isPointInsideSurface(x, y)) {
|
|
// If exactly one pointer went down, check for virtual key hit.
|
|
// Otherwise we will drop the entire stroke.
|
|
if (mCurrentTouch.pointerCount == 1) {
|
|
const VirtualKey* virtualKey = findVirtualKeyHitLvk(x, y);
|
|
if (virtualKey) {
|
|
mCurrentVirtualKey.down = true;
|
|
mCurrentVirtualKey.downTime = when;
|
|
mCurrentVirtualKey.keyCode = virtualKey->keyCode;
|
|
mCurrentVirtualKey.scanCode = virtualKey->scanCode;
|
|
#if DEBUG_VIRTUAL_KEYS
|
|
LOGD("VirtualKeys: Generating key down: keyCode=%d, scanCode=%d",
|
|
mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode);
|
|
#endif
|
|
keyEventAction = AKEY_EVENT_ACTION_DOWN;
|
|
keyEventFlags = AKEY_EVENT_FLAG_FROM_SYSTEM
|
|
| AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY;
|
|
touchResult = SKIP_TOUCH;
|
|
goto DispatchVirtualKey;
|
|
}
|
|
}
|
|
return DROP_STROKE;
|
|
}
|
|
}
|
|
return DISPATCH_TOUCH;
|
|
}
|
|
|
|
DispatchVirtualKey:
|
|
// Collect remaining state needed to dispatch virtual key.
|
|
keyCode = mCurrentVirtualKey.keyCode;
|
|
scanCode = mCurrentVirtualKey.scanCode;
|
|
downTime = mCurrentVirtualKey.downTime;
|
|
} // release virtual key lock
|
|
|
|
// Dispatch virtual key.
|
|
int32_t metaState = mContext->getGlobalMetaState();
|
|
|
|
if (keyEventAction == AKEY_EVENT_ACTION_DOWN) {
|
|
getPolicy()->virtualKeyDownFeedback();
|
|
}
|
|
|
|
int32_t policyActions = getPolicy()->interceptKey(when, getDeviceId(),
|
|
keyEventAction == AKEY_EVENT_ACTION_DOWN, keyCode, scanCode, policyFlags);
|
|
|
|
if (applyStandardPolicyActions(when, policyActions)) {
|
|
getDispatcher()->notifyKey(when, getDeviceId(), AINPUT_SOURCE_KEYBOARD, policyFlags,
|
|
keyEventAction, keyEventFlags, keyCode, scanCode, metaState, downTime);
|
|
}
|
|
return touchResult;
|
|
}
|
|
|
|
void TouchInputMapper::dispatchTouches(nsecs_t when, uint32_t policyFlags) {
|
|
uint32_t currentPointerCount = mCurrentTouch.pointerCount;
|
|
uint32_t lastPointerCount = mLastTouch.pointerCount;
|
|
if (currentPointerCount == 0 && lastPointerCount == 0) {
|
|
return; // nothing to do!
|
|
}
|
|
|
|
BitSet32 currentIdBits = mCurrentTouch.idBits;
|
|
BitSet32 lastIdBits = mLastTouch.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 = AMOTION_EVENT_ACTION_MOVE;
|
|
dispatchTouch(when, policyFlags, & mCurrentTouch,
|
|
currentIdBits, -1, 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 = AMOTION_EVENT_ACTION_UP;
|
|
} else {
|
|
motionEventAction = AMOTION_EVENT_ACTION_POINTER_UP;
|
|
}
|
|
|
|
dispatchTouch(when, policyFlags, & mLastTouch,
|
|
oldActiveIdBits, upId, 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 = AMOTION_EVENT_ACTION_DOWN;
|
|
mDownTime = when;
|
|
} else {
|
|
motionEventAction = AMOTION_EVENT_ACTION_POINTER_DOWN;
|
|
}
|
|
|
|
dispatchTouch(when, policyFlags, & mCurrentTouch,
|
|
activeIdBits, downId, motionEventAction);
|
|
}
|
|
}
|
|
}
|
|
|
|
void TouchInputMapper::dispatchTouch(nsecs_t when, uint32_t policyFlags,
|
|
TouchData* touch, BitSet32 idBits, uint32_t changedId,
|
|
int32_t motionEventAction) {
|
|
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 - mXOrigin) * mXScale;
|
|
float y = float(touch->pointers[index].y - mYOrigin) * mYScale;
|
|
float pressure = float(touch->pointers[index].pressure - mPressureOrigin) * mPressureScale;
|
|
float size = float(touch->pointers[index].size - mSizeOrigin) * mSizeScale;
|
|
|
|
float orientation = float(touch->pointers[index].orientation) * mOrientationScale;
|
|
|
|
float touchMajor, touchMinor, toolMajor, toolMinor;
|
|
if (abs(orientation) <= M_PI_4) {
|
|
// Nominally vertical orientation: scale major axis by Y, and scale minor axis by X.
|
|
touchMajor = float(touch->pointers[index].touchMajor) * mYScale;
|
|
touchMinor = float(touch->pointers[index].touchMinor) * mXScale;
|
|
toolMajor = float(touch->pointers[index].toolMajor) * mYScale;
|
|
toolMinor = float(touch->pointers[index].toolMinor) * mXScale;
|
|
} else {
|
|
// Nominally horizontal orientation: scale major axis by X, and scale minor axis by Y.
|
|
touchMajor = float(touch->pointers[index].touchMajor) * mXScale;
|
|
touchMinor = float(touch->pointers[index].touchMinor) * mYScale;
|
|
toolMajor = float(touch->pointers[index].toolMajor) * mXScale;
|
|
toolMinor = float(touch->pointers[index].toolMinor) * mYScale;
|
|
}
|
|
|
|
switch (mSurfaceOrientation) {
|
|
case InputReaderPolicyInterface::ROTATION_90: {
|
|
float xTemp = x;
|
|
x = y;
|
|
y = mSurfaceWidth - xTemp;
|
|
orientation -= M_PI_2;
|
|
if (orientation < - M_PI_2) {
|
|
orientation += M_PI;
|
|
}
|
|
break;
|
|
}
|
|
case InputReaderPolicyInterface::ROTATION_180: {
|
|
x = mSurfaceWidth - x;
|
|
y = mSurfaceHeight - y;
|
|
orientation = - orientation;
|
|
break;
|
|
}
|
|
case InputReaderPolicyInterface::ROTATION_270: {
|
|
float xTemp = x;
|
|
x = mSurfaceHeight - y;
|
|
y = xTemp;
|
|
orientation += M_PI_2;
|
|
if (orientation > M_PI_2) {
|
|
orientation -= M_PI;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
pointerIds[pointerCount] = int32_t(id);
|
|
|
|
pointerCoords[pointerCount].x = x;
|
|
pointerCoords[pointerCount].y = y;
|
|
pointerCoords[pointerCount].pressure = pressure;
|
|
pointerCoords[pointerCount].size = size;
|
|
pointerCoords[pointerCount].touchMajor = touchMajor;
|
|
pointerCoords[pointerCount].touchMinor = touchMinor;
|
|
pointerCoords[pointerCount].toolMajor = toolMajor;
|
|
pointerCoords[pointerCount].toolMinor = toolMinor;
|
|
pointerCoords[pointerCount].orientation = orientation;
|
|
|
|
if (id == changedId) {
|
|
motionEventAction |= pointerCount << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
|
|
}
|
|
|
|
pointerCount += 1;
|
|
}
|
|
|
|
// Check edge flags by looking only at the first pointer since the flags are
|
|
// global to the event.
|
|
int32_t motionEventEdgeFlags = 0;
|
|
if (motionEventAction == AMOTION_EVENT_ACTION_DOWN) {
|
|
if (pointerCoords[0].x <= 0) {
|
|
motionEventEdgeFlags |= AMOTION_EVENT_EDGE_FLAG_LEFT;
|
|
} else if (pointerCoords[0].x >= mOrientedSurfaceWidth) {
|
|
motionEventEdgeFlags |= AMOTION_EVENT_EDGE_FLAG_RIGHT;
|
|
}
|
|
if (pointerCoords[0].y <= 0) {
|
|
motionEventEdgeFlags |= AMOTION_EVENT_EDGE_FLAG_TOP;
|
|
} else if (pointerCoords[0].y >= mOrientedSurfaceHeight) {
|
|
motionEventEdgeFlags |= AMOTION_EVENT_EDGE_FLAG_BOTTOM;
|
|
}
|
|
}
|
|
|
|
getDispatcher()->notifyMotion(when, getDeviceId(), AINPUT_SOURCE_TOUCHSCREEN, policyFlags,
|
|
motionEventAction, getContext()->getGlobalMetaState(), motionEventEdgeFlags,
|
|
pointerCount, pointerIds, pointerCoords,
|
|
mOrientedXPrecision, mOrientedYPrecision, mDownTime);
|
|
}
|
|
|
|
bool TouchInputMapper::isPointInsideSurface(int32_t x, int32_t y) {
|
|
if (mAxes.x.valid && mAxes.y.valid) {
|
|
return x >= mAxes.x.minValue && x <= mAxes.x.maxValue
|
|
&& y >= mAxes.y.minValue && y <= mAxes.y.maxValue;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
const TouchInputMapper::VirtualKey* TouchInputMapper::findVirtualKeyHitLvk(int32_t x, int32_t y) {
|
|
for (size_t i = 0; i < mVirtualKeys.size(); i++) {
|
|
const VirtualKey& virtualKey = mVirtualKeys[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)) {
|
|
return & virtualKey;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void TouchInputMapper::calculatePointerIds() {
|
|
uint32_t currentPointerCount = mCurrentTouch.pointerCount;
|
|
uint32_t lastPointerCount = mLastTouch.pointerCount;
|
|
|
|
if (currentPointerCount == 0) {
|
|
// No pointers to assign.
|
|
mCurrentTouch.idBits.clear();
|
|
} else if (lastPointerCount == 0) {
|
|
// All pointers are new.
|
|
mCurrentTouch.idBits.clear();
|
|
for (uint32_t i = 0; i < currentPointerCount; i++) {
|
|
mCurrentTouch.pointers[i].id = i;
|
|
mCurrentTouch.idToIndex[i] = i;
|
|
mCurrentTouch.idBits.markBit(i);
|
|
}
|
|
} else if (currentPointerCount == 1 && lastPointerCount == 1) {
|
|
// Only one pointer and no change in count so it must have the same id as before.
|
|
uint32_t id = mLastTouch.pointers[0].id;
|
|
mCurrentTouch.pointers[0].id = id;
|
|
mCurrentTouch.idToIndex[id] = 0;
|
|
mCurrentTouch.idBits.value = BitSet32::valueForBit(id);
|
|
} else {
|
|
// General case.
|
|
// We build a heap of squared euclidean distances between current and last pointers
|
|
// associated with the current and last pointer indices. Then, we find the best
|
|
// match (by distance) for each current pointer.
|
|
PointerDistanceHeapElement heap[MAX_POINTERS * MAX_POINTERS];
|
|
|
|
uint32_t heapSize = 0;
|
|
for (uint32_t currentPointerIndex = 0; currentPointerIndex < currentPointerCount;
|
|
currentPointerIndex++) {
|
|
for (uint32_t lastPointerIndex = 0; lastPointerIndex < lastPointerCount;
|
|
lastPointerIndex++) {
|
|
int64_t deltaX = mCurrentTouch.pointers[currentPointerIndex].x
|
|
- mLastTouch.pointers[lastPointerIndex].x;
|
|
int64_t deltaY = mCurrentTouch.pointers[currentPointerIndex].y
|
|
- mLastTouch.pointers[lastPointerIndex].y;
|
|
|
|
uint64_t distance = uint64_t(deltaX * deltaX + deltaY * deltaY);
|
|
|
|
// Insert new element into the heap (sift up).
|
|
heap[heapSize].currentPointerIndex = currentPointerIndex;
|
|
heap[heapSize].lastPointerIndex = lastPointerIndex;
|
|
heap[heapSize].distance = distance;
|
|
heapSize += 1;
|
|
}
|
|
}
|
|
|
|
// Heapify
|
|
for (uint32_t startIndex = heapSize / 2; startIndex != 0; ) {
|
|
startIndex -= 1;
|
|
for (uint32_t parentIndex = startIndex; ;) {
|
|
uint32_t childIndex = parentIndex * 2 + 1;
|
|
if (childIndex >= heapSize) {
|
|
break;
|
|
}
|
|
|
|
if (childIndex + 1 < heapSize
|
|
&& heap[childIndex + 1].distance < heap[childIndex].distance) {
|
|
childIndex += 1;
|
|
}
|
|
|
|
if (heap[parentIndex].distance <= heap[childIndex].distance) {
|
|
break;
|
|
}
|
|
|
|
swap(heap[parentIndex], heap[childIndex]);
|
|
parentIndex = childIndex;
|
|
}
|
|
}
|
|
|
|
#if DEBUG_POINTER_ASSIGNMENT
|
|
LOGD("calculatePointerIds - initial distance min-heap: size=%d", heapSize);
|
|
for (size_t i = 0; i < heapSize; i++) {
|
|
LOGD(" heap[%d]: cur=%d, last=%d, distance=%lld",
|
|
i, heap[i].currentPointerIndex, heap[i].lastPointerIndex,
|
|
heap[i].distance);
|
|
}
|
|
#endif
|
|
|
|
// Pull matches out by increasing order of distance.
|
|
// To avoid reassigning pointers that have already been matched, the loop keeps track
|
|
// of which last and current pointers have been matched using the matchedXXXBits variables.
|
|
// It also tracks the used pointer id bits.
|
|
BitSet32 matchedLastBits(0);
|
|
BitSet32 matchedCurrentBits(0);
|
|
BitSet32 usedIdBits(0);
|
|
bool first = true;
|
|
for (uint32_t i = min(currentPointerCount, lastPointerCount); i > 0; i--) {
|
|
for (;;) {
|
|
if (first) {
|
|
// The first time through the loop, we just consume the root element of
|
|
// the heap (the one with smallest distance).
|
|
first = false;
|
|
} else {
|
|
// Previous iterations consumed the root element of the heap.
|
|
// Pop root element off of the heap (sift down).
|
|
heapSize -= 1;
|
|
assert(heapSize > 0);
|
|
|
|
// Sift down.
|
|
heap[0] = heap[heapSize];
|
|
for (uint32_t parentIndex = 0; ;) {
|
|
uint32_t childIndex = parentIndex * 2 + 1;
|
|
if (childIndex >= heapSize) {
|
|
break;
|
|
}
|
|
|
|
if (childIndex + 1 < heapSize
|
|
&& heap[childIndex + 1].distance < heap[childIndex].distance) {
|
|
childIndex += 1;
|
|
}
|
|
|
|
if (heap[parentIndex].distance <= heap[childIndex].distance) {
|
|
break;
|
|
}
|
|
|
|
swap(heap[parentIndex], heap[childIndex]);
|
|
parentIndex = childIndex;
|
|
}
|
|
|
|
#if DEBUG_POINTER_ASSIGNMENT
|
|
LOGD("calculatePointerIds - reduced distance min-heap: size=%d", heapSize);
|
|
for (size_t i = 0; i < heapSize; i++) {
|
|
LOGD(" heap[%d]: cur=%d, last=%d, distance=%lld",
|
|
i, heap[i].currentPointerIndex, heap[i].lastPointerIndex,
|
|
heap[i].distance);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
uint32_t currentPointerIndex = heap[0].currentPointerIndex;
|
|
if (matchedCurrentBits.hasBit(currentPointerIndex)) continue; // already matched
|
|
|
|
uint32_t lastPointerIndex = heap[0].lastPointerIndex;
|
|
if (matchedLastBits.hasBit(lastPointerIndex)) continue; // already matched
|
|
|
|
matchedCurrentBits.markBit(currentPointerIndex);
|
|
matchedLastBits.markBit(lastPointerIndex);
|
|
|
|
uint32_t id = mLastTouch.pointers[lastPointerIndex].id;
|
|
mCurrentTouch.pointers[currentPointerIndex].id = id;
|
|
mCurrentTouch.idToIndex[id] = currentPointerIndex;
|
|
usedIdBits.markBit(id);
|
|
|
|
#if DEBUG_POINTER_ASSIGNMENT
|
|
LOGD("calculatePointerIds - matched: cur=%d, last=%d, id=%d, distance=%lld",
|
|
lastPointerIndex, currentPointerIndex, id, heap[0].distance);
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Assign fresh ids to new pointers.
|
|
if (currentPointerCount > lastPointerCount) {
|
|
for (uint32_t i = currentPointerCount - lastPointerCount; ;) {
|
|
uint32_t currentPointerIndex = matchedCurrentBits.firstUnmarkedBit();
|
|
uint32_t id = usedIdBits.firstUnmarkedBit();
|
|
|
|
mCurrentTouch.pointers[currentPointerIndex].id = id;
|
|
mCurrentTouch.idToIndex[id] = currentPointerIndex;
|
|
usedIdBits.markBit(id);
|
|
|
|
#if DEBUG_POINTER_ASSIGNMENT
|
|
LOGD("calculatePointerIds - assigned: cur=%d, id=%d",
|
|
currentPointerIndex, id);
|
|
#endif
|
|
|
|
if (--i == 0) break; // done
|
|
matchedCurrentBits.markBit(currentPointerIndex);
|
|
}
|
|
}
|
|
|
|
// Fix id bits.
|
|
mCurrentTouch.idBits = usedIdBits;
|
|
}
|
|
}
|
|
|
|
/* Special hack for devices that have bad screen data: if one of the
|
|
* points has moved more than a screen height from the last position,
|
|
* then drop it. */
|
|
bool TouchInputMapper::applyBadTouchFilter() {
|
|
// This hack requires valid axis parameters.
|
|
if (! mAxes.y.valid) {
|
|
return false;
|
|
}
|
|
|
|
uint32_t pointerCount = mCurrentTouch.pointerCount;
|
|
|
|
// Nothing to do if there are no points.
|
|
if (pointerCount == 0) {
|
|
return false;
|
|
}
|
|
|
|
// Don't do anything if a finger is going down or up. We run
|
|
// here before assigning pointer IDs, so there isn't a good
|
|
// way to do per-finger matching.
|
|
if (pointerCount != mLastTouch.pointerCount) {
|
|
return false;
|
|
}
|
|
|
|
// We consider a single movement across more than a 7/16 of
|
|
// the long size of the screen to be bad. This was a magic value
|
|
// determined by looking at the maximum distance it is feasible
|
|
// to actually move in one sample.
|
|
int32_t maxDeltaY = mAxes.y.getRange() * 7 / 16;
|
|
|
|
// XXX The original code in InputDevice.java included commented out
|
|
// code for testing the X axis. Note that when we drop a point
|
|
// we don't actually restore the old X either. Strange.
|
|
// The old code also tries to track when bad points were previously
|
|
// detected but it turns out that due to the placement of a "break"
|
|
// at the end of the loop, we never set mDroppedBadPoint to true
|
|
// so it is effectively dead code.
|
|
// Need to figure out if the old code is busted or just overcomplicated
|
|
// but working as intended.
|
|
|
|
// Look through all new points and see if any are farther than
|
|
// acceptable from all previous points.
|
|
for (uint32_t i = pointerCount; i-- > 0; ) {
|
|
int32_t y = mCurrentTouch.pointers[i].y;
|
|
int32_t closestY = INT_MAX;
|
|
int32_t closestDeltaY = 0;
|
|
|
|
#if DEBUG_HACKS
|
|
LOGD("BadTouchFilter: Looking at next point #%d: y=%d", i, y);
|
|
#endif
|
|
|
|
for (uint32_t j = pointerCount; j-- > 0; ) {
|
|
int32_t lastY = mLastTouch.pointers[j].y;
|
|
int32_t deltaY = abs(y - lastY);
|
|
|
|
#if DEBUG_HACKS
|
|
LOGD("BadTouchFilter: Comparing with last point #%d: y=%d deltaY=%d",
|
|
j, lastY, deltaY);
|
|
#endif
|
|
|
|
if (deltaY < maxDeltaY) {
|
|
goto SkipSufficientlyClosePoint;
|
|
}
|
|
if (deltaY < closestDeltaY) {
|
|
closestDeltaY = deltaY;
|
|
closestY = lastY;
|
|
}
|
|
}
|
|
|
|
// Must not have found a close enough match.
|
|
#if DEBUG_HACKS
|
|
LOGD("BadTouchFilter: Dropping bad point #%d: newY=%d oldY=%d deltaY=%d maxDeltaY=%d",
|
|
i, y, closestY, closestDeltaY, maxDeltaY);
|
|
#endif
|
|
|
|
mCurrentTouch.pointers[i].y = closestY;
|
|
return true; // XXX original code only corrects one point
|
|
|
|
SkipSufficientlyClosePoint: ;
|
|
}
|
|
|
|
// No change.
|
|
return false;
|
|
}
|
|
|
|
/* Special hack for devices that have bad screen data: drop points where
|
|
* the coordinate value for one axis has jumped to the other pointer's location.
|
|
*/
|
|
bool TouchInputMapper::applyJumpyTouchFilter() {
|
|
// This hack requires valid axis parameters.
|
|
if (! mAxes.y.valid) {
|
|
return false;
|
|
}
|
|
|
|
uint32_t pointerCount = mCurrentTouch.pointerCount;
|
|
if (mLastTouch.pointerCount != pointerCount) {
|
|
#if DEBUG_HACKS
|
|
LOGD("JumpyTouchFilter: Different pointer count %d -> %d",
|
|
mLastTouch.pointerCount, pointerCount);
|
|
for (uint32_t i = 0; i < pointerCount; i++) {
|
|
LOGD(" Pointer %d (%d, %d)", i,
|
|
mCurrentTouch.pointers[i].x, mCurrentTouch.pointers[i].y);
|
|
}
|
|
#endif
|
|
|
|
if (mJumpyTouchFilter.jumpyPointsDropped < JUMPY_TRANSITION_DROPS) {
|
|
if (mLastTouch.pointerCount == 1 && pointerCount == 2) {
|
|
// Just drop the first few events going from 1 to 2 pointers.
|
|
// They're bad often enough that they're not worth considering.
|
|
mCurrentTouch.pointerCount = 1;
|
|
mJumpyTouchFilter.jumpyPointsDropped += 1;
|
|
|
|
#if DEBUG_HACKS
|
|
LOGD("JumpyTouchFilter: Pointer 2 dropped");
|
|
#endif
|
|
return true;
|
|
} else if (mLastTouch.pointerCount == 2 && pointerCount == 1) {
|
|
// The event when we go from 2 -> 1 tends to be messed up too
|
|
mCurrentTouch.pointerCount = 2;
|
|
mCurrentTouch.pointers[0] = mLastTouch.pointers[0];
|
|
mCurrentTouch.pointers[1] = mLastTouch.pointers[1];
|
|
mJumpyTouchFilter.jumpyPointsDropped += 1;
|
|
|
|
#if DEBUG_HACKS
|
|
for (int32_t i = 0; i < 2; i++) {
|
|
LOGD("JumpyTouchFilter: Pointer %d replaced (%d, %d)", i,
|
|
mCurrentTouch.pointers[i].x, mCurrentTouch.pointers[i].y);
|
|
}
|
|
#endif
|
|
return true;
|
|
}
|
|
}
|
|
// Reset jumpy points dropped on other transitions or if limit exceeded.
|
|
mJumpyTouchFilter.jumpyPointsDropped = 0;
|
|
|
|
#if DEBUG_HACKS
|
|
LOGD("JumpyTouchFilter: Transition - drop limit reset");
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
// 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 (mJumpyTouchFilter.jumpyPointsDropped < JUMPY_DROP_LIMIT) {
|
|
int jumpyEpsilon = mAxes.y.getRange() / 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 = mCurrentTouch.pointers[i].x;
|
|
int32_t y = mCurrentTouch.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 - mCurrentTouch.pointers[j].x) <= jumpyEpsilon) {
|
|
dropX = true;
|
|
break;
|
|
}
|
|
|
|
if (abs(y - mCurrentTouch.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 - mLastTouch.pointers[j].y);
|
|
if (deltaY < smallestDeltaY) {
|
|
smallestDeltaY = deltaY;
|
|
replacementIndex = j;
|
|
}
|
|
}
|
|
distance = abs(x - mLastTouch.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 - mLastTouch.pointers[j].x);
|
|
if (deltaX < smallestDeltaX) {
|
|
smallestDeltaX = deltaX;
|
|
replacementIndex = j;
|
|
}
|
|
}
|
|
distance = abs(y - mLastTouch.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,
|
|
mLastTouch.pointers[badPointerReplacementIndex].x,
|
|
mLastTouch.pointers[badPointerReplacementIndex].y);
|
|
#endif
|
|
|
|
mCurrentTouch.pointers[badPointerIndex].x =
|
|
mLastTouch.pointers[badPointerReplacementIndex].x;
|
|
mCurrentTouch.pointers[badPointerIndex].y =
|
|
mLastTouch.pointers[badPointerReplacementIndex].y;
|
|
mJumpyTouchFilter.jumpyPointsDropped += 1;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
mJumpyTouchFilter.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 TouchInputMapper::applyAveragingTouchFilter() {
|
|
for (uint32_t currentIndex = 0; currentIndex < mCurrentTouch.pointerCount; currentIndex++) {
|
|
uint32_t id = mCurrentTouch.pointers[currentIndex].id;
|
|
int32_t x = mCurrentTouch.pointers[currentIndex].x;
|
|
int32_t y = mCurrentTouch.pointers[currentIndex].y;
|
|
int32_t pressure = mCurrentTouch.pointers[currentIndex].pressure;
|
|
|
|
if (mLastTouch.idBits.hasBit(id)) {
|
|
// Pointer was down before and is still down now.
|
|
// Compute average over history trace.
|
|
uint32_t start = mAveragingTouchFilter.historyStart[id];
|
|
uint32_t end = mAveragingTouchFilter.historyEnd[id];
|
|
|
|
int64_t deltaX = x - mAveragingTouchFilter.historyData[end].pointers[id].x;
|
|
int64_t deltaY = y - mAveragingTouchFilter.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.
|
|
mAveragingTouchFilter.historyStart[id] = start;
|
|
mAveragingTouchFilter.historyEnd[id] = end;
|
|
mAveragingTouchFilter.historyData[end].pointers[id].x = x;
|
|
mAveragingTouchFilter.historyData[end].pointers[id].y = y;
|
|
mAveragingTouchFilter.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 = mAveragingTouchFilter.historyData[start].pointers[id].x;
|
|
int32_t historicalY = mAveragingTouchFilter.historyData[start].pointers[id].y;
|
|
int32_t historicalPressure = mAveragingTouchFilter.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
|
|
|
|
mCurrentTouch.pointers[currentIndex].x = averagedX;
|
|
mCurrentTouch.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.
|
|
mAveragingTouchFilter.historyStart[id] = 0;
|
|
mAveragingTouchFilter.historyEnd[id] = 0;
|
|
mAveragingTouchFilter.historyData[0].pointers[id].x = x;
|
|
mAveragingTouchFilter.historyData[0].pointers[id].y = y;
|
|
mAveragingTouchFilter.historyData[0].pointers[id].pressure = pressure;
|
|
}
|
|
}
|
|
|
|
int32_t TouchInputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) {
|
|
{ // acquire virtual key lock
|
|
AutoMutex _l(mVirtualKeyLock);
|
|
|
|
if (mCurrentVirtualKey.down && mCurrentVirtualKey.keyCode == keyCode) {
|
|
return AKEY_STATE_VIRTUAL;
|
|
}
|
|
|
|
for (size_t i = 0; i < mVirtualKeys.size(); i++) {
|
|
const VirtualKey& virtualKey = mVirtualKeys[i];
|
|
if (virtualKey.keyCode == keyCode) {
|
|
return AKEY_STATE_UP;
|
|
}
|
|
}
|
|
} // release virtual key lock
|
|
|
|
return AKEY_STATE_UNKNOWN;
|
|
}
|
|
|
|
int32_t TouchInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) {
|
|
{ // acquire virtual key lock
|
|
AutoMutex _l(mVirtualKeyLock);
|
|
|
|
if (mCurrentVirtualKey.down && mCurrentVirtualKey.scanCode == scanCode) {
|
|
return AKEY_STATE_VIRTUAL;
|
|
}
|
|
|
|
for (size_t i = 0; i < mVirtualKeys.size(); i++) {
|
|
const VirtualKey& virtualKey = mVirtualKeys[i];
|
|
if (virtualKey.scanCode == scanCode) {
|
|
return AKEY_STATE_UP;
|
|
}
|
|
}
|
|
} // release virtual key lock
|
|
|
|
return AKEY_STATE_UNKNOWN;
|
|
}
|
|
|
|
bool TouchInputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
|
|
const int32_t* keyCodes, uint8_t* outFlags) {
|
|
{ // acquire virtual key lock
|
|
AutoMutex _l(mVirtualKeyLock);
|
|
|
|
for (size_t i = 0; i < mVirtualKeys.size(); i++) {
|
|
const VirtualKey& virtualKey = mVirtualKeys[i];
|
|
|
|
for (size_t i = 0; i < numCodes; i++) {
|
|
if (virtualKey.keyCode == keyCodes[i]) {
|
|
outFlags[i] = 1;
|
|
}
|
|
}
|
|
}
|
|
} // release virtual key lock
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// --- SingleTouchInputMapper ---
|
|
|
|
SingleTouchInputMapper::SingleTouchInputMapper(InputDevice* device, int32_t associatedDisplayId) :
|
|
TouchInputMapper(device, associatedDisplayId) {
|
|
initialize();
|
|
}
|
|
|
|
SingleTouchInputMapper::~SingleTouchInputMapper() {
|
|
}
|
|
|
|
void SingleTouchInputMapper::initialize() {
|
|
mAccumulator.clear();
|
|
|
|
mDown = false;
|
|
mX = 0;
|
|
mY = 0;
|
|
mPressure = 0;
|
|
mSize = 0;
|
|
}
|
|
|
|
void SingleTouchInputMapper::reset() {
|
|
TouchInputMapper::reset();
|
|
|
|
// Reinitialize.
|
|
initialize();
|
|
}
|
|
|
|
void SingleTouchInputMapper::process(const RawEvent* rawEvent) {
|
|
switch (rawEvent->type) {
|
|
case EV_KEY:
|
|
switch (rawEvent->scanCode) {
|
|
case BTN_TOUCH:
|
|
mAccumulator.fields |= Accumulator::FIELD_BTN_TOUCH;
|
|
mAccumulator.btnTouch = rawEvent->value != 0;
|
|
|
|
sync(rawEvent->when);
|
|
mAccumulator.clear();
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case EV_ABS:
|
|
switch (rawEvent->scanCode) {
|
|
case ABS_X:
|
|
mAccumulator.fields |= Accumulator::FIELD_ABS_X;
|
|
mAccumulator.absX = rawEvent->value;
|
|
break;
|
|
case ABS_Y:
|
|
mAccumulator.fields |= Accumulator::FIELD_ABS_Y;
|
|
mAccumulator.absY = rawEvent->value;
|
|
break;
|
|
case ABS_PRESSURE:
|
|
mAccumulator.fields |= Accumulator::FIELD_ABS_PRESSURE;
|
|
mAccumulator.absPressure = rawEvent->value;
|
|
break;
|
|
case ABS_TOOL_WIDTH:
|
|
mAccumulator.fields |= Accumulator::FIELD_ABS_TOOL_WIDTH;
|
|
mAccumulator.absToolWidth = rawEvent->value;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case EV_SYN:
|
|
switch (rawEvent->scanCode) {
|
|
case SYN_REPORT:
|
|
if (mAccumulator.isDirty()) {
|
|
sync(rawEvent->when);
|
|
mAccumulator.clear();
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void SingleTouchInputMapper::sync(nsecs_t when) {
|
|
/* Update device state */
|
|
|
|
uint32_t fields = mAccumulator.fields;
|
|
|
|
if (fields & Accumulator::FIELD_BTN_TOUCH) {
|
|
mDown = mAccumulator.btnTouch;
|
|
}
|
|
|
|
if (fields & Accumulator::FIELD_ABS_X) {
|
|
mX = mAccumulator.absX;
|
|
}
|
|
|
|
if (fields & Accumulator::FIELD_ABS_Y) {
|
|
mY = mAccumulator.absY;
|
|
}
|
|
|
|
if (fields & Accumulator::FIELD_ABS_PRESSURE) {
|
|
mPressure = mAccumulator.absPressure;
|
|
}
|
|
|
|
if (fields & Accumulator::FIELD_ABS_TOOL_WIDTH) {
|
|
mSize = mAccumulator.absToolWidth;
|
|
}
|
|
|
|
mCurrentTouch.clear();
|
|
|
|
if (mDown) {
|
|
mCurrentTouch.pointerCount = 1;
|
|
mCurrentTouch.pointers[0].id = 0;
|
|
mCurrentTouch.pointers[0].x = mX;
|
|
mCurrentTouch.pointers[0].y = mY;
|
|
mCurrentTouch.pointers[0].pressure = mPressure;
|
|
mCurrentTouch.pointers[0].size = mSize;
|
|
mCurrentTouch.pointers[0].touchMajor = mPressure;
|
|
mCurrentTouch.pointers[0].touchMinor = mPressure;
|
|
mCurrentTouch.pointers[0].toolMajor = mSize;
|
|
mCurrentTouch.pointers[0].toolMinor = mSize;
|
|
mCurrentTouch.pointers[0].orientation = 0;
|
|
mCurrentTouch.idToIndex[0] = 0;
|
|
mCurrentTouch.idBits.markBit(0);
|
|
}
|
|
|
|
syncTouch(when, true);
|
|
}
|
|
|
|
void SingleTouchInputMapper::configureAxes() {
|
|
TouchInputMapper::configureAxes();
|
|
|
|
// The axes are aliased to take into account the manner in which they are presented
|
|
// as part of the TouchData during the sync.
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_X, & mAxes.x);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_Y, & mAxes.y);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_PRESSURE, & mAxes.pressure);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_TOOL_WIDTH, & mAxes.size);
|
|
|
|
mAxes.touchMajor = mAxes.pressure;
|
|
mAxes.touchMinor = mAxes.pressure;
|
|
mAxes.toolMajor = mAxes.size;
|
|
mAxes.toolMinor = mAxes.size;
|
|
}
|
|
|
|
|
|
// --- MultiTouchInputMapper ---
|
|
|
|
MultiTouchInputMapper::MultiTouchInputMapper(InputDevice* device, int32_t associatedDisplayId) :
|
|
TouchInputMapper(device, associatedDisplayId) {
|
|
initialize();
|
|
}
|
|
|
|
MultiTouchInputMapper::~MultiTouchInputMapper() {
|
|
}
|
|
|
|
void MultiTouchInputMapper::initialize() {
|
|
mAccumulator.clear();
|
|
}
|
|
|
|
void MultiTouchInputMapper::reset() {
|
|
TouchInputMapper::reset();
|
|
|
|
// Reinitialize.
|
|
initialize();
|
|
}
|
|
|
|
void MultiTouchInputMapper::process(const RawEvent* rawEvent) {
|
|
switch (rawEvent->type) {
|
|
case EV_ABS: {
|
|
uint32_t pointerIndex = mAccumulator.pointerCount;
|
|
Accumulator::Pointer* pointer = & mAccumulator.pointers[pointerIndex];
|
|
|
|
switch (rawEvent->scanCode) {
|
|
case ABS_MT_POSITION_X:
|
|
pointer->fields |= Accumulator::FIELD_ABS_MT_POSITION_X;
|
|
pointer->absMTPositionX = rawEvent->value;
|
|
break;
|
|
case ABS_MT_POSITION_Y:
|
|
pointer->fields |= Accumulator::FIELD_ABS_MT_POSITION_Y;
|
|
pointer->absMTPositionY = rawEvent->value;
|
|
break;
|
|
case ABS_MT_TOUCH_MAJOR:
|
|
pointer->fields |= Accumulator::FIELD_ABS_MT_TOUCH_MAJOR;
|
|
pointer->absMTTouchMajor = rawEvent->value;
|
|
break;
|
|
case ABS_MT_TOUCH_MINOR:
|
|
pointer->fields |= Accumulator::FIELD_ABS_MT_TOUCH_MINOR;
|
|
pointer->absMTTouchMinor = rawEvent->value;
|
|
break;
|
|
case ABS_MT_WIDTH_MAJOR:
|
|
pointer->fields |= Accumulator::FIELD_ABS_MT_WIDTH_MAJOR;
|
|
pointer->absMTWidthMajor = rawEvent->value;
|
|
break;
|
|
case ABS_MT_WIDTH_MINOR:
|
|
pointer->fields |= Accumulator::FIELD_ABS_MT_WIDTH_MINOR;
|
|
pointer->absMTWidthMinor = rawEvent->value;
|
|
break;
|
|
case ABS_MT_ORIENTATION:
|
|
pointer->fields |= Accumulator::FIELD_ABS_MT_ORIENTATION;
|
|
pointer->absMTOrientation = rawEvent->value;
|
|
break;
|
|
case ABS_MT_TRACKING_ID:
|
|
pointer->fields |= Accumulator::FIELD_ABS_MT_TRACKING_ID;
|
|
pointer->absMTTrackingId = rawEvent->value;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case EV_SYN:
|
|
switch (rawEvent->scanCode) {
|
|
case SYN_MT_REPORT: {
|
|
// MultiTouch Sync: The driver has returned all data for *one* of the pointers.
|
|
uint32_t pointerIndex = mAccumulator.pointerCount;
|
|
|
|
if (mAccumulator.pointers[pointerIndex].fields) {
|
|
if (pointerIndex == MAX_POINTERS) {
|
|
LOGW("MultiTouch device driver returned more than maximum of %d pointers.",
|
|
MAX_POINTERS);
|
|
} else {
|
|
pointerIndex += 1;
|
|
mAccumulator.pointerCount = pointerIndex;
|
|
}
|
|
}
|
|
|
|
mAccumulator.pointers[pointerIndex].clear();
|
|
break;
|
|
}
|
|
|
|
case SYN_REPORT:
|
|
if (mAccumulator.isDirty()) {
|
|
sync(rawEvent->when);
|
|
mAccumulator.clear();
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void MultiTouchInputMapper::sync(nsecs_t when) {
|
|
static const uint32_t REQUIRED_FIELDS =
|
|
Accumulator::FIELD_ABS_MT_POSITION_X
|
|
| Accumulator::FIELD_ABS_MT_POSITION_Y
|
|
| Accumulator::FIELD_ABS_MT_TOUCH_MAJOR
|
|
| Accumulator::FIELD_ABS_MT_WIDTH_MAJOR;
|
|
|
|
/* Update device state */
|
|
|
|
uint32_t inCount = mAccumulator.pointerCount;
|
|
uint32_t outCount = 0;
|
|
bool havePointerIds = true;
|
|
|
|
mCurrentTouch.clear();
|
|
|
|
for (uint32_t inIndex = 0; inIndex < inCount; inIndex++) {
|
|
uint32_t fields = mAccumulator.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 (mAccumulator.pointers[inIndex].absMTTouchMajor <= 0) {
|
|
// Pointer is not down. Drop it.
|
|
continue;
|
|
}
|
|
|
|
mCurrentTouch.pointers[outCount].x = mAccumulator.pointers[inIndex].absMTPositionX;
|
|
mCurrentTouch.pointers[outCount].y = mAccumulator.pointers[inIndex].absMTPositionY;
|
|
|
|
mCurrentTouch.pointers[outCount].touchMajor =
|
|
mAccumulator.pointers[inIndex].absMTTouchMajor;
|
|
mCurrentTouch.pointers[outCount].touchMinor =
|
|
(fields & Accumulator::FIELD_ABS_MT_TOUCH_MINOR) != 0
|
|
? mAccumulator.pointers[inIndex].absMTTouchMinor
|
|
: mAccumulator.pointers[inIndex].absMTTouchMajor;
|
|
|
|
mCurrentTouch.pointers[outCount].toolMajor =
|
|
mAccumulator.pointers[inIndex].absMTWidthMajor;
|
|
mCurrentTouch.pointers[outCount].toolMinor =
|
|
(fields & Accumulator::FIELD_ABS_MT_WIDTH_MINOR) != 0
|
|
? mAccumulator.pointers[inIndex].absMTWidthMinor
|
|
: mAccumulator.pointers[inIndex].absMTWidthMajor;
|
|
|
|
mCurrentTouch.pointers[outCount].orientation =
|
|
(fields & Accumulator::FIELD_ABS_MT_ORIENTATION) != 0
|
|
? mAccumulator.pointers[inIndex].absMTOrientation : 0;
|
|
|
|
// Derive an approximation of pressure and size.
|
|
// 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.
|
|
mCurrentTouch.pointers[outCount].pressure = mAccumulator.pointers[inIndex].absMTTouchMajor;
|
|
mCurrentTouch.pointers[outCount].size = mAccumulator.pointers[inIndex].absMTWidthMajor;
|
|
|
|
if (havePointerIds) {
|
|
if (fields & Accumulator::
|
|
FIELD_ABS_MT_TRACKING_ID) {
|
|
uint32_t id = uint32_t(mAccumulator.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 {
|
|
mCurrentTouch.pointers[outCount].id = id;
|
|
mCurrentTouch.idToIndex[id] = outCount;
|
|
mCurrentTouch.idBits.markBit(id);
|
|
}
|
|
} else {
|
|
havePointerIds = false;
|
|
}
|
|
}
|
|
|
|
outCount += 1;
|
|
}
|
|
|
|
mCurrentTouch.pointerCount = outCount;
|
|
|
|
syncTouch(when, havePointerIds);
|
|
}
|
|
|
|
void MultiTouchInputMapper::configureAxes() {
|
|
TouchInputMapper::configureAxes();
|
|
|
|
// The axes are aliased to take into account the manner in which they are presented
|
|
// as part of the TouchData during the sync.
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_POSITION_X, & mAxes.x);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_POSITION_Y, & mAxes.y);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_TOUCH_MAJOR, & mAxes.touchMajor);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_TOUCH_MINOR, & mAxes.touchMinor);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_WIDTH_MAJOR, & mAxes.toolMajor);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_WIDTH_MINOR, & mAxes.toolMinor);
|
|
getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_ORIENTATION, & mAxes.orientation);
|
|
|
|
if (! mAxes.touchMinor.valid) {
|
|
mAxes.touchMinor = mAxes.touchMajor;
|
|
}
|
|
|
|
if (! mAxes.toolMinor.valid) {
|
|
mAxes.toolMinor = mAxes.toolMajor;
|
|
}
|
|
|
|
mAxes.pressure = mAxes.touchMajor;
|
|
mAxes.size = mAxes.toolMajor;
|
|
}
|
|
|
|
|
|
} // namespace android
|