Mouse pointer integration.
Added support for loading the pointer icon from a resource.
Moved the system server related bits of the input manager out
of libui and into libinput since they do not need to be linked into
applications.
Change-Id: Iec11e0725b3add2b905c51f8ea2c3b4b0d1a2d67
diff --git a/services/input/InputReader.cpp b/services/input/InputReader.cpp
new file mode 100644
index 0000000..7a45de6
--- /dev/null
+++ b/services/input/InputReader.cpp
@@ -0,0 +1,3620 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputReader"
+
+//#define LOG_NDEBUG 0
+
+// Log debug messages for each raw event received from the EventHub.
+#define DEBUG_RAW_EVENTS 0
+
+// Log debug messages about touch screen filtering hacks.
+#define DEBUG_HACKS 0
+
+// Log debug messages about virtual key processing.
+#define DEBUG_VIRTUAL_KEYS 0
+
+// Log debug messages about pointers.
+#define DEBUG_POINTERS 0
+
+// Log debug messages about pointer assignment calculations.
+#define DEBUG_POINTER_ASSIGNMENT 0
+
+#include "InputReader.h"
+
+#include <cutils/log.h>
+#include <ui/Keyboard.h>
+#include <ui/VirtualKeyMap.h>
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <limits.h>
+#include <math.h>
+
+#define INDENT " "
+#define INDENT2 " "
+#define INDENT3 " "
+#define INDENT4 " "
+
+namespace android {
+
+// --- Static Functions ---
+
+template<typename T>
+inline static T abs(const T& value) {
+ return value < 0 ? - value : value;
+}
+
+template<typename T>
+inline static T min(const T& a, const T& b) {
+ return a < b ? a : b;
+}
+
+template<typename T>
+inline static void swap(T& a, T& b) {
+ T temp = a;
+ a = b;
+ b = temp;
+}
+
+inline static float avg(float x, float y) {
+ return (x + y) / 2;
+}
+
+inline static float pythag(float x, float y) {
+ return sqrtf(x * x + y * y);
+}
+
+static inline const char* toString(bool value) {
+ return value ? "true" : "false";
+}
+
+static const int32_t keyCodeRotationMap[][4] = {
+ // key codes enumerated counter-clockwise with the original (unrotated) key first
+ // no rotation, 90 degree rotation, 180 degree rotation, 270 degree rotation
+ { AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT },
+ { AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN },
+ { AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT },
+ { AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP },
+};
+static const int keyCodeRotationMapSize =
+ sizeof(keyCodeRotationMap) / sizeof(keyCodeRotationMap[0]);
+
+int32_t rotateKeyCode(int32_t keyCode, int32_t orientation) {
+ if (orientation != DISPLAY_ORIENTATION_0) {
+ for (int i = 0; i < keyCodeRotationMapSize; i++) {
+ if (keyCode == keyCodeRotationMap[i][0]) {
+ return keyCodeRotationMap[i][orientation];
+ }
+ }
+ }
+ return keyCode;
+}
+
+static inline bool sourcesMatchMask(uint32_t sources, uint32_t sourceMask) {
+ return (sources & sourceMask & ~ AINPUT_SOURCE_CLASS_MASK) != 0;
+}
+
+
+// --- InputReader ---
+
+InputReader::InputReader(const sp<EventHubInterface>& eventHub,
+ const sp<InputReaderPolicyInterface>& policy,
+ const sp<InputDispatcherInterface>& dispatcher) :
+ mEventHub(eventHub), mPolicy(policy), mDispatcher(dispatcher),
+ mGlobalMetaState(0) {
+ configureExcludedDevices();
+ updateGlobalMetaState();
+ updateInputConfiguration();
+}
+
+InputReader::~InputReader() {
+ for (size_t i = 0; i < mDevices.size(); i++) {
+ delete mDevices.valueAt(i);
+ }
+}
+
+void InputReader::loopOnce() {
+ RawEvent rawEvent;
+ mEventHub->getEvent(& rawEvent);
+
+#if DEBUG_RAW_EVENTS
+ LOGD("Input event: device=%d type=0x%x scancode=%d keycode=%d value=%d",
+ rawEvent.deviceId, rawEvent.type, rawEvent.scanCode, rawEvent.keyCode,
+ rawEvent.value);
+#endif
+
+ process(& rawEvent);
+}
+
+void InputReader::process(const RawEvent* rawEvent) {
+ switch (rawEvent->type) {
+ case EventHubInterface::DEVICE_ADDED:
+ addDevice(rawEvent->deviceId);
+ break;
+
+ case EventHubInterface::DEVICE_REMOVED:
+ removeDevice(rawEvent->deviceId);
+ break;
+
+ case EventHubInterface::FINISHED_DEVICE_SCAN:
+ handleConfigurationChanged(rawEvent->when);
+ break;
+
+ default:
+ consumeEvent(rawEvent);
+ break;
+ }
+}
+
+void InputReader::addDevice(int32_t deviceId) {
+ String8 name = mEventHub->getDeviceName(deviceId);
+ uint32_t classes = mEventHub->getDeviceClasses(deviceId);
+
+ InputDevice* device = createDevice(deviceId, name, classes);
+ device->configure();
+
+ if (device->isIgnored()) {
+ LOGI("Device added: id=%d, name='%s' (ignored non-input device)", deviceId, name.string());
+ } else {
+ LOGI("Device added: id=%d, name='%s', sources=0x%08x", deviceId, name.string(),
+ device->getSources());
+ }
+
+ bool added = false;
+ { // acquire device registry writer lock
+ RWLock::AutoWLock _wl(mDeviceRegistryLock);
+
+ ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
+ if (deviceIndex < 0) {
+ mDevices.add(deviceId, device);
+ added = true;
+ }
+ } // release device registry writer lock
+
+ if (! added) {
+ LOGW("Ignoring spurious device added event for deviceId %d.", deviceId);
+ delete device;
+ return;
+ }
+}
+
+void InputReader::removeDevice(int32_t deviceId) {
+ bool removed = false;
+ InputDevice* device = NULL;
+ { // acquire device registry writer lock
+ RWLock::AutoWLock _wl(mDeviceRegistryLock);
+
+ ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
+ if (deviceIndex >= 0) {
+ device = mDevices.valueAt(deviceIndex);
+ mDevices.removeItemsAt(deviceIndex, 1);
+ removed = true;
+ }
+ } // release device registry writer lock
+
+ if (! removed) {
+ LOGW("Ignoring spurious device removed event for deviceId %d.", deviceId);
+ return;
+ }
+
+ if (device->isIgnored()) {
+ LOGI("Device removed: id=%d, name='%s' (ignored non-input device)",
+ device->getId(), device->getName().string());
+ } else {
+ LOGI("Device removed: id=%d, name='%s', sources=0x%08x",
+ device->getId(), device->getName().string(), device->getSources());
+ }
+
+ device->reset();
+
+ delete device;
+}
+
+InputDevice* InputReader::createDevice(int32_t deviceId, const String8& name, uint32_t classes) {
+ InputDevice* device = new InputDevice(this, deviceId, name);
+
+ // Switch-like devices.
+ if (classes & INPUT_DEVICE_CLASS_SWITCH) {
+ device->addMapper(new SwitchInputMapper(device));
+ }
+
+ // Keyboard-like devices.
+ uint32_t keyboardSources = 0;
+ int32_t keyboardType = AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC;
+ if (classes & INPUT_DEVICE_CLASS_KEYBOARD) {
+ keyboardSources |= AINPUT_SOURCE_KEYBOARD;
+ }
+ if (classes & INPUT_DEVICE_CLASS_ALPHAKEY) {
+ keyboardType = AINPUT_KEYBOARD_TYPE_ALPHABETIC;
+ }
+ if (classes & INPUT_DEVICE_CLASS_DPAD) {
+ keyboardSources |= AINPUT_SOURCE_DPAD;
+ }
+
+ if (keyboardSources != 0) {
+ device->addMapper(new KeyboardInputMapper(device, keyboardSources, keyboardType));
+ }
+
+ // Cursor-like devices.
+ if (classes & INPUT_DEVICE_CLASS_CURSOR) {
+ device->addMapper(new CursorInputMapper(device));
+ }
+
+ // Touchscreen-like devices.
+ if (classes & INPUT_DEVICE_CLASS_TOUCHSCREEN_MT) {
+ device->addMapper(new MultiTouchInputMapper(device));
+ } else if (classes & INPUT_DEVICE_CLASS_TOUCHSCREEN) {
+ device->addMapper(new SingleTouchInputMapper(device));
+ }
+
+ return device;
+}
+
+void InputReader::consumeEvent(const RawEvent* rawEvent) {
+ int32_t deviceId = rawEvent->deviceId;
+
+ { // acquire device registry reader lock
+ RWLock::AutoRLock _rl(mDeviceRegistryLock);
+
+ ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
+ if (deviceIndex < 0) {
+ LOGW("Discarding event for unknown deviceId %d.", deviceId);
+ return;
+ }
+
+ InputDevice* device = mDevices.valueAt(deviceIndex);
+ if (device->isIgnored()) {
+ //LOGD("Discarding event for ignored deviceId %d.", deviceId);
+ return;
+ }
+
+ device->process(rawEvent);
+ } // release device registry reader lock
+}
+
+void InputReader::handleConfigurationChanged(nsecs_t when) {
+ // Reset global meta state because it depends on the list of all configured devices.
+ updateGlobalMetaState();
+
+ // Update input configuration.
+ updateInputConfiguration();
+
+ // Enqueue configuration changed.
+ mDispatcher->notifyConfigurationChanged(when);
+}
+
+void InputReader::configureExcludedDevices() {
+ Vector<String8> excludedDeviceNames;
+ mPolicy->getExcludedDeviceNames(excludedDeviceNames);
+
+ for (size_t i = 0; i < excludedDeviceNames.size(); i++) {
+ mEventHub->addExcludedDevice(excludedDeviceNames[i]);
+ }
+}
+
+void InputReader::updateGlobalMetaState() {
+ { // acquire state lock
+ AutoMutex _l(mStateLock);
+
+ mGlobalMetaState = 0;
+
+ { // acquire device registry reader lock
+ RWLock::AutoRLock _rl(mDeviceRegistryLock);
+
+ for (size_t i = 0; i < mDevices.size(); i++) {
+ InputDevice* device = mDevices.valueAt(i);
+ mGlobalMetaState |= device->getMetaState();
+ }
+ } // release device registry reader lock
+ } // release state lock
+}
+
+int32_t InputReader::getGlobalMetaState() {
+ { // acquire state lock
+ AutoMutex _l(mStateLock);
+
+ return mGlobalMetaState;
+ } // release state lock
+}
+
+void InputReader::updateInputConfiguration() {
+ { // acquire state lock
+ AutoMutex _l(mStateLock);
+
+ int32_t touchScreenConfig = InputConfiguration::TOUCHSCREEN_NOTOUCH;
+ int32_t keyboardConfig = InputConfiguration::KEYBOARD_NOKEYS;
+ int32_t navigationConfig = InputConfiguration::NAVIGATION_NONAV;
+ { // acquire device registry reader lock
+ RWLock::AutoRLock _rl(mDeviceRegistryLock);
+
+ InputDeviceInfo deviceInfo;
+ for (size_t i = 0; i < mDevices.size(); i++) {
+ InputDevice* device = mDevices.valueAt(i);
+ device->getDeviceInfo(& deviceInfo);
+ uint32_t sources = deviceInfo.getSources();
+
+ if ((sources & AINPUT_SOURCE_TOUCHSCREEN) == AINPUT_SOURCE_TOUCHSCREEN) {
+ touchScreenConfig = InputConfiguration::TOUCHSCREEN_FINGER;
+ }
+ if ((sources & AINPUT_SOURCE_TRACKBALL) == AINPUT_SOURCE_TRACKBALL) {
+ navigationConfig = InputConfiguration::NAVIGATION_TRACKBALL;
+ } else if ((sources & AINPUT_SOURCE_DPAD) == AINPUT_SOURCE_DPAD) {
+ navigationConfig = InputConfiguration::NAVIGATION_DPAD;
+ }
+ if (deviceInfo.getKeyboardType() == AINPUT_KEYBOARD_TYPE_ALPHABETIC) {
+ keyboardConfig = InputConfiguration::KEYBOARD_QWERTY;
+ }
+ }
+ } // release device registry reader lock
+
+ mInputConfiguration.touchScreen = touchScreenConfig;
+ mInputConfiguration.keyboard = keyboardConfig;
+ mInputConfiguration.navigation = navigationConfig;
+ } // release state lock
+}
+
+void InputReader::getInputConfiguration(InputConfiguration* outConfiguration) {
+ { // acquire state lock
+ AutoMutex _l(mStateLock);
+
+ *outConfiguration = mInputConfiguration;
+ } // release state lock
+}
+
+status_t InputReader::getInputDeviceInfo(int32_t deviceId, InputDeviceInfo* outDeviceInfo) {
+ { // acquire device registry reader lock
+ RWLock::AutoRLock _rl(mDeviceRegistryLock);
+
+ ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
+ if (deviceIndex < 0) {
+ return NAME_NOT_FOUND;
+ }
+
+ InputDevice* device = mDevices.valueAt(deviceIndex);
+ if (device->isIgnored()) {
+ return NAME_NOT_FOUND;
+ }
+
+ device->getDeviceInfo(outDeviceInfo);
+ return OK;
+ } // release device registy reader lock
+}
+
+void InputReader::getInputDeviceIds(Vector<int32_t>& outDeviceIds) {
+ outDeviceIds.clear();
+
+ { // acquire device registry reader lock
+ RWLock::AutoRLock _rl(mDeviceRegistryLock);
+
+ size_t numDevices = mDevices.size();
+ for (size_t i = 0; i < numDevices; i++) {
+ InputDevice* device = mDevices.valueAt(i);
+ if (! device->isIgnored()) {
+ outDeviceIds.add(device->getId());
+ }
+ }
+ } // release device registy reader lock
+}
+
+int32_t InputReader::getKeyCodeState(int32_t deviceId, uint32_t sourceMask,
+ int32_t keyCode) {
+ return getState(deviceId, sourceMask, keyCode, & InputDevice::getKeyCodeState);
+}
+
+int32_t InputReader::getScanCodeState(int32_t deviceId, uint32_t sourceMask,
+ int32_t scanCode) {
+ return getState(deviceId, sourceMask, scanCode, & InputDevice::getScanCodeState);
+}
+
+int32_t InputReader::getSwitchState(int32_t deviceId, uint32_t sourceMask, int32_t switchCode) {
+ return getState(deviceId, sourceMask, switchCode, & InputDevice::getSwitchState);
+}
+
+int32_t InputReader::getState(int32_t deviceId, uint32_t sourceMask, int32_t code,
+ GetStateFunc getStateFunc) {
+ { // acquire device registry reader lock
+ RWLock::AutoRLock _rl(mDeviceRegistryLock);
+
+ int32_t result = AKEY_STATE_UNKNOWN;
+ if (deviceId >= 0) {
+ ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
+ if (deviceIndex >= 0) {
+ InputDevice* device = mDevices.valueAt(deviceIndex);
+ if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) {
+ result = (device->*getStateFunc)(sourceMask, code);
+ }
+ }
+ } else {
+ size_t numDevices = mDevices.size();
+ for (size_t i = 0; i < numDevices; i++) {
+ InputDevice* device = mDevices.valueAt(i);
+ if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) {
+ result = (device->*getStateFunc)(sourceMask, code);
+ if (result >= AKEY_STATE_DOWN) {
+ return result;
+ }
+ }
+ }
+ }
+ return result;
+ } // release device registy reader lock
+}
+
+bool InputReader::hasKeys(int32_t deviceId, uint32_t sourceMask,
+ size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) {
+ memset(outFlags, 0, numCodes);
+ return markSupportedKeyCodes(deviceId, sourceMask, numCodes, keyCodes, outFlags);
+}
+
+bool InputReader::markSupportedKeyCodes(int32_t deviceId, uint32_t sourceMask, size_t numCodes,
+ const int32_t* keyCodes, uint8_t* outFlags) {
+ { // acquire device registry reader lock
+ RWLock::AutoRLock _rl(mDeviceRegistryLock);
+ bool result = false;
+ if (deviceId >= 0) {
+ ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
+ if (deviceIndex >= 0) {
+ InputDevice* device = mDevices.valueAt(deviceIndex);
+ if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) {
+ result = device->markSupportedKeyCodes(sourceMask,
+ numCodes, keyCodes, outFlags);
+ }
+ }
+ } else {
+ size_t numDevices = mDevices.size();
+ for (size_t i = 0; i < numDevices; i++) {
+ InputDevice* device = mDevices.valueAt(i);
+ if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) {
+ result |= device->markSupportedKeyCodes(sourceMask,
+ numCodes, keyCodes, outFlags);
+ }
+ }
+ }
+ return result;
+ } // release device registy reader lock
+}
+
+void InputReader::dump(String8& dump) {
+ mEventHub->dump(dump);
+ dump.append("\n");
+
+ dump.append("Input Reader State:\n");
+
+ { // acquire device registry reader lock
+ RWLock::AutoRLock _rl(mDeviceRegistryLock);
+
+ for (size_t i = 0; i < mDevices.size(); i++) {
+ mDevices.valueAt(i)->dump(dump);
+ }
+ } // release device registy reader lock
+}
+
+
+// --- InputReaderThread ---
+
+InputReaderThread::InputReaderThread(const sp<InputReaderInterface>& reader) :
+ Thread(/*canCallJava*/ true), mReader(reader) {
+}
+
+InputReaderThread::~InputReaderThread() {
+}
+
+bool InputReaderThread::threadLoop() {
+ mReader->loopOnce();
+ return true;
+}
+
+
+// --- InputDevice ---
+
+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();
+}
+
+static void dumpMotionRange(String8& dump, const InputDeviceInfo& deviceInfo,
+ int32_t rangeType, const char* name) {
+ const InputDeviceInfo::MotionRange* range = deviceInfo.getMotionRange(rangeType);
+ if (range) {
+ dump.appendFormat(INDENT3 "%s: min=%0.3f, max=%0.3f, flat=%0.3f, fuzz=%0.3f\n",
+ name, range->min, range->max, range->flat, range->fuzz);
+ }
+}
+
+void InputDevice::dump(String8& dump) {
+ InputDeviceInfo deviceInfo;
+ getDeviceInfo(& deviceInfo);
+
+ dump.appendFormat(INDENT "Device %d: %s\n", deviceInfo.getId(),
+ deviceInfo.getName().string());
+ dump.appendFormat(INDENT2 "Sources: 0x%08x\n", deviceInfo.getSources());
+ dump.appendFormat(INDENT2 "KeyboardType: %d\n", deviceInfo.getKeyboardType());
+ if (!deviceInfo.getMotionRanges().isEmpty()) {
+ dump.append(INDENT2 "Motion Ranges:\n");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_X, "X");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_Y, "Y");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_PRESSURE, "Pressure");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_SIZE, "Size");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_TOUCH_MAJOR, "TouchMajor");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_TOUCH_MINOR, "TouchMinor");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_TOOL_MAJOR, "ToolMajor");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_TOOL_MINOR, "ToolMinor");
+ dumpMotionRange(dump, deviceInfo, AINPUT_MOTION_RANGE_ORIENTATION, "Orientation");
+ }
+
+ size_t numMappers = mMappers.size();
+ for (size_t i = 0; i < numMappers; i++) {
+ InputMapper* mapper = mMappers[i];
+ mapper->dump(dump);
+ }
+}
+
+void InputDevice::addMapper(InputMapper* mapper) {
+ mMappers.add(mapper);
+}
+
+void InputDevice::configure() {
+ if (! isIgnored()) {
+ mContext->getEventHub()->getConfiguration(mId, &mConfiguration);
+ }
+
+ 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::dump(String8& dump) {
+}
+
+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;
+}
+
+
+// --- 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) {
+ getDispatcher()->notifySwitch(when, switchCode, switchValue, 0);
+}
+
+int32_t SwitchInputMapper::getSwitchState(uint32_t sourceMask, int32_t switchCode) {
+ return getEventHub()->getSwitchState(getDeviceId(), switchCode);
+}
+
+
+// --- KeyboardInputMapper ---
+
+KeyboardInputMapper::KeyboardInputMapper(InputDevice* device,
+ uint32_t sources, int32_t keyboardType) :
+ InputMapper(device), mSources(sources),
+ mKeyboardType(keyboardType) {
+ initializeLocked();
+}
+
+KeyboardInputMapper::~KeyboardInputMapper() {
+}
+
+void KeyboardInputMapper::initializeLocked() {
+ mLocked.metaState = AMETA_NONE;
+ mLocked.downTime = 0;
+}
+
+uint32_t KeyboardInputMapper::getSources() {
+ return mSources;
+}
+
+void KeyboardInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
+ InputMapper::populateDeviceInfo(info);
+
+ info->setKeyboardType(mKeyboardType);
+}
+
+void KeyboardInputMapper::dump(String8& dump) {
+ { // acquire lock
+ AutoMutex _l(mLock);
+ dump.append(INDENT2 "Keyboard Input Mapper:\n");
+ dumpParameters(dump);
+ dump.appendFormat(INDENT3 "KeyboardType: %d\n", mKeyboardType);
+ dump.appendFormat(INDENT3 "KeyDowns: %d keys currently down\n", mLocked.keyDowns.size());
+ dump.appendFormat(INDENT3 "MetaState: 0x%0x\n", mLocked.metaState);
+ dump.appendFormat(INDENT3 "DownTime: %lld\n", mLocked.downTime);
+ } // release lock
+}
+
+
+void KeyboardInputMapper::configure() {
+ InputMapper::configure();
+
+ // Configure basic parameters.
+ configureParameters();
+
+ // Reset LEDs.
+ {
+ AutoMutex _l(mLock);
+ resetLedStateLocked();
+ }
+}
+
+void KeyboardInputMapper::configureParameters() {
+ mParameters.orientationAware = false;
+ getDevice()->getConfiguration().tryGetProperty(String8("keyboard.orientationAware"),
+ mParameters.orientationAware);
+
+ mParameters.associatedDisplayId = mParameters.orientationAware ? 0 : -1;
+}
+
+void KeyboardInputMapper::dumpParameters(String8& dump) {
+ dump.append(INDENT3 "Parameters:\n");
+ dump.appendFormat(INDENT4 "AssociatedDisplayId: %d\n",
+ mParameters.associatedDisplayId);
+ dump.appendFormat(INDENT4 "OrientationAware: %s\n",
+ toString(mParameters.orientationAware));
+}
+
+void KeyboardInputMapper::reset() {
+ for (;;) {
+ int32_t keyCode, scanCode;
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ // Synthesize key up event on reset if keys are currently down.
+ if (mLocked.keyDowns.isEmpty()) {
+ initializeLocked();
+ resetLedStateLocked();
+ break; // done
+ }
+
+ const KeyDown& keyDown = mLocked.keyDowns.top();
+ keyCode = keyDown.keyCode;
+ scanCode = keyDown.scanCode;
+ } // release lock
+
+ nsecs_t when = systemTime(SYSTEM_TIME_MONOTONIC);
+ processKey(when, false, keyCode, scanCode, 0);
+ }
+
+ InputMapper::reset();
+ 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) {
+ int32_t newMetaState;
+ nsecs_t downTime;
+ bool metaStateChanged = false;
+
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ if (down) {
+ // Rotate key codes according to orientation if needed.
+ // Note: getDisplayInfo is non-reentrant so we can continue holding the lock.
+ if (mParameters.orientationAware && mParameters.associatedDisplayId >= 0) {
+ int32_t orientation;
+ if (!getPolicy()->getDisplayInfo(mParameters.associatedDisplayId,
+ NULL, NULL, & orientation)) {
+ orientation = DISPLAY_ORIENTATION_0;
+ }
+
+ keyCode = rotateKeyCode(keyCode, orientation);
+ }
+
+ // Add key down.
+ ssize_t keyDownIndex = findKeyDownLocked(scanCode);
+ if (keyDownIndex >= 0) {
+ // key repeat, be sure to use same keycode as before in case of rotation
+ keyCode = mLocked.keyDowns.itemAt(keyDownIndex).keyCode;
+ } else {
+ // key down
+ mLocked.keyDowns.push();
+ KeyDown& keyDown = mLocked.keyDowns.editTop();
+ keyDown.keyCode = keyCode;
+ keyDown.scanCode = scanCode;
+ }
+
+ mLocked.downTime = when;
+ } else {
+ // Remove key down.
+ ssize_t keyDownIndex = findKeyDownLocked(scanCode);
+ if (keyDownIndex >= 0) {
+ // key up, be sure to use same keycode as before in case of rotation
+ keyCode = mLocked.keyDowns.itemAt(keyDownIndex).keyCode;
+ mLocked.keyDowns.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 = mLocked.metaState;
+ newMetaState = updateMetaState(keyCode, down, oldMetaState);
+ if (oldMetaState != newMetaState) {
+ mLocked.metaState = newMetaState;
+ metaStateChanged = true;
+ updateLedStateLocked(false);
+ }
+
+ downTime = mLocked.downTime;
+ } // release lock
+
+ if (metaStateChanged) {
+ getContext()->updateGlobalMetaState();
+ }
+
+ if (policyFlags & POLICY_FLAG_FUNCTION) {
+ newMetaState |= AMETA_FUNCTION_ON;
+ }
+ getDispatcher()->notifyKey(when, getDeviceId(), mSources, policyFlags,
+ down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP,
+ AKEY_EVENT_FLAG_FROM_SYSTEM, keyCode, scanCode, newMetaState, downTime);
+}
+
+ssize_t KeyboardInputMapper::findKeyDownLocked(int32_t scanCode) {
+ size_t n = mLocked.keyDowns.size();
+ for (size_t i = 0; i < n; i++) {
+ if (mLocked.keyDowns[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() {
+ { // acquire lock
+ AutoMutex _l(mLock);
+ return mLocked.metaState;
+ } // release lock
+}
+
+void KeyboardInputMapper::resetLedStateLocked() {
+ initializeLedStateLocked(mLocked.capsLockLedState, LED_CAPSL);
+ initializeLedStateLocked(mLocked.numLockLedState, LED_NUML);
+ initializeLedStateLocked(mLocked.scrollLockLedState, LED_SCROLLL);
+
+ updateLedStateLocked(true);
+}
+
+void KeyboardInputMapper::initializeLedStateLocked(LockedState::LedState& ledState, int32_t led) {
+ ledState.avail = getEventHub()->hasLed(getDeviceId(), led);
+ ledState.on = false;
+}
+
+void KeyboardInputMapper::updateLedStateLocked(bool reset) {
+ updateLedStateForModifierLocked(mLocked.capsLockLedState, LED_CAPSL,
+ AMETA_CAPS_LOCK_ON, reset);
+ updateLedStateForModifierLocked(mLocked.numLockLedState, LED_NUML,
+ AMETA_NUM_LOCK_ON, reset);
+ updateLedStateForModifierLocked(mLocked.scrollLockLedState, LED_SCROLLL,
+ AMETA_SCROLL_LOCK_ON, reset);
+}
+
+void KeyboardInputMapper::updateLedStateForModifierLocked(LockedState::LedState& ledState,
+ int32_t led, int32_t modifier, bool reset) {
+ if (ledState.avail) {
+ bool desiredState = (mLocked.metaState & modifier) != 0;
+ if (reset || ledState.on != desiredState) {
+ getEventHub()->setLedState(getDeviceId(), led, desiredState);
+ ledState.on = desiredState;
+ }
+ }
+}
+
+
+// --- CursorInputMapper ---
+
+CursorInputMapper::CursorInputMapper(InputDevice* device) :
+ InputMapper(device) {
+ initializeLocked();
+}
+
+CursorInputMapper::~CursorInputMapper() {
+}
+
+uint32_t CursorInputMapper::getSources() {
+ return mSources;
+}
+
+void CursorInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
+ InputMapper::populateDeviceInfo(info);
+
+ if (mParameters.mode == Parameters::MODE_POINTER) {
+ float minX, minY, maxX, maxY;
+ if (mPointerController->getBounds(&minX, &minY, &maxX, &maxY)) {
+ info->addMotionRange(AINPUT_MOTION_RANGE_X, minX, maxX, 0.0f, 0.0f);
+ info->addMotionRange(AINPUT_MOTION_RANGE_Y, minY, maxY, 0.0f, 0.0f);
+ }
+ } else {
+ 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);
+ }
+ info->addMotionRange(AINPUT_MOTION_RANGE_PRESSURE, 0.0f, 1.0f, 0.0f, 0.0f);
+}
+
+void CursorInputMapper::dump(String8& dump) {
+ { // acquire lock
+ AutoMutex _l(mLock);
+ dump.append(INDENT2 "Cursor Input Mapper:\n");
+ dumpParameters(dump);
+ dump.appendFormat(INDENT3 "XPrecision: %0.3f\n", mXPrecision);
+ dump.appendFormat(INDENT3 "YPrecision: %0.3f\n", mYPrecision);
+ dump.appendFormat(INDENT3 "Down: %s\n", toString(mLocked.down));
+ dump.appendFormat(INDENT3 "DownTime: %lld\n", mLocked.downTime);
+ } // release lock
+}
+
+void CursorInputMapper::configure() {
+ InputMapper::configure();
+
+ // Configure basic parameters.
+ configureParameters();
+
+ // Configure device mode.
+ switch (mParameters.mode) {
+ case Parameters::MODE_POINTER:
+ mSources = AINPUT_SOURCE_MOUSE;
+ mXPrecision = 1.0f;
+ mYPrecision = 1.0f;
+ mXScale = 1.0f;
+ mYScale = 1.0f;
+ mPointerController = getPolicy()->obtainPointerController(getDeviceId());
+ break;
+ case Parameters::MODE_NAVIGATION:
+ mSources = AINPUT_SOURCE_TRACKBALL;
+ mXPrecision = TRACKBALL_MOVEMENT_THRESHOLD;
+ mYPrecision = TRACKBALL_MOVEMENT_THRESHOLD;
+ mXScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD;
+ mYScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD;
+ break;
+ }
+}
+
+void CursorInputMapper::configureParameters() {
+ mParameters.mode = Parameters::MODE_POINTER;
+ String8 cursorModeString;
+ if (getDevice()->getConfiguration().tryGetProperty(String8("cursor.mode"), cursorModeString)) {
+ if (cursorModeString == "navigation") {
+ mParameters.mode = Parameters::MODE_NAVIGATION;
+ } else if (cursorModeString != "pointer" && cursorModeString != "default") {
+ LOGW("Invalid value for cursor.mode: '%s'", cursorModeString.string());
+ }
+ }
+
+ mParameters.orientationAware = false;
+ getDevice()->getConfiguration().tryGetProperty(String8("cursor.orientationAware"),
+ mParameters.orientationAware);
+
+ mParameters.associatedDisplayId = mParameters.mode == Parameters::MODE_POINTER
+ || mParameters.orientationAware ? 0 : -1;
+}
+
+void CursorInputMapper::dumpParameters(String8& dump) {
+ dump.append(INDENT3 "Parameters:\n");
+ dump.appendFormat(INDENT4 "AssociatedDisplayId: %d\n",
+ mParameters.associatedDisplayId);
+
+ switch (mParameters.mode) {
+ case Parameters::MODE_POINTER:
+ dump.append(INDENT4 "Mode: pointer\n");
+ break;
+ case Parameters::MODE_NAVIGATION:
+ dump.append(INDENT4 "Mode: navigation\n");
+ break;
+ default:
+ assert(false);
+ }
+
+ dump.appendFormat(INDENT4 "OrientationAware: %s\n",
+ toString(mParameters.orientationAware));
+}
+
+void CursorInputMapper::initializeLocked() {
+ mAccumulator.clear();
+
+ mLocked.down = false;
+ mLocked.downTime = 0;
+}
+
+void CursorInputMapper::reset() {
+ for (;;) {
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ if (! mLocked.down) {
+ initializeLocked();
+ break; // done
+ }
+ } // release lock
+
+ // Synthesize button up event on reset.
+ nsecs_t when = systemTime(SYSTEM_TIME_MONOTONIC);
+ mAccumulator.fields = Accumulator::FIELD_BTN_MOUSE;
+ mAccumulator.btnMouse = false;
+ sync(when);
+ }
+
+ InputMapper::reset();
+}
+
+void CursorInputMapper::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 now since BTN_MOUSE is not necessarily followed by SYN_REPORT and
+ // we need to ensure that we report the up/down promptly.
+ sync(rawEvent->when);
+ 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:
+ sync(rawEvent->when);
+ break;
+ }
+ break;
+ }
+}
+
+void CursorInputMapper::sync(nsecs_t when) {
+ uint32_t fields = mAccumulator.fields;
+ if (fields == 0) {
+ return; // no new state changes, so nothing to do
+ }
+
+ int motionEventAction;
+ PointerCoords pointerCoords;
+ nsecs_t downTime;
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ bool downChanged = fields & Accumulator::FIELD_BTN_MOUSE;
+
+ if (downChanged) {
+ if (mAccumulator.btnMouse) {
+ mLocked.down = true;
+ mLocked.downTime = when;
+ } else {
+ mLocked.down = false;
+ }
+ }
+
+ downTime = mLocked.downTime;
+ float deltaX = fields & Accumulator::FIELD_REL_X ? mAccumulator.relX * mXScale : 0.0f;
+ float deltaY = fields & Accumulator::FIELD_REL_Y ? mAccumulator.relY * mYScale : 0.0f;
+
+ if (downChanged) {
+ motionEventAction = mLocked.down ? AMOTION_EVENT_ACTION_DOWN : AMOTION_EVENT_ACTION_UP;
+ } else {
+ motionEventAction = AMOTION_EVENT_ACTION_MOVE;
+ }
+
+ if (mParameters.orientationAware && mParameters.associatedDisplayId >= 0
+ && (deltaX != 0.0f || deltaY != 0.0f)) {
+ // Rotate motion based on display orientation if needed.
+ // Note: getDisplayInfo is non-reentrant so we can continue holding the lock.
+ int32_t orientation;
+ if (! getPolicy()->getDisplayInfo(mParameters.associatedDisplayId,
+ NULL, NULL, & orientation)) {
+ orientation = DISPLAY_ORIENTATION_0;
+ }
+
+ float temp;
+ switch (orientation) {
+ case DISPLAY_ORIENTATION_90:
+ temp = deltaX;
+ deltaX = deltaY;
+ deltaY = -temp;
+ break;
+
+ case DISPLAY_ORIENTATION_180:
+ deltaX = -deltaX;
+ deltaY = -deltaY;
+ break;
+
+ case DISPLAY_ORIENTATION_270:
+ temp = deltaX;
+ deltaX = -deltaY;
+ deltaY = temp;
+ break;
+ }
+ }
+
+ if (mPointerController != NULL) {
+ mPointerController->move(deltaX, deltaY);
+ if (downChanged) {
+ mPointerController->setButtonState(mLocked.down ? POINTER_BUTTON_1 : 0);
+ }
+ mPointerController->getPosition(&pointerCoords.x, &pointerCoords.y);
+ } else {
+ pointerCoords.x = deltaX;
+ pointerCoords.y = deltaY;
+ }
+
+ pointerCoords.pressure = mLocked.down ? 1.0f : 0.0f;
+ pointerCoords.size = 0;
+ pointerCoords.touchMajor = 0;
+ pointerCoords.touchMinor = 0;
+ pointerCoords.toolMajor = 0;
+ pointerCoords.toolMinor = 0;
+ pointerCoords.orientation = 0;
+ } // release lock
+
+ int32_t metaState = mContext->getGlobalMetaState();
+ int32_t pointerId = 0;
+ getDispatcher()->notifyMotion(when, getDeviceId(), mSources, 0,
+ motionEventAction, 0, metaState, AMOTION_EVENT_EDGE_FLAG_NONE,
+ 1, &pointerId, &pointerCoords, mXPrecision, mYPrecision, downTime);
+
+ mAccumulator.clear();
+}
+
+int32_t CursorInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) {
+ if (scanCode >= BTN_MOUSE && scanCode < BTN_JOYSTICK) {
+ return getEventHub()->getScanCodeState(getDeviceId(), scanCode);
+ } else {
+ return AKEY_STATE_UNKNOWN;
+ }
+}
+
+
+// --- TouchInputMapper ---
+
+TouchInputMapper::TouchInputMapper(InputDevice* device) :
+ InputMapper(device) {
+ mLocked.surfaceOrientation = -1;
+ mLocked.surfaceWidth = -1;
+ mLocked.surfaceHeight = -1;
+
+ initializeLocked();
+}
+
+TouchInputMapper::~TouchInputMapper() {
+}
+
+uint32_t TouchInputMapper::getSources() {
+ return mSources;
+}
+
+void TouchInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
+ InputMapper::populateDeviceInfo(info);
+
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ // Ensure surface information is up to date so that orientation changes are
+ // noticed immediately.
+ configureSurfaceLocked();
+
+ info->addMotionRange(AINPUT_MOTION_RANGE_X, mLocked.orientedRanges.x);
+ info->addMotionRange(AINPUT_MOTION_RANGE_Y, mLocked.orientedRanges.y);
+
+ if (mLocked.orientedRanges.havePressure) {
+ info->addMotionRange(AINPUT_MOTION_RANGE_PRESSURE,
+ mLocked.orientedRanges.pressure);
+ }
+
+ if (mLocked.orientedRanges.haveSize) {
+ info->addMotionRange(AINPUT_MOTION_RANGE_SIZE,
+ mLocked.orientedRanges.size);
+ }
+
+ if (mLocked.orientedRanges.haveTouchSize) {
+ info->addMotionRange(AINPUT_MOTION_RANGE_TOUCH_MAJOR,
+ mLocked.orientedRanges.touchMajor);
+ info->addMotionRange(AINPUT_MOTION_RANGE_TOUCH_MINOR,
+ mLocked.orientedRanges.touchMinor);
+ }
+
+ if (mLocked.orientedRanges.haveToolSize) {
+ info->addMotionRange(AINPUT_MOTION_RANGE_TOOL_MAJOR,
+ mLocked.orientedRanges.toolMajor);
+ info->addMotionRange(AINPUT_MOTION_RANGE_TOOL_MINOR,
+ mLocked.orientedRanges.toolMinor);
+ }
+
+ if (mLocked.orientedRanges.haveOrientation) {
+ info->addMotionRange(AINPUT_MOTION_RANGE_ORIENTATION,
+ mLocked.orientedRanges.orientation);
+ }
+ } // release lock
+}
+
+void TouchInputMapper::dump(String8& dump) {
+ { // acquire lock
+ AutoMutex _l(mLock);
+ dump.append(INDENT2 "Touch Input Mapper:\n");
+ dumpParameters(dump);
+ dumpVirtualKeysLocked(dump);
+ dumpRawAxes(dump);
+ dumpCalibration(dump);
+ dumpSurfaceLocked(dump);
+ dump.appendFormat(INDENT3 "Translation and Scaling Factors:\n");
+ dump.appendFormat(INDENT4 "XOrigin: %d\n", mLocked.xOrigin);
+ dump.appendFormat(INDENT4 "YOrigin: %d\n", mLocked.yOrigin);
+ dump.appendFormat(INDENT4 "XScale: %0.3f\n", mLocked.xScale);
+ dump.appendFormat(INDENT4 "YScale: %0.3f\n", mLocked.yScale);
+ dump.appendFormat(INDENT4 "XPrecision: %0.3f\n", mLocked.xPrecision);
+ dump.appendFormat(INDENT4 "YPrecision: %0.3f\n", mLocked.yPrecision);
+ dump.appendFormat(INDENT4 "GeometricScale: %0.3f\n", mLocked.geometricScale);
+ dump.appendFormat(INDENT4 "ToolSizeLinearScale: %0.3f\n", mLocked.toolSizeLinearScale);
+ dump.appendFormat(INDENT4 "ToolSizeLinearBias: %0.3f\n", mLocked.toolSizeLinearBias);
+ dump.appendFormat(INDENT4 "ToolSizeAreaScale: %0.3f\n", mLocked.toolSizeAreaScale);
+ dump.appendFormat(INDENT4 "ToolSizeAreaBias: %0.3f\n", mLocked.toolSizeAreaBias);
+ dump.appendFormat(INDENT4 "PressureScale: %0.3f\n", mLocked.pressureScale);
+ dump.appendFormat(INDENT4 "SizeScale: %0.3f\n", mLocked.sizeScale);
+ dump.appendFormat(INDENT4 "OrientationSCale: %0.3f\n", mLocked.orientationScale);
+ } // release lock
+}
+
+void TouchInputMapper::initializeLocked() {
+ mCurrentTouch.clear();
+ mLastTouch.clear();
+ mDownTime = 0;
+
+ for (uint32_t i = 0; i < MAX_POINTERS; i++) {
+ mAveragingTouchFilter.historyStart[i] = 0;
+ mAveragingTouchFilter.historyEnd[i] = 0;
+ }
+
+ mJumpyTouchFilter.jumpyPointsDropped = 0;
+
+ mLocked.currentVirtualKey.down = false;
+
+ mLocked.orientedRanges.havePressure = false;
+ mLocked.orientedRanges.haveSize = false;
+ mLocked.orientedRanges.haveTouchSize = false;
+ mLocked.orientedRanges.haveToolSize = false;
+ mLocked.orientedRanges.haveOrientation = false;
+}
+
+void TouchInputMapper::configure() {
+ InputMapper::configure();
+
+ // Configure basic parameters.
+ configureParameters();
+
+ // Configure sources.
+ switch (mParameters.deviceType) {
+ case Parameters::DEVICE_TYPE_TOUCH_SCREEN:
+ mSources = AINPUT_SOURCE_TOUCHSCREEN;
+ break;
+ case Parameters::DEVICE_TYPE_TOUCH_PAD:
+ mSources = AINPUT_SOURCE_TOUCHPAD;
+ break;
+ default:
+ assert(false);
+ }
+
+ // Configure absolute axis information.
+ configureRawAxes();
+
+ // Prepare input device calibration.
+ parseCalibration();
+ resolveCalibration();
+
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ // Configure surface dimensions and orientation.
+ configureSurfaceLocked();
+ } // release lock
+}
+
+void TouchInputMapper::configureParameters() {
+ mParameters.useBadTouchFilter = getPolicy()->filterTouchEvents();
+ mParameters.useAveragingTouchFilter = getPolicy()->filterTouchEvents();
+ mParameters.useJumpyTouchFilter = getPolicy()->filterJumpyTouchEvents();
+
+ String8 deviceTypeString;
+ mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_SCREEN;
+ if (getDevice()->getConfiguration().tryGetProperty(String8("touch.deviceType"),
+ deviceTypeString)) {
+ if (deviceTypeString == "touchPad") {
+ mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_PAD;
+ } else if (deviceTypeString != "touchScreen") {
+ LOGW("Invalid value for touch.deviceType: '%s'", deviceTypeString.string());
+ }
+ }
+ bool isTouchScreen = mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN;
+
+ mParameters.orientationAware = isTouchScreen;
+ getDevice()->getConfiguration().tryGetProperty(String8("touch.orientationAware"),
+ mParameters.orientationAware);
+
+ mParameters.associatedDisplayId = mParameters.orientationAware || isTouchScreen ? 0 : -1;
+}
+
+void TouchInputMapper::dumpParameters(String8& dump) {
+ dump.append(INDENT3 "Parameters:\n");
+
+ switch (mParameters.deviceType) {
+ case Parameters::DEVICE_TYPE_TOUCH_SCREEN:
+ dump.append(INDENT4 "DeviceType: touchScreen\n");
+ break;
+ case Parameters::DEVICE_TYPE_TOUCH_PAD:
+ dump.append(INDENT4 "DeviceType: touchPad\n");
+ break;
+ default:
+ assert(false);
+ }
+
+ dump.appendFormat(INDENT4 "AssociatedDisplayId: %d\n",
+ mParameters.associatedDisplayId);
+ dump.appendFormat(INDENT4 "OrientationAware: %s\n",
+ toString(mParameters.orientationAware));
+
+ dump.appendFormat(INDENT4 "UseBadTouchFilter: %s\n",
+ toString(mParameters.useBadTouchFilter));
+ dump.appendFormat(INDENT4 "UseAveragingTouchFilter: %s\n",
+ toString(mParameters.useAveragingTouchFilter));
+ dump.appendFormat(INDENT4 "UseJumpyTouchFilter: %s\n",
+ toString(mParameters.useJumpyTouchFilter));
+}
+
+void TouchInputMapper::configureRawAxes() {
+ mRawAxes.x.clear();
+ mRawAxes.y.clear();
+ mRawAxes.pressure.clear();
+ mRawAxes.touchMajor.clear();
+ mRawAxes.touchMinor.clear();
+ mRawAxes.toolMajor.clear();
+ mRawAxes.toolMinor.clear();
+ mRawAxes.orientation.clear();
+}
+
+static void dumpAxisInfo(String8& dump, RawAbsoluteAxisInfo axis, const char* name) {
+ if (axis.valid) {
+ dump.appendFormat(INDENT4 "%s: min=%d, max=%d, flat=%d, fuzz=%d\n",
+ name, axis.minValue, axis.maxValue, axis.flat, axis.fuzz);
+ } else {
+ dump.appendFormat(INDENT4 "%s: unknown range\n", name);
+ }
+}
+
+void TouchInputMapper::dumpRawAxes(String8& dump) {
+ dump.append(INDENT3 "Raw Axes:\n");
+ dumpAxisInfo(dump, mRawAxes.x, "X");
+ dumpAxisInfo(dump, mRawAxes.y, "Y");
+ dumpAxisInfo(dump, mRawAxes.pressure, "Pressure");
+ dumpAxisInfo(dump, mRawAxes.touchMajor, "TouchMajor");
+ dumpAxisInfo(dump, mRawAxes.touchMinor, "TouchMinor");
+ dumpAxisInfo(dump, mRawAxes.toolMajor, "ToolMajor");
+ dumpAxisInfo(dump, mRawAxes.toolMinor, "ToolMinor");
+ dumpAxisInfo(dump, mRawAxes.orientation, "Orientation");
+}
+
+bool TouchInputMapper::configureSurfaceLocked() {
+ // Update orientation and dimensions if needed.
+ int32_t orientation = DISPLAY_ORIENTATION_0;
+ int32_t width = mRawAxes.x.getRange();
+ int32_t height = mRawAxes.y.getRange();
+
+ if (mParameters.associatedDisplayId >= 0) {
+ bool wantSize = mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN;
+ bool wantOrientation = mParameters.orientationAware;
+
+ // Note: getDisplayInfo is non-reentrant so we can continue holding the lock.
+ if (! getPolicy()->getDisplayInfo(mParameters.associatedDisplayId,
+ wantSize ? &width : NULL, wantSize ? &height : NULL,
+ wantOrientation ? &orientation : NULL)) {
+ return false;
+ }
+ }
+
+ bool orientationChanged = mLocked.surfaceOrientation != orientation;
+ if (orientationChanged) {
+ mLocked.surfaceOrientation = orientation;
+ }
+
+ bool sizeChanged = mLocked.surfaceWidth != width || mLocked.surfaceHeight != height;
+ if (sizeChanged) {
+ LOGI("Device reconfigured: id=%d, name='%s', display size is now %dx%d",
+ getDeviceId(), getDeviceName().string(), width, height);
+
+ mLocked.surfaceWidth = width;
+ mLocked.surfaceHeight = height;
+
+ // Configure X and Y factors.
+ if (mRawAxes.x.valid && mRawAxes.y.valid) {
+ mLocked.xOrigin = mCalibration.haveXOrigin
+ ? mCalibration.xOrigin
+ : mRawAxes.x.minValue;
+ mLocked.yOrigin = mCalibration.haveYOrigin
+ ? mCalibration.yOrigin
+ : mRawAxes.y.minValue;
+ mLocked.xScale = mCalibration.haveXScale
+ ? mCalibration.xScale
+ : float(width) / mRawAxes.x.getRange();
+ mLocked.yScale = mCalibration.haveYScale
+ ? mCalibration.yScale
+ : float(height) / mRawAxes.y.getRange();
+ mLocked.xPrecision = 1.0f / mLocked.xScale;
+ mLocked.yPrecision = 1.0f / mLocked.yScale;
+
+ configureVirtualKeysLocked();
+ } else {
+ LOGW(INDENT "Touch device did not report support for X or Y axis!");
+ mLocked.xOrigin = 0;
+ mLocked.yOrigin = 0;
+ mLocked.xScale = 1.0f;
+ mLocked.yScale = 1.0f;
+ mLocked.xPrecision = 1.0f;
+ mLocked.yPrecision = 1.0f;
+ }
+
+ // Scale factor for terms that are not oriented in a particular axis.
+ // If the pixels are square then xScale == yScale otherwise we fake it
+ // by choosing an average.
+ mLocked.geometricScale = avg(mLocked.xScale, mLocked.yScale);
+
+ // Size of diagonal axis.
+ float diagonalSize = pythag(width, height);
+
+ // TouchMajor and TouchMinor factors.
+ if (mCalibration.touchSizeCalibration != Calibration::TOUCH_SIZE_CALIBRATION_NONE) {
+ mLocked.orientedRanges.haveTouchSize = true;
+ mLocked.orientedRanges.touchMajor.min = 0;
+ mLocked.orientedRanges.touchMajor.max = diagonalSize;
+ mLocked.orientedRanges.touchMajor.flat = 0;
+ mLocked.orientedRanges.touchMajor.fuzz = 0;
+ mLocked.orientedRanges.touchMinor = mLocked.orientedRanges.touchMajor;
+ }
+
+ // ToolMajor and ToolMinor factors.
+ mLocked.toolSizeLinearScale = 0;
+ mLocked.toolSizeLinearBias = 0;
+ mLocked.toolSizeAreaScale = 0;
+ mLocked.toolSizeAreaBias = 0;
+ if (mCalibration.toolSizeCalibration != Calibration::TOOL_SIZE_CALIBRATION_NONE) {
+ if (mCalibration.toolSizeCalibration == Calibration::TOOL_SIZE_CALIBRATION_LINEAR) {
+ if (mCalibration.haveToolSizeLinearScale) {
+ mLocked.toolSizeLinearScale = mCalibration.toolSizeLinearScale;
+ } else if (mRawAxes.toolMajor.valid && mRawAxes.toolMajor.maxValue != 0) {
+ mLocked.toolSizeLinearScale = float(min(width, height))
+ / mRawAxes.toolMajor.maxValue;
+ }
+
+ if (mCalibration.haveToolSizeLinearBias) {
+ mLocked.toolSizeLinearBias = mCalibration.toolSizeLinearBias;
+ }
+ } else if (mCalibration.toolSizeCalibration ==
+ Calibration::TOOL_SIZE_CALIBRATION_AREA) {
+ if (mCalibration.haveToolSizeLinearScale) {
+ mLocked.toolSizeLinearScale = mCalibration.toolSizeLinearScale;
+ } else {
+ mLocked.toolSizeLinearScale = min(width, height);
+ }
+
+ if (mCalibration.haveToolSizeLinearBias) {
+ mLocked.toolSizeLinearBias = mCalibration.toolSizeLinearBias;
+ }
+
+ if (mCalibration.haveToolSizeAreaScale) {
+ mLocked.toolSizeAreaScale = mCalibration.toolSizeAreaScale;
+ } else if (mRawAxes.toolMajor.valid && mRawAxes.toolMajor.maxValue != 0) {
+ mLocked.toolSizeAreaScale = 1.0f / mRawAxes.toolMajor.maxValue;
+ }
+
+ if (mCalibration.haveToolSizeAreaBias) {
+ mLocked.toolSizeAreaBias = mCalibration.toolSizeAreaBias;
+ }
+ }
+
+ mLocked.orientedRanges.haveToolSize = true;
+ mLocked.orientedRanges.toolMajor.min = 0;
+ mLocked.orientedRanges.toolMajor.max = diagonalSize;
+ mLocked.orientedRanges.toolMajor.flat = 0;
+ mLocked.orientedRanges.toolMajor.fuzz = 0;
+ mLocked.orientedRanges.toolMinor = mLocked.orientedRanges.toolMajor;
+ }
+
+ // Pressure factors.
+ mLocked.pressureScale = 0;
+ if (mCalibration.pressureCalibration != Calibration::PRESSURE_CALIBRATION_NONE) {
+ RawAbsoluteAxisInfo rawPressureAxis;
+ switch (mCalibration.pressureSource) {
+ case Calibration::PRESSURE_SOURCE_PRESSURE:
+ rawPressureAxis = mRawAxes.pressure;
+ break;
+ case Calibration::PRESSURE_SOURCE_TOUCH:
+ rawPressureAxis = mRawAxes.touchMajor;
+ break;
+ default:
+ rawPressureAxis.clear();
+ }
+
+ if (mCalibration.pressureCalibration == Calibration::PRESSURE_CALIBRATION_PHYSICAL
+ || mCalibration.pressureCalibration
+ == Calibration::PRESSURE_CALIBRATION_AMPLITUDE) {
+ if (mCalibration.havePressureScale) {
+ mLocked.pressureScale = mCalibration.pressureScale;
+ } else if (rawPressureAxis.valid && rawPressureAxis.maxValue != 0) {
+ mLocked.pressureScale = 1.0f / rawPressureAxis.maxValue;
+ }
+ }
+
+ mLocked.orientedRanges.havePressure = true;
+ mLocked.orientedRanges.pressure.min = 0;
+ mLocked.orientedRanges.pressure.max = 1.0;
+ mLocked.orientedRanges.pressure.flat = 0;
+ mLocked.orientedRanges.pressure.fuzz = 0;
+ }
+
+ // Size factors.
+ mLocked.sizeScale = 0;
+ if (mCalibration.sizeCalibration != Calibration::SIZE_CALIBRATION_NONE) {
+ if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_NORMALIZED) {
+ if (mRawAxes.toolMajor.valid && mRawAxes.toolMajor.maxValue != 0) {
+ mLocked.sizeScale = 1.0f / mRawAxes.toolMajor.maxValue;
+ }
+ }
+
+ mLocked.orientedRanges.haveSize = true;
+ mLocked.orientedRanges.size.min = 0;
+ mLocked.orientedRanges.size.max = 1.0;
+ mLocked.orientedRanges.size.flat = 0;
+ mLocked.orientedRanges.size.fuzz = 0;
+ }
+
+ // Orientation
+ mLocked.orientationScale = 0;
+ if (mCalibration.orientationCalibration != Calibration::ORIENTATION_CALIBRATION_NONE) {
+ if (mCalibration.orientationCalibration
+ == Calibration::ORIENTATION_CALIBRATION_INTERPOLATED) {
+ if (mRawAxes.orientation.valid && mRawAxes.orientation.maxValue != 0) {
+ mLocked.orientationScale = float(M_PI_2) / mRawAxes.orientation.maxValue;
+ }
+ }
+
+ mLocked.orientedRanges.orientation.min = - M_PI_2;
+ mLocked.orientedRanges.orientation.max = M_PI_2;
+ mLocked.orientedRanges.orientation.flat = 0;
+ mLocked.orientedRanges.orientation.fuzz = 0;
+ }
+ }
+
+ if (orientationChanged || sizeChanged) {
+ // Compute oriented surface dimensions, precision, and scales.
+ float orientedXScale, orientedYScale;
+ switch (mLocked.surfaceOrientation) {
+ case DISPLAY_ORIENTATION_90:
+ case DISPLAY_ORIENTATION_270:
+ mLocked.orientedSurfaceWidth = mLocked.surfaceHeight;
+ mLocked.orientedSurfaceHeight = mLocked.surfaceWidth;
+ mLocked.orientedXPrecision = mLocked.yPrecision;
+ mLocked.orientedYPrecision = mLocked.xPrecision;
+ orientedXScale = mLocked.yScale;
+ orientedYScale = mLocked.xScale;
+ break;
+ default:
+ mLocked.orientedSurfaceWidth = mLocked.surfaceWidth;
+ mLocked.orientedSurfaceHeight = mLocked.surfaceHeight;
+ mLocked.orientedXPrecision = mLocked.xPrecision;
+ mLocked.orientedYPrecision = mLocked.yPrecision;
+ orientedXScale = mLocked.xScale;
+ orientedYScale = mLocked.yScale;
+ break;
+ }
+
+ // Configure position ranges.
+ mLocked.orientedRanges.x.min = 0;
+ mLocked.orientedRanges.x.max = mLocked.orientedSurfaceWidth;
+ mLocked.orientedRanges.x.flat = 0;
+ mLocked.orientedRanges.x.fuzz = orientedXScale;
+
+ mLocked.orientedRanges.y.min = 0;
+ mLocked.orientedRanges.y.max = mLocked.orientedSurfaceHeight;
+ mLocked.orientedRanges.y.flat = 0;
+ mLocked.orientedRanges.y.fuzz = orientedYScale;
+ }
+
+ return true;
+}
+
+void TouchInputMapper::dumpSurfaceLocked(String8& dump) {
+ dump.appendFormat(INDENT3 "SurfaceWidth: %dpx\n", mLocked.surfaceWidth);
+ dump.appendFormat(INDENT3 "SurfaceHeight: %dpx\n", mLocked.surfaceHeight);
+ dump.appendFormat(INDENT3 "SurfaceOrientation: %d\n", mLocked.surfaceOrientation);
+}
+
+void TouchInputMapper::configureVirtualKeysLocked() {
+ assert(mRawAxes.x.valid && mRawAxes.y.valid);
+
+ Vector<VirtualKeyDefinition> virtualKeyDefinitions;
+ getEventHub()->getVirtualKeyDefinitions(getDeviceId(), virtualKeyDefinitions);
+
+ mLocked.virtualKeys.clear();
+
+ if (virtualKeyDefinitions.size() == 0) {
+ return;
+ }
+
+ mLocked.virtualKeys.setCapacity(virtualKeyDefinitions.size());
+
+ int32_t touchScreenLeft = mRawAxes.x.minValue;
+ int32_t touchScreenTop = mRawAxes.y.minValue;
+ int32_t touchScreenWidth = mRawAxes.x.getRange();
+ int32_t touchScreenHeight = mRawAxes.y.getRange();
+
+ for (size_t i = 0; i < virtualKeyDefinitions.size(); i++) {
+ const VirtualKeyDefinition& virtualKeyDefinition =
+ virtualKeyDefinitions[i];
+
+ mLocked.virtualKeys.add();
+ VirtualKey& virtualKey = mLocked.virtualKeys.editTop();
+
+ virtualKey.scanCode = virtualKeyDefinition.scanCode;
+ int32_t keyCode;
+ uint32_t flags;
+ if (getEventHub()->scancodeToKeycode(getDeviceId(), virtualKey.scanCode,
+ & keyCode, & flags)) {
+ LOGW(INDENT "VirtualKey %d: could not obtain key code, ignoring",
+ virtualKey.scanCode);
+ mLocked.virtualKeys.pop(); // drop the key
+ continue;
+ }
+
+ virtualKey.keyCode = keyCode;
+ virtualKey.flags = flags;
+
+ // convert the key definition's display coordinates into touch coordinates for a hit box
+ int32_t halfWidth = virtualKeyDefinition.width / 2;
+ int32_t halfHeight = virtualKeyDefinition.height / 2;
+
+ virtualKey.hitLeft = (virtualKeyDefinition.centerX - halfWidth)
+ * touchScreenWidth / mLocked.surfaceWidth + touchScreenLeft;
+ virtualKey.hitRight= (virtualKeyDefinition.centerX + halfWidth)
+ * touchScreenWidth / mLocked.surfaceWidth + touchScreenLeft;
+ virtualKey.hitTop = (virtualKeyDefinition.centerY - halfHeight)
+ * touchScreenHeight / mLocked.surfaceHeight + touchScreenTop;
+ virtualKey.hitBottom = (virtualKeyDefinition.centerY + halfHeight)
+ * touchScreenHeight / mLocked.surfaceHeight + touchScreenTop;
+
+ }
+}
+
+void TouchInputMapper::dumpVirtualKeysLocked(String8& dump) {
+ if (!mLocked.virtualKeys.isEmpty()) {
+ dump.append(INDENT3 "Virtual Keys:\n");
+
+ for (size_t i = 0; i < mLocked.virtualKeys.size(); i++) {
+ const VirtualKey& virtualKey = mLocked.virtualKeys.itemAt(i);
+ dump.appendFormat(INDENT4 "%d: scanCode=%d, keyCode=%d, "
+ "hitLeft=%d, hitRight=%d, hitTop=%d, hitBottom=%d\n",
+ i, virtualKey.scanCode, virtualKey.keyCode,
+ virtualKey.hitLeft, virtualKey.hitRight,
+ virtualKey.hitTop, virtualKey.hitBottom);
+ }
+ }
+}
+
+void TouchInputMapper::parseCalibration() {
+ const PropertyMap& in = getDevice()->getConfiguration();
+ Calibration& out = mCalibration;
+
+ // Position
+ out.haveXOrigin = in.tryGetProperty(String8("touch.position.xOrigin"), out.xOrigin);
+ out.haveYOrigin = in.tryGetProperty(String8("touch.position.yOrigin"), out.yOrigin);
+ out.haveXScale = in.tryGetProperty(String8("touch.position.xScale"), out.xScale);
+ out.haveYScale = in.tryGetProperty(String8("touch.position.yScale"), out.yScale);
+
+ // Touch Size
+ out.touchSizeCalibration = Calibration::TOUCH_SIZE_CALIBRATION_DEFAULT;
+ String8 touchSizeCalibrationString;
+ if (in.tryGetProperty(String8("touch.touchSize.calibration"), touchSizeCalibrationString)) {
+ if (touchSizeCalibrationString == "none") {
+ out.touchSizeCalibration = Calibration::TOUCH_SIZE_CALIBRATION_NONE;
+ } else if (touchSizeCalibrationString == "geometric") {
+ out.touchSizeCalibration = Calibration::TOUCH_SIZE_CALIBRATION_GEOMETRIC;
+ } else if (touchSizeCalibrationString == "pressure") {
+ out.touchSizeCalibration = Calibration::TOUCH_SIZE_CALIBRATION_PRESSURE;
+ } else if (touchSizeCalibrationString != "default") {
+ LOGW("Invalid value for touch.touchSize.calibration: '%s'",
+ touchSizeCalibrationString.string());
+ }
+ }
+
+ // Tool Size
+ out.toolSizeCalibration = Calibration::TOOL_SIZE_CALIBRATION_DEFAULT;
+ String8 toolSizeCalibrationString;
+ if (in.tryGetProperty(String8("touch.toolSize.calibration"), toolSizeCalibrationString)) {
+ if (toolSizeCalibrationString == "none") {
+ out.toolSizeCalibration = Calibration::TOOL_SIZE_CALIBRATION_NONE;
+ } else if (toolSizeCalibrationString == "geometric") {
+ out.toolSizeCalibration = Calibration::TOOL_SIZE_CALIBRATION_GEOMETRIC;
+ } else if (toolSizeCalibrationString == "linear") {
+ out.toolSizeCalibration = Calibration::TOOL_SIZE_CALIBRATION_LINEAR;
+ } else if (toolSizeCalibrationString == "area") {
+ out.toolSizeCalibration = Calibration::TOOL_SIZE_CALIBRATION_AREA;
+ } else if (toolSizeCalibrationString != "default") {
+ LOGW("Invalid value for touch.toolSize.calibration: '%s'",
+ toolSizeCalibrationString.string());
+ }
+ }
+
+ out.haveToolSizeLinearScale = in.tryGetProperty(String8("touch.toolSize.linearScale"),
+ out.toolSizeLinearScale);
+ out.haveToolSizeLinearBias = in.tryGetProperty(String8("touch.toolSize.linearBias"),
+ out.toolSizeLinearBias);
+ out.haveToolSizeAreaScale = in.tryGetProperty(String8("touch.toolSize.areaScale"),
+ out.toolSizeAreaScale);
+ out.haveToolSizeAreaBias = in.tryGetProperty(String8("touch.toolSize.areaBias"),
+ out.toolSizeAreaBias);
+ out.haveToolSizeIsSummed = in.tryGetProperty(String8("touch.toolSize.isSummed"),
+ out.toolSizeIsSummed);
+
+ // Pressure
+ out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_DEFAULT;
+ String8 pressureCalibrationString;
+ if (in.tryGetProperty(String8("touch.pressure.calibration"), pressureCalibrationString)) {
+ if (pressureCalibrationString == "none") {
+ out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_NONE;
+ } else if (pressureCalibrationString == "physical") {
+ out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_PHYSICAL;
+ } else if (pressureCalibrationString == "amplitude") {
+ out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_AMPLITUDE;
+ } else if (pressureCalibrationString != "default") {
+ LOGW("Invalid value for touch.pressure.calibration: '%s'",
+ pressureCalibrationString.string());
+ }
+ }
+
+ out.pressureSource = Calibration::PRESSURE_SOURCE_DEFAULT;
+ String8 pressureSourceString;
+ if (in.tryGetProperty(String8("touch.pressure.source"), pressureSourceString)) {
+ if (pressureSourceString == "pressure") {
+ out.pressureSource = Calibration::PRESSURE_SOURCE_PRESSURE;
+ } else if (pressureSourceString == "touch") {
+ out.pressureSource = Calibration::PRESSURE_SOURCE_TOUCH;
+ } else if (pressureSourceString != "default") {
+ LOGW("Invalid value for touch.pressure.source: '%s'",
+ pressureSourceString.string());
+ }
+ }
+
+ out.havePressureScale = in.tryGetProperty(String8("touch.pressure.scale"),
+ out.pressureScale);
+
+ // Size
+ out.sizeCalibration = Calibration::SIZE_CALIBRATION_DEFAULT;
+ String8 sizeCalibrationString;
+ if (in.tryGetProperty(String8("touch.size.calibration"), sizeCalibrationString)) {
+ if (sizeCalibrationString == "none") {
+ out.sizeCalibration = Calibration::SIZE_CALIBRATION_NONE;
+ } else if (sizeCalibrationString == "normalized") {
+ out.sizeCalibration = Calibration::SIZE_CALIBRATION_NORMALIZED;
+ } else if (sizeCalibrationString != "default") {
+ LOGW("Invalid value for touch.size.calibration: '%s'",
+ sizeCalibrationString.string());
+ }
+ }
+
+ // Orientation
+ out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_DEFAULT;
+ String8 orientationCalibrationString;
+ if (in.tryGetProperty(String8("touch.orientation.calibration"), orientationCalibrationString)) {
+ if (orientationCalibrationString == "none") {
+ out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE;
+ } else if (orientationCalibrationString == "interpolated") {
+ out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED;
+ } else if (orientationCalibrationString != "default") {
+ LOGW("Invalid value for touch.orientation.calibration: '%s'",
+ orientationCalibrationString.string());
+ }
+ }
+}
+
+void TouchInputMapper::resolveCalibration() {
+ // Pressure
+ switch (mCalibration.pressureSource) {
+ case Calibration::PRESSURE_SOURCE_DEFAULT:
+ if (mRawAxes.pressure.valid) {
+ mCalibration.pressureSource = Calibration::PRESSURE_SOURCE_PRESSURE;
+ } else if (mRawAxes.touchMajor.valid) {
+ mCalibration.pressureSource = Calibration::PRESSURE_SOURCE_TOUCH;
+ }
+ break;
+
+ case Calibration::PRESSURE_SOURCE_PRESSURE:
+ if (! mRawAxes.pressure.valid) {
+ LOGW("Calibration property touch.pressure.source is 'pressure' but "
+ "the pressure axis is not available.");
+ }
+ break;
+
+ case Calibration::PRESSURE_SOURCE_TOUCH:
+ if (! mRawAxes.touchMajor.valid) {
+ LOGW("Calibration property touch.pressure.source is 'touch' but "
+ "the touchMajor axis is not available.");
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ switch (mCalibration.pressureCalibration) {
+ case Calibration::PRESSURE_CALIBRATION_DEFAULT:
+ if (mCalibration.pressureSource != Calibration::PRESSURE_SOURCE_DEFAULT) {
+ mCalibration.pressureCalibration = Calibration::PRESSURE_CALIBRATION_AMPLITUDE;
+ } else {
+ mCalibration.pressureCalibration = Calibration::PRESSURE_CALIBRATION_NONE;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ // Tool Size
+ switch (mCalibration.toolSizeCalibration) {
+ case Calibration::TOOL_SIZE_CALIBRATION_DEFAULT:
+ if (mRawAxes.toolMajor.valid) {
+ mCalibration.toolSizeCalibration = Calibration::TOOL_SIZE_CALIBRATION_LINEAR;
+ } else {
+ mCalibration.toolSizeCalibration = Calibration::TOOL_SIZE_CALIBRATION_NONE;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ // Touch Size
+ switch (mCalibration.touchSizeCalibration) {
+ case Calibration::TOUCH_SIZE_CALIBRATION_DEFAULT:
+ if (mCalibration.pressureCalibration != Calibration::PRESSURE_CALIBRATION_NONE
+ && mCalibration.toolSizeCalibration != Calibration::TOOL_SIZE_CALIBRATION_NONE) {
+ mCalibration.touchSizeCalibration = Calibration::TOUCH_SIZE_CALIBRATION_PRESSURE;
+ } else {
+ mCalibration.touchSizeCalibration = Calibration::TOUCH_SIZE_CALIBRATION_NONE;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ // Size
+ switch (mCalibration.sizeCalibration) {
+ case Calibration::SIZE_CALIBRATION_DEFAULT:
+ if (mRawAxes.toolMajor.valid) {
+ mCalibration.sizeCalibration = Calibration::SIZE_CALIBRATION_NORMALIZED;
+ } else {
+ mCalibration.sizeCalibration = Calibration::SIZE_CALIBRATION_NONE;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ // Orientation
+ switch (mCalibration.orientationCalibration) {
+ case Calibration::ORIENTATION_CALIBRATION_DEFAULT:
+ if (mRawAxes.orientation.valid) {
+ mCalibration.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED;
+ } else {
+ mCalibration.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE;
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+void TouchInputMapper::dumpCalibration(String8& dump) {
+ dump.append(INDENT3 "Calibration:\n");
+
+ // Position
+ if (mCalibration.haveXOrigin) {
+ dump.appendFormat(INDENT4 "touch.position.xOrigin: %d\n", mCalibration.xOrigin);
+ }
+ if (mCalibration.haveYOrigin) {
+ dump.appendFormat(INDENT4 "touch.position.yOrigin: %d\n", mCalibration.yOrigin);
+ }
+ if (mCalibration.haveXScale) {
+ dump.appendFormat(INDENT4 "touch.position.xScale: %0.3f\n", mCalibration.xScale);
+ }
+ if (mCalibration.haveYScale) {
+ dump.appendFormat(INDENT4 "touch.position.yScale: %0.3f\n", mCalibration.yScale);
+ }
+
+ // Touch Size
+ switch (mCalibration.touchSizeCalibration) {
+ case Calibration::TOUCH_SIZE_CALIBRATION_NONE:
+ dump.append(INDENT4 "touch.touchSize.calibration: none\n");
+ break;
+ case Calibration::TOUCH_SIZE_CALIBRATION_GEOMETRIC:
+ dump.append(INDENT4 "touch.touchSize.calibration: geometric\n");
+ break;
+ case Calibration::TOUCH_SIZE_CALIBRATION_PRESSURE:
+ dump.append(INDENT4 "touch.touchSize.calibration: pressure\n");
+ break;
+ default:
+ assert(false);
+ }
+
+ // Tool Size
+ switch (mCalibration.toolSizeCalibration) {
+ case Calibration::TOOL_SIZE_CALIBRATION_NONE:
+ dump.append(INDENT4 "touch.toolSize.calibration: none\n");
+ break;
+ case Calibration::TOOL_SIZE_CALIBRATION_GEOMETRIC:
+ dump.append(INDENT4 "touch.toolSize.calibration: geometric\n");
+ break;
+ case Calibration::TOOL_SIZE_CALIBRATION_LINEAR:
+ dump.append(INDENT4 "touch.toolSize.calibration: linear\n");
+ break;
+ case Calibration::TOOL_SIZE_CALIBRATION_AREA:
+ dump.append(INDENT4 "touch.toolSize.calibration: area\n");
+ break;
+ default:
+ assert(false);
+ }
+
+ if (mCalibration.haveToolSizeLinearScale) {
+ dump.appendFormat(INDENT4 "touch.toolSize.linearScale: %0.3f\n",
+ mCalibration.toolSizeLinearScale);
+ }
+
+ if (mCalibration.haveToolSizeLinearBias) {
+ dump.appendFormat(INDENT4 "touch.toolSize.linearBias: %0.3f\n",
+ mCalibration.toolSizeLinearBias);
+ }
+
+ if (mCalibration.haveToolSizeAreaScale) {
+ dump.appendFormat(INDENT4 "touch.toolSize.areaScale: %0.3f\n",
+ mCalibration.toolSizeAreaScale);
+ }
+
+ if (mCalibration.haveToolSizeAreaBias) {
+ dump.appendFormat(INDENT4 "touch.toolSize.areaBias: %0.3f\n",
+ mCalibration.toolSizeAreaBias);
+ }
+
+ if (mCalibration.haveToolSizeIsSummed) {
+ dump.appendFormat(INDENT4 "touch.toolSize.isSummed: %s\n",
+ toString(mCalibration.toolSizeIsSummed));
+ }
+
+ // Pressure
+ switch (mCalibration.pressureCalibration) {
+ case Calibration::PRESSURE_CALIBRATION_NONE:
+ dump.append(INDENT4 "touch.pressure.calibration: none\n");
+ break;
+ case Calibration::PRESSURE_CALIBRATION_PHYSICAL:
+ dump.append(INDENT4 "touch.pressure.calibration: physical\n");
+ break;
+ case Calibration::PRESSURE_CALIBRATION_AMPLITUDE:
+ dump.append(INDENT4 "touch.pressure.calibration: amplitude\n");
+ break;
+ default:
+ assert(false);
+ }
+
+ switch (mCalibration.pressureSource) {
+ case Calibration::PRESSURE_SOURCE_PRESSURE:
+ dump.append(INDENT4 "touch.pressure.source: pressure\n");
+ break;
+ case Calibration::PRESSURE_SOURCE_TOUCH:
+ dump.append(INDENT4 "touch.pressure.source: touch\n");
+ break;
+ case Calibration::PRESSURE_SOURCE_DEFAULT:
+ break;
+ default:
+ assert(false);
+ }
+
+ if (mCalibration.havePressureScale) {
+ dump.appendFormat(INDENT4 "touch.pressure.scale: %0.3f\n",
+ mCalibration.pressureScale);
+ }
+
+ // Size
+ switch (mCalibration.sizeCalibration) {
+ case Calibration::SIZE_CALIBRATION_NONE:
+ dump.append(INDENT4 "touch.size.calibration: none\n");
+ break;
+ case Calibration::SIZE_CALIBRATION_NORMALIZED:
+ dump.append(INDENT4 "touch.size.calibration: normalized\n");
+ break;
+ default:
+ assert(false);
+ }
+
+ // Orientation
+ switch (mCalibration.orientationCalibration) {
+ case Calibration::ORIENTATION_CALIBRATION_NONE:
+ dump.append(INDENT4 "touch.orientation.calibration: none\n");
+ break;
+ case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED:
+ dump.append(INDENT4 "touch.orientation.calibration: interpolated\n");
+ break;
+ default:
+ assert(false);
+ }
+}
+
+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);
+ }
+
+ { // acquire lock
+ AutoMutex _l(mLock);
+ initializeLocked();
+ } // release lock
+
+ InputMapper::reset();
+}
+
+void TouchInputMapper::syncTouch(nsecs_t when, bool havePointerIds) {
+ uint32_t policyFlags = 0;
+
+ // 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 lock
+ AutoMutex _l(mLock);
+
+ // Update surface size and orientation, including virtual key positions.
+ if (! configureSurfaceLocked()) {
+ return DROP_STROKE;
+ }
+
+ // Check for virtual key press.
+ if (mLocked.currentVirtualKey.down) {
+ if (mCurrentTouch.pointerCount == 0) {
+ // Pointer went up while virtual key was down.
+ mLocked.currentVirtualKey.down = false;
+#if DEBUG_VIRTUAL_KEYS
+ LOGD("VirtualKeys: Generating key up: keyCode=%d, scanCode=%d",
+ mLocked.currentVirtualKey.keyCode, mLocked.currentVirtualKey.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 = findVirtualKeyHitLocked(x, y);
+ if (virtualKey && virtualKey->keyCode == mLocked.currentVirtualKey.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.
+ mLocked.currentVirtualKey.down = false;
+#if DEBUG_VIRTUAL_KEYS
+ LOGD("VirtualKeys: Canceling key: keyCode=%d, scanCode=%d",
+ mLocked.currentVirtualKey.keyCode, mLocked.currentVirtualKey.scanCode);
+#endif
+ keyEventAction = AKEY_EVENT_ACTION_UP;
+ keyEventFlags = AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY
+ | AKEY_EVENT_FLAG_CANCELED;
+
+ // Check whether the pointer moved inside the display area where we should
+ // start a new stroke.
+ int32_t x = mCurrentTouch.pointers[0].x;
+ int32_t y = mCurrentTouch.pointers[0].y;
+ if (isPointInsideSurfaceLocked(x, y)) {
+ mLastTouch.clear();
+ touchResult = DISPATCH_TOUCH;
+ } else {
+ touchResult = DROP_STROKE;
+ }
+ } 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 (! isPointInsideSurfaceLocked(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 = findVirtualKeyHitLocked(x, y);
+ if (virtualKey) {
+ mLocked.currentVirtualKey.down = true;
+ mLocked.currentVirtualKey.downTime = when;
+ mLocked.currentVirtualKey.keyCode = virtualKey->keyCode;
+ mLocked.currentVirtualKey.scanCode = virtualKey->scanCode;
+#if DEBUG_VIRTUAL_KEYS
+ LOGD("VirtualKeys: Generating key down: keyCode=%d, scanCode=%d",
+ mLocked.currentVirtualKey.keyCode,
+ mLocked.currentVirtualKey.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 = mLocked.currentVirtualKey.keyCode;
+ scanCode = mLocked.currentVirtualKey.scanCode;
+ downTime = mLocked.currentVirtualKey.downTime;
+ } // release lock
+
+ // Dispatch virtual key.
+ int32_t metaState = mContext->getGlobalMetaState();
+ policyFlags |= POLICY_FLAG_VIRTUAL;
+ 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, currentPointerCount, motionEventAction);
+ } else {
+ // There may be pointers going up and pointers going down and pointers moving
+ // all at the same time.
+ BitSet32 upIdBits(lastIdBits.value & ~ currentIdBits.value);
+ BitSet32 downIdBits(currentIdBits.value & ~ lastIdBits.value);
+ BitSet32 activeIdBits(lastIdBits.value);
+ uint32_t pointerCount = lastPointerCount;
+
+ // Produce an intermediate representation of the touch data that consists of the
+ // old location of pointers that have just gone up and the new location of pointers that
+ // have just moved but omits the location of pointers that have just gone down.
+ TouchData interimTouch;
+ interimTouch.copyFrom(mLastTouch);
+
+ BitSet32 moveIdBits(lastIdBits.value & currentIdBits.value);
+ bool moveNeeded = false;
+ while (!moveIdBits.isEmpty()) {
+ uint32_t moveId = moveIdBits.firstMarkedBit();
+ moveIdBits.clearBit(moveId);
+
+ int32_t oldIndex = mLastTouch.idToIndex[moveId];
+ int32_t newIndex = mCurrentTouch.idToIndex[moveId];
+ if (mLastTouch.pointers[oldIndex] != mCurrentTouch.pointers[newIndex]) {
+ interimTouch.pointers[oldIndex] = mCurrentTouch.pointers[newIndex];
+ moveNeeded = true;
+ }
+ }
+
+ // Dispatch pointer up events using the interim pointer locations.
+ 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, &interimTouch,
+ oldActiveIdBits, upId, pointerCount, motionEventAction);
+ pointerCount -= 1;
+ }
+
+ // Dispatch move events if any of the remaining pointers moved from their old locations.
+ // Although applications receive new locations as part of individual pointer up
+ // events, they do not generally handle them except when presented in a move event.
+ if (moveNeeded) {
+ dispatchTouch(when, policyFlags, &mCurrentTouch,
+ activeIdBits, -1, pointerCount, AMOTION_EVENT_ACTION_MOVE);
+ }
+
+ // Dispatch pointer down events using the new pointer locations.
+ 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;
+ }
+
+ pointerCount += 1;
+ dispatchTouch(when, policyFlags, &mCurrentTouch,
+ activeIdBits, downId, pointerCount, motionEventAction);
+ }
+ }
+}
+
+void TouchInputMapper::dispatchTouch(nsecs_t when, uint32_t policyFlags,
+ TouchData* touch, BitSet32 idBits, uint32_t changedId, uint32_t pointerCount,
+ int32_t motionEventAction) {
+ int32_t pointerIds[MAX_POINTERS];
+ PointerCoords pointerCoords[MAX_POINTERS];
+ int32_t motionEventEdgeFlags = 0;
+ float xPrecision, yPrecision;
+
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ // Walk through the the active pointers and map touch screen coordinates (TouchData) into
+ // display coordinates (PointerCoords) and adjust for display orientation.
+ for (uint32_t outIndex = 0; ! idBits.isEmpty(); outIndex++) {
+ uint32_t id = idBits.firstMarkedBit();
+ idBits.clearBit(id);
+ uint32_t inIndex = touch->idToIndex[id];
+
+ const PointerData& in = touch->pointers[inIndex];
+
+ // X and Y
+ float x = float(in.x - mLocked.xOrigin) * mLocked.xScale;
+ float y = float(in.y - mLocked.yOrigin) * mLocked.yScale;
+
+ // ToolMajor and ToolMinor
+ float toolMajor, toolMinor;
+ switch (mCalibration.toolSizeCalibration) {
+ case Calibration::TOOL_SIZE_CALIBRATION_GEOMETRIC:
+ toolMajor = in.toolMajor * mLocked.geometricScale;
+ if (mRawAxes.toolMinor.valid) {
+ toolMinor = in.toolMinor * mLocked.geometricScale;
+ } else {
+ toolMinor = toolMajor;
+ }
+ break;
+ case Calibration::TOOL_SIZE_CALIBRATION_LINEAR:
+ toolMajor = in.toolMajor != 0
+ ? in.toolMajor * mLocked.toolSizeLinearScale + mLocked.toolSizeLinearBias
+ : 0;
+ if (mRawAxes.toolMinor.valid) {
+ toolMinor = in.toolMinor != 0
+ ? in.toolMinor * mLocked.toolSizeLinearScale
+ + mLocked.toolSizeLinearBias
+ : 0;
+ } else {
+ toolMinor = toolMajor;
+ }
+ break;
+ case Calibration::TOOL_SIZE_CALIBRATION_AREA:
+ if (in.toolMajor != 0) {
+ float diameter = sqrtf(in.toolMajor
+ * mLocked.toolSizeAreaScale + mLocked.toolSizeAreaBias);
+ toolMajor = diameter * mLocked.toolSizeLinearScale + mLocked.toolSizeLinearBias;
+ } else {
+ toolMajor = 0;
+ }
+ toolMinor = toolMajor;
+ break;
+ default:
+ toolMajor = 0;
+ toolMinor = 0;
+ break;
+ }
+
+ if (mCalibration.haveToolSizeIsSummed && mCalibration.toolSizeIsSummed) {
+ toolMajor /= pointerCount;
+ toolMinor /= pointerCount;
+ }
+
+ // Pressure
+ float rawPressure;
+ switch (mCalibration.pressureSource) {
+ case Calibration::PRESSURE_SOURCE_PRESSURE:
+ rawPressure = in.pressure;
+ break;
+ case Calibration::PRESSURE_SOURCE_TOUCH:
+ rawPressure = in.touchMajor;
+ break;
+ default:
+ rawPressure = 0;
+ }
+
+ float pressure;
+ switch (mCalibration.pressureCalibration) {
+ case Calibration::PRESSURE_CALIBRATION_PHYSICAL:
+ case Calibration::PRESSURE_CALIBRATION_AMPLITUDE:
+ pressure = rawPressure * mLocked.pressureScale;
+ break;
+ default:
+ pressure = 1;
+ break;
+ }
+
+ // TouchMajor and TouchMinor
+ float touchMajor, touchMinor;
+ switch (mCalibration.touchSizeCalibration) {
+ case Calibration::TOUCH_SIZE_CALIBRATION_GEOMETRIC:
+ touchMajor = in.touchMajor * mLocked.geometricScale;
+ if (mRawAxes.touchMinor.valid) {
+ touchMinor = in.touchMinor * mLocked.geometricScale;
+ } else {
+ touchMinor = touchMajor;
+ }
+ break;
+ case Calibration::TOUCH_SIZE_CALIBRATION_PRESSURE:
+ touchMajor = toolMajor * pressure;
+ touchMinor = toolMinor * pressure;
+ break;
+ default:
+ touchMajor = 0;
+ touchMinor = 0;
+ break;
+ }
+
+ if (touchMajor > toolMajor) {
+ touchMajor = toolMajor;
+ }
+ if (touchMinor > toolMinor) {
+ touchMinor = toolMinor;
+ }
+
+ // Size
+ float size;
+ switch (mCalibration.sizeCalibration) {
+ case Calibration::SIZE_CALIBRATION_NORMALIZED: {
+ float rawSize = mRawAxes.toolMinor.valid
+ ? avg(in.toolMajor, in.toolMinor)
+ : in.toolMajor;
+ size = rawSize * mLocked.sizeScale;
+ break;
+ }
+ default:
+ size = 0;
+ break;
+ }
+
+ // Orientation
+ float orientation;
+ switch (mCalibration.orientationCalibration) {
+ case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED:
+ orientation = in.orientation * mLocked.orientationScale;
+ break;
+ default:
+ orientation = 0;
+ }
+
+ // Adjust coords for orientation.
+ switch (mLocked.surfaceOrientation) {
+ case DISPLAY_ORIENTATION_90: {
+ float xTemp = x;
+ x = y;
+ y = mLocked.surfaceWidth - xTemp;
+ orientation -= M_PI_2;
+ if (orientation < - M_PI_2) {
+ orientation += M_PI;
+ }
+ break;
+ }
+ case DISPLAY_ORIENTATION_180: {
+ x = mLocked.surfaceWidth - x;
+ y = mLocked.surfaceHeight - y;
+ orientation = - orientation;
+ break;
+ }
+ case DISPLAY_ORIENTATION_270: {
+ float xTemp = x;
+ x = mLocked.surfaceHeight - y;
+ y = xTemp;
+ orientation += M_PI_2;
+ if (orientation > M_PI_2) {
+ orientation -= M_PI;
+ }
+ break;
+ }
+ }
+
+ // Write output coords.
+ PointerCoords& out = pointerCoords[outIndex];
+ out.x = x;
+ out.y = y;
+ out.pressure = pressure;
+ out.size = size;
+ out.touchMajor = touchMajor;
+ out.touchMinor = touchMinor;
+ out.toolMajor = toolMajor;
+ out.toolMinor = toolMinor;
+ out.orientation = orientation;
+
+ pointerIds[outIndex] = int32_t(id);
+
+ if (id == changedId) {
+ motionEventAction |= outIndex << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
+ }
+ }
+
+ // Check edge flags by looking only at the first pointer since the flags are
+ // global to the event.
+ if (motionEventAction == AMOTION_EVENT_ACTION_DOWN) {
+ if (pointerCoords[0].x <= 0) {
+ motionEventEdgeFlags |= AMOTION_EVENT_EDGE_FLAG_LEFT;
+ } else if (pointerCoords[0].x >= mLocked.orientedSurfaceWidth) {
+ motionEventEdgeFlags |= AMOTION_EVENT_EDGE_FLAG_RIGHT;
+ }
+ if (pointerCoords[0].y <= 0) {
+ motionEventEdgeFlags |= AMOTION_EVENT_EDGE_FLAG_TOP;
+ } else if (pointerCoords[0].y >= mLocked.orientedSurfaceHeight) {
+ motionEventEdgeFlags |= AMOTION_EVENT_EDGE_FLAG_BOTTOM;
+ }
+ }
+
+ xPrecision = mLocked.orientedXPrecision;
+ yPrecision = mLocked.orientedYPrecision;
+ } // release lock
+
+ getDispatcher()->notifyMotion(when, getDeviceId(), mSources, policyFlags,
+ motionEventAction, 0, getContext()->getGlobalMetaState(), motionEventEdgeFlags,
+ pointerCount, pointerIds, pointerCoords,
+ xPrecision, yPrecision, mDownTime);
+}
+
+bool TouchInputMapper::isPointInsideSurfaceLocked(int32_t x, int32_t y) {
+ if (mRawAxes.x.valid && mRawAxes.y.valid) {
+ return x >= mRawAxes.x.minValue && x <= mRawAxes.x.maxValue
+ && y >= mRawAxes.y.minValue && y <= mRawAxes.y.maxValue;
+ }
+ return true;
+}
+
+const TouchInputMapper::VirtualKey* TouchInputMapper::findVirtualKeyHitLocked(
+ int32_t x, int32_t y) {
+ size_t numVirtualKeys = mLocked.virtualKeys.size();
+ for (size_t i = 0; i < numVirtualKeys; i++) {
+ const VirtualKey& virtualKey = mLocked.virtualKeys[i];
+
+#if DEBUG_VIRTUAL_KEYS
+ LOGD("VirtualKeys: Hit test (%d, %d): keyCode=%d, scanCode=%d, "
+ "left=%d, top=%d, right=%d, bottom=%d",
+ x, y,
+ virtualKey.keyCode, virtualKey.scanCode,
+ virtualKey.hitLeft, virtualKey.hitTop,
+ virtualKey.hitRight, virtualKey.hitBottom);
+#endif
+
+ if (virtualKey.isHit(x, y)) {
+ 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 (! mRawAxes.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 = mRawAxes.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 (! mRawAxes.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 = mRawAxes.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;
+ switch (mCalibration.pressureSource) {
+ case Calibration::PRESSURE_SOURCE_PRESSURE:
+ pressure = mCurrentTouch.pointers[currentIndex].pressure;
+ break;
+ case Calibration::PRESSURE_SOURCE_TOUCH:
+ pressure = mCurrentTouch.pointers[currentIndex].touchMajor;
+ break;
+ default:
+ pressure = 1;
+ break;
+ }
+
+ 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;
+ }
+ }
+
+ if (totalPressure != 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 lock
+ AutoMutex _l(mLock);
+
+ if (mLocked.currentVirtualKey.down && mLocked.currentVirtualKey.keyCode == keyCode) {
+ return AKEY_STATE_VIRTUAL;
+ }
+
+ size_t numVirtualKeys = mLocked.virtualKeys.size();
+ for (size_t i = 0; i < numVirtualKeys; i++) {
+ const VirtualKey& virtualKey = mLocked.virtualKeys[i];
+ if (virtualKey.keyCode == keyCode) {
+ return AKEY_STATE_UP;
+ }
+ }
+ } // release lock
+
+ return AKEY_STATE_UNKNOWN;
+}
+
+int32_t TouchInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) {
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ if (mLocked.currentVirtualKey.down && mLocked.currentVirtualKey.scanCode == scanCode) {
+ return AKEY_STATE_VIRTUAL;
+ }
+
+ size_t numVirtualKeys = mLocked.virtualKeys.size();
+ for (size_t i = 0; i < numVirtualKeys; i++) {
+ const VirtualKey& virtualKey = mLocked.virtualKeys[i];
+ if (virtualKey.scanCode == scanCode) {
+ return AKEY_STATE_UP;
+ }
+ }
+ } // release lock
+
+ return AKEY_STATE_UNKNOWN;
+}
+
+bool TouchInputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
+ const int32_t* keyCodes, uint8_t* outFlags) {
+ { // acquire lock
+ AutoMutex _l(mLock);
+
+ size_t numVirtualKeys = mLocked.virtualKeys.size();
+ for (size_t i = 0; i < numVirtualKeys; i++) {
+ const VirtualKey& virtualKey = mLocked.virtualKeys[i];
+
+ for (size_t i = 0; i < numCodes; i++) {
+ if (virtualKey.keyCode == keyCodes[i]) {
+ outFlags[i] = 1;
+ }
+ }
+ }
+ } // release lock
+
+ return true;
+}
+
+
+// --- SingleTouchInputMapper ---
+
+SingleTouchInputMapper::SingleTouchInputMapper(InputDevice* device) :
+ TouchInputMapper(device) {
+ initialize();
+}
+
+SingleTouchInputMapper::~SingleTouchInputMapper() {
+}
+
+void SingleTouchInputMapper::initialize() {
+ mAccumulator.clear();
+
+ mDown = false;
+ mX = 0;
+ mY = 0;
+ mPressure = 0; // default to 0 for devices that don't report pressure
+ mToolWidth = 0; // default to 0 for devices that don't report tool width
+}
+
+void SingleTouchInputMapper::reset() {
+ TouchInputMapper::reset();
+
+ 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;
+ // Don't sync immediately. Wait until the next SYN_REPORT since we might
+ // not have received valid position information yet. This logic assumes that
+ // BTN_TOUCH is always followed by SYN_REPORT as part of a complete packet.
+ 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:
+ sync(rawEvent->when);
+ break;
+ }
+ break;
+ }
+}
+
+void SingleTouchInputMapper::sync(nsecs_t when) {
+ uint32_t fields = mAccumulator.fields;
+ if (fields == 0) {
+ return; // no new state changes, so nothing to do
+ }
+
+ 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) {
+ mToolWidth = 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].touchMajor = 0;
+ mCurrentTouch.pointers[0].touchMinor = 0;
+ mCurrentTouch.pointers[0].toolMajor = mToolWidth;
+ mCurrentTouch.pointers[0].toolMinor = mToolWidth;
+ mCurrentTouch.pointers[0].orientation = 0;
+ mCurrentTouch.idToIndex[0] = 0;
+ mCurrentTouch.idBits.markBit(0);
+ }
+
+ syncTouch(when, true);
+
+ mAccumulator.clear();
+}
+
+void SingleTouchInputMapper::configureRawAxes() {
+ TouchInputMapper::configureRawAxes();
+
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_X, & mRawAxes.x);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_Y, & mRawAxes.y);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_PRESSURE, & mRawAxes.pressure);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_TOOL_WIDTH, & mRawAxes.toolMajor);
+}
+
+
+// --- MultiTouchInputMapper ---
+
+MultiTouchInputMapper::MultiTouchInputMapper(InputDevice* device) :
+ TouchInputMapper(device) {
+ initialize();
+}
+
+MultiTouchInputMapper::~MultiTouchInputMapper() {
+}
+
+void MultiTouchInputMapper::initialize() {
+ mAccumulator.clear();
+}
+
+void MultiTouchInputMapper::reset() {
+ TouchInputMapper::reset();
+
+ 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;
+ case ABS_MT_PRESSURE:
+ pointer->fields |= Accumulator::FIELD_ABS_MT_PRESSURE;
+ pointer->absMTPressure = 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:
+ sync(rawEvent->when);
+ 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;
+
+ uint32_t inCount = mAccumulator.pointerCount;
+ uint32_t outCount = 0;
+ bool havePointerIds = true;
+
+ mCurrentTouch.clear();
+
+ for (uint32_t inIndex = 0; inIndex < inCount; inIndex++) {
+ const Accumulator::Pointer& inPointer = mAccumulator.pointers[inIndex];
+ uint32_t fields = inPointer.fields;
+
+ if ((fields & REQUIRED_FIELDS) != REQUIRED_FIELDS) {
+ // Some drivers send empty MT sync packets without X / Y to indicate a pointer up.
+ // Drop this finger.
+ continue;
+ }
+
+ PointerData& outPointer = mCurrentTouch.pointers[outCount];
+ outPointer.x = inPointer.absMTPositionX;
+ outPointer.y = inPointer.absMTPositionY;
+
+ if (fields & Accumulator::FIELD_ABS_MT_PRESSURE) {
+ if (inPointer.absMTPressure <= 0) {
+ // Some devices send sync packets with X / Y but with a 0 pressure to indicate
+ // a pointer going up. Drop this finger.
+ continue;
+ }
+ outPointer.pressure = inPointer.absMTPressure;
+ } else {
+ // Default pressure to 0 if absent.
+ outPointer.pressure = 0;
+ }
+
+ if (fields & Accumulator::FIELD_ABS_MT_TOUCH_MAJOR) {
+ if (inPointer.absMTTouchMajor <= 0) {
+ // Some devices send sync packets with X / Y but with a 0 touch major to indicate
+ // a pointer going up. Drop this finger.
+ continue;
+ }
+ outPointer.touchMajor = inPointer.absMTTouchMajor;
+ } else {
+ // Default touch area to 0 if absent.
+ outPointer.touchMajor = 0;
+ }
+
+ if (fields & Accumulator::FIELD_ABS_MT_TOUCH_MINOR) {
+ outPointer.touchMinor = inPointer.absMTTouchMinor;
+ } else {
+ // Assume touch area is circular.
+ outPointer.touchMinor = outPointer.touchMajor;
+ }
+
+ if (fields & Accumulator::FIELD_ABS_MT_WIDTH_MAJOR) {
+ outPointer.toolMajor = inPointer.absMTWidthMajor;
+ } else {
+ // Default tool area to 0 if absent.
+ outPointer.toolMajor = 0;
+ }
+
+ if (fields & Accumulator::FIELD_ABS_MT_WIDTH_MINOR) {
+ outPointer.toolMinor = inPointer.absMTWidthMinor;
+ } else {
+ // Assume tool area is circular.
+ outPointer.toolMinor = outPointer.toolMajor;
+ }
+
+ if (fields & Accumulator::FIELD_ABS_MT_ORIENTATION) {
+ outPointer.orientation = inPointer.absMTOrientation;
+ } else {
+ // Default orientation to vertical if absent.
+ outPointer.orientation = 0;
+ }
+
+ // Assign pointer id using tracking id if available.
+ if (havePointerIds) {
+ if (fields & Accumulator::FIELD_ABS_MT_TRACKING_ID) {
+ uint32_t id = uint32_t(inPointer.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",
+ id, MAX_POINTER_ID);
+#endif
+ havePointerIds = false;
+ }
+ else {
+ outPointer.id = id;
+ mCurrentTouch.idToIndex[id] = outCount;
+ mCurrentTouch.idBits.markBit(id);
+ }
+ } else {
+ havePointerIds = false;
+ }
+ }
+
+ outCount += 1;
+ }
+
+ mCurrentTouch.pointerCount = outCount;
+
+ syncTouch(when, havePointerIds);
+
+ mAccumulator.clear();
+}
+
+void MultiTouchInputMapper::configureRawAxes() {
+ TouchInputMapper::configureRawAxes();
+
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_POSITION_X, & mRawAxes.x);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_POSITION_Y, & mRawAxes.y);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_TOUCH_MAJOR, & mRawAxes.touchMajor);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_TOUCH_MINOR, & mRawAxes.touchMinor);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_WIDTH_MAJOR, & mRawAxes.toolMajor);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_WIDTH_MINOR, & mRawAxes.toolMinor);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_ORIENTATION, & mRawAxes.orientation);
+ getEventHub()->getAbsoluteAxisInfo(getDeviceId(), ABS_MT_PRESSURE, & mRawAxes.pressure);
+}
+
+
+} // namespace android