1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "InputReader" 18 19 //#define LOG_NDEBUG 0 20 21 // Log debug messages for each raw event received from the EventHub. 22 #define DEBUG_RAW_EVENTS 0 23 24 // Log debug messages about touch screen filtering hacks. 25 #define DEBUG_HACKS 0 26 27 // Log debug messages about virtual key processing. 28 #define DEBUG_VIRTUAL_KEYS 0 29 30 // Log debug messages about pointers. 31 #define DEBUG_POINTERS 0 32 33 // Log debug messages about pointer assignment calculations. 34 #define DEBUG_POINTER_ASSIGNMENT 0 35 36 // Log debug messages about gesture detection. 37 #define DEBUG_GESTURES 0 38 39 // Log debug messages about the vibrator. 40 #define DEBUG_VIBRATOR 0 41 42 #include "InputReader.h" 43 44 #include <cutils/log.h> 45 #include <androidfw/Keyboard.h> 46 #include <androidfw/VirtualKeyMap.h> 47 48 #include <stddef.h> 49 #include <stdlib.h> 50 #include <unistd.h> 51 #include <errno.h> 52 #include <limits.h> 53 #include <math.h> 54 55 #define INDENT " " 56 #define INDENT2 " " 57 #define INDENT3 " " 58 #define INDENT4 " " 59 #define INDENT5 " " 60 61 namespace android { 62 63 // --- Constants --- 64 65 // Maximum number of slots supported when using the slot-based Multitouch Protocol B. 66 static const size_t MAX_SLOTS = 32; 67 68 // --- Static Functions --- 69 70 template<typename T> 71 inline static T abs(const T& value) { 72 return value < 0 ? - value : value; 73 } 74 75 template<typename T> 76 inline static T min(const T& a, const T& b) { 77 return a < b ? a : b; 78 } 79 80 template<typename T> 81 inline static void swap(T& a, T& b) { 82 T temp = a; 83 a = b; 84 b = temp; 85 } 86 87 inline static float avg(float x, float y) { 88 return (x + y) / 2; 89 } 90 91 inline static float distance(float x1, float y1, float x2, float y2) { 92 return hypotf(x1 - x2, y1 - y2); 93 } 94 95 inline static int32_t signExtendNybble(int32_t value) { 96 return value >= 8 ? value - 16 : value; 97 } 98 99 static inline const char* toString(bool value) { 100 return value ? "true" : "false"; 101 } 102 103 static int32_t rotateValueUsingRotationMap(int32_t value, int32_t orientation, 104 const int32_t map[][4], size_t mapSize) { 105 if (orientation != DISPLAY_ORIENTATION_0) { 106 for (size_t i = 0; i < mapSize; i++) { 107 if (value == map[i][0]) { 108 return map[i][orientation]; 109 } 110 } 111 } 112 return value; 113 } 114 115 static const int32_t keyCodeRotationMap[][4] = { 116 // key codes enumerated counter-clockwise with the original (unrotated) key first 117 // no rotation, 90 degree rotation, 180 degree rotation, 270 degree rotation 118 { AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT }, 119 { AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN }, 120 { AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT }, 121 { AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_UP }, 122 }; 123 static const size_t keyCodeRotationMapSize = 124 sizeof(keyCodeRotationMap) / sizeof(keyCodeRotationMap[0]); 125 126 static int32_t rotateKeyCode(int32_t keyCode, int32_t orientation) { 127 return rotateValueUsingRotationMap(keyCode, orientation, 128 keyCodeRotationMap, keyCodeRotationMapSize); 129 } 130 131 static void rotateDelta(int32_t orientation, float* deltaX, float* deltaY) { 132 float temp; 133 switch (orientation) { 134 case DISPLAY_ORIENTATION_90: 135 temp = *deltaX; 136 *deltaX = *deltaY; 137 *deltaY = -temp; 138 break; 139 140 case DISPLAY_ORIENTATION_180: 141 *deltaX = -*deltaX; 142 *deltaY = -*deltaY; 143 break; 144 145 case DISPLAY_ORIENTATION_270: 146 temp = *deltaX; 147 *deltaX = -*deltaY; 148 *deltaY = temp; 149 break; 150 } 151 } 152 153 static inline bool sourcesMatchMask(uint32_t sources, uint32_t sourceMask) { 154 return (sources & sourceMask & ~ AINPUT_SOURCE_CLASS_MASK) != 0; 155 } 156 157 // Returns true if the pointer should be reported as being down given the specified 158 // button states. This determines whether the event is reported as a touch event. 159 static bool isPointerDown(int32_t buttonState) { 160 return buttonState & 161 (AMOTION_EVENT_BUTTON_PRIMARY | AMOTION_EVENT_BUTTON_SECONDARY 162 | AMOTION_EVENT_BUTTON_TERTIARY); 163 } 164 165 static float calculateCommonVector(float a, float b) { 166 if (a > 0 && b > 0) { 167 return a < b ? a : b; 168 } else if (a < 0 && b < 0) { 169 return a > b ? a : b; 170 } else { 171 return 0; 172 } 173 } 174 175 static void synthesizeButtonKey(InputReaderContext* context, int32_t action, 176 nsecs_t when, int32_t deviceId, uint32_t source, 177 uint32_t policyFlags, int32_t lastButtonState, int32_t currentButtonState, 178 int32_t buttonState, int32_t keyCode) { 179 if ( 180 (action == AKEY_EVENT_ACTION_DOWN 181 && !(lastButtonState & buttonState) 182 && (currentButtonState & buttonState)) 183 || (action == AKEY_EVENT_ACTION_UP 184 && (lastButtonState & buttonState) 185 && !(currentButtonState & buttonState))) { 186 NotifyKeyArgs args(when, deviceId, source, policyFlags, 187 action, 0, keyCode, 0, context->getGlobalMetaState(), when); 188 context->getListener()->notifyKey(&args); 189 } 190 } 191 192 static void synthesizeButtonKeys(InputReaderContext* context, int32_t action, 193 nsecs_t when, int32_t deviceId, uint32_t source, 194 uint32_t policyFlags, int32_t lastButtonState, int32_t currentButtonState) { 195 synthesizeButtonKey(context, action, when, deviceId, source, policyFlags, 196 lastButtonState, currentButtonState, 197 AMOTION_EVENT_BUTTON_BACK, AKEYCODE_BACK); 198 synthesizeButtonKey(context, action, when, deviceId, source, policyFlags, 199 lastButtonState, currentButtonState, 200 AMOTION_EVENT_BUTTON_FORWARD, AKEYCODE_FORWARD); 201 } 202 203 204 // --- InputReaderConfiguration --- 205 206 bool InputReaderConfiguration::getDisplayInfo(bool external, DisplayViewport* outViewport) const { 207 const DisplayViewport& viewport = external ? mExternalDisplay : mInternalDisplay; 208 if (viewport.displayId >= 0) { 209 *outViewport = viewport; 210 return true; 211 } 212 return false; 213 } 214 215 void InputReaderConfiguration::setDisplayInfo(bool external, const DisplayViewport& viewport) { 216 DisplayViewport& v = external ? mExternalDisplay : mInternalDisplay; 217 v = viewport; 218 } 219 220 221 // --- InputReader --- 222 223 InputReader::InputReader(const sp<EventHubInterface>& eventHub, 224 const sp<InputReaderPolicyInterface>& policy, 225 const sp<InputListenerInterface>& listener) : 226 mContext(this), mEventHub(eventHub), mPolicy(policy), 227 mGlobalMetaState(0), mGeneration(1), 228 mDisableVirtualKeysTimeout(LLONG_MIN), mNextTimeout(LLONG_MAX), 229 mConfigurationChangesToRefresh(0) { 230 mQueuedListener = new QueuedInputListener(listener); 231 232 { // acquire lock 233 AutoMutex _l(mLock); 234 235 refreshConfigurationLocked(0); 236 updateGlobalMetaStateLocked(); 237 } // release lock 238 } 239 240 InputReader::~InputReader() { 241 for (size_t i = 0; i < mDevices.size(); i++) { 242 delete mDevices.valueAt(i); 243 } 244 } 245 246 void InputReader::loopOnce() { 247 int32_t oldGeneration; 248 int32_t timeoutMillis; 249 bool inputDevicesChanged = false; 250 Vector<InputDeviceInfo> inputDevices; 251 { // acquire lock 252 AutoMutex _l(mLock); 253 254 oldGeneration = mGeneration; 255 timeoutMillis = -1; 256 257 uint32_t changes = mConfigurationChangesToRefresh; 258 if (changes) { 259 mConfigurationChangesToRefresh = 0; 260 timeoutMillis = 0; 261 refreshConfigurationLocked(changes); 262 } else if (mNextTimeout != LLONG_MAX) { 263 nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); 264 timeoutMillis = toMillisecondTimeoutDelay(now, mNextTimeout); 265 } 266 } // release lock 267 268 size_t count = mEventHub->getEvents(timeoutMillis, mEventBuffer, EVENT_BUFFER_SIZE); 269 270 { // acquire lock 271 AutoMutex _l(mLock); 272 mReaderIsAliveCondition.broadcast(); 273 274 if (count) { 275 processEventsLocked(mEventBuffer, count); 276 } 277 278 if (mNextTimeout != LLONG_MAX) { 279 nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); 280 if (now >= mNextTimeout) { 281 #if DEBUG_RAW_EVENTS 282 ALOGD("Timeout expired, latency=%0.3fms", (now - mNextTimeout) * 0.000001f); 283 #endif 284 mNextTimeout = LLONG_MAX; 285 timeoutExpiredLocked(now); 286 } 287 } 288 289 if (oldGeneration != mGeneration) { 290 inputDevicesChanged = true; 291 getInputDevicesLocked(inputDevices); 292 } 293 } // release lock 294 295 // Send out a message that the describes the changed input devices. 296 if (inputDevicesChanged) { 297 mPolicy->notifyInputDevicesChanged(inputDevices); 298 } 299 300 // Flush queued events out to the listener. 301 // This must happen outside of the lock because the listener could potentially call 302 // back into the InputReader's methods, such as getScanCodeState, or become blocked 303 // on another thread similarly waiting to acquire the InputReader lock thereby 304 // resulting in a deadlock. This situation is actually quite plausible because the 305 // listener is actually the input dispatcher, which calls into the window manager, 306 // which occasionally calls into the input reader. 307 mQueuedListener->flush(); 308 } 309 310 void InputReader::processEventsLocked(const RawEvent* rawEvents, size_t count) { 311 for (const RawEvent* rawEvent = rawEvents; count;) { 312 int32_t type = rawEvent->type; 313 size_t batchSize = 1; 314 if (type < EventHubInterface::FIRST_SYNTHETIC_EVENT) { 315 int32_t deviceId = rawEvent->deviceId; 316 while (batchSize < count) { 317 if (rawEvent[batchSize].type >= EventHubInterface::FIRST_SYNTHETIC_EVENT 318 || rawEvent[batchSize].deviceId != deviceId) { 319 break; 320 } 321 batchSize += 1; 322 } 323 #if DEBUG_RAW_EVENTS 324 ALOGD("BatchSize: %d Count: %d", batchSize, count); 325 #endif 326 processEventsForDeviceLocked(deviceId, rawEvent, batchSize); 327 } else { 328 switch (rawEvent->type) { 329 case EventHubInterface::DEVICE_ADDED: 330 addDeviceLocked(rawEvent->when, rawEvent->deviceId); 331 break; 332 case EventHubInterface::DEVICE_REMOVED: 333 removeDeviceLocked(rawEvent->when, rawEvent->deviceId); 334 break; 335 case EventHubInterface::FINISHED_DEVICE_SCAN: 336 handleConfigurationChangedLocked(rawEvent->when); 337 break; 338 default: 339 ALOG_ASSERT(false); // can't happen 340 break; 341 } 342 } 343 count -= batchSize; 344 rawEvent += batchSize; 345 } 346 } 347 348 void InputReader::addDeviceLocked(nsecs_t when, int32_t deviceId) { 349 ssize_t deviceIndex = mDevices.indexOfKey(deviceId); 350 if (deviceIndex >= 0) { 351 ALOGW("Ignoring spurious device added event for deviceId %d.", deviceId); 352 return; 353 } 354 355 InputDeviceIdentifier identifier = mEventHub->getDeviceIdentifier(deviceId); 356 uint32_t classes = mEventHub->getDeviceClasses(deviceId); 357 358 InputDevice* device = createDeviceLocked(deviceId, identifier, classes); 359 device->configure(when, &mConfig, 0); 360 device->reset(when); 361 362 if (device->isIgnored()) { 363 ALOGI("Device added: id=%d, name='%s' (ignored non-input device)", deviceId, 364 identifier.name.string()); 365 } else { 366 ALOGI("Device added: id=%d, name='%s', sources=0x%08x", deviceId, 367 identifier.name.string(), device->getSources()); 368 } 369 370 mDevices.add(deviceId, device); 371 bumpGenerationLocked(); 372 } 373 374 void InputReader::removeDeviceLocked(nsecs_t when, int32_t deviceId) { 375 InputDevice* device = NULL; 376 ssize_t deviceIndex = mDevices.indexOfKey(deviceId); 377 if (deviceIndex < 0) { 378 ALOGW("Ignoring spurious device removed event for deviceId %d.", deviceId); 379 return; 380 } 381 382 device = mDevices.valueAt(deviceIndex); 383 mDevices.removeItemsAt(deviceIndex, 1); 384 bumpGenerationLocked(); 385 386 if (device->isIgnored()) { 387 ALOGI("Device removed: id=%d, name='%s' (ignored non-input device)", 388 device->getId(), device->getName().string()); 389 } else { 390 ALOGI("Device removed: id=%d, name='%s', sources=0x%08x", 391 device->getId(), device->getName().string(), device->getSources()); 392 } 393 394 device->reset(when); 395 delete device; 396 } 397 398 InputDevice* InputReader::createDeviceLocked(int32_t deviceId, 399 const InputDeviceIdentifier& identifier, uint32_t classes) { 400 InputDevice* device = new InputDevice(&mContext, deviceId, bumpGenerationLocked(), 401 identifier, classes); 402 403 // External devices. 404 if (classes & INPUT_DEVICE_CLASS_EXTERNAL) { 405 device->setExternal(true); 406 } 407 408 // Switch-like devices. 409 if (classes & INPUT_DEVICE_CLASS_SWITCH) { 410 device->addMapper(new SwitchInputMapper(device)); 411 } 412 413 // Vibrator-like devices. 414 if (classes & INPUT_DEVICE_CLASS_VIBRATOR) { 415 device->addMapper(new VibratorInputMapper(device)); 416 } 417 418 // Keyboard-like devices. 419 uint32_t keyboardSource = 0; 420 int32_t keyboardType = AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC; 421 if (classes & INPUT_DEVICE_CLASS_KEYBOARD) { 422 keyboardSource |= AINPUT_SOURCE_KEYBOARD; 423 } 424 if (classes & INPUT_DEVICE_CLASS_ALPHAKEY) { 425 keyboardType = AINPUT_KEYBOARD_TYPE_ALPHABETIC; 426 } 427 if (classes & INPUT_DEVICE_CLASS_DPAD) { 428 keyboardSource |= AINPUT_SOURCE_DPAD; 429 } 430 if (classes & INPUT_DEVICE_CLASS_GAMEPAD) { 431 keyboardSource |= AINPUT_SOURCE_GAMEPAD; 432 } 433 434 if (keyboardSource != 0) { 435 device->addMapper(new KeyboardInputMapper(device, keyboardSource, keyboardType)); 436 } 437 438 // Cursor-like devices. 439 if (classes & INPUT_DEVICE_CLASS_CURSOR) { 440 device->addMapper(new CursorInputMapper(device)); 441 } 442 443 // Touchscreens and touchpad devices. 444 if (classes & INPUT_DEVICE_CLASS_TOUCH_MT) { 445 device->addMapper(new MultiTouchInputMapper(device)); 446 } else if (classes & INPUT_DEVICE_CLASS_TOUCH) { 447 device->addMapper(new SingleTouchInputMapper(device)); 448 } 449 450 // Joystick-like devices. 451 if (classes & INPUT_DEVICE_CLASS_JOYSTICK) { 452 device->addMapper(new JoystickInputMapper(device)); 453 } 454 455 return device; 456 } 457 458 void InputReader::processEventsForDeviceLocked(int32_t deviceId, 459 const RawEvent* rawEvents, size_t count) { 460 ssize_t deviceIndex = mDevices.indexOfKey(deviceId); 461 if (deviceIndex < 0) { 462 ALOGW("Discarding event for unknown deviceId %d.", deviceId); 463 return; 464 } 465 466 InputDevice* device = mDevices.valueAt(deviceIndex); 467 if (device->isIgnored()) { 468 //ALOGD("Discarding event for ignored deviceId %d.", deviceId); 469 return; 470 } 471 472 device->process(rawEvents, count); 473 } 474 475 void InputReader::timeoutExpiredLocked(nsecs_t when) { 476 for (size_t i = 0; i < mDevices.size(); i++) { 477 InputDevice* device = mDevices.valueAt(i); 478 if (!device->isIgnored()) { 479 device->timeoutExpired(when); 480 } 481 } 482 } 483 484 void InputReader::handleConfigurationChangedLocked(nsecs_t when) { 485 // Reset global meta state because it depends on the list of all configured devices. 486 updateGlobalMetaStateLocked(); 487 488 // Enqueue configuration changed. 489 NotifyConfigurationChangedArgs args(when); 490 mQueuedListener->notifyConfigurationChanged(&args); 491 } 492 493 void InputReader::refreshConfigurationLocked(uint32_t changes) { 494 mPolicy->getReaderConfiguration(&mConfig); 495 mEventHub->setExcludedDevices(mConfig.excludedDeviceNames); 496 497 if (changes) { 498 ALOGI("Reconfiguring input devices. changes=0x%08x", changes); 499 nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); 500 501 if (changes & InputReaderConfiguration::CHANGE_MUST_REOPEN) { 502 mEventHub->requestReopenDevices(); 503 } else { 504 for (size_t i = 0; i < mDevices.size(); i++) { 505 InputDevice* device = mDevices.valueAt(i); 506 device->configure(now, &mConfig, changes); 507 } 508 } 509 } 510 } 511 512 void InputReader::updateGlobalMetaStateLocked() { 513 mGlobalMetaState = 0; 514 515 for (size_t i = 0; i < mDevices.size(); i++) { 516 InputDevice* device = mDevices.valueAt(i); 517 mGlobalMetaState |= device->getMetaState(); 518 } 519 } 520 521 int32_t InputReader::getGlobalMetaStateLocked() { 522 return mGlobalMetaState; 523 } 524 525 void InputReader::disableVirtualKeysUntilLocked(nsecs_t time) { 526 mDisableVirtualKeysTimeout = time; 527 } 528 529 bool InputReader::shouldDropVirtualKeyLocked(nsecs_t now, 530 InputDevice* device, int32_t keyCode, int32_t scanCode) { 531 if (now < mDisableVirtualKeysTimeout) { 532 ALOGI("Dropping virtual key from device %s because virtual keys are " 533 "temporarily disabled for the next %0.3fms. keyCode=%d, scanCode=%d", 534 device->getName().string(), 535 (mDisableVirtualKeysTimeout - now) * 0.000001, 536 keyCode, scanCode); 537 return true; 538 } else { 539 return false; 540 } 541 } 542 543 void InputReader::fadePointerLocked() { 544 for (size_t i = 0; i < mDevices.size(); i++) { 545 InputDevice* device = mDevices.valueAt(i); 546 device->fadePointer(); 547 } 548 } 549 550 void InputReader::requestTimeoutAtTimeLocked(nsecs_t when) { 551 if (when < mNextTimeout) { 552 mNextTimeout = when; 553 mEventHub->wake(); 554 } 555 } 556 557 int32_t InputReader::bumpGenerationLocked() { 558 return ++mGeneration; 559 } 560 561 void InputReader::getInputDevices(Vector<InputDeviceInfo>& outInputDevices) { 562 AutoMutex _l(mLock); 563 getInputDevicesLocked(outInputDevices); 564 } 565 566 void InputReader::getInputDevicesLocked(Vector<InputDeviceInfo>& outInputDevices) { 567 outInputDevices.clear(); 568 569 size_t numDevices = mDevices.size(); 570 for (size_t i = 0; i < numDevices; i++) { 571 InputDevice* device = mDevices.valueAt(i); 572 if (!device->isIgnored()) { 573 outInputDevices.push(); 574 device->getDeviceInfo(&outInputDevices.editTop()); 575 } 576 } 577 } 578 579 int32_t InputReader::getKeyCodeState(int32_t deviceId, uint32_t sourceMask, 580 int32_t keyCode) { 581 AutoMutex _l(mLock); 582 583 return getStateLocked(deviceId, sourceMask, keyCode, &InputDevice::getKeyCodeState); 584 } 585 586 int32_t InputReader::getScanCodeState(int32_t deviceId, uint32_t sourceMask, 587 int32_t scanCode) { 588 AutoMutex _l(mLock); 589 590 return getStateLocked(deviceId, sourceMask, scanCode, &InputDevice::getScanCodeState); 591 } 592 593 int32_t InputReader::getSwitchState(int32_t deviceId, uint32_t sourceMask, int32_t switchCode) { 594 AutoMutex _l(mLock); 595 596 return getStateLocked(deviceId, sourceMask, switchCode, &InputDevice::getSwitchState); 597 } 598 599 int32_t InputReader::getStateLocked(int32_t deviceId, uint32_t sourceMask, int32_t code, 600 GetStateFunc getStateFunc) { 601 int32_t result = AKEY_STATE_UNKNOWN; 602 if (deviceId >= 0) { 603 ssize_t deviceIndex = mDevices.indexOfKey(deviceId); 604 if (deviceIndex >= 0) { 605 InputDevice* device = mDevices.valueAt(deviceIndex); 606 if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) { 607 result = (device->*getStateFunc)(sourceMask, code); 608 } 609 } 610 } else { 611 size_t numDevices = mDevices.size(); 612 for (size_t i = 0; i < numDevices; i++) { 613 InputDevice* device = mDevices.valueAt(i); 614 if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) { 615 // If any device reports AKEY_STATE_DOWN or AKEY_STATE_VIRTUAL, return that 616 // value. Otherwise, return AKEY_STATE_UP as long as one device reports it. 617 int32_t currentResult = (device->*getStateFunc)(sourceMask, code); 618 if (currentResult >= AKEY_STATE_DOWN) { 619 return currentResult; 620 } else if (currentResult == AKEY_STATE_UP) { 621 result = currentResult; 622 } 623 } 624 } 625 } 626 return result; 627 } 628 629 bool InputReader::hasKeys(int32_t deviceId, uint32_t sourceMask, 630 size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) { 631 AutoMutex _l(mLock); 632 633 memset(outFlags, 0, numCodes); 634 return markSupportedKeyCodesLocked(deviceId, sourceMask, numCodes, keyCodes, outFlags); 635 } 636 637 bool InputReader::markSupportedKeyCodesLocked(int32_t deviceId, uint32_t sourceMask, 638 size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) { 639 bool result = false; 640 if (deviceId >= 0) { 641 ssize_t deviceIndex = mDevices.indexOfKey(deviceId); 642 if (deviceIndex >= 0) { 643 InputDevice* device = mDevices.valueAt(deviceIndex); 644 if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) { 645 result = device->markSupportedKeyCodes(sourceMask, 646 numCodes, keyCodes, outFlags); 647 } 648 } 649 } else { 650 size_t numDevices = mDevices.size(); 651 for (size_t i = 0; i < numDevices; i++) { 652 InputDevice* device = mDevices.valueAt(i); 653 if (! device->isIgnored() && sourcesMatchMask(device->getSources(), sourceMask)) { 654 result |= device->markSupportedKeyCodes(sourceMask, 655 numCodes, keyCodes, outFlags); 656 } 657 } 658 } 659 return result; 660 } 661 662 void InputReader::requestRefreshConfiguration(uint32_t changes) { 663 AutoMutex _l(mLock); 664 665 if (changes) { 666 bool needWake = !mConfigurationChangesToRefresh; 667 mConfigurationChangesToRefresh |= changes; 668 669 if (needWake) { 670 mEventHub->wake(); 671 } 672 } 673 } 674 675 void InputReader::vibrate(int32_t deviceId, const nsecs_t* pattern, size_t patternSize, 676 ssize_t repeat, int32_t token) { 677 AutoMutex _l(mLock); 678 679 ssize_t deviceIndex = mDevices.indexOfKey(deviceId); 680 if (deviceIndex >= 0) { 681 InputDevice* device = mDevices.valueAt(deviceIndex); 682 device->vibrate(pattern, patternSize, repeat, token); 683 } 684 } 685 686 void InputReader::cancelVibrate(int32_t deviceId, int32_t token) { 687 AutoMutex _l(mLock); 688 689 ssize_t deviceIndex = mDevices.indexOfKey(deviceId); 690 if (deviceIndex >= 0) { 691 InputDevice* device = mDevices.valueAt(deviceIndex); 692 device->cancelVibrate(token); 693 } 694 } 695 696 void InputReader::dump(String8& dump) { 697 AutoMutex _l(mLock); 698 699 mEventHub->dump(dump); 700 dump.append("\n"); 701 702 dump.append("Input Reader State:\n"); 703 704 for (size_t i = 0; i < mDevices.size(); i++) { 705 mDevices.valueAt(i)->dump(dump); 706 } 707 708 dump.append(INDENT "Configuration:\n"); 709 dump.append(INDENT2 "ExcludedDeviceNames: ["); 710 for (size_t i = 0; i < mConfig.excludedDeviceNames.size(); i++) { 711 if (i != 0) { 712 dump.append(", "); 713 } 714 dump.append(mConfig.excludedDeviceNames.itemAt(i).string()); 715 } 716 dump.append("]\n"); 717 dump.appendFormat(INDENT2 "VirtualKeyQuietTime: %0.1fms\n", 718 mConfig.virtualKeyQuietTime * 0.000001f); 719 720 dump.appendFormat(INDENT2 "PointerVelocityControlParameters: " 721 "scale=%0.3f, lowThreshold=%0.3f, highThreshold=%0.3f, acceleration=%0.3f\n", 722 mConfig.pointerVelocityControlParameters.scale, 723 mConfig.pointerVelocityControlParameters.lowThreshold, 724 mConfig.pointerVelocityControlParameters.highThreshold, 725 mConfig.pointerVelocityControlParameters.acceleration); 726 727 dump.appendFormat(INDENT2 "WheelVelocityControlParameters: " 728 "scale=%0.3f, lowThreshold=%0.3f, highThreshold=%0.3f, acceleration=%0.3f\n", 729 mConfig.wheelVelocityControlParameters.scale, 730 mConfig.wheelVelocityControlParameters.lowThreshold, 731 mConfig.wheelVelocityControlParameters.highThreshold, 732 mConfig.wheelVelocityControlParameters.acceleration); 733 734 dump.appendFormat(INDENT2 "PointerGesture:\n"); 735 dump.appendFormat(INDENT3 "Enabled: %s\n", 736 toString(mConfig.pointerGesturesEnabled)); 737 dump.appendFormat(INDENT3 "QuietInterval: %0.1fms\n", 738 mConfig.pointerGestureQuietInterval * 0.000001f); 739 dump.appendFormat(INDENT3 "DragMinSwitchSpeed: %0.1fpx/s\n", 740 mConfig.pointerGestureDragMinSwitchSpeed); 741 dump.appendFormat(INDENT3 "TapInterval: %0.1fms\n", 742 mConfig.pointerGestureTapInterval * 0.000001f); 743 dump.appendFormat(INDENT3 "TapDragInterval: %0.1fms\n", 744 mConfig.pointerGestureTapDragInterval * 0.000001f); 745 dump.appendFormat(INDENT3 "TapSlop: %0.1fpx\n", 746 mConfig.pointerGestureTapSlop); 747 dump.appendFormat(INDENT3 "MultitouchSettleInterval: %0.1fms\n", 748 mConfig.pointerGestureMultitouchSettleInterval * 0.000001f); 749 dump.appendFormat(INDENT3 "MultitouchMinDistance: %0.1fpx\n", 750 mConfig.pointerGestureMultitouchMinDistance); 751 dump.appendFormat(INDENT3 "SwipeTransitionAngleCosine: %0.1f\n", 752 mConfig.pointerGestureSwipeTransitionAngleCosine); 753 dump.appendFormat(INDENT3 "SwipeMaxWidthRatio: %0.1f\n", 754 mConfig.pointerGestureSwipeMaxWidthRatio); 755 dump.appendFormat(INDENT3 "MovementSpeedRatio: %0.1f\n", 756 mConfig.pointerGestureMovementSpeedRatio); 757 dump.appendFormat(INDENT3 "ZoomSpeedRatio: %0.1f\n", 758 mConfig.pointerGestureZoomSpeedRatio); 759 } 760 761 void InputReader::monitor() { 762 // Acquire and release the lock to ensure that the reader has not deadlocked. 763 mLock.lock(); 764 mEventHub->wake(); 765 mReaderIsAliveCondition.wait(mLock); 766 mLock.unlock(); 767 768 // Check the EventHub 769 mEventHub->monitor(); 770 } 771 772 773 // --- InputReader::ContextImpl --- 774 775 InputReader::ContextImpl::ContextImpl(InputReader* reader) : 776 mReader(reader) { 777 } 778 779 void InputReader::ContextImpl::updateGlobalMetaState() { 780 // lock is already held by the input loop 781 mReader->updateGlobalMetaStateLocked(); 782 } 783 784 int32_t InputReader::ContextImpl::getGlobalMetaState() { 785 // lock is already held by the input loop 786 return mReader->getGlobalMetaStateLocked(); 787 } 788 789 void InputReader::ContextImpl::disableVirtualKeysUntil(nsecs_t time) { 790 // lock is already held by the input loop 791 mReader->disableVirtualKeysUntilLocked(time); 792 } 793 794 bool InputReader::ContextImpl::shouldDropVirtualKey(nsecs_t now, 795 InputDevice* device, int32_t keyCode, int32_t scanCode) { 796 // lock is already held by the input loop 797 return mReader->shouldDropVirtualKeyLocked(now, device, keyCode, scanCode); 798 } 799 800 void InputReader::ContextImpl::fadePointer() { 801 // lock is already held by the input loop 802 mReader->fadePointerLocked(); 803 } 804 805 void InputReader::ContextImpl::requestTimeoutAtTime(nsecs_t when) { 806 // lock is already held by the input loop 807 mReader->requestTimeoutAtTimeLocked(when); 808 } 809 810 int32_t InputReader::ContextImpl::bumpGeneration() { 811 // lock is already held by the input loop 812 return mReader->bumpGenerationLocked(); 813 } 814 815 InputReaderPolicyInterface* InputReader::ContextImpl::getPolicy() { 816 return mReader->mPolicy.get(); 817 } 818 819 InputListenerInterface* InputReader::ContextImpl::getListener() { 820 return mReader->mQueuedListener.get(); 821 } 822 823 EventHubInterface* InputReader::ContextImpl::getEventHub() { 824 return mReader->mEventHub.get(); 825 } 826 827 828 // --- InputReaderThread --- 829 830 InputReaderThread::InputReaderThread(const sp<InputReaderInterface>& reader) : 831 Thread(/*canCallJava*/ true), mReader(reader) { 832 } 833 834 InputReaderThread::~InputReaderThread() { 835 } 836 837 bool InputReaderThread::threadLoop() { 838 mReader->loopOnce(); 839 return true; 840 } 841 842 843 // --- InputDevice --- 844 845 InputDevice::InputDevice(InputReaderContext* context, int32_t id, int32_t generation, 846 const InputDeviceIdentifier& identifier, uint32_t classes) : 847 mContext(context), mId(id), mGeneration(generation), 848 mIdentifier(identifier), mClasses(classes), 849 mSources(0), mIsExternal(false), mDropUntilNextSync(false) { 850 } 851 852 InputDevice::~InputDevice() { 853 size_t numMappers = mMappers.size(); 854 for (size_t i = 0; i < numMappers; i++) { 855 delete mMappers[i]; 856 } 857 mMappers.clear(); 858 } 859 860 void InputDevice::dump(String8& dump) { 861 InputDeviceInfo deviceInfo; 862 getDeviceInfo(& deviceInfo); 863 864 dump.appendFormat(INDENT "Device %d: %s\n", deviceInfo.getId(), 865 deviceInfo.getDisplayName().string()); 866 dump.appendFormat(INDENT2 "Generation: %d\n", mGeneration); 867 dump.appendFormat(INDENT2 "IsExternal: %s\n", toString(mIsExternal)); 868 dump.appendFormat(INDENT2 "Sources: 0x%08x\n", deviceInfo.getSources()); 869 dump.appendFormat(INDENT2 "KeyboardType: %d\n", deviceInfo.getKeyboardType()); 870 871 const Vector<InputDeviceInfo::MotionRange>& ranges = deviceInfo.getMotionRanges(); 872 if (!ranges.isEmpty()) { 873 dump.append(INDENT2 "Motion Ranges:\n"); 874 for (size_t i = 0; i < ranges.size(); i++) { 875 const InputDeviceInfo::MotionRange& range = ranges.itemAt(i); 876 const char* label = getAxisLabel(range.axis); 877 char name[32]; 878 if (label) { 879 strncpy(name, label, sizeof(name)); 880 name[sizeof(name) - 1] = '\0'; 881 } else { 882 snprintf(name, sizeof(name), "%d", range.axis); 883 } 884 dump.appendFormat(INDENT3 "%s: source=0x%08x, " 885 "min=%0.3f, max=%0.3f, flat=%0.3f, fuzz=%0.3f, resolution=%0.3f\n", 886 name, range.source, range.min, range.max, range.flat, range.fuzz, 887 range.resolution); 888 } 889 } 890 891 size_t numMappers = mMappers.size(); 892 for (size_t i = 0; i < numMappers; i++) { 893 InputMapper* mapper = mMappers[i]; 894 mapper->dump(dump); 895 } 896 } 897 898 void InputDevice::addMapper(InputMapper* mapper) { 899 mMappers.add(mapper); 900 } 901 902 void InputDevice::configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes) { 903 mSources = 0; 904 905 if (!isIgnored()) { 906 if (!changes) { // first time only 907 mContext->getEventHub()->getConfiguration(mId, &mConfiguration); 908 } 909 910 if (!changes || (changes & InputReaderConfiguration::CHANGE_KEYBOARD_LAYOUTS)) { 911 if (!(mClasses & INPUT_DEVICE_CLASS_VIRTUAL)) { 912 sp<KeyCharacterMap> keyboardLayout = 913 mContext->getPolicy()->getKeyboardLayoutOverlay(mIdentifier.descriptor); 914 if (mContext->getEventHub()->setKeyboardLayoutOverlay(mId, keyboardLayout)) { 915 bumpGeneration(); 916 } 917 } 918 } 919 920 if (!changes || (changes & InputReaderConfiguration::CHANGE_DEVICE_ALIAS)) { 921 if (!(mClasses & INPUT_DEVICE_CLASS_VIRTUAL)) { 922 String8 alias = mContext->getPolicy()->getDeviceAlias(mIdentifier); 923 if (mAlias != alias) { 924 mAlias = alias; 925 bumpGeneration(); 926 } 927 } 928 } 929 930 size_t numMappers = mMappers.size(); 931 for (size_t i = 0; i < numMappers; i++) { 932 InputMapper* mapper = mMappers[i]; 933 mapper->configure(when, config, changes); 934 mSources |= mapper->getSources(); 935 } 936 } 937 } 938 939 void InputDevice::reset(nsecs_t when) { 940 size_t numMappers = mMappers.size(); 941 for (size_t i = 0; i < numMappers; i++) { 942 InputMapper* mapper = mMappers[i]; 943 mapper->reset(when); 944 } 945 946 mContext->updateGlobalMetaState(); 947 948 notifyReset(when); 949 } 950 951 void InputDevice::process(const RawEvent* rawEvents, size_t count) { 952 // Process all of the events in order for each mapper. 953 // We cannot simply ask each mapper to process them in bulk because mappers may 954 // have side-effects that must be interleaved. For example, joystick movement events and 955 // gamepad button presses are handled by different mappers but they should be dispatched 956 // in the order received. 957 size_t numMappers = mMappers.size(); 958 for (const RawEvent* rawEvent = rawEvents; count--; rawEvent++) { 959 #if DEBUG_RAW_EVENTS 960 ALOGD("Input event: device=%d type=0x%04x code=0x%04x value=0x%08x when=%lld", 961 rawEvent->deviceId, rawEvent->type, rawEvent->code, rawEvent->value, 962 rawEvent->when); 963 #endif 964 965 if (mDropUntilNextSync) { 966 if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) { 967 mDropUntilNextSync = false; 968 #if DEBUG_RAW_EVENTS 969 ALOGD("Recovered from input event buffer overrun."); 970 #endif 971 } else { 972 #if DEBUG_RAW_EVENTS 973 ALOGD("Dropped input event while waiting for next input sync."); 974 #endif 975 } 976 } else if (rawEvent->type == EV_SYN && rawEvent->code == SYN_DROPPED) { 977 ALOGI("Detected input event buffer overrun for device %s.", getName().string()); 978 mDropUntilNextSync = true; 979 reset(rawEvent->when); 980 } else { 981 for (size_t i = 0; i < numMappers; i++) { 982 InputMapper* mapper = mMappers[i]; 983 mapper->process(rawEvent); 984 } 985 } 986 } 987 } 988 989 void InputDevice::timeoutExpired(nsecs_t when) { 990 size_t numMappers = mMappers.size(); 991 for (size_t i = 0; i < numMappers; i++) { 992 InputMapper* mapper = mMappers[i]; 993 mapper->timeoutExpired(when); 994 } 995 } 996 997 void InputDevice::getDeviceInfo(InputDeviceInfo* outDeviceInfo) { 998 outDeviceInfo->initialize(mId, mGeneration, mIdentifier, mAlias, mIsExternal); 999 1000 size_t numMappers = mMappers.size(); 1001 for (size_t i = 0; i < numMappers; i++) { 1002 InputMapper* mapper = mMappers[i]; 1003 mapper->populateDeviceInfo(outDeviceInfo); 1004 } 1005 } 1006 1007 int32_t InputDevice::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) { 1008 return getState(sourceMask, keyCode, & InputMapper::getKeyCodeState); 1009 } 1010 1011 int32_t InputDevice::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { 1012 return getState(sourceMask, scanCode, & InputMapper::getScanCodeState); 1013 } 1014 1015 int32_t InputDevice::getSwitchState(uint32_t sourceMask, int32_t switchCode) { 1016 return getState(sourceMask, switchCode, & InputMapper::getSwitchState); 1017 } 1018 1019 int32_t InputDevice::getState(uint32_t sourceMask, int32_t code, GetStateFunc getStateFunc) { 1020 int32_t result = AKEY_STATE_UNKNOWN; 1021 size_t numMappers = mMappers.size(); 1022 for (size_t i = 0; i < numMappers; i++) { 1023 InputMapper* mapper = mMappers[i]; 1024 if (sourcesMatchMask(mapper->getSources(), sourceMask)) { 1025 // If any mapper reports AKEY_STATE_DOWN or AKEY_STATE_VIRTUAL, return that 1026 // value. Otherwise, return AKEY_STATE_UP as long as one mapper reports it. 1027 int32_t currentResult = (mapper->*getStateFunc)(sourceMask, code); 1028 if (currentResult >= AKEY_STATE_DOWN) { 1029 return currentResult; 1030 } else if (currentResult == AKEY_STATE_UP) { 1031 result = currentResult; 1032 } 1033 } 1034 } 1035 return result; 1036 } 1037 1038 bool InputDevice::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, 1039 const int32_t* keyCodes, uint8_t* outFlags) { 1040 bool result = false; 1041 size_t numMappers = mMappers.size(); 1042 for (size_t i = 0; i < numMappers; i++) { 1043 InputMapper* mapper = mMappers[i]; 1044 if (sourcesMatchMask(mapper->getSources(), sourceMask)) { 1045 result |= mapper->markSupportedKeyCodes(sourceMask, numCodes, keyCodes, outFlags); 1046 } 1047 } 1048 return result; 1049 } 1050 1051 void InputDevice::vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, 1052 int32_t token) { 1053 size_t numMappers = mMappers.size(); 1054 for (size_t i = 0; i < numMappers; i++) { 1055 InputMapper* mapper = mMappers[i]; 1056 mapper->vibrate(pattern, patternSize, repeat, token); 1057 } 1058 } 1059 1060 void InputDevice::cancelVibrate(int32_t token) { 1061 size_t numMappers = mMappers.size(); 1062 for (size_t i = 0; i < numMappers; i++) { 1063 InputMapper* mapper = mMappers[i]; 1064 mapper->cancelVibrate(token); 1065 } 1066 } 1067 1068 int32_t InputDevice::getMetaState() { 1069 int32_t result = 0; 1070 size_t numMappers = mMappers.size(); 1071 for (size_t i = 0; i < numMappers; i++) { 1072 InputMapper* mapper = mMappers[i]; 1073 result |= mapper->getMetaState(); 1074 } 1075 return result; 1076 } 1077 1078 void InputDevice::fadePointer() { 1079 size_t numMappers = mMappers.size(); 1080 for (size_t i = 0; i < numMappers; i++) { 1081 InputMapper* mapper = mMappers[i]; 1082 mapper->fadePointer(); 1083 } 1084 } 1085 1086 void InputDevice::bumpGeneration() { 1087 mGeneration = mContext->bumpGeneration(); 1088 } 1089 1090 void InputDevice::notifyReset(nsecs_t when) { 1091 NotifyDeviceResetArgs args(when, mId); 1092 mContext->getListener()->notifyDeviceReset(&args); 1093 } 1094 1095 1096 // --- CursorButtonAccumulator --- 1097 1098 CursorButtonAccumulator::CursorButtonAccumulator() { 1099 clearButtons(); 1100 } 1101 1102 void CursorButtonAccumulator::reset(InputDevice* device) { 1103 mBtnLeft = device->isKeyPressed(BTN_LEFT); 1104 mBtnRight = device->isKeyPressed(BTN_RIGHT); 1105 mBtnMiddle = device->isKeyPressed(BTN_MIDDLE); 1106 mBtnBack = device->isKeyPressed(BTN_BACK); 1107 mBtnSide = device->isKeyPressed(BTN_SIDE); 1108 mBtnForward = device->isKeyPressed(BTN_FORWARD); 1109 mBtnExtra = device->isKeyPressed(BTN_EXTRA); 1110 mBtnTask = device->isKeyPressed(BTN_TASK); 1111 } 1112 1113 void CursorButtonAccumulator::clearButtons() { 1114 mBtnLeft = 0; 1115 mBtnRight = 0; 1116 mBtnMiddle = 0; 1117 mBtnBack = 0; 1118 mBtnSide = 0; 1119 mBtnForward = 0; 1120 mBtnExtra = 0; 1121 mBtnTask = 0; 1122 } 1123 1124 void CursorButtonAccumulator::process(const RawEvent* rawEvent) { 1125 if (rawEvent->type == EV_KEY) { 1126 switch (rawEvent->code) { 1127 case BTN_LEFT: 1128 mBtnLeft = rawEvent->value; 1129 break; 1130 case BTN_RIGHT: 1131 mBtnRight = rawEvent->value; 1132 break; 1133 case BTN_MIDDLE: 1134 mBtnMiddle = rawEvent->value; 1135 break; 1136 case BTN_BACK: 1137 mBtnBack = rawEvent->value; 1138 break; 1139 case BTN_SIDE: 1140 mBtnSide = rawEvent->value; 1141 break; 1142 case BTN_FORWARD: 1143 mBtnForward = rawEvent->value; 1144 break; 1145 case BTN_EXTRA: 1146 mBtnExtra = rawEvent->value; 1147 break; 1148 case BTN_TASK: 1149 mBtnTask = rawEvent->value; 1150 break; 1151 } 1152 } 1153 } 1154 1155 uint32_t CursorButtonAccumulator::getButtonState() const { 1156 uint32_t result = 0; 1157 if (mBtnLeft) { 1158 result |= AMOTION_EVENT_BUTTON_PRIMARY; 1159 } 1160 if (mBtnRight) { 1161 result |= AMOTION_EVENT_BUTTON_SECONDARY; 1162 } 1163 if (mBtnMiddle) { 1164 result |= AMOTION_EVENT_BUTTON_TERTIARY; 1165 } 1166 if (mBtnBack || mBtnSide) { 1167 result |= AMOTION_EVENT_BUTTON_BACK; 1168 } 1169 if (mBtnForward || mBtnExtra) { 1170 result |= AMOTION_EVENT_BUTTON_FORWARD; 1171 } 1172 return result; 1173 } 1174 1175 1176 // --- CursorMotionAccumulator --- 1177 1178 CursorMotionAccumulator::CursorMotionAccumulator() { 1179 clearRelativeAxes(); 1180 } 1181 1182 void CursorMotionAccumulator::reset(InputDevice* device) { 1183 clearRelativeAxes(); 1184 } 1185 1186 void CursorMotionAccumulator::clearRelativeAxes() { 1187 mRelX = 0; 1188 mRelY = 0; 1189 } 1190 1191 void CursorMotionAccumulator::process(const RawEvent* rawEvent) { 1192 if (rawEvent->type == EV_REL) { 1193 switch (rawEvent->code) { 1194 case REL_X: 1195 mRelX = rawEvent->value; 1196 break; 1197 case REL_Y: 1198 mRelY = rawEvent->value; 1199 break; 1200 } 1201 } 1202 } 1203 1204 void CursorMotionAccumulator::finishSync() { 1205 clearRelativeAxes(); 1206 } 1207 1208 1209 // --- CursorScrollAccumulator --- 1210 1211 CursorScrollAccumulator::CursorScrollAccumulator() : 1212 mHaveRelWheel(false), mHaveRelHWheel(false) { 1213 clearRelativeAxes(); 1214 } 1215 1216 void CursorScrollAccumulator::configure(InputDevice* device) { 1217 mHaveRelWheel = device->getEventHub()->hasRelativeAxis(device->getId(), REL_WHEEL); 1218 mHaveRelHWheel = device->getEventHub()->hasRelativeAxis(device->getId(), REL_HWHEEL); 1219 } 1220 1221 void CursorScrollAccumulator::reset(InputDevice* device) { 1222 clearRelativeAxes(); 1223 } 1224 1225 void CursorScrollAccumulator::clearRelativeAxes() { 1226 mRelWheel = 0; 1227 mRelHWheel = 0; 1228 } 1229 1230 void CursorScrollAccumulator::process(const RawEvent* rawEvent) { 1231 if (rawEvent->type == EV_REL) { 1232 switch (rawEvent->code) { 1233 case REL_WHEEL: 1234 mRelWheel = rawEvent->value; 1235 break; 1236 case REL_HWHEEL: 1237 mRelHWheel = rawEvent->value; 1238 break; 1239 } 1240 } 1241 } 1242 1243 void CursorScrollAccumulator::finishSync() { 1244 clearRelativeAxes(); 1245 } 1246 1247 1248 // --- TouchButtonAccumulator --- 1249 1250 TouchButtonAccumulator::TouchButtonAccumulator() : 1251 mHaveBtnTouch(false), mHaveStylus(false) { 1252 clearButtons(); 1253 } 1254 1255 void TouchButtonAccumulator::configure(InputDevice* device) { 1256 mHaveBtnTouch = device->hasKey(BTN_TOUCH); 1257 mHaveStylus = device->hasKey(BTN_TOOL_PEN) 1258 || device->hasKey(BTN_TOOL_RUBBER) 1259 || device->hasKey(BTN_TOOL_BRUSH) 1260 || device->hasKey(BTN_TOOL_PENCIL) 1261 || device->hasKey(BTN_TOOL_AIRBRUSH); 1262 } 1263 1264 void TouchButtonAccumulator::reset(InputDevice* device) { 1265 mBtnTouch = device->isKeyPressed(BTN_TOUCH); 1266 mBtnStylus = device->isKeyPressed(BTN_STYLUS); 1267 mBtnStylus2 = device->isKeyPressed(BTN_STYLUS); 1268 mBtnToolFinger = device->isKeyPressed(BTN_TOOL_FINGER); 1269 mBtnToolPen = device->isKeyPressed(BTN_TOOL_PEN); 1270 mBtnToolRubber = device->isKeyPressed(BTN_TOOL_RUBBER); 1271 mBtnToolBrush = device->isKeyPressed(BTN_TOOL_BRUSH); 1272 mBtnToolPencil = device->isKeyPressed(BTN_TOOL_PENCIL); 1273 mBtnToolAirbrush = device->isKeyPressed(BTN_TOOL_AIRBRUSH); 1274 mBtnToolMouse = device->isKeyPressed(BTN_TOOL_MOUSE); 1275 mBtnToolLens = device->isKeyPressed(BTN_TOOL_LENS); 1276 mBtnToolDoubleTap = device->isKeyPressed(BTN_TOOL_DOUBLETAP); 1277 mBtnToolTripleTap = device->isKeyPressed(BTN_TOOL_TRIPLETAP); 1278 mBtnToolQuadTap = device->isKeyPressed(BTN_TOOL_QUADTAP); 1279 } 1280 1281 void TouchButtonAccumulator::clearButtons() { 1282 mBtnTouch = 0; 1283 mBtnStylus = 0; 1284 mBtnStylus2 = 0; 1285 mBtnToolFinger = 0; 1286 mBtnToolPen = 0; 1287 mBtnToolRubber = 0; 1288 mBtnToolBrush = 0; 1289 mBtnToolPencil = 0; 1290 mBtnToolAirbrush = 0; 1291 mBtnToolMouse = 0; 1292 mBtnToolLens = 0; 1293 mBtnToolDoubleTap = 0; 1294 mBtnToolTripleTap = 0; 1295 mBtnToolQuadTap = 0; 1296 } 1297 1298 void TouchButtonAccumulator::process(const RawEvent* rawEvent) { 1299 if (rawEvent->type == EV_KEY) { 1300 switch (rawEvent->code) { 1301 case BTN_TOUCH: 1302 mBtnTouch = rawEvent->value; 1303 break; 1304 case BTN_STYLUS: 1305 mBtnStylus = rawEvent->value; 1306 break; 1307 case BTN_STYLUS2: 1308 mBtnStylus2 = rawEvent->value; 1309 break; 1310 case BTN_TOOL_FINGER: 1311 mBtnToolFinger = rawEvent->value; 1312 break; 1313 case BTN_TOOL_PEN: 1314 mBtnToolPen = rawEvent->value; 1315 break; 1316 case BTN_TOOL_RUBBER: 1317 mBtnToolRubber = rawEvent->value; 1318 break; 1319 case BTN_TOOL_BRUSH: 1320 mBtnToolBrush = rawEvent->value; 1321 break; 1322 case BTN_TOOL_PENCIL: 1323 mBtnToolPencil = rawEvent->value; 1324 break; 1325 case BTN_TOOL_AIRBRUSH: 1326 mBtnToolAirbrush = rawEvent->value; 1327 break; 1328 case BTN_TOOL_MOUSE: 1329 mBtnToolMouse = rawEvent->value; 1330 break; 1331 case BTN_TOOL_LENS: 1332 mBtnToolLens = rawEvent->value; 1333 break; 1334 case BTN_TOOL_DOUBLETAP: 1335 mBtnToolDoubleTap = rawEvent->value; 1336 break; 1337 case BTN_TOOL_TRIPLETAP: 1338 mBtnToolTripleTap = rawEvent->value; 1339 break; 1340 case BTN_TOOL_QUADTAP: 1341 mBtnToolQuadTap = rawEvent->value; 1342 break; 1343 } 1344 } 1345 } 1346 1347 uint32_t TouchButtonAccumulator::getButtonState() const { 1348 uint32_t result = 0; 1349 if (mBtnStylus) { 1350 result |= AMOTION_EVENT_BUTTON_SECONDARY; 1351 } 1352 if (mBtnStylus2) { 1353 result |= AMOTION_EVENT_BUTTON_TERTIARY; 1354 } 1355 return result; 1356 } 1357 1358 int32_t TouchButtonAccumulator::getToolType() const { 1359 if (mBtnToolMouse || mBtnToolLens) { 1360 return AMOTION_EVENT_TOOL_TYPE_MOUSE; 1361 } 1362 if (mBtnToolRubber) { 1363 return AMOTION_EVENT_TOOL_TYPE_ERASER; 1364 } 1365 if (mBtnToolPen || mBtnToolBrush || mBtnToolPencil || mBtnToolAirbrush) { 1366 return AMOTION_EVENT_TOOL_TYPE_STYLUS; 1367 } 1368 if (mBtnToolFinger || mBtnToolDoubleTap || mBtnToolTripleTap || mBtnToolQuadTap) { 1369 return AMOTION_EVENT_TOOL_TYPE_FINGER; 1370 } 1371 return AMOTION_EVENT_TOOL_TYPE_UNKNOWN; 1372 } 1373 1374 bool TouchButtonAccumulator::isToolActive() const { 1375 return mBtnTouch || mBtnToolFinger || mBtnToolPen || mBtnToolRubber 1376 || mBtnToolBrush || mBtnToolPencil || mBtnToolAirbrush 1377 || mBtnToolMouse || mBtnToolLens 1378 || mBtnToolDoubleTap || mBtnToolTripleTap || mBtnToolQuadTap; 1379 } 1380 1381 bool TouchButtonAccumulator::isHovering() const { 1382 return mHaveBtnTouch && !mBtnTouch; 1383 } 1384 1385 bool TouchButtonAccumulator::hasStylus() const { 1386 return mHaveStylus; 1387 } 1388 1389 1390 // --- RawPointerAxes --- 1391 1392 RawPointerAxes::RawPointerAxes() { 1393 clear(); 1394 } 1395 1396 void RawPointerAxes::clear() { 1397 x.clear(); 1398 y.clear(); 1399 pressure.clear(); 1400 touchMajor.clear(); 1401 touchMinor.clear(); 1402 toolMajor.clear(); 1403 toolMinor.clear(); 1404 orientation.clear(); 1405 distance.clear(); 1406 tiltX.clear(); 1407 tiltY.clear(); 1408 trackingId.clear(); 1409 slot.clear(); 1410 } 1411 1412 1413 // --- RawPointerData --- 1414 1415 RawPointerData::RawPointerData() { 1416 clear(); 1417 } 1418 1419 void RawPointerData::clear() { 1420 pointerCount = 0; 1421 clearIdBits(); 1422 } 1423 1424 void RawPointerData::copyFrom(const RawPointerData& other) { 1425 pointerCount = other.pointerCount; 1426 hoveringIdBits = other.hoveringIdBits; 1427 touchingIdBits = other.touchingIdBits; 1428 1429 for (uint32_t i = 0; i < pointerCount; i++) { 1430 pointers[i] = other.pointers[i]; 1431 1432 int id = pointers[i].id; 1433 idToIndex[id] = other.idToIndex[id]; 1434 } 1435 } 1436 1437 void RawPointerData::getCentroidOfTouchingPointers(float* outX, float* outY) const { 1438 float x = 0, y = 0; 1439 uint32_t count = touchingIdBits.count(); 1440 if (count) { 1441 for (BitSet32 idBits(touchingIdBits); !idBits.isEmpty(); ) { 1442 uint32_t id = idBits.clearFirstMarkedBit(); 1443 const Pointer& pointer = pointerForId(id); 1444 x += pointer.x; 1445 y += pointer.y; 1446 } 1447 x /= count; 1448 y /= count; 1449 } 1450 *outX = x; 1451 *outY = y; 1452 } 1453 1454 1455 // --- CookedPointerData --- 1456 1457 CookedPointerData::CookedPointerData() { 1458 clear(); 1459 } 1460 1461 void CookedPointerData::clear() { 1462 pointerCount = 0; 1463 hoveringIdBits.clear(); 1464 touchingIdBits.clear(); 1465 } 1466 1467 void CookedPointerData::copyFrom(const CookedPointerData& other) { 1468 pointerCount = other.pointerCount; 1469 hoveringIdBits = other.hoveringIdBits; 1470 touchingIdBits = other.touchingIdBits; 1471 1472 for (uint32_t i = 0; i < pointerCount; i++) { 1473 pointerProperties[i].copyFrom(other.pointerProperties[i]); 1474 pointerCoords[i].copyFrom(other.pointerCoords[i]); 1475 1476 int id = pointerProperties[i].id; 1477 idToIndex[id] = other.idToIndex[id]; 1478 } 1479 } 1480 1481 1482 // --- SingleTouchMotionAccumulator --- 1483 1484 SingleTouchMotionAccumulator::SingleTouchMotionAccumulator() { 1485 clearAbsoluteAxes(); 1486 } 1487 1488 void SingleTouchMotionAccumulator::reset(InputDevice* device) { 1489 mAbsX = device->getAbsoluteAxisValue(ABS_X); 1490 mAbsY = device->getAbsoluteAxisValue(ABS_Y); 1491 mAbsPressure = device->getAbsoluteAxisValue(ABS_PRESSURE); 1492 mAbsToolWidth = device->getAbsoluteAxisValue(ABS_TOOL_WIDTH); 1493 mAbsDistance = device->getAbsoluteAxisValue(ABS_DISTANCE); 1494 mAbsTiltX = device->getAbsoluteAxisValue(ABS_TILT_X); 1495 mAbsTiltY = device->getAbsoluteAxisValue(ABS_TILT_Y); 1496 } 1497 1498 void SingleTouchMotionAccumulator::clearAbsoluteAxes() { 1499 mAbsX = 0; 1500 mAbsY = 0; 1501 mAbsPressure = 0; 1502 mAbsToolWidth = 0; 1503 mAbsDistance = 0; 1504 mAbsTiltX = 0; 1505 mAbsTiltY = 0; 1506 } 1507 1508 void SingleTouchMotionAccumulator::process(const RawEvent* rawEvent) { 1509 if (rawEvent->type == EV_ABS) { 1510 switch (rawEvent->code) { 1511 case ABS_X: 1512 mAbsX = rawEvent->value; 1513 break; 1514 case ABS_Y: 1515 mAbsY = rawEvent->value; 1516 break; 1517 case ABS_PRESSURE: 1518 mAbsPressure = rawEvent->value; 1519 break; 1520 case ABS_TOOL_WIDTH: 1521 mAbsToolWidth = rawEvent->value; 1522 break; 1523 case ABS_DISTANCE: 1524 mAbsDistance = rawEvent->value; 1525 break; 1526 case ABS_TILT_X: 1527 mAbsTiltX = rawEvent->value; 1528 break; 1529 case ABS_TILT_Y: 1530 mAbsTiltY = rawEvent->value; 1531 break; 1532 } 1533 } 1534 } 1535 1536 1537 // --- MultiTouchMotionAccumulator --- 1538 1539 MultiTouchMotionAccumulator::MultiTouchMotionAccumulator() : 1540 mCurrentSlot(-1), mSlots(NULL), mSlotCount(0), mUsingSlotsProtocol(false), 1541 mHaveStylus(false) { 1542 } 1543 1544 MultiTouchMotionAccumulator::~MultiTouchMotionAccumulator() { 1545 delete[] mSlots; 1546 } 1547 1548 void MultiTouchMotionAccumulator::configure(InputDevice* device, 1549 size_t slotCount, bool usingSlotsProtocol) { 1550 mSlotCount = slotCount; 1551 mUsingSlotsProtocol = usingSlotsProtocol; 1552 mHaveStylus = device->hasAbsoluteAxis(ABS_MT_TOOL_TYPE); 1553 1554 delete[] mSlots; 1555 mSlots = new Slot[slotCount]; 1556 } 1557 1558 void MultiTouchMotionAccumulator::reset(InputDevice* device) { 1559 // Unfortunately there is no way to read the initial contents of the slots. 1560 // So when we reset the accumulator, we must assume they are all zeroes. 1561 if (mUsingSlotsProtocol) { 1562 // Query the driver for the current slot index and use it as the initial slot 1563 // before we start reading events from the device. It is possible that the 1564 // current slot index will not be the same as it was when the first event was 1565 // written into the evdev buffer, which means the input mapper could start 1566 // out of sync with the initial state of the events in the evdev buffer. 1567 // In the extremely unlikely case that this happens, the data from 1568 // two slots will be confused until the next ABS_MT_SLOT event is received. 1569 // This can cause the touch point to "jump", but at least there will be 1570 // no stuck touches. 1571 int32_t initialSlot; 1572 status_t status = device->getEventHub()->getAbsoluteAxisValue(device->getId(), 1573 ABS_MT_SLOT, &initialSlot); 1574 if (status) { 1575 ALOGD("Could not retrieve current multitouch slot index. status=%d", status); 1576 initialSlot = -1; 1577 } 1578 clearSlots(initialSlot); 1579 } else { 1580 clearSlots(-1); 1581 } 1582 } 1583 1584 void MultiTouchMotionAccumulator::clearSlots(int32_t initialSlot) { 1585 if (mSlots) { 1586 for (size_t i = 0; i < mSlotCount; i++) { 1587 mSlots[i].clear(); 1588 } 1589 } 1590 mCurrentSlot = initialSlot; 1591 } 1592 1593 void MultiTouchMotionAccumulator::process(const RawEvent* rawEvent) { 1594 if (rawEvent->type == EV_ABS) { 1595 bool newSlot = false; 1596 if (mUsingSlotsProtocol) { 1597 if (rawEvent->code == ABS_MT_SLOT) { 1598 mCurrentSlot = rawEvent->value; 1599 newSlot = true; 1600 } 1601 } else if (mCurrentSlot < 0) { 1602 mCurrentSlot = 0; 1603 } 1604 1605 if (mCurrentSlot < 0 || size_t(mCurrentSlot) >= mSlotCount) { 1606 #if DEBUG_POINTERS 1607 if (newSlot) { 1608 ALOGW("MultiTouch device emitted invalid slot index %d but it " 1609 "should be between 0 and %d; ignoring this slot.", 1610 mCurrentSlot, mSlotCount - 1); 1611 } 1612 #endif 1613 } else { 1614 Slot* slot = &mSlots[mCurrentSlot]; 1615 1616 switch (rawEvent->code) { 1617 case ABS_MT_POSITION_X: 1618 slot->mInUse = true; 1619 slot->mAbsMTPositionX = rawEvent->value; 1620 break; 1621 case ABS_MT_POSITION_Y: 1622 slot->mInUse = true; 1623 slot->mAbsMTPositionY = rawEvent->value; 1624 break; 1625 case ABS_MT_TOUCH_MAJOR: 1626 slot->mInUse = true; 1627 slot->mAbsMTTouchMajor = rawEvent->value; 1628 break; 1629 case ABS_MT_TOUCH_MINOR: 1630 slot->mInUse = true; 1631 slot->mAbsMTTouchMinor = rawEvent->value; 1632 slot->mHaveAbsMTTouchMinor = true; 1633 break; 1634 case ABS_MT_WIDTH_MAJOR: 1635 slot->mInUse = true; 1636 slot->mAbsMTWidthMajor = rawEvent->value; 1637 break; 1638 case ABS_MT_WIDTH_MINOR: 1639 slot->mInUse = true; 1640 slot->mAbsMTWidthMinor = rawEvent->value; 1641 slot->mHaveAbsMTWidthMinor = true; 1642 break; 1643 case ABS_MT_ORIENTATION: 1644 slot->mInUse = true; 1645 slot->mAbsMTOrientation = rawEvent->value; 1646 break; 1647 case ABS_MT_TRACKING_ID: 1648 if (mUsingSlotsProtocol && rawEvent->value < 0) { 1649 // The slot is no longer in use but it retains its previous contents, 1650 // which may be reused for subsequent touches. 1651 slot->mInUse = false; 1652 } else { 1653 slot->mInUse = true; 1654 slot->mAbsMTTrackingId = rawEvent->value; 1655 } 1656 break; 1657 case ABS_MT_PRESSURE: 1658 slot->mInUse = true; 1659 slot->mAbsMTPressure = rawEvent->value; 1660 break; 1661 case ABS_MT_DISTANCE: 1662 slot->mInUse = true; 1663 slot->mAbsMTDistance = rawEvent->value; 1664 break; 1665 case ABS_MT_TOOL_TYPE: 1666 slot->mInUse = true; 1667 slot->mAbsMTToolType = rawEvent->value; 1668 slot->mHaveAbsMTToolType = true; 1669 break; 1670 } 1671 } 1672 } else if (rawEvent->type == EV_SYN && rawEvent->code == SYN_MT_REPORT) { 1673 // MultiTouch Sync: The driver has returned all data for *one* of the pointers. 1674 mCurrentSlot += 1; 1675 } 1676 } 1677 1678 void MultiTouchMotionAccumulator::finishSync() { 1679 if (!mUsingSlotsProtocol) { 1680 clearSlots(-1); 1681 } 1682 } 1683 1684 bool MultiTouchMotionAccumulator::hasStylus() const { 1685 return mHaveStylus; 1686 } 1687 1688 1689 // --- MultiTouchMotionAccumulator::Slot --- 1690 1691 MultiTouchMotionAccumulator::Slot::Slot() { 1692 clear(); 1693 } 1694 1695 void MultiTouchMotionAccumulator::Slot::clear() { 1696 mInUse = false; 1697 mHaveAbsMTTouchMinor = false; 1698 mHaveAbsMTWidthMinor = false; 1699 mHaveAbsMTToolType = false; 1700 mAbsMTPositionX = 0; 1701 mAbsMTPositionY = 0; 1702 mAbsMTTouchMajor = 0; 1703 mAbsMTTouchMinor = 0; 1704 mAbsMTWidthMajor = 0; 1705 mAbsMTWidthMinor = 0; 1706 mAbsMTOrientation = 0; 1707 mAbsMTTrackingId = -1; 1708 mAbsMTPressure = 0; 1709 mAbsMTDistance = 0; 1710 mAbsMTToolType = 0; 1711 } 1712 1713 int32_t MultiTouchMotionAccumulator::Slot::getToolType() const { 1714 if (mHaveAbsMTToolType) { 1715 switch (mAbsMTToolType) { 1716 case MT_TOOL_FINGER: 1717 return AMOTION_EVENT_TOOL_TYPE_FINGER; 1718 case MT_TOOL_PEN: 1719 return AMOTION_EVENT_TOOL_TYPE_STYLUS; 1720 } 1721 } 1722 return AMOTION_EVENT_TOOL_TYPE_UNKNOWN; 1723 } 1724 1725 1726 // --- InputMapper --- 1727 1728 InputMapper::InputMapper(InputDevice* device) : 1729 mDevice(device), mContext(device->getContext()) { 1730 } 1731 1732 InputMapper::~InputMapper() { 1733 } 1734 1735 void InputMapper::populateDeviceInfo(InputDeviceInfo* info) { 1736 info->addSource(getSources()); 1737 } 1738 1739 void InputMapper::dump(String8& dump) { 1740 } 1741 1742 void InputMapper::configure(nsecs_t when, 1743 const InputReaderConfiguration* config, uint32_t changes) { 1744 } 1745 1746 void InputMapper::reset(nsecs_t when) { 1747 } 1748 1749 void InputMapper::timeoutExpired(nsecs_t when) { 1750 } 1751 1752 int32_t InputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) { 1753 return AKEY_STATE_UNKNOWN; 1754 } 1755 1756 int32_t InputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { 1757 return AKEY_STATE_UNKNOWN; 1758 } 1759 1760 int32_t InputMapper::getSwitchState(uint32_t sourceMask, int32_t switchCode) { 1761 return AKEY_STATE_UNKNOWN; 1762 } 1763 1764 bool InputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, 1765 const int32_t* keyCodes, uint8_t* outFlags) { 1766 return false; 1767 } 1768 1769 void InputMapper::vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, 1770 int32_t token) { 1771 } 1772 1773 void InputMapper::cancelVibrate(int32_t token) { 1774 } 1775 1776 int32_t InputMapper::getMetaState() { 1777 return 0; 1778 } 1779 1780 void InputMapper::fadePointer() { 1781 } 1782 1783 status_t InputMapper::getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo) { 1784 return getEventHub()->getAbsoluteAxisInfo(getDeviceId(), axis, axisInfo); 1785 } 1786 1787 void InputMapper::bumpGeneration() { 1788 mDevice->bumpGeneration(); 1789 } 1790 1791 void InputMapper::dumpRawAbsoluteAxisInfo(String8& dump, 1792 const RawAbsoluteAxisInfo& axis, const char* name) { 1793 if (axis.valid) { 1794 dump.appendFormat(INDENT4 "%s: min=%d, max=%d, flat=%d, fuzz=%d, resolution=%d\n", 1795 name, axis.minValue, axis.maxValue, axis.flat, axis.fuzz, axis.resolution); 1796 } else { 1797 dump.appendFormat(INDENT4 "%s: unknown range\n", name); 1798 } 1799 } 1800 1801 1802 // --- SwitchInputMapper --- 1803 1804 SwitchInputMapper::SwitchInputMapper(InputDevice* device) : 1805 InputMapper(device), mUpdatedSwitchValues(0), mUpdatedSwitchMask(0) { 1806 } 1807 1808 SwitchInputMapper::~SwitchInputMapper() { 1809 } 1810 1811 uint32_t SwitchInputMapper::getSources() { 1812 return AINPUT_SOURCE_SWITCH; 1813 } 1814 1815 void SwitchInputMapper::process(const RawEvent* rawEvent) { 1816 switch (rawEvent->type) { 1817 case EV_SW: 1818 processSwitch(rawEvent->code, rawEvent->value); 1819 break; 1820 1821 case EV_SYN: 1822 if (rawEvent->code == SYN_REPORT) { 1823 sync(rawEvent->when); 1824 } 1825 } 1826 } 1827 1828 void SwitchInputMapper::processSwitch(int32_t switchCode, int32_t switchValue) { 1829 if (switchCode >= 0 && switchCode < 32) { 1830 if (switchValue) { 1831 mUpdatedSwitchValues |= 1 << switchCode; 1832 } 1833 mUpdatedSwitchMask |= 1 << switchCode; 1834 } 1835 } 1836 1837 void SwitchInputMapper::sync(nsecs_t when) { 1838 if (mUpdatedSwitchMask) { 1839 NotifySwitchArgs args(when, 0, mUpdatedSwitchValues, mUpdatedSwitchMask); 1840 getListener()->notifySwitch(&args); 1841 1842 mUpdatedSwitchValues = 0; 1843 mUpdatedSwitchMask = 0; 1844 } 1845 } 1846 1847 int32_t SwitchInputMapper::getSwitchState(uint32_t sourceMask, int32_t switchCode) { 1848 return getEventHub()->getSwitchState(getDeviceId(), switchCode); 1849 } 1850 1851 1852 // --- VibratorInputMapper --- 1853 1854 VibratorInputMapper::VibratorInputMapper(InputDevice* device) : 1855 InputMapper(device), mVibrating(false) { 1856 } 1857 1858 VibratorInputMapper::~VibratorInputMapper() { 1859 } 1860 1861 uint32_t VibratorInputMapper::getSources() { 1862 return 0; 1863 } 1864 1865 void VibratorInputMapper::populateDeviceInfo(InputDeviceInfo* info) { 1866 InputMapper::populateDeviceInfo(info); 1867 1868 info->setVibrator(true); 1869 } 1870 1871 void VibratorInputMapper::process(const RawEvent* rawEvent) { 1872 // TODO: Handle FF_STATUS, although it does not seem to be widely supported. 1873 } 1874 1875 void VibratorInputMapper::vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, 1876 int32_t token) { 1877 #if DEBUG_VIBRATOR 1878 String8 patternStr; 1879 for (size_t i = 0; i < patternSize; i++) { 1880 if (i != 0) { 1881 patternStr.append(", "); 1882 } 1883 patternStr.appendFormat("%lld", pattern[i]); 1884 } 1885 ALOGD("vibrate: deviceId=%d, pattern=[%s], repeat=%ld, token=%d", 1886 getDeviceId(), patternStr.string(), repeat, token); 1887 #endif 1888 1889 mVibrating = true; 1890 memcpy(mPattern, pattern, patternSize * sizeof(nsecs_t)); 1891 mPatternSize = patternSize; 1892 mRepeat = repeat; 1893 mToken = token; 1894 mIndex = -1; 1895 1896 nextStep(); 1897 } 1898 1899 void VibratorInputMapper::cancelVibrate(int32_t token) { 1900 #if DEBUG_VIBRATOR 1901 ALOGD("cancelVibrate: deviceId=%d, token=%d", getDeviceId(), token); 1902 #endif 1903 1904 if (mVibrating && mToken == token) { 1905 stopVibrating(); 1906 } 1907 } 1908 1909 void VibratorInputMapper::timeoutExpired(nsecs_t when) { 1910 if (mVibrating) { 1911 if (when >= mNextStepTime) { 1912 nextStep(); 1913 } else { 1914 getContext()->requestTimeoutAtTime(mNextStepTime); 1915 } 1916 } 1917 } 1918 1919 void VibratorInputMapper::nextStep() { 1920 mIndex += 1; 1921 if (size_t(mIndex) >= mPatternSize) { 1922 if (mRepeat < 0) { 1923 // We are done. 1924 stopVibrating(); 1925 return; 1926 } 1927 mIndex = mRepeat; 1928 } 1929 1930 bool vibratorOn = mIndex & 1; 1931 nsecs_t duration = mPattern[mIndex]; 1932 if (vibratorOn) { 1933 #if DEBUG_VIBRATOR 1934 ALOGD("nextStep: sending vibrate deviceId=%d, duration=%lld", 1935 getDeviceId(), duration); 1936 #endif 1937 getEventHub()->vibrate(getDeviceId(), duration); 1938 } else { 1939 #if DEBUG_VIBRATOR 1940 ALOGD("nextStep: sending cancel vibrate deviceId=%d", getDeviceId()); 1941 #endif 1942 getEventHub()->cancelVibrate(getDeviceId()); 1943 } 1944 nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); 1945 mNextStepTime = now + duration; 1946 getContext()->requestTimeoutAtTime(mNextStepTime); 1947 #if DEBUG_VIBRATOR 1948 ALOGD("nextStep: scheduled timeout in %0.3fms", duration * 0.000001f); 1949 #endif 1950 } 1951 1952 void VibratorInputMapper::stopVibrating() { 1953 mVibrating = false; 1954 #if DEBUG_VIBRATOR 1955 ALOGD("stopVibrating: sending cancel vibrate deviceId=%d", getDeviceId()); 1956 #endif 1957 getEventHub()->cancelVibrate(getDeviceId()); 1958 } 1959 1960 void VibratorInputMapper::dump(String8& dump) { 1961 dump.append(INDENT2 "Vibrator Input Mapper:\n"); 1962 dump.appendFormat(INDENT3 "Vibrating: %s\n", toString(mVibrating)); 1963 } 1964 1965 1966 // --- KeyboardInputMapper --- 1967 1968 KeyboardInputMapper::KeyboardInputMapper(InputDevice* device, 1969 uint32_t source, int32_t keyboardType) : 1970 InputMapper(device), mSource(source), 1971 mKeyboardType(keyboardType) { 1972 } 1973 1974 KeyboardInputMapper::~KeyboardInputMapper() { 1975 } 1976 1977 uint32_t KeyboardInputMapper::getSources() { 1978 return mSource; 1979 } 1980 1981 void KeyboardInputMapper::populateDeviceInfo(InputDeviceInfo* info) { 1982 InputMapper::populateDeviceInfo(info); 1983 1984 info->setKeyboardType(mKeyboardType); 1985 info->setKeyCharacterMap(getEventHub()->getKeyCharacterMap(getDeviceId())); 1986 } 1987 1988 void KeyboardInputMapper::dump(String8& dump) { 1989 dump.append(INDENT2 "Keyboard Input Mapper:\n"); 1990 dumpParameters(dump); 1991 dump.appendFormat(INDENT3 "KeyboardType: %d\n", mKeyboardType); 1992 dump.appendFormat(INDENT3 "Orientation: %d\n", mOrientation); 1993 dump.appendFormat(INDENT3 "KeyDowns: %d keys currently down\n", mKeyDowns.size()); 1994 dump.appendFormat(INDENT3 "MetaState: 0x%0x\n", mMetaState); 1995 dump.appendFormat(INDENT3 "DownTime: %lld\n", mDownTime); 1996 } 1997 1998 1999 void KeyboardInputMapper::configure(nsecs_t when, 2000 const InputReaderConfiguration* config, uint32_t changes) { 2001 InputMapper::configure(when, config, changes); 2002 2003 if (!changes) { // first time only 2004 // Configure basic parameters. 2005 configureParameters(); 2006 } 2007 2008 if (!changes || (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) { 2009 if (mParameters.orientationAware && mParameters.hasAssociatedDisplay) { 2010 DisplayViewport v; 2011 if (config->getDisplayInfo(false /*external*/, &v)) { 2012 mOrientation = v.orientation; 2013 } else { 2014 mOrientation = DISPLAY_ORIENTATION_0; 2015 } 2016 } else { 2017 mOrientation = DISPLAY_ORIENTATION_0; 2018 } 2019 } 2020 } 2021 2022 void KeyboardInputMapper::configureParameters() { 2023 mParameters.orientationAware = false; 2024 getDevice()->getConfiguration().tryGetProperty(String8("keyboard.orientationAware"), 2025 mParameters.orientationAware); 2026 2027 mParameters.hasAssociatedDisplay = false; 2028 if (mParameters.orientationAware) { 2029 mParameters.hasAssociatedDisplay = true; 2030 } 2031 } 2032 2033 void KeyboardInputMapper::dumpParameters(String8& dump) { 2034 dump.append(INDENT3 "Parameters:\n"); 2035 dump.appendFormat(INDENT4 "HasAssociatedDisplay: %s\n", 2036 toString(mParameters.hasAssociatedDisplay)); 2037 dump.appendFormat(INDENT4 "OrientationAware: %s\n", 2038 toString(mParameters.orientationAware)); 2039 } 2040 2041 void KeyboardInputMapper::reset(nsecs_t when) { 2042 mMetaState = AMETA_NONE; 2043 mDownTime = 0; 2044 mKeyDowns.clear(); 2045 mCurrentHidUsage = 0; 2046 2047 resetLedState(); 2048 2049 InputMapper::reset(when); 2050 } 2051 2052 void KeyboardInputMapper::process(const RawEvent* rawEvent) { 2053 switch (rawEvent->type) { 2054 case EV_KEY: { 2055 int32_t scanCode = rawEvent->code; 2056 int32_t usageCode = mCurrentHidUsage; 2057 mCurrentHidUsage = 0; 2058 2059 if (isKeyboardOrGamepadKey(scanCode)) { 2060 int32_t keyCode; 2061 uint32_t flags; 2062 if (getEventHub()->mapKey(getDeviceId(), scanCode, usageCode, &keyCode, &flags)) { 2063 keyCode = AKEYCODE_UNKNOWN; 2064 flags = 0; 2065 } 2066 processKey(rawEvent->when, rawEvent->value != 0, keyCode, scanCode, flags); 2067 } 2068 break; 2069 } 2070 case EV_MSC: { 2071 if (rawEvent->code == MSC_SCAN) { 2072 mCurrentHidUsage = rawEvent->value; 2073 } 2074 break; 2075 } 2076 case EV_SYN: { 2077 if (rawEvent->code == SYN_REPORT) { 2078 mCurrentHidUsage = 0; 2079 } 2080 } 2081 } 2082 } 2083 2084 bool KeyboardInputMapper::isKeyboardOrGamepadKey(int32_t scanCode) { 2085 return scanCode < BTN_MOUSE 2086 || scanCode >= KEY_OK 2087 || (scanCode >= BTN_MISC && scanCode < BTN_MOUSE) 2088 || (scanCode >= BTN_JOYSTICK && scanCode < BTN_DIGI); 2089 } 2090 2091 void KeyboardInputMapper::processKey(nsecs_t when, bool down, int32_t keyCode, 2092 int32_t scanCode, uint32_t policyFlags) { 2093 2094 if (down) { 2095 // Rotate key codes according to orientation if needed. 2096 if (mParameters.orientationAware && mParameters.hasAssociatedDisplay) { 2097 keyCode = rotateKeyCode(keyCode, mOrientation); 2098 } 2099 2100 // Add key down. 2101 ssize_t keyDownIndex = findKeyDown(scanCode); 2102 if (keyDownIndex >= 0) { 2103 // key repeat, be sure to use same keycode as before in case of rotation 2104 keyCode = mKeyDowns.itemAt(keyDownIndex).keyCode; 2105 } else { 2106 // key down 2107 if ((policyFlags & POLICY_FLAG_VIRTUAL) 2108 && mContext->shouldDropVirtualKey(when, 2109 getDevice(), keyCode, scanCode)) { 2110 return; 2111 } 2112 2113 mKeyDowns.push(); 2114 KeyDown& keyDown = mKeyDowns.editTop(); 2115 keyDown.keyCode = keyCode; 2116 keyDown.scanCode = scanCode; 2117 } 2118 2119 mDownTime = when; 2120 } else { 2121 // Remove key down. 2122 ssize_t keyDownIndex = findKeyDown(scanCode); 2123 if (keyDownIndex >= 0) { 2124 // key up, be sure to use same keycode as before in case of rotation 2125 keyCode = mKeyDowns.itemAt(keyDownIndex).keyCode; 2126 mKeyDowns.removeAt(size_t(keyDownIndex)); 2127 } else { 2128 // key was not actually down 2129 ALOGI("Dropping key up from device %s because the key was not down. " 2130 "keyCode=%d, scanCode=%d", 2131 getDeviceName().string(), keyCode, scanCode); 2132 return; 2133 } 2134 } 2135 2136 bool metaStateChanged = false; 2137 int32_t oldMetaState = mMetaState; 2138 int32_t newMetaState = updateMetaState(keyCode, down, oldMetaState); 2139 if (oldMetaState != newMetaState) { 2140 mMetaState = newMetaState; 2141 metaStateChanged = true; 2142 updateLedState(false); 2143 } 2144 2145 nsecs_t downTime = mDownTime; 2146 2147 // Key down on external an keyboard should wake the device. 2148 // We don't do this for internal keyboards to prevent them from waking up in your pocket. 2149 // For internal keyboards, the key layout file should specify the policy flags for 2150 // each wake key individually. 2151 // TODO: Use the input device configuration to control this behavior more finely. 2152 if (down && getDevice()->isExternal() 2153 && !(policyFlags & (POLICY_FLAG_WAKE | POLICY_FLAG_WAKE_DROPPED))) { 2154 policyFlags |= POLICY_FLAG_WAKE_DROPPED; 2155 } 2156 2157 if (metaStateChanged) { 2158 getContext()->updateGlobalMetaState(); 2159 } 2160 2161 if (down && !isMetaKey(keyCode)) { 2162 getContext()->fadePointer(); 2163 } 2164 2165 NotifyKeyArgs args(when, getDeviceId(), mSource, policyFlags, 2166 down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP, 2167 AKEY_EVENT_FLAG_FROM_SYSTEM, keyCode, scanCode, newMetaState, downTime); 2168 getListener()->notifyKey(&args); 2169 } 2170 2171 ssize_t KeyboardInputMapper::findKeyDown(int32_t scanCode) { 2172 size_t n = mKeyDowns.size(); 2173 for (size_t i = 0; i < n; i++) { 2174 if (mKeyDowns[i].scanCode == scanCode) { 2175 return i; 2176 } 2177 } 2178 return -1; 2179 } 2180 2181 int32_t KeyboardInputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) { 2182 return getEventHub()->getKeyCodeState(getDeviceId(), keyCode); 2183 } 2184 2185 int32_t KeyboardInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { 2186 return getEventHub()->getScanCodeState(getDeviceId(), scanCode); 2187 } 2188 2189 bool KeyboardInputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, 2190 const int32_t* keyCodes, uint8_t* outFlags) { 2191 return getEventHub()->markSupportedKeyCodes(getDeviceId(), numCodes, keyCodes, outFlags); 2192 } 2193 2194 int32_t KeyboardInputMapper::getMetaState() { 2195 return mMetaState; 2196 } 2197 2198 void KeyboardInputMapper::resetLedState() { 2199 initializeLedState(mCapsLockLedState, LED_CAPSL); 2200 initializeLedState(mNumLockLedState, LED_NUML); 2201 initializeLedState(mScrollLockLedState, LED_SCROLLL); 2202 2203 updateLedState(true); 2204 } 2205 2206 void KeyboardInputMapper::initializeLedState(LedState& ledState, int32_t led) { 2207 ledState.avail = getEventHub()->hasLed(getDeviceId(), led); 2208 ledState.on = false; 2209 } 2210 2211 void KeyboardInputMapper::updateLedState(bool reset) { 2212 updateLedStateForModifier(mCapsLockLedState, LED_CAPSL, 2213 AMETA_CAPS_LOCK_ON, reset); 2214 updateLedStateForModifier(mNumLockLedState, LED_NUML, 2215 AMETA_NUM_LOCK_ON, reset); 2216 updateLedStateForModifier(mScrollLockLedState, LED_SCROLLL, 2217 AMETA_SCROLL_LOCK_ON, reset); 2218 } 2219 2220 void KeyboardInputMapper::updateLedStateForModifier(LedState& ledState, 2221 int32_t led, int32_t modifier, bool reset) { 2222 if (ledState.avail) { 2223 bool desiredState = (mMetaState & modifier) != 0; 2224 if (reset || ledState.on != desiredState) { 2225 getEventHub()->setLedState(getDeviceId(), led, desiredState); 2226 ledState.on = desiredState; 2227 } 2228 } 2229 } 2230 2231 2232 // --- CursorInputMapper --- 2233 2234 CursorInputMapper::CursorInputMapper(InputDevice* device) : 2235 InputMapper(device) { 2236 } 2237 2238 CursorInputMapper::~CursorInputMapper() { 2239 } 2240 2241 uint32_t CursorInputMapper::getSources() { 2242 return mSource; 2243 } 2244 2245 void CursorInputMapper::populateDeviceInfo(InputDeviceInfo* info) { 2246 InputMapper::populateDeviceInfo(info); 2247 2248 if (mParameters.mode == Parameters::MODE_POINTER) { 2249 float minX, minY, maxX, maxY; 2250 if (mPointerController->getBounds(&minX, &minY, &maxX, &maxY)) { 2251 info->addMotionRange(AMOTION_EVENT_AXIS_X, mSource, minX, maxX, 0.0f, 0.0f, 0.0f); 2252 info->addMotionRange(AMOTION_EVENT_AXIS_Y, mSource, minY, maxY, 0.0f, 0.0f, 0.0f); 2253 } 2254 } else { 2255 info->addMotionRange(AMOTION_EVENT_AXIS_X, mSource, -1.0f, 1.0f, 0.0f, mXScale, 0.0f); 2256 info->addMotionRange(AMOTION_EVENT_AXIS_Y, mSource, -1.0f, 1.0f, 0.0f, mYScale, 0.0f); 2257 } 2258 info->addMotionRange(AMOTION_EVENT_AXIS_PRESSURE, mSource, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f); 2259 2260 if (mCursorScrollAccumulator.haveRelativeVWheel()) { 2261 info->addMotionRange(AMOTION_EVENT_AXIS_VSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f); 2262 } 2263 if (mCursorScrollAccumulator.haveRelativeHWheel()) { 2264 info->addMotionRange(AMOTION_EVENT_AXIS_HSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f); 2265 } 2266 } 2267 2268 void CursorInputMapper::dump(String8& dump) { 2269 dump.append(INDENT2 "Cursor Input Mapper:\n"); 2270 dumpParameters(dump); 2271 dump.appendFormat(INDENT3 "XScale: %0.3f\n", mXScale); 2272 dump.appendFormat(INDENT3 "YScale: %0.3f\n", mYScale); 2273 dump.appendFormat(INDENT3 "XPrecision: %0.3f\n", mXPrecision); 2274 dump.appendFormat(INDENT3 "YPrecision: %0.3f\n", mYPrecision); 2275 dump.appendFormat(INDENT3 "HaveVWheel: %s\n", 2276 toString(mCursorScrollAccumulator.haveRelativeVWheel())); 2277 dump.appendFormat(INDENT3 "HaveHWheel: %s\n", 2278 toString(mCursorScrollAccumulator.haveRelativeHWheel())); 2279 dump.appendFormat(INDENT3 "VWheelScale: %0.3f\n", mVWheelScale); 2280 dump.appendFormat(INDENT3 "HWheelScale: %0.3f\n", mHWheelScale); 2281 dump.appendFormat(INDENT3 "Orientation: %d\n", mOrientation); 2282 dump.appendFormat(INDENT3 "ButtonState: 0x%08x\n", mButtonState); 2283 dump.appendFormat(INDENT3 "Down: %s\n", toString(isPointerDown(mButtonState))); 2284 dump.appendFormat(INDENT3 "DownTime: %lld\n", mDownTime); 2285 } 2286 2287 void CursorInputMapper::configure(nsecs_t when, 2288 const InputReaderConfiguration* config, uint32_t changes) { 2289 InputMapper::configure(when, config, changes); 2290 2291 if (!changes) { // first time only 2292 mCursorScrollAccumulator.configure(getDevice()); 2293 2294 // Configure basic parameters. 2295 configureParameters(); 2296 2297 // Configure device mode. 2298 switch (mParameters.mode) { 2299 case Parameters::MODE_POINTER: 2300 mSource = AINPUT_SOURCE_MOUSE; 2301 mXPrecision = 1.0f; 2302 mYPrecision = 1.0f; 2303 mXScale = 1.0f; 2304 mYScale = 1.0f; 2305 mPointerController = getPolicy()->obtainPointerController(getDeviceId()); 2306 break; 2307 case Parameters::MODE_NAVIGATION: 2308 mSource = AINPUT_SOURCE_TRACKBALL; 2309 mXPrecision = TRACKBALL_MOVEMENT_THRESHOLD; 2310 mYPrecision = TRACKBALL_MOVEMENT_THRESHOLD; 2311 mXScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD; 2312 mYScale = 1.0f / TRACKBALL_MOVEMENT_THRESHOLD; 2313 break; 2314 } 2315 2316 mVWheelScale = 1.0f; 2317 mHWheelScale = 1.0f; 2318 } 2319 2320 if (!changes || (changes & InputReaderConfiguration::CHANGE_POINTER_SPEED)) { 2321 mPointerVelocityControl.setParameters(config->pointerVelocityControlParameters); 2322 mWheelXVelocityControl.setParameters(config->wheelVelocityControlParameters); 2323 mWheelYVelocityControl.setParameters(config->wheelVelocityControlParameters); 2324 } 2325 2326 if (!changes || (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) { 2327 if (mParameters.orientationAware && mParameters.hasAssociatedDisplay) { 2328 DisplayViewport v; 2329 if (config->getDisplayInfo(false /*external*/, &v)) { 2330 mOrientation = v.orientation; 2331 } else { 2332 mOrientation = DISPLAY_ORIENTATION_0; 2333 } 2334 } else { 2335 mOrientation = DISPLAY_ORIENTATION_0; 2336 } 2337 bumpGeneration(); 2338 } 2339 } 2340 2341 void CursorInputMapper::configureParameters() { 2342 mParameters.mode = Parameters::MODE_POINTER; 2343 String8 cursorModeString; 2344 if (getDevice()->getConfiguration().tryGetProperty(String8("cursor.mode"), cursorModeString)) { 2345 if (cursorModeString == "navigation") { 2346 mParameters.mode = Parameters::MODE_NAVIGATION; 2347 } else if (cursorModeString != "pointer" && cursorModeString != "default") { 2348 ALOGW("Invalid value for cursor.mode: '%s'", cursorModeString.string()); 2349 } 2350 } 2351 2352 mParameters.orientationAware = false; 2353 getDevice()->getConfiguration().tryGetProperty(String8("cursor.orientationAware"), 2354 mParameters.orientationAware); 2355 2356 mParameters.hasAssociatedDisplay = false; 2357 if (mParameters.mode == Parameters::MODE_POINTER || mParameters.orientationAware) { 2358 mParameters.hasAssociatedDisplay = true; 2359 } 2360 } 2361 2362 void CursorInputMapper::dumpParameters(String8& dump) { 2363 dump.append(INDENT3 "Parameters:\n"); 2364 dump.appendFormat(INDENT4 "HasAssociatedDisplay: %s\n", 2365 toString(mParameters.hasAssociatedDisplay)); 2366 2367 switch (mParameters.mode) { 2368 case Parameters::MODE_POINTER: 2369 dump.append(INDENT4 "Mode: pointer\n"); 2370 break; 2371 case Parameters::MODE_NAVIGATION: 2372 dump.append(INDENT4 "Mode: navigation\n"); 2373 break; 2374 default: 2375 ALOG_ASSERT(false); 2376 } 2377 2378 dump.appendFormat(INDENT4 "OrientationAware: %s\n", 2379 toString(mParameters.orientationAware)); 2380 } 2381 2382 void CursorInputMapper::reset(nsecs_t when) { 2383 mButtonState = 0; 2384 mDownTime = 0; 2385 2386 mPointerVelocityControl.reset(); 2387 mWheelXVelocityControl.reset(); 2388 mWheelYVelocityControl.reset(); 2389 2390 mCursorButtonAccumulator.reset(getDevice()); 2391 mCursorMotionAccumulator.reset(getDevice()); 2392 mCursorScrollAccumulator.reset(getDevice()); 2393 2394 InputMapper::reset(when); 2395 } 2396 2397 void CursorInputMapper::process(const RawEvent* rawEvent) { 2398 mCursorButtonAccumulator.process(rawEvent); 2399 mCursorMotionAccumulator.process(rawEvent); 2400 mCursorScrollAccumulator.process(rawEvent); 2401 2402 if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) { 2403 sync(rawEvent->when); 2404 } 2405 } 2406 2407 void CursorInputMapper::sync(nsecs_t when) { 2408 int32_t lastButtonState = mButtonState; 2409 int32_t currentButtonState = mCursorButtonAccumulator.getButtonState(); 2410 mButtonState = currentButtonState; 2411 2412 bool wasDown = isPointerDown(lastButtonState); 2413 bool down = isPointerDown(currentButtonState); 2414 bool downChanged; 2415 if (!wasDown && down) { 2416 mDownTime = when; 2417 downChanged = true; 2418 } else if (wasDown && !down) { 2419 downChanged = true; 2420 } else { 2421 downChanged = false; 2422 } 2423 nsecs_t downTime = mDownTime; 2424 bool buttonsChanged = currentButtonState != lastButtonState; 2425 bool buttonsPressed = currentButtonState & ~lastButtonState; 2426 2427 float deltaX = mCursorMotionAccumulator.getRelativeX() * mXScale; 2428 float deltaY = mCursorMotionAccumulator.getRelativeY() * mYScale; 2429 bool moved = deltaX != 0 || deltaY != 0; 2430 2431 // Rotate delta according to orientation if needed. 2432 if (mParameters.orientationAware && mParameters.hasAssociatedDisplay 2433 && (deltaX != 0.0f || deltaY != 0.0f)) { 2434 rotateDelta(mOrientation, &deltaX, &deltaY); 2435 } 2436 2437 // Move the pointer. 2438 PointerProperties pointerProperties; 2439 pointerProperties.clear(); 2440 pointerProperties.id = 0; 2441 pointerProperties.toolType = AMOTION_EVENT_TOOL_TYPE_MOUSE; 2442 2443 PointerCoords pointerCoords; 2444 pointerCoords.clear(); 2445 2446 float vscroll = mCursorScrollAccumulator.getRelativeVWheel(); 2447 float hscroll = mCursorScrollAccumulator.getRelativeHWheel(); 2448 bool scrolled = vscroll != 0 || hscroll != 0; 2449 2450 mWheelYVelocityControl.move(when, NULL, &vscroll); 2451 mWheelXVelocityControl.move(when, &hscroll, NULL); 2452 2453 mPointerVelocityControl.move(when, &deltaX, &deltaY); 2454 2455 int32_t displayId; 2456 if (mPointerController != NULL) { 2457 if (moved || scrolled || buttonsChanged) { 2458 mPointerController->setPresentation( 2459 PointerControllerInterface::PRESENTATION_POINTER); 2460 2461 if (moved) { 2462 mPointerController->move(deltaX, deltaY); 2463 } 2464 2465 if (buttonsChanged) { 2466 mPointerController->setButtonState(currentButtonState); 2467 } 2468 2469 mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE); 2470 } 2471 2472 float x, y; 2473 mPointerController->getPosition(&x, &y); 2474 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x); 2475 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y); 2476 displayId = ADISPLAY_ID_DEFAULT; 2477 } else { 2478 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, deltaX); 2479 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, deltaY); 2480 displayId = ADISPLAY_ID_NONE; 2481 } 2482 2483 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, down ? 1.0f : 0.0f); 2484 2485 // Moving an external trackball or mouse should wake the device. 2486 // We don't do this for internal cursor devices to prevent them from waking up 2487 // the device in your pocket. 2488 // TODO: Use the input device configuration to control this behavior more finely. 2489 uint32_t policyFlags = 0; 2490 if ((buttonsPressed || moved || scrolled) && getDevice()->isExternal()) { 2491 policyFlags |= POLICY_FLAG_WAKE_DROPPED; 2492 } 2493 2494 // Synthesize key down from buttons if needed. 2495 synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_DOWN, when, getDeviceId(), mSource, 2496 policyFlags, lastButtonState, currentButtonState); 2497 2498 // Send motion event. 2499 if (downChanged || moved || scrolled || buttonsChanged) { 2500 int32_t metaState = mContext->getGlobalMetaState(); 2501 int32_t motionEventAction; 2502 if (downChanged) { 2503 motionEventAction = down ? AMOTION_EVENT_ACTION_DOWN : AMOTION_EVENT_ACTION_UP; 2504 } else if (down || mPointerController == NULL) { 2505 motionEventAction = AMOTION_EVENT_ACTION_MOVE; 2506 } else { 2507 motionEventAction = AMOTION_EVENT_ACTION_HOVER_MOVE; 2508 } 2509 2510 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 2511 motionEventAction, 0, metaState, currentButtonState, 0, 2512 displayId, 1, &pointerProperties, &pointerCoords, 2513 mXPrecision, mYPrecision, downTime); 2514 getListener()->notifyMotion(&args); 2515 2516 // Send hover move after UP to tell the application that the mouse is hovering now. 2517 if (motionEventAction == AMOTION_EVENT_ACTION_UP 2518 && mPointerController != NULL) { 2519 NotifyMotionArgs hoverArgs(when, getDeviceId(), mSource, policyFlags, 2520 AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 2521 metaState, currentButtonState, AMOTION_EVENT_EDGE_FLAG_NONE, 2522 displayId, 1, &pointerProperties, &pointerCoords, 2523 mXPrecision, mYPrecision, downTime); 2524 getListener()->notifyMotion(&hoverArgs); 2525 } 2526 2527 // Send scroll events. 2528 if (scrolled) { 2529 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_VSCROLL, vscroll); 2530 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_HSCROLL, hscroll); 2531 2532 NotifyMotionArgs scrollArgs(when, getDeviceId(), mSource, policyFlags, 2533 AMOTION_EVENT_ACTION_SCROLL, 0, metaState, currentButtonState, 2534 AMOTION_EVENT_EDGE_FLAG_NONE, 2535 displayId, 1, &pointerProperties, &pointerCoords, 2536 mXPrecision, mYPrecision, downTime); 2537 getListener()->notifyMotion(&scrollArgs); 2538 } 2539 } 2540 2541 // Synthesize key up from buttons if needed. 2542 synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_UP, when, getDeviceId(), mSource, 2543 policyFlags, lastButtonState, currentButtonState); 2544 2545 mCursorMotionAccumulator.finishSync(); 2546 mCursorScrollAccumulator.finishSync(); 2547 } 2548 2549 int32_t CursorInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { 2550 if (scanCode >= BTN_MOUSE && scanCode < BTN_JOYSTICK) { 2551 return getEventHub()->getScanCodeState(getDeviceId(), scanCode); 2552 } else { 2553 return AKEY_STATE_UNKNOWN; 2554 } 2555 } 2556 2557 void CursorInputMapper::fadePointer() { 2558 if (mPointerController != NULL) { 2559 mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); 2560 } 2561 } 2562 2563 2564 // --- TouchInputMapper --- 2565 2566 TouchInputMapper::TouchInputMapper(InputDevice* device) : 2567 InputMapper(device), 2568 mSource(0), mDeviceMode(DEVICE_MODE_DISABLED), 2569 mSurfaceWidth(-1), mSurfaceHeight(-1), mSurfaceLeft(0), mSurfaceTop(0), 2570 mSurfaceOrientation(DISPLAY_ORIENTATION_0) { 2571 } 2572 2573 TouchInputMapper::~TouchInputMapper() { 2574 } 2575 2576 uint32_t TouchInputMapper::getSources() { 2577 return mSource; 2578 } 2579 2580 void TouchInputMapper::populateDeviceInfo(InputDeviceInfo* info) { 2581 InputMapper::populateDeviceInfo(info); 2582 2583 if (mDeviceMode != DEVICE_MODE_DISABLED) { 2584 info->addMotionRange(mOrientedRanges.x); 2585 info->addMotionRange(mOrientedRanges.y); 2586 info->addMotionRange(mOrientedRanges.pressure); 2587 2588 if (mOrientedRanges.haveSize) { 2589 info->addMotionRange(mOrientedRanges.size); 2590 } 2591 2592 if (mOrientedRanges.haveTouchSize) { 2593 info->addMotionRange(mOrientedRanges.touchMajor); 2594 info->addMotionRange(mOrientedRanges.touchMinor); 2595 } 2596 2597 if (mOrientedRanges.haveToolSize) { 2598 info->addMotionRange(mOrientedRanges.toolMajor); 2599 info->addMotionRange(mOrientedRanges.toolMinor); 2600 } 2601 2602 if (mOrientedRanges.haveOrientation) { 2603 info->addMotionRange(mOrientedRanges.orientation); 2604 } 2605 2606 if (mOrientedRanges.haveDistance) { 2607 info->addMotionRange(mOrientedRanges.distance); 2608 } 2609 2610 if (mOrientedRanges.haveTilt) { 2611 info->addMotionRange(mOrientedRanges.tilt); 2612 } 2613 2614 if (mCursorScrollAccumulator.haveRelativeVWheel()) { 2615 info->addMotionRange(AMOTION_EVENT_AXIS_VSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f, 2616 0.0f); 2617 } 2618 if (mCursorScrollAccumulator.haveRelativeHWheel()) { 2619 info->addMotionRange(AMOTION_EVENT_AXIS_HSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f, 2620 0.0f); 2621 } 2622 if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_BOX) { 2623 const InputDeviceInfo::MotionRange& x = mOrientedRanges.x; 2624 const InputDeviceInfo::MotionRange& y = mOrientedRanges.y; 2625 info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_1, mSource, x.min, x.max, x.flat, 2626 x.fuzz, x.resolution); 2627 info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_2, mSource, y.min, y.max, y.flat, 2628 y.fuzz, y.resolution); 2629 info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_3, mSource, x.min, x.max, x.flat, 2630 x.fuzz, x.resolution); 2631 info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_4, mSource, y.min, y.max, y.flat, 2632 y.fuzz, y.resolution); 2633 } 2634 } 2635 } 2636 2637 void TouchInputMapper::dump(String8& dump) { 2638 dump.append(INDENT2 "Touch Input Mapper:\n"); 2639 dumpParameters(dump); 2640 dumpVirtualKeys(dump); 2641 dumpRawPointerAxes(dump); 2642 dumpCalibration(dump); 2643 dumpSurface(dump); 2644 2645 dump.appendFormat(INDENT3 "Translation and Scaling Factors:\n"); 2646 dump.appendFormat(INDENT4 "XTranslate: %0.3f\n", mXTranslate); 2647 dump.appendFormat(INDENT4 "YTranslate: %0.3f\n", mYTranslate); 2648 dump.appendFormat(INDENT4 "XScale: %0.3f\n", mXScale); 2649 dump.appendFormat(INDENT4 "YScale: %0.3f\n", mYScale); 2650 dump.appendFormat(INDENT4 "XPrecision: %0.3f\n", mXPrecision); 2651 dump.appendFormat(INDENT4 "YPrecision: %0.3f\n", mYPrecision); 2652 dump.appendFormat(INDENT4 "GeometricScale: %0.3f\n", mGeometricScale); 2653 dump.appendFormat(INDENT4 "PressureScale: %0.3f\n", mPressureScale); 2654 dump.appendFormat(INDENT4 "SizeScale: %0.3f\n", mSizeScale); 2655 dump.appendFormat(INDENT4 "OrientationScale: %0.3f\n", mOrientationScale); 2656 dump.appendFormat(INDENT4 "DistanceScale: %0.3f\n", mDistanceScale); 2657 dump.appendFormat(INDENT4 "HaveTilt: %s\n", toString(mHaveTilt)); 2658 dump.appendFormat(INDENT4 "TiltXCenter: %0.3f\n", mTiltXCenter); 2659 dump.appendFormat(INDENT4 "TiltXScale: %0.3f\n", mTiltXScale); 2660 dump.appendFormat(INDENT4 "TiltYCenter: %0.3f\n", mTiltYCenter); 2661 dump.appendFormat(INDENT4 "TiltYScale: %0.3f\n", mTiltYScale); 2662 2663 dump.appendFormat(INDENT3 "Last Button State: 0x%08x\n", mLastButtonState); 2664 2665 dump.appendFormat(INDENT3 "Last Raw Touch: pointerCount=%d\n", 2666 mLastRawPointerData.pointerCount); 2667 for (uint32_t i = 0; i < mLastRawPointerData.pointerCount; i++) { 2668 const RawPointerData::Pointer& pointer = mLastRawPointerData.pointers[i]; 2669 dump.appendFormat(INDENT4 "[%d]: id=%d, x=%d, y=%d, pressure=%d, " 2670 "touchMajor=%d, touchMinor=%d, toolMajor=%d, toolMinor=%d, " 2671 "orientation=%d, tiltX=%d, tiltY=%d, distance=%d, " 2672 "toolType=%d, isHovering=%s\n", i, 2673 pointer.id, pointer.x, pointer.y, pointer.pressure, 2674 pointer.touchMajor, pointer.touchMinor, 2675 pointer.toolMajor, pointer.toolMinor, 2676 pointer.orientation, pointer.tiltX, pointer.tiltY, pointer.distance, 2677 pointer.toolType, toString(pointer.isHovering)); 2678 } 2679 2680 dump.appendFormat(INDENT3 "Last Cooked Touch: pointerCount=%d\n", 2681 mLastCookedPointerData.pointerCount); 2682 for (uint32_t i = 0; i < mLastCookedPointerData.pointerCount; i++) { 2683 const PointerProperties& pointerProperties = mLastCookedPointerData.pointerProperties[i]; 2684 const PointerCoords& pointerCoords = mLastCookedPointerData.pointerCoords[i]; 2685 dump.appendFormat(INDENT4 "[%d]: id=%d, x=%0.3f, y=%0.3f, pressure=%0.3f, " 2686 "touchMajor=%0.3f, touchMinor=%0.3f, toolMajor=%0.3f, toolMinor=%0.3f, " 2687 "orientation=%0.3f, tilt=%0.3f, distance=%0.3f, " 2688 "toolType=%d, isHovering=%s\n", i, 2689 pointerProperties.id, 2690 pointerCoords.getX(), 2691 pointerCoords.getY(), 2692 pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_PRESSURE), 2693 pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR), 2694 pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR), 2695 pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR), 2696 pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR), 2697 pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION), 2698 pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_TILT), 2699 pointerCoords.getAxisValue(AMOTION_EVENT_AXIS_DISTANCE), 2700 pointerProperties.toolType, 2701 toString(mLastCookedPointerData.isHovering(i))); 2702 } 2703 2704 if (mDeviceMode == DEVICE_MODE_POINTER) { 2705 dump.appendFormat(INDENT3 "Pointer Gesture Detector:\n"); 2706 dump.appendFormat(INDENT4 "XMovementScale: %0.3f\n", 2707 mPointerXMovementScale); 2708 dump.appendFormat(INDENT4 "YMovementScale: %0.3f\n", 2709 mPointerYMovementScale); 2710 dump.appendFormat(INDENT4 "XZoomScale: %0.3f\n", 2711 mPointerXZoomScale); 2712 dump.appendFormat(INDENT4 "YZoomScale: %0.3f\n", 2713 mPointerYZoomScale); 2714 dump.appendFormat(INDENT4 "MaxSwipeWidth: %f\n", 2715 mPointerGestureMaxSwipeWidth); 2716 } 2717 } 2718 2719 void TouchInputMapper::configure(nsecs_t when, 2720 const InputReaderConfiguration* config, uint32_t changes) { 2721 InputMapper::configure(when, config, changes); 2722 2723 mConfig = *config; 2724 2725 if (!changes) { // first time only 2726 // Configure basic parameters. 2727 configureParameters(); 2728 2729 // Configure common accumulators. 2730 mCursorScrollAccumulator.configure(getDevice()); 2731 mTouchButtonAccumulator.configure(getDevice()); 2732 2733 // Configure absolute axis information. 2734 configureRawPointerAxes(); 2735 2736 // Prepare input device calibration. 2737 parseCalibration(); 2738 resolveCalibration(); 2739 } 2740 2741 if (!changes || (changes & InputReaderConfiguration::CHANGE_POINTER_SPEED)) { 2742 // Update pointer speed. 2743 mPointerVelocityControl.setParameters(mConfig.pointerVelocityControlParameters); 2744 mWheelXVelocityControl.setParameters(mConfig.wheelVelocityControlParameters); 2745 mWheelYVelocityControl.setParameters(mConfig.wheelVelocityControlParameters); 2746 } 2747 2748 bool resetNeeded = false; 2749 if (!changes || (changes & (InputReaderConfiguration::CHANGE_DISPLAY_INFO 2750 | InputReaderConfiguration::CHANGE_POINTER_GESTURE_ENABLEMENT 2751 | InputReaderConfiguration::CHANGE_SHOW_TOUCHES))) { 2752 // Configure device sources, surface dimensions, orientation and 2753 // scaling factors. 2754 configureSurface(when, &resetNeeded); 2755 } 2756 2757 if (changes && resetNeeded) { 2758 // Send reset, unless this is the first time the device has been configured, 2759 // in which case the reader will call reset itself after all mappers are ready. 2760 getDevice()->notifyReset(when); 2761 } 2762 } 2763 2764 void TouchInputMapper::configureParameters() { 2765 // Use the pointer presentation mode for devices that do not support distinct 2766 // multitouch. The spot-based presentation relies on being able to accurately 2767 // locate two or more fingers on the touch pad. 2768 mParameters.gestureMode = getEventHub()->hasInputProperty(getDeviceId(), INPUT_PROP_SEMI_MT) 2769 ? Parameters::GESTURE_MODE_POINTER : Parameters::GESTURE_MODE_SPOTS; 2770 2771 String8 gestureModeString; 2772 if (getDevice()->getConfiguration().tryGetProperty(String8("touch.gestureMode"), 2773 gestureModeString)) { 2774 if (gestureModeString == "pointer") { 2775 mParameters.gestureMode = Parameters::GESTURE_MODE_POINTER; 2776 } else if (gestureModeString == "spots") { 2777 mParameters.gestureMode = Parameters::GESTURE_MODE_SPOTS; 2778 } else if (gestureModeString != "default") { 2779 ALOGW("Invalid value for touch.gestureMode: '%s'", gestureModeString.string()); 2780 } 2781 } 2782 2783 if (getEventHub()->hasInputProperty(getDeviceId(), INPUT_PROP_DIRECT)) { 2784 // The device is a touch screen. 2785 mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_SCREEN; 2786 } else if (getEventHub()->hasInputProperty(getDeviceId(), INPUT_PROP_POINTER)) { 2787 // The device is a pointing device like a track pad. 2788 mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER; 2789 } else if (getEventHub()->hasRelativeAxis(getDeviceId(), REL_X) 2790 || getEventHub()->hasRelativeAxis(getDeviceId(), REL_Y)) { 2791 // The device is a cursor device with a touch pad attached. 2792 // By default don't use the touch pad to move the pointer. 2793 mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_PAD; 2794 } else { 2795 // The device is a touch pad of unknown purpose. 2796 mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER; 2797 } 2798 2799 String8 deviceTypeString; 2800 if (getDevice()->getConfiguration().tryGetProperty(String8("touch.deviceType"), 2801 deviceTypeString)) { 2802 if (deviceTypeString == "touchScreen") { 2803 mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_SCREEN; 2804 } else if (deviceTypeString == "touchPad") { 2805 mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_PAD; 2806 } else if (deviceTypeString == "touchNavigation") { 2807 mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_NAVIGATION; 2808 } else if (deviceTypeString == "pointer") { 2809 mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER; 2810 } else if (deviceTypeString != "default") { 2811 ALOGW("Invalid value for touch.deviceType: '%s'", deviceTypeString.string()); 2812 } 2813 } 2814 2815 mParameters.orientationAware = mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN; 2816 getDevice()->getConfiguration().tryGetProperty(String8("touch.orientationAware"), 2817 mParameters.orientationAware); 2818 2819 mParameters.hasAssociatedDisplay = false; 2820 mParameters.associatedDisplayIsExternal = false; 2821 if (mParameters.orientationAware 2822 || mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN 2823 || mParameters.deviceType == Parameters::DEVICE_TYPE_POINTER) { 2824 mParameters.hasAssociatedDisplay = true; 2825 mParameters.associatedDisplayIsExternal = 2826 mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN 2827 && getDevice()->isExternal(); 2828 } 2829 } 2830 2831 void TouchInputMapper::dumpParameters(String8& dump) { 2832 dump.append(INDENT3 "Parameters:\n"); 2833 2834 switch (mParameters.gestureMode) { 2835 case Parameters::GESTURE_MODE_POINTER: 2836 dump.append(INDENT4 "GestureMode: pointer\n"); 2837 break; 2838 case Parameters::GESTURE_MODE_SPOTS: 2839 dump.append(INDENT4 "GestureMode: spots\n"); 2840 break; 2841 default: 2842 assert(false); 2843 } 2844 2845 switch (mParameters.deviceType) { 2846 case Parameters::DEVICE_TYPE_TOUCH_SCREEN: 2847 dump.append(INDENT4 "DeviceType: touchScreen\n"); 2848 break; 2849 case Parameters::DEVICE_TYPE_TOUCH_PAD: 2850 dump.append(INDENT4 "DeviceType: touchPad\n"); 2851 break; 2852 case Parameters::DEVICE_TYPE_TOUCH_NAVIGATION: 2853 dump.append(INDENT4 "DeviceType: touchNavigation\n"); 2854 break; 2855 case Parameters::DEVICE_TYPE_POINTER: 2856 dump.append(INDENT4 "DeviceType: pointer\n"); 2857 break; 2858 default: 2859 ALOG_ASSERT(false); 2860 } 2861 2862 dump.appendFormat(INDENT4 "AssociatedDisplay: hasAssociatedDisplay=%s, isExternal=%s\n", 2863 toString(mParameters.hasAssociatedDisplay), 2864 toString(mParameters.associatedDisplayIsExternal)); 2865 dump.appendFormat(INDENT4 "OrientationAware: %s\n", 2866 toString(mParameters.orientationAware)); 2867 } 2868 2869 void TouchInputMapper::configureRawPointerAxes() { 2870 mRawPointerAxes.clear(); 2871 } 2872 2873 void TouchInputMapper::dumpRawPointerAxes(String8& dump) { 2874 dump.append(INDENT3 "Raw Touch Axes:\n"); 2875 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.x, "X"); 2876 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.y, "Y"); 2877 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.pressure, "Pressure"); 2878 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.touchMajor, "TouchMajor"); 2879 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.touchMinor, "TouchMinor"); 2880 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.toolMajor, "ToolMajor"); 2881 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.toolMinor, "ToolMinor"); 2882 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.orientation, "Orientation"); 2883 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.distance, "Distance"); 2884 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.tiltX, "TiltX"); 2885 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.tiltY, "TiltY"); 2886 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.trackingId, "TrackingId"); 2887 dumpRawAbsoluteAxisInfo(dump, mRawPointerAxes.slot, "Slot"); 2888 } 2889 2890 void TouchInputMapper::configureSurface(nsecs_t when, bool* outResetNeeded) { 2891 int32_t oldDeviceMode = mDeviceMode; 2892 2893 // Determine device mode. 2894 if (mParameters.deviceType == Parameters::DEVICE_TYPE_POINTER 2895 && mConfig.pointerGesturesEnabled) { 2896 mSource = AINPUT_SOURCE_MOUSE; 2897 mDeviceMode = DEVICE_MODE_POINTER; 2898 if (hasStylus()) { 2899 mSource |= AINPUT_SOURCE_STYLUS; 2900 } 2901 } else if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN 2902 && mParameters.hasAssociatedDisplay) { 2903 mSource = AINPUT_SOURCE_TOUCHSCREEN; 2904 mDeviceMode = DEVICE_MODE_DIRECT; 2905 if (hasStylus()) { 2906 mSource |= AINPUT_SOURCE_STYLUS; 2907 } 2908 } else if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_NAVIGATION) { 2909 mSource = AINPUT_SOURCE_TOUCH_NAVIGATION; 2910 mDeviceMode = DEVICE_MODE_NAVIGATION; 2911 } else { 2912 mSource = AINPUT_SOURCE_TOUCHPAD; 2913 mDeviceMode = DEVICE_MODE_UNSCALED; 2914 } 2915 2916 // Ensure we have valid X and Y axes. 2917 if (!mRawPointerAxes.x.valid || !mRawPointerAxes.y.valid) { 2918 ALOGW(INDENT "Touch device '%s' did not report support for X or Y axis! " 2919 "The device will be inoperable.", getDeviceName().string()); 2920 mDeviceMode = DEVICE_MODE_DISABLED; 2921 return; 2922 } 2923 2924 // Raw width and height in the natural orientation. 2925 int32_t rawWidth = mRawPointerAxes.x.maxValue - mRawPointerAxes.x.minValue + 1; 2926 int32_t rawHeight = mRawPointerAxes.y.maxValue - mRawPointerAxes.y.minValue + 1; 2927 2928 // Get associated display dimensions. 2929 bool viewportChanged = false; 2930 DisplayViewport newViewport; 2931 if (mParameters.hasAssociatedDisplay) { 2932 if (!mConfig.getDisplayInfo(mParameters.associatedDisplayIsExternal, &newViewport)) { 2933 ALOGI(INDENT "Touch device '%s' could not query the properties of its associated " 2934 "display. The device will be inoperable until the display size " 2935 "becomes available.", 2936 getDeviceName().string()); 2937 mDeviceMode = DEVICE_MODE_DISABLED; 2938 return; 2939 } 2940 } else { 2941 newViewport.setNonDisplayViewport(rawWidth, rawHeight); 2942 } 2943 if (mViewport != newViewport) { 2944 mViewport = newViewport; 2945 viewportChanged = true; 2946 2947 if (mDeviceMode == DEVICE_MODE_DIRECT || mDeviceMode == DEVICE_MODE_POINTER) { 2948 // Convert rotated viewport to natural surface coordinates. 2949 int32_t naturalLogicalWidth, naturalLogicalHeight; 2950 int32_t naturalPhysicalWidth, naturalPhysicalHeight; 2951 int32_t naturalPhysicalLeft, naturalPhysicalTop; 2952 int32_t naturalDeviceWidth, naturalDeviceHeight; 2953 switch (mViewport.orientation) { 2954 case DISPLAY_ORIENTATION_90: 2955 naturalLogicalWidth = mViewport.logicalBottom - mViewport.logicalTop; 2956 naturalLogicalHeight = mViewport.logicalRight - mViewport.logicalLeft; 2957 naturalPhysicalWidth = mViewport.physicalBottom - mViewport.physicalTop; 2958 naturalPhysicalHeight = mViewport.physicalRight - mViewport.physicalLeft; 2959 naturalPhysicalLeft = mViewport.deviceHeight - mViewport.physicalBottom; 2960 naturalPhysicalTop = mViewport.physicalLeft; 2961 naturalDeviceWidth = mViewport.deviceHeight; 2962 naturalDeviceHeight = mViewport.deviceWidth; 2963 break; 2964 case DISPLAY_ORIENTATION_180: 2965 naturalLogicalWidth = mViewport.logicalRight - mViewport.logicalLeft; 2966 naturalLogicalHeight = mViewport.logicalBottom - mViewport.logicalTop; 2967 naturalPhysicalWidth = mViewport.physicalRight - mViewport.physicalLeft; 2968 naturalPhysicalHeight = mViewport.physicalBottom - mViewport.physicalTop; 2969 naturalPhysicalLeft = mViewport.deviceWidth - mViewport.physicalRight; 2970 naturalPhysicalTop = mViewport.deviceHeight - mViewport.physicalBottom; 2971 naturalDeviceWidth = mViewport.deviceWidth; 2972 naturalDeviceHeight = mViewport.deviceHeight; 2973 break; 2974 case DISPLAY_ORIENTATION_270: 2975 naturalLogicalWidth = mViewport.logicalBottom - mViewport.logicalTop; 2976 naturalLogicalHeight = mViewport.logicalRight - mViewport.logicalLeft; 2977 naturalPhysicalWidth = mViewport.physicalBottom - mViewport.physicalTop; 2978 naturalPhysicalHeight = mViewport.physicalRight - mViewport.physicalLeft; 2979 naturalPhysicalLeft = mViewport.physicalTop; 2980 naturalPhysicalTop = mViewport.deviceWidth - mViewport.physicalRight; 2981 naturalDeviceWidth = mViewport.deviceHeight; 2982 naturalDeviceHeight = mViewport.deviceWidth; 2983 break; 2984 case DISPLAY_ORIENTATION_0: 2985 default: 2986 naturalLogicalWidth = mViewport.logicalRight - mViewport.logicalLeft; 2987 naturalLogicalHeight = mViewport.logicalBottom - mViewport.logicalTop; 2988 naturalPhysicalWidth = mViewport.physicalRight - mViewport.physicalLeft; 2989 naturalPhysicalHeight = mViewport.physicalBottom - mViewport.physicalTop; 2990 naturalPhysicalLeft = mViewport.physicalLeft; 2991 naturalPhysicalTop = mViewport.physicalTop; 2992 naturalDeviceWidth = mViewport.deviceWidth; 2993 naturalDeviceHeight = mViewport.deviceHeight; 2994 break; 2995 } 2996 2997 mSurfaceWidth = naturalLogicalWidth * naturalDeviceWidth / naturalPhysicalWidth; 2998 mSurfaceHeight = naturalLogicalHeight * naturalDeviceHeight / naturalPhysicalHeight; 2999 mSurfaceLeft = naturalPhysicalLeft * naturalLogicalWidth / naturalPhysicalWidth; 3000 mSurfaceTop = naturalPhysicalTop * naturalLogicalHeight / naturalPhysicalHeight; 3001 3002 mSurfaceOrientation = mParameters.orientationAware ? 3003 mViewport.orientation : DISPLAY_ORIENTATION_0; 3004 } else { 3005 mSurfaceWidth = rawWidth; 3006 mSurfaceHeight = rawHeight; 3007 mSurfaceLeft = 0; 3008 mSurfaceTop = 0; 3009 mSurfaceOrientation = DISPLAY_ORIENTATION_0; 3010 } 3011 } 3012 3013 // If moving between pointer modes, need to reset some state. 3014 bool deviceModeChanged; 3015 if (mDeviceMode != oldDeviceMode) { 3016 deviceModeChanged = true; 3017 mOrientedRanges.clear(); 3018 } 3019 3020 // Create pointer controller if needed. 3021 if (mDeviceMode == DEVICE_MODE_POINTER || 3022 (mDeviceMode == DEVICE_MODE_DIRECT && mConfig.showTouches)) { 3023 if (mPointerController == NULL) { 3024 mPointerController = getPolicy()->obtainPointerController(getDeviceId()); 3025 } 3026 } else { 3027 mPointerController.clear(); 3028 } 3029 3030 if (viewportChanged || deviceModeChanged) { 3031 ALOGI("Device reconfigured: id=%d, name='%s', size %dx%d, orientation %d, mode %d, " 3032 "display id %d", 3033 getDeviceId(), getDeviceName().string(), mSurfaceWidth, mSurfaceHeight, 3034 mSurfaceOrientation, mDeviceMode, mViewport.displayId); 3035 3036 // Configure X and Y factors. 3037 mXScale = float(mSurfaceWidth) / rawWidth; 3038 mYScale = float(mSurfaceHeight) / rawHeight; 3039 mXTranslate = -mSurfaceLeft; 3040 mYTranslate = -mSurfaceTop; 3041 mXPrecision = 1.0f / mXScale; 3042 mYPrecision = 1.0f / mYScale; 3043 3044 mOrientedRanges.x.axis = AMOTION_EVENT_AXIS_X; 3045 mOrientedRanges.x.source = mSource; 3046 mOrientedRanges.y.axis = AMOTION_EVENT_AXIS_Y; 3047 mOrientedRanges.y.source = mSource; 3048 3049 configureVirtualKeys(); 3050 3051 // Scale factor for terms that are not oriented in a particular axis. 3052 // If the pixels are square then xScale == yScale otherwise we fake it 3053 // by choosing an average. 3054 mGeometricScale = avg(mXScale, mYScale); 3055 3056 // Size of diagonal axis. 3057 float diagonalSize = hypotf(mSurfaceWidth, mSurfaceHeight); 3058 3059 // Size factors. 3060 if (mCalibration.sizeCalibration != Calibration::SIZE_CALIBRATION_NONE) { 3061 if (mRawPointerAxes.touchMajor.valid 3062 && mRawPointerAxes.touchMajor.maxValue != 0) { 3063 mSizeScale = 1.0f / mRawPointerAxes.touchMajor.maxValue; 3064 } else if (mRawPointerAxes.toolMajor.valid 3065 && mRawPointerAxes.toolMajor.maxValue != 0) { 3066 mSizeScale = 1.0f / mRawPointerAxes.toolMajor.maxValue; 3067 } else { 3068 mSizeScale = 0.0f; 3069 } 3070 3071 mOrientedRanges.haveTouchSize = true; 3072 mOrientedRanges.haveToolSize = true; 3073 mOrientedRanges.haveSize = true; 3074 3075 mOrientedRanges.touchMajor.axis = AMOTION_EVENT_AXIS_TOUCH_MAJOR; 3076 mOrientedRanges.touchMajor.source = mSource; 3077 mOrientedRanges.touchMajor.min = 0; 3078 mOrientedRanges.touchMajor.max = diagonalSize; 3079 mOrientedRanges.touchMajor.flat = 0; 3080 mOrientedRanges.touchMajor.fuzz = 0; 3081 mOrientedRanges.touchMajor.resolution = 0; 3082 3083 mOrientedRanges.touchMinor = mOrientedRanges.touchMajor; 3084 mOrientedRanges.touchMinor.axis = AMOTION_EVENT_AXIS_TOUCH_MINOR; 3085 3086 mOrientedRanges.toolMajor.axis = AMOTION_EVENT_AXIS_TOOL_MAJOR; 3087 mOrientedRanges.toolMajor.source = mSource; 3088 mOrientedRanges.toolMajor.min = 0; 3089 mOrientedRanges.toolMajor.max = diagonalSize; 3090 mOrientedRanges.toolMajor.flat = 0; 3091 mOrientedRanges.toolMajor.fuzz = 0; 3092 mOrientedRanges.toolMajor.resolution = 0; 3093 3094 mOrientedRanges.toolMinor = mOrientedRanges.toolMajor; 3095 mOrientedRanges.toolMinor.axis = AMOTION_EVENT_AXIS_TOOL_MINOR; 3096 3097 mOrientedRanges.size.axis = AMOTION_EVENT_AXIS_SIZE; 3098 mOrientedRanges.size.source = mSource; 3099 mOrientedRanges.size.min = 0; 3100 mOrientedRanges.size.max = 1.0; 3101 mOrientedRanges.size.flat = 0; 3102 mOrientedRanges.size.fuzz = 0; 3103 mOrientedRanges.size.resolution = 0; 3104 } else { 3105 mSizeScale = 0.0f; 3106 } 3107 3108 // Pressure factors. 3109 mPressureScale = 0; 3110 if (mCalibration.pressureCalibration == Calibration::PRESSURE_CALIBRATION_PHYSICAL 3111 || mCalibration.pressureCalibration 3112 == Calibration::PRESSURE_CALIBRATION_AMPLITUDE) { 3113 if (mCalibration.havePressureScale) { 3114 mPressureScale = mCalibration.pressureScale; 3115 } else if (mRawPointerAxes.pressure.valid 3116 && mRawPointerAxes.pressure.maxValue != 0) { 3117 mPressureScale = 1.0f / mRawPointerAxes.pressure.maxValue; 3118 } 3119 } 3120 3121 mOrientedRanges.pressure.axis = AMOTION_EVENT_AXIS_PRESSURE; 3122 mOrientedRanges.pressure.source = mSource; 3123 mOrientedRanges.pressure.min = 0; 3124 mOrientedRanges.pressure.max = 1.0; 3125 mOrientedRanges.pressure.flat = 0; 3126 mOrientedRanges.pressure.fuzz = 0; 3127 mOrientedRanges.pressure.resolution = 0; 3128 3129 // Tilt 3130 mTiltXCenter = 0; 3131 mTiltXScale = 0; 3132 mTiltYCenter = 0; 3133 mTiltYScale = 0; 3134 mHaveTilt = mRawPointerAxes.tiltX.valid && mRawPointerAxes.tiltY.valid; 3135 if (mHaveTilt) { 3136 mTiltXCenter = avg(mRawPointerAxes.tiltX.minValue, 3137 mRawPointerAxes.tiltX.maxValue); 3138 mTiltYCenter = avg(mRawPointerAxes.tiltY.minValue, 3139 mRawPointerAxes.tiltY.maxValue); 3140 mTiltXScale = M_PI / 180; 3141 mTiltYScale = M_PI / 180; 3142 3143 mOrientedRanges.haveTilt = true; 3144 3145 mOrientedRanges.tilt.axis = AMOTION_EVENT_AXIS_TILT; 3146 mOrientedRanges.tilt.source = mSource; 3147 mOrientedRanges.tilt.min = 0; 3148 mOrientedRanges.tilt.max = M_PI_2; 3149 mOrientedRanges.tilt.flat = 0; 3150 mOrientedRanges.tilt.fuzz = 0; 3151 mOrientedRanges.tilt.resolution = 0; 3152 } 3153 3154 // Orientation 3155 mOrientationScale = 0; 3156 if (mHaveTilt) { 3157 mOrientedRanges.haveOrientation = true; 3158 3159 mOrientedRanges.orientation.axis = AMOTION_EVENT_AXIS_ORIENTATION; 3160 mOrientedRanges.orientation.source = mSource; 3161 mOrientedRanges.orientation.min = -M_PI; 3162 mOrientedRanges.orientation.max = M_PI; 3163 mOrientedRanges.orientation.flat = 0; 3164 mOrientedRanges.orientation.fuzz = 0; 3165 mOrientedRanges.orientation.resolution = 0; 3166 } else if (mCalibration.orientationCalibration != 3167 Calibration::ORIENTATION_CALIBRATION_NONE) { 3168 if (mCalibration.orientationCalibration 3169 == Calibration::ORIENTATION_CALIBRATION_INTERPOLATED) { 3170 if (mRawPointerAxes.orientation.valid) { 3171 if (mRawPointerAxes.orientation.maxValue > 0) { 3172 mOrientationScale = M_PI_2 / mRawPointerAxes.orientation.maxValue; 3173 } else if (mRawPointerAxes.orientation.minValue < 0) { 3174 mOrientationScale = -M_PI_2 / mRawPointerAxes.orientation.minValue; 3175 } else { 3176 mOrientationScale = 0; 3177 } 3178 } 3179 } 3180 3181 mOrientedRanges.haveOrientation = true; 3182 3183 mOrientedRanges.orientation.axis = AMOTION_EVENT_AXIS_ORIENTATION; 3184 mOrientedRanges.orientation.source = mSource; 3185 mOrientedRanges.orientation.min = -M_PI_2; 3186 mOrientedRanges.orientation.max = M_PI_2; 3187 mOrientedRanges.orientation.flat = 0; 3188 mOrientedRanges.orientation.fuzz = 0; 3189 mOrientedRanges.orientation.resolution = 0; 3190 } 3191 3192 // Distance 3193 mDistanceScale = 0; 3194 if (mCalibration.distanceCalibration != Calibration::DISTANCE_CALIBRATION_NONE) { 3195 if (mCalibration.distanceCalibration 3196 == Calibration::DISTANCE_CALIBRATION_SCALED) { 3197 if (mCalibration.haveDistanceScale) { 3198 mDistanceScale = mCalibration.distanceScale; 3199 } else { 3200 mDistanceScale = 1.0f; 3201 } 3202 } 3203 3204 mOrientedRanges.haveDistance = true; 3205 3206 mOrientedRanges.distance.axis = AMOTION_EVENT_AXIS_DISTANCE; 3207 mOrientedRanges.distance.source = mSource; 3208 mOrientedRanges.distance.min = 3209 mRawPointerAxes.distance.minValue * mDistanceScale; 3210 mOrientedRanges.distance.max = 3211 mRawPointerAxes.distance.maxValue * mDistanceScale; 3212 mOrientedRanges.distance.flat = 0; 3213 mOrientedRanges.distance.fuzz = 3214 mRawPointerAxes.distance.fuzz * mDistanceScale; 3215 mOrientedRanges.distance.resolution = 0; 3216 } 3217 3218 // Compute oriented precision, scales and ranges. 3219 // Note that the maximum value reported is an inclusive maximum value so it is one 3220 // unit less than the total width or height of surface. 3221 switch (mSurfaceOrientation) { 3222 case DISPLAY_ORIENTATION_90: 3223 case DISPLAY_ORIENTATION_270: 3224 mOrientedXPrecision = mYPrecision; 3225 mOrientedYPrecision = mXPrecision; 3226 3227 mOrientedRanges.x.min = mYTranslate; 3228 mOrientedRanges.x.max = mSurfaceHeight + mYTranslate - 1; 3229 mOrientedRanges.x.flat = 0; 3230 mOrientedRanges.x.fuzz = 0; 3231 mOrientedRanges.x.resolution = mRawPointerAxes.y.resolution * mYScale; 3232 3233 mOrientedRanges.y.min = mXTranslate; 3234 mOrientedRanges.y.max = mSurfaceWidth + mXTranslate - 1; 3235 mOrientedRanges.y.flat = 0; 3236 mOrientedRanges.y.fuzz = 0; 3237 mOrientedRanges.y.resolution = mRawPointerAxes.x.resolution * mXScale; 3238 break; 3239 3240 default: 3241 mOrientedXPrecision = mXPrecision; 3242 mOrientedYPrecision = mYPrecision; 3243 3244 mOrientedRanges.x.min = mXTranslate; 3245 mOrientedRanges.x.max = mSurfaceWidth + mXTranslate - 1; 3246 mOrientedRanges.x.flat = 0; 3247 mOrientedRanges.x.fuzz = 0; 3248 mOrientedRanges.x.resolution = mRawPointerAxes.x.resolution * mXScale; 3249 3250 mOrientedRanges.y.min = mYTranslate; 3251 mOrientedRanges.y.max = mSurfaceHeight + mYTranslate - 1; 3252 mOrientedRanges.y.flat = 0; 3253 mOrientedRanges.y.fuzz = 0; 3254 mOrientedRanges.y.resolution = mRawPointerAxes.y.resolution * mYScale; 3255 break; 3256 } 3257 3258 if (mDeviceMode == DEVICE_MODE_POINTER) { 3259 // Compute pointer gesture detection parameters. 3260 float rawDiagonal = hypotf(rawWidth, rawHeight); 3261 float displayDiagonal = hypotf(mSurfaceWidth, mSurfaceHeight); 3262 3263 // Scale movements such that one whole swipe of the touch pad covers a 3264 // given area relative to the diagonal size of the display when no acceleration 3265 // is applied. 3266 // Assume that the touch pad has a square aspect ratio such that movements in 3267 // X and Y of the same number of raw units cover the same physical distance. 3268 mPointerXMovementScale = mConfig.pointerGestureMovementSpeedRatio 3269 * displayDiagonal / rawDiagonal; 3270 mPointerYMovementScale = mPointerXMovementScale; 3271 3272 // Scale zooms to cover a smaller range of the display than movements do. 3273 // This value determines the area around the pointer that is affected by freeform 3274 // pointer gestures. 3275 mPointerXZoomScale = mConfig.pointerGestureZoomSpeedRatio 3276 * displayDiagonal / rawDiagonal; 3277 mPointerYZoomScale = mPointerXZoomScale; 3278 3279 // Max width between pointers to detect a swipe gesture is more than some fraction 3280 // of the diagonal axis of the touch pad. Touches that are wider than this are 3281 // translated into freeform gestures. 3282 mPointerGestureMaxSwipeWidth = 3283 mConfig.pointerGestureSwipeMaxWidthRatio * rawDiagonal; 3284 3285 // Abort current pointer usages because the state has changed. 3286 abortPointerUsage(when, 0 /*policyFlags*/); 3287 } 3288 3289 // Inform the dispatcher about the changes. 3290 *outResetNeeded = true; 3291 bumpGeneration(); 3292 } 3293 } 3294 3295 void TouchInputMapper::dumpSurface(String8& dump) { 3296 dump.appendFormat(INDENT3 "Viewport: displayId=%d, orientation=%d, " 3297 "logicalFrame=[%d, %d, %d, %d], " 3298 "physicalFrame=[%d, %d, %d, %d], " 3299 "deviceSize=[%d, %d]\n", 3300 mViewport.displayId, mViewport.orientation, 3301 mViewport.logicalLeft, mViewport.logicalTop, 3302 mViewport.logicalRight, mViewport.logicalBottom, 3303 mViewport.physicalLeft, mViewport.physicalTop, 3304 mViewport.physicalRight, mViewport.physicalBottom, 3305 mViewport.deviceWidth, mViewport.deviceHeight); 3306 3307 dump.appendFormat(INDENT3 "SurfaceWidth: %dpx\n", mSurfaceWidth); 3308 dump.appendFormat(INDENT3 "SurfaceHeight: %dpx\n", mSurfaceHeight); 3309 dump.appendFormat(INDENT3 "SurfaceLeft: %d\n", mSurfaceLeft); 3310 dump.appendFormat(INDENT3 "SurfaceTop: %d\n", mSurfaceTop); 3311 dump.appendFormat(INDENT3 "SurfaceOrientation: %d\n", mSurfaceOrientation); 3312 } 3313 3314 void TouchInputMapper::configureVirtualKeys() { 3315 Vector<VirtualKeyDefinition> virtualKeyDefinitions; 3316 getEventHub()->getVirtualKeyDefinitions(getDeviceId(), virtualKeyDefinitions); 3317 3318 mVirtualKeys.clear(); 3319 3320 if (virtualKeyDefinitions.size() == 0) { 3321 return; 3322 } 3323 3324 mVirtualKeys.setCapacity(virtualKeyDefinitions.size()); 3325 3326 int32_t touchScreenLeft = mRawPointerAxes.x.minValue; 3327 int32_t touchScreenTop = mRawPointerAxes.y.minValue; 3328 int32_t touchScreenWidth = mRawPointerAxes.x.maxValue - mRawPointerAxes.x.minValue + 1; 3329 int32_t touchScreenHeight = mRawPointerAxes.y.maxValue - mRawPointerAxes.y.minValue + 1; 3330 3331 for (size_t i = 0; i < virtualKeyDefinitions.size(); i++) { 3332 const VirtualKeyDefinition& virtualKeyDefinition = 3333 virtualKeyDefinitions[i]; 3334 3335 mVirtualKeys.add(); 3336 VirtualKey& virtualKey = mVirtualKeys.editTop(); 3337 3338 virtualKey.scanCode = virtualKeyDefinition.scanCode; 3339 int32_t keyCode; 3340 uint32_t flags; 3341 if (getEventHub()->mapKey(getDeviceId(), virtualKey.scanCode, 0, &keyCode, &flags)) { 3342 ALOGW(INDENT "VirtualKey %d: could not obtain key code, ignoring", 3343 virtualKey.scanCode); 3344 mVirtualKeys.pop(); // drop the key 3345 continue; 3346 } 3347 3348 virtualKey.keyCode = keyCode; 3349 virtualKey.flags = flags; 3350 3351 // convert the key definition's display coordinates into touch coordinates for a hit box 3352 int32_t halfWidth = virtualKeyDefinition.width / 2; 3353 int32_t halfHeight = virtualKeyDefinition.height / 2; 3354 3355 virtualKey.hitLeft = (virtualKeyDefinition.centerX - halfWidth) 3356 * touchScreenWidth / mSurfaceWidth + touchScreenLeft; 3357 virtualKey.hitRight= (virtualKeyDefinition.centerX + halfWidth) 3358 * touchScreenWidth / mSurfaceWidth + touchScreenLeft; 3359 virtualKey.hitTop = (virtualKeyDefinition.centerY - halfHeight) 3360 * touchScreenHeight / mSurfaceHeight + touchScreenTop; 3361 virtualKey.hitBottom = (virtualKeyDefinition.centerY + halfHeight) 3362 * touchScreenHeight / mSurfaceHeight + touchScreenTop; 3363 } 3364 } 3365 3366 void TouchInputMapper::dumpVirtualKeys(String8& dump) { 3367 if (!mVirtualKeys.isEmpty()) { 3368 dump.append(INDENT3 "Virtual Keys:\n"); 3369 3370 for (size_t i = 0; i < mVirtualKeys.size(); i++) { 3371 const VirtualKey& virtualKey = mVirtualKeys.itemAt(i); 3372 dump.appendFormat(INDENT4 "%d: scanCode=%d, keyCode=%d, " 3373 "hitLeft=%d, hitRight=%d, hitTop=%d, hitBottom=%d\n", 3374 i, virtualKey.scanCode, virtualKey.keyCode, 3375 virtualKey.hitLeft, virtualKey.hitRight, 3376 virtualKey.hitTop, virtualKey.hitBottom); 3377 } 3378 } 3379 } 3380 3381 void TouchInputMapper::parseCalibration() { 3382 const PropertyMap& in = getDevice()->getConfiguration(); 3383 Calibration& out = mCalibration; 3384 3385 // Size 3386 out.sizeCalibration = Calibration::SIZE_CALIBRATION_DEFAULT; 3387 String8 sizeCalibrationString; 3388 if (in.tryGetProperty(String8("touch.size.calibration"), sizeCalibrationString)) { 3389 if (sizeCalibrationString == "none") { 3390 out.sizeCalibration = Calibration::SIZE_CALIBRATION_NONE; 3391 } else if (sizeCalibrationString == "geometric") { 3392 out.sizeCalibration = Calibration::SIZE_CALIBRATION_GEOMETRIC; 3393 } else if (sizeCalibrationString == "diameter") { 3394 out.sizeCalibration = Calibration::SIZE_CALIBRATION_DIAMETER; 3395 } else if (sizeCalibrationString == "box") { 3396 out.sizeCalibration = Calibration::SIZE_CALIBRATION_BOX; 3397 } else if (sizeCalibrationString == "area") { 3398 out.sizeCalibration = Calibration::SIZE_CALIBRATION_AREA; 3399 } else if (sizeCalibrationString != "default") { 3400 ALOGW("Invalid value for touch.size.calibration: '%s'", 3401 sizeCalibrationString.string()); 3402 } 3403 } 3404 3405 out.haveSizeScale = in.tryGetProperty(String8("touch.size.scale"), 3406 out.sizeScale); 3407 out.haveSizeBias = in.tryGetProperty(String8("touch.size.bias"), 3408 out.sizeBias); 3409 out.haveSizeIsSummed = in.tryGetProperty(String8("touch.size.isSummed"), 3410 out.sizeIsSummed); 3411 3412 // Pressure 3413 out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_DEFAULT; 3414 String8 pressureCalibrationString; 3415 if (in.tryGetProperty(String8("touch.pressure.calibration"), pressureCalibrationString)) { 3416 if (pressureCalibrationString == "none") { 3417 out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_NONE; 3418 } else if (pressureCalibrationString == "physical") { 3419 out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_PHYSICAL; 3420 } else if (pressureCalibrationString == "amplitude") { 3421 out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_AMPLITUDE; 3422 } else if (pressureCalibrationString != "default") { 3423 ALOGW("Invalid value for touch.pressure.calibration: '%s'", 3424 pressureCalibrationString.string()); 3425 } 3426 } 3427 3428 out.havePressureScale = in.tryGetProperty(String8("touch.pressure.scale"), 3429 out.pressureScale); 3430 3431 // Orientation 3432 out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_DEFAULT; 3433 String8 orientationCalibrationString; 3434 if (in.tryGetProperty(String8("touch.orientation.calibration"), orientationCalibrationString)) { 3435 if (orientationCalibrationString == "none") { 3436 out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE; 3437 } else if (orientationCalibrationString == "interpolated") { 3438 out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED; 3439 } else if (orientationCalibrationString == "vector") { 3440 out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_VECTOR; 3441 } else if (orientationCalibrationString != "default") { 3442 ALOGW("Invalid value for touch.orientation.calibration: '%s'", 3443 orientationCalibrationString.string()); 3444 } 3445 } 3446 3447 // Distance 3448 out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_DEFAULT; 3449 String8 distanceCalibrationString; 3450 if (in.tryGetProperty(String8("touch.distance.calibration"), distanceCalibrationString)) { 3451 if (distanceCalibrationString == "none") { 3452 out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_NONE; 3453 } else if (distanceCalibrationString == "scaled") { 3454 out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_SCALED; 3455 } else if (distanceCalibrationString != "default") { 3456 ALOGW("Invalid value for touch.distance.calibration: '%s'", 3457 distanceCalibrationString.string()); 3458 } 3459 } 3460 3461 out.haveDistanceScale = in.tryGetProperty(String8("touch.distance.scale"), 3462 out.distanceScale); 3463 3464 out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_DEFAULT; 3465 String8 coverageCalibrationString; 3466 if (in.tryGetProperty(String8("touch.coverage.calibration"), coverageCalibrationString)) { 3467 if (coverageCalibrationString == "none") { 3468 out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_NONE; 3469 } else if (coverageCalibrationString == "box") { 3470 out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_BOX; 3471 } else if (coverageCalibrationString != "default") { 3472 ALOGW("Invalid value for touch.coverage.calibration: '%s'", 3473 coverageCalibrationString.string()); 3474 } 3475 } 3476 } 3477 3478 void TouchInputMapper::resolveCalibration() { 3479 // Size 3480 if (mRawPointerAxes.touchMajor.valid || mRawPointerAxes.toolMajor.valid) { 3481 if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_DEFAULT) { 3482 mCalibration.sizeCalibration = Calibration::SIZE_CALIBRATION_GEOMETRIC; 3483 } 3484 } else { 3485 mCalibration.sizeCalibration = Calibration::SIZE_CALIBRATION_NONE; 3486 } 3487 3488 // Pressure 3489 if (mRawPointerAxes.pressure.valid) { 3490 if (mCalibration.pressureCalibration == Calibration::PRESSURE_CALIBRATION_DEFAULT) { 3491 mCalibration.pressureCalibration = Calibration::PRESSURE_CALIBRATION_PHYSICAL; 3492 } 3493 } else { 3494 mCalibration.pressureCalibration = Calibration::PRESSURE_CALIBRATION_NONE; 3495 } 3496 3497 // Orientation 3498 if (mRawPointerAxes.orientation.valid) { 3499 if (mCalibration.orientationCalibration == Calibration::ORIENTATION_CALIBRATION_DEFAULT) { 3500 mCalibration.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED; 3501 } 3502 } else { 3503 mCalibration.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE; 3504 } 3505 3506 // Distance 3507 if (mRawPointerAxes.distance.valid) { 3508 if (mCalibration.distanceCalibration == Calibration::DISTANCE_CALIBRATION_DEFAULT) { 3509 mCalibration.distanceCalibration = Calibration::DISTANCE_CALIBRATION_SCALED; 3510 } 3511 } else { 3512 mCalibration.distanceCalibration = Calibration::DISTANCE_CALIBRATION_NONE; 3513 } 3514 3515 // Coverage 3516 if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_DEFAULT) { 3517 mCalibration.coverageCalibration = Calibration::COVERAGE_CALIBRATION_NONE; 3518 } 3519 } 3520 3521 void TouchInputMapper::dumpCalibration(String8& dump) { 3522 dump.append(INDENT3 "Calibration:\n"); 3523 3524 // Size 3525 switch (mCalibration.sizeCalibration) { 3526 case Calibration::SIZE_CALIBRATION_NONE: 3527 dump.append(INDENT4 "touch.size.calibration: none\n"); 3528 break; 3529 case Calibration::SIZE_CALIBRATION_GEOMETRIC: 3530 dump.append(INDENT4 "touch.size.calibration: geometric\n"); 3531 break; 3532 case Calibration::SIZE_CALIBRATION_DIAMETER: 3533 dump.append(INDENT4 "touch.size.calibration: diameter\n"); 3534 break; 3535 case Calibration::SIZE_CALIBRATION_BOX: 3536 dump.append(INDENT4 "touch.size.calibration: box\n"); 3537 break; 3538 case Calibration::SIZE_CALIBRATION_AREA: 3539 dump.append(INDENT4 "touch.size.calibration: area\n"); 3540 break; 3541 default: 3542 ALOG_ASSERT(false); 3543 } 3544 3545 if (mCalibration.haveSizeScale) { 3546 dump.appendFormat(INDENT4 "touch.size.scale: %0.3f\n", 3547 mCalibration.sizeScale); 3548 } 3549 3550 if (mCalibration.haveSizeBias) { 3551 dump.appendFormat(INDENT4 "touch.size.bias: %0.3f\n", 3552 mCalibration.sizeBias); 3553 } 3554 3555 if (mCalibration.haveSizeIsSummed) { 3556 dump.appendFormat(INDENT4 "touch.size.isSummed: %s\n", 3557 toString(mCalibration.sizeIsSummed)); 3558 } 3559 3560 // Pressure 3561 switch (mCalibration.pressureCalibration) { 3562 case Calibration::PRESSURE_CALIBRATION_NONE: 3563 dump.append(INDENT4 "touch.pressure.calibration: none\n"); 3564 break; 3565 case Calibration::PRESSURE_CALIBRATION_PHYSICAL: 3566 dump.append(INDENT4 "touch.pressure.calibration: physical\n"); 3567 break; 3568 case Calibration::PRESSURE_CALIBRATION_AMPLITUDE: 3569 dump.append(INDENT4 "touch.pressure.calibration: amplitude\n"); 3570 break; 3571 default: 3572 ALOG_ASSERT(false); 3573 } 3574 3575 if (mCalibration.havePressureScale) { 3576 dump.appendFormat(INDENT4 "touch.pressure.scale: %0.3f\n", 3577 mCalibration.pressureScale); 3578 } 3579 3580 // Orientation 3581 switch (mCalibration.orientationCalibration) { 3582 case Calibration::ORIENTATION_CALIBRATION_NONE: 3583 dump.append(INDENT4 "touch.orientation.calibration: none\n"); 3584 break; 3585 case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED: 3586 dump.append(INDENT4 "touch.orientation.calibration: interpolated\n"); 3587 break; 3588 case Calibration::ORIENTATION_CALIBRATION_VECTOR: 3589 dump.append(INDENT4 "touch.orientation.calibration: vector\n"); 3590 break; 3591 default: 3592 ALOG_ASSERT(false); 3593 } 3594 3595 // Distance 3596 switch (mCalibration.distanceCalibration) { 3597 case Calibration::DISTANCE_CALIBRATION_NONE: 3598 dump.append(INDENT4 "touch.distance.calibration: none\n"); 3599 break; 3600 case Calibration::DISTANCE_CALIBRATION_SCALED: 3601 dump.append(INDENT4 "touch.distance.calibration: scaled\n"); 3602 break; 3603 default: 3604 ALOG_ASSERT(false); 3605 } 3606 3607 if (mCalibration.haveDistanceScale) { 3608 dump.appendFormat(INDENT4 "touch.distance.scale: %0.3f\n", 3609 mCalibration.distanceScale); 3610 } 3611 3612 switch (mCalibration.coverageCalibration) { 3613 case Calibration::COVERAGE_CALIBRATION_NONE: 3614 dump.append(INDENT4 "touch.coverage.calibration: none\n"); 3615 break; 3616 case Calibration::COVERAGE_CALIBRATION_BOX: 3617 dump.append(INDENT4 "touch.coverage.calibration: box\n"); 3618 break; 3619 default: 3620 ALOG_ASSERT(false); 3621 } 3622 } 3623 3624 void TouchInputMapper::reset(nsecs_t when) { 3625 mCursorButtonAccumulator.reset(getDevice()); 3626 mCursorScrollAccumulator.reset(getDevice()); 3627 mTouchButtonAccumulator.reset(getDevice()); 3628 3629 mPointerVelocityControl.reset(); 3630 mWheelXVelocityControl.reset(); 3631 mWheelYVelocityControl.reset(); 3632 3633 mCurrentRawPointerData.clear(); 3634 mLastRawPointerData.clear(); 3635 mCurrentCookedPointerData.clear(); 3636 mLastCookedPointerData.clear(); 3637 mCurrentButtonState = 0; 3638 mLastButtonState = 0; 3639 mCurrentRawVScroll = 0; 3640 mCurrentRawHScroll = 0; 3641 mCurrentFingerIdBits.clear(); 3642 mLastFingerIdBits.clear(); 3643 mCurrentStylusIdBits.clear(); 3644 mLastStylusIdBits.clear(); 3645 mCurrentMouseIdBits.clear(); 3646 mLastMouseIdBits.clear(); 3647 mPointerUsage = POINTER_USAGE_NONE; 3648 mSentHoverEnter = false; 3649 mDownTime = 0; 3650 3651 mCurrentVirtualKey.down = false; 3652 3653 mPointerGesture.reset(); 3654 mPointerSimple.reset(); 3655 3656 if (mPointerController != NULL) { 3657 mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); 3658 mPointerController->clearSpots(); 3659 } 3660 3661 InputMapper::reset(when); 3662 } 3663 3664 void TouchInputMapper::process(const RawEvent* rawEvent) { 3665 mCursorButtonAccumulator.process(rawEvent); 3666 mCursorScrollAccumulator.process(rawEvent); 3667 mTouchButtonAccumulator.process(rawEvent); 3668 3669 if (rawEvent->type == EV_SYN && rawEvent->code == SYN_REPORT) { 3670 sync(rawEvent->when); 3671 } 3672 } 3673 3674 void TouchInputMapper::sync(nsecs_t when) { 3675 // Sync button state. 3676 mCurrentButtonState = mTouchButtonAccumulator.getButtonState() 3677 | mCursorButtonAccumulator.getButtonState(); 3678 3679 // Sync scroll state. 3680 mCurrentRawVScroll = mCursorScrollAccumulator.getRelativeVWheel(); 3681 mCurrentRawHScroll = mCursorScrollAccumulator.getRelativeHWheel(); 3682 mCursorScrollAccumulator.finishSync(); 3683 3684 // Sync touch state. 3685 bool havePointerIds = true; 3686 mCurrentRawPointerData.clear(); 3687 syncTouch(when, &havePointerIds); 3688 3689 #if DEBUG_RAW_EVENTS 3690 if (!havePointerIds) { 3691 ALOGD("syncTouch: pointerCount %d -> %d, no pointer ids", 3692 mLastRawPointerData.pointerCount, 3693 mCurrentRawPointerData.pointerCount); 3694 } else { 3695 ALOGD("syncTouch: pointerCount %d -> %d, touching ids 0x%08x -> 0x%08x, " 3696 "hovering ids 0x%08x -> 0x%08x", 3697 mLastRawPointerData.pointerCount, 3698 mCurrentRawPointerData.pointerCount, 3699 mLastRawPointerData.touchingIdBits.value, 3700 mCurrentRawPointerData.touchingIdBits.value, 3701 mLastRawPointerData.hoveringIdBits.value, 3702 mCurrentRawPointerData.hoveringIdBits.value); 3703 } 3704 #endif 3705 3706 // Reset state that we will compute below. 3707 mCurrentFingerIdBits.clear(); 3708 mCurrentStylusIdBits.clear(); 3709 mCurrentMouseIdBits.clear(); 3710 mCurrentCookedPointerData.clear(); 3711 3712 if (mDeviceMode == DEVICE_MODE_DISABLED) { 3713 // Drop all input if the device is disabled. 3714 mCurrentRawPointerData.clear(); 3715 mCurrentButtonState = 0; 3716 } else { 3717 // Preprocess pointer data. 3718 if (!havePointerIds) { 3719 assignPointerIds(); 3720 } 3721 3722 // Handle policy on initial down or hover events. 3723 uint32_t policyFlags = 0; 3724 bool initialDown = mLastRawPointerData.pointerCount == 0 3725 && mCurrentRawPointerData.pointerCount != 0; 3726 bool buttonsPressed = mCurrentButtonState & ~mLastButtonState; 3727 if (initialDown || buttonsPressed) { 3728 // If this is a touch screen, hide the pointer on an initial down. 3729 if (mDeviceMode == DEVICE_MODE_DIRECT) { 3730 getContext()->fadePointer(); 3731 } 3732 3733 // Initial downs on external touch devices should wake the device. 3734 // We don't do this for internal touch screens to prevent them from waking 3735 // up in your pocket. 3736 // TODO: Use the input device configuration to control this behavior more finely. 3737 if (getDevice()->isExternal()) { 3738 policyFlags |= POLICY_FLAG_WAKE_DROPPED; 3739 } 3740 } 3741 3742 // Synthesize key down from raw buttons if needed. 3743 synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_DOWN, when, getDeviceId(), mSource, 3744 policyFlags, mLastButtonState, mCurrentButtonState); 3745 3746 // Consume raw off-screen touches before cooking pointer data. 3747 // If touches are consumed, subsequent code will not receive any pointer data. 3748 if (consumeRawTouches(when, policyFlags)) { 3749 mCurrentRawPointerData.clear(); 3750 } 3751 3752 // Cook pointer data. This call populates the mCurrentCookedPointerData structure 3753 // with cooked pointer data that has the same ids and indices as the raw data. 3754 // The following code can use either the raw or cooked data, as needed. 3755 cookPointerData(); 3756 3757 // Dispatch the touches either directly or by translation through a pointer on screen. 3758 if (mDeviceMode == DEVICE_MODE_POINTER) { 3759 for (BitSet32 idBits(mCurrentRawPointerData.touchingIdBits); !idBits.isEmpty(); ) { 3760 uint32_t id = idBits.clearFirstMarkedBit(); 3761 const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); 3762 if (pointer.toolType == AMOTION_EVENT_TOOL_TYPE_STYLUS 3763 || pointer.toolType == AMOTION_EVENT_TOOL_TYPE_ERASER) { 3764 mCurrentStylusIdBits.markBit(id); 3765 } else if (pointer.toolType == AMOTION_EVENT_TOOL_TYPE_FINGER 3766 || pointer.toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN) { 3767 mCurrentFingerIdBits.markBit(id); 3768 } else if (pointer.toolType == AMOTION_EVENT_TOOL_TYPE_MOUSE) { 3769 mCurrentMouseIdBits.markBit(id); 3770 } 3771 } 3772 for (BitSet32 idBits(mCurrentRawPointerData.hoveringIdBits); !idBits.isEmpty(); ) { 3773 uint32_t id = idBits.clearFirstMarkedBit(); 3774 const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); 3775 if (pointer.toolType == AMOTION_EVENT_TOOL_TYPE_STYLUS 3776 || pointer.toolType == AMOTION_EVENT_TOOL_TYPE_ERASER) { 3777 mCurrentStylusIdBits.markBit(id); 3778 } 3779 } 3780 3781 // Stylus takes precedence over all tools, then mouse, then finger. 3782 PointerUsage pointerUsage = mPointerUsage; 3783 if (!mCurrentStylusIdBits.isEmpty()) { 3784 mCurrentMouseIdBits.clear(); 3785 mCurrentFingerIdBits.clear(); 3786 pointerUsage = POINTER_USAGE_STYLUS; 3787 } else if (!mCurrentMouseIdBits.isEmpty()) { 3788 mCurrentFingerIdBits.clear(); 3789 pointerUsage = POINTER_USAGE_MOUSE; 3790 } else if (!mCurrentFingerIdBits.isEmpty() || isPointerDown(mCurrentButtonState)) { 3791 pointerUsage = POINTER_USAGE_GESTURES; 3792 } 3793 3794 dispatchPointerUsage(when, policyFlags, pointerUsage); 3795 } else { 3796 if (mDeviceMode == DEVICE_MODE_DIRECT 3797 && mConfig.showTouches && mPointerController != NULL) { 3798 mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_SPOT); 3799 mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); 3800 3801 mPointerController->setButtonState(mCurrentButtonState); 3802 mPointerController->setSpots(mCurrentCookedPointerData.pointerCoords, 3803 mCurrentCookedPointerData.idToIndex, 3804 mCurrentCookedPointerData.touchingIdBits); 3805 } 3806 3807 dispatchHoverExit(when, policyFlags); 3808 dispatchTouches(when, policyFlags); 3809 dispatchHoverEnterAndMove(when, policyFlags); 3810 } 3811 3812 // Synthesize key up from raw buttons if needed. 3813 synthesizeButtonKeys(getContext(), AKEY_EVENT_ACTION_UP, when, getDeviceId(), mSource, 3814 policyFlags, mLastButtonState, mCurrentButtonState); 3815 } 3816 3817 // Copy current touch to last touch in preparation for the next cycle. 3818 mLastRawPointerData.copyFrom(mCurrentRawPointerData); 3819 mLastCookedPointerData.copyFrom(mCurrentCookedPointerData); 3820 mLastButtonState = mCurrentButtonState; 3821 mLastFingerIdBits = mCurrentFingerIdBits; 3822 mLastStylusIdBits = mCurrentStylusIdBits; 3823 mLastMouseIdBits = mCurrentMouseIdBits; 3824 3825 // Clear some transient state. 3826 mCurrentRawVScroll = 0; 3827 mCurrentRawHScroll = 0; 3828 } 3829 3830 void TouchInputMapper::timeoutExpired(nsecs_t when) { 3831 if (mDeviceMode == DEVICE_MODE_POINTER) { 3832 if (mPointerUsage == POINTER_USAGE_GESTURES) { 3833 dispatchPointerGestures(when, 0 /*policyFlags*/, true /*isTimeout*/); 3834 } 3835 } 3836 } 3837 3838 bool TouchInputMapper::consumeRawTouches(nsecs_t when, uint32_t policyFlags) { 3839 // Check for release of a virtual key. 3840 if (mCurrentVirtualKey.down) { 3841 if (mCurrentRawPointerData.touchingIdBits.isEmpty()) { 3842 // Pointer went up while virtual key was down. 3843 mCurrentVirtualKey.down = false; 3844 if (!mCurrentVirtualKey.ignored) { 3845 #if DEBUG_VIRTUAL_KEYS 3846 ALOGD("VirtualKeys: Generating key up: keyCode=%d, scanCode=%d", 3847 mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode); 3848 #endif 3849 dispatchVirtualKey(when, policyFlags, 3850 AKEY_EVENT_ACTION_UP, 3851 AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY); 3852 } 3853 return true; 3854 } 3855 3856 if (mCurrentRawPointerData.touchingIdBits.count() == 1) { 3857 uint32_t id = mCurrentRawPointerData.touchingIdBits.firstMarkedBit(); 3858 const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); 3859 const VirtualKey* virtualKey = findVirtualKeyHit(pointer.x, pointer.y); 3860 if (virtualKey && virtualKey->keyCode == mCurrentVirtualKey.keyCode) { 3861 // Pointer is still within the space of the virtual key. 3862 return true; 3863 } 3864 } 3865 3866 // Pointer left virtual key area or another pointer also went down. 3867 // Send key cancellation but do not consume the touch yet. 3868 // This is useful when the user swipes through from the virtual key area 3869 // into the main display surface. 3870 mCurrentVirtualKey.down = false; 3871 if (!mCurrentVirtualKey.ignored) { 3872 #if DEBUG_VIRTUAL_KEYS 3873 ALOGD("VirtualKeys: Canceling key: keyCode=%d, scanCode=%d", 3874 mCurrentVirtualKey.keyCode, mCurrentVirtualKey.scanCode); 3875 #endif 3876 dispatchVirtualKey(when, policyFlags, 3877 AKEY_EVENT_ACTION_UP, 3878 AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY 3879 | AKEY_EVENT_FLAG_CANCELED); 3880 } 3881 } 3882 3883 if (mLastRawPointerData.touchingIdBits.isEmpty() 3884 && !mCurrentRawPointerData.touchingIdBits.isEmpty()) { 3885 // Pointer just went down. Check for virtual key press or off-screen touches. 3886 uint32_t id = mCurrentRawPointerData.touchingIdBits.firstMarkedBit(); 3887 const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); 3888 if (!isPointInsideSurface(pointer.x, pointer.y)) { 3889 // If exactly one pointer went down, check for virtual key hit. 3890 // Otherwise we will drop the entire stroke. 3891 if (mCurrentRawPointerData.touchingIdBits.count() == 1) { 3892 const VirtualKey* virtualKey = findVirtualKeyHit(pointer.x, pointer.y); 3893 if (virtualKey) { 3894 mCurrentVirtualKey.down = true; 3895 mCurrentVirtualKey.downTime = when; 3896 mCurrentVirtualKey.keyCode = virtualKey->keyCode; 3897 mCurrentVirtualKey.scanCode = virtualKey->scanCode; 3898 mCurrentVirtualKey.ignored = mContext->shouldDropVirtualKey( 3899 when, getDevice(), virtualKey->keyCode, virtualKey->scanCode); 3900 3901 if (!mCurrentVirtualKey.ignored) { 3902 #if DEBUG_VIRTUAL_KEYS 3903 ALOGD("VirtualKeys: Generating key down: keyCode=%d, scanCode=%d", 3904 mCurrentVirtualKey.keyCode, 3905 mCurrentVirtualKey.scanCode); 3906 #endif 3907 dispatchVirtualKey(when, policyFlags, 3908 AKEY_EVENT_ACTION_DOWN, 3909 AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY); 3910 } 3911 } 3912 } 3913 return true; 3914 } 3915 } 3916 3917 // Disable all virtual key touches that happen within a short time interval of the 3918 // most recent touch within the screen area. The idea is to filter out stray 3919 // virtual key presses when interacting with the touch screen. 3920 // 3921 // Problems we're trying to solve: 3922 // 3923 // 1. While scrolling a list or dragging the window shade, the user swipes down into a 3924 // virtual key area that is implemented by a separate touch panel and accidentally 3925 // triggers a virtual key. 3926 // 3927 // 2. While typing in the on screen keyboard, the user taps slightly outside the screen 3928 // area and accidentally triggers a virtual key. This often happens when virtual keys 3929 // are layed out below the screen near to where the on screen keyboard's space bar 3930 // is displayed. 3931 if (mConfig.virtualKeyQuietTime > 0 && !mCurrentRawPointerData.touchingIdBits.isEmpty()) { 3932 mContext->disableVirtualKeysUntil(when + mConfig.virtualKeyQuietTime); 3933 } 3934 return false; 3935 } 3936 3937 void TouchInputMapper::dispatchVirtualKey(nsecs_t when, uint32_t policyFlags, 3938 int32_t keyEventAction, int32_t keyEventFlags) { 3939 int32_t keyCode = mCurrentVirtualKey.keyCode; 3940 int32_t scanCode = mCurrentVirtualKey.scanCode; 3941 nsecs_t downTime = mCurrentVirtualKey.downTime; 3942 int32_t metaState = mContext->getGlobalMetaState(); 3943 policyFlags |= POLICY_FLAG_VIRTUAL; 3944 3945 NotifyKeyArgs args(when, getDeviceId(), AINPUT_SOURCE_KEYBOARD, policyFlags, 3946 keyEventAction, keyEventFlags, keyCode, scanCode, metaState, downTime); 3947 getListener()->notifyKey(&args); 3948 } 3949 3950 void TouchInputMapper::dispatchTouches(nsecs_t when, uint32_t policyFlags) { 3951 BitSet32 currentIdBits = mCurrentCookedPointerData.touchingIdBits; 3952 BitSet32 lastIdBits = mLastCookedPointerData.touchingIdBits; 3953 int32_t metaState = getContext()->getGlobalMetaState(); 3954 int32_t buttonState = mCurrentButtonState; 3955 3956 if (currentIdBits == lastIdBits) { 3957 if (!currentIdBits.isEmpty()) { 3958 // No pointer id changes so this is a move event. 3959 // The listener takes care of batching moves so we don't have to deal with that here. 3960 dispatchMotion(when, policyFlags, mSource, 3961 AMOTION_EVENT_ACTION_MOVE, 0, metaState, buttonState, 3962 AMOTION_EVENT_EDGE_FLAG_NONE, 3963 mCurrentCookedPointerData.pointerProperties, 3964 mCurrentCookedPointerData.pointerCoords, 3965 mCurrentCookedPointerData.idToIndex, 3966 currentIdBits, -1, 3967 mOrientedXPrecision, mOrientedYPrecision, mDownTime); 3968 } 3969 } else { 3970 // There may be pointers going up and pointers going down and pointers moving 3971 // all at the same time. 3972 BitSet32 upIdBits(lastIdBits.value & ~currentIdBits.value); 3973 BitSet32 downIdBits(currentIdBits.value & ~lastIdBits.value); 3974 BitSet32 moveIdBits(lastIdBits.value & currentIdBits.value); 3975 BitSet32 dispatchedIdBits(lastIdBits.value); 3976 3977 // Update last coordinates of pointers that have moved so that we observe the new 3978 // pointer positions at the same time as other pointers that have just gone up. 3979 bool moveNeeded = updateMovedPointers( 3980 mCurrentCookedPointerData.pointerProperties, 3981 mCurrentCookedPointerData.pointerCoords, 3982 mCurrentCookedPointerData.idToIndex, 3983 mLastCookedPointerData.pointerProperties, 3984 mLastCookedPointerData.pointerCoords, 3985 mLastCookedPointerData.idToIndex, 3986 moveIdBits); 3987 if (buttonState != mLastButtonState) { 3988 moveNeeded = true; 3989 } 3990 3991 // Dispatch pointer up events. 3992 while (!upIdBits.isEmpty()) { 3993 uint32_t upId = upIdBits.clearFirstMarkedBit(); 3994 3995 dispatchMotion(when, policyFlags, mSource, 3996 AMOTION_EVENT_ACTION_POINTER_UP, 0, metaState, buttonState, 0, 3997 mLastCookedPointerData.pointerProperties, 3998 mLastCookedPointerData.pointerCoords, 3999 mLastCookedPointerData.idToIndex, 4000 dispatchedIdBits, upId, 4001 mOrientedXPrecision, mOrientedYPrecision, mDownTime); 4002 dispatchedIdBits.clearBit(upId); 4003 } 4004 4005 // Dispatch move events if any of the remaining pointers moved from their old locations. 4006 // Although applications receive new locations as part of individual pointer up 4007 // events, they do not generally handle them except when presented in a move event. 4008 if (moveNeeded) { 4009 ALOG_ASSERT(moveIdBits.value == dispatchedIdBits.value); 4010 dispatchMotion(when, policyFlags, mSource, 4011 AMOTION_EVENT_ACTION_MOVE, 0, metaState, buttonState, 0, 4012 mCurrentCookedPointerData.pointerProperties, 4013 mCurrentCookedPointerData.pointerCoords, 4014 mCurrentCookedPointerData.idToIndex, 4015 dispatchedIdBits, -1, 4016 mOrientedXPrecision, mOrientedYPrecision, mDownTime); 4017 } 4018 4019 // Dispatch pointer down events using the new pointer locations. 4020 while (!downIdBits.isEmpty()) { 4021 uint32_t downId = downIdBits.clearFirstMarkedBit(); 4022 dispatchedIdBits.markBit(downId); 4023 4024 if (dispatchedIdBits.count() == 1) { 4025 // First pointer is going down. Set down time. 4026 mDownTime = when; 4027 } 4028 4029 dispatchMotion(when, policyFlags, mSource, 4030 AMOTION_EVENT_ACTION_POINTER_DOWN, 0, metaState, buttonState, 0, 4031 mCurrentCookedPointerData.pointerProperties, 4032 mCurrentCookedPointerData.pointerCoords, 4033 mCurrentCookedPointerData.idToIndex, 4034 dispatchedIdBits, downId, 4035 mOrientedXPrecision, mOrientedYPrecision, mDownTime); 4036 } 4037 } 4038 } 4039 4040 void TouchInputMapper::dispatchHoverExit(nsecs_t when, uint32_t policyFlags) { 4041 if (mSentHoverEnter && 4042 (mCurrentCookedPointerData.hoveringIdBits.isEmpty() 4043 || !mCurrentCookedPointerData.touchingIdBits.isEmpty())) { 4044 int32_t metaState = getContext()->getGlobalMetaState(); 4045 dispatchMotion(when, policyFlags, mSource, 4046 AMOTION_EVENT_ACTION_HOVER_EXIT, 0, metaState, mLastButtonState, 0, 4047 mLastCookedPointerData.pointerProperties, 4048 mLastCookedPointerData.pointerCoords, 4049 mLastCookedPointerData.idToIndex, 4050 mLastCookedPointerData.hoveringIdBits, -1, 4051 mOrientedXPrecision, mOrientedYPrecision, mDownTime); 4052 mSentHoverEnter = false; 4053 } 4054 } 4055 4056 void TouchInputMapper::dispatchHoverEnterAndMove(nsecs_t when, uint32_t policyFlags) { 4057 if (mCurrentCookedPointerData.touchingIdBits.isEmpty() 4058 && !mCurrentCookedPointerData.hoveringIdBits.isEmpty()) { 4059 int32_t metaState = getContext()->getGlobalMetaState(); 4060 if (!mSentHoverEnter) { 4061 dispatchMotion(when, policyFlags, mSource, 4062 AMOTION_EVENT_ACTION_HOVER_ENTER, 0, metaState, mCurrentButtonState, 0, 4063 mCurrentCookedPointerData.pointerProperties, 4064 mCurrentCookedPointerData.pointerCoords, 4065 mCurrentCookedPointerData.idToIndex, 4066 mCurrentCookedPointerData.hoveringIdBits, -1, 4067 mOrientedXPrecision, mOrientedYPrecision, mDownTime); 4068 mSentHoverEnter = true; 4069 } 4070 4071 dispatchMotion(when, policyFlags, mSource, 4072 AMOTION_EVENT_ACTION_HOVER_MOVE, 0, metaState, mCurrentButtonState, 0, 4073 mCurrentCookedPointerData.pointerProperties, 4074 mCurrentCookedPointerData.pointerCoords, 4075 mCurrentCookedPointerData.idToIndex, 4076 mCurrentCookedPointerData.hoveringIdBits, -1, 4077 mOrientedXPrecision, mOrientedYPrecision, mDownTime); 4078 } 4079 } 4080 4081 void TouchInputMapper::cookPointerData() { 4082 uint32_t currentPointerCount = mCurrentRawPointerData.pointerCount; 4083 4084 mCurrentCookedPointerData.clear(); 4085 mCurrentCookedPointerData.pointerCount = currentPointerCount; 4086 mCurrentCookedPointerData.hoveringIdBits = mCurrentRawPointerData.hoveringIdBits; 4087 mCurrentCookedPointerData.touchingIdBits = mCurrentRawPointerData.touchingIdBits; 4088 4089 // Walk through the the active pointers and map device coordinates onto 4090 // surface coordinates and adjust for display orientation. 4091 for (uint32_t i = 0; i < currentPointerCount; i++) { 4092 const RawPointerData::Pointer& in = mCurrentRawPointerData.pointers[i]; 4093 4094 // Size 4095 float touchMajor, touchMinor, toolMajor, toolMinor, size; 4096 switch (mCalibration.sizeCalibration) { 4097 case Calibration::SIZE_CALIBRATION_GEOMETRIC: 4098 case Calibration::SIZE_CALIBRATION_DIAMETER: 4099 case Calibration::SIZE_CALIBRATION_BOX: 4100 case Calibration::SIZE_CALIBRATION_AREA: 4101 if (mRawPointerAxes.touchMajor.valid && mRawPointerAxes.toolMajor.valid) { 4102 touchMajor = in.touchMajor; 4103 touchMinor = mRawPointerAxes.touchMinor.valid ? in.touchMinor : in.touchMajor; 4104 toolMajor = in.toolMajor; 4105 toolMinor = mRawPointerAxes.toolMinor.valid ? in.toolMinor : in.toolMajor; 4106 size = mRawPointerAxes.touchMinor.valid 4107 ? avg(in.touchMajor, in.touchMinor) : in.touchMajor; 4108 } else if (mRawPointerAxes.touchMajor.valid) { 4109 toolMajor = touchMajor = in.touchMajor; 4110 toolMinor = touchMinor = mRawPointerAxes.touchMinor.valid 4111 ? in.touchMinor : in.touchMajor; 4112 size = mRawPointerAxes.touchMinor.valid 4113 ? avg(in.touchMajor, in.touchMinor) : in.touchMajor; 4114 } else if (mRawPointerAxes.toolMajor.valid) { 4115 touchMajor = toolMajor = in.toolMajor; 4116 touchMinor = toolMinor = mRawPointerAxes.toolMinor.valid 4117 ? in.toolMinor : in.toolMajor; 4118 size = mRawPointerAxes.toolMinor.valid 4119 ? avg(in.toolMajor, in.toolMinor) : in.toolMajor; 4120 } else { 4121 ALOG_ASSERT(false, "No touch or tool axes. " 4122 "Size calibration should have been resolved to NONE."); 4123 touchMajor = 0; 4124 touchMinor = 0; 4125 toolMajor = 0; 4126 toolMinor = 0; 4127 size = 0; 4128 } 4129 4130 if (mCalibration.haveSizeIsSummed && mCalibration.sizeIsSummed) { 4131 uint32_t touchingCount = mCurrentRawPointerData.touchingIdBits.count(); 4132 if (touchingCount > 1) { 4133 touchMajor /= touchingCount; 4134 touchMinor /= touchingCount; 4135 toolMajor /= touchingCount; 4136 toolMinor /= touchingCount; 4137 size /= touchingCount; 4138 } 4139 } 4140 4141 if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_GEOMETRIC) { 4142 touchMajor *= mGeometricScale; 4143 touchMinor *= mGeometricScale; 4144 toolMajor *= mGeometricScale; 4145 toolMinor *= mGeometricScale; 4146 } else if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_AREA) { 4147 touchMajor = touchMajor > 0 ? sqrtf(touchMajor) : 0; 4148 touchMinor = touchMajor; 4149 toolMajor = toolMajor > 0 ? sqrtf(toolMajor) : 0; 4150 toolMinor = toolMajor; 4151 } else if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_DIAMETER) { 4152 touchMinor = touchMajor; 4153 toolMinor = toolMajor; 4154 } 4155 4156 mCalibration.applySizeScaleAndBias(&touchMajor); 4157 mCalibration.applySizeScaleAndBias(&touchMinor); 4158 mCalibration.applySizeScaleAndBias(&toolMajor); 4159 mCalibration.applySizeScaleAndBias(&toolMinor); 4160 size *= mSizeScale; 4161 break; 4162 default: 4163 touchMajor = 0; 4164 touchMinor = 0; 4165 toolMajor = 0; 4166 toolMinor = 0; 4167 size = 0; 4168 break; 4169 } 4170 4171 // Pressure 4172 float pressure; 4173 switch (mCalibration.pressureCalibration) { 4174 case Calibration::PRESSURE_CALIBRATION_PHYSICAL: 4175 case Calibration::PRESSURE_CALIBRATION_AMPLITUDE: 4176 pressure = in.pressure * mPressureScale; 4177 break; 4178 default: 4179 pressure = in.isHovering ? 0 : 1; 4180 break; 4181 } 4182 4183 // Tilt and Orientation 4184 float tilt; 4185 float orientation; 4186 if (mHaveTilt) { 4187 float tiltXAngle = (in.tiltX - mTiltXCenter) * mTiltXScale; 4188 float tiltYAngle = (in.tiltY - mTiltYCenter) * mTiltYScale; 4189 orientation = atan2f(-sinf(tiltXAngle), sinf(tiltYAngle)); 4190 tilt = acosf(cosf(tiltXAngle) * cosf(tiltYAngle)); 4191 } else { 4192 tilt = 0; 4193 4194 switch (mCalibration.orientationCalibration) { 4195 case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED: 4196 orientation = in.orientation * mOrientationScale; 4197 break; 4198 case Calibration::ORIENTATION_CALIBRATION_VECTOR: { 4199 int32_t c1 = signExtendNybble((in.orientation & 0xf0) >> 4); 4200 int32_t c2 = signExtendNybble(in.orientation & 0x0f); 4201 if (c1 != 0 || c2 != 0) { 4202 orientation = atan2f(c1, c2) * 0.5f; 4203 float confidence = hypotf(c1, c2); 4204 float scale = 1.0f + confidence / 16.0f; 4205 touchMajor *= scale; 4206 touchMinor /= scale; 4207 toolMajor *= scale; 4208 toolMinor /= scale; 4209 } else { 4210 orientation = 0; 4211 } 4212 break; 4213 } 4214 default: 4215 orientation = 0; 4216 } 4217 } 4218 4219 // Distance 4220 float distance; 4221 switch (mCalibration.distanceCalibration) { 4222 case Calibration::DISTANCE_CALIBRATION_SCALED: 4223 distance = in.distance * mDistanceScale; 4224 break; 4225 default: 4226 distance = 0; 4227 } 4228 4229 // Coverage 4230 int32_t rawLeft, rawTop, rawRight, rawBottom; 4231 switch (mCalibration.coverageCalibration) { 4232 case Calibration::COVERAGE_CALIBRATION_BOX: 4233 rawLeft = (in.toolMinor & 0xffff0000) >> 16; 4234 rawRight = in.toolMinor & 0x0000ffff; 4235 rawBottom = in.toolMajor & 0x0000ffff; 4236 rawTop = (in.toolMajor & 0xffff0000) >> 16; 4237 break; 4238 default: 4239 rawLeft = rawTop = rawRight = rawBottom = 0; 4240 break; 4241 } 4242 4243 // X, Y, and the bounding box for coverage information 4244 // Adjust coords for surface orientation. 4245 float x, y, left, top, right, bottom; 4246 switch (mSurfaceOrientation) { 4247 case DISPLAY_ORIENTATION_90: 4248 x = float(in.y - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; 4249 y = float(mRawPointerAxes.x.maxValue - in.x) * mXScale + mXTranslate; 4250 left = float(rawTop - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; 4251 right = float(rawBottom- mRawPointerAxes.y.minValue) * mYScale + mYTranslate; 4252 bottom = float(mRawPointerAxes.x.maxValue - rawLeft) * mXScale + mXTranslate; 4253 top = float(mRawPointerAxes.x.maxValue - rawRight) * mXScale + mXTranslate; 4254 orientation -= M_PI_2; 4255 if (orientation < - M_PI_2) { 4256 orientation += M_PI; 4257 } 4258 break; 4259 case DISPLAY_ORIENTATION_180: 4260 x = float(mRawPointerAxes.x.maxValue - in.x) * mXScale + mXTranslate; 4261 y = float(mRawPointerAxes.y.maxValue - in.y) * mYScale + mYTranslate; 4262 left = float(mRawPointerAxes.x.maxValue - rawRight) * mXScale + mXTranslate; 4263 right = float(mRawPointerAxes.x.maxValue - rawLeft) * mXScale + mXTranslate; 4264 bottom = float(mRawPointerAxes.y.maxValue - rawTop) * mYScale + mYTranslate; 4265 top = float(mRawPointerAxes.y.maxValue - rawBottom) * mYScale + mYTranslate; 4266 break; 4267 case DISPLAY_ORIENTATION_270: 4268 x = float(mRawPointerAxes.y.maxValue - in.y) * mYScale + mYTranslate; 4269 y = float(in.x - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; 4270 left = float(mRawPointerAxes.y.maxValue - rawBottom) * mYScale + mYTranslate; 4271 right = float(mRawPointerAxes.y.maxValue - rawTop) * mYScale + mYTranslate; 4272 bottom = float(rawRight - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; 4273 top = float(rawLeft - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; 4274 orientation += M_PI_2; 4275 if (orientation > M_PI_2) { 4276 orientation -= M_PI; 4277 } 4278 break; 4279 default: 4280 x = float(in.x - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; 4281 y = float(in.y - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; 4282 left = float(rawLeft - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; 4283 right = float(rawRight - mRawPointerAxes.x.minValue) * mXScale + mXTranslate; 4284 bottom = float(rawBottom - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; 4285 top = float(rawTop - mRawPointerAxes.y.minValue) * mYScale + mYTranslate; 4286 break; 4287 } 4288 4289 // Write output coords. 4290 PointerCoords& out = mCurrentCookedPointerData.pointerCoords[i]; 4291 out.clear(); 4292 out.setAxisValue(AMOTION_EVENT_AXIS_X, x); 4293 out.setAxisValue(AMOTION_EVENT_AXIS_Y, y); 4294 out.setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, pressure); 4295 out.setAxisValue(AMOTION_EVENT_AXIS_SIZE, size); 4296 out.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, touchMajor); 4297 out.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, touchMinor); 4298 out.setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, orientation); 4299 out.setAxisValue(AMOTION_EVENT_AXIS_TILT, tilt); 4300 out.setAxisValue(AMOTION_EVENT_AXIS_DISTANCE, distance); 4301 if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_BOX) { 4302 out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_1, left); 4303 out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_2, top); 4304 out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_3, right); 4305 out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_4, bottom); 4306 } else { 4307 out.setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, toolMajor); 4308 out.setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, toolMinor); 4309 } 4310 4311 // Write output properties. 4312 PointerProperties& properties = mCurrentCookedPointerData.pointerProperties[i]; 4313 uint32_t id = in.id; 4314 properties.clear(); 4315 properties.id = id; 4316 properties.toolType = in.toolType; 4317 4318 // Write id index. 4319 mCurrentCookedPointerData.idToIndex[id] = i; 4320 } 4321 } 4322 4323 void TouchInputMapper::dispatchPointerUsage(nsecs_t when, uint32_t policyFlags, 4324 PointerUsage pointerUsage) { 4325 if (pointerUsage != mPointerUsage) { 4326 abortPointerUsage(when, policyFlags); 4327 mPointerUsage = pointerUsage; 4328 } 4329 4330 switch (mPointerUsage) { 4331 case POINTER_USAGE_GESTURES: 4332 dispatchPointerGestures(when, policyFlags, false /*isTimeout*/); 4333 break; 4334 case POINTER_USAGE_STYLUS: 4335 dispatchPointerStylus(when, policyFlags); 4336 break; 4337 case POINTER_USAGE_MOUSE: 4338 dispatchPointerMouse(when, policyFlags); 4339 break; 4340 default: 4341 break; 4342 } 4343 } 4344 4345 void TouchInputMapper::abortPointerUsage(nsecs_t when, uint32_t policyFlags) { 4346 switch (mPointerUsage) { 4347 case POINTER_USAGE_GESTURES: 4348 abortPointerGestures(when, policyFlags); 4349 break; 4350 case POINTER_USAGE_STYLUS: 4351 abortPointerStylus(when, policyFlags); 4352 break; 4353 case POINTER_USAGE_MOUSE: 4354 abortPointerMouse(when, policyFlags); 4355 break; 4356 default: 4357 break; 4358 } 4359 4360 mPointerUsage = POINTER_USAGE_NONE; 4361 } 4362 4363 void TouchInputMapper::dispatchPointerGestures(nsecs_t when, uint32_t policyFlags, 4364 bool isTimeout) { 4365 // Update current gesture coordinates. 4366 bool cancelPreviousGesture, finishPreviousGesture; 4367 bool sendEvents = preparePointerGestures(when, 4368 &cancelPreviousGesture, &finishPreviousGesture, isTimeout); 4369 if (!sendEvents) { 4370 return; 4371 } 4372 if (finishPreviousGesture) { 4373 cancelPreviousGesture = false; 4374 } 4375 4376 // Update the pointer presentation and spots. 4377 if (mParameters.gestureMode == Parameters::GESTURE_MODE_SPOTS) { 4378 mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_SPOT); 4379 if (finishPreviousGesture || cancelPreviousGesture) { 4380 mPointerController->clearSpots(); 4381 } 4382 mPointerController->setSpots(mPointerGesture.currentGestureCoords, 4383 mPointerGesture.currentGestureIdToIndex, 4384 mPointerGesture.currentGestureIdBits); 4385 } else { 4386 mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER); 4387 } 4388 4389 // Show or hide the pointer if needed. 4390 switch (mPointerGesture.currentGestureMode) { 4391 case PointerGesture::NEUTRAL: 4392 case PointerGesture::QUIET: 4393 if (mParameters.gestureMode == Parameters::GESTURE_MODE_SPOTS 4394 && (mPointerGesture.lastGestureMode == PointerGesture::SWIPE 4395 || mPointerGesture.lastGestureMode == PointerGesture::FREEFORM)) { 4396 // Remind the user of where the pointer is after finishing a gesture with spots. 4397 mPointerController->unfade(PointerControllerInterface::TRANSITION_GRADUAL); 4398 } 4399 break; 4400 case PointerGesture::TAP: 4401 case PointerGesture::TAP_DRAG: 4402 case PointerGesture::BUTTON_CLICK_OR_DRAG: 4403 case PointerGesture::HOVER: 4404 case PointerGesture::PRESS: 4405 // Unfade the pointer when the current gesture manipulates the 4406 // area directly under the pointer. 4407 mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE); 4408 break; 4409 case PointerGesture::SWIPE: 4410 case PointerGesture::FREEFORM: 4411 // Fade the pointer when the current gesture manipulates a different 4412 // area and there are spots to guide the user experience. 4413 if (mParameters.gestureMode == Parameters::GESTURE_MODE_SPOTS) { 4414 mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); 4415 } else { 4416 mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE); 4417 } 4418 break; 4419 } 4420 4421 // Send events! 4422 int32_t metaState = getContext()->getGlobalMetaState(); 4423 int32_t buttonState = mCurrentButtonState; 4424 4425 // Update last coordinates of pointers that have moved so that we observe the new 4426 // pointer positions at the same time as other pointers that have just gone up. 4427 bool down = mPointerGesture.currentGestureMode == PointerGesture::TAP 4428 || mPointerGesture.currentGestureMode == PointerGesture::TAP_DRAG 4429 || mPointerGesture.currentGestureMode == PointerGesture::BUTTON_CLICK_OR_DRAG 4430 || mPointerGesture.currentGestureMode == PointerGesture::PRESS 4431 || mPointerGesture.currentGestureMode == PointerGesture::SWIPE 4432 || mPointerGesture.currentGestureMode == PointerGesture::FREEFORM; 4433 bool moveNeeded = false; 4434 if (down && !cancelPreviousGesture && !finishPreviousGesture 4435 && !mPointerGesture.lastGestureIdBits.isEmpty() 4436 && !mPointerGesture.currentGestureIdBits.isEmpty()) { 4437 BitSet32 movedGestureIdBits(mPointerGesture.currentGestureIdBits.value 4438 & mPointerGesture.lastGestureIdBits.value); 4439 moveNeeded = updateMovedPointers(mPointerGesture.currentGestureProperties, 4440 mPointerGesture.currentGestureCoords, mPointerGesture.currentGestureIdToIndex, 4441 mPointerGesture.lastGestureProperties, 4442 mPointerGesture.lastGestureCoords, mPointerGesture.lastGestureIdToIndex, 4443 movedGestureIdBits); 4444 if (buttonState != mLastButtonState) { 4445 moveNeeded = true; 4446 } 4447 } 4448 4449 // Send motion events for all pointers that went up or were canceled. 4450 BitSet32 dispatchedGestureIdBits(mPointerGesture.lastGestureIdBits); 4451 if (!dispatchedGestureIdBits.isEmpty()) { 4452 if (cancelPreviousGesture) { 4453 dispatchMotion(when, policyFlags, mSource, 4454 AMOTION_EVENT_ACTION_CANCEL, 0, metaState, buttonState, 4455 AMOTION_EVENT_EDGE_FLAG_NONE, 4456 mPointerGesture.lastGestureProperties, 4457 mPointerGesture.lastGestureCoords, mPointerGesture.lastGestureIdToIndex, 4458 dispatchedGestureIdBits, -1, 4459 0, 0, mPointerGesture.downTime); 4460 4461 dispatchedGestureIdBits.clear(); 4462 } else { 4463 BitSet32 upGestureIdBits; 4464 if (finishPreviousGesture) { 4465 upGestureIdBits = dispatchedGestureIdBits; 4466 } else { 4467 upGestureIdBits.value = dispatchedGestureIdBits.value 4468 & ~mPointerGesture.currentGestureIdBits.value; 4469 } 4470 while (!upGestureIdBits.isEmpty()) { 4471 uint32_t id = upGestureIdBits.clearFirstMarkedBit(); 4472 4473 dispatchMotion(when, policyFlags, mSource, 4474 AMOTION_EVENT_ACTION_POINTER_UP, 0, 4475 metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, 4476 mPointerGesture.lastGestureProperties, 4477 mPointerGesture.lastGestureCoords, mPointerGesture.lastGestureIdToIndex, 4478 dispatchedGestureIdBits, id, 4479 0, 0, mPointerGesture.downTime); 4480 4481 dispatchedGestureIdBits.clearBit(id); 4482 } 4483 } 4484 } 4485 4486 // Send motion events for all pointers that moved. 4487 if (moveNeeded) { 4488 dispatchMotion(when, policyFlags, mSource, 4489 AMOTION_EVENT_ACTION_MOVE, 0, metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, 4490 mPointerGesture.currentGestureProperties, 4491 mPointerGesture.currentGestureCoords, mPointerGesture.currentGestureIdToIndex, 4492 dispatchedGestureIdBits, -1, 4493 0, 0, mPointerGesture.downTime); 4494 } 4495 4496 // Send motion events for all pointers that went down. 4497 if (down) { 4498 BitSet32 downGestureIdBits(mPointerGesture.currentGestureIdBits.value 4499 & ~dispatchedGestureIdBits.value); 4500 while (!downGestureIdBits.isEmpty()) { 4501 uint32_t id = downGestureIdBits.clearFirstMarkedBit(); 4502 dispatchedGestureIdBits.markBit(id); 4503 4504 if (dispatchedGestureIdBits.count() == 1) { 4505 mPointerGesture.downTime = when; 4506 } 4507 4508 dispatchMotion(when, policyFlags, mSource, 4509 AMOTION_EVENT_ACTION_POINTER_DOWN, 0, metaState, buttonState, 0, 4510 mPointerGesture.currentGestureProperties, 4511 mPointerGesture.currentGestureCoords, mPointerGesture.currentGestureIdToIndex, 4512 dispatchedGestureIdBits, id, 4513 0, 0, mPointerGesture.downTime); 4514 } 4515 } 4516 4517 // Send motion events for hover. 4518 if (mPointerGesture.currentGestureMode == PointerGesture::HOVER) { 4519 dispatchMotion(when, policyFlags, mSource, 4520 AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 4521 metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, 4522 mPointerGesture.currentGestureProperties, 4523 mPointerGesture.currentGestureCoords, mPointerGesture.currentGestureIdToIndex, 4524 mPointerGesture.currentGestureIdBits, -1, 4525 0, 0, mPointerGesture.downTime); 4526 } else if (dispatchedGestureIdBits.isEmpty() 4527 && !mPointerGesture.lastGestureIdBits.isEmpty()) { 4528 // Synthesize a hover move event after all pointers go up to indicate that 4529 // the pointer is hovering again even if the user is not currently touching 4530 // the touch pad. This ensures that a view will receive a fresh hover enter 4531 // event after a tap. 4532 float x, y; 4533 mPointerController->getPosition(&x, &y); 4534 4535 PointerProperties pointerProperties; 4536 pointerProperties.clear(); 4537 pointerProperties.id = 0; 4538 pointerProperties.toolType = AMOTION_EVENT_TOOL_TYPE_FINGER; 4539 4540 PointerCoords pointerCoords; 4541 pointerCoords.clear(); 4542 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x); 4543 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y); 4544 4545 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 4546 AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 4547 metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, 4548 mViewport.displayId, 1, &pointerProperties, &pointerCoords, 4549 0, 0, mPointerGesture.downTime); 4550 getListener()->notifyMotion(&args); 4551 } 4552 4553 // Update state. 4554 mPointerGesture.lastGestureMode = mPointerGesture.currentGestureMode; 4555 if (!down) { 4556 mPointerGesture.lastGestureIdBits.clear(); 4557 } else { 4558 mPointerGesture.lastGestureIdBits = mPointerGesture.currentGestureIdBits; 4559 for (BitSet32 idBits(mPointerGesture.currentGestureIdBits); !idBits.isEmpty(); ) { 4560 uint32_t id = idBits.clearFirstMarkedBit(); 4561 uint32_t index = mPointerGesture.currentGestureIdToIndex[id]; 4562 mPointerGesture.lastGestureProperties[index].copyFrom( 4563 mPointerGesture.currentGestureProperties[index]); 4564 mPointerGesture.lastGestureCoords[index].copyFrom( 4565 mPointerGesture.currentGestureCoords[index]); 4566 mPointerGesture.lastGestureIdToIndex[id] = index; 4567 } 4568 } 4569 } 4570 4571 void TouchInputMapper::abortPointerGestures(nsecs_t when, uint32_t policyFlags) { 4572 // Cancel previously dispatches pointers. 4573 if (!mPointerGesture.lastGestureIdBits.isEmpty()) { 4574 int32_t metaState = getContext()->getGlobalMetaState(); 4575 int32_t buttonState = mCurrentButtonState; 4576 dispatchMotion(when, policyFlags, mSource, 4577 AMOTION_EVENT_ACTION_CANCEL, 0, metaState, buttonState, 4578 AMOTION_EVENT_EDGE_FLAG_NONE, 4579 mPointerGesture.lastGestureProperties, 4580 mPointerGesture.lastGestureCoords, mPointerGesture.lastGestureIdToIndex, 4581 mPointerGesture.lastGestureIdBits, -1, 4582 0, 0, mPointerGesture.downTime); 4583 } 4584 4585 // Reset the current pointer gesture. 4586 mPointerGesture.reset(); 4587 mPointerVelocityControl.reset(); 4588 4589 // Remove any current spots. 4590 if (mPointerController != NULL) { 4591 mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); 4592 mPointerController->clearSpots(); 4593 } 4594 } 4595 4596 bool TouchInputMapper::preparePointerGestures(nsecs_t when, 4597 bool* outCancelPreviousGesture, bool* outFinishPreviousGesture, bool isTimeout) { 4598 *outCancelPreviousGesture = false; 4599 *outFinishPreviousGesture = false; 4600 4601 // Handle TAP timeout. 4602 if (isTimeout) { 4603 #if DEBUG_GESTURES 4604 ALOGD("Gestures: Processing timeout"); 4605 #endif 4606 4607 if (mPointerGesture.lastGestureMode == PointerGesture::TAP) { 4608 if (when <= mPointerGesture.tapUpTime + mConfig.pointerGestureTapDragInterval) { 4609 // The tap/drag timeout has not yet expired. 4610 getContext()->requestTimeoutAtTime(mPointerGesture.tapUpTime 4611 + mConfig.pointerGestureTapDragInterval); 4612 } else { 4613 // The tap is finished. 4614 #if DEBUG_GESTURES 4615 ALOGD("Gestures: TAP finished"); 4616 #endif 4617 *outFinishPreviousGesture = true; 4618 4619 mPointerGesture.activeGestureId = -1; 4620 mPointerGesture.currentGestureMode = PointerGesture::NEUTRAL; 4621 mPointerGesture.currentGestureIdBits.clear(); 4622 4623 mPointerVelocityControl.reset(); 4624 return true; 4625 } 4626 } 4627 4628 // We did not handle this timeout. 4629 return false; 4630 } 4631 4632 const uint32_t currentFingerCount = mCurrentFingerIdBits.count(); 4633 const uint32_t lastFingerCount = mLastFingerIdBits.count(); 4634 4635 // Update the velocity tracker. 4636 { 4637 VelocityTracker::Position positions[MAX_POINTERS]; 4638 uint32_t count = 0; 4639 for (BitSet32 idBits(mCurrentFingerIdBits); !idBits.isEmpty(); count++) { 4640 uint32_t id = idBits.clearFirstMarkedBit(); 4641 const RawPointerData::Pointer& pointer = mCurrentRawPointerData.pointerForId(id); 4642 positions[count].x = pointer.x * mPointerXMovementScale; 4643 positions[count].y = pointer.y * mPointerYMovementScale; 4644 } 4645 mPointerGesture.velocityTracker.addMovement(when, 4646 mCurrentFingerIdBits, positions); 4647 } 4648 4649 // Pick a new active touch id if needed. 4650 // Choose an arbitrary pointer that just went down, if there is one. 4651 // Otherwise choose an arbitrary remaining pointer. 4652 // This guarantees we always have an active touch id when there is at least one pointer. 4653 // We keep the same active touch id for as long as possible. 4654 bool activeTouchChanged = false; 4655 int32_t lastActiveTouchId = mPointerGesture.activeTouchId; 4656 int32_t activeTouchId = lastActiveTouchId; 4657 if (activeTouchId < 0) { 4658 if (!mCurrentFingerIdBits.isEmpty()) { 4659 activeTouchChanged = true; 4660 activeTouchId = mPointerGesture.activeTouchId = 4661 mCurrentFingerIdBits.firstMarkedBit(); 4662 mPointerGesture.firstTouchTime = when; 4663 } 4664 } else if (!mCurrentFingerIdBits.hasBit(activeTouchId)) { 4665 activeTouchChanged = true; 4666 if (!mCurrentFingerIdBits.isEmpty()) { 4667 activeTouchId = mPointerGesture.activeTouchId = 4668 mCurrentFingerIdBits.firstMarkedBit(); 4669 } else { 4670 activeTouchId = mPointerGesture.activeTouchId = -1; 4671 } 4672 } 4673 4674 // Determine whether we are in quiet time. 4675 bool isQuietTime = false; 4676 if (activeTouchId < 0) { 4677 mPointerGesture.resetQuietTime(); 4678 } else { 4679 isQuietTime = when < mPointerGesture.quietTime + mConfig.pointerGestureQuietInterval; 4680 if (!isQuietTime) { 4681 if ((mPointerGesture.lastGestureMode == PointerGesture::PRESS 4682 || mPointerGesture.lastGestureMode == PointerGesture::SWIPE 4683 || mPointerGesture.lastGestureMode == PointerGesture::FREEFORM) 4684 && currentFingerCount < 2) { 4685 // Enter quiet time when exiting swipe or freeform state. 4686 // This is to prevent accidentally entering the hover state and flinging the 4687 // pointer when finishing a swipe and there is still one pointer left onscreen. 4688 isQuietTime = true; 4689 } else if (mPointerGesture.lastGestureMode == PointerGesture::BUTTON_CLICK_OR_DRAG 4690 && currentFingerCount >= 2 4691 && !isPointerDown(mCurrentButtonState)) { 4692 // Enter quiet time when releasing the button and there are still two or more 4693 // fingers down. This may indicate that one finger was used to press the button 4694 // but it has not gone up yet. 4695 isQuietTime = true; 4696 } 4697 if (isQuietTime) { 4698 mPointerGesture.quietTime = when; 4699 } 4700 } 4701 } 4702 4703 // Switch states based on button and pointer state. 4704 if (isQuietTime) { 4705 // Case 1: Quiet time. (QUIET) 4706 #if DEBUG_GESTURES 4707 ALOGD("Gestures: QUIET for next %0.3fms", (mPointerGesture.quietTime 4708 + mConfig.pointerGestureQuietInterval - when) * 0.000001f); 4709 #endif 4710 if (mPointerGesture.lastGestureMode != PointerGesture::QUIET) { 4711 *outFinishPreviousGesture = true; 4712 } 4713 4714 mPointerGesture.activeGestureId = -1; 4715 mPointerGesture.currentGestureMode = PointerGesture::QUIET; 4716 mPointerGesture.currentGestureIdBits.clear(); 4717 4718 mPointerVelocityControl.reset(); 4719 } else if (isPointerDown(mCurrentButtonState)) { 4720 // Case 2: Button is pressed. (BUTTON_CLICK_OR_DRAG) 4721 // The pointer follows the active touch point. 4722 // Emit DOWN, MOVE, UP events at the pointer location. 4723 // 4724 // Only the active touch matters; other fingers are ignored. This policy helps 4725 // to handle the case where the user places a second finger on the touch pad 4726 // to apply the necessary force to depress an integrated button below the surface. 4727 // We don't want the second finger to be delivered to applications. 4728 // 4729 // For this to work well, we need to make sure to track the pointer that is really 4730 // active. If the user first puts one finger down to click then adds another 4731 // finger to drag then the active pointer should switch to the finger that is 4732 // being dragged. 4733 #if DEBUG_GESTURES 4734 ALOGD("Gestures: BUTTON_CLICK_OR_DRAG activeTouchId=%d, " 4735 "currentFingerCount=%d", activeTouchId, currentFingerCount); 4736 #endif 4737 // Reset state when just starting. 4738 if (mPointerGesture.lastGestureMode != PointerGesture::BUTTON_CLICK_OR_DRAG) { 4739 *outFinishPreviousGesture = true; 4740 mPointerGesture.activeGestureId = 0; 4741 } 4742 4743 // Switch pointers if needed. 4744 // Find the fastest pointer and follow it. 4745 if (activeTouchId >= 0 && currentFingerCount > 1) { 4746 int32_t bestId = -1; 4747 float bestSpeed = mConfig.pointerGestureDragMinSwitchSpeed; 4748 for (BitSet32 idBits(mCurrentFingerIdBits); !idBits.isEmpty(); ) { 4749 uint32_t id = idBits.clearFirstMarkedBit(); 4750 float vx, vy; 4751 if (mPointerGesture.velocityTracker.getVelocity(id, &vx, &vy)) { 4752 float speed = hypotf(vx, vy); 4753 if (speed > bestSpeed) { 4754 bestId = id; 4755 bestSpeed = speed; 4756 } 4757 } 4758 } 4759 if (bestId >= 0 && bestId != activeTouchId) { 4760 mPointerGesture.activeTouchId = activeTouchId = bestId; 4761 activeTouchChanged = true; 4762 #if DEBUG_GESTURES 4763 ALOGD("Gestures: BUTTON_CLICK_OR_DRAG switched pointers, " 4764 "bestId=%d, bestSpeed=%0.3f", bestId, bestSpeed); 4765 #endif 4766 } 4767 } 4768 4769 if (activeTouchId >= 0 && mLastFingerIdBits.hasBit(activeTouchId)) { 4770 const RawPointerData::Pointer& currentPointer = 4771 mCurrentRawPointerData.pointerForId(activeTouchId); 4772 const RawPointerData::Pointer& lastPointer = 4773 mLastRawPointerData.pointerForId(activeTouchId); 4774 float deltaX = (currentPointer.x - lastPointer.x) * mPointerXMovementScale; 4775 float deltaY = (currentPointer.y - lastPointer.y) * mPointerYMovementScale; 4776 4777 rotateDelta(mSurfaceOrientation, &deltaX, &deltaY); 4778 mPointerVelocityControl.move(when, &deltaX, &deltaY); 4779 4780 // Move the pointer using a relative motion. 4781 // When using spots, the click will occur at the position of the anchor 4782 // spot and all other spots will move there. 4783 mPointerController->move(deltaX, deltaY); 4784 } else { 4785 mPointerVelocityControl.reset(); 4786 } 4787 4788 float x, y; 4789 mPointerController->getPosition(&x, &y); 4790 4791 mPointerGesture.currentGestureMode = PointerGesture::BUTTON_CLICK_OR_DRAG; 4792 mPointerGesture.currentGestureIdBits.clear(); 4793 mPointerGesture.currentGestureIdBits.markBit(mPointerGesture.activeGestureId); 4794 mPointerGesture.currentGestureIdToIndex[mPointerGesture.activeGestureId] = 0; 4795 mPointerGesture.currentGestureProperties[0].clear(); 4796 mPointerGesture.currentGestureProperties[0].id = mPointerGesture.activeGestureId; 4797 mPointerGesture.currentGestureProperties[0].toolType = AMOTION_EVENT_TOOL_TYPE_FINGER; 4798 mPointerGesture.currentGestureCoords[0].clear(); 4799 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, x); 4800 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, y); 4801 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 1.0f); 4802 } else if (currentFingerCount == 0) { 4803 // Case 3. No fingers down and button is not pressed. (NEUTRAL) 4804 if (mPointerGesture.lastGestureMode != PointerGesture::NEUTRAL) { 4805 *outFinishPreviousGesture = true; 4806 } 4807 4808 // Watch for taps coming out of HOVER or TAP_DRAG mode. 4809 // Checking for taps after TAP_DRAG allows us to detect double-taps. 4810 bool tapped = false; 4811 if ((mPointerGesture.lastGestureMode == PointerGesture::HOVER 4812 || mPointerGesture.lastGestureMode == PointerGesture::TAP_DRAG) 4813 && lastFingerCount == 1) { 4814 if (when <= mPointerGesture.tapDownTime + mConfig.pointerGestureTapInterval) { 4815 float x, y; 4816 mPointerController->getPosition(&x, &y); 4817 if (fabs(x - mPointerGesture.tapX) <= mConfig.pointerGestureTapSlop 4818 && fabs(y - mPointerGesture.tapY) <= mConfig.pointerGestureTapSlop) { 4819 #if DEBUG_GESTURES 4820 ALOGD("Gestures: TAP"); 4821 #endif 4822 4823 mPointerGesture.tapUpTime = when; 4824 getContext()->requestTimeoutAtTime(when 4825 + mConfig.pointerGestureTapDragInterval); 4826 4827 mPointerGesture.activeGestureId = 0; 4828 mPointerGesture.currentGestureMode = PointerGesture::TAP; 4829 mPointerGesture.currentGestureIdBits.clear(); 4830 mPointerGesture.currentGestureIdBits.markBit( 4831 mPointerGesture.activeGestureId); 4832 mPointerGesture.currentGestureIdToIndex[ 4833 mPointerGesture.activeGestureId] = 0; 4834 mPointerGesture.currentGestureProperties[0].clear(); 4835 mPointerGesture.currentGestureProperties[0].id = 4836 mPointerGesture.activeGestureId; 4837 mPointerGesture.currentGestureProperties[0].toolType = 4838 AMOTION_EVENT_TOOL_TYPE_FINGER; 4839 mPointerGesture.currentGestureCoords[0].clear(); 4840 mPointerGesture.currentGestureCoords[0].setAxisValue( 4841 AMOTION_EVENT_AXIS_X, mPointerGesture.tapX); 4842 mPointerGesture.currentGestureCoords[0].setAxisValue( 4843 AMOTION_EVENT_AXIS_Y, mPointerGesture.tapY); 4844 mPointerGesture.currentGestureCoords[0].setAxisValue( 4845 AMOTION_EVENT_AXIS_PRESSURE, 1.0f); 4846 4847 tapped = true; 4848 } else { 4849 #if DEBUG_GESTURES 4850 ALOGD("Gestures: Not a TAP, deltaX=%f, deltaY=%f", 4851 x - mPointerGesture.tapX, 4852 y - mPointerGesture.tapY); 4853 #endif 4854 } 4855 } else { 4856 #if DEBUG_GESTURES 4857 ALOGD("Gestures: Not a TAP, %0.3fms since down", 4858 (when - mPointerGesture.tapDownTime) * 0.000001f); 4859 #endif 4860 } 4861 } 4862 4863 mPointerVelocityControl.reset(); 4864 4865 if (!tapped) { 4866 #if DEBUG_GESTURES 4867 ALOGD("Gestures: NEUTRAL"); 4868 #endif 4869 mPointerGesture.activeGestureId = -1; 4870 mPointerGesture.currentGestureMode = PointerGesture::NEUTRAL; 4871 mPointerGesture.currentGestureIdBits.clear(); 4872 } 4873 } else if (currentFingerCount == 1) { 4874 // Case 4. Exactly one finger down, button is not pressed. (HOVER or TAP_DRAG) 4875 // The pointer follows the active touch point. 4876 // When in HOVER, emit HOVER_MOVE events at the pointer location. 4877 // When in TAP_DRAG, emit MOVE events at the pointer location. 4878 ALOG_ASSERT(activeTouchId >= 0); 4879 4880 mPointerGesture.currentGestureMode = PointerGesture::HOVER; 4881 if (mPointerGesture.lastGestureMode == PointerGesture::TAP) { 4882 if (when <= mPointerGesture.tapUpTime + mConfig.pointerGestureTapDragInterval) { 4883 float x, y; 4884 mPointerController->getPosition(&x, &y); 4885 if (fabs(x - mPointerGesture.tapX) <= mConfig.pointerGestureTapSlop 4886 && fabs(y - mPointerGesture.tapY) <= mConfig.pointerGestureTapSlop) { 4887 mPointerGesture.currentGestureMode = PointerGesture::TAP_DRAG; 4888 } else { 4889 #if DEBUG_GESTURES 4890 ALOGD("Gestures: Not a TAP_DRAG, deltaX=%f, deltaY=%f", 4891 x - mPointerGesture.tapX, 4892 y - mPointerGesture.tapY); 4893 #endif 4894 } 4895 } else { 4896 #if DEBUG_GESTURES 4897 ALOGD("Gestures: Not a TAP_DRAG, %0.3fms time since up", 4898 (when - mPointerGesture.tapUpTime) * 0.000001f); 4899 #endif 4900 } 4901 } else if (mPointerGesture.lastGestureMode == PointerGesture::TAP_DRAG) { 4902 mPointerGesture.currentGestureMode = PointerGesture::TAP_DRAG; 4903 } 4904 4905 if (mLastFingerIdBits.hasBit(activeTouchId)) { 4906 const RawPointerData::Pointer& currentPointer = 4907 mCurrentRawPointerData.pointerForId(activeTouchId); 4908 const RawPointerData::Pointer& lastPointer = 4909 mLastRawPointerData.pointerForId(activeTouchId); 4910 float deltaX = (currentPointer.x - lastPointer.x) 4911 * mPointerXMovementScale; 4912 float deltaY = (currentPointer.y - lastPointer.y) 4913 * mPointerYMovementScale; 4914 4915 rotateDelta(mSurfaceOrientation, &deltaX, &deltaY); 4916 mPointerVelocityControl.move(when, &deltaX, &deltaY); 4917 4918 // Move the pointer using a relative motion. 4919 // When using spots, the hover or drag will occur at the position of the anchor spot. 4920 mPointerController->move(deltaX, deltaY); 4921 } else { 4922 mPointerVelocityControl.reset(); 4923 } 4924 4925 bool down; 4926 if (mPointerGesture.currentGestureMode == PointerGesture::TAP_DRAG) { 4927 #if DEBUG_GESTURES 4928 ALOGD("Gestures: TAP_DRAG"); 4929 #endif 4930 down = true; 4931 } else { 4932 #if DEBUG_GESTURES 4933 ALOGD("Gestures: HOVER"); 4934 #endif 4935 if (mPointerGesture.lastGestureMode != PointerGesture::HOVER) { 4936 *outFinishPreviousGesture = true; 4937 } 4938 mPointerGesture.activeGestureId = 0; 4939 down = false; 4940 } 4941 4942 float x, y; 4943 mPointerController->getPosition(&x, &y); 4944 4945 mPointerGesture.currentGestureIdBits.clear(); 4946 mPointerGesture.currentGestureIdBits.markBit(mPointerGesture.activeGestureId); 4947 mPointerGesture.currentGestureIdToIndex[mPointerGesture.activeGestureId] = 0; 4948 mPointerGesture.currentGestureProperties[0].clear(); 4949 mPointerGesture.currentGestureProperties[0].id = mPointerGesture.activeGestureId; 4950 mPointerGesture.currentGestureProperties[0].toolType = 4951 AMOTION_EVENT_TOOL_TYPE_FINGER; 4952 mPointerGesture.currentGestureCoords[0].clear(); 4953 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, x); 4954 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, y); 4955 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 4956 down ? 1.0f : 0.0f); 4957 4958 if (lastFingerCount == 0 && currentFingerCount != 0) { 4959 mPointerGesture.resetTap(); 4960 mPointerGesture.tapDownTime = when; 4961 mPointerGesture.tapX = x; 4962 mPointerGesture.tapY = y; 4963 } 4964 } else { 4965 // Case 5. At least two fingers down, button is not pressed. (PRESS, SWIPE or FREEFORM) 4966 // We need to provide feedback for each finger that goes down so we cannot wait 4967 // for the fingers to move before deciding what to do. 4968 // 4969 // The ambiguous case is deciding what to do when there are two fingers down but they 4970 // have not moved enough to determine whether they are part of a drag or part of a 4971 // freeform gesture, or just a press or long-press at the pointer location. 4972 // 4973 // When there are two fingers we start with the PRESS hypothesis and we generate a 4974 // down at the pointer location. 4975 // 4976 // When the two fingers move enough or when additional fingers are added, we make 4977 // a decision to transition into SWIPE or FREEFORM mode accordingly. 4978 ALOG_ASSERT(activeTouchId >= 0); 4979 4980 bool settled = when >= mPointerGesture.firstTouchTime 4981 + mConfig.pointerGestureMultitouchSettleInterval; 4982 if (mPointerGesture.lastGestureMode != PointerGesture::PRESS 4983 && mPointerGesture.lastGestureMode != PointerGesture::SWIPE 4984 && mPointerGesture.lastGestureMode != PointerGesture::FREEFORM) { 4985 *outFinishPreviousGesture = true; 4986 } else if (!settled && currentFingerCount > lastFingerCount) { 4987 // Additional pointers have gone down but not yet settled. 4988 // Reset the gesture. 4989 #if DEBUG_GESTURES 4990 ALOGD("Gestures: Resetting gesture since additional pointers went down for MULTITOUCH, " 4991 "settle time remaining %0.3fms", (mPointerGesture.firstTouchTime 4992 + mConfig.pointerGestureMultitouchSettleInterval - when) 4993 * 0.000001f); 4994 #endif 4995 *outCancelPreviousGesture = true; 4996 } else { 4997 // Continue previous gesture. 4998 mPointerGesture.currentGestureMode = mPointerGesture.lastGestureMode; 4999 } 5000 5001 if (*outFinishPreviousGesture || *outCancelPreviousGesture) { 5002 mPointerGesture.currentGestureMode = PointerGesture::PRESS; 5003 mPointerGesture.activeGestureId = 0; 5004 mPointerGesture.referenceIdBits.clear(); 5005 mPointerVelocityControl.reset(); 5006 5007 // Use the centroid and pointer location as the reference points for the gesture. 5008 #if DEBUG_GESTURES 5009 ALOGD("Gestures: Using centroid as reference for MULTITOUCH, " 5010 "settle time remaining %0.3fms", (mPointerGesture.firstTouchTime 5011 + mConfig.pointerGestureMultitouchSettleInterval - when) 5012 * 0.000001f); 5013 #endif 5014 mCurrentRawPointerData.getCentroidOfTouchingPointers( 5015 &mPointerGesture.referenceTouchX, 5016 &mPointerGesture.referenceTouchY); 5017 mPointerController->getPosition(&mPointerGesture.referenceGestureX, 5018 &mPointerGesture.referenceGestureY); 5019 } 5020 5021 // Clear the reference deltas for fingers not yet included in the reference calculation. 5022 for (BitSet32 idBits(mCurrentFingerIdBits.value 5023 & ~mPointerGesture.referenceIdBits.value); !idBits.isEmpty(); ) { 5024 uint32_t id = idBits.clearFirstMarkedBit(); 5025 mPointerGesture.referenceDeltas[id].dx = 0; 5026 mPointerGesture.referenceDeltas[id].dy = 0; 5027 } 5028 mPointerGesture.referenceIdBits = mCurrentFingerIdBits; 5029 5030 // Add delta for all fingers and calculate a common movement delta. 5031 float commonDeltaX = 0, commonDeltaY = 0; 5032 BitSet32 commonIdBits(mLastFingerIdBits.value 5033 & mCurrentFingerIdBits.value); 5034 for (BitSet32 idBits(commonIdBits); !idBits.isEmpty(); ) { 5035 bool first = (idBits == commonIdBits); 5036 uint32_t id = idBits.clearFirstMarkedBit(); 5037 const RawPointerData::Pointer& cpd = mCurrentRawPointerData.pointerForId(id); 5038 const RawPointerData::Pointer& lpd = mLastRawPointerData.pointerForId(id); 5039 PointerGesture::Delta& delta = mPointerGesture.referenceDeltas[id]; 5040 delta.dx += cpd.x - lpd.x; 5041 delta.dy += cpd.y - lpd.y; 5042 5043 if (first) { 5044 commonDeltaX = delta.dx; 5045 commonDeltaY = delta.dy; 5046 } else { 5047 commonDeltaX = calculateCommonVector(commonDeltaX, delta.dx); 5048 commonDeltaY = calculateCommonVector(commonDeltaY, delta.dy); 5049 } 5050 } 5051 5052 // Consider transitions from PRESS to SWIPE or MULTITOUCH. 5053 if (mPointerGesture.currentGestureMode == PointerGesture::PRESS) { 5054 float dist[MAX_POINTER_ID + 1]; 5055 int32_t distOverThreshold = 0; 5056 for (BitSet32 idBits(mPointerGesture.referenceIdBits); !idBits.isEmpty(); ) { 5057 uint32_t id = idBits.clearFirstMarkedBit(); 5058 PointerGesture::Delta& delta = mPointerGesture.referenceDeltas[id]; 5059 dist[id] = hypotf(delta.dx * mPointerXZoomScale, 5060 delta.dy * mPointerYZoomScale); 5061 if (dist[id] > mConfig.pointerGestureMultitouchMinDistance) { 5062 distOverThreshold += 1; 5063 } 5064 } 5065 5066 // Only transition when at least two pointers have moved further than 5067 // the minimum distance threshold. 5068 if (distOverThreshold >= 2) { 5069 if (currentFingerCount > 2) { 5070 // There are more than two pointers, switch to FREEFORM. 5071 #if DEBUG_GESTURES 5072 ALOGD("Gestures: PRESS transitioned to FREEFORM, number of pointers %d > 2", 5073 currentFingerCount); 5074 #endif 5075 *outCancelPreviousGesture = true; 5076 mPointerGesture.currentGestureMode = PointerGesture::FREEFORM; 5077 } else { 5078 // There are exactly two pointers. 5079 BitSet32 idBits(mCurrentFingerIdBits); 5080 uint32_t id1 = idBits.clearFirstMarkedBit(); 5081 uint32_t id2 = idBits.firstMarkedBit(); 5082 const RawPointerData::Pointer& p1 = mCurrentRawPointerData.pointerForId(id1); 5083 const RawPointerData::Pointer& p2 = mCurrentRawPointerData.pointerForId(id2); 5084 float mutualDistance = distance(p1.x, p1.y, p2.x, p2.y); 5085 if (mutualDistance > mPointerGestureMaxSwipeWidth) { 5086 // There are two pointers but they are too far apart for a SWIPE, 5087 // switch to FREEFORM. 5088 #if DEBUG_GESTURES 5089 ALOGD("Gestures: PRESS transitioned to FREEFORM, distance %0.3f > %0.3f", 5090 mutualDistance, mPointerGestureMaxSwipeWidth); 5091 #endif 5092 *outCancelPreviousGesture = true; 5093 mPointerGesture.currentGestureMode = PointerGesture::FREEFORM; 5094 } else { 5095 // There are two pointers. Wait for both pointers to start moving 5096 // before deciding whether this is a SWIPE or FREEFORM gesture. 5097 float dist1 = dist[id1]; 5098 float dist2 = dist[id2]; 5099 if (dist1 >= mConfig.pointerGestureMultitouchMinDistance 5100 && dist2 >= mConfig.pointerGestureMultitouchMinDistance) { 5101 // Calculate the dot product of the displacement vectors. 5102 // When the vectors are oriented in approximately the same direction, 5103 // the angle betweeen them is near zero and the cosine of the angle 5104 // approches 1.0. Recall that dot(v1, v2) = cos(angle) * mag(v1) * mag(v2). 5105 PointerGesture::Delta& delta1 = mPointerGesture.referenceDeltas[id1]; 5106 PointerGesture::Delta& delta2 = mPointerGesture.referenceDeltas[id2]; 5107 float dx1 = delta1.dx * mPointerXZoomScale; 5108 float dy1 = delta1.dy * mPointerYZoomScale; 5109 float dx2 = delta2.dx * mPointerXZoomScale; 5110 float dy2 = delta2.dy * mPointerYZoomScale; 5111 float dot = dx1 * dx2 + dy1 * dy2; 5112 float cosine = dot / (dist1 * dist2); // denominator always > 0 5113 if (cosine >= mConfig.pointerGestureSwipeTransitionAngleCosine) { 5114 // Pointers are moving in the same direction. Switch to SWIPE. 5115 #if DEBUG_GESTURES 5116 ALOGD("Gestures: PRESS transitioned to SWIPE, " 5117 "dist1 %0.3f >= %0.3f, dist2 %0.3f >= %0.3f, " 5118 "cosine %0.3f >= %0.3f", 5119 dist1, mConfig.pointerGestureMultitouchMinDistance, 5120 dist2, mConfig.pointerGestureMultitouchMinDistance, 5121 cosine, mConfig.pointerGestureSwipeTransitionAngleCosine); 5122 #endif 5123 mPointerGesture.currentGestureMode = PointerGesture::SWIPE; 5124 } else { 5125 // Pointers are moving in different directions. Switch to FREEFORM. 5126 #if DEBUG_GESTURES 5127 ALOGD("Gestures: PRESS transitioned to FREEFORM, " 5128 "dist1 %0.3f >= %0.3f, dist2 %0.3f >= %0.3f, " 5129 "cosine %0.3f < %0.3f", 5130 dist1, mConfig.pointerGestureMultitouchMinDistance, 5131 dist2, mConfig.pointerGestureMultitouchMinDistance, 5132 cosine, mConfig.pointerGestureSwipeTransitionAngleCosine); 5133 #endif 5134 *outCancelPreviousGesture = true; 5135 mPointerGesture.currentGestureMode = PointerGesture::FREEFORM; 5136 } 5137 } 5138 } 5139 } 5140 } 5141 } else if (mPointerGesture.currentGestureMode == PointerGesture::SWIPE) { 5142 // Switch from SWIPE to FREEFORM if additional pointers go down. 5143 // Cancel previous gesture. 5144 if (currentFingerCount > 2) { 5145 #if DEBUG_GESTURES 5146 ALOGD("Gestures: SWIPE transitioned to FREEFORM, number of pointers %d > 2", 5147 currentFingerCount); 5148 #endif 5149 *outCancelPreviousGesture = true; 5150 mPointerGesture.currentGestureMode = PointerGesture::FREEFORM; 5151 } 5152 } 5153 5154 // Move the reference points based on the overall group motion of the fingers 5155 // except in PRESS mode while waiting for a transition to occur. 5156 if (mPointerGesture.currentGestureMode != PointerGesture::PRESS 5157 && (commonDeltaX || commonDeltaY)) { 5158 for (BitSet32 idBits(mPointerGesture.referenceIdBits); !idBits.isEmpty(); ) { 5159 uint32_t id = idBits.clearFirstMarkedBit(); 5160 PointerGesture::Delta& delta = mPointerGesture.referenceDeltas[id]; 5161 delta.dx = 0; 5162 delta.dy = 0; 5163 } 5164 5165 mPointerGesture.referenceTouchX += commonDeltaX; 5166 mPointerGesture.referenceTouchY += commonDeltaY; 5167 5168 commonDeltaX *= mPointerXMovementScale; 5169 commonDeltaY *= mPointerYMovementScale; 5170 5171 rotateDelta(mSurfaceOrientation, &commonDeltaX, &commonDeltaY); 5172 mPointerVelocityControl.move(when, &commonDeltaX, &commonDeltaY); 5173 5174 mPointerGesture.referenceGestureX += commonDeltaX; 5175 mPointerGesture.referenceGestureY += commonDeltaY; 5176 } 5177 5178 // Report gestures. 5179 if (mPointerGesture.currentGestureMode == PointerGesture::PRESS 5180 || mPointerGesture.currentGestureMode == PointerGesture::SWIPE) { 5181 // PRESS or SWIPE mode. 5182 #if DEBUG_GESTURES 5183 ALOGD("Gestures: PRESS or SWIPE activeTouchId=%d," 5184 "activeGestureId=%d, currentTouchPointerCount=%d", 5185 activeTouchId, mPointerGesture.activeGestureId, currentFingerCount); 5186 #endif 5187 ALOG_ASSERT(mPointerGesture.activeGestureId >= 0); 5188 5189 mPointerGesture.currentGestureIdBits.clear(); 5190 mPointerGesture.currentGestureIdBits.markBit(mPointerGesture.activeGestureId); 5191 mPointerGesture.currentGestureIdToIndex[mPointerGesture.activeGestureId] = 0; 5192 mPointerGesture.currentGestureProperties[0].clear(); 5193 mPointerGesture.currentGestureProperties[0].id = mPointerGesture.activeGestureId; 5194 mPointerGesture.currentGestureProperties[0].toolType = 5195 AMOTION_EVENT_TOOL_TYPE_FINGER; 5196 mPointerGesture.currentGestureCoords[0].clear(); 5197 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 5198 mPointerGesture.referenceGestureX); 5199 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 5200 mPointerGesture.referenceGestureY); 5201 mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 1.0f); 5202 } else if (mPointerGesture.currentGestureMode == PointerGesture::FREEFORM) { 5203 // FREEFORM mode. 5204 #if DEBUG_GESTURES 5205 ALOGD("Gestures: FREEFORM activeTouchId=%d," 5206 "activeGestureId=%d, currentTouchPointerCount=%d", 5207 activeTouchId, mPointerGesture.activeGestureId, currentFingerCount); 5208 #endif 5209 ALOG_ASSERT(mPointerGesture.activeGestureId >= 0); 5210 5211 mPointerGesture.currentGestureIdBits.clear(); 5212 5213 BitSet32 mappedTouchIdBits; 5214 BitSet32 usedGestureIdBits; 5215 if (mPointerGesture.lastGestureMode != PointerGesture::FREEFORM) { 5216 // Initially, assign the active gesture id to the active touch point 5217 // if there is one. No other touch id bits are mapped yet. 5218 if (!*outCancelPreviousGesture) { 5219 mappedTouchIdBits.markBit(activeTouchId); 5220 usedGestureIdBits.markBit(mPointerGesture.activeGestureId); 5221 mPointerGesture.freeformTouchToGestureIdMap[activeTouchId] = 5222 mPointerGesture.activeGestureId; 5223 } else { 5224 mPointerGesture.activeGestureId = -1; 5225 } 5226 } else { 5227 // Otherwise, assume we mapped all touches from the previous frame. 5228 // Reuse all mappings that are still applicable. 5229 mappedTouchIdBits.value = mLastFingerIdBits.value 5230 & mCurrentFingerIdBits.value; 5231 usedGestureIdBits = mPointerGesture.lastGestureIdBits; 5232 5233 // Check whether we need to choose a new active gesture id because the 5234 // current went went up. 5235 for (BitSet32 upTouchIdBits(mLastFingerIdBits.value 5236 & ~mCurrentFingerIdBits.value); 5237 !upTouchIdBits.isEmpty(); ) { 5238 uint32_t upTouchId = upTouchIdBits.clearFirstMarkedBit(); 5239 uint32_t upGestureId = mPointerGesture.freeformTouchToGestureIdMap[upTouchId]; 5240 if (upGestureId == uint32_t(mPointerGesture.activeGestureId)) { 5241 mPointerGesture.activeGestureId = -1; 5242 break; 5243 } 5244 } 5245 } 5246 5247 #if DEBUG_GESTURES 5248 ALOGD("Gestures: FREEFORM follow up " 5249 "mappedTouchIdBits=0x%08x, usedGestureIdBits=0x%08x, " 5250 "activeGestureId=%d", 5251 mappedTouchIdBits.value, usedGestureIdBits.value, 5252 mPointerGesture.activeGestureId); 5253 #endif 5254 5255 BitSet32 idBits(mCurrentFingerIdBits); 5256 for (uint32_t i = 0; i < currentFingerCount; i++) { 5257 uint32_t touchId = idBits.clearFirstMarkedBit(); 5258 uint32_t gestureId; 5259 if (!mappedTouchIdBits.hasBit(touchId)) { 5260 gestureId = usedGestureIdBits.markFirstUnmarkedBit(); 5261 mPointerGesture.freeformTouchToGestureIdMap[touchId] = gestureId; 5262 #if DEBUG_GESTURES 5263 ALOGD("Gestures: FREEFORM " 5264 "new mapping for touch id %d -> gesture id %d", 5265 touchId, gestureId); 5266 #endif 5267 } else { 5268 gestureId = mPointerGesture.freeformTouchToGestureIdMap[touchId]; 5269 #if DEBUG_GESTURES 5270 ALOGD("Gestures: FREEFORM " 5271 "existing mapping for touch id %d -> gesture id %d", 5272 touchId, gestureId); 5273 #endif 5274 } 5275 mPointerGesture.currentGestureIdBits.markBit(gestureId); 5276 mPointerGesture.currentGestureIdToIndex[gestureId] = i; 5277 5278 const RawPointerData::Pointer& pointer = 5279 mCurrentRawPointerData.pointerForId(touchId); 5280 float deltaX = (pointer.x - mPointerGesture.referenceTouchX) 5281 * mPointerXZoomScale; 5282 float deltaY = (pointer.y - mPointerGesture.referenceTouchY) 5283 * mPointerYZoomScale; 5284 rotateDelta(mSurfaceOrientation, &deltaX, &deltaY); 5285 5286 mPointerGesture.currentGestureProperties[i].clear(); 5287 mPointerGesture.currentGestureProperties[i].id = gestureId; 5288 mPointerGesture.currentGestureProperties[i].toolType = 5289 AMOTION_EVENT_TOOL_TYPE_FINGER; 5290 mPointerGesture.currentGestureCoords[i].clear(); 5291 mPointerGesture.currentGestureCoords[i].setAxisValue( 5292 AMOTION_EVENT_AXIS_X, mPointerGesture.referenceGestureX + deltaX); 5293 mPointerGesture.currentGestureCoords[i].setAxisValue( 5294 AMOTION_EVENT_AXIS_Y, mPointerGesture.referenceGestureY + deltaY); 5295 mPointerGesture.currentGestureCoords[i].setAxisValue( 5296 AMOTION_EVENT_AXIS_PRESSURE, 1.0f); 5297 } 5298 5299 if (mPointerGesture.activeGestureId < 0) { 5300 mPointerGesture.activeGestureId = 5301 mPointerGesture.currentGestureIdBits.firstMarkedBit(); 5302 #if DEBUG_GESTURES 5303 ALOGD("Gestures: FREEFORM new " 5304 "activeGestureId=%d", mPointerGesture.activeGestureId); 5305 #endif 5306 } 5307 } 5308 } 5309 5310 mPointerController->setButtonState(mCurrentButtonState); 5311 5312 #if DEBUG_GESTURES 5313 ALOGD("Gestures: finishPreviousGesture=%s, cancelPreviousGesture=%s, " 5314 "currentGestureMode=%d, currentGestureIdBits=0x%08x, " 5315 "lastGestureMode=%d, lastGestureIdBits=0x%08x", 5316 toString(*outFinishPreviousGesture), toString(*outCancelPreviousGesture), 5317 mPointerGesture.currentGestureMode, mPointerGesture.currentGestureIdBits.value, 5318 mPointerGesture.lastGestureMode, mPointerGesture.lastGestureIdBits.value); 5319 for (BitSet32 idBits = mPointerGesture.currentGestureIdBits; !idBits.isEmpty(); ) { 5320 uint32_t id = idBits.clearFirstMarkedBit(); 5321 uint32_t index = mPointerGesture.currentGestureIdToIndex[id]; 5322 const PointerProperties& properties = mPointerGesture.currentGestureProperties[index]; 5323 const PointerCoords& coords = mPointerGesture.currentGestureCoords[index]; 5324 ALOGD(" currentGesture[%d]: index=%d, toolType=%d, " 5325 "x=%0.3f, y=%0.3f, pressure=%0.3f", 5326 id, index, properties.toolType, 5327 coords.getAxisValue(AMOTION_EVENT_AXIS_X), 5328 coords.getAxisValue(AMOTION_EVENT_AXIS_Y), 5329 coords.getAxisValue(AMOTION_EVENT_AXIS_PRESSURE)); 5330 } 5331 for (BitSet32 idBits = mPointerGesture.lastGestureIdBits; !idBits.isEmpty(); ) { 5332 uint32_t id = idBits.clearFirstMarkedBit(); 5333 uint32_t index = mPointerGesture.lastGestureIdToIndex[id]; 5334 const PointerProperties& properties = mPointerGesture.lastGestureProperties[index]; 5335 const PointerCoords& coords = mPointerGesture.lastGestureCoords[index]; 5336 ALOGD(" lastGesture[%d]: index=%d, toolType=%d, " 5337 "x=%0.3f, y=%0.3f, pressure=%0.3f", 5338 id, index, properties.toolType, 5339 coords.getAxisValue(AMOTION_EVENT_AXIS_X), 5340 coords.getAxisValue(AMOTION_EVENT_AXIS_Y), 5341 coords.getAxisValue(AMOTION_EVENT_AXIS_PRESSURE)); 5342 } 5343 #endif 5344 return true; 5345 } 5346 5347 void TouchInputMapper::dispatchPointerStylus(nsecs_t when, uint32_t policyFlags) { 5348 mPointerSimple.currentCoords.clear(); 5349 mPointerSimple.currentProperties.clear(); 5350 5351 bool down, hovering; 5352 if (!mCurrentStylusIdBits.isEmpty()) { 5353 uint32_t id = mCurrentStylusIdBits.firstMarkedBit(); 5354 uint32_t index = mCurrentCookedPointerData.idToIndex[id]; 5355 float x = mCurrentCookedPointerData.pointerCoords[index].getX(); 5356 float y = mCurrentCookedPointerData.pointerCoords[index].getY(); 5357 mPointerController->setPosition(x, y); 5358 5359 hovering = mCurrentCookedPointerData.hoveringIdBits.hasBit(id); 5360 down = !hovering; 5361 5362 mPointerController->getPosition(&x, &y); 5363 mPointerSimple.currentCoords.copyFrom(mCurrentCookedPointerData.pointerCoords[index]); 5364 mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x); 5365 mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y); 5366 mPointerSimple.currentProperties.id = 0; 5367 mPointerSimple.currentProperties.toolType = 5368 mCurrentCookedPointerData.pointerProperties[index].toolType; 5369 } else { 5370 down = false; 5371 hovering = false; 5372 } 5373 5374 dispatchPointerSimple(when, policyFlags, down, hovering); 5375 } 5376 5377 void TouchInputMapper::abortPointerStylus(nsecs_t when, uint32_t policyFlags) { 5378 abortPointerSimple(when, policyFlags); 5379 } 5380 5381 void TouchInputMapper::dispatchPointerMouse(nsecs_t when, uint32_t policyFlags) { 5382 mPointerSimple.currentCoords.clear(); 5383 mPointerSimple.currentProperties.clear(); 5384 5385 bool down, hovering; 5386 if (!mCurrentMouseIdBits.isEmpty()) { 5387 uint32_t id = mCurrentMouseIdBits.firstMarkedBit(); 5388 uint32_t currentIndex = mCurrentRawPointerData.idToIndex[id]; 5389 if (mLastMouseIdBits.hasBit(id)) { 5390 uint32_t lastIndex = mCurrentRawPointerData.idToIndex[id]; 5391 float deltaX = (mCurrentRawPointerData.pointers[currentIndex].x 5392 - mLastRawPointerData.pointers[lastIndex].x) 5393 * mPointerXMovementScale; 5394 float deltaY = (mCurrentRawPointerData.pointers[currentIndex].y 5395 - mLastRawPointerData.pointers[lastIndex].y) 5396 * mPointerYMovementScale; 5397 5398 rotateDelta(mSurfaceOrientation, &deltaX, &deltaY); 5399 mPointerVelocityControl.move(when, &deltaX, &deltaY); 5400 5401 mPointerController->move(deltaX, deltaY); 5402 } else { 5403 mPointerVelocityControl.reset(); 5404 } 5405 5406 down = isPointerDown(mCurrentButtonState); 5407 hovering = !down; 5408 5409 float x, y; 5410 mPointerController->getPosition(&x, &y); 5411 mPointerSimple.currentCoords.copyFrom( 5412 mCurrentCookedPointerData.pointerCoords[currentIndex]); 5413 mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x); 5414 mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y); 5415 mPointerSimple.currentCoords.setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 5416 hovering ? 0.0f : 1.0f); 5417 mPointerSimple.currentProperties.id = 0; 5418 mPointerSimple.currentProperties.toolType = 5419 mCurrentCookedPointerData.pointerProperties[currentIndex].toolType; 5420 } else { 5421 mPointerVelocityControl.reset(); 5422 5423 down = false; 5424 hovering = false; 5425 } 5426 5427 dispatchPointerSimple(when, policyFlags, down, hovering); 5428 } 5429 5430 void TouchInputMapper::abortPointerMouse(nsecs_t when, uint32_t policyFlags) { 5431 abortPointerSimple(when, policyFlags); 5432 5433 mPointerVelocityControl.reset(); 5434 } 5435 5436 void TouchInputMapper::dispatchPointerSimple(nsecs_t when, uint32_t policyFlags, 5437 bool down, bool hovering) { 5438 int32_t metaState = getContext()->getGlobalMetaState(); 5439 5440 if (mPointerController != NULL) { 5441 if (down || hovering) { 5442 mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER); 5443 mPointerController->clearSpots(); 5444 mPointerController->setButtonState(mCurrentButtonState); 5445 mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE); 5446 } else if (!down && !hovering && (mPointerSimple.down || mPointerSimple.hovering)) { 5447 mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); 5448 } 5449 } 5450 5451 if (mPointerSimple.down && !down) { 5452 mPointerSimple.down = false; 5453 5454 // Send up. 5455 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 5456 AMOTION_EVENT_ACTION_UP, 0, metaState, mLastButtonState, 0, 5457 mViewport.displayId, 5458 1, &mPointerSimple.lastProperties, &mPointerSimple.lastCoords, 5459 mOrientedXPrecision, mOrientedYPrecision, 5460 mPointerSimple.downTime); 5461 getListener()->notifyMotion(&args); 5462 } 5463 5464 if (mPointerSimple.hovering && !hovering) { 5465 mPointerSimple.hovering = false; 5466 5467 // Send hover exit. 5468 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 5469 AMOTION_EVENT_ACTION_HOVER_EXIT, 0, metaState, mLastButtonState, 0, 5470 mViewport.displayId, 5471 1, &mPointerSimple.lastProperties, &mPointerSimple.lastCoords, 5472 mOrientedXPrecision, mOrientedYPrecision, 5473 mPointerSimple.downTime); 5474 getListener()->notifyMotion(&args); 5475 } 5476 5477 if (down) { 5478 if (!mPointerSimple.down) { 5479 mPointerSimple.down = true; 5480 mPointerSimple.downTime = when; 5481 5482 // Send down. 5483 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 5484 AMOTION_EVENT_ACTION_DOWN, 0, metaState, mCurrentButtonState, 0, 5485 mViewport.displayId, 5486 1, &mPointerSimple.currentProperties, &mPointerSimple.currentCoords, 5487 mOrientedXPrecision, mOrientedYPrecision, 5488 mPointerSimple.downTime); 5489 getListener()->notifyMotion(&args); 5490 } 5491 5492 // Send move. 5493 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 5494 AMOTION_EVENT_ACTION_MOVE, 0, metaState, mCurrentButtonState, 0, 5495 mViewport.displayId, 5496 1, &mPointerSimple.currentProperties, &mPointerSimple.currentCoords, 5497 mOrientedXPrecision, mOrientedYPrecision, 5498 mPointerSimple.downTime); 5499 getListener()->notifyMotion(&args); 5500 } 5501 5502 if (hovering) { 5503 if (!mPointerSimple.hovering) { 5504 mPointerSimple.hovering = true; 5505 5506 // Send hover enter. 5507 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 5508 AMOTION_EVENT_ACTION_HOVER_ENTER, 0, metaState, mCurrentButtonState, 0, 5509 mViewport.displayId, 5510 1, &mPointerSimple.currentProperties, &mPointerSimple.currentCoords, 5511 mOrientedXPrecision, mOrientedYPrecision, 5512 mPointerSimple.downTime); 5513 getListener()->notifyMotion(&args); 5514 } 5515 5516 // Send hover move. 5517 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 5518 AMOTION_EVENT_ACTION_HOVER_MOVE, 0, metaState, mCurrentButtonState, 0, 5519 mViewport.displayId, 5520 1, &mPointerSimple.currentProperties, &mPointerSimple.currentCoords, 5521 mOrientedXPrecision, mOrientedYPrecision, 5522 mPointerSimple.downTime); 5523 getListener()->notifyMotion(&args); 5524 } 5525 5526 if (mCurrentRawVScroll || mCurrentRawHScroll) { 5527 float vscroll = mCurrentRawVScroll; 5528 float hscroll = mCurrentRawHScroll; 5529 mWheelYVelocityControl.move(when, NULL, &vscroll); 5530 mWheelXVelocityControl.move(when, &hscroll, NULL); 5531 5532 // Send scroll. 5533 PointerCoords pointerCoords; 5534 pointerCoords.copyFrom(mPointerSimple.currentCoords); 5535 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_VSCROLL, vscroll); 5536 pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_HSCROLL, hscroll); 5537 5538 NotifyMotionArgs args(when, getDeviceId(), mSource, policyFlags, 5539 AMOTION_EVENT_ACTION_SCROLL, 0, metaState, mCurrentButtonState, 0, 5540 mViewport.displayId, 5541 1, &mPointerSimple.currentProperties, &pointerCoords, 5542 mOrientedXPrecision, mOrientedYPrecision, 5543 mPointerSimple.downTime); 5544 getListener()->notifyMotion(&args); 5545 } 5546 5547 // Save state. 5548 if (down || hovering) { 5549 mPointerSimple.lastCoords.copyFrom(mPointerSimple.currentCoords); 5550 mPointerSimple.lastProperties.copyFrom(mPointerSimple.currentProperties); 5551 } else { 5552 mPointerSimple.reset(); 5553 } 5554 } 5555 5556 void TouchInputMapper::abortPointerSimple(nsecs_t when, uint32_t policyFlags) { 5557 mPointerSimple.currentCoords.clear(); 5558 mPointerSimple.currentProperties.clear(); 5559 5560 dispatchPointerSimple(when, policyFlags, false, false); 5561 } 5562 5563 void TouchInputMapper::dispatchMotion(nsecs_t when, uint32_t policyFlags, uint32_t source, 5564 int32_t action, int32_t flags, int32_t metaState, int32_t buttonState, int32_t edgeFlags, 5565 const PointerProperties* properties, const PointerCoords* coords, 5566 const uint32_t* idToIndex, BitSet32 idBits, 5567 int32_t changedId, float xPrecision, float yPrecision, nsecs_t downTime) { 5568 PointerCoords pointerCoords[MAX_POINTERS]; 5569 PointerProperties pointerProperties[MAX_POINTERS]; 5570 uint32_t pointerCount = 0; 5571 while (!idBits.isEmpty()) { 5572 uint32_t id = idBits.clearFirstMarkedBit(); 5573 uint32_t index = idToIndex[id]; 5574 pointerProperties[pointerCount].copyFrom(properties[index]); 5575 pointerCoords[pointerCount].copyFrom(coords[index]); 5576 5577 if (changedId >= 0 && id == uint32_t(changedId)) { 5578 action |= pointerCount << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT; 5579 } 5580 5581 pointerCount += 1; 5582 } 5583 5584 ALOG_ASSERT(pointerCount != 0); 5585 5586 if (changedId >= 0 && pointerCount == 1) { 5587 // Replace initial down and final up action. 5588 // We can compare the action without masking off the changed pointer index 5589 // because we know the index is 0. 5590 if (action == AMOTION_EVENT_ACTION_POINTER_DOWN) { 5591 action = AMOTION_EVENT_ACTION_DOWN; 5592 } else if (action == AMOTION_EVENT_ACTION_POINTER_UP) { 5593 action = AMOTION_EVENT_ACTION_UP; 5594 } else { 5595 // Can't happen. 5596 ALOG_ASSERT(false); 5597 } 5598 } 5599 5600 NotifyMotionArgs args(when, getDeviceId(), source, policyFlags, 5601 action, flags, metaState, buttonState, edgeFlags, 5602 mViewport.displayId, pointerCount, pointerProperties, pointerCoords, 5603 xPrecision, yPrecision, downTime); 5604 getListener()->notifyMotion(&args); 5605 } 5606 5607 bool TouchInputMapper::updateMovedPointers(const PointerProperties* inProperties, 5608 const PointerCoords* inCoords, const uint32_t* inIdToIndex, 5609 PointerProperties* outProperties, PointerCoords* outCoords, const uint32_t* outIdToIndex, 5610 BitSet32 idBits) const { 5611 bool changed = false; 5612 while (!idBits.isEmpty()) { 5613 uint32_t id = idBits.clearFirstMarkedBit(); 5614 uint32_t inIndex = inIdToIndex[id]; 5615 uint32_t outIndex = outIdToIndex[id]; 5616 5617 const PointerProperties& curInProperties = inProperties[inIndex]; 5618 const PointerCoords& curInCoords = inCoords[inIndex]; 5619 PointerProperties& curOutProperties = outProperties[outIndex]; 5620 PointerCoords& curOutCoords = outCoords[outIndex]; 5621 5622 if (curInProperties != curOutProperties) { 5623 curOutProperties.copyFrom(curInProperties); 5624 changed = true; 5625 } 5626 5627 if (curInCoords != curOutCoords) { 5628 curOutCoords.copyFrom(curInCoords); 5629 changed = true; 5630 } 5631 } 5632 return changed; 5633 } 5634 5635 void TouchInputMapper::fadePointer() { 5636 if (mPointerController != NULL) { 5637 mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL); 5638 } 5639 } 5640 5641 bool TouchInputMapper::isPointInsideSurface(int32_t x, int32_t y) { 5642 return x >= mRawPointerAxes.x.minValue && x <= mRawPointerAxes.x.maxValue 5643 && y >= mRawPointerAxes.y.minValue && y <= mRawPointerAxes.y.maxValue; 5644 } 5645 5646 const TouchInputMapper::VirtualKey* TouchInputMapper::findVirtualKeyHit( 5647 int32_t x, int32_t y) { 5648 size_t numVirtualKeys = mVirtualKeys.size(); 5649 for (size_t i = 0; i < numVirtualKeys; i++) { 5650 const VirtualKey& virtualKey = mVirtualKeys[i]; 5651 5652 #if DEBUG_VIRTUAL_KEYS 5653 ALOGD("VirtualKeys: Hit test (%d, %d): keyCode=%d, scanCode=%d, " 5654 "left=%d, top=%d, right=%d, bottom=%d", 5655 x, y, 5656 virtualKey.keyCode, virtualKey.scanCode, 5657 virtualKey.hitLeft, virtualKey.hitTop, 5658 virtualKey.hitRight, virtualKey.hitBottom); 5659 #endif 5660 5661 if (virtualKey.isHit(x, y)) { 5662 return & virtualKey; 5663 } 5664 } 5665 5666 return NULL; 5667 } 5668 5669 void TouchInputMapper::assignPointerIds() { 5670 uint32_t currentPointerCount = mCurrentRawPointerData.pointerCount; 5671 uint32_t lastPointerCount = mLastRawPointerData.pointerCount; 5672 5673 mCurrentRawPointerData.clearIdBits(); 5674 5675 if (currentPointerCount == 0) { 5676 // No pointers to assign. 5677 return; 5678 } 5679 5680 if (lastPointerCount == 0) { 5681 // All pointers are new. 5682 for (uint32_t i = 0; i < currentPointerCount; i++) { 5683 uint32_t id = i; 5684 mCurrentRawPointerData.pointers[i].id = id; 5685 mCurrentRawPointerData.idToIndex[id] = i; 5686 mCurrentRawPointerData.markIdBit(id, mCurrentRawPointerData.isHovering(i)); 5687 } 5688 return; 5689 } 5690 5691 if (currentPointerCount == 1 && lastPointerCount == 1 5692 && mCurrentRawPointerData.pointers[0].toolType 5693 == mLastRawPointerData.pointers[0].toolType) { 5694 // Only one pointer and no change in count so it must have the same id as before. 5695 uint32_t id = mLastRawPointerData.pointers[0].id; 5696 mCurrentRawPointerData.pointers[0].id = id; 5697 mCurrentRawPointerData.idToIndex[id] = 0; 5698 mCurrentRawPointerData.markIdBit(id, mCurrentRawPointerData.isHovering(0)); 5699 return; 5700 } 5701 5702 // General case. 5703 // We build a heap of squared euclidean distances between current and last pointers 5704 // associated with the current and last pointer indices. Then, we find the best 5705 // match (by distance) for each current pointer. 5706 // The pointers must have the same tool type but it is possible for them to 5707 // transition from hovering to touching or vice-versa while retaining the same id. 5708 PointerDistanceHeapElement heap[MAX_POINTERS * MAX_POINTERS]; 5709 5710 uint32_t heapSize = 0; 5711 for (uint32_t currentPointerIndex = 0; currentPointerIndex < currentPointerCount; 5712 currentPointerIndex++) { 5713 for (uint32_t lastPointerIndex = 0; lastPointerIndex < lastPointerCount; 5714 lastPointerIndex++) { 5715 const RawPointerData::Pointer& currentPointer = 5716 mCurrentRawPointerData.pointers[currentPointerIndex]; 5717 const RawPointerData::Pointer& lastPointer = 5718 mLastRawPointerData.pointers[lastPointerIndex]; 5719 if (currentPointer.toolType == lastPointer.toolType) { 5720 int64_t deltaX = currentPointer.x - lastPointer.x; 5721 int64_t deltaY = currentPointer.y - lastPointer.y; 5722 5723 uint64_t distance = uint64_t(deltaX * deltaX + deltaY * deltaY); 5724 5725 // Insert new element into the heap (sift up). 5726 heap[heapSize].currentPointerIndex = currentPointerIndex; 5727 heap[heapSize].lastPointerIndex = lastPointerIndex; 5728 heap[heapSize].distance = distance; 5729 heapSize += 1; 5730 } 5731 } 5732 } 5733 5734 // Heapify 5735 for (uint32_t startIndex = heapSize / 2; startIndex != 0; ) { 5736 startIndex -= 1; 5737 for (uint32_t parentIndex = startIndex; ;) { 5738 uint32_t childIndex = parentIndex * 2 + 1; 5739 if (childIndex >= heapSize) { 5740 break; 5741 } 5742 5743 if (childIndex + 1 < heapSize 5744 && heap[childIndex + 1].distance < heap[childIndex].distance) { 5745 childIndex += 1; 5746 } 5747 5748 if (heap[parentIndex].distance <= heap[childIndex].distance) { 5749 break; 5750 } 5751 5752 swap(heap[parentIndex], heap[childIndex]); 5753 parentIndex = childIndex; 5754 } 5755 } 5756 5757 #if DEBUG_POINTER_ASSIGNMENT 5758 ALOGD("assignPointerIds - initial distance min-heap: size=%d", heapSize); 5759 for (size_t i = 0; i < heapSize; i++) { 5760 ALOGD(" heap[%d]: cur=%d, last=%d, distance=%lld", 5761 i, heap[i].currentPointerIndex, heap[i].lastPointerIndex, 5762 heap[i].distance); 5763 } 5764 #endif 5765 5766 // Pull matches out by increasing order of distance. 5767 // To avoid reassigning pointers that have already been matched, the loop keeps track 5768 // of which last and current pointers have been matched using the matchedXXXBits variables. 5769 // It also tracks the used pointer id bits. 5770 BitSet32 matchedLastBits(0); 5771 BitSet32 matchedCurrentBits(0); 5772 BitSet32 usedIdBits(0); 5773 bool first = true; 5774 for (uint32_t i = min(currentPointerCount, lastPointerCount); heapSize > 0 && i > 0; i--) { 5775 while (heapSize > 0) { 5776 if (first) { 5777 // The first time through the loop, we just consume the root element of 5778 // the heap (the one with smallest distance). 5779 first = false; 5780 } else { 5781 // Previous iterations consumed the root element of the heap. 5782 // Pop root element off of the heap (sift down). 5783 heap[0] = heap[heapSize]; 5784 for (uint32_t parentIndex = 0; ;) { 5785 uint32_t childIndex = parentIndex * 2 + 1; 5786 if (childIndex >= heapSize) { 5787 break; 5788 } 5789 5790 if (childIndex + 1 < heapSize 5791 && heap[childIndex + 1].distance < heap[childIndex].distance) { 5792 childIndex += 1; 5793 } 5794 5795 if (heap[parentIndex].distance <= heap[childIndex].distance) { 5796 break; 5797 } 5798 5799 swap(heap[parentIndex], heap[childIndex]); 5800 parentIndex = childIndex; 5801 } 5802 5803 #if DEBUG_POINTER_ASSIGNMENT 5804 ALOGD("assignPointerIds - reduced distance min-heap: size=%d", heapSize); 5805 for (size_t i = 0; i < heapSize; i++) { 5806 ALOGD(" heap[%d]: cur=%d, last=%d, distance=%lld", 5807 i, heap[i].currentPointerIndex, heap[i].lastPointerIndex, 5808 heap[i].distance); 5809 } 5810 #endif 5811 } 5812 5813 heapSize -= 1; 5814 5815 uint32_t currentPointerIndex = heap[0].currentPointerIndex; 5816 if (matchedCurrentBits.hasBit(currentPointerIndex)) continue; // already matched 5817 5818 uint32_t lastPointerIndex = heap[0].lastPointerIndex; 5819 if (matchedLastBits.hasBit(lastPointerIndex)) continue; // already matched 5820 5821 matchedCurrentBits.markBit(currentPointerIndex); 5822 matchedLastBits.markBit(lastPointerIndex); 5823 5824 uint32_t id = mLastRawPointerData.pointers[lastPointerIndex].id; 5825 mCurrentRawPointerData.pointers[currentPointerIndex].id = id; 5826 mCurrentRawPointerData.idToIndex[id] = currentPointerIndex; 5827 mCurrentRawPointerData.markIdBit(id, 5828 mCurrentRawPointerData.isHovering(currentPointerIndex)); 5829 usedIdBits.markBit(id); 5830 5831 #if DEBUG_POINTER_ASSIGNMENT 5832 ALOGD("assignPointerIds - matched: cur=%d, last=%d, id=%d, distance=%lld", 5833 lastPointerIndex, currentPointerIndex, id, heap[0].distance); 5834 #endif 5835 break; 5836 } 5837 } 5838 5839 // Assign fresh ids to pointers that were not matched in the process. 5840 for (uint32_t i = currentPointerCount - matchedCurrentBits.count(); i != 0; i--) { 5841 uint32_t currentPointerIndex = matchedCurrentBits.markFirstUnmarkedBit(); 5842 uint32_t id = usedIdBits.markFirstUnmarkedBit(); 5843 5844 mCurrentRawPointerData.pointers[currentPointerIndex].id = id; 5845 mCurrentRawPointerData.idToIndex[id] = currentPointerIndex; 5846 mCurrentRawPointerData.markIdBit(id, 5847 mCurrentRawPointerData.isHovering(currentPointerIndex)); 5848 5849 #if DEBUG_POINTER_ASSIGNMENT 5850 ALOGD("assignPointerIds - assigned: cur=%d, id=%d", 5851 currentPointerIndex, id); 5852 #endif 5853 } 5854 } 5855 5856 int32_t TouchInputMapper::getKeyCodeState(uint32_t sourceMask, int32_t keyCode) { 5857 if (mCurrentVirtualKey.down && mCurrentVirtualKey.keyCode == keyCode) { 5858 return AKEY_STATE_VIRTUAL; 5859 } 5860 5861 size_t numVirtualKeys = mVirtualKeys.size(); 5862 for (size_t i = 0; i < numVirtualKeys; i++) { 5863 const VirtualKey& virtualKey = mVirtualKeys[i]; 5864 if (virtualKey.keyCode == keyCode) { 5865 return AKEY_STATE_UP; 5866 } 5867 } 5868 5869 return AKEY_STATE_UNKNOWN; 5870 } 5871 5872 int32_t TouchInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) { 5873 if (mCurrentVirtualKey.down && mCurrentVirtualKey.scanCode == scanCode) { 5874 return AKEY_STATE_VIRTUAL; 5875 } 5876 5877 size_t numVirtualKeys = mVirtualKeys.size(); 5878 for (size_t i = 0; i < numVirtualKeys; i++) { 5879 const VirtualKey& virtualKey = mVirtualKeys[i]; 5880 if (virtualKey.scanCode == scanCode) { 5881 return AKEY_STATE_UP; 5882 } 5883 } 5884 5885 return AKEY_STATE_UNKNOWN; 5886 } 5887 5888 bool TouchInputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, 5889 const int32_t* keyCodes, uint8_t* outFlags) { 5890 size_t numVirtualKeys = mVirtualKeys.size(); 5891 for (size_t i = 0; i < numVirtualKeys; i++) { 5892 const VirtualKey& virtualKey = mVirtualKeys[i]; 5893 5894 for (size_t i = 0; i < numCodes; i++) { 5895 if (virtualKey.keyCode == keyCodes[i]) { 5896 outFlags[i] = 1; 5897 } 5898 } 5899 } 5900 5901 return true; 5902 } 5903 5904 5905 // --- SingleTouchInputMapper --- 5906 5907 SingleTouchInputMapper::SingleTouchInputMapper(InputDevice* device) : 5908 TouchInputMapper(device) { 5909 } 5910 5911 SingleTouchInputMapper::~SingleTouchInputMapper() { 5912 } 5913 5914 void SingleTouchInputMapper::reset(nsecs_t when) { 5915 mSingleTouchMotionAccumulator.reset(getDevice()); 5916 5917 TouchInputMapper::reset(when); 5918 } 5919 5920 void SingleTouchInputMapper::process(const RawEvent* rawEvent) { 5921 TouchInputMapper::process(rawEvent); 5922 5923 mSingleTouchMotionAccumulator.process(rawEvent); 5924 } 5925 5926 void SingleTouchInputMapper::syncTouch(nsecs_t when, bool* outHavePointerIds) { 5927 if (mTouchButtonAccumulator.isToolActive()) { 5928 mCurrentRawPointerData.pointerCount = 1; 5929 mCurrentRawPointerData.idToIndex[0] = 0; 5930 5931 bool isHovering = mTouchButtonAccumulator.getToolType() != AMOTION_EVENT_TOOL_TYPE_MOUSE 5932 && (mTouchButtonAccumulator.isHovering() 5933 || (mRawPointerAxes.pressure.valid 5934 && mSingleTouchMotionAccumulator.getAbsolutePressure() <= 0)); 5935 mCurrentRawPointerData.markIdBit(0, isHovering); 5936 5937 RawPointerData::Pointer& outPointer = mCurrentRawPointerData.pointers[0]; 5938 outPointer.id = 0; 5939 outPointer.x = mSingleTouchMotionAccumulator.getAbsoluteX(); 5940 outPointer.y = mSingleTouchMotionAccumulator.getAbsoluteY(); 5941 outPointer.pressure = mSingleTouchMotionAccumulator.getAbsolutePressure(); 5942 outPointer.touchMajor = 0; 5943 outPointer.touchMinor = 0; 5944 outPointer.toolMajor = mSingleTouchMotionAccumulator.getAbsoluteToolWidth(); 5945 outPointer.toolMinor = mSingleTouchMotionAccumulator.getAbsoluteToolWidth(); 5946 outPointer.orientation = 0; 5947 outPointer.distance = mSingleTouchMotionAccumulator.getAbsoluteDistance(); 5948 outPointer.tiltX = mSingleTouchMotionAccumulator.getAbsoluteTiltX(); 5949 outPointer.tiltY = mSingleTouchMotionAccumulator.getAbsoluteTiltY(); 5950 outPointer.toolType = mTouchButtonAccumulator.getToolType(); 5951 if (outPointer.toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN) { 5952 outPointer.toolType = AMOTION_EVENT_TOOL_TYPE_FINGER; 5953 } 5954 outPointer.isHovering = isHovering; 5955 } 5956 } 5957 5958 void SingleTouchInputMapper::configureRawPointerAxes() { 5959 TouchInputMapper::configureRawPointerAxes(); 5960 5961 getAbsoluteAxisInfo(ABS_X, &mRawPointerAxes.x); 5962 getAbsoluteAxisInfo(ABS_Y, &mRawPointerAxes.y); 5963 getAbsoluteAxisInfo(ABS_PRESSURE, &mRawPointerAxes.pressure); 5964 getAbsoluteAxisInfo(ABS_TOOL_WIDTH, &mRawPointerAxes.toolMajor); 5965 getAbsoluteAxisInfo(ABS_DISTANCE, &mRawPointerAxes.distance); 5966 getAbsoluteAxisInfo(ABS_TILT_X, &mRawPointerAxes.tiltX); 5967 getAbsoluteAxisInfo(ABS_TILT_Y, &mRawPointerAxes.tiltY); 5968 } 5969 5970 bool SingleTouchInputMapper::hasStylus() const { 5971 return mTouchButtonAccumulator.hasStylus(); 5972 } 5973 5974 5975 // --- MultiTouchInputMapper --- 5976 5977 MultiTouchInputMapper::MultiTouchInputMapper(InputDevice* device) : 5978 TouchInputMapper(device) { 5979 } 5980 5981 MultiTouchInputMapper::~MultiTouchInputMapper() { 5982 } 5983 5984 void MultiTouchInputMapper::reset(nsecs_t when) { 5985 mMultiTouchMotionAccumulator.reset(getDevice()); 5986 5987 mPointerIdBits.clear(); 5988 5989 TouchInputMapper::reset(when); 5990 } 5991 5992 void MultiTouchInputMapper::process(const RawEvent* rawEvent) { 5993 TouchInputMapper::process(rawEvent); 5994 5995 mMultiTouchMotionAccumulator.process(rawEvent); 5996 } 5997 5998 void MultiTouchInputMapper::syncTouch(nsecs_t when, bool* outHavePointerIds) { 5999 size_t inCount = mMultiTouchMotionAccumulator.getSlotCount(); 6000 size_t outCount = 0; 6001 BitSet32 newPointerIdBits; 6002 6003 for (size_t inIndex = 0; inIndex < inCount; inIndex++) { 6004 const MultiTouchMotionAccumulator::Slot* inSlot = 6005 mMultiTouchMotionAccumulator.getSlot(inIndex); 6006 if (!inSlot->isInUse()) { 6007 continue; 6008 } 6009 6010 if (outCount >= MAX_POINTERS) { 6011 #if DEBUG_POINTERS 6012 ALOGD("MultiTouch device %s emitted more than maximum of %d pointers; " 6013 "ignoring the rest.", 6014 getDeviceName().string(), MAX_POINTERS); 6015 #endif 6016 break; // too many fingers! 6017 } 6018 6019 RawPointerData::Pointer& outPointer = mCurrentRawPointerData.pointers[outCount]; 6020 outPointer.x = inSlot->getX(); 6021 outPointer.y = inSlot->getY(); 6022 outPointer.pressure = inSlot->getPressure(); 6023 outPointer.touchMajor = inSlot->getTouchMajor(); 6024 outPointer.touchMinor = inSlot->getTouchMinor(); 6025 outPointer.toolMajor = inSlot->getToolMajor(); 6026 outPointer.toolMinor = inSlot->getToolMinor(); 6027 outPointer.orientation = inSlot->getOrientation(); 6028 outPointer.distance = inSlot->getDistance(); 6029 outPointer.tiltX = 0; 6030 outPointer.tiltY = 0; 6031 6032 outPointer.toolType = inSlot->getToolType(); 6033 if (outPointer.toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN) { 6034 outPointer.toolType = mTouchButtonAccumulator.getToolType(); 6035 if (outPointer.toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN) { 6036 outPointer.toolType = AMOTION_EVENT_TOOL_TYPE_FINGER; 6037 } 6038 } 6039 6040 bool isHovering = mTouchButtonAccumulator.getToolType() != AMOTION_EVENT_TOOL_TYPE_MOUSE 6041 && (mTouchButtonAccumulator.isHovering() 6042 || (mRawPointerAxes.pressure.valid && inSlot->getPressure() <= 0)); 6043 outPointer.isHovering = isHovering; 6044 6045 // Assign pointer id using tracking id if available. 6046 if (*outHavePointerIds) { 6047 int32_t trackingId = inSlot->getTrackingId(); 6048 int32_t id = -1; 6049 if (trackingId >= 0) { 6050 for (BitSet32 idBits(mPointerIdBits); !idBits.isEmpty(); ) { 6051 uint32_t n = idBits.clearFirstMarkedBit(); 6052 if (mPointerTrackingIdMap[n] == trackingId) { 6053 id = n; 6054 } 6055 } 6056 6057 if (id < 0 && !mPointerIdBits.isFull()) { 6058 id = mPointerIdBits.markFirstUnmarkedBit(); 6059 mPointerTrackingIdMap[id] = trackingId; 6060 } 6061 } 6062 if (id < 0) { 6063 *outHavePointerIds = false; 6064 mCurrentRawPointerData.clearIdBits(); 6065 newPointerIdBits.clear(); 6066 } else { 6067 outPointer.id = id; 6068 mCurrentRawPointerData.idToIndex[id] = outCount; 6069 mCurrentRawPointerData.markIdBit(id, isHovering); 6070 newPointerIdBits.markBit(id); 6071 } 6072 } 6073 6074 outCount += 1; 6075 } 6076 6077 mCurrentRawPointerData.pointerCount = outCount; 6078 mPointerIdBits = newPointerIdBits; 6079 6080 mMultiTouchMotionAccumulator.finishSync(); 6081 } 6082 6083 void MultiTouchInputMapper::configureRawPointerAxes() { 6084 TouchInputMapper::configureRawPointerAxes(); 6085 6086 getAbsoluteAxisInfo(ABS_MT_POSITION_X, &mRawPointerAxes.x); 6087 getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &mRawPointerAxes.y); 6088 getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR, &mRawPointerAxes.touchMajor); 6089 getAbsoluteAxisInfo(ABS_MT_TOUCH_MINOR, &mRawPointerAxes.touchMinor); 6090 getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR, &mRawPointerAxes.toolMajor); 6091 getAbsoluteAxisInfo(ABS_MT_WIDTH_MINOR, &mRawPointerAxes.toolMinor); 6092 getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &mRawPointerAxes.orientation); 6093 getAbsoluteAxisInfo(ABS_MT_PRESSURE, &mRawPointerAxes.pressure); 6094 getAbsoluteAxisInfo(ABS_MT_DISTANCE, &mRawPointerAxes.distance); 6095 getAbsoluteAxisInfo(ABS_MT_TRACKING_ID, &mRawPointerAxes.trackingId); 6096 getAbsoluteAxisInfo(ABS_MT_SLOT, &mRawPointerAxes.slot); 6097 6098 if (mRawPointerAxes.trackingId.valid 6099 && mRawPointerAxes.slot.valid 6100 && mRawPointerAxes.slot.minValue == 0 && mRawPointerAxes.slot.maxValue > 0) { 6101 size_t slotCount = mRawPointerAxes.slot.maxValue + 1; 6102 if (slotCount > MAX_SLOTS) { 6103 ALOGW("MultiTouch Device %s reported %d slots but the framework " 6104 "only supports a maximum of %d slots at this time.", 6105 getDeviceName().string(), slotCount, MAX_SLOTS); 6106 slotCount = MAX_SLOTS; 6107 } 6108 mMultiTouchMotionAccumulator.configure(getDevice(), 6109 slotCount, true /*usingSlotsProtocol*/); 6110 } else { 6111 mMultiTouchMotionAccumulator.configure(getDevice(), 6112 MAX_POINTERS, false /*usingSlotsProtocol*/); 6113 } 6114 } 6115 6116 bool MultiTouchInputMapper::hasStylus() const { 6117 return mMultiTouchMotionAccumulator.hasStylus() 6118 || mTouchButtonAccumulator.hasStylus(); 6119 } 6120 6121 6122 // --- JoystickInputMapper --- 6123 6124 JoystickInputMapper::JoystickInputMapper(InputDevice* device) : 6125 InputMapper(device) { 6126 } 6127 6128 JoystickInputMapper::~JoystickInputMapper() { 6129 } 6130 6131 uint32_t JoystickInputMapper::getSources() { 6132 return AINPUT_SOURCE_JOYSTICK; 6133 } 6134 6135 void JoystickInputMapper::populateDeviceInfo(InputDeviceInfo* info) { 6136 InputMapper::populateDeviceInfo(info); 6137 6138 for (size_t i = 0; i < mAxes.size(); i++) { 6139 const Axis& axis = mAxes.valueAt(i); 6140 addMotionRange(axis.axisInfo.axis, axis, info); 6141 6142 if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) { 6143 addMotionRange(axis.axisInfo.highAxis, axis, info); 6144 6145 } 6146 } 6147 } 6148 6149 void JoystickInputMapper::addMotionRange(int32_t axisId, const Axis& axis, 6150 InputDeviceInfo* info) { 6151 info->addMotionRange(axisId, AINPUT_SOURCE_JOYSTICK, 6152 axis.min, axis.max, axis.flat, axis.fuzz, axis.resolution); 6153 /* In order to ease the transition for developers from using the old axes 6154 * to the newer, more semantically correct axes, we'll continue to register 6155 * the old axes as duplicates of their corresponding new ones. */ 6156 int32_t compatAxis = getCompatAxis(axisId); 6157 if (compatAxis >= 0) { 6158 info->addMotionRange(compatAxis, AINPUT_SOURCE_JOYSTICK, 6159 axis.min, axis.max, axis.flat, axis.fuzz, axis.resolution); 6160 } 6161 } 6162 6163 /* A mapping from axes the joystick actually has to the axes that should be 6164 * artificially created for compatibility purposes. 6165 * Returns -1 if no compatibility axis is needed. */ 6166 int32_t JoystickInputMapper::getCompatAxis(int32_t axis) { 6167 switch(axis) { 6168 case AMOTION_EVENT_AXIS_LTRIGGER: 6169 return AMOTION_EVENT_AXIS_BRAKE; 6170 case AMOTION_EVENT_AXIS_RTRIGGER: 6171 return AMOTION_EVENT_AXIS_GAS; 6172 } 6173 return -1; 6174 } 6175 6176 void JoystickInputMapper::dump(String8& dump) { 6177 dump.append(INDENT2 "Joystick Input Mapper:\n"); 6178 6179 dump.append(INDENT3 "Axes:\n"); 6180 size_t numAxes = mAxes.size(); 6181 for (size_t i = 0; i < numAxes; i++) { 6182 const Axis& axis = mAxes.valueAt(i); 6183 const char* label = getAxisLabel(axis.axisInfo.axis); 6184 if (label) { 6185 dump.appendFormat(INDENT4 "%s", label); 6186 } else { 6187 dump.appendFormat(INDENT4 "%d", axis.axisInfo.axis); 6188 } 6189 if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) { 6190 label = getAxisLabel(axis.axisInfo.highAxis); 6191 if (label) { 6192 dump.appendFormat(" / %s (split at %d)", label, axis.axisInfo.splitValue); 6193 } else { 6194 dump.appendFormat(" / %d (split at %d)", axis.axisInfo.highAxis, 6195 axis.axisInfo.splitValue); 6196 } 6197 } else if (axis.axisInfo.mode == AxisInfo::MODE_INVERT) { 6198 dump.append(" (invert)"); 6199 } 6200 6201 dump.appendFormat(": min=%0.5f, max=%0.5f, flat=%0.5f, fuzz=%0.5f, resolution=%0.5f\n", 6202 axis.min, axis.max, axis.flat, axis.fuzz, axis.resolution); 6203 dump.appendFormat(INDENT4 " scale=%0.5f, offset=%0.5f, " 6204 "highScale=%0.5f, highOffset=%0.5f\n", 6205 axis.scale, axis.offset, axis.highScale, axis.highOffset); 6206 dump.appendFormat(INDENT4 " rawAxis=%d, rawMin=%d, rawMax=%d, " 6207 "rawFlat=%d, rawFuzz=%d, rawResolution=%d\n", 6208 mAxes.keyAt(i), axis.rawAxisInfo.minValue, axis.rawAxisInfo.maxValue, 6209 axis.rawAxisInfo.flat, axis.rawAxisInfo.fuzz, axis.rawAxisInfo.resolution); 6210 } 6211 } 6212 6213 void JoystickInputMapper::configure(nsecs_t when, 6214 const InputReaderConfiguration* config, uint32_t changes) { 6215 InputMapper::configure(when, config, changes); 6216 6217 if (!changes) { // first time only 6218 // Collect all axes. 6219 for (int32_t abs = 0; abs <= ABS_MAX; abs++) { 6220 if (!(getAbsAxisUsage(abs, getDevice()->getClasses()) 6221 & INPUT_DEVICE_CLASS_JOYSTICK)) { 6222 continue; // axis must be claimed by a different device 6223 } 6224 6225 RawAbsoluteAxisInfo rawAxisInfo; 6226 getAbsoluteAxisInfo(abs, &rawAxisInfo); 6227 if (rawAxisInfo.valid) { 6228 // Map axis. 6229 AxisInfo axisInfo; 6230 bool explicitlyMapped = !getEventHub()->mapAxis(getDeviceId(), abs, &axisInfo); 6231 if (!explicitlyMapped) { 6232 // Axis is not explicitly mapped, will choose a generic axis later. 6233 axisInfo.mode = AxisInfo::MODE_NORMAL; 6234 axisInfo.axis = -1; 6235 } 6236 6237 // Apply flat override. 6238 int32_t rawFlat = axisInfo.flatOverride < 0 6239 ? rawAxisInfo.flat : axisInfo.flatOverride; 6240 6241 // Calculate scaling factors and limits. 6242 Axis axis; 6243 if (axisInfo.mode == AxisInfo::MODE_SPLIT) { 6244 float scale = 1.0f / (axisInfo.splitValue - rawAxisInfo.minValue); 6245 float highScale = 1.0f / (rawAxisInfo.maxValue - axisInfo.splitValue); 6246 axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, 6247 scale, 0.0f, highScale, 0.0f, 6248 0.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale, 6249 rawAxisInfo.resolution * scale); 6250 } else if (isCenteredAxis(axisInfo.axis)) { 6251 float scale = 2.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue); 6252 float offset = avg(rawAxisInfo.minValue, rawAxisInfo.maxValue) * -scale; 6253 axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, 6254 scale, offset, scale, offset, 6255 -1.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale, 6256 rawAxisInfo.resolution * scale); 6257 } else { 6258 float scale = 1.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue); 6259 axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, 6260 scale, 0.0f, scale, 0.0f, 6261 0.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale, 6262 rawAxisInfo.resolution * scale); 6263 } 6264 6265 // To eliminate noise while the joystick is at rest, filter out small variations 6266 // in axis values up front. 6267 axis.filter = axis.flat * 0.25f; 6268 6269 mAxes.add(abs, axis); 6270 } 6271 } 6272 6273 // If there are too many axes, start dropping them. 6274 // Prefer to keep explicitly mapped axes. 6275 if (mAxes.size() > PointerCoords::MAX_AXES) { 6276 ALOGI("Joystick '%s' has %d axes but the framework only supports a maximum of %d.", 6277 getDeviceName().string(), mAxes.size(), PointerCoords::MAX_AXES); 6278 pruneAxes(true); 6279 pruneAxes(false); 6280 } 6281 6282 // Assign generic axis ids to remaining axes. 6283 int32_t nextGenericAxisId = AMOTION_EVENT_AXIS_GENERIC_1; 6284 size_t numAxes = mAxes.size(); 6285 for (size_t i = 0; i < numAxes; i++) { 6286 Axis& axis = mAxes.editValueAt(i); 6287 if (axis.axisInfo.axis < 0) { 6288 while (nextGenericAxisId <= AMOTION_EVENT_AXIS_GENERIC_16 6289 && haveAxis(nextGenericAxisId)) { 6290 nextGenericAxisId += 1; 6291 } 6292 6293 if (nextGenericAxisId <= AMOTION_EVENT_AXIS_GENERIC_16) { 6294 axis.axisInfo.axis = nextGenericAxisId; 6295 nextGenericAxisId += 1; 6296 } else { 6297 ALOGI("Ignoring joystick '%s' axis %d because all of the generic axis ids " 6298 "have already been assigned to other axes.", 6299 getDeviceName().string(), mAxes.keyAt(i)); 6300 mAxes.removeItemsAt(i--); 6301 numAxes -= 1; 6302 } 6303 } 6304 } 6305 } 6306 } 6307 6308 bool JoystickInputMapper::haveAxis(int32_t axisId) { 6309 size_t numAxes = mAxes.size(); 6310 for (size_t i = 0; i < numAxes; i++) { 6311 const Axis& axis = mAxes.valueAt(i); 6312 if (axis.axisInfo.axis == axisId 6313 || (axis.axisInfo.mode == AxisInfo::MODE_SPLIT 6314 && axis.axisInfo.highAxis == axisId)) { 6315 return true; 6316 } 6317 } 6318 return false; 6319 } 6320 6321 void JoystickInputMapper::pruneAxes(bool ignoreExplicitlyMappedAxes) { 6322 size_t i = mAxes.size(); 6323 while (mAxes.size() > PointerCoords::MAX_AXES && i-- > 0) { 6324 if (ignoreExplicitlyMappedAxes && mAxes.valueAt(i).explicitlyMapped) { 6325 continue; 6326 } 6327 ALOGI("Discarding joystick '%s' axis %d because there are too many axes.", 6328 getDeviceName().string(), mAxes.keyAt(i)); 6329 mAxes.removeItemsAt(i); 6330 } 6331 } 6332 6333 bool JoystickInputMapper::isCenteredAxis(int32_t axis) { 6334 switch (axis) { 6335 case AMOTION_EVENT_AXIS_X: 6336 case AMOTION_EVENT_AXIS_Y: 6337 case AMOTION_EVENT_AXIS_Z: 6338 case AMOTION_EVENT_AXIS_RX: 6339 case AMOTION_EVENT_AXIS_RY: 6340 case AMOTION_EVENT_AXIS_RZ: 6341 case AMOTION_EVENT_AXIS_HAT_X: 6342 case AMOTION_EVENT_AXIS_HAT_Y: 6343 case AMOTION_EVENT_AXIS_ORIENTATION: 6344 case AMOTION_EVENT_AXIS_RUDDER: 6345 case AMOTION_EVENT_AXIS_WHEEL: 6346 return true; 6347 default: 6348 return false; 6349 } 6350 } 6351 6352 void JoystickInputMapper::reset(nsecs_t when) { 6353 // Recenter all axes. 6354 size_t numAxes = mAxes.size(); 6355 for (size_t i = 0; i < numAxes; i++) { 6356 Axis& axis = mAxes.editValueAt(i); 6357 axis.resetValue(); 6358 } 6359 6360 InputMapper::reset(when); 6361 } 6362 6363 void JoystickInputMapper::process(const RawEvent* rawEvent) { 6364 switch (rawEvent->type) { 6365 case EV_ABS: { 6366 ssize_t index = mAxes.indexOfKey(rawEvent->code); 6367 if (index >= 0) { 6368 Axis& axis = mAxes.editValueAt(index); 6369 float newValue, highNewValue; 6370 switch (axis.axisInfo.mode) { 6371 case AxisInfo::MODE_INVERT: 6372 newValue = (axis.rawAxisInfo.maxValue - rawEvent->value) 6373 * axis.scale + axis.offset; 6374 highNewValue = 0.0f; 6375 break; 6376 case AxisInfo::MODE_SPLIT: 6377 if (rawEvent->value < axis.axisInfo.splitValue) { 6378 newValue = (axis.axisInfo.splitValue - rawEvent->value) 6379 * axis.scale + axis.offset; 6380 highNewValue = 0.0f; 6381 } else if (rawEvent->value > axis.axisInfo.splitValue) { 6382 newValue = 0.0f; 6383 highNewValue = (rawEvent->value - axis.axisInfo.splitValue) 6384 * axis.highScale + axis.highOffset; 6385 } else { 6386 newValue = 0.0f; 6387 highNewValue = 0.0f; 6388 } 6389 break; 6390 default: 6391 newValue = rawEvent->value * axis.scale + axis.offset; 6392 highNewValue = 0.0f; 6393 break; 6394 } 6395 axis.newValue = newValue; 6396 axis.highNewValue = highNewValue; 6397 } 6398 break; 6399 } 6400 6401 case EV_SYN: 6402 switch (rawEvent->code) { 6403 case SYN_REPORT: 6404 sync(rawEvent->when, false /*force*/); 6405 break; 6406 } 6407 break; 6408 } 6409 } 6410 6411 void JoystickInputMapper::sync(nsecs_t when, bool force) { 6412 if (!filterAxes(force)) { 6413 return; 6414 } 6415 6416 int32_t metaState = mContext->getGlobalMetaState(); 6417 int32_t buttonState = 0; 6418 6419 PointerProperties pointerProperties; 6420 pointerProperties.clear(); 6421 pointerProperties.id = 0; 6422 pointerProperties.toolType = AMOTION_EVENT_TOOL_TYPE_UNKNOWN; 6423 6424 PointerCoords pointerCoords; 6425 pointerCoords.clear(); 6426 6427 size_t numAxes = mAxes.size(); 6428 for (size_t i = 0; i < numAxes; i++) { 6429 const Axis& axis = mAxes.valueAt(i); 6430 setPointerCoordsAxisValue(&pointerCoords, axis.axisInfo.axis, axis.currentValue); 6431 if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) { 6432 setPointerCoordsAxisValue(&pointerCoords, axis.axisInfo.highAxis, 6433 axis.highCurrentValue); 6434 } 6435 } 6436 6437 // Moving a joystick axis should not wake the device because joysticks can 6438 // be fairly noisy even when not in use. On the other hand, pushing a gamepad 6439 // button will likely wake the device. 6440 // TODO: Use the input device configuration to control this behavior more finely. 6441 uint32_t policyFlags = 0; 6442 6443 NotifyMotionArgs args(when, getDeviceId(), AINPUT_SOURCE_JOYSTICK, policyFlags, 6444 AMOTION_EVENT_ACTION_MOVE, 0, metaState, buttonState, AMOTION_EVENT_EDGE_FLAG_NONE, 6445 ADISPLAY_ID_NONE, 1, &pointerProperties, &pointerCoords, 0, 0, 0); 6446 getListener()->notifyMotion(&args); 6447 } 6448 6449 void JoystickInputMapper::setPointerCoordsAxisValue(PointerCoords* pointerCoords, 6450 int32_t axis, float value) { 6451 pointerCoords->setAxisValue(axis, value); 6452 /* In order to ease the transition for developers from using the old axes 6453 * to the newer, more semantically correct axes, we'll continue to produce 6454 * values for the old axes as mirrors of the value of their corresponding 6455 * new axes. */ 6456 int32_t compatAxis = getCompatAxis(axis); 6457 if (compatAxis >= 0) { 6458 pointerCoords->setAxisValue(compatAxis, value); 6459 } 6460 } 6461 6462 bool JoystickInputMapper::filterAxes(bool force) { 6463 bool atLeastOneSignificantChange = force; 6464 size_t numAxes = mAxes.size(); 6465 for (size_t i = 0; i < numAxes; i++) { 6466 Axis& axis = mAxes.editValueAt(i); 6467 if (force || hasValueChangedSignificantly(axis.filter, 6468 axis.newValue, axis.currentValue, axis.min, axis.max)) { 6469 axis.currentValue = axis.newValue; 6470 atLeastOneSignificantChange = true; 6471 } 6472 if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) { 6473 if (force || hasValueChangedSignificantly(axis.filter, 6474 axis.highNewValue, axis.highCurrentValue, axis.min, axis.max)) { 6475 axis.highCurrentValue = axis.highNewValue; 6476 atLeastOneSignificantChange = true; 6477 } 6478 } 6479 } 6480 return atLeastOneSignificantChange; 6481 } 6482 6483 bool JoystickInputMapper::hasValueChangedSignificantly( 6484 float filter, float newValue, float currentValue, float min, float max) { 6485 if (newValue != currentValue) { 6486 // Filter out small changes in value unless the value is converging on the axis 6487 // bounds or center point. This is intended to reduce the amount of information 6488 // sent to applications by particularly noisy joysticks (such as PS3). 6489 if (fabs(newValue - currentValue) > filter 6490 || hasMovedNearerToValueWithinFilteredRange(filter, newValue, currentValue, min) 6491 || hasMovedNearerToValueWithinFilteredRange(filter, newValue, currentValue, max) 6492 || hasMovedNearerToValueWithinFilteredRange(filter, newValue, currentValue, 0)) { 6493 return true; 6494 } 6495 } 6496 return false; 6497 } 6498 6499 bool JoystickInputMapper::hasMovedNearerToValueWithinFilteredRange( 6500 float filter, float newValue, float currentValue, float thresholdValue) { 6501 float newDistance = fabs(newValue - thresholdValue); 6502 if (newDistance < filter) { 6503 float oldDistance = fabs(currentValue - thresholdValue); 6504 if (newDistance < oldDistance) { 6505 return true; 6506 } 6507 } 6508 return false; 6509 } 6510 6511 } // namespace android 6512