| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _UI_INPUT_READER_H |
| #define _UI_INPUT_READER_H |
| |
| #include "EventHub.h" |
| #include "PointerControllerInterface.h" |
| #include "InputListener.h" |
| |
| #include <input/DisplayViewport.h> |
| #include <input/Input.h> |
| #include <input/VelocityControl.h> |
| #include <input/VelocityTracker.h> |
| #include <ui/DisplayInfo.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/Condition.h> |
| #include <utils/Thread.h> |
| #include <utils/Mutex.h> |
| #include <utils/Timers.h> |
| #include <utils/RefBase.h> |
| #include <utils/String8.h> |
| #include <utils/BitSet.h> |
| #include <utils/SortedVector.h> |
| |
| #include <stddef.h> |
| #include <unistd.h> |
| |
| // Maximum supported size of a vibration pattern. |
| // Must be at least 2. |
| #define MAX_VIBRATE_PATTERN_SIZE 100 |
| |
| // Maximum allowable delay value in a vibration pattern before |
| // which the delay will be truncated. |
| #define MAX_VIBRATE_PATTERN_DELAY_NSECS (1000000 * 1000000000LL) |
| |
| namespace android { |
| |
| class InputDevice; |
| class InputMapper; |
| |
| /* |
| * Input reader configuration. |
| * |
| * Specifies various options that modify the behavior of the input reader. |
| */ |
| struct InputReaderConfiguration { |
| // Describes changes that have occurred. |
| enum { |
| // The pointer speed changed. |
| CHANGE_POINTER_SPEED = 1 << 0, |
| |
| // The pointer gesture control changed. |
| CHANGE_POINTER_GESTURE_ENABLEMENT = 1 << 1, |
| |
| // The display size or orientation changed. |
| CHANGE_DISPLAY_INFO = 1 << 2, |
| |
| // The visible touches option changed. |
| CHANGE_SHOW_TOUCHES = 1 << 3, |
| |
| // The keyboard layouts must be reloaded. |
| CHANGE_KEYBOARD_LAYOUTS = 1 << 4, |
| |
| // The device name alias supplied by the may have changed for some devices. |
| CHANGE_DEVICE_ALIAS = 1 << 5, |
| |
| // The location calibration matrix changed. |
| CHANGE_TOUCH_AFFINE_TRANSFORMATION = 1 << 6, |
| |
| // The presence of an external stylus has changed. |
| CHANGE_EXTERNAL_STYLUS_PRESENCE = 1 << 7, |
| |
| // The pointer capture mode has changed. |
| CHANGE_POINTER_CAPTURE = 1 << 8, |
| |
| // The set of disabled input devices (disabledDevices) has changed. |
| CHANGE_ENABLED_STATE = 1 << 9, |
| |
| // All devices must be reopened. |
| CHANGE_MUST_REOPEN = 1 << 31, |
| }; |
| |
| // Gets the amount of time to disable virtual keys after the screen is touched |
| // in order to filter out accidental virtual key presses due to swiping gestures |
| // or taps near the edge of the display. May be 0 to disable the feature. |
| nsecs_t virtualKeyQuietTime; |
| |
| // The excluded device names for the platform. |
| // Devices with these names will be ignored. |
| Vector<String8> excludedDeviceNames; |
| |
| // Velocity control parameters for mouse pointer movements. |
| VelocityControlParameters pointerVelocityControlParameters; |
| |
| // Velocity control parameters for mouse wheel movements. |
| VelocityControlParameters wheelVelocityControlParameters; |
| |
| // True if pointer gestures are enabled. |
| bool pointerGesturesEnabled; |
| |
| // Quiet time between certain pointer gesture transitions. |
| // Time to allow for all fingers or buttons to settle into a stable state before |
| // starting a new gesture. |
| nsecs_t pointerGestureQuietInterval; |
| |
| // The minimum speed that a pointer must travel for us to consider switching the active |
| // touch pointer to it during a drag. This threshold is set to avoid switching due |
| // to noise from a finger resting on the touch pad (perhaps just pressing it down). |
| float pointerGestureDragMinSwitchSpeed; // in pixels per second |
| |
| // Tap gesture delay time. |
| // The time between down and up must be less than this to be considered a tap. |
| nsecs_t pointerGestureTapInterval; |
| |
| // Tap drag gesture delay time. |
| // The time between the previous tap's up and the next down must be less than |
| // this to be considered a drag. Otherwise, the previous tap is finished and a |
| // new tap begins. |
| // |
| // Note that the previous tap will be held down for this entire duration so this |
| // interval must be shorter than the long press timeout. |
| nsecs_t pointerGestureTapDragInterval; |
| |
| // The distance in pixels that the pointer is allowed to move from initial down |
| // to up and still be called a tap. |
| float pointerGestureTapSlop; // in pixels |
| |
| // Time after the first touch points go down to settle on an initial centroid. |
| // This is intended to be enough time to handle cases where the user puts down two |
| // fingers at almost but not quite exactly the same time. |
| nsecs_t pointerGestureMultitouchSettleInterval; |
| |
| // The transition from PRESS to SWIPE or FREEFORM gesture mode is made when |
| // at least two pointers have moved at least this far from their starting place. |
| float pointerGestureMultitouchMinDistance; // in pixels |
| |
| // The transition from PRESS to SWIPE gesture mode can only occur when the |
| // cosine of the angle between the two vectors is greater than or equal to than this value |
| // which indicates that the vectors are oriented in the same direction. |
| // When the vectors are oriented in the exactly same direction, the cosine is 1.0. |
| // (In exactly opposite directions, the cosine is -1.0.) |
| float pointerGestureSwipeTransitionAngleCosine; |
| |
| // The transition from PRESS to SWIPE gesture mode can only occur when the |
| // fingers are no more than this far apart relative to the diagonal size of |
| // the touch pad. For example, a ratio of 0.5 means that the fingers must be |
| // no more than half the diagonal size of the touch pad apart. |
| float pointerGestureSwipeMaxWidthRatio; |
| |
| // The gesture movement speed factor relative to the size of the display. |
| // Movement speed applies when the fingers are moving in the same direction. |
| // Without acceleration, a full swipe of the touch pad diagonal in movement mode |
| // will cover this portion of the display diagonal. |
| float pointerGestureMovementSpeedRatio; |
| |
| // The gesture zoom speed factor relative to the size of the display. |
| // Zoom speed applies when the fingers are mostly moving relative to each other |
| // to execute a scale gesture or similar. |
| // Without acceleration, a full swipe of the touch pad diagonal in zoom mode |
| // will cover this portion of the display diagonal. |
| float pointerGestureZoomSpeedRatio; |
| |
| // True to show the location of touches on the touch screen as spots. |
| bool showTouches; |
| |
| // True if pointer capture is enabled. |
| bool pointerCapture; |
| |
| // The set of currently disabled input devices. |
| SortedVector<int32_t> disabledDevices; |
| |
| InputReaderConfiguration() : |
| virtualKeyQuietTime(0), |
| pointerVelocityControlParameters(1.0f, 500.0f, 3000.0f, 3.0f), |
| wheelVelocityControlParameters(1.0f, 15.0f, 50.0f, 4.0f), |
| pointerGesturesEnabled(true), |
| pointerGestureQuietInterval(100 * 1000000LL), // 100 ms |
| pointerGestureDragMinSwitchSpeed(50), // 50 pixels per second |
| pointerGestureTapInterval(150 * 1000000LL), // 150 ms |
| pointerGestureTapDragInterval(150 * 1000000LL), // 150 ms |
| pointerGestureTapSlop(10.0f), // 10 pixels |
| pointerGestureMultitouchSettleInterval(100 * 1000000LL), // 100 ms |
| pointerGestureMultitouchMinDistance(15), // 15 pixels |
| pointerGestureSwipeTransitionAngleCosine(0.2588f), // cosine of 75 degrees |
| pointerGestureSwipeMaxWidthRatio(0.25f), |
| pointerGestureMovementSpeedRatio(0.8f), |
| pointerGestureZoomSpeedRatio(0.3f), |
| showTouches(false) { } |
| |
| bool getDisplayViewport(ViewportType viewportType, const String8* displayId, |
| DisplayViewport* outViewport) const; |
| void setPhysicalDisplayViewport(ViewportType viewportType, const DisplayViewport& viewport); |
| void setVirtualDisplayViewports(const Vector<DisplayViewport>& viewports); |
| |
| |
| void dump(String8& dump) const; |
| void dumpViewport(String8& dump, const DisplayViewport& viewport) const; |
| |
| private: |
| DisplayViewport mInternalDisplay; |
| DisplayViewport mExternalDisplay; |
| Vector<DisplayViewport> mVirtualDisplays; |
| }; |
| |
| |
| struct TouchAffineTransformation { |
| float x_scale; |
| float x_ymix; |
| float x_offset; |
| float y_xmix; |
| float y_scale; |
| float y_offset; |
| |
| TouchAffineTransformation() : |
| x_scale(1.0f), x_ymix(0.0f), x_offset(0.0f), |
| y_xmix(0.0f), y_scale(1.0f), y_offset(0.0f) { |
| } |
| |
| TouchAffineTransformation(float xscale, float xymix, float xoffset, |
| float yxmix, float yscale, float yoffset) : |
| x_scale(xscale), x_ymix(xymix), x_offset(xoffset), |
| y_xmix(yxmix), y_scale(yscale), y_offset(yoffset) { |
| } |
| |
| void applyTo(float& x, float& y) const; |
| }; |
| |
| |
| /* |
| * Input reader policy interface. |
| * |
| * The input reader policy is used by the input reader to interact with the Window Manager |
| * and other system components. |
| * |
| * The actual implementation is partially supported by callbacks into the DVM |
| * via JNI. This interface is also mocked in the unit tests. |
| * |
| * These methods must NOT re-enter the input reader since they may be called while |
| * holding the input reader lock. |
| */ |
| class InputReaderPolicyInterface : public virtual RefBase { |
| protected: |
| InputReaderPolicyInterface() { } |
| virtual ~InputReaderPolicyInterface() { } |
| |
| public: |
| /* Gets the input reader configuration. */ |
| virtual void getReaderConfiguration(InputReaderConfiguration* outConfig) = 0; |
| |
| /* Gets a pointer controller associated with the specified cursor device (ie. a mouse). */ |
| virtual sp<PointerControllerInterface> obtainPointerController(int32_t deviceId) = 0; |
| |
| /* Notifies the input reader policy that some input devices have changed |
| * and provides information about all current input devices. |
| */ |
| virtual void notifyInputDevicesChanged(const Vector<InputDeviceInfo>& inputDevices) = 0; |
| |
| /* Gets the keyboard layout for a particular input device. */ |
| virtual sp<KeyCharacterMap> getKeyboardLayoutOverlay( |
| const InputDeviceIdentifier& identifier) = 0; |
| |
| /* Gets a user-supplied alias for a particular input device, or an empty string if none. */ |
| virtual String8 getDeviceAlias(const InputDeviceIdentifier& identifier) = 0; |
| |
| /* Gets the affine calibration associated with the specified device. */ |
| virtual TouchAffineTransformation getTouchAffineTransformation( |
| const String8& inputDeviceDescriptor, int32_t surfaceRotation) = 0; |
| }; |
| |
| |
| /* Processes raw input events and sends cooked event data to an input listener. */ |
| class InputReaderInterface : public virtual RefBase { |
| protected: |
| InputReaderInterface() { } |
| virtual ~InputReaderInterface() { } |
| |
| public: |
| /* Dumps the state of the input reader. |
| * |
| * This method may be called on any thread (usually by the input manager). */ |
| virtual void dump(String8& dump) = 0; |
| |
| /* Called by the heatbeat to ensures that the reader has not deadlocked. */ |
| virtual void monitor() = 0; |
| |
| /* Returns true if the input device is enabled. */ |
| virtual bool isInputDeviceEnabled(int32_t deviceId) = 0; |
| |
| /* Runs a single iteration of the processing loop. |
| * Nominally reads and processes one incoming message from the EventHub. |
| * |
| * This method should be called on the input reader thread. |
| */ |
| virtual void loopOnce() = 0; |
| |
| /* Gets information about all input devices. |
| * |
| * This method may be called on any thread (usually by the input manager). |
| */ |
| virtual void getInputDevices(Vector<InputDeviceInfo>& outInputDevices) = 0; |
| |
| /* Query current input state. */ |
| virtual int32_t getScanCodeState(int32_t deviceId, uint32_t sourceMask, |
| int32_t scanCode) = 0; |
| virtual int32_t getKeyCodeState(int32_t deviceId, uint32_t sourceMask, |
| int32_t keyCode) = 0; |
| virtual int32_t getSwitchState(int32_t deviceId, uint32_t sourceMask, |
| int32_t sw) = 0; |
| |
| /* Toggle Caps Lock */ |
| virtual void toggleCapsLockState(int32_t deviceId) = 0; |
| |
| /* Determine whether physical keys exist for the given framework-domain key codes. */ |
| virtual bool hasKeys(int32_t deviceId, uint32_t sourceMask, |
| size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) = 0; |
| |
| /* Requests that a reconfiguration of all input devices. |
| * The changes flag is a bitfield that indicates what has changed and whether |
| * the input devices must all be reopened. */ |
| virtual void requestRefreshConfiguration(uint32_t changes) = 0; |
| |
| /* Controls the vibrator of a particular input device. */ |
| virtual void vibrate(int32_t deviceId, const nsecs_t* pattern, size_t patternSize, |
| ssize_t repeat, int32_t token) = 0; |
| virtual void cancelVibrate(int32_t deviceId, int32_t token) = 0; |
| }; |
| |
| struct StylusState { |
| /* Time the stylus event was received. */ |
| nsecs_t when; |
| /* Pressure as reported by the stylus, normalized to the range [0, 1.0]. */ |
| float pressure; |
| /* The state of the stylus buttons as a bitfield (e.g. AMOTION_EVENT_BUTTON_SECONDARY). */ |
| uint32_t buttons; |
| /* Which tool type the stylus is currently using (e.g. AMOTION_EVENT_TOOL_TYPE_ERASER). */ |
| int32_t toolType; |
| |
| void copyFrom(const StylusState& other) { |
| when = other.when; |
| pressure = other.pressure; |
| buttons = other.buttons; |
| toolType = other.toolType; |
| } |
| |
| void clear() { |
| when = LLONG_MAX; |
| pressure = 0.f; |
| buttons = 0; |
| toolType = AMOTION_EVENT_TOOL_TYPE_UNKNOWN; |
| } |
| }; |
| |
| |
| /* Internal interface used by individual input devices to access global input device state |
| * and parameters maintained by the input reader. |
| */ |
| class InputReaderContext { |
| public: |
| InputReaderContext() { } |
| virtual ~InputReaderContext() { } |
| |
| virtual void updateGlobalMetaState() = 0; |
| virtual int32_t getGlobalMetaState() = 0; |
| |
| virtual void disableVirtualKeysUntil(nsecs_t time) = 0; |
| virtual bool shouldDropVirtualKey(nsecs_t now, |
| InputDevice* device, int32_t keyCode, int32_t scanCode) = 0; |
| |
| virtual void fadePointer() = 0; |
| |
| virtual void requestTimeoutAtTime(nsecs_t when) = 0; |
| virtual int32_t bumpGeneration() = 0; |
| |
| virtual void getExternalStylusDevices(Vector<InputDeviceInfo>& outDevices) = 0; |
| virtual void dispatchExternalStylusState(const StylusState& outState) = 0; |
| |
| virtual InputReaderPolicyInterface* getPolicy() = 0; |
| virtual InputListenerInterface* getListener() = 0; |
| virtual EventHubInterface* getEventHub() = 0; |
| }; |
| |
| |
| /* The input reader reads raw event data from the event hub and processes it into input events |
| * that it sends to the input listener. Some functions of the input reader, such as early |
| * event filtering in low power states, are controlled by a separate policy object. |
| * |
| * The InputReader owns a collection of InputMappers. Most of the work it does happens |
| * on the input reader thread but the InputReader can receive queries from other system |
| * components running on arbitrary threads. To keep things manageable, the InputReader |
| * uses a single Mutex to guard its state. The Mutex may be held while calling into the |
| * EventHub or the InputReaderPolicy but it is never held while calling into the |
| * InputListener. |
| */ |
| class InputReader : public InputReaderInterface { |
| public: |
| InputReader(const sp<EventHubInterface>& eventHub, |
| const sp<InputReaderPolicyInterface>& policy, |
| const sp<InputListenerInterface>& listener); |
| virtual ~InputReader(); |
| |
| virtual void dump(String8& dump); |
| virtual void monitor(); |
| |
| virtual void loopOnce(); |
| |
| virtual void getInputDevices(Vector<InputDeviceInfo>& outInputDevices); |
| |
| virtual bool isInputDeviceEnabled(int32_t deviceId); |
| |
| virtual int32_t getScanCodeState(int32_t deviceId, uint32_t sourceMask, |
| int32_t scanCode); |
| virtual int32_t getKeyCodeState(int32_t deviceId, uint32_t sourceMask, |
| int32_t keyCode); |
| virtual int32_t getSwitchState(int32_t deviceId, uint32_t sourceMask, |
| int32_t sw); |
| |
| virtual void toggleCapsLockState(int32_t deviceId); |
| |
| virtual bool hasKeys(int32_t deviceId, uint32_t sourceMask, |
| size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags); |
| |
| virtual void requestRefreshConfiguration(uint32_t changes); |
| |
| virtual void vibrate(int32_t deviceId, const nsecs_t* pattern, size_t patternSize, |
| ssize_t repeat, int32_t token); |
| virtual void cancelVibrate(int32_t deviceId, int32_t token); |
| |
| protected: |
| // These members are protected so they can be instrumented by test cases. |
| virtual InputDevice* createDeviceLocked(int32_t deviceId, int32_t controllerNumber, |
| const InputDeviceIdentifier& identifier, uint32_t classes); |
| |
| class ContextImpl : public InputReaderContext { |
| InputReader* mReader; |
| |
| public: |
| explicit ContextImpl(InputReader* reader); |
| |
| virtual void updateGlobalMetaState(); |
| virtual int32_t getGlobalMetaState(); |
| virtual void disableVirtualKeysUntil(nsecs_t time); |
| virtual bool shouldDropVirtualKey(nsecs_t now, |
| InputDevice* device, int32_t keyCode, int32_t scanCode); |
| virtual void fadePointer(); |
| virtual void requestTimeoutAtTime(nsecs_t when); |
| virtual int32_t bumpGeneration(); |
| virtual void getExternalStylusDevices(Vector<InputDeviceInfo>& outDevices); |
| virtual void dispatchExternalStylusState(const StylusState& outState); |
| virtual InputReaderPolicyInterface* getPolicy(); |
| virtual InputListenerInterface* getListener(); |
| virtual EventHubInterface* getEventHub(); |
| } mContext; |
| |
| friend class ContextImpl; |
| |
| private: |
| Mutex mLock; |
| |
| Condition mReaderIsAliveCondition; |
| |
| sp<EventHubInterface> mEventHub; |
| sp<InputReaderPolicyInterface> mPolicy; |
| sp<QueuedInputListener> mQueuedListener; |
| |
| InputReaderConfiguration mConfig; |
| |
| // The event queue. |
| static const int EVENT_BUFFER_SIZE = 256; |
| RawEvent mEventBuffer[EVENT_BUFFER_SIZE]; |
| |
| KeyedVector<int32_t, InputDevice*> mDevices; |
| |
| // low-level input event decoding and device management |
| void processEventsLocked(const RawEvent* rawEvents, size_t count); |
| |
| void addDeviceLocked(nsecs_t when, int32_t deviceId); |
| void removeDeviceLocked(nsecs_t when, int32_t deviceId); |
| void processEventsForDeviceLocked(int32_t deviceId, const RawEvent* rawEvents, size_t count); |
| void timeoutExpiredLocked(nsecs_t when); |
| |
| void handleConfigurationChangedLocked(nsecs_t when); |
| |
| int32_t mGlobalMetaState; |
| void updateGlobalMetaStateLocked(); |
| int32_t getGlobalMetaStateLocked(); |
| |
| void notifyExternalStylusPresenceChanged(); |
| void getExternalStylusDevicesLocked(Vector<InputDeviceInfo>& outDevices); |
| void dispatchExternalStylusState(const StylusState& state); |
| |
| void fadePointerLocked(); |
| |
| int32_t mGeneration; |
| int32_t bumpGenerationLocked(); |
| |
| void getInputDevicesLocked(Vector<InputDeviceInfo>& outInputDevices); |
| |
| nsecs_t mDisableVirtualKeysTimeout; |
| void disableVirtualKeysUntilLocked(nsecs_t time); |
| bool shouldDropVirtualKeyLocked(nsecs_t now, |
| InputDevice* device, int32_t keyCode, int32_t scanCode); |
| |
| nsecs_t mNextTimeout; |
| void requestTimeoutAtTimeLocked(nsecs_t when); |
| |
| uint32_t mConfigurationChangesToRefresh; |
| void refreshConfigurationLocked(uint32_t changes); |
| |
| // state queries |
| typedef int32_t (InputDevice::*GetStateFunc)(uint32_t sourceMask, int32_t code); |
| int32_t getStateLocked(int32_t deviceId, uint32_t sourceMask, int32_t code, |
| GetStateFunc getStateFunc); |
| bool markSupportedKeyCodesLocked(int32_t deviceId, uint32_t sourceMask, size_t numCodes, |
| const int32_t* keyCodes, uint8_t* outFlags); |
| }; |
| |
| |
| /* Reads raw events from the event hub and processes them, endlessly. */ |
| class InputReaderThread : public Thread { |
| public: |
| explicit InputReaderThread(const sp<InputReaderInterface>& reader); |
| virtual ~InputReaderThread(); |
| |
| private: |
| sp<InputReaderInterface> mReader; |
| |
| virtual bool threadLoop(); |
| }; |
| |
| |
| /* Represents the state of a single input device. */ |
| class InputDevice { |
| public: |
| InputDevice(InputReaderContext* context, int32_t id, int32_t generation, int32_t |
| controllerNumber, const InputDeviceIdentifier& identifier, uint32_t classes); |
| ~InputDevice(); |
| |
| inline InputReaderContext* getContext() { return mContext; } |
| inline int32_t getId() const { return mId; } |
| inline int32_t getControllerNumber() const { return mControllerNumber; } |
| inline int32_t getGeneration() const { return mGeneration; } |
| inline const String8& getName() const { return mIdentifier.name; } |
| inline const String8& getDescriptor() { return mIdentifier.descriptor; } |
| inline uint32_t getClasses() const { return mClasses; } |
| inline uint32_t getSources() const { return mSources; } |
| |
| inline bool isExternal() { return mIsExternal; } |
| inline void setExternal(bool external) { mIsExternal = external; } |
| |
| inline void setMic(bool hasMic) { mHasMic = hasMic; } |
| inline bool hasMic() const { return mHasMic; } |
| |
| inline bool isIgnored() { return mMappers.isEmpty(); } |
| |
| bool isEnabled(); |
| void setEnabled(bool enabled, nsecs_t when); |
| |
| void dump(String8& dump); |
| void addMapper(InputMapper* mapper); |
| void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes); |
| void reset(nsecs_t when); |
| void process(const RawEvent* rawEvents, size_t count); |
| void timeoutExpired(nsecs_t when); |
| void updateExternalStylusState(const StylusState& state); |
| |
| void getDeviceInfo(InputDeviceInfo* outDeviceInfo); |
| int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode); |
| int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode); |
| int32_t getSwitchState(uint32_t sourceMask, int32_t switchCode); |
| bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, |
| const int32_t* keyCodes, uint8_t* outFlags); |
| void vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, int32_t token); |
| void cancelVibrate(int32_t token); |
| void cancelTouch(nsecs_t when); |
| |
| int32_t getMetaState(); |
| void updateMetaState(int32_t keyCode); |
| |
| void fadePointer(); |
| |
| void bumpGeneration(); |
| |
| void notifyReset(nsecs_t when); |
| |
| inline const PropertyMap& getConfiguration() { return mConfiguration; } |
| inline EventHubInterface* getEventHub() { return mContext->getEventHub(); } |
| |
| bool hasKey(int32_t code) { |
| return getEventHub()->hasScanCode(mId, code); |
| } |
| |
| bool hasAbsoluteAxis(int32_t code) { |
| RawAbsoluteAxisInfo info; |
| getEventHub()->getAbsoluteAxisInfo(mId, code, &info); |
| return info.valid; |
| } |
| |
| bool isKeyPressed(int32_t code) { |
| return getEventHub()->getScanCodeState(mId, code) == AKEY_STATE_DOWN; |
| } |
| |
| int32_t getAbsoluteAxisValue(int32_t code) { |
| int32_t value; |
| getEventHub()->getAbsoluteAxisValue(mId, code, &value); |
| return value; |
| } |
| |
| private: |
| InputReaderContext* mContext; |
| int32_t mId; |
| int32_t mGeneration; |
| int32_t mControllerNumber; |
| InputDeviceIdentifier mIdentifier; |
| String8 mAlias; |
| uint32_t mClasses; |
| |
| Vector<InputMapper*> mMappers; |
| |
| uint32_t mSources; |
| bool mIsExternal; |
| bool mHasMic; |
| bool mDropUntilNextSync; |
| |
| typedef int32_t (InputMapper::*GetStateFunc)(uint32_t sourceMask, int32_t code); |
| int32_t getState(uint32_t sourceMask, int32_t code, GetStateFunc getStateFunc); |
| |
| PropertyMap mConfiguration; |
| }; |
| |
| |
| /* Keeps track of the state of mouse or touch pad buttons. */ |
| class CursorButtonAccumulator { |
| public: |
| CursorButtonAccumulator(); |
| void reset(InputDevice* device); |
| |
| void process(const RawEvent* rawEvent); |
| |
| uint32_t getButtonState() const; |
| |
| private: |
| bool mBtnLeft; |
| bool mBtnRight; |
| bool mBtnMiddle; |
| bool mBtnBack; |
| bool mBtnSide; |
| bool mBtnForward; |
| bool mBtnExtra; |
| bool mBtnTask; |
| |
| void clearButtons(); |
| }; |
| |
| |
| /* Keeps track of cursor movements. */ |
| |
| class CursorMotionAccumulator { |
| public: |
| CursorMotionAccumulator(); |
| void reset(InputDevice* device); |
| |
| void process(const RawEvent* rawEvent); |
| void finishSync(); |
| |
| inline int32_t getRelativeX() const { return mRelX; } |
| inline int32_t getRelativeY() const { return mRelY; } |
| |
| private: |
| int32_t mRelX; |
| int32_t mRelY; |
| |
| void clearRelativeAxes(); |
| }; |
| |
| |
| /* Keeps track of cursor scrolling motions. */ |
| |
| class CursorScrollAccumulator { |
| public: |
| CursorScrollAccumulator(); |
| void configure(InputDevice* device); |
| void reset(InputDevice* device); |
| |
| void process(const RawEvent* rawEvent); |
| void finishSync(); |
| |
| inline bool haveRelativeVWheel() const { return mHaveRelWheel; } |
| inline bool haveRelativeHWheel() const { return mHaveRelHWheel; } |
| |
| inline int32_t getRelativeX() const { return mRelX; } |
| inline int32_t getRelativeY() const { return mRelY; } |
| inline int32_t getRelativeVWheel() const { return mRelWheel; } |
| inline int32_t getRelativeHWheel() const { return mRelHWheel; } |
| |
| private: |
| bool mHaveRelWheel; |
| bool mHaveRelHWheel; |
| |
| int32_t mRelX; |
| int32_t mRelY; |
| int32_t mRelWheel; |
| int32_t mRelHWheel; |
| |
| void clearRelativeAxes(); |
| }; |
| |
| |
| /* Keeps track of the state of touch, stylus and tool buttons. */ |
| class TouchButtonAccumulator { |
| public: |
| TouchButtonAccumulator(); |
| void configure(InputDevice* device); |
| void reset(InputDevice* device); |
| |
| void process(const RawEvent* rawEvent); |
| |
| uint32_t getButtonState() const; |
| int32_t getToolType() const; |
| bool isToolActive() const; |
| bool isHovering() const; |
| bool hasStylus() const; |
| |
| private: |
| bool mHaveBtnTouch; |
| bool mHaveStylus; |
| |
| bool mBtnTouch; |
| bool mBtnStylus; |
| bool mBtnStylus2; |
| bool mBtnToolFinger; |
| bool mBtnToolPen; |
| bool mBtnToolRubber; |
| bool mBtnToolBrush; |
| bool mBtnToolPencil; |
| bool mBtnToolAirbrush; |
| bool mBtnToolMouse; |
| bool mBtnToolLens; |
| bool mBtnToolDoubleTap; |
| bool mBtnToolTripleTap; |
| bool mBtnToolQuadTap; |
| |
| void clearButtons(); |
| }; |
| |
| |
| /* Raw axis information from the driver. */ |
| struct RawPointerAxes { |
| RawAbsoluteAxisInfo x; |
| RawAbsoluteAxisInfo y; |
| RawAbsoluteAxisInfo pressure; |
| RawAbsoluteAxisInfo touchMajor; |
| RawAbsoluteAxisInfo touchMinor; |
| RawAbsoluteAxisInfo toolMajor; |
| RawAbsoluteAxisInfo toolMinor; |
| RawAbsoluteAxisInfo orientation; |
| RawAbsoluteAxisInfo distance; |
| RawAbsoluteAxisInfo tiltX; |
| RawAbsoluteAxisInfo tiltY; |
| RawAbsoluteAxisInfo trackingId; |
| RawAbsoluteAxisInfo slot; |
| |
| RawPointerAxes(); |
| void clear(); |
| }; |
| |
| |
| /* Raw data for a collection of pointers including a pointer id mapping table. */ |
| struct RawPointerData { |
| struct Pointer { |
| uint32_t id; |
| int32_t x; |
| int32_t y; |
| int32_t pressure; |
| int32_t touchMajor; |
| int32_t touchMinor; |
| int32_t toolMajor; |
| int32_t toolMinor; |
| int32_t orientation; |
| int32_t distance; |
| int32_t tiltX; |
| int32_t tiltY; |
| int32_t toolType; // a fully decoded AMOTION_EVENT_TOOL_TYPE constant |
| bool isHovering; |
| }; |
| |
| uint32_t pointerCount; |
| Pointer pointers[MAX_POINTERS]; |
| BitSet32 hoveringIdBits, touchingIdBits; |
| uint32_t idToIndex[MAX_POINTER_ID + 1]; |
| |
| RawPointerData(); |
| void clear(); |
| void copyFrom(const RawPointerData& other); |
| void getCentroidOfTouchingPointers(float* outX, float* outY) const; |
| |
| inline void markIdBit(uint32_t id, bool isHovering) { |
| if (isHovering) { |
| hoveringIdBits.markBit(id); |
| } else { |
| touchingIdBits.markBit(id); |
| } |
| } |
| |
| inline void clearIdBits() { |
| hoveringIdBits.clear(); |
| touchingIdBits.clear(); |
| } |
| |
| inline const Pointer& pointerForId(uint32_t id) const { |
| return pointers[idToIndex[id]]; |
| } |
| |
| inline bool isHovering(uint32_t pointerIndex) { |
| return pointers[pointerIndex].isHovering; |
| } |
| }; |
| |
| |
| /* Cooked data for a collection of pointers including a pointer id mapping table. */ |
| struct CookedPointerData { |
| uint32_t pointerCount; |
| PointerProperties pointerProperties[MAX_POINTERS]; |
| PointerCoords pointerCoords[MAX_POINTERS]; |
| BitSet32 hoveringIdBits, touchingIdBits; |
| uint32_t idToIndex[MAX_POINTER_ID + 1]; |
| |
| CookedPointerData(); |
| void clear(); |
| void copyFrom(const CookedPointerData& other); |
| |
| inline const PointerCoords& pointerCoordsForId(uint32_t id) const { |
| return pointerCoords[idToIndex[id]]; |
| } |
| |
| inline PointerCoords& editPointerCoordsWithId(uint32_t id) { |
| return pointerCoords[idToIndex[id]]; |
| } |
| |
| inline PointerProperties& editPointerPropertiesWithId(uint32_t id) { |
| return pointerProperties[idToIndex[id]]; |
| } |
| |
| inline bool isHovering(uint32_t pointerIndex) const { |
| return hoveringIdBits.hasBit(pointerProperties[pointerIndex].id); |
| } |
| |
| inline bool isTouching(uint32_t pointerIndex) const { |
| return touchingIdBits.hasBit(pointerProperties[pointerIndex].id); |
| } |
| }; |
| |
| |
| /* Keeps track of the state of single-touch protocol. */ |
| class SingleTouchMotionAccumulator { |
| public: |
| SingleTouchMotionAccumulator(); |
| |
| void process(const RawEvent* rawEvent); |
| void reset(InputDevice* device); |
| |
| inline int32_t getAbsoluteX() const { return mAbsX; } |
| inline int32_t getAbsoluteY() const { return mAbsY; } |
| inline int32_t getAbsolutePressure() const { return mAbsPressure; } |
| inline int32_t getAbsoluteToolWidth() const { return mAbsToolWidth; } |
| inline int32_t getAbsoluteDistance() const { return mAbsDistance; } |
| inline int32_t getAbsoluteTiltX() const { return mAbsTiltX; } |
| inline int32_t getAbsoluteTiltY() const { return mAbsTiltY; } |
| |
| private: |
| int32_t mAbsX; |
| int32_t mAbsY; |
| int32_t mAbsPressure; |
| int32_t mAbsToolWidth; |
| int32_t mAbsDistance; |
| int32_t mAbsTiltX; |
| int32_t mAbsTiltY; |
| |
| void clearAbsoluteAxes(); |
| }; |
| |
| |
| /* Keeps track of the state of multi-touch protocol. */ |
| class MultiTouchMotionAccumulator { |
| public: |
| class Slot { |
| public: |
| inline bool isInUse() const { return mInUse; } |
| inline int32_t getX() const { return mAbsMTPositionX; } |
| inline int32_t getY() const { return mAbsMTPositionY; } |
| inline int32_t getTouchMajor() const { return mAbsMTTouchMajor; } |
| inline int32_t getTouchMinor() const { |
| return mHaveAbsMTTouchMinor ? mAbsMTTouchMinor : mAbsMTTouchMajor; } |
| inline int32_t getToolMajor() const { return mAbsMTWidthMajor; } |
| inline int32_t getToolMinor() const { |
| return mHaveAbsMTWidthMinor ? mAbsMTWidthMinor : mAbsMTWidthMajor; } |
| inline int32_t getOrientation() const { return mAbsMTOrientation; } |
| inline int32_t getTrackingId() const { return mAbsMTTrackingId; } |
| inline int32_t getPressure() const { return mAbsMTPressure; } |
| inline int32_t getDistance() const { return mAbsMTDistance; } |
| inline int32_t getToolType() const; |
| |
| private: |
| friend class MultiTouchMotionAccumulator; |
| |
| bool mInUse; |
| bool mHaveAbsMTTouchMinor; |
| bool mHaveAbsMTWidthMinor; |
| bool mHaveAbsMTToolType; |
| |
| int32_t mAbsMTPositionX; |
| int32_t mAbsMTPositionY; |
| int32_t mAbsMTTouchMajor; |
| int32_t mAbsMTTouchMinor; |
| int32_t mAbsMTWidthMajor; |
| int32_t mAbsMTWidthMinor; |
| int32_t mAbsMTOrientation; |
| int32_t mAbsMTTrackingId; |
| int32_t mAbsMTPressure; |
| int32_t mAbsMTDistance; |
| int32_t mAbsMTToolType; |
| |
| Slot(); |
| void clear(); |
| }; |
| |
| MultiTouchMotionAccumulator(); |
| ~MultiTouchMotionAccumulator(); |
| |
| void configure(InputDevice* device, size_t slotCount, bool usingSlotsProtocol); |
| void reset(InputDevice* device); |
| void process(const RawEvent* rawEvent); |
| void finishSync(); |
| bool hasStylus() const; |
| |
| inline size_t getSlotCount() const { return mSlotCount; } |
| inline const Slot* getSlot(size_t index) const { return &mSlots[index]; } |
| |
| private: |
| int32_t mCurrentSlot; |
| Slot* mSlots; |
| size_t mSlotCount; |
| bool mUsingSlotsProtocol; |
| bool mHaveStylus; |
| |
| void clearSlots(int32_t initialSlot); |
| }; |
| |
| |
| /* An input mapper transforms raw input events into cooked event data. |
| * A single input device can have multiple associated input mappers in order to interpret |
| * different classes of events. |
| * |
| * InputMapper lifecycle: |
| * - create |
| * - configure with 0 changes |
| * - reset |
| * - process, process, process (may occasionally reconfigure with non-zero changes or reset) |
| * - reset |
| * - destroy |
| */ |
| class InputMapper { |
| public: |
| explicit InputMapper(InputDevice* device); |
| virtual ~InputMapper(); |
| |
| inline InputDevice* getDevice() { return mDevice; } |
| inline int32_t getDeviceId() { return mDevice->getId(); } |
| inline const String8 getDeviceName() { return mDevice->getName(); } |
| inline InputReaderContext* getContext() { return mContext; } |
| inline InputReaderPolicyInterface* getPolicy() { return mContext->getPolicy(); } |
| inline InputListenerInterface* getListener() { return mContext->getListener(); } |
| inline EventHubInterface* getEventHub() { return mContext->getEventHub(); } |
| |
| virtual uint32_t getSources() = 0; |
| virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo); |
| virtual void dump(String8& dump); |
| virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes); |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent) = 0; |
| virtual void timeoutExpired(nsecs_t when); |
| |
| virtual int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode); |
| virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode); |
| virtual int32_t getSwitchState(uint32_t sourceMask, int32_t switchCode); |
| virtual bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, |
| const int32_t* keyCodes, uint8_t* outFlags); |
| virtual void vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, |
| int32_t token); |
| virtual void cancelVibrate(int32_t token); |
| virtual void cancelTouch(nsecs_t when); |
| |
| virtual int32_t getMetaState(); |
| virtual void updateMetaState(int32_t keyCode); |
| |
| virtual void updateExternalStylusState(const StylusState& state); |
| |
| virtual void fadePointer(); |
| |
| protected: |
| InputDevice* mDevice; |
| InputReaderContext* mContext; |
| |
| status_t getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo); |
| void bumpGeneration(); |
| |
| static void dumpRawAbsoluteAxisInfo(String8& dump, |
| const RawAbsoluteAxisInfo& axis, const char* name); |
| static void dumpStylusState(String8& dump, const StylusState& state); |
| }; |
| |
| |
| class SwitchInputMapper : public InputMapper { |
| public: |
| explicit SwitchInputMapper(InputDevice* device); |
| virtual ~SwitchInputMapper(); |
| |
| virtual uint32_t getSources(); |
| virtual void process(const RawEvent* rawEvent); |
| |
| virtual int32_t getSwitchState(uint32_t sourceMask, int32_t switchCode); |
| virtual void dump(String8& dump); |
| |
| private: |
| uint32_t mSwitchValues; |
| uint32_t mUpdatedSwitchMask; |
| |
| void processSwitch(int32_t switchCode, int32_t switchValue); |
| void sync(nsecs_t when); |
| }; |
| |
| |
| class VibratorInputMapper : public InputMapper { |
| public: |
| explicit VibratorInputMapper(InputDevice* device); |
| virtual ~VibratorInputMapper(); |
| |
| virtual uint32_t getSources(); |
| virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo); |
| virtual void process(const RawEvent* rawEvent); |
| |
| virtual void vibrate(const nsecs_t* pattern, size_t patternSize, ssize_t repeat, |
| int32_t token); |
| virtual void cancelVibrate(int32_t token); |
| virtual void timeoutExpired(nsecs_t when); |
| virtual void dump(String8& dump); |
| |
| private: |
| bool mVibrating; |
| nsecs_t mPattern[MAX_VIBRATE_PATTERN_SIZE]; |
| size_t mPatternSize; |
| ssize_t mRepeat; |
| int32_t mToken; |
| ssize_t mIndex; |
| nsecs_t mNextStepTime; |
| |
| void nextStep(); |
| void stopVibrating(); |
| }; |
| |
| |
| class KeyboardInputMapper : public InputMapper { |
| public: |
| KeyboardInputMapper(InputDevice* device, uint32_t source, int32_t keyboardType); |
| virtual ~KeyboardInputMapper(); |
| |
| virtual uint32_t getSources(); |
| virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo); |
| virtual void dump(String8& dump); |
| virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes); |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent); |
| |
| virtual int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode); |
| virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode); |
| virtual bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, |
| const int32_t* keyCodes, uint8_t* outFlags); |
| |
| virtual int32_t getMetaState(); |
| virtual void updateMetaState(int32_t keyCode); |
| |
| private: |
| struct KeyDown { |
| int32_t keyCode; |
| int32_t scanCode; |
| }; |
| |
| uint32_t mSource; |
| int32_t mKeyboardType; |
| |
| int32_t mOrientation; // orientation for dpad keys |
| |
| Vector<KeyDown> mKeyDowns; // keys that are down |
| int32_t mMetaState; |
| nsecs_t mDownTime; // time of most recent key down |
| |
| int32_t mCurrentHidUsage; // most recent HID usage seen this packet, or 0 if none |
| |
| struct LedState { |
| bool avail; // led is available |
| bool on; // we think the led is currently on |
| }; |
| LedState mCapsLockLedState; |
| LedState mNumLockLedState; |
| LedState mScrollLockLedState; |
| |
| // Immutable configuration parameters. |
| struct Parameters { |
| bool hasAssociatedDisplay; |
| bool orientationAware; |
| bool handlesKeyRepeat; |
| } mParameters; |
| |
| void configureParameters(); |
| void dumpParameters(String8& dump); |
| |
| bool isKeyboardOrGamepadKey(int32_t scanCode); |
| bool isMediaKey(int32_t keyCode); |
| |
| void processKey(nsecs_t when, bool down, int32_t scanCode, int32_t usageCode); |
| |
| bool updateMetaStateIfNeeded(int32_t keyCode, bool down); |
| |
| ssize_t findKeyDown(int32_t scanCode); |
| |
| void resetLedState(); |
| void initializeLedState(LedState& ledState, int32_t led); |
| void updateLedState(bool reset); |
| void updateLedStateForModifier(LedState& ledState, int32_t led, |
| int32_t modifier, bool reset); |
| }; |
| |
| |
| class CursorInputMapper : public InputMapper { |
| public: |
| explicit CursorInputMapper(InputDevice* device); |
| virtual ~CursorInputMapper(); |
| |
| virtual uint32_t getSources(); |
| virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo); |
| virtual void dump(String8& dump); |
| virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes); |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent); |
| |
| virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode); |
| |
| virtual void fadePointer(); |
| |
| private: |
| // Amount that trackball needs to move in order to generate a key event. |
| static const int32_t TRACKBALL_MOVEMENT_THRESHOLD = 6; |
| |
| // Immutable configuration parameters. |
| struct Parameters { |
| enum Mode { |
| MODE_POINTER, |
| MODE_POINTER_RELATIVE, |
| MODE_NAVIGATION, |
| }; |
| |
| Mode mode; |
| bool hasAssociatedDisplay; |
| bool orientationAware; |
| } mParameters; |
| |
| CursorButtonAccumulator mCursorButtonAccumulator; |
| CursorMotionAccumulator mCursorMotionAccumulator; |
| CursorScrollAccumulator mCursorScrollAccumulator; |
| |
| int32_t mSource; |
| float mXScale; |
| float mYScale; |
| float mXPrecision; |
| float mYPrecision; |
| |
| float mVWheelScale; |
| float mHWheelScale; |
| |
| // Velocity controls for mouse pointer and wheel movements. |
| // The controls for X and Y wheel movements are separate to keep them decoupled. |
| VelocityControl mPointerVelocityControl; |
| VelocityControl mWheelXVelocityControl; |
| VelocityControl mWheelYVelocityControl; |
| |
| int32_t mOrientation; |
| |
| sp<PointerControllerInterface> mPointerController; |
| |
| int32_t mButtonState; |
| nsecs_t mDownTime; |
| |
| void configureParameters(); |
| void dumpParameters(String8& dump); |
| |
| void sync(nsecs_t when); |
| }; |
| |
| |
| class RotaryEncoderInputMapper : public InputMapper { |
| public: |
| explicit RotaryEncoderInputMapper(InputDevice* device); |
| virtual ~RotaryEncoderInputMapper(); |
| |
| virtual uint32_t getSources(); |
| virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo); |
| virtual void dump(String8& dump); |
| virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes); |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent); |
| |
| private: |
| CursorScrollAccumulator mRotaryEncoderScrollAccumulator; |
| |
| int32_t mSource; |
| float mScalingFactor; |
| int32_t mOrientation; |
| |
| void sync(nsecs_t when); |
| }; |
| |
| class TouchInputMapper : public InputMapper { |
| public: |
| explicit TouchInputMapper(InputDevice* device); |
| virtual ~TouchInputMapper(); |
| |
| virtual uint32_t getSources(); |
| virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo); |
| virtual void dump(String8& dump); |
| virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes); |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent); |
| |
| virtual int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode); |
| virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode); |
| virtual bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, |
| const int32_t* keyCodes, uint8_t* outFlags); |
| |
| virtual void fadePointer(); |
| virtual void cancelTouch(nsecs_t when); |
| virtual void timeoutExpired(nsecs_t when); |
| virtual void updateExternalStylusState(const StylusState& state); |
| |
| protected: |
| CursorButtonAccumulator mCursorButtonAccumulator; |
| CursorScrollAccumulator mCursorScrollAccumulator; |
| TouchButtonAccumulator mTouchButtonAccumulator; |
| |
| struct VirtualKey { |
| int32_t keyCode; |
| int32_t scanCode; |
| uint32_t flags; |
| |
| // computed hit box, specified in touch screen coords based on known display size |
| int32_t hitLeft; |
| int32_t hitTop; |
| int32_t hitRight; |
| int32_t hitBottom; |
| |
| inline bool isHit(int32_t x, int32_t y) const { |
| return x >= hitLeft && x <= hitRight && y >= hitTop && y <= hitBottom; |
| } |
| }; |
| |
| // Input sources and device mode. |
| uint32_t mSource; |
| |
| enum DeviceMode { |
| DEVICE_MODE_DISABLED, // input is disabled |
| DEVICE_MODE_DIRECT, // direct mapping (touchscreen) |
| DEVICE_MODE_UNSCALED, // unscaled mapping (touchpad) |
| DEVICE_MODE_NAVIGATION, // unscaled mapping with assist gesture (touch navigation) |
| DEVICE_MODE_POINTER, // pointer mapping (pointer) |
| }; |
| DeviceMode mDeviceMode; |
| |
| // The reader's configuration. |
| InputReaderConfiguration mConfig; |
| |
| // Immutable configuration parameters. |
| struct Parameters { |
| enum DeviceType { |
| DEVICE_TYPE_TOUCH_SCREEN, |
| DEVICE_TYPE_TOUCH_PAD, |
| DEVICE_TYPE_TOUCH_NAVIGATION, |
| DEVICE_TYPE_POINTER, |
| }; |
| |
| DeviceType deviceType; |
| bool hasAssociatedDisplay; |
| bool associatedDisplayIsExternal; |
| bool orientationAware; |
| bool hasButtonUnderPad; |
| String8 uniqueDisplayId; |
| |
| enum GestureMode { |
| GESTURE_MODE_SINGLE_TOUCH, |
| GESTURE_MODE_MULTI_TOUCH, |
| }; |
| GestureMode gestureMode; |
| |
| bool wake; |
| } mParameters; |
| |
| // Immutable calibration parameters in parsed form. |
| struct Calibration { |
| // Size |
| enum SizeCalibration { |
| SIZE_CALIBRATION_DEFAULT, |
| SIZE_CALIBRATION_NONE, |
| SIZE_CALIBRATION_GEOMETRIC, |
| SIZE_CALIBRATION_DIAMETER, |
| SIZE_CALIBRATION_BOX, |
| SIZE_CALIBRATION_AREA, |
| }; |
| |
| SizeCalibration sizeCalibration; |
| |
| bool haveSizeScale; |
| float sizeScale; |
| bool haveSizeBias; |
| float sizeBias; |
| bool haveSizeIsSummed; |
| bool sizeIsSummed; |
| |
| // Pressure |
| enum PressureCalibration { |
| PRESSURE_CALIBRATION_DEFAULT, |
| PRESSURE_CALIBRATION_NONE, |
| PRESSURE_CALIBRATION_PHYSICAL, |
| PRESSURE_CALIBRATION_AMPLITUDE, |
| }; |
| |
| PressureCalibration pressureCalibration; |
| bool havePressureScale; |
| float pressureScale; |
| |
| // Orientation |
| enum OrientationCalibration { |
| ORIENTATION_CALIBRATION_DEFAULT, |
| ORIENTATION_CALIBRATION_NONE, |
| ORIENTATION_CALIBRATION_INTERPOLATED, |
| ORIENTATION_CALIBRATION_VECTOR, |
| }; |
| |
| OrientationCalibration orientationCalibration; |
| |
| // Distance |
| enum DistanceCalibration { |
| DISTANCE_CALIBRATION_DEFAULT, |
| DISTANCE_CALIBRATION_NONE, |
| DISTANCE_CALIBRATION_SCALED, |
| }; |
| |
| DistanceCalibration distanceCalibration; |
| bool haveDistanceScale; |
| float distanceScale; |
| |
| enum CoverageCalibration { |
| COVERAGE_CALIBRATION_DEFAULT, |
| COVERAGE_CALIBRATION_NONE, |
| COVERAGE_CALIBRATION_BOX, |
| }; |
| |
| CoverageCalibration coverageCalibration; |
| |
| inline void applySizeScaleAndBias(float* outSize) const { |
| if (haveSizeScale) { |
| *outSize *= sizeScale; |
| } |
| if (haveSizeBias) { |
| *outSize += sizeBias; |
| } |
| if (*outSize < 0) { |
| *outSize = 0; |
| } |
| } |
| } mCalibration; |
| |
| // Affine location transformation/calibration |
| struct TouchAffineTransformation mAffineTransform; |
| |
| RawPointerAxes mRawPointerAxes; |
| |
| struct RawState { |
| nsecs_t when; |
| |
| // Raw pointer sample data. |
| RawPointerData rawPointerData; |
| |
| int32_t buttonState; |
| |
| // Scroll state. |
| int32_t rawVScroll; |
| int32_t rawHScroll; |
| |
| void copyFrom(const RawState& other) { |
| when = other.when; |
| rawPointerData.copyFrom(other.rawPointerData); |
| buttonState = other.buttonState; |
| rawVScroll = other.rawVScroll; |
| rawHScroll = other.rawHScroll; |
| } |
| |
| void clear() { |
| when = 0; |
| rawPointerData.clear(); |
| buttonState = 0; |
| rawVScroll = 0; |
| rawHScroll = 0; |
| } |
| }; |
| |
| struct CookedState { |
| // Cooked pointer sample data. |
| CookedPointerData cookedPointerData; |
| |
| // Id bits used to differentiate fingers, stylus and mouse tools. |
| BitSet32 fingerIdBits; |
| BitSet32 stylusIdBits; |
| BitSet32 mouseIdBits; |
| |
| int32_t buttonState; |
| |
| void copyFrom(const CookedState& other) { |
| cookedPointerData.copyFrom(other.cookedPointerData); |
| fingerIdBits = other.fingerIdBits; |
| stylusIdBits = other.stylusIdBits; |
| mouseIdBits = other.mouseIdBits; |
| buttonState = other.buttonState; |
| } |
| |
| void clear() { |
| cookedPointerData.clear(); |
| fingerIdBits.clear(); |
| stylusIdBits.clear(); |
| mouseIdBits.clear(); |
| buttonState = 0; |
| } |
| }; |
| |
| Vector<RawState> mRawStatesPending; |
| RawState mCurrentRawState; |
| CookedState mCurrentCookedState; |
| RawState mLastRawState; |
| CookedState mLastCookedState; |
| |
| // State provided by an external stylus |
| StylusState mExternalStylusState; |
| int64_t mExternalStylusId; |
| nsecs_t mExternalStylusFusionTimeout; |
| bool mExternalStylusDataPending; |
| |
| // True if we sent a HOVER_ENTER event. |
| bool mSentHoverEnter; |
| |
| // Have we assigned pointer IDs for this stream |
| bool mHavePointerIds; |
| |
| // Is the current stream of direct touch events aborted |
| bool mCurrentMotionAborted; |
| |
| // The time the primary pointer last went down. |
| nsecs_t mDownTime; |
| |
| // The pointer controller, or null if the device is not a pointer. |
| sp<PointerControllerInterface> mPointerController; |
| |
| Vector<VirtualKey> mVirtualKeys; |
| |
| virtual void configureParameters(); |
| virtual void dumpParameters(String8& dump); |
| virtual void configureRawPointerAxes(); |
| virtual void dumpRawPointerAxes(String8& dump); |
| virtual void configureSurface(nsecs_t when, bool* outResetNeeded); |
| virtual void dumpSurface(String8& dump); |
| virtual void configureVirtualKeys(); |
| virtual void dumpVirtualKeys(String8& dump); |
| virtual void parseCalibration(); |
| virtual void resolveCalibration(); |
| virtual void dumpCalibration(String8& dump); |
| virtual void updateAffineTransformation(); |
| virtual void dumpAffineTransformation(String8& dump); |
| virtual void resolveExternalStylusPresence(); |
| virtual bool hasStylus() const = 0; |
| virtual bool hasExternalStylus() const; |
| |
| virtual void syncTouch(nsecs_t when, RawState* outState) = 0; |
| |
| private: |
| // The current viewport. |
| // The components of the viewport are specified in the display's rotated orientation. |
| DisplayViewport mViewport; |
| |
| // The surface orientation, width and height set by configureSurface(). |
| // The width and height are derived from the viewport but are specified |
| // in the natural orientation. |
| // The surface origin specifies how the surface coordinates should be translated |
| // to align with the logical display coordinate space. |
| // The orientation may be different from the viewport orientation as it specifies |
| // the rotation of the surface coordinates required to produce the viewport's |
| // requested orientation, so it will depend on whether the device is orientation aware. |
| int32_t mSurfaceWidth; |
| int32_t mSurfaceHeight; |
| int32_t mSurfaceLeft; |
| int32_t mSurfaceTop; |
| int32_t mSurfaceOrientation; |
| |
| // Translation and scaling factors, orientation-independent. |
| float mXTranslate; |
| float mXScale; |
| float mXPrecision; |
| |
| float mYTranslate; |
| float mYScale; |
| float mYPrecision; |
| |
| float mGeometricScale; |
| |
| float mPressureScale; |
| |
| float mSizeScale; |
| |
| float mOrientationScale; |
| |
| float mDistanceScale; |
| |
| bool mHaveTilt; |
| float mTiltXCenter; |
| float mTiltXScale; |
| float mTiltYCenter; |
| float mTiltYScale; |
| |
| bool mExternalStylusConnected; |
| |
| // Oriented motion ranges for input device info. |
| struct OrientedRanges { |
| InputDeviceInfo::MotionRange x; |
| InputDeviceInfo::MotionRange y; |
| InputDeviceInfo::MotionRange pressure; |
| |
| bool haveSize; |
| InputDeviceInfo::MotionRange size; |
| |
| bool haveTouchSize; |
| InputDeviceInfo::MotionRange touchMajor; |
| InputDeviceInfo::MotionRange touchMinor; |
| |
| bool haveToolSize; |
| InputDeviceInfo::MotionRange toolMajor; |
| InputDeviceInfo::MotionRange toolMinor; |
| |
| bool haveOrientation; |
| InputDeviceInfo::MotionRange orientation; |
| |
| bool haveDistance; |
| InputDeviceInfo::MotionRange distance; |
| |
| bool haveTilt; |
| InputDeviceInfo::MotionRange tilt; |
| |
| OrientedRanges() { |
| clear(); |
| } |
| |
| void clear() { |
| haveSize = false; |
| haveTouchSize = false; |
| haveToolSize = false; |
| haveOrientation = false; |
| haveDistance = false; |
| haveTilt = false; |
| } |
| } mOrientedRanges; |
| |
| // Oriented dimensions and precision. |
| float mOrientedXPrecision; |
| float mOrientedYPrecision; |
| |
| struct CurrentVirtualKeyState { |
| bool down; |
| bool ignored; |
| nsecs_t downTime; |
| int32_t keyCode; |
| int32_t scanCode; |
| } mCurrentVirtualKey; |
| |
| // Scale factor for gesture or mouse based pointer movements. |
| float mPointerXMovementScale; |
| float mPointerYMovementScale; |
| |
| // Scale factor for gesture based zooming and other freeform motions. |
| float mPointerXZoomScale; |
| float mPointerYZoomScale; |
| |
| // The maximum swipe width. |
| float mPointerGestureMaxSwipeWidth; |
| |
| struct PointerDistanceHeapElement { |
| uint32_t currentPointerIndex : 8; |
| uint32_t lastPointerIndex : 8; |
| uint64_t distance : 48; // squared distance |
| }; |
| |
| enum PointerUsage { |
| POINTER_USAGE_NONE, |
| POINTER_USAGE_GESTURES, |
| POINTER_USAGE_STYLUS, |
| POINTER_USAGE_MOUSE, |
| }; |
| PointerUsage mPointerUsage; |
| |
| struct PointerGesture { |
| enum Mode { |
| // No fingers, button is not pressed. |
| // Nothing happening. |
| NEUTRAL, |
| |
| // No fingers, button is not pressed. |
| // Tap detected. |
| // Emits DOWN and UP events at the pointer location. |
| TAP, |
| |
| // Exactly one finger dragging following a tap. |
| // Pointer follows the active finger. |
| // Emits DOWN, MOVE and UP events at the pointer location. |
| // |
| // Detect double-taps when the finger goes up while in TAP_DRAG mode. |
| TAP_DRAG, |
| |
| // Button is pressed. |
| // Pointer follows the active finger if there is one. Other fingers are ignored. |
| // Emits DOWN, MOVE and UP events at the pointer location. |
| BUTTON_CLICK_OR_DRAG, |
| |
| // Exactly one finger, button is not pressed. |
| // Pointer follows the active finger. |
| // Emits HOVER_MOVE events at the pointer location. |
| // |
| // Detect taps when the finger goes up while in HOVER mode. |
| HOVER, |
| |
| // Exactly two fingers but neither have moved enough to clearly indicate |
| // whether a swipe or freeform gesture was intended. We consider the |
| // pointer to be pressed so this enables clicking or long-pressing on buttons. |
| // Pointer does not move. |
| // Emits DOWN, MOVE and UP events with a single stationary pointer coordinate. |
| PRESS, |
| |
| // Exactly two fingers moving in the same direction, button is not pressed. |
| // Pointer does not move. |
| // Emits DOWN, MOVE and UP events with a single pointer coordinate that |
| // follows the midpoint between both fingers. |
| SWIPE, |
| |
| // Two or more fingers moving in arbitrary directions, button is not pressed. |
| // Pointer does not move. |
| // Emits DOWN, POINTER_DOWN, MOVE, POINTER_UP and UP events that follow |
| // each finger individually relative to the initial centroid of the finger. |
| FREEFORM, |
| |
| // Waiting for quiet time to end before starting the next gesture. |
| QUIET, |
| }; |
| |
| // Time the first finger went down. |
| nsecs_t firstTouchTime; |
| |
| // The active pointer id from the raw touch data. |
| int32_t activeTouchId; // -1 if none |
| |
| // The active pointer id from the gesture last delivered to the application. |
| int32_t activeGestureId; // -1 if none |
| |
| // Pointer coords and ids for the current and previous pointer gesture. |
| Mode currentGestureMode; |
| BitSet32 currentGestureIdBits; |
| uint32_t currentGestureIdToIndex[MAX_POINTER_ID + 1]; |
| PointerProperties currentGestureProperties[MAX_POINTERS]; |
| PointerCoords currentGestureCoords[MAX_POINTERS]; |
| |
| Mode lastGestureMode; |
| BitSet32 lastGestureIdBits; |
| uint32_t lastGestureIdToIndex[MAX_POINTER_ID + 1]; |
| PointerProperties lastGestureProperties[MAX_POINTERS]; |
| PointerCoords lastGestureCoords[MAX_POINTERS]; |
| |
| // Time the pointer gesture last went down. |
| nsecs_t downTime; |
| |
| // Time when the pointer went down for a TAP. |
| nsecs_t tapDownTime; |
| |
| // Time when the pointer went up for a TAP. |
| nsecs_t tapUpTime; |
| |
| // Location of initial tap. |
| float tapX, tapY; |
| |
| // Time we started waiting for quiescence. |
| nsecs_t quietTime; |
| |
| // Reference points for multitouch gestures. |
| float referenceTouchX; // reference touch X/Y coordinates in surface units |
| float referenceTouchY; |
| float referenceGestureX; // reference gesture X/Y coordinates in pixels |
| float referenceGestureY; |
| |
| // Distance that each pointer has traveled which has not yet been |
| // subsumed into the reference gesture position. |
| BitSet32 referenceIdBits; |
| struct Delta { |
| float dx, dy; |
| }; |
| Delta referenceDeltas[MAX_POINTER_ID + 1]; |
| |
| // Describes how touch ids are mapped to gesture ids for freeform gestures. |
| uint32_t freeformTouchToGestureIdMap[MAX_POINTER_ID + 1]; |
| |
| // A velocity tracker for determining whether to switch active pointers during drags. |
| VelocityTracker velocityTracker; |
| |
| void reset() { |
| firstTouchTime = LLONG_MIN; |
| activeTouchId = -1; |
| activeGestureId = -1; |
| currentGestureMode = NEUTRAL; |
| currentGestureIdBits.clear(); |
| lastGestureMode = NEUTRAL; |
| lastGestureIdBits.clear(); |
| downTime = 0; |
| velocityTracker.clear(); |
| resetTap(); |
| resetQuietTime(); |
| } |
| |
| void resetTap() { |
| tapDownTime = LLONG_MIN; |
| tapUpTime = LLONG_MIN; |
| } |
| |
| void resetQuietTime() { |
| quietTime = LLONG_MIN; |
| } |
| } mPointerGesture; |
| |
| struct PointerSimple { |
| PointerCoords currentCoords; |
| PointerProperties currentProperties; |
| PointerCoords lastCoords; |
| PointerProperties lastProperties; |
| |
| // True if the pointer is down. |
| bool down; |
| |
| // True if the pointer is hovering. |
| bool hovering; |
| |
| // Time the pointer last went down. |
| nsecs_t downTime; |
| |
| void reset() { |
| currentCoords.clear(); |
| currentProperties.clear(); |
| lastCoords.clear(); |
| lastProperties.clear(); |
| down = false; |
| hovering = false; |
| downTime = 0; |
| } |
| } mPointerSimple; |
| |
| // The pointer and scroll velocity controls. |
| VelocityControl mPointerVelocityControl; |
| VelocityControl mWheelXVelocityControl; |
| VelocityControl mWheelYVelocityControl; |
| |
| void resetExternalStylus(); |
| void clearStylusDataPendingFlags(); |
| |
| void sync(nsecs_t when); |
| |
| bool consumeRawTouches(nsecs_t when, uint32_t policyFlags); |
| void processRawTouches(bool timeout); |
| void cookAndDispatch(nsecs_t when); |
| void dispatchVirtualKey(nsecs_t when, uint32_t policyFlags, |
| int32_t keyEventAction, int32_t keyEventFlags); |
| |
| void dispatchTouches(nsecs_t when, uint32_t policyFlags); |
| void dispatchHoverExit(nsecs_t when, uint32_t policyFlags); |
| void dispatchHoverEnterAndMove(nsecs_t when, uint32_t policyFlags); |
| void dispatchButtonRelease(nsecs_t when, uint32_t policyFlags); |
| void dispatchButtonPress(nsecs_t when, uint32_t policyFlags); |
| const BitSet32& findActiveIdBits(const CookedPointerData& cookedPointerData); |
| void cookPointerData(); |
| void abortTouches(nsecs_t when, uint32_t policyFlags); |
| |
| void dispatchPointerUsage(nsecs_t when, uint32_t policyFlags, PointerUsage pointerUsage); |
| void abortPointerUsage(nsecs_t when, uint32_t policyFlags); |
| |
| void dispatchPointerGestures(nsecs_t when, uint32_t policyFlags, bool isTimeout); |
| void abortPointerGestures(nsecs_t when, uint32_t policyFlags); |
| bool preparePointerGestures(nsecs_t when, |
| bool* outCancelPreviousGesture, bool* outFinishPreviousGesture, |
| bool isTimeout); |
| |
| void dispatchPointerStylus(nsecs_t when, uint32_t policyFlags); |
| void abortPointerStylus(nsecs_t when, uint32_t policyFlags); |
| |
| void dispatchPointerMouse(nsecs_t when, uint32_t policyFlags); |
| void abortPointerMouse(nsecs_t when, uint32_t policyFlags); |
| |
| void dispatchPointerSimple(nsecs_t when, uint32_t policyFlags, |
| bool down, bool hovering); |
| void abortPointerSimple(nsecs_t when, uint32_t policyFlags); |
| |
| bool assignExternalStylusId(const RawState& state, bool timeout); |
| void applyExternalStylusButtonState(nsecs_t when); |
| void applyExternalStylusTouchState(nsecs_t when); |
| |
| // Dispatches a motion event. |
| // If the changedId is >= 0 and the action is POINTER_DOWN or POINTER_UP, the |
| // method will take care of setting the index and transmuting the action to DOWN or UP |
| // it is the first / last pointer to go down / up. |
| void dispatchMotion(nsecs_t when, uint32_t policyFlags, uint32_t source, |
| int32_t action, int32_t actionButton, |
| int32_t flags, int32_t metaState, int32_t buttonState, int32_t edgeFlags, |
| const PointerProperties* properties, const PointerCoords* coords, |
| const uint32_t* idToIndex, BitSet32 idBits, |
| int32_t changedId, float xPrecision, float yPrecision, nsecs_t downTime); |
| |
| // Updates pointer coords and properties for pointers with specified ids that have moved. |
| // Returns true if any of them changed. |
| bool updateMovedPointers(const PointerProperties* inProperties, |
| const PointerCoords* inCoords, const uint32_t* inIdToIndex, |
| PointerProperties* outProperties, PointerCoords* outCoords, |
| const uint32_t* outIdToIndex, BitSet32 idBits) const; |
| |
| bool isPointInsideSurface(int32_t x, int32_t y); |
| const VirtualKey* findVirtualKeyHit(int32_t x, int32_t y); |
| |
| static void assignPointerIds(const RawState* last, RawState* current); |
| |
| const char* modeToString(DeviceMode deviceMode); |
| }; |
| |
| |
| class SingleTouchInputMapper : public TouchInputMapper { |
| public: |
| explicit SingleTouchInputMapper(InputDevice* device); |
| virtual ~SingleTouchInputMapper(); |
| |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent); |
| |
| protected: |
| virtual void syncTouch(nsecs_t when, RawState* outState); |
| virtual void configureRawPointerAxes(); |
| virtual bool hasStylus() const; |
| |
| private: |
| SingleTouchMotionAccumulator mSingleTouchMotionAccumulator; |
| }; |
| |
| |
| class MultiTouchInputMapper : public TouchInputMapper { |
| public: |
| explicit MultiTouchInputMapper(InputDevice* device); |
| virtual ~MultiTouchInputMapper(); |
| |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent); |
| |
| protected: |
| virtual void syncTouch(nsecs_t when, RawState* outState); |
| virtual void configureRawPointerAxes(); |
| virtual bool hasStylus() const; |
| |
| private: |
| MultiTouchMotionAccumulator mMultiTouchMotionAccumulator; |
| |
| // Specifies the pointer id bits that are in use, and their associated tracking id. |
| BitSet32 mPointerIdBits; |
| int32_t mPointerTrackingIdMap[MAX_POINTER_ID + 1]; |
| }; |
| |
| class ExternalStylusInputMapper : public InputMapper { |
| public: |
| explicit ExternalStylusInputMapper(InputDevice* device); |
| virtual ~ExternalStylusInputMapper() = default; |
| |
| virtual uint32_t getSources(); |
| virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo); |
| virtual void dump(String8& dump); |
| virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes); |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent); |
| virtual void sync(nsecs_t when); |
| |
| private: |
| SingleTouchMotionAccumulator mSingleTouchMotionAccumulator; |
| RawAbsoluteAxisInfo mRawPressureAxis; |
| TouchButtonAccumulator mTouchButtonAccumulator; |
| |
| StylusState mStylusState; |
| }; |
| |
| |
| class JoystickInputMapper : public InputMapper { |
| public: |
| explicit JoystickInputMapper(InputDevice* device); |
| virtual ~JoystickInputMapper(); |
| |
| virtual uint32_t getSources(); |
| virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo); |
| virtual void dump(String8& dump); |
| virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes); |
| virtual void reset(nsecs_t when); |
| virtual void process(const RawEvent* rawEvent); |
| |
| private: |
| struct Axis { |
| RawAbsoluteAxisInfo rawAxisInfo; |
| AxisInfo axisInfo; |
| |
| bool explicitlyMapped; // true if the axis was explicitly assigned an axis id |
| |
| float scale; // scale factor from raw to normalized values |
| float offset; // offset to add after scaling for normalization |
| float highScale; // scale factor from raw to normalized values of high split |
| float highOffset; // offset to add after scaling for normalization of high split |
| |
| float min; // normalized inclusive minimum |
| float max; // normalized inclusive maximum |
| float flat; // normalized flat region size |
| float fuzz; // normalized error tolerance |
| float resolution; // normalized resolution in units/mm |
| |
| float filter; // filter out small variations of this size |
| float currentValue; // current value |
| float newValue; // most recent value |
| float highCurrentValue; // current value of high split |
| float highNewValue; // most recent value of high split |
| |
| void initialize(const RawAbsoluteAxisInfo& rawAxisInfo, const AxisInfo& axisInfo, |
| bool explicitlyMapped, float scale, float offset, |
| float highScale, float highOffset, |
| float min, float max, float flat, float fuzz, float resolution) { |
| this->rawAxisInfo = rawAxisInfo; |
| this->axisInfo = axisInfo; |
| this->explicitlyMapped = explicitlyMapped; |
| this->scale = scale; |
| this->offset = offset; |
| this->highScale = highScale; |
| this->highOffset = highOffset; |
| this->min = min; |
| this->max = max; |
| this->flat = flat; |
| this->fuzz = fuzz; |
| this->resolution = resolution; |
| this->filter = 0; |
| resetValue(); |
| } |
| |
| void resetValue() { |
| this->currentValue = 0; |
| this->newValue = 0; |
| this->highCurrentValue = 0; |
| this->highNewValue = 0; |
| } |
| }; |
| |
| // Axes indexed by raw ABS_* axis index. |
| KeyedVector<int32_t, Axis> mAxes; |
| |
| void sync(nsecs_t when, bool force); |
| |
| bool haveAxis(int32_t axisId); |
| void pruneAxes(bool ignoreExplicitlyMappedAxes); |
| bool filterAxes(bool force); |
| |
| static bool hasValueChangedSignificantly(float filter, |
| float newValue, float currentValue, float min, float max); |
| static bool hasMovedNearerToValueWithinFilteredRange(float filter, |
| float newValue, float currentValue, float thresholdValue); |
| |
| static bool isCenteredAxis(int32_t axis); |
| static int32_t getCompatAxis(int32_t axis); |
| |
| static void addMotionRange(int32_t axisId, const Axis& axis, InputDeviceInfo* info); |
| static void setPointerCoordsAxisValue(PointerCoords* pointerCoords, int32_t axis, |
| float value); |
| }; |
| |
| } // namespace android |
| |
| #endif // _UI_INPUT_READER_H |
