Split InputReader into multiple files
This CL:
1) Moves commonly used macros and shared definitions into Macros.h,
which is included as the first #include statement in the files that
require it.
2) Creates InputReaderContext.h and moves the context definition outside
the InputReader.h file.
3) Moves InputDevice, InputMapper, StylusState, and all of the
individual InputMappers into their own header and cpp file combinations.
4) Moves all Accumulator classes that are shared between multiple
InputMappers into their own header and cpp file combinations. The
definitions of Accumulators that are unique to a mapper are kept in the
header file of the mapper.
5) Moves constants and static methods that were shared between the
TouchInputMapper and CursorInputMapper to
TouchCursorInputMapperCommon.h.
6) Creates an 'include' directory, as well as a header library build rule,
to hold all the header files required by InputReader_test.cpp.
7) Runs clang-format on the newly create files to fix formatting
inconsistencies.
Bug: 140139676
Test: atest inputflinger_tests
Test: Touch, keyboard, trackpad, and mouse works on crosshatch
Change-Id: Ib1ac871c7f4199729bf6d0e6a53ed907af318986
diff --git a/services/inputflinger/reader/include/InputReader.h b/services/inputflinger/reader/include/InputReader.h
index 1b8177c..4288069 100644
--- a/services/inputflinger/reader/include/InputReader.h
+++ b/services/inputflinger/reader/include/InputReader.h
@@ -14,89 +14,25 @@
* limitations under the License.
*/
-#ifndef _UI_INPUT_READER_H
-#define _UI_INPUT_READER_H
+#ifndef _UI_INPUTREADER_INPUT_READER_H
+#define _UI_INPUTREADER_INPUT_READER_H
#include "EventHub.h"
#include "InputListener.h"
#include "InputReaderBase.h"
-#include "PointerControllerInterface.h"
+#include "InputReaderContext.h"
-#include <input/DisplayViewport.h>
-#include <input/Input.h>
-#include <input/VelocityControl.h>
-#include <input/VelocityTracker.h>
-#include <ui/DisplayInfo.h>
-#include <utils/BitSet.h>
#include <utils/Condition.h>
#include <utils/KeyedVector.h>
#include <utils/Mutex.h>
-#include <utils/Timers.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <optional>
#include <vector>
namespace android {
class InputDevice;
class InputMapper;
-
-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(std::vector<InputDeviceInfo>& outDevices) = 0;
- virtual void dispatchExternalStylusState(const StylusState& outState) = 0;
-
- virtual InputReaderPolicyInterface* getPolicy() = 0;
- virtual InputListenerInterface* getListener() = 0;
- virtual EventHubInterface* getEventHub() = 0;
-
- virtual uint32_t getNextSequenceNum() = 0;
-};
+struct StylusState;
/* 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
@@ -239,1468 +175,6 @@
const int32_t* keyCodes, uint8_t* outFlags);
};
-/* 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 std::string getName() const { return mIdentifier.name; }
- inline const std::string 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 std::optional<uint8_t> getAssociatedDisplayPort() const {
- return mAssociatedDisplayPort;
- }
- inline std::optional<DisplayViewport> getAssociatedViewport() const {
- return mAssociatedViewport;
- }
- inline void setMic(bool hasMic) { mHasMic = hasMic; }
- inline bool hasMic() const { return mHasMic; }
-
- inline bool isIgnored() { return mMappers.empty(); }
-
- bool isEnabled();
- void setEnabled(bool enabled, nsecs_t when);
-
- void dump(std::string& 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;
- }
-
- std::optional<int32_t> getAssociatedDisplayId();
-
-private:
- InputReaderContext* mContext;
- int32_t mId;
- int32_t mGeneration;
- int32_t mControllerNumber;
- InputDeviceIdentifier mIdentifier;
- std::string mAlias;
- uint32_t mClasses;
-
- std::vector<InputMapper*> mMappers;
-
- uint32_t mSources;
- bool mIsExternal;
- std::optional<uint8_t> mAssociatedDisplayPort;
- std::optional<DisplayViewport> mAssociatedViewport;
- 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();
- inline int32_t getRawWidth() const { return x.maxValue - x.minValue + 1; }
- inline int32_t getRawHeight() const { return y.maxValue - y.minValue + 1; }
- 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 std::string 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(std::string& 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();
- virtual std::optional<int32_t> getAssociatedDisplayId() { return std::nullopt; }
-
-protected:
- InputDevice* mDevice;
- InputReaderContext* mContext;
-
- status_t getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo);
- void bumpGeneration();
-
- static void dumpRawAbsoluteAxisInfo(std::string& dump, const RawAbsoluteAxisInfo& axis,
- const char* name);
- static void dumpStylusState(std::string& 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(std::string& 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(std::string& 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(std::string& 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);
- virtual std::optional<int32_t> getAssociatedDisplayId();
-
-private:
- // The current viewport.
- std::optional<DisplayViewport> mViewport;
-
- struct KeyDown {
- int32_t keyCode;
- int32_t scanCode;
- };
-
- uint32_t mSource;
- int32_t mKeyboardType;
-
- std::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 orientationAware;
- bool handlesKeyRepeat;
- } mParameters;
-
- void configureParameters();
- void dumpParameters(std::string& dump);
-
- int32_t getOrientation();
- int32_t getDisplayId();
-
- 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);
- std::optional<DisplayViewport> findViewport(nsecs_t when,
- const InputReaderConfiguration* config);
-};
-
-class CursorInputMapper : public InputMapper {
-public:
- explicit CursorInputMapper(InputDevice* device);
- virtual ~CursorInputMapper();
-
- virtual uint32_t getSources();
- virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo);
- virtual void dump(std::string& 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();
-
- virtual std::optional<int32_t> getAssociatedDisplayId();
-
-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(std::string& 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(std::string& 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(std::string& 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);
- virtual std::optional<int32_t> getAssociatedDisplayId();
-
-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;
- std::string 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;
- }
- };
-
- std::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;
-
- std::vector<VirtualKey> mVirtualKeys;
-
- virtual void configureParameters();
- virtual void dumpParameters(std::string& dump);
- virtual void configureRawPointerAxes();
- virtual void dumpRawPointerAxes(std::string& dump);
- virtual void configureSurface(nsecs_t when, bool* outResetNeeded);
- virtual void dumpSurface(std::string& dump);
- virtual void configureVirtualKeys();
- virtual void dumpVirtualKeys(std::string& dump);
- virtual void parseCalibration();
- virtual void resolveCalibration();
- virtual void dumpCalibration(std::string& dump);
- virtual void updateAffineTransformation();
- virtual void dumpAffineTransformation(std::string& 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.
- int32_t mSurfaceWidth;
- int32_t mSurfaceHeight;
- int32_t mSurfaceLeft;
- int32_t mSurfaceTop;
-
- // Similar to the surface coordinates, but in the raw display coordinate space rather than in
- // the logical coordinate space.
- int32_t mPhysicalWidth;
- int32_t mPhysicalHeight;
- int32_t mPhysicalLeft;
- int32_t mPhysicalTop;
-
- // 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 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;
-
- std::optional<DisplayViewport> findViewport();
-
- 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(std::string& 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(std::string& 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
+#endif // _UI_INPUTREADER_INPUT_READER_H