872db4f11e
Native doesn't ever actually care about the attributes of keys, so move all of it up into the managed layer and move all of the key names down so they're defined once. Change-Id: Ic8ded13ce050b2b98744735ff50d11e8d882d7d5
586 lines
18 KiB
C++
586 lines
18 KiB
C++
/*
|
|
* Copyright (C) 2010 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#define LOG_TAG "Input"
|
|
//#define LOG_NDEBUG 0
|
|
|
|
#include <math.h>
|
|
#include <limits.h>
|
|
|
|
#include <input/Input.h>
|
|
#include <input/InputEventLabels.h>
|
|
|
|
#ifdef HAVE_ANDROID_OS
|
|
#include <binder/Parcel.h>
|
|
#endif
|
|
|
|
namespace android {
|
|
|
|
// --- InputEvent ---
|
|
|
|
void InputEvent::initialize(int32_t deviceId, int32_t source) {
|
|
mDeviceId = deviceId;
|
|
mSource = source;
|
|
}
|
|
|
|
void InputEvent::initialize(const InputEvent& from) {
|
|
mDeviceId = from.mDeviceId;
|
|
mSource = from.mSource;
|
|
}
|
|
|
|
// --- KeyEvent ---
|
|
|
|
const char* KeyEvent::getLabel(int32_t keyCode) {
|
|
return getLabelByKeyCode(keyCode);
|
|
}
|
|
|
|
int32_t KeyEvent::getKeyCodeFromLabel(const char* label) {
|
|
return getKeyCodeByLabel(label);
|
|
}
|
|
|
|
void KeyEvent::initialize(
|
|
int32_t deviceId,
|
|
int32_t source,
|
|
int32_t action,
|
|
int32_t flags,
|
|
int32_t keyCode,
|
|
int32_t scanCode,
|
|
int32_t metaState,
|
|
int32_t repeatCount,
|
|
nsecs_t downTime,
|
|
nsecs_t eventTime) {
|
|
InputEvent::initialize(deviceId, source);
|
|
mAction = action;
|
|
mFlags = flags;
|
|
mKeyCode = keyCode;
|
|
mScanCode = scanCode;
|
|
mMetaState = metaState;
|
|
mRepeatCount = repeatCount;
|
|
mDownTime = downTime;
|
|
mEventTime = eventTime;
|
|
}
|
|
|
|
void KeyEvent::initialize(const KeyEvent& from) {
|
|
InputEvent::initialize(from);
|
|
mAction = from.mAction;
|
|
mFlags = from.mFlags;
|
|
mKeyCode = from.mKeyCode;
|
|
mScanCode = from.mScanCode;
|
|
mMetaState = from.mMetaState;
|
|
mRepeatCount = from.mRepeatCount;
|
|
mDownTime = from.mDownTime;
|
|
mEventTime = from.mEventTime;
|
|
}
|
|
|
|
|
|
// --- PointerCoords ---
|
|
|
|
float PointerCoords::getAxisValue(int32_t axis) const {
|
|
if (axis < 0 || axis > 63 || !BitSet64::hasBit(bits, axis)){
|
|
return 0;
|
|
}
|
|
return values[BitSet64::getIndexOfBit(bits, axis)];
|
|
}
|
|
|
|
status_t PointerCoords::setAxisValue(int32_t axis, float value) {
|
|
if (axis < 0 || axis > 63) {
|
|
return NAME_NOT_FOUND;
|
|
}
|
|
|
|
uint32_t index = BitSet64::getIndexOfBit(bits, axis);
|
|
if (!BitSet64::hasBit(bits, axis)) {
|
|
if (value == 0) {
|
|
return OK; // axes with value 0 do not need to be stored
|
|
}
|
|
|
|
uint32_t count = BitSet64::count(bits);
|
|
if (count >= MAX_AXES) {
|
|
tooManyAxes(axis);
|
|
return NO_MEMORY;
|
|
}
|
|
BitSet64::markBit(bits, axis);
|
|
for (uint32_t i = count; i > index; i--) {
|
|
values[i] = values[i - 1];
|
|
}
|
|
}
|
|
|
|
values[index] = value;
|
|
return OK;
|
|
}
|
|
|
|
static inline void scaleAxisValue(PointerCoords& c, int axis, float scaleFactor) {
|
|
float value = c.getAxisValue(axis);
|
|
if (value != 0) {
|
|
c.setAxisValue(axis, value * scaleFactor);
|
|
}
|
|
}
|
|
|
|
void PointerCoords::scale(float scaleFactor) {
|
|
// No need to scale pressure or size since they are normalized.
|
|
// No need to scale orientation since it is meaningless to do so.
|
|
scaleAxisValue(*this, AMOTION_EVENT_AXIS_X, scaleFactor);
|
|
scaleAxisValue(*this, AMOTION_EVENT_AXIS_Y, scaleFactor);
|
|
scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MAJOR, scaleFactor);
|
|
scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MINOR, scaleFactor);
|
|
scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MAJOR, scaleFactor);
|
|
scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MINOR, scaleFactor);
|
|
}
|
|
|
|
void PointerCoords::applyOffset(float xOffset, float yOffset) {
|
|
setAxisValue(AMOTION_EVENT_AXIS_X, getX() + xOffset);
|
|
setAxisValue(AMOTION_EVENT_AXIS_Y, getY() + yOffset);
|
|
}
|
|
|
|
#ifdef HAVE_ANDROID_OS
|
|
status_t PointerCoords::readFromParcel(Parcel* parcel) {
|
|
bits = parcel->readInt64();
|
|
|
|
uint32_t count = BitSet64::count(bits);
|
|
if (count > MAX_AXES) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < count; i++) {
|
|
values[i] = parcel->readFloat();
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
status_t PointerCoords::writeToParcel(Parcel* parcel) const {
|
|
parcel->writeInt64(bits);
|
|
|
|
uint32_t count = BitSet64::count(bits);
|
|
for (uint32_t i = 0; i < count; i++) {
|
|
parcel->writeFloat(values[i]);
|
|
}
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
void PointerCoords::tooManyAxes(int axis) {
|
|
ALOGW("Could not set value for axis %d because the PointerCoords structure is full and "
|
|
"cannot contain more than %d axis values.", axis, int(MAX_AXES));
|
|
}
|
|
|
|
bool PointerCoords::operator==(const PointerCoords& other) const {
|
|
if (bits != other.bits) {
|
|
return false;
|
|
}
|
|
uint32_t count = BitSet64::count(bits);
|
|
for (uint32_t i = 0; i < count; i++) {
|
|
if (values[i] != other.values[i]) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void PointerCoords::copyFrom(const PointerCoords& other) {
|
|
bits = other.bits;
|
|
uint32_t count = BitSet64::count(bits);
|
|
for (uint32_t i = 0; i < count; i++) {
|
|
values[i] = other.values[i];
|
|
}
|
|
}
|
|
|
|
|
|
// --- PointerProperties ---
|
|
|
|
bool PointerProperties::operator==(const PointerProperties& other) const {
|
|
return id == other.id
|
|
&& toolType == other.toolType;
|
|
}
|
|
|
|
void PointerProperties::copyFrom(const PointerProperties& other) {
|
|
id = other.id;
|
|
toolType = other.toolType;
|
|
}
|
|
|
|
|
|
// --- MotionEvent ---
|
|
|
|
void MotionEvent::initialize(
|
|
int32_t deviceId,
|
|
int32_t source,
|
|
int32_t action,
|
|
int32_t flags,
|
|
int32_t edgeFlags,
|
|
int32_t metaState,
|
|
int32_t buttonState,
|
|
float xOffset,
|
|
float yOffset,
|
|
float xPrecision,
|
|
float yPrecision,
|
|
nsecs_t downTime,
|
|
nsecs_t eventTime,
|
|
size_t pointerCount,
|
|
const PointerProperties* pointerProperties,
|
|
const PointerCoords* pointerCoords) {
|
|
InputEvent::initialize(deviceId, source);
|
|
mAction = action;
|
|
mFlags = flags;
|
|
mEdgeFlags = edgeFlags;
|
|
mMetaState = metaState;
|
|
mButtonState = buttonState;
|
|
mXOffset = xOffset;
|
|
mYOffset = yOffset;
|
|
mXPrecision = xPrecision;
|
|
mYPrecision = yPrecision;
|
|
mDownTime = downTime;
|
|
mPointerProperties.clear();
|
|
mPointerProperties.appendArray(pointerProperties, pointerCount);
|
|
mSampleEventTimes.clear();
|
|
mSamplePointerCoords.clear();
|
|
addSample(eventTime, pointerCoords);
|
|
}
|
|
|
|
void MotionEvent::copyFrom(const MotionEvent* other, bool keepHistory) {
|
|
InputEvent::initialize(other->mDeviceId, other->mSource);
|
|
mAction = other->mAction;
|
|
mFlags = other->mFlags;
|
|
mEdgeFlags = other->mEdgeFlags;
|
|
mMetaState = other->mMetaState;
|
|
mButtonState = other->mButtonState;
|
|
mXOffset = other->mXOffset;
|
|
mYOffset = other->mYOffset;
|
|
mXPrecision = other->mXPrecision;
|
|
mYPrecision = other->mYPrecision;
|
|
mDownTime = other->mDownTime;
|
|
mPointerProperties = other->mPointerProperties;
|
|
|
|
if (keepHistory) {
|
|
mSampleEventTimes = other->mSampleEventTimes;
|
|
mSamplePointerCoords = other->mSamplePointerCoords;
|
|
} else {
|
|
mSampleEventTimes.clear();
|
|
mSampleEventTimes.push(other->getEventTime());
|
|
mSamplePointerCoords.clear();
|
|
size_t pointerCount = other->getPointerCount();
|
|
size_t historySize = other->getHistorySize();
|
|
mSamplePointerCoords.appendArray(other->mSamplePointerCoords.array()
|
|
+ (historySize * pointerCount), pointerCount);
|
|
}
|
|
}
|
|
|
|
void MotionEvent::addSample(
|
|
int64_t eventTime,
|
|
const PointerCoords* pointerCoords) {
|
|
mSampleEventTimes.push(eventTime);
|
|
mSamplePointerCoords.appendArray(pointerCoords, getPointerCount());
|
|
}
|
|
|
|
const PointerCoords* MotionEvent::getRawPointerCoords(size_t pointerIndex) const {
|
|
return &mSamplePointerCoords[getHistorySize() * getPointerCount() + pointerIndex];
|
|
}
|
|
|
|
float MotionEvent::getRawAxisValue(int32_t axis, size_t pointerIndex) const {
|
|
return getRawPointerCoords(pointerIndex)->getAxisValue(axis);
|
|
}
|
|
|
|
float MotionEvent::getAxisValue(int32_t axis, size_t pointerIndex) const {
|
|
float value = getRawPointerCoords(pointerIndex)->getAxisValue(axis);
|
|
switch (axis) {
|
|
case AMOTION_EVENT_AXIS_X:
|
|
return value + mXOffset;
|
|
case AMOTION_EVENT_AXIS_Y:
|
|
return value + mYOffset;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
const PointerCoords* MotionEvent::getHistoricalRawPointerCoords(
|
|
size_t pointerIndex, size_t historicalIndex) const {
|
|
return &mSamplePointerCoords[historicalIndex * getPointerCount() + pointerIndex];
|
|
}
|
|
|
|
float MotionEvent::getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
|
|
size_t historicalIndex) const {
|
|
return getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);
|
|
}
|
|
|
|
float MotionEvent::getHistoricalAxisValue(int32_t axis, size_t pointerIndex,
|
|
size_t historicalIndex) const {
|
|
float value = getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);
|
|
switch (axis) {
|
|
case AMOTION_EVENT_AXIS_X:
|
|
return value + mXOffset;
|
|
case AMOTION_EVENT_AXIS_Y:
|
|
return value + mYOffset;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
ssize_t MotionEvent::findPointerIndex(int32_t pointerId) const {
|
|
size_t pointerCount = mPointerProperties.size();
|
|
for (size_t i = 0; i < pointerCount; i++) {
|
|
if (mPointerProperties.itemAt(i).id == pointerId) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void MotionEvent::offsetLocation(float xOffset, float yOffset) {
|
|
mXOffset += xOffset;
|
|
mYOffset += yOffset;
|
|
}
|
|
|
|
void MotionEvent::scale(float scaleFactor) {
|
|
mXOffset *= scaleFactor;
|
|
mYOffset *= scaleFactor;
|
|
mXPrecision *= scaleFactor;
|
|
mYPrecision *= scaleFactor;
|
|
|
|
size_t numSamples = mSamplePointerCoords.size();
|
|
for (size_t i = 0; i < numSamples; i++) {
|
|
mSamplePointerCoords.editItemAt(i).scale(scaleFactor);
|
|
}
|
|
}
|
|
|
|
static void transformPoint(const float matrix[9], float x, float y, float *outX, float *outY) {
|
|
// Apply perspective transform like Skia.
|
|
float newX = matrix[0] * x + matrix[1] * y + matrix[2];
|
|
float newY = matrix[3] * x + matrix[4] * y + matrix[5];
|
|
float newZ = matrix[6] * x + matrix[7] * y + matrix[8];
|
|
if (newZ) {
|
|
newZ = 1.0f / newZ;
|
|
}
|
|
*outX = newX * newZ;
|
|
*outY = newY * newZ;
|
|
}
|
|
|
|
static float transformAngle(const float matrix[9], float angleRadians,
|
|
float originX, float originY) {
|
|
// Construct and transform a vector oriented at the specified clockwise angle from vertical.
|
|
// Coordinate system: down is increasing Y, right is increasing X.
|
|
float x = sinf(angleRadians);
|
|
float y = -cosf(angleRadians);
|
|
transformPoint(matrix, x, y, &x, &y);
|
|
x -= originX;
|
|
y -= originY;
|
|
|
|
// Derive the transformed vector's clockwise angle from vertical.
|
|
float result = atan2f(x, -y);
|
|
if (result < - M_PI_2) {
|
|
result += M_PI;
|
|
} else if (result > M_PI_2) {
|
|
result -= M_PI;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void MotionEvent::transform(const float matrix[9]) {
|
|
// The tricky part of this implementation is to preserve the value of
|
|
// rawX and rawY. So we apply the transformation to the first point
|
|
// then derive an appropriate new X/Y offset that will preserve rawX
|
|
// and rawY for that point.
|
|
float oldXOffset = mXOffset;
|
|
float oldYOffset = mYOffset;
|
|
float newX, newY;
|
|
float rawX = getRawX(0);
|
|
float rawY = getRawY(0);
|
|
transformPoint(matrix, rawX + oldXOffset, rawY + oldYOffset, &newX, &newY);
|
|
mXOffset = newX - rawX;
|
|
mYOffset = newY - rawY;
|
|
|
|
// Determine how the origin is transformed by the matrix so that we
|
|
// can transform orientation vectors.
|
|
float originX, originY;
|
|
transformPoint(matrix, 0, 0, &originX, &originY);
|
|
|
|
// Apply the transformation to all samples.
|
|
size_t numSamples = mSamplePointerCoords.size();
|
|
for (size_t i = 0; i < numSamples; i++) {
|
|
PointerCoords& c = mSamplePointerCoords.editItemAt(i);
|
|
float x = c.getAxisValue(AMOTION_EVENT_AXIS_X) + oldXOffset;
|
|
float y = c.getAxisValue(AMOTION_EVENT_AXIS_Y) + oldYOffset;
|
|
transformPoint(matrix, x, y, &x, &y);
|
|
c.setAxisValue(AMOTION_EVENT_AXIS_X, x - mXOffset);
|
|
c.setAxisValue(AMOTION_EVENT_AXIS_Y, y - mYOffset);
|
|
|
|
float orientation = c.getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION);
|
|
c.setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION,
|
|
transformAngle(matrix, orientation, originX, originY));
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_ANDROID_OS
|
|
status_t MotionEvent::readFromParcel(Parcel* parcel) {
|
|
size_t pointerCount = parcel->readInt32();
|
|
size_t sampleCount = parcel->readInt32();
|
|
if (pointerCount == 0 || pointerCount > MAX_POINTERS || sampleCount == 0) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
mDeviceId = parcel->readInt32();
|
|
mSource = parcel->readInt32();
|
|
mAction = parcel->readInt32();
|
|
mFlags = parcel->readInt32();
|
|
mEdgeFlags = parcel->readInt32();
|
|
mMetaState = parcel->readInt32();
|
|
mButtonState = parcel->readInt32();
|
|
mXOffset = parcel->readFloat();
|
|
mYOffset = parcel->readFloat();
|
|
mXPrecision = parcel->readFloat();
|
|
mYPrecision = parcel->readFloat();
|
|
mDownTime = parcel->readInt64();
|
|
|
|
mPointerProperties.clear();
|
|
mPointerProperties.setCapacity(pointerCount);
|
|
mSampleEventTimes.clear();
|
|
mSampleEventTimes.setCapacity(sampleCount);
|
|
mSamplePointerCoords.clear();
|
|
mSamplePointerCoords.setCapacity(sampleCount * pointerCount);
|
|
|
|
for (size_t i = 0; i < pointerCount; i++) {
|
|
mPointerProperties.push();
|
|
PointerProperties& properties = mPointerProperties.editTop();
|
|
properties.id = parcel->readInt32();
|
|
properties.toolType = parcel->readInt32();
|
|
}
|
|
|
|
while (sampleCount-- > 0) {
|
|
mSampleEventTimes.push(parcel->readInt64());
|
|
for (size_t i = 0; i < pointerCount; i++) {
|
|
mSamplePointerCoords.push();
|
|
status_t status = mSamplePointerCoords.editTop().readFromParcel(parcel);
|
|
if (status) {
|
|
return status;
|
|
}
|
|
}
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
status_t MotionEvent::writeToParcel(Parcel* parcel) const {
|
|
size_t pointerCount = mPointerProperties.size();
|
|
size_t sampleCount = mSampleEventTimes.size();
|
|
|
|
parcel->writeInt32(pointerCount);
|
|
parcel->writeInt32(sampleCount);
|
|
|
|
parcel->writeInt32(mDeviceId);
|
|
parcel->writeInt32(mSource);
|
|
parcel->writeInt32(mAction);
|
|
parcel->writeInt32(mFlags);
|
|
parcel->writeInt32(mEdgeFlags);
|
|
parcel->writeInt32(mMetaState);
|
|
parcel->writeInt32(mButtonState);
|
|
parcel->writeFloat(mXOffset);
|
|
parcel->writeFloat(mYOffset);
|
|
parcel->writeFloat(mXPrecision);
|
|
parcel->writeFloat(mYPrecision);
|
|
parcel->writeInt64(mDownTime);
|
|
|
|
for (size_t i = 0; i < pointerCount; i++) {
|
|
const PointerProperties& properties = mPointerProperties.itemAt(i);
|
|
parcel->writeInt32(properties.id);
|
|
parcel->writeInt32(properties.toolType);
|
|
}
|
|
|
|
const PointerCoords* pc = mSamplePointerCoords.array();
|
|
for (size_t h = 0; h < sampleCount; h++) {
|
|
parcel->writeInt64(mSampleEventTimes.itemAt(h));
|
|
for (size_t i = 0; i < pointerCount; i++) {
|
|
status_t status = (pc++)->writeToParcel(parcel);
|
|
if (status) {
|
|
return status;
|
|
}
|
|
}
|
|
}
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
bool MotionEvent::isTouchEvent(int32_t source, int32_t action) {
|
|
if (source & AINPUT_SOURCE_CLASS_POINTER) {
|
|
// Specifically excludes HOVER_MOVE and SCROLL.
|
|
switch (action & AMOTION_EVENT_ACTION_MASK) {
|
|
case AMOTION_EVENT_ACTION_DOWN:
|
|
case AMOTION_EVENT_ACTION_MOVE:
|
|
case AMOTION_EVENT_ACTION_UP:
|
|
case AMOTION_EVENT_ACTION_POINTER_DOWN:
|
|
case AMOTION_EVENT_ACTION_POINTER_UP:
|
|
case AMOTION_EVENT_ACTION_CANCEL:
|
|
case AMOTION_EVENT_ACTION_OUTSIDE:
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
const char* MotionEvent::getLabel(int32_t axis) {
|
|
return getAxisLabel(axis);
|
|
}
|
|
|
|
int32_t MotionEvent::getAxisFromLabel(const char* label) {
|
|
return getAxisByLabel(label);
|
|
}
|
|
|
|
|
|
// --- PooledInputEventFactory ---
|
|
|
|
PooledInputEventFactory::PooledInputEventFactory(size_t maxPoolSize) :
|
|
mMaxPoolSize(maxPoolSize) {
|
|
}
|
|
|
|
PooledInputEventFactory::~PooledInputEventFactory() {
|
|
for (size_t i = 0; i < mKeyEventPool.size(); i++) {
|
|
delete mKeyEventPool.itemAt(i);
|
|
}
|
|
for (size_t i = 0; i < mMotionEventPool.size(); i++) {
|
|
delete mMotionEventPool.itemAt(i);
|
|
}
|
|
}
|
|
|
|
KeyEvent* PooledInputEventFactory::createKeyEvent() {
|
|
if (!mKeyEventPool.isEmpty()) {
|
|
KeyEvent* event = mKeyEventPool.top();
|
|
mKeyEventPool.pop();
|
|
return event;
|
|
}
|
|
return new KeyEvent();
|
|
}
|
|
|
|
MotionEvent* PooledInputEventFactory::createMotionEvent() {
|
|
if (!mMotionEventPool.isEmpty()) {
|
|
MotionEvent* event = mMotionEventPool.top();
|
|
mMotionEventPool.pop();
|
|
return event;
|
|
}
|
|
return new MotionEvent();
|
|
}
|
|
|
|
void PooledInputEventFactory::recycle(InputEvent* event) {
|
|
switch (event->getType()) {
|
|
case AINPUT_EVENT_TYPE_KEY:
|
|
if (mKeyEventPool.size() < mMaxPoolSize) {
|
|
mKeyEventPool.push(static_cast<KeyEvent*>(event));
|
|
return;
|
|
}
|
|
break;
|
|
case AINPUT_EVENT_TYPE_MOTION:
|
|
if (mMotionEventPool.size() < mMaxPoolSize) {
|
|
mMotionEventPool.push(static_cast<MotionEvent*>(event));
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
delete event;
|
|
}
|
|
|
|
} // namespace android
|