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-rw-r--r--libs/input/Input.cpp285
1 files changed, 169 insertions, 116 deletions
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index 2581668429..00925ba555 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -21,7 +21,9 @@
#include <cutils/compiler.h>
#include <inttypes.h>
#include <string.h>
+#include <optional>
+#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
#include <cutils/compiler.h>
@@ -34,7 +36,7 @@
#ifdef __linux__
#include <binder/Parcel.h>
#endif
-#ifdef __ANDROID__
+#if defined(__ANDROID__)
#include <sys/random.h>
#endif
@@ -44,25 +46,6 @@ namespace android {
namespace {
-float transformAngle(const ui::Transform& transform, float angleRadians) {
- // 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);
- vec2 transformedPoint = transform.transform(x, y);
-
- // Determine how the origin is transformed by the matrix so that we
- // can transform orientation vectors.
- const vec2 origin = transform.transform(0, 0);
-
- transformedPoint.x -= origin.x;
- transformedPoint.y -= origin.y;
-
- // Derive the transformed vector's clockwise angle from vertical.
- // The return value of atan2f is in range [-pi, pi] which conforms to the orientation API.
- return atan2f(transformedPoint.x, -transformedPoint.y);
-}
-
bool shouldDisregardTransformation(uint32_t source) {
// Do not apply any transformations to axes from joysticks, touchpads, or relative mice.
return isFromSource(source, AINPUT_SOURCE_CLASS_JOYSTICK) ||
@@ -87,38 +70,41 @@ const char* motionClassificationToString(MotionClassification classification) {
return "AMBIGUOUS_GESTURE";
case MotionClassification::DEEP_PRESS:
return "DEEP_PRESS";
+ case MotionClassification::TWO_FINGER_SWIPE:
+ return "TWO_FINGER_SWIPE";
+ case MotionClassification::MULTI_FINGER_SWIPE:
+ return "MULTI_FINGER_SWIPE";
+ case MotionClassification::PINCH:
+ return "PINCH";
}
}
-const char* motionToolTypeToString(int32_t toolType) {
- switch (toolType) {
- case AMOTION_EVENT_TOOL_TYPE_UNKNOWN:
- return "UNKNOWN";
- case AMOTION_EVENT_TOOL_TYPE_FINGER:
- return "FINGER";
- case AMOTION_EVENT_TOOL_TYPE_STYLUS:
- return "STYLUS";
- case AMOTION_EVENT_TOOL_TYPE_MOUSE:
- return "MOUSE";
- case AMOTION_EVENT_TOOL_TYPE_ERASER:
- return "ERASER";
- case AMOTION_EVENT_TOOL_TYPE_PALM:
- return "PALM";
- default:
- return "INVALID";
+// --- IdGenerator ---
+#if defined(__ANDROID__)
+[[maybe_unused]]
+#endif
+static status_t
+getRandomBytes(uint8_t* data, size_t size) {
+ int ret = TEMP_FAILURE_RETRY(open("/dev/urandom", O_RDONLY | O_CLOEXEC | O_NOFOLLOW));
+ if (ret == -1) {
+ return -errno;
+ }
+
+ base::unique_fd fd(ret);
+ if (!base::ReadFully(fd, data, size)) {
+ return -errno;
}
+ return OK;
}
-// --- IdGenerator ---
IdGenerator::IdGenerator(Source source) : mSource(source) {}
int32_t IdGenerator::nextId() const {
constexpr uint32_t SEQUENCE_NUMBER_MASK = ~SOURCE_MASK;
int32_t id = 0;
-// Avoid building against syscall getrandom(2) on host, which will fail build on Mac. Host doesn't
-// use sequence number so just always return mSource.
-#ifdef __ANDROID__
+#if defined(__ANDROID__)
+ // On device, prefer 'getrandom' to '/dev/urandom' because it's faster.
constexpr size_t BUF_LEN = sizeof(id);
size_t totalBytes = 0;
while (totalBytes < BUF_LEN) {
@@ -130,8 +116,17 @@ int32_t IdGenerator::nextId() const {
}
totalBytes += bytes;
}
+#else
+#if defined(__linux__)
+ // On host, <sys/random.h> / GRND_NONBLOCK is not available
+ while (true) {
+ status_t result = getRandomBytes(reinterpret_cast<uint8_t*>(&id), sizeof(id));
+ if (result == OK) {
+ break;
+ }
+ }
+#endif // __linux__
#endif // __ANDROID__
-
return (id & SEQUENCE_NUMBER_MASK) | static_cast<int32_t>(mSource);
}
@@ -156,28 +151,23 @@ vec2 transformWithoutTranslation(const ui::Transform& transform, const vec2& xy)
return roundTransformedCoords(transformedXy - transformedOrigin);
}
-const char* inputEventTypeToString(int32_t type) {
- switch (type) {
- case AINPUT_EVENT_TYPE_KEY: {
- return "KEY";
- }
- case AINPUT_EVENT_TYPE_MOTION: {
- return "MOTION";
- }
- case AINPUT_EVENT_TYPE_FOCUS: {
- return "FOCUS";
- }
- case AINPUT_EVENT_TYPE_CAPTURE: {
- return "CAPTURE";
- }
- case AINPUT_EVENT_TYPE_DRAG: {
- return "DRAG";
- }
- case AINPUT_EVENT_TYPE_TOUCH_MODE: {
- return "TOUCH_MODE";
- }
- }
- return "UNKNOWN";
+float transformAngle(const ui::Transform& transform, float angleRadians) {
+ // 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);
+ vec2 transformedPoint = transform.transform(x, y);
+
+ // Determine how the origin is transformed by the matrix so that we
+ // can transform orientation vectors.
+ const vec2 origin = transform.transform(0, 0);
+
+ transformedPoint.x -= origin.x;
+ transformedPoint.y -= origin.y;
+
+ // Derive the transformed vector's clockwise angle from vertical.
+ // The return value of atan2f is in range [-pi, pi] which conforms to the orientation API.
+ return atan2f(transformedPoint.x, -transformedPoint.y);
}
std::string inputEventSourceToString(int32_t source) {
@@ -223,6 +213,10 @@ bool isFromSource(uint32_t source, uint32_t test) {
return (source & test) == test;
}
+bool isStylusToolType(ToolType toolType) {
+ return toolType == ToolType::STYLUS || toolType == ToolType::ERASER;
+}
+
VerifiedKeyEvent verifiedKeyEventFromKeyEvent(const KeyEvent& event) {
return {{VerifiedInputEvent::Type::KEY, event.getDeviceId(), event.getEventTime(),
event.getSource(), event.getDisplayId()},
@@ -269,13 +263,44 @@ int32_t InputEvent::nextId() {
return idGen.nextId();
}
+std::ostream& operator<<(std::ostream& out, const InputEvent& event) {
+ switch (event.getType()) {
+ case InputEventType::KEY: {
+ const KeyEvent& keyEvent = static_cast<const KeyEvent&>(event);
+ out << keyEvent;
+ return out;
+ }
+ case InputEventType::MOTION: {
+ const MotionEvent& motionEvent = static_cast<const MotionEvent&>(event);
+ out << motionEvent;
+ return out;
+ }
+ case InputEventType::FOCUS: {
+ out << "FocusEvent";
+ return out;
+ }
+ case InputEventType::CAPTURE: {
+ out << "CaptureEvent";
+ return out;
+ }
+ case InputEventType::DRAG: {
+ out << "DragEvent";
+ return out;
+ }
+ case InputEventType::TOUCH_MODE: {
+ out << "TouchModeEvent";
+ return out;
+ }
+ }
+}
+
// --- KeyEvent ---
const char* KeyEvent::getLabel(int32_t keyCode) {
return InputEventLookup::getLabelByKeyCode(keyCode);
}
-int32_t KeyEvent::getKeyCodeFromLabel(const char* label) {
+std::optional<int> KeyEvent::getKeyCodeFromLabel(const char* label) {
return InputEventLookup::getKeyCodeByLabel(label);
}
@@ -319,6 +344,28 @@ const char* KeyEvent::actionToString(int32_t action) {
return "UNKNOWN";
}
+std::ostream& operator<<(std::ostream& out, const KeyEvent& event) {
+ out << "KeyEvent { action=" << KeyEvent::actionToString(event.getAction());
+
+ out << ", keycode=" << event.getKeyCode() << "(" << KeyEvent::getLabel(event.getKeyCode())
+ << ")";
+
+ if (event.getMetaState() != 0) {
+ out << ", metaState=" << event.getMetaState();
+ }
+
+ out << ", eventTime=" << event.getEventTime();
+ out << ", downTime=" << event.getDownTime();
+ out << ", flags=" << std::hex << event.getFlags() << std::dec;
+ out << ", repeatCount=" << event.getRepeatCount();
+ out << ", deviceId=" << event.getDeviceId();
+ out << ", source=" << inputEventSourceToString(event.getSource());
+ out << ", displayId=" << event.getDisplayId();
+ out << ", eventId=" << event.getId();
+ out << "}";
+ return out;
+}
+
// --- PointerCoords ---
float PointerCoords::getAxisValue(int32_t axis) const {
@@ -391,6 +438,8 @@ status_t PointerCoords::readFromParcel(Parcel* parcel) {
for (uint32_t i = 0; i < count; i++) {
values[i] = parcel->readFloat();
}
+
+ isResampled = parcel->readBool();
return OK;
}
@@ -401,6 +450,8 @@ status_t PointerCoords::writeToParcel(Parcel* parcel) const {
for (uint32_t i = 0; i < count; i++) {
parcel->writeFloat(values[i]);
}
+
+ parcel->writeBool(isResampled);
return OK;
}
#endif
@@ -420,15 +471,10 @@ bool PointerCoords::operator==(const PointerCoords& other) const {
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];
+ if (isResampled != other.isResampled) {
+ return false;
}
+ return true;
}
void PointerCoords::transform(const ui::Transform& transform) {
@@ -541,21 +587,21 @@ void MotionEvent::addSample(
&pointerCoords[getPointerCount()]);
}
-int MotionEvent::getSurfaceRotation() const {
+std::optional<ui::Rotation> MotionEvent::getSurfaceRotation() const {
// The surface rotation is the rotation from the window's coordinate space to that of the
// display. Since the event's transform takes display space coordinates to window space, the
// returned surface rotation is the inverse of the rotation for the surface.
switch (mTransform.getOrientation()) {
case ui::Transform::ROT_0:
- return DISPLAY_ORIENTATION_0;
+ return ui::ROTATION_0;
case ui::Transform::ROT_90:
- return DISPLAY_ORIENTATION_270;
+ return ui::ROTATION_270;
case ui::Transform::ROT_180:
- return DISPLAY_ORIENTATION_180;
+ return ui::ROTATION_180;
case ui::Transform::ROT_270:
- return DISPLAY_ORIENTATION_90;
+ return ui::ROTATION_90;
default:
- return -1;
+ return std::nullopt;
}
}
@@ -752,7 +798,7 @@ status_t MotionEvent::readFromParcel(Parcel* parcel) {
mPointerProperties.push_back({});
PointerProperties& properties = mPointerProperties.back();
properties.id = parcel->readInt32();
- properties.toolType = parcel->readInt32();
+ properties.toolType = static_cast<ToolType>(parcel->readInt32());
}
while (sampleCount > 0) {
@@ -808,7 +854,7 @@ status_t MotionEvent::writeToParcel(Parcel* parcel) const {
for (size_t i = 0; i < pointerCount; i++) {
const PointerProperties& properties = mPointerProperties[i];
parcel->writeInt32(properties.id);
- parcel->writeInt32(properties.toolType);
+ parcel->writeInt32(static_cast<int32_t>(properties.toolType));
}
const PointerCoords* pc = mSamplePointerCoords.data();
@@ -846,7 +892,7 @@ const char* MotionEvent::getLabel(int32_t axis) {
return InputEventLookup::getAxisLabel(axis);
}
-int32_t MotionEvent::getAxisFromLabel(const char* label) {
+std::optional<int> MotionEvent::getAxisFromLabel(const char* label) {
return InputEventLookup::getAxisByLabel(label);
}
@@ -972,9 +1018,9 @@ std::ostream& operator<<(std::ostream& out, const MotionEvent& event) {
out << ", x[" << i << "]=" << x;
out << ", y[" << i << "]=" << y;
}
- int toolType = event.getToolType(i);
- if (toolType != AMOTION_EVENT_TOOL_TYPE_FINGER) {
- out << ", toolType[" << i << "]=" << toolType;
+ ToolType toolType = event.getToolType(i);
+ if (toolType != ToolType::FINGER) {
+ out << ", toolType[" << i << "]=" << ftl::enum_string(toolType);
}
}
if (event.getButtonState() != 0) {
@@ -1126,44 +1172,51 @@ TouchModeEvent* PooledInputEventFactory::createTouchModeEvent() {
void PooledInputEventFactory::recycle(InputEvent* event) {
switch (event->getType()) {
- case AINPUT_EVENT_TYPE_KEY:
- if (mKeyEventPool.size() < mMaxPoolSize) {
- mKeyEventPool.push(std::unique_ptr<KeyEvent>(static_cast<KeyEvent*>(event)));
- return;
+ case InputEventType::KEY: {
+ if (mKeyEventPool.size() < mMaxPoolSize) {
+ mKeyEventPool.push(std::unique_ptr<KeyEvent>(static_cast<KeyEvent*>(event)));
+ return;
+ }
+ break;
}
- break;
- case AINPUT_EVENT_TYPE_MOTION:
- if (mMotionEventPool.size() < mMaxPoolSize) {
- mMotionEventPool.push(std::unique_ptr<MotionEvent>(static_cast<MotionEvent*>(event)));
- return;
+ case InputEventType::MOTION: {
+ if (mMotionEventPool.size() < mMaxPoolSize) {
+ mMotionEventPool.push(
+ std::unique_ptr<MotionEvent>(static_cast<MotionEvent*>(event)));
+ return;
+ }
+ break;
}
- break;
- case AINPUT_EVENT_TYPE_FOCUS:
- if (mFocusEventPool.size() < mMaxPoolSize) {
- mFocusEventPool.push(std::unique_ptr<FocusEvent>(static_cast<FocusEvent*>(event)));
- return;
+ case InputEventType::FOCUS: {
+ if (mFocusEventPool.size() < mMaxPoolSize) {
+ mFocusEventPool.push(std::unique_ptr<FocusEvent>(static_cast<FocusEvent*>(event)));
+ return;
+ }
+ break;
}
- break;
- case AINPUT_EVENT_TYPE_CAPTURE:
- if (mCaptureEventPool.size() < mMaxPoolSize) {
- mCaptureEventPool.push(
- std::unique_ptr<CaptureEvent>(static_cast<CaptureEvent*>(event)));
- return;
+ case InputEventType::CAPTURE: {
+ if (mCaptureEventPool.size() < mMaxPoolSize) {
+ mCaptureEventPool.push(
+ std::unique_ptr<CaptureEvent>(static_cast<CaptureEvent*>(event)));
+ return;
+ }
+ break;
}
- break;
- case AINPUT_EVENT_TYPE_DRAG:
- if (mDragEventPool.size() < mMaxPoolSize) {
- mDragEventPool.push(std::unique_ptr<DragEvent>(static_cast<DragEvent*>(event)));
- return;
+ case InputEventType::DRAG: {
+ if (mDragEventPool.size() < mMaxPoolSize) {
+ mDragEventPool.push(std::unique_ptr<DragEvent>(static_cast<DragEvent*>(event)));
+ return;
+ }
+ break;
}
- break;
- case AINPUT_EVENT_TYPE_TOUCH_MODE:
- if (mTouchModeEventPool.size() < mMaxPoolSize) {
- mTouchModeEventPool.push(
- std::unique_ptr<TouchModeEvent>(static_cast<TouchModeEvent*>(event)));
- return;
+ case InputEventType::TOUCH_MODE: {
+ if (mTouchModeEventPool.size() < mMaxPoolSize) {
+ mTouchModeEventPool.push(
+ std::unique_ptr<TouchModeEvent>(static_cast<TouchModeEvent*>(event)));
+ return;
+ }
+ break;
}
- break;
}
delete event;
}
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-20 17:51:35 +0000