Split InputFlinger into multiple libraries
This is the InputFlinger FE/BE split as detailed in
go/arc++inputflinger-split.
We split libinputflinger into the following dynamic libraries:
- libinputflinger: Acts as the frontend for inputflinger and implements
InputDispatcher and InputManager.
- libinputreader: Acts as the backend for inputflinger and impliements
InputReader and EventHub, and adds a InputReaderFactory to create
the InputReader.
- libinputflinger_base: Contains the common logic that is shared
throughout InputFlinger, and contains the definitions for
InputReaderInterface (in InputReaderBase.h) and
InputListenerInterface (in InputListener.h).
Bug: 119264687
Test: manual: Build, run, and test input (touch, mouse)
Change-Id: I8567635f48de58ee8e5bdb0f8a17a73ea6fa37ef
diff --git a/services/inputflinger/Android.bp b/services/inputflinger/Android.bp
index 7812cb2..4a8b613 100644
--- a/services/inputflinger/Android.bp
+++ b/services/inputflinger/Android.bp
@@ -18,24 +18,20 @@
cpp_std: "c++17",
srcs: [
- "EventHub.cpp",
"InputDispatcher.cpp",
- "InputListener.cpp",
"InputManager.cpp",
- "InputReader.cpp",
],
shared_libs: [
+ "libinputflinger_base",
+ "libinputreader",
"libbase",
"libbinder",
- "libcrypto",
"libcutils",
"libinput",
"liblog",
"libutils",
"libui",
- "libhardware_legacy",
- "libutils"
],
cflags: [
@@ -47,7 +43,91 @@
//-fvisibility=hidden
],
- export_include_dirs: ["."],
+ export_include_dirs: [
+ ".",
+ "include",
+ ],
+
+}
+
+
+cc_library_headers {
+ name: "libinputflinger_headers",
+
+ export_include_dirs: ["include"],
+}
+
+cc_library_shared {
+ name: "libinputreader",
+
+ cpp_std: "c++17",
+
+ srcs: [
+ "EventHub.cpp",
+ "InputReader.cpp",
+ "InputReaderFactory.cpp",
+ ],
+
+ shared_libs: [
+ "libinputflinger_base",
+ "libbase",
+ "libcrypto",
+ "libcutils",
+ "libinput",
+ "liblog",
+ "libutils",
+ "libui",
+ "libhardware_legacy",
+ "libutils"
+ ],
+
+ header_libs: [
+ "libinputflinger_headers",
+ ],
+
+ export_header_lib_headers: [
+ "libinputflinger_headers",
+ ],
+
+ cflags: [
+ "-Wall",
+ "-Wextra",
+ "-Werror",
+ "-Wno-unused-parameter",
+ ],
+}
+
+cc_library_shared {
+ name: "libinputflinger_base",
+
+ cpp_std: "c++17",
+
+ srcs: [
+ "InputListener.cpp",
+ "InputReaderBase.cpp",
+ ],
+
+ shared_libs: [
+ "libbase",
+ "libinput",
+ "liblog",
+ "libutils",
+ ],
+
+ header_libs: [
+ "libinputflinger_headers",
+ ],
+
+ export_header_lib_headers: [
+ "libinputflinger_headers",
+ ],
+
+ cflags: [
+ "-Wall",
+ "-Wextra",
+ "-Werror",
+ "-Wno-unused-parameter",
+ ],
}
subdirs = [
diff --git a/services/inputflinger/InputManager.cpp b/services/inputflinger/InputManager.cpp
index 40ca6a7..388423c 100644
--- a/services/inputflinger/InputManager.cpp
+++ b/services/inputflinger/InputManager.cpp
@@ -19,6 +19,7 @@
//#define LOG_NDEBUG 0
#include "InputManager.h"
+#include "InputReaderFactory.h"
#include <log/log.h>
#include <unordered_map>
@@ -26,19 +27,10 @@
namespace android {
InputManager::InputManager(
- const sp<EventHubInterface>& eventHub,
const sp<InputReaderPolicyInterface>& readerPolicy,
const sp<InputDispatcherPolicyInterface>& dispatcherPolicy) {
mDispatcher = new InputDispatcher(dispatcherPolicy);
- mReader = new InputReader(eventHub, readerPolicy, mDispatcher);
- initialize();
-}
-
-InputManager::InputManager(
- const sp<InputReaderInterface>& reader,
- const sp<InputDispatcherInterface>& dispatcher) :
- mReader(reader),
- mDispatcher(dispatcher) {
+ mReader = createInputReader(readerPolicy, mDispatcher);
initialize();
}
diff --git a/services/inputflinger/InputManager.h b/services/inputflinger/InputManager.h
index d0e4cb0..1173fa1 100644
--- a/services/inputflinger/InputManager.h
+++ b/services/inputflinger/InputManager.h
@@ -22,7 +22,7 @@
*/
#include "EventHub.h"
-#include "InputReader.h"
+#include "InputReaderBase.h"
#include "InputDispatcher.h"
#include <input/Input.h>
@@ -80,15 +80,9 @@
public:
InputManager(
- const sp<EventHubInterface>& eventHub,
const sp<InputReaderPolicyInterface>& readerPolicy,
const sp<InputDispatcherPolicyInterface>& dispatcherPolicy);
- // (used for testing purposes)
- InputManager(
- const sp<InputReaderInterface>& reader,
- const sp<InputDispatcherInterface>& dispatcher);
-
virtual status_t start();
virtual status_t stop();
diff --git a/services/inputflinger/InputReader.cpp b/services/inputflinger/InputReader.cpp
index e85e6ef..9dd14dc 100644
--- a/services/inputflinger/InputReader.cpp
+++ b/services/inputflinger/InputReader.cpp
@@ -254,47 +254,6 @@
}
-// --- InputReaderConfiguration ---
-
-std::optional<DisplayViewport> InputReaderConfiguration::getDisplayViewport(
- ViewportType viewportType, const std::string& uniqueDisplayId) const {
- for (const DisplayViewport& currentViewport : mDisplays) {
- if (currentViewport.type == viewportType) {
- if (uniqueDisplayId.empty() ||
- (!uniqueDisplayId.empty() && uniqueDisplayId == currentViewport.uniqueId)) {
- return std::make_optional(currentViewport);
- }
- }
- }
- return std::nullopt;
-}
-
-void InputReaderConfiguration::setDisplayViewports(const std::vector<DisplayViewport>& viewports) {
- mDisplays = viewports;
-}
-
-void InputReaderConfiguration::dump(std::string& dump) const {
- for (const DisplayViewport& viewport : mDisplays) {
- dumpViewport(dump, viewport);
- }
-}
-
-void InputReaderConfiguration::dumpViewport(std::string& dump, const DisplayViewport& viewport)
- const {
- dump += StringPrintf(INDENT4 "%s\n", viewport.toString().c_str());
-}
-
-
-// -- TouchAffineTransformation --
-void TouchAffineTransformation::applyTo(float& x, float& y) const {
- float newX, newY;
- newX = x * x_scale + y * x_ymix + x_offset;
- newY = x * y_xmix + y * y_scale + y_offset;
-
- x = newX;
- y = newY;
-}
-
// --- InputReader ---
@@ -987,21 +946,6 @@
}
-// --- InputReaderThread ---
-
-InputReaderThread::InputReaderThread(const sp<InputReaderInterface>& reader) :
- Thread(/*canCallJava*/ true), mReader(reader) {
-}
-
-InputReaderThread::~InputReaderThread() {
-}
-
-bool InputReaderThread::threadLoop() {
- mReader->loopOnce();
- return true;
-}
-
-
// --- InputDevice ---
InputDevice::InputDevice(InputReaderContext* context, int32_t id, int32_t generation,
diff --git a/services/inputflinger/InputReader.h b/services/inputflinger/InputReader.h
index 9b0007a..1786fe8 100644
--- a/services/inputflinger/InputReader.h
+++ b/services/inputflinger/InputReader.h
@@ -20,6 +20,7 @@
#include "EventHub.h"
#include "PointerControllerInterface.h"
#include "InputListener.h"
+#include "InputReaderBase.h"
#include <input/DisplayViewport.h>
#include <input/Input.h>
@@ -28,314 +29,20 @@
#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/BitSet.h>
-#include <utils/SortedVector.h>
#include <optional>
#include <stddef.h>
#include <unistd.h>
#include <vector>
-// 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.
- std::vector<std::string> 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) { }
-
- std::optional<DisplayViewport> getDisplayViewport(ViewportType viewportType,
- const std::string& uniqueDisplayId) const;
- void setDisplayViewports(const std::vector<DisplayViewport>& viewports);
-
-
- void dump(std::string& dump) const;
- void dumpViewport(std::string& dump, const DisplayViewport& viewport) const;
-
-private:
- std::vector<DisplayViewport> mDisplays;
-};
-
-
-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 std::string getDeviceAlias(const InputDeviceIdentifier& identifier) = 0;
-
- /* Gets the affine calibration associated with the specified device. */
- virtual TouchAffineTransformation getTouchAffineTransformation(
- const std::string& 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(std::string& 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. */
@@ -527,19 +234,6 @@
};
-/* 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:
diff --git a/services/inputflinger/InputReaderBase.cpp b/services/inputflinger/InputReaderBase.cpp
new file mode 100644
index 0000000..17a116e
--- /dev/null
+++ b/services/inputflinger/InputReaderBase.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2018 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 "InputReaderBase"
+
+//#define LOG_NDEBUG 0
+
+#include "InputReaderBase.h"
+
+#include <android/log.h>
+#include <android-base/stringprintf.h>
+
+#define INDENT " "
+#define INDENT2 " "
+#define INDENT3 " "
+#define INDENT4 " "
+#define INDENT5 " "
+
+using android::base::StringPrintf;
+
+namespace android {
+
+// --- InputReaderThread ---
+
+InputReaderThread::InputReaderThread(const sp<InputReaderInterface>& reader) :
+ Thread(/*canCallJava*/ true), mReader(reader) {
+}
+
+InputReaderThread::~InputReaderThread() {
+}
+
+bool InputReaderThread::threadLoop() {
+ mReader->loopOnce();
+ return true;
+}
+
+// --- InputReaderConfiguration ---
+
+std::optional<DisplayViewport> InputReaderConfiguration::getDisplayViewport(
+ ViewportType viewportType, const std::string& uniqueDisplayId) const {
+ for (const DisplayViewport& currentViewport : mDisplays) {
+ if (currentViewport.type == viewportType) {
+ if (uniqueDisplayId.empty() ||
+ (!uniqueDisplayId.empty() && uniqueDisplayId == currentViewport.uniqueId)) {
+ return std::make_optional(currentViewport);
+ }
+ }
+ }
+ return std::nullopt;
+}
+
+void InputReaderConfiguration::setDisplayViewports(const std::vector<DisplayViewport>& viewports) {
+ mDisplays = viewports;
+}
+
+void InputReaderConfiguration::dump(std::string& dump) const {
+ for (const DisplayViewport& viewport : mDisplays) {
+ dumpViewport(dump, viewport);
+ }
+}
+
+void InputReaderConfiguration::dumpViewport(std::string& dump, const DisplayViewport& viewport)
+ const {
+ dump += StringPrintf(INDENT4 "%s\n", viewport.toString().c_str());
+}
+
+
+// -- TouchAffineTransformation --
+void TouchAffineTransformation::applyTo(float& x, float& y) const {
+ float newX, newY;
+ newX = x * x_scale + y * x_ymix + x_offset;
+ newY = x * y_xmix + y * y_scale + y_offset;
+
+ x = newX;
+ y = newY;
+}
+
+} // namespace android
\ No newline at end of file
diff --git a/services/inputflinger/InputReaderFactory.cpp b/services/inputflinger/InputReaderFactory.cpp
new file mode 100644
index 0000000..3534f6b
--- /dev/null
+++ b/services/inputflinger/InputReaderFactory.cpp
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2018 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.
+ */
+
+#include "InputReaderFactory.h"
+#include "InputReader.h"
+
+namespace android {
+
+sp<InputReaderInterface> createInputReader(
+ const sp<InputReaderPolicyInterface>& policy,
+ const sp<InputListenerInterface>& listener) {
+ return new InputReader(new EventHub(), policy, listener);
+}
+
+} // namespace android
\ No newline at end of file
diff --git a/services/inputflinger/EventHub.h b/services/inputflinger/include/EventHub.h
similarity index 100%
rename from services/inputflinger/EventHub.h
rename to services/inputflinger/include/EventHub.h
diff --git a/services/inputflinger/InputListener.h b/services/inputflinger/include/InputListener.h
similarity index 100%
rename from services/inputflinger/InputListener.h
rename to services/inputflinger/include/InputListener.h
diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
new file mode 100644
index 0000000..fff8480
--- /dev/null
+++ b/services/inputflinger/include/InputReaderBase.h
@@ -0,0 +1,342 @@
+/*
+ * Copyright (C) 2018 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_BASE_H
+#define _UI_INPUT_READER_BASE_H
+
+#include "PointerControllerInterface.h"
+
+#include <input/Input.h>
+#include <input/InputDevice.h>
+#include <input/DisplayViewport.h>
+#include <input/VelocityControl.h>
+#include <input/VelocityTracker.h>
+#include <utils/KeyedVector.h>
+#include <utils/Thread.h>
+#include <utils/RefBase.h>
+#include <utils/SortedVector.h>
+
+#include <optional>
+#include <stddef.h>
+#include <unistd.h>
+#include <vector>
+
+// 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 {
+
+/* 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(std::string& 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;
+};
+
+/* 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();
+};
+
+/*
+ * 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.
+ std::vector<std::string> 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) { }
+
+ std::optional<DisplayViewport> getDisplayViewport(ViewportType viewportType,
+ const std::string& uniqueDisplayId) const;
+ void setDisplayViewports(const std::vector<DisplayViewport>& viewports);
+
+
+ void dump(std::string& dump) const;
+ void dumpViewport(std::string& dump, const DisplayViewport& viewport) const;
+
+private:
+ std::vector<DisplayViewport> mDisplays;
+};
+
+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 std::string getDeviceAlias(const InputDeviceIdentifier& identifier) = 0;
+
+ /* Gets the affine calibration associated with the specified device. */
+ virtual TouchAffineTransformation getTouchAffineTransformation(
+ const std::string& inputDeviceDescriptor, int32_t surfaceRotation) = 0;
+};
+
+} // namespace android
+
+#endif // _UI_INPUT_READER_COMMON_H
\ No newline at end of file
diff --git a/services/inputflinger/include/InputReaderFactory.h b/services/inputflinger/include/InputReaderFactory.h
new file mode 100644
index 0000000..9db6233
--- /dev/null
+++ b/services/inputflinger/include/InputReaderFactory.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2018 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.
+ */
+
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+class InputReaderInterface;
+class InputReaderPolicyInterface;
+class InputListenerInterface;
+
+sp<InputReaderInterface> createInputReader(
+ const sp<InputReaderPolicyInterface>& policy,
+ const sp<InputListenerInterface>& listener);
+
+} // namespace android
diff --git a/services/inputflinger/PointerControllerInterface.h b/services/inputflinger/include/PointerControllerInterface.h
similarity index 100%
rename from services/inputflinger/PointerControllerInterface.h
rename to services/inputflinger/include/PointerControllerInterface.h
diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index ea42855..389a57c 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp
@@ -24,6 +24,8 @@
"libui",
"libinput",
"libinputflinger",
+ "libinputreader",
+ "libinputflinger_base",
"libinputservice",
],
}