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/*
* Copyright (C) 2019 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 <benchmark/benchmark.h>
#include <android/os/IInputConstants.h>
#include <binder/Binder.h>
#include <gui/constants.h>
#include "../dispatcher/InputDispatcher.h"
using android::gui::WindowInfo;
using android::gui::WindowInfoHandle;
using android::os::IInputConstants;
using android::os::InputEventInjectionResult;
using android::os::InputEventInjectionSync;
namespace android::inputdispatcher {
// An arbitrary device id.
static const int32_t DEVICE_ID = 1;
// An arbitrary injector pid / uid pair that has permission to inject events.
static const int32_t INJECTOR_PID = 999;
static const int32_t INJECTOR_UID = 1001;
static constexpr std::chrono::duration INJECT_EVENT_TIMEOUT = 5s;
static constexpr std::chrono::nanoseconds DISPATCHING_TIMEOUT = 100ms;
static nsecs_t now() {
return systemTime(SYSTEM_TIME_MONOTONIC);
}
// --- FakeInputDispatcherPolicy ---
class FakeInputDispatcherPolicy : public InputDispatcherPolicyInterface {
public:
FakeInputDispatcherPolicy() {}
protected:
virtual ~FakeInputDispatcherPolicy() {}
private:
void notifyConfigurationChanged(nsecs_t) override {}
void notifyNoFocusedWindowAnr(
const std::shared_ptr<InputApplicationHandle>& applicationHandle) override {
ALOGE("There is no focused window for %s", applicationHandle->getName().c_str());
}
void notifyWindowUnresponsive(const sp<IBinder>& connectionToken,
const std::string& reason) override {
ALOGE("Window is not responding: %s", reason.c_str());
}
void notifyWindowResponsive(const sp<IBinder>& connectionToken) override {}
void notifyMonitorUnresponsive(int32_t pid, const std::string& reason) override {
ALOGE("Monitor is not responding: %s", reason.c_str());
}
void notifyMonitorResponsive(int32_t pid) override {}
void notifyInputChannelBroken(const sp<IBinder>&) override {}
void notifyFocusChanged(const sp<IBinder>&, const sp<IBinder>&) override {}
void notifySensorEvent(int32_t deviceId, InputDeviceSensorType sensorType,
InputDeviceSensorAccuracy accuracy, nsecs_t timestamp,
const std::vector<float>& values) override {}
void notifySensorAccuracy(int32_t deviceId, InputDeviceSensorType sensorType,
InputDeviceSensorAccuracy accuracy) override {}
void notifyVibratorState(int32_t deviceId, bool isOn) override {}
void notifyUntrustedTouch(const std::string& obscuringPackage) override {}
void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) override {
*outConfig = mConfig;
}
bool filterInputEvent(const InputEvent* inputEvent, uint32_t policyFlags) override {
return true;
}
void interceptKeyBeforeQueueing(const KeyEvent*, uint32_t&) override {}
void interceptMotionBeforeQueueing(int32_t, nsecs_t, uint32_t&) override {}
nsecs_t interceptKeyBeforeDispatching(const sp<IBinder>&, const KeyEvent*, uint32_t) override {
return 0;
}
bool dispatchUnhandledKey(const sp<IBinder>&, const KeyEvent*, uint32_t, KeyEvent*) override {
return false;
}
void notifySwitch(nsecs_t, uint32_t, uint32_t, uint32_t) override {}
void pokeUserActivity(nsecs_t, int32_t, int32_t) override {}
bool checkInjectEventsPermissionNonReentrant(int32_t, int32_t) override { return false; }
void onPointerDownOutsideFocus(const sp<IBinder>& newToken) override {}
void setPointerCapture(const PointerCaptureRequest&) override {}
void notifyDropWindow(const sp<IBinder>&, float x, float y) override {}
InputDispatcherConfiguration mConfig;
};
class FakeApplicationHandle : public InputApplicationHandle {
public:
FakeApplicationHandle() {}
virtual ~FakeApplicationHandle() {}
virtual bool updateInfo() {
mInfo.dispatchingTimeoutMillis =
std::chrono::duration_cast<std::chrono::milliseconds>(DISPATCHING_TIMEOUT).count();
return true;
}
};
class FakeInputReceiver {
public:
void consumeEvent() {
uint32_t consumeSeq = 0;
InputEvent* event;
std::chrono::time_point start = std::chrono::steady_clock::now();
status_t result = WOULD_BLOCK;
while (result == WOULD_BLOCK) {
std::chrono::duration elapsed = std::chrono::steady_clock::now() - start;
if (elapsed > 10ms) {
ALOGE("Waited too long for consumer to produce an event, giving up");
break;
}
result = mConsumer->consume(&mEventFactory, true /*consumeBatches*/, -1, &consumeSeq,
&event);
}
if (result != OK) {
ALOGE("Received result = %d from consume()", result);
}
result = mConsumer->sendFinishedSignal(consumeSeq, true);
if (result != OK) {
ALOGE("Received result = %d from sendFinishedSignal", result);
}
}
protected:
explicit FakeInputReceiver(const sp<InputDispatcher>& dispatcher, const std::string name)
: mDispatcher(dispatcher) {
mClientChannel = *mDispatcher->createInputChannel(name);
mConsumer = std::make_unique<InputConsumer>(mClientChannel);
}
virtual ~FakeInputReceiver() {}
sp<InputDispatcher> mDispatcher;
std::shared_ptr<InputChannel> mClientChannel;
std::unique_ptr<InputConsumer> mConsumer;
PreallocatedInputEventFactory mEventFactory;
};
class FakeWindowHandle : public WindowInfoHandle, public FakeInputReceiver {
public:
static const int32_t WIDTH = 200;
static const int32_t HEIGHT = 200;
FakeWindowHandle(const std::shared_ptr<InputApplicationHandle>& inputApplicationHandle,
const sp<InputDispatcher>& dispatcher, const std::string name)
: FakeInputReceiver(dispatcher, name), mFrame(Rect(0, 0, WIDTH, HEIGHT)) {
inputApplicationHandle->updateInfo();
updateInfo();
mInfo.applicationInfo = *inputApplicationHandle->getInfo();
}
void updateInfo() {
mInfo.token = mClientChannel->getConnectionToken();
mInfo.name = "FakeWindowHandle";
mInfo.type = WindowInfo::Type::APPLICATION;
mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT;
mInfo.frameLeft = mFrame.left;
mInfo.frameTop = mFrame.top;
mInfo.frameRight = mFrame.right;
mInfo.frameBottom = mFrame.bottom;
mInfo.globalScaleFactor = 1.0;
mInfo.touchableRegion.clear();
mInfo.addTouchableRegion(mFrame);
mInfo.visible = true;
mInfo.focusable = true;
mInfo.hasWallpaper = false;
mInfo.paused = false;
mInfo.ownerPid = INJECTOR_PID;
mInfo.ownerUid = INJECTOR_UID;
mInfo.displayId = ADISPLAY_ID_DEFAULT;
}
protected:
Rect mFrame;
};
static MotionEvent generateMotionEvent() {
PointerProperties pointerProperties[1];
PointerCoords pointerCoords[1];
pointerProperties[0].clear();
pointerProperties[0].id = 0;
pointerProperties[0].toolType = AMOTION_EVENT_TOOL_TYPE_FINGER;
pointerCoords[0].clear();
pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 100);
pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 100);
const nsecs_t currentTime = now();
ui::Transform identityTransform;
MotionEvent event;
event.initialize(IInputConstants::INVALID_INPUT_EVENT_ID, DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
ADISPLAY_ID_DEFAULT, INVALID_HMAC, AMOTION_EVENT_ACTION_DOWN,
/* actionButton */ 0, /* flags */ 0,
/* edgeFlags */ 0, AMETA_NONE, /* buttonState */ 0, MotionClassification::NONE,
identityTransform, /* xPrecision */ 0,
/* yPrecision */ 0, AMOTION_EVENT_INVALID_CURSOR_POSITION,
AMOTION_EVENT_INVALID_CURSOR_POSITION, ui::Transform::ROT_0,
INVALID_DISPLAY_SIZE, INVALID_DISPLAY_SIZE, currentTime, currentTime,
/*pointerCount*/ 1, pointerProperties, pointerCoords);
return event;
}
static NotifyMotionArgs generateMotionArgs() {
PointerProperties pointerProperties[1];
PointerCoords pointerCoords[1];
pointerProperties[0].clear();
pointerProperties[0].id = 0;
pointerProperties[0].toolType = AMOTION_EVENT_TOOL_TYPE_FINGER;
pointerCoords[0].clear();
pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 100);
pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 100);
const nsecs_t currentTime = now();
// Define a valid motion event.
NotifyMotionArgs args(IInputConstants::INVALID_INPUT_EVENT_ID, currentTime, currentTime,
DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
POLICY_FLAG_PASS_TO_USER, AMOTION_EVENT_ACTION_DOWN,
/* actionButton */ 0, /* flags */ 0, AMETA_NONE, /* buttonState */ 0,
MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
pointerProperties, pointerCoords,
/* xPrecision */ 0, /* yPrecision */ 0,
AMOTION_EVENT_INVALID_CURSOR_POSITION,
AMOTION_EVENT_INVALID_CURSOR_POSITION, currentTime, /* videoFrames */ {});
return args;
}
static void benchmarkNotifyMotion(benchmark::State& state) {
// Create dispatcher
sp<FakeInputDispatcherPolicy> fakePolicy = new FakeInputDispatcherPolicy();
sp<InputDispatcher> dispatcher = new InputDispatcher(fakePolicy);
dispatcher->setInputDispatchMode(/*enabled*/ true, /*frozen*/ false);
dispatcher->start();
// Create a window that will receive motion events
std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
sp<FakeWindowHandle> window = new FakeWindowHandle(application, dispatcher, "Fake Window");
dispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window}}});
NotifyMotionArgs motionArgs = generateMotionArgs();
for (auto _ : state) {
// Send ACTION_DOWN
motionArgs.action = AMOTION_EVENT_ACTION_DOWN;
motionArgs.downTime = now();
motionArgs.eventTime = motionArgs.downTime;
dispatcher->notifyMotion(&motionArgs);
// Send ACTION_UP
motionArgs.action = AMOTION_EVENT_ACTION_UP;
motionArgs.eventTime = now();
dispatcher->notifyMotion(&motionArgs);
window->consumeEvent();
window->consumeEvent();
}
dispatcher->stop();
}
static void benchmarkInjectMotion(benchmark::State& state) {
// Create dispatcher
sp<FakeInputDispatcherPolicy> fakePolicy = new FakeInputDispatcherPolicy();
sp<InputDispatcher> dispatcher = new InputDispatcher(fakePolicy);
dispatcher->setInputDispatchMode(/*enabled*/ true, /*frozen*/ false);
dispatcher->start();
// Create a window that will receive motion events
std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
sp<FakeWindowHandle> window = new FakeWindowHandle(application, dispatcher, "Fake Window");
dispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window}}});
for (auto _ : state) {
MotionEvent event = generateMotionEvent();
// Send ACTION_DOWN
dispatcher->injectInputEvent(&event, INJECTOR_PID, INJECTOR_UID,
InputEventInjectionSync::NONE, INJECT_EVENT_TIMEOUT,
POLICY_FLAG_FILTERED | POLICY_FLAG_PASS_TO_USER);
// Send ACTION_UP
event.setAction(AMOTION_EVENT_ACTION_UP);
dispatcher->injectInputEvent(&event, INJECTOR_PID, INJECTOR_UID,
InputEventInjectionSync::NONE, INJECT_EVENT_TIMEOUT,
POLICY_FLAG_FILTERED | POLICY_FLAG_PASS_TO_USER);
window->consumeEvent();
window->consumeEvent();
}
dispatcher->stop();
}
BENCHMARK(benchmarkNotifyMotion);
BENCHMARK(benchmarkInjectMotion);
} // namespace android::inputdispatcher
BENCHMARK_MAIN();