142 lines
6.2 KiB
C++
142 lines
6.2 KiB
C++
/*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <chrono>
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include <gui/constants.h>
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#include <input/Input.h>
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#include <input/MotionPredictor.h>
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using namespace std::literals::chrono_literals;
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namespace android {
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using ::testing::IsEmpty;
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using ::testing::SizeIs;
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using ::testing::UnorderedElementsAre;
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constexpr int32_t DOWN = AMOTION_EVENT_ACTION_DOWN;
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constexpr int32_t MOVE = AMOTION_EVENT_ACTION_MOVE;
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constexpr int32_t UP = AMOTION_EVENT_ACTION_UP;
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constexpr nsecs_t NSEC_PER_MSEC = 1'000'000;
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static MotionEvent getMotionEvent(int32_t action, float x, float y,
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std::chrono::nanoseconds eventTime, int32_t deviceId = 0) {
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MotionEvent event;
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constexpr size_t pointerCount = 1;
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std::vector<PointerProperties> pointerProperties;
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std::vector<PointerCoords> pointerCoords;
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for (size_t i = 0; i < pointerCount; i++) {
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PointerProperties properties;
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properties.clear();
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properties.id = i;
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properties.toolType = ToolType::STYLUS;
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pointerProperties.push_back(properties);
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PointerCoords coords;
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coords.clear();
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coords.setAxisValue(AMOTION_EVENT_AXIS_X, x);
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coords.setAxisValue(AMOTION_EVENT_AXIS_Y, y);
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pointerCoords.push_back(coords);
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}
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ui::Transform identityTransform;
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event.initialize(InputEvent::nextId(), deviceId, AINPUT_SOURCE_STYLUS, ADISPLAY_ID_DEFAULT, {0},
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action, /*actionButton=*/0, /*flags=*/0, AMOTION_EVENT_EDGE_FLAG_NONE,
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AMETA_NONE, /*buttonState=*/0, MotionClassification::NONE, identityTransform,
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/*xPrecision=*/0.1,
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/*yPrecision=*/0.2, /*xCursorPosition=*/280, /*yCursorPosition=*/540,
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identityTransform, /*downTime=*/100, eventTime.count(), pointerCount,
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pointerProperties.data(), pointerCoords.data());
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return event;
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}
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TEST(MotionPredictorTest, IsPredictionAvailable) {
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MotionPredictor predictor(/*predictionTimestampOffsetNanos=*/0,
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[]() { return true /*enable prediction*/; });
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ASSERT_TRUE(predictor.isPredictionAvailable(/*deviceId=*/1, AINPUT_SOURCE_STYLUS));
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ASSERT_FALSE(predictor.isPredictionAvailable(/*deviceId=*/1, AINPUT_SOURCE_TOUCHSCREEN));
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}
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TEST(MotionPredictorTest, Offset) {
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MotionPredictor predictor(/*predictionTimestampOffsetNanos=*/1,
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[]() { return true /*enable prediction*/; });
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predictor.record(getMotionEvent(DOWN, 0, 1, 30ms));
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predictor.record(getMotionEvent(MOVE, 0, 2, 35ms));
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std::unique_ptr<MotionEvent> predicted = predictor.predict(40 * NSEC_PER_MSEC);
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ASSERT_NE(nullptr, predicted);
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ASSERT_GE(predicted->getEventTime(), 41);
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}
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TEST(MotionPredictorTest, FollowsGesture) {
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MotionPredictor predictor(/*predictionTimestampOffsetNanos=*/0,
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[]() { return true /*enable prediction*/; });
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// MOVE without a DOWN is ignored.
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predictor.record(getMotionEvent(MOVE, 1, 3, 10ms));
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EXPECT_EQ(nullptr, predictor.predict(20 * NSEC_PER_MSEC));
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predictor.record(getMotionEvent(DOWN, 2, 5, 20ms));
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predictor.record(getMotionEvent(MOVE, 2, 7, 30ms));
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predictor.record(getMotionEvent(MOVE, 3, 9, 40ms));
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EXPECT_NE(nullptr, predictor.predict(50 * NSEC_PER_MSEC));
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predictor.record(getMotionEvent(UP, 4, 11, 50ms));
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EXPECT_EQ(nullptr, predictor.predict(20 * NSEC_PER_MSEC));
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}
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TEST(MotionPredictorTest, MultipleDevicesNotSupported) {
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MotionPredictor predictor(/*predictionTimestampOffsetNanos=*/0,
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[]() { return true /*enable prediction*/; });
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ASSERT_TRUE(predictor.record(getMotionEvent(DOWN, 1, 3, 0ms, /*deviceId=*/0)).ok());
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ASSERT_TRUE(predictor.record(getMotionEvent(MOVE, 1, 3, 10ms, /*deviceId=*/0)).ok());
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ASSERT_TRUE(predictor.record(getMotionEvent(MOVE, 2, 5, 20ms, /*deviceId=*/0)).ok());
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ASSERT_TRUE(predictor.record(getMotionEvent(MOVE, 3, 7, 30ms, /*deviceId=*/0)).ok());
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ASSERT_FALSE(predictor.record(getMotionEvent(DOWN, 100, 300, 40ms, /*deviceId=*/1)).ok());
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ASSERT_FALSE(predictor.record(getMotionEvent(MOVE, 100, 300, 50ms, /*deviceId=*/1)).ok());
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}
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TEST(MotionPredictorTest, IndividualGesturesFromDifferentDevicesAreSupported) {
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MotionPredictor predictor(/*predictionTimestampOffsetNanos=*/0,
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[]() { return true /*enable prediction*/; });
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ASSERT_TRUE(predictor.record(getMotionEvent(DOWN, 1, 3, 0ms, /*deviceId=*/0)).ok());
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ASSERT_TRUE(predictor.record(getMotionEvent(MOVE, 1, 3, 10ms, /*deviceId=*/0)).ok());
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ASSERT_TRUE(predictor.record(getMotionEvent(MOVE, 2, 5, 20ms, /*deviceId=*/0)).ok());
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ASSERT_TRUE(predictor.record(getMotionEvent(UP, 2, 5, 30ms, /*deviceId=*/0)).ok());
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// Now, send a gesture from a different device. Since we have no active gesture, the new gesture
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// should be processed correctly.
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ASSERT_TRUE(predictor.record(getMotionEvent(DOWN, 100, 300, 40ms, /*deviceId=*/1)).ok());
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ASSERT_TRUE(predictor.record(getMotionEvent(MOVE, 100, 300, 50ms, /*deviceId=*/1)).ok());
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}
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TEST(MotionPredictorTest, FlagDisablesPrediction) {
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MotionPredictor predictor(/*predictionTimestampOffsetNanos=*/0,
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[]() { return false /*disable prediction*/; });
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predictor.record(getMotionEvent(DOWN, 0, 1, 30ms));
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predictor.record(getMotionEvent(MOVE, 0, 1, 35ms));
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std::unique_ptr<MotionEvent> predicted = predictor.predict(40 * NSEC_PER_MSEC);
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ASSERT_EQ(nullptr, predicted);
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ASSERT_FALSE(predictor.isPredictionAvailable(/*deviceId=*/1, AINPUT_SOURCE_STYLUS));
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ASSERT_FALSE(predictor.isPredictionAvailable(/*deviceId=*/1, AINPUT_SOURCE_TOUCHSCREEN));
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}
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} // namespace android
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