1 /*
2 * Copyright 2023 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "MultiTouchMotionAccumulator.h"
18 #include "InputMapperTest.h"
19
20 namespace android {
21
22 class MultiTouchMotionAccumulatorTest : public InputMapperUnitTest {
23 protected:
24 static constexpr size_t SLOT_COUNT = 8;
25
SetUp()26 void SetUp() override {
27 InputMapperUnitTest::SetUp();
28 createDevice();
29 }
30
31 MultiTouchMotionAccumulator mMotionAccumulator;
32
processMotionEvent(int32_t type,int32_t code,int32_t value)33 void processMotionEvent(int32_t type, int32_t code, int32_t value) {
34 RawEvent event;
35 event.when = ARBITRARY_TIME;
36 event.readTime = READ_TIME;
37 event.deviceId = EVENTHUB_ID;
38 event.type = type;
39 event.code = code;
40 event.value = value;
41 mMotionAccumulator.process(event);
42 }
43 };
44
TEST_F(MultiTouchMotionAccumulatorTest,ActiveSlotCountUsingSlotsProtocol)45 TEST_F(MultiTouchMotionAccumulatorTest, ActiveSlotCountUsingSlotsProtocol) {
46 mMotionAccumulator.configure(*mDeviceContext, SLOT_COUNT, /*usingSlotsProtocol=*/true);
47 // We expect active slot count to match the touches being tracked
48 // first touch
49 processMotionEvent(EV_ABS, ABS_MT_SLOT, 0);
50 processMotionEvent(EV_ABS, ABS_MT_TRACKING_ID, 123);
51 processMotionEvent(EV_SYN, SYN_REPORT, 0);
52 ASSERT_EQ(1u, mMotionAccumulator.getActiveSlotsCount());
53
54 // second touch
55 processMotionEvent(EV_ABS, ABS_MT_SLOT, 1);
56 processMotionEvent(EV_ABS, ABS_MT_TRACKING_ID, 456);
57 processMotionEvent(EV_SYN, SYN_REPORT, 0);
58 ASSERT_EQ(2u, mMotionAccumulator.getActiveSlotsCount());
59
60 // second lifted
61 processMotionEvent(EV_ABS, ABS_MT_TRACKING_ID, -1);
62 processMotionEvent(EV_SYN, SYN_REPORT, 0);
63 ASSERT_EQ(1u, mMotionAccumulator.getActiveSlotsCount());
64
65 // first lifted
66 processMotionEvent(EV_ABS, ABS_MT_SLOT, 0);
67 processMotionEvent(EV_ABS, ABS_MT_TRACKING_ID, -1);
68 processMotionEvent(EV_SYN, SYN_REPORT, 0);
69 ASSERT_EQ(0u, mMotionAccumulator.getActiveSlotsCount());
70 }
71
TEST_F(MultiTouchMotionAccumulatorTest,ActiveSlotCountNotUsingSlotsProtocol)72 TEST_F(MultiTouchMotionAccumulatorTest, ActiveSlotCountNotUsingSlotsProtocol) {
73 mMotionAccumulator.configure(*mDeviceContext, SLOT_COUNT, /*usingSlotsProtocol=*/false);
74
75 // first touch
76 processMotionEvent(EV_ABS, ABS_MT_POSITION_X, 0);
77 processMotionEvent(EV_ABS, ABS_MT_POSITION_Y, 0);
78 processMotionEvent(EV_SYN, SYN_MT_REPORT, 0);
79 ASSERT_EQ(1u, mMotionAccumulator.getActiveSlotsCount());
80
81 // second touch
82 processMotionEvent(EV_ABS, ABS_MT_POSITION_X, 50);
83 processMotionEvent(EV_ABS, ABS_MT_POSITION_Y, 50);
84 processMotionEvent(EV_SYN, SYN_MT_REPORT, 0);
85 ASSERT_EQ(2u, mMotionAccumulator.getActiveSlotsCount());
86
87 // reset
88 mMotionAccumulator.finishSync();
89 ASSERT_EQ(0u, mMotionAccumulator.getActiveSlotsCount());
90 }
91
92 } // namespace android
93