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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/events/ozone/evdev/touch_noise/far_apart_taps_touch_noise_filter.h" | 5 #include "ui/events/ozone/evdev/touch_noise/far_apart_taps_touch_noise_filter.h" |
6 | 6 |
7 #include <stddef.h> | 7 #include <stddef.h> |
8 | 8 |
9 #include <cmath> | 9 #include <cmath> |
10 | 10 |
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36 int Distance2(int x1, int y1, int x2, int y2) { | 36 int Distance2(int x1, int y1, int x2, int y2) { |
37 int offset_x = x2 - x1; | 37 int offset_x = x2 - x1; |
38 int offset_y = y2 - y1; | 38 int offset_y = y2 - y1; |
39 return offset_x * offset_x + offset_y * offset_y; | 39 return offset_x * offset_x + offset_y * offset_y; |
40 } | 40 } |
41 | 41 |
42 } // namespace | 42 } // namespace |
43 | 43 |
44 void FarApartTapsTouchNoiseFilter::Filter( | 44 void FarApartTapsTouchNoiseFilter::Filter( |
45 const std::vector<InProgressTouchEvdev>& touches, | 45 const std::vector<InProgressTouchEvdev>& touches, |
46 base::TimeDelta time, | 46 base::TimeTicks time, |
47 std::bitset<kNumTouchEvdevSlots>* slots_with_noise) { | 47 std::bitset<kNumTouchEvdevSlots>* slots_with_noise) { |
48 // Remove old taps. | 48 // Remove old taps. |
49 base::TimeDelta tap_cutoff = | 49 base::TimeTicks tap_cutoff = |
50 time - base::TimeDelta::FromMilliseconds(kMaxTapDeltaMs); | 50 time - base::TimeDelta::FromMilliseconds(kMaxTapDeltaMs); |
51 for (size_t i = 0; i < arraysize(tracked_taps_); ++i) { | 51 for (size_t i = 0; i < arraysize(tracked_taps_); ++i) { |
52 if (tracked_taps_[i].start < tap_cutoff) | 52 if (tracked_taps_[i].start < tap_cutoff) |
53 tracked_taps_[i].Invalidate(); | 53 tracked_taps_[i].Invalidate(); |
54 } | 54 } |
55 | 55 |
56 for (const InProgressTouchEvdev& touch : touches) { | 56 for (const InProgressTouchEvdev& touch : touches) { |
57 // Only look at slots with active touches. | 57 // Only look at slots with active touches. |
58 if (!touch.touching && !touch.was_touching) | 58 if (!touch.touching && !touch.was_touching) |
59 continue; | 59 continue; |
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100 slots_with_noise->set(slot); | 100 slots_with_noise->set(slot); |
101 } | 101 } |
102 } | 102 } |
103 | 103 |
104 if (!touch.touching) | 104 if (!touch.touching) |
105 tracked_taps_[slot].Invalidate(); | 105 tracked_taps_[slot].Invalidate(); |
106 } | 106 } |
107 } | 107 } |
108 | 108 |
109 } // namespace ui | 109 } // namespace ui |
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