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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CONTENT_BROWSER_DEVICE_SENSORS_INERTIAL_SENSOR_CONSTS_H_ | |
6 #define CONTENT_BROWSER_DEVICE_SENSORS_INERTIAL_SENSOR_CONSTS_H_ | |
7 | |
8 #include "base/time/time.h" | |
9 | |
10 namespace content { | |
11 | |
12 // Constants related to the Device {Motion|Orientation|Light} APIs. | |
13 | |
14 enum ConsumerType { | |
15 CONSUMER_TYPE_MOTION = 1 << 0, | |
16 CONSUMER_TYPE_ORIENTATION = 1 << 1, | |
17 CONSUMER_TYPE_LIGHT = 1 << 2, | |
18 }; | |
19 | |
20 // Specifies the sampling rate for sensor data updates. | |
21 // Note that when changing this value it is desirable to have an adequate | |
22 // matching value |DeviceSensorEventPump::kDefaultPumpFrequencyHz| in | |
23 // content/renderer/device_orientation/device_sensor_event_pump.cc. | |
24 const int kInertialSensorSamplingRateHz = 60; | |
25 const int kInertialSensorIntervalMicroseconds = | |
26 base::Time::kMicrosecondsPerSecond / kInertialSensorSamplingRateHz; | |
27 | |
28 // Corresponding |kDefaultLightPumpFrequencyHz| is in | |
29 // content/renderer/device_sensors/device_light_event_pump.cc. | |
30 const int kLightSensorSamplingRateHz = 5; | |
31 const int kLightSensorIntervalMicroseconds = | |
32 base::Time::kMicrosecondsPerSecond / kLightSensorSamplingRateHz; | |
33 | |
34 } // namespace content | |
35 | |
36 #endif // CONTENT_BROWSER_DEVICE_SENSORS_INERTIAL_SENSOR_CONSTS_H_ | |
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