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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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