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| 1 // Copyright 2013 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 #include "data_fetcher_shared_memory.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/metrics/histogram.h" | |
| 9 | |
| 10 namespace { | |
| 11 | |
| 12 static bool SetMotionBuffer(content::DeviceMotionHardwareBuffer* buffer, | |
| 13 bool enabled) { | |
| 14 if (!buffer) | |
| 15 return false; | |
| 16 buffer->seqlock.WriteBegin(); | |
| 17 buffer->data.allAvailableSensorsAreActive = enabled; | |
| 18 buffer->seqlock.WriteEnd(); | |
| 19 return true; | |
| 20 } | |
| 21 | |
| 22 static bool SetOrientationBuffer( | |
| 23 content::DeviceOrientationHardwareBuffer* buffer, bool enabled) { | |
| 24 if (!buffer) | |
| 25 return false; | |
| 26 buffer->seqlock.WriteBegin(); | |
| 27 buffer->data.allAvailableSensorsAreActive = enabled; | |
| 28 buffer->seqlock.WriteEnd(); | |
| 29 return true; | |
| 30 } | |
| 31 | |
| 32 } | |
| 33 | |
| 34 namespace content { | |
| 35 | |
| 36 DataFetcherSharedMemory::DataFetcherSharedMemory() | |
| 37 : motion_buffer_(NULL), orientation_buffer_(NULL) { | |
| 38 } | |
| 39 | |
| 40 DataFetcherSharedMemory::~DataFetcherSharedMemory() { | |
| 41 } | |
| 42 | |
| 43 bool DataFetcherSharedMemory::Start(ConsumerType consumer_type, void* buffer) { | |
| 44 DCHECK(buffer); | |
| 45 | |
| 46 switch (consumer_type) { | |
| 47 case CONSUMER_TYPE_MOTION: | |
| 48 motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer); | |
| 49 UMA_HISTOGRAM_BOOLEAN("InertialSensor.MotionDefaultAvailable", false); | |
| 50 return SetMotionBuffer(motion_buffer_, true); | |
| 51 case CONSUMER_TYPE_ORIENTATION: | |
| 52 orientation_buffer_ = | |
| 53 static_cast<DeviceOrientationHardwareBuffer*>(buffer); | |
| 54 UMA_HISTOGRAM_BOOLEAN("InertialSensor.OrientationDefaultAvailable", | |
| 55 false); | |
| 56 return SetOrientationBuffer(orientation_buffer_, true); | |
| 57 default: | |
| 58 NOTREACHED(); | |
| 59 } | |
| 60 return false; | |
| 61 } | |
| 62 | |
| 63 bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) { | |
| 64 | |
| 65 switch (consumer_type) { | |
| 66 case CONSUMER_TYPE_MOTION: | |
| 67 return SetMotionBuffer(motion_buffer_, false); | |
| 68 case CONSUMER_TYPE_ORIENTATION: | |
| 69 return SetOrientationBuffer(orientation_buffer_, false); | |
| 70 default: | |
| 71 NOTREACHED(); | |
| 72 } | |
| 73 return false; | |
| 74 } | |
| 75 | |
| 76 } // namespace content | |
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Chromium Code Reviews
Issue 236833003:
Rename device_orientation to device_sensors (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master