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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 "content/browser/device_sensors/data_fetcher_shared_memory.h" | 5 #include "device/device_sensors/data_fetcher_shared_memory.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "base/metrics/histogram.h" | 8 #include "base/metrics/histogram.h" |
| 9 | 9 |
| 10 namespace { | 10 namespace { |
| 11 | 11 |
| 12 bool SetMotionBuffer(content::DeviceMotionHardwareBuffer* buffer, | 12 bool SetMotionBuffer(device::DeviceMotionHardwareBuffer* buffer, bool enabled) { |
| 13 bool enabled) { | |
| 14 if (!buffer) | 13 if (!buffer) |
| 15 return false; | 14 return false; |
| 16 buffer->seqlock.WriteBegin(); | 15 buffer->seqlock.WriteBegin(); |
| 17 buffer->data.allAvailableSensorsAreActive = enabled; | 16 buffer->data.allAvailableSensorsAreActive = enabled; |
| 18 buffer->seqlock.WriteEnd(); | 17 buffer->seqlock.WriteEnd(); |
| 19 return true; | 18 return true; |
| 20 } | 19 } |
| 21 | 20 |
| 22 bool SetOrientationBuffer( | 21 bool SetOrientationBuffer(device::DeviceOrientationHardwareBuffer* buffer, |
| 23 content::DeviceOrientationHardwareBuffer* buffer, bool enabled) { | 22 bool enabled) { |
| 24 if (!buffer) | 23 if (!buffer) |
| 25 return false; | 24 return false; |
| 26 buffer->seqlock.WriteBegin(); | 25 buffer->seqlock.WriteBegin(); |
| 27 buffer->data.allAvailableSensorsAreActive = enabled; | 26 buffer->data.allAvailableSensorsAreActive = enabled; |
| 28 buffer->seqlock.WriteEnd(); | 27 buffer->seqlock.WriteEnd(); |
| 29 return true; | 28 return true; |
| 30 } | 29 } |
| 31 | 30 |
| 32 bool SetLightBuffer(content::DeviceLightHardwareBuffer* buffer, | 31 bool SetLightBuffer(device::DeviceLightHardwareBuffer* buffer, double lux) { |
| 33 double lux) { | |
| 34 if (!buffer) | 32 if (!buffer) |
| 35 return false; | 33 return false; |
| 36 buffer->seqlock.WriteBegin(); | 34 buffer->seqlock.WriteBegin(); |
| 37 buffer->data.value = lux; | 35 buffer->data.value = lux; |
| 38 buffer->seqlock.WriteEnd(); | 36 buffer->seqlock.WriteEnd(); |
| 39 return true; | 37 return true; |
| 40 } | 38 } |
| 41 | 39 |
| 42 } // namespace | 40 } // namespace |
| 43 | 41 |
| 44 namespace content { | 42 namespace device { |
| 45 | 43 |
| 46 DataFetcherSharedMemory::DataFetcherSharedMemory() | 44 DataFetcherSharedMemory::DataFetcherSharedMemory() |
| 47 : motion_buffer_(nullptr), | 45 : motion_buffer_(nullptr), |
| 48 orientation_buffer_(nullptr), | 46 orientation_buffer_(nullptr), |
| 49 light_buffer_(nullptr) { | 47 light_buffer_(nullptr) { |
| 50 } | 48 } |
| 51 | 49 |
| 52 DataFetcherSharedMemory::~DataFetcherSharedMemory() { | 50 DataFetcherSharedMemory::~DataFetcherSharedMemory() { |
| 53 } | 51 } |
| 54 | 52 |
| 55 bool DataFetcherSharedMemory::Start(ConsumerType consumer_type, void* buffer) { | 53 bool DataFetcherSharedMemory::Start(ConsumerType consumer_type, void* buffer) { |
| 56 DCHECK(buffer); | 54 DCHECK(buffer); |
| 57 | 55 |
| 58 switch (consumer_type) { | 56 switch (consumer_type) { |
| 59 case CONSUMER_TYPE_MOTION: | 57 case CONSUMER_TYPE_MOTION: |
| 60 motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer); | 58 motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer); |
| 61 UMA_HISTOGRAM_BOOLEAN("InertialSensor.MotionDefaultAvailable", false); | 59 UMA_HISTOGRAM_BOOLEAN("InertialSensor.MotionDefaultAvailable", false); |
| 62 return SetMotionBuffer(motion_buffer_, true); | 60 return SetMotionBuffer(motion_buffer_, true); |
| 63 case CONSUMER_TYPE_ORIENTATION: | 61 case CONSUMER_TYPE_ORIENTATION: |
| 64 orientation_buffer_ = | 62 orientation_buffer_ = |
| 65 static_cast<DeviceOrientationHardwareBuffer*>(buffer); | 63 static_cast<DeviceOrientationHardwareBuffer*>(buffer); |
| 66 UMA_HISTOGRAM_BOOLEAN("InertialSensor.OrientationDefaultAvailable", | 64 UMA_HISTOGRAM_BOOLEAN("InertialSensor.OrientationDefaultAvailable", |
| 67 false); | 65 false); |
| 68 return SetOrientationBuffer(orientation_buffer_, true); | 66 return SetOrientationBuffer(orientation_buffer_, true); |
| 69 case CONSUMER_TYPE_LIGHT: | 67 case CONSUMER_TYPE_LIGHT: |
| 70 light_buffer_ = static_cast<DeviceLightHardwareBuffer*>(buffer); | 68 light_buffer_ = static_cast<DeviceLightHardwareBuffer*>(buffer); |
| 71 return SetLightBuffer(light_buffer_, | 69 return SetLightBuffer(light_buffer_, |
| 72 std::numeric_limits<double>::infinity()); | 70 std::numeric_limits<double>::infinity()); |
| 73 default: | 71 default: |
| 74 NOTREACHED(); | 72 NOTREACHED(); |
| 75 } | 73 } |
| 76 return false; | 74 return false; |
| 77 } | 75 } |
| 78 | 76 |
| 79 bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) { | 77 bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) { |
| 80 switch (consumer_type) { | 78 switch (consumer_type) { |
| 81 case CONSUMER_TYPE_MOTION: | 79 case CONSUMER_TYPE_MOTION: |
| 82 return SetMotionBuffer(motion_buffer_, false); | 80 return SetMotionBuffer(motion_buffer_, false); |
| 83 case CONSUMER_TYPE_ORIENTATION: | 81 case CONSUMER_TYPE_ORIENTATION: |
| 84 return SetOrientationBuffer(orientation_buffer_, false); | 82 return SetOrientationBuffer(orientation_buffer_, false); |
| 85 case CONSUMER_TYPE_LIGHT: | 83 case CONSUMER_TYPE_LIGHT: |
| 86 return SetLightBuffer(light_buffer_, -1); | 84 return SetLightBuffer(light_buffer_, -1); |
| 87 default: | 85 default: |
| 88 NOTREACHED(); | 86 NOTREACHED(); |
| 89 } | 87 } |
| 90 return false; | 88 return false; |
| 91 } | 89 } |
| 92 | 90 |
| 93 } // namespace content | 91 } // namespace device |
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