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Side by Side Diff: device/device_sensors/data_fetcher_shared_memory_mac.cc

Issue 1164563003: Extract device_sensors to /device via Mojofication (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 6 months ago
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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 #include "content/browser/device_sensors/ambient_light_mac.h" 9 #include "device/device_sensors/ambient_light_mac.h"
10 #include "third_party/sudden_motion_sensor/sudden_motion_sensor_mac.h" 10 #include "third_party/sudden_motion_sensor/sudden_motion_sensor_mac.h"
11 11
12 namespace { 12 namespace {
13 13
14 const double kMeanGravity = 9.80665; 14 const double kMeanGravity = 9.80665;
15 15
16 double LMUvalueToLux(uint64_t raw_value) { 16 double LMUvalueToLux(uint64_t raw_value) {
17 // Conversion formula from regression. 17 // Conversion formula from regression.
18 // https://bugzilla.mozilla.org/show_bug.cgi?id=793728 18 // https://bugzilla.mozilla.org/show_bug.cgi?id=793728
19 // Let x = raw_value, then 19 // Let x = raw_value, then
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45 if (!sensor->ReadSensorValue(lux_value)) 45 if (!sensor->ReadSensorValue(lux_value))
46 return; 46 return;
47 uint64_t mean = (lux_value[0] + lux_value[1]) / 2; 47 uint64_t mean = (lux_value[0] + lux_value[1]) / 2;
48 double lux = LMUvalueToLux(mean); 48 double lux = LMUvalueToLux(mean);
49 buffer->seqlock.WriteBegin(); 49 buffer->seqlock.WriteBegin();
50 buffer->data.value = lux; 50 buffer->data.value = lux;
51 buffer->seqlock.WriteEnd(); 51 buffer->seqlock.WriteEnd();
52 } 52 }
53 53
54 void FetchMotion(SuddenMotionSensor* sensor, 54 void FetchMotion(SuddenMotionSensor* sensor,
55 content::DeviceMotionHardwareBuffer* buffer) { 55 content::DeviceMotionHardwareBuffer* buffer) {
56 DCHECK(sensor); 56 DCHECK(sensor);
57 DCHECK(buffer); 57 DCHECK(buffer);
58 58
59 float axis_value[3]; 59 float axis_value[3];
60 if (!sensor->ReadSensorValues(axis_value)) 60 if (!sensor->ReadSensorValues(axis_value))
61 return; 61 return;
62 62
63 buffer->seqlock.WriteBegin(); 63 buffer->seqlock.WriteBegin();
64 buffer->data.accelerationIncludingGravityX = axis_value[0] * kMeanGravity; 64 buffer->data.accelerationIncludingGravityX = axis_value[0] * kMeanGravity;
65 buffer->data.hasAccelerationIncludingGravityX = true; 65 buffer->data.hasAccelerationIncludingGravityX = true;
66 buffer->data.accelerationIncludingGravityY = axis_value[1] * kMeanGravity; 66 buffer->data.accelerationIncludingGravityY = axis_value[1] * kMeanGravity;
67 buffer->data.hasAccelerationIncludingGravityY = true; 67 buffer->data.hasAccelerationIncludingGravityY = true;
68 buffer->data.accelerationIncludingGravityZ = axis_value[2] * kMeanGravity; 68 buffer->data.accelerationIncludingGravityZ = axis_value[2] * kMeanGravity;
69 buffer->data.hasAccelerationIncludingGravityZ = true; 69 buffer->data.hasAccelerationIncludingGravityZ = true;
70 buffer->data.allAvailableSensorsAreActive = true; 70 buffer->data.allAvailableSensorsAreActive = true;
71 buffer->seqlock.WriteEnd(); 71 buffer->seqlock.WriteEnd();
72 } 72 }
73 73
74 void FetchOrientation(SuddenMotionSensor* sensor, 74 void FetchOrientation(SuddenMotionSensor* sensor,
75 content::DeviceOrientationHardwareBuffer* buffer) { 75 content::DeviceOrientationHardwareBuffer* buffer) {
76 DCHECK(sensor); 76 DCHECK(sensor);
77 DCHECK(buffer); 77 DCHECK(buffer);
78 78
79 // Retrieve per-axis calibrated values. 79 // Retrieve per-axis calibrated values.
80 float axis_value[3]; 80 float axis_value[3];
81 if (!sensor->ReadSensorValues(axis_value)) 81 if (!sensor->ReadSensorValues(axis_value))
82 return; 82 return;
83 83
84 // Transform the accelerometer values to W3C draft angles. 84 // Transform the accelerometer values to W3C draft angles.
85 // 85 //
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108 // Make sure that the interval boundaries comply with the specification. At 108 // Make sure that the interval boundaries comply with the specification. At
109 // this point, beta is [-180, 180] and gamma is [-90, 90], but the spec has 109 // this point, beta is [-180, 180] and gamma is [-90, 90], but the spec has
110 // the upper bound open on both. 110 // the upper bound open on both.
111 if (beta == 180.0) 111 if (beta == 180.0)
112 beta = -180; // -180 == 180 (upside-down) 112 beta = -180; // -180 == 180 (upside-down)
113 if (gamma == 90.0) 113 if (gamma == 90.0)
114 gamma = nextafter(90, 0); 114 gamma = nextafter(90, 0);
115 115
116 // At this point, DCHECKing is paranoia. Never hurts. 116 // At this point, DCHECKing is paranoia. Never hurts.
117 DCHECK_GE(beta, -180.0); 117 DCHECK_GE(beta, -180.0);
118 DCHECK_LT(beta, 180.0); 118 DCHECK_LT(beta, 180.0);
119 DCHECK_GE(gamma, -90.0); 119 DCHECK_GE(gamma, -90.0);
120 DCHECK_LT(gamma, 90.0); 120 DCHECK_LT(gamma, 90.0);
121 121
122 buffer->seqlock.WriteBegin(); 122 buffer->seqlock.WriteBegin();
123 buffer->data.beta = beta; 123 buffer->data.beta = beta;
124 buffer->data.hasBeta = true; 124 buffer->data.hasBeta = true;
125 buffer->data.gamma = gamma; 125 buffer->data.gamma = gamma;
126 buffer->data.hasGamma = true; 126 buffer->data.hasGamma = true;
127 buffer->data.allAvailableSensorsAreActive = true; 127 buffer->data.allAvailableSensorsAreActive = true;
128 buffer->seqlock.WriteEnd(); 128 buffer->seqlock.WriteEnd();
129 } 129 }
130 130
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162 162
163 switch (consumer_type) { 163 switch (consumer_type) {
164 case CONSUMER_TYPE_MOTION: { 164 case CONSUMER_TYPE_MOTION: {
165 if (!sudden_motion_sensor_) 165 if (!sudden_motion_sensor_)
166 sudden_motion_sensor_.reset(SuddenMotionSensor::Create()); 166 sudden_motion_sensor_.reset(SuddenMotionSensor::Create());
167 bool sudden_motion_sensor_available = 167 bool sudden_motion_sensor_available =
168 sudden_motion_sensor_.get() != nullptr; 168 sudden_motion_sensor_.get() != nullptr;
169 169
170 motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer); 170 motion_buffer_ = static_cast<DeviceMotionHardwareBuffer*>(buffer);
171 UMA_HISTOGRAM_BOOLEAN("InertialSensor.MotionMacAvailable", 171 UMA_HISTOGRAM_BOOLEAN("InertialSensor.MotionMacAvailable",
172 sudden_motion_sensor_available); 172 sudden_motion_sensor_available);
173 if (!sudden_motion_sensor_available) { 173 if (!sudden_motion_sensor_available) {
174 // No motion sensor available, fire an all-null event. 174 // No motion sensor available, fire an all-null event.
175 motion_buffer_->seqlock.WriteBegin(); 175 motion_buffer_->seqlock.WriteBegin();
176 motion_buffer_->data.allAvailableSensorsAreActive = true; 176 motion_buffer_->data.allAvailableSensorsAreActive = true;
177 motion_buffer_->seqlock.WriteEnd(); 177 motion_buffer_->seqlock.WriteEnd();
178 } 178 }
179 return sudden_motion_sensor_available; 179 return sudden_motion_sensor_available;
180 } 180 }
181 case CONSUMER_TYPE_ORIENTATION: { 181 case CONSUMER_TYPE_ORIENTATION: {
182 if (!sudden_motion_sensor_) 182 if (!sudden_motion_sensor_)
183 sudden_motion_sensor_.reset(SuddenMotionSensor::Create()); 183 sudden_motion_sensor_.reset(SuddenMotionSensor::Create());
184 bool sudden_motion_sensor_available = 184 bool sudden_motion_sensor_available =
185 sudden_motion_sensor_.get() != nullptr; 185 sudden_motion_sensor_.get() != nullptr;
186 186
187 orientation_buffer_ = 187 orientation_buffer_ =
188 static_cast<DeviceOrientationHardwareBuffer*>(buffer); 188 static_cast<DeviceOrientationHardwareBuffer*>(buffer);
189 UMA_HISTOGRAM_BOOLEAN("InertialSensor.OrientationMacAvailable", 189 UMA_HISTOGRAM_BOOLEAN("InertialSensor.OrientationMacAvailable",
190 sudden_motion_sensor_available); 190 sudden_motion_sensor_available);
191 if (sudden_motion_sensor_available) { 191 if (sudden_motion_sensor_available) {
192 // On Mac we cannot provide absolute orientation. 192 // On Mac we cannot provide absolute orientation.
193 orientation_buffer_->seqlock.WriteBegin(); 193 orientation_buffer_->seqlock.WriteBegin();
194 orientation_buffer_->data.absolute = false; 194 orientation_buffer_->data.absolute = false;
195 orientation_buffer_->data.hasAbsolute = true; 195 orientation_buffer_->data.hasAbsolute = true;
196 orientation_buffer_->seqlock.WriteEnd(); 196 orientation_buffer_->seqlock.WriteEnd();
197 } else { 197 } else {
198 // No motion sensor available, fire an all-null event. 198 // No motion sensor available, fire an all-null event.
199 orientation_buffer_->seqlock.WriteBegin(); 199 orientation_buffer_->seqlock.WriteBegin();
200 orientation_buffer_->data.allAvailableSensorsAreActive = true; 200 orientation_buffer_->data.allAvailableSensorsAreActive = true;
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250 light_buffer_ = nullptr; 250 light_buffer_ = nullptr;
251 } 251 }
252 return true; 252 return true;
253 default: 253 default:
254 NOTREACHED(); 254 NOTREACHED();
255 } 255 }
256 return false; 256 return false;
257 } 257 }
258 258
259 } // namespace content 259 } // namespace content
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