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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 #include "content/browser/device_orientation/sensor_manager_android.h" | |
| 6 | |
| 7 #include <string.h> | |
| 8 | |
| 9 #include "base/android/jni_android.h" | |
| 10 #include "base/memory/singleton.h" | |
| 11 #include "base/metrics/histogram.h" | |
| 12 #include "content/browser/device_orientation/inertial_sensor_consts.h" | |
| 13 #include "jni/DeviceMotionAndOrientation_jni.h" | |
| 14 | |
| 15 using base::android::AttachCurrentThread; | |
| 16 | |
| 17 namespace { | |
| 18 | |
| 19 static void updateRotationVectorHistogram(bool value) { | |
| 20 UMA_HISTOGRAM_BOOLEAN("InertialSensor.RotationVectorAndroidAvailable", value); | |
| 21 } | |
| 22 | |
| 23 } | |
| 24 | |
| 25 namespace content { | |
| 26 | |
| 27 SensorManagerAndroid::SensorManagerAndroid() | |
| 28 : number_active_device_motion_sensors_(0), | |
| 29 device_motion_buffer_(NULL), | |
| 30 device_orientation_buffer_(NULL), | |
| 31 is_motion_buffer_ready_(false), | |
| 32 is_orientation_buffer_ready_(false) { | |
| 33 memset(received_motion_data_, 0, sizeof(received_motion_data_)); | |
| 34 device_orientation_.Reset( | |
| 35 Java_DeviceMotionAndOrientation_getInstance( | |
| 36 AttachCurrentThread(), | |
| 37 base::android::GetApplicationContext())); | |
| 38 } | |
| 39 | |
| 40 SensorManagerAndroid::~SensorManagerAndroid() { | |
| 41 } | |
| 42 | |
| 43 bool SensorManagerAndroid::Register(JNIEnv* env) { | |
| 44 return RegisterNativesImpl(env); | |
| 45 } | |
| 46 | |
| 47 SensorManagerAndroid* SensorManagerAndroid::GetInstance() { | |
| 48 return Singleton<SensorManagerAndroid, | |
| 49 LeakySingletonTraits<SensorManagerAndroid> >::get(); | |
| 50 } | |
| 51 | |
| 52 void SensorManagerAndroid::GotOrientation( | |
| 53 JNIEnv*, jobject, double alpha, double beta, double gamma) { | |
| 54 base::AutoLock autolock(orientation_buffer_lock_); | |
| 55 | |
| 56 if (!device_orientation_buffer_) | |
| 57 return; | |
| 58 | |
| 59 device_orientation_buffer_->seqlock.WriteBegin(); | |
| 60 device_orientation_buffer_->data.alpha = alpha; | |
| 61 device_orientation_buffer_->data.hasAlpha = true; | |
| 62 device_orientation_buffer_->data.beta = beta; | |
| 63 device_orientation_buffer_->data.hasBeta = true; | |
| 64 device_orientation_buffer_->data.gamma = gamma; | |
| 65 device_orientation_buffer_->data.hasGamma = true; | |
| 66 device_orientation_buffer_->seqlock.WriteEnd(); | |
| 67 | |
| 68 if (!is_orientation_buffer_ready_) { | |
| 69 SetOrientationBufferReadyStatus(true); | |
| 70 updateRotationVectorHistogram(true); | |
| 71 } | |
| 72 } | |
| 73 | |
| 74 void SensorManagerAndroid::GotAcceleration( | |
| 75 JNIEnv*, jobject, double x, double y, double z) { | |
| 76 base::AutoLock autolock(motion_buffer_lock_); | |
| 77 | |
| 78 if (!device_motion_buffer_) | |
| 79 return; | |
| 80 | |
| 81 device_motion_buffer_->seqlock.WriteBegin(); | |
| 82 device_motion_buffer_->data.accelerationX = x; | |
| 83 device_motion_buffer_->data.hasAccelerationX = true; | |
| 84 device_motion_buffer_->data.accelerationY = y; | |
| 85 device_motion_buffer_->data.hasAccelerationY = true; | |
| 86 device_motion_buffer_->data.accelerationZ = z; | |
| 87 device_motion_buffer_->data.hasAccelerationZ = true; | |
| 88 device_motion_buffer_->seqlock.WriteEnd(); | |
| 89 | |
| 90 if (!is_motion_buffer_ready_) { | |
| 91 received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] = 1; | |
| 92 CheckMotionBufferReadyToRead(); | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 void SensorManagerAndroid::GotAccelerationIncludingGravity( | |
| 97 JNIEnv*, jobject, double x, double y, double z) { | |
| 98 base::AutoLock autolock(motion_buffer_lock_); | |
| 99 | |
| 100 if (!device_motion_buffer_) | |
| 101 return; | |
| 102 | |
| 103 device_motion_buffer_->seqlock.WriteBegin(); | |
| 104 device_motion_buffer_->data.accelerationIncludingGravityX = x; | |
| 105 device_motion_buffer_->data.hasAccelerationIncludingGravityX = true; | |
| 106 device_motion_buffer_->data.accelerationIncludingGravityY = y; | |
| 107 device_motion_buffer_->data.hasAccelerationIncludingGravityY = true; | |
| 108 device_motion_buffer_->data.accelerationIncludingGravityZ = z; | |
| 109 device_motion_buffer_->data.hasAccelerationIncludingGravityZ = true; | |
| 110 device_motion_buffer_->seqlock.WriteEnd(); | |
| 111 | |
| 112 if (!is_motion_buffer_ready_) { | |
| 113 received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] = 1; | |
| 114 CheckMotionBufferReadyToRead(); | |
| 115 } | |
| 116 } | |
| 117 | |
| 118 void SensorManagerAndroid::GotRotationRate( | |
| 119 JNIEnv*, jobject, double alpha, double beta, double gamma) { | |
| 120 base::AutoLock autolock(motion_buffer_lock_); | |
| 121 | |
| 122 if (!device_motion_buffer_) | |
| 123 return; | |
| 124 | |
| 125 device_motion_buffer_->seqlock.WriteBegin(); | |
| 126 device_motion_buffer_->data.rotationRateAlpha = alpha; | |
| 127 device_motion_buffer_->data.hasRotationRateAlpha = true; | |
| 128 device_motion_buffer_->data.rotationRateBeta = beta; | |
| 129 device_motion_buffer_->data.hasRotationRateBeta = true; | |
| 130 device_motion_buffer_->data.rotationRateGamma = gamma; | |
| 131 device_motion_buffer_->data.hasRotationRateGamma = true; | |
| 132 device_motion_buffer_->seqlock.WriteEnd(); | |
| 133 | |
| 134 if (!is_motion_buffer_ready_) { | |
| 135 received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] = 1; | |
| 136 CheckMotionBufferReadyToRead(); | |
| 137 } | |
| 138 } | |
| 139 | |
| 140 bool SensorManagerAndroid::Start(EventType event_type) { | |
| 141 DCHECK(!device_orientation_.is_null()); | |
| 142 return Java_DeviceMotionAndOrientation_start( | |
| 143 AttachCurrentThread(), device_orientation_.obj(), | |
| 144 reinterpret_cast<intptr_t>(this), static_cast<jint>(event_type), | |
| 145 kInertialSensorIntervalMillis); | |
| 146 } | |
| 147 | |
| 148 void SensorManagerAndroid::Stop(EventType event_type) { | |
| 149 DCHECK(!device_orientation_.is_null()); | |
| 150 Java_DeviceMotionAndOrientation_stop( | |
| 151 AttachCurrentThread(), device_orientation_.obj(), | |
| 152 static_cast<jint>(event_type)); | |
| 153 } | |
| 154 | |
| 155 int SensorManagerAndroid::GetNumberActiveDeviceMotionSensors() { | |
| 156 DCHECK(!device_orientation_.is_null()); | |
| 157 return Java_DeviceMotionAndOrientation_getNumberActiveDeviceMotionSensors( | |
| 158 AttachCurrentThread(), device_orientation_.obj()); | |
| 159 } | |
| 160 | |
| 161 | |
| 162 // ----- Shared memory API methods | |
| 163 | |
| 164 // --- Device Motion | |
| 165 | |
| 166 bool SensorManagerAndroid::StartFetchingDeviceMotionData( | |
| 167 DeviceMotionHardwareBuffer* buffer) { | |
| 168 DCHECK(buffer); | |
| 169 { | |
| 170 base::AutoLock autolock(motion_buffer_lock_); | |
| 171 device_motion_buffer_ = buffer; | |
| 172 ClearInternalMotionBuffers(); | |
| 173 } | |
| 174 bool success = Start(kTypeMotion); | |
| 175 | |
| 176 // If no motion data can ever be provided, the number of active device motion | |
| 177 // sensors will be zero. In that case flag the shared memory buffer | |
| 178 // as ready to read, as it will not change anyway. | |
| 179 number_active_device_motion_sensors_ = GetNumberActiveDeviceMotionSensors(); | |
| 180 { | |
| 181 base::AutoLock autolock(motion_buffer_lock_); | |
| 182 CheckMotionBufferReadyToRead(); | |
| 183 } | |
| 184 return success; | |
| 185 } | |
| 186 | |
| 187 void SensorManagerAndroid::StopFetchingDeviceMotionData() { | |
| 188 Stop(kTypeMotion); | |
| 189 { | |
| 190 base::AutoLock autolock(motion_buffer_lock_); | |
| 191 if (device_motion_buffer_) { | |
| 192 ClearInternalMotionBuffers(); | |
| 193 device_motion_buffer_ = NULL; | |
| 194 } | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 void SensorManagerAndroid::CheckMotionBufferReadyToRead() { | |
| 199 if (received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] + | |
| 200 received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] + | |
| 201 received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] == | |
| 202 number_active_device_motion_sensors_) { | |
| 203 device_motion_buffer_->seqlock.WriteBegin(); | |
| 204 device_motion_buffer_->data.interval = kInertialSensorIntervalMillis; | |
| 205 device_motion_buffer_->seqlock.WriteEnd(); | |
| 206 SetMotionBufferReadyStatus(true); | |
| 207 | |
| 208 UMA_HISTOGRAM_BOOLEAN("InertialSensor.AccelerometerAndroidAvailable", | |
| 209 received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] > 0); | |
| 210 UMA_HISTOGRAM_BOOLEAN( | |
| 211 "InertialSensor.AccelerometerIncGravityAndroidAvailable", | |
| 212 received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] | |
| 213 > 0); | |
| 214 UMA_HISTOGRAM_BOOLEAN("InertialSensor.GyroscopeAndroidAvailable", | |
| 215 received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] > 0); | |
| 216 } | |
| 217 } | |
| 218 | |
| 219 void SensorManagerAndroid::SetMotionBufferReadyStatus(bool ready) { | |
| 220 device_motion_buffer_->seqlock.WriteBegin(); | |
| 221 device_motion_buffer_->data.allAvailableSensorsAreActive = ready; | |
| 222 device_motion_buffer_->seqlock.WriteEnd(); | |
| 223 is_motion_buffer_ready_ = ready; | |
| 224 } | |
| 225 | |
| 226 void SensorManagerAndroid::ClearInternalMotionBuffers() { | |
| 227 memset(received_motion_data_, 0, sizeof(received_motion_data_)); | |
| 228 number_active_device_motion_sensors_ = 0; | |
| 229 SetMotionBufferReadyStatus(false); | |
| 230 } | |
| 231 | |
| 232 // --- Device Orientation | |
| 233 | |
| 234 void SensorManagerAndroid::SetOrientationBufferReadyStatus(bool ready) { | |
| 235 device_orientation_buffer_->seqlock.WriteBegin(); | |
| 236 device_orientation_buffer_->data.absolute = ready; | |
| 237 device_orientation_buffer_->data.hasAbsolute = ready; | |
| 238 device_orientation_buffer_->data.allAvailableSensorsAreActive = ready; | |
| 239 device_orientation_buffer_->seqlock.WriteEnd(); | |
| 240 is_orientation_buffer_ready_ = ready; | |
| 241 } | |
| 242 | |
| 243 bool SensorManagerAndroid::StartFetchingDeviceOrientationData( | |
| 244 DeviceOrientationHardwareBuffer* buffer) { | |
| 245 DCHECK(buffer); | |
| 246 { | |
| 247 base::AutoLock autolock(orientation_buffer_lock_); | |
| 248 device_orientation_buffer_ = buffer; | |
| 249 } | |
| 250 bool success = Start(kTypeOrientation); | |
| 251 | |
| 252 { | |
| 253 base::AutoLock autolock(orientation_buffer_lock_); | |
| 254 // If Start() was unsuccessful then set the buffer ready flag to true | |
| 255 // to start firing all-null events. | |
| 256 SetOrientationBufferReadyStatus(!success); | |
| 257 } | |
| 258 | |
| 259 if (!success) | |
| 260 updateRotationVectorHistogram(false); | |
| 261 | |
| 262 return success; | |
| 263 } | |
| 264 | |
| 265 void SensorManagerAndroid::StopFetchingDeviceOrientationData() { | |
| 266 Stop(kTypeOrientation); | |
| 267 { | |
| 268 base::AutoLock autolock(orientation_buffer_lock_); | |
| 269 if (device_orientation_buffer_) { | |
| 270 SetOrientationBufferReadyStatus(false); | |
| 271 device_orientation_buffer_ = NULL; | |
| 272 } | |
| 273 } | |
| 274 } | |
| 275 | |
| 276 } // 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