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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_orientation/data_fetcher_impl_android.h" | 5 #include "content/browser/device_orientation/data_fetcher_impl_android.h" |
6 | 6 |
7 #include <string.h> | 7 #include <string.h> |
8 | 8 |
9 #include "base/android/jni_android.h" | 9 #include "base/android/jni_android.h" |
10 #include "base/memory/singleton.h" | 10 #include "base/memory/singleton.h" |
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128 device_motion_buffer_->data.rotationRateGamma = gamma; | 128 device_motion_buffer_->data.rotationRateGamma = gamma; |
129 device_motion_buffer_->data.hasRotationRateGamma = true; | 129 device_motion_buffer_->data.hasRotationRateGamma = true; |
130 device_motion_buffer_->seqlock.WriteEnd(); | 130 device_motion_buffer_->seqlock.WriteEnd(); |
131 | 131 |
132 if (!is_motion_buffer_ready_) { | 132 if (!is_motion_buffer_ready_) { |
133 received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] = 1; | 133 received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] = 1; |
134 CheckMotionBufferReadyToRead(); | 134 CheckMotionBufferReadyToRead(); |
135 } | 135 } |
136 } | 136 } |
137 | 137 |
138 bool DataFetcherImplAndroid::Start(DeviceData::Type event_type) { | 138 bool DataFetcherImplAndroid::Start(EventType event_type) { |
139 DCHECK(!device_orientation_.is_null()); | 139 DCHECK(!device_orientation_.is_null()); |
140 return Java_DeviceMotionAndOrientation_start( | 140 return Java_DeviceMotionAndOrientation_start( |
141 AttachCurrentThread(), device_orientation_.obj(), | 141 AttachCurrentThread(), device_orientation_.obj(), |
142 reinterpret_cast<intptr_t>(this), static_cast<jint>(event_type), | 142 reinterpret_cast<intptr_t>(this), static_cast<jint>(event_type), |
143 kInertialSensorIntervalMillis); | 143 kInertialSensorIntervalMillis); |
144 } | 144 } |
145 | 145 |
146 void DataFetcherImplAndroid::Stop(DeviceData::Type event_type) { | 146 void DataFetcherImplAndroid::Stop(EventType event_type) { |
147 DCHECK(!device_orientation_.is_null()); | 147 DCHECK(!device_orientation_.is_null()); |
148 Java_DeviceMotionAndOrientation_stop( | 148 Java_DeviceMotionAndOrientation_stop( |
149 AttachCurrentThread(), device_orientation_.obj(), | 149 AttachCurrentThread(), device_orientation_.obj(), |
150 static_cast<jint>(event_type)); | 150 static_cast<jint>(event_type)); |
151 } | 151 } |
152 | 152 |
153 int DataFetcherImplAndroid::GetNumberActiveDeviceMotionSensors() { | 153 int DataFetcherImplAndroid::GetNumberActiveDeviceMotionSensors() { |
154 DCHECK(!device_orientation_.is_null()); | 154 DCHECK(!device_orientation_.is_null()); |
155 return Java_DeviceMotionAndOrientation_getNumberActiveDeviceMotionSensors( | 155 return Java_DeviceMotionAndOrientation_getNumberActiveDeviceMotionSensors( |
156 AttachCurrentThread(), device_orientation_.obj()); | 156 AttachCurrentThread(), device_orientation_.obj()); |
157 } | 157 } |
158 | 158 |
159 | 159 |
160 // ----- Shared memory API methods | 160 // ----- Shared memory API methods |
161 | 161 |
162 // --- Device Motion | 162 // --- Device Motion |
163 | 163 |
164 bool DataFetcherImplAndroid::StartFetchingDeviceMotionData( | 164 bool DataFetcherImplAndroid::StartFetchingDeviceMotionData( |
165 DeviceMotionHardwareBuffer* buffer) { | 165 DeviceMotionHardwareBuffer* buffer) { |
166 DCHECK(buffer); | 166 DCHECK(buffer); |
167 { | 167 { |
168 base::AutoLock autolock(motion_buffer_lock_); | 168 base::AutoLock autolock(motion_buffer_lock_); |
169 device_motion_buffer_ = buffer; | 169 device_motion_buffer_ = buffer; |
170 ClearInternalMotionBuffers(); | 170 ClearInternalMotionBuffers(); |
171 } | 171 } |
172 bool success = Start(DeviceData::kTypeMotion); | 172 bool success = Start(kTypeMotion); |
173 | 173 |
174 // If no motion data can ever be provided, the number of active device motion | 174 // If no motion data can ever be provided, the number of active device motion |
175 // sensors will be zero. In that case flag the shared memory buffer | 175 // sensors will be zero. In that case flag the shared memory buffer |
176 // as ready to read, as it will not change anyway. | 176 // as ready to read, as it will not change anyway. |
177 number_active_device_motion_sensors_ = GetNumberActiveDeviceMotionSensors(); | 177 number_active_device_motion_sensors_ = GetNumberActiveDeviceMotionSensors(); |
178 { | 178 { |
179 base::AutoLock autolock(motion_buffer_lock_); | 179 base::AutoLock autolock(motion_buffer_lock_); |
180 CheckMotionBufferReadyToRead(); | 180 CheckMotionBufferReadyToRead(); |
181 } | 181 } |
182 return success; | 182 return success; |
183 } | 183 } |
184 | 184 |
185 void DataFetcherImplAndroid::StopFetchingDeviceMotionData() { | 185 void DataFetcherImplAndroid::StopFetchingDeviceMotionData() { |
186 Stop(DeviceData::kTypeMotion); | 186 Stop(kTypeMotion); |
187 { | 187 { |
188 base::AutoLock autolock(motion_buffer_lock_); | 188 base::AutoLock autolock(motion_buffer_lock_); |
189 if (device_motion_buffer_) { | 189 if (device_motion_buffer_) { |
190 ClearInternalMotionBuffers(); | 190 ClearInternalMotionBuffers(); |
191 device_motion_buffer_ = NULL; | 191 device_motion_buffer_ = NULL; |
192 } | 192 } |
193 } | 193 } |
194 } | 194 } |
195 | 195 |
196 void DataFetcherImplAndroid::CheckMotionBufferReadyToRead() { | 196 void DataFetcherImplAndroid::CheckMotionBufferReadyToRead() { |
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238 is_orientation_buffer_ready_ = ready; | 238 is_orientation_buffer_ready_ = ready; |
239 } | 239 } |
240 | 240 |
241 bool DataFetcherImplAndroid::StartFetchingDeviceOrientationData( | 241 bool DataFetcherImplAndroid::StartFetchingDeviceOrientationData( |
242 DeviceOrientationHardwareBuffer* buffer) { | 242 DeviceOrientationHardwareBuffer* buffer) { |
243 DCHECK(buffer); | 243 DCHECK(buffer); |
244 { | 244 { |
245 base::AutoLock autolock(orientation_buffer_lock_); | 245 base::AutoLock autolock(orientation_buffer_lock_); |
246 device_orientation_buffer_ = buffer; | 246 device_orientation_buffer_ = buffer; |
247 } | 247 } |
248 bool success = Start(DeviceData::kTypeOrientation); | 248 bool success = Start(kTypeOrientation); |
249 | 249 |
250 { | 250 { |
251 base::AutoLock autolock(orientation_buffer_lock_); | 251 base::AutoLock autolock(orientation_buffer_lock_); |
252 // If Start() was unsuccessful then set the buffer ready flag to true | 252 // If Start() was unsuccessful then set the buffer ready flag to true |
253 // to start firing all-null events. | 253 // to start firing all-null events. |
254 SetOrientationBufferReadyStatus(!success); | 254 SetOrientationBufferReadyStatus(!success); |
255 } | 255 } |
256 | 256 |
257 if (!success) | 257 if (!success) |
258 updateRotationVectorHistogram(false); | 258 updateRotationVectorHistogram(false); |
259 | 259 |
260 return success; | 260 return success; |
261 } | 261 } |
262 | 262 |
263 void DataFetcherImplAndroid::StopFetchingDeviceOrientationData() { | 263 void DataFetcherImplAndroid::StopFetchingDeviceOrientationData() { |
264 Stop(DeviceData::kTypeOrientation); | 264 Stop(kTypeOrientation); |
265 { | 265 { |
266 base::AutoLock autolock(orientation_buffer_lock_); | 266 base::AutoLock autolock(orientation_buffer_lock_); |
267 if (device_orientation_buffer_) { | 267 if (device_orientation_buffer_) { |
268 SetOrientationBufferReadyStatus(false); | 268 SetOrientationBufferReadyStatus(false); |
269 device_orientation_buffer_ = NULL; | 269 device_orientation_buffer_ = NULL; |
270 } | 270 } |
271 } | 271 } |
272 } | 272 } |
273 | 273 |
274 } // namespace content | 274 } // namespace content |
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