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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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