| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "device/sensors/sensor_manager_android.h" |
| |
| #include <string.h> |
| |
| #include "base/android/jni_android.h" |
| #include "base/bind.h" |
| #include "base/memory/singleton.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "jni/DeviceSensors_jni.h" |
| |
| using base::android::AttachCurrentThread; |
| using base::android::JavaParamRef; |
| |
| namespace { |
| |
| void UpdateDeviceOrientationHistogram( |
| device::SensorManagerAndroid::OrientationSensorType type) { |
| UMA_HISTOGRAM_ENUMERATION( |
| "InertialSensor.DeviceOrientationSensorAndroid", type, |
| device::SensorManagerAndroid::ORIENTATION_SENSOR_MAX); |
| } |
| |
| void SetOrientation(device::DeviceOrientationHardwareBuffer* buffer, |
| double alpha, |
| double beta, |
| double gamma) { |
| buffer->seqlock.WriteBegin(); |
| buffer->data.alpha = alpha; |
| buffer->data.has_alpha = true; |
| buffer->data.beta = beta; |
| buffer->data.has_beta = true; |
| buffer->data.gamma = gamma; |
| buffer->data.has_gamma = true; |
| buffer->seqlock.WriteEnd(); |
| } |
| |
| void SetOrientationBufferStatus(device::DeviceOrientationHardwareBuffer* buffer, |
| bool ready, |
| bool absolute) { |
| buffer->seqlock.WriteBegin(); |
| buffer->data.absolute = absolute; |
| buffer->data.all_available_sensors_are_active = ready; |
| buffer->seqlock.WriteEnd(); |
| } |
| |
| } // namespace |
| |
| namespace device { |
| |
| SensorManagerAndroid::SensorManagerAndroid() |
| : number_active_device_motion_sensors_(0), |
| device_motion_buffer_(nullptr), |
| device_orientation_buffer_(nullptr), |
| motion_buffer_initialized_(false), |
| orientation_buffer_initialized_(false), |
| is_shutdown_(false) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| memset(received_motion_data_, 0, sizeof(received_motion_data_)); |
| device_sensors_.Reset(Java_DeviceSensors_create(AttachCurrentThread())); |
| } |
| |
| SensorManagerAndroid::~SensorManagerAndroid() {} |
| |
| SensorManagerAndroid* SensorManagerAndroid::GetInstance() { |
| DCHECK(base::MessageLoopForUI::IsCurrent()); |
| return base::Singleton< |
| SensorManagerAndroid, |
| base::LeakySingletonTraits<SensorManagerAndroid>>::get(); |
| } |
| |
| void SensorManagerAndroid::GotOrientation(JNIEnv*, |
| const JavaParamRef<jobject>&, |
| double alpha, |
| double beta, |
| double gamma) { |
| base::AutoLock autolock(orientation_buffer_lock_); |
| |
| if (!device_orientation_buffer_) |
| return; |
| |
| SetOrientation(device_orientation_buffer_, alpha, beta, gamma); |
| |
| if (!orientation_buffer_initialized_) { |
| OrientationSensorType type = |
| static_cast<OrientationSensorType>(GetOrientationSensorTypeUsed()); |
| SetOrientationBufferStatus(device_orientation_buffer_, true, |
| type != GAME_ROTATION_VECTOR); |
| orientation_buffer_initialized_ = true; |
| UpdateDeviceOrientationHistogram(type); |
| } |
| } |
| |
| void SensorManagerAndroid::GotOrientationAbsolute(JNIEnv*, |
| const JavaParamRef<jobject>&, |
| double alpha, |
| double beta, |
| double gamma) { |
| base::AutoLock autolock(orientation_absolute_buffer_lock_); |
| |
| if (!device_orientation_absolute_buffer_) |
| return; |
| |
| SetOrientation(device_orientation_absolute_buffer_, alpha, beta, gamma); |
| |
| if (!orientation_absolute_buffer_initialized_) { |
| SetOrientationBufferStatus(device_orientation_absolute_buffer_, true, true); |
| orientation_absolute_buffer_initialized_ = true; |
| // TODO(timvolodine): Add UMA. |
| } |
| } |
| |
| void SensorManagerAndroid::GotAcceleration(JNIEnv*, |
| const JavaParamRef<jobject>&, |
| double x, |
| double y, |
| double z) { |
| base::AutoLock autolock(motion_buffer_lock_); |
| |
| if (!device_motion_buffer_) |
| return; |
| |
| device_motion_buffer_->seqlock.WriteBegin(); |
| device_motion_buffer_->data.acceleration_x = x; |
| device_motion_buffer_->data.has_acceleration_x = true; |
| device_motion_buffer_->data.acceleration_y = y; |
| device_motion_buffer_->data.has_acceleration_y = true; |
| device_motion_buffer_->data.acceleration_z = z; |
| device_motion_buffer_->data.has_acceleration_z = true; |
| device_motion_buffer_->seqlock.WriteEnd(); |
| |
| if (!motion_buffer_initialized_) { |
| received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] = 1; |
| CheckMotionBufferReadyToRead(); |
| } |
| } |
| |
| void SensorManagerAndroid::GotAccelerationIncludingGravity( |
| JNIEnv*, |
| const JavaParamRef<jobject>&, |
| double x, |
| double y, |
| double z) { |
| base::AutoLock autolock(motion_buffer_lock_); |
| |
| if (!device_motion_buffer_) |
| return; |
| |
| device_motion_buffer_->seqlock.WriteBegin(); |
| device_motion_buffer_->data.acceleration_including_gravity_x = x; |
| device_motion_buffer_->data.has_acceleration_including_gravity_x = true; |
| device_motion_buffer_->data.acceleration_including_gravity_y = y; |
| device_motion_buffer_->data.has_acceleration_including_gravity_y = true; |
| device_motion_buffer_->data.acceleration_including_gravity_z = z; |
| device_motion_buffer_->data.has_acceleration_including_gravity_z = true; |
| device_motion_buffer_->seqlock.WriteEnd(); |
| |
| if (!motion_buffer_initialized_) { |
| received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] = 1; |
| CheckMotionBufferReadyToRead(); |
| } |
| } |
| |
| void SensorManagerAndroid::GotRotationRate(JNIEnv*, |
| const JavaParamRef<jobject>&, |
| double alpha, |
| double beta, |
| double gamma) { |
| base::AutoLock autolock(motion_buffer_lock_); |
| |
| if (!device_motion_buffer_) |
| return; |
| |
| device_motion_buffer_->seqlock.WriteBegin(); |
| device_motion_buffer_->data.rotation_rate_alpha = alpha; |
| device_motion_buffer_->data.has_rotation_rate_alpha = true; |
| device_motion_buffer_->data.rotation_rate_beta = beta; |
| device_motion_buffer_->data.has_rotation_rate_beta = true; |
| device_motion_buffer_->data.rotation_rate_gamma = gamma; |
| device_motion_buffer_->data.has_rotation_rate_gamma = true; |
| device_motion_buffer_->seqlock.WriteEnd(); |
| |
| if (!motion_buffer_initialized_) { |
| received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] = 1; |
| CheckMotionBufferReadyToRead(); |
| } |
| } |
| |
| bool SensorManagerAndroid::Start(ConsumerType consumer_type) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| DCHECK(!device_sensors_.is_null()); |
| return Java_DeviceSensors_start( |
| AttachCurrentThread(), device_sensors_, reinterpret_cast<intptr_t>(this), |
| static_cast<jint>(consumer_type), kDeviceSensorIntervalMicroseconds); |
| } |
| |
| void SensorManagerAndroid::Stop(ConsumerType consumer_type) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| DCHECK(!device_sensors_.is_null()); |
| Java_DeviceSensors_stop(AttachCurrentThread(), device_sensors_, |
| static_cast<jint>(consumer_type)); |
| } |
| |
| int SensorManagerAndroid::GetNumberActiveDeviceMotionSensors() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| DCHECK(!device_sensors_.is_null()); |
| return Java_DeviceSensors_getNumberActiveDeviceMotionSensors( |
| AttachCurrentThread(), device_sensors_); |
| } |
| |
| SensorManagerAndroid::OrientationSensorType |
| SensorManagerAndroid::GetOrientationSensorTypeUsed() { |
| DCHECK(!device_sensors_.is_null()); |
| return static_cast<SensorManagerAndroid::OrientationSensorType>( |
| Java_DeviceSensors_getOrientationSensorTypeUsed(AttachCurrentThread(), |
| device_sensors_)); |
| } |
| |
| // ----- Shared memory API methods |
| |
| // --- Device Motion |
| |
| void SensorManagerAndroid::StartFetchingDeviceMotionData( |
| DeviceMotionHardwareBuffer* buffer) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| DCHECK(buffer); |
| if (is_shutdown_) |
| return; |
| |
| { |
| base::AutoLock autolock(motion_buffer_lock_); |
| device_motion_buffer_ = buffer; |
| ClearInternalMotionBuffers(); |
| } |
| Start(CONSUMER_TYPE_MOTION); |
| |
| // If no motion data can ever be provided, the number of active device motion |
| // sensors will be zero. In that case flag the shared memory buffer |
| // as ready to read, as it will not change anyway. |
| number_active_device_motion_sensors_ = GetNumberActiveDeviceMotionSensors(); |
| { |
| base::AutoLock autolock(motion_buffer_lock_); |
| CheckMotionBufferReadyToRead(); |
| } |
| } |
| |
| void SensorManagerAndroid::StopFetchingDeviceMotionData() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| if (is_shutdown_) |
| return; |
| |
| Stop(CONSUMER_TYPE_MOTION); |
| { |
| base::AutoLock autolock(motion_buffer_lock_); |
| if (device_motion_buffer_) { |
| ClearInternalMotionBuffers(); |
| device_motion_buffer_ = nullptr; |
| } |
| } |
| } |
| |
| void SensorManagerAndroid::CheckMotionBufferReadyToRead() { |
| if (received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] + |
| received_motion_data_ |
| [RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] + |
| received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] == |
| number_active_device_motion_sensors_) { |
| device_motion_buffer_->seqlock.WriteBegin(); |
| device_motion_buffer_->data.interval = |
| kDeviceSensorIntervalMicroseconds / 1000.; |
| device_motion_buffer_->seqlock.WriteEnd(); |
| SetMotionBufferReadyStatus(true); |
| |
| UMA_HISTOGRAM_BOOLEAN( |
| "InertialSensor.AccelerometerAndroidAvailable", |
| received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION] > 0); |
| UMA_HISTOGRAM_BOOLEAN( |
| "InertialSensor.AccelerometerIncGravityAndroidAvailable", |
| received_motion_data_[RECEIVED_MOTION_DATA_ACCELERATION_INCL_GRAVITY] > |
| 0); |
| UMA_HISTOGRAM_BOOLEAN( |
| "InertialSensor.GyroscopeAndroidAvailable", |
| received_motion_data_[RECEIVED_MOTION_DATA_ROTATION_RATE] > 0); |
| } |
| } |
| |
| void SensorManagerAndroid::SetMotionBufferReadyStatus(bool ready) { |
| device_motion_buffer_->seqlock.WriteBegin(); |
| device_motion_buffer_->data.all_available_sensors_are_active = ready; |
| device_motion_buffer_->seqlock.WriteEnd(); |
| motion_buffer_initialized_ = ready; |
| } |
| |
| void SensorManagerAndroid::ClearInternalMotionBuffers() { |
| memset(received_motion_data_, 0, sizeof(received_motion_data_)); |
| number_active_device_motion_sensors_ = 0; |
| SetMotionBufferReadyStatus(false); |
| } |
| |
| // --- Device Orientation |
| |
| void SensorManagerAndroid::StartFetchingDeviceOrientationData( |
| DeviceOrientationHardwareBuffer* buffer) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| DCHECK(buffer); |
| if (is_shutdown_) |
| return; |
| |
| { |
| base::AutoLock autolock(orientation_buffer_lock_); |
| device_orientation_buffer_ = buffer; |
| } |
| bool success = Start(CONSUMER_TYPE_ORIENTATION); |
| |
| { |
| base::AutoLock autolock(orientation_buffer_lock_); |
| // If Start() was unsuccessful then set the buffer ready flag to true |
| // to start firing all-null events. |
| SetOrientationBufferStatus(buffer, !success /* ready */, |
| false /* absolute */); |
| orientation_buffer_initialized_ = !success; |
| } |
| |
| if (!success) |
| UpdateDeviceOrientationHistogram(NOT_AVAILABLE); |
| } |
| |
| void SensorManagerAndroid::StopFetchingDeviceOrientationData() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| if (is_shutdown_) |
| return; |
| |
| Stop(CONSUMER_TYPE_ORIENTATION); |
| { |
| base::AutoLock autolock(orientation_buffer_lock_); |
| if (device_orientation_buffer_) { |
| SetOrientationBufferStatus(device_orientation_buffer_, false, false); |
| orientation_buffer_initialized_ = false; |
| device_orientation_buffer_ = nullptr; |
| } |
| } |
| } |
| |
| void SensorManagerAndroid::StartFetchingDeviceOrientationAbsoluteData( |
| DeviceOrientationHardwareBuffer* buffer) { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| DCHECK(buffer); |
| if (is_shutdown_) |
| return; |
| |
| { |
| base::AutoLock autolock(orientation_absolute_buffer_lock_); |
| device_orientation_absolute_buffer_ = buffer; |
| } |
| bool success = Start(CONSUMER_TYPE_ORIENTATION_ABSOLUTE); |
| |
| { |
| base::AutoLock autolock(orientation_absolute_buffer_lock_); |
| // If Start() was unsuccessful then set the buffer ready flag to true |
| // to start firing all-null events. |
| SetOrientationBufferStatus(buffer, !success /* ready */, |
| false /* absolute */); |
| orientation_absolute_buffer_initialized_ = !success; |
| } |
| } |
| |
| void SensorManagerAndroid::StopFetchingDeviceOrientationAbsoluteData() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| if (is_shutdown_) |
| return; |
| |
| Stop(CONSUMER_TYPE_ORIENTATION_ABSOLUTE); |
| { |
| base::AutoLock autolock(orientation_absolute_buffer_lock_); |
| if (device_orientation_absolute_buffer_) { |
| SetOrientationBufferStatus(device_orientation_absolute_buffer_, false, |
| false); |
| orientation_absolute_buffer_initialized_ = false; |
| device_orientation_absolute_buffer_ = nullptr; |
| } |
| } |
| } |
| |
| void SensorManagerAndroid::Shutdown() { |
| DCHECK(thread_checker_.CalledOnValidThread()); |
| is_shutdown_ = true; |
| } |
| |
| } // namespace device |
