1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
// Copyright 2016 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 "services/device/generic_sensor/platform_sensor_provider_android.h"
#include <utility>
#include <vector>
#include "base/android/scoped_java_ref.h"
#include "base/memory/ptr_util.h"
#include "base/memory/ref_counted.h"
#include "base/memory/singleton.h"
#include "jni/PlatformSensorProvider_jni.h"
#include "services/device/generic_sensor/absolute_orientation_euler_angles_fusion_algorithm_using_accelerometer_and_magnetometer.h"
#include "services/device/generic_sensor/orientation_euler_angles_fusion_algorithm_using_quaternion.h"
#include "services/device/generic_sensor/orientation_quaternion_fusion_algorithm_using_euler_angles.h"
#include "services/device/generic_sensor/platform_sensor_android.h"
#include "services/device/generic_sensor/platform_sensor_fusion.h"
#include "services/device/generic_sensor/relative_orientation_euler_angles_fusion_algorithm_using_accelerometer.h"
using base::android::AttachCurrentThread;
using base::android::ScopedJavaLocalRef;
namespace device {
// static
PlatformSensorProviderAndroid* PlatformSensorProviderAndroid::GetInstance() {
return base::Singleton<
PlatformSensorProviderAndroid,
base::LeakySingletonTraits<PlatformSensorProviderAndroid>>::get();
}
PlatformSensorProviderAndroid::PlatformSensorProviderAndroid() {
JNIEnv* env = AttachCurrentThread();
j_object_.Reset(Java_PlatformSensorProvider_create(env));
}
PlatformSensorProviderAndroid::~PlatformSensorProviderAndroid() = default;
void PlatformSensorProviderAndroid::SetSensorManagerToNullForTesting() {
JNIEnv* env = AttachCurrentThread();
Java_PlatformSensorProvider_setSensorManagerToNullForTesting(env, j_object_);
}
void PlatformSensorProviderAndroid::CreateSensorInternal(
mojom::SensorType type,
SensorReadingSharedBuffer* reading_buffer,
const CreateSensorCallback& callback) {
JNIEnv* env = AttachCurrentThread();
// Some of the sensors may not be available depending on the device and
// Android version, so the fallback ensures selection of the best possible
// option.
switch (type) {
case mojom::SensorType::ABSOLUTE_ORIENTATION_EULER_ANGLES:
CreateAbsoluteOrientationEulerAnglesSensor(env, reading_buffer, callback);
break;
case mojom::SensorType::ABSOLUTE_ORIENTATION_QUATERNION:
CreateAbsoluteOrientationQuaternionSensor(env, reading_buffer, callback);
break;
case mojom::SensorType::RELATIVE_ORIENTATION_EULER_ANGLES:
CreateRelativeOrientationEulerAnglesSensor(env, reading_buffer, callback);
break;
default: {
ScopedJavaLocalRef<jobject> sensor =
Java_PlatformSensorProvider_createSensor(env, j_object_,
static_cast<jint>(type));
if (!sensor.obj()) {
callback.Run(nullptr);
return;
}
auto concrete_sensor = base::MakeRefCounted<PlatformSensorAndroid>(
type, reading_buffer, this, sensor);
callback.Run(concrete_sensor);
break;
}
}
}
// For ABSOLUTE_ORIENTATION_EULER_ANGLES we use a 3-way fallback approach
// where up to 3 different sets of sensors are attempted if necessary. The
// sensors to be used are determined in the following order:
// A: ABSOLUTE_ORIENTATION_QUATERNION (if it uses TYPE_ROTATION_VECTOR
// directly)
// B: TODO(juncai): Combination of ACCELEROMETER, MAGNETOMETER and
// GYROSCOPE
// C: Combination of ACCELEROMETER and MAGNETOMETER
void PlatformSensorProviderAndroid::CreateAbsoluteOrientationEulerAnglesSensor(
JNIEnv* env,
SensorReadingSharedBuffer* reading_buffer,
const CreateSensorCallback& callback) {
if (static_cast<bool>(Java_PlatformSensorProvider_hasSensorType(
env, j_object_,
static_cast<jint>(
mojom::SensorType::ABSOLUTE_ORIENTATION_QUATERNION)))) {
auto sensor_fusion_algorithm =
std::make_unique<OrientationEulerAnglesFusionAlgorithmUsingQuaternion>(
true /* absolute */);
// If this PlatformSensorFusion object is successfully initialized,
// |callback| will be run with a reference to this object.
PlatformSensorFusion::Create(reading_buffer, this,
std::move(sensor_fusion_algorithm), callback);
} else {
auto sensor_fusion_algorithm = std::make_unique<
AbsoluteOrientationEulerAnglesFusionAlgorithmUsingAccelerometerAndMagnetometer>();
// If this PlatformSensorFusion object is successfully initialized,
// |callback| will be run with a reference to this object.
PlatformSensorFusion::Create(reading_buffer, this,
std::move(sensor_fusion_algorithm), callback);
}
}
// For ABSOLUTE_ORIENTATION_QUATERNION we use a 2-way fallback approach
// where up to 2 different sets of sensors are attempted if necessary. The
// sensors to be used are determined in the following order:
// A: Use TYPE_ROTATION_VECTOR directly
// B: ABSOLUTE_ORIENTATION_EULER_ANGLES
void PlatformSensorProviderAndroid::CreateAbsoluteOrientationQuaternionSensor(
JNIEnv* env,
SensorReadingSharedBuffer* reading_buffer,
const CreateSensorCallback& callback) {
ScopedJavaLocalRef<jobject> sensor = Java_PlatformSensorProvider_createSensor(
env, j_object_,
static_cast<jint>(mojom::SensorType::ABSOLUTE_ORIENTATION_QUATERNION));
if (sensor.obj()) {
auto concrete_sensor = base::MakeRefCounted<PlatformSensorAndroid>(
mojom::SensorType::ABSOLUTE_ORIENTATION_QUATERNION, reading_buffer,
this, sensor);
callback.Run(concrete_sensor);
} else {
auto sensor_fusion_algorithm =
std::make_unique<OrientationQuaternionFusionAlgorithmUsingEulerAngles>(
true /* absolute */);
// If this PlatformSensorFusion object is successfully initialized,
// |callback| will be run with a reference to this object.
PlatformSensorFusion::Create(reading_buffer, this,
std::move(sensor_fusion_algorithm), callback);
}
}
// For RELATIVE_ORIENTATION_EULER_ANGLES we use RELATIVE_ORIENTATION_QUATERNION
// (if it uses TYPE_GAME_ROTATION_VECTOR directly).
void PlatformSensorProviderAndroid::CreateRelativeOrientationEulerAnglesSensor(
JNIEnv* env,
SensorReadingSharedBuffer* reading_buffer,
const CreateSensorCallback& callback) {
if (static_cast<bool>(Java_PlatformSensorProvider_hasSensorType(
env, j_object_,
static_cast<jint>(
mojom::SensorType::RELATIVE_ORIENTATION_QUATERNION)))) {
auto sensor_fusion_algorithm =
std::make_unique<OrientationEulerAnglesFusionAlgorithmUsingQuaternion>(
false /* absolute */);
// If this PlatformSensorFusion object is successfully initialized,
// |callback| will be run with a reference to this object.
PlatformSensorFusion::Create(reading_buffer, this,
std::move(sensor_fusion_algorithm), callback);
} else {
callback.Run(nullptr);
}
}
} // namespace device
|
