From 2c9fc2c1a197b84ba9ef3dc4e586a77a18c3dcc5 Mon Sep 17 00:00:00 2001 From: BogDan Vatra Date: Tue, 2 Apr 2019 14:00:37 +0300 Subject: Say hello to Qt Android Sensors based on NDK API Until Qt 5.9, we had to use JNI way because the NDK sensors API was introduced in API-16. Starting with Qt 5.9 we can safely use the NDK API as API_16 is the minimum API supported by Qt. Using the NDK API instead of JNI boost the performance a lot! The CPU usage dropped 2 to 4 times, from over 60% using the JNI to less than 20%. [ChangeLog][Android] Rewrite Qt Android Sensors using NDK API. Change-Id: If3e3f1e56973e2a189662912b2a6ebfbd71dee14 Reviewed-by: Lorn Potter --- src/plugins/sensors/android/main.cpp | 167 +++++++++++++++++++++++++++++++++++ 1 file changed, 167 insertions(+) create mode 100644 src/plugins/sensors/android/main.cpp (limited to 'src/plugins/sensors/android/main.cpp') diff --git a/src/plugins/sensors/android/main.cpp b/src/plugins/sensors/android/main.cpp new file mode 100644 index 00000000..85853cd2 --- /dev/null +++ b/src/plugins/sensors/android/main.cpp @@ -0,0 +1,167 @@ +/**************************************************************************** +** +** Copyright (C) 2016 BogDan Vatra +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtSensors module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include "androidaccelerometer.h" +#include "androidcompass.h" +#include "androidgyroscope.h" +#include "androidlight.h" +#include "androidmagnetometer.h" +#include "androidpressure.h" +#include "androidproximity.h" +#include "androidrotation.h" +#include "androidtemperature.h" + +#include "sensormanager.h" +#include + +namespace { + const char AndroidCompassId[] = "android.synthetic.compass"; +} + +class AndroidSensorPlugin : public QObject, public QSensorPluginInterface, public QSensorBackendFactory +{ + Q_OBJECT + Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QSensorPluginInterface/1.0" FILE "plugin.json") + Q_INTERFACES(QSensorPluginInterface) +public: + void registerSensors() override + { + bool accelerometer = false; + bool magnetometer = false; + ASensorList availableSensors; + int count = ASensorManager_getSensorList(SensorManager::instance()->manager(), &availableSensors); + for (int i = 0; i < count; i++) { + int sensor = ASensor_getType(availableSensors[i]); + switch (sensor) { + case ASENSOR_TYPE_ACCELEROMETER: + m_accelerationModes |= AndroidAccelerometer::Accelerometer; + QSensorManager::registerBackend(QAccelerometer::type, QByteArray::number(sensor), this); + accelerometer = true; + break; + case ASENSOR_TYPE_GRAVITY: + m_accelerationModes |= AndroidAccelerometer::Gravity; + break; + case ASENSOR_TYPE_LINEAR_ACCELERATION: + m_accelerationModes |= AndroidAccelerometer::LinearAcceleration; + break; + case ASENSOR_TYPE_AMBIENT_TEMPERATURE: + QSensorManager::registerBackend(QAmbientTemperatureSensor::type, QByteArray::number(sensor), this); + break; + case ASENSOR_TYPE_GYROSCOPE: + QSensorManager::registerBackend(QGyroscope::type, QByteArray::number(sensor), this); + break; + case ASENSOR_TYPE_LIGHT: + QSensorManager::registerBackend(QLightSensor::type, QByteArray::number(sensor), this); + break; + case ASENSOR_TYPE_MAGNETIC_FIELD: + QSensorManager::registerBackend(QMagnetometer::type, QByteArray::number(sensor), this); + magnetometer = true; + break; + case ASENSOR_TYPE_PRESSURE: + QSensorManager::registerBackend(QPressureSensor::type, QByteArray::number(sensor), this); + break; + case ASENSOR_TYPE_PROXIMITY: + QSensorManager::registerBackend(QProximitySensor::type, QByteArray::number(sensor), this); + break; + case ASENSOR_TYPE_ROTATION_VECTOR: + QSensorManager::registerBackend(QRotationSensor::type, QByteArray::number(sensor), this); + break; + + case ASENSOR_TYPE_RELATIVE_HUMIDITY: + case ASENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED: + case ASENSOR_TYPE_GAME_ROTATION_VECTOR: + case ASENSOR_TYPE_GYROSCOPE_UNCALIBRATED: + case ASENSOR_TYPE_SIGNIFICANT_MOTION: + case ASENSOR_TYPE_STEP_DETECTOR: + case ASENSOR_TYPE_STEP_COUNTER: + case ASENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR: + case ASENSOR_TYPE_HEART_RATE: + case ASENSOR_TYPE_POSE_6DOF: + case ASENSOR_TYPE_STATIONARY_DETECT: + case ASENSOR_TYPE_MOTION_DETECT: + case ASENSOR_TYPE_HEART_BEAT: + case ASENSOR_TYPE_LOW_LATENCY_OFFBODY_DETECT: + case ASENSOR_TYPE_ACCELEROMETER_UNCALIBRATED: + break; // ### TODO add backends for missing Android sensors + } + } + if (accelerometer && magnetometer) + QSensorManager::registerBackend(QCompass::type, AndroidCompassId, this); + } + + QSensorBackend *createBackend(QSensor *sensor) override + { + if (sensor->identifier() == AndroidCompassId) + return new AndroidCompass(sensor); + + int type = sensor->identifier().toInt(); + switch (type) { + case ASENSOR_TYPE_ACCELEROMETER: + return new AndroidAccelerometer(m_accelerationModes, sensor); + case ASENSOR_TYPE_AMBIENT_TEMPERATURE: + return new AndroidTemperature(type, sensor); + case ASENSOR_TYPE_GYROSCOPE: + return new AndroidGyroscope(type, sensor); + case ASENSOR_TYPE_LIGHT: + return new AndroidLight(type, sensor); + case ASENSOR_TYPE_MAGNETIC_FIELD: + return new AndroidMagnetometer(type, sensor); + case ASENSOR_TYPE_PRESSURE: + return new AndroidPressure(type, sensor); + case ASENSOR_TYPE_PROXIMITY: + return new AndroidProximity(type, sensor); + case ASENSOR_TYPE_ROTATION_VECTOR: + return new AndroidRotation(type, sensor); + } + return nullptr; + } +private: + int m_accelerationModes = 0; +}; + +Q_IMPORT_PLUGIN (AndroidSensorPlugin) // automatically register the plugin + +#include "main.moc" + -- cgit v1.2.3