////  SDL2Manager.cpp//  input-plugins/src/input-plugins////  Created by Sam Gondelman on 6/5/15.//  Copyright 2015 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "SDL2Manager.h" #include <QtCore/QCoreApplication> #include <controllers/UserInputMapper.h>#include <PerfStat.h>#include <Preferences.h>#include <SettingHandle.h>  static_assert(    (int)controller::A == (int)SDL_CONTROLLER_BUTTON_A &&    (int)controller::B == (int)SDL_CONTROLLER_BUTTON_B &&    (int)controller::X == (int)SDL_CONTROLLER_BUTTON_X &&    (int)controller::Y == (int)SDL_CONTROLLER_BUTTON_Y &&    (int)controller::BACK == (int)SDL_CONTROLLER_BUTTON_BACK &&    (int)controller::GUIDE == (int)SDL_CONTROLLER_BUTTON_GUIDE &&    (int)controller::START == (int)SDL_CONTROLLER_BUTTON_START &&    (int)controller::LS == (int)SDL_CONTROLLER_BUTTON_LEFTSTICK &&    (int)controller::RS == (int)SDL_CONTROLLER_BUTTON_RIGHTSTICK &&    (int)controller::LB == (int)SDL_CONTROLLER_BUTTON_LEFTSHOULDER &&    (int)controller::RB == (int)SDL_CONTROLLER_BUTTON_RIGHTSHOULDER &&    (int)controller::DU == (int)SDL_CONTROLLER_BUTTON_DPAD_UP &&    (int)controller::DD == (int)SDL_CONTROLLER_BUTTON_DPAD_DOWN &&    (int)controller::DL == (int)SDL_CONTROLLER_BUTTON_DPAD_LEFT &&    (int)controller::DR == (int)SDL_CONTROLLER_BUTTON_DPAD_RIGHT &&    (int)controller::LX == (int)SDL_CONTROLLER_AXIS_LEFTX &&    (int)controller::LY == (int)SDL_CONTROLLER_AXIS_LEFTY &&    (int)controller::RX == (int)SDL_CONTROLLER_AXIS_RIGHTX &&    (int)controller::RY == (int)SDL_CONTROLLER_AXIS_RIGHTY &&    (int)controller::LT == (int)SDL_CONTROLLER_AXIS_TRIGGERLEFT &&    (int)controller::RT == (int)SDL_CONTROLLER_AXIS_TRIGGERRIGHT,    "SDL2 equivalence: Enums and values from StandardControls.h are assumed to match enums from SDL_gamecontroller.h");  const char* SDL2Manager::NAME = "SDL2";const char* SDL2Manager::SDL2_ID_STRING = "SDL2"; const bool DEFAULT_ENABLED = true; SDL_JoystickID SDL2Manager::getInstanceId(SDL_GameController* controller) {    SDL_Joystick* joystick = SDL_GameControllerGetJoystick(controller);    return SDL_JoystickInstanceID(joystick);} void SDL2Manager::init() {} QStringList SDL2Manager::getSubdeviceNames() {    return _subdeviceNames;} void SDL2Manager::deinit() {    _openJoysticks.clear();     SDL_Quit();} bool SDL2Manager::activate() {        // FIXME for some reason calling this code in the `init` function triggers a crash    // on OSX in PR builds, but not on my local debug build.  Attempting a workaround by    //    static std::once_flag once;    std::call_once(once, [&]{        loadSettings();                auto preferences = DependencyManager::get<Preferences>();        static const QString SDL2_PLUGIN { "Game Controller" };        {            auto getter = [this]()->bool { return _enabled; };            auto setter = [this](bool value) {                _enabled = value;                saveSettings();                emit deviceStatusChanged(getName(), isRunning());            };            auto preference = new CheckPreference(SDL2_PLUGIN, "Enabled", getter, setter);            preferences->addPreference(preference);        }                bool initSuccess = (SDL_Init(SDL_INIT_GAMECONTROLLER | SDL_INIT_HAPTIC) == 0);                if (initSuccess) {            int joystickCount = SDL_NumJoysticks();                        for (int i = 0; i < joystickCount; i++) {                SDL_GameController* controller = SDL_GameControllerOpen(i);                                if (controller) {                    SDL_JoystickID id = getInstanceId(controller);                    if (!_openJoysticks.contains(id)) {                        //Joystick* joystick = new Joystick(id, SDL_GameControllerName(controller), controller);                        Joystick::Pointer joystick  = std::make_shared<Joystick>(id, controller);                        _openJoysticks[id] = joystick;                        auto userInputMapper = DependencyManager::get<controller::UserInputMapper>();                        userInputMapper->registerDevice(joystick);                        auto name = SDL_GameControllerName(controller);                        _subdeviceNames << name;                        emit joystickAdded(joystick.get());                        emit subdeviceConnected(getName(), name);                    }                }            }                        _isInitialized = true;        } else {            qDebug() << "Error initializing SDL2 Manager";        }    });        if (!_isInitialized) {        return false;    }        InputPlugin::activate();    auto userInputMapper = DependencyManager::get<controller::UserInputMapper>();    for (auto joystick : _openJoysticks) {        userInputMapper->registerDevice(joystick);        emit joystickAdded(joystick.get());    }    return true;} void SDL2Manager::deactivate() {    auto userInputMapper = DependencyManager::get<controller::UserInputMapper>();    for (auto joystick : _openJoysticks) {        userInputMapper->removeDevice(joystick->getDeviceID());        emit joystickRemoved(joystick.get());    }    InputPlugin::deactivate();} const char* SETTINGS_ENABLED_KEY = "enabled"; void SDL2Manager::saveSettings() const {    Settings settings;    QString idString = getID();    settings.beginGroup(idString);    {        settings.setValue(QString(SETTINGS_ENABLED_KEY), _enabled);    }    settings.endGroup();} void SDL2Manager::loadSettings() {    Settings settings;    QString idString = getID();    settings.beginGroup(idString);    {        _enabled = settings.value(SETTINGS_ENABLED_KEY, QVariant(DEFAULT_ENABLED)).toBool();        emit deviceStatusChanged(getName(), isRunning());    }    settings.endGroup();} bool SDL2Manager::isSupported() const {    return true;} void SDL2Manager::pluginFocusOutEvent() {    for (auto joystick : _openJoysticks) {        joystick->focusOutEvent();    }} void SDL2Manager::pluginUpdate(float deltaTime, const controller::InputCalibrationData& inputCalibrationData) {    if (!_enabled) {        return;    }     if (_isInitialized) {        auto userInputMapper = DependencyManager::get<controller::UserInputMapper>();        for (auto joystick : _openJoysticks) {            joystick->update(deltaTime, inputCalibrationData);        }                PerformanceTimer perfTimer("SDL2Manager::update");        SDL_GameControllerUpdate();        SDL_Event event;        while (SDL_PollEvent(&event)) {            if (event.type == SDL_CONTROLLERAXISMOTION) {                Joystick::Pointer joystick = _openJoysticks[event.caxis.which];                if (joystick) {                    joystick->handleAxisEvent(event.caxis);                }            } else if (event.type == SDL_CONTROLLERBUTTONDOWN || event.type == SDL_CONTROLLERBUTTONUP) {                Joystick::Pointer joystick = _openJoysticks[event.cbutton.which];                if (joystick) {                    joystick->handleButtonEvent(event.cbutton);                }                #if 0                if (event.cbutton.button == SDL_CONTROLLER_BUTTON_BACK) {                    // this will either start or stop a global back event                    QEvent::Type backType = (event.type == SDL_CONTROLLERBUTTONDOWN)                    ? HFBackEvent::startType()                    : HFBackEvent::endType();                    HFBackEvent backEvent(backType);                                        qApp->sendEvent(qApp, &backEvent);                }#endif                            } else if (event.type == SDL_CONTROLLERDEVICEADDED) {                SDL_GameController* controller = SDL_GameControllerOpen(event.cdevice.which);                SDL_JoystickID id = getInstanceId(controller);                if (!_openJoysticks.contains(id)) {                    // Joystick* joystick = new Joystick(id, SDL_GameControllerName(controller), controller);                    Joystick::Pointer joystick = std::make_shared<Joystick>(id, controller);                    _openJoysticks[id] = joystick;                    userInputMapper->registerDevice(joystick);                    QString name = SDL_GameControllerName(controller);                    emit joystickAdded(joystick.get());                    emit subdeviceConnected(getName(), name);                    _subdeviceNames << name;                }            } else if (event.type == SDL_CONTROLLERDEVICEREMOVED) {                if (_openJoysticks.contains(event.cdevice.which)) {                    Joystick::Pointer joystick = _openJoysticks[event.cdevice.which];                    _openJoysticks.remove(event.cdevice.which);                    userInputMapper->removeDevice(joystick->getDeviceID());                    QString name = SDL_GameControllerName(joystick->getGameController());                    emit joystickRemoved(joystick.get());                    _subdeviceNames.removeOne(name);                }            }        }    }}