////  JoystickManager.cpp//  interface/src/devices////  Created by Andrzej Kapolka on 5/15/14.//  Copyright 2014 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 <QtDebug> #ifdef HAVE_SDL#include <SDL.h>#undef main#endif #include <PerfStat.h> #include "JoystickScriptingInterface.h" JoystickScriptingInterface& JoystickScriptingInterface::getInstance() {    static JoystickScriptingInterface sharedInstance;    return sharedInstance;} JoystickScriptingInterface::JoystickScriptingInterface() :    _openJoysticks(),    _availableDeviceNames(){#ifdef HAVE_SDL    SDL_Init(SDL_INIT_JOYSTICK);        int joystickCount = SDL_NumJoysticks();        for (int i = 0; i < joystickCount; i++) {        _availableDeviceNames << SDL_JoystickName(i);    }#endif} JoystickScriptingInterface::~JoystickScriptingInterface() {    qDeleteAll(_openJoysticks);    #ifdef HAVE_SDL    SDL_Quit();#endif} void JoystickScriptingInterface::update() {#ifdef HAVE_SDL    PerformanceTimer perfTimer("JoystickScriptingInterface::update");    SDL_JoystickUpdate();        foreach(Joystick* joystick, _openJoysticks) {        joystick->update();    }    #endif} Joystick* JoystickScriptingInterface::joystickWithName(const QString& name) {    Joystick* matchingJoystick = _openJoysticks.value(name);    if (!matchingJoystick) {        // we haven't opened a joystick with this name yet - enumerate our SDL devices and see if it exists        int joystickCount = SDL_NumJoysticks();                for (int i = 0; i < joystickCount; i++) {            if (SDL_JoystickName(i) == name) {                matchingJoystick = _openJoysticks.insert(name, new Joystick(name, SDL_JoystickOpen(i))).value();                break;            }        }                qDebug() << "No matching joystick found with name" << name << "- returning NULL pointer.";    }        return matchingJoystick;}