////  SDL2Manager.cpp//  interface/src/devices////  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 <qapplication.h> #include <HFActionEvent.h>#include <HFBackEvent.h>#include <PerfStat.h> #include "Application.h" #include "SDL2Manager.h" #ifdef HAVE_SDL2SDL_JoystickID SDL2Manager::getInstanceId(SDL_GameController* controller) {    SDL_Joystick* joystick = SDL_GameControllerGetJoystick(controller);    return SDL_JoystickInstanceID(joystick);}#endif SDL2Manager::SDL2Manager() :#ifdef HAVE_SDL2_openJoysticks(),#endif_isInitialized(false){#ifdef HAVE_SDL2    bool initSuccess = (SDL_Init(SDL_INIT_GAMECONTROLLER) == 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);                    _openJoysticks[id] = joystick;                    joystick->registerToUserInputMapper(*Application::getUserInputMapper());                    joystick->assignDefaultInputMapping(*Application::getUserInputMapper());                    emit joystickAdded(joystick);                }            }        }                _isInitialized = true;    } else {        qDebug() << "Error initializing SDL2 Manager";    }#endif} SDL2Manager::~SDL2Manager() {#ifdef HAVE_SDL2    qDeleteAll(_openJoysticks);        SDL_Quit();#endif} SDL2Manager* SDL2Manager::getInstance() {    static SDL2Manager sharedInstance;    return &sharedInstance;} void SDL2Manager::focusOutEvent() {#ifdef HAVE_SDL2    for (auto joystick : _openJoysticks) {        joystick->focusOutEvent();    }#endif} void SDL2Manager::update() {#ifdef HAVE_SDL2    if (_isInitialized) {        for (auto joystick : _openJoysticks) {            joystick->update();        }                PerformanceTimer perfTimer("SDL2Manager::update");        SDL_GameControllerUpdate();        SDL_Event event;        while (SDL_PollEvent(&event)) {            if (event.type == SDL_CONTROLLERAXISMOTION) {                Joystick* joystick = _openJoysticks[event.caxis.which];                if (joystick) {                    joystick->handleAxisEvent(event.caxis);                }            } else if (event.type == SDL_CONTROLLERBUTTONDOWN || event.type == SDL_CONTROLLERBUTTONUP) {                Joystick* joystick = _openJoysticks[event.cbutton.which];                if (joystick) {                    joystick->handleButtonEvent(event.cbutton);                }                                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);                } else if (event.cbutton.button == SDL_CONTROLLER_BUTTON_A) {                    // this will either start or stop a global action event                    QEvent::Type actionType = (event.type == SDL_CONTROLLERBUTTONDOWN)                    ? HFActionEvent::startType()                    : HFActionEvent::endType();                                        // global action events fire in the center of the screen                    Application* app = Application::getInstance();                    PickRay pickRay = app->getCamera()->computePickRay(app->getTrueMouseX(),                                                                       app->getTrueMouseY());                    HFActionEvent actionEvent(actionType, pickRay);                    qApp->sendEvent(qApp, &actionEvent);                }                            } 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);                    _openJoysticks[id] = joystick;                    joystick->registerToUserInputMapper(*Application::getUserInputMapper());                    joystick->assignDefaultInputMapping(*Application::getUserInputMapper());                    emit joystickAdded(joystick);                }            } else if (event.type == SDL_CONTROLLERDEVICEREMOVED) {                Joystick* joystick = _openJoysticks[event.cdevice.which];                _openJoysticks.remove(event.cdevice.which);                Application::getUserInputMapper()->removeDevice(joystick->getDeviceID());                emit joystickRemoved(joystick);            }        }    }#endif}