////  GPUIdent.h//  libraries/shared/src////  Provides information about the GPU////  Created by Howard Stearns on 4/16/16.//  Copyright 2016 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// #ifndef hifi_GPUIdent_h#define hifi_GPUIdent_h #include <cstdint>#include <QString>#include <memory>#include <nlohmann/json.hpp>#include <vector> class GPUIdent{ public:    uint64_t getMemory() { return _dedicatedMemoryMB; }    QString getName() { return _name; }    QString getDriver() { return _driver; }    bool isValid() { return _isValid; }    const std::vector<nlohmann::json>& getOutput() { return _output; }     // E.g., GPUIdent::getInstance()->getMemory();    static GPUIdent* getInstance(const QString& vendor = "", const QString& renderer = "") { return _instance.ensureQuery(vendor, renderer); }private:    std::vector<nlohmann::json> _output;    uint64_t _dedicatedMemoryMB { 0 };    QString _name { "" };    QString _driver { "" };    bool _isQueried { false };    bool _isValid { false };    static GPUIdent _instance;    GPUIdent* ensureQuery(const QString& vendor, const QString& renderer);}; #endif // hifi_GPUIdent_h