////  PerformanceManager.h//  interface/src/////  Created by Sam Gateau on 2019-05-29.//  Copyright 2019 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_PerformanceManager_h#define hifi_PerformanceManager_h #include <string> #include <SettingHandle.h>#include <shared/ReadWriteLockable.h> class PerformanceManager {public:    enum PerformancePreset {        UNKNOWN = 0, // Matching the platform Tier profiles enumeration for coherence        LOW_POWER,        LOW,        MID,        HIGH,        CUSTOM,        PROFILE_COUNT    };    static bool isValidPerformancePreset(int value) { return (value >= PerformancePreset::UNKNOWN && value <= PerformancePreset::CUSTOM); }     PerformanceManager();    ~PerformanceManager() = default;     // Setup the PerformanceManager which will enforce the several settings to match the Preset    // If evaluatePlatformTier is true, the Preset is evaluated from the Platform::Profiler::profilePlatform()    void setupPerformancePresetSettings(bool evaluatePlatformTier);     void setPerformancePreset(PerformancePreset performancePreset);    PerformancePreset getPerformancePreset() const; private:    mutable ReadWriteLockable _performancePresetSettingLock;    Setting::Handle<int> _performancePresetSetting { "performancePreset", PerformanceManager::PerformancePreset::UNKNOWN };     // The concrete performance preset changes    void applyPerformancePreset(PerformanceManager::PerformancePreset performancePreset);}; #endif