////  PerformanceManager.cpp//  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//#include "PerformanceManager.h" #include <platform/Platform.h>#include <platform/PlatformKeys.h>#include <platform/Profiler.h> #include "scripting/RenderScriptingInterface.h"#include "LODManager.h" PerformanceManager::PerformanceManager(){    setPerformancePreset((PerformancePreset) _performancePresetSetting.get());} void PerformanceManager::setupPerformancePresetSettings(bool evaluatePlatformTier) {    if (evaluatePlatformTier || (getPerformancePreset() == UNKNOWN)) {        // If evaluatePlatformTier, evalute the Platform Tier and assign the matching Performance profile by default.        // A bunch of Performance, Simulation and Render settings will be set to a matching default value from this         // Here is the mapping between pelatformTier and performance profile        const std::array<PerformanceManager::PerformancePreset, platform::Profiler::NumTiers> platformToPerformancePresetMap = { {            PerformanceManager::PerformancePreset::MID,  // platform::Profiler::UNKNOWN            PerformanceManager::PerformancePreset::LOW,  // platform::Profiler::LOW            PerformanceManager::PerformancePreset::MID,  // platform::Profiler::MID            PerformanceManager::PerformancePreset::HIGH  // platform::Profiler::HIGH        } };         // What is our profile?        auto platformTier = platform::Profiler::profilePlatform();         // Then let's assign the performance preset setting from it        setPerformancePreset(platformToPerformancePresetMap[platformTier]);    }} void PerformanceManager::setPerformancePreset(PerformanceManager::PerformancePreset preset) {    if (isValidPerformancePreset(preset) && (getPerformancePreset() != preset)) {        _performancePresetSettingLock.withWriteLock([&] {            _performancePresetSetting.set((int)preset);        });         applyPerformancePreset(preset);    }} PerformanceManager::PerformancePreset PerformanceManager::getPerformancePreset() const {    PerformancePreset preset = PerformancePreset::UNKNOWN;     preset = (PerformancePreset) _performancePresetSettingLock.resultWithReadLock<int>([&] {        return _performancePresetSetting.get();    });     return preset;} void PerformanceManager::applyPerformancePreset(PerformanceManager::PerformancePreset preset) {     // Ugly case that prevent us to run deferred everywhere...    bool isDeferredCapable = platform::Profiler::isRenderMethodDeferredCapable();    auto masterDisplay = platform::getDisplay(platform::getMasterDisplay());        // eval recommanded PPI and Scale    float recommandedPpiScale = 1.0f;    const float RECOMMANDED_PPI[] = { 200.0f, 120.f, 160.f, 250.f};    if (!masterDisplay.empty() && masterDisplay.count(platform::keys::display::ppi)) {        float ppi = masterDisplay[platform::keys::display::ppi];        // only scale if the actual ppi is higher than the recommended ppi        if (ppi > RECOMMANDED_PPI[preset]) {            // make sure the scale is no less than a quarter            recommandedPpiScale = std::max(0.25f, RECOMMANDED_PPI[preset] / (float) ppi);        }    }     switch (preset) {        case PerformancePreset::HIGH:            RenderScriptingInterface::getInstance()->setRenderMethod( ( isDeferredCapable ?                RenderScriptingInterface::RenderMethod::DEFERRED :                 RenderScriptingInterface::RenderMethod::FORWARD ) );             RenderScriptingInterface::getInstance()->setViewportResolutionScale(recommandedPpiScale);                        RenderScriptingInterface::getInstance()->setShadowsEnabled(true);            qApp->getRefreshRateManager().setRefreshRateProfile(RefreshRateManager::RefreshRateProfile::REALTIME);             DependencyManager::get<LODManager>()->setWorldDetailQuality(WORLD_DETAIL_HIGH);                    break;        case PerformancePreset::MID:            RenderScriptingInterface::getInstance()->setRenderMethod((isDeferredCapable ?                RenderScriptingInterface::RenderMethod::DEFERRED :                RenderScriptingInterface::RenderMethod::FORWARD));             RenderScriptingInterface::getInstance()->setViewportResolutionScale(recommandedPpiScale);             RenderScriptingInterface::getInstance()->setShadowsEnabled(false);            qApp->getRefreshRateManager().setRefreshRateProfile(RefreshRateManager::RefreshRateProfile::INTERACTIVE);            DependencyManager::get<LODManager>()->setWorldDetailQuality(WORLD_DETAIL_MEDIUM);         break;        case PerformancePreset::LOW:            RenderScriptingInterface::getInstance()->setRenderMethod(RenderScriptingInterface::RenderMethod::FORWARD);            RenderScriptingInterface::getInstance()->setShadowsEnabled(false);            qApp->getRefreshRateManager().setRefreshRateProfile(RefreshRateManager::RefreshRateProfile::ECO);             RenderScriptingInterface::getInstance()->setViewportResolutionScale(recommandedPpiScale);             DependencyManager::get<LODManager>()->setWorldDetailQuality(WORLD_DETAIL_LOW);         break;        case PerformancePreset::UNKNOWN:        default:            // Do nothing anymore        break;    }}