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https://github.com/RetroDECK/ES-DE.git
synced 2025-01-17 22:55:38 +00:00
Found a better method to limit buffer swaps during splash screen rendering.
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@ -25,6 +25,8 @@
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#include "views/GamelistView.h"
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#include "views/ViewController.h"
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#include <SDL2/SDL_timer.h>
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#include <fstream>
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#include <pugixml.hpp>
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#include <random>
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@ -511,6 +513,7 @@ bool SystemData::loadConfig()
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const bool splashScreen {Settings::getInstance()->getBool("SplashScreen")};
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float systemCount {0.0f};
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float loadedSystems {0.0f};
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long unsigned int lastTime {0};
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for (pugi::xml_node system {systemList.child("system")}; system;
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system = system.next_sibling("system")) {
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@ -531,10 +534,17 @@ bool SystemData::loadConfig()
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path = system.child("path").text().get();
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if (splashScreen) {
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const long unsigned int curTime {SDL_GetTicks64()};
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const long unsigned int deltaTime {curTime - lastTime};
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lastTime = curTime;
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++loadedSystems;
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const float progress {glm::mix(0.0f, 0.5f, loadedSystems / systemCount)};
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Window::getInstance()->renderSplashScreen(Window::SplashScreenState::SCANNING,
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progress);
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// This prevents Renderer::swapBuffers() from being called excessively which
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// could lead to significantly longer application startup times.
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if (deltaTime > 15) {
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const float progress {glm::mix(0.0f, 0.5f, loadedSystems / systemCount)};
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Window::getInstance()->renderSplashScreen(Window::SplashScreenState::SCANNING,
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progress);
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}
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}
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auto nameFindFunc = [&] {
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@ -707,15 +707,7 @@ int main(int argc, char* argv[])
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AudioManager::getInstance();
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MameNames::getInstance();
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ThemeData::populateThemeSets();
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// We need to temporarily disable VSync as the splash screen may otherwise slow down
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// application startup significantly due to excessive swapBuffers() calls.
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const bool splashScreen {Settings::getInstance()->getBool("SplashScreen")};
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const bool vSync {Settings::getInstance()->getBool("VSync")};
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if (splashScreen && vSync)
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SDL_GL_SetSwapInterval(0);
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loadSystemsReturnCode loadSystemsStatus {loadSystemConfigFile()};
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if (splashScreen && vSync)
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SDL_GL_SetSwapInterval(1);
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if (loadSystemsStatus) {
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// If there was an issue parsing the es_systems.xml file, display an error message.
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@ -1104,6 +1104,9 @@ void ViewController::preload()
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{
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unsigned int systemCount {static_cast<unsigned int>(SystemData::sSystemVector.size())};
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if (Settings::getInstance()->getBool("SplashScreen"))
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mWindow->renderSplashScreen(Window::SplashScreenState::POPULATING, 0.5f);
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// This reduces the amount of texture pop-in when loading theme extras.
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if (!SystemData::sSystemVector.empty())
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getSystemListView();
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