diff --git a/launcher/MangoHud.cpp b/launcher/MangoHud.cpp index ab79f418b..ba16ddc4a 100644 --- a/launcher/MangoHud.cpp +++ b/launcher/MangoHud.cpp @@ -40,8 +40,8 @@ namespace MangoHud { QString getLibraryString() { - /* - * Check for vulkan layers in this order: + /** + * Guess MangoHud install location by searching for vulkan layers in this order: * * $VK_LAYER_PATH * $XDG_DATA_DIRS (/usr/local/share/:/usr/share/) @@ -49,8 +49,9 @@ QString getLibraryString() * /etc * $XDG_CONFIG_DIRS (/etc/xdg) * $XDG_CONFIG_HOME (~/.config) + * + * @returns Absolute path of libMangoHud.so if found and empty QString otherwise. */ - QStringList vkLayerList; { QString home = QDir::homePath(); @@ -85,7 +86,7 @@ QString getLibraryString() vkLayerList << FS::PathCombine(xdgConfigHome, "vulkan", "implicit_layer.d"); } - for (QString vkLayer : vkLayerList) { + for (const QString& vkLayer : vkLayerList) { // prefer to use architecture specific vulkan layers QString currentArch = QSysInfo::currentCpuArchitecture(); @@ -95,8 +96,8 @@ QString getLibraryString() QStringList manifestNames = { QString("MangoHud.%1.json").arg(currentArch), "MangoHud.json" }; - QString filePath = ""; - for (QString manifestName : manifestNames) { + QString filePath{}; + for (const QString& manifestName : manifestNames) { QString tryPath = FS::PathCombine(vkLayer, manifestName); if (QFile::exists(tryPath)) { filePath = tryPath; @@ -111,10 +112,23 @@ QString getLibraryString() auto conf = Json::requireDocument(filePath, vkLayer); auto confObject = Json::requireObject(conf, vkLayer); auto layer = Json::ensureObject(confObject, "layer"); - return Json::ensureString(layer, "library_path"); + QString libraryName = Json::ensureString(layer, "library_path"); + +#ifdef __GLIBC__ + // Check whether mangohud is usable on a glibc based system + if (!libraryName.isEmpty()) { + QString libraryPath = findLibrary(libraryName); + if (!libraryPath.isEmpty()) { + return libraryPath; + } + } +#else + // Without glibc return recorded shared library as-is. + return libraryName; +#endif } - return QString(); + return {}; } QString findLibrary(QString libName) diff --git a/launcher/minecraft/MinecraftInstance.cpp b/launcher/minecraft/MinecraftInstance.cpp index d119104fe..6befad5d6 100644 --- a/launcher/minecraft/MinecraftInstance.cpp +++ b/launcher/minecraft/MinecraftInstance.cpp @@ -608,7 +608,7 @@ QProcessEnvironment MinecraftInstance::createLaunchEnvironment() // dlsym variant is only needed for OpenGL and not included in the vulkan layer appendLib("libMangoHud_dlsym.so"); appendLib("libMangoHud_opengl.so"); - appendLib(mangoHudLib.fileName()); + preloadList << mangoHudLibString; } env.insert("LD_PRELOAD", preloadList.join(QLatin1String(":")));