Method startUsedByScan

apps/tools/Studio/StudioApp.cpp:426–642

}

void StudioApp::startUsedByScan()
{
    if (usedByScanning)
        return;

    usedByCancelFlag = true;
    if (usedByThread.joinable())
        usedByThread.join();
    usedByCancelFlag = false;

    std::string texName;
    if (selectedEntry.isVirtual())
        texName = normalizePath(selectedEntry.pboFilename);
    else
        texName = normalizePath(selectedEntry.name);
    if (texName.empty())
        return;

    std::string texBasename = texName;
    auto lastSlash = texBasename.rfind('/');
    if (lastSlash != std::string::npos)
        texBasename = texBasename.substr(lastSlash + 1);

    std::string selExt = selectedEntry.extension;
    std::transform(selExt.begin(), selExt.end(), selExt.begin(), ::tolower);
    bool scanModels =
        (selExt == ".paa" || selExt == ".pac" || selExt == ".tga" || selExt == ".jpg" || selExt == ".png");
    bool scanFonts = scanModels;

    usedByScanKey = selectedFile;
    usedByScanning = true;
    usedByScanDone = false;
    usedByScanProgress = 0;
    {
        std::lock_guard<std::mutex> lk(usedByMutex);
        assetUsedBy.clear();
    }

    // Engine types (QFBank, RString, Ref<>) are NOT thread-safe, so all PBO
    // extraction must happen here on the main thread before spawning the scan.
    struct ScanItem
    {
        std::string name;
        std::string inspectPath;
        std::string extension;
        bool needsCleanup;
    };
    std::vector<ScanItem> scanItems;

    std::unordered_map<std::string, std::vector<std::pair<int, std::string>>> pboGroups;

    for (const auto* list : {&osFiles, &vfsFiles})
    {
        for (const auto& f : *list)
        {
            std::string ext = f.extension;
            std::transform(ext.begin(), ext.end(), ext.begin(), ::tolower);
            if (!((scanModels && ext == ".p3d") || (scanFonts && ext == ".fxy")))