Workaround for loading saves from other games on Steam Deck

find_path.cpp

// This is part of the function that finds the path for the previous games' saves for importing
// ideally you should also cache the result if this is required more than once
using namespace fs = std::filesystem;

std::string path = ph3lib::os::commonFolder(ph3lib::os::CommonFolder::SavedGames) + "/Falcom/Kuro/";
if (fs::exists(path)) {
    return path;
}

// special handling for when running on the Steam Deck (or a Wine environment in general)
PH3LIB_INFO("Saves folder {} doesn't exist, maybe Proton?", path);

const auto winePrefix = getenv("WINEPREFIX");
if (winePrefix) {
    PH3LIB_INFO(" -> found wine prefix: {}", winePrefix);
    if (!fs::exists(fs::path{ winePrefix })) {
        PH3LIB_INFO("     -> doesn't exist");
        return path;
    }
    // prefix + path_to_c_mount + (winpath - "C:\")
    path = ph3lib::utils::FilePath(winePrefix) + "/../../2138610/pfx/drive_c/" + path.substr(3);
    PH3LIB_INFO(" -> checking: {}", path);
    if (fs::exists(path)) {
        PH3LIB_INFO("     -> success!");
        return path;
    }
    PH3LIB_INFO("     -> doesn't exist");
} else {
    PH3LIB_INFO("WINEPREFIX env var not found");
}

For reference, the recommended way to obtain the path to the "Saved Games" directory is SHGetKnownFolderPath:

PWSTR savedGamesDirectory;
HRESULT hr = SHGetKnownFolderPath(FOLDERID_SavedGames, 0, nullptr, &savedGamesDirectory);
if (FAILED(hr)) {
    // handle error
}
// savedGamesDirectory now contains the path

Right -- that's what ph3lib::os::commonFolder does, but the example is a bit incomplete without that.

Heh, I figured it would. I posted my comment for the benefit of others who might stumble upon this gist.