Method LoadConfig

engine/PoseidonOpenAL/SoundSystemOAL.cpp:632–673

struct LiveAudioEnv : AudioConfig::Environment
{
    const SoundSystemOAL* sys;
    explicit LiveAudioEnv(const SoundSystemOAL* s) : sys(s) {}
    std::vector<std::string> ListOutputDevices() const override
    {
        return sys ? sys->ListOutputDevices() : std::vector<std::string>{};
    }
    std::vector<std::string> ListInputDevices() const override { return VoNCapture::listDevices(); }
};
} // namespace

void SoundSystemOAL::LoadConfig()
{
    const std::string path = AudioConfigPath();

    AudioConfig cfg;
    if (!cfg.Load(path))
    {
        // Missing or unparseable file → eager-write defaults so the file
        // exists for the user to find and edit.
        cfg.LoadDefaults();
        cfg.Save(path);
        LOG_INFO(Audio, "LoadConfig: created defaults at '{}'", path);
    }

    // Validate against the live device lists.  If anything was reset
    // (volume out of range, output/input device gone), we keep the
    // normalized values in memory but DO NOT write them back — the
    // user might reconnect the device later, and we don't want one
    // boot to silently lose their setting.  Persistence on a normalized
    // field happens when AudioPage::Unmount calls SaveConfig().
    LiveAudioEnv env(this);
    if (cfg.Normalize(env))
        LOG_INFO(Audio, "LoadConfig: normalized invalid fields (not persisted)");

    // Apply to runtime.  UI scale is 0..100 percent; backend scale is
    // 0..10 floats (the IAudioSystem contract).
    SetCDVolume(cfg.musicVolume / 10.0f);
    SetWaveVolume(cfg.effectsVolume / 10.0f);
    SetSpeechVolume(cfg.speechVolume / 10.0f);
    if (cfg.eaxEnabled && _canEAX)
        EnableEAX(true);

    if (!cfg.outputDevice.empty())
        SwitchOutputDevice(cfg.outputDevice.c_str());
    // Input device picker is owned by the AudioPage UI — no runtime