Function lazyInit

unity/src/native/spatialize_effect.cpp:173–323

};

InitFlags lazyInit(UnityAudioEffectState* state,
                   int numChannelsIn,
                   int numChannelsOut)
{
    assert(state);

    auto initFlags = INIT_NONE;

    if (!gContext)
        return initFlags;

    if (!gHRTF[1])
        return initFlags;

    auto effect = state->GetEffectData<State>();
    if (!effect)
        return initFlags;

    IPLAudioSettings audioSettings;
    audioSettings.samplingRate = state->samplerate;
    audioSettings.frameSize = state->dspbuffersize;

    auto status = IPL_STATUS_SUCCESS;

    if (numChannelsOut > 0)
    {
        if (!effect->panningEffect)
        {
            IPLPanningEffectSettings effectSettings{};
            effectSettings.speakerLayout = speakerLayoutForNumChannels(numChannelsOut);

            status = iplPanningEffectCreate(gContext, &audioSettings, &effectSettings, &effect->panningEffect);
        }

        if (status == IPL_STATUS_SUCCESS)
        {
            if (!effect->binauralEffect)
            {
                IPLBinauralEffectSettings effectSettings;
                effectSettings.hrtf = gHRTF[1];

                status = iplBinauralEffectCreate(gContext, &audioSettings, &effectSettings, &effect->binauralEffect);
            }
        }

        if (status == IPL_STATUS_SUCCESS)
            initFlags = static_cast<InitFlags>(initFlags | INIT_BINAURALEFFECT);
    }

    if (numChannelsIn > 0)
    {
        status = IPL_STATUS_SUCCESS;
        if (!effect->directEffect)
        {
            IPLDirectEffectSettings effectSettings;
            effectSettings.numChannels = numChannelsIn;

            status = iplDirectEffectCreate(gContext, &audioSettings, &effectSettings, &effect->directEffect);