Function lazyInit

unity/src/native/ambisonic_decoder_effect.cpp:54–110

};

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 (numChannelsIn > 0)
    {
        status = IPL_STATUS_SUCCESS;
        if (!effect->ambisonicsDecodeEffect)
        {
            IPLAmbisonicsDecodeEffectSettings effectSettings;
            effectSettings.speakerLayout = speakerLayoutForNumChannels(numChannelsOut);
            effectSettings.hrtf = gHRTF[1];
            effectSettings.maxOrder = orderForNumChannels(numChannelsIn);

            status = iplAmbisonicsDecodeEffectCreate(gContext, &audioSettings, &effectSettings, &effect->ambisonicsDecodeEffect);
        }

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

    if (numChannelsIn > 0 && numChannelsOut > 0)
    {
        if (!effect->inBuffer.data)
            iplAudioBufferAllocate(gContext, numChannelsIn, audioSettings.frameSize, &effect->inBuffer);

        if (!effect->n3dInBuffer.data)
            iplAudioBufferAllocate(gContext, numChannelsIn, audioSettings.frameSize, &effect->n3dInBuffer);

        if (!effect->outBuffer.data)
            iplAudioBufferAllocate(gContext, numChannelsOut, audioSettings.frameSize, &effect->outBuffer);

        initFlags = static_cast<InitFlags>(initFlags | INIT_AUDIOBUFFERS);
    }

    return initFlags;
}