Function AllocEffect

Engine/lib/openal-soft/al/effect.cpp:180–198

}

ALeffect *AllocEffect(ALCdevice *device)
{
    auto sublist = std::find_if(device->EffectList.begin(), device->EffectList.end(),
        [](const EffectSubList &entry) noexcept -> bool
        { return entry.FreeMask != 0; }
    );
    auto lidx = static_cast<ALuint>(std::distance(device->EffectList.begin(), sublist));
    auto slidx = static_cast<ALuint>(al::countr_zero(sublist->FreeMask));

    ALeffect *effect{::new (sublist->Effects + slidx) ALeffect{}};
    InitEffectParams(effect, AL_EFFECT_NULL);

    /* Add 1 to avoid effect ID 0. */
    effect->id = ((lidx<<6) | slidx) + 1;

    sublist->FreeMask &= ~(1_u64 << slidx);

    return effect;
}

void FreeEffect(ALCdevice *device, ALeffect *effect)
{