Function AllocBuffer

3rdparty/openal/al/buffer.cpp:309–327

}

ALbuffer *AllocBuffer(ALCdevice *device)
{
    auto sublist = std::find_if(device->BufferList.begin(), device->BufferList.end(),
        [](const BufferSubList &entry) noexcept -> bool
        { return entry.FreeMask != 0; }
    );

    auto lidx = static_cast<ALuint>(std::distance(device->BufferList.begin(), sublist));
    auto slidx = static_cast<ALuint>(CTZ64(sublist->FreeMask));

    ALbuffer *buffer{::new (sublist->Buffers + slidx) ALbuffer{}};

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

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

    return buffer;
}

void FreeBuffer(ALCdevice *device, ALbuffer *buffer)
{