Re: [LAD] LV2: Communicate from the DSP to the UI

On Mon, Nov 4, 2013 at 6:52 AM, Aurélien Leblond <blablack(a)gmail.com> wrote: It sounds logical to me, yeah. Doing it this way could be done by forging the Blank atom and then writing the float array as raw. You would need to map a few uris specifically for this to use inside of the blank object. seems like peak proptocol etc etc.. would could also be used here. I don't think there's a single host that supports any of those kinds of features though.... some fake code doing it with an atom object and a raw buffer, I didn't try to compile any of this let alone try it in a real plugin. float buffer [bufsize]; uint32_t object_type = this->map ("http://myuri#object"); uint32_t prop_type = this->map ("http://myuri#prop"); ... ForgeFrame frame; AtomObject obj (forge.write_blank (frame, 0, object_type)); forge.property_head (prop_type, 0); forge.write_raw (buffer, sizeof (float) * bufsize); forge.pop (frame); and then on the GUI side use an AtomObject::iterator if you want it to look more like c++. AtomObject obj (data_from_port_event); AtomObject::iterator prop = obj.begin(); float* buffer = 0; while (prop != obj.end()) { if (prop->key == prop_type) { buffer = LV2_ATOM_BODY (&prop->value); break; } ++prop; } if (buffer) do_something_with (buffer); regular object getting and querying obviously would also work on the GUI end. - guiext:notifyType atom:Blank ;