Find track of device

[ffx]

Hi,

I have an AudioDevice object and want to find its track. How to do that? Seems like I can’t compare the object with a trackDevice object directly…

This seems to be too few comparison then:

function EQHelper:findDeviceInTracks(device) 
  for _, track in pairs(sng.tracks) do
    if (track.type ~= renoise.Track.TRACK_TYPE_GROUP) then
      for _, trackDevice in pairs(track.devices) do
        if (device.display_name == trackDevice.display_name and device.device_path == trackDevice.device_path) then
          local isSame = true
          for x = 1, #device.parameters do
            if (device.parameters[x].value ~= trackDevice.parameters[x].value) then
              isSame = false
              break
            end
          end
          if (isSame == true) then
            return track
          end
        end
      end
    end
  end

  return nil
end

Would like to compare the object memory pointers directly or something… Maybe I already did that, but I forgot how.

[joule]

local is_same = rawequal(one_audiodevice, another_audiodevice)

(personally, I would also overload the renoise classes with things like renoise.Track.track_index et c, just to compartmentalize and simplify code structure)

[ffx]

Ah thanks, can you give me an example how to overload the AudioDevice object, so it contains the track index and name? I printr-ed the audiodevice vs trackaudiodeivce objects, and they seem to be not the same, having different “userdata”.

[joule]

The principle is found here (bottom example): Lua: Renoise.song().tracks[].members[].track_Index - #4 by taktik

When I was a bit deeper into Renoise API, I used to wrap my own object creation that also passed a .parent_object into all objects. Very neat and practical, but the syntax is not clear to my memory.

[ffx]

Hm, actually rawequal(device, trackDevice) works fine! Nice. Yeah providing some overloads to all those objects would be a good update. Also some oo-style stuff which completely is missing now. device:getTrack()

function findDeviceInTracks(device) 
  for _, track in pairs(sng.tracks) do
    if (track.type ~= renoise.Track.TRACK_TYPE_GROUP) then
      for _, trackDevice in pairs(track.devices) do
        if (rawequal(device, trackDevice)) then
           return track
        end
      end
    end
  end

  return nil
end