Touch input does not work correctly on Rotate NDS screens.

[Mijail]

Hey!

Nice tutorial. I tried to make a book mode version for the landscape mode (I was tired of having to use lock orientation to play book mode games like rythm heaven or hotel dusk)

Since the screens are rotated by the game when switching to landscape they appear rotated, so what I did was to rotate the screens using a filter.
The problem though, is that the touch screen should be rotated as well, otherwise X movement appears like Y and Y as X but that cannot be done.
I tried setting:

"inputs": {
    "x": "touchScreenY",
    "y": "touchScreenX"
}

which works for the X coordinate but the Y one is inverted. (trying "-touchScreenX" did not work.
Is there a way to rotate the touch screen? It would be great if we could rotate the frames in general, not only the screens.

Here is the skin: bookmode.deltaskin.zip
Rythm Heaven is a good game to see what is going on.

Please let me know if there is another way to achieve what I want to do for landscape, though.

Thanks!