Winit touch is mapped to the wrong bounds.

[Quackdoc]

Also originally reported: YaLTeR/niri#2303

When using winit nested, the touch events do not align with the output

Wev is reporting that touching the bottom of the screen is ~720 despite the screen having a size reported of 1280x960, tesed on niri I did verify that winit does report the actual size properly WARN niri::input: size is Size<smithay::utils::geometry::Logical> { w: 1280, h: 960 }

The horizontal axis, w, seems to be aligned fine, it's just the height/vertical axis that has alignment issues.

EDIT: Localdesktop also seems to have similar issues, but I have only had the time to test with a nested niri client

[Quackdoc]

I added some logging, Seems like the issue is somewhere in the evt.position_transformed(size) stage.

Here is where niri calls it, I added some additional logging for log::warn!("position_transformed is is {:?}", evt.position_transformed(size));

Posting here for https://github.com/YaLTeR/niri/blob/d9833fc1c3de306f500662471ae001094813dbd5/src/input/mod.rs#L3663C1-L3663C22

2025-08-27T22:12:40.997257Z  WARN niri::input: precompute event is Point<smithay::utils::geometry::Raw> { x: 1236.015625, y: 949.5 }
2025-08-27T22:12:40.997279Z  WARN niri::input: output_geo is Rectangle<smithay::utils::geometry::Logical> { x: 0, y: 0, width: 1280, height: 960 }
2025-08-27T22:12:40.997299Z  WARN niri::input: size is is Size<smithay::utils::geometry::Logical> { w: 1280, h: 960 }
2025-08-27T22:12:40.997286Z  WARN smithay::backend::input: y transformed is 712.125
2025-08-27T22:12:40.997295Z  WARN niri::input: position_transformed is is Point<smithay::utils::geometry::Logical> { x: 1236.015625, y: 712.125 }
2025-08-27T22:12:40.997306Z  WARN smithay::backend::input: y transformed is 712.125
2025-08-27T22:12:40.997309Z  WARN niri::input: touch down event is Point<smithay::utils::geometry::Logical> { x: 1236.015625, y: 712.125 }