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@kenoss kenoss commented Nov 1, 2025

The current documentation for Flipped states that the "Plane is flipped vertically", but the [wl_output::transform] specification describes it as a "180 degree flip around a vertical axis". The implementation follows the latter. Therefore, the documentation for Transform::Flipped is incorrect and needs to be updated.

This patch corrects the documentation for Transform to remove ambiguity and align with the implementation and the Wayland specification.

For more details, see
https://github.com/kenoss/sabiniwm/blob/a4364ca211f97b672f92fb4de78f570f74404b90/note/issue-transform.md and #Transform-Flipped-doc-wrong.

[wl_output::transform] https://wayland.freedesktop.org/docs/html/apa.html#protocol-spec-wl_output-enum-transform

The current documentation for `Flipped` states that the "Plane is
flipped vertically", but the [wl_output::transform] specification
describes it as a "180 degree flip around a vertical axis". The
implementation follows the latter. Therefore, the documentation for
`Transform::Flipped` is incorrect and needs to be updated.

This patch corrects the documentation for `Transform` to remove
ambiguity and align with the implementation and the Wayland
specification.

For more details, see
https://github.com/kenoss/sabiniwm/blob/a4364ca211f97b672f92fb4de78f570f74404b90/note/issue-transform.md
and #Transform-Flipped-doc-wrong.

[wl_output::transform] https://wayland.freedesktop.org/docs/html/apa.html#protocol-spec-wl_output-enum-transform
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