forked from unom/punktfunk
enricobuehlerandClaude Opus 5
a98174ebfa
The absolute-region ladder existed for one case a unit test can only simulate — two heads of the SAME size, where matching a libei region by the streamed mode is a coin flip — and that case had never been run against a real compositor. It was also unobservable: the log said which regions the EIS server offered, never which one a coordinate went into, so "the pointer is on the wrong monitor" could only be discovered by looking at a monitor. libei now reports the chosen region once per distinct answer, beside the existing miss warning: one covers an anchor that named nothing, this one covers an anchor that matched something, by saying which. `anchor-test` is the gate that reads it, in the shape mirror-test established: it enumerates the heads, SAYS whether the rig actually has two of the same size (a green run on a single-head box proves nothing), anchors at a named one (or `--none` for the A/B that makes the anchored run mean anything), and walks the corners. It refuses to run off libei rather than emitting a green result about a ladder that isn't there. On-glass on KWin 6.7.3 with `kwin_wayland --virtual --output-count 2` (regions 1920x1080+0+0 and +1920+0): unanchored picks +0+0, anchored at Virtual-1 picks +1920+0, anchored at Virtual-0 picks +0+0. That is open item 3 of design/per-monitor-portal-capture.md §8b, closed. Clearing the pin now logs too — setting one always did, and the streamed screen going back to virtual is the same size of change. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>