Records the settle-time decode, and corrects two claims it overturns.
docs/re/structures/ui-settle-time.md is the finding: a settled screen is one
instant every element is posed at, the disc names it (the midpoint of the
longest keyframe-free interval), and the title's arc closes from 33.22 to
11.79 with the clipped-pixel count landing on the console's 1459 within 0.5%.
Includes the disc-wide reach -- only 30% of bundles have a window wide enough
to trust -- and a three-way figure.
Withdrawn in ui-rotation-implemented.md:
* "Flat. No minimum." was not a property of rotation. `at` posed LEAVES ONLY,
so the scan moved the light sweeps and never touched the top-level flashes.
* "our renderer does not draw ptlogo1/ptlogo2 at all" is wrong. Both are
drawn; the four elements the diagnostic named are kind-0x4 ghosts sharing
their template's name. Hiding the real ones makes the error WORSE by
+5.20 and +7.47.
* Its 10.92 baseline is not reproducible -- 14.07 at its own pre-change tag
and 14.07 today -- so the "1.7% better" verdict rests on an unrecorded
recipe. Flagged in title-residual-tone-vs-geometry.md too.
METHOD.md gains two traps: a shared CARGO_TARGET_DIR makes a `git worktree`
build silently replace the binary you run next (it cost three renders here,
caught only because a missing flag was a hard error rather than a wrong
number); and an aggregate computed per-element is not a state of the system.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Found by inspection while the disc tests ran. The leaf branch set its
something-was-drawn flag unconditionally after calling blit, but blit returns
early on a zero scale -- collapsed to nothing, not unset. So a scale-0 leaf would
have been counted as drawn, its parent skipped, and the element blanked outright.
pgloading_loop5 s leaf is scale (0,0), so this was live on all four loading
screens, and scale-0 is one of the failures this corpus is already named for.
Fixed by skipping a zero-scale leaf pose before it can claim the draw; the
loading builds render afterwards at 4.0 percent non-black.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The human chose Option A: teach sylpheed-formats own renderer to draw
rotation_deg so it and the port stay comparable and verify-screen keeps meaning
someone is wrong.
Three pieces, because rotation alone does nothing on the title. blit gains a
rotated path that draws by inverse mapping over the rotated bounding box, turning
about the pivot, whose absolute position is invariant under scale; zero rotation
keeps the original forward-mapped path byte for byte so non-rotating screens
cannot regress. compose draws a nested .rat leaf when the leaf carries geometry
the parent does not, which is the sweeps case, but not as a blanket rule since a
button s leaf duplicates its parent. And --at poses leaves at a keyframe time,
because the sweeps hold off-screen at x=1521 so a resting composite omits them.
A trap found the hard way: posing EVERYTHING at one global time is wrong, because
a top-level group s final keyframes are its exit ramp and rest() deliberately
stops before them. Posing the title at t=358 walked every parent into its exit
and drove the disagreement from 10.92 to 61.74. So at poses leaves only.
Controls: 0 and 360 degrees byte-identical to the unrotated path, 90 degrees
swaps a 10x4 to 4x10, area conserved within 15 percent, centroid stays on the
pivot. 116 lib tests pass, main_menu unchanged at 9.26.
And the verification did not show what it was meant to, which is reported rather
than buried: scanning the pose time against the title capture gives 10.73 to
11.17 against a 10.92 baseline -- flat, no minimum, best 1.7 percent. The
whole-frame mean is dominated by the tone curve, and the renderer still does not
draw ptlogo1/ptlogo2 at all, which is a far larger spatial gap than two
translucent sweeps. So rotation is correct in isolation and no screen regressed,
but whether it closes the port s 1.81 percent is not established here.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
