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fix retained glyph bottom clipping

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gamer147
2026-07-30 20:29:39 -04:00
parent d9f24c69ef
commit 49722c55fe
9 changed files with 185 additions and 13 deletions
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docs/phase-a-slice-plan.md
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@@ -3674,6 +3674,15 @@ surface's z-order, alpha, tint, fade, transform, clipping, capture, and lifetime
Validation: engine **580/580**, zero-warning Godot build, and threaded `SELFTEST OK` in both forced
`portable-godot-textserver` and forced `windows-gdi-gray4` modes.
**Bottom-edge clipping follow-up (2026-07-30):** retained publication originally reused the native
measured-cell rectangle as its exact source crop. Direct GDI probing confirmed that the glyph black-box
bitmap, plus the mode-3 outline, can extend below that cell even though the pixels are present in the
layout surface. The native `AdvRetainedGlyphRecord` remains unchanged for layout and reconstruction; each
transient placement now carries a separate vertically ink-safe publication rectangle. Horizontal edges
remain cell-bounded so timed reveal cannot expose a neighboring glyph. Synthetic compositor/publication
regressions pass, the Godot build is clean, and forced exact and portable self-tests both report
`SELFTEST OK`.
## Persistence native-format reconnaissance complete (2026-07-24)
The deferred save/profile ownership question now has a compatibility-mode answer. The remaining native