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1 SPLASH ADDRESSING (was blocking P3). No content predicate exists: design size fails (every extra composable bundle sampled is 1280x720, like every screen) and element count fails (fragments run 2..15, the splash halves are 3 and 7). But GP_TITLE needs none -- `--all` adds exactly four bundles there and all four are real screens, with the --all index equal to the pak entry index 1:1. And there are TWO splash screens: 11/14 are the developer logos, 10/13 are the SQUARE ENIX publisher wordmark, which the port did not have and which the boot shows first. 2 FADE-OUT (was blocking P3). It is (a), and it is bigger than the fade quad. Every element ends on exactly ONE untimed keyframe, which rules out (b); that block is where the screen plays out -- quad to a=255, buttons/labels/glows to a=0, frames hold. (c) is refuted by a null test that discriminates: a black quad alone holds the button/background brightness ratio constant, and through the fade it falls 6.50 -> 1.94, 3.4x monotonic. 3 FOCUS (saves P5 rework). Over-vs-instead is unobservable -- the focused sprite covers the base at 100.0% of base-visible pixels on three pairs once aligned (true offset (7,7); the centre alignment reads a misleading 78-84%), and compositing both ways differs by RMSE 1.1 inside the button rect. The real defect is the focus record's SECOND element: ptbtn0Nf.rat declares ptbtneff01.t32 (a 42x46 glowing ring, focus only) plus the bright label, where the base declares one sprite. That ring is the marker the port draws nowhere. 5 GAMMA. The capture is not neutral: capture ~ 255*(render/255)^g, g ~ 1.34-1.49, and the chain says it is a ramp the GAME installed, not a capture artefact. So RMSE against captures has a floor. Reach stated: the flat patches are all dark (render ~0-60), so midtones and highlights are unconstrained. 4 ROTATION is a human's call and is recorded in MISSION, not acted on -- the port rotating while the reference renderer does not would make verify-screen report a large diff meaning "the port is right". The RE half is answered: rotation is about the declared pivot, measured against a GPU capture. The focus record's +20 element-count word is marked 🟡 not ✅ -- read on GP_TITLE's ten button records only; the disc-wide check is written and still running.
71 lines
3.1 KiB
Markdown
71 lines
3.1 KiB
Markdown
# ❔ How to address the developer-logo splash — no content rule, but `GP_TITLE` needs none
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**Status:** ❔ **undecodable as a general predicate, with reach** — and ✅
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**exact for `GP_TITLE`**, which is the only archive in scope. Answers the port's
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*"I need a predicate, not an index."*
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## The ask
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The splash has no `.rat` layout child, so `is_build` rejects it and it is
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reachable only through `--all` / `is_composable`, which disc-wide also admits
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~1 786 non-screen bundles. The port wanted a rule that admits the splash and not
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those.
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## ✅ In `GP_TITLE` the problem does not arise
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```
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$ sylpheed-cli screen list GP_TITLE.pak 12 builds — entries 0-9, 12, 15
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$ sylpheed-cli screen list --all GP_TITLE.pak 16 bundles — entries 0-15
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```
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`--all` adds exactly **four** bundles: entries **10, 11, 13, 14**. All four are
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real screens, and **not one fragment appears**. So within this archive
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`is_composable` *is* the predicate — it is exact, with no filtering needed.
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⚠️ And the renumbering worry is moot here: in `GP_TITLE` the `--all` index equals
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the pak entry index **1:1 across all 16**. That is an accident of this archive
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having 16 composable bundles at entries 0…15, not a general property — but it
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means the port can address these by entry index without the index meaning
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something different from elsewhere.
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## ✅ And there are TWO splash screens, not one
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Rendered with `screen render --all --build <n> --primitives`
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([grid](captures/title-builds/splash-both-halves-rendered.png)):
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| entry | elements | what it draws |
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|---|---|---|
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| **10** | 3 | **SQUARE ENIX** publisher wordmark, `™` |
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| **11** | 7 | **GAME ARTS** / **SETA** / **studio anima** developer logos |
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| **13** | 3 | SQUARE ENIX, `®` — the twin of 10 |
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| **14** | 7 | the twin of 11 |
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⚠️ **The port has 11/14 and is missing 10/13** — the publisher half, which is the
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*first* thing the boot sequence shows. The two halves differ only by the
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trademark glyph (`™` on 10, `®` on 13), which is the region/language split this
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archive uses everywhere else.
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All four draw every element they declare (3/3 and 7/7), so nothing is silently
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dropped.
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## ❔ The general rule: looked for, not found
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Two candidate predicates, both dead:
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* **Design size.** Every extra composable bundle sampled is **1280×720** — the
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same as every screen. It does not separate anything.
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* **Element count.** The "two-element fragment" story holds in
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`GP_MISSION_SELECT` (10 extras, all 2 elements) and **fails elsewhere**:
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`GP_OPTIONS`'s extras have 5 and 15 elements, `GP_SAVE_LOAD`'s have 4, 5, 6, 9
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and 13. The splash's own halves have 3 and 7. The ranges overlap, so no
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threshold separates them.
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Reach: three archives sampled beyond `GP_TITLE`, chosen because they have
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non-build composables. Not a disc-wide sweep. A rule may exist in a field not
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looked at — the `.prm` fade quad is one candidate
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([transitions](screen-transitions.md) shows overlays lack it), untested here.
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**So: the port is authoring this.** Locating the splash by entry index is the
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honest description, and `name_source` should say it was located by index and not
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by a rule.
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