Commit Graph

2 Commits

Author SHA1 Message Date
Sylpheed port agent
0d2bf1f241 export: reach the splash by authored entry index, and key names by entry
There were TWO splash screens and this port had neither. Entries 11/14 are the
developer logos; entries 10/13 are the SQUARE ENIX publisher wordmark, the first
thing the boot shows, which nothing in this project had noticed.

They have no .rat layout child so `is_build` cannot see them, and the RE agent
established that no CONTENT rule can either: design size fails (every extra
composable bundle sampled is 1280x720, same as every screen) and element count
fails (fragments run 2..15 elements in GP_OPTIONS/GP_SAVE_LOAD, the splash
halves are 3 and 7 -- the ranges overlap).

So `screen_builds` is `is_build` plus an authored allow-list of ENTRY INDICES,
each carrying a `why` that says it is a locator and not a claim. An allow-list
rather than a loosened predicate because this is safe in GP_TITLE and would not
be in general: there, widening adds exactly four bundles and all four are real
screens, zero fragments.

screen_names.json is rekeyed from enumeration ordinal to pak entry. Widening
renumbers ordinals, and a name that moves when the enumeration rule changes is
not a name -- the file always called the entry the stronger locator, and it is
now the only stable one. The two unnamed plates therefore renamed build_10/11 ->
build_12/15; they were always locators, and now they locate the right thing.

All 16 export and validate.
2026-08-29 08:27:41 +00:00
Sylpheed port agent
8dd0577e01 export: P0 — GP_TITLE's screens and sprites into the open tree
`sylpheed-export export` reads `dat/GP_TITLE.pak`, enumerates its twelve screen
builds, and writes each as one `sylpheed.screen/2` document with its sprite PNGs
beside it. `sylpheed-export check` validates that tree against docs/FORMAT.md
with no disc in hand — the P0 gate is "validates against FORMAT.md", which is
not something anyone can confirm by reading, so it is a program.

Two readings from FORMAT v1 turned out to be wrong and are corrected here rather
than carried:

* The focus sprite does NOT come from the element's `opt ` link. That was
  measured and refuted upstream, and this export shows why plainly: on the main
  menu `opt ` chains ptloop01 -> ptloop02 -> ptbtn01, two decorations and then a
  button. The highlight pairs by sprite NAME instead (ptbtn01.t32 <->
  ptbtn01f.t32), which is the convention HANDOFF blesses and which resolves all
  five main-menu buttons. The raw link is still exported, renamed `opt_link` so
  nothing downstream mistakes it for navigation.
* There are TWO modulate colours in different byte orders, and they multiply.
  v1's single `#rrggbbaa` could not carry both and silently dropped the alpha
  that every fade ramps. They are now `tint_rgba` and `fade_argb`, with the byte
  order in the key name, because getting it backwards is silent and reads as an
  art bug rather than a parse bug.

The exporter takes exactly one authored input: `authored/screen_names.json`,
because the disc does not name its builds and "build 5 is the main menu" is a
measurement (HANDOFF Q2), not a field. Every name it applies is stamped
`name_source: "authored"` with the evidence in `name_why`, and `check` rejects
an authored name that has no `why` — so the derived tree stays honest about
which of its fields is a decision.

Sprites are per screen, not a flat pool: `main_menu` and `extras` both ship a
`ptbase.t32` and they are different pictures.

Checked, not assumed:

* two exports of the same disc are byte-identical;
* five mutations of a valid main_menu.json — a broken paint_order permutation,
  a dangling focus_sprite, a reversed buttons list, a `#rrggbbaa` colour and an
  invented name_source — are each caught with a specific message.

`t` stays raw. Q1 is answered, but the seconds conversion is measured off the
running game and its own finding flags the frame-rate measurement as the part
worth re-testing; if the game presents at 60 Hz every duration halves. One
constant, at P2, in a file that says it is a decision.
2026-08-28 18:43:52 +00:00