e61937f7a1
Direct follow-through on this session's own named next step. The prior result (f1-held-down-measured-no-repeat-via-file-driver.md) concluded the file driver cannot show menu repeat because its GetKeystroke() never emits a REPEAT-flagged event, and that the menu's repeat is very likely driven by that flag rather than raw polled state. Testable, so tested: patched /canary/src/xenia/hid/file/file_input_driver.h to add opt-in repeat behind a new --pad_file_repeat cvar (off by default, every other scripted script unaffected), using the SDL driver's own constants verbatim (HID_SDL_REPEAT_DELAY/_RATE = 400/100, guest-time ms via Clock::QueryGuestUptimeMillis) rather than re-deriving them. Incremental rebuild, ~1 minute (only xenia_main.cc needed recompiling). Control: the driver's own log confirms repeated keystroke events fire as designed, zero crashes. Result: re-ran the identical held-DOWN capture. The cursor that moved once and stopped in the null result now cycles continuously through the whole 5-item menu, wrapping, for as long as the button is held -- the null result was real for that driver path, and giving the driver the one thing it lacked reverses it completely. Measured at this run's achieved 29.87 fps guest rate: 12 frames (~402ms) initial delay from the press-triggered step to the first repeat step; 4 frames (~133ms) steady-state interval for 13 of 15 gaps, 3 frames (~100ms) for the other 2 -- slower than the raw 100ms constant driving it, which this page flags but does not trace further (most likely the game batches drained keystrokes per its own frame tick rather than reacting to each one instantly). The 4-frame figure is what matters for the port: it's what the cursor visibly does. Honestly scoped: this measures what the game does when FED repeat events shaped like the SDL driver's, not a capture through an actual physical controller (none exists in this container) -- classified measured, not decoded, for exactly that reason. One run only; the corpus's two-run minimum isn't met, flagged rather than overclaimed. f1_hold_capture.py gains an optional `repeat` argument. The Canary source patch itself lives in /canary, outside this repo (Canary source, not sylpheed-formats) -- fully described inline in the finding doc so it can be reapplied if that tree doesn't persist across a container reset. Reference data: docs/re/data/f1-repeat-cursor-transitions.tsv -- every transition's frame, guest tick and Y position, not the raw draw log.
Sylpheed
A clean-room reverse engineering and port project for Project Sylpheed: Arc of Deception (Xbox 360, 2007).
Three things live here, in one repository so that a change spanning them lands as one commit:
| The decoders | crates/sylpheed-formats — the disc's formats, read and verified disc-wide |
| The port | port/ — a Godot 4 project, plus crates/sylpheed-export which converts a disc into the open asset tree it reads |
| The corpus | docs/re/ — what has been reverse engineered, with its evidence, its retractions and its dead ends |
You need your own copy of the game. No game content is in this repository and none ever will be. The exporter reads the disc you supply.
The oracle is the real game
sylpheed-cliand the Explorer are tools for verifying our decoding. They are hypotheses under test and they have been wrong. When something must be checked against the truth, the truth is the game running in Xenia Canary, captured — not any renderer of ours.
This is stated first because getting it backwards is the most expensive mistake this project has made.
Layout
crates/
sylpheed-formats/ the decoders. Disc-wide verified; the corpus is its spec
sylpheed-cli/ headless tools -- render a screen, dump a table, probe audio
sylpheed-viewer/ the Explorer: a human's window onto the disc. STATIC data only
sylpheed-export/ disc -> the open, moddable asset tree
port/ the Godot 4 project. Reads open formats ONLY
authored/ decisions that are NOT on the disc, each with its reason
data/
base/ generated by the exporter. Gitignored, never hand-edited
mods/ drop-in overrides. Yours
docs/
re/ the corpus: findings, refutations, method traps
game/ how the game is navigated -- menus, modals, flight
port/ the port's mission, its handoff contract, modding rules
-- and RUNNING.md, which is how you actually start it
agents/ how the agent team works together
tools/ capture harnesses, probes, the share tool
exchange/ transient inter-agent files. NOT in git
docker/ the agent containers
Where to start
docs/re/INDEX.md— what is decodeddocs/re/REFUTED.md— what has been tested and dieddocs/re/METHOD.md— traps this project has already paid fordocs/game/navigation.md— how the game is navigateddocs/port/MODDING.md— why the asset tree looks the way it does
Xenia Canary is a separate repository: it is a fork tracking upstream, and it carries our instrumentation.
Conventions
Confidence is per claim, never per document: ✅ CONFIRMED · 🟡 PROBABLE ·
❔ HYPOTHESIS · ❌ REFUTED. A withdrawn result is kept with its reasoning
rather than deleted — that is why the numbers here can be trusted.