Knutwurst fcd43b54ae Home-screen tile via sceAppInstUtilAppInstallTitleDir ...

Write param.json + icon0.png into /user/app/<TITLE_ID>/sce_sys/, then
call sceAppInstUtilAppInstallTitleDir to register the directory as an
app. No package, no code signing — the installer reads the metadata
files directly.

The tile uses TITLE_ID PTDL00001 and deeplinkUri
http://127.0.0.1:12880/, so tapping it opens PatchDL's own UI in the
on-console browser. Only useful while the ELF is running.

Asset pipeline: param.json + icon0.png live under assets/ and get
.incbin'd straight into .rodata. Makefile lists them as TILE_ASSETS so
a touch on either forces a relink.

Stat-guard: file_matches() diffs each asset against the on-disk copy
first; when nothing changed the install API isn't called at all. Keeps
repeated payload starts from re-registering the app. Repeated
/api/install_tile calls return "already installed and up to date".

Backend lazy-load: AppInstUtil isn't mapped until something pokes it,
so the helper polls patchdl_install_backend_check() for up to ~15 s
before resolving sceAppInstUtilAppInstallTitleDir.

Wiring: /api/install_tile POST triggers the install on demand;
patchdl_websrv_start() runs it at startup when home_shortcut is on;
and flipping the toggle from off to on in /api/config also fires it.
All three paths share the stat-guarded helper so they're safe to
repeat.

2026-06-24 21:50:59 +02:00

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