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AnyPS5/docs/dev/debt/libSceNpTrophy2.md
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milescovielloandClaude Opus 5.5 ca34fdb351 feat(libSceNpTrophy2,libSceNpUniversalDataSystem): unlock progressive trophies through _UpdateTrophyProgress
Titles report a progressive trophy's progress with _UpdateTrophyProgress
events. Their udsNN.ucp rules feed $._trophy_progress into an int32
statistic with the max aggregation, filtered on $._trophy_id, and the
trophy's unlockCondition names that statistic. Those statistics and
rules were skipped and the events were dropped, so such trophies never
reported progress or unlocked (21 of Borderlands 4's 64).

- Read max statistics (largest value posted, from initialValue) and
  int32 statistics (0 to 2147483647).
- Read a rule condition with one == property equal to an unsigned
  integer, and apply the rule only to events whose property matches.
- Post _UpdateTrophyProgress through the statistic rules.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-25 17:24:43 +01:00

22 lines
6.5 KiB
Markdown

# libSceNpTrophy2 technical debt
### Silent stubs
- [sceNpTrophy2GetRewardIcon](../../../core/libs/prx/libSceNpTrophy2/src/Context.cpp) (libSceNpTrophy2) - zeroes size and returns `SCE_NP_TROPHY2_ERROR_ICON_FILE_NOT_FOUND` (-2141898479): the `(int context, int handle, int reward_id, void* buffer, size_t* size)` signature and two-stage query pattern follow the bundled `Media/Plugins/PSNCore.prx` of PPSA06888 and SharpProspero; returning -2141898479 (0x80553911) when icons are unavailable is inferred from sibling calls (sceNpTrophy2GetGameIcon, sceNpTrophy2GetGroupIcon, sceNpTrophy2GetTrophyIcon) in KytyPS5 (libTrophy.cpp:464/483/502)
- [libSceNpTrophy2](../../../core/libs/prx/libSceNpTrophy2/src/GameInfo.cpp): `sceNpTrophy2RegisterUnlockCallback` accepts a callback that is never called, as the callback's signature and when the console calls it are not known, `sceNpTrophy2UnregisterUnlockCallback` only returns success, and `sceNpTrophy2ShowTrophyList` returns success without showing a list (there is no system trophy UI; seen on PPSA15552).
### Unknown function info
- [Query structures](../../../core/libs/prx/libSceNpTrophy2/include/NpTrophy2Types.hpp): a progress value is a 16-byte `{int32 type, 4 reserved bytes, uint64 value}` and the game, group and trophy structures are 152, 24, 152, 32, 1312 and 32 bytes, as [KytyPS5](https://github.com/KytyPS5/KytyPS5/blob/9e41d8320a2774b303fbad344c2347e8d0292e83/src/libs/libTrophy.cpp) asserts; no other public source confirms the layout. Progress type 1 marks a progressive trophy's target and progress, as in KytyPS5. Trophies without a `groupId` belong to group -1, KytyPS5's base game group.
- [libSceNpTrophy2 pending exports](../../../core/libs/prx/libSceNpTrophy2/Export.cpp) - 23 named callable exports were identified in the PS5 3.20 export table and cross-checked against firmware 13.60. Signatures and behavior remain unverified; declarations use the unknown-signature convention and throw through `NotImplemented_nid_no_patch`. Evidence: [3.20 export list](https://github.com/DNNDHH/PS5-3.20_Libs/blob/b2a77c09cd71c01f34c790cfbe98c751a13262ad/libSceNpTrophy2.c).
### Functional
- [Trophy queries](../../../core/libs/prx/libSceNpTrophy2/src/TrophyInfo.cpp) - not confirmed on the console: `sceNpTrophy2GetTrophyInfo` of a trophy id that is not in the title's [trophy data](../../../core/libs/prx/libSceNpTrophy2/src/TrophyPackage.cpp) (`sce_sys/trophy2/trophyNN.ucp`) returns `0x8055390A` (KytyPS5's `NP_TROPHY2_ERROR_INVALID_TROPHY_ID`) and writes nothing; a context not created or destroyed reports placeholders and no unlocks and returns success; hidden trophies report their names and descriptions before the unlock; `progress_percentage` weighs gold 6, silver 2 and bronze 1 and leaves the platinum out, as KytyPS5 does (the ratio of the published PSN trophy points). A group that is not in the data throws. Without the file, or when it is malformed, the queries report the old placeholders and `sceNpTrophy2GetTrophyInfoArray` lists only trophy 0. Icons are not read. Unlocks come from the [trophy store](../../../core/libs/prx/libSceNpTrophy2/src/TrophyStore.cpp).
- [Trophy data limits](../../../core/libs/prx/libSceNpTrophy2/src/TrophyPackage.cpp): a `trophyNN.ucp` or `udsNN.ucp` larger than 256 MiB or listing more than 4096 files, and a JSON file in it that nests deeper than 64 levels or holds more than 1048576 values, are not used, and the title runs as without that file. The limits keep the memory the reader takes to the file and about 140 MiB of parsed JSON; the console's limits are not known.
- [Text language](../../../core/libs/prx/libSceNpTrophy2/src/TrophyPackage.cpp): texts come from `tropmeta_<tag>.json` for the console language, then `en-US`, then the file's `defaultLanguage`. The tags for languages 0 to 29 are KytyPS5's; `uk-UA` for 30 (Ukrainian) is an assumption.
- [Trophy progress statistics](../../../core/libs/prx/libSceNpTrophy2/src/TrophyPackage.cpp): `max` (the largest value posted, starting from `initialValue`, or `minValue` without one), `int32` (0 to 2147483647) and a rule condition of an `eventName` and one `property` whose `comparator` is `==` and `value` an unsigned integer follow the rules a title ships for its progressive trophies, not a console measurement. Borderlands 4 (PPSA01494) feeds each one's `udsStatId` from `$._trophy_progress` of `_UpdateTrophyProgress`, through an `int32` `max` statistic and a rule on `$._trophy_id`. `latest` and the unsigned types follow KytyPS5.
- [Platinum](../../../core/libs/prx/libSceNpTrophy2/src/TitleTrophies.cpp): an unlock through any path unlocks the platinum that the trophy names in `platinumTrophyId` once every trophy naming that platinum is unlocked, as KytyPS5 does; trophies without `platinumTrophyId` are not required. With the title's trophy data loaded, a posted `_UnlockTrophy` of a trophy that is not in the data, of a platinum or of a progressive trophy is not stored and prints a `[trophy] ignored` line, as KytyPS5 refuses them, so a progressive trophy unlocks only through its statistic; without trophy data any id of 0 or more is stored, including ids the data would make the platinum, a progressive trophy or no trophy, and the platinum is not unlocked when the trophies it needs are. The console's behaviour is not known.
- [Damaged records](../../../core/libs/prx/libSceNpTrophy2/src/TrophyStore.cpp): a line in `_trophy/<user id>_<service label>.txt` or `.stats.txt` that is not a new `<id> <value>` pair (a blank line, a carriage return, a repeated or negative id, a value that is not a number) makes `readRecord` throw a `std::runtime_error` that names the file and the line. Every call that reads that record then throws it instead of returning, which stops the title as any throwing export does, so the title gets no return value; main returned 0 from these calls. The failed read is not kept, so each later call reads the file again and throws again until the file is fixed or deleted. The unlock record is read by `sceNpTrophy2GetTrophyInfo`, `sceNpTrophy2GetTrophyInfoArray` and `sceNpTrophy2GetGameInfo` for a created context, by `sceNpTrophy2GetGroupInfo` and `sceNpTrophy2GetGroupInfoArray` when the title's trophy data is loaded, by a `sceNpUniversalDataSystemPostEvent` of an `_UnlockTrophy` that the trophy data does not refuse, and by a statistic change when the trophy data is loaded; the stat record by a `sceNpUniversalDataSystemPostEvent` of an event that a statistics rule copies and by the trophy queries of a progressive trophy with a statistic. What the console does with a damaged record is not known.