Patrick's Parabox

Update 1.0.1 (v65536) over the base game, SDK 13.3.7. Unity 2020.3.30f1 IL2CPP with FMOD on NVN. Modules main, subsdk0 (the movie module, which the game never uses) and sdk. Plays on the iPhone. On the Mac: the first-boot language menu (all ten languages drawn), the title, the hub, Intro 1 solved and Intro 2 with undo, reset and the menu, at 60 fps with music and saves (progress kept across a restart); no red line, about 0.42–0.48 GB resident, flat over four minutes.

What it needs

Memory

• The NPDM declares 16 MB of system resource, so IsVirtualAddressMemoryEnabled is true: nninitStartup (main+0x1cd010) hands application pool − used memory to StandardAllocator as virtual address memory and never calls SetMemoryHeapSize, as in Ace Attorney Investigations Collection and Brain Memory Training Academy.
• Resolved: StandardAllocator::Initialize aborted at sdk+0x324dec, called from nninitStartup at main+0x1cd080: the same nninitStartup and the same cut as theirs, on this build's constructor. With the 1 GB pool and the 5 GB block it boots to its title with no red line, and the alias region is mapped up to +1.5 GB with 0.27 GB in use.
• To find the constructor on a new sdk build, search its text for the two mov w8 / w9, #0x3fe00000 words (08fca752, 09fca752); sdis.py --fn names the function AddressRegionManagerC2Emm from its dynamic symbols.

Fonts

• Resolved: Japanese, Korean and Chinese text drew nothing (the language menu showed three blank lines), Latin text was fine. The game's one font, Jost (a Unity dynamic font), falls back to the OS fonts for those glyphs, and Unity's Switch player loads them from the shared fonts: main+0x2390b0 maps the names Switch_Font_STD, Switch_Font_CN_Simplified, Switch_Font_CN_Extended, Switch_Font_CN_Traditional, Switch_Font_KR and Switch_Font_NIN_Extended to types 0–5 and hands GetSharedFontAddress / GetSharedFontSize straight to FreeType's FT_New_Memory_Face (main+0x23b2e0). The host gave every SDK 11+ game the 8-byte BFTTF header in front, so every face failed to open. The host now gives a game that imports no ScalableFontEngineHelper::Decode the TTF itself (font_skip in hle_sdk16.c, dm_main_imports in loader.c; the shared_font key, which no profile sets, overrides it).
• To see which fonts a Unity game asks for, probe its name mapper's entry: DM_PROBE=main:2390b0 on 1.0.1 (the function is the one main caller of GetSharedFontLoadState).

Input

• Controller only (stick or D-pad to move, A redo, B undo, X reset, + menu): it stays docked at 1920x1080 with the 2D pad layout.

Files and shaders

• 486 shaders, all Unity built-ins (Data/Resources/unity default resources, unity_builtin_extra) plus the player's 11 GLSLC outputs in main. The whole game draws with three shader pairs. The built-in VR blit's geometry shader does not build.
• Resolved: the split stopped with "no bundle has a Shader type tree of the same hash to borrow" (hash a30e3dcf…). There are no bundles, and the files carry no type trees. One 18 KB shader bundle of Fire Emblem Engage (2020.3.18f1) carries that hash; its tree is now in unityfs.py's table (SHADER_2020_3 in KNOWN_TREES: per subprogram global and local keyword indices, every subprogram in m_SubPrograms, no parameter blobs, keyword names or stage counts), equal to Engage's node for node (2,179 nodes, the alignment flags included). Each of the game's 48 Shader objects reads to its exact end. The structs it shares with the 2022.3 layout are written once (_SHADER_COMMON), and the 2022.3 layout comes out byte-identical.

Mac routes

• A fresh save solves Intro 1: DM_KEYS="f700:A,f1000:A,f1300:A,f1600:A,f2400:Right,f2450:Down,f2500:Down,f2550:Down,f2600:Down,f3000:Up*3/30,f3090:Right*3/30,f3180:Down*2/30,f3240:Up*3/30,f3330:Left*4/30" (English, the title, into Intro 1 from the hub at about frame 2,700, solved and on to Intro 2 at about frame 3,500).

Found on this game

General host changes first needed here; each applies to every game:

• The shared-font address is the TTF unless the game is on SDK 11 or later and imports ScalableFontEngineHelper::Decode (font_skip, dm_main_imports): Shared font address: BFTTF header or bare TTF, dm/games/README.md, Keys (shared_font).
• Unity 2020.3's Shader layout written out (SHADER_2020_3, _SHADER_COMMON): Unity Shader layouts written out for players without bundles.
• Finding the AddressRegionManager constructor on a new sdk build: The SDK's address-region node area.

Open

• The built-in VR blit's geometry shader does not build.
• The A button: docs/development.md says "A redo", the game.tsv header "A to confirm".