chimera-gfx-Public/docs/retroarch/phase-1.0a-driver-status.md

Phase 1.0A driver status

Component	Headless	Software/RGUI	Runtime classification
RetroArch frontend/runloop	Real linked code	Real linked code	Built offline
Platform frontend	frontend_ctx_ps5	frontend_ctx_ps5	Startup/return on device unproven
Video	video_null	RetroArch sdl2 + SDL software + PS5 VideoOut	Linked, firmware runtime unproven
Menu	none	RGUI	Linked, display unproven
Input	input_null	RetroArch SDL + SDL PS5 Pad	Linked, one-controller runtime unproven
Joypad	null	SDL joypad over PS5 Pad	Buttons/axes source present; runtime unproven
Audio	audio_null	RetroArch SDL + PS5 AudioOut	48 kHz stereo source present; runtime unproven
Core	static chimera_smokecore	static chimera_smokecore	Host-verified
Dynamic core	disabled	disabled	Not implemented
Config/VFS persistence	disabled default path	disabled default path	Generic write-capable code remains
Networking/updater	disabled	disabled	No network API imports expected
GNM/hardware context	absent	absent	Out of scope

Platform services

• lifecycle, contentless arguments and blocked config reads: frontend_ctx_ps5;
• monotonic time and bounded sleeps: RetroArch/libretro-common POSIX paths backed by the pinned SDK libc; no invented PS5 ABI;
• RetroArch worker threads: compiled out; the software profile may use SDL's public pthread-backed audio primitives;
• logging: existing RetroArch stderr/stdout path only, with file logging off;
• VFS: generic code is linkable but the fixed PS5 wrapper supplies no content, config, SRAM, state, core or data path;
• dynamic core loading and executable-memory policy: explicitly unsupported.

Smoke core contract

• no content;
• 320x240 XRGB8888 at 60 Hz;
• 48 kHz deterministic stereo, 800 sample frames per video frame;
• D-pad and left analog stick offset the pattern;
• A toggles the background;
• Start requests clean libretro shutdown;
• no input means unbounded deterministic operation;
• no filesystem, networking, threads, JIT or frame-hot-path allocation.

Host result for 600 no-input frames:

• video FNV-1a-64: 43f920496eb5f435;
• audio FNV-1a-64: a48f47dc08c56625;
• ASan/UBSan: pass;
• digital- and analog-input-dependent video change: pass;
• Start shutdown callback: pass.

Explicitly unsupported

Persistent configuration, history, playlists, screenshots, saves, states, content loading, dynamic cores, multiple controllers, haptics, touchpad, gyro, lightbar, overlays, shaders and hardware-rendered cores are not silently reported as working.