Files
psxrecomp/runtime/include/autocompile.h
T
Matthew Stanley e7f7fb6cf0 overlay: unify cache read/write location + fix missing ws_cull symbol in DLLs
Two framework bugs that made overlay variants run interpreted forever (the
"agonizing lag" in overlay-heavy areas like Tomba's dwarf village):

1. Cache read/write divergence. The loader reads <exe>/cache and the runtime
   writes captures to <exe>/overlay_captures.json, but the gcc autocompile path
   used the game.toml command verbatim, whose hard-coded --out-dir/--captures
   pointed elsewhere (build-stable/build-modern). So compiled shards landed where
   the loader never looked and captures were read stale -> the variant never went
   native. Fix: the runtime now injects PSX_OVERLAY_CACHE_DIR / PSX_OVERLAY_CAPTURES
   (the canonical loader paths) into every autocompile spawn; compile_overlays.py
   honors them over any CLI flag (--captures now optional). One source of truth for
   the cache location, uniform across all games, dev or prod. gcc/tcc stay separated
   by the existing <compiler> namespace.

2. Overlay DLL preamble missing psx_ws_cull_sltiu. auto_screen_x emits this helper
   at every width-cull site into EVERY build's C (identity at 4:3), and the main EXE
   links it from gpu.c, but the overlay DLL preamble never defined it -> any overlay
   variant with cull sites failed to link -> no shard -> interpreter. Fix: provide
   the self-contained helper (depends only on the already-forwarded psx_ws_x_margin)
   in the DLL preamble.

Proven on Tomba dwarf village: dispatch_native 29/s -> 11454/s (was ~97% interp,
now ~97% native).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-25 18:57:57 -07:00

56 lines
2.5 KiB
C

/* autocompile.h — background overlay compile for variant-capture automation
* (step 2.8). Spawns the configured compile command (compile_overlays.py
* invocation from game.toml [runtime] overlay_autocompile_cmd) after an
* automatic capture, collects its output into an in-memory ring (no log
* files — CLAUDE.md §3; read it via the autocompile_status TCP command),
* and on success has the emu thread rescan the overlay-DLL cache so the new
* variant goes native in-session, without a restart. */
#ifndef PSXRECOMP_AUTOCOMPILE_H
#define PSXRECOMP_AUTOCOMPILE_H
#ifdef __cplusplus
extern "C" {
#endif
/* Store the command line + working directory. Empty cmd disables. */
void autocompile_configure(const char *cmd, const char *cwd);
int autocompile_configured(void);
/* Pin the canonical overlay cache dir + captures file the LOADER actually uses
* (<exe>/cache and <exe>/overlay_captures.json — computed once in main.cpp).
* autocompile injects these into every spawned compile via the environment
* (PSX_OVERLAY_CACHE_DIR / PSX_OVERLAY_CAPTURES), so the WRITE cache and the
* READ captures can never diverge from where the loader reads — for every game,
* dev or prod, gcc or tcc. compile_overlays.py / coverage_vault.py honor these
* over any CLI --out-dir/--captures. This is the single source of truth for the
* cache location: no per-game config, no drift. */
void autocompile_set_cache_paths(const char *cache_dir, const char *captures);
/* Probe whether a C compiler is actually reachable on PATH (gcc/cc/clang) — the
* REAL "developer machine" signal, distinct from autocompile_configured() which
* only reports that a command STRING is set (the shipped game.toml always sets
* one). overlay_backend_resolve uses this so `auto` picks gcc only when the
* toolchain can really build a shard, else sljit (toolchain-less production).
* Memoized; safe to call repeatedly. */
int autocompile_toolchain_available(void);
/* 1 while a compile process is running. */
int autocompile_busy(void);
/* Kick a compile if configured and idle. Returns 1 if started. */
int autocompile_request(void);
/* Emu-thread tick: applies a finished compile (cache rescan on success).
* Must be called from the same thread that owns the overlay loader. */
void autocompile_poll_main(void);
/* JSON status blob for the debug server: state, run/fail counters, last
* exit code, and the output tail. Returns bytes written. */
int autocompile_status_json(char *out, int cap);
#ifdef __cplusplus
}
#endif
#endif /* PSXRECOMP_AUTOCOMPILE_H */