mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 02:11:36 -04:00
Matthew Stanley
e6ce5006b4
The repository root carried seven markdown files that were not onboarding
material, plus two that had been superseded by the code they described. This
sorts them: reader-facing docs to docs/, working notes to docs/internal/, and
the two superseded ones merged into the docs that replaced them.
Moved to docs/: WIDESCREEN.md, ENHANCEMENTS.md, TCP_COMMANDS.md
Moved to docs/internal/: PRINCIPLES.md, ISSUES.md, DEBUG.md, GTE_LM_FIX.md,
and from docs/: bios-hardening.md, overlay-status.md,
overlay-plan.md, overlay-recompilation-design.md,
overlay-discovery.md, TOMBA2_EXC_CONSULT_RESPONSE.md,
CASE_A_AOT_GAP.md, audit_inventory.md
Moved to docs/internal/upstream/: UPSTREAM_2026-08-20.md
The root keeps only what belongs there: README.md, CONTRIBUTING.md, LICENSE,
CLAUDE.md, THIRD_PARTY_ATTRIBUTION.md, RELEASE_NOTES.md, the dotfiles and
psxrecomp_cli.py.
MERGES
SPLITGEN_MIGRATION.md folded into docs/BUILDING.md as "Split generated C". Its
migration instructions were stale in a way that mattered: it told every game
repo to hand-edit its CMakeLists and add a file(GLOB ...) over
<serial>_full*.c, but runtime/runtime.cmake now does that itself. GEN_FULL_GLOB
is a multi-value argument of psxrecomp_add_game_runtime(); the loop at
runtime.cmake:1985 makes each pattern absolute against CMAKE_CURRENT_SOURCE_DIR,
expands it with file(GLOB), and concatenates the hits into
GAME_GENERATED_FULL_C. So a title names the pattern and gets however many shards
a regeneration produced. The rewritten section describes that, the two-step
fallback when the globs match nothing (GEN_FULL_FALLBACK, else <serial>_full.c
derived from the dispatch marker by substituting _dispatch.c), and the one
caveat the code actually has: that file(GLOB) is plain, not CONFIGURE_DEPENDS,
so a regeneration which changes the shard COUNT needs a re-configure to be seen.
psxrecomp-toml-readme.md folded into docs/GAME_PROJECT_SETUP.md as "EXE-only
autofill (psxrecomp-toml)", placed after "Disc autofill (probe_disc.py)" and
before "Project Studio" so the two autofill paths sit together. Its documented
flags were checked against the usage text in recompiler/src/main_toml.cpp:28-42
and against the argument parser at :150-165 -- all seven options match with no
drift, so the flag list is reproduced as-is. Added a pointer that probe_disc.py
is preferable when a cue exists, since that tool does the same EXE-header work
plus disc identity and netplay gates.
FUNCTIONAL FIXES
tools/gen_tcp_commands.py wrote to REPO/"TCP_COMMANDS.md". After the move that
path does not exist, so the generator would have created a new stray root file
and --check would have failed against it forever. Retargeted to
REPO/"docs"/"TCP_COMMANDS.md", along with the seven docstring and message
strings that name the path.
Running it surfaced two further problems, both fixed here:
* The doc was genuinely stale -- pre-existing drift, not introduced by this
commit (the moved file is byte-identical to origin/master, and no
debug-server command table is touched here). Four commands registered since
the last regeneration were missing from the index -- cdrom_timing_dump,
savestate_status, ws_ui_groups, xprobe_watch -- and scanline had gained a
backend. Regenerated: 307 -> 311 commands, and the change is confined to the
AUTOGEN block (the hand-written head and tail are byte-identical to master).
tools/gen_tcp_commands.py --check now exits 0.
* DOC.write_text() has no newline argument, so Python translated every newline
to os.linesep. On Windows that rewrote all 585 lines of the file to CRLF and
turned a four-line index update into a whole-file diff -- measured: 589 CRLF
/ 0 LF after a run, against 0 CRLF / 585 LF in the repo. Now written through
an explicit newline="" handle, verified to leave the file at 0 CRLF.
runtime/include/debug_server.h:9 and runtime/src/debug_server.c:8 cited "TCP.md
and DEBUG.md". TCP.md has never existed in this repo under that name; both now
name docs/TCP_COMMANDS.md and docs/internal/DEBUG.md.
LINK AND REFERENCE FIXES
Every inbound reference to a moved file was located by grepping each basename
across the whole tracked tree, not just the markdown. Markdown hrefs in
README.md, CONTRIBUTING.md, docs/ARCHITECTURE.md, docs/COMPILING_OVERLAYS.md,
docs/AOT_OVERLAY_PLAN.md, docs/RELOCATION_MANIFEST_FORMAT.md,
docs/config_schema.md, docs/OVERLAY_XREF.md, docs/TCP_COMMANDS.md and several
docs/internal/ files now point at the new locations; where two files became
siblings under docs/internal/ the path was shortened rather than lengthened
(bios-hardening.md's reference to overlay-discovery.md, for instance).
docs/COMPILING_OVERLAYS.md's "in this folder" phrasing was wrong once two of the
three files it listed moved, so it now names internal/ explicitly.
24 source-comment mentions of ENHANCEMENTS.md sections G1.x across 19 files
(recompiler, runtime, cmake) were retargeted to docs/ENHANCEMENTS.md with the
section numbers untouched. docs/SHADOW_ENHANCEMENTS.md is a DIFFERENT file and
was deliberately excluded.
20 rationale strings citing docs/CASE_A_AOT_GAP.md across the four
recompiler/seeds/*.json files were updated. Done as a byte-level substring
replacement rather than a JSON round-trip: two of those files are stored with
CRLF endings and two with LF, and re-serializing them reformatted 5,700 lines.
The byte-level version changes exactly 20 lines and each file still parses.
References that look similar but point elsewhere were deliberately left alone,
and are worth naming so a future pass does not "fix" them:
* "recomp-template PRINCIPLES.md" / "NES recomp template PRINCIPLES.md" in
CLAUDE.md:43, docs/SHADOW_ENHANCEMENTS.md:28,
docs/internal/HLE_SCHEDULER_CARVEOUT_PLAN.md:5,
runtime/src/debug_server.c:4934 and tools/parity_diff.py:8 are a different
repository's file. Only the five that mean this repo's PRINCIPLES.md were
updated.
* Every remaining bare ISSUES.md mention is a GAME repo's tracker
(MegaManX6Recomp 2/7/8/9, TombaRecomp 6), not this repo's.
* docs/disc-speed.md:4,54,56 and docs/internal/bios-hardening.md:5 name
overlay-discovery as a BRANCH, not a file, so no path applies.
INDEXES
README.md's "New here?" table gains rows for docs/WIDESCREEN.md,
docs/ENHANCEMENTS.md and docs/TCP_COMMANDS.md. docs/internal/README.md gains
sections indexing all fourteen documents that moved in, plus an "Upstream
contributor reviews" section describing upstream/ and the new sweep file, plus a
"Removed" bullet for CYCLE_TIMING_ARCH.md (deleted in the previous commit)
pointing at FAITHFUL_TIMING_PLAN.md, CYCLE_MODEL_BEETLE.md and
PRECISE_IRQ_SLICE.md -- following the SLJIT_PERSIST_CACHE.md precedent already
in that file.
docs/ENHANCEMENTS.md:7 claimed framework bugs live in "game repos' ISSUES.md
until a framework tracker exists". A framework tracker does exist; it now says
so and names the Beads epic.
VERIFICATION
A link checker was written to scan every tracked *.md for relative links,
resolving each against the tree being scanned. Baseline at origin/master: 129
files, 137 relative links, 3 broken. After both commits: 127 files, 159 relative
links, 3 broken -- the SAME three, all pre-existing and untouched here:
docs/DATA_SHARDS.md -> INSTANT_LOADS_PARKED.md (never existed)
docs/DATA_SHARDS.md -> INSTANT_LOADS_SPIKE2.md (never existed)
docs/NETPLAY.md -> ../lib/recomp-net/README.md (inside a submodule)
Zero new broken links. The checker's own coverage was checked against a raw grep
for markdown link openers: the 3-link difference is C++ lambdas inside code
blocks, correctly not treated as links.
Also verified: py_compile over all 113 tracked tools/*.py plus psxrecomp_cli.py;
all four seed JSONs still parse; the test-registration guard still reports 123
test files all registered; recompiler/tests/test_coverage_vault.py still passes;
and no file in this commit had its line endings flipped (checked mechanically
across all 50 modified files, after two files were caught and redone).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
78 lines
3.3 KiB
C
78 lines
3.3 KiB
C
/* spu_shadow.h — verified-enhancement float re-render of the SPU voice mix.
|
|
*
|
|
* A higher-fidelity reimplementation of the PS1 SPU's per-voice ADPCM playback
|
|
* that runs ALONGSIDE the faithful spu.c hardware model. Where the hardware
|
|
* resamples each voice with a 4-point Gaussian table (deliberately muffled) and
|
|
* truncates the mix to int16 at every step, the shadow keeps everything in
|
|
* float and resamples with a 4-point cubic (Catmull-Rom) kernel — no muffling,
|
|
* no intermediate requantization.
|
|
*
|
|
* It is NOT ground truth. The canon spu.c mix stays the authoritative output
|
|
* AND the verify oracle. The shadow is fed, sample-for-sample, into a
|
|
* ShadowVerifier against the canon stream; it only substitutes after a proven
|
|
* window and reverts LOUDLY (logs DEGRADED) the instant correlation/level
|
|
* breaks. Opt-in via PSX_AUDIO_SHADOW=1, default OFF — with it off, spu_render
|
|
* output is byte-identical to upstream (this module is never entered).
|
|
*
|
|
* This file consumes the live per-voice state that spu.c already maintains via
|
|
* a small read-only accessor (spu_shadow_voice_snapshot); it does not duplicate
|
|
* the SPU register decode. ADSR envelope, key-on/off, and SPU RAM contents all
|
|
* come from the canon model, so the shadow can never diverge in WHICH note
|
|
* plays — only in the interpolation/headroom of HOW it is rendered.
|
|
*
|
|
* See docs/internal/PRINCIPLES.md "Verified-Enhancement HLE Is Allowed; Load-Bearing HLE Is
|
|
* Not" and docs/SHADOW_ENHANCEMENTS.md. ShadowVerifier attribution: see
|
|
* audio_shadow.h.
|
|
*/
|
|
|
|
#ifndef PSXRECOMP_SPU_SHADOW_H
|
|
#define PSXRECOMP_SPU_SHADOW_H
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Config/launcher gate. Sets the enable state the feature uses when the
|
|
* PSX_AUDIO_SHADOW env var is NOT set (env still wins for debug). Call before
|
|
* spu_init() so spu_shadow_reset() records the right state. Default OFF. */
|
|
void spu_shadow_set_enabled(int on);
|
|
|
|
/* Returns true if the shadow is enabled. Precedence: PSX_AUDIO_SHADOW env
|
|
* (if set) overrides the config value set via spu_shadow_set_enabled(). */
|
|
bool spu_shadow_enabled(void);
|
|
|
|
/* Called once per spu_init() to (re)create verifier + per-voice resampler
|
|
* state. Cheap; safe to call when disabled (no-op). */
|
|
void spu_shadow_reset(void);
|
|
|
|
/* Drive the shadow for one render block. `canon` is the int16 stereo mix that
|
|
* spu.c just produced (frames*2 samples, the authoritative output). The shadow
|
|
* re-renders the same block in float from live voice state, feeds (canon,
|
|
* shadow) to the verifier per frame, and — only while proven — overwrites
|
|
* `canon` in place with the float mix (clamped to int16). If the verifier
|
|
* reverts, it logs a DEGRADED line and leaves `canon` untouched.
|
|
*
|
|
* No-op (canon untouched, byte-identical) when the feature is disabled. */
|
|
void spu_shadow_process(int16_t* canon, int frames);
|
|
|
|
/* Diagnostics for the debug server / tests. */
|
|
typedef struct {
|
|
int enabled;
|
|
int proven;
|
|
uint64_t pauses;
|
|
float last_r; /* last window correlation */
|
|
float last_ratio; /* last window level ratio */
|
|
float gain; /* calibrated shadow gain */
|
|
char last_revert[160];
|
|
} SpuShadowInfo;
|
|
void spu_shadow_get_info(SpuShadowInfo* out);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* PSXRECOMP_SPU_SHADOW_H */
|