Renderers that test a 16-bit screen X with an unsigned compare against a width kept in a register (often a loaded clip bound) reject every negative X, so widening the bound only reveals the right band. A screen_x site on sltu now routes through psx_ws_cull_sltu_band: -4m <= (int16)SX < W while widened, identity at 4:3. Four margins keep large near polygons whose corners all lie past one margin; an unbounded left side overflowed a renderer's fixed primitive lists. Covered by ws_cull_screen_x_hi_codegen_test; documented in WIDESCREEN.md.
- [quality.*] accepts only the supported keys (quality_key_supported):
twelve player-editable ones (masked, copied, classified, applied) and
nine preset-only ones (no settings.toml form; applied on select). Any
other key, e.g. vsync or renderer, is a load error.
- Picking a preset now also applies bloom, texture LOD, anisotropy, FMV
chroma smoothing and dithering (quality_apply_video_globals).
- The frontends flag Custom on any tracked row; the host counts only rows
of keys the title governs (psxq::launcher_custom_edit), so Antialiasing
no longer turns Ultra into Custom when no preset sets it.
Tests cover the rejection, every player key's masking/copy, and the
classification cases.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Restart bits: a group waits only when the edit touches it (next differs
from the live value) and the result differs from boot. Dynamic
resolution moves the live internal resolution off boot, so an in-game
texture filter change relaunched the game. test_menu_video_snapshot
covers both cases.
- Return to the frontend from a local game opens the launcher as at
boot; only a lobby match start (the runtime's pending-launch exit, or
the provider's lobby view asking once its match started) keeps the
launch and resumes the room.
- Default provider: with no title choice, the UI library's provider is
used when it ships one (recomp_ui_psx_menu.h), so recomp-ui stays the
default; PsxMenuHost.default_selection tells it to keep the title's
default presentation.
- Debug: menu_host reports provider, open, pause, capture and snapshot.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Nothing is measured about an unknown GPU, so the fallback no longer assumes
Ultra's extra work (supersampling above the display, title Ultra extras);
Low would drop Smooth motion and the PGXP extras on what is usually capable
new hardware. Medium keeps the display's resolution with dynamic
resolution under it. Covers unnamed renderers, Linux with only an AMD PCI
id, and unnamed nouveau chips. docs/QUALITY_PRESETS.md states plainly that
autodetect is a static heuristic over name, threads and memory with no
benchmark, and that the dynamic systems keep the frame rate.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
With [timing] guest_cycle_scale active, every one-cycle psx_cyc_charge went
straight to psx_cpu_charge and psx_advance_cycles, bypassing the batch the
scale-1 path uses. [timing] guest_cycle_scale_batch (PSX_GCS_BATCH=0/1)
scales the charge in place, with the same fractional carry and order as
psx_cpu_charge, then batches it like the scale-1 path. It flushes at the same
observation points. Default off.
R4 exactness, frame_fingerprint off vs on, 9000 frames each: headless boot
through intro, title and attract; a 1P Grand Prix race; and a 2P VS race.
cyc, mmio, mc and qc are identical on every frame. sp, wr, pc and ws are
identical at the end. The only differences are single-frame VBlank straddles
of wc/sc (never two frames in a row). 0 dispatch misses.
Speed, release builds, races at 60 Hz:
- M4 (macOS sample): psx_cpu_charge 4.3 % -> 0 % of emulation-thread samples;
busy 46.0 -> 44.4 % (2 pairs).
- 9800X3D: no measurable change (30.0 vs 30.5 %; one core 44.6 vs 44.2 %).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
1. Detection never runs under --headless / --hidden-window (CI, scripted
runs): a saved preset applies, else the title's [video]; nothing is
written. A detection is saved only when the GL probe succeeded; a result
from the OS name alone is used for that run and the next launch probes
again (a failed probe could otherwise pin "unknown GPU" -> Ultra).
2. Linux without a GL probe: the classifier now reads the sysfs PCI id
(Steam Deck parts, Intel integrated vs Arc, NVIDIA).
3. AMD/Intel rules rewritten against real renderer strings: "Radeon RX
Vega 11 Graphics" and other Vega/"Radeon Graphics"/R5-R7/680M-890M APUs
are integrated (Low); RX/Pro/W cards and Strix Halo are Ultra; the Intel
Arc iGPU is Low, Arc A/B cards Ultra. quality_presets_test holds a
44-row table of Windows, Mesa (incl. Steam Deck LCD/OLED, zink) and macOS
GL_RENDERER strings, plus probe-failure and headless cases.
5. generated/OpenBIOS.emitter.sha re-stamped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Owner correction: low-end machines (software GL, Steam Deck, mobile GPUs,
integrated GPUs up to the 890M/Iris Xe class, Apple M1/M2 base, GeForce
MX/GT, fewer than 5 threads, under 6 GB) start on Low; every other machine
starts on Ultra with the dynamic systems as its safety net. Medium and High
are manual choices.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Owner decision: Ultra on first launch, with dynamic resolution, Smooth
motion from surplus and the adaptive aspect as the live safety net. Apple
silicon, discrete GPUs, unknown GPUs and 8 GB machines now detect as Ultra;
software GL, Steam Deck, mobile, Intel HD/UHD and small AMD iGPUs stay Low,
mid iGPUs Medium; fewer than 4 threads or under 6 GB still caps.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A title may declare [quality.low|medium|high|ultra] tables of [video] keys.
On first launch, and when the hardware fingerprint changes while a preset is
in force, psxrecomp detects the CPU, threads, RAM and GPU (OS facts; a hidden
1x1 GL window reads GL_RENDERER only when a detection is due and the OS did
not name the GPU), picks the matching preset and saves quality_preset,
quality_base, quality_hardware and quality_detected to settings.toml.
- Each preset is the whole game.toml re-parsed with its keys over [video], so
every [video] key works in a preset with its usual validation.
- A preset in force owns its keys: saved settings.toml values for them are
ignored. Custom (the player changed a governed setting in the launcher)
applies the player's values over quality_base and is never overridden;
new hardware under Custom is only reported.
- Launcher: GameInfo.quality_* (offered mask, detected preset, hardware
summary, quality_apply / quality_redetect callbacks) and
Settings.quality_preset/quality_base, behind RECOMP_LAUNCHER_HAS_QUALITY_PRESETS.
- PSX_QUALITY=<preset> for one run, PSX_QUALITY_REDETECT=1.
- Titles without [quality.*] are unchanged.
Rules (quality_tier.c) and the decision are unit-tested in
quality_presets_test; docs/QUALITY_PRESETS.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The detector cannot prove a loop has no later counter-dependent exit, so
the extension now skips only at block-edge PCs the title lists after an
audit. Unlisted sites are never skipped; an empty list disables it. Docs
record R4's v_wait audit as the reference; tests cover unlisted sites.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Last-store tracking: memory.c owns the record and writes it only while
the extension is on (g_psx_track_last_store); main.cpp hands it and the
host writer (psx_host_write_word) to psx_cycles.c through
psx_idle_skip_set_store_tracker / _set_host_writer, so psx_cycles.c no
longer references memory.c (fixes the tests that link one without the
other).
- Exact from boot: the device distance is now measured from the current
cycle (devices report it from their last service, up to a few hundred
cycles behind), and several edges per pass are accepted only together
with a counter store. Before this, R4's boot diverged at frame 962 (an
OpenBIOS multi-edge poll and a late VBlank IRQ after a v_wait skip).
- tests/test_idle_skip_store_counter.c: a v_wait trace skips (whole
passes, counter lowered by the host writer, never to the timeout, lands
before the event); an extra store, an MMIO read, a decrement of 2, a
store to MMIO, the option off and no host writer do not.
- generated/OpenBIOS.emitter.sha re-stamped.
R4 frame_fingerprint off vs on, 9000 frames each: boot through intro and
attract, a 1P race and a 2P VS race: cyc, mmio, mc, sp, sc and qc
identical on every frame, 0 dispatch misses.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
idle_skip only skipped loops with zero stores and a single interrupt-check
edge, so it never fired on PsyQ libetc's v_wait -- the VSync(0)/VSync(n)
spin most PsyQ titles run each frame -- which decrements a stack timeout
word every pass and crosses two block edges.
New opt-in on top of idle_skip, [runtime] idle_skip_store_counters
(PSX_IDLE_SKIP_EXT=0/1 for one run):
- an iteration may span up to 8 block edges; the first edge is the anchor
and the edge count must be stable;
- one word store per iteration to the same RAM/scratchpad address whose
value drops by exactly 1 (a register holding it may drop with it).
Skips lower the counter by k (never to <= 1) and, for multi-edge loops, land
on the anchor strictly before the next device event so an IRQ is taken at
the same edge as without the skip. memory.c records the last word store's
address and value for the detector.
R4 race, 3600 frames from one savestate, held input: cyc, mmio, mc, sp, sc
and qc identical every frame; wc differs only by the elided counter stores.
Release build on an Apple M4: emulation-thread busy 47.5% -> 34.9% at 60 Hz.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Matt Stanley