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ingolfteetzandClaude Opus 5.5
4700c8a74e
The CRX 0x200 QP map opens with its first symbol as a 32-bit literal; every
later symbol is Rice coded with a limited-length escape: 23 zeros, the
terminating 1 and the symbol in 8 bits (the ITU-T T.87 layout for a 32-bit
limit and 8-bit symbols, without its minus-one offset). The old rule (an
escape after 16 zeros with a 16-bit literal) matched only the first symbol,
which is all the R8 and R7 maps need. R5 Mark II maps (QP 150-162) jump by up
to 12 where the Rice parameter is 0, giving 18- to 22-zero prefixes that
misparsed ("Canon CRX adaptive QP value -21087"): 174 of 306 sampled files
from a private R5 Mark II library opened as previews. Every QP map of its
33,665 C-RAW files now decodes to the exact end of its entropy stream; the six
oracle fixtures are unchanged. Established by black-box analysis of the
bitstream; no third-party decoder source consulted.
Adds the four CC0 R5 Mark II samples (raw.pixls.us 7881-7884) to the corpus
with pinned sensor hashes (the crop-mode framing is left to #754), bumps
RENDER_CACHE_VERSION to 43, and updates cr3.md, raw-parity (235 verified
models), coverage, gaps, the checklist rows, ROADMAP, target-app-parity and
What's New.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
12 KiB
12 KiB
LightCraft roadmap
Stage: alpha · next: beta, ~14 points and ~340–600 h away
Last reviewed: 2026-10-10 · Last updated: 2026-10-11 · Change: minor (EOS R5 Mark II CR3 verified; RAW decoding 77%) · Target: Adobe Lightroom Classic 15.5 / Lightroom 9.6
One-page summary of how close LightCraft is to Adobe Lightroom. Agents: read this, then pick work from docs/gaps.md. The full assessment, method and evidence are in docs/target-app-parity.md.
Headline numbers
| Value | Kind | |
|---|---|---|
| Feature breadth (checklist) | 81.1% of 517 rows (P0 98.0%, P1 95.1%, P2 46.9%) | measured: parity-checklist.md recount |
| Feature breadth (weighted by use) | ~77% | estimated |
| Ready for real work (full target) | ~61% (56–66%) | estimated: weighted sum over the dimensions |
| Mainstream practitioner | ~49% (44–54%) | estimated |
| Essentials user | ~64% (59–69%) | estimated |
| Remaining to beta | ~340–600 h (Opus 5.5 agent hours, ~60% parallel) | estimated |
| Remaining to full parity | ~1,000–1,800 h (~70% parallel) | estimated |
Each audience with its own hours (Opus 5.5 agent wall-clock hours to ~95%):
| Audience | Ready | Opus 5.5 agent wall-clock hours to ~95% | Work that dominates |
|---|---|---|---|
| Full target (ready for real work) | ~61% | 1,000–1,800 h (~70% parallelizes) | raw colour, lens and camera data; AI models; Classic output modules; localization; plug-in ecosystem |
| Mainstream practitioner | ~49% | 450–840 h (~60% parallelizes) | camera colour and render fidelity; CR3 / ORF / HE NEF; lens database; subject / sky masks; Lightroom XMP exchange; stability |
| Essentials user | ~64% | 160–300 h (~50% parallelizes) | default raw look for popular cameras; launch stability; basic-slider feel; opening CR3 / HEIC files people send |
The gap between breadth and readiness is quality and coverage, not missing buttons: camera colour is estimated rather than measured, CR3 decodes on four verified Canon bodies, compressed ORF and HE NEF open as previews, rendering is tuned by eye, AI masks are heuristics, there is no lens database, and tests run in CI on FreeBSD only. Why alpha: core workflows run end to end, but readiness is below the ~75% beta bar (it is above the ~40% alpha bar) and Lightroom's main inputs, raw files, still have blocking gaps (Canon, ~30% of raw users, decodes CR3 on four verified bodies). It passes the alpha gate: all six core workflows (import, cull, develop, save and reopen, batch looks, export) work end to end on macOS (docs/roadmap.md). The three readiness numbers and their weights and discounts are in target-app-parity.md. Hours are calibrated on this repo's PR history; see target-app-parity.md.
By dimension
| Dimension | Ready | Breadth | Remaining | Doc |
|---|---|---|---|---|
| Features | ~61% | ~77% (checklist 81.1%) | 600–1,100 h | target-app-parity |
| ↳ RAW cameras, colour, lens profiles | ~56% | 81% of 1,446 Adobe models decode, 16% verified | 255–480 h | raw-parity |
| UI/UX fidelity | ~70% | ~85% | 40–70 h | ui-parity |
| File formats (non-raw) | ~70% | ~85% | 30–55 h | file-format-parity |
| Hardware | ~40% | ~50% | 40–80 h | hardware-parity |
| Localization | ~52% of the 12 key languages | 7 of 12 present | 130–210 h (+145–255 h new scripts) | localization-parity |
| Performance | ~70% | ~80% | 30–50 h | target-app-parity |
| Stability | ~60% | — | 30–60 h | target-app-parity |
| Platforms | ~60% | macOS, Windows, Linux, FreeBSD, web | 25–45 h | target-app-parity |
| Ecosystem / plug-ins | ~15% | ~25% | 40–80 h | target-app-parity |
| AI features | ~20% | ~30% | 120–220 h (overlaps features) | target-app-parity |
Features
| Area | Ready | Breadth | Remaining |
|---|---|---|---|
| Import and library | 80% | 90% | 25–45 h |
| RAW decoding and camera coverage | 77% | 81% | 120–220 h |
| Colour, camera profiles, render fidelity | 35% | 65% | 80–150 h |
| Global develop adjustments | 70% | 93% | 30–60 h |
| Optics, lens profiles, crop and geometry | 50% | 80% | 40–80 h |
| Masking | 45% | 67% | 60–110 h |
| Remove, heal, Enhance | 30% | 45% | 70–130 h |
| Presets, profiles, versions, sync | 85% | 95% | 8–15 h |
| Export | 75% | 89% | 15–30 h |
| Merge and HDR | 60% | 85% | 20–35 h |
| Views, compare, zoom, culling | 70% | 90% | 15–30 h |
| Classic output modules (Map, Book, Slideshow, Print, publish, tethering) | 10% | 15% | 90–150 h |
| Video | 0% | 0% | 25–45 h |
Weights and evidence: target-app-parity.md.
Languages
Measured from crates/ui-egui/locales (share of 2,304 catalog messages translated); none is full
while lower-layer errors stay English. Detail: localization-parity.md.
| Language | Code | Translated | Status |
|---|---|---|---|
| English | en | 100% | full (source) |
| Simplified Chinese | zh-hans | 87% | partial |
| Spanish | es | 86% | partial |
| Hindi | hi | 0% | none (no Devanagari shaping) |
| Arabic | ar | 0% | none (no RTL / shaping) |
| French | fr | 88% | partial |
| Portuguese (Brazil) | pt-br | 85% | partial |
| Indonesian | id | 0% | none |
| Japanese | ja | 87% | partial |
| German | de | 91% | partial |
| Korean | ko | 0% | none (no Hangul face) |
| Vietnamese | vi | 0% | none |
Also shipped: Traditional Chinese (87%), Russian (74%), Ukrainian (99%).
Upcoming
Ranked toward beta; detail in docs/roadmap.md, gaps in docs/gaps.md.
- Camera colour of our own: measured calibration for the popular models (50–90 h)
- CR3 for every Canon body (25–45 h)
- Render-fidelity suite against Lightroom, then tuning (30–60 h)
- Full-resolution zoom (8–15 h)
- AI masks: Subject / Sky / People (40–70 h + model decision)
- Compressed ORF and HE NEF (28–55 h)
- Lens profile database of our own (40–80 h)
- Tests in CI on macOS, Windows and Linux (6–12 h)
- Per-model raw verification (20–35 h)
Progress log
- 2026-10-11: Canon EOS R5 Mark II C-RAW decodes from sensor data (57% of its files opened as a preview): the CRX QP map's first-symbol literal and limited-length escape; four CC0 R5 Mark II files pinned, the QP maps of 33,665 private C-RAW files decode exactly (cr3.md). 235 models verified; RAW decoding 76% → 77%; headline numbers unchanged.
- 2026-10-10 (UI docking): Library, Tools, and Presets panels can be regrouped, split, floated within the app window, closed, and reopened. Tools keeps the current Edit/Crop/Masking mode; the photo view and filmstrip stay together. Panel moves and reset are available as UI commands, and saved UI preferences retain arrangements. Widget state styling uses the shared
craft-uitheme helper, retaining the dark palette, typography, spacing and per-state borders. No readiness percentage change. - 2026-10-10 (RAW): RAW measured model by model against Adobe's 1,446-model list (234 verified, 943 unverified, 233 preview-only, 36 unsupported; ~84% of photographers' cameras decode, ~40% on a verified body). Full ~61%, mainstream ~49%, essentials ~64%; beta ~14 points away.
- 2026-10-10 (final): full ready is a weighted sum over the dimensions (~59%; method aligned with the standard); mainstream practitioner ~51% (450–840 h), essentials user ~63% (160–300 h); alpha gate passes.
- 2026-10-10: full re-measure for the progress-docs standard: stage alpha, ready ~55%, checklist
81.1%; new docs (target-app-parity, gaps, roadmap, architecture, raw / file-format / hardware / UI
/ localization parity);
docs/parity.mdrenameddocs/parity-checklist.md. Landed today: Nikon lossy-after-split NEF (#633), ORF 12.8 bpp (#651), HDR gain map JPEG / PQ AVIF / float TIFF export (#646), Lightroom-like Auto (#628), activity stack. - 2026-10-09: Sony ILCE-7CR camera colour: bundled profile from 125 photos; on 26 withheld photos mean ΔE vs the camera JPEG 4.07 → 3.29. HEIC in release builds (#609), Samsung uncompressed SRW, contact-sheet PDF export, Ukrainian and French UI, release v0.5.0.
- 2026-10-08: independent Rust CR3 lossless and version 0x100/0x200 C-RAW decoding, six exact full-sensor regressions on M50 / R100 / R8; guarded CR3 camera-JPEG colour fitting (cr3.md).
- 2026-10-08: Fujifilm lossless / lossy compressed RAF: pure-Rust striped decoder, full sensor arrays verified on 17 CC0 and 7 supplied files (13 bodies). Fujifilm camera colour: bundled X-H2S / X-T4 profiles from 201 / 545 photos; on 150 withheld files mean ΔE X-H2S 1.70 → 1.62, X-T4 2.43 → 2.34. AI RAW denoise (#384), Lightroom catalog import, German, Spanish and Russian UI.
- 2026-10-07: Panasonic RW2 / Leica RWL / Panasonic RAW decode in every raw format, established on 178 CC0 files from 118 bodies; RW2 file-local camera look (140 of 174 files). Faces: recognition in pure Rust and People view.
- 2026-10-03 – 10-05: community PRs (#42–#51, #60) and 25+ issues: compressed NEF, Move import, folder templates, Local roots and cleanup, 85k-photo grid and catalog performance, background compaction, failed-save errors, GPU export hardening. Added the honest Where we stand assessment and tracker rows for camera colour, camera coverage and render fidelity.
- 2026-10-02: parity estimate added (
cargo xtask parityprints weighted completion); milestones refreshed. - 2026-10-01: RAW II formats: RAF (uncompressed Bayer + X-Trans), RW2 (packed), PEF (incl. Huffman), ORF (uncompressed); embedded previews for every container incl. CR3; raw corpus test with 37 CC0 samples.
- 2026-09-30 (later): app running with the full Lightroom-style UI; pipeline v0; DNG / CR2 / ARW; README showcase. ≈ 8 h elapsed.
- 2026-09-30: roadmap created; M0 in progress; research docs (Lightroom reference, Rust imaging ecosystem) complete.
Revision history
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | EOS R5 Mark II CR3 verified: CR3 on four verified bodies, RAW decoding 76% → 77%; headline numbers unchanged |
| 2026-10-10 | minor | RAW measured model by model; RAW decode and colour as explicit rows: full 59% → 61%, mainstream 51% → 49%, essentials 63% → 64%; beta ~14 points |
| 2026-10-10 | minor | Full ready restored to the additive weighted sum (~59%; method aligned with the standard, no new evidence); hours per audience; beta ~16 points away |
| 2026-10-10 | minor | Mainstream practitioner and essentials user numbers; full ready 55% → 46% (method written down); beta 340–600 h |
| 2026-10-10 | minor | Alpha gate added (core-workflow check): passes, stays alpha |
| 2026-10-10 | major | Restructured to the progress-docs standard; re-measured; Where we stand, Parity estimate and Totals moved to docs/target-app-parity.md, milestones and risks to docs/roadmap.md, raw coverage to docs/raw-parity.md, catalog migration to docs/file-format-parity.md, CJK notes to docs/localization-parity.md |
| 2026-10-08 | minor | Where we stand by dimension and by kind of user |
| 2026-10-02 | major | Parity estimate and effort table |
| 2026-09-30 | major | Created |