Model v2 anchor#970
Closed
softmarshmallow wants to merge 33 commits into
Closed
Conversation
The full redesign workbench for node geometry/layout/transform, scoped to the Rust engine (crates/grida) and the format spec (format/grida.fbs): - phase 1-2 research corpus: problems, harnesses, peer study, candidate models (anchor / sheet / bake / wire) — anchor decided by survey - the 114-test Rust lab (model-v2/a/lab): four-phase resolver (Taffy flex, oriented envelopes), typed ops incl. cross-zero flip resize (E-A14), canonical text IR, node-arena + SOA storage (11.5x resolver speedup) - the decision register (a/DECISIONS.md) with DEC-0 LOCKED: visual-only rotation (the CSS framing), CSS-pure sizing (a/dec0-visual-only.md) - peer-compat matrix (COMPAT), ship-readiness census (LIMITS), report - demo pages (a/.preview): proof, model walkthrough, edge cases, DEC-0 fork A/B, free editing - E10: the native skia interactive spike (a/spike-canvas) — feel pass + TEXTBOOK.md, the reference for the legacy migration Isolated: nothing outside model-v2/ is touched; no production code paths.
…tests, branch note); fix MODEL.md dec0 link
…ontracts (ENG-0…ENG-5), validity-tagged
…nce the snapshot) The lab's accumulated evolution on the anchor branch since the textbook snapshot, across two threads — the seams anchor-engine consumes and the DEC-0 visual-only feel study — plus a crate-wide rustfmt pass. 121-test suite green. Engine seams (additive; serde stays out of default deps): - ops.rs: typed `Op` + pure-dispatch `apply` (journal/replay/dirty land on it; free fns kept, `apply ≡ free_fn` differential per variant) + `DirtyClass` parameterized on rotation-in-flow [ENG-1.2]. - model.rs: per-slot `generations` column + `gen_of` (semantic PartialEq ignores it — a storage artifact) [ENG-2.3]. - resolve.rs: non-panicking `box_opt`/`local_opt`/`aabb_opt`/`slot_count`. - serde feature (default OFF) — the op-log wire; new tests accessors, generations, op_apply. Visual-only exploration: rotation scenes added to the edge/fork probes (grow × rotation, rotated text/frame/group) and expanded edge_census + visual_only corpora anchoring DEC-0.
…spike re-hosted anchor-engine: document → resolve → drawlist → paint, plus the read tier (query), time-as-data (journal/replay), and the sockets every future optimization plugs into (damage, ident, oracle). It consumes anchor-lab as a library — the relationship the crates/grida migration will have with the model crate. Every ENG-0…ENG-5 contract has a code socket and a guarding test; skia is confined to paint.rs so a later core/paint split is mechanical. The spike is re-hosted onto it (proof, not just scaffolding): the scene painter is deleted → drawlist::build + paint::execute (4 goldens byte-identical, incl. the rotated and cross-zero-flip scenes); pick/hover via query; gesture ops via apply, recorded in the journal (undo stays document snapshots — ENG-5.5); `--record` writes .replay corpus. The scene-cache compositor (ENG-2) rasters once into a backend-matched offscreen and blits camera pans O(1), re-rastering only on doc-change / zoom / pan-beyond-margin. Live per-stage frame instrumentation (a glFinish GPU-vs-vsync split) plus render-on-demand (draw only on real input) land the felt-latency fix. gate (ENG-0.2 oracle law): shots 4/4 IDENTICAL · replays deterministic · scene-cache differential MATCHES fresh (integer pan) · bench within budgets. Docs: ENGINE.md SETUP ground contracts (S-1…S-7), engine README (contract → module → guarding-test map), model-v2 + a/README phase-4 status.
Performance is not one question, so it is not one tool — it splits on a hard line between what a machine can measure alone and what needs a human. This is the doctrine that stops us measuring the wrong axis (as a session's detour did: render *work* was green while the felt lag lived in the *present path*). MEASURE.md — the four axes and which tool owns each: - work + correctness are automated & headless (probe / probe_gpu / gate) — the default loop, no human. - feel & pacing need a real window: the opt-in ANCHOR_FRAMELOG channel (human runs + interacts + kills; the reviewer reads the per-frame gap/stage log). An on-demand bridge, not the iteration loop. - input→photon latency is NOT software-measurable — the lag accrues in the OS compositor/display after swap_buffers returns; measuring it needs a photodiode rig or a human glance. Named so a green gate is never mistaken for good feel. The automated work axis it documents: - bin/probe — deterministic CPU raster, per-stage distributions, JSON baselines, panicking audit-guards. The always-on regression detector. - bin/probe_gpu — headless surfaceless-GL, real flush_and_submit timing, for the wins whose value is a persistent GPU texture (CPU raster reports the wrong sign there). Worked example folded in: render-on-demand (idle frames 466 → 2, throughput 125fps median — the symptom was pacing/latency, not work).
…L doctrine Two gate-verified data-layout moves aligned to browser prior art, plus the decisions doc that grounds them: - Color: fill `Option<String>` → `model::Color(u32)` (0xAARRGGBB), read straight by the drawlist. No per-node heap String, no per-build hex parse; text-IR/SVG convert at the boundary via from_hex/to_hex. Parse byte-identical to the old resolve_color (pixels unchanged, gate 4/4 IDENTICAL); build −31% at 100k nodes. - Resolve caches: HashMap<NodeId,_> → Vec<Option<_>> (union_cache, ops_cache). NodeId is a dense arena index — hashing it is the cc anti-pattern. Correctness preserved (gate PASS, 121 lab tests). - spike-canvas: `pages` stress scene (realistic nested flex cards, ANCHOR_SCENE selected) + --bench rows; goldens still use starter(). - engine/DATA-MODEL.md: six data-layout details decided against cc/Blink/Stylo/ Skia prior art, validity-tagged (ALIGNED/ADOPTED/SOCKET), with honesty corrections to the record.
|
The latest updates on your projects. Learn more about Vercel for GitHub.
5 Skipped Deployments
|
|
Important Review skippedDraft detected. Please check the settings in the CodeRabbit UI or the ⚙️ Run configurationConfiguration used: Organization UI Review profile: CHILL Plan: Pro Run ID: You can disable this status message by setting the Use the checkbox below for a quick retry:
✨ Finishing Touches🧪 Generate unit tests (beta)
Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
Member
Author
|
Relocated at the engine split: the |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
gridaco/nothing#9