TDEC-a2 (v2): decoration geometry and the decoration capture, restacked onto the text stack

.gitattributes

@@ -12,15 +12,18 @@ packages/dragon/src/profiles/android.ts merge=dragon-generated
 packages/dragon/src/profiles/web.ts merge=dragon-generated
 packages/dragon/src/profiles/native-lanes.ts merge=dragon-generated
 packages/parity/expected-dpr/** merge=dragon-generated
+packages/parity/expected-hit/*.hit.json merge=dragon-generated
 packages/layout/vectors/*.json merge=dragon-generated
 packages/layout/vectors/text-latin/dpr-1/** merge=dragon-generated
 packages/layout/vectors/dpr-*/** merge=dragon-generated
 packages/layout/vectors/text-latin/dpr-2/** merge=dragon-generated
 packages/layout/vectors/text-latin/dpr-3/** merge=dragon-generated
 packages/layout/vectors/text-latin/dpr-2.625/** merge=dragon-generated
+packages/layout/rt-vectors/hit/** merge=dragon-generated
 packages/layout/break-vectors/** merge=dragon-generated
 packages/parity/expected-breaks/** merge=dragon-generated
 packages/parity/expected-pixels/** merge=dragon-generated
+packages/parity/expected-decorations/** merge=dragon-generated
 packages/layout/paint-vectors/*/vectors.json merge=dragon-generated
 packages/layout/generated/** merge=dragon-generated
 packages/translate/corpus.json merge=dragon-generated

THIRD_PARTY_NOTICES.md

@@ -27,9 +27,13 @@ Those files are under the licences below, with the copyright lines from their he
 - `third_party/blink/renderer/core/layout/inline/line_breaker.cc`: Copyright 2016 The Chromium Authors
 - `third_party/blink/renderer/core/layout/inline/line_utils.cc`: Copyright 2018 The Chromium Authors
 - `third_party/blink/renderer/core/layout/length_utils.cc`: Copyright 2016 The Chromium Authors
+- `third_party/blink/renderer/core/layout/text_decoration_offset.cc`: Copyright 2017 The Chromium Authors
 - `third_party/blink/renderer/core/paint/box_border_painter.cc`: Copyright 2015 The Chromium Authors
 - `third_party/blink/renderer/core/paint/contoured_border_geometry.cc`: Copyright 2020 The Chromium Authors
+- `third_party/blink/renderer/core/paint/decoration_line_painter.cc`: Copyright 2014 The Chromium Authors
 - `third_party/blink/renderer/core/paint/text_decoration_info.cc`: Copyright 2020 The Chromium Authors
+- `third_party/blink/renderer/core/paint/text_fragment_painter.cc`: Copyright 2017 The Chromium Authors
+- `third_party/blink/renderer/core/paint/text_painter.cc`: Copyright 2017 The Chromium Authors
 - `third_party/blink/renderer/core/style/border_edge.cc`: Copyright 2014 The Chromium Authors
 - `third_party/blink/renderer/platform/fonts/script_run_iterator.cc`: Copyright 2015 The Chromium Authors
 - `third_party/blink/renderer/platform/fonts/shaping/font_features.cc`: Copyright 2021 The Chromium Authors
@@ -92,6 +96,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 - `third_party/skia/src/core/SkPathRawShapes.cpp`: Copyright 2025 Google LLC.
 - `third_party/skia/src/core/SkRRect.cpp`: Copyright 2012 Google Inc.
 - `third_party/skia/src/core/SkScan_AAAPath.cpp`: Copyright 2016 The Android Open Source Project
+- `third_party/skia/src/core/SkScan_Antihair.cpp`: Copyright 2011 The Android Open Source Project
 - `third_party/skia/src/core/SkScan_AntiPath.cpp`: Copyright 2006 The Android Open Source Project
 - `third_party/skia/src/core/SkStrikeSpec.cpp`: Copyright 2019 The Android Open Source Project
 - `third_party/skia/src/core/SkStroke.cpp`: Copyright 2008 The Android Open Source Project

docs/goals/milestone-2-proof/notes/PM-2026-10-01.md

@@ -302,3 +302,29 @@ Four cases go to 0 on both targets:
 - **Device evidence:** from its own tree (476/476 on 5 devices).
 - **Next in the merge order:** #68 (T116), with its final catch-up now. Then REPL-a 2/3.
 - **The INL1a lane:** builds B1 next.
+
+## Train 1: review-clean members and the freeze plan (2026-10-02)
+
+**Review-clean members.** #59 (T128), #60 (CALC-2) and #61 (T130) passed review on their catch-up base.
+
+**What happened.** #66 merged while T129 and seld-r1 were catching up. Now #59 and #61 have real source conflicts with master. Catching up by hand cannot converge: a round costs about an hour, and master merges about once an hour.
+
+**PM ruling: freeze master for train 1, after #68 merges.** While the train runs, only docs/goals pushes reach master.
+
+**What the train does.** Each member resolves its conflicts once against the frozen master, then runs its review loop. After that, `pnpm train build/check/land` runs one regen and one device run per position. The train lane may run `land` itself for this train.
+
+**What waits.** REPL-a 2/3 and B1 wait for the train.
+
+## REPL-a 2/3 and 3/3: train 2 (PM ruling)
+
+**The problem.** repl-a (#69) alone would raise device-pixels from iOS 65 to 555 and from Android 94 to 824. Phase A paints only the replaced box, and the image itself comes in Phase B.
+
+**The ruling.** 2/3 and 3/3 land together as train 2, right after train 1. Both catch up to the frozen master and go through review first.
+
+**The 0×N image question.** A Chrome capture is impossible, because PNG and JPEG forbid zero dimensions. Instead there is a reject fixture, and the engine rule stays pinned by a unit test.
+
+## #68 merged (T116). FREEZE starts for train 1.
+
+- **Master device-pixels:** iOS 57, Android 86 (session start: 135 and 182). T144 closes as a duplicate.
+- **The review:** five rounds on p6a-dash-oracle.test. The occlusion model was re-audited end to end: Appendix E paint order, flex order, painted extents, overflow clip chains with abspos escape, and transparent text.
+- **FREEZE:** only docs/goals pushes reach master until train 1 (#59, #60, #61, T129, seld-r1) has landed. Train 2 (REPL-a 2/3 and 3/3) follows.

docs/goals/milestone-2-proof/state.yaml

@@ -4045,7 +4045,7 @@ tasks:
   - id: T144
     type: worker
     assignee: Worker
-    status: blocked
+    status: done
     lane: paint
     objective: 'SNAP-1PX: position-absolute-out-of-flow(-rtl) i2 bottom 1px border at DPR 3: native paints 64 coverage where Chrome is solid (iOS 4, Android 4). Snap border edges as Blink does.'
     receipt: