chore: import upstream snapshot with attribution

2026-07-13 12:58:35 +08:00
commit 85453da49f
4031 changed files with 710987 additions and 0 deletions
@@ -0,0 +1,250 @@
+#!/usr/bin/env node
+/* check-occlusion.cjs — pixel-perfect occlusion gate (Node port of check-occlusion-v2.py).
+ * Runs measure-layout.cjs (real Chromium DOM rects), reads the subject-matte alpha via sharp,
+ * computes per-word / per-cap occlusion. No Python.
+ *   node check-occlusion.cjs <project-dir> [--strict] [--word-fail F] [--word-warn F] [--cap-fail F] [--remeasure]
+ */
+const path = require("path");
+const fs = require("fs");
+const os = require("os");
+const cp = require("child_process");
+
+function hfResolve(pkg) {
+  const roots = [
+    process.env.HYPERFRAMES_ROOT,
+    path.resolve(__dirname, "..", "..", ".."),
+    path.join(os.homedir(), "Downloads", "hyperframes"),
+  ].filter(Boolean);
+  for (const root of roots) {
+    const cands = [path.join(root, "node_modules", pkg)];
+    const bun = path.join(root, "node_modules", ".bun");
+    try {
+      if (fs.existsSync(bun))
+        for (const d of fs.readdirSync(bun))
+          if (d.startsWith(pkg + "@")) cands.push(path.join(bun, d, "node_modules", pkg));
+    } catch {}
+    for (const c of cands) {
+      try {
+        if (fs.existsSync(c)) return require(c);
+      } catch {}
+    }
+  }
+  console.error(`[v2] cannot find ${pkg} — set HYPERFRAMES_ROOT`);
+  process.exit(3);
+}
+const sharp = hfResolve("sharp");
+
+function ensureLayoutMeasured(project, force) {
+  const lp = path.join(project, "_layout.json"),
+    idx = path.join(project, "index.html");
+  let stale = force || !fs.existsSync(lp);
+  if (!stale && fs.existsSync(idx) && fs.statSync(idx).mtimeMs > fs.statSync(lp).mtimeMs)
+    stale = true;
+  if (stale)
+    cp.execFileSync("node", [path.join(__dirname, "measure-layout.cjs"), project], {
+      stdio: "inherit",
+    });
+  return JSON.parse(fs.readFileSync(lp, "utf8"));
+}
+async function loadAlphaMask(png) {
+  if (!fs.existsSync(png)) return null;
+  const { data, info } = await sharp(png)
+    .ensureAlpha()
+    .extractChannel(3)
+    .raw()
+    .toBuffer({ resolveWithObject: true });
+  return { data, W: info.width, H: info.height };
+}
+function occlusionForRect(m, x, y, w, h) {
+  if (!m) return 0;
+  const x0 = Math.max(0, Math.round(x)),
+    y0 = Math.max(0, Math.round(y));
+  const x1 = Math.min(m.W, Math.round(x + w)),
+    y1 = Math.min(m.H, Math.round(y + h));
+  if (x1 <= x0 || y1 <= y0) return 0;
+  let cnt = 0,
+    tot = 0;
+  for (let yy = y0; yy < y1; yy++) {
+    const row = yy * m.W;
+    for (let xx = x0; xx < x1; xx++) {
+      tot++;
+      if (m.data[row + xx] > 128) cnt++;
+    }
+  }
+  return tot ? cnt / tot : 0;
+}
+function argf(name, d) {
+  const i = process.argv.indexOf(name);
+  return i >= 0 ? parseFloat(process.argv[i + 1]) : d;
+}
+
+async function main() {
+  const project = path.resolve(process.argv[2] || "");
+  if (!process.argv[2]) {
+    console.error("usage: check-occlusion.cjs <project-dir> [--strict]");
+    process.exit(1);
+  }
+  const strict = process.argv.includes("--strict");
+  const wordFail = argf("--word-fail", 0.65),
+    wordWarn = argf("--word-warn", 0.35),
+    capFail = argf("--cap-fail", 0.5);
+  const layout = ensureLayoutMeasured(project, process.argv.includes("--remeasure"));
+  const framesDir = path.join(project, "frames_fg");
+  if (!fs.existsSync(framesDir)) {
+    console.error(`[v2] missing ${framesDir}`);
+    process.exit(2);
+  }
+  const planPath = path.join(project, "plan.json");
+  const plan = fs.existsSync(planPath) ? JSON.parse(fs.readFileSync(planPath, "utf8")) : {};
+  const planLayer = plan.caption_layer || "bg";
+  // Hero groups (the ONE big promoted word) are SUPPOSED to sit ON the subject — for them
+  // occlusion is a TARGET (~30–55%), not "minimize". Collect their ids for the advisory below.
+  const heroIds = new Set();
+  const heroIn = {};
+  for (const g of plan.groups || [])
+    if (g && (g.hero === true || /^(hero|crown)$/i.test(g.plane || ""))) {
+      heroIds.add(g.id);
+      heroIn[g.id] = g.in;
+    }
+  if (plan.crown_group && plan.crown_group.id) {
+    heroIds.add(plan.crown_group.id);
+    heroIn[plan.crown_group.id] = plan.crown_group.in;
+  }
+  const M = 2; // frame-edge tolerance (px) — matches check-overflow.cjs
+  const frameW = layout.width,
+    frameH = layout.height;
+
+  const capStats = {};
+  for (const sample of layout.samples) {
+    const png = path.join(framesDir, `f_${String(sample.frame_idx).padStart(4, "0")}.png`);
+    const mask = await loadAlphaMask(png);
+    if (!mask) continue;
+    for (const cap of sample.caps) {
+      const entry = (capStats[cap.id] ||= { layer: cap.layer || planLayer, samples: [] });
+      const wordsData = [];
+      for (const w of cap.words || []) {
+        if ((w.opacity ?? 1) < 0.3) continue;
+        wordsData.push({ text: w.text, occlusion: occlusionForRect(mask, w.x, w.y, w.w, w.h) });
+        // Frame-edge overflow — clipped SETTLED text is always wrong; a hero's first
+        // 0.5s is its entrance TRANSIENT (slam over-scale, streak fly-in pass through
+        // off-frame states by design) — judge overflow on the hold, not mid-flight.
+        if (heroIds.has(cap.id) && heroIn[cap.id] != null && sample.t < heroIn[cap.id] + 0.5)
+          continue;
+        const off = {
+          left: Math.max(0, Math.round(-w.x - M)),
+          right: Math.max(0, Math.round(w.x + w.w - frameW - M)),
+          top: Math.max(0, Math.round(-w.y - M)),
+          bottom: Math.max(0, Math.round(w.y + w.h - frameH - M)),
+        };
+        const score = off.left + off.right + off.top + off.bottom;
+        if (score > 0 && (!entry.overflow || score > entry.overflow.score))
+          entry.overflow = { text: w.text, off, score, t: sample.t };
+      }
+      const capOccl = occlusionForRect(
+        mask,
+        cap.cap_bbox.x,
+        cap.cap_bbox.y,
+        cap.cap_bbox.w,
+        cap.cap_bbox.h,
+      );
+      entry.samples.push({
+        t: sample.t,
+        cap_occl: capOccl,
+        cap_bbox: cap.cap_bbox,
+        words: wordsData,
+      });
+    }
+  }
+
+  const failures = [];
+  console.log(
+    `[v2] ${path.basename(project)}  word-fail≥${(wordFail * 100).toFixed(0)}%  cap-fail≥${(capFail * 100).toFixed(0)}%`,
+  );
+  for (const [gid, entry] of Object.entries(capStats)) {
+    // Frame-edge overflow applies to every layer (fg too). The skill allows the
+    // climax a few-px graze on the first/last letter, so only a clear glyph clip
+    // (>8px past an edge) is a hard FAIL; a sub-glyph graze is a WARN.
+    if (entry.overflow) {
+      const o = entry.overflow;
+      const maxOff = Math.max(o.off.left, o.off.right, o.off.top, o.off.bottom);
+      const sides = Object.entries(o.off)
+        .filter(([, v]) => v > 0)
+        .map(([s, v]) => `${s} ${v}px`)
+        .join(", ");
+      const hard = maxOff >= 8;
+      console.log(
+        `  ${gid}  [overflow${hard ? "" : "-warn"}] "${o.text}" off-frame: ${sides} (@${o.t}s)` +
+          (hard ? " — cropped text is always wrong" : " (graze — within climax tolerance)"),
+      );
+      if (hard && !failures.includes(gid)) failures.push(gid);
+    }
+    if (entry.layer === "fg") {
+      console.log(`  ${gid}  fg    (occlusion skipped — fg renders above matte)`);
+      continue;
+    }
+    const capOccls = entry.samples.map((s) => s.cap_occl);
+    const avgCap = capOccls.length ? capOccls.reduce((a, b) => a + b, 0) / capOccls.length : 0;
+    const peakCap = capOccls.length ? Math.max(...capOccls) : 0;
+    const wordPeaks = {};
+    for (const s of entry.samples)
+      for (const wd of s.words)
+        wordPeaks[wd.text] = Math.max(wordPeaks[wd.text] || 0, wd.occlusion);
+    const oblit = Object.entries(wordPeaks).filter(([, p]) => p >= wordFail);
+    const warn = Object.entries(wordPeaks).filter(([, p]) => p >= wordWarn && p < wordFail);
+    let status = "OK";
+    // HERO caps WANT occlusion (~30–55% is the embed); the generic cap threshold would
+    // fail a working hero. Heroes fail only past the feasibility ceiling (68%).
+    const capLimit = heroIds.has(gid) ? Math.max(capFail, 0.68) : capFail;
+    if (oblit.length || peakCap >= capLimit) {
+      status = "FAIL";
+      failures.push(gid);
+    } else if (warn.length) status = "WARN";
+    let s = "";
+    if (oblit.length)
+      s =
+        oblit
+          .slice(0, 5)
+          .map(([t, p]) => `${t}(${(p * 100).toFixed(0)}%)`)
+          .join(" ") + (oblit.length > 5 ? ` …+${oblit.length - 5}` : "");
+    else if (warn.length)
+      s =
+        "[warn] " +
+        warn
+          .slice(0, 3)
+          .map(([t, p]) => `${t}(${(p * 100).toFixed(0)}%)`)
+          .join(" ");
+    console.log(
+      `  ${gid}  ${entry.layer}  avg ${(avgCap * 100).toFixed(0)}%  peak ${(peakCap * 100).toFixed(0)}%  ${status}  ${s}`,
+    );
+    // HERO target-occlusion advisory (not a failure): a hero should sit ON the subject
+    // (~30–55%). If it barely grazes, it reads as a small floating word, not an embed.
+    if (heroIds.has(gid) && peakCap < 0.15) {
+      // METRIC HONESTY: this advisory uses CAP-AREA occlusion, which saturates ~15%
+      // for a width-filled hero over a narrow subject (the 30–55% figure elsewhere is
+      // the safe-zones BAND metric — different denominator). If the hero already owns
+      // the width, "center it + make it BIG" is unactionable — stay quiet.
+      const widest = Math.max(...entry.samples.map((sm) => (sm.cap_bbox && sm.cap_bbox.w) || 0), 0);
+      if (widest >= frameW * 0.8) {
+        console.log(
+          `  ${gid}  [hero-ok] peak ${(peakCap * 100).toFixed(0)}% cap-area — width-saturated hero over a narrow subject; cap-area can't reach the band target (this is the geometry, not a layout fault).`,
+        );
+      } else {
+        console.log(
+          `  ${gid}  [hero-weak] peak ${(peakCap * 100).toFixed(0)}% — hero barely crosses the subject; it should sit ON the subject (~30–55% by the safe-zones BAND metric = the embed effect). Center it (safe-zones heroAnchor) + make it BIG; don't park it in a clean margin.`,
+        );
+      }
+    }
+  }
+  if (failures.length) {
+    const uniq = [...new Set(failures)];
+    console.error(`\n[v2] ${uniq.length} cap(s) FAIL: ${uniq.join(", ")}`);
+    console.error(
+      "  → occlusion: set that cap's layer to fg, OR shrink/reposition;  overflow: shrink/reposition (fg won't help)",
+    );
+  }
+  process.exit(strict && failures.length ? 2 : 0);
+}
+main().catch((e) => {
+  console.error("[v2]", e.message);
+  process.exit(1);
+});