From d3a2604e30b1deb91afebf550a79cde71bbca6d6 Mon Sep 17 00:00:00 2001
From: "Somhairle H. Marisol" <muqiu-han@outlook.com>
Date: Mon, 28 Sep 2026 18:48:05 +0800
Subject: p42: 启动/菜单水面涟漪整改 — 振幅0.32+波峰列, 帧差14.3, 防降振回归
 (leader fix: 提交+推送)
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---
 scripts/make-p42-menu-closeup.py | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 scripts/make-p42-menu-closeup.py

(limited to 'scripts/make-p42-menu-closeup.py')

diff --git a/scripts/make-p42-menu-closeup.py b/scripts/make-p42-menu-closeup.py
new file mode 100644
index 0000000..64d885f
--- /dev/null
+++ b/scripts/make-p42-menu-closeup.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+"""P42 evidence: NEAREST 2x close-up of the animated start-menu band.
+
+Crops the lower scene band of the `LV_P42_SHOT=1` menu frame -- the bank lanterns
+and the rippling water band -- and upscales exactly 2x with NEAREST so pixel edges
+stay sharp.  Deterministic: fixed crop box, pure function of the input PNG.
+
+Usage:
+    python3 scripts/make-p42-menu-closeup.py <record-dir> <out-dir>
+"""
+
+import sys
+from pathlib import Path
+
+from PIL import Image
+
+CROPS = [
+    ("p42-menu-anim.png", (160, 440, 1120, 720), "p42-menu-anim-2x.png"),
+]
+
+
+def main(argv):
+    if len(argv) != 3:
+        sys.stderr.write(__doc__)
+        return 2
+    record_dir = Path(argv[1])
+    out_dir = Path(argv[2])
+    out_dir.mkdir(parents=True, exist_ok=True)
+    for source_name, box, out_name in CROPS:
+        source = Image.open(record_dir / source_name).convert("RGBA")
+        crop = source.crop(box)
+        doubled = crop.resize((crop.width * 2, crop.height * 2), Image.NEAREST)
+        doubled.save(out_dir / out_name)
+        print(f"ok {out_name} {doubled.width}x{doubled.height} from {source_name} box={box}")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main(sys.argv))
-- 
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