From 4aa6fabbb594af1889778ff7f01ae3193dc08b1d Mon Sep 17 00:00:00 2001
From: "Somhairle H. Marisol" <muqiu-han@outlook.com>
Date: Tue, 29 Sep 2026 09:18:45 +0800
Subject: p68: 512×384 整图离线渲染截图证据
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- MapSnapshot：MapGen.Result 纯 CPU 渲染为整图 PNG（每瓦片 8px，自包含
  IHDR/IDAT/IEND + CRC32 + ZLibStream，无外部图像依赖）；调色板覆盖
  河流/主路/农田/民居屋顶/小径/桥/树丛
- Program.fs：LV_P68_MAPSHOT=1 钩子用 paramsForSize 512 384 seed=4242 生成并
  离线渲染整图后退出（headless，不需图形设备）
- P68MapSnapshotTests（3 例，红先）：尺寸/PNG 签名、要素像素存在、两次渲染逐字节一致
- scripts/analyze-p68.py：尺寸/调色板像素/无黑白大块/missing_glyph_slots=0/确定性
- Desktop 336/336、Kernel 119/119；digest 953775FA…7F6C ×3 PASS；未动 Kernel/Sim
---
 docs/evidence/p68-analysis.txt | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 docs/evidence/p68-analysis.txt

(limited to 'docs/evidence/p68-analysis.txt')

diff --git a/docs/evidence/p68-analysis.txt b/docs/evidence/p68-analysis.txt
new file mode 100644
index 0000000..4e0a3a6
--- /dev/null
+++ b/docs/evidence/p68-analysis.txt
@@ -0,0 +1,18 @@
+P68（512×384 整图渲染截图证据）分析 — headless 离线渲染（无图形设备）
+钩子：LV_P68_MAPSHOT=1（MapGen.paramsForSize 512 384 seed=4242 → MapSnapshot 整图 PNG）
+
+log: p68-map width=512 height=384 scale=8 png=4096x3072 bytes=172204
+
+log: p68-tiles grass=164907 water=6120 stone=1109 peat=0 paddy=11595 vegetable=12877
+log: p68-features rivers=4 bridges=48 paths=1109 buildings=45 farmhouses=21 groves=852 road_columns=512
+
+log: p68-render deterministic=true sha256=DD23CC2DE96955DCDC58A261F14DB6A4BF5E012C6F1E3C047A6E868AAFDC0FBF
+
+p68-map.png  4096x3072
+palette pixel counts: grass=10480064 water=388608 stone=0 peat=0 paddy=742080 vegetable=824128 path=34112 road=32768 bridge=3072 roof=19328 door=4224 grove=54528
+water pixel ratio (vs tile count) = 0.992
+max_black_block=0 max_white_block=0
+
+missing_glyph_slots=0（纯地图整图，无 UI 文案帧）
+
+verdict: PASS
-- 
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