From f7895ae3e69cefebf111cc64d209f5343905c776 Mon Sep 17 00:00:00 2001
From: beierweiwei <364704059@qq.com>
Date: Wed, 11 Nov 2026 10:17:56 +0800
Subject: [PATCH] =?UTF-8?q?Update=20plugin=20=E5=A4=A7=E5=8F=A4=E6=88=AA?=
 =?UTF-8?q?=E5=9B=BE=20v1.2.2?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- feat: restore OCR translation support
- feat: add translation provider language profiles
- feat: improve OCR window layout and editor sizing
- feat: improve OCR plugin flows and window handling
- fix: repair editor window close flow and add preview collapse
- feat: add provider setup guide to settings panel
- feat: add first-use setup command and auto-open config panel
- fix: improve OCR editor workflows
- feat: rename plugin and update logo
- chore: prepare plugin for ZTools submission
- docs: add plugin submission screenshots
- feat: add editor download & zoom/pan, English commands, user README
- test: add SettingsStore cross-machine sync coverage
- chore: bump plugin version to 1.1.0 and update changelog
- chore: publish plugin from source root and ship user README
- feat: 重写截图为沉浸式标注器，主题色收敛（v1.2.0）
- chore: 移除无引用的旧界面截图，README 改引用当前标注界面
- fix: 截图导出按视口坐标裁剪，修复高分屏选区内容错位
- chore: bump plugin version to 1.2.1 and update changelog
- chore: 沉淀 ztools publish 本机网络故障排查与代理注入脚本
- fix: HDR 截图全白时回退系统截图
- chore: 排除插件包内发布辅助文件
- docs: keep official release guide in plugin package
- chore: preserve official release guide bytes
---
 plugins/dagu-ocr/CHANGELOG.md                 |  6 +++++
 plugins/dagu-ocr/plugin.json                  |  2 +-
 .../dagu-ocr/src/capture/desktop-capture.js   | 26 +++++++++++++++++++
 3 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/plugins/dagu-ocr/CHANGELOG.md b/plugins/dagu-ocr/CHANGELOG.md
index c80042730..a61fb84e2 100644
--- a/plugins/dagu-ocr/CHANGELOG.md
+++ b/plugins/dagu-ocr/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 1.2.2 - 2026-11-11
+
+### 修复
+
+- 修复 Windows HDR 显示器下桌面捕获帧可能全白的问题：检测到整帧纯白时自动回退 ZTools 系统截图，再进入同一套标注界面，避免把过曝冻帧当成正常画面。
+
 ## 1.2.1 - 2026-10-30
 
 ### 修复
diff --git a/plugins/dagu-ocr/plugin.json b/plugins/dagu-ocr/plugin.json
index 994afda48..623e3b9b9 100644
--- a/plugins/dagu-ocr/plugin.json
+++ b/plugins/dagu-ocr/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "dagu-ocr",
   "title": "大古截图",
-  "version": "1.2.1",
+  "version": "1.2.2",
   "description": "截图、OCR 文字识别与图片翻译，从图片中提取并翻译文字",
   "author": "beierweiwei",
   "logo": "icon.png",
diff --git a/plugins/dagu-ocr/src/capture/desktop-capture.js b/plugins/dagu-ocr/src/capture/desktop-capture.js
index e1acde72b..9b7b335c5 100644
--- a/plugins/dagu-ocr/src/capture/desktop-capture.js
+++ b/plugins/dagu-ocr/src/capture/desktop-capture.js
@@ -84,6 +84,29 @@ export function pickSourceForDisplay(sources, display) {
   return list.find((source) => /^screen/i.test(String(source.id || ''))) || list[0];
 }
 
+async function isSolidWhiteFrame(dataUrl, win = globalThis.window) {
+  if (!dataUrl.startsWith('data:image/') || !win?.Image || !win?.document?.createElement) return false;
+  const image = new win.Image();
+  const loaded = new Promise((resolve, reject) => {
+    image.onload = resolve;
+    image.onerror = () => reject(new Error('截图帧解码失败'));
+  });
+  image.src = dataUrl;
+  await loaded;
+
+  const canvas = win.document.createElement('canvas');
+  canvas.width = 16;
+  canvas.height = 16;
+  const context = canvas.getContext('2d', { willReadFrequently: true });
+  if (!context) return false;
+  context.drawImage(image, 0, 0, canvas.width, canvas.height);
+  const pixels = context.getImageData(0, 0, canvas.width, canvas.height).data;
+  for (let index = 0; index < pixels.length; index += 4) {
+    if (pixels[index] !== 255 || pixels[index + 1] !== 255 || pixels[index + 2] !== 255) return false;
+  }
+  return true;
+}
+
 // 返回原始分辨率截图（image 像素与显示器物理像素一致）。
 export async function captureDisplay(win, display) {
   const host = hostApi(win);
@@ -96,6 +119,9 @@ export async function captureDisplay(win, display) {
   const thumbnail = source?.thumbnail;
   const dataUrl = typeof thumbnail?.toDataURL === 'function' ? thumbnail.toDataURL() : '';
   if (!dataUrl) throw new Error('未获取到屏幕截图');
+  if (await isSolidWhiteFrame(dataUrl, win)) {
+    throw new Error('HDR 环境截图输出全白，已回退系统截图');
+  }
   const size = typeof thumbnail?.getSize === 'function' ? thumbnail.getSize() : requested;
   return {
     dataUrl,