326 lines
12 KiB
JavaScript
326 lines
12 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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const zlib = require('zlib');
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const utils = require('./../js/spine-utils.js');
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const render = require('./../js/spine-render.js');
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/** 简易日志（写入插件目录 thumbnails.log，便于诊断 Eagle 中的间歇失败） */
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function log(msg) {
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try {
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const logPath = path.join(__dirname, '..', 'thumbnails.log');
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fs.appendFileSync(logPath, '[' + new Date().toISOString() + '] ' + msg + '\n');
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} catch (e) { /* ignore */ }
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}
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const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
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/** 插件代码版本：每次改动递增，用于确认 Eagle 是否加载到最新代码 */
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const VERSION = 'v6';
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/** 返回资源当前的尺寸/修改时间签名，同时确认 atlas 引用的全部贴图均已落盘。 */
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function assetSignature(assets) {
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if (!assets || !assets.skeletonPath || !assets.atlasPath) return null;
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let atlasText = '';
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try { atlasText = fs.readFileSync(assets.atlasPath, 'utf8'); } catch (e) { return null; }
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const pages = utils.parseAtlasPages(atlasText);
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if (pages.length === 0 || pages.some((name) => !assets.texturePaths[name])) return null;
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const paths = [assets.skeletonPath, assets.atlasPath].concat(pages.map((name) => assets.texturePaths[name]));
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const stats = [];
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for (const file of paths) {
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try {
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const stat = fs.statSync(file);
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if (!stat.isFile() || stat.size === 0) return null;
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stats.push(file + ':' + stat.size + ':' + Math.round(stat.mtimeMs));
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} catch (e) {
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return null;
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}
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}
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return stats.join('|');
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}
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/**
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* Eagle 拖入一组文件时会并发触发 atlas/json/skel 的缩略图回调，而文件内容和
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* folders 元数据仍可能继续写入。等同批资源连续三次保持不变后再渲染，避免把
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* 半截 atlas 或旧库中的同名骨骼渲染成占位图。
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*/
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async function discoverWithRetry(src, retries = 48, delay = 250) {
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let assets = null;
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let previousSignature = null;
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let stableCount = 0;
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for (let i = 0; i < retries; i++) {
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assets = utils.discoverAssets(src, { strictStem: true, preferCompatibleJson: true });
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const signature = assetSignature(assets);
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if (signature && signature === previousSignature) stableCount += 1;
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else stableCount = signature ? 1 : 0;
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previousSignature = signature;
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if (stableCount >= 3) return assets;
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await sleep(delay);
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}
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return assets;
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}
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/**
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* Eagle 格式扩展缩略图处理函数。
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* 参数：{ src, dest, item }
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* - src : 原始文件路径（skel/skel.bytes/json/atlas/atlas.txt）
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* - dest : 需要生成的缩略图 PNG 路径
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* - item : 当前 item 对象（可更新宽高）
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*/
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module.exports = async ({ src, dest, item }) => {
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try {
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// 记录 Eagle 传入的关键信息，便于诊断 src/item 的实际形态
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log('HIT ' + VERSION + ' src=' + src + ' (isTexture=' + utils.isTextureFile(src) + ')');
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try {
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log(' item keys=' + Object.keys(item || {}).join(',') + ' | name=' + (item && item.name) + ' | id=' + (item && item.id) + ' | ext=' + (item && item.ext) + ' | isDeleted=' + (item && item.isDeleted));
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} catch (e) { /* ignore */ }
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// —— 守护：若 src 文件在库中不存在（可能是回收站 isDeleted 残留 / 临时 id），
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// 且 item 标记为已删除，则跳过，避免生成破碎/占位缩略图，交由 Eagle 自身处理。
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if (item && item.isDeleted) {
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log(' skip: item.isDeleted=true');
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return resolve(item);
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}
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// —— 防御：若 src 是图片（png/jpg/jpeg/webp），不生成占位图，
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// 而是把原始图片复制/转换为缩略图，交由系统展示真实内容。
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const srcExt = utils.extOf(path.basename(src));
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if (utils.isTextureFile(src) || srcExt === '.png' || srcExt === '.jpg' || srcExt === '.jpeg' || srcExt === '.webp') {
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await copyImageAsThumb(src, dest);
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try { const s = imageSizeOf(dest); item.width = s.width || item.width; item.height = s.height || item.height; } catch (e) {}
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return resolve(item);
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}
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let assets = await discoverWithRetry(src);
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// 找不到配套 Spine 资源
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if (!assets.skeletonPath || !assets.atlasPath) {
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log('未找到配套资源: ' + src + ' (skeleton=' + !!assets.skeletonPath + ', atlas=' + !!assets.atlasPath + ')');
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if (assets.atlasPath && await writeAtlasFallback(assets, dest)) {
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item.width = 400; item.height = 400;
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return resolve(item);
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}
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await writePlaceholder(dest);
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item.width = 400; item.height = 400;
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return resolve(item);
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}
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let version = utils.detectVersion(assets.skeletonPath);
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let runtimeDir = utils.chooseRuntimeDir(version, assets.isBinary);
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// 3.6/3.7 二进制没有对应解析器。若有同批 JSON，资源发现阶段已自动切换；
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// 走到这里说明没有 JSON，直接显示 atlas 实际贴图，避免无意义地重复解析。
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if (assets.isBinary && version && parseFloat(version) < 3.8) {
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if (await writeAtlasFallback(assets, dest)) {
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log('旧版二进制无 JSON，已使用 atlas 贴图缩略图: ' + src);
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item.width = 400; item.height = 400;
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return resolve(item);
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}
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}
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if (!runtimeDir) {
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if (await writeAtlasFallback(assets, dest)) {
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item.width = 400; item.height = 400;
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return resolve(item);
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}
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await writePlaceholder(dest);
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item.width = 400; item.height = 400;
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return resolve(item);
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}
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// 渲染首帧到 PNG。若导入过程恰好仍在写大文件，重新发现稳定资源再试，
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// 每次都会重新匹配同批 atlas/json/skel，而不是重复读取原来的错误组合。
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let png = null;
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let lastRenderError = null;
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for (let attempt = 0; attempt < 3; attempt++) {
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try {
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png = await render.renderThumbnail({
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skeletonPath: assets.skeletonPath,
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atlasPath: assets.atlasPath,
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texturePaths: assets.texturePaths,
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version,
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runtimeDir,
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size: 400,
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});
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break;
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} catch (e) {
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lastRenderError = e;
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log('renderThumbnail 第 ' + (attempt + 1) + ' 次失败: ' + (e && e.message) + '，重新等待同批资源...');
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if (attempt === 2) break;
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await sleep(500);
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assets = await discoverWithRetry(src, 16, 250);
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if (!assets.skeletonPath || !assets.atlasPath || !assetSignature(assets)) continue;
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version = utils.detectVersion(assets.skeletonPath);
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runtimeDir = utils.chooseRuntimeDir(version, assets.isBinary);
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}
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}
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if (!png) {
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if (await writeAtlasFallback(assets, dest)) {
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log('骨骼无法解析，已使用 atlas 贴图缩略图: ' + src);
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item.width = 400; item.height = 400;
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return resolve(item);
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}
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throw lastRenderError || new Error('Spine 资源尚未写入完成');
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}
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fs.writeFileSync(dest, png);
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try {
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const size = imageSizeOf(dest);
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item.width = size.width || 400;
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item.height = size.height || 400;
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} catch (e) { /* ignore */ }
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return Promise.resolve(item);
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} catch (err) {
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// 兜底：总是生成一张有效 PNG，绝不 reject，避免 Eagle 显示默认图标
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log('缩略图处理异常: ' + (err && err.message) + '\n' + ((err && err.stack) || ''));
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try {
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await writePlaceholder(dest);
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item.width = 400;
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item.height = 400;
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return resolve(item);
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} catch (e2) {
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// 最后兜底：写入一张最小 1x1 PNG
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try { fs.writeFileSync(dest, Buffer.from('iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNk+M8AAAMBAQDJ/pLvAAAAAElFTkSuQmCC', 'base64')); } catch (e3) {}
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item.width = 400; item.height = 400;
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return resolve(item);
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}
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}
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};
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function resolve(item) {
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return item;
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}
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/** 将任意图片作为缩略图复制/转换为 PNG（PNG 直接拷贝，JPG/WebP 用 @napi-rs/canvas 转换） */
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async function copyImageAsThumb(src, dest) {
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const ext = path.extname(src).toLowerCase();
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if (ext === '.png') {
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fs.copyFileSync(src, dest);
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return;
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}
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if (render.canvasLib) {
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try {
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const img = await render.canvasLib.loadImage(src);
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const w = img.width, h = img.height;
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const canvas = render.canvasLib.createCanvas(w, h);
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const ctx = canvas.getContext('2d');
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ctx.drawImage(img, 0, 0, w, h);
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fs.writeFileSync(dest, canvas.toBuffer('image/png'));
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return;
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} catch (e) { /* fall through */ }
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}
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fs.copyFileSync(src, dest);
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}
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/** 骨骼二进制无法解析时，用真实 atlas 贴图生成可辨认的回退缩略图。 */
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async function writeAtlasFallback(assets, dest) {
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if (!render.canvasLib || !assets || !assets.texturePaths) return false;
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const texturePath = Object.values(assets.texturePaths).find((file) => {
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try { return fs.statSync(file).size > 0; } catch (e) { return false; }
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});
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if (!texturePath) return false;
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try {
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const img = await render.canvasLib.loadImage(texturePath);
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const size = 400;
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const canvas = render.canvasLib.createCanvas(size, size);
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const ctx = canvas.getContext('2d');
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ctx.fillStyle = '#1e1e22';
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ctx.fillRect(0, 0, size, size);
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const scale = Math.min((size - 24) / img.width, (size - 24) / img.height);
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const w = Math.max(1, Math.round(img.width * scale));
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const h = Math.max(1, Math.round(img.height * scale));
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ctx.drawImage(img, Math.round((size - w) / 2), Math.round((size - h) / 2), w, h);
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await render.drawSpineBadge(ctx, size, size);
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fs.writeFileSync(dest, canvas.toBuffer('image/png'));
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return true;
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} catch (e) {
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log('atlas 贴图回退失败: ' + (e && e.message));
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return false;
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}
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}
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/** 读取 PNG 宽高（仅支持 PNG 头部） */
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function imageSizeOf(file) {
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const buf = fs.readFileSync(file);
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if (buf.slice(0, 8).toString('hex') === '89504e470d0a1a0a') {
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return { width: buf.readUInt32BE(16), height: buf.readUInt32BE(20) };
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}
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return { width: 0, height: 0 };
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}
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/** 生成一个纯 JS 占位 PNG（无需外部依赖），作为兜底 */
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async function writePlaceholder(dest) {
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const w = 400, h = 400;
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if (render.canvasLib) {
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try {
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const canvas = render.canvasLib.createCanvas(w, h);
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const ctx = canvas.getContext('2d');
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ctx.fillStyle = '#1e1e22';
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ctx.fillRect(0, 0, w, h);
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await render.drawSpineBadge(ctx, w, h);
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fs.writeFileSync(dest, canvas.toBuffer('image/png'));
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return;
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} catch (e) { /* fall through to pure JS encoder */ }
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}
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// 深色底
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const pixels = Buffer.alloc(w * h * 4);
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for (let y = 0; y < h; y++) {
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for (let x = 0; x < w; x++) {
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const i = (y * w + x) * 4;
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pixels[i] = 30; pixels[i + 1] = 30; pixels[i + 2] = 34; pixels[i + 3] = 255;
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}
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}
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// 简单的斜线纹理，让占位图不单调
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for (let i = 0; i < w + h; i += 8) {
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for (let k = 0; k < 3; k++) {
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const x = Math.min(w - 1, i - k);
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const y = Math.min(h - 1, k);
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const idx = (y * w + x) * 4;
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pixels[idx] = 60; pixels[idx + 1] = 62; pixels[idx + 2] = 68;
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}
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}
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fs.writeFileSync(dest, encodePng(w, h, pixels));
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}
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/** 最小 PNG 编码器（纯 JS，使用 zlib deflate） */
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function encodePng(width, height, rgba) {
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const sig = Buffer.from([137, 80, 78, 71, 13, 10, 26, 10]);
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const ihdr = Buffer.alloc(13);
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ihdr.writeUInt32BE(width, 0);
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ihdr.writeUInt32BE(height, 4);
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ihdr[8] = 8; // bit depth
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ihdr[9] = 6; // color type RGBA
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ihdr[10] = 0; ihdr[11] = 0; ihdr[12] = 0;
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const ihdrChunk = chunk('IHDR', ihdr);
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const raw = Buffer.alloc((width * 4 + 1) * height);
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for (let y = 0; y < height; y++) {
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raw[y * (width * 4 + 1)] = 0; // filter type 0
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rgba.copy(raw, y * (width * 4 + 1) + 1, y * width * 4, (y + 1) * width * 4);
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}
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const idat = zlib.deflateSync(raw);
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const idatChunk = chunk('IDAT', idat);
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const iend = chunk('IEND', Buffer.alloc(0));
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return Buffer.concat([sig, ihdrChunk, idatChunk, iend]);
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}
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function chunk(type, data) {
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const len = Buffer.alloc(4);
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len.writeUInt32BE(data.length, 0);
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const typeBuf = Buffer.from(type, 'ascii');
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const crcBuf = Buffer.alloc(4);
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crcBuf.writeUInt32BE(crc32(Buffer.concat([typeBuf, data])), 0);
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return Buffer.concat([len, typeBuf, data, crcBuf]);
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}
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function crc32(buf) {
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let c, crc = 0xFFFFFFFF;
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for (let i = 0; i < buf.length; i++) {
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c = (crc ^ buf[i]) & 0xFF;
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for (let k = 0; k < 8; k++) c = c & 1 ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1);
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crc = (crc >>> 8) ^ c;
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}
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return (crc ^ 0xFFFFFFFF) >>> 0;
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}
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