[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_152":153,"_154":155},"routes/_app.x.$handle.$name",{"_95":94,"_32":44,"_103":85,"_27":52,"_13":14,"_104":-5,"_11":105,"_106":107,"_108":109,"_110":111,"_112":113,"_20":-5,"_114":-5,"_115":-5,"_116":25,"_117":118,"_119":57,"_120":-5,"_121":-5,"_122":123},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_42":43,"_32":44,"_37":45,"_46":-5,"_47":25,"_48":49,"_50":49,"_51":52,"_53":-5,"_18":54,"_55":31,"_56":57,"_58":-5,"_59":-5,"_60":61,"_62":63,"_64":-5,"_65":-5,"_66":-5,"_67":-5,"_68":69,"_70":69,"_71":72,"_73":72,"_74":72,"_75":69,"_76":69,"_77":78,"_79":80,"_81":82,"_83":25},"version",14,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":34,"_35":36,"_37":38,"_39":14,"_40":41,"_24":25},"previous",{"_30":31,"_32":28,"_33":34,"_35":36},"deleted",false,"deletedHere","path","main.ts","latestPath","fileId","1969b418-8bff-11f1-9a0a-1607ee4eb77e","name","fileType","http","content","import { Hono } from \"npm:hono\";\nimport { cors } from \"npm:hono/cors\";\nimport fs from \"node:fs\";\nimport { Zip, ZipPassThrough } from \"npm:fflate\";\n\n// ---------------------------------------------------------\n// 1. HTML Frontend (Served at root \"/\")\n// ---------------------------------------------------------\nconst HTML_FRONTEND = `\n\n\n\n \n \n Wasm-Vips DeepZoom Tiler\n \n\n\n

Pyramid Tiler

Generate DeepZoom (.dzi) archives entirely in-memory.

\n \n \n

\n\n \n\n\n`;\n\n// ---------------------------------------------------------\n// 2. Wasm-Vips Environment Workaround\n// ---------------------------------------------------------\nconst virtualFS = {\n \"/src/build/target/lib/vips-modules-8.18\": { isDir: true, items: [] },\n};\n\nconst patchFs = (method, mockLogic) => {\n const original = fs[method];\n fs[method] = (path, ...args) => {\n const pathStr = path.toString().replace(/\\\\/g, \"/\");\n const vNodeKey = Object.keys(virtualFS).find((k) => pathStr.includes(k));\n return vNodeKey\n ? mockLogic(virtualFS[vNodeKey], pathStr)\n : original(path, ...args);\n };\n};\n\npatchFs(\"lstatSync\", (node) => ({\n isFile: () => !node.isDir,\n isDirectory: () => node.isDir,\n size: 0,\n isBlockDevice: () => false,\n isCharacterDevice: () => false,\n isSymbolicLink: () => false,\n isFIFO: () => false,\n isSocket: () => false,\n mtime: new Date(),\n atime: new Date(),\n ctime: new Date(),\n}));\npatchFs(\"readdirSync\", (node) => node.items || []);\npatchFs(\"readFileSync\", (node, pathStr) => {\n if (node.isDir) {\n throw new Error(\n `EISDIR: illegal operation on a directory, read '${pathStr}'`,\n );\n }\n return Buffer.from(node.content || []);\n});\n\n// ---------------------------------------------------------\n// 3. Initialize VIPS and Hono\n// ---------------------------------------------------------\nconsole.log(\"Loading wasm-vips...\");\nconst { default: VipsInit } = await import(\"npm:wasm-vips\");\nconst vips = await VipsInit();\n\n// CRITICAL FIX: Prevent WebWorker thread pool spawning which crashes Edge runtimes\nvips.concurrency_set(1);\nconsole.log(\"wasm-vips ready (Single-threaded mode).\");\n\nconst app = new Hono();\napp.use(\"*\", cors());\n\n// ---------------------------------------------------------\n// 4. Routes\n// ---------------------------------------------------------\n\napp.get(\"/\", (c) => c.html(HTML_FRONTEND));\n\napp.post(\"/api/tile\", async (c) => {\n const body = await c.req.parseBody();\n const file = body[\"image\"];\n if (!file || typeof file === \"string\") {\n return c.text(\"Missing image file\", 400);\n }\n\n const tileSize = parseInt(body[\"tileSize\"] || \"256\", 10);\n const overlap = parseInt(body[\"overlap\"] || \"0\", 10);\n const format = body[\"format\"] || \".jpg\";\n\n let image;\n try {\n const arrayBuffer = await file.arrayBuffer();\n image = vips.Image.newFromBuffer(arrayBuffer);\n\n const width = image.width;\n const height = image.height;\n\n const maxDim = Math.max(width, height);\n const N = Math.ceil(Math.log2(maxDim));\n\n const readableStream = new ReadableStream({\n async start(controller) {\n let currentImg = image;\n try {\n const zip = new Zip((err, dat, final) => {\n if (err) {\n controller.error(err);\n } else {\n if (dat.length > 0) controller.enqueue(dat);\n if (final) controller.close();\n }\n });\n\n // Write standard metadata DZI file\n const formatName = format.substring(1);\n const dzi =\n ``;\n\n const dziFile = new ZipPassThrough(\"image.dzi\");\n zip.add(dziFile);\n dziFile.push(new TextEncoder().encode(dzi), true);\n\n for (let i = N; i >= 0; i--) {\n const levelW = currentImg.width;\n const levelH = currentImg.height;\n const numCols = Math.ceil(levelW / tileSize);\n const numRows = Math.ceil(levelH / tileSize);\n\n for (let col = 0; col < numCols; col++) {\n for (let row = 0; row < numRows; row++) {\n // CRITICAL FIX: Respect network backpressure so we don't OOM buffer the ZIP\n while (\n controller.desiredSize != null && controller.desiredSize <= 0\n ) {\n await new Promise((r) => setTimeout(r, 10));\n }\n\n let x = col * tileSize;\n let y = row * tileSize;\n if (x !== 0) x -= overlap;\n if (y !== 0) y -= overlap;\n\n let tw = tileSize + (col === 0 ? 0 : overlap) + overlap;\n let th = tileSize + (row === 0 ? 0 : overlap) + overlap;\n\n tw = Math.max(1, Math.min(tw, levelW - x));\n th = Math.max(1, Math.min(th, levelH - y));\n\n // Extract tile and stream\n const tileImg = currentImg.extract_area(x, y, tw, th);\n const outBuffer = tileImg.writeToBuffer(format);\n tileImg.delete(); // Delete pointer immediately\n\n const tileFile = new ZipPassThrough(\n `image_files/${i}/${col}_${row}${format}`,\n );\n zip.add(tileFile);\n tileFile.push(outBuffer, true);\n\n // CRITICAL FIX: Yield to the edge environment's event loop\n await new Promise((r) => setTimeout(r, 0));\n }\n }\n\n // Downsample for the next layer\n if (i > 0) {\n const nextW = Math.max(1, Math.ceil(levelW / 2));\n const nextH = Math.max(1, Math.ceil(levelH / 2));\n\n // Only resize if the dimensions are actually shrinking\n if (nextW < levelW || nextH < levelH) {\n const nextImg = currentImg.resize(nextW / levelW, {\n vscale: nextH / levelH,\n });\n if (currentImg !== image) currentImg.delete();\n currentImg = nextImg;\n }\n }\n }\n\n zip.end();\n } catch (err) {\n controller.error(err);\n } finally {\n if (currentImg && currentImg !== image) currentImg.delete();\n if (image) image.delete();\n }\n },\n });\n\n c.header(\"Content-Type\", \"application/zip\");\n c.header(\"Content-Disposition\", `attachment; filename=\"pyramid.zip\"`);\n return c.body(readableStream);\n } catch (error) {\n if (image) image.delete();\n console.error(\"Pyramid generation error:\", error);\n return c.text(`Error generating pyramid: ${error.message}`, 500);\n }\n});\n\nexport default app.fetch;","createdAt",["D",1785407844205],"branchVersion","branchId","28f9c443-52fa-420c-9192-2ca2568a254a","id","4d6b650c-a5a6-41a8-9421-e5dedf000bb7","test-vips",["D",1785406318422],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","","imageUrl","8d6857d3-cf1c-4e98-a094-0e379c10badf","pinnedFileId","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","4f4797d6-1767-45ca-8dc5-5113174ca1c1","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_95":94,"_102":98},"org",{"_95":94,"_96":-5,"_97":98,"_18":54,"_99":100,"_101":25},"branch",{"_13":84,"_32":85,"_42":41,"_86":43,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":44,"_93":94},"isOwned",17,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","g","handle","displayName","avatar","https://img.clerk.com/eyJ0eXBlIjoicHJveHkiLCJzcmMiOiJodHRwczovL2ltYWdlcy5jbGVyay5kZXYvdXBsb2FkZWQvaW1nXzJqRlBqSjdFTUlTVmVORmpObmFqZmJLVWh5VCJ9","tier","free","canRestrictVals","profileImageUrl","branchName","adoptOrgId",{"_42":43,"_32":44,"_37":148,"_46":-5,"_47":25,"_48":49,"_50":49,"_51":52,"_53":-5,"_18":54,"_55":31,"_56":57,"_58":-5,"_59":-5,"_60":61,"_62":63,"_64":-5,"_65":-5,"_66":-5,"_67":-5,"_68":69,"_70":69,"_71":72,"_73":72,"_74":72,"_75":69,"_76":69,"_77":149,"_79":150,"_81":151,"_83":25},"tree",[143],"files",[143],"counts",{"_132":61,"_133":134,"_135":61,"_136":137,"_138":139},"contents",[124],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_42":125,"_32":28,"_30":31,"_126":-5,"_40":41,"_39":14,"_127":25,"_37":128,"_13":129,"_33":34,"_35":36,"_24":25,"_130":-5,"_27":131},"7e6732e4-b8d3-48af-88dd-7cbf834ae875","parentId","latest",["D",1785407844205],13,"label",[28],"pulls","branches",1,"forks","envVars",{"_140":134,"_142":61},"connections",{"_140":61,"_141":61},"count","unfilledCount","emptyCount",{"_42":125,"_32":28,"_30":31,"_126":-5,"_40":41,"_39":14,"_127":25,"_37":144,"_13":129,"_33":34,"_35":36,"_24":25,"_130":-5,"_145":146,"_27":147},["D",1785407844205],"children",[],[28],["D",1785406318422],{"_95":94,"_102":98},{"_95":94,"_96":-5,"_97":98,"_18":54,"_99":100,"_101":25},{"_13":84,"_32":85,"_42":41,"_86":43,"_87":-5,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":44,"_93":94},"ctx",{"_77":-5,"_121":185,"_186":187,"_188":189,"_190":25,"_191":25,"_192":25,"_193":57,"_194":-5,"_195":-7,"_196":-7,"_197":61,"_198":25,"_199":25,"_200":-5,"_201":25,"_202":25,"_203":25,"_204":-5},"ENV",{"_156":157,"_158":159,"_160":85,"_161":162,"_163":164,"_165":166,"_167":168,"_169":170,"_171":172,"_173":174,"_175":176,"_177":178,"_179":180,"_181":182,"_183":184},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","fdb67791413f4386b4dbf18f354029a617f6160f","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v14