[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_153":154,"_155":156},"routes/_app.x.$handle.$name",{"_96":95,"_32":45,"_104":86,"_27":53,"_13":14,"_105":-5,"_11":106,"_107":108,"_109":110,"_111":112,"_113":114,"_20":-5,"_115":-5,"_116":-5,"_117":25,"_118":119,"_120":58,"_121":-5,"_122":-5,"_123":124},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_43":44,"_32":45,"_38":46,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":31,"_57":58,"_59":-5,"_60":-5,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":-5,"_68":-5,"_69":70,"_71":70,"_72":73,"_74":73,"_75":73,"_76":70,"_77":70,"_78":79,"_80":81,"_82":83,"_84":25},"version",12,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":34,"_35":37,"_38":39,"_40":14,"_41":42,"_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\";\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 on the fly.

\n \n \n

Pyramid Tiler

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

\n \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();\nconsole.log(\"wasm-vips ready.\");\n\nconst app = new Hono();\napp.use(\"*\", cors());\n\n// ---------------------------------------------------------\n// 4. Routes\n// ---------------------------------------------------------\n\napp.get(\"/\", (c) => c.html(HTML_FRONTEND));\n\n// Streaming DeepZoom Pyramid API - Fully In-Memory Manual Implementation\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 // Calculate total DeepZoom levels (Level N is the original size, Level 0 is 1x1)\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 // Setup streaming zip pipeline\n const zip = new fflate.Zip((err, dat, final) => {\n if (err) 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`;\n const dziFile = new (fflate.ZipPassThrough || fflate.ZipDeflate)(\n \"image.dzi\",\n { level: 0 },\n );\n zip.add(dziFile);\n dziFile.push(new TextEncoder().encode(dzi), true);\n\n // We iterate backwards from largest scale (original size) down to smallest (1x1)\n // Downscaling recursively from the previous level is exponentially faster than re-scaling from the original.\n for (let i = N; i >= 0; i--) {\n const levelW = currentImg.width;\n const levelH = currentImg.height;\n\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 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 // Clamp tile bounds to the current scale boundaries\n tw = Math.min(tw, levelW - x);\n th = Math.min(th, levelH - y);\n\n // Extract tile and push it immediately into the ZIP stream\n const tileImg = currentImg.extract_area(x, y, tw, th);\n const outBuffer = tileImg.writeToBuffer(format);\n tileImg.delete(); // Free C++ pointer immediately\n\n const tileFile =\n new (fflate.ZipPassThrough || fflate.ZipDeflate)(\n `image_files/${i}/${col}_${row}${format}`,\n { level: 0 },\n );\n zip.add(tileFile);\n tileFile.push(outBuffer, true);\n }\n // Yield to event loop to drain the network pipe and avoid Out Of Memory blocks\n await new Promise((r) => setTimeout(r, 0));\n }\n\n // Downsample the image exactly by half for the next lower-resolution level\n if (i > 0) {\n const nextW = Math.ceil(levelW / 2);\n const nextH = Math.ceil(levelH / 2);\n const nextImg = currentImg.resize(nextW / levelW, {\n vscale: nextH / levelH,\n });\n\n if (currentImg !== image) currentImg.delete();\n currentImg = nextImg;\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(); // Final cleanup\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",1785407638252],"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",{"_96":95,"_103":99},"org",{"_96":95,"_97":-5,"_98":99,"_18":55,"_100":101,"_102":25},"branch",{"_13":85,"_32":86,"_43":42,"_87":44,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":-5,"_93":45,"_94":95},"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",{"_43":44,"_32":45,"_38":149,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":31,"_57":58,"_59":-5,"_60":-5,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":-5,"_68":-5,"_69":70,"_71":70,"_72":73,"_74":73,"_75":73,"_76":70,"_77":70,"_78":150,"_80":151,"_82":152,"_84":25},"tree",[144],"files",[144],"counts",{"_133":62,"_134":135,"_136":62,"_137":138,"_139":140},"contents",[125],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_43":126,"_32":28,"_30":31,"_127":-5,"_41":42,"_40":14,"_128":25,"_38":129,"_13":130,"_33":34,"_35":37,"_24":25,"_131":-5,"_27":132},"fa6a8cff-d9e2-4ff8-99b9-457899bca0a4","parentId","latest",["D",1785407638252],11,"label",[28],"pulls","branches",1,"forks","envVars",{"_141":135,"_143":62},"connections",{"_141":62,"_142":62},"count","unfilledCount","emptyCount",{"_43":126,"_32":28,"_30":31,"_127":-5,"_41":42,"_40":14,"_128":25,"_38":145,"_13":130,"_33":34,"_35":37,"_24":25,"_131":-5,"_146":147,"_27":148},["D",1785407638252],"children",[],[28],["D",1785406318422],{"_96":95,"_103":99},{"_96":95,"_97":-5,"_98":99,"_18":55,"_100":101,"_102":25},{"_13":85,"_32":86,"_43":42,"_87":44,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":-5,"_93":45,"_94":95},"ctx",{"_78":-5,"_122":186,"_187":188,"_189":190,"_191":25,"_192":25,"_193":25,"_194":58,"_195":-5,"_196":-7,"_197":-7,"_198":62,"_199":25,"_200":25,"_201":-5,"_202":25,"_203":25,"_204":25,"_205":-5},"ENV",{"_157":158,"_159":160,"_161":86,"_162":163,"_164":165,"_166":167,"_168":169,"_170":171,"_172":173,"_174":175,"_176":177,"_178":179,"_180":181,"_182":183,"_184":185},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","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 · v12