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@plasius/gpu-worker
Advanced tools
@plasius/gpu-worker - npm Package Compare versions
+22
-1
@@ -23,2 +23,22 @@ # Changelog | ||
| ## [0.1.11] - 2026-03-15 | ||
| - **Added** | ||
| - ADR, TDR, and test-first planning coverage for snapshot-driven | ||
| scene-preparation DAG manifests in the ray-tracing-first world pipeline. | ||
| - Added `createScenePreparationManifest(...)` plus scene-preparation | ||
| representation-band and stage-family exports for snapshot-driven chunk DAG | ||
| planning. | ||
| - Added contract tests covering stable snapshot roots, multi-chunk priority | ||
| lanes, local joins, and render-preparation safety guards. | ||
| - **Changed** | ||
| - TDR-0004 now reflects the implemented scene-preparation manifest helper. | ||
| - **Fixed** | ||
| - (placeholder) | ||
| - **Security** | ||
| - (placeholder) | ||
| ## [0.1.10] - 2026-03-14 | ||
@@ -214,3 +234,3 @@ | ||
| [Unreleased]: https://github.com/Plasius-LTD/gpu-worker/compare/v0.1.10...HEAD | ||
| [Unreleased]: https://github.com/Plasius-LTD/gpu-worker/compare/v0.1.11...HEAD | ||
| [0.1.0-beta.1]: https://github.com/Plasius-LTD/gpu-worker/releases/tag/v0.1.0-beta.1 | ||
@@ -238,1 +258,2 @@ [0.1.0]: https://github.com/Plasius-LTD/gpu-worker/releases/tag/v0.1.0 | ||
| [0.1.10]: https://github.com/Plasius-LTD/gpu-worker/releases/tag/v0.1.10 | ||
| [0.1.11]: https://github.com/Plasius-LTD/gpu-worker/releases/tag/v0.1.11 |
+314
-0
@@ -33,2 +33,3 @@ var __create = Object.create; | ||
| assembleWorkerWgsl: () => assembleWorkerWgsl, | ||
| createScenePreparationManifest: () => createScenePreparationManifest, | ||
| createWorkerLoop: () => createWorkerLoop, | ||
@@ -38,2 +39,4 @@ loadJobWgsl: () => loadJobWgsl, | ||
| loadWorkerWgsl: () => loadWorkerWgsl, | ||
| scenePreparationRepresentationBands: () => scenePreparationRepresentationBands, | ||
| scenePreparationStageFamilies: () => scenePreparationStageFamilies, | ||
| workerWgslUrl: () => workerWgslUrl | ||
@@ -698,5 +701,314 @@ }); | ||
| } | ||
| var scenePreparationRepresentationBands = Object.freeze([ | ||
| "near", | ||
| "mid", | ||
| "far", | ||
| "horizon" | ||
| ]); | ||
| var scenePreparationStageFamilies = Object.freeze([ | ||
| "snapshotSelection", | ||
| "transformPropagation", | ||
| "animationPose", | ||
| "proceduralAnimation", | ||
| "skinningOrDeformation", | ||
| "boundsUpdate", | ||
| "lodSelection", | ||
| "rtRepresentationSelection", | ||
| "visibility", | ||
| "lightAssignment", | ||
| "renderProxyBuild", | ||
| "rtInstancePreparation" | ||
| ]); | ||
| var scenePreparationDefaultStageDependencies = Object.freeze({ | ||
| snapshotSelection: Object.freeze([]), | ||
| transformPropagation: Object.freeze(["snapshotSelection"]), | ||
| animationPose: Object.freeze(["transformPropagation"]), | ||
| proceduralAnimation: Object.freeze(["animationPose"]), | ||
| skinningOrDeformation: Object.freeze([ | ||
| "animationPose", | ||
| "proceduralAnimation" | ||
| ]), | ||
| boundsUpdate: Object.freeze(["skinningOrDeformation"]), | ||
| lodSelection: Object.freeze(["boundsUpdate"]), | ||
| rtRepresentationSelection: Object.freeze(["lodSelection"]), | ||
| visibility: Object.freeze(["boundsUpdate", "lodSelection"]), | ||
| lightAssignment: Object.freeze(["visibility"]), | ||
| renderProxyBuild: Object.freeze(["visibility", "lodSelection"]), | ||
| rtInstancePreparation: Object.freeze([ | ||
| "visibility", | ||
| "rtRepresentationSelection" | ||
| ]) | ||
| }); | ||
| var scenePreparationBandPriorityWeights = Object.freeze({ | ||
| near: 400, | ||
| mid: 300, | ||
| far: 200, | ||
| horizon: 100 | ||
| }); | ||
| var scenePreparationImportanceWeights = Object.freeze({ | ||
| low: 0, | ||
| medium: 15, | ||
| high: 30, | ||
| critical: 60 | ||
| }); | ||
| var scenePreparationStagePriorityWeights = Object.freeze({ | ||
| snapshotSelection: 60, | ||
| transformPropagation: 54, | ||
| animationPose: 50, | ||
| proceduralAnimation: 46, | ||
| skinningOrDeformation: 42, | ||
| boundsUpdate: 38, | ||
| lodSelection: 32, | ||
| rtRepresentationSelection: 28, | ||
| visibility: 34, | ||
| lightAssignment: 24, | ||
| renderProxyBuild: 22, | ||
| rtInstancePreparation: 26 | ||
| }); | ||
| function assertScenePreparationIdentifier(name, value) { | ||
| if (typeof value !== "string" || value.trim().length === 0) { | ||
| throw new Error(`${name} must be a non-empty string.`); | ||
| } | ||
| return value.trim(); | ||
| } | ||
| function assertScenePreparationEnum(name, value, allowed) { | ||
| const normalized = assertScenePreparationIdentifier(name, value); | ||
| if (!allowed.includes(normalized)) { | ||
| throw new Error(`${name} must be one of: ${allowed.join(", ")}.`); | ||
| } | ||
| return normalized; | ||
| } | ||
| function normalizeScenePreparationStages(stages, chunkLabel) { | ||
| const requested = stages === void 0 ? scenePreparationStageFamilies : stages; | ||
| if (!Array.isArray(requested) || requested.length === 0) { | ||
| throw new Error(`${chunkLabel}.stages must be a non-empty array when provided.`); | ||
| } | ||
| const normalized = [...new Set( | ||
| requested.map( | ||
| (stage, index) => assertScenePreparationEnum( | ||
| `${chunkLabel}.stages[${index}]`, | ||
| stage, | ||
| scenePreparationStageFamilies | ||
| ) | ||
| ) | ||
| )]; | ||
| return normalized.sort( | ||
| (left, right) => scenePreparationStageFamilies.indexOf(left) - scenePreparationStageFamilies.indexOf(right) | ||
| ); | ||
| } | ||
| function collectScenePreparationDependencies(stageFamily, includedStages, seen = /* @__PURE__ */ new Set()) { | ||
| const dependencies = scenePreparationDefaultStageDependencies[stageFamily] ?? []; | ||
| for (const dependency of dependencies) { | ||
| if (includedStages.has(dependency)) { | ||
| seen.add(dependency); | ||
| continue; | ||
| } | ||
| collectScenePreparationDependencies(dependency, includedStages, seen); | ||
| } | ||
| return [...seen].sort( | ||
| (left, right) => scenePreparationStageFamilies.indexOf(left) - scenePreparationStageFamilies.indexOf(right) | ||
| ); | ||
| } | ||
| function buildScenePreparationPriority(chunk, stageFamily) { | ||
| const bandWeight = scenePreparationBandPriorityWeights[chunk.representationBand] ?? 0; | ||
| const importanceWeight = scenePreparationImportanceWeights[chunk.gameplayImportance] ?? 0; | ||
| const stageWeight = scenePreparationStagePriorityWeights[stageFamily] ?? 0; | ||
| return bandWeight + importanceWeight + stageWeight + (chunk.visible ? 20 : 0) + (chunk.playerRelevant ? 20 : 0) + (chunk.imageCritical ? 15 : 0); | ||
| } | ||
| function buildScenePreparationPriorityLanes(jobs) { | ||
| const lanes = /* @__PURE__ */ new Map(); | ||
| for (const job of jobs) { | ||
| const lane = lanes.get(job.priority) ?? { | ||
| priority: job.priority, | ||
| jobIds: [], | ||
| chunkIds: [] | ||
| }; | ||
| lane.jobIds.push(job.id); | ||
| if (!lane.chunkIds.includes(job.chunkId)) { | ||
| lane.chunkIds.push(job.chunkId); | ||
| } | ||
| lanes.set(job.priority, lane); | ||
| } | ||
| return Object.freeze( | ||
| [...lanes.values()].sort((left, right) => right.priority - left.priority).map( | ||
| (lane) => Object.freeze({ | ||
| priority: lane.priority, | ||
| jobIds: Object.freeze([...lane.jobIds]), | ||
| chunkIds: Object.freeze([...lane.chunkIds]), | ||
| jobCount: lane.jobIds.length | ||
| }) | ||
| ) | ||
| ); | ||
| } | ||
| function buildScenePreparationTopologicalOrder(jobs) { | ||
| const indegree = new Map(jobs.map((job) => [job.id, job.dependencies.length])); | ||
| const dependentsById = new Map(jobs.map((job) => [job.id, []])); | ||
| for (const job of jobs) { | ||
| for (const dependency of job.dependencies) { | ||
| dependentsById.get(dependency)?.push(job.id); | ||
| } | ||
| } | ||
| const queue = jobs.filter((job) => job.dependencies.length === 0).sort((left, right) => right.priority - left.priority).map((job) => job.id); | ||
| const jobById = new Map(jobs.map((job) => [job.id, job])); | ||
| const order = []; | ||
| while (queue.length > 0) { | ||
| const currentId = queue.shift(); | ||
| if (!currentId) { | ||
| continue; | ||
| } | ||
| order.push(currentId); | ||
| const unlocked = []; | ||
| for (const dependentId of dependentsById.get(currentId) ?? []) { | ||
| const next = (indegree.get(dependentId) ?? 0) - 1; | ||
| indegree.set(dependentId, next); | ||
| if (next === 0) { | ||
| unlocked.push(dependentId); | ||
| } | ||
| } | ||
| unlocked.sort( | ||
| (left, right) => (jobById.get(right)?.priority ?? 0) - (jobById.get(left)?.priority ?? 0) | ||
| ).forEach((jobId) => { | ||
| queue.push(jobId); | ||
| }); | ||
| } | ||
| if (order.length !== jobs.length) { | ||
| throw new Error("Scene-preparation manifest contains a cycle."); | ||
| } | ||
| return Object.freeze(order); | ||
| } | ||
| function createScenePreparationManifest(options = {}) { | ||
| const snapshotId = assertScenePreparationIdentifier( | ||
| "snapshotId", | ||
| options.snapshotId | ||
| ); | ||
| const chunkEntries = Array.isArray(options.chunks) ? options.chunks : []; | ||
| if (chunkEntries.length === 0) { | ||
| throw new Error("createScenePreparationManifest requires at least one chunk."); | ||
| } | ||
| const normalizedChunks = chunkEntries.map((chunk, index) => { | ||
| if (!chunk || typeof chunk !== "object" || Array.isArray(chunk)) { | ||
| throw new Error(`chunks[${index}] must be an object.`); | ||
| } | ||
| const chunkLabel = `chunks[${index}]`; | ||
| if (chunk.mutatesSimulation === true) { | ||
| throw new Error( | ||
| `${chunkLabel}.mutatesSimulation cannot be true for render preparation.` | ||
| ); | ||
| } | ||
| return Object.freeze({ | ||
| chunkId: assertScenePreparationIdentifier(`${chunkLabel}.chunkId`, chunk.chunkId), | ||
| representationBand: assertScenePreparationEnum( | ||
| `${chunkLabel}.representationBand`, | ||
| chunk.representationBand ?? "mid", | ||
| scenePreparationRepresentationBands | ||
| ), | ||
| gameplayImportance: assertScenePreparationEnum( | ||
| `${chunkLabel}.gameplayImportance`, | ||
| chunk.gameplayImportance ?? "medium", | ||
| Object.keys(scenePreparationImportanceWeights) | ||
| ), | ||
| visible: chunk.visible !== false, | ||
| playerRelevant: chunk.playerRelevant === true, | ||
| imageCritical: chunk.imageCritical === true, | ||
| stages: normalizeScenePreparationStages(chunk.stages, chunkLabel) | ||
| }); | ||
| }); | ||
| const chunkIds = /* @__PURE__ */ new Set(); | ||
| for (const chunk of normalizedChunks) { | ||
| if (chunkIds.has(chunk.chunkId)) { | ||
| throw new Error(`Duplicate scene-preparation chunk id detected: ${chunk.chunkId}`); | ||
| } | ||
| chunkIds.add(chunk.chunkId); | ||
| } | ||
| const jobs = []; | ||
| for (const chunk of normalizedChunks) { | ||
| const includedStages = new Set(chunk.stages); | ||
| for (const stageFamily of chunk.stages) { | ||
| const dependencies = collectScenePreparationDependencies( | ||
| stageFamily, | ||
| includedStages | ||
| ).map( | ||
| (dependency) => `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${dependency}` | ||
| ); | ||
| jobs.push( | ||
| Object.freeze({ | ||
| id: `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${stageFamily}`, | ||
| snapshotId, | ||
| chunkId: chunk.chunkId, | ||
| representationBand: chunk.representationBand, | ||
| stageFamily, | ||
| priority: buildScenePreparationPriority(chunk, stageFamily), | ||
| dependencies: Object.freeze(dependencies), | ||
| dependencyCount: dependencies.length, | ||
| root: dependencies.length === 0, | ||
| authority: "visual", | ||
| mutatesSimulation: false, | ||
| gameplayImportance: chunk.gameplayImportance, | ||
| visible: chunk.visible, | ||
| playerRelevant: chunk.playerRelevant, | ||
| imageCritical: chunk.imageCritical | ||
| }) | ||
| ); | ||
| } | ||
| } | ||
| const jobById = new Map(jobs.map((job) => [job.id, job])); | ||
| let crossChunkDependencyCount = 0; | ||
| let localJoinCount = 0; | ||
| const finalizedJobs = Object.freeze( | ||
| jobs.map((job) => { | ||
| const dependents = jobs.filter((candidate) => candidate.dependencies.includes(job.id)).map((candidate) => candidate.id); | ||
| const crossChunkDependencies = job.dependencies.filter((dependency) => { | ||
| const parent = jobById.get(dependency); | ||
| return parent && parent.chunkId !== job.chunkId; | ||
| }); | ||
| crossChunkDependencyCount += crossChunkDependencies.length; | ||
| if (job.dependencies.length > 1 && crossChunkDependencies.length === 0) { | ||
| localJoinCount += 1; | ||
| } | ||
| return Object.freeze({ | ||
| ...job, | ||
| dependents: Object.freeze(dependents), | ||
| dependentCount: dependents.length, | ||
| unresolvedDependencyCount: job.dependencies.length, | ||
| localJoin: job.dependencies.length > 1 && crossChunkDependencies.length === 0 | ||
| }); | ||
| }) | ||
| ); | ||
| const graph = Object.freeze({ | ||
| schedulerMode: "dag", | ||
| jobCount: finalizedJobs.length, | ||
| chunkCount: normalizedChunks.length, | ||
| chunkIds: Object.freeze(normalizedChunks.map((chunk) => chunk.chunkId)), | ||
| representationBands: Object.freeze( | ||
| [...new Set(normalizedChunks.map((chunk) => chunk.representationBand))] | ||
| ), | ||
| roots: Object.freeze( | ||
| finalizedJobs.filter((job) => job.root).map((job) => job.id) | ||
| ), | ||
| chunkRoots: Object.freeze( | ||
| Object.fromEntries( | ||
| normalizedChunks.map((chunk) => [ | ||
| chunk.chunkId, | ||
| finalizedJobs.filter((job) => job.chunkId === chunk.chunkId && job.root).map((job) => job.id) | ||
| ]) | ||
| ) | ||
| ), | ||
| topologicalOrder: buildScenePreparationTopologicalOrder(finalizedJobs), | ||
| priorityLanes: buildScenePreparationPriorityLanes(finalizedJobs), | ||
| localJoinCount, | ||
| crossChunkDependencyCount | ||
| }); | ||
| return Object.freeze({ | ||
| schemaVersion: 1, | ||
| owner: "scene-preparation", | ||
| schedulerMode: "dag", | ||
| snapshotId, | ||
| jobs: finalizedJobs, | ||
| graph | ||
| }); | ||
| } | ||
| // Annotate the CommonJS export names for ESM import in node: | ||
| 0 && (module.exports = { | ||
| assembleWorkerWgsl, | ||
| createScenePreparationManifest, | ||
| createWorkerLoop, | ||
@@ -706,4 +1018,6 @@ loadJobWgsl, | ||
| loadWorkerWgsl, | ||
| scenePreparationRepresentationBands, | ||
| scenePreparationStageFamilies, | ||
| workerWgslUrl | ||
| }); | ||
| //# sourceMappingURL=index.cjs.map |
@@ -1,1 +0,1 @@ | ||
| {"version":3,"sources":["../src/index.js"],"sourcesContent":["import {\n loadSchedulerWgsl as loadSchedulerWgslRaw,\n schedulerModes as workerSchedulerModes,\n} from \"@plasius/gpu-lock-free-queue\";\n\nexport const workerWgslUrl = (() => {\n if (typeof __IMPORT_META_URL__ !== \"undefined\") {\n return new URL(\"./worker.wgsl\", __IMPORT_META_URL__);\n }\n if (typeof __filename !== \"undefined\" && typeof require !== \"undefined\") {\n const { pathToFileURL } = require(\"node:url\");\n return new URL(\"./worker.wgsl\", pathToFileURL(__filename));\n }\n const base =\n typeof process !== \"undefined\" && process.cwd\n ? `file://${process.cwd()}/`\n : \"file:///\";\n return new URL(\"./worker.wgsl\", base);\n})();\n\nconst jobRegistry = [];\nlet nextJobType = 0;\n\nasync function loadWgslSource(options = {}) {\n const { wgsl, url, fetcher = globalThis.fetch, baseUrl } = options ?? {};\n if (typeof wgsl === \"string\") {\n assertNotHtmlWgsl(wgsl, \"inline WGSL\");\n return wgsl;\n }\n if (!url) {\n return null;\n }\n const resolved = url instanceof URL ? url : new URL(url, baseUrl);\n if (!fetcher) {\n if (resolved.protocol !== \"file:\") {\n throw new Error(\"No fetcher available for non-file WGSL URL.\");\n }\n const { readFile } = await import(\"fs/promises\");\n const { fileURLToPath } = await import(\"url\");\n const source = await readFile(fileURLToPath(resolved), \"utf8\");\n assertNotHtmlWgsl(source, resolved.href);\n return source;\n }\n const response = await fetcher(resolved);\n if (!response.ok) {\n const status = \"status\" in response ? response.status : \"unknown\";\n const statusText = \"statusText\" in response ? response.statusText : \"\";\n const detail = statusText ? `${status} ${statusText}` : `${status}`;\n throw new Error(`Failed to load WGSL (${detail})`);\n }\n const source = await response.text();\n assertNotHtmlWgsl(source, resolved.href);\n return source;\n}\n\nfunction stripComments(source) {\n return source\n .replace(/\\/\\*[\\s\\S]*?\\*\\//g, \"\")\n .replace(/\\/\\/.*$/gm, \"\");\n}\n\nfunction tokenize(source) {\n return source.match(/[A-Za-z_][A-Za-z0-9_]*|[{}();<>,:=]/g) ?? [];\n}\n\nfunction isIdentifier(token) {\n return /^[A-Za-z_][A-Za-z0-9_]*$/.test(token);\n}\n\nfunction readNameAfterType(tokens, startIndex) {\n let i = startIndex;\n if (tokens[i] === \"<\") {\n let depth = 1;\n i += 1;\n while (i < tokens.length && depth > 0) {\n if (tokens[i] === \"<\") {\n depth += 1;\n } else if (tokens[i] === \">\") {\n depth -= 1;\n }\n i += 1;\n }\n }\n return tokens[i];\n}\n\nfunction scanModuleNames(source) {\n const cleaned = stripComments(source);\n const tokens = tokenize(cleaned);\n const names = [];\n let depth = 0;\n for (let i = 0; i < tokens.length; i += 1) {\n const token = tokens[i];\n if (token === \"{\") {\n depth += 1;\n continue;\n }\n if (token === \"}\") {\n depth = Math.max(0, depth - 1);\n continue;\n }\n if (depth !== 0) {\n continue;\n }\n if (token === \"fn\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"fn\", name });\n }\n continue;\n }\n if (token === \"struct\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"struct\", name });\n }\n continue;\n }\n if (token === \"alias\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"alias\", name });\n }\n continue;\n }\n if (token === \"var\" || token === \"let\" || token === \"const\" || token === \"override\") {\n const name = readNameAfterType(tokens, i + 1);\n if (isIdentifier(name)) {\n names.push({ kind: token, name });\n }\n }\n }\n return names;\n}\n\nfunction buildNameIndex(modules) {\n const index = new Map();\n for (const module of modules) {\n for (const item of scanModuleNames(module.source)) {\n const bucket = index.get(item.name) ?? [];\n bucket.push({ kind: item.kind, module: module.name });\n index.set(item.name, bucket);\n }\n }\n return index;\n}\n\nfunction assertNoNameClashes(modules) {\n const index = buildNameIndex(modules);\n const clashes = [];\n for (const [name, entries] of index.entries()) {\n if (entries.length > 1) {\n clashes.push({ name, entries });\n }\n }\n if (clashes.length === 0) {\n return;\n }\n const lines = [\"WGSL debug: identifier clashes detected:\"];\n for (const clash of clashes) {\n const locations = clash.entries\n .map((entry) => `${entry.module} (${entry.kind})`)\n .join(\", \");\n lines.push(`- ${clash.name}: ${locations}`);\n }\n throw new Error(lines.join(\"\\n\"));\n}\n\nfunction assertNotHtmlWgsl(source, context) {\n const sample = source.slice(0, 200).toLowerCase();\n if (\n sample.includes(\"<!doctype\") ||\n sample.includes(\"<html\") ||\n sample.includes(\"<meta\")\n ) {\n const label = context ? ` for ${context}` : \"\";\n throw new Error(\n `Expected WGSL${label} but received HTML. Check the URL or server root.`\n );\n }\n}\n\nfunction renameProcessJob(source, name) {\n return source.replace(/\\bprocess_job\\b/g, name);\n}\n\nfunction getQueueCompatMap(source) {\n if (!/\\bJobMeta\\b/.test(source)) {\n return null;\n }\n return [{ from: /\\bJobMeta\\b/g, to: \"JobDesc\" }];\n}\n\nfunction normalizeQueueMode(mode) {\n const resolved = mode ?? \"flat\";\n if (!workerSchedulerModes.includes(resolved)) {\n throw new Error(\n `queueMode must be one of: ${workerSchedulerModes.join(\", \")}.`\n );\n }\n return resolved;\n}\n\nfunction applyCompatMap(source, map) {\n if (!map || map.length === 0) {\n return source;\n }\n let next = source;\n for (const entry of map) {\n next = next.replace(entry.from, entry.to);\n }\n return next;\n}\n\nfunction normalizeJobs(jobs) {\n const normalized = jobs.map((job, index) => {\n if (typeof job === \"string\") {\n return {\n jobType: index,\n wgsl: job,\n label: `job_${index}`,\n sourceName: `job-${index}`,\n };\n }\n if (!job || typeof job.wgsl !== \"string\") {\n throw new Error(\"Job entries must provide WGSL source strings.\");\n }\n const jobType = job.jobType ?? index;\n const label = job.label ?? `job_${jobType}`;\n return {\n jobType,\n wgsl: job.wgsl,\n label,\n sourceName: job.sourceName ?? job.label ?? `job-${jobType}`,\n };\n });\n const seen = new Set();\n for (const job of normalized) {\n if (seen.has(job.jobType)) {\n throw new Error(`Duplicate job_type detected: ${job.jobType}`);\n }\n seen.add(job.jobType);\n }\n return normalized;\n}\n\nfunction buildProcessJobDispatch(jobs) {\n const lines = [\n \"fn process_job(job_index: u32, job_type: u32, payload_words: u32) {\",\n ];\n if (jobs.length === 0) {\n lines.push(\" return;\");\n lines.push(\"}\");\n return lines.join(\"\\n\");\n }\n jobs.forEach((job, idx) => {\n const clause = idx === 0 ? \"if\" : \"else if\";\n lines.push(` ${clause} (job_type == ${job.jobType}u) {`);\n lines.push(\n ` ${job.entryName}(job_index, job_type, payload_words);`\n );\n lines.push(\" }\");\n });\n lines.push(\"}\");\n return lines.join(\"\\n\");\n}\n\nexport async function loadWorkerWgsl(options = {}) {\n const { url = workerWgslUrl, fetcher } = options ?? {};\n const source = await loadWgslSource({\n url,\n fetcher,\n baseUrl: workerWgslUrl,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"Failed to load worker WGSL source.\");\n }\n return source;\n}\n\nexport async function loadQueueWgsl(options = {}) {\n const { queueCompat = true, queueMode = \"flat\", ...rest } = options ?? {};\n const source = await loadSchedulerWgslRaw({\n mode: normalizeQueueMode(queueMode),\n ...rest,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"Failed to load queue WGSL source.\");\n }\n assertNotHtmlWgsl(source, rest?.url ? String(rest.url) : \"queue WGSL\");\n if (!queueCompat) {\n return source;\n }\n const compatMap = getQueueCompatMap(source);\n return applyCompatMap(source, compatMap);\n}\n\nfunction ensureQueueLifecycleHooks(source) {\n if (/\\bfn\\s+complete_job\\b/.test(source)) {\n return source;\n }\n return `${source}\\n\\nfn complete_job(job_index: u32) {\\n _ = job_index;\\n}`;\n}\n\nexport async function loadJobWgsl(options = {}) {\n const { wgsl, url, fetcher, label } = options ?? {};\n const source = await loadWgslSource({\n wgsl,\n url,\n fetcher,\n baseUrl: workerWgslUrl,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"loadJobWgsl requires a WGSL string or URL.\");\n }\n const jobType = nextJobType;\n nextJobType += 1;\n jobRegistry.push({\n jobType,\n wgsl: source,\n label: label ?? `job_${jobType}`,\n sourceName: label ?? `job-${jobType}`,\n });\n return jobType;\n}\n\nexport async function assembleWorkerWgsl(workerWgsl, options = {}) {\n const {\n queueWgsl,\n queueUrl,\n preludeWgsl,\n preludeUrl,\n fetcher,\n jobs,\n debug,\n queueCompat = true,\n queueMode = \"flat\",\n } = options ?? {};\n const resolvedQueueMode = normalizeQueueMode(queueMode);\n const rawQueueSource =\n queueWgsl ??\n (await loadSchedulerWgslRaw({\n mode: resolvedQueueMode,\n url: queueUrl,\n fetcher,\n }));\n const bodyRaw = workerWgsl ?? (await loadWorkerWgsl({ fetcher }));\n const compatMap = queueCompat ? getQueueCompatMap(rawQueueSource) : null;\n const queueSource = ensureQueueLifecycleHooks(\n applyCompatMap(rawQueueSource, compatMap)\n );\n const preludeRaw =\n preludeWgsl ??\n (preludeUrl\n ? await loadWgslSource({ url: preludeUrl, fetcher, baseUrl: workerWgslUrl })\n : \"\");\n if ((preludeWgsl || preludeUrl) && typeof preludeRaw !== \"string\") {\n throw new Error(\"Failed to load prelude WGSL source.\");\n }\n const preludeSource =\n typeof preludeRaw === \"string\" && preludeRaw.length > 0\n ? applyCompatMap(preludeRaw, compatMap)\n : \"\";\n const body = applyCompatMap(bodyRaw, compatMap);\n const jobList = normalizeJobs(\n typeof jobs === \"undefined\" ? jobRegistry : jobs\n );\n if (!jobList || jobList.length === 0) {\n return `${queueSource}\\n\\n${body}`;\n }\n const rewrittenJobs = jobList.map((job) => {\n const source = applyCompatMap(job.wgsl, compatMap);\n const hasProcessJob = /\\bfn\\s+process_job\\b/.test(source);\n if (!hasProcessJob) {\n throw new Error(\n `Job ${job.sourceName} is missing a process_job() entry function.`\n );\n }\n const entryName = `process_job__${job.jobType}`;\n const renamed = renameProcessJob(source, entryName);\n return { ...job, entryName, wgsl: renamed };\n });\n const dispatch = buildProcessJobDispatch(rewrittenJobs);\n const modulesForDebug = debug\n ? [\n { name: \"queue.wgsl\", source: queueSource },\n ...(preludeSource\n ? [{ name: \"jobs.prelude.wgsl\", source: preludeSource }]\n : []),\n ...rewrittenJobs.map((job) => ({\n name: job.sourceName,\n source: job.wgsl,\n })),\n { name: \"jobs.dispatch.wgsl\", source: dispatch },\n { name: \"worker.wgsl\", source: body },\n ]\n : null;\n if (modulesForDebug) {\n assertNoNameClashes(modulesForDebug);\n }\n const jobBlocks = rewrittenJobs\n .map((job) => `// Job ${job.jobType}: ${job.label}\\n${job.wgsl}`)\n .join(\"\\n\\n\");\n const preludeBlock = preludeSource ? `${preludeSource}\\n\\n` : \"\";\n return `${queueSource}\\n\\n${preludeBlock}${jobBlocks}\\n\\n${dispatch}\\n\\n${body}`;\n}\n\nfunction normalizeWorkgroups(value, label) {\n if (typeof value === \"number\") {\n return [value, 1, 1];\n }\n if (Array.isArray(value)) {\n const [x = 0, y = 1, z = 1] = value;\n return [x, y, z];\n }\n throw new Error(`Invalid workgroup count for ${label}.`);\n}\n\nfunction resolveWorkgroups(value, label) {\n if (typeof value === \"function\") {\n return normalizeWorkgroups(value(), label);\n }\n if (value == null) {\n return null;\n }\n return normalizeWorkgroups(value, label);\n}\n\nfunction normalizeTelemetryText(value, fallback) {\n if (typeof value !== \"string\") {\n return fallback;\n }\n const trimmed = value.trim();\n return trimmed ? trimmed.slice(0, 120) : fallback;\n}\n\nfunction resolveFrameId(value) {\n if (typeof value === \"function\") {\n return resolveFrameId(value());\n }\n if (typeof value !== \"string\") {\n return undefined;\n }\n const trimmed = value.trim();\n return trimmed ? trimmed.slice(0, 120) : undefined;\n}\n\nfunction toVector(workgroups) {\n return { x: workgroups[0], y: workgroups[1], z: workgroups[2] };\n}\n\nfunction resolveTelemetryWorkgroupSize(descriptor, fallback, label) {\n const size =\n descriptor?.workgroupSize == null ? fallback : descriptor.workgroupSize;\n if (size == null) {\n return undefined;\n }\n const normalized =\n typeof size === \"number\" ? normalizeWorkgroups(size, label) : resolveWorkgroups(size, label);\n if (!normalized) {\n return undefined;\n }\n return toVector(normalized);\n}\n\nfunction getNow() {\n if (globalThis.performance && typeof globalThis.performance.now === \"function\") {\n return globalThis.performance.now();\n }\n return Date.now();\n}\n\nfunction reportOptionalError(error, onError) {\n if (!onError) {\n return;\n }\n if (error instanceof Error) {\n onError(error);\n return;\n }\n onError(new Error(String(error)));\n}\n\nfunction emitOptionalHook(callback, payload, onError) {\n if (typeof callback !== \"function\") {\n return;\n }\n try {\n callback(payload);\n } catch (error) {\n reportOptionalError(error, onError);\n }\n}\n\nfunction buildDispatchTelemetrySample({\n kind,\n descriptor,\n index,\n frameId,\n workgroups,\n workgroupSize,\n}) {\n const labelFallback = kind === \"worker\" ? \"worker\" : `job_${index}`;\n const label = normalizeTelemetryText(descriptor?.label, labelFallback);\n return {\n kind,\n index,\n label,\n owner: normalizeTelemetryText(descriptor?.owner, label),\n queueClass: normalizeTelemetryText(descriptor?.queueClass, \"custom\"),\n jobType: normalizeTelemetryText(\n descriptor?.jobType,\n kind === \"worker\" ? \"worker.dispatch\" : label\n ),\n frameId,\n workgroups: toVector(workgroups),\n workgroupSize,\n };\n}\n\nfunction setBindGroups(pass, bindGroups) {\n if (!bindGroups) {\n return;\n }\n bindGroups.forEach((group, index) => {\n if (group) {\n pass.setBindGroup(index, group);\n }\n });\n}\n\nfunction computeWorkerWorkgroups(maxJobs, workgroupSize) {\n const jobs =\n typeof maxJobs === \"function\" ? Number(maxJobs()) : Number(maxJobs);\n if (!Number.isFinite(jobs) || jobs <= 0) {\n throw new Error(\"maxJobsPerDispatch must be a positive number.\");\n }\n const size = Number(workgroupSize);\n if (!Number.isFinite(size) || size <= 0) {\n throw new Error(\"workgroupSize must be a positive number.\");\n }\n return Math.max(1, Math.ceil(jobs / size));\n}\n\nexport function createWorkerLoop(options = {}) {\n const {\n device,\n worker,\n jobs = [],\n workgroupSize = 64,\n maxJobsPerDispatch,\n rateHz,\n label,\n onTick,\n onError,\n frameId,\n telemetry,\n } = options ?? {};\n\n if (!device) {\n throw new Error(\"createWorkerLoop requires a GPUDevice.\");\n }\n if (!worker || !worker.pipeline) {\n throw new Error(\"createWorkerLoop requires a worker pipeline.\");\n }\n\n let running = false;\n let handle = null;\n let usingRaf = false;\n const intervalMs =\n Number.isFinite(rateHz) && rateHz > 0 ? 1000 / rateHz : null;\n\n const tick = () => {\n try {\n const tickStartMs = getNow();\n const currentFrameId = resolveFrameId(frameId);\n const telemetryDispatches = [];\n const encoder = device.createCommandEncoder();\n const pass = encoder.beginComputePass(\n label ? { label } : undefined\n );\n\n pass.setPipeline(worker.pipeline);\n setBindGroups(pass, worker.bindGroups);\n\n const explicitWorkerGroups =\n resolveWorkgroups(worker.workgroups, \"worker\") ??\n resolveWorkgroups(worker.workgroupCount, \"worker\") ??\n resolveWorkgroups(worker.dispatch, \"worker\");\n\n const workerGroups = explicitWorkerGroups\n ? explicitWorkerGroups\n : [computeWorkerWorkgroups(maxJobsPerDispatch, workgroupSize), 1, 1];\n\n if (workerGroups[0] > 0) {\n pass.dispatchWorkgroups(...workerGroups);\n telemetryDispatches.push(\n buildDispatchTelemetrySample({\n kind: \"worker\",\n descriptor: worker,\n index: 0,\n frameId: currentFrameId,\n workgroups: workerGroups,\n workgroupSize: resolveTelemetryWorkgroupSize(\n worker,\n workgroupSize,\n \"worker workgroupSize\"\n ),\n })\n );\n }\n\n jobs.forEach((job, index) => {\n if (!job || !job.pipeline) {\n throw new Error(`Job pipeline missing at index ${index}.`);\n }\n pass.setPipeline(job.pipeline);\n setBindGroups(pass, job.bindGroups);\n const groups = resolveWorkgroups(\n job.workgroups ?? job.workgroupCount ?? job.dispatch,\n `job ${index}`\n );\n if (!groups) {\n throw new Error(`Job ${index} requires a workgroup count.`);\n }\n if (groups[0] > 0) {\n pass.dispatchWorkgroups(...groups);\n telemetryDispatches.push(\n buildDispatchTelemetrySample({\n kind: \"job\",\n descriptor: job,\n index,\n frameId: currentFrameId,\n workgroups: groups,\n workgroupSize: resolveTelemetryWorkgroupSize(\n job,\n undefined,\n `job ${index} workgroupSize`\n ),\n })\n );\n }\n });\n\n pass.end();\n device.queue.submit([encoder.finish()]);\n\n telemetryDispatches.forEach((sample) => {\n emitOptionalHook(telemetry?.onDispatch, sample, onError);\n });\n emitOptionalHook(\n telemetry?.onTick,\n {\n frameId: currentFrameId,\n tickDurationMs: getNow() - tickStartMs,\n dispatchCount: telemetryDispatches.length,\n workerDispatchCount: telemetryDispatches.filter(\n (sample) => sample.kind === \"worker\"\n ).length,\n jobDispatchCount: telemetryDispatches.filter(\n (sample) => sample.kind === \"job\"\n ).length,\n dispatches: telemetryDispatches,\n },\n onError\n );\n\n if (onTick) {\n onTick();\n }\n } catch (err) {\n if (onError) {\n onError(err);\n return;\n }\n throw err;\n }\n };\n\n const scheduleNext = () => {\n if (!running) {\n return;\n }\n if (intervalMs != null) {\n tick();\n usingRaf = false;\n handle = setTimeout(scheduleNext, intervalMs);\n return;\n }\n tick();\n if (typeof requestAnimationFrame === \"function\") {\n usingRaf = true;\n handle = requestAnimationFrame(scheduleNext);\n } else {\n usingRaf = false;\n handle = setTimeout(scheduleNext, 0);\n }\n };\n\n const start = () => {\n if (running) {\n return;\n }\n running = true;\n scheduleNext();\n };\n\n const stop = () => {\n running = false;\n if (handle == null) {\n return;\n }\n if (usingRaf && typeof cancelAnimationFrame === \"function\") {\n cancelAnimationFrame(handle);\n } else {\n clearTimeout(handle);\n }\n handle = null;\n };\n\n return {\n start,\n stop,\n tick,\n get running() {\n return running;\n },\n 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[];\n}\n\nfunction isIdentifier(token) {\n return /^[A-Za-z_][A-Za-z0-9_]*$/.test(token);\n}\n\nfunction readNameAfterType(tokens, startIndex) {\n let i = startIndex;\n if (tokens[i] === \"<\") {\n let depth = 1;\n i += 1;\n while (i < tokens.length && depth > 0) {\n if (tokens[i] === \"<\") {\n depth += 1;\n } else if (tokens[i] === \">\") {\n depth -= 1;\n }\n i += 1;\n }\n }\n return tokens[i];\n}\n\nfunction scanModuleNames(source) {\n const cleaned = stripComments(source);\n const tokens = tokenize(cleaned);\n const names = [];\n let depth = 0;\n for (let i = 0; i < tokens.length; i += 1) {\n const token = tokens[i];\n if (token === \"{\") {\n depth += 1;\n continue;\n }\n if (token === \"}\") {\n depth = Math.max(0, depth - 1);\n continue;\n }\n if (depth !== 0) {\n continue;\n }\n if (token === \"fn\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"fn\", name });\n }\n continue;\n }\n if (token === \"struct\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"struct\", name });\n }\n continue;\n }\n if (token === \"alias\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"alias\", name });\n }\n continue;\n }\n if (token === \"var\" || token === \"let\" || token === \"const\" || token === \"override\") {\n const name = readNameAfterType(tokens, i + 1);\n if (isIdentifier(name)) {\n names.push({ kind: token, name });\n }\n }\n }\n return names;\n}\n\nfunction buildNameIndex(modules) {\n const index = new Map();\n for (const module of modules) {\n for (const item of scanModuleNames(module.source)) {\n const bucket = index.get(item.name) ?? [];\n bucket.push({ kind: item.kind, module: module.name });\n index.set(item.name, bucket);\n }\n }\n return index;\n}\n\nfunction assertNoNameClashes(modules) {\n const index = buildNameIndex(modules);\n const clashes = [];\n for (const [name, entries] of index.entries()) {\n if (entries.length > 1) {\n clashes.push({ name, entries });\n }\n }\n if (clashes.length === 0) {\n return;\n }\n const lines = [\"WGSL debug: identifier clashes detected:\"];\n for (const clash of clashes) {\n const locations = clash.entries\n .map((entry) => `${entry.module} (${entry.kind})`)\n .join(\", \");\n lines.push(`- ${clash.name}: ${locations}`);\n }\n throw new Error(lines.join(\"\\n\"));\n}\n\nfunction assertNotHtmlWgsl(source, context) {\n const sample = source.slice(0, 200).toLowerCase();\n if (\n sample.includes(\"<!doctype\") ||\n sample.includes(\"<html\") ||\n sample.includes(\"<meta\")\n ) {\n const label = context ? ` for ${context}` : \"\";\n throw new Error(\n `Expected WGSL${label} but received HTML. Check the URL or server root.`\n );\n }\n}\n\nfunction renameProcessJob(source, name) {\n return source.replace(/\\bprocess_job\\b/g, name);\n}\n\nfunction getQueueCompatMap(source) {\n if (!/\\bJobMeta\\b/.test(source)) {\n return null;\n }\n return [{ from: /\\bJobMeta\\b/g, to: \"JobDesc\" }];\n}\n\nfunction normalizeQueueMode(mode) {\n const resolved = mode ?? \"flat\";\n if (!workerSchedulerModes.includes(resolved)) {\n throw new Error(\n `queueMode must be one of: ${workerSchedulerModes.join(\", \")}.`\n );\n }\n return resolved;\n}\n\nfunction applyCompatMap(source, map) {\n if (!map || map.length === 0) {\n return source;\n }\n let next = source;\n for (const entry of map) {\n next = next.replace(entry.from, entry.to);\n }\n return next;\n}\n\nfunction normalizeJobs(jobs) {\n const normalized = jobs.map((job, index) => {\n if (typeof job === \"string\") {\n return {\n jobType: index,\n wgsl: job,\n label: `job_${index}`,\n sourceName: `job-${index}`,\n };\n }\n if (!job || typeof job.wgsl !== \"string\") {\n throw new Error(\"Job entries must provide WGSL source strings.\");\n }\n const jobType = job.jobType ?? index;\n const label = job.label ?? `job_${jobType}`;\n return {\n jobType,\n wgsl: job.wgsl,\n label,\n sourceName: job.sourceName ?? job.label ?? `job-${jobType}`,\n };\n });\n const seen = new Set();\n for (const job of normalized) {\n if (seen.has(job.jobType)) {\n throw new Error(`Duplicate job_type detected: ${job.jobType}`);\n }\n seen.add(job.jobType);\n }\n return normalized;\n}\n\nfunction buildProcessJobDispatch(jobs) {\n const lines = [\n \"fn process_job(job_index: u32, job_type: u32, payload_words: u32) {\",\n ];\n if (jobs.length === 0) {\n lines.push(\" return;\");\n lines.push(\"}\");\n return lines.join(\"\\n\");\n }\n jobs.forEach((job, idx) => {\n const clause = idx === 0 ? \"if\" : \"else if\";\n lines.push(` ${clause} (job_type == ${job.jobType}u) {`);\n lines.push(\n ` ${job.entryName}(job_index, job_type, payload_words);`\n );\n lines.push(\" }\");\n });\n lines.push(\"}\");\n return lines.join(\"\\n\");\n}\n\nexport async function loadWorkerWgsl(options = {}) {\n const { url = workerWgslUrl, fetcher } = options ?? {};\n const source = await loadWgslSource({\n url,\n fetcher,\n baseUrl: workerWgslUrl,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"Failed to load worker WGSL source.\");\n }\n return source;\n}\n\nexport async function loadQueueWgsl(options = {}) {\n const { queueCompat = true, queueMode = \"flat\", ...rest } = options ?? {};\n const source = await loadSchedulerWgslRaw({\n mode: normalizeQueueMode(queueMode),\n ...rest,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"Failed to load queue WGSL source.\");\n }\n assertNotHtmlWgsl(source, rest?.url ? String(rest.url) : \"queue WGSL\");\n if (!queueCompat) {\n return source;\n }\n const compatMap = getQueueCompatMap(source);\n return applyCompatMap(source, compatMap);\n}\n\nfunction ensureQueueLifecycleHooks(source) {\n if (/\\bfn\\s+complete_job\\b/.test(source)) {\n return source;\n }\n return `${source}\\n\\nfn complete_job(job_index: u32) {\\n _ = job_index;\\n}`;\n}\n\nexport async function loadJobWgsl(options = {}) {\n const { wgsl, url, fetcher, label } = options ?? {};\n const source = await loadWgslSource({\n wgsl,\n url,\n fetcher,\n baseUrl: workerWgslUrl,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"loadJobWgsl requires a WGSL string or URL.\");\n }\n const jobType = nextJobType;\n nextJobType += 1;\n jobRegistry.push({\n jobType,\n wgsl: source,\n label: label ?? `job_${jobType}`,\n sourceName: label ?? `job-${jobType}`,\n });\n return jobType;\n}\n\nexport async function assembleWorkerWgsl(workerWgsl, options = {}) {\n const {\n queueWgsl,\n queueUrl,\n preludeWgsl,\n preludeUrl,\n fetcher,\n jobs,\n debug,\n queueCompat = true,\n queueMode = \"flat\",\n } = options ?? {};\n const resolvedQueueMode = normalizeQueueMode(queueMode);\n const rawQueueSource =\n queueWgsl ??\n (await loadSchedulerWgslRaw({\n mode: resolvedQueueMode,\n url: queueUrl,\n fetcher,\n }));\n const bodyRaw = workerWgsl ?? (await loadWorkerWgsl({ fetcher }));\n const compatMap = queueCompat ? getQueueCompatMap(rawQueueSource) : null;\n const queueSource = ensureQueueLifecycleHooks(\n applyCompatMap(rawQueueSource, compatMap)\n );\n const preludeRaw =\n preludeWgsl ??\n (preludeUrl\n ? await loadWgslSource({ url: preludeUrl, fetcher, baseUrl: workerWgslUrl })\n : \"\");\n if ((preludeWgsl || preludeUrl) && typeof preludeRaw !== \"string\") {\n throw new Error(\"Failed to load prelude WGSL source.\");\n }\n const preludeSource =\n typeof preludeRaw === \"string\" && preludeRaw.length > 0\n ? applyCompatMap(preludeRaw, compatMap)\n : \"\";\n const body = applyCompatMap(bodyRaw, compatMap);\n const jobList = normalizeJobs(\n typeof jobs === \"undefined\" ? jobRegistry : jobs\n );\n if (!jobList || jobList.length === 0) {\n return `${queueSource}\\n\\n${body}`;\n }\n const rewrittenJobs = jobList.map((job) => {\n const source = applyCompatMap(job.wgsl, compatMap);\n const hasProcessJob = /\\bfn\\s+process_job\\b/.test(source);\n if (!hasProcessJob) {\n throw new Error(\n `Job ${job.sourceName} is missing a process_job() entry function.`\n );\n }\n const entryName = `process_job__${job.jobType}`;\n const renamed = renameProcessJob(source, entryName);\n return { ...job, entryName, wgsl: renamed };\n });\n const dispatch = buildProcessJobDispatch(rewrittenJobs);\n const modulesForDebug = debug\n ? [\n { name: \"queue.wgsl\", source: queueSource },\n ...(preludeSource\n ? [{ name: \"jobs.prelude.wgsl\", source: preludeSource }]\n : []),\n ...rewrittenJobs.map((job) => ({\n name: job.sourceName,\n source: job.wgsl,\n })),\n { name: \"jobs.dispatch.wgsl\", source: dispatch },\n { name: \"worker.wgsl\", source: body },\n ]\n : null;\n if (modulesForDebug) {\n assertNoNameClashes(modulesForDebug);\n }\n const jobBlocks = rewrittenJobs\n .map((job) => `// Job ${job.jobType}: ${job.label}\\n${job.wgsl}`)\n .join(\"\\n\\n\");\n const preludeBlock = preludeSource ? `${preludeSource}\\n\\n` : \"\";\n return `${queueSource}\\n\\n${preludeBlock}${jobBlocks}\\n\\n${dispatch}\\n\\n${body}`;\n}\n\nfunction normalizeWorkgroups(value, label) {\n if (typeof value === \"number\") {\n return [value, 1, 1];\n }\n if (Array.isArray(value)) {\n const [x = 0, y = 1, z = 1] = value;\n return [x, y, z];\n }\n throw new Error(`Invalid workgroup count for ${label}.`);\n}\n\nfunction resolveWorkgroups(value, label) {\n if (typeof value === \"function\") {\n return normalizeWorkgroups(value(), label);\n }\n if (value == null) {\n return null;\n }\n return normalizeWorkgroups(value, label);\n}\n\nfunction normalizeTelemetryText(value, fallback) {\n if (typeof value !== \"string\") {\n return fallback;\n }\n const trimmed = value.trim();\n return trimmed ? trimmed.slice(0, 120) : fallback;\n}\n\nfunction resolveFrameId(value) {\n if (typeof value === \"function\") {\n return resolveFrameId(value());\n }\n if (typeof value !== \"string\") {\n return undefined;\n }\n const trimmed = value.trim();\n return trimmed ? trimmed.slice(0, 120) : undefined;\n}\n\nfunction toVector(workgroups) {\n return { x: workgroups[0], y: workgroups[1], z: workgroups[2] };\n}\n\nfunction resolveTelemetryWorkgroupSize(descriptor, fallback, label) {\n const size =\n descriptor?.workgroupSize == null ? fallback : descriptor.workgroupSize;\n if (size == null) {\n return undefined;\n }\n const normalized =\n typeof size === \"number\" ? normalizeWorkgroups(size, label) : resolveWorkgroups(size, label);\n if (!normalized) {\n return undefined;\n }\n return toVector(normalized);\n}\n\nfunction getNow() {\n if (globalThis.performance && typeof globalThis.performance.now === \"function\") {\n return globalThis.performance.now();\n }\n return Date.now();\n}\n\nfunction reportOptionalError(error, onError) {\n if (!onError) {\n return;\n }\n if (error instanceof Error) {\n onError(error);\n return;\n }\n onError(new Error(String(error)));\n}\n\nfunction emitOptionalHook(callback, payload, onError) {\n if (typeof callback !== \"function\") {\n return;\n }\n try {\n callback(payload);\n } catch (error) {\n reportOptionalError(error, onError);\n }\n}\n\nfunction buildDispatchTelemetrySample({\n kind,\n descriptor,\n index,\n frameId,\n workgroups,\n workgroupSize,\n}) {\n const labelFallback = kind === \"worker\" ? \"worker\" : `job_${index}`;\n const label = normalizeTelemetryText(descriptor?.label, labelFallback);\n return {\n kind,\n index,\n label,\n owner: normalizeTelemetryText(descriptor?.owner, label),\n queueClass: normalizeTelemetryText(descriptor?.queueClass, \"custom\"),\n jobType: normalizeTelemetryText(\n descriptor?.jobType,\n kind === \"worker\" ? \"worker.dispatch\" : label\n ),\n frameId,\n workgroups: toVector(workgroups),\n workgroupSize,\n };\n}\n\nfunction setBindGroups(pass, bindGroups) {\n if (!bindGroups) {\n return;\n }\n bindGroups.forEach((group, index) => {\n if (group) {\n pass.setBindGroup(index, group);\n }\n });\n}\n\nfunction computeWorkerWorkgroups(maxJobs, workgroupSize) {\n const jobs =\n typeof maxJobs === \"function\" ? Number(maxJobs()) : Number(maxJobs);\n if (!Number.isFinite(jobs) || jobs <= 0) {\n throw new Error(\"maxJobsPerDispatch must be a positive number.\");\n }\n const size = Number(workgroupSize);\n if (!Number.isFinite(size) || size <= 0) {\n throw new Error(\"workgroupSize must be a positive number.\");\n }\n return Math.max(1, Math.ceil(jobs / size));\n}\n\nexport function createWorkerLoop(options = {}) {\n const {\n device,\n worker,\n jobs = [],\n workgroupSize = 64,\n maxJobsPerDispatch,\n rateHz,\n label,\n onTick,\n onError,\n frameId,\n telemetry,\n } = options ?? {};\n\n if (!device) {\n throw new Error(\"createWorkerLoop requires a GPUDevice.\");\n }\n if (!worker || !worker.pipeline) {\n throw new Error(\"createWorkerLoop requires a worker pipeline.\");\n }\n\n let running = false;\n let handle = null;\n let usingRaf = false;\n const intervalMs =\n Number.isFinite(rateHz) && rateHz > 0 ? 1000 / rateHz : null;\n\n const tick = () => {\n try {\n const tickStartMs = getNow();\n const currentFrameId = resolveFrameId(frameId);\n const telemetryDispatches = [];\n const encoder = device.createCommandEncoder();\n const pass = encoder.beginComputePass(\n label ? { label } : undefined\n );\n\n pass.setPipeline(worker.pipeline);\n setBindGroups(pass, worker.bindGroups);\n\n const explicitWorkerGroups =\n resolveWorkgroups(worker.workgroups, \"worker\") ??\n resolveWorkgroups(worker.workgroupCount, \"worker\") ??\n resolveWorkgroups(worker.dispatch, \"worker\");\n\n const workerGroups = explicitWorkerGroups\n ? explicitWorkerGroups\n : [computeWorkerWorkgroups(maxJobsPerDispatch, workgroupSize), 1, 1];\n\n if (workerGroups[0] > 0) {\n pass.dispatchWorkgroups(...workerGroups);\n telemetryDispatches.push(\n buildDispatchTelemetrySample({\n kind: \"worker\",\n descriptor: worker,\n index: 0,\n frameId: currentFrameId,\n workgroups: workerGroups,\n workgroupSize: resolveTelemetryWorkgroupSize(\n worker,\n workgroupSize,\n \"worker workgroupSize\"\n ),\n })\n );\n }\n\n jobs.forEach((job, index) => {\n if (!job || !job.pipeline) {\n throw new Error(`Job pipeline missing at index ${index}.`);\n }\n pass.setPipeline(job.pipeline);\n setBindGroups(pass, job.bindGroups);\n const groups = resolveWorkgroups(\n job.workgroups ?? job.workgroupCount ?? job.dispatch,\n `job ${index}`\n );\n if (!groups) {\n throw new Error(`Job ${index} requires a workgroup count.`);\n }\n if (groups[0] > 0) {\n pass.dispatchWorkgroups(...groups);\n telemetryDispatches.push(\n buildDispatchTelemetrySample({\n kind: \"job\",\n descriptor: job,\n index,\n frameId: currentFrameId,\n workgroups: groups,\n workgroupSize: resolveTelemetryWorkgroupSize(\n job,\n undefined,\n `job ${index} workgroupSize`\n ),\n })\n );\n }\n });\n\n pass.end();\n device.queue.submit([encoder.finish()]);\n\n telemetryDispatches.forEach((sample) => {\n emitOptionalHook(telemetry?.onDispatch, sample, onError);\n });\n emitOptionalHook(\n telemetry?.onTick,\n {\n frameId: currentFrameId,\n tickDurationMs: getNow() - tickStartMs,\n dispatchCount: telemetryDispatches.length,\n workerDispatchCount: telemetryDispatches.filter(\n (sample) => sample.kind === \"worker\"\n ).length,\n jobDispatchCount: telemetryDispatches.filter(\n (sample) => sample.kind === \"job\"\n ).length,\n dispatches: telemetryDispatches,\n },\n onError\n );\n\n if (onTick) {\n onTick();\n }\n } catch (err) {\n if (onError) {\n onError(err);\n return;\n }\n throw err;\n }\n };\n\n const scheduleNext = () => {\n if (!running) {\n return;\n }\n if (intervalMs != null) {\n tick();\n usingRaf = false;\n handle = setTimeout(scheduleNext, intervalMs);\n return;\n }\n tick();\n if (typeof requestAnimationFrame === \"function\") {\n usingRaf = true;\n handle = requestAnimationFrame(scheduleNext);\n } else {\n usingRaf = false;\n handle = setTimeout(scheduleNext, 0);\n }\n };\n\n const start = () => {\n if (running) {\n return;\n }\n running = true;\n scheduleNext();\n };\n\n const stop = () => {\n running = false;\n if (handle == null) {\n return;\n }\n if (usingRaf && typeof cancelAnimationFrame === \"function\") {\n cancelAnimationFrame(handle);\n } else {\n clearTimeout(handle);\n }\n handle = null;\n };\n\n return {\n start,\n stop,\n tick,\n get running() {\n return running;\n },\n };\n}\n\nexport const scenePreparationRepresentationBands = Object.freeze([\n \"near\",\n \"mid\",\n \"far\",\n \"horizon\",\n]);\n\nexport const scenePreparationStageFamilies = Object.freeze([\n \"snapshotSelection\",\n \"transformPropagation\",\n \"animationPose\",\n \"proceduralAnimation\",\n \"skinningOrDeformation\",\n \"boundsUpdate\",\n \"lodSelection\",\n \"rtRepresentationSelection\",\n \"visibility\",\n \"lightAssignment\",\n \"renderProxyBuild\",\n \"rtInstancePreparation\",\n]);\n\nconst scenePreparationDefaultStageDependencies = Object.freeze({\n snapshotSelection: Object.freeze([]),\n transformPropagation: Object.freeze([\"snapshotSelection\"]),\n animationPose: Object.freeze([\"transformPropagation\"]),\n proceduralAnimation: Object.freeze([\"animationPose\"]),\n skinningOrDeformation: Object.freeze([\n \"animationPose\",\n \"proceduralAnimation\",\n ]),\n boundsUpdate: Object.freeze([\"skinningOrDeformation\"]),\n lodSelection: Object.freeze([\"boundsUpdate\"]),\n rtRepresentationSelection: Object.freeze([\"lodSelection\"]),\n visibility: Object.freeze([\"boundsUpdate\", \"lodSelection\"]),\n lightAssignment: Object.freeze([\"visibility\"]),\n renderProxyBuild: Object.freeze([\"visibility\", \"lodSelection\"]),\n rtInstancePreparation: Object.freeze([\n \"visibility\",\n \"rtRepresentationSelection\",\n ]),\n});\n\nconst scenePreparationBandPriorityWeights = Object.freeze({\n near: 400,\n mid: 300,\n far: 200,\n horizon: 100,\n});\n\nconst scenePreparationImportanceWeights = Object.freeze({\n low: 0,\n medium: 15,\n high: 30,\n critical: 60,\n});\n\nconst scenePreparationStagePriorityWeights = Object.freeze({\n snapshotSelection: 60,\n transformPropagation: 54,\n animationPose: 50,\n proceduralAnimation: 46,\n skinningOrDeformation: 42,\n boundsUpdate: 38,\n lodSelection: 32,\n rtRepresentationSelection: 28,\n visibility: 34,\n lightAssignment: 24,\n renderProxyBuild: 22,\n rtInstancePreparation: 26,\n});\n\nfunction assertScenePreparationIdentifier(name, value) {\n if (typeof value !== \"string\" || value.trim().length === 0) {\n throw new Error(`${name} must be a non-empty string.`);\n }\n return value.trim();\n}\n\nfunction assertScenePreparationEnum(name, value, allowed) {\n const normalized = assertScenePreparationIdentifier(name, value);\n if (!allowed.includes(normalized)) {\n throw new Error(`${name} must be one of: ${allowed.join(\", \")}.`);\n }\n return normalized;\n}\n\nfunction normalizeScenePreparationStages(stages, chunkLabel) {\n const requested =\n stages === undefined ? scenePreparationStageFamilies : stages;\n if (!Array.isArray(requested) || requested.length === 0) {\n throw new Error(`${chunkLabel}.stages must be a non-empty array when provided.`);\n }\n\n const normalized = [...new Set(\n requested.map((stage, index) =>\n assertScenePreparationEnum(\n `${chunkLabel}.stages[${index}]`,\n stage,\n scenePreparationStageFamilies\n )\n )\n )];\n\n return normalized.sort(\n (left, right) =>\n scenePreparationStageFamilies.indexOf(left) -\n scenePreparationStageFamilies.indexOf(right)\n );\n}\n\nfunction collectScenePreparationDependencies(\n stageFamily,\n includedStages,\n seen = new Set()\n) {\n const dependencies =\n scenePreparationDefaultStageDependencies[stageFamily] ?? [];\n for (const dependency of dependencies) {\n if (includedStages.has(dependency)) {\n seen.add(dependency);\n continue;\n }\n collectScenePreparationDependencies(dependency, includedStages, seen);\n }\n return [...seen].sort(\n (left, right) =>\n scenePreparationStageFamilies.indexOf(left) -\n scenePreparationStageFamilies.indexOf(right)\n );\n}\n\nfunction buildScenePreparationPriority(chunk, stageFamily) {\n const bandWeight =\n scenePreparationBandPriorityWeights[chunk.representationBand] ?? 0;\n const importanceWeight =\n scenePreparationImportanceWeights[chunk.gameplayImportance] ?? 0;\n const stageWeight =\n scenePreparationStagePriorityWeights[stageFamily] ?? 0;\n\n return (\n bandWeight +\n importanceWeight +\n stageWeight +\n (chunk.visible ? 20 : 0) +\n (chunk.playerRelevant ? 20 : 0) +\n (chunk.imageCritical ? 15 : 0)\n );\n}\n\nfunction buildScenePreparationPriorityLanes(jobs) {\n const lanes = new Map();\n for (const job of jobs) {\n const lane = lanes.get(job.priority) ?? {\n priority: job.priority,\n jobIds: [],\n chunkIds: [],\n };\n lane.jobIds.push(job.id);\n if (!lane.chunkIds.includes(job.chunkId)) {\n lane.chunkIds.push(job.chunkId);\n }\n lanes.set(job.priority, lane);\n }\n\n return Object.freeze(\n [...lanes.values()]\n .sort((left, right) => right.priority - left.priority)\n .map((lane) =>\n Object.freeze({\n priority: lane.priority,\n jobIds: Object.freeze([...lane.jobIds]),\n chunkIds: Object.freeze([...lane.chunkIds]),\n jobCount: lane.jobIds.length,\n })\n )\n );\n}\n\nfunction buildScenePreparationTopologicalOrder(jobs) {\n const indegree = new Map(jobs.map((job) => [job.id, job.dependencies.length]));\n const dependentsById = new Map(jobs.map((job) => [job.id, []]));\n\n for (const job of jobs) {\n for (const dependency of job.dependencies) {\n dependentsById.get(dependency)?.push(job.id);\n }\n }\n\n const queue = jobs\n .filter((job) => job.dependencies.length === 0)\n .sort((left, right) => right.priority - left.priority)\n .map((job) => job.id);\n const jobById = new Map(jobs.map((job) => [job.id, job]));\n const order = [];\n\n while (queue.length > 0) {\n const currentId = queue.shift();\n if (!currentId) {\n continue;\n }\n order.push(currentId);\n const unlocked = [];\n for (const dependentId of dependentsById.get(currentId) ?? []) {\n const next = (indegree.get(dependentId) ?? 0) - 1;\n indegree.set(dependentId, next);\n if (next === 0) {\n unlocked.push(dependentId);\n }\n }\n unlocked\n .sort(\n (left, right) =>\n (jobById.get(right)?.priority ?? 0) -\n (jobById.get(left)?.priority ?? 0)\n )\n .forEach((jobId) => {\n queue.push(jobId);\n });\n }\n\n if (order.length !== jobs.length) {\n throw new Error(\"Scene-preparation manifest contains a cycle.\");\n }\n\n return Object.freeze(order);\n}\n\nexport function createScenePreparationManifest(options = {}) {\n const snapshotId = assertScenePreparationIdentifier(\n \"snapshotId\",\n options.snapshotId\n );\n const chunkEntries = Array.isArray(options.chunks) ? options.chunks : [];\n if (chunkEntries.length === 0) {\n throw new Error(\"createScenePreparationManifest requires at least one chunk.\");\n }\n\n const normalizedChunks = chunkEntries.map((chunk, index) => {\n if (!chunk || typeof chunk !== \"object\" || Array.isArray(chunk)) {\n throw new Error(`chunks[${index}] must be an object.`);\n }\n const chunkLabel = `chunks[${index}]`;\n if (chunk.mutatesSimulation === true) {\n throw new Error(\n `${chunkLabel}.mutatesSimulation cannot be true for render preparation.`\n );\n }\n\n return Object.freeze({\n chunkId: assertScenePreparationIdentifier(`${chunkLabel}.chunkId`, chunk.chunkId),\n representationBand: assertScenePreparationEnum(\n `${chunkLabel}.representationBand`,\n chunk.representationBand ?? \"mid\",\n scenePreparationRepresentationBands\n ),\n gameplayImportance: assertScenePreparationEnum(\n `${chunkLabel}.gameplayImportance`,\n chunk.gameplayImportance ?? \"medium\",\n Object.keys(scenePreparationImportanceWeights)\n ),\n visible: chunk.visible !== false,\n playerRelevant: chunk.playerRelevant === true,\n imageCritical: chunk.imageCritical === true,\n stages: normalizeScenePreparationStages(chunk.stages, chunkLabel),\n });\n });\n\n const chunkIds = new Set();\n for (const chunk of normalizedChunks) {\n if (chunkIds.has(chunk.chunkId)) {\n throw new Error(`Duplicate scene-preparation chunk id detected: ${chunk.chunkId}`);\n }\n chunkIds.add(chunk.chunkId);\n }\n\n const jobs = [];\n for (const chunk of normalizedChunks) {\n const includedStages = new Set(chunk.stages);\n for (const stageFamily of chunk.stages) {\n const dependencies = collectScenePreparationDependencies(\n stageFamily,\n includedStages\n ).map(\n (dependency) =>\n `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${dependency}`\n );\n\n jobs.push(\n Object.freeze({\n id: `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${stageFamily}`,\n snapshotId,\n chunkId: chunk.chunkId,\n representationBand: chunk.representationBand,\n stageFamily,\n priority: buildScenePreparationPriority(chunk, stageFamily),\n dependencies: Object.freeze(dependencies),\n dependencyCount: dependencies.length,\n root: dependencies.length === 0,\n authority: \"visual\",\n mutatesSimulation: false,\n gameplayImportance: chunk.gameplayImportance,\n visible: chunk.visible,\n playerRelevant: chunk.playerRelevant,\n imageCritical: chunk.imageCritical,\n })\n );\n }\n }\n\n const jobById = new Map(jobs.map((job) => [job.id, job]));\n let crossChunkDependencyCount = 0;\n let localJoinCount = 0;\n\n const finalizedJobs = Object.freeze(\n jobs.map((job) => {\n const dependents = jobs\n .filter((candidate) => candidate.dependencies.includes(job.id))\n .map((candidate) => candidate.id);\n const crossChunkDependencies = job.dependencies.filter((dependency) => {\n const parent = jobById.get(dependency);\n return parent && parent.chunkId !== job.chunkId;\n });\n crossChunkDependencyCount += crossChunkDependencies.length;\n if (\n job.dependencies.length > 1 &&\n crossChunkDependencies.length === 0\n ) {\n localJoinCount += 1;\n }\n\n return Object.freeze({\n ...job,\n dependents: Object.freeze(dependents),\n dependentCount: dependents.length,\n unresolvedDependencyCount: job.dependencies.length,\n localJoin:\n 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|
+311
-0
@@ -668,4 +668,313 @@ var __require = /* @__PURE__ */ ((x) => typeof require !== "undefined" ? require : typeof Proxy !== "undefined" ? new Proxy(x, { | ||
| } | ||
| var scenePreparationRepresentationBands = Object.freeze([ | ||
| "near", | ||
| "mid", | ||
| "far", | ||
| "horizon" | ||
| ]); | ||
| var scenePreparationStageFamilies = Object.freeze([ | ||
| "snapshotSelection", | ||
| "transformPropagation", | ||
| "animationPose", | ||
| "proceduralAnimation", | ||
| "skinningOrDeformation", | ||
| "boundsUpdate", | ||
| "lodSelection", | ||
| "rtRepresentationSelection", | ||
| "visibility", | ||
| "lightAssignment", | ||
| "renderProxyBuild", | ||
| "rtInstancePreparation" | ||
| ]); | ||
| var scenePreparationDefaultStageDependencies = Object.freeze({ | ||
| snapshotSelection: Object.freeze([]), | ||
| transformPropagation: Object.freeze(["snapshotSelection"]), | ||
| animationPose: Object.freeze(["transformPropagation"]), | ||
| proceduralAnimation: Object.freeze(["animationPose"]), | ||
| skinningOrDeformation: Object.freeze([ | ||
| "animationPose", | ||
| "proceduralAnimation" | ||
| ]), | ||
| boundsUpdate: Object.freeze(["skinningOrDeformation"]), | ||
| lodSelection: Object.freeze(["boundsUpdate"]), | ||
| rtRepresentationSelection: Object.freeze(["lodSelection"]), | ||
| visibility: Object.freeze(["boundsUpdate", "lodSelection"]), | ||
| lightAssignment: Object.freeze(["visibility"]), | ||
| renderProxyBuild: Object.freeze(["visibility", "lodSelection"]), | ||
| rtInstancePreparation: Object.freeze([ | ||
| "visibility", | ||
| "rtRepresentationSelection" | ||
| ]) | ||
| }); | ||
| var scenePreparationBandPriorityWeights = Object.freeze({ | ||
| near: 400, | ||
| mid: 300, | ||
| far: 200, | ||
| horizon: 100 | ||
| }); | ||
| var scenePreparationImportanceWeights = Object.freeze({ | ||
| low: 0, | ||
| medium: 15, | ||
| high: 30, | ||
| critical: 60 | ||
| }); | ||
| var scenePreparationStagePriorityWeights = Object.freeze({ | ||
| snapshotSelection: 60, | ||
| transformPropagation: 54, | ||
| animationPose: 50, | ||
| proceduralAnimation: 46, | ||
| skinningOrDeformation: 42, | ||
| boundsUpdate: 38, | ||
| lodSelection: 32, | ||
| rtRepresentationSelection: 28, | ||
| visibility: 34, | ||
| lightAssignment: 24, | ||
| renderProxyBuild: 22, | ||
| rtInstancePreparation: 26 | ||
| }); | ||
| function assertScenePreparationIdentifier(name, value) { | ||
| if (typeof value !== "string" || value.trim().length === 0) { | ||
| throw new Error(`${name} must be a non-empty string.`); | ||
| } | ||
| return value.trim(); | ||
| } | ||
| function assertScenePreparationEnum(name, value, allowed) { | ||
| const normalized = assertScenePreparationIdentifier(name, value); | ||
| if (!allowed.includes(normalized)) { | ||
| throw new Error(`${name} must be one of: ${allowed.join(", ")}.`); | ||
| } | ||
| return normalized; | ||
| } | ||
| function normalizeScenePreparationStages(stages, chunkLabel) { | ||
| const requested = stages === void 0 ? scenePreparationStageFamilies : stages; | ||
| if (!Array.isArray(requested) || requested.length === 0) { | ||
| throw new Error(`${chunkLabel}.stages must be a non-empty array when provided.`); | ||
| } | ||
| const normalized = [...new Set( | ||
| requested.map( | ||
| (stage, index) => assertScenePreparationEnum( | ||
| `${chunkLabel}.stages[${index}]`, | ||
| stage, | ||
| scenePreparationStageFamilies | ||
| ) | ||
| ) | ||
| )]; | ||
| return normalized.sort( | ||
| (left, right) => scenePreparationStageFamilies.indexOf(left) - scenePreparationStageFamilies.indexOf(right) | ||
| ); | ||
| } | ||
| function collectScenePreparationDependencies(stageFamily, includedStages, seen = /* @__PURE__ */ new Set()) { | ||
| const dependencies = scenePreparationDefaultStageDependencies[stageFamily] ?? []; | ||
| for (const dependency of dependencies) { | ||
| if (includedStages.has(dependency)) { | ||
| seen.add(dependency); | ||
| continue; | ||
| } | ||
| collectScenePreparationDependencies(dependency, includedStages, seen); | ||
| } | ||
| return [...seen].sort( | ||
| (left, right) => scenePreparationStageFamilies.indexOf(left) - scenePreparationStageFamilies.indexOf(right) | ||
| ); | ||
| } | ||
| function buildScenePreparationPriority(chunk, stageFamily) { | ||
| const bandWeight = scenePreparationBandPriorityWeights[chunk.representationBand] ?? 0; | ||
| const importanceWeight = scenePreparationImportanceWeights[chunk.gameplayImportance] ?? 0; | ||
| const stageWeight = scenePreparationStagePriorityWeights[stageFamily] ?? 0; | ||
| return bandWeight + importanceWeight + stageWeight + (chunk.visible ? 20 : 0) + (chunk.playerRelevant ? 20 : 0) + (chunk.imageCritical ? 15 : 0); | ||
| } | ||
| function buildScenePreparationPriorityLanes(jobs) { | ||
| const lanes = /* @__PURE__ */ new Map(); | ||
| for (const job of jobs) { | ||
| const lane = lanes.get(job.priority) ?? { | ||
| priority: job.priority, | ||
| jobIds: [], | ||
| chunkIds: [] | ||
| }; | ||
| lane.jobIds.push(job.id); | ||
| if (!lane.chunkIds.includes(job.chunkId)) { | ||
| lane.chunkIds.push(job.chunkId); | ||
| } | ||
| lanes.set(job.priority, lane); | ||
| } | ||
| return Object.freeze( | ||
| [...lanes.values()].sort((left, right) => right.priority - left.priority).map( | ||
| (lane) => Object.freeze({ | ||
| priority: lane.priority, | ||
| jobIds: Object.freeze([...lane.jobIds]), | ||
| chunkIds: Object.freeze([...lane.chunkIds]), | ||
| jobCount: lane.jobIds.length | ||
| }) | ||
| ) | ||
| ); | ||
| } | ||
| function buildScenePreparationTopologicalOrder(jobs) { | ||
| const indegree = new Map(jobs.map((job) => [job.id, job.dependencies.length])); | ||
| const dependentsById = new Map(jobs.map((job) => [job.id, []])); | ||
| for (const job of jobs) { | ||
| for (const dependency of job.dependencies) { | ||
| dependentsById.get(dependency)?.push(job.id); | ||
| } | ||
| } | ||
| const queue = jobs.filter((job) => job.dependencies.length === 0).sort((left, right) => right.priority - left.priority).map((job) => job.id); | ||
| const jobById = new Map(jobs.map((job) => [job.id, job])); | ||
| const order = []; | ||
| while (queue.length > 0) { | ||
| const currentId = queue.shift(); | ||
| if (!currentId) { | ||
| continue; | ||
| } | ||
| order.push(currentId); | ||
| const unlocked = []; | ||
| for (const dependentId of dependentsById.get(currentId) ?? []) { | ||
| const next = (indegree.get(dependentId) ?? 0) - 1; | ||
| indegree.set(dependentId, next); | ||
| if (next === 0) { | ||
| unlocked.push(dependentId); | ||
| } | ||
| } | ||
| unlocked.sort( | ||
| (left, right) => (jobById.get(right)?.priority ?? 0) - (jobById.get(left)?.priority ?? 0) | ||
| ).forEach((jobId) => { | ||
| queue.push(jobId); | ||
| }); | ||
| } | ||
| if (order.length !== jobs.length) { | ||
| throw new Error("Scene-preparation manifest contains a cycle."); | ||
| } | ||
| return Object.freeze(order); | ||
| } | ||
| function createScenePreparationManifest(options = {}) { | ||
| const snapshotId = assertScenePreparationIdentifier( | ||
| "snapshotId", | ||
| options.snapshotId | ||
| ); | ||
| const chunkEntries = Array.isArray(options.chunks) ? options.chunks : []; | ||
| if (chunkEntries.length === 0) { | ||
| throw new Error("createScenePreparationManifest requires at least one chunk."); | ||
| } | ||
| const normalizedChunks = chunkEntries.map((chunk, index) => { | ||
| if (!chunk || typeof chunk !== "object" || Array.isArray(chunk)) { | ||
| throw new Error(`chunks[${index}] must be an object.`); | ||
| } | ||
| const chunkLabel = `chunks[${index}]`; | ||
| if (chunk.mutatesSimulation === true) { | ||
| throw new Error( | ||
| `${chunkLabel}.mutatesSimulation cannot be true for render preparation.` | ||
| ); | ||
| } | ||
| return Object.freeze({ | ||
| chunkId: assertScenePreparationIdentifier(`${chunkLabel}.chunkId`, chunk.chunkId), | ||
| representationBand: assertScenePreparationEnum( | ||
| `${chunkLabel}.representationBand`, | ||
| chunk.representationBand ?? "mid", | ||
| scenePreparationRepresentationBands | ||
| ), | ||
| gameplayImportance: assertScenePreparationEnum( | ||
| `${chunkLabel}.gameplayImportance`, | ||
| chunk.gameplayImportance ?? "medium", | ||
| Object.keys(scenePreparationImportanceWeights) | ||
| ), | ||
| visible: chunk.visible !== false, | ||
| playerRelevant: chunk.playerRelevant === true, | ||
| imageCritical: chunk.imageCritical === true, | ||
| stages: normalizeScenePreparationStages(chunk.stages, chunkLabel) | ||
| }); | ||
| }); | ||
| const chunkIds = /* @__PURE__ */ new Set(); | ||
| for (const chunk of normalizedChunks) { | ||
| if (chunkIds.has(chunk.chunkId)) { | ||
| throw new Error(`Duplicate scene-preparation chunk id detected: ${chunk.chunkId}`); | ||
| } | ||
| chunkIds.add(chunk.chunkId); | ||
| } | ||
| const jobs = []; | ||
| for (const chunk of normalizedChunks) { | ||
| const includedStages = new Set(chunk.stages); | ||
| for (const stageFamily of chunk.stages) { | ||
| const dependencies = collectScenePreparationDependencies( | ||
| stageFamily, | ||
| includedStages | ||
| ).map( | ||
| (dependency) => `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${dependency}` | ||
| ); | ||
| jobs.push( | ||
| Object.freeze({ | ||
| id: `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${stageFamily}`, | ||
| snapshotId, | ||
| chunkId: chunk.chunkId, | ||
| representationBand: chunk.representationBand, | ||
| stageFamily, | ||
| priority: buildScenePreparationPriority(chunk, stageFamily), | ||
| dependencies: Object.freeze(dependencies), | ||
| dependencyCount: dependencies.length, | ||
| root: dependencies.length === 0, | ||
| authority: "visual", | ||
| mutatesSimulation: false, | ||
| gameplayImportance: chunk.gameplayImportance, | ||
| visible: chunk.visible, | ||
| playerRelevant: chunk.playerRelevant, | ||
| imageCritical: chunk.imageCritical | ||
| }) | ||
| ); | ||
| } | ||
| } | ||
| const jobById = new Map(jobs.map((job) => [job.id, job])); | ||
| let crossChunkDependencyCount = 0; | ||
| let localJoinCount = 0; | ||
| const finalizedJobs = Object.freeze( | ||
| jobs.map((job) => { | ||
| const dependents = jobs.filter((candidate) => candidate.dependencies.includes(job.id)).map((candidate) => candidate.id); | ||
| const crossChunkDependencies = job.dependencies.filter((dependency) => { | ||
| const parent = jobById.get(dependency); | ||
| return parent && parent.chunkId !== job.chunkId; | ||
| }); | ||
| crossChunkDependencyCount += crossChunkDependencies.length; | ||
| if (job.dependencies.length > 1 && crossChunkDependencies.length === 0) { | ||
| localJoinCount += 1; | ||
| } | ||
| return Object.freeze({ | ||
| ...job, | ||
| dependents: Object.freeze(dependents), | ||
| dependentCount: dependents.length, | ||
| unresolvedDependencyCount: job.dependencies.length, | ||
| localJoin: job.dependencies.length > 1 && crossChunkDependencies.length === 0 | ||
| }); | ||
| }) | ||
| ); | ||
| const graph = Object.freeze({ | ||
| schedulerMode: "dag", | ||
| jobCount: finalizedJobs.length, | ||
| chunkCount: normalizedChunks.length, | ||
| chunkIds: Object.freeze(normalizedChunks.map((chunk) => chunk.chunkId)), | ||
| representationBands: Object.freeze( | ||
| [...new Set(normalizedChunks.map((chunk) => chunk.representationBand))] | ||
| ), | ||
| roots: Object.freeze( | ||
| finalizedJobs.filter((job) => job.root).map((job) => job.id) | ||
| ), | ||
| chunkRoots: Object.freeze( | ||
| Object.fromEntries( | ||
| normalizedChunks.map((chunk) => [ | ||
| chunk.chunkId, | ||
| finalizedJobs.filter((job) => job.chunkId === chunk.chunkId && job.root).map((job) => job.id) | ||
| ]) | ||
| ) | ||
| ), | ||
| topologicalOrder: buildScenePreparationTopologicalOrder(finalizedJobs), | ||
| priorityLanes: buildScenePreparationPriorityLanes(finalizedJobs), | ||
| localJoinCount, | ||
| crossChunkDependencyCount | ||
| }); | ||
| return Object.freeze({ | ||
| schemaVersion: 1, | ||
| owner: "scene-preparation", | ||
| schedulerMode: "dag", | ||
| snapshotId, | ||
| jobs: finalizedJobs, | ||
| graph | ||
| }); | ||
| } | ||
| export { | ||
| assembleWorkerWgsl, | ||
| createScenePreparationManifest, | ||
| createWorkerLoop, | ||
@@ -675,4 +984,6 @@ loadJobWgsl, | ||
| loadWorkerWgsl, | ||
| scenePreparationRepresentationBands, | ||
| scenePreparationStageFamilies, | ||
| workerWgslUrl | ||
| }; | ||
| //# sourceMappingURL=index.js.map |
@@ -1,1 +0,1 @@ | ||
| {"version":3,"sources":["../src/index.js"],"sourcesContent":["import {\n loadSchedulerWgsl as loadSchedulerWgslRaw,\n schedulerModes as workerSchedulerModes,\n} from \"@plasius/gpu-lock-free-queue\";\n\nexport const workerWgslUrl = (() => {\n if (typeof __IMPORT_META_URL__ !== \"undefined\") {\n return new URL(\"./worker.wgsl\", __IMPORT_META_URL__);\n }\n if (typeof __filename !== \"undefined\" && typeof require !== \"undefined\") {\n const { pathToFileURL } = require(\"node:url\");\n return new URL(\"./worker.wgsl\", pathToFileURL(__filename));\n }\n const base =\n typeof process !== \"undefined\" && process.cwd\n ? `file://${process.cwd()}/`\n : \"file:///\";\n return new URL(\"./worker.wgsl\", base);\n})();\n\nconst jobRegistry = [];\nlet nextJobType = 0;\n\nasync function loadWgslSource(options = {}) {\n const { wgsl, url, fetcher = globalThis.fetch, baseUrl } = options ?? {};\n if (typeof wgsl === \"string\") {\n assertNotHtmlWgsl(wgsl, \"inline WGSL\");\n return wgsl;\n }\n if (!url) {\n return null;\n }\n const resolved = url instanceof URL ? url : new URL(url, baseUrl);\n if (!fetcher) {\n if (resolved.protocol !== \"file:\") {\n throw new Error(\"No fetcher available for non-file WGSL URL.\");\n }\n const { readFile } = await import(\"fs/promises\");\n const { fileURLToPath } = await import(\"url\");\n const source = await readFile(fileURLToPath(resolved), \"utf8\");\n assertNotHtmlWgsl(source, resolved.href);\n return source;\n }\n const response = await fetcher(resolved);\n if (!response.ok) {\n const status = \"status\" in response ? response.status : \"unknown\";\n const statusText = \"statusText\" in response ? response.statusText : \"\";\n const detail = statusText ? `${status} ${statusText}` : `${status}`;\n throw new Error(`Failed to load WGSL (${detail})`);\n }\n const source = await response.text();\n assertNotHtmlWgsl(source, resolved.href);\n return source;\n}\n\nfunction stripComments(source) {\n return source\n .replace(/\\/\\*[\\s\\S]*?\\*\\//g, \"\")\n .replace(/\\/\\/.*$/gm, \"\");\n}\n\nfunction tokenize(source) {\n return source.match(/[A-Za-z_][A-Za-z0-9_]*|[{}();<>,:=]/g) ?? [];\n}\n\nfunction isIdentifier(token) {\n return /^[A-Za-z_][A-Za-z0-9_]*$/.test(token);\n}\n\nfunction readNameAfterType(tokens, startIndex) {\n let i = startIndex;\n if (tokens[i] === \"<\") {\n let depth = 1;\n i += 1;\n while (i < tokens.length && depth > 0) {\n if (tokens[i] === \"<\") {\n depth += 1;\n } else if (tokens[i] === \">\") {\n depth -= 1;\n }\n i += 1;\n }\n }\n return tokens[i];\n}\n\nfunction scanModuleNames(source) {\n const cleaned = stripComments(source);\n const tokens = tokenize(cleaned);\n const names = [];\n let depth = 0;\n for (let i = 0; i < tokens.length; i += 1) {\n const token = tokens[i];\n if (token === \"{\") {\n depth += 1;\n continue;\n }\n if (token === \"}\") {\n depth = Math.max(0, depth - 1);\n continue;\n }\n if (depth !== 0) {\n continue;\n }\n if (token === \"fn\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"fn\", name });\n }\n continue;\n }\n if (token === \"struct\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"struct\", name });\n }\n continue;\n }\n if (token === \"alias\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"alias\", name });\n }\n continue;\n }\n if (token === \"var\" || token === \"let\" || token === \"const\" || token === \"override\") {\n const name = readNameAfterType(tokens, i + 1);\n if (isIdentifier(name)) {\n names.push({ kind: token, name });\n }\n }\n }\n return names;\n}\n\nfunction buildNameIndex(modules) {\n const index = new Map();\n for (const module of modules) {\n for (const item of scanModuleNames(module.source)) {\n const bucket = index.get(item.name) ?? [];\n bucket.push({ kind: item.kind, module: module.name });\n index.set(item.name, bucket);\n }\n }\n return index;\n}\n\nfunction assertNoNameClashes(modules) {\n const index = buildNameIndex(modules);\n const clashes = [];\n for (const [name, entries] of index.entries()) {\n if (entries.length > 1) {\n clashes.push({ name, entries });\n }\n }\n if (clashes.length === 0) {\n return;\n }\n const lines = [\"WGSL debug: identifier clashes detected:\"];\n for (const clash of clashes) {\n const locations = clash.entries\n .map((entry) => `${entry.module} (${entry.kind})`)\n .join(\", \");\n lines.push(`- ${clash.name}: ${locations}`);\n }\n throw new Error(lines.join(\"\\n\"));\n}\n\nfunction assertNotHtmlWgsl(source, context) {\n const sample = source.slice(0, 200).toLowerCase();\n if (\n sample.includes(\"<!doctype\") ||\n sample.includes(\"<html\") ||\n sample.includes(\"<meta\")\n ) {\n const label = context ? ` for ${context}` : \"\";\n throw new Error(\n `Expected WGSL${label} but received HTML. Check the URL or server root.`\n );\n }\n}\n\nfunction renameProcessJob(source, name) {\n return source.replace(/\\bprocess_job\\b/g, name);\n}\n\nfunction getQueueCompatMap(source) {\n if (!/\\bJobMeta\\b/.test(source)) {\n return null;\n }\n return [{ from: /\\bJobMeta\\b/g, to: \"JobDesc\" }];\n}\n\nfunction normalizeQueueMode(mode) {\n const resolved = mode ?? \"flat\";\n if (!workerSchedulerModes.includes(resolved)) {\n throw new Error(\n `queueMode must be one of: ${workerSchedulerModes.join(\", \")}.`\n );\n }\n return resolved;\n}\n\nfunction applyCompatMap(source, map) {\n if (!map || map.length === 0) {\n return source;\n }\n let next = source;\n for (const entry of map) {\n next = next.replace(entry.from, entry.to);\n }\n return next;\n}\n\nfunction normalizeJobs(jobs) {\n const normalized = jobs.map((job, index) => {\n if (typeof job === \"string\") {\n return {\n jobType: index,\n wgsl: job,\n label: `job_${index}`,\n sourceName: `job-${index}`,\n };\n }\n if (!job || typeof job.wgsl !== \"string\") {\n throw new Error(\"Job entries must provide WGSL source strings.\");\n }\n const jobType = job.jobType ?? index;\n const label = job.label ?? `job_${jobType}`;\n return {\n jobType,\n wgsl: job.wgsl,\n label,\n sourceName: job.sourceName ?? job.label ?? `job-${jobType}`,\n };\n });\n const seen = new Set();\n for (const job of normalized) {\n if (seen.has(job.jobType)) {\n throw new Error(`Duplicate job_type detected: ${job.jobType}`);\n }\n seen.add(job.jobType);\n }\n return normalized;\n}\n\nfunction buildProcessJobDispatch(jobs) {\n const lines = [\n \"fn process_job(job_index: u32, job_type: u32, payload_words: u32) {\",\n ];\n if (jobs.length === 0) {\n lines.push(\" return;\");\n lines.push(\"}\");\n return lines.join(\"\\n\");\n }\n jobs.forEach((job, idx) => {\n const clause = idx === 0 ? \"if\" : \"else if\";\n lines.push(` ${clause} (job_type == ${job.jobType}u) {`);\n lines.push(\n ` ${job.entryName}(job_index, job_type, payload_words);`\n );\n lines.push(\" }\");\n });\n lines.push(\"}\");\n return lines.join(\"\\n\");\n}\n\nexport async function loadWorkerWgsl(options = {}) {\n const { url = workerWgslUrl, fetcher } = options ?? {};\n const source = await loadWgslSource({\n url,\n fetcher,\n baseUrl: workerWgslUrl,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"Failed to load worker WGSL source.\");\n }\n return source;\n}\n\nexport async function loadQueueWgsl(options = {}) {\n const { queueCompat = true, queueMode = \"flat\", ...rest } = options ?? {};\n const source = await loadSchedulerWgslRaw({\n mode: normalizeQueueMode(queueMode),\n ...rest,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"Failed to load queue WGSL source.\");\n }\n assertNotHtmlWgsl(source, rest?.url ? String(rest.url) : \"queue WGSL\");\n if (!queueCompat) {\n return source;\n }\n const compatMap = getQueueCompatMap(source);\n return applyCompatMap(source, compatMap);\n}\n\nfunction ensureQueueLifecycleHooks(source) {\n if (/\\bfn\\s+complete_job\\b/.test(source)) {\n return source;\n }\n return `${source}\\n\\nfn complete_job(job_index: u32) {\\n _ = job_index;\\n}`;\n}\n\nexport async function loadJobWgsl(options = {}) {\n const { wgsl, url, fetcher, label } = options ?? {};\n const source = await loadWgslSource({\n wgsl,\n url,\n fetcher,\n baseUrl: workerWgslUrl,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"loadJobWgsl requires a WGSL string or URL.\");\n }\n const jobType = nextJobType;\n nextJobType += 1;\n jobRegistry.push({\n jobType,\n wgsl: source,\n label: label ?? `job_${jobType}`,\n sourceName: label ?? `job-${jobType}`,\n });\n return jobType;\n}\n\nexport async function assembleWorkerWgsl(workerWgsl, options = {}) {\n const {\n queueWgsl,\n queueUrl,\n preludeWgsl,\n preludeUrl,\n fetcher,\n jobs,\n debug,\n queueCompat = true,\n queueMode = \"flat\",\n } = options ?? {};\n const resolvedQueueMode = normalizeQueueMode(queueMode);\n const rawQueueSource =\n queueWgsl ??\n (await loadSchedulerWgslRaw({\n mode: resolvedQueueMode,\n url: queueUrl,\n fetcher,\n }));\n const bodyRaw = workerWgsl ?? (await loadWorkerWgsl({ fetcher }));\n const compatMap = queueCompat ? getQueueCompatMap(rawQueueSource) : null;\n const queueSource = ensureQueueLifecycleHooks(\n applyCompatMap(rawQueueSource, compatMap)\n );\n const preludeRaw =\n preludeWgsl ??\n (preludeUrl\n ? await loadWgslSource({ url: preludeUrl, fetcher, baseUrl: workerWgslUrl })\n : \"\");\n if ((preludeWgsl || preludeUrl) && typeof preludeRaw !== \"string\") {\n throw new Error(\"Failed to load prelude WGSL source.\");\n }\n const preludeSource =\n typeof preludeRaw === \"string\" && preludeRaw.length > 0\n ? applyCompatMap(preludeRaw, compatMap)\n : \"\";\n const body = applyCompatMap(bodyRaw, compatMap);\n const jobList = normalizeJobs(\n typeof jobs === \"undefined\" ? jobRegistry : jobs\n );\n if (!jobList || jobList.length === 0) {\n return `${queueSource}\\n\\n${body}`;\n }\n const rewrittenJobs = jobList.map((job) => {\n const source = applyCompatMap(job.wgsl, compatMap);\n const hasProcessJob = /\\bfn\\s+process_job\\b/.test(source);\n if (!hasProcessJob) {\n throw new Error(\n `Job ${job.sourceName} is missing a process_job() entry function.`\n );\n }\n const entryName = `process_job__${job.jobType}`;\n const renamed = renameProcessJob(source, entryName);\n return { ...job, entryName, wgsl: renamed };\n });\n const dispatch = buildProcessJobDispatch(rewrittenJobs);\n const modulesForDebug = debug\n ? [\n { name: \"queue.wgsl\", source: queueSource },\n ...(preludeSource\n ? 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[];\n}\n\nfunction isIdentifier(token) {\n return /^[A-Za-z_][A-Za-z0-9_]*$/.test(token);\n}\n\nfunction readNameAfterType(tokens, startIndex) {\n let i = startIndex;\n if (tokens[i] === \"<\") {\n let depth = 1;\n i += 1;\n while (i < tokens.length && depth > 0) {\n if (tokens[i] === \"<\") {\n depth += 1;\n } else if (tokens[i] === \">\") {\n depth -= 1;\n }\n i += 1;\n }\n }\n return tokens[i];\n}\n\nfunction scanModuleNames(source) {\n const cleaned = stripComments(source);\n const tokens = tokenize(cleaned);\n const names = [];\n let depth = 0;\n for (let i = 0; i < tokens.length; i += 1) {\n const token = tokens[i];\n if (token === \"{\") {\n depth += 1;\n continue;\n }\n if (token === \"}\") {\n depth = Math.max(0, depth - 1);\n continue;\n }\n if (depth !== 0) {\n continue;\n }\n if (token === \"fn\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"fn\", name });\n }\n continue;\n }\n if (token === \"struct\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"struct\", name });\n }\n continue;\n }\n if (token === \"alias\") {\n const name = tokens[i + 1];\n if (isIdentifier(name)) {\n names.push({ kind: \"alias\", name });\n }\n continue;\n }\n if (token === \"var\" || token === \"let\" || token === \"const\" || token === \"override\") {\n const name = readNameAfterType(tokens, i + 1);\n if (isIdentifier(name)) {\n names.push({ kind: token, name });\n }\n }\n }\n return names;\n}\n\nfunction buildNameIndex(modules) {\n const index = new Map();\n for (const module of modules) {\n for (const item of scanModuleNames(module.source)) {\n const bucket = index.get(item.name) ?? [];\n bucket.push({ kind: item.kind, module: module.name });\n index.set(item.name, bucket);\n }\n }\n return index;\n}\n\nfunction assertNoNameClashes(modules) {\n const index = buildNameIndex(modules);\n const clashes = [];\n for (const [name, entries] of index.entries()) {\n if (entries.length > 1) {\n clashes.push({ name, entries });\n }\n }\n if (clashes.length === 0) {\n return;\n }\n const lines = [\"WGSL debug: identifier clashes detected:\"];\n for (const clash of clashes) {\n const locations = clash.entries\n .map((entry) => `${entry.module} (${entry.kind})`)\n .join(\", \");\n lines.push(`- ${clash.name}: ${locations}`);\n }\n throw new Error(lines.join(\"\\n\"));\n}\n\nfunction assertNotHtmlWgsl(source, context) {\n const sample = source.slice(0, 200).toLowerCase();\n if (\n sample.includes(\"<!doctype\") ||\n sample.includes(\"<html\") ||\n sample.includes(\"<meta\")\n ) {\n const label = context ? ` for ${context}` : \"\";\n throw new Error(\n `Expected WGSL${label} but received HTML. Check the URL or server root.`\n );\n }\n}\n\nfunction renameProcessJob(source, name) {\n return source.replace(/\\bprocess_job\\b/g, name);\n}\n\nfunction getQueueCompatMap(source) {\n if (!/\\bJobMeta\\b/.test(source)) {\n return null;\n }\n return [{ from: /\\bJobMeta\\b/g, to: \"JobDesc\" }];\n}\n\nfunction normalizeQueueMode(mode) {\n const resolved = mode ?? \"flat\";\n if (!workerSchedulerModes.includes(resolved)) {\n throw new Error(\n `queueMode must be one of: ${workerSchedulerModes.join(\", \")}.`\n );\n }\n return resolved;\n}\n\nfunction applyCompatMap(source, map) {\n if (!map || map.length === 0) {\n return source;\n }\n let next = source;\n for (const entry of map) {\n next = next.replace(entry.from, entry.to);\n }\n return next;\n}\n\nfunction normalizeJobs(jobs) {\n const normalized = jobs.map((job, index) => {\n if (typeof job === \"string\") {\n return {\n jobType: index,\n wgsl: job,\n label: `job_${index}`,\n sourceName: `job-${index}`,\n };\n }\n if (!job || typeof job.wgsl !== \"string\") {\n throw new Error(\"Job entries must provide WGSL source strings.\");\n }\n const jobType = job.jobType ?? index;\n const label = job.label ?? `job_${jobType}`;\n return {\n jobType,\n wgsl: job.wgsl,\n label,\n sourceName: job.sourceName ?? job.label ?? `job-${jobType}`,\n };\n });\n const seen = new Set();\n for (const job of normalized) {\n if (seen.has(job.jobType)) {\n throw new Error(`Duplicate job_type detected: ${job.jobType}`);\n }\n seen.add(job.jobType);\n }\n return normalized;\n}\n\nfunction buildProcessJobDispatch(jobs) {\n const lines = [\n \"fn process_job(job_index: u32, job_type: u32, payload_words: u32) {\",\n ];\n if (jobs.length === 0) {\n lines.push(\" return;\");\n lines.push(\"}\");\n return lines.join(\"\\n\");\n }\n jobs.forEach((job, idx) => {\n const clause = idx === 0 ? \"if\" : \"else if\";\n lines.push(` ${clause} (job_type == ${job.jobType}u) {`);\n lines.push(\n ` ${job.entryName}(job_index, job_type, payload_words);`\n );\n lines.push(\" }\");\n });\n lines.push(\"}\");\n return lines.join(\"\\n\");\n}\n\nexport async function loadWorkerWgsl(options = {}) {\n const { url = workerWgslUrl, fetcher } = options ?? {};\n const source = await loadWgslSource({\n url,\n fetcher,\n baseUrl: workerWgslUrl,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"Failed to load worker WGSL source.\");\n }\n return source;\n}\n\nexport async function loadQueueWgsl(options = {}) {\n const { queueCompat = true, queueMode = \"flat\", ...rest } = options ?? {};\n const source = await loadSchedulerWgslRaw({\n mode: normalizeQueueMode(queueMode),\n ...rest,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"Failed to load queue WGSL source.\");\n }\n assertNotHtmlWgsl(source, rest?.url ? String(rest.url) : \"queue WGSL\");\n if (!queueCompat) {\n return source;\n }\n const compatMap = getQueueCompatMap(source);\n return applyCompatMap(source, compatMap);\n}\n\nfunction ensureQueueLifecycleHooks(source) {\n if (/\\bfn\\s+complete_job\\b/.test(source)) {\n return source;\n }\n return `${source}\\n\\nfn complete_job(job_index: u32) {\\n _ = job_index;\\n}`;\n}\n\nexport async function loadJobWgsl(options = {}) {\n const { wgsl, url, fetcher, label } = options ?? {};\n const source = await loadWgslSource({\n wgsl,\n url,\n fetcher,\n baseUrl: workerWgslUrl,\n });\n if (typeof source !== \"string\") {\n throw new Error(\"loadJobWgsl requires a WGSL string or URL.\");\n }\n const jobType = nextJobType;\n nextJobType += 1;\n jobRegistry.push({\n jobType,\n wgsl: source,\n label: label ?? `job_${jobType}`,\n sourceName: label ?? `job-${jobType}`,\n });\n return jobType;\n}\n\nexport async function assembleWorkerWgsl(workerWgsl, options = {}) {\n const {\n queueWgsl,\n queueUrl,\n preludeWgsl,\n preludeUrl,\n fetcher,\n jobs,\n debug,\n queueCompat = true,\n queueMode = \"flat\",\n } = options ?? {};\n const resolvedQueueMode = normalizeQueueMode(queueMode);\n const rawQueueSource =\n queueWgsl ??\n (await loadSchedulerWgslRaw({\n mode: resolvedQueueMode,\n url: queueUrl,\n fetcher,\n }));\n const bodyRaw = workerWgsl ?? (await loadWorkerWgsl({ fetcher }));\n const compatMap = queueCompat ? getQueueCompatMap(rawQueueSource) : null;\n const queueSource = ensureQueueLifecycleHooks(\n applyCompatMap(rawQueueSource, compatMap)\n );\n const preludeRaw =\n preludeWgsl ??\n (preludeUrl\n ? await loadWgslSource({ url: preludeUrl, fetcher, baseUrl: workerWgslUrl })\n : \"\");\n if ((preludeWgsl || preludeUrl) && typeof preludeRaw !== \"string\") {\n throw new Error(\"Failed to load prelude WGSL source.\");\n }\n const preludeSource =\n typeof preludeRaw === \"string\" && preludeRaw.length > 0\n ? applyCompatMap(preludeRaw, compatMap)\n : \"\";\n const body = applyCompatMap(bodyRaw, compatMap);\n const jobList = normalizeJobs(\n typeof jobs === \"undefined\" ? jobRegistry : jobs\n );\n if (!jobList || jobList.length === 0) {\n return `${queueSource}\\n\\n${body}`;\n }\n const rewrittenJobs = jobList.map((job) => {\n const source = applyCompatMap(job.wgsl, compatMap);\n const hasProcessJob = /\\bfn\\s+process_job\\b/.test(source);\n if (!hasProcessJob) {\n throw new Error(\n `Job ${job.sourceName} is missing a process_job() entry function.`\n );\n }\n const entryName = `process_job__${job.jobType}`;\n const renamed = renameProcessJob(source, entryName);\n return { ...job, entryName, wgsl: renamed };\n });\n const dispatch = buildProcessJobDispatch(rewrittenJobs);\n const modulesForDebug = debug\n ? [\n { name: \"queue.wgsl\", source: queueSource },\n ...(preludeSource\n ? [{ name: \"jobs.prelude.wgsl\", source: preludeSource }]\n : []),\n ...rewrittenJobs.map((job) => ({\n name: job.sourceName,\n source: job.wgsl,\n })),\n { name: \"jobs.dispatch.wgsl\", source: dispatch },\n { name: \"worker.wgsl\", source: body },\n ]\n : null;\n if (modulesForDebug) {\n assertNoNameClashes(modulesForDebug);\n }\n const jobBlocks = rewrittenJobs\n .map((job) => `// Job ${job.jobType}: ${job.label}\\n${job.wgsl}`)\n .join(\"\\n\\n\");\n const preludeBlock = preludeSource ? `${preludeSource}\\n\\n` : \"\";\n return `${queueSource}\\n\\n${preludeBlock}${jobBlocks}\\n\\n${dispatch}\\n\\n${body}`;\n}\n\nfunction normalizeWorkgroups(value, label) {\n if (typeof value === \"number\") {\n return [value, 1, 1];\n }\n if (Array.isArray(value)) {\n const [x = 0, y = 1, z = 1] = value;\n return [x, y, z];\n }\n throw new Error(`Invalid workgroup count for ${label}.`);\n}\n\nfunction resolveWorkgroups(value, label) {\n if (typeof value === \"function\") {\n return normalizeWorkgroups(value(), label);\n }\n if (value == null) {\n return null;\n }\n return normalizeWorkgroups(value, label);\n}\n\nfunction normalizeTelemetryText(value, fallback) {\n if (typeof value !== \"string\") {\n return fallback;\n }\n const trimmed = value.trim();\n return trimmed ? trimmed.slice(0, 120) : fallback;\n}\n\nfunction resolveFrameId(value) {\n if (typeof value === \"function\") {\n return resolveFrameId(value());\n }\n if (typeof value !== \"string\") {\n return undefined;\n }\n const trimmed = value.trim();\n return trimmed ? trimmed.slice(0, 120) : undefined;\n}\n\nfunction toVector(workgroups) {\n return { x: workgroups[0], y: workgroups[1], z: workgroups[2] };\n}\n\nfunction resolveTelemetryWorkgroupSize(descriptor, fallback, label) {\n const size =\n descriptor?.workgroupSize == null ? fallback : descriptor.workgroupSize;\n if (size == null) {\n return undefined;\n }\n const normalized =\n typeof size === \"number\" ? normalizeWorkgroups(size, label) : resolveWorkgroups(size, label);\n if (!normalized) {\n return undefined;\n }\n return toVector(normalized);\n}\n\nfunction getNow() {\n if (globalThis.performance && typeof globalThis.performance.now === \"function\") {\n return globalThis.performance.now();\n }\n return Date.now();\n}\n\nfunction reportOptionalError(error, onError) {\n if (!onError) {\n return;\n }\n if (error instanceof Error) {\n onError(error);\n return;\n }\n onError(new Error(String(error)));\n}\n\nfunction emitOptionalHook(callback, payload, onError) {\n if (typeof callback !== \"function\") {\n return;\n }\n try {\n callback(payload);\n } catch (error) {\n reportOptionalError(error, onError);\n }\n}\n\nfunction buildDispatchTelemetrySample({\n kind,\n descriptor,\n index,\n frameId,\n workgroups,\n workgroupSize,\n}) {\n const labelFallback = kind === \"worker\" ? \"worker\" : `job_${index}`;\n const label = normalizeTelemetryText(descriptor?.label, labelFallback);\n return {\n kind,\n index,\n label,\n owner: normalizeTelemetryText(descriptor?.owner, label),\n queueClass: normalizeTelemetryText(descriptor?.queueClass, \"custom\"),\n jobType: normalizeTelemetryText(\n descriptor?.jobType,\n kind === \"worker\" ? \"worker.dispatch\" : label\n ),\n frameId,\n workgroups: toVector(workgroups),\n workgroupSize,\n };\n}\n\nfunction setBindGroups(pass, bindGroups) {\n if (!bindGroups) {\n return;\n }\n bindGroups.forEach((group, index) => {\n if (group) {\n pass.setBindGroup(index, group);\n }\n });\n}\n\nfunction computeWorkerWorkgroups(maxJobs, workgroupSize) {\n const jobs =\n typeof maxJobs === \"function\" ? Number(maxJobs()) : Number(maxJobs);\n if (!Number.isFinite(jobs) || jobs <= 0) {\n throw new Error(\"maxJobsPerDispatch must be a positive number.\");\n }\n const size = Number(workgroupSize);\n if (!Number.isFinite(size) || size <= 0) {\n throw new Error(\"workgroupSize must be a positive number.\");\n }\n return Math.max(1, Math.ceil(jobs / size));\n}\n\nexport function createWorkerLoop(options = {}) {\n const {\n device,\n worker,\n jobs = [],\n workgroupSize = 64,\n maxJobsPerDispatch,\n rateHz,\n label,\n onTick,\n onError,\n frameId,\n telemetry,\n } = options ?? {};\n\n if (!device) {\n throw new Error(\"createWorkerLoop requires a GPUDevice.\");\n }\n if (!worker || !worker.pipeline) {\n throw new Error(\"createWorkerLoop requires a worker pipeline.\");\n }\n\n let running = false;\n let handle = null;\n let usingRaf = false;\n const intervalMs =\n Number.isFinite(rateHz) && rateHz > 0 ? 1000 / rateHz : null;\n\n const tick = () => {\n try {\n const tickStartMs = getNow();\n const currentFrameId = resolveFrameId(frameId);\n const telemetryDispatches = [];\n const encoder = device.createCommandEncoder();\n const pass = encoder.beginComputePass(\n label ? { label } : undefined\n );\n\n pass.setPipeline(worker.pipeline);\n setBindGroups(pass, worker.bindGroups);\n\n const explicitWorkerGroups =\n resolveWorkgroups(worker.workgroups, \"worker\") ??\n resolveWorkgroups(worker.workgroupCount, \"worker\") ??\n resolveWorkgroups(worker.dispatch, \"worker\");\n\n const workerGroups = explicitWorkerGroups\n ? explicitWorkerGroups\n : [computeWorkerWorkgroups(maxJobsPerDispatch, workgroupSize), 1, 1];\n\n if (workerGroups[0] > 0) {\n pass.dispatchWorkgroups(...workerGroups);\n telemetryDispatches.push(\n buildDispatchTelemetrySample({\n kind: \"worker\",\n descriptor: worker,\n index: 0,\n frameId: currentFrameId,\n workgroups: workerGroups,\n workgroupSize: resolveTelemetryWorkgroupSize(\n worker,\n workgroupSize,\n \"worker workgroupSize\"\n ),\n })\n );\n }\n\n jobs.forEach((job, index) => {\n if (!job || !job.pipeline) {\n throw new Error(`Job pipeline missing at index ${index}.`);\n }\n pass.setPipeline(job.pipeline);\n setBindGroups(pass, job.bindGroups);\n const groups = resolveWorkgroups(\n job.workgroups ?? job.workgroupCount ?? job.dispatch,\n `job ${index}`\n );\n if (!groups) {\n throw new Error(`Job ${index} requires a workgroup count.`);\n }\n if (groups[0] > 0) {\n pass.dispatchWorkgroups(...groups);\n telemetryDispatches.push(\n buildDispatchTelemetrySample({\n kind: \"job\",\n descriptor: job,\n index,\n frameId: currentFrameId,\n workgroups: groups,\n workgroupSize: resolveTelemetryWorkgroupSize(\n job,\n undefined,\n `job ${index} workgroupSize`\n ),\n })\n );\n }\n });\n\n pass.end();\n device.queue.submit([encoder.finish()]);\n\n telemetryDispatches.forEach((sample) => {\n emitOptionalHook(telemetry?.onDispatch, sample, onError);\n });\n emitOptionalHook(\n telemetry?.onTick,\n {\n frameId: currentFrameId,\n tickDurationMs: getNow() - tickStartMs,\n dispatchCount: telemetryDispatches.length,\n workerDispatchCount: telemetryDispatches.filter(\n (sample) => sample.kind === \"worker\"\n ).length,\n jobDispatchCount: telemetryDispatches.filter(\n (sample) => sample.kind === \"job\"\n ).length,\n dispatches: telemetryDispatches,\n },\n onError\n );\n\n if (onTick) {\n onTick();\n }\n } catch (err) {\n if (onError) {\n onError(err);\n return;\n }\n throw err;\n }\n };\n\n const scheduleNext = () => {\n if (!running) {\n return;\n }\n if (intervalMs != null) {\n tick();\n usingRaf = false;\n handle = setTimeout(scheduleNext, intervalMs);\n return;\n }\n tick();\n if (typeof requestAnimationFrame === \"function\") {\n usingRaf = true;\n handle = requestAnimationFrame(scheduleNext);\n } else {\n usingRaf = false;\n handle = setTimeout(scheduleNext, 0);\n }\n };\n\n const start = () => {\n if (running) {\n return;\n }\n running = true;\n scheduleNext();\n };\n\n const stop = () => {\n running = false;\n if (handle == null) {\n return;\n }\n if (usingRaf && typeof cancelAnimationFrame === \"function\") {\n cancelAnimationFrame(handle);\n } else {\n clearTimeout(handle);\n }\n handle = null;\n };\n\n return {\n start,\n stop,\n tick,\n get running() {\n return running;\n },\n };\n}\n\nexport const scenePreparationRepresentationBands = Object.freeze([\n \"near\",\n \"mid\",\n \"far\",\n \"horizon\",\n]);\n\nexport const scenePreparationStageFamilies = Object.freeze([\n \"snapshotSelection\",\n \"transformPropagation\",\n \"animationPose\",\n \"proceduralAnimation\",\n \"skinningOrDeformation\",\n \"boundsUpdate\",\n \"lodSelection\",\n \"rtRepresentationSelection\",\n \"visibility\",\n \"lightAssignment\",\n \"renderProxyBuild\",\n \"rtInstancePreparation\",\n]);\n\nconst scenePreparationDefaultStageDependencies = Object.freeze({\n snapshotSelection: Object.freeze([]),\n transformPropagation: Object.freeze([\"snapshotSelection\"]),\n animationPose: Object.freeze([\"transformPropagation\"]),\n proceduralAnimation: Object.freeze([\"animationPose\"]),\n skinningOrDeformation: Object.freeze([\n \"animationPose\",\n \"proceduralAnimation\",\n ]),\n boundsUpdate: Object.freeze([\"skinningOrDeformation\"]),\n lodSelection: Object.freeze([\"boundsUpdate\"]),\n rtRepresentationSelection: Object.freeze([\"lodSelection\"]),\n visibility: Object.freeze([\"boundsUpdate\", \"lodSelection\"]),\n lightAssignment: Object.freeze([\"visibility\"]),\n renderProxyBuild: Object.freeze([\"visibility\", \"lodSelection\"]),\n rtInstancePreparation: Object.freeze([\n \"visibility\",\n \"rtRepresentationSelection\",\n ]),\n});\n\nconst scenePreparationBandPriorityWeights = Object.freeze({\n near: 400,\n mid: 300,\n far: 200,\n horizon: 100,\n});\n\nconst scenePreparationImportanceWeights = Object.freeze({\n low: 0,\n medium: 15,\n high: 30,\n critical: 60,\n});\n\nconst scenePreparationStagePriorityWeights = Object.freeze({\n snapshotSelection: 60,\n transformPropagation: 54,\n animationPose: 50,\n proceduralAnimation: 46,\n skinningOrDeformation: 42,\n boundsUpdate: 38,\n lodSelection: 32,\n rtRepresentationSelection: 28,\n visibility: 34,\n lightAssignment: 24,\n renderProxyBuild: 22,\n rtInstancePreparation: 26,\n});\n\nfunction assertScenePreparationIdentifier(name, value) {\n if (typeof value !== \"string\" || value.trim().length === 0) {\n throw new Error(`${name} must be a non-empty string.`);\n }\n return value.trim();\n}\n\nfunction assertScenePreparationEnum(name, value, allowed) {\n const normalized = assertScenePreparationIdentifier(name, value);\n if (!allowed.includes(normalized)) {\n throw new Error(`${name} must be one of: ${allowed.join(\", \")}.`);\n }\n return normalized;\n}\n\nfunction normalizeScenePreparationStages(stages, chunkLabel) {\n const requested =\n stages === undefined ? scenePreparationStageFamilies : stages;\n if (!Array.isArray(requested) || requested.length === 0) {\n throw new Error(`${chunkLabel}.stages must be a non-empty array when provided.`);\n }\n\n const normalized = [...new Set(\n requested.map((stage, index) =>\n assertScenePreparationEnum(\n `${chunkLabel}.stages[${index}]`,\n stage,\n scenePreparationStageFamilies\n )\n )\n )];\n\n return normalized.sort(\n (left, right) =>\n scenePreparationStageFamilies.indexOf(left) -\n scenePreparationStageFamilies.indexOf(right)\n );\n}\n\nfunction collectScenePreparationDependencies(\n stageFamily,\n includedStages,\n seen = new Set()\n) {\n const dependencies =\n scenePreparationDefaultStageDependencies[stageFamily] ?? [];\n for (const dependency of dependencies) {\n if (includedStages.has(dependency)) {\n seen.add(dependency);\n continue;\n }\n collectScenePreparationDependencies(dependency, includedStages, seen);\n }\n return [...seen].sort(\n (left, right) =>\n scenePreparationStageFamilies.indexOf(left) -\n scenePreparationStageFamilies.indexOf(right)\n );\n}\n\nfunction buildScenePreparationPriority(chunk, stageFamily) {\n const bandWeight =\n scenePreparationBandPriorityWeights[chunk.representationBand] ?? 0;\n const importanceWeight =\n scenePreparationImportanceWeights[chunk.gameplayImportance] ?? 0;\n const stageWeight =\n scenePreparationStagePriorityWeights[stageFamily] ?? 0;\n\n return (\n bandWeight +\n importanceWeight +\n stageWeight +\n (chunk.visible ? 20 : 0) +\n (chunk.playerRelevant ? 20 : 0) +\n (chunk.imageCritical ? 15 : 0)\n );\n}\n\nfunction buildScenePreparationPriorityLanes(jobs) {\n const lanes = new Map();\n for (const job of jobs) {\n const lane = lanes.get(job.priority) ?? {\n priority: job.priority,\n jobIds: [],\n chunkIds: [],\n };\n lane.jobIds.push(job.id);\n if (!lane.chunkIds.includes(job.chunkId)) {\n lane.chunkIds.push(job.chunkId);\n }\n lanes.set(job.priority, lane);\n }\n\n return Object.freeze(\n [...lanes.values()]\n .sort((left, right) => right.priority - left.priority)\n .map((lane) =>\n Object.freeze({\n priority: lane.priority,\n jobIds: Object.freeze([...lane.jobIds]),\n chunkIds: Object.freeze([...lane.chunkIds]),\n jobCount: lane.jobIds.length,\n })\n )\n );\n}\n\nfunction buildScenePreparationTopologicalOrder(jobs) {\n const indegree = new Map(jobs.map((job) => [job.id, job.dependencies.length]));\n const dependentsById = new Map(jobs.map((job) => [job.id, []]));\n\n for (const job of jobs) {\n for (const dependency of job.dependencies) {\n dependentsById.get(dependency)?.push(job.id);\n }\n }\n\n const queue = jobs\n .filter((job) => job.dependencies.length === 0)\n .sort((left, right) => right.priority - left.priority)\n .map((job) => job.id);\n const jobById = new Map(jobs.map((job) => [job.id, job]));\n const order = [];\n\n while (queue.length > 0) {\n const currentId = queue.shift();\n if (!currentId) {\n continue;\n }\n order.push(currentId);\n const unlocked = [];\n for (const dependentId of dependentsById.get(currentId) ?? []) {\n const next = (indegree.get(dependentId) ?? 0) - 1;\n indegree.set(dependentId, next);\n if (next === 0) {\n unlocked.push(dependentId);\n }\n }\n unlocked\n .sort(\n (left, right) =>\n (jobById.get(right)?.priority ?? 0) -\n (jobById.get(left)?.priority ?? 0)\n )\n .forEach((jobId) => {\n queue.push(jobId);\n });\n }\n\n if (order.length !== jobs.length) {\n throw new Error(\"Scene-preparation manifest contains a cycle.\");\n }\n\n return Object.freeze(order);\n}\n\nexport function createScenePreparationManifest(options = {}) {\n const snapshotId = assertScenePreparationIdentifier(\n \"snapshotId\",\n options.snapshotId\n );\n const chunkEntries = Array.isArray(options.chunks) ? options.chunks : [];\n if (chunkEntries.length === 0) {\n throw new Error(\"createScenePreparationManifest requires at least one chunk.\");\n }\n\n const normalizedChunks = chunkEntries.map((chunk, index) => {\n if (!chunk || typeof chunk !== \"object\" || Array.isArray(chunk)) {\n throw new Error(`chunks[${index}] must be an object.`);\n }\n const chunkLabel = `chunks[${index}]`;\n if (chunk.mutatesSimulation === true) {\n throw new Error(\n `${chunkLabel}.mutatesSimulation cannot be true for render preparation.`\n );\n }\n\n return Object.freeze({\n chunkId: assertScenePreparationIdentifier(`${chunkLabel}.chunkId`, chunk.chunkId),\n representationBand: assertScenePreparationEnum(\n `${chunkLabel}.representationBand`,\n chunk.representationBand ?? \"mid\",\n scenePreparationRepresentationBands\n ),\n gameplayImportance: assertScenePreparationEnum(\n `${chunkLabel}.gameplayImportance`,\n chunk.gameplayImportance ?? \"medium\",\n Object.keys(scenePreparationImportanceWeights)\n ),\n visible: chunk.visible !== false,\n playerRelevant: chunk.playerRelevant === true,\n imageCritical: chunk.imageCritical === true,\n stages: normalizeScenePreparationStages(chunk.stages, chunkLabel),\n });\n });\n\n const chunkIds = new Set();\n for (const chunk of normalizedChunks) {\n if (chunkIds.has(chunk.chunkId)) {\n throw new Error(`Duplicate scene-preparation chunk id detected: ${chunk.chunkId}`);\n }\n chunkIds.add(chunk.chunkId);\n }\n\n const jobs = [];\n for (const chunk of normalizedChunks) {\n const includedStages = new Set(chunk.stages);\n for (const stageFamily of chunk.stages) {\n const dependencies = collectScenePreparationDependencies(\n stageFamily,\n includedStages\n ).map(\n (dependency) =>\n `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${dependency}`\n );\n\n jobs.push(\n Object.freeze({\n id: `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${stageFamily}`,\n snapshotId,\n chunkId: chunk.chunkId,\n representationBand: chunk.representationBand,\n stageFamily,\n priority: buildScenePreparationPriority(chunk, stageFamily),\n dependencies: Object.freeze(dependencies),\n dependencyCount: dependencies.length,\n root: dependencies.length === 0,\n authority: \"visual\",\n mutatesSimulation: false,\n gameplayImportance: chunk.gameplayImportance,\n visible: chunk.visible,\n playerRelevant: chunk.playerRelevant,\n imageCritical: chunk.imageCritical,\n })\n );\n }\n }\n\n const jobById = new Map(jobs.map((job) => [job.id, job]));\n let crossChunkDependencyCount = 0;\n let localJoinCount = 0;\n\n const finalizedJobs = Object.freeze(\n jobs.map((job) => {\n const dependents = jobs\n .filter((candidate) => candidate.dependencies.includes(job.id))\n .map((candidate) => candidate.id);\n const crossChunkDependencies = job.dependencies.filter((dependency) => {\n const parent = jobById.get(dependency);\n return parent && parent.chunkId !== job.chunkId;\n });\n crossChunkDependencyCount += crossChunkDependencies.length;\n if (\n job.dependencies.length > 1 &&\n crossChunkDependencies.length === 0\n ) {\n localJoinCount += 1;\n }\n\n return Object.freeze({\n ...job,\n dependents: Object.freeze(dependents),\n dependentCount: dependents.length,\n unresolvedDependencyCount: job.dependencies.length,\n localJoin:\n 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|
+1
-1
| { | ||
| "name": "@plasius/gpu-worker", | ||
| "version": "0.1.10", | ||
| "version": "0.1.11", | ||
| "description": "WebGPU worker runtime with a lock-free job queue for WGSL workloads.", | ||
@@ -5,0 +5,0 @@ "type": "module", |
+33
-0
@@ -161,2 +161,35 @@ # @plasius/gpu-worker | ||
| `@plasius/gpu-worker` also now exposes a scene-preparation manifest helper for | ||
| snapshot-driven chunk DAG planning: | ||
| ```js | ||
| import { createScenePreparationManifest } from "@plasius/gpu-worker"; | ||
| const manifest = createScenePreparationManifest({ | ||
| snapshotId: "visual-snapshot-42", | ||
| chunks: [ | ||
| { | ||
| chunkId: "chunk-near-0", | ||
| representationBand: "near", | ||
| gameplayImportance: "critical", | ||
| visible: true, | ||
| playerRelevant: true, | ||
| }, | ||
| { | ||
| chunkId: "chunk-far-3", | ||
| representationBand: "far", | ||
| gameplayImportance: "medium", | ||
| visible: false, | ||
| }, | ||
| ], | ||
| }); | ||
| console.log(manifest.graph.chunkRoots); | ||
| console.log(manifest.graph.priorityLanes[0]); | ||
| ``` | ||
| The helper publishes one chunk-local DAG per stable snapshot, keeps joins local | ||
| to chunk stage boundaries, and rejects render-preparation manifests that try to | ||
| mutate authoritative simulation state. | ||
| ## What this is | ||
@@ -163,0 +196,0 @@ - A minimal GPU worker layer that combines a lock-free queue with user WGSL jobs. |
+379
-0
@@ -730,1 +730,380 @@ import { | ||
| } | ||
| export const scenePreparationRepresentationBands = Object.freeze([ | ||
| "near", | ||
| "mid", | ||
| "far", | ||
| "horizon", | ||
| ]); | ||
| export const scenePreparationStageFamilies = Object.freeze([ | ||
| "snapshotSelection", | ||
| "transformPropagation", | ||
| "animationPose", | ||
| "proceduralAnimation", | ||
| "skinningOrDeformation", | ||
| "boundsUpdate", | ||
| "lodSelection", | ||
| "rtRepresentationSelection", | ||
| "visibility", | ||
| "lightAssignment", | ||
| "renderProxyBuild", | ||
| "rtInstancePreparation", | ||
| ]); | ||
| const scenePreparationDefaultStageDependencies = Object.freeze({ | ||
| snapshotSelection: Object.freeze([]), | ||
| transformPropagation: Object.freeze(["snapshotSelection"]), | ||
| animationPose: Object.freeze(["transformPropagation"]), | ||
| proceduralAnimation: Object.freeze(["animationPose"]), | ||
| skinningOrDeformation: Object.freeze([ | ||
| "animationPose", | ||
| "proceduralAnimation", | ||
| ]), | ||
| boundsUpdate: Object.freeze(["skinningOrDeformation"]), | ||
| lodSelection: Object.freeze(["boundsUpdate"]), | ||
| rtRepresentationSelection: Object.freeze(["lodSelection"]), | ||
| visibility: Object.freeze(["boundsUpdate", "lodSelection"]), | ||
| lightAssignment: Object.freeze(["visibility"]), | ||
| renderProxyBuild: Object.freeze(["visibility", "lodSelection"]), | ||
| rtInstancePreparation: Object.freeze([ | ||
| "visibility", | ||
| "rtRepresentationSelection", | ||
| ]), | ||
| }); | ||
| const scenePreparationBandPriorityWeights = Object.freeze({ | ||
| near: 400, | ||
| mid: 300, | ||
| far: 200, | ||
| horizon: 100, | ||
| }); | ||
| const scenePreparationImportanceWeights = Object.freeze({ | ||
| low: 0, | ||
| medium: 15, | ||
| high: 30, | ||
| critical: 60, | ||
| }); | ||
| const scenePreparationStagePriorityWeights = Object.freeze({ | ||
| snapshotSelection: 60, | ||
| transformPropagation: 54, | ||
| animationPose: 50, | ||
| proceduralAnimation: 46, | ||
| skinningOrDeformation: 42, | ||
| boundsUpdate: 38, | ||
| lodSelection: 32, | ||
| rtRepresentationSelection: 28, | ||
| visibility: 34, | ||
| lightAssignment: 24, | ||
| renderProxyBuild: 22, | ||
| rtInstancePreparation: 26, | ||
| }); | ||
| function assertScenePreparationIdentifier(name, value) { | ||
| if (typeof value !== "string" || value.trim().length === 0) { | ||
| throw new Error(`${name} must be a non-empty string.`); | ||
| } | ||
| return value.trim(); | ||
| } | ||
| function assertScenePreparationEnum(name, value, allowed) { | ||
| const normalized = assertScenePreparationIdentifier(name, value); | ||
| if (!allowed.includes(normalized)) { | ||
| throw new Error(`${name} must be one of: ${allowed.join(", ")}.`); | ||
| } | ||
| return normalized; | ||
| } | ||
| function normalizeScenePreparationStages(stages, chunkLabel) { | ||
| const requested = | ||
| stages === undefined ? scenePreparationStageFamilies : stages; | ||
| if (!Array.isArray(requested) || requested.length === 0) { | ||
| throw new Error(`${chunkLabel}.stages must be a non-empty array when provided.`); | ||
| } | ||
| const normalized = [...new Set( | ||
| requested.map((stage, index) => | ||
| assertScenePreparationEnum( | ||
| `${chunkLabel}.stages[${index}]`, | ||
| stage, | ||
| scenePreparationStageFamilies | ||
| ) | ||
| ) | ||
| )]; | ||
| return normalized.sort( | ||
| (left, right) => | ||
| scenePreparationStageFamilies.indexOf(left) - | ||
| scenePreparationStageFamilies.indexOf(right) | ||
| ); | ||
| } | ||
| function collectScenePreparationDependencies( | ||
| stageFamily, | ||
| includedStages, | ||
| seen = new Set() | ||
| ) { | ||
| const dependencies = | ||
| scenePreparationDefaultStageDependencies[stageFamily] ?? []; | ||
| for (const dependency of dependencies) { | ||
| if (includedStages.has(dependency)) { | ||
| seen.add(dependency); | ||
| continue; | ||
| } | ||
| collectScenePreparationDependencies(dependency, includedStages, seen); | ||
| } | ||
| return [...seen].sort( | ||
| (left, right) => | ||
| scenePreparationStageFamilies.indexOf(left) - | ||
| scenePreparationStageFamilies.indexOf(right) | ||
| ); | ||
| } | ||
| function buildScenePreparationPriority(chunk, stageFamily) { | ||
| const bandWeight = | ||
| scenePreparationBandPriorityWeights[chunk.representationBand] ?? 0; | ||
| const importanceWeight = | ||
| scenePreparationImportanceWeights[chunk.gameplayImportance] ?? 0; | ||
| const stageWeight = | ||
| scenePreparationStagePriorityWeights[stageFamily] ?? 0; | ||
| return ( | ||
| bandWeight + | ||
| importanceWeight + | ||
| stageWeight + | ||
| (chunk.visible ? 20 : 0) + | ||
| (chunk.playerRelevant ? 20 : 0) + | ||
| (chunk.imageCritical ? 15 : 0) | ||
| ); | ||
| } | ||
| function buildScenePreparationPriorityLanes(jobs) { | ||
| const lanes = new Map(); | ||
| for (const job of jobs) { | ||
| const lane = lanes.get(job.priority) ?? { | ||
| priority: job.priority, | ||
| jobIds: [], | ||
| chunkIds: [], | ||
| }; | ||
| lane.jobIds.push(job.id); | ||
| if (!lane.chunkIds.includes(job.chunkId)) { | ||
| lane.chunkIds.push(job.chunkId); | ||
| } | ||
| lanes.set(job.priority, lane); | ||
| } | ||
| return Object.freeze( | ||
| [...lanes.values()] | ||
| .sort((left, right) => right.priority - left.priority) | ||
| .map((lane) => | ||
| Object.freeze({ | ||
| priority: lane.priority, | ||
| jobIds: Object.freeze([...lane.jobIds]), | ||
| chunkIds: Object.freeze([...lane.chunkIds]), | ||
| jobCount: lane.jobIds.length, | ||
| }) | ||
| ) | ||
| ); | ||
| } | ||
| function buildScenePreparationTopologicalOrder(jobs) { | ||
| const indegree = new Map(jobs.map((job) => [job.id, job.dependencies.length])); | ||
| const dependentsById = new Map(jobs.map((job) => [job.id, []])); | ||
| for (const job of jobs) { | ||
| for (const dependency of job.dependencies) { | ||
| dependentsById.get(dependency)?.push(job.id); | ||
| } | ||
| } | ||
| const queue = jobs | ||
| .filter((job) => job.dependencies.length === 0) | ||
| .sort((left, right) => right.priority - left.priority) | ||
| .map((job) => job.id); | ||
| const jobById = new Map(jobs.map((job) => [job.id, job])); | ||
| const order = []; | ||
| while (queue.length > 0) { | ||
| const currentId = queue.shift(); | ||
| if (!currentId) { | ||
| continue; | ||
| } | ||
| order.push(currentId); | ||
| const unlocked = []; | ||
| for (const dependentId of dependentsById.get(currentId) ?? []) { | ||
| const next = (indegree.get(dependentId) ?? 0) - 1; | ||
| indegree.set(dependentId, next); | ||
| if (next === 0) { | ||
| unlocked.push(dependentId); | ||
| } | ||
| } | ||
| unlocked | ||
| .sort( | ||
| (left, right) => | ||
| (jobById.get(right)?.priority ?? 0) - | ||
| (jobById.get(left)?.priority ?? 0) | ||
| ) | ||
| .forEach((jobId) => { | ||
| queue.push(jobId); | ||
| }); | ||
| } | ||
| if (order.length !== jobs.length) { | ||
| throw new Error("Scene-preparation manifest contains a cycle."); | ||
| } | ||
| return Object.freeze(order); | ||
| } | ||
| export function createScenePreparationManifest(options = {}) { | ||
| const snapshotId = assertScenePreparationIdentifier( | ||
| "snapshotId", | ||
| options.snapshotId | ||
| ); | ||
| const chunkEntries = Array.isArray(options.chunks) ? options.chunks : []; | ||
| if (chunkEntries.length === 0) { | ||
| throw new Error("createScenePreparationManifest requires at least one chunk."); | ||
| } | ||
| const normalizedChunks = chunkEntries.map((chunk, index) => { | ||
| if (!chunk || typeof chunk !== "object" || Array.isArray(chunk)) { | ||
| throw new Error(`chunks[${index}] must be an object.`); | ||
| } | ||
| const chunkLabel = `chunks[${index}]`; | ||
| if (chunk.mutatesSimulation === true) { | ||
| throw new Error( | ||
| `${chunkLabel}.mutatesSimulation cannot be true for render preparation.` | ||
| ); | ||
| } | ||
| return Object.freeze({ | ||
| chunkId: assertScenePreparationIdentifier(`${chunkLabel}.chunkId`, chunk.chunkId), | ||
| representationBand: assertScenePreparationEnum( | ||
| `${chunkLabel}.representationBand`, | ||
| chunk.representationBand ?? "mid", | ||
| scenePreparationRepresentationBands | ||
| ), | ||
| gameplayImportance: assertScenePreparationEnum( | ||
| `${chunkLabel}.gameplayImportance`, | ||
| chunk.gameplayImportance ?? "medium", | ||
| Object.keys(scenePreparationImportanceWeights) | ||
| ), | ||
| visible: chunk.visible !== false, | ||
| playerRelevant: chunk.playerRelevant === true, | ||
| imageCritical: chunk.imageCritical === true, | ||
| stages: normalizeScenePreparationStages(chunk.stages, chunkLabel), | ||
| }); | ||
| }); | ||
| const chunkIds = new Set(); | ||
| for (const chunk of normalizedChunks) { | ||
| if (chunkIds.has(chunk.chunkId)) { | ||
| throw new Error(`Duplicate scene-preparation chunk id detected: ${chunk.chunkId}`); | ||
| } | ||
| chunkIds.add(chunk.chunkId); | ||
| } | ||
| const jobs = []; | ||
| for (const chunk of normalizedChunks) { | ||
| const includedStages = new Set(chunk.stages); | ||
| for (const stageFamily of chunk.stages) { | ||
| const dependencies = collectScenePreparationDependencies( | ||
| stageFamily, | ||
| includedStages | ||
| ).map( | ||
| (dependency) => | ||
| `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${dependency}` | ||
| ); | ||
| jobs.push( | ||
| Object.freeze({ | ||
| id: `${snapshotId}:${chunk.chunkId}:${chunk.representationBand}:${stageFamily}`, | ||
| snapshotId, | ||
| chunkId: chunk.chunkId, | ||
| representationBand: chunk.representationBand, | ||
| stageFamily, | ||
| priority: buildScenePreparationPriority(chunk, stageFamily), | ||
| dependencies: Object.freeze(dependencies), | ||
| dependencyCount: dependencies.length, | ||
| root: dependencies.length === 0, | ||
| authority: "visual", | ||
| mutatesSimulation: false, | ||
| gameplayImportance: chunk.gameplayImportance, | ||
| visible: chunk.visible, | ||
| playerRelevant: chunk.playerRelevant, | ||
| imageCritical: chunk.imageCritical, | ||
| }) | ||
| ); | ||
| } | ||
| } | ||
| const jobById = new Map(jobs.map((job) => [job.id, job])); | ||
| let crossChunkDependencyCount = 0; | ||
| let localJoinCount = 0; | ||
| const finalizedJobs = Object.freeze( | ||
| jobs.map((job) => { | ||
| const dependents = jobs | ||
| .filter((candidate) => candidate.dependencies.includes(job.id)) | ||
| .map((candidate) => candidate.id); | ||
| const crossChunkDependencies = job.dependencies.filter((dependency) => { | ||
| const parent = jobById.get(dependency); | ||
| return parent && parent.chunkId !== job.chunkId; | ||
| }); | ||
| crossChunkDependencyCount += crossChunkDependencies.length; | ||
| if ( | ||
| job.dependencies.length > 1 && | ||
| crossChunkDependencies.length === 0 | ||
| ) { | ||
| localJoinCount += 1; | ||
| } | ||
| return Object.freeze({ | ||
| ...job, | ||
| dependents: Object.freeze(dependents), | ||
| dependentCount: dependents.length, | ||
| unresolvedDependencyCount: job.dependencies.length, | ||
| localJoin: | ||
| job.dependencies.length > 1 && crossChunkDependencies.length === 0, | ||
| }); | ||
| }) | ||
| ); | ||
| const graph = Object.freeze({ | ||
| schedulerMode: "dag", | ||
| jobCount: finalizedJobs.length, | ||
| chunkCount: normalizedChunks.length, | ||
| chunkIds: Object.freeze(normalizedChunks.map((chunk) => chunk.chunkId)), | ||
| representationBands: Object.freeze( | ||
| [...new Set(normalizedChunks.map((chunk) => chunk.representationBand))] | ||
| ), | ||
| roots: Object.freeze( | ||
| finalizedJobs.filter((job) => job.root).map((job) => job.id) | ||
| ), | ||
| chunkRoots: Object.freeze( | ||
| Object.fromEntries( | ||
| normalizedChunks.map((chunk) => [ | ||
| chunk.chunkId, | ||
| finalizedJobs | ||
| .filter((job) => job.chunkId === chunk.chunkId && job.root) | ||
| .map((job) => job.id), | ||
| ]) | ||
| ) | ||
| ), | ||
| topologicalOrder: buildScenePreparationTopologicalOrder(finalizedJobs), | ||
| priorityLanes: buildScenePreparationPriorityLanes(finalizedJobs), | ||
| localJoinCount, | ||
| crossChunkDependencyCount, | ||
| }); | ||
| return Object.freeze({ | ||
| schemaVersion: 1, | ||
| owner: "scene-preparation", | ||
| schedulerMode: "dag", | ||
| snapshotId, | ||
| jobs: finalizedJobs, | ||
| graph, | ||
| }); | ||
| } |
No alert changes
Improved metrics
- Total package byte prevSize
245617
43.04%- Lines of code
3015
47.5%- Number of lines in readme file
298
12.45%No dependency changes