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Vance Ingalls
92bccfdf78
## Summary PR 2 of 5 in the hf#732 decomposition stack. Adds a `worker_threads`-based pool that offloads PNG decode + alpha-blit onto a fixed-size pool. **No production wiring yet** — the pool stands alone and ships behind a later PR in the stack. ### New files - `packages/producer/src/services/pngDecodeBlitWorker.ts` — worker entry. Imports from `@hyperframes/engine/alpha-blit` (zero-import TS source, survives the `new Worker(<path>)` loader boundary). - `packages/producer/src/services/pngDecodeBlitWorkerPool.ts` — fixed-size pool with `run()` API. Uses `transferList` for buffer ownership transfer (no 16bpc HDR buffer copies). - `packages/producer/src/services/pngDecodeBlitWorkerPool.test.ts` — 6 vitest tests pinning byte-equivalence with inline path, transferList correctness, concurrent dispatch, termination semantics. All pass. ### Build wiring - `packages/cli/tsup.config.ts`: second tsup entry emits `dist/pngDecodeBlitWorker.js` next to `dist/cli.js`. Without this entry the pool's `new Worker(<path>)` would fail at runtime in the shipped CLI. - `packages/producer/build.mjs`: third esbuild entry mirrors the wiring for direct producer consumers. - `packages/engine/package.json`: adds `./alpha-blit` subpath export pointing at `src/utils/alphaBlit.ts`. ## Stack Stacked on top of #756 (PR 1: worker-count cap). No behavior change in any render. ## Test plan - [x] 6 pool tests pass - [x] Producer + engine typecheck clean - [x] oxlint clean — Vai
79 lines
2.5 KiB
TypeScript
79 lines
2.5 KiB
TypeScript
import { defineConfig } from "tsup";
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import { resolve } from "node:path";
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import { readFileSync } from "node:fs";
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const pkg = JSON.parse(readFileSync(new URL("./package.json", import.meta.url), "utf-8")) as {
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version: string;
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};
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export default defineConfig({
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// hf#732 lever-4: emit BOTH the CLI bundle and the PNG decode + alpha-blit
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// worker entry. The producer's `pngDecodeBlitWorkerPool` instantiates a
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// Node `worker_threads` Worker via `new Worker(<path>)`, which is a
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// filesystem load — it cannot share the parent module graph. The pool's
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// path resolver probes for `pngDecodeBlitWorker.js` next to its own loaded
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// module (which lives inside `dist/cli.js` after the producer is
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// `noExternal`'d and bundled in). Without this entry the file would not
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// exist at runtime and the pool would either crash or silently fall back
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// to inline decode/blit, killing the perf gain.
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entry: {
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cli: "src/cli.ts",
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pngDecodeBlitWorker: "../producer/src/services/pngDecodeBlitWorker.ts",
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},
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format: ["esm"],
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outDir: "dist",
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target: "node22",
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platform: "node",
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bundle: true,
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splitting: false,
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sourcemap: false,
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clean: true,
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banner: {
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js: `import { createRequire as __hf_createRequire } from "node:module";
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import { fileURLToPath as __hf_fileURLToPath } from "node:url";
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import { dirname as __hf_dirname } from "node:path";
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var require = __hf_createRequire(import.meta.url);
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var __filename = __hf_fileURLToPath(import.meta.url);
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var __dirname = __hf_dirname(__filename);`,
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},
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external: [
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"puppeteer-core",
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"puppeteer",
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"@puppeteer/browsers",
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"open",
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"hono",
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"hono/*",
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"@hono/node-server",
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"mime-types",
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"adm-zip",
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"esbuild",
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"giget",
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"postcss",
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],
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noExternal: [
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"@hyperframes/core",
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"@hyperframes/producer",
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"@hyperframes/engine",
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"@clack/prompts",
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"@clack/core",
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"picocolors",
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"linkedom",
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"sisteransi",
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"is-unicode-supported",
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"citty",
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],
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define: {
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__CLI_VERSION__: JSON.stringify(pkg.version),
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},
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esbuildOptions(options) {
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options.alias = {
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"@hyperframes/producer": resolve(__dirname, "../producer/src/index.ts"),
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// hf#732 lever-4: alias for the PNG decode+blit worker's import.
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// `alphaBlit.ts` is import-free (only zlib) so the worker survives
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// the worker_thread loader boundary directly via this TS source.
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"@hyperframes/engine/alpha-blit": resolve(__dirname, "../engine/src/utils/alphaBlit.ts"),
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};
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options.loader = { ...options.loader, ".browser.js": "text" };
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},
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});
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