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Monorepo for Aesthetic.Computer aesthetic.computer
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1.5 kB · 45 lines
JavaScript
12345678910111213141516171819202122232425262728293031323334353637383940414243444546#!/usr/bin/env node// Render KidLisp pieces to PNG via self-contained WASM.
import { readFileSync, mkdirSync } from "fs";import { basename } from "path";import sharp from "sharp";import { Compiler } from "./compiler.mjs";
const OUT_DIR = new URL("./output/", import.meta.url).pathname;mkdirSync(OUT_DIR, { recursive: true });
const pieces = process.argv.slice(2);if (pieces.length === 0) pieces.push("hello.lisp");
const WIDTH = 256;const HEIGHT = 256;
for (const input of pieces) { const path = new URL(input, import.meta.url).pathname; const source = readFileSync(path, "utf-8"); const name = basename(input, ".lisp");
const compiler = new Compiler(); const wasmBytes = compiler.compile(source); const mathImports = { math: { sin: (x) => Math.fround(Math.sin(x)), cos: (x) => Math.fround(Math.cos(x)), random: () => Math.fround(Math.random()), }, }; const { instance } = await WebAssembly.instantiate(wasmBytes, mathImports); instance.exports.paint(WIDTH, HEIGHT, 0);
const mem = new Uint8Array(instance.exports.memory.buffer); const pixels = mem.slice(0, WIDTH * HEIGHT * 4);
const png = await sharp(Buffer.from(pixels), { raw: { width: WIDTH, height: HEIGHT, channels: 4 }, }).png().toBuffer();
const outPath = `${OUT_DIR}${name}.png`; await sharp(png).toFile(outPath); console.log(`${name}.png (${WIDTH}x${HEIGHT}, ${wasmBytes.length}B wasm → ${png.length}B png)`);}