mirror of
https://github.com/visioncortex/vtracer.git
synced 2026-08-30 17:05:57 -07:00
Chris Tsang
749f0df0bd
New nodejs/ package: a wasm-bindgen crate (vtracer-wasm) built with wasm-pack that wraps the vtracer framework, plus a thin JS layer for file I/O. Image decoding (png/jpeg/gif/bmp via the image crate) runs in wasm too, so the package has zero native dependencies — no sharp, no node-gyp. No separate general-purpose wasm crate: the Node package directly owns and wraps the wasm. Excluded from the cargo workspace (wasm-bindgen cdylib), built with wasm-pack. JS API (camelCase options): convertBuffer, convertPixels, convertFile, convertFileSync — each taking an Options object (preset, colorMode, hierarchical/cutout mosaic, mode, palette, maxColors, optimize, ...). Ships index.d.ts types and a node smoke test. README updated. Verified: builds to wasm32-unknown-unknown; `node test.js` passes; output matches the CLI/Python bindings (253 paths on the tank sample).
50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
'use strict';
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// Node package: image decoding + vectorization happen in wasm (no native
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// dependency); this layer only adds file I/O and a camelCase API.
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const fs = require('fs');
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const fsp = require('fs/promises');
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const wasm = require('./pkg/vtracer_wasm.js');
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/**
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* Vectorize an encoded image (PNG/JPEG/GIF/BMP) Buffer/Uint8Array to an SVG string.
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* @param {Uint8Array} buffer
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* @param {object} [options]
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* @returns {string}
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*/
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function convertBuffer(buffer, options = {}) {
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return wasm.vectorize_bytes(buffer, options);
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}
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/**
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* Vectorize a raw RGBA8 buffer (width*height*4 bytes) to an SVG string.
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* @param {Uint8Array} rgba
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* @param {number} width
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* @param {number} height
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* @param {object} [options]
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* @returns {string}
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*/
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function convertPixels(rgba, width, height, options = {}) {
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return wasm.vectorize_rgba(rgba, width, height, options);
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}
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/**
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* Read an image file, vectorize it, and write the SVG to disk.
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* @returns {Promise<void>}
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*/
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async function convertFile(inputPath, outputPath, options = {}) {
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const data = await fsp.readFile(inputPath);
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const svg = wasm.vectorize_bytes(data, options);
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await fsp.writeFile(outputPath, svg);
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}
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/** Synchronous {@link convertFile}. */
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function convertFileSync(inputPath, outputPath, options = {}) {
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const data = fs.readFileSync(inputPath);
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const svg = wasm.vectorize_bytes(data, options);
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fs.writeFileSync(outputPath, svg);
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}
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module.exports = { convertBuffer, convertPixels, convertFile, convertFileSync };
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