RosettaCodeData/Task/Mandelbrot-set/JavaScript/mandelbrot-set-2.js

23 lines
648 B
JavaScript

var mandelIter;
fetch("./mandelIter.wasm")
.then(res => {
if (res.ok) return res.arrayBuffer();
throw new Error('Unable to fetch WASM.');
})
.then(bytes => { return WebAssembly.compile(bytes); })
.then(module => { return WebAssembly.instantiate(module); })
.then(instance => { WebAssembly.instance = instance; draw(); })
function mandelbrot(canvas, xmin, xmax, ymin, ymax, iterations) {
// ...
var i = WebAssembly.instance.exports.mandelIter(x, y, iterations);
// ...
}
function draw() {
// canvas initialization if necessary
// ...
mandelbrot(canvas, -2, 1, -1, 1, 1000);
// ...
}