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Also link to the source from the demos

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This commit is contained in:
dcodeIO
2018-04-19 18:53:01 +02:00
parent 7d3fb86691
commit 18ef7c1932
12 changed files with 499 additions and 501 deletions
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11
examples/mandelbrot/assembly/index.ts
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@ -1,4 +1,7 @@
export function update(width: u32, height: u32, max: u32): void {
// see: https://en.wikipedia.org/wiki/Mandelbrot_set
/** Computes the number of iterations in the rectangle `width` x `height`, limited to `max`. */
export function compute(width: u32, height: u32, max: u32): void {
var translateX = width / 1.6;
var translateY = height / 2.0;
var scale = 4.0 / width;
@ -7,12 +10,14 @@ export function update(width: u32, height: u32, max: u32): void {
for (let x: u32 = 0; x < width; ++x) {
let real = (x - translateX) * scale;
let iteration = <u32>0;
for (let ix = 0.0, iy = 0.0; ix * ix + iy * iy <= 4.0; ++iteration) {
let t = ix * ix - iy * iy + real;
let ixsq: f64, iysq: f64;
for (let ix = 0.0, iy = 0.0; (ixsq = ix * ix) + (iysq = iy * iy) <= 4.0; ++iteration) {
let t = ixsq - iysq + real;
iy = 2.0 * ix * iy + imaginary;
ix = t;
if (++iteration >= max) break;
}
// write normalized iterations to [0, width * height], row by row
store<u8>(y * width + x, iteration * 255 / max);
}
}