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🐛 Fix paths performance in new render

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This commit is contained in:
Alejandro Alonso 2025-05-16 14:15:33 +02:00
parent 8afd217a80
commit 96d44e0631
4 changed files with 183 additions and 22 deletions
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68
frontend/resources/wasm-playground/js/lib.js
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@ -92,6 +92,74 @@ export function addShapeSolidFill(argb) {
Module._add_shape_fill();
}
export function addShapeSolidStroleFill(argb) {
const ptr = allocBytes(160);
const heap = getHeapU32();
const dv = new DataView(heap.buffer);
dv.setUint8(ptr, 0x00, true);
dv.setUint32(ptr + 4, argb, true);
Module._add_shape_stroke_fill();
}
function serializePathAttrs(svgAttrs) {
return Object.entries(svgAttrs).reduce((acc, [key, value]) => {
return acc + key + '\0' + value + '\0';
}, '');
}
export function draw_star(x, y, width, height) {
const len = 11; // 1 MOVE + 9 LINE + 1 CLOSE
const ptr = allocBytes(len * 28);
const heap = getHeapU32();
const dv = new DataView(heap.buffer);
const cx = x + width / 2;
const cy = y + height / 2;
const outerRadius = Math.min(width, height) / 2;
const innerRadius = outerRadius * 0.4;
const star = [];
for (let i = 0; i < 10; i++) {
const angle = Math.PI / 5 * i - Math.PI / 2;
const r = i % 2 === 0 ? outerRadius : innerRadius;
const px = cx + r * Math.cos(angle);
const py = cy + r * Math.sin(angle);
star.push([px, py]);
}
let offset = 0;
// MOVE to first point
dv.setUint16(ptr + offset + 0, 1, true); // MOVE
dv.setFloat32(ptr + offset + 20, star[0][0], true);
dv.setFloat32(ptr + offset + 24, star[0][1], true);
offset += 28;
// LINE to remaining points
for (let i = 1; i < star.length; i++) {
dv.setUint16(ptr + offset + 0, 2, true); // LINE
dv.setFloat32(ptr + offset + 20, star[i][0], true);
dv.setFloat32(ptr + offset + 24, star[i][1], true);
offset += 28;
}
// CLOSE the path
dv.setUint16(ptr + offset + 0, 4, true); // CLOSE
Module._set_shape_path_content();
const str = serializePathAttrs({
"fill": "none",
"stroke-linecap": "round",
"stroke-linejoin": "round",
});
const size = str.length;
offset = allocBytes(size);
Module.stringToUTF8(str, offset, size);
Module._set_shape_path_attrs(3);
}
export function setShapeChildren(shapeIds) {
const offset = allocBytes(shapeIds.length * 16);
const heap = getHeapU32();

83
frontend/resources/wasm-playground/paths.html Normal file
View file

@ -0,0 +1,83 @@
<!DOCTYPE html>
<html lang="es">
<head>
<meta charset="UTF-8" />
<title>WASM + WebGL2 Canvas</title>
<style>
body {
margin: 0;
background: #111;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
overflow: hidden;
}
canvas {
width: 100%;
height: 100%;
position: absolute;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script type="module">
import initWasmModule from '/js/render_wasm.js';
import {
init, addShapeSolidFill, assignCanvas, hexToU32ARGB, getRandomInt, getRandomColor,
getRandomFloat, useShape, setShapeChildren, setupInteraction, set_parent, draw_star,
addShapeSolidStroleFill
} from './js/lib.js';
const canvas = document.getElementById("canvas");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
const shapes = 1000;
initWasmModule().then(Module => {
init(Module);
assignCanvas(canvas);
Module._set_canvas_background(hexToU32ARGB("#FABADA", 1));
Module._set_view(1, 0, 0);
Module._init_shapes_pool(shapes + 1);
setupInteraction(canvas);
const children = [];
for (let i = 0; i < shapes; i++) {
const uuid = crypto.randomUUID();
children.push(uuid);
useShape(uuid);
Module._set_parent(0, 0, 0, 0);
Module._set_shape_type(4);
const x1 = getRandomInt(0, canvas.width);
const y1 = getRandomInt(0, canvas.height);
const width = getRandomInt(20, 200);
const height = getRandomInt(20, 200);
Module._set_shape_selrect(x1, y1, x1 + width, y1 + height);
draw_star(x1, y1, width, height);
const color = getRandomColor();
const argb = hexToU32ARGB(color, getRandomFloat(0.1, 1.0));
addShapeSolidFill(argb)
Module._add_shape_center_stroke(10, 0, 0, 0);
const argb2 = hexToU32ARGB(color, getRandomFloat(0.1, 1.0));
addShapeSolidStroleFill(argb2);
}
useShape("00000000-0000-0000-0000-000000000000");
setShapeChildren(children);
performance.mark('render:begin');
Module._render(Date.now());
performance.mark('render:end');
const { duration } = performance.measure('render', 'render:begin', 'render:end');
// alert(`render time: ${duration.toFixed(2)}ms`);
});
</script>
</body>
</html>

8
frontend/resources/wasm-playground/rects.html
View file

@ -26,13 +26,13 @@
import initWasmModule from '/js/render_wasm.js';
import {
init, addShapeSolidFill, assignCanvas, hexToU32ARGB, getRandomInt, getRandomColor,
getRandomFloat, useShape, setShapeChildren, setupInteraction
getRandomFloat, useShape, setShapeChildren, setupInteraction, addShapeSolidStroleFill
} from './js/lib.js';
const canvas = document.getElementById("canvas");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
const shapes = 100;
const shapes = 1000;
initWasmModule().then(Module => {
init(Module);
@ -59,6 +59,10 @@
const color = getRandomColor();
const argb = hexToU32ARGB(color, getRandomFloat(0.1, 1.0));
addShapeSolidFill(argb)
Module._add_shape_center_stroke(10, 0, 0, 0);
const argb2 = hexToU32ARGB(color, getRandomFloat(0.1, 1.0));
addShapeSolidStroleFill(argb2);
}
useShape("00000000-0000-0000-0000-000000000000");