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<script>
import { onMount, onDestroy } from "svelte";
import { authorizedSocket, authorizedSocketNeeded } from "../../stores/socketStore";
authorizedSocketNeeded.set(true);
export let enabled = true;
let target_fps = 60;
let svg;
let pixels = [];
let pixelBuffer = [];
let pixelBufferCh = false;
let pixelFlushInterval;
export function toggleEnable() {
enabled = !enabled;
if (!enabled) {
pixelBuffer = pixelBuffer.map(x => 0);
flushPixelBuffer(true);
}
}
function updateMatrix(matrix) {
if (matrix == null) { return; }
pixels = [];
let columnN = 0;
for (let y = 0; y < matrix.length; y++) {
if (matrix[y].length > columnN) { columnN = matrix[y].length; }
for (let x = 0; x < matrix[y].length; x++) {
pixels.push({x: x, y: y, n: matrix[y][x] });
}
}
if (svg != null) {
svg.setAttribute("viewBox", `0 0 ${columnN*2+2} ${matrix.length*2+2}`);
}
pixels = pixels;
}
async function updateColors(colors) {
if (!enabled) { return ; }
pixelBuffer = colors;
pixelBufferCh = true;
}
async function flushPixelBuffer(force=false) {
if (!force && (!pixelBufferCh || !enabled)) { return; }
pixelBufferCh = false;
window.requestAnimationFrame((ts) => {
for (let i = 0; i+2 < pixelBuffer.length; i+=3) {
let pixel;
try {
pixel = document.querySelector("#sim-pixel-"+(i/3));
if (pixel == null) { continue; }
pixel.style.setProperty(
"fill",
`rgb(${pixelBuffer[i]}, ${pixelBuffer[i+1]}, ${pixelBuffer[i+2]})`
);
} catch(e) {
console.log(e);
}
}
});
}
onMount(() => {
pixels = [];
pixelBuffer = [];
enabled = false;
authorizedSocket.on("matrix", updateMatrix);
authorizedSocket.on("strip_buffer", updateColors);
authorizedSocket.emit("matrix:get");
pixelFlushInterval = setInterval(flushPixelBuffer, 1000/target_fps);
});
onDestroy(() => {
clearInterval(pixelFlushInterval);
});
</script>
<style>
p {
margin: 0;
margin-bottom: 5px;
font-size: 10px;
color: var(--grey-500);
}
.wrapper {
width: 100%;
height: 100%;
}
</style>
<div class="wrapper">
<svg viewBox="0 0 0 0" preserveAspectRatio="xMaxYMax" bind:this={svg}>
{#each pixels as pixel}
<rect id="sim-pixel-{pixel.n}" x="{pixel.x*2+1}" y="{pixel.y*2+1}" width="1" height="1" style="fill:rgb(0,0,0);filter:blur(0.2px);" />
{/each}
</svg>
</div>
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