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209 lines
5.6 KiB
209 lines
5.6 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>MonoDisplay Test</title>
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<style>
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*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
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body {
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background: #111;
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color: #ccc;
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font-family: monospace;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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min-height: 100vh;
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gap: 20px;
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padding: 20px;
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}
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h1 {
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font-size: 14px;
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letter-spacing: 0.15em;
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color: #555;
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text-transform: uppercase;
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}
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/*
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* Display container: holds the canvas at a fixed 2:1 aspect ratio (160:80).
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* Canvas internal resolution stays at 160×80 logical pixels.
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* CSS stretches it to fill this box — image-rendering: pixelated keeps crisp edges.
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* To resize the on-screen display: change max-width here. Driver is unaffected.
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*/
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#display-box {
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width: 100%;
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max-width: 800px;
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aspect-ratio: 2 / 1;
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background: #000;
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border: 2px solid #333;
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border-radius: 4px;
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overflow: hidden;
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position: relative;
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}
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#canvas_root {
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width: 100%;
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height: 100%;
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display: block;
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image-rendering: pixelated;
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image-rendering: crisp-edges; /* Firefox */
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}
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#resolution {
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position: absolute;
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bottom: 6px;
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right: 8px;
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font-size: 10px;
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color: #333;
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pointer-events: none;
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}
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#controls {
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display: flex;
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flex-wrap: wrap;
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gap: 8px;
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justify-content: center;
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}
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#controls button {
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background: #1a1a1a;
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color: #888;
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border: 1px solid #333;
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border-radius: 3px;
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padding: 6px 14px;
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font-family: monospace;
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font-size: 12px;
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cursor: pointer;
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transition: background 0.1s, color 0.1s;
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}
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#controls button:hover { background: #222; color: #bbb; }
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#controls button.active { background: #1e3a1e; color: #33ff66; border-color: #33ff66; }
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#status { font-size: 11px; color: #444; min-height: 1em; }
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</style>
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</head>
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<body>
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<h1>MonoDisplay — 160 × 80</h1>
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<div id="display-box">
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<!-- Internal res = displayWidth × displayHeight (160×80). CSS does the upscaling. -->
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<canvas id="canvas_root" width="160" height="80"></canvas>
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</div>
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<div id="controls"></div>
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<div id="status">select a demo</div>
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<!--
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Build the library first: bun run build
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Produces public/mono-display.js — exposes all types on window.MonoDisplay.
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Then serve index.html from any static file server (or file:// directly).
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-->
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<script src="./public/mono-display.js"></script>
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<script>
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(function() {
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const { MonoDisplayDriver, MonoDisplayFile, ElementType } = window.MonoDisplay;
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const driver = new MonoDisplayDriver("canvas_root", {
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onColor: "#EC0",
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offColor: "#000",
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fps: 25,
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});
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const W = 160, H = 80;
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const demos = [
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{
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label: "Checkerboard (static)",
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make() {
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const pixels = new Uint8Array(W * H);
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for (let y = 0; y < H; y++)
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for (let x = 0; x < W; x++)
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pixels[y * W + x] = (x + y) % 2;
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return new MonoDisplayFile({
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width: W, height: H,
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elements_always: [{ type: ElementType.Image2D, pixels, width: W, height: H }],
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}).toBuffer();
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},
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},
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{
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label: "Blink (animation)",
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make() {
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return new MonoDisplayFile({
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elements_always: {
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flags: { drawFront: true, clearBuffer: true },
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elements: [{
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type: ElementType.Animation,
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width: W, height: H,
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updateInterval: 12, // every 13 ticks ≈ 500ms per frame at 25fps
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frames: [
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{ pixels: new Uint8Array(W * H).fill(1) },
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{ pixels: new Uint8Array(W * H).fill(0) },
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],
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}],
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},
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}).toBuffer();
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},
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},
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{
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label: "Text (centered)",
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make() {
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return new MonoDisplayFile({
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elements_always: {
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flags: { drawFront: true, clearBuffer: true },
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elements: [{
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type: ElementType.ClippedText,
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text: "Hello, World!",
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xOffset: 0, yOffset: 32,
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width: W, height: 16,
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}],
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},
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}).toBuffer();
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},
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},
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{
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label: "Scrolltext (left)",
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make() {
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return new MonoDisplayFile({
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elements_always: {
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flags: { drawFront: true, clearBuffer: true },
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elements: [{
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type: ElementType.HScrollText,
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text: "MONO DISPLAY — scrolling ticker — 🚀 ",
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xOffset: 0, yOffset: 32,
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width: W, height: 16,
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scrollSpeed: 50,
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flags: { endless: true, invertDirection: false },
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}],
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},
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}).toBuffer();
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},
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},
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];
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const controls = document.getElementById("controls");
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let activeBtn = null;
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for (const demo of demos) {
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const btn = document.createElement("button");
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btn.textContent = demo.label;
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btn.onclick = () => {
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if (activeBtn) activeBtn.classList.remove("active");
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btn.classList.add("active");
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activeBtn = btn;
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driver.load(() => Promise.resolve(demo.make()));
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};
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controls.appendChild(btn);
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}
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controls.firstElementChild.click();
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})();
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</script>
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</body>
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</html>
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