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<html>
<head>
<style>
body {
background-color: #123;
font-size: 12px;
font-family: sans-serif;
color: #ccc;
}
canvas {
width: 256px;
height: 64px;
image-rendering:pixelated;
}
.grid {
font-size: 29px;
}
</style>
</head>
<body>
Press play to start the engines:
<br/>
<button id="playbtn">play</button>
<button id="stopbtn">stop</button>
<br/>
<input type="range" min="0" max="2048" value="0" class="slider" id="pressure0">
- Pressure
<br/>
<input type="range" min="0" max="2048" value="0" class="slider" id="pos0">
- Pos
<br/>
<canvas height="32" id="c" width="128">plinky screen</canvas>
<br />
<div class="grid">
<div><span id="led00">⬤ </span><span id="led10">⬤ </span><span id="led20">⬤ </span><span
id="led30">⬤ </span><span id="led40">⬤ </span><span id="led50">⬤ </span><span id="led60">⬤
</span><span id="led70">⬤ </span></div>
<div><span id="led01">⬤ </span><span id="led11">⬤ </span><span id="led21">⬤ </span><span
id="led31">⬤ </span><span id="led41">⬤ </span><span id="led51">⬤ </span><span id="led61">⬤
</span><span id="led71">⬤ </span></div>
<div><span id="led02">⬤ </span><span id="led12">⬤ </span><span id="led22">⬤ </span><span
id="led32">⬤ </span><span id="led42">⬤ </span><span id="led52">⬤ </span><span id="led62">⬤
</span><span id="led72">⬤ </span></div>
<div><span id="led03">⬤ </span><span id="led13">⬤ </span><span id="led23">⬤ </span><span
id="led33">⬤ </span><span id="led43">⬤ </span><span id="led53">⬤ </span><span id="led63">⬤
</span><span id="led73">⬤ </span></div>
<div><span id="led04">⬤ </span><span id="led14">⬤ </span><span id="led24">⬤ </span><span
id="led34">⬤ </span><span id="led44">⬤ </span><span id="led54">⬤ </span><span id="led64">⬤
</span><span id="led74">⬤ </span></div>
<div><span id="led05">⬤ </span><span id="led15">⬤ </span><span id="led25">⬤ </span><span
id="led35">⬤ </span><span id="led45">⬤ </span><span id="led55">⬤ </span><span id="led65">⬤
</span><span id="led75">⬤ </span></div>
<div><span id="led06">⬤ </span><span id="led16">⬤ </span><span id="led26">⬤ </span><span
id="led36">⬤ </span><span id="led46">⬤ </span><span id="led56">⬤ </span><span id="led66">⬤
</span><span id="led76">⬤ </span></div>
<div><span id="led07">⬤ </span><span id="led17">⬤ </span><span id="led27">⬤ </span><span
id="led37">⬤ </span><span id="led47">⬤ </span><span id="led57">⬤ </span><span id="led67">⬤
</span><span id="led77">⬤ </span></div>
<div><span id="led80">⬤ </span><span id="led81">⬤ </span><span id="led82">⬤ </span><span
id="led83">⬤ </span><span id="led84">⬤ </span><span id="led85">⬤ </span><span id="led86">⬤
</span><span id="led87">⬤ </span></div>
</div>
<br />
<script src="plinky.js"></script>
<script>
const canvas = document.getElementById('c');
const height = 32;// canvas.height;
const width = 128;//canvas.width;
const ctx = canvas.getContext(
'2d',
{
alpha: false,
antialias: false,
depth: false
}
);
if (!ctx) {
throw 'Your browser does not support canvas';
}
var dotelems = [];
for (var y = 0; y < 9; ++y) {
dotelems[y] = [];
for (var x = 0; x < 8; ++x) {
dotelems[y][x] = document.getElementById('led' + y + '' + x);
}
}
var inited = 0;
var data, img, leddata, audiobuf;
var audioCtx, scriptNode;
var pos0 = document.getElementById("pos0");
var pressure0 = document.getElementById("pressure0");
function render() {
if (calledRun) {
if (!inited) {
console.log("init plinky 123!");
_plinky_init();
inited = true;
console.log("init plinky done!");
const pointer = _getemubitmap();
const leds = _getemuleds();
const audiobuf = _get_wasm_audio_buf();
console.log(pointer, leds);
data = new Uint8ClampedArray(HEAP8.buffer, pointer, 128 * 32 * 4);
leddata = new Uint8ClampedArray(HEAP8.buffer, leds, 9 * 8);
img = new ImageData(data, width, height);
const playbutton = document.getElementById('playbtn');
const stopbutton = document.getElementById('stopbtn');
audioCtx = new AudioContext({sampleRate:32000});
scriptNode = audioCtx.createScriptProcessor(1024, 0, 2);
console.log(scriptNode.bufferSize);
scriptNode.onaudioprocess = function (audioProcessingEvent) {
//var inputBuffer = audioProcessingEvent.inputBuffer;
var outputBuffer = audioProcessingEvent.outputBuffer;
var l = outputBuffer.getChannelData(0);
var r = outputBuffer.getChannelData(1);
_wasm_settouch(0, pos0.value, pressure0.value);
// console.log(l.length);
for (var smp=0;smp<l.length;smp+=64) {
_wasm_audio();
var ofs=audiobuf/2;
for (var i=0;i<64;++i) {
l[smp+i]=HEAP16[ofs++] * (1.0/32768.0);
r[smp+i]=HEAP16[ofs++] * (1.0/32768.0);
}
}
_plinky_frame_wasm();
}
scriptNode.connect(audioCtx.destination);
playbutton.onclick = function() {
audioCtx.resume();
}
stopbutton.onclick = function() {
audioCtx.suspend();
}
}
ctx.putImageData(img, 0, 0);
var idx = 0;
for (var y = 0; y < 9; ++y) {
for (var x = 0; x < 8; ++x) {
var c = leddata[idx++];
dotelems[y][x].style.color = "rgb(" + c + "," + c + "," + c + ")";
} //x
} // y
} // calledRun
window.requestAnimationFrame(render);
}
window.requestAnimationFrame(render);
//_plinky_init();
//const memSize = 1024; // 64 megs
//const memory = new WebAssembly.Memory({ initial: memSize, maximum: memSize });
//promise = WebAssembly.instantiate(new Uint8Array(decode(plinkycode)), { env: { memory } } );
//const instance = new WebAssembly.Instance(
// new WebAssembly.Module(new Uint8Array(decode(plinkycode))),
// { env: { memory } }
//);
// promise.then({
// console.log("gogogo");
/*
instance.exports._plinky_init();
const pointer = instance.exports._getemubitmap();
const data = new Uint8ClampedArray(memory.buffer, pointer, width * height * 4);
const img = new ImageData(data, width, height);
console.log(plinkycode.length);
const render = (timestamp) => {
// instance.exports._render(timestamp);
ctx.putImageData(img, 0, 0);
window.requestAnimationFrame(render);
};
window.requestAnimationFrame(render);
});
*/
</script>
</body>
</html>
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