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Update binaryen; Replace uses of Math.* with portable built-ins

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This commit is contained in:
dcodeIO
2017-12-09 01:35:18 +01:00
parent bbc71ebe81
commit 6d8de50565
7 changed files with 21 additions and 24 deletions
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29
tests/compiler/game-of-life.html
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@ -5,13 +5,11 @@
fetch("game-of-life.optimized.wast").then(response => response.text()).then(text => {
// Convert it to binary format
var buffer = Binaryen.parseText(text).emitBinary();
var binary = Binaryen.parseText(text).emitBinary();
// Instantiate the module
return WebAssembly.instantiate(buffer, {});
}).then(result => {
var module = result.instance;
var module = new WebAssembly.Module(binary);
var instance = new WebAssembly.Instance(module, { /* no imports */ });
// Set up the canvas with a 2D rendering context
var cnv = document.getElementById("canvas");
@ -22,28 +20,28 @@ fetch("game-of-life.optimized.wast").then(response => response.text()).then(text
S = s + s; // total memory required to store input and output
// Grow the (exported) memory if it's size isn't sufficient
var memory = module.exports.memory;
var memory = instance.exports.memory;
if (memory.buffer.byteLength < S)
memory.grow(Math.ceil((S - memory.buffer.byteLength) / 65536));
// Initialize with width and height
instance.exports.init(w, h);
// Fill input at [0, s-1] with random cells
var mem = new Uint8Array(memory.buffer);
for (var y = 0; y < h; ++y)
for (var x = 0; x < w; ++x)
mem[y * w + x] = Math.random() > 0.1 ? 0 : 1;
// Initialize with width and height
module.exports.init(w, h);
// Update about 30 times a second
function update() {
(function update() {
setTimeout(update, 33);
module.exports.step();
instance.exports.step();
mem.set(mem.subarray(s, S), 0); // copy output -> input
}
})();
// Keep rendering the output at [s, 2*s-1]
function render() {
(function render() {
requestAnimationFrame(render);
ctx.clearRect(0, 0, w, h);
ctx.fillStyle = "#333";
@ -51,10 +49,7 @@ fetch("game-of-life.optimized.wast").then(response => response.text()).then(text
for (var x = 0; x < w; ++x)
if (mem[s + y * w + x])
ctx.fillRect(x, y, 1, 1);
}
update();
render();
})();
}).catch(err => {
throw err;