first commit

2025-12-10 12:32:12 +00:00
commit adbbf6bf50
3442 changed files with 2725681 additions and 0 deletions
--- a/web-app/node_modules/meshoptimizer/benchmark.js
+++ b/web-app/node_modules/meshoptimizer/benchmark.js
@@ -0,0 +1,104 @@
+var encoder = require('./meshopt_encoder.js');
+var decoder = require('./meshopt_decoder.js');
+var { performance } = require('perf_hooks');
+
+process.on('unhandledRejection', error => {
+	console.log('unhandledRejection', error);
+	process.exit(1);
+});
+
+function bytes(view) {
+	return new Uint8Array(view.buffer, view.byteOffset, view.byteLength);
+}
+
+var tests = {
+	roundtripVertexBuffer: function() {
+		var N = 1024*1024;
+		var data = new Uint8Array(N * 16);
+
+		for (var i = 0; i < N * 16; i += 4)
+		{
+			data[i + 0] = 0;
+			data[i + 1] = (i % 16) * 1;
+			data[i + 2] = (i % 16) * 2;
+			data[i + 3] = (i % 16) * 8;
+		}
+
+		var decoded = new Uint8Array(N * 16);
+
+		var t0 = performance.now();
+		var encoded = encoder.encodeVertexBuffer(data, N, 16);
+		var t1 = performance.now();
+		decoder.decodeVertexBuffer(decoded, N, 16, encoded);
+		var t2 = performance.now();
+
+		return { encodeVertex: t1 - t0, decodeVertex: t2 - t1, bytes: N * 16 };
+	},
+
+	roundtripIndexBuffer: function() {
+		var N = 1024*1024;
+		var data = new Uint32Array(N * 3);
+
+		for (var i = 0; i < N * 3; i += 6)
+		{
+			var v = i / 6;
+
+			data[i + 0] = v;
+			data[i + 1] = v + 1;
+			data[i + 2] = v + 2;
+
+			data[i + 3] = v + 2;
+			data[i + 4] = v + 1;
+			data[i + 5] = v + 3;
+		}
+
+		var decoded = new Uint32Array(data.length);
+
+		var t0 = performance.now();
+		var encoded = encoder.encodeIndexBuffer(bytes(data), data.length, 4);
+		var t1 = performance.now();
+		decoder.decodeIndexBuffer(bytes(decoded), data.length, 4, encoded);
+		var t2 = performance.now();
+
+		return { encodeIndex: t1 - t0, decodeIndex: t2 - t1, bytes: N * 12 };
+	},
+};
+
+Promise.all([encoder.ready, decoder.ready]).then(() => {
+	var reps = 10;
+	var data = {}
+
+	for (var key in tests) {
+		data[key] = tests[key]();
+	}
+
+	for (var i = 1; i < reps; ++i) {
+		for (var key in tests) {
+			var nd = tests[key]();
+			var od = data[key];
+
+			for (var idx in nd) {
+				od[idx] = Math.min(od[idx], nd[idx]);
+			}
+		}
+	}
+
+	for (var key in tests) {
+		var rep = key;
+		rep += ":\n";
+
+		for (var idx in data[key]) {
+			if (idx != "bytes") {
+				rep += idx;
+				rep += " ";
+				rep += data[key][idx];
+				rep += " ms (";
+				rep += data[key].bytes / 1024 / 1024 / 1024 / data[key][idx] * 1000;
+				rep += " GB/s)";
+				rep += "\n";
+			}
+		}
+
+		console.log(rep);
+	}
+});