native_client_sdk/src/examples/demo/voronoi/example.js

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 function moduleDidLoad() {
   6 }
   7
   8 function postThreadFunc(numThreads) {
   9   return function () {
  10     common.naclModule.postMessage({'message' : 'set_threads',
  11                                    'value' : numThreads});
  12   }
  13 }
  14
  15 // Add event listeners after the NaCl module has loaded.  These listeners will
  16 // forward messages to the NaCl module via postMessage()
  17 function attachListeners() {
  18   document.getElementById('benchmark').addEventListener('click',
  19     function() {
  20       common.naclModule.postMessage({'message' : 'run_benchmark'});
  21       common.updateStatus('BENCHMARKING... (please wait)');
  22     });
  23   document.getElementById('drawPoints').addEventListener('click',
  24     function() {
  25       var checked = document.getElementById('drawPoints').checked;
  26       common.naclModule.postMessage({'message' : 'draw_points',
  27                                      'value' : checked});
  28     });
  29   document.getElementById('drawInteriors').addEventListener('click',
  30     function() {
  31       var checked = document.getElementById('drawInteriors').checked;
  32       common.naclModule.postMessage({'message' : 'draw_interiors',
  33                                      'value' : checked});
  34     });
  35   var threads = [0, 1, 2, 4, 6, 8, 12, 16, 24, 32];
  36   for (var i = 0; i < threads.length; i++) {
  37     document.getElementById('radio' + i).addEventListener('click',
  38         postThreadFunc(threads[i]));
  39   }
  40   document.getElementById('pointRange').addEventListener('input',
  41     function() {
  42       var value = parseFloat(document.getElementById('pointRange').value);
  43       common.naclModule.postMessage({'message' : 'set_points',
  44                                      'value' : value});
  45       document.getElementById('pointCount').textContent = value + ' points';
  46     });
  47 }
  48
  49 // Handle a message coming from the NaCl module.
  50 // In the Voronoi example, the only message will be the benchmark result.
  51 function handleMessage(message_event) {
  52   if (message_event.data['message'] == 'benchmark_result') {
  53     var x = (Math.round(message_event.data['value'] * 1000) / 1000).toFixed(3);
  54     document.getElementById('result').textContent =
  55       'Result: ' + x + ' seconds';
  56     common.updateStatus('SUCCESS')
  57   }
  58 }
  59