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1# Copyright 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"""Scirra WebGL and Canvas2D rendering benchmark suite.
6
7The Scirra WebGL performance test measures the number of 2D triangles
8represented onscreen when the animation reaches the 30 FPS threshold.
9"""
10
11import os
12
13from telemetry import benchmark
14from telemetry.page import page_set
15from telemetry.page import page_test
16from telemetry.value import scalar
17
18
19class _ScirraMeasurement(page_test.PageTest):
20
21  def WillNavigateToPage(self, page, tab):
22    page.script_to_evaluate_on_commit = 'window.sprites = 0;'
23
24  def ValidateAndMeasurePage(self, _, tab, results):
25    object_count = '$objectcount$'
26    fps = '$fps$'
27    tickcount = '$tickcount$'
28    # For http://www.scirra.com/labs/renderperf3/, JavaScript generated by
29    # Construct 2 has different variables for Objects, fps and tickcount.
30    if 'renderperf3' in tab.url:
31      object_count = '$d'
32      fps = 'Rb'
33      tickcount = 'Ff'
34
35    # Updates object count variable, when the FPS reaches 30 threshold and
36    # tickcounts to reach value greater than 500(just to stablize frames).
37    js_is_done = """
38        var IsTestDone = function() {
39          if (window.cr_getC2Runtime().%(tickcount)s > 500 &&
40              window.cr_getC2Runtime().%(fps)s == 30) {
41            window.sprites = window.cr_getC2Runtime().%(object_count)s;
42            return true;
43          } else {
44            return false;
45          }
46        };
47        IsTestDone();
48        """ % {'tickcount': tickcount, 'fps': fps, 'object_count': object_count}
49    tab.WaitForJavaScriptExpression(js_is_done, 300)
50    total = int(tab.EvaluateJavaScript('window.sprites'))
51    results.AddValue(scalar.ScalarValue(
52      results.current_page, 'Count', 'count', total))
53
54@benchmark.Disabled
55class ScirraBenchmark(benchmark.Benchmark):
56  """WebGL and Canvas2D rendering benchmark suite."""
57  test = _ScirraMeasurement
58  def CreatePageSet(self, options):
59    ps = page_set.PageSet(
60        archive_data_file='../page_sets/data/scirra.json',
61        make_javascript_deterministic=False,
62        file_path=os.path.abspath(__file__))
63    for url in ('http://www.scirra.com/labs/renderperf3/',
64                'http://www.scirra.com/demos/c2/renderperfgl/',
65                'http://www.scirra.com/demos/c2/renderperf2d/'):
66      ps.AddPageWithDefaultRunNavigate(url)
67    return ps
68
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