tools/perf/benchmarks/scirra.py

   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
   7 The Scirra WebGL performance test measures the number of 2D triangles
   8 represented onscreen when the animation reaches the 30 FPS threshold.
   9 """
  10
  11 import os
  12
  13 from telemetry import benchmark
  14 from telemetry.page import page_set
  15 from telemetry.page import page_test
  16 from telemetry.value import scalar
  17
  18
  19 class _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
  55 class 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
  69
  70