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      1 # Copyright 2012 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 import glob
      5 import os
      6 
      7 from telemetry.page import page_test
      8 from telemetry.value import scalar
      9 
     10 
     11 _JS = 'chrome.gpuBenchmarking.printToSkPicture("{0}");'
     12 
     13 
     14 class SkpicturePrinter(page_test.PageTest):
     15   @classmethod
     16   def AddCommandLineArgs(cls, parser):
     17     parser.add_option('-s', '--skp-outdir',
     18                       help='Output directory for the SKP files')
     19 
     20   @classmethod
     21   def ProcessCommandLineArgs(cls, parser, args):
     22     if not args.skp_outdir:
     23       parser.error('Please specify --skp-outdir')
     24     cls._skp_outdir = args.skp_outdir
     25 
     26   def CustomizeBrowserOptions(self, options):
     27     options.AppendExtraBrowserArgs(['--enable-gpu-benchmarking',
     28                                     '--no-sandbox',
     29                                     '--enable-deferred-image-decoding'])
     30 
     31   def ValidateAndMeasurePage(self, page, tab, results):
     32     if tab.browser.platform.GetOSName() in ['android', 'chromeos']:
     33       raise page_test.MeasurementFailure(
     34           'SkPicture printing not supported on this platform')
     35 
     36     # Replace win32 path separator char '\' with '\\'.
     37     outpath = os.path.abspath(
     38         os.path.join(self._skp_outdir, page.file_safe_name))
     39     js = _JS.format(outpath.replace('\\', '\\\\'))
     40     tab.EvaluateJavaScript(js)
     41     pictures = glob.glob(os.path.join(outpath, '*.skp'))
     42     results.AddValue(scalar.ScalarValue(
     43         results.current_page, 'saved_picture_count', 'count', len(pictures)))
     44