#
# Copyright 2015 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#

#!/usr/bin/env python

usage = '''
Write extra flags to outfile for nanobench based on the bot name:
  $ python nanobench_flags.py outfile Perf-Android-GCC-GalaxyS3-GPU-Mali400-Arm7-Release
Or run self-tests:
  $ python nanobench_flags.py test
'''

import inspect
import json
import os
import sys


def lineno():
  caller = inspect.stack()[1]  # Up one level to our caller.
  return inspect.getframeinfo(caller[0]).lineno


cov_start = lineno()+1   # We care about coverage starting just past this def.
def get_args(bot):
  args = []

  if 'GPU' in bot:
    args.append('--images')
    args.extend(['--gpuStatsDump', 'true'])

  if 'Appurify' not in bot:
    args.extend(['--scales', '1.0', '1.1'])

  if 'iOS' in bot:
    args.extend(['--skps', 'ignore_skps'])

  if 'Appurify' not in bot:
    config = ['565', '8888', 'gpu', 'nonrendering', 'angle', 'hwui']
    # The S4 crashes and the NP produces a long error stream when we run with
    # MSAA.
    if ('GalaxyS4'    not in bot and
        'NexusPlayer' not in bot):
      if 'Android' in bot:
        config.extend(['msaa4', 'nvprmsaa4'])
      else:
        config.extend(['msaa16', 'nvprmsaa16'])
    args.append('--config')
    args.extend(config)

  if 'Valgrind' in bot:
    # Don't care about Valgrind performance.
    args.extend(['--loops',   '1'])
    args.extend(['--samples', '1'])

  if 'HD2000' in bot:
    args.extend(['--GPUbenchTileW', '256'])
    args.extend(['--GPUbenchTileH', '256'])

  match = []
  if 'Android' in bot:
    # Segfaults when run as GPU bench. Very large texture?
    match.append('~blurroundrect')
    match.append('~patch_grid')  # skia:2847
    match.append('~desk_carsvg')
  if 'HD2000' in bot:
    match.extend(['~gradient', '~etc1bitmap'])  # skia:2895
  if 'NexusPlayer' in bot:
    match.append('~desk_unicodetable')
  if 'GalaxyS4' in bot:
    match.append('~GLInstancedArraysBench')  # skia:4371

  if 'iOS' in bot:
    match.append('~blurroundrect')
    match.append('~patch_grid')  # skia:2847
    match.append('~desk_carsvg')
    match.append('~keymobi')
    match.append('~path_hairline')

  # the 32-bit GCE bots run out of memory in DM when running these large images
  # so defensively disable them in nanobench, too.
  # FIXME (scroggo): This may have just been due to SkImageDecoder's
  # buildTileIndex leaking memory (https://bug.skia.org/4360). That is
  # disabled by default for nanobench, so we may not need this.
  # FIXME (scroggo): Share image blacklists between dm and nanobench?
  if 'x86' in bot and not 'x86-64' in bot:
    match.append('~interlaced1.png')
    match.append('~interlaced2.png')
    match.append('~interlaced3.png')

  # We do not need or want to benchmark the decodes of incomplete images.
  # In fact, in nanobench we assert that the full image decode succeeds.
  match.append('~inc0.gif')
  match.append('~inc1.gif')
  match.append('~incInterlaced.gif')
  match.append('~inc0.jpg')
  match.append('~incGray.jpg')
  match.append('~inc0.wbmp')
  match.append('~inc1.wbmp')
  match.append('~inc0.webp')
  match.append('~inc1.webp')
  match.append('~inc0.ico')
  match.append('~inc1.ico')
  match.append('~inc0.png')
  match.append('~inc1.png')
  match.append('~inc2.png')
  match.append('~inc12.png')
  match.append('~inc13.png')
  match.append('~inc14.png')
  match.append('~inc0.webp')
  match.append('~inc1.webp')

  if match:
    args.append('--match')
    args.extend(match)

  return args
cov_end = lineno()   # Don't care about code coverage past here.


def self_test():
  import coverage  # This way the bots don't need coverage.py to be installed.
  args = {}
  cases = [
    'Perf-Android-Nexus7-Tegra3-Arm7-Release',
    'Perf-Android-GCC-NexusPlayer-GPU-PowerVR-x86-Release',
    'Test-Ubuntu-GCC-ShuttleA-GPU-GTX550Ti-x86_64-Release-Valgrind',
    'Test-Win7-MSVC-ShuttleA-GPU-HD2000-x86-Debug-ANGLE',
    'Test-iOS-Clang-iPad4-GPU-SGX554-Arm7-Debug',
    'Test-Android-GCC-GalaxyS4-GPU-SGX544-Arm7-Release',
  ]

  cov = coverage.coverage()
  cov.start()
  for case in cases:
    args[case] = get_args(case)
  cov.stop()

  this_file = os.path.basename(__file__)
  _, _, not_run, _ = cov.analysis(this_file)
  filtered = [line for line in not_run if line > cov_start and line < cov_end]
  if filtered:
    print 'Lines not covered by test cases: ', filtered
    sys.exit(1)

  golden = this_file.replace('.py', '.json')
  with open(os.path.join(os.path.dirname(__file__), golden), 'w') as f:
    json.dump(args, f, indent=2, sort_keys=True)


if __name__ == '__main__':
  if len(sys.argv) == 2 and sys.argv[1] == 'test':
    self_test()
    sys.exit(0)

  if len(sys.argv) != 3:
    print usage
    sys.exit(1)

  with open(sys.argv[1], 'w') as out:
    json.dump(get_args(sys.argv[2]), out)