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chromium / chromium / src / cefbc0542808c92edf50518d5c00f89bb6a9eace
commitcefbc0542808c92edf50518d5c00f89bb6a9eace[log] [tgz]
authorKoji Ishii <kojii@chromium.org>Mon Aug 27 15:05:29 2018
committerCommit Bot <commit-bot@chromium.org>Mon Aug 27 15:05:29 2018
treed00de3f5e4684ae69a080e5048fe18e600c7bdef
parent8867f044f30b00b5763deecf24333f127f310ba8 [diff]
Batch calls to getTextWidths from HarfBuzz

As we found SkPaint::getTextWidths has rather high entry cost,
HarfBuzz has added a function to batch the call in [1].

This patch supports the batch function in HarfBuzzFace.

blink_perf.layout (Legacy): 3-25% improvements in 10 tests.
https://pinpoint-dot-chromeperf.appspot.com/job/137a7165640000

blink_perf.layout (LayoutNG): 3-40% improvements in 20 tests.
https://pinpoint-dot-chromeperf.appspot.com/job/111903c5640000

[1] https://github.com/harfbuzz/harfbuzz/commit/79e21984b13bdb879f3007ba9a97fde47df340d3

Bug: 636993
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: I04f839526cd35876996b679971d49a99e47ae46c
Reviewed-on: https://chromium-review.googlesource.com/1158671
Reviewed-by: Emil A Eklund <eae@chromium.org>
Commit-Queue: Emil A Eklund <eae@chromium.org>
Cr-Commit-Position: refs/heads/master@{#586264}
3 files changed
tree: d00de3f5e4684ae69a080e5048fe18e600c7bdef
  1. android_webview/
  2. apps/
  3. ash/
  4. base/
  5. blink/
  6. build/
  7. build_overrides/
  8. cc/
  9. chrome/
  10. chrome_elf/
  11. chromecast/
  12. chromeos/
  13. cloud_print/
  14. components/
  15. content/
  16. courgette/
  17. crypto/
  18. dbus/
  19. device/
  20. docs/
  21. extensions/
  22. gin/
  23. google_apis/
  24. google_update/
  25. gpu/
  26. headless/
  27. infra/
  28. ios/
  29. ipc/
  30. jingle/
  31. mash/
  32. media/
  33. mojo/
  34. native_client_sdk/
  35. net/
  36. pdf/
  37. ppapi/
  38. printing/
  39. remoting/
  40. rlz/
  41. sandbox/
  42. services/
  43. skia/
  44. sql/
  45. storage/
  46. styleguide/
  47. testing/
  48. third_party/
  49. tools/
  50. ui/
  51. url/
  52. webrunner/
  53. .clang-format
  54. .eslintrc.js
  55. .git-blame-ignore-revs
  56. .gitattributes
  57. .gitignore
  58. .gn
  59. .vpython
  60. AUTHORS
  61. BUILD.gn
  62. CODE_OF_CONDUCT.md
  63. codereview.settings
  64. DEPS
  65. ENG_REVIEW_OWNERS
  66. LICENSE
  67. LICENSE.chromium_os
  68. OWNERS
  69. PRESUBMIT.py
  70. PRESUBMIT_test.py
  71. PRESUBMIT_test_mocks.py
  72. README.md
  73. WATCHLISTS
README.md

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