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chromium / chromium / src / d283a465cd615caa51d758a222cf6b2d43f1514c
commitd283a465cd615caa51d758a222cf6b2d43f1514c[log] [tgz]
authorOlga Gerchikov <gerchiko@microsoft.com>Wed Jul 30 00:23:13 2025
committerChromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Jul 30 00:23:13 2025
tree7eba5c557f73e2eb5d4cbc692c804c7ad7873892
parent97b5b7f06a19a5e388ea8f381b0ae747234b8b1d [diff]
Fixed raster translation for OOPIFs

Text composited with a non-zero offset from its parent block in an OOPIF
may appear blurry due to raster translation [1] not accounting for the
external page scale factor applied to OOP iframes.

The fix is to incorporate the external page scale factor into both the
draw transform and screen space transform, and then carry out all
subsequent calculations using the scaled values.

[1]
https://source.chromium.org/chromium/chromium/src/+/main:cc/layers/picture_layer_impl.cc;drc=4e5bc997187b317fd1da3b0a0456ee7e50b3d306;l=1728

Bug: 399478935
Change-Id: Ic4f5451a1bfb56ab41937159aef6a836d7406270
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6789493
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Olga Gerchikov <gerchiko@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#1493884}
6 files changed
tree: 7eba5c557f73e2eb5d4cbc692c804c7ad7873892
  1. .github/
  2. agents/
  3. android_webview/
  4. apps/
  5. ash/
  6. base/
  7. build/
  8. build_overrides/
  9. buildtools/
  10. cc/
  11. chrome/
  12. chromecast/
  13. chromeos/
  14. codelabs/
  15. components/
  16. content/
  17. crypto/
  18. dbus/
  19. device/
  20. docs/
  21. extensions/
  22. fuchsia_web/
  23. gin/
  24. google_apis/
  25. gpu/
  26. headless/
  27. infra/
  28. ios/
  29. ipc/
  30. media/
  31. mojo/
  32. net/
  33. pdf/
  34. printing/
  35. remoting/
  36. rlz/
  37. sandbox/
  38. services/
  39. skia/
  40. sql/
  41. storage/
  42. styleguide/
  43. testing/
  44. third_party/
  45. tools/
  46. ui/
  47. url/
  48. webkit/
  49. clank
  50. clusterfuzz-data
  51. internal
  52. ios_internal
  53. signing_keys
  54. v8
  55. .clang-format
  56. .clang-tidy
  57. .clangd
  58. .cursorignore
  59. .geminiignore
  60. .git-blame-ignore-revs
  61. .gitallowed
  62. .gitattributes
  63. .gitignore
  64. .gitmodules
  65. .gn
  66. .mailmap
  67. .rustfmt.toml
  68. .vpython3
  69. .yapfignore
  70. ATL_OWNERS
  71. AUTHORS
  72. BUILD.gn
  73. CODE_OF_CONDUCT.md
  74. codereview.settings
  75. CPPLINT.cfg
  76. CRYPTO_OWNERS
  77. DEPS
  78. DIR_METADATA
  79. LICENSE
  80. LICENSE.chromium_os
  81. OWNERS
  82. PRESUBMIT.py
  83. PRESUBMIT_test.py
  84. PRESUBMIT_test_mocks.py
  85. README.md
  86. SECURITY_OWNERS
  87. WATCHLISTS
README.md

Logo Chromium

Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.

The project's web site is https://www.chromium.org.

To check out the source code locally, don't use git clone! Instead, follow the instructions on how to get the code.

Documentation in the source is rooted in docs/README.md.

Learn how to Get Around the Chromium Source Code Directory Structure.

For historical reasons, there are some small top level directories. Now the guidance is that new top level directories are for product (e.g. Chrome, Android WebView, Ash). Even if these products have multiple executables, the code should be in subdirectories of the product.

If you found a bug, please file it at https://crbug.com/new.