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chromium / chromium / src / bfc79fcc8f8dc3bd545fae080f2e1504bfe43b7b
commitbfc79fcc8f8dc3bd545fae080f2e1504bfe43b7b[log] [tgz]
authorChristopher Cameron <ccameron@chromium.org>Fri May 02 17:13:24 2025
committerChromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri May 02 17:13:24 2025
tree1422fa086cd45c6b0fb609b45619689811d7b04e
parentd8ae970e52d8fec8623cb7d0a440b600235b587b [diff]
Agtm: Add PNG and canvas metadata plumbing, add feature flag

Add plumbing for Agtm HDR metadata for PNG images using the private (not
standardized) chunk agTm to store the metadata.

Add plumbing for Agtm HDR metadata for canvas by adding it as a
parameter to CanvasHighDynamicRangeOptions. Note that that structure is
entirely behind the CanvasHDR runtime feature (which is experimental).

In order to ensure that Agtm videos, canvases, and image bitmaps don't
get promoted to overlays on any platform (regardless of the platform's
overlay processor), veto in DisplayResourceProvider::IsOverlayCandidate
any resources that have Agtm metadata. Hopefully the overlay processors
will come to share more code in the future.

Add a feature flag controlling whether Agtm metadata is ignored or not.

Bug: 395659818
Change-Id: Ibe08244ffadefcd02102da2705ad5cef3b8281c6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6508789
Reviewed-by: Vladimir Levin <vmpstr@chromium.org>
Reviewed-by: ccameron chromium <ccameron@chromium.org>
Commit-Queue: ccameron chromium <ccameron@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1455052}
7 files changed
tree: 1422fa086cd45c6b0fb609b45619689811d7b04e
  1. android_webview/
  2. apps/
  3. ash/
  4. base/
  5. build/
  6. build_overrides/
  7. buildtools/
  8. cc/
  9. chrome/
  10. chromecast/
  11. chromeos/
  12. codelabs/
  13. components/
  14. content/
  15. crypto/
  16. dbus/
  17. device/
  18. docs/
  19. extensions/
  20. fuchsia_web/
  21. gin/
  22. google_apis/
  23. gpu/
  24. headless/
  25. infra/
  26. ios/
  27. ipc/
  28. media/
  29. mojo/
  30. native_client_sdk/
  31. net/
  32. pdf/
  33. ppapi/
  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. internal
  51. ios_internal
  52. native_client
  53. signing_keys
  54. v8
  55. .clang-format
  56. .clang-tidy
  57. .clangd
  58. .git-blame-ignore-revs
  59. .gitallowed
  60. .gitattributes
  61. .gitignore
  62. .gitmodules
  63. .gn
  64. .mailmap
  65. .rustfmt.toml
  66. .vpython3
  67. .yapfignore
  68. ATL_OWNERS
  69. AUTHORS
  70. BUILD.gn
  71. CODE_OF_CONDUCT.md
  72. codereview.settings
  73. CPPLINT.cfg
  74. CRYPTO_OWNERS
  75. DEPS
  76. DIR_METADATA
  77. LICENSE
  78. LICENSE.chromium_os
  79. OWNERS
  80. PRESUBMIT.py
  81. PRESUBMIT_test.py
  82. PRESUBMIT_test_mocks.py
  83. README.md
  84. WATCHLISTS
README.md

Logo Chromium

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

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

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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.

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