cc: Reduce the number of occlusion checks in tiling iterators.

This patch caches tiling occlusion checks early and passes the boolean
around instead of recomputing the occlusion.

From cc_perftest's TileManagerPerfTest.RasterTileQueueConstructAndIterate
this improves the performance between 5% to 11% (depending on the subtest)

This similarly improves the eviction queue tests.

Note that inlining the IsTileOccluded seems necessary since otherwise
the occlusion construction is actually slower, since the call is done
from outside of the tiling class now.

R=pdr@chromium.org

Change-Id: I3190e7d28c21a9fa486529069cd6c965ada594c0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3183026
Reviewed-by: Philip Rogers <pdr@chromium.org>
Commit-Queue: vmpstr <vmpstr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#926263}
6 files changed
tree: 46d5132b1aea1615b2f5bfaed37a3f8f95d897f9
  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. cloud_print/
  13. codelabs/
  14. components/
  15. content/
  16. courgette/
  17. crypto/
  18. dbus/
  19. device/
  20. docs/
  21. extensions/
  22. fuchsia/
  23. gin/
  24. google_apis/
  25. google_update/
  26. gpu/
  27. headless/
  28. infra/
  29. ios/
  30. ipc/
  31. jingle/
  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. weblayer/
  53. .clang-format
  54. .clang-tidy
  55. .eslintrc.js
  56. .git-blame-ignore-revs
  57. .gitattributes
  58. .gitignore
  59. .gn
  60. .mailmap
  61. .vpython
  62. .vpython3
  63. .yapfignore
  64. AUTHORS
  65. BUILD.gn
  66. CODE_OF_CONDUCT.md
  67. codereview.settings
  68. DEPS
  69. DIR_METADATA
  70. ENG_REVIEW_OWNERS
  71. LICENSE
  72. LICENSE.chromium_os
  73. OWNERS
  74. PRESUBMIT.py
  75. PRESUBMIT_test.py
  76. PRESUBMIT_test_mocks.py
  77. README.md
  78. WATCHLISTS
README.md

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