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display_list: Extract backend-specific surface providers #56711

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Nov 19, 2024

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@cbracken cbracken commented Nov 19, 2024

Extracts backend-specific code in DlSurfaceProvider to separate translation units. In particular, this allows for less conditional header includes, and more specifically, allows code relating to the Metal backend to include headers that include ARC-managed Objective-C types. Today we cast these all to void* (and manage refcounting manually) since these headers are included in dl_surface_provider.cc, which is a pure C++ translation unit.

No test changes since this patch includes no semantic changes.

Issue: flutter/flutter#158998

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Extracts backend-specific code in DlSurfaceProvider to separate
translation units. In particular, this allows for less conditional
header includes, and more specifically, allows code relating to the Metal
backend to include headers that include ARC-managed Objective-C types.
Today we cast these all to void* (and manage refcounting manually) since
these headers are included in dl_surface_provider.cc, which is a pure
C++ translation unit.

Issue: flutter/flutter#137801
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It looks like this pull request may not have tests. Please make sure to add tests before merging. If you need an exemption, contact "@test-exemption-reviewer" in the #hackers channel in Discord (don't just cc them here, they won't see it!).

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing. The test exemption team is a small volunteer group, so all reviewers should feel empowered to ask for tests, without delegating that responsibility entirely to the test exemption group.

@cbracken cbracken requested a review from loic-sharma November 19, 2024 19:07
@jonahwilliams jonahwilliams requested a review from flar November 19, 2024 19:12
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change LGTM but @flar should approve too

case kOpenGlBackend:
return "OpenGL";
case kMetalBackend:
return "Metal";
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Reordered for consistency with elsewhere in the file, and with the declaration order in the enum.

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LGTM

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LGTM

@cbracken cbracken added the autosubmit Merge PR when tree becomes green via auto submit App label Nov 19, 2024
@auto-submit auto-submit bot merged commit 13450c2 into flutter:main Nov 19, 2024
31 checks passed
@auto-submit auto-submit bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Nov 19, 2024
@cbracken cbracken deleted the dl-surface-provider-by-backend branch November 19, 2024 20:22
github-merge-queue bot pushed a commit to flutter/flutter that referenced this pull request Nov 19, 2024
…159168)

flutter/engine@4ff696b...7eb8754

2024-11-19 [email protected] EmbedderTest: templatise GetEmbedderContext
(flutter/engine#56709)
2024-11-19 [email protected] display_list: Extract backend-specific
surface providers (flutter/engine#56711)
2024-11-19 [email protected] Roll Skia from 78ef6b7a574f to
a694b9e85a49 (5 revisions) (flutter/engine#56713)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC [email protected],[email protected] on the revert to ensure
that a human
is aware of the problem.

To file a bug in Flutter:
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To report a problem with the AutoRoller itself, please file a bug:
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Documentation for the AutoRoller is here:
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test-exempt: yabba dabba doo

nick9822 pushed a commit to nick9822/flutter that referenced this pull request Dec 18, 2024
…ine#56711)

Extracts backend-specific code in DlSurfaceProvider to separate translation units. In particular, this allows for less conditional header includes, and more specifically, allows code relating to the Metal backend to include headers that include ARC-managed Objective-C types. Today we cast these all to void* (and manage refcounting manually) since these headers are included in dl_surface_provider.cc, which is a pure C++ translation unit.

No test changes since this patch includes no semantic changes.

Issue: flutter#137801

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
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5 participants