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@gaaclarke gaaclarke commented Nov 26, 2025

fixes #178766

This adds an "imp_" to all impeller shader entrypoints so that they are much less likely to collide with user's shaders.

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@github-actions github-actions bot added engine flutter/engine related. See also e: labels. e: impeller Impeller rendering backend issues and features requests labels Nov 26, 2025
@gaaclarke gaaclarke marked this pull request as ready for review November 26, 2025 23:43
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I tested on metal, looks like vulkan isn't happy yet. Putting it back into draft to fix it.

@gaaclarke gaaclarke marked this pull request as draft December 1, 2025 18:27
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I think ideally the shader name would be read from the spirv file or from generating the json file and reading it from that. That is way more involved than this approach though.

@gaaclarke gaaclarke marked this pull request as ready for review December 1, 2025 20:43
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tests were stalled, kicking the bots, friendly pingle @chinmaygarde

defines += [ "IMPELLER_TARGET_OPENGLES3" ]
}

if (defined(invoker.entry_point_prefix)) {
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There is a forward_variables_from thing too that might be useful if we add more flags.

@gaaclarke gaaclarke added the autosubmit Merge PR when tree becomes green via auto submit App label Dec 3, 2025
@auto-submit auto-submit bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Dec 3, 2025
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auto-submit bot commented Dec 3, 2025

autosubmit label was removed for flutter/flutter/179160, because - The status or check suite Linux linux_host_engine_test has failed. Please fix the issues identified (or deflake) before re-applying this label.

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Looks like opengles isn't happy now. Sorry, I thought we got past those tests before CI stalled out. My assumption was that opengles doesn't have named entrypoints so it wouldn't be affected at all. Querying tests would have happened based some pointer to the runtime compilation result.

@gaaclarke gaaclarke added the autosubmit Merge PR when tree becomes green via auto submit App label Dec 3, 2025
@auto-submit auto-submit bot added this pull request to the merge queue Dec 4, 2025
Merged via the queue into flutter:master with commit e0be74f Dec 4, 2025
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Roll Flutter from 69d8710fadcd to 5b8720312a94 (42 revisions)

flutter/flutter@69d8710...5b87203

2025-12-05 [email protected] Roll Packages from d39e481 to b17d3ff (3 revisions) (flutter/flutter#179505)
2025-12-05 [email protected] Move target_cpu into use_rbe block in Fuchsia build (flutter/flutter#179458)
2025-12-05 [email protected] Roll Skia from fe6bf18a3f6b to a31411879251 (3 revisions) (flutter/flutter#179499)
2025-12-05 [email protected] Force WASM single threading in Chrome extensions. (flutter/flutter#179400)
2025-12-05 [email protected] Roll Skia from aea282ea0bcd to fe6bf18a3f6b (7 revisions) (flutter/flutter#179489)
2025-12-05 [email protected] fix: check both pointer count and action before reusing MotionEvent (flutter/flutter#178528)
2025-12-05 [email protected] Roll Fuchsia Linux SDK from VtDPX2k1kosHxjKUE... to vDeTl_KBeLJY8nCAx... (flutter/flutter#179478)
2025-12-05 [email protected] [ Widget Preview ] Add embedded Widget Inspector support (flutter/flutter#178116)
2025-12-05 [email protected] bubble up fragment shader errors (flutter/flutter#179363)
2025-12-05 [email protected] Roll Dart SDK from eda82318e193 to 42fe3327abca (1 revision) (flutter/flutter#179472)
2025-12-05 [email protected] [Android 16] Use AVD With New Android Renderer (flutter/flutter#179306)
2025-12-05 [email protected] Unpin `package:dwds` dependency (flutter/flutter#179462)
2025-12-05 [email protected] [Impeller] include uniform info in impellerc json reflections (flutter/flutter#179317)
2025-12-05 [email protected] Roll Skia from 1591b066f49b to aea282ea0bcd (1 revision) (flutter/flutter#179468)
2025-12-04 [email protected] Roll Skia from e1923478562b to 1591b066f49b (3 revisions) (flutter/flutter#179460)
2025-12-04 [email protected] Cherry-pick flutter 3.38.4 changelog back to master. (flutter/flutter#179463)
2025-12-04 [email protected] [web] Add clone method to LayerPicture and dispose pictures in PictureLayer (flutter/flutter#179162)
2025-12-04 [email protected] Fixes merge conflict from high bitrate texture tests (flutter/flutter#179416)
2025-12-04 [email protected] Fix typos in `VirtualDisplayController.java` (flutter/flutter#179411)
2025-12-04 [email protected] Roll Dart SDK from 2de44cc08970 to eda82318e193 (1 revision) (flutter/flutter#179453)
2025-12-04 [email protected] Roll Skia from 55d94a54f453 to e1923478562b (1 revision) (flutter/flutter#179449)
2025-12-04 [email protected] Roll Packages from 8cb4903 to d39e481 (8 revisions) (flutter/flutter#179451)
2025-12-04 [email protected] Add DropdownMenu.selectOnly (flutter/flutter#179189)
2025-12-04 [email protected] Roll Dart SDK from 7e6bfc6af55c to 2de44cc08970 (6 revisions) (flutter/flutter#179443)
2025-12-04 [email protected] Roll Skia from b8f79d7316c0 to 55d94a54f453 (1 revision) (flutter/flutter#179439)
2025-12-04 [email protected] Revise README for link updates and terminology changes (flutter/flutter#179357)
2025-12-04 [email protected] Roll Skia from ce19122e3982 to b8f79d7316c0 (3 revisions) (flutter/flutter#179436)
2025-12-04 [email protected] Update some BottomNavigationBar comments to reflect theme normalization (flutter/flutter#179404)
2025-12-04 [email protected] Replace use of eglCreateImage with eglCreateImageKHR to reduce EGL requirement (flutter/flutter#179310)
2025-12-04 [email protected] Roll Skia from 81a9a0751f00 to ce19122e3982 (5 revisions) (flutter/flutter#179430)
2025-12-04 [email protected] [impellerc] adds entry prefix flag to avoid shader collisions (flutter/flutter#179160)
2025-12-04 [email protected] [Windows] Allow apps to prefer high power GPUs (flutter/flutter#177653)
2025-12-04 [email protected] [ Infra ] Shard `Windows tool_tests_commands` (flutter/flutter#179409)
2025-12-04 [email protected] [flutter_tools] Fix filename typo (flutter/flutter#179427)
2025-12-04 [email protected] Marks Linux_pixel_7pro draw_arcs_all_stroke_styles_perf__timeline_summary to be unflaky (flutter/flutter#179392)
2025-12-03 [email protected] Marks Mac_ios draw_arcs_all_fill_styles_perf_ios__timeline_summary to be unflaky (flutter/flutter#179391)
2025-12-03 [email protected] Marks Linux_pixel_7pro draw_arcs_all_fill_styles_perf__timeline_summary to be unflaky (flutter/flutter#179390)
2025-12-03 [email protected] Roll Abseil to 564023aa5376 (flutter/flutter#179421)
2025-12-03 [email protected] Made wide gamut tests give more information in their failure (flutter/flutter#179415)
2025-12-03 [email protected] Roll Skia from c20f797ab6f9 to 81a9a0751f00 (5 revisions) (flutter/flutter#179417)
2025-12-03 [email protected] Migrate samples and docs to RadioGroup (flutter/flutter#179158)
2025-12-03 [email protected] Roll Dart SDK to 3.11.0-200.1.beta (flutter/flutter#179399)

If this roll has caused a breakage, revert this CL and stop the roller
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reidbaker pushed a commit to AbdeMohlbi/flutter that referenced this pull request Dec 10, 2025
…r#179160)

fixes flutter#178766

This adds an "imp_" to all impeller shader entrypoints so that they are
much less likely to collide with user's shaders.

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[impeller]: runtime effect has no vertex shader when name overlaps builtin shader

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