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auto-submit[bot] 7b8c5d8ffd Reverts "[Impeller] porter duff workarounds for Adreno GPU. (#161273 )" (#161318 )

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Reverts: flutter/flutter#161273
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Initiated by: jtmcdole
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Reason for reverting: tree broken:

https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8726329921123044593/+/u/run_new_gallery_opengles_impeller__transition_perf/stdout

```
[2025-01-07 23:23:30.242453] [STDOUT] stdout: [        ] signal 6 (SIGABRT), code -1 (SI_QUEUE), fault addr --------
[2025-01-07 23:23:30.242492] [STDOUT] stdout: [        ] Abort message: '[FATAL:flutter/impeller/renderer/backen
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Original PR Author: jonahwilliams
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Reviewed By: {jtmcdole}
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This change reverts the following previous change:
Part of https://github.com/flutter/flutter/issues/161209

Many Adreno 6XX are having trouble compiling the PorterDuff and ConicalGradient Pipeline. This rewrites the former to use specialization constants to reduce runtime branches. From testing on an S9+, this is sufficient to get it to compile correctly.

As a bonus, this should be faster... though it adds more shaders.

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Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
Co-authored-by: John McDole <codefu@google.com>

2025-01-08 19:12:16 +00:00