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Directly use 4x4 matrices with surface textures instead of converting to and from the 3x3 variants. #54126
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…to and from the 33 variants. SurfaceTextureGetTransformMatrix returns a col-major 4x4 matrix. We used to convert it to a 3x3 matrix. Then when applying the transformation in the shader, I'd convert it back to a 4x4 matrix. Instead of all this (potentially lossy) flip-flopping, store the matrix just as we get it in 4x4 form and perform the conversion just once if necessary. Today, it is necessary only in the Skia backend. SkM44 already has a converter to convert to and from a 3x3 SkMatrix. So, use that instead of rolling our own. I spent a lot of time debugging this conversions and transformation because we had rolled our own and the printers seemed to dump in col-major order irrespective of storage order. This caused a lot of confusion. No change in functionality. Hopefully, the next person debugging transformations has an easier go at this.
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…converting to and from the 3x3 variants. (flutter/engine#54126)
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…converting to and from the 3x3 variants. (flutter/engine#54126)
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…ions) (#152379) Manual roll requested by [email protected] flutter/engine@8714b54...342a425 2024-07-26 98614782+auto-submit[bot]@users.noreply.github.com Reverts "[Impeller] Implement draw order optimization. (#54067)" (flutter/engine#54136) 2024-07-26 [email protected] Roll Skia from 06b26a1d51d7 to cd892b576ade (1 revision) (flutter/engine#54134) 2024-07-26 [email protected] Directly use 4x4 matrices with surface textures instead of converting to and from the 3x3 variants. (flutter/engine#54126) 2024-07-26 [email protected] Roll Skia from e9b8585af6b5 to 06b26a1d51d7 (1 revision) (flutter/engine#54132) 2024-07-26 [email protected] [Impeller] Implement draw order optimization. (flutter/engine#54067) 2024-07-26 [email protected] Roll Fuchsia Test Scripts from clqtZA8cx4GEXwcOe... to dUCMHqU6ihfIFKAw8... (flutter/engine#54130) 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],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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…ions) (flutter#152379) Manual roll requested by [email protected] flutter/engine@8714b54...342a425 2024-07-26 98614782+auto-submit[bot]@users.noreply.github.com Reverts "[Impeller] Implement draw order optimization. (flutter#54067)" (flutter/engine#54136) 2024-07-26 [email protected] Roll Skia from 06b26a1d51d7 to cd892b576ade (1 revision) (flutter/engine#54134) 2024-07-26 [email protected] Directly use 4x4 matrices with surface textures instead of converting to and from the 3x3 variants. (flutter/engine#54126) 2024-07-26 [email protected] Roll Skia from e9b8585af6b5 to 06b26a1d51d7 (1 revision) (flutter/engine#54132) 2024-07-26 [email protected] [Impeller] Implement draw order optimization. (flutter/engine#54067) 2024-07-26 [email protected] Roll Fuchsia Test Scripts from clqtZA8cx4GEXwcOe... to dUCMHqU6ihfIFKAw8... (flutter/engine#54130) 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],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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…ions) (flutter#152379) Manual roll requested by [email protected] flutter/engine@8714b54...342a425 2024-07-26 98614782+auto-submit[bot]@users.noreply.github.com Reverts "[Impeller] Implement draw order optimization. (flutter#54067)" (flutter/engine#54136) 2024-07-26 [email protected] Roll Skia from 06b26a1d51d7 to cd892b576ade (1 revision) (flutter/engine#54134) 2024-07-26 [email protected] Directly use 4x4 matrices with surface textures instead of converting to and from the 3x3 variants. (flutter/engine#54126) 2024-07-26 [email protected] Roll Skia from e9b8585af6b5 to 06b26a1d51d7 (1 revision) (flutter/engine#54132) 2024-07-26 [email protected] [Impeller] Implement draw order optimization. (flutter/engine#54067) 2024-07-26 [email protected] Roll Fuchsia Test Scripts from clqtZA8cx4GEXwcOe... to dUCMHqU6ihfIFKAw8... (flutter/engine#54130) 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],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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SurfaceTextureGetTransformMatrix returns a col-major 4x4 matrix. We used to convert it to a 3x3 matrix. Then when applying the transformation in the shader, I'd convert it back to a 4x4 matrix.
Instead of all this (potentially lossy) flip-flopping, store the matrix just as we get it in 4x4 form and perform the conversion just once if necessary. Today, it is necessary only in the Skia backend. SkM44 already has a converter to convert to and from a 3x3 SkMatrix. So, use that instead of rolling our own.
I spent a lot of time debugging these conversions and transformations because we had rolled our own and the printers seemed to dump in row-major order irrespective of storage order. This caused a lot of confusion.
No change in functionality. Hopefully, the next person debugging transformations has an easier go at this.