Performance Overlay's Text is Missing in Android #26387
Labels
a: typography
Text rendering, possibly libtxt
c: regression
It was better in the past than it is now
dependency: skia
Skia team may need to help us
engine
flutter/engine repository. See also e: labels.
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liyuqian
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c: regression
jason-simmons
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Jan 10, 2019
The engine dropped the ability to draw non anti-aliased text in https://fuchsia.googlesource.com/third_party/freetype2/+/a10b062df0c8958d69377aa04ea6554a9961a111 Fixes flutter/flutter#26387
jason-simmons
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Jan 10, 2019
The engine dropped the ability to draw non anti-aliased text in https://fuchsia.googlesource.com/third_party/freetype2/+/a10b062df0c8958d69377aa04ea6554a9961a111 Fixes flutter/flutter#26387
jason-simmons
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Jan 10, 2019
The engine dropped the ability to draw non anti-aliased text in https://fuchsia.googlesource.com/third_party/freetype2/+/a10b062df0c8958d69377aa04ea6554a9961a111 Fixes flutter/flutter#26387
liyuqian
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Jan 18, 2019
So we can do golden test on PerformanceOverlay to avoid regression like flutter/flutter#26387
liyuqian
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Jan 18, 2019
To avoid regression like flutter#26387 Need flutter/engine#7537 to land first.
liyuqian
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Jan 28, 2019
So we can do golden test on PerformanceOverlay to avoid regression like flutter/flutter#26387
liyuqian
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Feb 8, 2019
So we can do golden test on PerformanceOverlay to avoid regression like flutter/flutter#26387
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There should be fps and ms/frame statistics texts in performance overlay but they're missing on my Moto G4 (with or without software rendering) and my Linux Android simulator.
Strangely, the text appears on iOS simulator and iOS devices.
The text is drawn in https://github.com/flutter/engine/blob/master/flow/layers/performance_overlay_layer.cc#L22 without any font config. So this might be a Skia regression.
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