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⚡ performance: improve canvas drawing performance #679

Merged
merged 2 commits into from
Sep 13, 2021
Merged

⚡ performance: improve canvas drawing performance #679

merged 2 commits into from
Sep 13, 2021

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wssgcg1213
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@wssgcg1213 wssgcg1213 commented Sep 13, 2021 •
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  • Picture 是个指令收集器, 使用 picture 作为 snapshot 实质上只是让 UI 线程(dart vm)的指令扁平化了, 但是 c++ engine 侧的指令还在累计, 通过 picture.approximateBytesUsed 可以看到数字在不断增长; 把 Picture 转换为 Image 作为 snapshot 可以解决这个问题
    fix JS循环使用Canvas绘制导致性能下降。 #676

@wssgcg1213 wssgcg1213 merged commit c251c85 into main Sep 13, 2021
@wssgcg1213 wssgcg1213 deleted the performance/canvas-drawing-performance branch September 13, 2021 09:50
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@yuanyan yuanyan yuanyan approved these changes

@andycall andycall andycall approved these changes

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JS循环使用Canvas绘制导致性能下降。
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@wssgcg1213 @yuanyan @andycall