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Support for AWT double buffering #100

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mbaracz opened this issue Sep 6, 2020 · 1 comment
Open

Support for AWT double buffering #100

mbaracz opened this issue Sep 6, 2020 · 1 comment

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@mbaracz
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mbaracz commented Sep 6, 2020 •
edited
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CheerpJ is initializing

java.lang.NullPointerException
	at java.awt.Component$FlipBufferStrategy.getDrawGraphics(Unknown Source) 
        at processing.awt.PSurfaceAWT.render(Unknown Source)
        at processing.awt.PSurfaceAWT$SmoothCanvas.paint(Unknown Source)
        at sun.awt.RepaintArea.paintComponent(Unknown Source)
        at sun.awt.RepaintArea.paint(Unknown Source)
        at com.leaningtech.cheerpj.CheerpJComponentPeer.handleEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

<!doctype html>
<html>
<head>
    <title>some title</title>
    <script src="https://cjrtnc.leaningtech.com/2.1/loader.js" crossorigin="anonymous"></script>
</head>
<body></body>
<script>
      cheerpjInit();
      cheerpjCreateDisplay(innerWidth, innerHeight);
      cheerpjRunJar("application.jar");
</script>
</html>
@alexp-sssup
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This application requires AWT double buffering, which is not currently supported.

@alexp-sssup alexp-sssup changed the title NPE for swing app with processing Support for AWT double buffering Sep 9, 2020
JeremyLeland added a commit to JeremyLeland/JeremyLeland.github.io that referenced this issue Feb 3, 2021
@JeremyLeland
Add legacy Frogger game
995daaf 
Got it working with a minor tweak! (changed BufferStrategy from double buffering to single, since CheerpJ doesn't support double buffering in awt yet -- see leaningtech/cheerpj-meta#100)
@alexp-sssup alexp-sssup mentioned this issue Apr 1, 2023
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@alexp-sssup @mbaracz