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Resizable Window has rendering Bug #1003

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#1091
Open
Resizable Window has rendering Bug#1003
#1091
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duskvirkus
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bugSomething isn't workingcorehelp wantedExtra attention is neededlinux
@Benkralex

Description

@Benkralex
Benkralex
opened on Mar 24, 2025 · edited by Benkralex

Most appropriate sub-area of Processing 4?

Core/Environment/Rendering

Processing version

1295

Operating system

Linux Mint 22.1 x86_64; Kernel: 6.8.0-54-generic

Steps to reproduce this

  1. Download Source Code from https://github.com/processing/processing4/releases/tag/processing-1297-4.3.4

  2. Open Project in IntelliJ and run Ant Target Linux (See Picture in Additional context for Configuration)

  3. Paste Code from the Example of setResizable() into the IDE and run (See Picture in Additional context)

  4. Resize the window

snippet

void setup() {
  size(200, 200);
  surface.setTitle("Hello World!");
  surface.setResizable(true);
  surface.setLocation(100, 100);
}

void draw() {
  background(204);
  line(0, 0, width, height);
  line(width, 0, 0, height); 
}

Additional context

Image

Image

Would you like to work on the issue?

No

Activity

Benkralex
added
bugSomething isn't working
on Mar 24, 2025
SableRaf
assigned
Stefterv
on Mar 24, 2025
Stefterv

Stefterv commented on Mar 24, 2025

@Stefterv
Stefterv
on Mar 24, 2025
Collaborator

Hi @Benkralex I could not reproduce this on Ubuntu, could you please test the 4.4.1 beta with the distributed binary?

Benkralex

Benkralex commented on Mar 24, 2025

@Benkralex
Benkralex
on Mar 24, 2025
Author

I tested 4.4.1 beta with IntelliJ
Run Config:

Image

Same issue

I also tested to install the latest/beta 4.4.1 Version of the Snap Store, again same issue

Stefterv

Stefterv commented on Mar 24, 2025

@Stefterv
Stefterv
on Mar 24, 2025 · edited by Stefterv
Collaborator

Tested on a Linux Mint VM and seeing the same thing, switching to the P2D renderer fixes it so you could use that as a temporary fix until someone on real Mint can help us debug and fix this issue.

Image
Stefterv
added
help wantedExtra attention is needed
linux
core
on Mar 24, 2025
chris-ti-an

chris-ti-an commented on Mar 24, 2025

@chris-ti-an
chris-ti-an
on Mar 24, 2025

tested it with Processing (latest/beta 4.4.1) on Ubuntu 24.04.2 LTS

If I repeatedly resize the window for some time very quickly (large, small, large, ...), it takes a few seconds until it crashes and looks similar to the screenshots above.

Stefterv

Stefterv commented on Mar 24, 2025

@Stefterv
Stefterv
on Mar 24, 2025
Collaborator

Ah thank you @chris-ti-an, I suspect that is a different issue as on Mint it was instant, what you're describing is something we've also seen on Windows before

SableRaf

SableRaf commented on Apr 1, 2025

@SableRaf
SableRaf
on Apr 1, 2025
Collaborator

A simple resizeable sketch can also crash if the resizing is happening too fast.

Screen.Recording.2025-04-01.at.21.31.53.mov

Snippet

void setup() {
  size(500, 500);
  windowResizable(true);
  // allow the window to be resized
}

void draw() {
  circle(width / 2, height / 2, min(width, height) * 0.5);
  // draw a circle that resizes with the window
}

void windowResized() {
  println("Window resized to: " + width + "x" + height);
  // this function is called whenever the window is resized
}
duskvirkus

duskvirkus commented on Apr 18, 2025

@duskvirkus
duskvirkus
on Apr 18, 2025

I am interested in looking at this. I'm planning to try to reproduce this bug and try to fix it this sometime this week. If anyone else is working on it let me know so we can coordinate.

duskvirkus

duskvirkus commented on Apr 18, 2025

@duskvirkus
duskvirkus
on Apr 18, 2025

I was able to reproduce.

Image

Spent a little while investigating seems like the AWTEvent here

processing4/core/src/processing/awt/PSurfaceAWT.java

Lines 992 to 1014 in ecd219b

public void componentResized(ComponentEvent e) {
// Ignore bad resize events fired during setup to fix
// https://download.processing.org/bugzilla/341.html
// This should also fix the blank screen on Linux bug
// https://download.processing.org/bugzilla/282.html
if (frame.isResizable()) {
// might be multiple resize calls before visible (i.e. first
// when pack() is called, then when it's resized for use).
// ignore them because it's not the user resizing things.
Frame farm = (Frame) e.getComponent();
if (farm.isVisible()) {
Dimension windowSize = farm.getSize();
int x = farm.getX() + currentInsets.left;
int y = farm.getY() + currentInsets.top;
// JFrame (unlike java.awt.Frame) doesn't include the left/top
// insets for placement (though it does seem to need them for
// overall size of the window. Perhaps JFrame sets its coord
// system so that (0, 0) is always the upper-left of the content
// area. Which seems nice, but breaks any f*ing AWT-based code.
int w = windowSize.width - currentInsets.left - currentInsets.right;
int h = windowSize.height - currentInsets.top - currentInsets.bottom;
setSize(w / windowScaleFactor, h / windowScaleFactor);

doesn't have the expected size values.

Rather interestingly while debugging if I left the sketch running for awhile (10-15 seconds) before resizing sometimes it would work as expected. However when I tried to reproduce this it was inconstant.

More debugging required but done for today.

duskvirkus

duskvirkus commented on Apr 23, 2025

@duskvirkus
duskvirkus
on Apr 23, 2025

Continued the investigation. Seems like the issue might be the that the resize event fires once but then never again. So I was wrong before I think the size values are correct for the one even that fires. Hopefully I'll have more time in the next few days to look at it more.

Stefterv
assigned
duskvirkus
on Apr 25, 2025

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      Resizable Window has rendering Bug · Issue #1003 · processing/processing4