12

I have this peculiar problem with running a Processing application in IntelliJ IDEA. I want to save a large image and to do this I run in to the following exception:

Exception in thread "Animation Thread" java.lang.OutOfMemoryError: Java heap space at java.awt.image.DataBufferInt.(DataBufferInt.java:75) at java.awt.image.Raster.createPackedRaster(Raster.java:467) at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1032) at java.awt.image.BufferedImage.(BufferedImage.java:331) at processing.core.PImage.saveImageIO(PImage.java:3117) at processing.core.PImage.save(PImage.java:3297) at OffScreenRender.stopRender(OffScreenRender.java:38) at MainVecField.draw(MainVecField.java:93) at processing.core.PApplet.handleDraw(PApplet.java:2305) at processing.core.PGraphicsJava2D.requestDraw(PGraphicsJava2D.java:243) at processing.core.PApplet.run(PApplet.java:2176) at java.lang.Thread.run(Thread.java:724)

So clearly there is some memory allocation problem here. The problem is that when i change the .vmoptions files in IntelliJ I get the same results, they have no effect. The "memory" number at the lower right corner of the IDE increases accordingly but it does not seem to let my application allocate more memory.

When I run the processing application in the processing IDE I can manage to save much larger files by setting a large heap size.

In IntelliJ nothing over 256mb seems to make a difference. So my question is how do I set a larger heap size in IntelliJ that allows my application to allocate more memory?

Thank you for your help!

I attach the code for my project in case anyone wants to test it out:

import processing.core.*;

public class TestClassMain extends PApplet
{

    public static void main(String args[])
    {
        PApplet.main(new String[] { "--present", "TestClassMain" });
    }

    //Global variables
    OffScreenRender screenRender;
    int c = 0;

    //Variables for offScreenRender
    int resFactor = 10;
    boolean offScreenRenderSwitch = false;

    public void setup()
    {
        size(1000,700);
        background(0);
        stroke(255);

        //Initialize the render object
        screenRender = new OffScreenRender(this, 11000, 7950, resFactor);
    }

    public void draw()
    {
        frameRate(30);
        stroke(255);

        //Check if the render should be saved
        if(offScreenRenderSwitch == true){screenRender.startRender();}
        background(0,0,0);
        rect(20+c,height/2,60,60);

        if(offScreenRenderSwitch == true)
        {
            screenRender.stopRender();
            offScreenRenderSwitch = false;
        }
        c += 2;
    }

    public void keyPressed()
    {
        //Render the graphics to an offScreen buffer
        offScreenRenderSwitch = true;
    }
}


import processing.core.*;

/**
 * Renders the processingsketch to a .tif file at specified resolution.
 */

public class OffScreenRender
{
    PApplet parent; // The parent PApplet
    PGraphics render;
    int width;
    int height;
    int resFactor;

    OffScreenRender(PApplet p, int width_, int height_, int resFactor_)
    {
        //Initialize variables
        parent = p;
        width = width_;
        height = height_;
        resFactor = resFactor_;

        render = parent.createGraphics(width, height);
    }

    //Render the image
    void startRender()
    {
        parent.beginRecord(render);
        render.scale(resFactor);
        PApplet.println("first step");
    }

    //Render the image
    void stopRender()
    {
        parent.endRecord();
        PApplet.println("second step");
        render.save("hej");
        PApplet.println("final step");
    }
}
4

2 回答 2

38

更改 vmoptions 文件会调整 IntelliJ 使用的内存，但您在这里遇到的是 IntelliJ 为执行您的应用程序而启动的 JRE 内存不足。您需要在运行/调试配置的 VM 选项部分调整内存设置，例如：

在此处输入图像描述

于 2013-09-05T09:08:09.637 回答
4

IntelliJ 向您显示使用的数量和堆的当前大小。您正在尝试设置它未显示的最大值。

您可以将 VisualVM 附加到 IntellIJ 以通过运行查看最大值jvisualvm

于 2013-09-05T08:20:25.910 回答