Processing Forum

GSVideo constantly creating new threads which leads to Invalid memory access on Mac OS X

[2 Replies]
- 31-Oct-2012 03:49 AM
- Forum: Contributed Library Questions
Hi,

It seems like GSVideo is constantly creating new threads when running a basic example like this:
1. package org.ixagon.gsvideotest;
3. import java.util.ArrayList;
5. import codeanticode.glgraphics.GLConstants;
6. import codeanticode.glgraphics.GLTexture;
7. import codeanticode.gsvideo.GSMovie;
8. import processing.core.PApplet;
10. @SuppressWarnings("serial")
11. public class GSVideoTest extends PApplet {
13. private GSMovie movie;
14. private GLTexture tex;
16. @Override
17. public void setup() {
18. size(640, 480, GLConstants.GLGRAPHICS);
19. background(0);
21. movie = new GSMovie(this, "sample.avi");
23. tex = new GLTexture(this);
24. movie.setPixelDest(tex);
25. movie.loop();
26. }
28. public void movieEvent(GSMovie movie) {
29. movie.read();
30. }
32. @Override
33. public void draw() {
34. if (tex.putPixelsIntoTexture()) {
35. image(tex, 0, 0);
36. }
37. }
39. public static void main(String args[]) {
40. ArrayList<String> argList = new ArrayList<String>();
41. argList.add("org.ixagon.gsvideotest.GSVideoTest");
42. PApplet.main(argList.toArray(new String[0]));
43. }
45. }
If you run the example in Debug mode and check the Debug in Eclipse you will see that it creates a new thread per frame, it seems to dump the old one, but still, creating a new thread.
When running the sketch for about 12 hours it crashes with an "Invalid memory access of location" on a thread called "Thread 2683867", which is the thread count it has reached.

I've checked the source code of GSVideo and it doesn't create any new threads anywhere in there. Is it an issue with gstreamer?

Many many thanks in advance.

registerMethod("keyEvent" ...) not working with OPENGL renderer in Processing 2.0b3

[1 Reply]
- 12-Oct-2012 03:32 AM
- Forum: Core Library Questions
Hi,

Topic says it all really. If I do size(500, 500); registerMethod("keyEvent" ...) works, but not when I do size(500, 500, OPENGL); or size(500, 500, P3D);.

Update method tip

[2 Replies]
- 11-Oct-2012 02:24 PM
- Forum: Share your Work
Hi,

I see a lot of people doing calculations in the draw method, which in some cases is necessary (when working on opengl textures etc.), but in most it can be avoided and usually only slows down the drawing thread.

I thought I'd share how I make a separate thread to handle the calculations.

I have a class called CalculationThread which looks like this:
1. import java.lang.reflect.InvocationTargetException;
2. import java.lang.reflect.Method;
3. import java.util.ArrayList;
5. public class CalculationThread implements Runnable {
7. private Thread t;
8. private int sleepTime;
9. private ArrayList<UpdateListener> updateListeners = new ArrayList<UpdateListener>();
11. public CalculationThread(int sleepTime) {
12. this.sleepTime = sleepTime;
13. }
15. public void addUpdateListener(Object object) {
16. try {
17. updateListeners.add(new UpdateListener(object, object.getClass().getMethod("update", new Class[] {
18. }
19. )));
20. }
21. catch (SecurityException e) {
22. e.printStackTrace();
23. }
24. catch (NoSuchMethodException e) {
25. System.err.println("No public update method in " + object.getClass().getSimpleName());
26. }
27. catch (IllegalArgumentException e) {
28. System.err.println("Update method in " + object.getClass().getSimpleName() + " shouldn't have any arguments");
29. }
30. }
32. public void run() {
33. Thread me = Thread.currentThread();
35. while (t == me) {
36. for (int i = 0; i < updateListeners.size(); i++) {
37. UpdateListener ul = updateListeners.get(i);
38. try {
39. ul.getMethod().invoke(ul.getObject(), new Object[] {
40. }
41. );
42. }
43. catch (IllegalArgumentException e) {
44. e.printStackTrace();
45. }
46. catch (IllegalAccessException e) {
47. e.printStackTrace();
48. }
49. catch (InvocationTargetException e) {
50. e.printStackTrace();
51. }
52. }
54. try {
55. Thread.sleep(sleepTime);
56. }
57. catch (InterruptedException e) {
58. e.printStackTrace();
59. }
60. }
61. t = null;
62. }
64. public void start() {
65. if (t == null) {
66. t = new Thread(this);
67. t.start();
68. }
69. }
71. public void stop() {
72. if (t != null) {
73. t.interrupt();
74. }
75. t = null;
76. }
78. public void dispose() {
79. stop();
80. }
82. public class UpdateListener {
84. private Object object;
85. private Method method;
87. public UpdateListener(Object object, Method method) {
88. this.object = object;
89. this.method = method;
90. }
92. public Object getObject() {
93. return object;
94. }
96. public void setObject(Object object) {
97. this.object = object;
98. }
100. public Method getMethod() {
101. return method;
102. }
104. public void setMethod(Method method) {
105. this.method = method;
106. }
107. }
108. }
What it does it looping all update methods added to the ArrayList updateListeners.

This is how I use it.
1. public static CalculationThread CalcThread;
2. private PVector position;
4. public void setup() {
5. size(500, 500);
6. background(255);
8. CalcThread = new CalculationThread(16);
9. CalcThread.start();
10. CalcThread.addUpdateListener(this);
12. position = new PVector(random(0, 450), random(0, 450));
13. }
15. public void update() {
16. position.x = random(0, 450);
17. position.y = random(0, 450);
18. }
20. public void draw() {
21. background(255);
23. fill(0);
24. rect(position.x, position.y, 50, 50);
25. }
Hope someone finds this useful!

Old P3D renderer for Processing 2

[13 Replies]
- 26-Jun-2012 01:33 AM
- Forum: Library and Tool Development
Hi,

Sat down a couple of hours yesterday and created a library with the old PGraphics3D.java which hopefully enables people with no OPENGL graphic card to still use Processing 2.

I can't test it myself since I have an OPENGL graphic card but please go ahead and try it out and I'll try and fix the issues that arrise.

It can be downloaded here. http://ixagon.se/oldp3d

Example included but posting here as well.
1. import ixagon.renderer.*;
3. void setup() {
4. size(400, 400, OldP3D.NOSTALGIA);
5. }
7. void draw() {
8. background(0);
9. fill(255);
10. rect(100, 100, 200, 200);
11. }

G4P, GTextField event is called on loosing focus

[2 Replies]
- 16-Feb-2012 02:28 AM
- Forum: Contributed Library Questions
Hi!

First of all, great library, really like it! I have a problem though.

When I create a GTextField like this
1. GTextField textField = new GTextField(parent, "Surface " + ss.getId(), 0, 0, 160, 20, false);
2. textField.setBorder(0);
3. textField.addEventHandler(this, "handleMyTextFieldEvents");
5. layerItems.add(new LayerItem(ss, textField));
And call handleMyTextFieldEvents
1. public void handleMyTextFieldEvents(GTextField t) {
2. for (int i = 0; i < layerItems.size(); i++) {
3. if (layerItems.get(i).getTextField() == t) {
4. PApplet.println(t.getText());
5. }
6. }
7. }
If I then click on a GTextField nothing happens, but when i click on another GTextField it prints the content of the previous GTextField.

Any suggestion on how to fix this behavior?

Thanks!

Use Swing or AWT for GUI with Jogl2?

[4 Replies]
- 29-Nov-2011 09:43 AM
- Forum: Integration and Hardware
Hi,

I need to use Swing or AWT GUI controllers for a project but still use the OPENGL renderer. Has anyone got that to work? I've read somewhere that it can be done with JOGL2.

I get it to work with a normal renderer, but as soon as I use OPENGL the components end up behind the scene.

I'm using the jogl-files from the Processing 2.0 package. This is what I got so far, that isn't working.
1. import java.awt.TextField;
2. import java.awt.event.ActionEvent;
3. import java.awt.event.ActionListener;
4. import processing.core.PApplet;
6. public class Jogl2 extends PApplet implements ActionListener {
8. /**
9. *
10. */
11. private static final long serialVersionUID = -2713698961386189021L;
13. private TextField input;
15. @Override
16. public void setup() {
17. size(400, 400, P3D);
19. input = new TextField("Input", 36);
20. input.addActionListener(this);
21. this.add(input);
23. }
25. @Override
26. public void draw() {
28. }
30. @Override
31. public void actionPerformed(ActionEvent e) {
32. System.out.println(input.getText());
33. }
35. /**
36. * @param args
37. */
38. static public void main(String args[]) {
39. PApplet.main(new String[] { jogl2.Jogl2.class.getName() });
40. }
42. }
Any help is much appreciated!

Can't find Java IO File when compiling

[6 Replies]
- 03-Oct-2011 05:57 AM
- Forum: Integration and Hardware
Hi guys,
this is probably just a stupid question, but I can't seem to get it right.

When compiling my Processing sketch it adds the data folder to the exported .app or .exe, this works fine when I use methods such as loadStrings, loadImage, loadFont, but when I use new File("data/filename.xml") it doesn't find the file in the compiled version.

Is there a way to use a relative path to the files when using new File?

Thanks

Load GLTexture from Thread while sketch is running

[2 Replies]
- 23-Sep-2011 06:14 AM
- Forum: Contributed Library Questions
Hey guys, I get a "Invalid memory access of location 0x318 rip=0x7fff85730328" error when running this code.
Seems like I can't create a new GLTexture object while the sketch is running, which is a bit weird. Code seems fine to me.

Any suggestions?

TextureTest.java
2. package texturetest;
4. import java.io.File;
5. import java.io.FilenameFilter;
6. import java.util.ArrayList;
8. import processing.core.PApplet;
9. import codeanticode.glgraphics.GLConstants;
10. import codeanticode.glgraphics.GLGraphicsOffScreen;
12. public class TextureTest extends PApplet {
14. /**
15. *
16. */
17. private static final long serialVersionUID = -8305191326600292350L;
19. private GLGraphicsOffScreen glos;
20. private ArrayList<Texture> textures;
21. private LoaderThread loaderThread;
23. private boolean keyreleased;
25. public void setup() {
26. size(screenWidth, screenHeight, GLConstants.GLGRAPHICS);
28. textures = new ArrayList<Texture>();
29. textures = loadImages("data/");
31. glos = new GLGraphicsOffScreen(this, width, height, false);
33. loaderThread = new LoaderThread(this, 1);
34. loaderThread.start();
36. keyreleased = false;
37. }
39. public void draw() {
40. glos.beginDraw();
41. glos.clear(0);
43. for (int i = 0; i < textures.size(); i++) {
44. Texture tex = textures.get(i);
45. if (tex.hasTexture() && !keyreleased)
46. glos.image(tex.getTexture(), i * 210, 0, 200, 200);
47. }
49. glos.endDraw();
51. image(glos.getTexture(), 0, 0, glos.width, glos.height);
52. }
54. public void keyPressed() {
55. keyreleased = true;
56. }
58. public void keyReleased() {
59. loaderThread.initializeTextures(textures);
60. keyreleased = false;
61. }
63. public ArrayList<Texture> loadImages(String path) {
64. FilenameFilter dirFilter = new FilenameFilter() {
65. public boolean accept(File dir, String name) {
66. return !name.startsWith(".");
67. }
68. };
70. ArrayList<Texture> t = new ArrayList<Texture>();
72. File filePath = new File(path);
73. String[] dirList = filePath.list(dirFilter);
74. if (filePath != null && filePath.list(dirFilter) != null) {
75. for (int i = 0; i < dirList.length; i++) {
76. File f = new File(path + dirList[i]);
77. if (f.isFile())
78. t.add(new Texture(this, path + dirList[i]));
79. }
80. }
81. return t;
82. }
84. public static void main(String _args[]) {
85. PApplet.main(new String[] { texturetest.TextureTest.class.getName() });
86. }
87. }
LoaderThread.java
2. package texturetest;
4. import java.util.ArrayList;
6. import processing.core.PApplet;
8. public class LoaderThread implements Runnable {
10. private Thread t;
11. private int sleepTime;
12. private ArrayList<Texture> textures;
13. private boolean updated;
15. public LoaderThread(PApplet parent, int sleepTime) {
16. this.sleepTime = sleepTime;
17. this.updated = true;
18. }
20. public void initializeTextures(ArrayList<Texture> textures) {
21. this.textures = textures;
22. this.updated = false;
23. }
25. public void run() {
26. Thread me = Thread.currentThread();
28. while (t == me) {
30. if (!updated) {
31. for (int i = 0; i < textures.size(); i++) {
32. textures.get(i).setTexture(textures.get(i).getFile());
33. textures.get(i).setHasTexture(true);
34. }
35. updated = true;
36. }
38. try {
39. Thread.sleep(sleepTime);
40. } catch (InterruptedException e) {
42. }
43. }
44. t = null;
45. }
47. void start() {
48. if (t == null) {
49. t = new Thread(this);
50. t.start();
51. }
52. }
54. void stop() {
55. if (t != null) {
56. t.interrupt();
57. }
58. t = null;
59. synchronized (this) {
60. notifyAll();
61. }
62. }
64. public void dispose() {
65. stop();
66. }
68. }
Texture.java
2. package texturetest;
4. import processing.core.PApplet;
5. import codeanticode.glgraphics.GLTexture;
7. public class Texture {
9. private PApplet parent;
10. private GLTexture texture;
11. private boolean hasTexture;
12. private String file;
14. public Texture(PApplet parent, String file) {
15. this.parent = parent;
16. this.file = file;
17. this.hasTexture = false;
18. }
20. public GLTexture getTexture() {
21. return texture;
22. }
24. public void setTexture(String file) {
25. this.texture = new GLTexture(parent, file);
26. }
28. public boolean hasTexture() {
29. return hasTexture;
30. }
32. public void setHasTexture(boolean hasTexture) {
33. this.hasTexture = hasTexture;
34. }
36. public String getFile() {
37. return file;
38. }
40. public void setFile(String file) {
41. this.file = file;
42. }
44. }
Thanks!

GSVideo 64 bit crash when playing a movie with audio

[2 Replies]
- 20-Sep-2011 04:47 AM
- Forum: Contributed Library Questions
Hi guys,

I've encountered quiet a big problem... Here's the deal. We started working on a project in the Processing IDE a couple of months back, we tried playing movies with audio and everything worked fine. After a while when the project became bigger we emerged to the Eclipse environment and changed to GSVideo 64-bit, BUT, we never tried playing movies with audio until now, 2 weeks before deadline.

When playing a movie with audio the application crashes, I get this dialog window.

And here's the crash report.
2. Process: java [1771]
3. Path: /usr/bin/java
4. Identifier: com.apple.javajdk16.cmd
5. Version: 1.0 (1.0)
6. Code Type: X86-64 (Native)
7. Parent Process: eclipse [144]
9. Date/Time: 2011-09-20 13:40:19.494 +0200
10. OS Version: Mac OS X 10.7.1 (11B26)
11. Report Version: 9
13. Interval Since Last Report: 496373 sec
14. Crashes Since Last Report: 11
15. Per-App Interval Since Last Report: 29842 sec
16. Per-App Crashes Since Last Report: 7
17. Anonymous UUID: xxx
19. Crashed Thread: 34
21. Exception Type: EXC_BAD_ACCESS (SIGSEGV)
22. Exception Codes: KERN_INVALID_ADDRESS at 0x0000000013801e1e
24. VM Regions Near 0x13801e1e:
25. -->
26. __TEXT 000000010256d000-0000000102575000 [ 32K] r-x/rwx SM=COW /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java
28. Application Specific Information:
29. objc[1771]: garbage collection is OFF
Please, please, please...! Help me someone, it would take ages to copy/paste the code back into the Processing IDE.
Thanks!

Jonas

Absurd high CPU usage running Processing 1.5.1 on Lion (no sketches).

[1 Reply]
- 19-Sep-2011 01:18 AM
- Forum: Integration and Hardware
Hi,
When starting Processing 1.5.1 my CPU usage goes up to ~200%.

Running it on a i7 processor with 4gb ram, this seems strange.

Processing 2.0a1 works fine.

How can this be?

Thanks.

Automatically add jogl and gsvideo library files to Mac OS X application bundle.

[2 Replies]
- 27-Aug-2011 02:42 PM
- Forum: Integration and Hardware
Hi,

I got a quiet big sketch running in Eclipse with GLGraphics and GSVideo. Everything works fine to run from the Eclipse environment.

But when I compile the sketch by "Export" > "Other" > "Mac OS X application bundle", it doesn't add the jnilib files that comes with jogl and GSVideo to the bundle, it only adds the jar-files.

I have linked libgluegen-rt.jnilib, libjogl_awt.jnilib, libjogl_cg.jnilib and libjogl.jnilib to jogl.jar and gluegen-rt.jar in "Java Build Path" > Libraries > Native library location. And same thing with the jnilib files to GSVideo.

I can get it working by rightclicking the compiled bundle and click "Show Package Contents" and go to Contents > Resources > Java and add the jnilib files, but I want to add them when I Export it from Eclipse.

Any suggestions?

Many thanks!

Jonas

ControlP5 update toggler but dont run method

[1 Reply]
- 24-May-2011 07:10 AM
- Forum: Contributed Library Questions
Hi!

I'm having problems with ControlP5 Toggle. I'm trying to make it update the toggler by doing this.
1. ((Toggle)controlP5.controller("togglePhoto")).setState(true);
This works, but it also runs the method "togglePhoto".
Is there a way to only update the value of the toggler without running the method?

Thanks!

Check whether on top or bottom of Polygon

[2 Replies]
- 08-Mar-2011 02:41 AM
- Forum: Programming Questions
Hey!

I have a polygon which looks something like this, it changes every now and then, so it's not a solid shape.

What I need to do is to check whether a field (a class inheriting pvector) is on top or below the polygon.

The left and right vertical lines are always there but I can't for the life of it figure out how to make it work.

It's easy to check if it's inside or not with .contains(); but how do I check if its on top or bottom?

Would be great if someone could help me out here.

Thanks!

Best regards,

Jonas

PVector, ArrayList, fiddle...

[12 Replies]
- 22-Oct-2010 05:54 AM
- Forum: Programming Questions
Hey,

sorry for the topic, but I couldn't figure out how to ask this in short words.

I have an ArrayList with a bunch of PVectors in it. And whenever a new Blob appears (Blob detection) I want to add this to the ArrayList, but only if the blob doesn't intersect with a radius of 20 pixels with a PVector in that ArrayList.

Can anyone hint me in the right direction with some pseudo code? Would appreciate it greatly!

Best,

Jonas

GSVideo + Proclipsing / Eclipse

[19 Replies]
- 14-Oct-2010 02:13 AM
- Forum: Contributed Library Questions
Hey,
I'm having trouble getting GSVideo to work in Eclipse. It works perfectly if I run the example codes in Processing.

I'm getting the error:
1. Exception in thread "Animation Thread" java.lang.NoClassDefFoundError: com/sun/jna/Platform
2. at codeanticode.gsvideo.GSLibraryPath.get(GSLibraryPath.java:44)
3. at codeanticode.gsvideo.GSVideo.setMacOSXPath(GSVideo.java:153)
4. at codeanticode.gsvideo.GSVideo.init(GSVideo.java:74)
5. at codeanticode.gsvideo.GSMovie.<init>(GSMovie.java:88)
6. at codeanticode.gsvideo.GSMovie.<init>(GSMovie.java:65)
7. at gscap.GSCap.setup(GSCap.java:15)
8. at processing.core.PApplet.handleDraw(PApplet.java:1583)
9. at processing.core.PApplet.run(PApplet.java:1503)
10. at java.lang.Thread.run(Thread.java:637)
11. Caused by: java.lang.ClassNotFoundException: com.sun.jna.Platform
12. at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
13. at java.security.AccessController.doPrivileged(Native Method)
14. at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
15. at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
16. at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
17. at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
18. ... 9 more
My main class is called GSCap and I'm running Mac OS X 10.6.4.

Any clues why this isn't working?

Thanks!

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