Which version of lwjgl needed to Compile the simple Examples

[mac]

Hi,

and again im a bit confused  :shock:
I dowloaded some of the Nehe Ports avaible on :

http://chman-area.tuxfamily.org/links.html

To be exakt i tired to launch the Lesson 06 - Simple Rotate Cube

So, good, i setup the Project in JBuilder 9 (i know that IDE very good)

All needed jars were found, but the Lesson seems far from Compileable ?

As example (static init):

   

static
	{
		try
		{
			  // Create The Display Mode
			int mode = -1;
			DisplayMode[] modes = Display.getAvailableDisplayModes();
			for(int i = 0; i < modes.length; i ++)
			{
				if(modes[i].width == 800 &&
				   modes[i].height == 600 &&
				   modes[i].bpp >= 16)
				{
					mode = i;
					break;
				}
			}

			[b]Display.create(modes[i]);[/b]		}
		catch(Exception e)
		{
			System.exit(1);
		}
	}

Is not Compileable, the reason for this seems that the Method has
changed into

Display.setDisplayMode(Displaymode)

.
And if i go down the Source Code from Lesson 6 more such things come
to Daylight eg.
In Class Gl im unable to find a Method called

GL.swapBuffers()

Im using 0.7 of lwjgl is it the right one for these Examples ?

thx,
Jens

[Matzon]

is the version of lwjgl you're using pre-0.7 or the one in CVS at the moment?

if it's the one in cvs, you should be able to do it like so:

/**
 * Nehe06.java
 *
 * Author: Thomas Hourdel (thomas.hourdel@libertysurf.fr)
 * Date: 06/01/2003
 *
 * Port of the NeHe OpenGL Tutorial (Lesson 6: "Texture Mapping")
 * to Java using the LWJGL interface to OpenGL.
 */

/** 
 * Standard includes
 */

import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.IntBuffer;

import org.lwjgl.*;
import org.lwjgl.opengl.*;
import org.lwjgl.input.*;

/** Main class
 */

public final class Nehe06 {

  // GL variables...
  public static final GLWindow glw =
    new GLWindow("Basic Window", 50, 50, 640, 480, 16, 0, 0, 0);

  // GL context creation...
  static {
    try {
      glw.create(); // Create The Opengl Context
    } catch (Exception e) {
      System.exit(1);
    }
  }

  /** Global variable declaration */
  private static boolean finished;
  private static float xrot; // X Rotation
  private static float yrot; // Y Rotation
  private static float zrot; // Z Rotation

  private static int texture; // Storage For One Texture

  /** 
   * Constructor (unused here)  
   */
  private Nehe06() {
  }

  /** 
   * Main method
   */
  public static void main(String args[]) {
    try {
      init(); // Init Opengl

      while (!finished) {
        Keyboard.poll(); // Poll The Keyboard
        mainLoop(); // Launch The Main Loop
        render(); // Render To Screen
        glw.tick();
        glw.paint(); // Swap Opengl Buffers
      }
    } catch (Throwable t) {
      t.printStackTrace();
    } finally {
      cleanup();
    }
  }

  /** 
   * Init opengl
   */
  private final static void init() throws Exception {

    texture = loadTexture("data/nehe.png");

    Keyboard.create(); // Create The Keyboard

    GL.glEnable(GL.GL_TEXTURE_2D); // Enable Texture Mapping
    GL.glShadeModel(GL.GL_SMOOTH); // Enable Smooth Shading
    GL.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // Black Background  
    GL.glClearDepth(1.0); // Depth Buffer Setup
    GL.glEnable(GL.GL_DEPTH_TEST); // Enables Depth Testing
    GL.glDepthFunc(GL.GL_LEQUAL); // The Type Of Depth Testing To Do

    GL.glMatrixMode(GL.GL_PROJECTION); // Select The Projection Matrix
    GL.glLoadIdentity(); // Reset The Projection Matrix

    // Calculate The Aspect Ratio Of The Window
    GLU.gluPerspective(
      45.0f,
      (float) Display.getWidth() / (float) Display.getHeight(),
      0.1f,
      100.0f);
    GL.glMatrixMode(GL.GL_MODELVIEW); // Select The Modelview Matrix

    // Really Nice Perspective Calculations
    GL.glHint(GL.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST);

    //sync to monitor
    GLCaps.determineAvailableExtensions();
    if(GLCaps.WGL_EXT_swap_control) {
      GL.wglSwapIntervalEXT(1);
    }
  }

  /** 
   * Main loop
   */
  private final static void mainLoop() {
    processKeyboard(); // Get Keyboard Events
    processWindow(); // Get Window Events
  }

  /** 
   * Rendering method
   */
  private final static void render() {
    GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);  // Clear Screen And Depth Buffer
    GL.glLoadIdentity();                                          // Reset The Current Modelview Matrix

    GL.glTranslatef(0.0f, 0.0f, -5.0f);

    GL.glRotatef(xrot, 1.0f, 0.0f, 0.0f);
    GL.glRotatef(yrot, 0.0f, 1.0f, 0.0f);
    GL.glRotatef(zrot, 0.0f, 0.0f, 1.0f);

    GL.glBindTexture(GL.GL_TEXTURE_2D, texture);

    GL.glBegin(GL.GL_QUADS); {
      // Front Face
      GL.glTexCoord2f(0.0f, 0.0f);
      GL.glVertex3f(-1.0f, -1.0f, 1.0f);
      GL.glTexCoord2f(1.0f, 0.0f);
      GL.glVertex3f(1.0f, -1.0f, 1.0f);
      GL.glTexCoord2f(1.0f, 1.0f);
      GL.glVertex3f(1.0f, 1.0f, 1.0f);
      GL.glTexCoord2f(0.0f, 1.0f);
      GL.glVertex3f(-1.0f, 1.0f, 1.0f);
      // Back Face
      GL.glTexCoord2f(1.0f, 0.0f);
      GL.glVertex3f(-1.0f, -1.0f, -1.0f);
      GL.glTexCoord2f(1.0f, 1.0f);
      GL.glVertex3f(-1.0f, 1.0f, -1.0f);
      GL.glTexCoord2f(0.0f, 1.0f);
      GL.glVertex3f(1.0f, 1.0f, -1.0f);
      GL.glTexCoord2f(0.0f, 0.0f);
      GL.glVertex3f(1.0f, -1.0f, -1.0f);
      // Top Face
      GL.glTexCoord2f(0.0f, 1.0f);
      GL.glVertex3f(-1.0f, 1.0f, -1.0f);
      GL.glTexCoord2f(0.0f, 0.0f);
      GL.glVertex3f(-1.0f, 1.0f, 1.0f);
      GL.glTexCoord2f(1.0f, 0.0f);
      GL.glVertex3f(1.0f, 1.0f, 1.0f);
      GL.glTexCoord2f(1.0f, 1.0f);
      GL.glVertex3f(1.0f, 1.0f, -1.0f);
      // Bottom Face
      GL.glTexCoord2f(1.0f, 1.0f);
      GL.glVertex3f(-1.0f, -1.0f, -1.0f);
      GL.glTexCoord2f(0.0f, 1.0f);
      GL.glVertex3f(1.0f, -1.0f, -1.0f);
      GL.glTexCoord2f(0.0f, 0.0f);
      GL.glVertex3f(1.0f, -1.0f, 1.0f);
      GL.glTexCoord2f(1.0f, 0.0f);
      GL.glVertex3f(-1.0f, -1.0f, 1.0f);
      // Right face
      GL.glTexCoord2f(1.0f, 0.0f);
      GL.glVertex3f(1.0f, -1.0f, -1.0f);
      GL.glTexCoord2f(1.0f, 1.0f);
      GL.glVertex3f(1.0f, 1.0f, -1.0f);
      GL.glTexCoord2f(0.0f, 1.0f);
      GL.glVertex3f(1.0f, 1.0f, 1.0f);
      GL.glTexCoord2f(0.0f, 0.0f);
      GL.glVertex3f(1.0f, -1.0f, 1.0f);
      // Left Face
      GL.glTexCoord2f(0.0f, 0.0f);
      GL.glVertex3f(-1.0f, -1.0f, -1.0f);
      GL.glTexCoord2f(1.0f, 0.0f);
      GL.glVertex3f(-1.0f, -1.0f, 1.0f);
      GL.glTexCoord2f(1.0f, 1.0f);
      GL.glVertex3f(-1.0f, 1.0f, 1.0f);
      GL.glTexCoord2f(0.0f, 1.0f);
      GL.glVertex3f(-1.0f, 1.0f, -1.0f);
    }
    GL.glEnd();

    xrot += 0.3f;
    yrot += 0.2f;
    zrot += 0.4f;
  }

  /** 
   * Process keyboard events
   */
  private final static void processKeyboard() {
    if (Keyboard.isKeyDown(Keyboard.KEY_ESCAPE))
      finished = true;
  }

  /** 
   * Process window events
   */
  private final static void processWindow() {
    if (glw.isCloseRequested()) {
      finished = true;
    }
  }

  /** 
   * Cleanup
   */
  private final static void cleanup() {
    Keyboard.destroy(); // Destroy The Keyboard
    glw.destroy(); // Destroy The Opengl Context
  }

  /** 
   * Load a texture in OpenGL memory
   */

  private final static int loadTexture(String path) {
    Image image = (new javax.swing.ImageIcon(path)).getImage();

    // Exctract The Image
    BufferedImage tex =
      new BufferedImage(
        image.getWidth(null),
        image.getHeight(null),
        BufferedImage.TYPE_3BYTE_BGR);
    Graphics2D g = (Graphics2D) tex.getGraphics();
    g.drawImage(image, null, null);
    g.dispose();

    // Flip Image
    AffineTransform tx = AffineTransform.getScaleInstance(1, -1);
    tx.translate(0, -image.getHeight(null));
    AffineTransformOp op =
      new AffineTransformOp(tx, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
    tex = op.filter(tex, null);

    // Put Image In Memory
    ByteBuffer scratch =
      ByteBuffer.allocateDirect(4 * tex.getWidth() * tex.getHeight());

    byte data[] =
      (byte[]) tex.getRaster().getDataElements(
        0,
        0,
        tex.getWidth(),
        tex.getHeight(),
        null);
    scratch.clear();
    scratch.put(data);

    // Create A IntBuffer For Image Address In Memory   
    IntBuffer buf =
      ByteBuffer.allocateDirect(4).order(ByteOrder.nativeOrder()).asIntBuffer();
    GL.glGenTextures(1, buf); // Create Texture In OpenGL   

    GL.glBindTexture(GL.GL_TEXTURE_2D, buf.get(0));
    // Typical Texture Generation Using Data From The Image

    // Linear Filtering
    GL.glTexParameteri(
      GL.GL_TEXTURE_2D,
      GL.GL_TEXTURE_MIN_FILTER,
      GL.GL_LINEAR);
    // Linear Filtering
    GL.glTexParameteri(
      GL.GL_TEXTURE_2D,
      GL.GL_TEXTURE_MAG_FILTER,
      GL.GL_LINEAR);

    // Generate The Texture
    GL.glTexImage2D(
      GL.GL_TEXTURE_2D,
      0,
      GL.GL_RGB,
      tex.getWidth(),
      tex.getHeight(),
      0,
      GL.GL_RGB,
      GL.GL_UNSIGNED_BYTE,
      scratch);

    return buf.get(0); // Return Image Address In Memory
  }
}

[mac]

Thx 4 fast Answer, i love that  

Im using the actual avaible version 0.7 from http://www.lwjgl.org/

I will try it now.

- Jens

[mac]

Hmm,

it must work if i could get the latest Sources...
I found the GLWindow Class in the repository, this one of two
i cant find while try to Compile the sourcees

Im new to CVS, what name "modulename" will the CVS Client have to Checkout the whole Project ?

- Jens

[Matzon]

I'll send you a working copy - but it will have to wait some 8 hours, since I need to get to work...

[mac]

Fine,

i found out were to find the Modulenames in CVS  :roll:
Hope that i can make the first test with LWJGL for my PlugIn
Interface for my Player Project.
Actually i have designed some Interfaces and Services for
PlugIns to use.

- thx
Jens

[Matzon]

just following up... you need binaries from me ?

[mac]

Yep,

i was trying Smart CVS (Webstart Version)
and was unable to checkout the project, i fyou
could post also some "were to checkout the modules" ?
I have tried this with module name "lwjgl" , but the source never
saw my harddisk  :cry:

If possible send the binaries to this mail address :

java-code@mac-systems.de

thx,
Jens

[mac]

Thx 4 Binaries.

Have done the first simple things.
Seems to be very stable and performs very well.


- Jens