Attachment 102 Details for Bug 302 – Test case

Test case

gluBuild2DMipmapsTEST.java (text/plain), 5.30 KB, created by Sven Gothel on 2007-05-23 23:46:00 CEST

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Creator: Sven Gothel

Created: 2007-05-23 23:46:00 CEST

Size: 5.30 KB

patch

obsolete

>
>import javax.swing.JFrame;
>import javax.swing.JOptionPane;
>
>import javax.imageio.ImageIO;
>import javax.media.opengl.*;
>import javax.media.opengl.glu.GLU;
>import javax.swing.JPanel;
>import java.awt.BorderLayout;
>import java.awt.image.BufferedImage;
>import java.io.File;
>import java.io.FileInputStream;
>import java.nio.ByteBuffer;
>
>import com.sun.opengl.util.Animator;
>
>public class gluBuild2DMipmapsTEST extends JFrame
>{
>	public static void main(String[] args)
>	{
>		int result = JOptionPane.showConfirmDialog(null, "Do you want to disable java implementation of GLU",
>				"jogl.glu.nojava", JOptionPane.YES_NO_OPTION);
>		if(result == JOptionPane.YES_OPTION)
>			System.setProperty("jogl.glu.nojava", "true");		//Disable java implementation
>		else
>			System.setProperty("jogl.glu.nojava", "false");		//Enable  java implementation
>		new gluBuild2DMipmapsTEST().setVisible(true);
>	}
>	
>	private GLCanvas glScene = null;
>	private JPanel jContentPane = null;
>	private int texture[] = new int[1];
>
>	public gluBuild2DMipmapsTEST()
>	{
>		super("gluBuild2DMipmaps TEST");
>		initialize();
>	}
>
>	private void initialize()
>	{
>        this.setContentPane(getJContentPane());
>		this.pack();
>		this.setLocationRelativeTo(null);
>        this.setDefaultCloseOperation(EXIT_ON_CLOSE);
>	}
>
>	private JPanel getJContentPane()
>	{
>		if(jContentPane == null)
>		{
>			jContentPane = new JPanel();
>			jContentPane.setLayout(new BorderLayout());
>			jContentPane.add(getGlScene(), BorderLayout.CENTER);
>		}
>		return jContentPane;
>	}
>	private GLCanvas getGlScene()
>	{
>		if(glScene == null)
>		{
>			glScene = new GLCanvas();
>			glScene.addGLEventListener(new Scene());
>			glScene.setSize(400, 300);
>		}
>		return glScene;
>	}
>	
>	class Scene implements GLEventListener
>	{
>		private Animator animator;
>
>		public void displayChanged(GLAutoDrawable glDrawable, boolean modeChanged, boolean deviceChanged){}
>		public void reshape(GLAutoDrawable glDrawable, int x, int y, int width, int height)
>		{
>			final GL gl = glDrawable.getGL();
>			final GLU glu = new GLU();
>
>			if(height <= 0) height = 1;
>
>			gl.glViewport(0, 0, width, height);
>			gl.glMatrixMode(GL.GL_PROJECTION);
>			gl.glLoadIdentity();
>			glu.gluPerspective(45.0f, width / height, 0.1f, 1000.0f);
>			gl.glMatrixMode(GL.GL_MODELVIEW);
>			gl.glLoadIdentity();
>		}
>
>		public void init(GLAutoDrawable glDrawable)
>		{
>			final GL gl = glDrawable.getGL();
>			
>			if(!loadTexture(glDrawable))
>			{
>				JOptionPane.showMessageDialog(null, "Fail to load texture. Exiting.");
>				System.exit(0);
>			}
>			
>			gl.glEnable(GL.GL_TEXTURE2);
>			gl.glDepthFunc(GL.GL_LEQUAL);
>			gl.glEnable(GL.GL_DEPTH_TEST);
>			
>			animator = new Animator(glDrawable);
>			animator.start();
>		}
>		
>		private boolean loadTexture(GLAutoDrawable glDrawable)
>		{
>			BufferedImage image;
>			try
>			{
>				image = ImageIO.read(new FileInputStream(new File("PLATEOX2.bmp")));
>			}
>			catch(Exception e)
>			{
>				return false;
>			}
>			
>			int width = image.getWidth();
>			int height = image.getHeight();
>			byte[] pixels = new byte[width*height*3];
>			for(int y = 0; y < height; y++)
>			{
>				for(int x = 0; x < width; x++)
>				{
>					int i = (height-1-y)*width+x;		//Flip picture
>					
>					int color = image.getRGB(x, y);
>					pixels[3*i  ] = (byte) ((color >> 16) & 0xFF);		//r
>					pixels[3*i+1] = (byte) ((color >>  8) & 0xFF);		//g
>					pixels[3*i+2] = (byte) ( color        & 0xFF);		//b
>				}
>			}
>			
>			GL gl = glDrawable.getGL();
>			gl.glGenTextures(1, texture, 0);	//Texture offset = 0
>			
>			gl.glBindTexture(GL.GL_TEXTURE_2D, texture[0]);
>			
>			gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1);
>			gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
>			gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
>
>			new GLU().gluBuild2DMipmaps(GL.GL_TEXTURE_2D, GL.GL_RGB,
>						width, height, GL.GL_RGB, GL.GL_UNSIGNED_BYTE,
>						ByteBuffer.wrap(pixels));
>			
>			return gl.glIsTexture(texture[0]);
>		}
>		
>		public void display(GLAutoDrawable glDrawable)
>		{
>			final GL gl = glDrawable.getGL();
>			
>			gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
>			gl.glLoadIdentity();
>			
>			gl.glEnable(GL.GL_TEXTURE_2D);
>			gl.glBindTexture(GL.GL_TEXTURE_2D, texture[0]);
>			
>			begin2D(glDrawable);
>			gl.glBegin(GL.GL_QUADS);
>				float width  = glDrawable.getWidth();
>				float height = glDrawable.getHeight();
>				gl.glTexCoord2f(0.0f, 1.0f);	gl.glVertex3f(-width,  height, 0);
>				gl.glTexCoord2f(0.0f, 0.0f);	gl.glVertex3f(-width, -height, 0);
>				gl.glTexCoord2f(1.0f, 0.0f);	gl.glVertex3f( width, -height, 0);
>				gl.glTexCoord2f(1.0f, 1.0f);	gl.glVertex3f( width,  height, 0);
>			gl.glEnd();
>			end2D(glDrawable);
>		}
>		
>		private void begin2D(GLAutoDrawable glDrawable)
>		{
>			final GL gl = glDrawable.getGL();
>
>			gl.glMatrixMode(GL.GL_PROJECTION);
>			gl.glPushMatrix();
>			gl.glLoadIdentity();
>			gl.glOrtho(0, glDrawable.getWidth(), 0, glDrawable.getHeight(), -1, 1);
>
>			gl.glMatrixMode(GL.GL_MODELVIEW);
>			gl.glPushMatrix();
>			gl.glLoadIdentity();
>		}
>		
>		private void end2D(GLAutoDrawable glDrawable)
>		{
>			final GL gl = glDrawable.getGL();
>			
>			gl.glMatrixMode(GL.GL_PROJECTION);
>			gl.glPopMatrix();
>
>			gl.glMatrixMode(GL.GL_MODELVIEW);
>			gl.glPopMatrix();
>		}
>	}
>}

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