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/*
* Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package demos.texture;
import com.sun.opengl.util.texture.Texture;
import com.sun.opengl.util.texture.TextureCoords;
import com.sun.opengl.util.texture.TextureIO;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import javax.media.opengl.DebugGL2;
import javax.media.opengl.GL;
import javax.media.opengl.GL2;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.awt.GLCanvas;
import javax.media.opengl.glu.GLU;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPopupMenu;
import javax.swing.KeyStroke;
/** Demonstrates simple use of the TextureIO texture loader. */
public class TestTexture implements GLEventListener {
public static void main(String[] args) {
new TestTexture().run(args);
}
private File curDir;
private void run(String[] args) {
JPopupMenu.setDefaultLightWeightPopupEnabled(false);
JFrame frame = new JFrame("Texture Loader Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final GLCanvas canvas = new GLCanvas();
JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("File");
JMenuItem item = new JMenuItem("Open texture...");
item.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser chooser = new JFileChooser(curDir);
int res = chooser.showOpenDialog(null);
if (res == JFileChooser.APPROVE_OPTION) {
File chosen = chooser.getSelectedFile();
if (chosen != null) {
curDir = chosen.getParentFile();
setTextureFile(chosen);
canvas.repaint();
}
}
}
});
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_MASK));
menu.add(item);
item = new JMenuItem("Flush texture");
item.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
flushTexture();
canvas.repaint();
}
});
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_MASK));
menu.add(item);
item = new JMenuItem("Exit");
item.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q, InputEvent.CTRL_MASK));
menu.add(item);
menuBar.add(menu);
canvas.addGLEventListener(this);
frame.getContentPane().add(canvas);
frame.setJMenuBar(menuBar);
frame.setSize(800, 600);
frame.setVisible(true);
}
private boolean newTexture;
private boolean flushTexture;
private File file;
private Texture texture;
private GLU glu = new GLU();
public void setTextureFile(File file) {
this.file = file;
newTexture = true;
}
public void flushTexture() {
flushTexture = true;
}
public void init(GLAutoDrawable drawable) {
GL gl = drawable.getGL();
drawable.setGL(new DebugGL2(gl.getGL2()));
gl.glClearColor(0, 0, 0, 0);
gl.glEnable(GL.GL_DEPTH_TEST);
}
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
GL gl = drawable.getGL();
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glLoadIdentity();
glu.gluOrtho2D(0, 1, 0, 1);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
}
public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
if (flushTexture) {
flushTexture = false;
if (texture != null) {
texture.dispose();
texture = null;
}
}
if (newTexture) {
newTexture = false;
if (texture != null) {
texture.dispose();
texture = null;
}
try {
System.err.println("Loading texture...");
texture = TextureIO.newTexture(file, true);
System.err.println("Texture estimated memory size = " + texture.getEstimatedMemorySize());
} catch (IOException e) {
e.printStackTrace();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
e.printStackTrace(new PrintStream(bos));
JOptionPane.showMessageDialog(null,
bos.toString(),
"Error loading texture",
JOptionPane.ERROR_MESSAGE);
return;
}
}
if (texture != null) {
texture.enable();
texture.bind();
gl.glTexEnvi(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL.GL_REPLACE);
TextureCoords coords = texture.getImageTexCoords();
gl.glBegin(GL2.GL_QUADS);
gl.glTexCoord2f(coords.left(), coords.bottom());
gl.glVertex3f(0, 0, 0);
gl.glTexCoord2f(coords.right(), coords.bottom());
gl.glVertex3f(1, 0, 0);
gl.glTexCoord2f(coords.right(), coords.top());
gl.glVertex3f(1, 1, 0);
gl.glTexCoord2f(coords.left(), coords.top());
gl.glVertex3f(0, 1, 0);
gl.glEnd();
texture.disable();
}
}
public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {}
}
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