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/*
* Copyright (c) 2008 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.
*
*/
package demos.cubefbo;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import javax.media.opengl.DebugGL2;
import javax.media.opengl.GL;
import javax.media.opengl.GL2ES1;
import javax.media.opengl.GL2;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.awt.GLCanvas;
class FBCubes implements GLEventListener, MouseListener, MouseMotionListener {
private static final int FBO_SIZE = 128;
public FBCubes () {
cubeInner = new CubeObject(false);
cubeMiddle = new CubeObject(true);
cubeOuter = new CubeObject(true);
fbo1 = new FBObject(FBO_SIZE, FBO_SIZE);
fbo2 = new FBObject(FBO_SIZE, FBO_SIZE);
}
public void init(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
drawable.setGL(new DebugGL2(gl));
fbo1.init(gl);
fbo2.init(gl);
}
int x, y, width, height;
float motionIncr;
float xRot, yRot;
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
cubeOuter.reshape(drawable.getGL().getGL2(), x, y, width, height);
motionIncr = 180.f / Math.max(width, height);
}
public void display(GLAutoDrawable drawable) {
// System.out.println("display");
GL2 gl = drawable.getGL().getGL2();
fbo1.bind(gl);
cubeInner.reshape(gl, 0, 0, FBO_SIZE, FBO_SIZE);
cubeInner.display(gl, xRot, yRot);
fbo1.unbind(gl);
FBObject tex = fbo1;
FBObject rend = fbo2;
int MAX_ITER = 1;
for (int i = 0; i < MAX_ITER; i++) {
rend.bind(gl);
gl.glEnable (GL.GL_TEXTURE_2D);
gl.glBindTexture(GL.GL_TEXTURE_2D, tex.getTextureName()); // to use it ..
cubeMiddle.reshape(gl, 0, 0, FBO_SIZE, FBO_SIZE);
cubeMiddle.display(gl, xRot, yRot);
gl.glBindTexture(GL.GL_TEXTURE_2D, 0);
gl.glDisable (GL.GL_TEXTURE_2D);
rend.unbind(gl);
FBObject tmp = tex;
tex = rend;
rend = tmp;
}
// System.out.println("display .. p6");
cubeOuter.reshape(gl, x, y, width, height);
// System.out.println("display .. p7");
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glClearColor(0, 0, 0, 1);
gl.glEnable (GL.GL_TEXTURE_2D);
gl.glBindTexture(GL.GL_TEXTURE_2D, tex.getTextureName()); // to use it ..
cubeOuter.display(gl, xRot, yRot);
// System.out.println("display .. p8");
gl.glBindTexture(GL.GL_TEXTURE_2D, 0);
gl.glDisable (GL.GL_TEXTURE_2D);
}
public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {
}
private boolean dragging;
private int lastDragX;
private int lastDragY;
public void mouseClicked(MouseEvent e) {}
public void mousePressed(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
dragging = false;
}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseDragged(MouseEvent e) {
if (!dragging) {
dragging = true;
lastDragX = e.getX();
lastDragY = e.getY();
} else {
yRot += (e.getX() - lastDragX) * motionIncr;
xRot += (e.getY() - lastDragY) * motionIncr;
lastDragX = e.getX();
lastDragY = e.getY();
}
}
public void mouseMoved(MouseEvent e) {}
CubeObject cubeInner;
CubeObject cubeMiddle;
CubeObject cubeOuter;
FBObject fbo1;
FBObject fbo2;
}
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