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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.readbuffer;
import javax.media.opengl.*;
public class ReadBufferBase implements GLEventListener {
public boolean glDebug = false ;
public boolean glTrace = false ;
protected GLDrawable externalRead;
ReadBufferUtil readBufferUtil = new ReadBufferUtil();
public ReadBufferBase (GLDrawable externalRead) {
this.externalRead = externalRead ;
}
public void init(GLAutoDrawable drawable) {
GL _gl = drawable.getGL();
_gl.glGetError(); // flush error ..
if(glDebug) {
try {
_gl = _gl.getContext().setGL( GLPipelineFactory.create("javax.media.opengl.Debug", null, _gl, null) );
} catch (Exception e) {e.printStackTrace();}
}
if(glTrace) {
try {
_gl = _gl.getContext().setGL( GLPipelineFactory.create("javax.media.opengl.Trace", null, _gl, new Object[] { System.err } ) );
} catch (Exception e) {e.printStackTrace();}
}
System.out.println(_gl);
_gl.getContext().setGLReadDrawable(externalRead);
if(_gl.isGL2GL3()) {
_gl.getGL2GL3().glReadBuffer(GL2GL3.GL_FRONT);
}
System.out.println("---------------------------");
System.out.println(_gl.getContext());
System.out.println("---------------------------");
}
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
}
public void dispose(GLAutoDrawable drawable) {
readBufferUtil.dispose(drawable.getGL());
}
public void display(GLAutoDrawable drawable) {
GL gl = drawable.getGL();
readBufferUtil.fetchOffscreenTexture(drawable, gl);
}
}
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