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authorKenneth Russel <[email protected]>2007-01-20 19:33:47 +0000
committerKenneth Russel <[email protected]>2007-01-20 19:33:47 +0000
commit1452e67ee4c6dc1da54119c86e37225ac6b3b559 (patch)
treee7209e010d63aba59f8916184d2fa53847719bb1 /src/classes/com/sun/opengl/impl/GLObjectTracker.java
parent90b6edb66cbc57866e57b57078b22c1994eeb76a (diff)
Added 3D rendering methods to TextureRenderer and TextRenderer on
request of several people on javagaming.org forums. Refactored existing 2D rendering support in these classes in terms of the new 3D methods. Wrote new TextCube demo illustrating how to render 2D text in 3D using the TextRenderer. Factored out FPS counter rendering into new FPSCounter utility class and updated TestTextRenderer and FlyingText demos. git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@1092 232f8b59-042b-4e1e-8c03-345bb8c30851
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generated by cgit v1.2.3 (git 2.39.1) at 2025-05-10 16:01:40 +0000
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/*
 * Copyright (c) 2003 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 com.jogamp.opengl.impl;

import java.util.*;
import javax.media.opengl.*;

/** Encapsulates the implementation of most of the GLAutoDrawable's
    methods to be able to share it between GLCanvas and GLJPanel. */

public class GLDrawableHelper {
  private volatile List listeners = new ArrayList();
  private static final boolean DEBUG = Debug.debug("GLDrawableHelper");
  private static final boolean VERBOSE = Debug.verbose();
  private static final boolean NVIDIA_CRASH_WORKAROUND = Debug.isPropertyDefined("jogl.nvidia.crash.workaround", true);
  private boolean autoSwapBufferMode = true;

  public GLDrawableHelper() {
  }

  public synchronized String toString() {
    StringBuffer sb = new StringBuffer();
    sb.append("GLEventListeners num "+listeners.size()+" [");
    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
      sb.append(iter.next()+", ");
    }
    sb.append("]");
    return sb.toString();
  }

  public synchronized void addGLEventListener(GLEventListener listener) {
    List newListeners = (List) ((ArrayList) listeners).clone();
    newListeners.add(listener);
    listeners = newListeners;
  }
  
  public synchronized void removeGLEventListener(GLEventListener listener) {
    List newListeners = (List) ((ArrayList) listeners).clone();
    newListeners.remove(listener);
    listeners = newListeners;
  }

  public synchronized void dispose(GLAutoDrawable drawable) {
    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
      ((GLEventListener) iter.next()).dispose(drawable);
    }
  }

  public void init(GLAutoDrawable drawable) {
    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
      ((GLEventListener) iter.next()).init(drawable);
    }
  }

  public void display(GLAutoDrawable drawable) {
    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
      ((GLEventListener) iter.next()).display(drawable);
    }
  }

  public void reshape(GLAutoDrawable drawable,
                      int x, int y, int width, int height) {
    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
      ((GLEventListener) iter.next()).reshape(drawable, x, y, width, height);
    }
  }

  public void setAutoSwapBufferMode(boolean onOrOff) {
    autoSwapBufferMode = onOrOff;
  }

  public boolean getAutoSwapBufferMode() {
    return autoSwapBufferMode;
  }

  private static final ThreadLocal perThreadInitAction = new ThreadLocal();
  /** Principal helper method which runs a Runnable with the context
      made current. This could have been made part of GLContext, but a
      desired goal is to be able to implement the GLCanvas in terms of
      the GLContext's public APIs, and putting it into a separate
      class helps ensure that we don't inadvertently use private
      methods of the GLContext or its implementing classes. */
  public void invokeGL(GLDrawable drawable,
                       GLContext context,
                       Runnable  runnable,
                       Runnable  initAction) {
    if(null==context) {
        if (DEBUG) {
            Exception e = new GLException(Thread.currentThread().getName()+" GLDrawableHelper " + this + ".invokeGL(): NULL GLContext");
            e.printStackTrace();
        }
        return;
    }
    // Support for recursive makeCurrent() calls as well as calling
    // other drawables' display() methods from within another one's
    GLContext lastContext    = GLContext.getCurrent();
    Runnable  lastInitAction = (Runnable) perThreadInitAction.get();
    if (lastContext != null) {
      lastContext.release();
    }
  
    if(!context.isCreated() && null == initAction) {
        throw new GLException("Context has to be created, but no initAction is given: "+context);
    }
    int res = 0;
    try {
      res = context.makeCurrent();
      if (res != GLContext.CONTEXT_NOT_CURRENT) {
        if(null!=initAction) {
            perThreadInitAction.set(initAction);
            if (res == GLContext.CONTEXT_CURRENT_NEW) {
              if (DEBUG) {
                System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running initAction");
              }
              initAction.run();
            }
        }
        if(null!=runnable) {
            if (DEBUG && VERBOSE) {
              System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running runnable");
            }
            runnable.run();
            if (autoSwapBufferMode && null != initAction) {
              if (drawable != null) {
                drawable.swapBuffers();
              }
            }
        }
      }
    } finally {
      try {
        if (res != GLContext.CONTEXT_NOT_CURRENT) {
          context.release();
        }
      } catch (Exception e) {
      }
      if (lastContext != null) {
        int res2 = lastContext.makeCurrent();
        if (res2 == GLContext.CONTEXT_CURRENT_NEW) {
          lastInitAction.run();
        }
      }
    }
  }

}