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/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2010 JogAmp Community. 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 jogamp.opengl;
import javax.media.opengl.GLCapabilitiesImmutable;
import javax.media.opengl.GLContext;
import javax.media.opengl.GLDrawable;
import javax.media.opengl.GLDrawableFactory;
import javax.media.opengl.GLException;
import javax.media.opengl.GLPbuffer;
import com.jogamp.common.util.locks.LockFactory;
import com.jogamp.common.util.locks.RecursiveLock;
/** Platform-independent class exposing pbuffer functionality to
applications. This class is not exposed in the public API as it
would probably add no value; however it implements the GLDrawable
interface so can be interacted with via its display() method. */
public class GLPbufferImpl extends GLAutoDrawableBase implements GLPbuffer {
private int floatMode;
public GLPbufferImpl(GLDrawableImpl pbufferDrawable, GLContext sharedContext, boolean ownDevice) {
super(pbufferDrawable, null, ownDevice); // drawable := pbufferDrawable
GLCapabilitiesImmutable caps = (GLCapabilitiesImmutable)
drawable.getNativeSurface().getGraphicsConfiguration().getChosenCapabilities();
if(caps.isOnscreen()) {
if(caps.isPBuffer()) {
throw new IllegalArgumentException("Error: Given drawable is Onscreen and Pbuffer: "+pbufferDrawable);
}
throw new IllegalArgumentException("Error: Given drawable is Onscreen: "+pbufferDrawable);
} else {
if(!caps.isPBuffer()) {
throw new IllegalArgumentException("Error: Given drawable is not Pbuffer: "+pbufferDrawable);
}
}
context = (GLContextImpl) drawable.createContext(sharedContext);
}
//
// pbuffer specifics
//
@Override
public void bindTexture() {
// Doesn't make much sense to try to do this on the event dispatch
// thread given that it has to be called while the context is current
context.bindPbufferToTexture();
}
@Override
public void releaseTexture() {
// Doesn't make much sense to try to do this on the event dispatch
// thread given that it has to be called while the context is current
context.releasePbufferFromTexture();
}
@Override
public int getFloatingPointMode() {
if (floatMode == 0) {
throw new GLException("Pbuffer not initialized, or floating-point support not requested");
}
return floatMode;
}
//
// GLDrawable delegation
//
@Override
public final void setRealized(boolean realized) {
}
//
// GLAutoDrawable completion
//
private final RecursiveLock lock = LockFactory.createRecursiveLock(); // instance wide lock
@Override
protected final RecursiveLock getLock() { return lock; }
@Override
public final Object getUpstreamWidget() {
return null;
}
@Override
public void destroy() {
defaultDestroy();
}
@Override
public GLDrawableFactory getFactory() {
return drawable.getFactory();
}
@Override
public final void display() {
final RecursiveLock _lock = lock;
_lock.lock(); // sync: context/drawable could been recreated/destroyed while animating
try {
if( null != context ) {
helper.invokeGL(drawable, context, defaultDisplayAction, initAction);
}
} finally {
_lock.unlock();
}
}
@Override
public final void swapBuffers() throws GLException {
defaultSwapBuffers();
}
//----------------------------------------------------------------------
// Internals only below this point
//
protected final Runnable initAction = new Runnable() {
@Override
public final void run() {
floatMode = context.getFloatingPointMode();
defaultInitAction.run();
} };
}
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