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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.nativewindow.AbstractGraphicsDevice;
import javax.media.nativewindow.NativeSurface;
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.GLProfile;
public abstract class GLDrawableImpl implements GLDrawable {
protected static final boolean DEBUG = Debug.debug("GLDrawable");
protected GLDrawableImpl(GLDrawableFactory factory,
NativeSurface comp,
boolean realized) {
this.factory = factory;
this.surface = comp;
this.realized = realized;
this.requestedCapabilities = (GLCapabilitiesImmutable) surface.getGraphicsConfiguration().getRequestedCapabilities();
}
/**
* Returns the DynamicLookupHelper
*/
public abstract GLDynamicLookupHelper getGLDynamicLookupHelper();
public GLDrawableFactoryImpl getFactoryImpl() {
return (GLDrawableFactoryImpl) getFactory();
}
/** For offscreen GLDrawables (pbuffers and "pixmap" drawables),
indicates that native resources should be reclaimed. */
public void destroy() {
surface.getGraphicsConfiguration().getScreen().getDevice().lock();
try {
destroyImpl();
} finally {
surface.getGraphicsConfiguration().getScreen().getDevice().unlock();
}
}
protected void destroyImpl() {
throw new GLException("Should not call this (should only be called for offscreen GLDrawables)");
}
public final void swapBuffers() throws GLException {
GLCapabilitiesImmutable caps = (GLCapabilitiesImmutable)surface.getGraphicsConfiguration().getChosenCapabilities();
if ( caps.getDoubleBuffered() ) {
if(!surface.surfaceSwap()) {
int lockRes = lockSurface(); // it's recursive, so it's ok within [makeCurrent .. release]
if (NativeSurface.LOCK_SURFACE_NOT_READY == lockRes) {
return;
}
try {
if (NativeSurface.LOCK_SURFACE_CHANGED == lockRes) {
updateHandle();
}
swapBuffersImpl();
} finally {
unlockSurface();
}
}
} else {
GLContext ctx = GLContext.getCurrent();
if(null!=ctx && ctx.getGLDrawable()==this) {
ctx.getGL().glFinish();
}
}
surface.surfaceUpdated(this, surface, System.currentTimeMillis());
}
protected abstract void swapBuffersImpl();
public static String toHexString(long hex) {
return "0x" + Long.toHexString(hex);
}
public GLProfile getGLProfile() {
return requestedCapabilities.getGLProfile();
}
public GLCapabilitiesImmutable getChosenGLCapabilities() {
return (GLCapabilitiesImmutable) surface.getGraphicsConfiguration().getChosenCapabilities();
}
public GLCapabilitiesImmutable getRequestedGLCapabilities() {
return requestedCapabilities;
}
public NativeSurface getNativeSurface() {
return surface;
}
/** called with locked surface @ setRealized(false) */
protected void destroyHandle() {}
/** called with locked surface @ setRealized(true) or @ lockSurface(..) when surface changed */
protected void updateHandle() {}
public long getHandle() {
return surface.getSurfaceHandle();
}
public GLDrawableFactory getFactory() {
return factory;
}
public final synchronized void setRealized(boolean realizedArg) {
if ( realized != realizedArg ) {
if(DEBUG) {
System.err.println(getThreadName() + ": setRealized: "+getClass().getName()+" "+realized+" -> "+realizedArg);
}
realized = realizedArg;
AbstractGraphicsDevice aDevice = surface.getGraphicsConfiguration().getScreen().getDevice();
if(realizedArg) {
if(NativeSurface.LOCK_SURFACE_NOT_READY >= lockSurface()) {
throw new GLException("GLDrawableImpl.setRealized(true): already realized, but surface not ready (lockSurface)");
}
} else {
aDevice.lock();
}
try {
setRealizedImpl();
if(realizedArg) {
updateHandle();
} else {
destroyHandle();
}
} finally {
if(realizedArg) {
unlockSurface();
} else {
aDevice.unlock();
}
}
} else if(DEBUG) {
System.err.println(getThreadName() + ": setRealized: "+getClass().getName()+" "+this.realized+" == "+realizedArg);
}
}
protected abstract void setRealizedImpl();
public synchronized boolean isRealized() {
return realized;
}
public int getWidth() {
return surface.getWidth();
}
public int getHeight() {
return surface.getHeight();
}
public int lockSurface() throws GLException {
return surface.lockSurface();
}
public void unlockSurface() {
surface.unlockSurface();
}
public boolean isSurfaceLocked() {
return surface.isSurfaceLocked();
}
public String toString() {
return getClass().getSimpleName()+"[Realized "+isRealized()+
",\n\tFactory "+getFactory()+
",\n\thandle "+toHexString(getHandle())+
",\n\tWindow "+getNativeSurface()+"]";
}
protected static String getThreadName() {
return Thread.currentThread().getName();
}
protected GLDrawableFactory factory;
protected NativeSurface surface;
protected GLCapabilitiesImmutable requestedCapabilities;
// Indicates whether the surface (if an onscreen context) has been
// realized. Plausibly, before the surface is realized the JAWT
// should return an error or NULL object from some of its
// operations; this appears to be the case on Win32 but is not true
// at least with Sun's current X11 implementation (1.4.x), which
// crashes with no other error reported if the DrawingSurfaceInfo is
// fetched from a locked DrawingSurface during the validation as a
// result of calling show() on the main thread. To work around this
// we prevent any JAWT or OpenGL operations from being done until
// addNotify() is called on the surface.
protected boolean realized;
}
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