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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.sun.opengl.impl.x11;
import javax.media.opengl.*;
import com.sun.opengl.impl.*;
public class X11OnscreenGLDrawable extends X11GLDrawable {
protected NativeWindow component;
// Indicates whether the component (if an onscreen context) has been
// realized. Plausibly, before the component 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 component.
protected boolean realized;
public X11OnscreenGLDrawable(NativeWindow component) {
super(null, null);
this.component = component;
}
public GLContext createContext(GLContext shareWith) {
return new X11OnscreenGLContext(this, shareWith);
}
public void setRealized(boolean realized) {
this.realized = realized;
}
public void setSize(int width, int height) {
component.setSize(width, height);
}
public int getWidth() {
return component.getWidth();
}
public int getHeight() {
return component.getHeight();
}
public void swapBuffers() throws GLException {
lockToolkit();
try {
boolean didLock = false;
if (component.getWindowHandle() == 0) {
if (lockSurface() == LOCK_SURFACE_NOT_READY) {
return;
}
didLock = true;
}
GLX.glXSwapBuffers(component.getDisplayHandle(), component.getWindowHandle());
if (didLock) {
unlockSurface();
}
} finally {
unlockToolkit();
}
}
public int lockSurface() throws GLException {
if (!realized) {
return LOCK_SURFACE_NOT_READY;
}
return component.lockSurface();
}
public void unlockSurface() {
return component.lockSurface();
}
}
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