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Java™ Binding for the OpenGL® API
/*
* Copyright (c) 2008 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.
*/
package com.jogamp.nativewindow.x11;
import jogamp.nativewindow.x11.X11Lib;
import jogamp.nativewindow.x11.X11Util;
import javax.media.nativewindow.DefaultGraphicsDevice;
import javax.media.nativewindow.NativeWindowException;
import javax.media.nativewindow.NativeWindowFactory;
import javax.media.nativewindow.ToolkitLock;
/** Encapsulates a graphics device on X11 platforms.
*/
public class X11GraphicsDevice extends DefaultGraphicsDevice implements Cloneable {
/* final */ boolean handleOwner;
final boolean isXineramaEnabled;
/** Constructs a new X11GraphicsDevice corresponding to the given connection and default
* {@link javax.media.nativewindow.ToolkitLock} via {@link NativeWindowFactory#getDefaultToolkitLock(String)}.
* Note that this is not an open connection, ie no native display handle exist.
* This constructor exist to setup a default device connection.
* @see DefaultGraphicsDevice#DefaultGraphicsDevice(String, String, int)
*/
public X11GraphicsDevice(String connection, int unitID) {
super(NativeWindowFactory.TYPE_X11, connection, unitID);
handleOwner = false;
isXineramaEnabled = false;
}
/** Constructs a new X11GraphicsDevice corresponding to the given native display handle and default
* {@link javax.media.nativewindow.ToolkitLock} via {@link NativeWindowFactory#getDefaultToolkitLock(String, long)}.
* @see DefaultGraphicsDevice#DefaultGraphicsDevice(String, String, int, long)
*/
public X11GraphicsDevice(long display, int unitID, boolean owner) {
// FIXME: derive unitID from connection could be buggy, one DISPLAY for all screens for example..
super(NativeWindowFactory.TYPE_X11, X11Lib.XDisplayString(display), unitID, display);
if(0==display) {
throw new NativeWindowException("null display");
}
handleOwner = owner;
isXineramaEnabled = X11Util.XineramaIsEnabled(this);
}
/**
* @param display the Display connection
* @param locker custom {@link javax.media.nativewindow.ToolkitLock}, eg to force null locking w/ private connection
* @see DefaultGraphicsDevice#DefaultGraphicsDevice(String, String, int, long, ToolkitLock)
*/
public X11GraphicsDevice(long display, int unitID, ToolkitLock locker, boolean owner) {
super(NativeWindowFactory.TYPE_X11, X11Lib.XDisplayString(display), unitID, display, locker);
if(0==display) {
throw new NativeWindowException("null display");
}
handleOwner = owner;
isXineramaEnabled = X11Util.XineramaIsEnabled(this);
}
private static int getDefaultScreenImpl(long dpy) {
return X11Lib.DefaultScreen(dpy);
}
/**
* Returns the default screen number as referenced by the display connection, i.e. 'somewhere:0.1' -> 1
*
* Implementation uses the XLib macro DefaultScreen(display).
*
*/
public int getDefaultScreen() {
final long display = getHandle();
if(0==display) {
throw new NativeWindowException("null display");
}
final int ds = getDefaultScreenImpl(display);
if(DEBUG) {
System.err.println(Thread.currentThread().getName() + " - X11GraphicsDevice.getDefaultDisplay() of "+this+": "+ds+", count "+X11Lib.ScreenCount(display));
}
return ds;
}
public int getDefaultVisualID() {
final long display = getHandle();
if(0==display) {
throw new NativeWindowException("null display");
}
return X11Lib.DefaultVisualID(display, getDefaultScreenImpl(display));
}
public final boolean isXineramaEnabled() {
return isXineramaEnabled;
}
@Override
public Object clone() {
return super.clone();
}
@Override
public boolean open() {
if(handleOwner && 0 == handle) {
if(DEBUG) {
System.err.println(Thread.currentThread().getName() + " - X11GraphicsDevice.open(): "+this);
}
handle = X11Util.openDisplay(connection);
if(0 == handle) {
throw new NativeWindowException("X11GraphicsDevice.open() failed: "+this);
}
return true;
}
return false;
}
@Override
public boolean close() {
if(handleOwner && 0 != handle) {
if(DEBUG) {
System.err.println(Thread.currentThread().getName() + " - X11GraphicsDevice.close(): "+this);
}
X11Util.closeDisplay(handle);
}
return super.close();
}
@Override
public boolean isHandleOwner() {
return handleOwner;
}
@Override
public void clearHandleOwner() {
handleOwner = false;
}
@Override
protected Object getHandleOwnership() {
return Boolean.valueOf(handleOwner);
}
@Override
protected Object setHandleOwnership(Object newOwnership) {
final Boolean oldOwnership = Boolean.valueOf(handleOwner);
handleOwner = ((Boolean) newOwnership).booleanValue();
return oldOwnership;
}
}