diff options
Diffstat (limited to 'src/net/java/games/jogl/impl/SingleThreadedWorkaround.java')
-rwxr-xr-x | src/net/java/games/jogl/impl/SingleThreadedWorkaround.java | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/net/java/games/jogl/impl/SingleThreadedWorkaround.java b/src/net/java/games/jogl/impl/SingleThreadedWorkaround.java new file mode 100755 index 000000000..ca6485ea2 --- /dev/null +++ b/src/net/java/games/jogl/impl/SingleThreadedWorkaround.java @@ -0,0 +1,86 @@ +/* + * 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 + * MIDROSYSTEMS, 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 net.java.games.jogl.impl; + +import java.security.AccessController; +import java.security.PrivilegedAction; + +/** Encapsulates the workaround of running all display operations on + the AWT event queue thread for the purposes of working around + problems seen primarily on ATI cards when rendering into a surface + that is simultaneously being resized by the event queue thread */ + +public class SingleThreadedWorkaround { + private static boolean ATI_WORKAROUND = false; + // If the user specified the workaround's system property (either + // true or false), don't let the automatic detection have any effect + private static boolean systemPropertySpecified = false; + + static { + AccessController.doPrivileged(new PrivilegedAction() { + public Object run() { + String workaround = System.getProperty("ATI_WORKAROUND"); + if (workaround != null) { + systemPropertySpecified = true; + ATI_WORKAROUND = Boolean.valueOf(workaround).booleanValue(); + } + printWorkaroundNotice(); + return null; + } + }); + } + + public static void shouldDoWorkaround() { + if (!systemPropertySpecified) { + ATI_WORKAROUND = true; + printWorkaroundNotice(); + } + } + + public static boolean doWorkaround() { + return ATI_WORKAROUND; + } + + private static void printWorkaroundNotice() { + if (ATI_WORKAROUND) { + System.err.println("Using ATI workaround of dispatching display() on event thread"); + } + } +} |