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diff --git a/src/classes/com/sun/opengl/impl/GLContextShareSet.java b/src/classes/com/sun/opengl/impl/GLContextShareSet.java
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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;
-
-import java.awt.GraphicsConfiguration;
-import java.awt.GraphicsDevice;
-import java.awt.GraphicsEnvironment;
-import java.lang.ref.*;
-import java.util.*;
-import javax.media.opengl.*;
-
-/** Provides a mechanism by which OpenGL contexts can share textures
- and display lists in the face of multithreading and asynchronous
- context creation as is inherent in the AWT and Swing. */
-
-public class GLContextShareSet {
- private static boolean forceTracking = Debug.isPropertyDefined("jogl.glcontext.forcetracking");
- private static final boolean DEBUG = Debug.debug("GLContextShareSet");
-
- // This class is implemented with a WeakHashMap that goes from the
- // contexts as keys to a complex data structure as value that tracks
- // context creation and deletion.
-
- private static Map/*<GLContext, ShareSet>*/ shareMap = new WeakHashMap();
- private static Object dummyValue = new Object();
-
- private static class ShareSet {
- private Map allShares = new WeakHashMap();
- private Map createdShares = new WeakHashMap();
- private Map destroyedShares = new WeakHashMap();
-
- public void add(GLContext ctx) {
- if (allShares.put(ctx, dummyValue) == null) {
- // FIXME: downcast to GLContextImpl undesirable
- if (((GLContextImpl) ctx).isCreated()) {
- createdShares.put(ctx, dummyValue);
- } else {
- destroyedShares.put(ctx, dummyValue);
- }
- }
- }
-
- public GLContext getCreatedShare(GLContext ignore) {
- for (Iterator iter = createdShares.keySet().iterator(); iter.hasNext(); ) {
- GLContext ctx = (GLContext) iter.next();
- if (ctx != ignore) {
- return ctx;
- }
- }
- return null;
- }
-
- public void contextCreated(GLContext ctx) {
- Object res = destroyedShares.remove(ctx);
- assert res != null : "State of ShareSet corrupted; thought context " +
- ctx + " should have been in destroyed set but wasn't";
- res = createdShares.put(ctx, dummyValue);
- assert res == null : "State of ShareSet corrupted; thought context " +
- ctx + " shouldn't have been in created set but was";
- }
-
- public void contextDestroyed(GLContext ctx) {
- Object res = createdShares.remove(ctx);
- assert res != null : "State of ShareSet corrupted; thought context " +
- ctx + " should have been in created set but wasn't";
- res = destroyedShares.put(ctx, dummyValue);
- assert res == null : "State of ShareSet corrupted; thought context " +
- ctx + " shouldn't have been in destroyed set but was";
- }
- }
-
- /** Indicate that contexts <code>share1</code> and
- <code>share2</code> will share textures and display lists. Both
- must be non-null. */
- public static synchronized void registerSharing(GLContext share1, GLContext share2) {
- if (share1 == null || share2 == null) {
- throw new IllegalArgumentException("Both share1 and share2 must be non-null");
- }
- ShareSet share = entryFor(share1);
- if (share == null) {
- share = entryFor(share2);
- }
- if (share == null) {
- share = new ShareSet();
- }
- share.add(share1);
- share.add(share2);
- addEntry(share1, share);
- addEntry(share2, share);
- }
-
- public static synchronized GLContext getShareContext(GLContext contextToCreate) {
- ShareSet share = entryFor(contextToCreate);
- if (share == null) {
- return null;
- }
- return share.getCreatedShare(contextToCreate);
- }
-
- public static synchronized void contextCreated(GLContext context) {
- ShareSet share = entryFor(context);
- if (share != null) {
- share.contextCreated(context);
- }
- }
-
- public static synchronized void contextDestroyed(GLContext context) {
- ShareSet share = entryFor(context);
- if (share != null) {
- share.contextDestroyed(context);
- }
- }
-
- /** Indicates that the two supplied contexts (which must be able to
- share textures and display lists) should be in the same
- namespace for tracking of server-side object creation and
- deletion. Because the sharing necessary behind the scenes is
- different than that requested at the user level, the two notions
- are different. This must be called immediately after the
- creation of the new context (which is the second argument)
- before any server-side OpenGL objects have been created in that
- context. */
- public static void registerForObjectTracking(GLContext olderContextOrNull,
- GLContext newContext,
- GLContext realShareContext) {
- if (isObjectTrackingEnabled() || isObjectTrackingDebuggingEnabled()) {
- GLContextImpl impl1 = null;
- GLContextImpl impl2 = null;
- GLObjectTracker tracker = null;
-
- synchronized (GLContextShareSet.class) {
- if (olderContextOrNull != null &&
- newContext != null) {
- if (entryFor(olderContextOrNull) != entryFor(newContext)) {
- throw new IllegalArgumentException("old and new contexts must be able to share textures and display lists");
- }
- }
-
- // FIXME: downcast to GLContextImpl undesirable
- impl1 = (GLContextImpl) olderContextOrNull;
- impl2 = (GLContextImpl) newContext;
-
- GLObjectTracker deletedObjectTracker = null;
- GLContextImpl shareImpl = (GLContextImpl) realShareContext;
- // Before we zap the "user-level" object trackers, make sure
- // that all contexts in the share set share the destroyed object
- // tracker
- if (shareImpl != null) {
- deletedObjectTracker = shareImpl.getDeletedObjectTracker();
- }
- if (deletedObjectTracker == null) {
- // Must create one and possibly set it up in the older context
- deletedObjectTracker = new GLObjectTracker();
- if (DEBUG) {
- System.err.println("Created deletedObjectTracker " + deletedObjectTracker + " because " +
- ((shareImpl == null) ? "shareImpl was null" : "shareImpl's (" + shareImpl + ") deletedObjectTracker was null"));
- }
-
- if (shareImpl != null) {
- // FIXME: think should really assert in this case
- shareImpl.setDeletedObjectTracker(deletedObjectTracker);
- if (DEBUG) {
- System.err.println("Set deletedObjectTracker " + deletedObjectTracker + " in shareImpl context " + shareImpl);
- }
- }
- }
- impl2.setDeletedObjectTracker(deletedObjectTracker);
- if (DEBUG) {
- System.err.println("Set deletedObjectTracker " + deletedObjectTracker + " in impl2 context " + impl2);
- }
- }
-
- // Must not hold lock around this operation
- // Don't share object trackers with the primordial share context from Java2D
- if (Java2D.isOGLPipelineActive()) {
- // FIXME: probably need to do something different here
- // Need to be able to figure out the GraphicsDevice for the
- // older context if it's on-screen
- GraphicsConfiguration gc = GraphicsEnvironment.
- getLocalGraphicsEnvironment().
- getDefaultScreenDevice().
- getDefaultConfiguration();
- GLContext j2dShareContext = Java2D.getShareContext(gc);
- if (impl1 != null && impl1 == j2dShareContext) {
- impl1 = null;
- }
- }
-
- synchronized (GLContextShareSet.class) {
- if (impl1 != null) {
- tracker = impl1.getObjectTracker();
- assert (tracker != null)
- : "registerForObjectTracking was not called properly for the older context";
- }
- if (tracker == null) {
- tracker = new GLObjectTracker();
- }
- // Note that we don't assert that the tracker is non-null for
- // impl2 because the way we use this functionality we actually
- // overwrite the initially-set object tracker in the new context
- impl2.setObjectTracker(tracker);
- }
- }
- }
-
- /** In order to avoid glGet calls for buffer object checks related
- to glVertexPointer, etc. calls as well as glMapBuffer calls, we
- need to share the same GLBufferSizeTracker object between
- contexts sharing textures and display lists. For now we keep
- this mechanism orthogonal to the GLObjectTracker to hopefully
- keep things easier to understand. (The GLObjectTracker is
- currently only needed in a fairly esoteric case, when the
- Java2D/JOGL bridge is active, but the GLBufferSizeTracker
- mechanism is now always required.) */
- public static void registerForBufferObjectSharing(GLContext olderContextOrNull, GLContext newContext) {
- // FIXME: downcasts to GLContextImpl undesirable
- GLContextImpl older = (GLContextImpl) olderContextOrNull;
- GLContextImpl newer = (GLContextImpl) newContext;
- GLBufferSizeTracker tracker = null;
- if (older != null) {
- tracker = older.getBufferSizeTracker();
- assert (tracker != null)
- : "registerForBufferObjectSharing was not called properly for the older context, or has a bug in it";
- }
- if (tracker == null) {
- tracker = new GLBufferSizeTracker();
- }
- newer.setBufferSizeTracker(tracker);
- }
-
- //----------------------------------------------------------------------
- // Internals only below this point
- //
-
- private static ShareSet entryFor(GLContext context) {
- return (ShareSet) shareMap.get(context);
- }
-
- private static void addEntry(GLContext context, ShareSet share) {
- if (shareMap.get(context) == null) {
- shareMap.put(context, share);
- }
- }
-
- private static boolean isObjectTrackingEnabled() {
- return ((Java2D.isOGLPipelineActive() && Java2D.isFBOEnabled()) ||
- isObjectTrackingDebuggingEnabled());
- }
-
- private static boolean isObjectTrackingDebuggingEnabled() {
- return forceTracking;
- }
-}