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-rw-r--r--src/jogl/classes/jogamp/opengl/GLContextShareSet.java252
1 files changed, 121 insertions, 131 deletions
diff --git a/src/jogl/classes/jogamp/opengl/GLContextShareSet.java b/src/jogl/classes/jogamp/opengl/GLContextShareSet.java
index bbb46148c..b7acc0dff 100644
--- a/src/jogl/classes/jogamp/opengl/GLContextShareSet.java
+++ b/src/jogl/classes/jogamp/opengl/GLContextShareSet.java
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright (c) 2011 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
@@ -39,39 +40,36 @@
package jogamp.opengl;
-// FIXME: refactor Java SE dependencies
-// import java.awt.GraphicsConfiguration;
-// import java.awt.GraphicsDevice;
-// import java.awt.GraphicsEnvironment;
-import java.lang.ref.*;
-import java.util.*;
-import javax.media.opengl.*;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
-/** Provides a mechanism by which OpenGL contexts can share textures
+import javax.media.opengl.GLContext;
+import javax.media.opengl.GLException;
+
+
+/** Provides a deterministic 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. */
+ context creation. */
public class GLContextShareSet {
- // FIXME: refactor Java SE dependencies
- // private static boolean forceTracking = Debug.isPropertyDefined("jogl.glcontext.forcetracking");
- private static final boolean DEBUG = Debug.debug("GLContext");
-
- // 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 final boolean DEBUG = GLContextImpl.DEBUG;
+
+ // This class is implemented using a HashMap which maps from all shared contexts
+ // to a share set, containing all shared contexts itself.
- private static Map/*<GLContext, ShareSet>*/ shareMap = new WeakHashMap();
- private static Object dummyValue = new Object();
+ private static final Map<GLContext, ShareSet> shareMap = new HashMap<GLContext, ShareSet>();
+ private static final Object dummyValue = new Object();
private static class ShareSet {
- private Map allShares = new WeakHashMap();
- private Map createdShares = new WeakHashMap();
- private Map destroyedShares = new WeakHashMap();
+ private Map<GLContext, Object> allShares = new HashMap<GLContext, Object>();
+ private Map<GLContext, Object> createdShares = new HashMap<GLContext, Object>();
+ private Map<GLContext, Object> destroyedShares = new HashMap<GLContext, Object>();
public void add(GLContext ctx) {
if (allShares.put(ctx, dummyValue) == null) {
- // FIXME: downcast to GLContextImpl undesirable
- if (((GLContextImpl) ctx).isCreated()) {
+ if (ctx.isCreated()) {
createdShares.put(ctx, dummyValue);
} else {
destroyedShares.put(ctx, dummyValue);
@@ -79,9 +77,17 @@ public class GLContextShareSet {
}
}
+ public Set<GLContext> getCreatedShares() {
+ return createdShares.keySet();
+ }
+
+ public Set<GLContext> getDestroyedShares() {
+ return destroyedShares.keySet();
+ }
+
public GLContext getCreatedShare(GLContext ignore) {
- for (Iterator iter = createdShares.keySet().iterator(); iter.hasNext(); ) {
- GLContext ctx = (GLContext) iter.next();
+ for (Iterator<GLContext> iter = createdShares.keySet().iterator(); iter.hasNext(); ) {
+ GLContext ctx = iter.next();
if (ctx != ignore) {
return ctx;
}
@@ -126,8 +132,84 @@ public class GLContextShareSet {
share.add(share2);
addEntry(share1, share);
addEntry(share2, share);
+ if (DEBUG) {
+ System.err.println("GLContextShareSet: registereSharing: 1: " +
+ toHexString(share1.getHandle()) + ", 2: " + toHexString(share2.getHandle()));
+ }
}
+ public static synchronized void unregisterSharing(GLContext lastContext) {
+ if (lastContext == null) {
+ throw new IllegalArgumentException("Last context is null");
+ }
+ ShareSet share = entryFor(lastContext);
+ if (share == null) {
+ throw new GLException("Last context is unknown: "+lastContext);
+ }
+ Set<GLContext> s = share.getCreatedShares();
+ if(s.size()>0) {
+ throw new GLException("Last context's share set contains "+s.size()+" non destroyed context");
+ }
+ s = share.getDestroyedShares();
+ if(s.size()==0) {
+ throw new GLException("Last context's share set contains no destroyed context");
+ }
+ if (DEBUG) {
+ System.err.println("GLContextShareSet: unregisterSharing: " +
+ toHexString(lastContext.getHandle())+", entries: "+s.size());
+ }
+ for(Iterator<GLContext> iter = s.iterator() ; iter.hasNext() ; ) {
+ GLContext ctx = iter.next();
+ if(null == removeEntry(ctx)) {
+ throw new GLException("Removal of shareSet for context failed");
+ }
+ }
+ }
+
+ private static synchronized Set<GLContext> getCreatedSharedImpl(GLContext context) {
+ if (context == null) {
+ throw new IllegalArgumentException("context is null");
+ }
+ final ShareSet share = entryFor(context);
+ if (share != null) {
+ return share.getCreatedShares();
+ }
+ return null;
+ }
+
+ public static synchronized boolean isShared(GLContext context) {
+ if (context == null) {
+ throw new IllegalArgumentException("context is null");
+ }
+ final ShareSet share = entryFor(context);
+ return share != null;
+ }
+
+ public static synchronized boolean hasCreatedSharedLeft(GLContext context) {
+ final Set<GLContext> s = getCreatedSharedImpl(context);
+ return null != s && s.size()>0 ;
+ }
+
+ /** currently not used ..
+ public static synchronized Set<GLContext> getCreatedShared(GLContext context) {
+ final Set<GLContext> s = getCreatedSharedImpl(context);
+ if (s == null) {
+ throw new GLException("context is unknown: "+context);
+ }
+ return s;
+ }
+
+ public static synchronized Set<GLContext> getDestroyedShared(GLContext context) {
+ if (context == null) {
+ throw new IllegalArgumentException("context is null");
+ }
+ ShareSet share = entryFor(context);
+ if (share == null) {
+ throw new GLException("context is unknown: "+context);
+ }
+ return share.getDestroyedShares();
+ } */
+
public static synchronized GLContext getShareContext(GLContext contextToCreate) {
ShareSet share = entryFor(contextToCreate);
if (share == null) {
@@ -136,18 +218,22 @@ public class GLContextShareSet {
return share.getCreatedShare(contextToCreate);
}
- public static synchronized void contextCreated(GLContext context) {
+ public static synchronized boolean contextCreated(GLContext context) {
ShareSet share = entryFor(context);
if (share != null) {
share.contextCreated(context);
+ return true;
}
+ return false;
}
- public static synchronized void contextDestroyed(GLContext context) {
+ public static synchronized boolean contextDestroyed(GLContext context) {
ShareSet share = entryFor(context);
if (share != null) {
share.contextDestroyed(context);
+ return true;
}
+ return false;
}
/** In order to avoid glGet calls for buffer object checks related
@@ -159,8 +245,7 @@ public class GLContextShareSet {
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
+ public static void synchronizeBufferObjectSharing(GLContext olderContextOrNull, GLContext newContext) {
GLContextImpl older = (GLContextImpl) olderContextOrNull;
GLContextImpl newer = (GLContextImpl) newContext;
GLBufferSizeTracker tracker = null;
@@ -175,98 +260,6 @@ public class GLContextShareSet {
newer.setBufferSizeTracker(tracker);
}
- // FIXME: refactor Java SE dependencies
- // /** 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
- // GraphicsDevice device = GraphicsEnvironment.
- // getLocalGraphicsEnvironment().
- // getDefaultScreenDevice();
- // GLContext j2dShareContext = Java2D.getShareContext(device);
- // 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);
- // }
- // }
- // }
-
//----------------------------------------------------------------------
// Internals only below this point
@@ -280,14 +273,11 @@ public class GLContextShareSet {
shareMap.put(context, share);
}
}
-
- // FIXME: refactor Java SE dependencies
- // private static boolean isObjectTrackingEnabled() {
- // return ((Java2D.isOGLPipelineActive() && Java2D.isFBOEnabled()) ||
- // isObjectTrackingDebuggingEnabled());
- // }
- //
- // private static boolean isObjectTrackingDebuggingEnabled() {
- // return forceTracking;
- // }
+ private static ShareSet removeEntry(GLContext context) {
+ return (ShareSet) shareMap.remove(context);
+ }
+
+ protected static String toHexString(long hex) {
+ return "0x" + Long.toHexString(hex);
+ }
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 01:32:01 +0000