Fix: Memory consumption

Observing memory consumption showed:
    1 - 'traceLock' debug stack traces (GLContextLock)
    2 - massive Iterator usage

(1) is fixed, ie only enabled in DEBUG mode, like we have done in RecursiveLock before

(2) Using an Iterator on ArrayLists with a low element count < 100,
    as it is usual in our use cases, is observed not to be faster
    than accessing the elements via an index (-> TestIteratorIndexCORE.java ).
    On the contrary, the index implementation was a bit faster.
    Further more, these Iterators were massively used on the fly during animation,
    hence their memory managment even impacts fluent processing/animation.
    Recoded all animation related (display, surfaceUpdated, ..) loops using an index.

1 files changed, 128 insertions, 0 deletions

diff --git a/src/junit/com/jogamp/test/junit/core/TestIteratorIndexCORE.java b/src/junit/com/jogamp/test/junit/core/TestIteratorIndexCORE.java
new file mode 100644
index 000000000..0ed102e40
--- /dev/null
+++ b/src/junit/com/jogamp/test/junit/core/TestIteratorIndexCORE.java
@@ -0,0 +1,128 @@
+/**
+ * Copyright 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:
+ * 
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ * 
+ *    2. Redistributions 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.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+ 
+package com.jogamp.test.junit.core;
+
+import com.jogamp.test.junit.util.UITestCase;
+
+import java.util.*;
+import java.io.IOException;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.AfterClass;
+import org.junit.Test;
+
+public class TestIteratorIndexCORE extends UITestCase {
+
+    static int elems = 10;
+    static int loop = 9999999;
+
+    public void populate(List l, int len) {
+        while(len>0) {
+            l.add(new Integer(len--));
+        }
+    }
+
+    @Test
+    public void test01ArrayListIterator() {
+        int sum=0;
+        ArrayList l = new ArrayList();
+        populate(l, elems);
+
+        for(int j=loop; j>0; j--) {
+            for(Iterator iter = l.iterator(); iter.hasNext(); ) {
+                Integer i = (Integer)iter.next();
+                sum+=i.intValue();
+            }
+        }
+        System.err.println("test01-arraylist-iterator sum: "+sum);
+    }
+
+    @Test
+    public void test0ArrayListIndex() {
+        int sum=0;
+        ArrayList l = new ArrayList();
+        populate(l, elems);
+
+        for(int j=loop; j>0; j--) {
+            for(int k = 0; k < l.size(); k++) {
+                Integer i = (Integer)l.get(k);
+                sum+=i.intValue();
+            }
+        }
+        System.err.println("test01-arraylist-index sum: "+sum);
+    }
+
+    @Test
+    public void test01LinkedListListIterator() {
+        int sum=0;
+        LinkedList l = new LinkedList();
+        populate(l, elems);
+
+        for(int j=loop; j>0; j--) {
+            for(Iterator iter = l.iterator(); iter.hasNext(); ) {
+                Integer i = (Integer)iter.next();
+                sum+=i.intValue();
+            }
+        }
+        System.err.println("test01-linkedlist-iterator sum: "+sum);
+    }
+
+    @Test
+    public void test01LinkedListListIndex() {
+        int sum=0;
+        LinkedList l = new LinkedList();
+        populate(l, elems);
+
+        for(int j=loop; j>0; j--) {
+            for(int k = 0; k < l.size(); k++) {
+                Integer i = (Integer)l.get(k);
+                sum+=i.intValue();
+            }
+        }
+        System.err.println("test01-linkedlist-index sum: "+sum);
+    }
+
+    public static void main(String args[]) throws IOException {
+        String tstname = TestIteratorIndexCORE.class.getName();
+        org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(new String[] {
+            tstname,
+            "filtertrace=true",
+            "haltOnError=false",
+            "haltOnFailure=false",
+            "showoutput=true",
+            "outputtoformatters=true",
+            "logfailedtests=true",
+            "logtestlistenerevents=true",
+            "formatter=org.apache.tools.ant.taskdefs.optional.junit.PlainJUnitResultFormatter",
+            "formatter=org.apache.tools.ant.taskdefs.optional.junit.XMLJUnitResultFormatter,TEST-"+tstname+".xml" } );
+    }
+
+}