start rewriting rollo so it's a little more parameterized.
diff --git a/src/com/android/launcher2/IntAllocation.java b/src/com/android/launcher2/IntAllocation.java
new file mode 100644
index 0000000..3d96c5e
--- /dev/null
+++ b/src/com/android/launcher2/IntAllocation.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher2;
+
+import android.renderscript.Allocation;
+import android.renderscript.Element;
+import android.renderscript.RenderScript;
+
+import java.lang.reflect.Field;
+
+public class IntAllocation {
+    private RenderScript mRS;
+    private int[] mBuffer;
+    private Allocation mAlloc;
+
+    public IntAllocation(RenderScript rs) {
+        mRS = rs;
+    }
+
+    public void save() {
+        Field[] fields = this.getClass().getFields();
+        if (mBuffer == null) {
+            int maxIndex = 0;
+            for (Field f: fields) {
+                AllocationIndex index = f.getAnnotation(AllocationIndex.class);
+                if (index != null) {
+                    int value = index.value();
+                    if (value > maxIndex) {
+                        maxIndex = value;
+                    }
+                }
+            }
+            mBuffer = new int[maxIndex+1];
+            mAlloc = Allocation.createSized(mRS, Element.USER_I32, mBuffer.length);
+        }
+        int[] buf = mBuffer;
+        for (Field f: fields) {
+            AllocationIndex index = f.getAnnotation(AllocationIndex.class);
+            if (index != null) {
+                try {
+                    buf[index.value()] = f.getInt(this);
+                } catch (IllegalAccessException ex) {
+                    throw new RuntimeException(ex);
+                }
+            }
+        }
+        mAlloc.data(buf);
+    }
+
+    Allocation getAllocation() {
+        return mAlloc;
+    }
+}