1 files changed, 67 insertions, 0 deletions
diff --git a/java/Fountain/src/com/android/fountain/ScriptField_Point.java b/java/Fountain/src/com/android/fountain/ScriptField_Point.java
new file mode 100644
index 00000000..edd18d58
--- /dev/null
+++ b/java/Fountain/src/com/android/fountain/ScriptField_Point.java
@@ -0,0 +1,67 @@
+
+package com.android.fountain;
+
+import android.content.res.Resources;
+import android.renderscript.*;
+import android.util.Log;
+
+public class ScriptField_Point
+    extends android.renderscript.Script.FieldBase
+{
+
+    static public class Item {
+        Item() {
+            delta = new Float2();
+            pos = new Float2();
+            color = new Short4();
+        }
+
+        public static final int sizeof = (5*4);
+        Float2 delta;
+        Float2 pos;
+        Short4 color;
+    }
+    private Item mItemArray[];
+
+
+    public ScriptField_Point(RenderScript rs, int count) {
+        // Allocate a pack/unpack buffer
+        mIOBuffer = new FieldPacker(Item.sizeof * count);
+        mItemArray = new Item[count];
+
+        Element.Builder eb = new Element.Builder(rs);
+        eb.add(Element.createVector(rs, Element.DataType.FLOAT_32, 2), "delta");
+        eb.add(Element.createAttrib(rs, Element.DataType.FLOAT_32, Element.DataKind.POSITION, 2), "pos");
+        eb.add(Element.createAttrib(rs, Element.DataType.UNSIGNED_8, Element.DataKind.COLOR, 4), "color");
+        mElement = eb.create();
+
+        init(rs, count);
+    }
+
+    private void copyToArray(Item i, int index) {
+        mIOBuffer.reset(index * Item.sizeof);
+        mIOBuffer.addF32(i.delta);
+        mIOBuffer.addF32(i.pos);
+        mIOBuffer.addU8(i.color);
+    }
+
+    public void set(Item i, int index, boolean copyNow) {
+        mItemArray[index] = i;
+        if (copyNow) {
+            copyToArray(i, index);
+            mAllocation.subData1D(index * Item.sizeof, Item.sizeof, mIOBuffer.getData());
+        }
+    }
+
+    public void copyAll() {
+        for (int ct=0; ct < mItemArray.length; ct++) {
+            copyToArray(mItemArray[ct], ct);
+        }
+        mAllocation.data(mIOBuffer.getData());
+    }
+
+
+    private FieldPacker mIOBuffer;
+
+
+}