Move RenderScript from graphics/ to new fw/base subdirectory rs.

Change-Id: I30b6633578f063840e1bdbcc9ba513b727912a6d

1 files changed, 1863 insertions, 0 deletions

diff --git a/rs/java/android/renderscript/Allocation.java b/rs/java/android/renderscript/Allocation.java
new file mode 100644
index 0000000..98fabce
--- /dev/null
+++ b/rs/java/android/renderscript/Allocation.java
@@ -0,0 +1,1863 @@
+/*
+ * Copyright (C) 2008-2012 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 android.renderscript;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import android.content.res.Resources;
+import android.content.res.AssetManager;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.view.Surface;
+import android.util.Log;
+import android.util.TypedValue;
+import android.graphics.Canvas;
+import android.os.Trace;
+
+/**
+ * <p> This class provides the primary method through which data is passed to
+ * and from RenderScript kernels.  An Allocation provides the backing store for
+ * a given {@link android.renderscript.Type}.  </p>
+ *
+ * <p>An Allocation also contains a set of usage flags that denote how the
+ * Allocation could be used. For example, an Allocation may have usage flags
+ * specifying that it can be used from a script as well as input to a {@link
+ * android.renderscript.Sampler}. A developer must synchronize across these
+ * different usages using {@link android.renderscript.Allocation#syncAll} in
+ * order to ensure that different users of the Allocation have a consistent view
+ * of memory. For example, in the case where an Allocation is used as the output
+ * of one kernel and as Sampler input in a later kernel, a developer must call
+ * {@link #syncAll syncAll(Allocation.USAGE_SCRIPT)} prior to launching the
+ * second kernel to ensure correctness.
+ *
+ * <p>An Allocation can be populated with the {@link #copyFrom} routines. For
+ * more complex Element types, the {@link #copyFromUnchecked} methods can be
+ * used to copy from byte arrays or similar constructs.</p>
+ *
+ * <div class="special reference">
+ * <h3>Developer Guides</h3>
+ * <p>For more information about creating an application that uses RenderScript, read the
+ * <a href="{@docRoot}guide/topics/renderscript/index.html">RenderScript</a> developer guide.</p>
+ * </div>
+ **/
+public class Allocation extends BaseObj {
+    Type mType;
+    Bitmap mBitmap;
+    int mUsage;
+    Allocation mAdaptedAllocation;
+    int mSize;
+
+    boolean mConstrainedLOD;
+    boolean mConstrainedFace;
+    boolean mConstrainedY;
+    boolean mConstrainedZ;
+    boolean mReadAllowed = true;
+    boolean mWriteAllowed = true;
+    int mSelectedY;
+    int mSelectedZ;
+    int mSelectedLOD;
+    Type.CubemapFace mSelectedFace = Type.CubemapFace.POSITIVE_X;
+
+    int mCurrentDimX;
+    int mCurrentDimY;
+    int mCurrentDimZ;
+    int mCurrentCount;
+    static HashMap<Long, Allocation> mAllocationMap =
+            new HashMap<Long, Allocation>();
+    OnBufferAvailableListener mBufferNotifier;
+
+    /**
+     * The usage of the Allocation.  These signal to RenderScript where to place
+     * the Allocation in memory.
+     *
+     */
+
+    /**
+     * The Allocation will be bound to and accessed by scripts.
+     */
+    public static final int USAGE_SCRIPT = 0x0001;
+
+    /**
+     * The Allocation will be used as a texture source by one or more graphics
+     * programs.
+     *
+     */
+    public static final int USAGE_GRAPHICS_TEXTURE = 0x0002;
+
+    /**
+     * The Allocation will be used as a graphics mesh.
+     *
+     * This was deprecated in API level 16.
+     *
+     */
+    public static final int USAGE_GRAPHICS_VERTEX = 0x0004;
+
+
+    /**
+     * The Allocation will be used as the source of shader constants by one or
+     * more programs.
+     *
+     * This was deprecated in API level 16.
+     *
+     */
+    public static final int USAGE_GRAPHICS_CONSTANTS = 0x0008;
+
+    /**
+     * The Allocation will be used as a target for offscreen rendering
+     *
+     * This was deprecated in API level 16.
+     *
+     */
+    public static final int USAGE_GRAPHICS_RENDER_TARGET = 0x0010;
+
+    /**
+     * The Allocation will be used as a {@link android.view.Surface}
+     * consumer.  This usage will cause the Allocation to be created
+     * as read-only.
+     *
+     */
+    public static final int USAGE_IO_INPUT = 0x0020;
+
+    /**
+     * The Allocation will be used as a {@link android.view.Surface}
+     * producer.  The dimensions and format of the {@link
+     * android.view.Surface} will be forced to those of the
+     * Allocation.
+     *
+     */
+    public static final int USAGE_IO_OUTPUT = 0x0040;
+
+    /**
+     * The Allocation's backing store will be inherited from another object
+     * (usually a {@link android.graphics.Bitmap}); copying to or from the
+     * original source Bitmap will cause a synchronization rather than a full
+     * copy.  {@link #syncAll} may also be used to synchronize the Allocation
+     * and the source Bitmap.
+     *
+     * <p>This is set by default for allocations created with {@link
+     * #createFromBitmap} in API version 18 and higher.</p>
+     *
+     */
+    public static final int USAGE_SHARED = 0x0080;
+
+    /**
+     * Controls mipmap behavior when using the bitmap creation and update
+     * functions.
+     */
+    public enum MipmapControl {
+        /**
+         * No mipmaps will be generated and the type generated from the incoming
+         * bitmap will not contain additional LODs.
+         */
+        MIPMAP_NONE(0),
+
+        /**
+         * A full mipmap chain will be created in script memory.  The Type of
+         * the Allocation will contain a full mipmap chain.  On upload, the full
+         * chain will be transferred.
+         */
+        MIPMAP_FULL(1),
+
+        /**
+         * The Type of the Allocation will be the same as MIPMAP_NONE.  It will
+         * not contain mipmaps.  On upload, the allocation data will contain a
+         * full mipmap chain generated from the top level in script memory.
+         */
+        MIPMAP_ON_SYNC_TO_TEXTURE(2);
+
+        int mID;
+        MipmapControl(int id) {
+            mID = id;
+        }
+    }
+
+
+    private long getIDSafe() {
+        if (mAdaptedAllocation != null) {
+            return mAdaptedAllocation.getID(mRS);
+        }
+        return getID(mRS);
+    }
+
+
+   /**
+     * Get the {@link android.renderscript.Element} of the {@link
+     * android.renderscript.Type} of the Allocation.
+     *
+     * @return Element
+     *
+     */
+    public Element getElement() {
+        return mType.getElement();
+    }
+
+    /**
+     * Get the usage flags of the Allocation.
+     *
+     * @return usage this Allocation's set of the USAGE_* flags OR'd together
+     *
+     */
+    public int getUsage() {
+        return mUsage;
+    }
+
+    /**
+     * Get the size of the Allocation in bytes.
+     *
+     * @return size of the Allocation in bytes.
+     *
+     */
+    public int getBytesSize() {
+        return mType.getCount() * mType.getElement().getBytesSize();
+    }
+
+    private void updateCacheInfo(Type t) {
+        mCurrentDimX = t.getX();
+        mCurrentDimY = t.getY();
+        mCurrentDimZ = t.getZ();
+        mCurrentCount = mCurrentDimX;
+        if (mCurrentDimY > 1) {
+            mCurrentCount *= mCurrentDimY;
+        }
+        if (mCurrentDimZ > 1) {
+            mCurrentCount *= mCurrentDimZ;
+        }
+    }
+
+    private void setBitmap(Bitmap b) {
+        mBitmap = b;
+    }
+
+    Allocation(long id, RenderScript rs, Type t, int usage) {
+        super(id, rs);
+        if ((usage & ~(USAGE_SCRIPT |
+                       USAGE_GRAPHICS_TEXTURE |
+                       USAGE_GRAPHICS_VERTEX |
+                       USAGE_GRAPHICS_CONSTANTS |
+                       USAGE_GRAPHICS_RENDER_TARGET |
+                       USAGE_IO_INPUT |
+                       USAGE_IO_OUTPUT |
+                       USAGE_SHARED)) != 0) {
+            throw new RSIllegalArgumentException("Unknown usage specified.");
+        }
+
+        if ((usage & USAGE_IO_INPUT) != 0) {
+            mWriteAllowed = false;
+
+            if ((usage & ~(USAGE_IO_INPUT |
+                           USAGE_GRAPHICS_TEXTURE |
+                           USAGE_SCRIPT)) != 0) {
+                throw new RSIllegalArgumentException("Invalid usage combination.");
+            }
+        }
+
+        mType = t;
+        mUsage = usage;
+
+        if (t != null) {
+            // TODO: A3D doesn't have Type info during creation, so we can't
+            // calculate the size ahead of time. We can possibly add a method
+            // to update the size in the future if it seems reasonable.
+            mSize = mType.getCount() * mType.getElement().getBytesSize();
+            updateCacheInfo(t);
+        }
+        try {
+            RenderScript.registerNativeAllocation.invoke(RenderScript.sRuntime, mSize);
+        } catch (Exception e) {
+            Log.e(RenderScript.LOG_TAG, "Couldn't invoke registerNativeAllocation:" + e);
+            throw new RSRuntimeException("Couldn't invoke registerNativeAllocation:" + e);
+        }
+    }
+
+    protected void finalize() throws Throwable {
+        RenderScript.registerNativeFree.invoke(RenderScript.sRuntime, mSize);
+        super.finalize();
+    }
+
+    private void validateIsInt32() {
+        if ((mType.mElement.mType == Element.DataType.SIGNED_32) ||
+            (mType.mElement.mType == Element.DataType.UNSIGNED_32)) {
+            return;
+        }
+        throw new RSIllegalArgumentException(
+            "32 bit integer source does not match allocation type " + mType.mElement.mType);
+    }
+
+    private void validateIsInt16() {
+        if ((mType.mElement.mType == Element.DataType.SIGNED_16) ||
+            (mType.mElement.mType == Element.DataType.UNSIGNED_16)) {
+            return;
+        }
+        throw new RSIllegalArgumentException(
+            "16 bit integer source does not match allocation type " + mType.mElement.mType);
+    }
+
+    private void validateIsInt8() {
+        if ((mType.mElement.mType == Element.DataType.SIGNED_8) ||
+            (mType.mElement.mType == Element.DataType.UNSIGNED_8)) {
+            return;
+        }
+        throw new RSIllegalArgumentException(
+            "8 bit integer source does not match allocation type " + mType.mElement.mType);
+    }
+
+    private void validateIsFloat32() {
+        if (mType.mElement.mType == Element.DataType.FLOAT_32) {
+            return;
+        }
+        throw new RSIllegalArgumentException(
+            "32 bit float source does not match allocation type " + mType.mElement.mType);
+    }
+
+    private void validateIsObject() {
+        if ((mType.mElement.mType == Element.DataType.RS_ELEMENT) ||
+            (mType.mElement.mType == Element.DataType.RS_TYPE) ||
+            (mType.mElement.mType == Element.DataType.RS_ALLOCATION) ||
+            (mType.mElement.mType == Element.DataType.RS_SAMPLER) ||
+            (mType.mElement.mType == Element.DataType.RS_SCRIPT) ||
+            (mType.mElement.mType == Element.DataType.RS_MESH) ||
+            (mType.mElement.mType == Element.DataType.RS_PROGRAM_FRAGMENT) ||
+            (mType.mElement.mType == Element.DataType.RS_PROGRAM_VERTEX) ||
+            (mType.mElement.mType == Element.DataType.RS_PROGRAM_RASTER) ||
+            (mType.mElement.mType == Element.DataType.RS_PROGRAM_STORE)) {
+            return;
+        }
+        throw new RSIllegalArgumentException(
+            "Object source does not match allocation type " + mType.mElement.mType);
+    }
+
+    @Override
+    void updateFromNative() {
+        super.updateFromNative();
+        long typeID = mRS.nAllocationGetType(getID(mRS));
+        if(typeID != 0) {
+            mType = new Type(typeID, mRS);
+            mType.updateFromNative();
+            updateCacheInfo(mType);
+        }
+    }
+
+    /**
+     * Get the {@link android.renderscript.Type} of the Allocation.
+     *
+     * @return Type
+     *
+     */
+    public Type getType() {
+        return mType;
+    }
+
+    /**
+     * Propagate changes from one usage of the Allocation to the
+     * other usages of the Allocation.
+     *
+     */
+    public void syncAll(int srcLocation) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "syncAll");
+        switch (srcLocation) {
+        case USAGE_GRAPHICS_TEXTURE:
+        case USAGE_SCRIPT:
+            if ((mUsage & USAGE_SHARED) != 0) {
+                copyFrom(mBitmap);
+            }
+            break;
+        case USAGE_GRAPHICS_CONSTANTS:
+        case USAGE_GRAPHICS_VERTEX:
+            break;
+        case USAGE_SHARED:
+            if ((mUsage & USAGE_SHARED) != 0) {
+                copyTo(mBitmap);
+            }
+            break;
+        default:
+            throw new RSIllegalArgumentException("Source must be exactly one usage type.");
+        }
+        mRS.validate();
+        mRS.nAllocationSyncAll(getIDSafe(), srcLocation);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Send a buffer to the output stream.  The contents of the Allocation will
+     * be undefined after this operation. This operation is only valid if {@link
+     * #USAGE_IO_OUTPUT} is set on the Allocation.
+     *
+     *
+     */
+    public void ioSend() {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "ioSend");
+        if ((mUsage & USAGE_IO_OUTPUT) == 0) {
+            throw new RSIllegalArgumentException(
+                "Can only send buffer if IO_OUTPUT usage specified.");
+        }
+        mRS.validate();
+        mRS.nAllocationIoSend(getID(mRS));
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Receive the latest input into the Allocation. This operation
+     * is only valid if {@link #USAGE_IO_INPUT} is set on the Allocation.
+     *
+     */
+    public void ioReceive() {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "ioReceive");
+        if ((mUsage & USAGE_IO_INPUT) == 0) {
+            throw new RSIllegalArgumentException(
+                "Can only receive if IO_INPUT usage specified.");
+        }
+        mRS.validate();
+        mRS.nAllocationIoReceive(getID(mRS));
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an array of RS objects to the Allocation.
+     *
+     * @param d Source array.
+     */
+    public void copyFrom(BaseObj[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFrom");
+        mRS.validate();
+        validateIsObject();
+        if (d.length != mCurrentCount) {
+            throw new RSIllegalArgumentException("Array size mismatch, allocation sizeX = " +
+                                                 mCurrentCount + ", array length = " + d.length);
+        }
+        // FIXME: requires 64-bit path
+
+        int i[] = new int[d.length];
+        for (int ct=0; ct < d.length; ct++) {
+            i[ct] = (int)d[ct].getID(mRS);
+        }
+        copy1DRangeFromUnchecked(0, mCurrentCount, i);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    private void validateBitmapFormat(Bitmap b) {
+        Bitmap.Config bc = b.getConfig();
+        if (bc == null) {
+            throw new RSIllegalArgumentException("Bitmap has an unsupported format for this operation");
+        }
+        switch (bc) {
+        case ALPHA_8:
+            if (mType.getElement().mKind != Element.DataKind.PIXEL_A) {
+                throw new RSIllegalArgumentException("Allocation kind is " +
+                                                     mType.getElement().mKind + ", type " +
+                                                     mType.getElement().mType +
+                                                     " of " + mType.getElement().getBytesSize() +
+                                                     " bytes, passed bitmap was " + bc);
+            }
+            break;
+        case ARGB_8888:
+            if ((mType.getElement().mKind != Element.DataKind.PIXEL_RGBA) ||
+                (mType.getElement().getBytesSize() != 4)) {
+                throw new RSIllegalArgumentException("Allocation kind is " +
+                                                     mType.getElement().mKind + ", type " +
+                                                     mType.getElement().mType +
+                                                     " of " + mType.getElement().getBytesSize() +
+                                                     " bytes, passed bitmap was " + bc);
+            }
+            break;
+        case RGB_565:
+            if ((mType.getElement().mKind != Element.DataKind.PIXEL_RGB) ||
+                (mType.getElement().getBytesSize() != 2)) {
+                throw new RSIllegalArgumentException("Allocation kind is " +
+                                                     mType.getElement().mKind + ", type " +
+                                                     mType.getElement().mType +
+                                                     " of " + mType.getElement().getBytesSize() +
+                                                     " bytes, passed bitmap was " + bc);
+            }
+            break;
+        case ARGB_4444:
+            if ((mType.getElement().mKind != Element.DataKind.PIXEL_RGBA) ||
+                (mType.getElement().getBytesSize() != 2)) {
+                throw new RSIllegalArgumentException("Allocation kind is " +
+                                                     mType.getElement().mKind + ", type " +
+                                                     mType.getElement().mType +
+                                                     " of " + mType.getElement().getBytesSize() +
+                                                     " bytes, passed bitmap was " + bc);
+            }
+            break;
+
+        }
+    }
+
+    private void validateBitmapSize(Bitmap b) {
+        if((mCurrentDimX != b.getWidth()) || (mCurrentDimY != b.getHeight())) {
+            throw new RSIllegalArgumentException("Cannot update allocation from bitmap, sizes mismatch");
+        }
+    }
+
+    /**
+     * Copy into this Allocation from an array. This method does not guarantee
+     * that the Allocation is compatible with the input buffer; it copies memory
+     * without reinterpretation.
+     *
+     * @param d the source data array
+     */
+    public void copyFromUnchecked(int[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFromUnchecked");
+        mRS.validate();
+        if (mCurrentDimZ > 0) {
+            copy3DRangeFromUnchecked(0, 0, 0, mCurrentDimX, mCurrentDimY, mCurrentDimZ, d);
+        } else if (mCurrentDimY > 0) {
+            copy2DRangeFromUnchecked(0, 0, mCurrentDimX, mCurrentDimY, d);
+        } else {
+            copy1DRangeFromUnchecked(0, mCurrentCount, d);
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy into this Allocation from an array. This method does not guarantee
+     * that the Allocation is compatible with the input buffer; it copies memory
+     * without reinterpretation.
+     *
+     * @param d the source data array
+     */
+    public void copyFromUnchecked(short[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFromUnchecked");
+        mRS.validate();
+        if (mCurrentDimZ > 0) {
+            copy3DRangeFromUnchecked(0, 0, 0, mCurrentDimX, mCurrentDimY, mCurrentDimZ, d);
+        } else if (mCurrentDimY > 0) {
+            copy2DRangeFromUnchecked(0, 0, mCurrentDimX, mCurrentDimY, d);
+        } else {
+            copy1DRangeFromUnchecked(0, mCurrentCount, d);
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy into this Allocation from an array. This method does not guarantee
+     * that the Allocation is compatible with the input buffer; it copies memory
+     * without reinterpretation.
+     *
+     * @param d the source data array
+     */
+    public void copyFromUnchecked(byte[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFromUnchecked");
+        mRS.validate();
+        if (mCurrentDimZ > 0) {
+            copy3DRangeFromUnchecked(0, 0, 0, mCurrentDimX, mCurrentDimY, mCurrentDimZ, d);
+        } else if (mCurrentDimY > 0) {
+            copy2DRangeFromUnchecked(0, 0, mCurrentDimX, mCurrentDimY, d);
+        } else {
+            copy1DRangeFromUnchecked(0, mCurrentCount, d);
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy into this Allocation from an array. This method does not guarantee
+     * that the Allocation is compatible with the input buffer; it copies memory
+     * without reinterpretation.
+     *
+     * @param d the source data array
+     */
+    public void copyFromUnchecked(float[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFromUnchecked");
+        mRS.validate();
+        if (mCurrentDimZ > 0) {
+            copy3DRangeFromUnchecked(0, 0, 0, mCurrentDimX, mCurrentDimY, mCurrentDimZ, d);
+        } else if (mCurrentDimY > 0) {
+            copy2DRangeFromUnchecked(0, 0, mCurrentDimX, mCurrentDimY, d);
+        } else {
+            copy1DRangeFromUnchecked(0, mCurrentCount, d);
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+
+    /**
+     * Copy into this Allocation from an array.  This variant is type checked
+     * and will generate exceptions if the Allocation's {@link
+     * android.renderscript.Element} is not a 32 bit integer type.
+     *
+     * @param d the source data array
+     */
+    public void copyFrom(int[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFrom");
+        mRS.validate();
+        if (mCurrentDimZ > 0) {
+            copy3DRangeFrom(0, 0, 0, mCurrentDimX, mCurrentDimY, mCurrentDimZ, d);
+        } else if (mCurrentDimY > 0) {
+            copy2DRangeFrom(0, 0, mCurrentDimX, mCurrentDimY, d);
+        } else {
+            copy1DRangeFrom(0, mCurrentCount, d);
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy into this Allocation from an array.  This variant is type checked
+     * and will generate exceptions if the Allocation's {@link
+     * android.renderscript.Element} is not a 16 bit integer type.
+     *
+     * @param d the source data array
+     */
+    public void copyFrom(short[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFrom");
+        mRS.validate();
+        if (mCurrentDimZ > 0) {
+            copy3DRangeFrom(0, 0, 0, mCurrentDimX, mCurrentDimY, mCurrentDimZ, d);
+        } else if (mCurrentDimY > 0) {
+            copy2DRangeFrom(0, 0, mCurrentDimX, mCurrentDimY, d);
+        } else {
+            copy1DRangeFrom(0, mCurrentCount, d);
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy into this Allocation from an array.  This variant is type checked
+     * and will generate exceptions if the Allocation's {@link
+     * android.renderscript.Element} is not an 8 bit integer type.
+     *
+     * @param d the source data array
+     */
+    public void copyFrom(byte[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFrom");
+        mRS.validate();
+        if (mCurrentDimZ > 0) {
+            copy3DRangeFrom(0, 0, 0, mCurrentDimX, mCurrentDimY, mCurrentDimZ, d);
+        } else if (mCurrentDimY > 0) {
+            copy2DRangeFrom(0, 0, mCurrentDimX, mCurrentDimY, d);
+        } else {
+            copy1DRangeFrom(0, mCurrentCount, d);
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy into this Allocation from an array.  This variant is type checked
+     * and will generate exceptions if the Allocation's {@link
+     * android.renderscript.Element} is not a 32 bit float type.
+     *
+     * @param d the source data array
+     */
+    public void copyFrom(float[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFrom");
+        mRS.validate();
+        if (mCurrentDimZ > 0) {
+            copy3DRangeFrom(0, 0, 0, mCurrentDimX, mCurrentDimY, mCurrentDimZ, d);
+        } else if (mCurrentDimY > 0) {
+            copy2DRangeFrom(0, 0, mCurrentDimX, mCurrentDimY, d);
+        } else {
+            copy1DRangeFrom(0, mCurrentCount, d);
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy into an Allocation from a {@link android.graphics.Bitmap}.  The
+     * height, width, and format of the bitmap must match the existing
+     * allocation.
+     *
+     * <p>If the {@link android.graphics.Bitmap} is the same as the {@link
+     * android.graphics.Bitmap} used to create the Allocation with {@link
+     * #createFromBitmap} and {@link #USAGE_SHARED} is set on the Allocation,
+     * this will synchronize the Allocation with the latest data from the {@link
+     * android.graphics.Bitmap}, potentially avoiding the actual copy.</p>
+     *
+     * @param b the source bitmap
+     */
+    public void copyFrom(Bitmap b) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFrom");
+        mRS.validate();
+        if (b.getConfig() == null) {
+            Bitmap newBitmap = Bitmap.createBitmap(b.getWidth(), b.getHeight(), Bitmap.Config.ARGB_8888);
+            Canvas c = new Canvas(newBitmap);
+            c.drawBitmap(b, 0, 0, null);
+            copyFrom(newBitmap);
+            return;
+        }
+        validateBitmapSize(b);
+        validateBitmapFormat(b);
+        mRS.nAllocationCopyFromBitmap(getID(mRS), b);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an Allocation from an Allocation.  The types of both allocations
+     * must be identical.
+     *
+     * @param a the source allocation
+     */
+    public void copyFrom(Allocation a) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyFrom");
+        mRS.validate();
+        if (!mType.equals(a.getType())) {
+            throw new RSIllegalArgumentException("Types of allocations must match.");
+        }
+        copy2DRangeFrom(0, 0, mCurrentDimX, mCurrentDimY, a, 0, 0);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * This is only intended to be used by auto-generated code reflected from
+     * the RenderScript script files and should not be used by developers.
+     *
+     * @param xoff
+     * @param fp
+     */
+    public void setFromFieldPacker(int xoff, FieldPacker fp) {
+        mRS.validate();
+        int eSize = mType.mElement.getBytesSize();
+        final byte[] data = fp.getData();
+
+        int count = data.length / eSize;
+        if ((eSize * count) != data.length) {
+            throw new RSIllegalArgumentException("Field packer length " + data.length +
+                                               " not divisible by element size " + eSize + ".");
+        }
+        copy1DRangeFromUnchecked(xoff, count, data);
+    }
+
+    /**
+     * This is only intended to be used by auto-generated code reflected from
+     * the RenderScript script files.
+     *
+     * @param xoff
+     * @param component_number
+     * @param fp
+     */
+    public void setFromFieldPacker(int xoff, int component_number, FieldPacker fp) {
+        mRS.validate();
+        if (component_number >= mType.mElement.mElements.length) {
+            throw new RSIllegalArgumentException("Component_number " + component_number + " out of range.");
+        }
+        if(xoff < 0) {
+            throw new RSIllegalArgumentException("Offset must be >= 0.");
+        }
+
+        final byte[] data = fp.getData();
+        int eSize = mType.mElement.mElements[component_number].getBytesSize();
+        eSize *= mType.mElement.mArraySizes[component_number];
+
+        if (data.length != eSize) {
+            throw new RSIllegalArgumentException("Field packer sizelength " + data.length +
+                                               " does not match component size " + eSize + ".");
+        }
+
+        mRS.nAllocationElementData1D(getIDSafe(), xoff, mSelectedLOD,
+                                     component_number, data, data.length);
+    }
+
+    private void data1DChecks(int off, int count, int len, int dataSize) {
+        mRS.validate();
+        if(off < 0) {
+            throw new RSIllegalArgumentException("Offset must be >= 0.");
+        }
+        if(count < 1) {
+            throw new RSIllegalArgumentException("Count must be >= 1.");
+        }
+        if((off + count) > mCurrentCount) {
+            throw new RSIllegalArgumentException("Overflow, Available count " + mCurrentCount +
+                                               ", got " + count + " at offset " + off + ".");
+        }
+        if(len < dataSize) {
+            throw new RSIllegalArgumentException("Array too small for allocation type.");
+        }
+    }
+
+    /**
+     * Generate a mipmap chain. This is only valid if the Type of the Allocation
+     * includes mipmaps.
+     *
+     * <p>This function will generate a complete set of mipmaps from the top
+     * level LOD and place them into the script memory space.</p>
+     *
+     * <p>If the Allocation is also using other memory spaces, a call to {@link
+     * #syncAll syncAll(Allocation.USAGE_SCRIPT)} is required.</p>
+     */
+    public void generateMipmaps() {
+        mRS.nAllocationGenerateMipmaps(getID(mRS));
+    }
+
+    /**
+     * Copy an array into part of this Allocation.  This method does not
+     * guarantee that the Allocation is compatible with the input buffer.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param d the source data array
+     */
+    public void copy1DRangeFromUnchecked(int off, int count, int[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFromUnchecked");
+        int dataSize = mType.mElement.getBytesSize() * count;
+        data1DChecks(off, count, d.length * 4, dataSize);
+        mRS.nAllocationData1D(getIDSafe(), off, mSelectedLOD, count, d, dataSize, Element.DataType.SIGNED_32);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an array into part of this Allocation.  This method does not
+     * guarantee that the Allocation is compatible with the input buffer.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param d the source data array
+     */
+    public void copy1DRangeFromUnchecked(int off, int count, short[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFromUnchecked");
+        int dataSize = mType.mElement.getBytesSize() * count;
+        data1DChecks(off, count, d.length * 2, dataSize);
+        mRS.nAllocationData1D(getIDSafe(), off, mSelectedLOD, count, d, dataSize, Element.DataType.SIGNED_16);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an array into part of this Allocation.  This method does not
+     * guarantee that the Allocation is compatible with the input buffer.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param d the source data array
+     */
+    public void copy1DRangeFromUnchecked(int off, int count, byte[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFromUnchecked");
+        int dataSize = mType.mElement.getBytesSize() * count;
+        data1DChecks(off, count, d.length, dataSize);
+        mRS.nAllocationData1D(getIDSafe(), off, mSelectedLOD, count, d, dataSize, Element.DataType.SIGNED_8);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an array into part of this Allocation.  This method does not
+     * guarantee that the Allocation is compatible with the input buffer.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param d the source data array
+     */
+    public void copy1DRangeFromUnchecked(int off, int count, float[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFromUnchecked");
+        int dataSize = mType.mElement.getBytesSize() * count;
+        data1DChecks(off, count, d.length * 4, dataSize);
+        mRS.nAllocationData1D(getIDSafe(), off, mSelectedLOD, count, d, dataSize, Element.DataType.FLOAT_32);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an array into part of this Allocation.  This variant is type checked
+     * and will generate exceptions if the Allocation type is not a 32 bit
+     * integer type.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param d the source data array
+     */
+    public void copy1DRangeFrom(int off, int count, int[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFrom");
+        validateIsInt32();
+        copy1DRangeFromUnchecked(off, count, d);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an array into part of this Allocation.  This variant is type checked
+     * and will generate exceptions if the Allocation type is not a 16 bit
+     * integer type.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param d the source data array
+     */
+    public void copy1DRangeFrom(int off, int count, short[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFrom");
+        validateIsInt16();
+        copy1DRangeFromUnchecked(off, count, d);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an array into part of this Allocation.  This variant is type checked
+     * and will generate exceptions if the Allocation type is not an 8 bit
+     * integer type.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param d the source data array
+     */
+    public void copy1DRangeFrom(int off, int count, byte[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFrom");
+        validateIsInt8();
+        copy1DRangeFromUnchecked(off, count, d);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy an array into part of this Allocation.  This variant is type checked
+     * and will generate exceptions if the Allocation type is not a 32 bit float
+     * type.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param d the source data array.
+     */
+    public void copy1DRangeFrom(int off, int count, float[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFrom");
+        validateIsFloat32();
+        copy1DRangeFromUnchecked(off, count, d);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+     /**
+     * Copy part of an Allocation into this Allocation.
+     *
+     * @param off The offset of the first element to be copied.
+     * @param count The number of elements to be copied.
+     * @param data the source data allocation.
+     * @param dataOff off The offset of the first element in data to
+     *          be copied.
+     */
+    public void copy1DRangeFrom(int off, int count, Allocation data, int dataOff) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy1DRangeFrom");
+        mRS.nAllocationData2D(getIDSafe(), off, 0,
+                              mSelectedLOD, mSelectedFace.mID,
+                              count, 1, data.getID(mRS), dataOff, 0,
+                              data.mSelectedLOD, data.mSelectedFace.mID);
+    }
+
+    private void validate2DRange(int xoff, int yoff, int w, int h) {
+        if (mAdaptedAllocation != null) {
+
+        } else {
+
+            if (xoff < 0 || yoff < 0) {
+                throw new RSIllegalArgumentException("Offset cannot be negative.");
+            }
+            if (h < 0 || w < 0) {
+                throw new RSIllegalArgumentException("Height or width cannot be negative.");
+            }
+            if (((xoff + w) > mCurrentDimX) || ((yoff + h) > mCurrentDimY)) {
+                throw new RSIllegalArgumentException("Updated region larger than allocation.");
+            }
+        }
+    }
+
+    void copy2DRangeFromUnchecked(int xoff, int yoff, int w, int h, byte[] data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFromUnchecked");
+        mRS.validate();
+        validate2DRange(xoff, yoff, w, h);
+        mRS.nAllocationData2D(getIDSafe(), xoff, yoff, mSelectedLOD, mSelectedFace.mID,
+                              w, h, data, data.length, Element.DataType.SIGNED_8);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    void copy2DRangeFromUnchecked(int xoff, int yoff, int w, int h, short[] data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFromUnchecked");
+        mRS.validate();
+        validate2DRange(xoff, yoff, w, h);
+        mRS.nAllocationData2D(getIDSafe(), xoff, yoff, mSelectedLOD, mSelectedFace.mID,
+                              w, h, data, data.length * 2, Element.DataType.SIGNED_16);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    void copy2DRangeFromUnchecked(int xoff, int yoff, int w, int h, int[] data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFromUnchecked");
+        mRS.validate();
+        validate2DRange(xoff, yoff, w, h);
+        mRS.nAllocationData2D(getIDSafe(), xoff, yoff, mSelectedLOD, mSelectedFace.mID,
+                              w, h, data, data.length * 4, Element.DataType.SIGNED_32);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    void copy2DRangeFromUnchecked(int xoff, int yoff, int w, int h, float[] data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFromUnchecked");
+        mRS.validate();
+        validate2DRange(xoff, yoff, w, h);
+        mRS.nAllocationData2D(getIDSafe(), xoff, yoff, mSelectedLOD, mSelectedFace.mID,
+                              w, h, data, data.length * 4, Element.DataType.FLOAT_32);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy from an array into a rectangular region in this Allocation.  The
+     * array is assumed to be tightly packed.
+     *
+     * @param xoff X offset of the region to update in this Allocation
+     * @param yoff Y offset of the region to update in this Allocation
+     * @param w Width of the region to update
+     * @param h Height of the region to update
+     * @param data to be placed into the Allocation
+     */
+    public void copy2DRangeFrom(int xoff, int yoff, int w, int h, byte[] data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFrom");
+        validateIsInt8();
+        copy2DRangeFromUnchecked(xoff, yoff, w, h, data);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy from an array into a rectangular region in this Allocation.  The
+     * array is assumed to be tightly packed.
+     *
+     * @param xoff X offset of the region to update in this Allocation
+     * @param yoff Y offset of the region to update in this Allocation
+     * @param w Width of the region to update
+     * @param h Height of the region to update
+     * @param data to be placed into the Allocation
+     */
+    public void copy2DRangeFrom(int xoff, int yoff, int w, int h, short[] data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFrom");
+        validateIsInt16();
+        copy2DRangeFromUnchecked(xoff, yoff, w, h, data);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy from an array into a rectangular region in this Allocation.  The
+     * array is assumed to be tightly packed.
+     *
+     * @param xoff X offset of the region to update in this Allocation
+     * @param yoff Y offset of the region to update in this Allocation
+     * @param w Width of the region to update
+     * @param h Height of the region to update
+     * @param data to be placed into the Allocation
+     */
+    public void copy2DRangeFrom(int xoff, int yoff, int w, int h, int[] data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFrom");
+        validateIsInt32();
+        copy2DRangeFromUnchecked(xoff, yoff, w, h, data);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy from an array into a rectangular region in this Allocation.  The
+     * array is assumed to be tightly packed.
+     *
+     * @param xoff X offset of the region to update in this Allocation
+     * @param yoff Y offset of the region to update in this Allocation
+     * @param w Width of the region to update
+     * @param h Height of the region to update
+     * @param data to be placed into the Allocation
+     */
+    public void copy2DRangeFrom(int xoff, int yoff, int w, int h, float[] data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFrom");
+        validateIsFloat32();
+        copy2DRangeFromUnchecked(xoff, yoff, w, h, data);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy a rectangular region from an Allocation into a rectangular region in
+     * this Allocation.
+     *
+     * @param xoff X offset of the region in this Allocation
+     * @param yoff Y offset of the region in this Allocation
+     * @param w Width of the region to update.
+     * @param h Height of the region to update.
+     * @param data source Allocation.
+     * @param dataXoff X offset in source Allocation
+     * @param dataYoff Y offset in source Allocation
+     */
+    public void copy2DRangeFrom(int xoff, int yoff, int w, int h,
+                                Allocation data, int dataXoff, int dataYoff) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFrom");
+        mRS.validate();
+        validate2DRange(xoff, yoff, w, h);
+        mRS.nAllocationData2D(getIDSafe(), xoff, yoff,
+                              mSelectedLOD, mSelectedFace.mID,
+                              w, h, data.getID(mRS), dataXoff, dataYoff,
+                              data.mSelectedLOD, data.mSelectedFace.mID);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy a {@link android.graphics.Bitmap} into an Allocation.  The height
+     * and width of the update will use the height and width of the {@link
+     * android.graphics.Bitmap}.
+     *
+     * @param xoff X offset of the region to update in this Allocation
+     * @param yoff Y offset of the region to update in this Allocation
+     * @param data the Bitmap to be copied
+     */
+    public void copy2DRangeFrom(int xoff, int yoff, Bitmap data) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copy2DRangeFrom");
+        mRS.validate();
+        if (data.getConfig() == null) {
+            Bitmap newBitmap = Bitmap.createBitmap(data.getWidth(), data.getHeight(), Bitmap.Config.ARGB_8888);
+            Canvas c = new Canvas(newBitmap);
+            c.drawBitmap(data, 0, 0, null);
+            copy2DRangeFrom(xoff, yoff, newBitmap);
+            return;
+        }
+        validateBitmapFormat(data);
+        validate2DRange(xoff, yoff, data.getWidth(), data.getHeight());
+        mRS.nAllocationData2D(getIDSafe(), xoff, yoff, mSelectedLOD, mSelectedFace.mID, data);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    private void validate3DRange(int xoff, int yoff, int zoff, int w, int h, int d) {
+        if (mAdaptedAllocation != null) {
+
+        } else {
+
+            if (xoff < 0 || yoff < 0 || zoff < 0) {
+                throw new RSIllegalArgumentException("Offset cannot be negative.");
+            }
+            if (h < 0 || w < 0 || d < 0) {
+                throw new RSIllegalArgumentException("Height or width cannot be negative.");
+            }
+            if (((xoff + w) > mCurrentDimX) || ((yoff + h) > mCurrentDimY) || ((zoff + d) > mCurrentDimZ)) {
+                throw new RSIllegalArgumentException("Updated region larger than allocation.");
+            }
+        }
+    }
+
+    /**
+     * @hide
+     *
+     */
+    void copy3DRangeFromUnchecked(int xoff, int yoff, int zoff, int w, int h, int d, byte[] data) {
+        mRS.validate();
+        validate3DRange(xoff, yoff, zoff, w, h, d);
+        mRS.nAllocationData3D(getIDSafe(), xoff, yoff, zoff, mSelectedLOD,
+                              w, h, d, data, data.length, Element.DataType.SIGNED_8);
+    }
+
+    /**
+     * @hide
+     *
+     */
+    void copy3DRangeFromUnchecked(int xoff, int yoff, int zoff, int w, int h, int d, short[] data) {
+        mRS.validate();
+        validate3DRange(xoff, yoff, zoff, w, h, d);
+        mRS.nAllocationData3D(getIDSafe(), xoff, yoff, zoff, mSelectedLOD,
+                              w, h, d, data, data.length * 2, Element.DataType.SIGNED_16);
+    }
+
+    /**
+     * @hide
+     *
+     */
+    void copy3DRangeFromUnchecked(int xoff, int yoff, int zoff, int w, int h, int d, int[] data) {
+        mRS.validate();
+        validate3DRange(xoff, yoff, zoff, w, h, d);
+        mRS.nAllocationData3D(getIDSafe(), xoff, yoff, zoff, mSelectedLOD,
+                              w, h, d, data, data.length * 4, Element.DataType.SIGNED_32);
+    }
+
+    /**
+     * @hide
+     *
+     */
+    void copy3DRangeFromUnchecked(int xoff, int yoff, int zoff, int w, int h, int d, float[] data) {
+        mRS.validate();
+        validate3DRange(xoff, yoff, zoff, w, h, d);
+        mRS.nAllocationData3D(getIDSafe(), xoff, yoff, zoff, mSelectedLOD,
+                              w, h, d, data, data.length * 4, Element.DataType.FLOAT_32);
+    }
+
+
+    /**
+     * @hide
+     * Copy a rectangular region from the array into the allocation.
+     * The array is assumed to be tightly packed.
+     *
+     * @param xoff X offset of the region to update in this Allocation
+     * @param yoff Y offset of the region to update in this Allocation
+     * @param zoff Z offset of the region to update in this Allocation
+     * @param w Width of the region to update
+     * @param h Height of the region to update
+     * @param d Depth of the region to update
+     * @param data to be placed into the allocation
+     */
+    public void copy3DRangeFrom(int xoff, int yoff, int zoff, int w, int h, int d, byte[] data) {
+        validateIsInt8();
+        copy3DRangeFromUnchecked(xoff, yoff, zoff, w, h, d, data);
+    }
+
+    /**
+     * @hide
+     *
+     */
+    public void copy3DRangeFrom(int xoff, int yoff, int zoff, int w, int h, int d, short[] data) {
+        validateIsInt16();
+        copy3DRangeFromUnchecked(xoff, yoff, zoff, w, h, d, data);
+    }
+
+    /**
+     * @hide
+     *
+     */
+    public void copy3DRangeFrom(int xoff, int yoff, int zoff, int w, int h, int d, int[] data) {
+        validateIsInt32();
+        copy3DRangeFromUnchecked(xoff, yoff, zoff, w, h, d, data);
+    }
+
+    /**
+     * @hide
+     *
+     */
+    public void copy3DRangeFrom(int xoff, int yoff, int zoff, int w, int h, int d, float[] data) {
+        validateIsFloat32();
+        copy3DRangeFromUnchecked(xoff, yoff, zoff, w, h, d, data);
+    }
+
+    /**
+     * @hide
+     * Copy a rectangular region into the allocation from another
+     * allocation.
+     *
+     * @param xoff X offset of the region to update in this Allocation
+     * @param yoff Y offset of the region to update in this Allocation
+     * @param zoff Z offset of the region to update in this Allocation
+     * @param w Width of the region to update.
+     * @param h Height of the region to update.
+     * @param d Depth of the region to update.
+     * @param data source allocation.
+     * @param dataXoff X offset of the region in the source Allocation
+     * @param dataYoff Y offset of the region in the source Allocation
+     * @param dataZoff Z offset of the region in the source Allocation
+     */
+    public void copy3DRangeFrom(int xoff, int yoff, int zoff, int w, int h, int d,
+                                Allocation data, int dataXoff, int dataYoff, int dataZoff) {
+        mRS.validate();
+        validate3DRange(xoff, yoff, zoff, w, h, d);
+        mRS.nAllocationData3D(getIDSafe(), xoff, yoff, zoff, mSelectedLOD,
+                              w, h, d, data.getID(mRS), dataXoff, dataYoff, dataZoff,
+                              data.mSelectedLOD);
+    }
+
+
+    /**
+     * Copy from the Allocation into a {@link android.graphics.Bitmap}.  The
+     * bitmap must match the dimensions of the Allocation.
+     *
+     * @param b The bitmap to be set from the Allocation.
+     */
+    public void copyTo(Bitmap b) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyTo");
+        mRS.validate();
+        validateBitmapFormat(b);
+        validateBitmapSize(b);
+        mRS.nAllocationCopyToBitmap(getID(mRS), b);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy from the Allocation into a byte array.  The array must be at least
+     * as large as the Allocation.  The allocation must be of an 8 bit integer
+     * {@link android.renderscript.Element} type.
+     *
+     * @param d The array to be set from the Allocation.
+     */
+    public void copyTo(byte[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyTo");
+        validateIsInt8();
+        mRS.validate();
+        mRS.nAllocationRead(getID(mRS), d, Element.DataType.SIGNED_8);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy from the Allocation into a short array.  The array must be at least
+     * as large as the Allocation.  The allocation must be of an 16 bit integer
+     * {@link android.renderscript.Element} type.
+     *
+     * @param d The array to be set from the Allocation.
+     */
+    public void copyTo(short[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyTo");
+        validateIsInt16();
+        mRS.validate();
+        mRS.nAllocationRead(getID(mRS), d, Element.DataType.SIGNED_16);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy from the Allocation into a int array.  The array must be at least as
+     * large as the Allocation.  The allocation must be of an 32 bit integer
+     * {@link android.renderscript.Element} type.
+     *
+     * @param d The array to be set from the Allocation.
+     */
+    public void copyTo(int[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyTo");
+        validateIsInt32();
+        mRS.validate();
+        mRS.nAllocationRead(getID(mRS), d, Element.DataType.SIGNED_32);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Copy from the Allocation into a float array.  The array must be at least
+     * as large as the Allocation.  The allocation must be of an 32 bit float
+     * {@link android.renderscript.Element} type.
+     *
+     * @param d The array to be set from the Allocation.
+     */
+    public void copyTo(float[] d) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "copyTo");
+        validateIsFloat32();
+        mRS.validate();
+        mRS.nAllocationRead(getID(mRS), d, Element.DataType.FLOAT_32);
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+    }
+
+    /**
+     * Resize a 1D allocation.  The contents of the allocation are preserved.
+     * If new elements are allocated objects are created with null contents and
+     * the new region is otherwise undefined.
+     *
+     * <p>If the new region is smaller the references of any objects outside the
+     * new region will be released.</p>
+     *
+     * <p>A new type will be created with the new dimension.</p>
+     *
+     * @param dimX The new size of the allocation.
+     *
+     * @deprecated RenderScript objects should be immutable once created.  The
+     * replacement is to create a new allocation and copy the contents.
+     */
+    public synchronized void resize(int dimX) {
+        if ((mType.getY() > 0)|| (mType.getZ() > 0) || mType.hasFaces() || mType.hasMipmaps()) {
+            throw new RSInvalidStateException("Resize only support for 1D allocations at this time.");
+        }
+        mRS.nAllocationResize1D(getID(mRS), dimX);
+        mRS.finish();  // Necessary because resize is fifoed and update is async.
+
+        long typeID = mRS.nAllocationGetType(getID(mRS));
+        mType = new Type(typeID, mRS);
+        mType.updateFromNative();
+        updateCacheInfo(mType);
+    }
+
+
+    // creation
+
+    static BitmapFactory.Options mBitmapOptions = new BitmapFactory.Options();
+    static {
+        mBitmapOptions.inScaled = false;
+    }
+
+    /**
+     * Creates a new Allocation with the given {@link
+     * android.renderscript.Type}, mipmap flag, and usage flags.
+     *
+     * @param type RenderScript type describing data layout
+     * @param mips specifies desired mipmap behaviour for the
+     *             allocation
+     * @param usage bit field specifying how the Allocation is
+     *              utilized
+     */
+    static public Allocation createTyped(RenderScript rs, Type type, MipmapControl mips, int usage) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "createTyped");
+        rs.validate();
+        if (type.getID(rs) == 0) {
+            throw new RSInvalidStateException("Bad Type");
+        }
+        long id = rs.nAllocationCreateTyped(type.getID(rs), mips.mID, usage, 0);
+        if (id == 0) {
+            throw new RSRuntimeException("Allocation creation failed.");
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+        return new Allocation(id, rs, type, usage);
+    }
+
+    /**
+     * Creates an Allocation with the size specified by the type and no mipmaps
+     * generated by default
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param type renderscript type describing data layout
+     * @param usage bit field specifying how the allocation is
+     *              utilized
+     *
+     * @return allocation
+     */
+    static public Allocation createTyped(RenderScript rs, Type type, int usage) {
+        return createTyped(rs, type, MipmapControl.MIPMAP_NONE, usage);
+    }
+
+    /**
+     * Creates an Allocation for use by scripts with a given {@link
+     * android.renderscript.Type} and no mipmaps
+     *
+     * @param rs Context to which the Allocation will belong.
+     * @param type RenderScript Type describing data layout
+     *
+     * @return allocation
+     */
+    static public Allocation createTyped(RenderScript rs, Type type) {
+        return createTyped(rs, type, MipmapControl.MIPMAP_NONE, USAGE_SCRIPT);
+    }
+
+    /**
+     * Creates an Allocation with a specified number of given elements
+     *
+     * @param rs Context to which the Allocation will belong.
+     * @param e Element to use in the Allocation
+     * @param count the number of Elements in the Allocation
+     * @param usage bit field specifying how the Allocation is
+     *              utilized
+     *
+     * @return allocation
+     */
+    static public Allocation createSized(RenderScript rs, Element e,
+                                         int count, int usage) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "createSized");
+        rs.validate();
+        Type.Builder b = new Type.Builder(rs, e);
+        b.setX(count);
+        Type t = b.create();
+
+        long id = rs.nAllocationCreateTyped(t.getID(rs), MipmapControl.MIPMAP_NONE.mID, usage, 0);
+        if (id == 0) {
+            throw new RSRuntimeException("Allocation creation failed.");
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+        return new Allocation(id, rs, t, usage);
+    }
+
+    /**
+     * Creates an Allocation with a specified number of given elements
+     *
+     * @param rs Context to which the Allocation will belong.
+     * @param e Element to use in the Allocation
+     * @param count the number of Elements in the Allocation
+     *
+     * @return allocation
+     */
+    static public Allocation createSized(RenderScript rs, Element e, int count) {
+        return createSized(rs, e, count, USAGE_SCRIPT);
+    }
+
+    static Element elementFromBitmap(RenderScript rs, Bitmap b) {
+        final Bitmap.Config bc = b.getConfig();
+        if (bc == Bitmap.Config.ALPHA_8) {
+            return Element.A_8(rs);
+        }
+        if (bc == Bitmap.Config.ARGB_4444) {
+            return Element.RGBA_4444(rs);
+        }
+        if (bc == Bitmap.Config.ARGB_8888) {
+            return Element.RGBA_8888(rs);
+        }
+        if (bc == Bitmap.Config.RGB_565) {
+            return Element.RGB_565(rs);
+        }
+        throw new RSInvalidStateException("Bad bitmap type: " + bc);
+    }
+
+    static Type typeFromBitmap(RenderScript rs, Bitmap b,
+                                       MipmapControl mip) {
+        Element e = elementFromBitmap(rs, b);
+        Type.Builder tb = new Type.Builder(rs, e);
+        tb.setX(b.getWidth());
+        tb.setY(b.getHeight());
+        tb.setMipmaps(mip == MipmapControl.MIPMAP_FULL);
+        return tb.create();
+    }
+
+    /**
+     * Creates an Allocation from a {@link android.graphics.Bitmap}.
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param b Bitmap source for the allocation data
+     * @param mips specifies desired mipmap behaviour for the
+     *             allocation
+     * @param usage bit field specifying how the allocation is
+     *              utilized
+     *
+     * @return Allocation containing bitmap data
+     *
+     */
+    static public Allocation createFromBitmap(RenderScript rs, Bitmap b,
+                                              MipmapControl mips,
+                                              int usage) {
+        Trace.traceBegin(RenderScript.TRACE_TAG, "createFromBitmap");
+        rs.validate();
+
+        // WAR undocumented color formats
+        if (b.getConfig() == null) {
+            if ((usage & USAGE_SHARED) != 0) {
+                throw new RSIllegalArgumentException("USAGE_SHARED cannot be used with a Bitmap that has a null config.");
+            }
+            Bitmap newBitmap = Bitmap.createBitmap(b.getWidth(), b.getHeight(), Bitmap.Config.ARGB_8888);
+            Canvas c = new Canvas(newBitmap);
+            c.drawBitmap(b, 0, 0, null);
+            return createFromBitmap(rs, newBitmap, mips, usage);
+        }
+
+        Type t = typeFromBitmap(rs, b, mips);
+
+        // enable optimized bitmap path only with no mipmap and script-only usage
+        if (mips == MipmapControl.MIPMAP_NONE &&
+            t.getElement().isCompatible(Element.RGBA_8888(rs)) &&
+            usage == (USAGE_SHARED | USAGE_SCRIPT | USAGE_GRAPHICS_TEXTURE)) {
+            long id = rs.nAllocationCreateBitmapBackedAllocation(t.getID(rs), mips.mID, b, usage);
+            if (id == 0) {
+                throw new RSRuntimeException("Load failed.");
+            }
+
+            // keep a reference to the Bitmap around to prevent GC
+            Allocation alloc = new Allocation(id, rs, t, usage);
+            alloc.setBitmap(b);
+            return alloc;
+        }
+
+
+        long id = rs.nAllocationCreateFromBitmap(t.getID(rs), mips.mID, b, usage);
+        if (id == 0) {
+            throw new RSRuntimeException("Load failed.");
+        }
+        Trace.traceEnd(RenderScript.TRACE_TAG);
+        return new Allocation(id, rs, t, usage);
+    }
+
+    /**
+     * Returns the handle to a raw buffer that is being managed by the screen
+     * compositor. This operation is only valid for Allocations with {@link
+     * #USAGE_IO_INPUT}.
+     *
+     * @return Surface object associated with allocation
+     *
+     */
+    public Surface getSurface() {
+        if ((mUsage & USAGE_IO_INPUT) == 0) {
+            throw new RSInvalidStateException("Allocation is not a surface texture.");
+        }
+        return mRS.nAllocationGetSurface(getID(mRS));
+    }
+
+    /**
+     * Associate a {@link android.view.Surface} with this Allocation. This
+     * operation is only valid for Allocations with {@link #USAGE_IO_OUTPUT}.
+     *
+     * @param sur Surface to associate with allocation
+     */
+    public void setSurface(Surface sur) {
+        mRS.validate();
+        if ((mUsage & USAGE_IO_OUTPUT) == 0) {
+            throw new RSInvalidStateException("Allocation is not USAGE_IO_OUTPUT.");
+        }
+
+        mRS.nAllocationSetSurface(getID(mRS), sur);
+    }
+
+    /**
+     * Creates an Allocation from a {@link android.graphics.Bitmap}.
+     *
+     * <p>With target API version 18 or greater, this Allocation will be created
+     * with {@link #USAGE_SHARED}, {@link #USAGE_SCRIPT}, and {@link
+     * #USAGE_GRAPHICS_TEXTURE}. With target API version 17 or lower, this
+     * Allocation will be created with {@link #USAGE_GRAPHICS_TEXTURE}.</p>
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param b bitmap source for the allocation data
+     *
+     * @return Allocation containing bitmap data
+     *
+     */
+    static public Allocation createFromBitmap(RenderScript rs, Bitmap b) {
+        if (rs.getApplicationContext().getApplicationInfo().targetSdkVersion >= 18) {
+            return createFromBitmap(rs, b, MipmapControl.MIPMAP_NONE,
+                                    USAGE_SHARED | USAGE_SCRIPT | USAGE_GRAPHICS_TEXTURE);
+        }
+        return createFromBitmap(rs, b, MipmapControl.MIPMAP_NONE,
+                                USAGE_GRAPHICS_TEXTURE);
+    }
+
+    /**
+     * Creates a cubemap Allocation from a {@link android.graphics.Bitmap}
+     * containing the horizontal list of cube faces. Each face must be a square,
+     * have the same size as all other faces, and have a width that is a power
+     * of 2.
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param b Bitmap with cubemap faces layed out in the following
+     *          format: right, left, top, bottom, front, back
+     * @param mips specifies desired mipmap behaviour for the cubemap
+     * @param usage bit field specifying how the cubemap is utilized
+     *
+     * @return allocation containing cubemap data
+     *
+     */
+    static public Allocation createCubemapFromBitmap(RenderScript rs, Bitmap b,
+                                                     MipmapControl mips,
+                                                     int usage) {
+        rs.validate();
+
+        int height = b.getHeight();
+        int width = b.getWidth();
+
+        if (width % 6 != 0) {
+            throw new RSIllegalArgumentException("Cubemap height must be multiple of 6");
+        }
+        if (width / 6 != height) {
+            throw new RSIllegalArgumentException("Only square cube map faces supported");
+        }
+        boolean isPow2 = (height & (height - 1)) == 0;
+        if (!isPow2) {
+            throw new RSIllegalArgumentException("Only power of 2 cube faces supported");
+        }
+
+        Element e = elementFromBitmap(rs, b);
+        Type.Builder tb = new Type.Builder(rs, e);
+        tb.setX(height);
+        tb.setY(height);
+        tb.setFaces(true);
+        tb.setMipmaps(mips == MipmapControl.MIPMAP_FULL);
+        Type t = tb.create();
+
+        long id = rs.nAllocationCubeCreateFromBitmap(t.getID(rs), mips.mID, b, usage);
+        if(id == 0) {
+            throw new RSRuntimeException("Load failed for bitmap " + b + " element " + e);
+        }
+        return new Allocation(id, rs, t, usage);
+    }
+
+    /**
+     * Creates a non-mipmapped cubemap Allocation for use as a graphics texture
+     * from a {@link android.graphics.Bitmap} containing the horizontal list of
+     * cube faces. Each face must be a square, have the same size as all other
+     * faces, and have a width that is a power of 2.
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param b bitmap with cubemap faces layed out in the following
+     *          format: right, left, top, bottom, front, back
+     *
+     * @return allocation containing cubemap data
+     *
+     */
+    static public Allocation createCubemapFromBitmap(RenderScript rs,
+                                                     Bitmap b) {
+        return createCubemapFromBitmap(rs, b, MipmapControl.MIPMAP_NONE,
+                                       USAGE_GRAPHICS_TEXTURE);
+    }
+
+    /**
+     * Creates a cubemap Allocation from 6 {@link android.graphics.Bitmap}
+     * objects containing the cube faces. Each face must be a square, have the
+     * same size as all other faces, and have a width that is a power of 2.
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param xpos cubemap face in the positive x direction
+     * @param xneg cubemap face in the negative x direction
+     * @param ypos cubemap face in the positive y direction
+     * @param yneg cubemap face in the negative y direction
+     * @param zpos cubemap face in the positive z direction
+     * @param zneg cubemap face in the negative z direction
+     * @param mips specifies desired mipmap behaviour for the cubemap
+     * @param usage bit field specifying how the cubemap is utilized
+     *
+     * @return allocation containing cubemap data
+     *
+     */
+    static public Allocation createCubemapFromCubeFaces(RenderScript rs,
+                                                        Bitmap xpos,
+                                                        Bitmap xneg,
+                                                        Bitmap ypos,
+                                                        Bitmap yneg,
+                                                        Bitmap zpos,
+                                                        Bitmap zneg,
+                                                        MipmapControl mips,
+                                                        int usage) {
+        int height = xpos.getHeight();
+        if (xpos.getWidth() != height ||
+            xneg.getWidth() != height || xneg.getHeight() != height ||
+            ypos.getWidth() != height || ypos.getHeight() != height ||
+            yneg.getWidth() != height || yneg.getHeight() != height ||
+            zpos.getWidth() != height || zpos.getHeight() != height ||
+            zneg.getWidth() != height || zneg.getHeight() != height) {
+            throw new RSIllegalArgumentException("Only square cube map faces supported");
+        }
+        boolean isPow2 = (height & (height - 1)) == 0;
+        if (!isPow2) {
+            throw new RSIllegalArgumentException("Only power of 2 cube faces supported");
+        }
+
+        Element e = elementFromBitmap(rs, xpos);
+        Type.Builder tb = new Type.Builder(rs, e);
+        tb.setX(height);
+        tb.setY(height);
+        tb.setFaces(true);
+        tb.setMipmaps(mips == MipmapControl.MIPMAP_FULL);
+        Type t = tb.create();
+        Allocation cubemap = Allocation.createTyped(rs, t, mips, usage);
+
+        AllocationAdapter adapter = AllocationAdapter.create2D(rs, cubemap);
+        adapter.setFace(Type.CubemapFace.POSITIVE_X);
+        adapter.copyFrom(xpos);
+        adapter.setFace(Type.CubemapFace.NEGATIVE_X);
+        adapter.copyFrom(xneg);
+        adapter.setFace(Type.CubemapFace.POSITIVE_Y);
+        adapter.copyFrom(ypos);
+        adapter.setFace(Type.CubemapFace.NEGATIVE_Y);
+        adapter.copyFrom(yneg);
+        adapter.setFace(Type.CubemapFace.POSITIVE_Z);
+        adapter.copyFrom(zpos);
+        adapter.setFace(Type.CubemapFace.NEGATIVE_Z);
+        adapter.copyFrom(zneg);
+
+        return cubemap;
+    }
+
+    /**
+     * Creates a non-mipmapped cubemap Allocation for use as a sampler input
+     * from 6 {@link android.graphics.Bitmap} objects containing the cube
+     * faces. Each face must be a square, have the same size as all other faces,
+     * and have a width that is a power of 2.
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param xpos cubemap face in the positive x direction
+     * @param xneg cubemap face in the negative x direction
+     * @param ypos cubemap face in the positive y direction
+     * @param yneg cubemap face in the negative y direction
+     * @param zpos cubemap face in the positive z direction
+     * @param zneg cubemap face in the negative z direction
+     *
+     * @return allocation containing cubemap data
+     *
+     */
+    static public Allocation createCubemapFromCubeFaces(RenderScript rs,
+                                                        Bitmap xpos,
+                                                        Bitmap xneg,
+                                                        Bitmap ypos,
+                                                        Bitmap yneg,
+                                                        Bitmap zpos,
+                                                        Bitmap zneg) {
+        return createCubemapFromCubeFaces(rs, xpos, xneg, ypos, yneg,
+                                          zpos, zneg, MipmapControl.MIPMAP_NONE,
+                                          USAGE_GRAPHICS_TEXTURE);
+    }
+
+    /**
+     * Creates an Allocation from the Bitmap referenced
+     * by resource ID.
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param res application resources
+     * @param id resource id to load the data from
+     * @param mips specifies desired mipmap behaviour for the
+     *             allocation
+     * @param usage bit field specifying how the allocation is
+     *              utilized
+     *
+     * @return Allocation containing resource data
+     *
+     */
+    static public Allocation createFromBitmapResource(RenderScript rs,
+                                                      Resources res,
+                                                      int id,
+                                                      MipmapControl mips,
+                                                      int usage) {
+
+        rs.validate();
+        if ((usage & (USAGE_SHARED | USAGE_IO_INPUT | USAGE_IO_OUTPUT)) != 0) {
+            throw new RSIllegalArgumentException("Unsupported usage specified.");
+        }
+        Bitmap b = BitmapFactory.decodeResource(res, id);
+        Allocation alloc = createFromBitmap(rs, b, mips, usage);
+        b.recycle();
+        return alloc;
+    }
+
+    /**
+     * Creates a non-mipmapped Allocation to use as a graphics texture from the
+     * {@link android.graphics.Bitmap} referenced by resource ID.
+     *
+     * <p>With target API version 18 or greater, this allocation will be created
+     * with {@link #USAGE_SCRIPT} and {@link #USAGE_GRAPHICS_TEXTURE}. With
+     * target API version 17 or lower, this allocation will be created with
+     * {@link #USAGE_GRAPHICS_TEXTURE}.</p>
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param res application resources
+     * @param id resource id to load the data from
+     *
+     * @return Allocation containing resource data
+     *
+     */
+    static public Allocation createFromBitmapResource(RenderScript rs,
+                                                      Resources res,
+                                                      int id) {
+        if (rs.getApplicationContext().getApplicationInfo().targetSdkVersion >= 18) {
+            return createFromBitmapResource(rs, res, id,
+                                            MipmapControl.MIPMAP_NONE,
+                                            USAGE_SCRIPT | USAGE_GRAPHICS_TEXTURE);
+        }
+        return createFromBitmapResource(rs, res, id,
+                                        MipmapControl.MIPMAP_NONE,
+                                        USAGE_GRAPHICS_TEXTURE);
+    }
+
+    /**
+     * Creates an Allocation containing string data encoded in UTF-8 format.
+     *
+     * @param rs Context to which the allocation will belong.
+     * @param str string to create the allocation from
+     * @param usage bit field specifying how the allocaiton is
+     *              utilized
+     *
+     */
+    static public Allocation createFromString(RenderScript rs,
+                                              String str,
+                                              int usage) {
+        rs.validate();
+        byte[] allocArray = null;
+        try {
+            allocArray = str.getBytes("UTF-8");
+            Allocation alloc = Allocation.createSized(rs, Element.U8(rs), allocArray.length, usage);
+            alloc.copyFrom(allocArray);
+            return alloc;
+        }
+        catch (Exception e) {
+            throw new RSRuntimeException("Could not convert string to utf-8.");
+        }
+    }
+
+    /**
+     * Interface to handle notification when new buffers are available via
+     * {@link #USAGE_IO_INPUT}. An application will receive one notification
+     * when a buffer is available. Additional buffers will not trigger new
+     * notifications until a buffer is processed.
+     */
+    public interface OnBufferAvailableListener {
+        public void onBufferAvailable(Allocation a);
+    }
+
+    /**
+     * Set a notification handler for {@link #USAGE_IO_INPUT}.
+     *
+     * @param callback instance of the OnBufferAvailableListener
+     *                 class to be called when buffer arrive.
+     */
+    public void setOnBufferAvailableListener(OnBufferAvailableListener callback) {
+        synchronized(mAllocationMap) {
+            mAllocationMap.put(new Long(getID(mRS)), this);
+            mBufferNotifier = callback;
+        }
+    }
+
+    static void sendBufferNotification(int id) {
+        synchronized(mAllocationMap) {
+            Allocation a = mAllocationMap.get(new Long(id));
+
+            if ((a != null) && (a.mBufferNotifier != null)) {
+                a.mBufferNotifier.onBufferAvailable(a);
+            }
+        }
+    }
+
+}
+