Android example source code file (Allocation.java)

This example Android source code file (Allocation.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

adapter1d, adapter2d, allocation, android, bad, baseobj, bitmap, content, drawing, element, graphics, illegalargumentexception, illegalstateexception, io, load, paint, renderscript, resources, type, typedvalue

The Allocation.java Android example source code

/*
 * Copyright (C) 2008 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 android.content.res.Resources;
import android.content.res.AssetManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Log;
import android.util.TypedValue;

/**
 * @hide
 *
 **/
public class Allocation extends BaseObj {
    Type mType;
    Bitmap mBitmap;

    Allocation(int id, RenderScript rs, Type t) {
        super(rs);
        mID = id;
        mType = t;
    }

    public Type getType() {
        return mType;
    }

    public void uploadToTexture(int baseMipLevel) {
        mRS.validate();
        mRS.nAllocationUploadToTexture(mID, false, baseMipLevel);
    }

    public void uploadToTexture(boolean genMips, int baseMipLevel) {
        mRS.validate();
        mRS.nAllocationUploadToTexture(mID, genMips, baseMipLevel);
    }

    public void uploadToBufferObject() {
        mRS.validate();
        mRS.nAllocationUploadToBufferObject(mID);
    }

    public void data(int[] d) {
        mRS.validate();
        subData1D(0, mType.getElementCount(), d);
    }
    public void data(short[] d) {
        mRS.validate();
        subData1D(0, mType.getElementCount(), d);
    }
    public void data(byte[] d) {
        mRS.validate();
        subData1D(0, mType.getElementCount(), d);
    }
    public void data(float[] d) {
        mRS.validate();
        subData1D(0, mType.getElementCount(), d);
    }

    private void data1DChecks(int off, int count, int len, int dataSize) {
        mRS.validate();
        if((off < 0) || (count < 1) || ((off + count) > mType.getElementCount())) {
            throw new IllegalArgumentException("Offset or Count out of bounds.");
        }
        if((len) < dataSize) {
            throw new IllegalArgumentException("Array too small for allocation type.");
        }
    }

    public void subData1D(int off, int count, int[] d) {
        int dataSize = mType.mElement.getSizeBytes() * count;
        data1DChecks(off, count, d.length * 4, dataSize);
        mRS.nAllocationSubData1D(mID, off, count, d, dataSize);
    }
    public void subData1D(int off, int count, short[] d) {
        int dataSize = mType.mElement.getSizeBytes() * count;
        data1DChecks(off, count, d.length * 2, dataSize);
        mRS.nAllocationSubData1D(mID, off, count, d, dataSize);
    }
    public void subData1D(int off, int count, byte[] d) {
        int dataSize = mType.mElement.getSizeBytes() * count;
        data1DChecks(off, count, d.length, dataSize);
        mRS.nAllocationSubData1D(mID, off, count, d, dataSize);
    }
    public void subData1D(int off, int count, float[] d) {
        int dataSize = mType.mElement.getSizeBytes() * count;
        data1DChecks(off, count, d.length * 4, dataSize);
        mRS.nAllocationSubData1D(mID, off, count, d, dataSize);
    }



    public void subData2D(int xoff, int yoff, int w, int h, int[] d) {
        mRS.validate();
        mRS.nAllocationSubData2D(mID, xoff, yoff, w, h, d, d.length * 4);
    }

    public void subData2D(int xoff, int yoff, int w, int h, float[] d) {
        mRS.validate();
        mRS.nAllocationSubData2D(mID, xoff, yoff, w, h, d, d.length * 4);
    }

    public void readData(int[] d) {
        mRS.validate();
        mRS.nAllocationRead(mID, d);
    }

    public void readData(float[] d) {
        mRS.validate();
        mRS.nAllocationRead(mID, d);
    }

    public void data(Object o) {
        mRS.validate();
        mRS.nAllocationSubDataFromObject(mID, mType, 0, o);
    }

    public void read(Object o) {
        mRS.validate();
        mRS.nAllocationSubReadFromObject(mID, mType, 0, o);
    }

    public void subData(int offset, Object o) {
        mRS.validate();
        mRS.nAllocationSubDataFromObject(mID, mType, offset, o);
    }

    public class Adapter1D extends BaseObj {
        Adapter1D(int id, RenderScript rs) {
            super(rs);
            mID = id;
        }

        public void setConstraint(Dimension dim, int value) {
            mRS.validate();
            mRS.nAdapter1DSetConstraint(mID, dim.mID, value);
        }

        public void data(int[] d) {
            mRS.validate();
            mRS.nAdapter1DData(mID, d);
        }

        public void data(float[] d) {
            mRS.validate();
            mRS.nAdapter1DData(mID, d);
        }

        public void subData(int off, int count, int[] d) {
            mRS.validate();
            mRS.nAdapter1DSubData(mID, off, count, d);
        }

        public void subData(int off, int count, float[] d) {
            mRS.validate();
            mRS.nAdapter1DSubData(mID, off, count, d);
        }
    }

    public Adapter1D createAdapter1D() {
        mRS.validate();
        int id = mRS.nAdapter1DCreate();
        if(id == 0) {
            throw new IllegalStateException("allocation failed.");
        }
        mRS.nAdapter1DBindAllocation(id, mID);
        return new Adapter1D(id, mRS);
    }


    public class Adapter2D extends BaseObj {
        Adapter2D(int id, RenderScript rs) {
            super(rs);
            mID = id;
        }

        public void setConstraint(Dimension dim, int value) {
            mRS.validate();
            mRS.nAdapter2DSetConstraint(mID, dim.mID, value);
        }

        public void data(int[] d) {
            mRS.validate();
            mRS.nAdapter2DData(mID, d);
        }

        public void data(float[] d) {
            mRS.validate();
            mRS.nAdapter2DData(mID, d);
        }

        public void subData(int xoff, int yoff, int w, int h, int[] d) {
            mRS.validate();
            mRS.nAdapter2DSubData(mID, xoff, yoff, w, h, d);
        }

        public void subData(int xoff, int yoff, int w, int h, float[] d) {
            mRS.validate();
            mRS.nAdapter2DSubData(mID, xoff, yoff, w, h, d);
        }
    }

    public Adapter2D createAdapter2D() {
        mRS.validate();
        int id = mRS.nAdapter2DCreate();
        if(id == 0) {
            throw new IllegalStateException("allocation failed.");
        }
        mRS.nAdapter2DBindAllocation(id, mID);
        return new Adapter2D(id, mRS);
    }


    // creation

    private static BitmapFactory.Options mBitmapOptions = new BitmapFactory.Options();
    static {
        mBitmapOptions.inScaled = false;
    }

    static public Allocation createTyped(RenderScript rs, Type type)
        throws IllegalArgumentException {

        rs.validate();
        if(type.mID == 0) {
            throw new IllegalStateException("Bad Type");
        }
        int id = rs.nAllocationCreateTyped(type.mID);
        return new Allocation(id, rs, type);
    }

    static public Allocation createSized(RenderScript rs, Element e, int count)
        throws IllegalArgumentException {

        rs.validate();
        Type.Builder b = new Type.Builder(rs, e);
        b.add(Dimension.X, count);
        Type t = b.create();

        int id = rs.nAllocationCreateTyped(t.mID);
        if(id == 0) {
            throw new IllegalStateException("Bad element.");
        }
        return new Allocation(id, rs, t);
    }

    static private 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 IllegalStateException("Bad bitmap type.");
    }

    static private Type typeFromBitmap(RenderScript rs, Bitmap b) {
        Element e = elementFromBitmap(rs, b);
        Type.Builder tb = new Type.Builder(rs, e);
        tb.add(Dimension.X, b.getWidth());
        tb.add(Dimension.Y, b.getHeight());
        return tb.create();
    }

    static public Allocation createFromBitmap(RenderScript rs, Bitmap b, Element dstFmt, boolean genMips)
        throws IllegalArgumentException {

        rs.validate();
        Type t = typeFromBitmap(rs, b);

        int id = rs.nAllocationCreateFromBitmap(dstFmt.mID, genMips, b);
        if(id == 0) {
            throw new IllegalStateException("Load failed.");
        }
        return new Allocation(id, rs, t);
    }

    static public Allocation createBitmapRef(RenderScript rs, Bitmap b)
        throws IllegalArgumentException {

        rs.validate();
        Type t = typeFromBitmap(rs, b);

        int id = rs.nAllocationCreateBitmapRef(t.getID(), b);
        if(id == 0) {
            throw new IllegalStateException("Load failed.");
        }

        Allocation a = new Allocation(id, rs, t);
        a.mBitmap = b;
        return a;
    }

    static Allocation createFromBitmapBoxed(RenderScript rs, Bitmap b, Element dstFmt, boolean genMips)
        throws IllegalArgumentException {

        rs.validate();
        int id = rs.nAllocationCreateFromBitmapBoxed(dstFmt.mID, genMips, b);
        if(id == 0) {
            throw new IllegalStateException("Load failed.");
        }
        return new Allocation(id, rs, null);
    }

    static public Allocation createFromBitmapResource(RenderScript rs, Resources res, int id, Element dstFmt, boolean genMips)
        throws IllegalArgumentException {

        rs.validate();
        InputStream is = null;
        try {
            final TypedValue value = new TypedValue();
            is = res.openRawResource(id, value);

            int asset = ((AssetManager.AssetInputStream) is).getAssetInt();
            int allocationId = rs.nAllocationCreateFromAssetStream(dstFmt.mID, genMips,
                    asset);

            if(allocationId == 0) {
                throw new IllegalStateException("Load failed.");
            }
            return new Allocation(allocationId, rs, null);
        } catch (Exception e) {
            // Ignore
        } finally {
            if (is != null) {
                try {
                    is.close();
                } catch (IOException e) {
                    // Ignore
                }
            }
        }

        return null;
    }

    static public Allocation createFromBitmapResourceBoxed(RenderScript rs, Resources res, int id, Element dstFmt, boolean genMips)
        throws IllegalArgumentException {

        Bitmap b = BitmapFactory.decodeResource(res, id, mBitmapOptions);
        return createFromBitmapBoxed(rs, b, dstFmt, genMips);
    }
}