tests/ndkRsHelloCompute/src/main/java/com/example/android/rs/hellocomputendk/HelloComputeNDK.java

/*
 * Copyright (C) 2013 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.example.android.rs.hellocomputendk;

import android.app.Activity;
import android.os.Bundle;
import android.graphics.BitmapFactory;
import android.graphics.Bitmap;
import android.widget.ImageView;

public class HelloComputeNDK extends Activity {
    private Bitmap mBitmapIn;
    private Bitmap mBitmapOut;

    static {
        System.loadLibrary("hellocomputendk");
    }

    native void nativeMono(int X, int Y, Bitmap in, Bitmap out);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mBitmapIn = loadBitmap(R.drawable.data);
        mBitmapOut = Bitmap.createBitmap(mBitmapIn.getWidth(), mBitmapIn.getHeight(),
                                         mBitmapIn.getConfig());

        ImageView in = (ImageView) findViewById(R.id.displayin);
        in.setImageBitmap(mBitmapIn);

        ImageView out = (ImageView) findViewById(R.id.displayout);
        out.setImageBitmap(mBitmapOut);

        nativeMono(mBitmapIn.getWidth(), mBitmapIn.getHeight(), mBitmapIn, mBitmapOut);

    }

    private Bitmap loadBitmap(int resource) {
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inPreferredConfig = Bitmap.Config.ARGB_8888;
        return BitmapFactory.decodeResource(getResources(), resource, options);
    }
}