1 /*
2  * Copyright (C) 2013 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.example.android.rs.hellocomputendk;
18 
19 import android.app.Activity;
20 import android.os.Bundle;
21 import android.graphics.BitmapFactory;
22 import android.graphics.Bitmap;
23 import android.widget.ImageView;
24 
25 public class HelloComputeNDK extends Activity {
26     private Bitmap mBitmapIn;
27     private Bitmap mBitmapOut;
28 
29     static {
30         System.loadLibrary("hellocomputendk");
31     }
32 
nativeMono(String cacheDir, int X, int Y, Bitmap in, Bitmap out)33     native void nativeMono(String cacheDir, int X, int Y, Bitmap in, Bitmap out);
34 
35     @Override
onCreate(Bundle savedInstanceState)36     protected void onCreate(Bundle savedInstanceState) {
37         super.onCreate(savedInstanceState);
38         setContentView(R.layout.main);
39 
40         mBitmapIn = loadBitmap(R.drawable.data);
41         mBitmapOut = Bitmap.createBitmap(mBitmapIn.getWidth(), mBitmapIn.getHeight(),
42                                          mBitmapIn.getConfig());
43 
44         ImageView in = (ImageView) findViewById(R.id.displayin);
45         in.setImageBitmap(mBitmapIn);
46 
47         ImageView out = (ImageView) findViewById(R.id.displayout);
48         out.setImageBitmap(mBitmapOut);
49 
50         nativeMono(this.getCacheDir().toString(),
51                    mBitmapIn.getWidth(), mBitmapIn.getHeight(),
52                    mBitmapIn, mBitmapOut);
53 
54     }
55 
loadBitmap(int resource)56     private Bitmap loadBitmap(int resource) {
57         final BitmapFactory.Options options = new BitmapFactory.Options();
58         options.inPreferredConfig = Bitmap.Config.ARGB_8888;
59         return BitmapFactory.decodeResource(getResources(), resource, options);
60     }
61 }
62