1 /*
2 * Copyright (C) 2016 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.android.rs.waitattachnodebug;
18 
19 import android.app.Activity;
20 import android.graphics.Bitmap;
21 import android.os.Bundle;
22 import android.widget.ImageView;
23 import android.renderscript.*;
24 
25 public class MainActivity extends Activity {
26     private Bitmap mBitmapIn;
27     private Bitmap mBitmapOut;
28     private ImageView mImageView;
29 
30     private RenderScript mRS;
31     private Allocation mInAllocation;
32     private Allocation mOutAllocation;
33     private ScriptC_simple mScript;
34 
35     @Override
onCreate(Bundle savedInstanceState)36     protected void onCreate(Bundle savedInstanceState) {
37         super.onCreate(savedInstanceState);
38 
39         setContentView(R.layout.main_layout);
40 
41         mBitmapIn = Bitmap.createBitmap(8, 8, Bitmap.Config.ARGB_8888);
42         mBitmapOut = Bitmap.createBitmap(mBitmapIn.getWidth(),
43                     mBitmapIn.getHeight(), mBitmapIn.getConfig());
44 
45         mImageView = findViewById(R.id.imageView);
46         mImageView.setImageBitmap(mBitmapOut);
47 
48         createScript();
49         updateImage(1.0f);
50     }
51 
createScript()52     private void createScript() {
53         mRS = RenderScript.create(this,
54             RenderScript.ContextType.NORMAL,
55             RenderScript.CREATE_FLAG_LOW_LATENCY |
56             RenderScript.CREATE_FLAG_WAIT_FOR_ATTACH);
57 
58         mInAllocation = Allocation.createFromBitmap(mRS, mBitmapIn);
59         mOutAllocation = Allocation.createFromBitmap(mRS, mBitmapOut);
60 
61         mScript = new ScriptC_simple(mRS);
62     }
63 
64 
updateImage(final float f)65     private void updateImage(final float f) {
66         mScript.set_gColor(new Float4(0.9f, 0.8f, 0.5f, 1.0f));
67         mScript.forEach_simple_kernel(mInAllocation, mOutAllocation);
68         mOutAllocation.copyTo(mBitmapOut);
69     }
70 }
71 
72