2 * Copyright (C) 2008 ZXing authors
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package com.google.zxing.client.androidtest;
19 import android.os.Debug;
20 import android.os.Message;
21 import android.util.Log;
22 import com.google.zxing.MultiFormatReader;
23 import com.google.zxing.ReaderException;
24 import com.google.zxing.Result;
27 import java.io.FileNotFoundException;
28 import java.util.Arrays;
29 import java.util.ArrayList;
30 import java.util.List;
32 final class BenchmarkThread extends Thread {
34 private static final String TAG = "BenchmarkThread";
35 private static final int RUNS = 10;
37 private final BenchmarkActivity mActivity;
38 private final String mPath;
39 private MultiFormatReader mMultiFormatReader;
41 BenchmarkThread(BenchmarkActivity activity, String path) {
48 mMultiFormatReader = new MultiFormatReader();
49 mMultiFormatReader.setHints(null);
50 // Try to get in a known state before starting the benchmark
53 List<BenchmarkItem> items = new ArrayList<BenchmarkItem>();
54 walkTree(mPath, items);
55 Message message = Message.obtain(mActivity.mHandler, R.id.benchmark_done);
57 message.sendToTarget();
60 // Recurse to allow subdirectories
61 private void walkTree(String path, List<BenchmarkItem> items) {
62 File file = new File(path);
63 if (file.isDirectory()) {
64 String[] files = file.list();
66 for (int x = 0; x < files.length; x++) {
67 walkTree(file.getAbsolutePath() + '/' + files[x], items);
70 BenchmarkItem item = decode(path);
77 private BenchmarkItem decode(String path) {
78 RGBMonochromeBitmapSource source;
80 source = new RGBMonochromeBitmapSource(path);
81 } catch (FileNotFoundException e) {
82 Log.e(TAG, e.toString());
86 BenchmarkItem item = new BenchmarkItem(path, RUNS);
87 for (int x = 0; x < RUNS; x++) {
90 // Using this call instead of getting the time should eliminate a lot of variability due to
91 // scheduling and what else is happening in the system.
92 long now = Debug.threadCpuTimeNanos();
94 result = mMultiFormatReader.decodeWithState(source);
96 } catch (ReaderException e) {
99 now = Debug.threadCpuTimeNanos() - now;
101 item.setDecoded(success);
102 item.setFormat(result != null ? result.getBarcodeFormat() : null);
104 item.addResult((int) (now / 1000));