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 com.google.zxing.BinaryBitmap;
20 import com.google.zxing.MultiFormatReader;
21 import com.google.zxing.ReaderException;
22 import com.google.zxing.Result;
23 import com.google.zxing.common.HybridBinarizer;
25 import android.os.Debug;
26 import android.os.Message;
27 import android.util.Log;
30 import java.io.FileNotFoundException;
31 import java.util.ArrayList;
32 import java.util.Arrays;
33 import java.util.List;
35 final class BenchmarkThread extends Thread {
37 private static final String TAG = "BenchmarkThread";
38 private static final int RUNS = 10;
40 private final BenchmarkActivity mActivity;
41 private final String mPath;
42 private MultiFormatReader mMultiFormatReader;
44 BenchmarkThread(BenchmarkActivity activity, String path) {
51 mMultiFormatReader = new MultiFormatReader();
52 mMultiFormatReader.setHints(null);
53 // Try to get in a known state before starting the benchmark
56 List<BenchmarkItem> items = new ArrayList<BenchmarkItem>();
57 walkTree(mPath, items);
58 Message message = Message.obtain(mActivity.mHandler, R.id.benchmark_done);
60 message.sendToTarget();
63 // Recurse to allow subdirectories
64 private void walkTree(String path, List<BenchmarkItem> items) {
65 File file = new File(path);
66 if (file.isDirectory()) {
67 String[] files = file.list();
69 for (int x = 0; x < files.length; x++) {
70 walkTree(file.getAbsolutePath() + '/' + files[x], items);
73 BenchmarkItem item = decode(path);
80 private BenchmarkItem decode(String path) {
81 RGBLuminanceSource source;
83 source = new RGBLuminanceSource(path);
84 } catch (FileNotFoundException e) {
85 Log.e(TAG, e.toString());
89 BenchmarkItem item = new BenchmarkItem(path, RUNS);
90 for (int x = 0; x < RUNS; x++) {
93 // Using this call instead of getting the time should eliminate a lot of variability due to
94 // scheduling and what else is happening in the system.
95 long now = Debug.threadCpuTimeNanos();
97 BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
98 result = mMultiFormatReader.decodeWithState(bitmap);
100 } catch (ReaderException e) {
103 now = Debug.threadCpuTimeNanos() - now;
105 item.setDecoded(success);
106 item.setFormat(result != null ? result.getBarcodeFormat() : null);
108 item.addResult((int) (now / 1000));