/*
|
* Copyright (C) 2010 ZXing authors
|
*
|
* 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.videogo.scan.main;
|
|
import android.os.Bundle;
|
import android.os.Handler;
|
import android.os.Looper;
|
import android.os.Message;
|
|
import com.google.zxing.BinaryBitmap;
|
import com.google.zxing.DecodeHintType;
|
import com.google.zxing.MultiFormatReader;
|
import com.google.zxing.ReaderException;
|
import com.google.zxing.Result;
|
import com.google.zxing.common.HybridBinarizer;
|
import com.videogo.util.LogUtil;
|
|
import java.util.Map;
|
|
import ezviz.ezopensdk.R;
|
|
final class DecodeHandler extends Handler {
|
|
private static final String TAG = DecodeHandler.class.getSimpleName();
|
|
private final CaptureActivity activity;
|
private final MultiFormatReader multiFormatReader;
|
private boolean running = true;
|
|
DecodeHandler(CaptureActivity activity, Map<DecodeHintType,Object> hints) {
|
multiFormatReader = new MultiFormatReader();
|
multiFormatReader.setHints(hints);
|
this.activity = activity;
|
}
|
|
@Override
|
public void handleMessage(Message message) {
|
if (!running) {
|
return;
|
}
|
if (message.what==R.id.decode) {
|
decode((byte[]) message.obj, message.arg1, message.arg2);
|
}else if (message.what==R.id.quit) {
|
running = false;
|
Looper.myLooper().quit();
|
}else{
|
}
|
}
|
|
private void decode(byte[] data, int width, int height) {
|
long start = System.currentTimeMillis();
|
Result rawResult = null;
|
|
byte[] rotatedData = new byte[data.length];
|
for (int y = 0; y < height; y++) {
|
for (int x = 0; x < width; x++)
|
if ((x * height + height - y - 1) < data.length && (x + y * width) < data.length) {
|
rotatedData[x * height + height - y - 1] = data[x + y * width];
|
}
|
}
|
int tmp = width; // Here we are swapping, that's the difference to #11
|
width = height;
|
height = tmp;
|
|
data = rotatedData;
|
|
|
PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(data, width, height);
|
if (source != null) {
|
try {
|
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
|
rawResult = multiFormatReader.decodeWithState(bitmap);
|
} catch (OutOfMemoryError e) {
|
// TODO: handle exception
|
} catch (ReaderException re) {
|
// continue
|
} catch (Exception re) {
|
// continue
|
} finally {
|
multiFormatReader.reset();
|
}
|
}
|
|
Handler handler = activity.getHandler();
|
if (rawResult != null) {
|
// Don't log the barcode contents for security.
|
long end = System.currentTimeMillis();
|
LogUtil.d(TAG, "Found barcode in " + (end - start) + " ms");
|
if (handler != null) {
|
Message message = Message.obtain(handler, R.id.decode_succeeded, rawResult);
|
Bundle bundle = new Bundle();
|
bundle.putParcelable(DecodeThread.BARCODE_BITMAP, source.renderCroppedGreyscaleBitmap());
|
message.setData(bundle);
|
message.sendToTarget();
|
}
|
} else {
|
if (handler != null) {
|
Message message = Message.obtain(handler, R.id.decode_failed);
|
message.sendToTarget();
|
}
|
}
|
}
|
|
}
|