Rabbit-R1/switch port/java/sources/com/google/zxing/qrcode/QRCodeReader.java
2024-05-21 17:08:36 -04:00

150 lines
5.7 KiB
Java

package com.google.zxing.qrcode;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.ChecksumException;
import com.google.zxing.DecodeHintType;
import com.google.zxing.FormatException;
import com.google.zxing.NotFoundException;
import com.google.zxing.Reader;
import com.google.zxing.Result;
import com.google.zxing.ResultMetadataType;
import com.google.zxing.ResultPoint;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.DecoderResult;
import com.google.zxing.common.DetectorResult;
import com.google.zxing.qrcode.decoder.Decoder;
import com.google.zxing.qrcode.decoder.QRCodeDecoderMetaData;
import com.google.zxing.qrcode.detector.Detector;
import java.util.List;
import java.util.Map;
/* loaded from: classes3.dex */
public class QRCodeReader implements Reader {
private static final ResultPoint[] NO_POINTS = new ResultPoint[0];
private final Decoder decoder = new Decoder();
/* JADX INFO: Access modifiers changed from: protected */
public final Decoder getDecoder() {
return this.decoder;
}
@Override // com.google.zxing.Reader
public void reset() {
}
@Override // com.google.zxing.Reader
public Result decode(BinaryBitmap binaryBitmap) throws NotFoundException, ChecksumException, FormatException {
return decode(binaryBitmap, null);
}
@Override // com.google.zxing.Reader
public final Result decode(BinaryBitmap binaryBitmap, Map<DecodeHintType, ?> map) throws NotFoundException, ChecksumException, FormatException {
DecoderResult decode;
ResultPoint[] points;
if (map != null && map.containsKey(DecodeHintType.PURE_BARCODE)) {
decode = this.decoder.decode(extractPureBits(binaryBitmap.getBlackMatrix()), map);
points = NO_POINTS;
} else {
DetectorResult detect = new Detector(binaryBitmap.getBlackMatrix()).detect(map);
decode = this.decoder.decode(detect.getBits(), map);
points = detect.getPoints();
}
if (decode.getOther() instanceof QRCodeDecoderMetaData) {
((QRCodeDecoderMetaData) decode.getOther()).applyMirroredCorrection(points);
}
Result result = new Result(decode.getText(), decode.getRawBytes(), points, BarcodeFormat.QR_CODE);
List<byte[]> byteSegments = decode.getByteSegments();
if (byteSegments != null) {
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, byteSegments);
}
String eCLevel = decode.getECLevel();
if (eCLevel != null) {
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, eCLevel);
}
if (decode.hasStructuredAppend()) {
result.putMetadata(ResultMetadataType.STRUCTURED_APPEND_SEQUENCE, Integer.valueOf(decode.getStructuredAppendSequenceNumber()));
result.putMetadata(ResultMetadataType.STRUCTURED_APPEND_PARITY, Integer.valueOf(decode.getStructuredAppendParity()));
}
return result;
}
private static BitMatrix extractPureBits(BitMatrix bitMatrix) throws NotFoundException {
int[] topLeftOnBit = bitMatrix.getTopLeftOnBit();
int[] bottomRightOnBit = bitMatrix.getBottomRightOnBit();
if (topLeftOnBit == null || bottomRightOnBit == null) {
throw NotFoundException.getNotFoundInstance();
}
float moduleSize = moduleSize(topLeftOnBit, bitMatrix);
int i = topLeftOnBit[1];
int i2 = bottomRightOnBit[1];
int i3 = topLeftOnBit[0];
int i4 = bottomRightOnBit[0];
if (i3 >= i4 || i >= i2) {
throw NotFoundException.getNotFoundInstance();
}
int i5 = i2 - i;
if (i5 != i4 - i3 && (i4 = i3 + i5) >= bitMatrix.getWidth()) {
throw NotFoundException.getNotFoundInstance();
}
int round = Math.round(((i4 - i3) + 1) / moduleSize);
int round2 = Math.round((i5 + 1) / moduleSize);
if (round <= 0 || round2 <= 0) {
throw NotFoundException.getNotFoundInstance();
}
if (round2 != round) {
throw NotFoundException.getNotFoundInstance();
}
int i6 = (int) (moduleSize / 2.0f);
int i7 = i + i6;
int i8 = i3 + i6;
int i9 = (((int) ((round - 1) * moduleSize)) + i8) - i4;
if (i9 > 0) {
if (i9 > i6) {
throw NotFoundException.getNotFoundInstance();
}
i8 -= i9;
}
int i10 = (((int) ((round2 - 1) * moduleSize)) + i7) - i2;
if (i10 > 0) {
if (i10 > i6) {
throw NotFoundException.getNotFoundInstance();
}
i7 -= i10;
}
BitMatrix bitMatrix2 = new BitMatrix(round, round2);
for (int i11 = 0; i11 < round2; i11++) {
int i12 = ((int) (i11 * moduleSize)) + i7;
for (int i13 = 0; i13 < round; i13++) {
if (bitMatrix.get(((int) (i13 * moduleSize)) + i8, i12)) {
bitMatrix2.set(i13, i11);
}
}
}
return bitMatrix2;
}
private static float moduleSize(int[] iArr, BitMatrix bitMatrix) throws NotFoundException {
int height = bitMatrix.getHeight();
int width = bitMatrix.getWidth();
int i = iArr[0];
boolean z = true;
int i2 = iArr[1];
int i3 = 0;
while (i < width && i2 < height) {
if (z != bitMatrix.get(i, i2)) {
i3++;
if (i3 == 5) {
break;
}
z = !z;
}
i++;
i2++;
}
if (i == width || i2 == height) {
throw NotFoundException.getNotFoundInstance();
}
return (i - iArr[0]) / 7.0f;
}
}