mirror of
https://github.com/Pinball3D/Rabbit-R1.git
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67 lines
2.6 KiB
Java
67 lines
2.6 KiB
Java
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package com.google.zxing.maxicode.decoder;
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import com.google.common.base.Ascii;
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import com.google.zxing.ChecksumException;
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import com.google.zxing.DecodeHintType;
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import com.google.zxing.FormatException;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.common.DecoderResult;
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import com.google.zxing.common.reedsolomon.GenericGF;
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import com.google.zxing.common.reedsolomon.ReedSolomonDecoder;
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import com.google.zxing.common.reedsolomon.ReedSolomonException;
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import java.util.Map;
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/* loaded from: classes3.dex */
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public final class Decoder {
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private static final int ALL = 0;
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private static final int EVEN = 1;
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private static final int ODD = 2;
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private final ReedSolomonDecoder rsDecoder = new ReedSolomonDecoder(GenericGF.MAXICODE_FIELD_64);
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public DecoderResult decode(BitMatrix bitMatrix) throws ChecksumException, FormatException {
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return decode(bitMatrix, null);
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}
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public DecoderResult decode(BitMatrix bitMatrix, Map<DecodeHintType, ?> map) throws FormatException, ChecksumException {
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byte[] bArr;
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byte[] readCodewords = new BitMatrixParser(bitMatrix).readCodewords();
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correctErrors(readCodewords, 0, 10, 10, 0);
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int i = readCodewords[0] & Ascii.SI;
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if (i == 2 || i == 3 || i == 4) {
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correctErrors(readCodewords, 20, 84, 40, 1);
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correctErrors(readCodewords, 20, 84, 40, 2);
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bArr = new byte[94];
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} else if (i == 5) {
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correctErrors(readCodewords, 20, 68, 56, 1);
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correctErrors(readCodewords, 20, 68, 56, 2);
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bArr = new byte[78];
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} else {
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throw FormatException.getFormatInstance();
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}
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System.arraycopy(readCodewords, 0, bArr, 0, 10);
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System.arraycopy(readCodewords, 20, bArr, 10, bArr.length - 10);
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return DecodedBitStreamParser.decode(bArr, i);
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}
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private void correctErrors(byte[] bArr, int i, int i2, int i3, int i4) throws ChecksumException {
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int i5 = i2 + i3;
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int i6 = i4 == 0 ? 1 : 2;
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int[] iArr = new int[i5 / i6];
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for (int i7 = 0; i7 < i5; i7++) {
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if (i4 == 0 || i7 % 2 == i4 - 1) {
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iArr[i7 / i6] = bArr[i7 + i] & 255;
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}
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}
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try {
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this.rsDecoder.decode(iArr, i3 / i6);
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for (int i8 = 0; i8 < i2; i8++) {
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if (i4 == 0 || i8 % 2 == i4 - 1) {
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bArr[i8 + i] = (byte) iArr[i8 / i6];
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}
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}
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} catch (ReedSolomonException unused) {
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throw ChecksumException.getChecksumInstance();
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}
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}
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}
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