Initial commit

sources/com/google/zxing/maxicode/decoder/Decoder.java

@@ -0,0 +1,59 @@
+package com.google.zxing.maxicode.decoder;
+
+import com.google.zxing.ChecksumException;
+import com.google.zxing.DecodeHintType;
+import com.google.zxing.FormatException;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.common.DecoderResult;
+import com.google.zxing.common.reedsolomon.GenericGF;
+import com.google.zxing.common.reedsolomon.ReedSolomonDecoder;
+import com.google.zxing.common.reedsolomon.ReedSolomonException;
+import java.util.Map;
+
+/* loaded from: classes.dex */
+public final class Decoder {
+    private final ReedSolomonDecoder a = new ReedSolomonDecoder(GenericGF.o);
+
+    public DecoderResult a(BitMatrix bitMatrix, Map<DecodeHintType, ?> map) throws FormatException, ChecksumException {
+        byte[] bArr;
+        byte[] a = new BitMatrixParser(bitMatrix).a();
+        a(a, 0, 10, 10, 0);
+        int i = a[0] & 15;
+        if (i == 2 || i == 3 || i == 4) {
+            a(a, 20, 84, 40, 1);
+            a(a, 20, 84, 40, 2);
+            bArr = new byte[94];
+        } else {
+            if (i != 5) {
+                throw FormatException.getFormatInstance();
+            }
+            a(a, 20, 68, 56, 1);
+            a(a, 20, 68, 56, 2);
+            bArr = new byte[78];
+        }
+        System.arraycopy(a, 0, bArr, 0, 10);
+        System.arraycopy(a, 20, bArr, 10, bArr.length - 10);
+        return DecodedBitStreamParser.a(bArr, i);
+    }
+
+    private void a(byte[] bArr, int i, int i2, int i3, int i4) throws ChecksumException {
+        int i5 = i2 + i3;
+        int i6 = i4 == 0 ? 1 : 2;
+        int[] iArr = new int[i5 / i6];
+        for (int i7 = 0; i7 < i5; i7++) {
+            if (i4 == 0 || i7 % 2 == i4 - 1) {
+                iArr[i7 / i6] = bArr[i7 + i] & 255;
+            }
+        }
+        try {
+            this.a.a(iArr, i3 / i6);
+            for (int i8 = 0; i8 < i2; i8++) {
+                if (i4 == 0 || i8 % 2 == i4 - 1) {
+                    bArr[i8 + i] = (byte) iArr[i8 / i6];
+                }
+            }
+        } catch (ReedSolomonException unused) {
+            throw ChecksumException.getChecksumInstance();
+        }
+    }
+}