49 lines
1.7 KiB
Java
49 lines
1.7 KiB
Java
package com.google.zxing.common.reedsolomon;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.List;
|
|
|
|
/* loaded from: classes.dex */
|
|
public final class ReedSolomonEncoder {
|
|
private final GenericGF a;
|
|
private final List<GenericGFPoly> b = new ArrayList();
|
|
|
|
public ReedSolomonEncoder(GenericGF genericGF) {
|
|
this.a = genericGF;
|
|
this.b.add(new GenericGFPoly(genericGF, new int[]{1}));
|
|
}
|
|
|
|
private GenericGFPoly a(int i) {
|
|
if (i >= this.b.size()) {
|
|
List<GenericGFPoly> list = this.b;
|
|
GenericGFPoly genericGFPoly = list.get(list.size() - 1);
|
|
for (int size = this.b.size(); size <= i; size++) {
|
|
GenericGF genericGF = this.a;
|
|
genericGFPoly = genericGFPoly.c(new GenericGFPoly(genericGF, new int[]{1, genericGF.a((size - 1) + genericGF.a())}));
|
|
this.b.add(genericGFPoly);
|
|
}
|
|
}
|
|
return this.b.get(i);
|
|
}
|
|
|
|
public void a(int[] iArr, int i) {
|
|
if (i != 0) {
|
|
int length = iArr.length - i;
|
|
if (length > 0) {
|
|
GenericGFPoly a = a(i);
|
|
int[] iArr2 = new int[length];
|
|
System.arraycopy(iArr, 0, iArr2, 0, length);
|
|
int[] a2 = new GenericGFPoly(this.a, iArr2).a(i, 1).b(a)[1].a();
|
|
int length2 = i - a2.length;
|
|
for (int i2 = 0; i2 < length2; i2++) {
|
|
iArr[length + i2] = 0;
|
|
}
|
|
System.arraycopy(a2, 0, iArr, length + length2, a2.length);
|
|
return;
|
|
}
|
|
throw new IllegalArgumentException("No data bytes provided");
|
|
}
|
|
throw new IllegalArgumentException("No error correction bytes");
|
|
}
|
|
}
|