268 lines
11 KiB
Java
268 lines
11 KiB
Java
package com.google.common.hash;
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import com.google.common.hash.AbstractStreamingHashFunction;
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import com.google.common.primitives.UnsignedBytes;
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import java.io.Serializable;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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/* loaded from: classes.dex */
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final class Murmur3_128HashFunction extends AbstractStreamingHashFunction implements Serializable {
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private final int a;
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Murmur3_128HashFunction(int i) {
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this.a = i;
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}
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@Override // com.google.common.hash.HashFunction
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public Hasher a() {
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return new Murmur3_128Hasher(this.a);
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}
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public boolean equals(Object obj) {
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return (obj instanceof Murmur3_128HashFunction) && this.a == ((Murmur3_128HashFunction) obj).a;
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}
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public int hashCode() {
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return Murmur3_128HashFunction.class.hashCode() ^ this.a;
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}
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public String toString() {
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return "Hashing.murmur3_128(" + this.a + ")";
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}
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private static final class Murmur3_128Hasher extends AbstractStreamingHashFunction.AbstractStreamingHasher {
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private long c;
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private long d;
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private int e;
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Murmur3_128Hasher(int i) {
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super(16);
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long j = i;
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this.c = j;
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this.d = j;
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this.e = 0;
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}
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private static long a(long j) {
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long j2 = (j ^ (j >>> 33)) * (-49064778989728563L);
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long j3 = (j2 ^ (j2 >>> 33)) * (-4265267296055464877L);
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return j3 ^ (j3 >>> 33);
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}
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private static long c(long j) {
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return Long.rotateLeft(j * 5545529020109919103L, 33) * (-8663945395140668459L);
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}
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@Override // com.google.common.hash.AbstractStreamingHashFunction.AbstractStreamingHasher
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protected void a(ByteBuffer byteBuffer) {
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a(byteBuffer.getLong(), byteBuffer.getLong());
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this.e += 16;
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}
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@Override // com.google.common.hash.AbstractStreamingHashFunction.AbstractStreamingHasher
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protected void b(ByteBuffer byteBuffer) {
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long j;
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long j2;
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long j3;
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long j4;
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long j5;
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long j6;
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long a;
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long j7;
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long j8;
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long j9;
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long j10;
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long j11;
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long j12;
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long j13;
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this.e += byteBuffer.remaining();
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switch (byteBuffer.remaining()) {
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case 1:
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j = 0;
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a = UnsignedBytes.a(byteBuffer.get(0)) ^ j;
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j7 = 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 2:
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j2 = 0;
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j = j2 ^ (UnsignedBytes.a(byteBuffer.get(1)) << 8);
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a = UnsignedBytes.a(byteBuffer.get(0)) ^ j;
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j7 = 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 3:
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j3 = 0;
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j2 = j3 ^ (UnsignedBytes.a(byteBuffer.get(2)) << 16);
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j = j2 ^ (UnsignedBytes.a(byteBuffer.get(1)) << 8);
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a = UnsignedBytes.a(byteBuffer.get(0)) ^ j;
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j7 = 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 4:
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j4 = 0;
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j3 = j4 ^ (UnsignedBytes.a(byteBuffer.get(3)) << 24);
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j2 = j3 ^ (UnsignedBytes.a(byteBuffer.get(2)) << 16);
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j = j2 ^ (UnsignedBytes.a(byteBuffer.get(1)) << 8);
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a = UnsignedBytes.a(byteBuffer.get(0)) ^ j;
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j7 = 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 5:
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j5 = 0;
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j4 = j5 ^ (UnsignedBytes.a(byteBuffer.get(4)) << 32);
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j3 = j4 ^ (UnsignedBytes.a(byteBuffer.get(3)) << 24);
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j2 = j3 ^ (UnsignedBytes.a(byteBuffer.get(2)) << 16);
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j = j2 ^ (UnsignedBytes.a(byteBuffer.get(1)) << 8);
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a = UnsignedBytes.a(byteBuffer.get(0)) ^ j;
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j7 = 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 6:
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j6 = 0;
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j5 = j6 ^ (UnsignedBytes.a(byteBuffer.get(5)) << 40);
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j4 = j5 ^ (UnsignedBytes.a(byteBuffer.get(4)) << 32);
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j3 = j4 ^ (UnsignedBytes.a(byteBuffer.get(3)) << 24);
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j2 = j3 ^ (UnsignedBytes.a(byteBuffer.get(2)) << 16);
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j = j2 ^ (UnsignedBytes.a(byteBuffer.get(1)) << 8);
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a = UnsignedBytes.a(byteBuffer.get(0)) ^ j;
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j7 = 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 7:
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j6 = (UnsignedBytes.a(byteBuffer.get(6)) << 48) ^ 0;
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j5 = j6 ^ (UnsignedBytes.a(byteBuffer.get(5)) << 40);
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j4 = j5 ^ (UnsignedBytes.a(byteBuffer.get(4)) << 32);
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j3 = j4 ^ (UnsignedBytes.a(byteBuffer.get(3)) << 24);
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j2 = j3 ^ (UnsignedBytes.a(byteBuffer.get(2)) << 16);
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j = j2 ^ (UnsignedBytes.a(byteBuffer.get(1)) << 8);
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a = UnsignedBytes.a(byteBuffer.get(0)) ^ j;
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j7 = 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 8:
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j7 = 0;
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a = byteBuffer.getLong() ^ 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 9:
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j8 = 0;
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j7 = j8 ^ UnsignedBytes.a(byteBuffer.get(8));
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a = byteBuffer.getLong() ^ 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 10:
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j9 = 0;
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j8 = j9 ^ (UnsignedBytes.a(byteBuffer.get(9)) << 8);
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j7 = j8 ^ UnsignedBytes.a(byteBuffer.get(8));
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a = byteBuffer.getLong() ^ 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 11:
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j10 = 0;
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j9 = j10 ^ (UnsignedBytes.a(byteBuffer.get(10)) << 16);
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j8 = j9 ^ (UnsignedBytes.a(byteBuffer.get(9)) << 8);
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j7 = j8 ^ UnsignedBytes.a(byteBuffer.get(8));
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a = byteBuffer.getLong() ^ 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 12:
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j11 = 0;
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j10 = j11 ^ (UnsignedBytes.a(byteBuffer.get(11)) << 24);
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j9 = j10 ^ (UnsignedBytes.a(byteBuffer.get(10)) << 16);
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j8 = j9 ^ (UnsignedBytes.a(byteBuffer.get(9)) << 8);
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j7 = j8 ^ UnsignedBytes.a(byteBuffer.get(8));
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a = byteBuffer.getLong() ^ 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 13:
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j12 = 0;
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j11 = j12 ^ (UnsignedBytes.a(byteBuffer.get(12)) << 32);
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j10 = j11 ^ (UnsignedBytes.a(byteBuffer.get(11)) << 24);
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j9 = j10 ^ (UnsignedBytes.a(byteBuffer.get(10)) << 16);
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j8 = j9 ^ (UnsignedBytes.a(byteBuffer.get(9)) << 8);
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j7 = j8 ^ UnsignedBytes.a(byteBuffer.get(8));
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a = byteBuffer.getLong() ^ 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 14:
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j13 = 0;
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j12 = j13 ^ (UnsignedBytes.a(byteBuffer.get(13)) << 40);
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j11 = j12 ^ (UnsignedBytes.a(byteBuffer.get(12)) << 32);
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j10 = j11 ^ (UnsignedBytes.a(byteBuffer.get(11)) << 24);
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j9 = j10 ^ (UnsignedBytes.a(byteBuffer.get(10)) << 16);
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j8 = j9 ^ (UnsignedBytes.a(byteBuffer.get(9)) << 8);
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j7 = j8 ^ UnsignedBytes.a(byteBuffer.get(8));
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a = byteBuffer.getLong() ^ 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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case 15:
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j13 = (UnsignedBytes.a(byteBuffer.get(14)) << 48) ^ 0;
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j12 = j13 ^ (UnsignedBytes.a(byteBuffer.get(13)) << 40);
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j11 = j12 ^ (UnsignedBytes.a(byteBuffer.get(12)) << 32);
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j10 = j11 ^ (UnsignedBytes.a(byteBuffer.get(11)) << 24);
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j9 = j10 ^ (UnsignedBytes.a(byteBuffer.get(10)) << 16);
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j8 = j9 ^ (UnsignedBytes.a(byteBuffer.get(9)) << 8);
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j7 = j8 ^ UnsignedBytes.a(byteBuffer.get(8));
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a = byteBuffer.getLong() ^ 0;
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this.c = b(a) ^ this.c;
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this.d = c(j7) ^ this.d;
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return;
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default:
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throw new AssertionError("Should never get here.");
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}
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}
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private void a(long j, long j2) {
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this.c = b(j) ^ this.c;
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this.c = Long.rotateLeft(this.c, 27);
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long j3 = this.c;
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long j4 = this.d;
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this.c = j3 + j4;
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this.c = (this.c * 5) + 1390208809;
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this.d = c(j2) ^ j4;
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this.d = Long.rotateLeft(this.d, 31);
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this.d += this.c;
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this.d = (this.d * 5) + 944331445;
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}
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@Override // com.google.common.hash.AbstractStreamingHashFunction.AbstractStreamingHasher
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public HashCode b() {
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long j = this.c;
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int i = this.e;
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this.c = j ^ i;
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this.d ^= i;
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long j2 = this.c;
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long j3 = this.d;
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this.c = j2 + j3;
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long j4 = this.c;
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this.d = j3 + j4;
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this.c = a(j4);
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this.d = a(this.d);
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long j5 = this.c;
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long j6 = this.d;
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this.c = j5 + j6;
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this.d = j6 + this.c;
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return HashCode.a(ByteBuffer.wrap(new byte[16]).order(ByteOrder.LITTLE_ENDIAN).putLong(this.c).putLong(this.d).array());
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}
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private static long b(long j) {
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return Long.rotateLeft(j * (-8663945395140668459L), 31) * 5545529020109919103L;
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}
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}
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}
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