mirror of
https://github.com/BX-Team/DivineMC.git
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69 lines
2.6 KiB
Diff
69 lines
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
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Date: Wed, 9 Jul 2025 02:08:35 +0300
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Subject: [PATCH] Use switch for VarInt#write
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diff --git a/net/minecraft/network/VarInt.java b/net/minecraft/network/VarInt.java
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index 4897ff4648083ebe737ae5b32bae344af27357e4..dddabc57f5415077b905cb59c5b47db1a621807f 100644
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--- a/net/minecraft/network/VarInt.java
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+++ b/net/minecraft/network/VarInt.java
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@@ -51,21 +51,46 @@ public class VarInt {
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}
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public static ByteBuf write(ByteBuf buffer, int value) {
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- // Paper start - Optimize VarInts
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- // Peel the one and two byte count cases explicitly as they are the most common VarInt sizes
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- // that the proxy will write, to improve inlining.
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- if ((value & (0xFFFFFFFF << 7)) == 0) {
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- buffer.writeByte(value);
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- } else if ((value & (0xFFFFFFFF << 14)) == 0) {
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- int w = (value & 0x7F | 0x80) << 8 | (value >>> 7);
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- buffer.writeShort(w);
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- } else {
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- writeOld(buffer, value);
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+ // DivineMC start - Use switch for VarInt#write
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+ int bytesNeeded = getByteSize(value);
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+
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+ switch (bytesNeeded) {
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+ case 1:
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+ buffer.writeByte(value);
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+ break;
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+ case 2:
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+ int w2 = ((value & 0x7F) << 8) | (value >>> 7) | 0x00008000;
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+ buffer.writeShort(w2);
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+ break;
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+ case 3:
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+ int w3 = (value & 0x7F) << 16
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+ | (value & 0x3F80) << 1
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+ | (value >>> 14)
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+ | 0x00808000;
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+ buffer.writeMedium(w3);
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+ break;
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+ case 4:
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+ int w4 = (value & 0x7F) << 24
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+ | ((value & 0x3F80) << 9)
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+ | (value & 0x1FC000) >> 6
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+ | (value >>> 21)
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+ | 0x80808000;
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+ buffer.writeInt(w4);
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+ break;
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+ case 5:
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+ int w5 = (value & 0x7F) << 24
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+ | (value & 0x3F80) << 9
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+ | (value & 0x1FC000) >> 6
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+ | ((value >>> 21) & 0x7F)
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+ | 0x80808080;
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+ buffer.writeInt(w5);
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+ buffer.writeByte(value >>> 28);
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+ break;
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}
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+ // DivineMC end - Use switch for VarInt#write
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return buffer;
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}
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public static ByteBuf writeOld(ByteBuf buffer, int value) {
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- // Paper end - Optimize VarInts
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while ((value & -128) != 0) {
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buffer.writeByte(value & 127 | 128);
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value >>>= 7;
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