PaperMC/patches/server/0898-Optimize-VarInts.patch
Bjarne Koll d1a72eac31
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11405)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
1fc1020a PR-1049: Add MenuType API
8ae2e3be PR-1055: Expand riptiding API
cac68bfb SPIGOT-7890: AttributeModifier#getUniqueId() doesn't match the UUID passed to its constructor
7004fcf2 SPIGOT-7886: Fix mistake in AttributeModifier UUID shim
1ac7f950 PR-1054: Add FireworkMeta#hasPower
4cfb565f SPIGOT-7873: Add powered state for skulls

CraftBukkit Changes:
bbb30e7a8 SPIGOT-7894: NPE when sending tile entity update
ba21e9472 SPIGOT-7895: PlayerItemBreakEvent not firing
0fb24bbe0 SPIGOT-7875: Fix PlayerItemConsumeEvent cancellation causing client-side desync
815066449 SPIGOT-7891: Can't remove second ingredient of MerchantRecipe
45c206f2c PR-1458: Add MenuType API
19c8ef9ae SPIGOT-7867: Merchant instanceof AbstractVillager always returns false
4e006d28f PR-1468: Expand riptiding API
bd8aded7d Ignore checks in CraftPlayerProfile for ResolvableProfile used in profile components
8679620b5 SPIGOT-7889: Fix tool component deserialisation without speed and/or correct-for-drops
8d5222691 SPIGOT-7882, PR-1467: Fix conversion of name in Profile Component to empty if it is missing
63f91669a SPIGOT-7887: Remove duplicate ProjectileHitEvent for fireballs
7070de8c8 SPIGOT-7878: Server#getLootTable does not return null on invalid loot table
060ee6cae SPIGOT-7876: Can't kick player or disconnect player in PlayerLoginEvent when checking for cookies
7ccb86cc0 PR-1465: Add FireworkMeta#hasPower
804ad6491 SPIGOT-7873: Add powered state for skulls
f9610cdcb Improve minecart movement

Spigot Changes:
a759b629 Rebuild patches

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
2024-09-15 21:39:53 +02:00

52 lines
2.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: astei <andrew@steinborn.me>
Date: Sat, 28 Oct 2023 19:46:21 -0400
Subject: [PATCH] Optimize VarInts
https://github.com/PaperMC/Paper/pull/6957#issuecomment-985250854
diff --git a/src/main/java/net/minecraft/network/VarInt.java b/src/main/java/net/minecraft/network/VarInt.java
index 49a8ddc269d53458cfbd639b7de838c2e5765748..74ed47659d3e615c2dae7da98d5a8cf1559625bf 100644
--- a/src/main/java/net/minecraft/network/VarInt.java
+++ b/src/main/java/net/minecraft/network/VarInt.java
@@ -9,6 +9,18 @@ public class VarInt {
private static final int DATA_BITS_PER_BYTE = 7;
public static int getByteSize(int i) {
+ // Paper start - Optimize VarInts
+ return VARINT_EXACT_BYTE_LENGTHS[Integer.numberOfLeadingZeros(i)];
+ }
+ private static final int[] VARINT_EXACT_BYTE_LENGTHS = new int[33];
+ static {
+ for (int i = 0; i <= 32; ++i) {
+ VARINT_EXACT_BYTE_LENGTHS[i] = (int) Math.ceil((31d - (i - 1)) / 7d);
+ }
+ VARINT_EXACT_BYTE_LENGTHS[32] = 1; // Special case for the number 0.
+ }
+ public static int getByteSizeOld(int i) {
+ // Paper end - Optimize VarInts
for (int j = 1; j < 5; j++) {
if ((i & -1 << j * 7) == 0) {
return j;
@@ -39,6 +51,21 @@ public class VarInt {
}
public static ByteBuf write(ByteBuf buf, int i) {
+ // Paper start - Optimize VarInts
+ // Peel the one and two byte count cases explicitly as they are the most common VarInt sizes
+ // that the proxy will write, to improve inlining.
+ if ((i & (0xFFFFFFFF << 7)) == 0) {
+ buf.writeByte(i);
+ } else if ((i & (0xFFFFFFFF << 14)) == 0) {
+ int w = (i & 0x7F | 0x80) << 8 | (i >>> 7);
+ buf.writeShort(w);
+ } else {
+ writeOld(buf, i);
+ }
+ return buf;
+ }
+ public static ByteBuf writeOld(ByteBuf buf, int i) {
+ // Paper end - Optimize VarInts
while ((i & -128) != 0) {
buf.writeByte(i & 127 | 128);
i >>>= 7;