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f5b95a6716
Upstream has released updates that appear to apply and compile correctly Paper Changes: PaperMC/Paper@b0da38c2 Repository details in RuntimeException for MavenLibraryResolver#addRepository (#12939) PaperMC/Paper@1922be90 Update custom tags (#12183) PaperMC/Paper@79cf1353 Ignore HopperInventorySearchEvent when it has no listeners (#13009) PaperMC/Paper@ea014f7a feat: add stuckEntityPoiRetryDelay config (#12949) PaperMC/Paper@a9e76749 Support for showNotification in PlayerRecipeDiscoverEvent (#12992) PaperMC/Paper@5622c9dd Expose attribute sentiment (#12974) PaperMC/Paper@42b653b1 Expose more argument types (#12665) PaperMC/Paper@52d9a221 [ci/skip] Fix typo in Display javadoc (#13010) PaperMC/Paper@614e9acf Improve APIs around riptide tridents (#12996) PaperMC/Paper@51706e5a Fixed DyeItem sheep dye hunk
88 lines
3.2 KiB
Diff
88 lines
3.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Taiyou06 <kaandindar21@gmail.com>
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Date: Mon, 24 Feb 2025 21:11:09 +0100
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Subject: [PATCH] Slightly optimized VarInt#write
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Use switch case instead of if-else for branches. It makes it able to use
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tableswitch instruction for better efficiency.
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Improves it around 1% to 5%
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diff --git a/net/minecraft/network/VarInt.java b/net/minecraft/network/VarInt.java
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index 6f8dd31582f0e1d3a71acc7a142c1f4ec0539d9e..4c9095995e8515c61d54f1c056be35a12a138ef3 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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@@ -52,35 +52,44 @@ public class VarInt {
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public static ByteBuf write(ByteBuf buffer, int value) {
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// Gale start - Velocity - optimized VarInt#write
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- if ((value & 0xFFFFFF80) == 0) {
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- buffer.writeByte(value);
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- } else if ((value & 0xFFFFC000) == 0) {
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- int w = (value & 0x7F) << 8
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- | (value >>> 7)
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- | 0x00008000;
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- buffer.writeShort(w);
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- } else if ((value & 0xFFE00000) == 0) {
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- int w = (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(w);
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- } else if ((value & 0xF0000000) == 0) {
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- int w = (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(w);
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- } else {
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- int w = (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(w);
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- buffer.writeByte(value >>> 28);
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+ // Leaf start - Slightly optimized 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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+ // Leaf end - Slightly optimized VarInt#write
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+
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return buffer;
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}
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