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Improvements to ChunkMap caching

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This commit is contained in:
Byteflux 2015-07-15 13:31:34 -07:00
parent 7562f087f8
commit b5666dd9e8
1 changed files with 73 additions and 34 deletions
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103
Spigot-Server-Patches/0065-ChunkMap-caching.patch
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@ -1,51 +1,89 @@
From 4d0cd6ef93096ca05ab8cb768574839fc2223abc Mon Sep 17 00:00:00 2001
From 5cf461979b07c8b31867b7e64c36fa6bc4a2e8fa Mon Sep 17 00:00:00 2001
From: Iceee <andrew@opticgaming.tv>
Date: Wed, 15 Jul 2015 02:41:12 -0700
Subject: [PATCH] ChunkMap caching
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index ab4de94..d528e91 100644
index ab4de94..2b70bf4 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -50,6 +50,29 @@ public class Chunk {
@@ -50,6 +50,39 @@ public class Chunk {
public long lightUpdateTime;
// PaperSpigot end
+ // PaperSpigot start - ChunkMap caching
+ private final Object chunkMapLock = new Object();
+ private PacketPlayOutMapChunk.ChunkMap chunkMap;
+ private boolean chunkMapDirty = true;
+
+ public void setDirty() {
+ synchronized (chunkMapLock) {
+ chunkMapDirty = true;
+ }
+ }
+ private int emptySectionBits;
+
+ public PacketPlayOutMapChunk.ChunkMap getChunkMap() {
+ synchronized (chunkMapLock) {
+ if (chunkMapDirty || chunkMap == null) {
+ chunkMapDirty = false;
+ boolean isDirty = false;
+ for (int i = 0; i < sections.length; ++i) {
+ ChunkSection section = sections[i];
+ if (section == null) {
+ if ((emptySectionBits & (1 << i)) == 0) {
+ isDirty = true;
+ emptySectionBits |= (1 << i);
+ }
+ } else {
+ if ((emptySectionBits & (1 << i)) == 1) {
+ isDirty = true;
+ emptySectionBits &= ~(1 << i);
+ section.isDirty = false;
+ } else if (section.isDirty) {
+ isDirty = true;
+ section.isDirty = false;
+ }
+ }
+ }
+
+ if (isDirty || chunkMap == null) {
+ chunkMap = PacketPlayOutMapChunk.a(this, true, !world.worldProvider.o(), '\uffff');
+ }
+
+ return chunkMap;
+ }
+ }
+ // PaperSpigot end
+
// CraftBukkit start - Neighbor loaded cache for chunk lighting and entity ticking
private int neighbors = 0x1 << 12;
@@ -507,6 +530,7 @@ public class Chunk {
diff --git a/src/main/java/net/minecraft/server/ChunkSection.java b/src/main/java/net/minecraft/server/ChunkSection.java
index f734ab0..907c57b 100644
--- a/src/main/java/net/minecraft/server/ChunkSection.java
+++ b/src/main/java/net/minecraft/server/ChunkSection.java
@@ -8,6 +8,7 @@ public class ChunkSection {
private char[] blockIds;
private NibbleArray emittedLight;
private NibbleArray skyLight;
+ boolean isDirty; // PaperSpigot
public ChunkSection(int i, boolean flag) {
this.yPos = i;
@@ -57,6 +58,7 @@ public class ChunkSection {
}
public IBlockData a(BlockPosition blockposition, IBlockData iblockdata) {
+ setDirty(); // PaperSpigot
int i = blockposition.getX() & 15;
int j = blockposition.getY();
int k = blockposition.getZ() & 15;
this.blockIds[j << 8 | k << 4 | i] = (char) Block.d.b(iblockdata);
+ isDirty = true; // PaperSpigot
}
public Block b(int i, int j, int k) {
@@ -83,6 +85,7 @@ public class ChunkSection {
public void a(int i, int j, int k, int l) {
this.skyLight.a(i, j, k, l);
+ isDirty = true; // PaperSpigot
}
public int d(int i, int j, int k) {
@@ -91,6 +94,7 @@ public class ChunkSection {
public void b(int i, int j, int k, int l) {
this.emittedLight.a(i, j, k, l);
+ isDirty = true; // PaperSpigot
}
public int e(int i, int j, int k) {
diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
index 58c0275..91ceb81 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
@ -59,18 +97,19 @@ index 58c0275..91ceb81 100644
chunk.world.spigotConfig.antiXrayInstance.obfuscateSync(chunk.locX, chunk.locZ, c.b, c.a, chunk.world);
}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 99473d1..5bb6ac1 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -2505,6 +2505,7 @@ public abstract class World implements IBlockAccess {
}
}
diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
index 10c0e34..f7e8ab3 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
@@ -23,7 +23,7 @@ public class PacketPlayOutMapChunkBulk implements Packet<PacketListenerPlayOut>
+ chunk.setDirty(); // PaperSpigot
// PaperSpigot start - Asynchronous light updates
if (chunk.world.paperSpigotConfig.useAsyncLighting) {
chunk.pendingLightUpdates.decrementAndGet();
for (int j = 0; j < i; ++j) {
Chunk chunk = (Chunk) list.get(j);
- PacketPlayOutMapChunk.ChunkMap packetplayoutmapchunk_chunkmap = PacketPlayOutMapChunk.a(chunk, true, this.d, '\uffff');
+ PacketPlayOutMapChunk.ChunkMap packetplayoutmapchunk_chunkmap = chunk.getChunkMap(); // PaperSpigot
this.a[j] = chunk.locX;
this.b[j] = chunk.locZ;
--
1.9.5.msysgit.1