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Paper/Spigot-Server-Patches/0081-Optimize-isValidLocation-getType-and-getBlockData-fo.patch
Aikar 835bc39b03
Paper 1.13.1 Update 
Updated Upstream (Bukkit/CraftBukkit/Spigot)

Bukkit Changes:
2dcc44dc SPIGOT-4307: Fix hacky API for banners on shields
e0fc6572 SPIGOT-4309: Add "forced" display of particles
efeeab2f Add index to README.md for easier navigation
f502bc6f Update to Minecraft 1.13.1

CraftBukkit Changes:
d0bb0a1d Fix some tests randomly failing
997d378d Fix client stall in specific teleportation scenarios
b3dc2366 SPIGOT-4307: Fix hacky API for banners on shields
2a271162 SPIGOT-4301: Fix more invalid enchants
5d0d83bb SPIGOT-4309: Add "forced" display of particles
a6772578 Add additional tests for CraftBlockData
ce1af0c3 Update to Minecraft 1.13.1

Spigot Changes:
2440e189 Rebuild patches
4ecffced Update to Minecraft 1.13.1
2018-08-26 20:51:39 -04:00

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Raw Blame History

From fab7f2c8c325f68616b896713a552c7336180264 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 3 Mar 2016 02:07:55 -0600
Subject: [PATCH] Optimize isValidLocation, getType and getBlockData for inling
Hot methods, so reduce # of instructions for the method.
Move is valid location test to the BlockPosition class so that it can access local variables.
Replace all calls to the new place to the unnecessary forward.
Optimize getType and getBlockData to manually inline and optimize the calls
diff --git a/src/main/java/net/minecraft/server/BaseBlockPosition.java b/src/main/java/net/minecraft/server/BaseBlockPosition.java
index e2a7b4be2c..58f8b4b720 100644
--- a/src/main/java/net/minecraft/server/BaseBlockPosition.java
+++ b/src/main/java/net/minecraft/server/BaseBlockPosition.java
@@ -10,6 +10,14 @@ public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
private final int a;
private final int b;
private final int c;
+ // Paper start
+ public boolean isValidLocation() {
+ return a >= -30000000 && c >= -30000000 && a < 30000000 && c < 30000000 && b >= 0 && b < 256;
+ }
+ public boolean isInvalidYLocation() {
+ return b < 0 || b >= 256;
+ }
+ // Paper end
public BaseBlockPosition(int i, int j, int k) {
this.a = i;
diff --git a/src/main/java/net/minecraft/server/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java
index ca5c56c2b6..42e5e9ad8f 100644
--- a/src/main/java/net/minecraft/server/BlockPosition.java
+++ b/src/main/java/net/minecraft/server/BlockPosition.java
@@ -342,6 +342,16 @@ public class BlockPosition extends BaseBlockPosition {
protected int b;
protected int c;
protected int d;
+ // Paper start
+ @Override
+ public boolean isValidLocation() {
+ return b >= -30000000 && d >= -30000000 && b < 30000000 && d < 30000000 && c >= 0 && c < 256;
+ }
+ @Override
+ public boolean isInvalidYLocation() {
+ return c < 0 || c >= 256;
+ }
+ // Paper end
public MutableBlockPosition() {
this(0, 0, 0);
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index d86b925f0d..30dc4fb6df 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -427,12 +427,24 @@ public class Chunk implements IChunkAccess {
return this.getBlockData(i, j, k).b(this.world, new BlockPosition(i, j, k));
}
- public IBlockData getBlockData(BlockPosition blockposition) { return getType(blockposition); } // Paper
- public IBlockData getType(BlockPosition blockposition) {
+ // Paper start - Optimize getBlockData to reduce instructions
+ public final IBlockData getBlockData(BlockPosition pos) { return getBlockData(pos.getX(), pos.getY(), pos.getZ()); } // Paper
+ public final IBlockData getType(BlockPosition blockposition) {
return this.getBlockData(blockposition.getX(), blockposition.getY(), blockposition.getZ());
}
- public IBlockData getBlockData(int i, int j, int k) {
+ public final IBlockData getBlockData(final int x, final int y, final int z) {
+ // Method body / logic copied from below
+ final int i = y >> 4;
+ if (y >= 0 && i < this.sections.length && this.sections[i] != null) {
+ // Inlined ChunkSection.getType() and DataPaletteBlock.a(int,int,int)
+ return this.sections[i].blockIds.a((y & 15) << 8 | (z & 15) << 4 | x & 15);
+ }
+ return Blocks.AIR.getBlockData();
+ }
+
+ public IBlockData getBlockData_unused(int i, int j, int k) {
+ // Paper end
if (this.world.S() == WorldType.DEBUG_ALL_BLOCK_STATES) {
IBlockData iblockdata = null;
diff --git a/src/main/java/net/minecraft/server/ChunkSection.java b/src/main/java/net/minecraft/server/ChunkSection.java
index 35aea4829f..233cbb6d60 100644
--- a/src/main/java/net/minecraft/server/ChunkSection.java
+++ b/src/main/java/net/minecraft/server/ChunkSection.java
@@ -9,7 +9,7 @@ public class ChunkSection {
private int nonEmptyBlockCount;
private int tickingBlockCount;
private int e;
- private final DataPaletteBlock<IBlockData> blockIds;
+ final DataPaletteBlock<IBlockData> blockIds; // Paper - package
private NibbleArray emittedLight;
private NibbleArray skyLight;
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index fd6f070417..45b0880607 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -263,11 +263,11 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public static boolean isValidLocation(BlockPosition blockposition) {
- return !k(blockposition) && blockposition.getX() >= -30000000 && blockposition.getZ() >= -30000000 && blockposition.getX() < 30000000 && blockposition.getZ() < 30000000;
+ return blockposition.isValidLocation(); // Paper
}
public static boolean k(BlockPosition blockposition) {
- return blockposition.getY() < 0 || blockposition.getY() >= 256;
+ return blockposition.isInvalidYLocation(); // Paper
}
public boolean isEmpty(BlockPosition blockposition) {
@@ -281,7 +281,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
// test if meets light level, return faster
// logic copied from below
public boolean isLightLevel(BlockPosition blockposition, int level) {
- if (isValidLocation(blockposition)) {
+ if (blockposition.isValidLocation()) {
if (this.getType(blockposition).c(this, blockposition)) {
int sky = getSkylightSubtracted();
if (this.getLightLevel(blockposition.up(), sky) >= level) {
@@ -325,7 +325,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
// CraftBukkit end
Chunk chunk = this.getChunkIfLoaded(blockposition);
if (chunk != null) {
- return isValidLocation(blockposition) ? chunk.getBlockData(blockposition) : Blocks.AIR.getBlockData();
+ return blockposition.isValidLocation() ? chunk.getBlockData(blockposition) : Blocks.AIR.getBlockData(); // Paper
}
return null;
}
@@ -380,7 +380,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
return true;
}
// CraftBukkit end
- if (k(blockposition)) {
+ if (blockposition.isInvalidYLocation()) { // Paper
return false;
} else if (!this.isClientSide && this.worldData.getType() == WorldType.DEBUG_ALL_BLOCK_STATES) {
return false;
@@ -701,11 +701,11 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
blockposition = new BlockPosition(blockposition.getX(), 0, blockposition.getZ());
}
- return !isValidLocation(blockposition) ? enumskyblock.c : (!this.isLoaded(blockposition) ? enumskyblock.c : this.getChunkAtWorldCoords(blockposition).getBrightness(enumskyblock, blockposition));
+ return !blockposition.isValidLocation() ? enumskyblock.c : (!this.isLoaded(blockposition) ? enumskyblock.c : this.getChunkAtWorldCoords(blockposition).getBrightness(enumskyblock, blockposition)); // Paper
}
public void a(EnumSkyBlock enumskyblock, BlockPosition blockposition, int i) {
- if (isValidLocation(blockposition)) {
+ if (blockposition.isValidLocation()) { // Paper
if (this.isLoaded(blockposition)) {
this.getChunkAtWorldCoords(blockposition).a(enumskyblock, blockposition, i);
this.m(blockposition);
@@ -732,7 +732,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
}
// CraftBukkit end
- if (k(blockposition)) {
+ if (blockposition.isInvalidYLocation()) { // Paper
return Blocks.VOID_AIR.getBlockData();
} else {
Chunk chunk = this.getChunkAtWorldCoords(blockposition);
@@ -742,7 +742,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public Fluid b(BlockPosition blockposition) {
- if (k(blockposition)) {
+ if (blockposition.isInvalidYLocation()) { // Paper
return FluidTypes.a.i();
} else {
Chunk chunk = this.getChunkAtWorldCoords(blockposition);
@@ -1803,7 +1803,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
public Map<BlockPosition, TileEntity> capturedTileEntities = Maps.newHashMap();
@Nullable
public TileEntity getTileEntity(BlockPosition blockposition) {
- if (k(blockposition)) {
+ if (blockposition.isInvalidYLocation()) { // Paper
return null;
} else {
// CraftBukkit start
@@ -1844,7 +1844,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public void setTileEntity(BlockPosition blockposition, @Nullable TileEntity tileentity) {
- if (!k(blockposition)) {
+ if (!blockposition.isInvalidYLocation()) { // Paper
if (tileentity != null && !tileentity.x()) {
// CraftBukkit start
if (captureBlockStates) {
@@ -1905,7 +1905,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public boolean p(BlockPosition blockposition) {
- if (k(blockposition)) {
+ if (blockposition.isInvalidYLocation()) { // Paper
return false;
} else {
Chunk chunk = this.chunkProvider.getChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4, false, false);
--
2.18.0
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