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Paper/patches/server/1000-Optimize-Bit-Operations-by-inlining.patch
Jake Potrebic ac554ad46d
Updated Upstream (Bukkit/CraftBukkit) (#10691) 
Updated Upstream (Bukkit/CraftBukkit)

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:
fa99e752 PR-1007: Add ItemMeta#getAsComponentString()
94a91782 Fix copy-pasted BlockType.Typed documentation
9b34ac8c Largely restore deprecated PotionData API
51a6449b PR-1008: Deprecate ITEMS_TOOLS, removed in 1.20.5
702d15fe Fix Javadoc reference
42f6cdf4 PR-919: Add internal ItemType and BlockType, delegate Material methods to them
237bb37b SPIGOT-1166, SPIGOT-7647: Expose Damager BlockState in EntityDamageByBlockEvent
035ea146 SPIGOT-6993: Allow #setVelocity to change the speed of a fireball and add a note to #setDirection about it
8c7880fb PR-1004: Improve field rename handling and centralize conversion between bukkit and string more
87c90e93 SPIGOT-7650: Add DamageSource for EntityDeathEvent and PlayerDeathEvent

CraftBukkit Changes:
4af0f22e8 SPIGOT-7664: Item meta should prevail over block states
c2ccc46ec SPIGOT-7666: Fix access to llama and horse special slot
124ac66d7 SPIGOT-7665: Fix ThrownPotion#getEffects() implementation only bringing custom effects
66f1f439a Restore null page behaviour of signed books even though not strictly allowed by API
6118e5398 Fix regression listening to minecraft:brand custom payloads
c1a26b366 Fix unnecessary and potential not thread-safe chat visibility check
12360a7ec Remove unused imports
147b098b4 PR-1397: Add ItemMeta#getAsComponentString()
428aefe0e Largely restore deprecated PotionData API
afe5b5ee9 PR-1275: Add internal ItemType and BlockType, delegate Material methods to them
8afeafa7d SPIGOT-1166, SPIGOT-7647: Expose Damager BlockState in EntityDamageByBlockEvent
4e7d749d4 SPIGOT-6993: Allow #setVelocity to change the speed of a fireball and add a note to #setDirection about it
441880757 Support both entity_data and bucket_entity_data on axolotl/fish buckets
0e22fdd1e Fix custom direct BlockState being not correctly set in DamageSource
f2182ed47 SPIGOT-7659: TropicalFishBucketMeta should use BUCKET_ENTITY_DATA
2a6207fe1 PR-1393: Improve field rename handling and centralize conversion between bukkit and string more
c024a5039 SPIGOT-7650: Add DamageSource for EntityDeathEvent and PlayerDeathEvent
741b84480 PR-1390: Improve internal handling of damage sources
0364df4e1 SPIGOT-7657: Error when loading angry entities
2024-05-11 23:48:37 +02:00

214 Zeilen
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Originalformat Blame Verlauf

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 4 Jun 2020 02:24:49 -0400
Subject: [PATCH] Optimize Bit Operations by inlining
Inline bit operations and reduce instruction count to make these hot
operations faster
diff --git a/src/main/java/net/minecraft/core/BlockPos.java b/src/main/java/net/minecraft/core/BlockPos.java
index 4144c872fbd89d22827ad1f586e9a8d63a39ed46..665e88b2dedf9d5bb50914d5f3d377f2d19f40b0 100644
--- a/src/main/java/net/minecraft/core/BlockPos.java
+++ b/src/main/java/net/minecraft/core/BlockPos.java
@@ -50,15 +50,16 @@ public class BlockPos extends Vec3i {
};
private static final Logger LOGGER = LogUtils.getLogger();
public static final BlockPos ZERO = new BlockPos(0, 0, 0);
- private static final int PACKED_X_LENGTH = 1 + Mth.log2(Mth.smallestEncompassingPowerOfTwo(30000000));
- private static final int PACKED_Z_LENGTH = PACKED_X_LENGTH;
- public static final int PACKED_Y_LENGTH = 64 - PACKED_X_LENGTH - PACKED_Z_LENGTH;
- private static final long PACKED_X_MASK = (1L << PACKED_X_LENGTH) - 1L;
- private static final long PACKED_Y_MASK = (1L << PACKED_Y_LENGTH) - 1L;
- private static final long PACKED_Z_MASK = (1L << PACKED_Z_LENGTH) - 1L;
- private static final int Y_OFFSET = 0;
- private static final int Z_OFFSET = PACKED_Y_LENGTH;
- private static final int X_OFFSET = PACKED_Y_LENGTH + PACKED_Z_LENGTH;
+ // Paper start - Optimize Bit Operations by inlining
+ private static final int PACKED_X_LENGTH = 26;
+ private static final int PACKED_Z_LENGTH = 26;
+ public static final int PACKED_Y_LENGTH = 12;
+ private static final long PACKED_X_MASK = 67108863;
+ private static final long PACKED_Y_MASK = 4095;
+ private static final long PACKED_Z_MASK = 67108863;
+ private static final int Z_OFFSET = 12;
+ private static final int X_OFFSET = 38;
+ // Paper end - Optimize Bit Operations by inlining
public BlockPos(int x, int y, int z) {
super(x, y, z);
@@ -68,28 +69,29 @@ public class BlockPos extends Vec3i {
this(pos.getX(), pos.getY(), pos.getZ());
}
+ public static long getAdjacent(int baseX, int baseY, int baseZ, Direction enumdirection) { return asLong(baseX + enumdirection.getStepX(), baseY + enumdirection.getStepY(), baseZ + enumdirection.getStepZ()); } // Paper
public static long offset(long value, Direction direction) {
return offset(value, direction.getStepX(), direction.getStepY(), direction.getStepZ());
}
public static long offset(long value, int x, int y, int z) {
- return asLong(getX(value) + x, getY(value) + y, getZ(value) + z);
+ return asLong((int) (value >> 38) + x, (int) ((value << 52) >> 52) + y, (int) ((value << 26) >> 38) + z); // Paper - simplify/inline
}
public static int getX(long packedPos) {
- return (int)(packedPos << 64 - X_OFFSET - PACKED_X_LENGTH >> 64 - PACKED_X_LENGTH);
+ return (int) (packedPos >> 38); // Paper - simplify/inline
}
public static int getY(long packedPos) {
- return (int)(packedPos << 64 - PACKED_Y_LENGTH >> 64 - PACKED_Y_LENGTH);
+ return (int) ((packedPos << 52) >> 52); // Paper - simplify/inline
}
public static int getZ(long packedPos) {
- return (int)(packedPos << 64 - Z_OFFSET - PACKED_Z_LENGTH >> 64 - PACKED_Z_LENGTH);
+ return (int) ((packedPos << 26) >> 38); // Paper - simplify/inline
}
public static BlockPos of(long packedPos) {
- return new BlockPos(getX(packedPos), getY(packedPos), getZ(packedPos));
+ return new BlockPos((int) (packedPos >> 38), (int) ((packedPos << 52) >> 52), (int) ((packedPos << 26) >> 38)); // Paper - simplify/inline
}
public static BlockPos containing(double x, double y, double z) {
@@ -113,10 +115,7 @@ public class BlockPos extends Vec3i {
}
public static long asLong(int x, int y, int z) {
- long l = 0L;
- l |= ((long)x & PACKED_X_MASK) << X_OFFSET;
- l |= ((long)y & PACKED_Y_MASK) << 0;
- return l | ((long)z & PACKED_Z_MASK) << Z_OFFSET;
+ return (((long) x & (long) 67108863) << 38) | (((long) y & (long) 4095)) | (((long) z & (long) 67108863) << 12); // Paper - inline constants and simplify
}
public static long getFlatIndex(long y) {
diff --git a/src/main/java/net/minecraft/core/SectionPos.java b/src/main/java/net/minecraft/core/SectionPos.java
index 27e0d53d5893a13a340deddc93a1128968db7e5b..fe3577e533fb829c85fd4881b1bcca3b70aaf1a5 100644
--- a/src/main/java/net/minecraft/core/SectionPos.java
+++ b/src/main/java/net/minecraft/core/SectionPos.java
@@ -38,7 +38,7 @@ public class SectionPos extends Vec3i {
}
public static SectionPos of(BlockPos pos) {
- return new SectionPos(blockToSectionCoord(pos.getX()), blockToSectionCoord(pos.getY()), blockToSectionCoord(pos.getZ()));
+ return new SectionPos(pos.getX() >> 4, pos.getY() >> 4, pos.getZ() >> 4); // Paper
}
public static SectionPos of(ChunkPos chunkPos, int y) {
@@ -54,7 +54,7 @@ public class SectionPos extends Vec3i {
}
public static SectionPos of(long packed) {
- return new SectionPos(x(packed), y(packed), z(packed));
+ return new SectionPos((int) (packed >> 42), (int) (packed << 44 >> 44), (int) (packed << 22 >> 42)); // Paper
}
public static SectionPos bottomOf(ChunkAccess chunk) {
@@ -65,8 +65,16 @@ public class SectionPos extends Vec3i {
return offset(packed, direction.getStepX(), direction.getStepY(), direction.getStepZ());
}
+ // Paper start
+ public static long getAdjacentFromBlockPos(int x, int y, int z, Direction enumdirection) {
+ return (((long) ((x >> 4) + enumdirection.getStepX()) & 4194303L) << 42) | (((long) ((y >> 4) + enumdirection.getStepY()) & 1048575L)) | (((long) ((z >> 4) + enumdirection.getStepZ()) & 4194303L) << 20);
+ }
+ public static long getAdjacentFromSectionPos(int x, int y, int z, Direction enumdirection) {
+ return (((long) (x + enumdirection.getStepX()) & 4194303L) << 42) | (((long) ((y) + enumdirection.getStepY()) & 1048575L)) | (((long) (z + enumdirection.getStepZ()) & 4194303L) << 20);
+ }
+ // Paper end
public static long offset(long packed, int x, int y, int z) {
- return asLong(x(packed) + x, y(packed) + y, z(packed) + z);
+ return (((long) ((int) (packed >> 42) + x) & 4194303L) << 42) | (((long) ((int) (packed << 44 >> 44) + y) & 1048575L)) | (((long) ((int) (packed << 22 >> 42) + z) & 4194303L) << 20); // Simplify to reduce instruction count
}
public static int posToSectionCoord(double coord) {
@@ -86,10 +94,7 @@ public class SectionPos extends Vec3i {
}
public static short sectionRelativePos(BlockPos pos) {
- int i = sectionRelative(pos.getX());
- int j = sectionRelative(pos.getY());
- int k = sectionRelative(pos.getZ());
- return (short)(i << 8 | k << 4 | j << 0);
+ return (short) ((pos.getX() & 15) << 8 | (pos.getZ() & 15) << 4 | pos.getY() & 15); // Paper - simplify/inline
}
public static int sectionRelativeX(short packedLocalPos) {
@@ -152,16 +157,16 @@ public class SectionPos extends Vec3i {
return this.getZ();
}
- public int minBlockX() {
- return sectionToBlockCoord(this.x());
+ public final int minBlockX() { // Paper - make final
+ return this.getX() << 4; // Paper - inline
}
- public int minBlockY() {
- return sectionToBlockCoord(this.y());
+ public final int minBlockY() { // Paper - make final
+ return this.getY() << 4; // Paper - inline
}
- public int minBlockZ() {
- return sectionToBlockCoord(this.z());
+ public int minBlockZ() { // Paper - make final
+ return this.getZ() << 4; // Paper - inline
}
public int maxBlockX() {
@@ -177,7 +182,8 @@ public class SectionPos extends Vec3i {
}
public static long blockToSection(long blockPos) {
- return asLong(blockToSectionCoord(BlockPos.getX(blockPos)), blockToSectionCoord(BlockPos.getY(blockPos)), blockToSectionCoord(BlockPos.getZ(blockPos)));
+ // b(a(BlockPosition.b(i)), a(BlockPosition.c(i)), a(BlockPosition.d(i)));
+ return (((long) (int) (blockPos >> 42) & 4194303L) << 42) | (((long) (int) ((blockPos << 52) >> 56) & 1048575L)) | (((long) (int) ((blockPos << 26) >> 42) & 4194303L) << 20); // Simplify to reduce instruction count
}
public static long getZeroNode(int x, int z) {
@@ -205,15 +211,18 @@ public class SectionPos extends Vec3i {
return asLong(blockToSectionCoord(pos.getX()), blockToSectionCoord(pos.getY()), blockToSectionCoord(pos.getZ()));
}
+ // Paper start
+ public static long blockPosAsSectionLong(int i, int j, int k) {
+ return (((long) (i >> 4) & 4194303L) << 42) | (((long) (j >> 4) & 1048575L)) | (((long) (k >> 4) & 4194303L) << 20);
+ }
+ // Paper end
+
public static long asLong(int x, int y, int z) {
- long l = 0L;
- l |= ((long)x & 4194303L) << 42;
- l |= ((long)y & 1048575L) << 0;
- return l | ((long)z & 4194303L) << 20;
+ return (((long) x & 4194303L) << 42) | (((long) y & 1048575L)) | (((long) z & 4194303L) << 20); // Paper - Simplify to reduce instruction count
}
public long asLong() {
- return asLong(this.x(), this.y(), this.z());
+ return (((long) getX() & 4194303L) << 42) | (((long) getY() & 1048575L)) | (((long) getZ() & 4194303L) << 20); // Paper - Simplify to reduce instruction count
}
@Override
@@ -226,16 +235,11 @@ public class SectionPos extends Vec3i {
}
public static Stream<SectionPos> cube(SectionPos center, int radius) {
- int i = center.x();
- int j = center.y();
- int k = center.z();
- return betweenClosedStream(i - radius, j - radius, k - radius, i + radius, j + radius, k + radius);
+ return betweenClosedStream(center.getX() - radius, center.getY() - radius, center.getZ() - radius, center.getX() + radius, center.getY() + radius, center.getZ() + radius); // Paper - simplify/inline
}
public static Stream<SectionPos> aroundChunk(ChunkPos center, int radius, int minY, int maxY) {
- int i = center.x;
- int j = center.z;
- return betweenClosedStream(i - radius, minY, j - radius, i + radius, maxY - 1, j + radius);
+ return betweenClosedStream(center.x - radius, 0, center.z - radius, center.x + radius, 15, center.z + radius); // Paper - simplify/inline
}
public static Stream<SectionPos> betweenClosedStream(int minX, int minY, int minZ, int maxX, int maxY, int maxZ) {
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