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Clean nibble arrays patch Packet51 to fix crash bug mentioned by Drumming102 on IRC.

Browse source 
By: md_5 <md_5@live.com.au>
This commit is contained in:
Spigot 2013-07-02 15:12:49 +10:00
parent 5a1dfe6323
commit f428695f33
2 changed files with 231 additions and 184 deletions
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194
CraftBukkit-Patches/0002-mc-dev-imports.patch
View file

@ -1,4 +1,4 @@
From d4173f0bd000a1152b28e206169701f250ffc058 Mon Sep 17 00:00:00 2001
From 1817f378de2afb1a34f322d26f9c40e7a9cc31ca Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au>
Date: Tue, 2 Jul 2013 13:13:29 +1000
Subject: [PATCH] mc-dev imports
@ -376,6 +376,198 @@ index 0000000..9afa795
+ return this.a == 0;
+ }
+}
diff --git a/src/main/java/net/minecraft/server/Packet51MapChunk.java b/src/main/java/net/minecraft/server/Packet51MapChunk.java
new file mode 100644
index 0000000..4e67e27
--- /dev/null
+++ b/src/main/java/net/minecraft/server/Packet51MapChunk.java
@@ -0,0 +1,186 @@
+package net.minecraft.server;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.zip.DataFormatException;
+import java.util.zip.Deflater;
+import java.util.zip.Inflater;
+
+public class Packet51MapChunk extends Packet {
+
+ public int a;
+ public int b;
+ public int c;
+ public int d;
+ private byte[] buffer;
+ private byte[] inflatedBuffer;
+ public boolean e;
+ private int size;
+ private static byte[] buildBuffer = new byte[196864];
+
+ public Packet51MapChunk() {
+ this.lowPriority = true;
+ }
+
+ public Packet51MapChunk(Chunk chunk, boolean flag, int i) {
+ this.lowPriority = true;
+ this.a = chunk.x;
+ this.b = chunk.z;
+ this.e = flag;
+ ChunkMap chunkmap = a(chunk, flag, i);
+ Deflater deflater = new Deflater(-1);
+
+ this.d = chunkmap.c;
+ this.c = chunkmap.b;
+
+ try {
+ this.inflatedBuffer = chunkmap.a;
+ deflater.setInput(chunkmap.a, 0, chunkmap.a.length);
+ deflater.finish();
+ this.buffer = new byte[chunkmap.a.length];
+ this.size = deflater.deflate(this.buffer);
+ } finally {
+ deflater.end();
+ }
+ }
+
+ public void a(DataInput datainput) throws java.io.IOException { // Spigot - throws
+ this.a = datainput.readInt();
+ this.b = datainput.readInt();
+ this.e = datainput.readBoolean();
+ this.c = datainput.readShort();
+ this.d = datainput.readShort();
+ this.size = datainput.readInt();
+ if (buildBuffer.length < this.size) {
+ buildBuffer = new byte[this.size];
+ }
+
+ datainput.readFully(buildBuffer, 0, this.size);
+ int i = 0;
+
+ int j;
+
+ for (j = 0; j < 16; ++j) {
+ i += this.c >> j & 1;
+ }
+
+ j = 12288 * i;
+ if (this.e) {
+ j += 256;
+ }
+
+ this.inflatedBuffer = new byte[j];
+ Inflater inflater = new Inflater();
+
+ inflater.setInput(buildBuffer, 0, this.size);
+
+ try {
+ inflater.inflate(this.inflatedBuffer);
+ } catch (DataFormatException dataformatexception) {
+ throw new IOException("Bad compressed data format");
+ } finally {
+ inflater.end();
+ }
+ }
+
+ public void a(DataOutput dataoutput) throws java.io.IOException { // Spigot - throws
+ dataoutput.writeInt(this.a);
+ dataoutput.writeInt(this.b);
+ dataoutput.writeBoolean(this.e);
+ dataoutput.writeShort((short) (this.c & '\uffff'));
+ dataoutput.writeShort((short) (this.d & '\uffff'));
+ dataoutput.writeInt(this.size);
+ dataoutput.write(this.buffer, 0, this.size);
+ }
+
+ public void handle(Connection connection) {
+ connection.a(this);
+ }
+
+ public int a() {
+ return 17 + this.size;
+ }
+
+ public static ChunkMap a(Chunk chunk, boolean flag, int i) {
+ int j = 0;
+ ChunkSection[] achunksection = chunk.i();
+ int k = 0;
+ ChunkMap chunkmap = new ChunkMap();
+ byte[] abyte = buildBuffer;
+
+ if (flag) {
+ chunk.seenByPlayer = true;
+ }
+
+ int l;
+
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ chunkmap.b |= 1 << l;
+ if (achunksection[l].getExtendedIdArray() != null) {
+ chunkmap.c |= 1 << l;
+ ++k;
+ }
+ }
+ }
+
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ byte[] abyte1 = achunksection[l].getIdArray();
+
+ System.arraycopy(abyte1, 0, abyte, j, abyte1.length);
+ j += abyte1.length;
+ }
+ }
+
+ NibbleArray nibblearray;
+
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ nibblearray = achunksection[l].getDataArray();
+ System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
+ j += nibblearray.a.length;
+ }
+ }
+
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ nibblearray = achunksection[l].getEmittedLightArray();
+ System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
+ j += nibblearray.a.length;
+ }
+ }
+
+ if (!chunk.world.worldProvider.g) {
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ nibblearray = achunksection[l].getSkyLightArray();
+ System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
+ j += nibblearray.a.length;
+ }
+ }
+ }
+
+ if (k > 0) {
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && achunksection[l].getExtendedIdArray() != null && (i & 1 << l) != 0) {
+ nibblearray = achunksection[l].getExtendedIdArray();
+ System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
+ j += nibblearray.a.length;
+ }
+ }
+ }
+
+ if (flag) {
+ byte[] abyte2 = chunk.m();
+
+ System.arraycopy(abyte2, 0, abyte, j, abyte2.length);
+ j += abyte2.length;
+ }
+
+ chunkmap.a = new byte[j];
+ System.arraycopy(abyte, 0, chunkmap.a, 0, j);
+ return chunkmap;
+ }
+}
diff --git a/src/main/java/net/minecraft/server/Packet63WorldParticles.java b/src/main/java/net/minecraft/server/Packet63WorldParticles.java
new file mode 100644
index 0000000..f036c53

221
CraftBukkit-Patches/0014-Compressed-Nibble-Arrays.patch
View file

@ -1,4 +1,4 @@
From 004bae243fac61ac72370588bbbe248a767f80c7 Mon Sep 17 00:00:00 2001
From 4a04b15cf84b0ae02d738271808890199f735331 Mon Sep 17 00:00:00 2001
From: Mike Primm <mike@primmhome.com>
Date: Sun, 13 Jan 2013 03:49:07 -0800
Subject: [PATCH] Compressed Nibble Arrays
@ -271,209 +271,64 @@ index 53c1cb5..9a9e20f 100644
}
}
diff --git a/src/main/java/net/minecraft/server/Packet51MapChunk.java b/src/main/java/net/minecraft/server/Packet51MapChunk.java
new file mode 100644
index 0000000..b7b4fd6
--- /dev/null
index 4e67e27..fa10397 100644
--- a/src/main/java/net/minecraft/server/Packet51MapChunk.java
+++ b/src/main/java/net/minecraft/server/Packet51MapChunk.java
@@ -0,0 +1,198 @@
+package net.minecraft.server;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.zip.DataFormatException;
+import java.util.zip.Deflater;
+import java.util.zip.Inflater;
+
+public class Packet51MapChunk extends Packet {
+
+ public int a;
+ public int b;
+ public int c;
+ public int d;
+ private byte[] buffer;
+ private byte[] inflatedBuffer;
+ public boolean e;
+ private int size;
+ private static byte[] buildBuffer = new byte[196864];
+
+ public Packet51MapChunk() {
+ this.lowPriority = true;
+ }
+
+ public Packet51MapChunk(Chunk chunk, boolean flag, int i) {
+ this.lowPriority = true;
+ this.a = chunk.x;
+ this.b = chunk.z;
+ this.e = flag;
+ ChunkMap chunkmap = a(chunk, flag, i);
+ Deflater deflater = new Deflater(-1);
+
+ this.d = chunkmap.c;
+ this.c = chunkmap.b;
+
+ try {
+ this.inflatedBuffer = chunkmap.a;
+ deflater.setInput(chunkmap.a, 0, chunkmap.a.length);
+ deflater.finish();
+ this.buffer = new byte[chunkmap.a.length];
+ this.size = deflater.deflate(this.buffer);
+ } finally {
+ deflater.end();
+ }
+ }
+
+ public void a(DataInput datainput) throws IOException { // CraftBukkit - throws IOException
+ this.a = datainput.readInt();
+ this.b = datainput.readInt();
+ this.e = datainput.readBoolean();
+ this.c = datainput.readShort();
+ this.d = datainput.readShort();
+ this.size = datainput.readInt();
+ if (buildBuffer.length < this.size) {
+ buildBuffer = new byte[this.size];
+ }
+
+ datainput.readFully(buildBuffer, 0, this.size);
+ int i = 0;
+
+ int j;
+
+ for (j = 0; j < 16; ++j) {
+ i += this.c >> j & 1;
+ }
+
+ j = 12288 * i;
+ if (this.e) {
+ j += 256;
+ }
+
+ this.inflatedBuffer = new byte[j];
+ Inflater inflater = new Inflater();
+
+ inflater.setInput(buildBuffer, 0, this.size);
+
+ try {
+ inflater.inflate(this.inflatedBuffer);
+ } catch (DataFormatException dataformatexception) {
+ throw new IOException("Bad compressed data format");
+ } finally {
+ inflater.end();
+ }
+ }
+
+ public void a(DataOutput dataoutput) throws IOException { // CraftBukkit - throws IOException
+ dataoutput.writeInt(this.a);
+ dataoutput.writeInt(this.b);
+ dataoutput.writeBoolean(this.e);
+ dataoutput.writeShort((short) (this.c & '\uffff'));
+ dataoutput.writeShort((short) (this.d & '\uffff'));
+ dataoutput.writeInt(this.size);
+ dataoutput.write(this.buffer, 0, this.size);
+ }
+
+ public void handle(Connection connection) {
+ connection.a(this);
+ }
+
+ public int a() {
+ return 17 + this.size;
+ }
+
+ public static ChunkMap a(Chunk chunk, boolean flag, int i) {
+ int j = 0;
+ ChunkSection[] achunksection = chunk.i();
+ int k = 0;
+ ChunkMap chunkmap = new ChunkMap();
+ byte[] abyte = buildBuffer;
+
+ if (flag) {
+ chunk.seenByPlayer = true;
+ }
+
+ int l;
+
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ chunkmap.b |= 1 << l;
+ if (achunksection[l].getExtendedIdArray() != null) {
+ chunkmap.c |= 1 << l;
+ ++k;
+ }
+ }
+ }
+
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ byte[] abyte1 = achunksection[l].getIdArray();
+
+ System.arraycopy(abyte1, 0, abyte, j, abyte1.length);
+ j += abyte1.length;
+ }
+ }
+
+ NibbleArray nibblearray;
+
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ nibblearray = achunksection[l].getDataArray();
@@ -139,16 +139,22 @@ public class Packet51MapChunk extends Packet {
for (l = 0; l < achunksection.length; ++l) {
if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
nibblearray = achunksection[l].getDataArray();
- System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
- j += nibblearray.a.length;
+ // Spigot start
+ // System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
+ // j += nibblearray.a.length;
+ j = nibblearray.copyToByteArray(abyte, j);
+ // Spigot end
+ }
+ }
+
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ nibblearray = achunksection[l].getEmittedLightArray();
}
}
for (l = 0; l < achunksection.length; ++l) {
if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
nibblearray = achunksection[l].getEmittedLightArray();
- System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
- j += nibblearray.a.length;
+ // Spigot start
+ // System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
+ // j += nibblearray.a.length;
+ j = nibblearray.copyToByteArray(abyte, j);
+ // Spigot end
+ }
+ }
+
+ if (!chunk.world.worldProvider.f) {
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
+ nibblearray = achunksection[l].getSkyLightArray();
}
}
@@ -156,8 +162,11 @@ public class Packet51MapChunk extends Packet {
for (l = 0; l < achunksection.length; ++l) {
if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && (i & 1 << l) != 0) {
nibblearray = achunksection[l].getSkyLightArray();
- System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
- j += nibblearray.a.length;
+ // Spigot start
+ // System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
+ // j += nibblearray.a.length;
+ j = nibblearray.copyToByteArray(abyte, j);
+ // Spigot end
+ }
+ }
+ }
+
+ if (k > 0) {
+ for (l = 0; l < achunksection.length; ++l) {
+ if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && achunksection[l].getExtendedIdArray() != null && (i & 1 << l) != 0) {
+ nibblearray = achunksection[l].getExtendedIdArray();
}
}
}
@@ -166,8 +175,11 @@ public class Packet51MapChunk extends Packet {
for (l = 0; l < achunksection.length; ++l) {
if (achunksection[l] != null && (!flag || !achunksection[l].isEmpty()) && achunksection[l].getExtendedIdArray() != null && (i & 1 << l) != 0) {
nibblearray = achunksection[l].getExtendedIdArray();
- System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
- j += nibblearray.a.length;
+ // Spigot start
+ //System.arraycopy(nibblearray.a, 0, abyte, j, nibblearray.a.length);
+ //j += nibblearray.a.length;
+ j = nibblearray.copyToByteArray(abyte, j);
+ // Spigot end
+ }
+ }
+ }
+
+ if (flag) {
+ byte[] abyte2 = chunk.m();
+
+ System.arraycopy(abyte2, 0, abyte, j, abyte2.length);
+ j += abyte2.length;
+ }
+
+ chunkmap.a = new byte[j];
+ System.arraycopy(abyte, 0, chunkmap.a, 0, j);
+ return chunkmap;
+ }
+}
}
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
index 1a21516..6921206 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java