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Minor improvement to var int writing

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This commit is contained in:
Nassim Jahnke 2022-03-26 18:12:12 +01:00
parent d1699fbb8d
commit 71944be482
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1 changed files with 16 additions and 19 deletions
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35
api/src/main/java/com/viaversion/viaversion/api/type/types/VarIntType.java
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@ -28,40 +28,37 @@ import io.netty.buffer.ByteBuf;
public class VarIntType extends Type<Integer> implements TypeConverter<Integer> {
private static final int CONTINUE_BIT = 0x80;
private static final int VALUE_BITS = 0x7F;
private static final int MULTI_BYTE_BITS = ~VALUE_BITS;
private static final int MAX_BYTES = 5;
public VarIntType() {
super("VarInt", Integer.class);
}
public int readPrimitive(ByteBuf buffer) {
int out = 0;
int value = 0;
int bytes = 0;
byte in;
do {
in = buffer.readByte();
out |= (in & 0x7F) << (bytes++ * 7);
if (bytes > 5) { // 5 is maxBytes
value |= (in & VALUE_BITS) << (bytes++ * 7);
if (bytes > MAX_BYTES) {
throw new RuntimeException("VarInt too big");
}
} while ((in & 0x80) == 0x80);
return out;
} while ((in & CONTINUE_BIT) == CONTINUE_BIT);
return value;
}
public void writePrimitive(ByteBuf buffer, int object) {
int part;
do {
part = object & 0x7F;
public void writePrimitive(ByteBuf buffer, int value) {
while ((value & MULTI_BYTE_BITS) != 0) {
buffer.writeByte((value & VALUE_BITS) | CONTINUE_BIT);
value >>>= 7;
}
object >>>= 7;
if (object != 0) {
part |= 0x80;
}
buffer.writeByte(part);
} while (object != 0);
buffer.writeByte(value);
}
/**