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perf: Reduce enum bandwidth (#794)

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enums are serialized according to their size.
if enum extend byte,  they use 1 byte
if enum extend short, they use 2 bytes
if enum extend int,  they are varinted
if enum extend long, they are varinted

So on average,  most enums will take 1 byte.   Previously they always required 4 bytes
This commit is contained in:
Paul Pacheco 2019-04-10 17:01:09 -05:00 committed by vis2k
parent f00c8e5e62
commit 97e9ac2483
4 changed files with 13 additions and 8 deletions
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11
Assets/Mirror/Editor/Weaver/Extensions.cs
View File

@ -1,3 +1,4 @@
using System;
using Mono.Cecil;
namespace Mirror.Weaver
@ -40,6 +41,16 @@ public static bool IsDerivedFrom(this TypeDefinition td, TypeReference baseClass
return false;
}
public static TypeReference GetEnumUnderlyingType(this TypeDefinition td)
{
foreach (FieldDefinition field in td.Fields)
{
if (!field.IsStatic)
return field.FieldType;
}
throw new ArgumentException($"Invalid enum {td.FullName}");
}
public static bool ImplementsInterface(this TypeDefinition td, TypeReference baseInterface)
{
TypeDefinition typedef = td;

2
Assets/Mirror/Editor/Weaver/Readers.cs
View File

@ -96,7 +96,7 @@ public static MethodReference GetReadFunc(TypeReference variable, int recursionC
}
else if (td.IsEnum)
{
return Weaver.NetworkReaderReadInt32;
return GetReadFunc(td.GetEnumUnderlyingType(), recursionCount);
}
else
{

6
Assets/Mirror/Editor/Weaver/Weaver.cs
View File

@ -83,9 +83,6 @@ class Weaver
public static TypeReference CmdDelegateReference;
public static MethodReference CmdDelegateConstructor;
public static MethodReference NetworkReaderReadInt32;
public static MethodReference NetworkWriterWriteInt32;
public static MethodReference NetworkWriterWriteInt16;
public static MethodReference NetworkServerGetActive;
@ -307,9 +304,6 @@ static void SetupTargetTypes()
NetworkServerGetLocalClientActive = Resolvers.ResolveMethod(NetworkServerType, CurrentAssembly, "get_localClientActive");
NetworkClientGetActive = Resolvers.ResolveMethod(NetworkClientType, CurrentAssembly, "get_active");
NetworkReaderReadInt32 = Resolvers.ResolveMethod(NetworkReaderType, CurrentAssembly, "ReadInt32");
NetworkWriterWriteInt32 = Resolvers.ResolveMethodWithArg(NetworkWriterType, CurrentAssembly, "Write", int32Type);
NetworkWriterWriteInt16 = Resolvers.ResolveMethodWithArg(NetworkWriterType, CurrentAssembly, "Write", int16Type);
NetworkReaderReadPackedUInt32 = Resolvers.ResolveMethod(NetworkReaderType, CurrentAssembly, "ReadPackedUInt32");

2
Assets/Mirror/Editor/Weaver/Writers.cs
View File

@ -90,7 +90,7 @@ public static MethodReference GetWriteFunc(TypeReference variable, int recursion
}
else if (variable.Resolve().IsEnum)
{
return Weaver.NetworkWriterWriteInt32;
return GetWriteFunc(variable.Resolve().GetEnumUnderlyingType(), recursionCount);
}
else
{