fe02ca682e
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). Additional documentation and release notes are available at [Multiplayer Documentation](https://docs-multiplayer.unity3d.com). ## [1.2.0] - 2022-11-21 ### Added - Added protected method `NetworkBehaviour.OnSynchronize` which is invoked during the initial `NetworkObject` synchronization process. This provides users the ability to include custom serialization information that will be applied to the `NetworkBehaviour` prior to the `NetworkObject` being spawned. (#2298) - Added support for different versions of the SDK to talk to each other in circumstances where changes permit it. Starting with this version and into future versions, patch versions should be compatible as long as the minor version is the same. (#2290) - Added `NetworkObject` auto-add helper and Multiplayer Tools install reminder settings to Project Settings. (#2285) - Added `public string DisconnectReason` getter to `NetworkManager` and `string Reason` to `ConnectionApprovalResponse`. Allows connection approval to communicate back a reason. Also added `public void DisconnectClient(ulong clientId, string reason)` allowing setting a disconnection reason, when explicitly disconnecting a client. (#2280) ### Changed - Changed 3rd-party `XXHash` (32 & 64) implementation with an in-house reimplementation (#2310) - When `NetworkConfig.EnsureNetworkVariableLengthSafety` is disabled `NetworkVariable` fields do not write the additional `ushort` size value (_which helps to reduce the total synchronization message size_), but when enabled it still writes the additional `ushort` value. (#2298) - Optimized bandwidth usage by encoding most integer fields using variable-length encoding. (#2276) ### Fixed - Fixed issue where `NetworkTransform` components nested under a parent with a `NetworkObject` component (i.e. network prefab) would not have their associated `GameObject`'s transform synchronized. (#2298) - Fixed issue where `NetworkObject`s that failed to instantiate could cause the entire synchronization pipeline to be disrupted/halted for a connecting client. (#2298) - Fixed issue where in-scene placed `NetworkObject`s nested under a `GameObject` would be added to the orphaned children list causing continual console warning log messages. (#2298) - Custom messages are now properly received by the local client when they're sent while running in host mode. (#2296) - Fixed issue where the host would receive more than one event completed notification when loading or unloading a scene only when no clients were connected. (#2292) - Fixed an issue in `UnityTransport` where an error would be logged if the 'Use Encryption' flag was enabled with a Relay configuration that used a secure protocol. (#2289) - Fixed issue where in-scene placed `NetworkObjects` were not honoring the `AutoObjectParentSync` property. (#2281) - Fixed the issue where `NetworkManager.OnClientConnectedCallback` was being invoked before in-scene placed `NetworkObject`s had been spawned when starting `NetworkManager` as a host. (#2277) - Creating a `FastBufferReader` with `Allocator.None` will not result in extra memory being allocated for the buffer (since it's owned externally in that scenario). (#2265) ### Removed - Removed the `NetworkObject` auto-add and Multiplayer Tools install reminder settings from the Menu interface. (#2285)
249 lines
8.5 KiB
C#
249 lines
8.5 KiB
C#
using System;
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using System.Text;
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using System.Runtime.CompilerServices;
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namespace Unity.Netcode
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{
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internal static class XXHash
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static unsafe uint Hash32(byte* input, int length, uint seed = 0)
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{
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unchecked
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{
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const uint prime1 = 2654435761u;
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const uint prime2 = 2246822519u;
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const uint prime3 = 3266489917u;
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const uint prime4 = 0668265263u;
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const uint prime5 = 0374761393u;
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uint hash = seed + prime5;
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if (length >= 16)
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{
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uint val0 = seed + prime1 + prime2;
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uint val1 = seed + prime2;
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uint val2 = seed + 0;
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uint val3 = seed - prime1;
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int count = length >> 4;
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for (int i = 0; i < count; i++)
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{
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var pos0 = *(uint*)(input + 0);
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var pos1 = *(uint*)(input + 4);
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var pos2 = *(uint*)(input + 8);
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var pos3 = *(uint*)(input + 12);
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val0 += pos0 * prime2;
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val0 = (val0 << 13) | (val0 >> (32 - 13));
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val0 *= prime1;
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val1 += pos1 * prime2;
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val1 = (val1 << 13) | (val1 >> (32 - 13));
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val1 *= prime1;
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val2 += pos2 * prime2;
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val2 = (val2 << 13) | (val2 >> (32 - 13));
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val2 *= prime1;
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val3 += pos3 * prime2;
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val3 = (val3 << 13) | (val3 >> (32 - 13));
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val3 *= prime1;
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input += 16;
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}
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hash = ((val0 << 01) | (val0 >> (32 - 01))) +
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((val1 << 07) | (val1 >> (32 - 07))) +
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((val2 << 12) | (val2 >> (32 - 12))) +
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((val3 << 18) | (val3 >> (32 - 18)));
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}
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hash += (uint)length;
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length &= 15;
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while (length >= 4)
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{
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hash += *(uint*)input * prime3;
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hash = ((hash << 17) | (hash >> (32 - 17))) * prime4;
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input += 4;
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length -= 4;
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}
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while (length > 0)
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{
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hash += *input * prime5;
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hash = ((hash << 11) | (hash >> (32 - 11))) * prime1;
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++input;
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--length;
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}
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hash ^= hash >> 15;
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hash *= prime2;
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hash ^= hash >> 13;
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hash *= prime3;
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hash ^= hash >> 16;
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return hash;
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static unsafe ulong Hash64(byte* input, int length, uint seed = 0)
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{
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unchecked
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{
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const ulong prime1 = 11400714785074694791ul;
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const ulong prime2 = 14029467366897019727ul;
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const ulong prime3 = 01609587929392839161ul;
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const ulong prime4 = 09650029242287828579ul;
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const ulong prime5 = 02870177450012600261ul;
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ulong hash = seed + prime5;
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if (length >= 32)
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{
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ulong val0 = seed + prime1 + prime2;
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ulong val1 = seed + prime2;
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ulong val2 = seed + 0;
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ulong val3 = seed - prime1;
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int count = length >> 5;
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for (int i = 0; i < count; i++)
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{
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var pos0 = *(ulong*)(input + 0);
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var pos1 = *(ulong*)(input + 8);
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var pos2 = *(ulong*)(input + 16);
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var pos3 = *(ulong*)(input + 24);
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val0 += pos0 * prime2;
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val0 = (val0 << 31) | (val0 >> (64 - 31));
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val0 *= prime1;
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val1 += pos1 * prime2;
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val1 = (val1 << 31) | (val1 >> (64 - 31));
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val1 *= prime1;
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val2 += pos2 * prime2;
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val2 = (val2 << 31) | (val2 >> (64 - 31));
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val2 *= prime1;
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val3 += pos3 * prime2;
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val3 = (val3 << 31) | (val3 >> (64 - 31));
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val3 *= prime1;
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input += 32;
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}
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hash = ((val0 << 01) | (val0 >> (64 - 01))) +
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((val1 << 07) | (val1 >> (64 - 07))) +
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((val2 << 12) | (val2 >> (64 - 12))) +
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((val3 << 18) | (val3 >> (64 - 18)));
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val0 *= prime2;
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val0 = (val0 << 31) | (val0 >> (64 - 31));
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val0 *= prime1;
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hash ^= val0;
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hash = hash * prime1 + prime4;
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val1 *= prime2;
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val1 = (val1 << 31) | (val1 >> (64 - 31));
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val1 *= prime1;
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hash ^= val1;
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hash = hash * prime1 + prime4;
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val2 *= prime2;
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val2 = (val2 << 31) | (val2 >> (64 - 31));
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val2 *= prime1;
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hash ^= val2;
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hash = hash * prime1 + prime4;
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val3 *= prime2;
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val3 = (val3 << 31) | (val3 >> (64 - 31));
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val3 *= prime1;
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hash ^= val3;
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hash = hash * prime1 + prime4;
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}
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hash += (ulong)length;
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length &= 31;
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while (length >= 8)
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{
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ulong lane = *(ulong*)input * prime2;
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lane = ((lane << 31) | (lane >> (64 - 31))) * prime1;
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hash ^= lane;
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hash = ((hash << 27) | (hash >> (64 - 27))) * prime1 + prime4;
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input += 8;
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length -= 8;
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}
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if (length >= 4)
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{
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hash ^= *(uint*)input * prime1;
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hash = ((hash << 23) | (hash >> (64 - 23))) * prime2 + prime3;
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input += 4;
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length -= 4;
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}
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while (length > 0)
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{
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hash ^= *input * prime5;
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hash = ((hash << 11) | (hash >> (64 - 11))) * prime1;
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++input;
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--length;
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}
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hash ^= hash >> 33;
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hash *= prime2;
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hash ^= hash >> 29;
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hash *= prime3;
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hash ^= hash >> 32;
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return hash;
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static uint Hash32(this byte[] buffer)
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{
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int length = buffer.Length;
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unsafe
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{
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fixed (byte* pointer = buffer)
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{
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return Hash32(pointer, length);
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}
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static uint Hash32(this string text) => Hash32(Encoding.UTF8.GetBytes(text));
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static uint Hash32(this Type type) => Hash32(type.FullName);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static uint Hash32<T>() => Hash32(typeof(T));
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ulong Hash64(this byte[] buffer)
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{
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int length = buffer.Length;
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unsafe
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{
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fixed (byte* pointer = buffer)
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{
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return Hash64(pointer, length);
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}
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ulong Hash64(this string text) => Hash64(Encoding.UTF8.GetBytes(text));
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ulong Hash64(this Type type) => Hash64(type.FullName);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static ulong Hash64<T>() => Hash64(typeof(T));
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}
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}
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