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https://github.com/Ryujinx/Ryujinx.git
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c6d05301aa
* Update readme to mention .NET 7 * infra: Migrate to .NET 7 .NET 7 is still in preview but this prepare for the release coming up next month. * Use Random.Shared in CreateRandom * Move UInt128Utils.cs to Ryujinx.Common project * Fix inverted parameters in System.UInt128 constructor * Fix Visual Studio complains on Ryujinx.Graphics.Vic * time: Fix missing alignment enforcement in SystemClockContext Fixes at least Smash * time: Fix missing alignment enforcement in SteadyClockContext Fix games (like recent version of Smash) using time shared memory * Switch to .NET 7.0.100 release * Enable Tiered PGO * Ensure CreateId validity requirements are meet when doing random generation Also enforce correct packing layout for other Mii structures. This fix a Mario Kart 8 crashes related to the default Miis.
75 lines
1.8 KiB
C#
75 lines
1.8 KiB
C#
using Ryujinx.Common.Utilities;
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using Ryujinx.Cpu;
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using Ryujinx.HLE.HOS.Services.Mii.Types;
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using Ryujinx.HLE.HOS.Services.Time;
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using Ryujinx.HLE.HOS.Services.Time.Clock;
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using System;
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namespace Ryujinx.HLE.HOS.Services.Mii
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{
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class UtilityImpl
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{
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private uint _x;
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private uint _y;
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private uint _z;
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private uint _w;
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public UtilityImpl(ITickSource tickSource)
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{
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_x = 123456789;
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_y = 362436069;
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TimeSpanType time = TimeManager.Instance.TickBasedSteadyClock.GetCurrentRawTimePoint(tickSource);
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_w = (uint)(time.NanoSeconds & uint.MaxValue);
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_z = (uint)((time.NanoSeconds >> 32) & uint.MaxValue);
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}
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private uint GetRandom()
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{
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uint t = (_x ^ (_x << 11));
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_x = _y;
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_y = _z;
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_z = _w;
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_w = (_w ^ (_w >> 19)) ^ (t ^ (t >> 8));
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return _w;
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}
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public int GetRandom(int end)
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{
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return (int)GetRandom((uint)end);
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}
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public uint GetRandom(uint end)
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{
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uint random = GetRandom();
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return random - random / end * end;
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}
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public uint GetRandom(uint start, uint end)
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{
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uint random = GetRandom();
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return random - random / (1 - start + end) * (1 - start + end) + start;
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}
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public int GetRandom(int start, int end)
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{
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return (int)GetRandom((uint)start, (uint)end);
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}
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public CreateId MakeCreateId()
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{
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UInt128 value = UInt128Utils.CreateRandom();
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// Ensure the random ID generated is valid as a create id.
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value &= ~new UInt128(0xC0, 0);
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value |= new UInt128(0x80, 0);
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return new CreateId(value);
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}
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}
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}
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