83 lines
2.2 KiB
C#
83 lines
2.2 KiB
C#
using System;
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using System.IO;
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using BizHawk.Emulation.Common;
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using BizHawk.Emulation.Cores.Nintendo.N64.NativeApi;
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namespace BizHawk.Emulation.Cores.Nintendo.N64
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{
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public partial class N64 : IStatable
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{
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public void SaveStateBinary(BinaryWriter writer)
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{
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byte[] data = SaveStatePrivateBuff;
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int bytes_used = api.SaveState(data);
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writer.Write(bytes_used);
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writer.Write(data, 0, bytes_used);
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byte[] saveram = api.SaveSaveram();
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writer.Write(saveram);
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if (saveram.Length != mupen64plusApi.kSaveramSize)
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{
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throw new InvalidOperationException("Unexpected N64 SaveRam size");
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}
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// other variables
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writer.Write(IsLagFrame);
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writer.Write(LagCount);
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writer.Write(Frame);
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}
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public void LoadStateBinary(BinaryReader reader)
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{
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int length = reader.ReadInt32();
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if ((_disableExpansionSlot && length >= 16788288) || (!_disableExpansionSlot && length < 16788288))
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{
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throw new SavestateSizeMismatchException("Wrong N64 savestate size");
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}
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reader.Read(SaveStatePrivateBuff, 0, length);
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byte[] data = SaveStatePrivateBuff;
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api.LoadState(data);
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reader.Read(SaveStatePrivateBuff, 0, mupen64plusApi.kSaveramSize);
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api.LoadSaveram(SaveStatePrivateBuff);
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// other variables
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IsLagFrame = reader.ReadBoolean();
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LagCount = reader.ReadInt32();
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Frame = reader.ReadInt32();
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}
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public byte[] SaveStateBinary()
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{
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// WELCOME TO THE HACK ZONE
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byte[] saveram = api.SaveSaveram();
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int lenwant = 4 + SaveStatePrivateBuff.Length + saveram.Length + 1 + 4 + 4;
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if (SaveStateBinaryPrivateBuff.Length != lenwant)
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{
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Console.WriteLine("Allocating new N64 private buffer size {0}", lenwant);
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SaveStateBinaryPrivateBuff = new byte[lenwant];
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}
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using var ms = new MemoryStream(SaveStateBinaryPrivateBuff);
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using var bw = new BinaryWriter(ms);
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SaveStateBinary(bw);
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bw.Flush();
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if (ms.Length != SaveStateBinaryPrivateBuff.Length)
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{
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throw new Exception("Unexpected Length");
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}
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return SaveStateBinaryPrivateBuff;
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}
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private byte[] SaveStatePrivateBuff = new byte[16788288 + 1024];
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private byte[] SaveStateBinaryPrivateBuff = new byte[0];
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}
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}
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