84 lines
2.2 KiB
C#
84 lines
2.2 KiB
C#
using System;
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using System.IO;
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using System.Runtime.InteropServices;
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using BizHawk.Common.BufferExtensions;
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using BizHawk.Emulation.Common;
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namespace BizHawk.Emulation.Cores.Nintendo.GBA
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{
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public partial class GBA : IStatable
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{
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public bool BinarySaveStatesPreferred { get { return true; } }
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public void SaveStateText(System.IO.TextWriter writer)
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{
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var temp = SaveStateBinary();
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temp.SaveAsHex(writer);
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// write extra copy of stuff we don't use
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writer.WriteLine("Frame {0}", Frame);
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}
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public void LoadStateText(System.IO.TextReader reader)
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{
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string hex = reader.ReadLine();
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byte[] state = new byte[hex.Length / 2];
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state.ReadFromHex(hex);
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LoadStateBinary(new BinaryReader(new MemoryStream(state)));
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}
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public void SaveStateBinary(System.IO.BinaryWriter writer)
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{
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byte[] data = SaveCoreBinary();
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writer.Write(data.Length);
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writer.Write(data);
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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(System.IO.BinaryReader reader)
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{
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int length = reader.ReadInt32();
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byte[] data = reader.ReadBytes(length);
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LoadCoreBinary(data);
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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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MemoryStream ms = new MemoryStream();
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BinaryWriter bw = new BinaryWriter(ms);
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SaveStateBinary(bw);
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bw.Flush();
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return ms.ToArray();
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}
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private byte[] SaveCoreBinary()
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{
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IntPtr ndata = IntPtr.Zero;
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uint nsize = 0;
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if (!LibMeteor.libmeteor_savestate(ref ndata, ref nsize))
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throw new Exception("libmeteor_savestate() failed!");
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if (ndata == IntPtr.Zero || nsize == 0)
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throw new Exception("libmeteor_savestate() returned bad!");
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byte[] ret = new byte[nsize];
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Marshal.Copy(ndata, ret, 0, (int)nsize);
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LibMeteor.libmeteor_savestate_destroy(ndata);
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return ret;
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}
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private void LoadCoreBinary(byte[] data)
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{
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if (!LibMeteor.libmeteor_loadstate(data, (uint)data.Length))
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throw new Exception("libmeteor_loadstate() failed!");
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}
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}
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}
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