96 lines
2.4 KiB
C#
96 lines
2.4 KiB
C#
using System;
|
|
using System.IO;
|
|
|
|
using BizHawk.Emulation.Common;
|
|
|
|
namespace BizHawk.Emulation.Cores.Nintendo.GBA
|
|
{
|
|
public partial class MGBAHawk : IStatable
|
|
{
|
|
private byte[] _savebuff = new byte[0];
|
|
private byte[] _savebuff2 = new byte[13];
|
|
|
|
public bool BinarySaveStatesPreferred => true;
|
|
|
|
public void SaveStateText(TextWriter writer)
|
|
{
|
|
var tmp = SaveStateBinary();
|
|
BizHawk.Common.BufferExtensions.BufferExtensions.SaveAsHexFast(tmp, writer);
|
|
}
|
|
public void LoadStateText(TextReader reader)
|
|
{
|
|
string hex = reader.ReadLine();
|
|
byte[] state = new byte[hex.Length / 2];
|
|
BizHawk.Common.BufferExtensions.BufferExtensions.ReadFromHexFast(state, hex);
|
|
LoadStateBinary(new BinaryReader(new MemoryStream(state)));
|
|
}
|
|
|
|
private void StartSaveStateBinaryInternal()
|
|
{
|
|
IntPtr p = IntPtr.Zero;
|
|
int size = 0;
|
|
if (!LibmGBA.BizStartGetState(_core, ref p, ref size))
|
|
{
|
|
throw new InvalidOperationException("Core failed to save!");
|
|
}
|
|
|
|
if (size != _savebuff.Length)
|
|
{
|
|
_savebuff = new byte[size];
|
|
_savebuff2 = new byte[size + 13];
|
|
}
|
|
|
|
LibmGBA.BizFinishGetState(p, _savebuff, size);
|
|
}
|
|
|
|
private void FinishSaveStateBinaryInternal(BinaryWriter writer)
|
|
{
|
|
writer.Write(_savebuff.Length);
|
|
writer.Write(_savebuff, 0, _savebuff.Length);
|
|
|
|
// other variables
|
|
writer.Write(IsLagFrame);
|
|
writer.Write(LagCount);
|
|
writer.Write(Frame);
|
|
}
|
|
|
|
public void SaveStateBinary(BinaryWriter writer)
|
|
{
|
|
StartSaveStateBinaryInternal();
|
|
FinishSaveStateBinaryInternal(writer);
|
|
}
|
|
|
|
public void LoadStateBinary(BinaryReader reader)
|
|
{
|
|
int length = reader.ReadInt32();
|
|
if (length != _savebuff.Length)
|
|
{
|
|
_savebuff = new byte[length];
|
|
_savebuff2 = new byte[length + 13];
|
|
}
|
|
|
|
reader.Read(_savebuff, 0, length);
|
|
if (!LibmGBA.BizPutState(_core, _savebuff, length))
|
|
{
|
|
throw new InvalidOperationException("Core rejected the savestate!");
|
|
}
|
|
|
|
// other variables
|
|
IsLagFrame = reader.ReadBoolean();
|
|
LagCount = reader.ReadInt32();
|
|
Frame = reader.ReadInt32();
|
|
}
|
|
|
|
public byte[] SaveStateBinary()
|
|
{
|
|
StartSaveStateBinaryInternal();
|
|
var ms = new MemoryStream(_savebuff2, true);
|
|
var bw = new BinaryWriter(ms);
|
|
FinishSaveStateBinaryInternal(bw);
|
|
bw.Flush();
|
|
ms.Close();
|
|
return _savebuff2;
|
|
}
|
|
}
|
|
}
|