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BizHawk
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snes-enable savestates. dont get your hopes up, its a bit bloated and weird, and we still need to asses the bsnesariffic savestate synchronization issues. but, it works.

This commit is contained in:
zeromus 2012-09-04 08:21:01 +00:00
parent e51b79e2fa
commit ea6c0b9378
1 changed files with 55 additions and 6 deletions
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61
BizHawk.Emulation/Consoles/Nintendo/SNES/LibsnesCore.cs
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@ -69,8 +69,19 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
[DllImport("snes.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern uint snes_get_memory_size(SNES_MEMORY id);
[DllImport("snes.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint="snes_get_memory_data")]
[DllImport("snes.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr snes_get_memory_data(SNES_MEMORY id);
[DllImport("snes.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int snes_serialize_size();
[return: MarshalAs(UnmanagedType.U1)]
[DllImport("snes.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern bool snes_serialize(IntPtr data, int size);
[return: MarshalAs(UnmanagedType.U1)]
[DllImport("snes.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern bool snes_unserialize(IntPtr data, int size);
public enum SNES_MEMORY : uint
{
@ -136,6 +147,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
{
LibsnesDll.snes_term();
_gc_snes_video_refresh.Free();
_gc_snes_input_poll.Free();
_gc_snes_input_state.Free();
_gc_snes_audio_sample.Free();
}
@ -284,6 +297,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
public static byte[] snes_get_memory_data_read(LibsnesDll.SNES_MEMORY id)
{
var size = (int)LibsnesDll.snes_get_memory_size(id);
if (size == 0) return new byte[0];
var data = LibsnesDll.snes_get_memory_data(id);
var ret = new byte[size];
Marshal.Copy(data,ret,0,size);
@ -293,16 +307,51 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
public void StoreSaveRam(byte[] data)
{
var size = (int)LibsnesDll.snes_get_memory_size(LibsnesDll.SNES_MEMORY.CARTRIDGE_RAM);
if (size == 0) return;
var emudata = LibsnesDll.snes_get_memory_data(LibsnesDll.SNES_MEMORY.CARTRIDGE_RAM);
Marshal.Copy(data, 0, emudata, size);
}
public void ResetFrameCounter() { }
public void SaveStateText(TextWriter writer) { }
public void LoadStateText(TextReader reader) { }
public void SaveStateBinary(BinaryWriter writer) { }
public void LoadStateBinary(BinaryReader reader) { }
public byte[] SaveStateBinary() { return new byte[0]; }
public void SaveStateText(TextWriter writer)
{
var temp = SaveStateBinary();
temp.SaveAsHex(writer);
}
public void LoadStateText(TextReader reader)
{
string hex = reader.ReadLine();
byte[] state = new byte[hex.Length / 2];
state.ReadFromHex(hex);
LoadStateBinary(new BinaryReader(new MemoryStream(state)));
}
public void SaveStateBinary(BinaryWriter writer)
{
int size = LibsnesDll.snes_serialize_size();
byte[] buf = new byte[size];
fixed (byte* pbuf = &buf[0])
LibsnesDll.snes_serialize(new IntPtr(pbuf), size);
writer.Write(buf);
writer.Flush();
}
public void LoadStateBinary(BinaryReader reader)
{
int size = LibsnesDll.snes_serialize_size();
var ms = new MemoryStream();
reader.BaseStream.CopyTo(ms);
var buf = ms.ToArray();
fixed (byte* pbuf = &buf[0])
LibsnesDll.snes_unserialize(new IntPtr(pbuf), size);
}
public byte[] SaveStateBinary()
{
MemoryStream ms = new MemoryStream();
BinaryWriter bw = new BinaryWriter(ms);
SaveStateBinary(bw);
bw.Flush();
return ms.ToArray();
}
// Arbitrary extensible core comm mechanism
CoreInputComm IEmulator.CoreInputComm { get; set; }