public unsafe void Save(string path, byte[] src)
{
if (path == null)
{
path = this._ROMPath;
}
ushort num = (ushort)510;
if (this._ROMType != SNES.ROMFile.ROMTypes.LoROM)
{
if (this._ROMType != SNES.ROMFile.ROMTypes.SuperFX)
{
goto label_11;
}
}
for (int index = 0; index < 32732; ++index)
{
num += (ushort)src[index];
}
for (int index = 32736; index < src.Length; ++index)
num += (ushort)src[index];
fixed(byte *numPtr = &src[32732])
* (int *)numPtr = (int)num << 16 | (int)num ^ (int)ushort.MaxValue;
label_11:
try
{
FileStream fileStream = new FileStream(path, FileMode.Create, FileAccess.Write);
if ((int)this._HasHeader != 0)
{
fileStream.Write(this._HeaderBuf, 0, 512);
}
fileStream.Write(src, 0, src.Length);
fileStream.Close();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
this._LastError = SNES.ROMFile.LastErrors.CouldntOpenROMForWriting;
throw new SNES.ROMFile.UnableToWriteException();
}
this._ROMBuf[0].CopyFrom(src, 0, src.Length);
}
public unsafe bool Open(string path)
{
if (!File.Exists(path))
{
this._LastError = SNES.ROMFile.LastErrors.CouldntOpenROMForReading;
return(false);
}
else
{
try
{
byte[] source = File.ReadAllBytes(path);
int num1 = 0;
int num2 = 0;
switch (source.Length & (int)short.MaxValue)
{
case 0:
num2 += 3;
break;
case 512:
num1 += 2;
break;
}
uint num3 = 0U;
for (int index = 0; index < 512; ++index)
{
num3 += (uint)source[index];
}
if (num3 < 2500U)
{
num1 += 2;
}
int[] numArray = new int[4];
int num4 = 0;
fixed(byte *numPtr = source)
{
int num5 = numArray[0] = this.ROMTypeScore(numPtr + 32704);
if (num5 < (numArray[1] = this.ROMTypeScore(numPtr + 65472)))
{
num5 = numArray[1];
num4 = 1;
}
if (num5 < (numArray[2] = this.ROMTypeScore(numPtr + 33216)))
{
num5 = numArray[2];
num4 = 2;
}
if (num5 < (numArray[3] = this.ROMTypeScore(numPtr + 65984)))
{
num4 = 3;
}
}
if (num4 >= 2)
{
num1 += 2;
}
this._HasHeader = num1 > num2 ? (ushort)512 : (ushort)0;
if ((int)this._HasHeader != 0)
{
Array.Copy((Array)source, (Array)this._HeaderBuf, 512);
}
this._ROMType = numArray[(int)this._HasHeader == 0 ? 1 : 3] > numArray[(int)this._HasHeader == 0 ? 0 : 2] ? SNES.ROMFile.ROMTypes.HiROM : SNES.ROMFile.ROMTypes.LoROM;
uint num6 = (uint)(1 << (int)source[(this.AddressSNEStoPC(65495U) + (uint)this._HasHeader)] + 10);
if (num6 < 524288U || 4194304U < num6)
{
throw new SNES.ROMFile.InvalidROMException();
}
uint num7 = (uint)source.Length - (uint)this._HasHeader;
if (num7 > num6)
{
throw new SNES.ROMFile.InvalidROMException();
}
this._ROMBuf = new VariableByte[num6];
this.ROM[0].CopyFrom(source, (int)this._HasHeader, (int)num7);
if (this._ROMType == SNES.ROMFile.ROMTypes.LoROM)
{
if (((int)this.ROM[32726].u8 & 240) == 16)
{
this._ROMType = SNES.ROMFile.ROMTypes.SuperFX;
if (num6 > 2097152U)
{
throw new SNES.ROMFile.InvalidROMException();
}
}
}
}
catch (SNES.ROMFile.InvalidROMException ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
this._LastError = SNES.ROMFile.LastErrors.InvalidROM;
return(false);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
this._LastError = SNES.ROMFile.LastErrors.Exception;
return(false);
}
this._ROMPath = path;
return(true);
}
}
