public ROMFile(string fileName, List <byte[]> DMAData)
{
//Convert byte[] to dma
List <DMATableEntry> dmaEntries = new List <DMATableEntry>();
uint start = 0;
foreach (byte[] data in DMAData)
{
uint end = start + (uint)data.Length;
DMATableEntry dma = new DMATableEntry(start, start, end, 0x0, data);
dmaEntries.Add(dma);
start = end;
}
DMATable = dmaEntries;
IsDMALoaded = true;
this.Filename = fileName;
//DmaToRom
DMAToRom();
//Fix CRC
FixCRC();
}
private void RomToDMA()
{
//Transfer data from ROM to DMA Tables
if (Info.DMATableOffset == 0x0)
{
IsDMALoaded = false;
return;
}
IsCompressed = false;
DMATable.Clear();
int CurrentPos = (int)Info.DMATableOffset;
try
{
while (CurrentPos < Size - 16)
{
uint VStart = ToolSettings.ReadUInt(_romData, CurrentPos, ROMEndianness);
uint PStart = ToolSettings.ReadUInt(_romData, CurrentPos + 4, ROMEndianness);
uint PEnd = ToolSettings.ReadUInt(_romData, CurrentPos + 8, ROMEndianness);
uint CompFlag = ToolSettings.ReadUInt(_romData, CurrentPos + 12, ROMEndianness);
//Create the actual data
byte[] dmaBytes = new byte[PEnd - PStart];
Array.Copy(_romData, PStart, dmaBytes, 0, dmaBytes.Length);
DMATableEntry entry = new DMATableEntry(VStart, PStart, PEnd, CompFlag, dmaBytes);
if ((entry.PStart == 0x00) && (entry.PEnd == 0x00))
{
break;
}
if (entry.CompFlag == 1)
{
IsCompressed = true;
}
DMATable.Add(entry);
CurrentPos += 16;
}
IsDMALoaded = true;
}
catch
{
IsDMALoaded = false;
}
//if (IsCompressed)
//{
// if (DecompressDMA())
// {
// DMAToRom();
// FixCRC();
// }
//}
}
private bool DecompressDMA()
{
if (!IsDMALoaded)
{
return(false);
}
for (int i = 0; i < DMATable.Count; i++)
{
DMATableEntry dma = DMATable[i];
if (dma.CompFlag == 0x1)
{
//compressed
//Decompress here
byte[] newDMAData;
if (ToolSettings.DecompressMIO0(dma.DMAData, out newDMAData))
{
dma.DMAData = newDMAData;
dma.PEnd = dma.VStart + (uint)newDMAData.Length;
dma.PStart = dma.VStart;
dma.CompFlag = 0x0;
}
else
{
//Catastrophic failure, just quit out
return(false);
}
}
else
{
//uncompressed
dma.PEnd = dma.VStart + (dma.PEnd - dma.PStart);
dma.PStart = dma.VStart;
}
DMATable[i] = dma;
}
return(true);
}
