public override void CalculateHashes(byte[] rom, IHashWorkManager worker, float startProgress, float endProgress)
{
iNesHeader header = null;
if (rom.Length > 0x10)
{
header = new iNesHeader(rom, 0);
}
if (SNES.HasExternalHeader(rom)) // Headered
{
worker.AddHashes(rom, 0, rom.Length, () => worker.AbortPending, RomHash.AllHashAlgorithms, HashFlags.FileHash);
// Calculate headerless hashes
int ROMSize = rom.Length - SNES.ExternalHeaderSize;
ROMSize = Math.Min(ROMSize, rom.Length - SNES.ExternalHeaderSize);
worker.AddHashes(rom, SNES.ExternalHeaderSize, ROMSize, () => worker.AbortPending, RomHash.AllHashAlgorithms, HashFlags.RomHash);
}
else
{
// Unheadered (file hash IS rom hash)
worker.AddHashes(rom, 0, rom.Length, () => worker.AbortPending, RomHash.AllHashAlgorithms, HashFlags.FileHash, HashFlags.RomHash);
}
}
internal override void InitRomData(RomData data, byte[] rom)
{
base.InitRomData(data, rom);
int romOffset = SNES.HasExternalHeader(rom) ? SNES.ExternalHeaderSize : 0;
if (rom.Length - romOffset >= SnesHeader.MinimumRomSize)
{
SnesHeader snesheader = new SnesHeader(rom, romOffset);
data.MiscData.Add(DataTags.DecodedHeader, snesheader);
}
}
protected override void AddPlatformExtendedData(RomExDataBuilder builder, byte[] rom, RomData data)
{
var checksum = SNES.CalculateChecksum(rom);
int romOffset = SNES.HasExternalHeader(rom) ? SNES.ExternalHeaderSize : 0;
string header = RomExDataBuilder.HeaderCat;
object o_snesheader;
SnesHeader snesheader;
if (data.MiscData.TryGetValue(DataTags.DecodedHeader, out o_snesheader))
{
//if (snesheader != null) {
snesheader = o_snesheader as SnesHeader;
builder.AddData(RomExDataBuilder.GeneralCat, "Checksum valid", (checksum == snesheader.Checksum) ? "Yes" : "No");
builder.AddData(header, "Mapping", snesheader.Mapping.ToString());
//builder.AddData(header,"Name", GetAscii
}
}
public override bool?HasHeader(byte[] rom)
{
return(SNES.HasExternalHeader(rom));
}
public override string GetRomFormatName(byte[] rom)
{
return(SNES.HasExternalHeader(rom) ? "Super Magicom" : "SNES rom image");
}
public override int GetRomSize(byte[] rom)
{
return(SNES.HasExternalHeader(rom) ? rom.Length - SNES.ExternalHeaderSize : rom.Length);
}