private static IEnumerable <IFdsBlock> DumpFast(FamicomDumperConnection dumper, bool dumpHiddenFiles = false, bool printDiskInfo = false)
{
Console.Write($"Reading disk... ");
var blocks = dumper.ReadFdsBlocks().ToArray();
if (blocks.Length == 0)
{
throw new IOException("Invalid disk info block");
}
if (!blocks[0].IsValid)
{
throw new IOException($"Invalid disk info block type");
}
if (!blocks[0].CrcOk)
{
throw new IOException($"Invalid CRC on disk info block");
}
if (printDiskInfo)
{
PrintDiskHeaderInfo(blocks[0] as FdsBlockDiskInfo);
}
if (blocks.Length == 1)
{
throw new IOException("Invalid file amount block");
}
if (!blocks[1].IsValid)
{
throw new IOException($"Invalid file amount block type");
}
if (!blocks[1].CrcOk)
{
throw new IOException($"Invalid CRC on file amount block");
}
Console.WriteLine($"Done");
var fileAmount = (blocks[1] as FdsBlockFileAmount).FileAmount;
if (printDiskInfo)
{
Console.WriteLine($"Number of non-hidden files: {fileAmount}");
}
// Check files and print info
int validBlocks = 2 + fileAmount * 2;
for (int blockNumber = 2; blockNumber < (dumpHiddenFiles ? blocks.Length : (2 + fileAmount * 2)); blockNumber++)
{
var block = blocks[blockNumber];
if (!block.IsValid)
{
if (blocks.Length < 2 + fileAmount * 2)
{
throw new IOException($"Invalid block #{blockNumber} (file #{(blockNumber - 2) / 2}) type");
}
else
{
if (printDiskInfo)
{
Console.WriteLine($"Invalid block #{blockNumber}, it's not hidden file, aboritng");
}
validBlocks = blockNumber;
break;
}
}
if (!block.CrcOk)
{
if (blocks.Length < 2 + fileAmount * 2)
{
throw new IOException($"Invalid CRC on block #{blockNumber} (file #{(blockNumber - 2) / 2})");
}
else
{
if (printDiskInfo)
{
Console.WriteLine($"Invalid CRC on block #{blockNumber}, it's not hidden file, aboritng");
}
validBlocks = blockNumber;
break;
}
}
if ((blockNumber % 2) == 0)
{
if (printDiskInfo)
{
Console.WriteLine($"File #{(blockNumber - 2) / 2}/{fileAmount}:");
PrintFileHeaderInfo(block as FdsBlockFileHeader);
}
}
}
if (blocks.Length < 2 + fileAmount * 2)
{
throw new IOException($"Only {(blocks.Length - 2) / 2} of {fileAmount} valid files received");
}
if (dumpHiddenFiles && printDiskInfo)
{
Console.WriteLine($"Number of hidden files: {(blocks.Length - 2) / 2 - fileAmount}");
}
return(blocks.Take(validBlocks));
}
private static IEnumerable <IFdsBlock> DumpSlow(FamicomDumperConnection dumper, bool dumpHiddenFiles = false, bool printDiskInfo = false)
{
var blocks = new List <IFdsBlock>();
byte blockNumber = 0;
while (true)
{
switch (blockNumber)
{
case 0:
Console.Write("Reading disk info block... ");
break;
case 1:
Console.Write("Reading file amount block... ");
break;
default:
if ((blockNumber % 2) == 0)
{
Console.Write($"Reading file #{(blockNumber - 2) / 2}/{(blocks[1] as FdsBlockFileAmount).FileAmount} header block... ");
}
else
{
Console.Write($"Reading file #{(blockNumber - 2) / 2}/{(blocks[1] as FdsBlockFileAmount).FileAmount} data block... ");
}
break;
}
var fdsData = dumper.ReadFdsBlocks(blockNumber, 1);
if (fdsData.Length == 0)
{
if (blocks.Count > 2 && blocks.Count >= 2 + (blocks[1] as FdsBlockFileAmount).FileAmount * 2)
{
Console.WriteLine("Invalid block, it's not hidden file, aboritng");
break;
}
throw new IOException($"Invalid block #{blockNumber} (file #{(blockNumber - 2) / 2})");
}
var block = fdsData[0];
if (!block.IsValid)
{
switch (blockNumber)
{
case 0:
throw new IOException($"Invalid disk info block");
case 1:
throw new IOException($"Invalid file amount block");
}
if (blocks.Count >= 2 + (blocks[1] as FdsBlockFileAmount).FileAmount * 2)
{
Console.WriteLine("Invalid block, it's not hidden file, abortitng");
break;
}
else
{
// Fatal error if bad block ID on non-hidden file
throw new IOException($"Invalid block #{blockNumber} (file #{(blockNumber - 2) / 2}) type");
}
}
if (!block.CrcOk)
{
switch (blockNumber)
{
case 0:
throw new IOException($"Invalid CRC on disk info block");
case 1:
throw new IOException($"Invalid CRC on file amount block");
}
if (blocks.Count < 2 + (blocks[1] as FdsBlockFileAmount).FileAmount * 2)
{
// Fatal error if bad CRC on non-hidden file
throw new IOException($"Invalid CRC on block #{blockNumber} (file #{(blockNumber - 2) / 2})");
}
else
{
Console.WriteLine("Invalid CRC, it's not hidden file, abortitng");
break;
}
}
blocks.AddRange(fdsData);
Console.WriteLine($"OK");
// Some info
if (printDiskInfo)
{
switch (blockNumber)
{
case 0:
PrintDiskHeaderInfo(block as FdsBlockDiskInfo);
break;
case 1:
Console.WriteLine($"Number of non-hidden files: {(block as FdsBlockFileAmount).FileAmount}");
break;
default:
if ((blockNumber % 2) == 0)
{
Console.WriteLine($"File #{(blockNumber - 2) / 2}:");
PrintFileHeaderInfo(block as FdsBlockFileHeader);
}
break;
}
}
// Abort if end of head meet
if (block.EndOfHeadMeet)
{
Console.WriteLine("End of head meet, aborting");
break;
}
// Abort if last file dumped
if (!dumpHiddenFiles && (blocks.Count >= 2) && (blocks.Count >= 2 + (blocks[1] as FdsBlockFileAmount).FileAmount * 2))
{
break;
}
blockNumber++;
}
if (dumpHiddenFiles)
{
Console.WriteLine($"Number of hidden files: {(blocks.Count - 2) / 2 - (blocks[1] as FdsBlockFileAmount).FileAmount}");
}
return(blocks);
}
