private void AddHeaderInfo(TapHeader header, List <ReportLine> report)
{
report.Add(new ReportLine(string.Format("Header Magic: {0}", header.Magic), ReportLineStatus.Info));
report.Add(new ReportLine(string.Format("Version: {0}", header.Version), ReportLineStatus.Info));
report.Add(new ReportLine(string.Format("Platform: {0}", header.Platform), ReportLineStatus.Info));
report.Add(new ReportLine(string.Format("Video Standard: {0}", header.VideoStandard), ReportLineStatus.Info));
report.Add(new ReportLine(string.Format("Data Length: {0}", header.DataLength), ReportLineStatus.Info));
}
private void Fix(List <ReportLine> report, string fullFileName, TapHeader header)
{
report.Add(new ReportLine("Attempting to fix TAP issues...", ReportLineStatus.Info));
string backupFileName = Path.ChangeExtension(fullFileName, ".tap.bak");
FileInfo fi = new FileInfo(backupFileName);
if (fi.Exists)
{
report.Add(new ReportLine("Backup file already exists, skipping fix!", ReportLineStatus.Error));
return;
}
try
{
File.Copy(fullFileName, backupFileName);
}
catch (Exception e)
{
report.Add(new ReportLine(string.Format("Unable to create backup: {0}", e.Message), ReportLineStatus.Error));
return;
}
try
{
using (FileStream fs = File.OpenWrite(fullFileName))
{
fs.Seek(0, SeekOrigin.Begin);
BinaryWriter bw = new BinaryWriter(fs);
header.WriteHeader(bw);
}
}
catch (Exception e)
{
report.Add(new ReportLine(string.Format("Unable to fix header: {0}", e.Message), ReportLineStatus.Error));
return;
}
report.Add(new ReportLine(string.Format("TAP {0} fixed", fullFileName), ReportLineStatus.Info));
}
internal List <ReportLine> Check(string fullFileName, TapCheckerOptions opts)
{
List <ReportLine> report = new List <ReportLine>();
List <ReportLine> pauses = new List <ReportLine>();
string fileName = Path.GetFileName(fullFileName);
report.Add(new ReportLine(String.Format("TAP file: {0}", fileName), ReportLineStatus.Info));
FileInfo fi = new FileInfo(fullFileName);
if (!fi.Exists)
{
report.Add(new ReportLine("File not found", ReportLineStatus.Error));
return(report);
}
TapHeader header = new TapHeader();
try
{
using (MemoryStream ms = new MemoryStream(File.ReadAllBytes(fullFileName)))
{
BinaryReader br = new BinaryReader(ms);
header.ReadHeader(br);
if (opts.LongPauseDetail && header.Version != TapFormat.VERSION_0_INITIAL)
{
UInt32 ticksDiv = (UInt32)(header.VideoStandard == TapVideoStandard.PAL ? 985248 : 1022730);
while (ms.Position < ms.Length)
{
if (br.ReadByte() != 0)
{
continue;
}
byte data = br.ReadByte();
UInt32 pause = data;
data = br.ReadByte();
pause |= (UInt32)(data << 8);
data = br.ReadByte();
pause |= (UInt32)(data << 16);
pauses.Add(new ReportLine(String.Format("Pause at: {0} for {1} (~ {2:F2}s)", ms.Position - 4, pause, (double)pause / ticksDiv), ReportLineStatus.Info));
}
}
}
}
catch (Exception e)
{
report.Add(new ReportLine(string.Format("Error reading file: {0}", e.Message), ReportLineStatus.Error));
return(report);
}
AddHeaderInfo(header, report);
UInt32 computedLength = (UInt32)fi.Length - TapHeader.HeaderSize;
if ((header.Magic == TapHeaderMagic.C64_Magic && header.Platform != TapPlatform.C64) || (header.Magic == TapHeaderMagic.C16_Magic && header.Platform != TapPlatform.C16))
{
report.Add(new ReportLine("Header Magic and Platform do not match!", ReportLineStatus.Error));
}
else
{
report.Add(new ReportLine("Header Magic and Platform match", ReportLineStatus.Info));
}
report.AddRange(pauses);
if (header.DataLength != computedLength)
{
report.Add(new ReportLine("TAP Header Data Length INCORRECT!", ReportLineStatus.Warning));
report.Add(new ReportLine(string.Format("\tHeader reports: {0}", header.DataLength), ReportLineStatus.Warning));
report.Add(new ReportLine(string.Format("\tComputed Length: {0}", computedLength), ReportLineStatus.Warning));
report.Add(new ReportLine(string.Format("\tFile is: {0}", computedLength > header.DataLength ? "Longer" : "Shorter"), ReportLineStatus.Warning));
header.DataLength = computedLength;
if (opts.Fix)
{
Fix(report, fullFileName, header);
}
}
return(report);
}
