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Fix CHD parsing, threading, version

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This commit is contained in:
Matt Nadareski
2020-07-19 21:59:34 -07:00
parent 4596c7b299
commit ce38911d66
10 changed files with 77 additions and 62 deletions
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35
SabreTools.Library/FileTypes/CHDFile.cs
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@@ -42,21 +42,28 @@ namespace SabreTools.Library.FileTypes
/// <param name="chdstream">Stream representing the CHD file</param>
public static CHDFile Create(Stream chdstream)
{
// Read the standard CHD headers
(char[] tag, uint length, uint version) = GetHeaderValues(chdstream);
chdstream.Seek(-16, SeekOrigin.Current); // Seek back to start
try
{
// Read the standard CHD headers
(char[] tag, uint length, uint version) = GetHeaderValues(chdstream);
chdstream.Seek(-16, SeekOrigin.Current); // Seek back to start
// Validate that this is actually a valid CHD
uint validatedVersion = ValidateHeader(tag, length, version);
if (validatedVersion == 0)
// Validate that this is actually a valid CHD
uint validatedVersion = ValidateHeader(tag, length, version);
if (validatedVersion == 0)
return null;
// Read and retrun the current CHD
CHDFile generated = ReadAsVersion(chdstream, version);
if (generated != null)
generated.Type = FileType.CHD;
return generated;
}
catch
{
return null;
// Read and retrun the current CHD
CHDFile generated = ReadAsVersion(chdstream, version);
if (generated != null)
generated.Type = FileType.CHD;
return generated;
}
}
#endregion
@@ -85,7 +92,7 @@ namespace SabreTools.Library.FileTypes
using (BinaryReader br = new BinaryReader(stream, Encoding.Default, true))
{
parsedTag = br.ReadCharsBigEndian(8);
parsedTag = br.ReadChars(8);
parsedLength = br.ReadUInt32BigEndian();
parsedVersion = br.ReadUInt32BigEndian();
}