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[CHDFile, Utilities] The great CHD cleanup

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This commit is contained in:
Matt Nadareski
2018-02-16 00:25:28 -08:00
parent 60f3f2d2c9
commit cef409cb92
2 changed files with 136 additions and 143 deletions
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86
SabreTools.Library/Tools/Utilities.cs
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@@ -1040,9 +1040,9 @@ namespace SabreTools.Library.Tools
public static BaseFile GetCHDInfo(string input)
{
FileStream fs = TryOpenRead(input);
BaseFile datItem = GetCHDInfo(fs);
BaseFile chd = GetCHDInfo(fs);
fs.Dispose();
return datItem;
return chd;
}
/// <summary>
@@ -1371,32 +1371,6 @@ namespace SabreTools.Library.Tools
}
}
/// <summary>
/// Get if file has a known CHD header
/// </summary>
/// <param name="input">Filename of possible CHD</param>
/// <returns>True if the file has a valid CHD header, false otherwise</returns>
public static bool HasCHDHeader(string input)
{
FileStream fs = TryOpenRead(input);
bool output = HasCHDHeader(fs);
fs.Dispose();
return output;
}
/// <summary>
/// Get if file is a valid CHD
/// </summary>
/// <param name="input">Filename of possible CHD</param>
/// <returns>True if the file is a valid CHD, false otherwise</returns>
public static bool IsValidCHD(string input)
{
BaseFile baseFile = GetCHDInfo(input);
return baseFile != null
&& (((CHDFile)baseFile).MD5 != null
|| ((CHDFile)baseFile).SHA1 != null);
}
/// <summary>
/// Retrieve a list of files from a directory recursively in proper order
/// </summary>
@@ -1925,7 +1899,7 @@ namespace SabreTools.Library.Tools
long offset = 0, bool keepReadOpen = false, bool chdsAsFiles = true)
{
// We first check to see if it's a CHD
if (chdsAsFiles == false && HasCHDHeader(input))
if (chdsAsFiles == false && GetCHDInfo(input) != null)
{
// Seek to the starting position, if one is set
try
@@ -1952,8 +1926,8 @@ namespace SabreTools.Library.Tools
Globals.Logger.Warning("Stream does not support seeking. Stream position not changed");
}
// Get the Disk from the information
BaseFile disk = GetCHDInfo(input);
// Get the BaseFile from the information
BaseFile chd = GetCHDInfo(input);
// Seek to the beginning of the stream if possible
try
@@ -1974,7 +1948,7 @@ namespace SabreTools.Library.Tools
input.Dispose();
}
return disk;
return chd;
}
BaseFile rom = new BaseFile()
@@ -2130,54 +2104,8 @@ namespace SabreTools.Library.Tools
/// </remarks>
public static BaseFile GetCHDInfo(Stream input)
{
// Get a CHD object to store the data
CHDFile chd = new CHDFile(input);
// Ensure that the header is valid
byte[] hash = chd.GetHashFromHeader();
// Set the proper hash of the Disk to return
if (hash.Length == Constants.MD5Length)
{
chd.MD5 = hash;
return chd;
}
else if (hash.Length == Constants.SHA1Length)
{
chd.SHA1 = hash;
return chd;
}
return null;
}
/// <summary>
/// Get if stream has a known CHD header
/// </summary>
/// <param name="input">Stream of possible CHD</param>
/// <returns>True if the stream has a valid CHD header, false otherwise</returns>
public static bool HasCHDHeader(Stream input)
{
// Get a CHD object to store the data
CHDFile chd = new CHDFile(input);
// Now try to get the header version
uint? version = chd.ValidateHeaderVersion();
return version != null;
}
/// <summary>
/// Get if stream is a valid CHD
/// </summary>
/// <param name="input">Stream of possible CHD</param>
/// <returns>True if the stream is a valid CHD, false otherwise</returns>
public static bool IsValidCHD(Stream input)
{
BaseFile baseFile = GetCHDInfo(input);
return baseFile != null
&& (((CHDFile)baseFile).MD5 != null
|| ((CHDFile)baseFile).SHA1 != null);
return (chd.Version != null && (chd.MD5 != null || chd.SHA1 != null) ? chd : null);
}
#endregion