public static ZtFile Create(string unmodifiedFile, string modifiedFile)
{
byte[] unmodifiedBytes = File.ReadAllBytes(unmodifiedFile);
byte[] modifiedBytes = File.ReadAllBytes(modifiedFile);
return(ZtFile.Create(unmodifiedBytes, modifiedBytes));
}
public static ZtFile FromFile(string fileName)
{
var zt = new ZtFile
{
FileName = fileName
};
FileStream filestream = null;
try
{
filestream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
using (BinaryReader file = new BinaryReader(filestream))
{
filestream = null;
zt.TargetName = Encoding.ASCII.GetString(file.ReadBytes(13)).TrimEnd('\0');
int count = file.ReadUInt16();
for (int i = 0; i < count; i++)
{
int offset = file.ReadInt32();
byte length = file.ReadByte();
byte[] bytes = file.ReadBytes(length);
zt.Patches.Add(offset, bytes);
}
if (file.BaseStream.Position != file.BaseStream.Length)
{
byte[] commentBytes = file.ReadBytes((int)file.BaseStream.Length - (int)file.BaseStream.Position);
zt.Comment = Encoding.UTF8.GetString(commentBytes);
}
zt.Compact();
}
}
finally
{
if (filestream != null)
{
filestream.Dispose();
}
}
return(zt);
}
public static ZtFile Create(byte[] unmodifiedBytes, byte[] modifiedBytes)
{
if (unmodifiedBytes == null)
{
throw new ArgumentNullException(nameof(unmodifiedBytes));
}
if (modifiedBytes == null)
{
throw new ArgumentNullException(nameof(modifiedBytes));
}
if (unmodifiedBytes.Length != modifiedBytes.Length)
{
throw new InvalidOperationException();
}
ZtFile zt = new ZtFile();
for (int offset = 0; offset < unmodifiedBytes.Length; offset++)
{
int start = offset;
int count = 0;
while (offset < unmodifiedBytes.Length && unmodifiedBytes[offset] != modifiedBytes[offset])
{
offset++;
count++;
}
if (count != 0)
{
byte[] bytes = new byte[count];
Array.Copy(modifiedBytes, start, bytes, 0, count);
zt.Add(start, bytes);
}
}
return(zt);
}
private void OpenPatchButton_Click(object sender, RoutedEventArgs e)
{
string filename = this.GetOpenFileName();
if (string.IsNullOrEmpty(filename))
{
return;
}
this.RunBusyAction(disp =>
{
try
{
this.PatchFile = ZtFile.FromFile(filename);
disp(() => this.UpdateDataContext());
}
catch (Exception ex)
{
disp(() => Xceed.Wpf.Toolkit.MessageBox.Show(this, ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error));
}
});
}
public static ZtFile FromFile(string fileName)
{
var zt = new ZtFile();
zt.FileName = fileName;
FileStream filestream = null;
try
{
filestream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
using (BinaryReader file = new BinaryReader(filestream))
{
filestream = null;
zt.TargetName = Encoding.ASCII.GetString(file.ReadBytes(13)).TrimEnd('\0');
int count = file.ReadUInt16();
for (int i = 0; i < count; i++)
{
int offset = file.ReadInt32();
byte length = file.ReadByte();
byte[] bytes = file.ReadBytes(length);
zt.patches.Add(offset, bytes);
}
if (file.BaseStream.Position != file.BaseStream.Length)
{
byte[] commentBytes = file.ReadBytes((int)file.BaseStream.Length - (int)file.BaseStream.Position);
zt.Comment = Encoding.UTF8.GetString(commentBytes);
}
zt.Compact();
}
}
finally
{
if (filestream != null)
{
filestream.Dispose();
}
}
return zt;
}
public static ZtFile Create(byte[] unmodifiedBytes, byte[] modifiedBytes)
{
if (unmodifiedBytes == null)
{
throw new ArgumentNullException("unmodifiedBytes");
}
if (modifiedBytes == null)
{
throw new ArgumentNullException("modifiedBytes");
}
if (unmodifiedBytes.Length != modifiedBytes.Length)
{
throw new InvalidOperationException();
}
ZtFile zt = new ZtFile();
for (int offset = 0; offset < unmodifiedBytes.Length; offset++)
{
int start = offset;
int count = 0;
while (offset < unmodifiedBytes.Length && unmodifiedBytes[offset] != modifiedBytes[offset])
{
offset++;
count++;
}
if (count != 0)
{
byte[] bytes = new byte[count];
Array.Copy(modifiedBytes, start, bytes, 0, count);
zt.Add(start, bytes);
}
}
return zt;
}
