private static byte[] ConvertDrsItem(
DrsItem item,
uint type,
int oldWidth,
int oldHeight,
int newWidth,
int newHeight)
{
switch (type)
{
case 1651076705:
return(GuiTablePatcher.UpdateGuiTable(item.Data, item.Id, oldWidth, oldHeight, newWidth, newHeight));
case 1936486432:
return(SlpStretcher.Enlarge(item.Id, item.Data, oldWidth, oldHeight, newWidth, newHeight));
default:
return(item.Data);
}
}
public static void Patch(
Stream oldDrs,
Stream newDrs,
int oldWidth,
int oldHeight,
int newWidth,
int newHeight)
{
BinaryReader binaryReader = new BinaryReader(oldDrs);
BinaryWriter binaryWriter = new BinaryWriter(newDrs);
bool flag = false;
while (true)
{
byte num = binaryReader.ReadByte();
binaryWriter.Write(num);
if (num == (byte)26)
{
flag = true;
}
else if (num > (byte)0 & flag)
{
break;
}
}
binaryWriter.Write(binaryReader.ReadBytes(3));
binaryWriter.Write(binaryReader.ReadBytes(12));
uint num1 = binaryReader.ReadUInt32();
binaryWriter.Write(num1);
uint num2 = binaryReader.ReadUInt32();
binaryWriter.Write(num2);
DrsTable[] drsTableArray = new DrsTable[(int)num1];
for (int index = 0; (long)index < (long)num1; ++index)
{
drsTableArray[index] = new DrsTable();
}
foreach (DrsTable drsTable in drsTableArray)
{
drsTable.Type = binaryReader.ReadUInt32();
drsTable.Start = binaryReader.ReadUInt32();
uint num3 = binaryReader.ReadUInt32();
DrsItem[] drsItemArray = new DrsItem[(int)num3];
for (int index = 0; (long)index < (long)num3; ++index)
{
drsItemArray[index] = new DrsItem();
}
drsTable.Items = (IEnumerable <DrsItem>)drsItemArray;
}
foreach (DrsTable drsTable in drsTableArray)
{
Trace.Assert(oldDrs.Position == (long)drsTable.Start);
foreach (DrsItem drsItem in drsTable.Items)
{
drsItem.Id = binaryReader.ReadUInt32();
drsItem.Start = binaryReader.ReadUInt32();
drsItem.Size = binaryReader.ReadUInt32();
}
}
foreach (DrsItem drsItem in ((IEnumerable <DrsTable>)drsTableArray).SelectMany <DrsTable, DrsItem>((Func <DrsTable, IEnumerable <DrsItem> >)(table => table.Items)))
{
Trace.Assert(oldDrs.Position == (long)drsItem.Start);
drsItem.Data = binaryReader.ReadBytes((int)drsItem.Size);
}
binaryReader.Close();
uint num4 = num2;
List <DrsTable> source = new List <DrsTable>(drsTableArray.Length);
foreach (DrsTable drsTable1 in drsTableArray)
{
List <DrsItem> drsItemList = new List <DrsItem>();
DrsTable drsTable2 = new DrsTable()
{
Start = drsTable1.Start,
Type = drsTable1.Type,
Items = (IEnumerable <DrsItem>)drsItemList
};
foreach (DrsItem drsItem1 in drsTable1.Items)
{
DrsItem drsItem2 = new DrsItem()
{
Id = drsItem1.Id,
Start = num4,
Data = DrsPatcher.ConvertDrsItem(drsItem1, drsTable1.Type, oldWidth, oldHeight, newWidth, newHeight)
};
drsItem2.Size = (uint)drsItem2.Data.Length;
num4 += drsItem2.Size;
drsItemList.Add(drsItem2);
}
source.Add(drsTable2);
}
foreach (DrsTable drsTable in source)
{
binaryWriter.Write(drsTable.Type);
binaryWriter.Write(drsTable.Start);
binaryWriter.Write(drsTable.Items.Count <DrsItem>());
}
foreach (DrsTable drsTable in source)
{
Trace.Assert(newDrs.Position == (long)drsTable.Start);
foreach (DrsItem drsItem in drsTable.Items)
{
binaryWriter.Write(drsItem.Id);
binaryWriter.Write(drsItem.Start);
binaryWriter.Write(drsItem.Size);
}
}
foreach (DrsItem drsItem in source.SelectMany <DrsTable, DrsItem>((Func <DrsTable, IEnumerable <DrsItem> >)(outTable => outTable.Items)))
{
Trace.Assert(newDrs.Position == (long)drsItem.Start);
binaryWriter.Write(drsItem.Data);
}
binaryWriter.Close();
}