private static byte[] ConvertDrsItem(DrsItem item, uint type, int oldWidth, int oldHeight, int newWidth, int newHeight)
{
switch (type)
{
case 0x736c7020:
return(SlpStretcher.Enlarge(item.Id, item.Data, oldWidth, oldHeight, newWidth, newHeight));
case 0x62696E61:
//if (item.Id == 50006 || item.Id == 53290)
return(GuiTablePatcher.UpdateGuiTable(item.Data, item.Id, oldWidth, oldHeight, newWidth, newHeight));
return(item.Data);
default:
return(item.Data);
}
}
public static void Patch(Stream oldDrs, Stream newDrs, int oldWidth, int oldHeight, int newWidth, int newHeight)
{
var reader = new BinaryReader(oldDrs);
var writer = new BinaryWriter(newDrs);
// Header consists of Text, then 0x1A EOF, then some 0x00's, then the version
// The following code reads the whole header AND the first byte of the Version
bool foundEof = false;
while (true)
{
var byt = reader.ReadByte();
writer.Write(byt);
if (byt == 0x1A)
{
foundEof = true;
}
else if (byt != '\0' && foundEof)
{
break;
}
}
//writer.Write(reader.ReadBytes(40)); // Copyright
writer.Write(reader.ReadBytes(3)); // REST OF Version
writer.Write(reader.ReadBytes(12)); // type
var tableCount = reader.ReadUInt32(); writer.Write(tableCount);
var firstFilePos = reader.ReadUInt32(); writer.Write(firstFilePos);
var inTables = new DrsTable[tableCount];
for (var q = 0; q < tableCount; q++)
{
inTables[q] = new DrsTable();
}
foreach (var table in inTables)
{
table.Type = reader.ReadUInt32();
table.Start = reader.ReadUInt32();
var itemCount = reader.ReadUInt32();
var itemsArray = new DrsItem[itemCount];
for (var q = 0; q < itemCount; q++)
{
itemsArray[q] = new DrsItem();
}
table.Items = itemsArray;
}
foreach (var table in inTables)
{
Trace.Assert(oldDrs.Position == table.Start);
foreach (var item in table.Items)
{
item.Id = reader.ReadUInt32();
item.Start = reader.ReadUInt32();
item.Size = reader.ReadUInt32();
}
}
foreach (var item in inTables.SelectMany(table => table.Items))
{
Trace.Assert(oldDrs.Position == item.Start);
item.Data = reader.ReadBytes((int)item.Size);
}
reader.Close();
var dataPos = firstFilePos;
var outTables = new List <DrsTable>(inTables.Length);
foreach (var inTable in inTables)
{
var outItemList = new List <DrsItem>();
var outTable = new DrsTable
{
Start = inTable.Start,
Type = inTable.Type,
Items = outItemList
};
foreach (var inItem in inTable.Items)
{
var outItem = new DrsItem
{
Id = inItem.Id,
Start = dataPos,
Data = ConvertDrsItem(inItem, inTable.Type, oldWidth, oldHeight, newWidth, newHeight)
};
outItem.Size = (uint)outItem.Data.Length;
dataPos += outItem.Size;
outItemList.Add(outItem);
}
outTables.Add(outTable);
}
foreach (var outTable in outTables)
{
writer.Write(outTable.Type);
writer.Write(outTable.Start);
writer.Write(outTable.Items.Count());
}
foreach (var outTable in outTables)
{
var ndp = newDrs.Position;
Trace.Assert(ndp == outTable.Start);
foreach (var outItem in outTable.Items)
{
writer.Write(outItem.Id);
writer.Write(outItem.Start);
writer.Write(outItem.Size);
}
}
foreach (var outItem in outTables.SelectMany(outTable => outTable.Items))
{
var ndp = newDrs.Position;
Trace.Assert(ndp == outItem.Start);
writer.Write(outItem.Data);
}
writer.Close();
}