protected void Decode(BinaryReader inp, FileInfo dstF)
{
textCoveragePool.Clear();
imageCoveragePool.Clear();
using var pout = new StreamWriter(dstF.FullName, false, new UTF8Encoding(true));
pout.NewLine = NewLine;
bool commandMode = false;
while (inp.BaseStream.HasRemaining())
{
pout.Write("[{0:x8}]", inp.BaseStream.Position);
pos = dstF.FullName + ":" + inp.BaseStream.Position.ToString("x");
currentOpcodeOffset = inp.BaseStream.Position;
int opcode = inp.ReadByte() & 0xFF;
long lastPosition = inp.BaseStream.Position;
string GetRemainingByteCodes()
{
long remainingByteLength = inp.BaseStream.Position - lastPosition;
inp.BaseStream.Position = lastPosition;
byte[] remainingBytes = new byte[remainingByteLength];
inp.BaseStream.Read(remainingBytes, 0, (int)remainingByteLength);
return(string.Join(" ", remainingBytes.Select(e => e.ToString("x2"))));
}
if (WorkAround.Make(currentOpcodeOffset, currentFileName, inp, jumpTable, pout))
{
continue;
}
else
{
pout.Write("{0:x2}", opcode);
}
if (commandMode)
{
commandMode = false;
Opcode op = Opcode.Get(opcode);
if (op == null)
{
if (unsupportedOpCodes.Add(opcode))
{
Log.Write(string.Format(" [Unknown] Unsupported opcode: {0:x2} ({1}) at {2:x8}", opcode, opcode, currentOpcodeOffset));
}
pout.Write(": unsupported {0} ", opcode);
}
else
{
string result = null;
try
{
result = DecodeOp(op);
var remaining = GetRemainingByteCodes();
pout.Write(remaining.Length == 0 ? remaining : (" " + remaining));
pout.Write(": ");
if (result != null)
{
pout.Write(result);
}
}
catch (Exception re)
{
Log.Write($" [Error] Exception while decoding opcode ({op}) {dstF.FullName}:{inp.BaseStream.Position}");
Log.Write(re.ToString());
}
}
}
else if (opcode == 0x10)
{
pout.Write(": ");
commandMode = true;
}
else
{
Opcode op = Opcode.Get(opcode);
if (op == Opcode.end ||
op == Opcode.waitForSFX ||
op == Opcode.gotoif ||
op == Opcode._switch ||
op == Opcode.varop ||
op == Opcode.text ||
Opcode.rest.ContainsKey(opcode))
{
string result = null;
try
{
if (Opcode.rest.ContainsKey(opcode))
{
result = DecodeOpRest(opcode);
}
else
{
result = DecodeOp(op);
}
var remaining = GetRemainingByteCodes();
pout.Write(remaining.Length == 0 ? remaining : (" " + remaining));
pout.Write(": ");
if (result != null)
{
pout.Write(result);
}
}
catch (Exception re)
{
Log.Write(" [Error] Exception while decoding opcode (" +
$"{(op == null ? opcode.ToString() : op.ToString())}) " + pos);
Log.Write(re.ToString());
}
}
else
{
pout.Write(": unsupported");
}
}
pout.WriteLine();
}
if (textCoveragePool.Count < textTable.Length)
{
Log.Write(" [Warn] Text coverage not covered all texts! (" + textCoveragePool.Count + "/" + textTable.Length + ")");
}
if (imageCoveragePool.Count < graphicsTable.Length)
{
Log.Write(" [Warn] Graphics coverage not covered all images! (" + imageCoveragePool.Count + "/" + graphicsTable.Length + ")");
var unusedImages = new List <string>();
for (var i = 0; i < graphicsTable.Length; i++)
{
if (!imageCoveragePool.Contains(i))
{
unusedImages.Add(ReadText(input, graphicsTable[i]));
}
}
Log.Write(" [Warn] Unused images: " + string.Join(" ", unusedImages));
}
}
public static string ReadExpr(BinaryReader buf, long lastPosition = -1)
{
var _position = "";
if (lastPosition > 0)
{
_position = string.Format(" at {0:x8}", lastPosition);
}
int arg0 = buf.ReadByte() & 0xFF;
if (arg0 == 0xC0)
{
int mode = arg0;
int val = buf.ReadByte() & 0xFF;
return(string.Format("VAR_{0:x2}_{1}", mode, val));
}
else if (arg0 >= 0xC1 && arg0 <= 0xCF)
{
int mode = arg0;
int a = buf.ReadInt16() & 0xFFFF;
int b = buf.ReadInt16() & 0xFFFF;
return(string.Format("VAR_{0:x2}_{1}_{2}", mode, a, b));
}
else if (arg0 >= 0xA0 && arg0 <= 0xAF)
{
int m = arg0;
int a = buf.ReadByte() & 0xFF;
int b = buf.ReadByte() & 0xFF;
int nil = buf.ReadByte();
if (nil != 0)
{
Log.Write(" [Unknown] I thought exprs ended with 0x00, but got: " + nil + _position);
}
if (b == 0 && nil == 0)
{
return((256 * (m - 0xA0) + a).ToString());
}
else if (m == 0xA4)
{
return(KIDUtil.GetVarname(string.Format("{0:x2}", a)));
}
return(string.Format("CONST_{0:x2}_{1:x2}_{2:x2}", m, a, b));
}
else if (arg0 >= 0xB0 && arg0 <= 0xBF)
{
int m = arg0;
int a = buf.ReadByte() & 0xFF;
int b = buf.ReadByte() & 0xFF;
int nil = buf.ReadByte();
if (nil != 0)
{
Log.Write(" [Unknown] I thought negative exprs ended with 0x00, but got: " + nil + _position);
}
if (b == 0 && nil == 0)
{
return((256 * (m - 0xBF) + (a - 0x100)).ToString());
}
else if (m == 0xB4)
{
return(KIDUtil.GetVarname(string.Format("{0:x2}", a)));
}
return(string.Format("CONST_{0:x2}_{1:x2}_{2:x2}", m, a, b));
}
else if (arg0 >= 0x80 && arg0 <= 0x8F)
{
int a = arg0 - 0x80; //Constant
int b = buf.ReadByte() & 0xFF;
if (b != 0)
{
Log.Write(string.Format(
" [Unknown] I don't really know what to do with 2-byte constants: {0:x2} {1:x2}{2}",
arg0, b, _position));
}
int nil = buf.ReadByte();
if (nil != 0)
{
Log.Write(" [Unknown] I thought exprs ended with 0x00, but got: " + nil + _position);
}
return("" + a);
}
else if (arg0 == 0x28)
{
int arg1 = buf.ReadByte() & 0xFF;
if (arg1 != 0x0a)
{
Log.Write(" [Unknown] I thought 0x28 is always followed by 0x0a, but got: " + arg1 + _position);
}
return(ReadExpr(buf));
}
else if (arg0 == 0xe0)
{
int rColor = buf.ReadByte() & 0xFF;
int gColor = buf.ReadByte() & 0xFF;
int bColor = buf.ReadByte() & 0xFF;
int null1 = buf.ReadByte();
int null2 = buf.ReadByte();
int null3 = buf.ReadByte();
if (null1 != 0 || null2 != 0 || null3 != 0)
{
Log.Write(" [Unknown] I thought 0xe0 color code is always ended by three 0x00, at " + _position);
}
return(string.Format($"rgb({rColor},{gColor},{bColor})"));
}
else
{
if (!WorkAround.CanSuppressVaropError(arg0))
{
Log.Write(" [Unknown] What kind of expr is this? " + arg0 + _position);
}
return("" + arg0);
}
}