private static byte[] getDataRF(BinaryReader br, long baseP, out long ramOffset, out long fileOffset)
{
ulong num = br.ReadUInt64();
ramOffset = 256u * (((uint)(num >> 0x20)) & 0x3FFFu);
int bw = ((int)(num >> 0x30)) & 0x3F;
uint type = ((uint)(num >> 0x38)) & 0x3F;
#if TRACE
br.BaseStream.Position += 8;
Trace.Assert((num & 0x3fff) == 0);
Trace.Assert(((num >> 16) & 0x3f) == 0);
Trace.Assert(((num >> 0x18) & 0x3f) == 0);
num = br.ReadUInt64();
br.BaseStream.Position += 8;
Trace.Assert((num & 0x7ff) == 0);
Trace.Assert(((num >> 0x10) & 0x7ff) == 0);
Trace.Assert(((num >> 0x20) & 0x7ff) == 0);
Trace.Assert(((num >> 0x30) & 0x7ff) == 0);
Trace.Assert(((num >> 0x3b) & 3) == 0);
br.BaseStream.Position += 16;
Trace.Assert((br.ReadUInt64() & 2) == 0);
br.BaseStream.Position += 8;
#else
br.BaseStream.Position += 8 + 16 + 16 + 16;
#endif
int size = (br.ReadUInt16() & 0x7FFF) << 4;
br.BaseStream.Position += 0x12L;
br.BaseStream.Position = fileOffset = baseP + br.ReadInt32();
var buffer = new byte[size];
Debug.WriteLine("Reading " + size + " bytes...");
#if DEBUG
{
int t = br.BaseStream.Read(buffer, 0, size);
Debug.WriteLineIf(t != size, "Expected " + size + " bytes, but only got " + t + " bytes!");
}
#else
br.BaseStream.Read(buffer, 0, size);
#endif
Debug.WriteLine("bw = " + bw + "; type = " + type + "; size = " + size);
size /= 8192;
switch (type)
{
case 0:
if (bw > 0)
{
buffer = Reform.Encode32(buffer, bw, size / bw);
}
break;
case 19:
bw /= 2;
if (bw > 0)
{
buffer = Reform.Encode8(buffer, bw, size / bw);
}
break;
case 20:
bw /= 2;
if (bw > 0)
{
buffer = Reform.Encode4(buffer, bw, size / bw);
}
break;
default:
throw new NotSupportedException("Unknown type: " + type);
}
return(buffer);
}
private void parseD(long pos, long len, int index)
{
if (pos + len > file.BaseStream.Length)
{
throw new IndexOutOfRangeException("IMGD goes past file bounds");
}
file.Seek(pos, SeekOrigin.Begin);
if (file.ReadUInt32() != 0x44474D49)
{
throw new InvalidDataException("IMGD has bad signature");
}
#if DEBUG
uint pixelOffset, pixelLength, paletteOffset, paletteLength;
ushort width, height, type;
byte encode;
Debug.WriteLine(
String.Format(
"---IMGD---\nN0: {0}\npixelOffset: {1}\npixelLength: {2}\npaletteOffset: {3}\npaletteLength: {4}\nN5: {5}\nN6: {6}\nwidth: {7}\nheight: {8}\nN9: {9}\nN10: {10}\ntype: {11}\nN12: {12}\nN13: {13}\nN14: {14}\nN15: {15}\nN16: {16}\nencode: {17}\n---IMGD End---",
file.ReadUInt32(),
pixelOffset = file.ReadUInt32(),
pixelLength = file.ReadUInt32(),
paletteOffset = file.ReadUInt32(),
paletteLength = file.ReadUInt32(),
file.ReadUInt16(),
file.ReadUInt16(),
width = file.ReadUInt16(),
height = file.ReadUInt16(),
file.ReadUInt32(),
file.ReadUInt16(),
type = file.ReadUInt16(),
file.ReadUInt32(),
file.ReadUInt32(),
file.ReadUInt32(),
file.ReadUInt32(),
file.ReadUInt32(),
encode = file.ReadByte()
));
#else
this.file.Seek(4, SeekOrigin.Current);
uint pixelOffset = this.file.ReadUInt32(),
pixelLength = this.file.ReadUInt32(),
paletteOffset = this.file.ReadUInt32(),
paletteLength = this.file.ReadUInt32();
this.file.Seek(4, SeekOrigin.Current);
ushort width = this.file.ReadUInt16(),
height = this.file.ReadUInt16();
this.file.Seek(6, SeekOrigin.Current);
ushort type = this.file.ReadUInt16();
this.file.Seek(20, SeekOrigin.Current);
byte encode = this.file.ReadByte();
#endif
if (pixelOffset + pixelLength > len)
{
throw new IndexOutOfRangeException("IMGD pixel data goes past file bounds");
}
if (paletteOffset + paletteLength > len)
{
throw new IndexOutOfRangeException("IMGD palette data goes past file bounds");
}
PixelFormat pf;
switch (type)
{
case 19:
pf = PixelFormat.Format8bppIndexed;
break;
case 20:
pf = PixelFormat.Format4bppIndexed;
break;
default:
throw new NotSupportedException("Unsupported IMGD type");
}
var bmp = new Bitmap(width, height, pf);
{
file.Seek(pos + pixelOffset, SeekOrigin.Begin);
byte[] buffer = file.ReadBytes((int)pixelLength);
switch (pf)
{
case PixelFormat.Format8bppIndexed:
if (encode == 7)
{
buffer = Reform.Decode8(Reform.Encode32(buffer, width / 128, height / 64), width / 128, height / 64);
}
break;
case PixelFormat.Format4bppIndexed:
if (encode == 7)
{
buffer = Reform.Decode4(Reform.Encode32(buffer, width / 128, height / 128), width / 128,
height / 128);
}
else
{
Reform.swapHLUT(buffer);
}
break;
}
BitmapData pix = bmp.LockBits(Rectangle.FromLTRB(0, 0, width, height), ImageLockMode.WriteOnly, pf);
try
{
Marshal.Copy(buffer, 0, pix.Scan0, (int)pixelLength);
}
finally
{
bmp.UnlockBits(pix);
}
}
{
file.Seek(pos + paletteOffset, SeekOrigin.Begin);
byte[] buffer = file.ReadBytes((int)paletteLength);
ColorPalette palette = bmp.Palette;
//Because of rounding, when reading values back use Math.Ceiling(input/2)
switch (pf)
{
case PixelFormat.Format8bppIndexed:
for (int i = 0; i < 256; i++)
{
palette.Entries[Reform.paletteSwap34(i)] = Color.FromArgb(
Math.Min(buffer[(i * 4) + 3] * 2, 255), buffer[i * 4], buffer[(i * 4) + 1], buffer[(i * 4) + 2]);
Debug.WriteLineIf(buffer[(i * 4) + 3] > 128,
"Transparency before transform is over 128: " + buffer[(i * 4) + 3]);
}
break;
case PixelFormat.Format4bppIndexed:
for (int i = 0; i < 16; i++)
{
palette.Entries[i] = Color.FromArgb(Math.Min(buffer[(i * 4) + 3] * 2, 255), buffer[i * 4],
buffer[(i * 4) + 1], buffer[(i * 4) + 2]);
Debug.WriteLineIf(buffer[(i * 4) + 3] > 128,
"Transparency before transform is over 128: " + buffer[(i * 4) + 3]);
}
break;
}
bmp.Palette = palette;
}
bmps.Add(bmp);
}