public static DDTImage Load(Stream file)
{
long beg = file.Position;
var reader = new BinaryReader(file);
string header = "";
for (int h = 0; h < 3; ++h) header += reader.ReadChar();
if (header != "RTS") throw new InvalidDataException();
int version = (int)reader.ReadChar() - (int)'0';
if (version == 3) {
var img = new DDTImage();
var serializer = new SerialReader(new BinaryReader(file));
SerializeHeader(ref img.Header, serializer);
int numColors = (img.Palette != null ? img.Palette.Length : 0);
int[] paletteOffs = new int[5];
if (img.Header.Format == ImageHeader.FormatE.Palette) {
// TODO: paletteOffs[img.Header.AlphaBits] = palette offset
serializer.Serialize(ref numColors);
int unknown02 = 0;
int palette15Off = 0;
serializer.Serialize(ref unknown02);
serializer.Serialize(ref paletteOffs[0]); //16
serializer.Serialize(ref palette15Off);
serializer.Serialize(ref paletteOffs[1]); //15b
serializer.Serialize(ref paletteOffs[4]); //12
}
List<Tuple<int, int>> images = new List<Tuple<int, int>>();
for (int l = 0; l < img.Header.MipLevels; ++l) {
int off = reader.ReadInt32();
int len = reader.ReadInt32();
images.Add(new Tuple<int,int>(off, len));
}
if (img.Header.Format == ImageHeader.FormatE.Palette) {
file.Seek(beg + paletteOffs[img.Header.AlphaBits], SeekOrigin.Begin);
byte[] paletteData = new byte[numColors * 2];
file.Read(paletteData, 0, paletteData.Length);
img.Palette = new Pixel[numColors];
switch (img.Header.AlphaBits) {
case 0: Convert565ToRGB(paletteData, 0, img.Palette); break;
case 1: Convert555ToRGB(paletteData, 0, img.Palette); break;
case 4: Convert444ToRGB(paletteData, 0, img.Palette); break;
}
}
file.Seek(beg + images[0].Item1, SeekOrigin.Begin);
byte[] bytes = new byte[images[0].Item2];
reader.Read(bytes, 0, bytes.Length);
img.PixelData = bytes;
return img;
}
return null;
}
public static DDTImage Load(Stream file)
{
long beg = file.Position;
var reader = new BinaryReader(file);
string header = "";
for (int h = 0; h < 3; ++h)
{
header += reader.ReadChar();
}
if (header != "RTS")
{
throw new InvalidDataException();
}
int version = (int)reader.ReadChar() - (int)'0';
if (version == 3)
{
var img = new DDTImage();
var serializer = new SerialReader(new BinaryReader(file));
SerializeHeader(ref img.Header, serializer);
int numColors = (img.Palette != null ? img.Palette.Length : 0);
int[] paletteOffs = new int[5];
if (img.Header.Format == ImageHeader.FormatE.Palette)
{
// TODO: paletteOffs[img.Header.AlphaBits] = palette offset
serializer.Serialize(ref numColors);
int unknown02 = 0;
int palette15Off = 0;
serializer.Serialize(ref unknown02);
serializer.Serialize(ref paletteOffs[0]); //16
serializer.Serialize(ref palette15Off);
serializer.Serialize(ref paletteOffs[1]); //15b
serializer.Serialize(ref paletteOffs[4]); //12
}
List <Tuple <int, int> > images = new List <Tuple <int, int> >();
for (int l = 0; l < img.Header.MipLevels; ++l)
{
int off = reader.ReadInt32();
int len = reader.ReadInt32();
images.Add(new Tuple <int, int>(off, len));
}
if (img.Header.Format == ImageHeader.FormatE.Palette)
{
file.Seek(beg + paletteOffs[img.Header.AlphaBits], SeekOrigin.Begin);
byte[] paletteData = new byte[numColors * 2];
file.Read(paletteData, 0, paletteData.Length);
img.Palette = new Pixel[numColors];
switch (img.Header.AlphaBits)
{
case 0: Convert565ToRGB(paletteData, 0, img.Palette); break;
case 1: Convert555ToRGB(paletteData, 0, img.Palette); break;
case 4: Convert444ToRGB(paletteData, 0, img.Palette); break;
}
}
file.Seek(beg + images[0].Item1, SeekOrigin.Begin);
byte[] bytes = new byte[images[0].Item2];
reader.Read(bytes, 0, bytes.Length);
img.PixelData = bytes;
return(img);
}
return(null);
}
