public static DatFile FromFile(string fileName)
{
var dat = new DatFile();
dat.FileName = fileName;
FileStream filestream = null;
try
{
filestream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
using (BinaryReader file = new BinaryReader(filestream, Encoding.ASCII))
{
filestream = null;
long signature = file.ReadInt64();
if (signature != DatFile.Signature)
{
throw new ArgumentException("invalid file", "fileName");
}
short groupFormat = file.ReadInt16();
short count = file.ReadInt16();
file.ReadInt16(); // images count
file.ReadInt32(); // images length
if (groupFormat != 0)
{
file.BaseStream.Position += 12;
}
file.BaseStream.Position += 4;
for (int i = 0; i < count; i++)
{
var group = new DatGroup();
group.GroupId = file.ReadInt16();
int imageCount = file.ReadInt16();
file.ReadInt32(); // length
if (groupFormat != 0)
{
file.ReadInt32(); // colors count
int m0C = file.ReadInt32();
int m10 = file.ReadInt32();
if (m0C != 0 || m10 != 0)
{
throw new InvalidDataException("unknown data found");
}
}
file.ReadInt32(); // offset
((List <DatImage>)group.Images).Capacity = imageCount;
dat.Groups.Add(group);
}
foreach (var group in dat.Groups)
{
int imageCount = ((List <DatImage>)group.Images).Capacity;
for (int i = 0; i < imageCount; i++)
{
var image = new DatImage();
image.Format = (DatImageFormat)file.ReadInt16();
image.Width = file.ReadInt16();
image.Height = file.ReadInt16();
file.ReadUInt16(); // color key
file.ReadInt16(); // colors count
image.GroupId = file.ReadInt16();
image.ImageId = file.ReadInt16();
int dataLength = file.ReadInt32();
if (dataLength < 0x2C)
{
throw new InvalidDataException("image header not found");
}
file.BaseStream.Position += 0x18;
image.OffsetX = file.ReadInt32();
image.OffsetY = file.ReadInt32();
file.BaseStream.Position += 0x08;
image.ColorsCount = (short)file.ReadInt32();
image.rawData = file.ReadBytes(dataLength - 0x2C);
group.Images.Add(image);
}
}
}
}
finally
{
if (filestream != null)
{
filestream.Dispose();
}
}
return(dat);
}
public static DatFile FromFile(string fileName)
{
var dat = new DatFile();
dat.FileName = fileName;
FileStream filestream = null;
try
{
filestream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
using (BinaryReader file = new BinaryReader(filestream, Encoding.ASCII))
{
filestream = null;
long signature = file.ReadInt64();
if (signature != DatFile.Signature)
{
throw new ArgumentException("invalid file", "fileName");
}
short groupFormat = file.ReadInt16();
short count = file.ReadInt16();
file.ReadInt16(); // images count
file.ReadInt32(); // images length
if (groupFormat != 0)
{
file.BaseStream.Position += 12;
}
file.BaseStream.Position += 4;
for (int i = 0; i < count; i++)
{
var group = new DatGroup();
group.GroupId = file.ReadInt16();
int imageCount = file.ReadInt16();
file.ReadInt32(); // length
if (groupFormat != 0)
{
file.ReadInt32(); // colors count
int m0C = file.ReadInt32();
int m10 = file.ReadInt32();
if (m0C != 0 || m10 != 0)
{
throw new InvalidDataException("unknown data found");
}
}
file.ReadInt32(); // offset
((List<DatImage>)group.Images).Capacity = imageCount;
dat.Groups.Add(group);
}
foreach (var group in dat.Groups)
{
int imageCount = ((List<DatImage>)group.Images).Capacity;
for (int i = 0; i < imageCount; i++)
{
var image = new DatImage();
image.Format = (DatImageFormat)file.ReadInt16();
image.Width = file.ReadInt16();
image.Height = file.ReadInt16();
file.ReadUInt16(); // color key
file.ReadInt16(); // colors count
image.GroupId = file.ReadInt16();
image.ImageId = file.ReadInt16();
int dataLength = file.ReadInt32();
if (dataLength < 0x2C)
{
throw new InvalidDataException("image header not found");
}
file.BaseStream.Position += 0x18;
image.OffsetX = file.ReadInt32();
image.OffsetY = file.ReadInt32();
file.BaseStream.Position += 0x08;
image.ColorsCount = (short)file.ReadInt32();
image.rawData = file.ReadBytes(dataLength - 0x2C);
group.Images.Add(image);
}
}
}
}
finally
{
if (filestream != null)
{
filestream.Dispose();
}
}
return dat;
}