/// <param name="stream">
/// Stream containing ILBM image data.
/// </param>
public ILBMImage(Stream stream)
{
//BinaryReader reader = new BinaryReader(stream, Encoding.ASCII);
//ReadNext(reader);
IFFReader reader = new IFFReader(stream);
var file = reader.ReadFileHeader();
if (file.FormatID != "PBM ")
{
throw new NotSupportedException("This is not supported IBLM file.");
}
foreach (IFFChunk chunk in reader.ReadAll())
{
switch (chunk.TypeID)
{
case "BMHD":
Width = reader.ReadInt16();
Height = reader.ReadInt16();
PosX = reader.ReadInt16();
PosY = reader.ReadInt16();
NumPlanes = reader.ReadByte();
Mask = reader.ReadByte();
Compression = reader.ReadByte();
Padding = reader.ReadByte();
Transparent = reader.ReadInt16();
AspectRatio = reader.ReadInt16();
PageWidth = reader.ReadInt16();
PageHeight = reader.ReadInt16();
break;
case "CMAP":
Color[] pal = new Color[chunk.Length / 3];
for (int i = 0; i < pal.Length; i++)
{
byte R = reader.ReadByte();
byte G = reader.ReadByte();
byte B = reader.ReadByte();
pal[i] = Color.FromArgb(R, G, B);
}
Palette = ImagePalette.Create(pal);
break;
case "GRAB":
HotspotX = reader.ReadInt16();
HotspotY = reader.ReadInt16();
break;
case "CRNG":
if (ColorRanges == null)
{
ColorRanges = new List <ColorRange>();
}
ColorRanges.Add(new ColorRange(reader));
break;
case "TINY":
short width = reader.ReadInt16();
short height = reader.ReadInt16();
byte[] tiny;
if (Compression == 1)
{
tiny = reader.ReadUnpack(chunk.Length - 4);
}
else
{
tiny = reader.ReadBytes(chunk.Length - 4);
}
Tiny = new TinyImage(width, height, tiny);
break;
case "BODY":
if (Compression == 1)
{
ImageData = reader.ReadUnpack(chunk.Length);
}
else
{
ImageData = reader.ReadBytes(chunk.Length);
}
break;
}
}
}
